ЖИДКОКРИСТАЛЛИЧЕСКОЕ ДИСПЛЕЙНОЕ УСТРОЙСТВО

Светодиод (LED) (31) присоединяется к подложке (11) активной матрицы, и светоизлучающая поверхность (31L) диода LED (31) располагается на стороне внешней поверхности (11Т) подложки, соответствующей подложке (11) активной матрицы. Технический результат - упрощение внутренней структуры устройства. 4 з.п. ф-лы, 12 ил.

УСТРОЙСТВО ЗАДНЕЙ ПОДСВЕТКИ И ДИСПЛЕЙНОЕ УСТРОЙСТВО, СНАБЖЕННОЕ ТАКИМ УСТРОЙСТВОМ

Изобретение относится к области светотехники и может быть использовано в устройствах задней подсветки. Техническим результатом является повышение равномерности распределения света. Устройство задней подсветки (10) снабжено СИД (11) и световодной пластиной (12), которая включает в себя поверхность (12a) входа света и поверхность (12b) выхода света. Наклонная поверхность (12c), которая наклонена от поверхности выхода света, сформирована между поверхностью входа света и поверхностью выхода света световодной пластины, и световодная пластина сформирована так, что толщина участка, поперечного поверхности входа света, больше, чем толщина участка на стороне поверхности выхода света. Спереди участка на стороне поверхности входа света поверхности выхода света световыводящей пластины размещен регулирующий элемент (13), который имеет светоблокирующую характеристику и регулирует сдвиг световодной пластины в направлении толщины световодной пластины. 2 н. и 9 з.п. ф-лы, 10 ил., 1 табл.

ОСВЕЩАЮЩЕЕ ОСТЕКЛЕНИЕ С ПЕЧАТНЫМ ПРОМЕЖУТОЧНЫМ СЛОЕМ

... 1. Многослойное освещающее остекление, содержащее:первый лист (1) из минерального или органического стекла с первой основной стороной (11), второй основной стороной (12) и кромкой (13),второй лист (2) из минерального или органического стекла с первой основной стороной (21), второй основной стороной (22) и кромкой (23),прозрачный ламинирующий промежуточный слой (3), адгезивно контактирующий со второй основной стороной (12) первого листа (1) и с первой основной стороной (21) второго листа (2),по меньшей мере, полосу светодиодов (LED), содержащую плату с печатными проводниками (РСВ) (41) и множество светодиодов (42), расположенных напротив кромки (13) первого листа (1),один или несколько рассеивающих элементов, расположенных предпочтительно на одной из основных сторон первого листа или в толще первого листа,отличающееся тем, что ламинирующий промежуточный слой (3) содержит, по меньшей мере, на одной из своих сторон печатный непрозрачный маскирующий слой (6), отходящий от края прокладки к центру ...

Устройство дл демонстрации информации

... 1. Устройство для демонстрации информации, содержащее светопроводящий элемент из оптически-прозрачного материла с полированными поверхностями, по меньшей мере, на одной из которых размещен, по меньшей мере, один диффузно отражающий знак, источник света для подсветки диффузно-отражающего знака, отличающееся тем, что устройство снабжено, по меньшей мере, одним дополнительным светопроводящим элементом из оптически-прозрачного материала с полированными поверхностями, на одной из которых размещен, по крайней мере, один диффузно-отражающий знак, и который выполнен конформным по отношению к имеющемуся светопроводящему элементу, и устройство снабжено, по меньшей мере, одним дополнительным источником света для подсветки диффузно-отражающего знака, при этом для подсветки диффузно-отражающих знаков установлены точечные источники света и устройство снабжено блоком электронно-программного управления точечными источниками света. 2. Устройство по п.1, отличающееся тем, что светопроводящие элементы со ...

МУЛЬТИПЛЕКСОР И ДЕМУЛЬТИПЛЕКСОР МНОГОКРАТНОГО ОТРАЖЕНИЯ

... 1. Устройство для маршрутизации оптических сигналов в зависимости от их длин волн, включающее общий тракт для передачи нескольких сигналов различных длин волн, каждый из которых имеет заданное количество энергии, распределенной по полю моды, несколько отдельных трактов для раздельной передачи сигналов различных длин волн, формирователь разности длин оптических путей, имеющий множество промежуточных путей различной длины для соединения этих общего и отдельных трактов, причем указанный формирователь разности длин оптических путей содержит составной расщепитель луча для отклонения части энергии из множества мест поля моды для каждого из сигналов различных длин волн вдоль одного из промежуточных путей различной длины, отклонения части оставшейся энергии из множества мест поля моды для каждого из сигналов различных длин волн вдоль другого из промежуточных путей различной длины и продолжения отклонения последующих частей оставшейся энергии из множества мест поля моды для каждого из сигналов различных ...

Ausstiegleuchte und Ausstiegleuchte mit Logo

Die Erfindung ermöglicht die Bereitstellung einer breiten lichtemittierenden Oberfläche ohne Verwendung eines großen Lichtleiters, wobei die Flexibilität bei der Steuerung einer Abstrahlrichtung und eines Abstrahlungsbereichs des Lichts der Ausstiegleuchte sichergestellt ist. Eine Ausstiegleuchte 10 mit Logo oder eine Ausstiegleuchte 44 ist in einem Teil an der Innenseite einer Tür eines Fahrzeugs installiert. Die Ausstiegleuchte 10 mit Logo oder die Ausstiegleuchte 44 umfasst eine Lichtquelle 34, einen Lichtleiter 32 und eine äußere Linse 14. Der Lichtleiter 32 umfasst eine Lichteingabefläche 32a, die eine Eingabe von Licht von der Lichtquelle 34 ermöglicht, einen Lichtleiterabschnitt 32b, der von der Lichteingabefläche 32a eingegebenes Licht leitet, und eine Lichtausgabefläche 32c, die die Ausgabe des von dem Lichtleiterabschnitt 32b geleiteten Lichts ermöglicht. Die äußere Linse 14 umfasst einen Übertragungs-/Diffusionsabschnitt 14V. Der Übertragungs-/Diffusionsabschnitt 14V ermöglicht ...

Anzeigenhintergrund-Beleuchungsmodul und Anzeigegerät

Ein Anzeigenhintergrund-Beleuchtungsmodul (100), umfassend:- einen Lichtsammler (140), dahingehend ausgelegt, Umgebungslicht zu sammeln;- eine Vielzahl an optischen Fasern (111), die mit dem Lichtsammler (140) verbunden sind;- ein Substrat zur Abgabe des Lichts aus den Fasern (120), welches mit den optischen Fasern (111) verbunden ist, wobei das Substrat zur Abgabe des Lichts aus den Fasern eine Vielzahl an lichtauskoppelnden Öffnungen (121) enthält, die hinsichtlich einer Abgabe der Lichtstrahlen ausgelegt sind, die von den optischen Fasern (111) übertragen werden;- eine Lichtleiter-Platte (130), die an einer Seite des Substrats zur Abgabe des Lichts aus den Fasern (120) platziert ist; und- eine Vorrichtung zur Lichtankopplung (102), die zwischen dem Substrat zur Abgabe des Lichts aus den Fasern (120) und der Lichtleiter-Platte (130) platziert ist, wobei die Vorrichtung zur Lichtankopplung (102) eine Vielzahl an Vertiefungen zur Lichtzerstreuung (104) enthält und die Vertiefungen zur Lichtzerstreuung ...

Illuminations-Vorrichtung mit homogen ausgeleuchteter langschmaler Lichtemissionsfläche

Mittels einer externen Lichtquelle (200) zu bestrahlende Illuminations-Vorrichtung (100) mit einer langschmalen Emissionsfläche (110) für ein Emittieren von Licht, dadurch gekennzeichnet, dass die Emissionsfläche (110) als Teil eines Illuminationskörpers (101) ausgebildet ist, der eine in einem spitzen Winkel zur Emissionsfläche (110) angeordnete interne Reflektorfläche (120) sowie eine senkrecht zur Emissionsfläche (110) angeordnete lichtaufnehmende Kollektorfläche (122) aufweist, die als der Emissionsfläche (110) ferner Teil einer senkrecht zur Emissionsfläche (110) angeordneten Seitenfläche (121) des Illuminationskörpers (101) ausgebildet ist.

Beleuchtungsvorrichtung für Fahrzeuge

Die Erfindung betrifft eine Beleuchtungsvorrichtung für Fahrzeuge mit einem flächigen Lichtleitkörper, enthaltend zwei gegenüberliegende Flachseiten, an denen durch Totalreflexion Licht von einer Lichteinkoppelseite des Lichtleitkörpers zu einer Lichtauskoppelseite desselben übertragen wird, eine an der Lichteinkoppelseite angeordnete Schmalseite, der eine Mehrzahl von entlang der Schmalseite beabstandet zueinander angeordneter Leuchtelemente zugeordnet ist zur Einkopplung des Lichtes in den Lichtleitkörper, wobei die Schmalseite in mindestens einer senkrecht zu den Flachseiten verlaufenden Ermindest in einem eine Lichteinkoppelstelle bildenden Lichteinkoppelabschnitt derselben uneben ausgebildet ist.

Kraftfahrzeug mit einer Leuchtvorrichtung

Die Erfindung betrifft ein Kraftfahrzeug (100), umfassend ein Karosserieteil (90), welches einen inneren Bereich (10) von einem äußeren Bereich (20) des Kraftfahrzeugs (100) zumindest teilweise räumlich trennt und eine Öffnung (15) aufweist, eine Leuchtvorrichtung (50), umfassend mindestens ein Leuchtmittel (40), einen Lichtleiter (35) mit einer Einkoppelfläche (34) und einer Auskoppelfläche (36), wobei die Einkoppelfläche (34) vor dem mindestens einen Leuchtmittel (40) angeordnet ist, so dass von dem Leuchtmittel (40) emittiertes Licht (99) in die Einkoppelfläche (34) eingestrahlt wird. Es ist vorgesehen, dass die Leuchtvorrichtung (50) im Wesentlichen im inneren Bereich (10) des Kraftfahrzeugs (100) angeordnet ist, und der Lichtleiter (35) mit seiner Auskoppelfläche (36) von innen in die Öffnung (15) des Karosserieteils (90) hineinragt.

Leuchteinheit für Fahrzeuge mit einem Scheibenkörper vor einem flächigen Lichtleitelement

Leuchteinheit für Fahrzeuge mit einem Gehäuse, mit einer Lichtquelle und mit einem flächigen Lichtleitelement enthaltend eine als Lichteinkoppelfläche ausgebildete und der Lichtquelle zugewandte Schmalseite zum Einkoppeln von Licht der Lichtquelle, eine als Lichtauskoppelfläche ausgebildete und der Lichtquelle abgewandte Schmalseite zum Auskoppeln des Lichtes zur Bildung einer vorgegebenen Lichtfunktion und zwischen den gegenüberliegenden Schmalseiten verlaufende Flachseiten, an denen jeweils das eingekoppelte Licht totalreflektierbar ist, wobei in Hauptabstrahlrichtung (10) vor dem flächigen Lichtleitelement (3, 3', 3") ein Scheibenkörper (2) vorgesehen ist, der einen die Lichtauskoppelfläche (8) des flächigen Lichtleitelementes (3, 3', 3") und/oder eine weitere Leuchteinheit abdeckenden Scheibenabschnitt (2") mit einer Lichtauskoppelfläche (5) als eine Vorderseite derselben einerseits und einen der Lichtauskoppelfläche (8) des flächigen Lichtleitelementes (3, 3', 3") zugewandten Lichtleitabschnitt ...

ASYMMETRISCHE LICHTLEITERANORDNUNG

Offenbart wird eine Lichtleiteranordnung (1) mit einer solchen asymmetrischen Ausgestaltung, dass eine Sekundärlumineszenz (24) vermeidend/reduzierend von einem benachbarten Lichtleiterabschnitt (2) kommende Lichtstrahlen (18) nicht zu einer Einkoppelfläche (4) intern reflektiert werden.

Portable data processing apparatus with backlit display screen and shell of such an apparatus

Collimating waveguide apparatus and method

SYSTEM FOR DISPLAYING A POINT ON A TRANSPARENT OR TRANSLUCENT SCREEN

... 1394541 Display screens SOC ECA 5 March 1973 [31 March 1972] 10552/73 Heading G5C A point A of a light-transmitting screen 1 is illuminated by a plurality of light beams directed through the edges thereof. As shown in Fig. 1, mirror systems 3, 4, 5 are positioned at the corners of the screen to divide a coherent light beam 6 into three beams a, b, c which intersect at A. The corners are recessed at 26 to facilitate entry of the light beams. Partially reflecting mirrors 7 and 15 together with totally reflecting mirror 20 are rotatable in order to vary the position of point A. In a second embodiment, the three light beams a, b, c are provided by three lasers together with means for deflecting the light beams in the desired directions. The beams may be of different colours.

Light guide for a lighting device

Backlight module and display

Display and indicating panel

BELEUCHTUNGSANORDNUNG

PROCEDURE AND PLASTIC SPRAYING DEVICE FOR THE PRODUCTION OF A LIGHT GUIDANCE BODY AND LIGHT GUIDANCE BODY

LIGHTING ARRANGEMENT

Light-guiding element for influencing a light emitted by light output of LEDs and arrangement for such a light-guiding element and lamp with

Lichtleitelement zur Beeinflussung eines von LEDs abgestrahlten Lichts, wobei sich (5) das Lichtleitelement entlang einer Längsachse (L) erstreckt, aufweisend - einen, zum Eintritt des Lichts ausgebildeten seitlichen Kantenbereich (2), der sich parallel zu der Längsachse (L) erstreckt, - einen, zum Austritt des Lichts vorgesehen Lichtaustrittsbereich (3), der sich ebenfalls parallel zu der Längsachse (L) erstreckt, wobei zwischen dem Kantenbereich (2) und dem Lichtaustrittsbereich (3) ein Zwischenbereich (4) zur Leitung des Lichts gebildet ist, dadurch gekennzeichnet, dass der Kantenbereich (2) dazu ausgestaltet ist, den Verlauf des Lichts in einer, parallel zu der Längsachse (L) orientierten Ebene (E) zu entblenden bzw. zu bündeln und der Lichtaustrittsbereich (3) dazu ausgestaltet ist, den Verlauf des Lichts in einer weiteren Ebene (E') zu entblenden bzw. zu bündeln, wobei die weitere Ebene (E') normal zu der Längsachse (L) und dabei senkrecht zu der zuerst genannten Ebene (E) orientiert ...

EQUIPMENT WITH A CHARACTERISTIC CARRIER

Lichtleitplatte sowie Leuchte mit dieser Lichtleitplatte

Die vorliegende Erfindung betrifft Flächige Lichtleitplatte (100) für eine Leuchte, aufweisend: zwei flächige Seiten (101, 102), welche durch eine umlaufende Stirnseite (103) miteinander verbunden sind, Einkoppelstrukturen (200), die an der Stirnseite (103) vorgesehen und dazu eingerichtet sind, Licht von Außerhalb in die Lichtleitplatte (100) einzukoppeln, und Auskoppelstrukturen (300 ), die an einer der flächigen Seiten (101, 102) vorgesehen sind, um das über die Einkoppelstrukturen (200) eingekoppelte Licht in der Lichtleitplatte (100) derart umzulenken, um es über eine der flächigen Seiten (101,102) aus der Lichtleitplatte (100) auszukoppeln. Die Einkoppelstrukturen (200) sind derart ausgebildet, um das eingekoppelte Licht als gerichtete Strahlbündel (400) einzukoppeln. Die Auskoppelstrukturen (300) weisen eine längliche Form auf. Die Auskoppelstrukturen (300) erstrecken sich mit ihrer Längsachse im Wesentlichen in der flächigen Ebene der Lichtleitplatte (100). Die Orientierung jeder ...

LCD LIGHTGUIDE

MODE-SELECTABLE BACKLIGHT, METHOD, AND DISPLAY EMPLOYING DIRECTIONAL SCATTERING FEATURES

A mode-selectable backlight and display employ a plurality of directional scattering features to provide emitted light. The mode-selectable backlight includes a light guide, a first directional scattering feature to provide first emitted light from guided light having a first propagation direction within the light guide in a first operational mode, and a second directional scattering feature to provide second light from guided light having a second propagation direction within the light guide in a second operational mode. The second emitted light comprises a plurality of directional light beams having different principal angular directions from one another and the first propagation direction differing from the second propagation direction. The mode-selectable display further includes a plurality of light sources to provide the guided light and an array of light valves configured to modulate the emitted light as a displayed image.

BACKLIGHT FOR LIQUID CRYSTAL DEVICES

A backlight system for liquid crystal device display is equipped with a dual lighting system for day viewing and compatible with night vision systems. The day lighting system uses conventional fluorescent or incandescent lamps for full color display during daytime use. The night lighting system uses a light source which is either filtered to remove infrared and near infrared wavelengths or which is chosen from a class of sources which does not emit such wavelengths. The day lighting system is disabled while the night system is in use.

System for lighting reflective information display device of i.e. watch, has light extraction zone provided with light extractors, and light guide provided with plane light injection and collimation zone in form of parabola

The system has a light guide (30) provided with a plane light injection and collimation zone (32) in a form of parabola, where light produced by a light source (38) e.g. LED, is injected into the light guide. Two branches (48a, 48b) are connected together by a crown (40). The two branches define the contour of the injection and collimation zone, and are prolonged by a plane light extraction zone (36) that extracts light propagated inside the light guide. The light extraction zone is provided with a rectangular section and light extractors (54).

Illumination system for information display device i.e. LCD, in wrist-watch, has light guide comprising zone in which light is injected, where layer of non-electrically conductive light absorbing layer is coated in light injection zone

The system (1) has a light guide (2) comprising a small zone (4). A light source (14) i.e. LED, generates light that is injected into the zone of the light guide. The light guide has slots for an electrical connector (10). The electrical connector is utilized for electrical connection between an information display device (16) and an electronic control circuit i.e. printed circuit board (PCB) (44), of the information display device. A layer of non-electrically conductive light absorbing layer is coated in the light injection zone of the light guide.

Lighting system for transmissive type information display device used in wrist watch, has light guide in loop form that closes guide to allow light which is not extracted from guide to continue its path and to return to starting point

The system has a light guide (1) comprising an injection zone (2) in which light produced by a light source (4) e.g. LED, is injected. The zone is extended by an extraction zone (8) of light propagating inside the guide for lighting a display device. The guide is presented in the form of a loop that closes the guide at the injection zone for allowing the light from the source, which is not extracted from the guide at the extraction zone, to continue its path inside the guide and to return to a starting point at the injection zone. The display device is arranged inside the loop.

LCD device i.e. segment display device, for use in wrist watch, for displaying figural patterns, has prisms distributed in zones of light guide such that red and blue rays issued from upper face of light guide are concentrated on electrodes

The device (12) has a light guide (54) in form of a plate comprising a set of prisms (64, 66) for deflecting red rays (Rr) and blue rays (Rb) toward a display face (28). A series (S1) of prisms is oriented toward a colored LED (50) for deflecting the red rays emitted by the LED, and another series (S2) of prisms is oriented toward another colored LED (52) for deflecting the blue rays emitted by the LED. The prisms are distributed in zones of the light guide located facing electrodes (40) such that the rays issued from an upper face of the light guide are concentrated on the electrodes. An independent claim is also included for a timepiece, comprising an LCD device.

Optics and table lamp.

Eine erfindungsgemässe Optik (1) für eine Tischleuchte (2) ist im Wesentlichen plattentförmig mit einer Vorderseite (12), einer Rückseite (13), die Vorderseite (12) und die Rückseite (13) miteinander verbindenden Seitenkanten und einer Auslenkstruktur (15) ausgebildet. Die Auslenkstruktur (15) ist dazu ausgestaltet, durch eine der Seitenkanten eingestrahltes Licht umzuleiten, sodass es durch die Vorderseite (12) abgestrahlt wird. Die Auslenkstruktur (15) ist ferner so ausgebildet, dass das durch die Vorderseite (12) abgestrahlte Licht eine Hauptabstrahlrichtung (41) aufweist, die einen Abstrahlwinkel (17) zur Vorderseite (12) beschreibt, der in einem Bereich von etwa 10° bis etwa 70°, vorzugsweise in einem Bereich von etwa 20° bis etwa 60° und insbesondere in einem Bereich von etwa 30° bis etwa 50° liegt oder der etwa 45° beträgt. Die Erfindung betrifft auch eine Tischleuchte mit einer erfindungsgemässen Optik (1).

Leuchte zum Aufstellen auf eine Oberfläche.

Eine erfindungsgemässe Leuchte (1) zum Aufstellen auf eine im wesentlichen ebene Oberfläche, wie beispielsweise eine Schreibtischplatte, umfasst einen Fussteil zum Aufstellen der Leuchte (1) auf der Oberfläche und einen Leuchtteil, der sich vom Fussteil nach oben erstreckt, wenn der Fussteil auf der Oberfläche aufgestellt ist. Der Leuchtteil umfasst ein Strahlerleuchtmittel (51) und eine Strahleroptik (52). Die Strahleroptik (52) des Leuchtteils ist dazu ausgebildet, aus vom Strahlerleuchtmittel (51) erzeugten Licht einen Strom von sichtbarem Licht nach oben, beispielsweise an eine Raumdecke, zu formen, wenn der Fussteil auf der Oberfläche aufgestellt ist. Der Leuchtteil umfasst ein Auslenkleuchtmittel (61) und eine Auslenkoptik (62). Die Auslenkoptik (62) des Leuchtteils ist im Wesentlichen plattenförmig mit einer Vorderseite, einer Rückseite, die Vorderseite (624) und die Rückseite (623) miteinander verbindenden Seitenkanten (625) und einer Auslenkstruktur ausgebildet. Die Vorderseite ...

LED module for vehicle and holder diodes

The light guide plate and surface light source device

Illumination device in which source light injection is non-parallel to device's optical axis

Liquid crystal display device

Illumination via flexible thin films

Surface light source device and liquid crystal display device

GLAZING ILLUMINATED WITH INTERMEDIATE LAMINATION PRINTED

LIGHTING DEVICE WITH A SCREEN EDGE LIGHT (S)

Un dispositif d'éclairage (D) comprend un écran (EC), comportant des faces avant (FV) et arrière et délimité par des bords (B1-B4) comprenant des extrémités opposées, et au moins une source de lumière générant des photons. L'un au moins des bords (B1-B3) comprend sur la face arrière des premières structures tridimensionnelles (ST1) propres à réfléchir totalement des photons, issus de l'une de ses extrémités ou d'une partie centrale, vers la face avant (FV) afin qu'ils sortent par ce bord (B1 -B3).

ILLUMINATION DEVICE AND/OR SIGNALING TWO-COLOR, IN PARTICULAR FOR MOTOR VEHICLE

LIGHT GUIDE APPARATUS FOR LIGHTING AND/OR SIGNALING OF MOTOR VEHICLE

OPTICAL GUIDE WITH CONES OF LIGHT RE

Lighting or signaling device for production of luminous flux to e.g. indicate of motor vehicle, has guiding layer that is provided with reflection unit to direct rays of collimated beam toward guiding layer

La présente invention concerne un dispositif d'éclairage et/ ou de signalisation pour véhicule automobile comportant une source lumineuse et une nappe de guidage (1) présentant une surface d'entrée de rayons lumineux, une tranche de sortie (2) et configurée pour propager les rayons lumineux vers la tranche de sortie, caractérisé en ce que: - il comporte un collimateur (5) doté d'une surface d'entrée des rayons émis par la source et d'une surface de sortie d'un faisceau lumineux collimaté, le collimateur étant positionné relativement à la nappe de sorte à ce que l'axe du faisceau collimaté soit orienté suivant l'épaisseur (7) de la nappe, - la nappe comprend des moyens de réflexion configurés pour diriger les rayons du faisceau collimaté vers la tranche de sortie.

GLAZING FOR A STEERABLE LIGHT BEAM AND/OR MORE OR LESS CONCENTRATED.

L'invention concerne un vitrage (39) en verre feuilleté comprenant au moins deux feuilles de verre (41, 43) séparées par au moins un intercalaire de feuilletage (45a, 45b), une des feuilles de verre (43) portant des moyens de production ou d'extraction de rayons lumineux formant au moins une source lumineuse (47) remarquable en ce qu'il comprend en outre au moins un dispositif réfléchissant disposé en regard d'au moins une source lumineuse (47) et configuré pour réfléchir les rayons lumineux de sorte à former un faisceau lumineux (37) et en ce qu'au moins un dispositif réfléchissant est associé à des moyens de réglage de la direction et/ou de la concentration du faisceau lumineux (37).

Optical coupling device for signaling and/or lighting device in motor vehicle, has light collector to collect light from light source, and distribution unit formed by elliptical arcs to reflect light rays on inlet surface of light guide

Dispositif de couplage optique entre au moins une source de lumière (S) et une face d'entrée (1) d'un guide de lumière (A) pour une fonction de signalisation et/ou d'éclairage, en particulier pour véhicule automobile, comprenant un collecteur de lumière (3) pour recueillir la lumière de la source et envoyer sur la face d'entrée un flux lumineux suffisant pour assurer la fonction de signalisation et/ou d'éclairage.

MULTIMODE COUPLER LIGHT SOURCES FOR OPTICAL GUIDE

L'invention a trait à un coupleur de lumière (106) pour un guide optique, ledit coupleur comprenant plusieurs faces d'entrée (108) disposées latéralement à un axe optique (107) du coupleur; une portion de sortie (1064) centrée sur l'axe optique (107) ; au moins une première face de réflexion (110) des rayons se propageant dans le coupleur depuis au moins une des faces d'entrée (108) ; et au moins une deuxième face de réflexion (112), vers la portion de sortie (1064), des rayons se propageant dans le coupleur depuis la ou les premières faces de réflexion (110). La ou chacune des premières faces de réflexion (110) présente un profil longitudinal courbe convexe par rapport aux rayons y subissant des réflexions.

ILLUMINATION PANEL AND DISPLAY DEVICE USING THE SAME

BACKLIGHT UNIT AND LIQUID CRYSTAL DISPLAY DEVICE

도광판 및 이를 포함하는 표시 장치

... 본 발명에 따른 도광판은 입광면, 상기 입광면에 대향하는 대광면, 상기 입광면과 상기 대광면을 연결하는 연결면들, 상기 입광면, 상기 대광면, 및 상기 연결면들에 연결된 상면, 및 상기 상면에 대향하는 하면을 포함한다. 상기 입광면은 광원으로부터의 광을 수신하고, 상기 대광면은 상기 광을 반사하며, 상기 상면은 상기 광을 표시 패널 방향으로 출사한다. 각 연결면은 상기 호의 중심과 상기 입광면의 일단을 잇는 직선과 평행한 두 개 이상의 흡수면들, 및 인접한 두 개의 상기 흡수면들 사이에 제공되며 상기 광을 반사하는 적어도 하나의 반사면을 포함한다.

다중 광학계를 갖는 광원모듈

... 본 발명은 복수의 광학계를 이용하여 고연색성의 광원을 제공하는 다중 광학계를 갖는 광원모듈을 제공하는 것을 목적으로 한다. 이를 위해 본 발명은 기판; 상기 기판 상에 설치된 적어도 하나 이상의 LED 칩; 상기 LED 칩 상에 설치되고, 상기 LED 칩에서 발광되는 빛을 파장 변환하는 형광체; 상기 LED 칩의 주변에 설치한 프레임; 상기 LED 칩이 밀폐되도록 프레임과 결합한 투광부; 및 상기 투광부의 상면 및 하면 중 적어도 하나에 설치되어 상기 LED 칩에서 발광되는 빛의 발산각을 감소시켜 출력되도록 하는 광학계를 포함한다. 따라서 본 발명은 광원에서 발광된 빛이 복수의 광학계를 이용하여 광섬유로의 입사량이 증가되도록 개선하여 고연색성의 광원을 제공할 수 있는 장점이 있다.

Forming input surfaces of two LED light guides for increased light extraction efficiency

ILLUMINATOR FOR LCD ADOPTING SOLID-STATE LIGHT SOURCES FOR PROVIDING A BACK LIGHTING DOMAIN OF A DISPLAY

PURPOSE: An illuminator for LCD adopting solid-state light sources for providing a back lighting domain of a display is provided to omit demanding to a light guide plate or other flat type panel by removing a disorder. CONSTITUTION: An illuminator for LCD adopting solid-state light sources for providing a back lighting domain of a display comprises the followings: a solid waveguide including opposite side TIR surfaces; one or more optical incident surface for connecting a light from a solid-state light source(16); one or more mixing section; one or more light radiation surface; and a pattern of a light reorientation structure located between TIR surfaces. © KIPO 2009 ...

LIGHT GUIDE FOR A LIGHTING DEVICE

A lighting device comprises a side-light light guide (12) located in a support (13). To facilitate the location of the light guide (12) in the support (13) and ensure its retention in a predetermined orientation, at least one location feature (11) is formed on/in the light guide for engagement by the support. Advantageously, the/each location feature (11) has no substantial effect on the light output of the light guide through its light-emitting region (18). © KIPO & WIPO 2009 ...

BACKLIGHT DEVICE AND LIQUID CRYSTAL DISPLAY APPARATUS

LIGHT-EMITTING DEVICE WITH BRIGHTNESS ENHANCING LAYER

A brightness enhancing means (5), comprising a collimating means (6) having a receiving area (61), an output area (62) being larger than said receiving area (61), and sidewalls (63) at least partially extending between said receiving and output areas, is provided. At least a portion of the sidewalls (63) of said collimating means (6) comprises a first filter being arranged to reflect light of a first light property, which light is received via said receiving area (61) of said first collimating means (6), towards said output area (62) of said first collimating means (6), wherein said first filter is a dichroic filter or a polarization filter. © KIPO & WIPO 2008 ...

GUIDE OF LIGHT FOR ILLUMINATION OF A VIEWFINDER OR KEYBOARD

dispositivo de iluminação compreendendo um guia de luz baseado em película

Backlight module and light source module used therein

A backlight module includes a light-guiding module and a light source module positioned on the middle of the light-guiding module. The light-guiding module includes a back cover, a reflector on the inner surface of the back cover, a light-guiding plate (LGP) on the reflector, several optical correcting elements positioned on the LGP and a frame. The light source module includes a main body and a light source in the main body. The back cover defines a light input area. The main body includes a bottom board and two reflection portions opposite to the bottom board. The light source is fixed on the bottom board. The two reflection portions are combined to form a fan-shaped structure to cover the light source. The main body defines an opening portion opposite to the light source and between the two reflection portions. The light source module further includes a lens positioned in the opening portion. The light output from the light source and reflected by the two reflection portions comes to ...

Display device and backlight for display device

Illumination system

HEADLAMP BULB TYPE LIGHT PIPE

The present invention provides an automotive headlamp assembly having a light pipe. The present invention provides use of at least one incandescent light bulb to illuminate the light pipe. Power consumption is reduced from approximately 35 watts to 10 watts. The present assembly consists of a light pipe, at least one light source positioned at either end of the light pipe, the light source being an incandescent light bulb, at least one reflector and an elongated reflector positioned adjacent the light pipe. The reflector is positioned adjacent the light source to capture light from the light bulb, concentrate the light into a beam and reflect the light into the light pipe. The reflector aims light directly down the light pipe without the use of cable or LED mounted to the light pipe. The reflector prevents lost light and creates a more efficient headlamp assembly. The light pipe is a generally cylindrical elongated member having a plurality of attachment members. Light pipe and attachment ...

LIGHT SOURCE

The invention relates to a light source comprising a linear arrangement of a plurality of sub-groups of at least one unhoused LED chip (14). Said sub-groups are arranged along a line at defined, preferably regular distances from each other. The LED chips are applied to a carrier (13) for electrically contacting the same. According to the invention, a (single) body (11) of optically transparent material is provided, said body at least partially surrounding each LED chip such that light emitted from the LED chip is diffused through the body, the at least one carrier being mechanically fixed to the body.

LIGHT SOURCE

The invention relates to a light source comprising a linear arrangement of a plurality of sub-groups of at least one unhoused LED chip (14). Said sub-groups are arranged along a line at defined, preferably regular distances from each other. The LED chips are applied to a carrier (13) for electrically contacting the same. According to the invention, a (single) body (11) of optically transparent material is provided, said body at least partially surrounding each LED chip such that light emitted from the LED chip is diffused through the body, the at least one carrier being mechanically fixed to the body.

SYSTEMS AND METHODS FOR SUPPLYING A DISTRIBUTED LIGHT SOURCE COMPRISING OPTICAL FIBER BRAGG GRATINGS

Embodiments of the present invention are directed methods, apparatuses and system for establishing a linear radiant electromagnetic energy field. In one embodiment of the invention, a system for providing a linear field of electromagnetic energy includes a laser, at least one length of single mode or multimode optical fiber (302) including a core having a stitched diffraction grating of predetermined pitch for diffracting electromagnetic energy in a predetermined direction, a longitudinal optical element (304) having a convex surface and a length corresponding to the length of optical fiber, wherein the optical element is sized such that the convex surface is positioned at a predetermined distance from the optical fiber and in a direction to receive electromagnetic energy diffracted by the grating of the optical fiber thereby establishing a linear lighting field and a lenticular array.

BACKLIGHT DEVICE AND LIQUID CRYSTAL DISPLAY APPARATUS

A backlight device (100) is provided with first light sources (20a, 20b) and second light sources (10). The first light sources (20a, 20b) emit first light beams (22a, 22b) that are red laser beams. The second light sources (10) emit a second light beam (13) that is blue-green color light having a complementary-color relationship with the laser beam. The second light sources (10) comprise light-emitting diodes that emit blue light, and phosphors that absorb the blue light and emit green light.

LIGHT OPTICAL SYSTEM, ESPECIALLY FOR INFORMATION, ADVERTISING ILLUMINATION OR DECORATIVE PURPOSES

L'invention concerne un système optique lumineux constitué d'au moins une source de lumière et d'au moins un conducteur de lumière et d'au moins un élément optique comprenant: i) un élément d'entrée pour la compression et/ou rectification de la lumière dirigée vers le conducteur de lumière, ii) un injecteur pour introduire la lumière en provenance de la source de lumière (5) dans le conducteur de lumière (2) à travers la surface principale (P) du conducteur de lumière (2) formé d'au moins un injecteur (1) défini par la zone d'entrée (1a) qui dépasse de la surface principale (P) du conducteur de lumière (2), les lignes de la surface de la zone d'entrée (1a) de l'injecteur (1) formant un angle ('alpha') supérieur à 0° et inférieur ou égal à 90° avec la surface principale (P) du conducteur de lumière (2), la zone secondaire (1b) formant un angle ('beta') supérieur à 0° et inférieur à 180° avec la zone d'entrée (1a) et une zone de base (1c) étant identique à une partie de la surface principale ...

FLAT OPTICAL FIBER LIGHT EMITTERS

Light emitters are made of one or more cladded flat optical fibers having opposite flat sides and disruptions along at least a portion of the length of the fibers to cause light entering at least one end to be emitted from at least one side. The ends of the flat optical fibers may have substantially the same thickness as a light source and a width substantially equal to or substantially greater than the width of the light source for ease of optically coupling one or more such light sources to the flat optical fiber ends.

Side edge planar lighting unit

A side edge planar lighting unit includes a light emitting diode, a light guide plate, and a transparent flexible resin between the light emitting diode and the light guide plate. The light emitting diode and the light guide plate are brought into close contact by the transparent flexible resin. The light guide plate includes a light exit face on a first main surface, a reflective face on a side opposite the light exit face, and a recessed portion in a first side edge. The recessed portion includes the light entrance face on a bottom surface, a pair of light entrance side faces facing each other across the light entrance face, and an anti-slip portion made of an uneven structure on at least one of the light entrance side faces. The transparent flexible resin is fitted in the recessed portion of the light guide plate.

Light guide plate and backlight module with the same

A light guide plate includes an incident edge and a plurality of V-shaped grooves. The incident edge includes a tilted surface, a vertical surface, a top surface and a bottom surface. The top surface is configured in parallel with the bottom surface. The top surface joins with an end of the tilted surface. The bottom surface joins with the other end of the tilted surface. The plurality of V-shaped grooves extend in a predetermined direction and are configured on the tilted surface. When the light from a light source strikes on a tilted surface, on which V-shaped grooves make the light diffused, and the diffused light is in conformity on the incident edge, having no hot spot there.

Backlight source comprising light guide plate and light bar, and display device comprising the backlight source

The present disclosure discloses a backlight source and a display device. The backlight source can include: a light guide plate and a light bar. The light guide plate includes a flat panel structure and a strip structure having an inclined surface, the strip structure being disposed at an edge of one side of the flat panel structure, the inclined surface being connected to the edge of the flat panel structure and inclining toward the flat panel structure, and the angle between the inclined surface and a side of the strip structure away from the flat panel structure and parallel to the flat panel structure being an obtuse angle; the light bar and the strip structure are disposed on the same side of the flat panel structure, a light exiting surface of the light bar facing a side of the strip structure opposite to the inclined surface in a direction parallel to the flat panel structure. The backlight source of the present disclosure is used in a display device including a display panel.

Slim waveguide coupling apparatus and method

In various embodiments, an illumination structure includes a discrete light source disposed proximate a bottom surface of a waveguide and below a depression in a top surface thereof. A top mirror may be disposed above the discrete light source to convert modes of light emitted from the discrete light source into trapped modes, thereby increasing the coupling efficiency of the illumination structure.

Linear side emitter, backlight system and liquid crystal display using the same

A linear side emitter, a backlight system and a liquid crystal display using the same are provided. The linear side emitter includes a plurality of LED chips, a bottom portion, a reflecting surface, and side surfaces. The LED chips arranged in a line on the bottom portion. The reflecting surface is disposed above the bottom portion and reflects light exiting the LED chips. The side surfaces are formed at both sides of the LED chip array line and transmit light is reflected by the reflecting surface and light reflected by the reflecting surface and then reflected by the bottom portion. The side surfaces each have at least one bend formed therein.

Luminaire device

An optical device for collecting light and selectively outputting or concentrating the light. A layer has an optical index of referaction n1, and top, bottom and side surfaces defining an angel of inclination φ. A back surface spans the top, bottom and side surface. A first layer is coupled to the bottom surface of the layer and has an index of refraction n2. The first layer index n2 causes light input through the back surface of the layer to be preferentially output into the first layer. A second layer is coupled to the bottom of the first layer and selectively causes output of light into ambient. Additional layers, such as alight polarization layer, a polarization converting layer and a post LCD diffuser layer can be used to make preferential use of polarized light of diffuse light having passed through the LCD layer to enhance viewing of the output light.

Flat and transparent front-lighting system using microprisms

A system especially suitable for illuminating the front side of an object, as viewed by an observer is disclosed herein. This system includes a light pipe assembly having opposing forward and rearward faces; an arrangement for directing light into the light pipe assembly in a predetermined way; and an arrangement of optical components forming part of the light pipe assembly. This latter assembly is provide for reflecting substantially all of the light directed into the light pipe in a forward direction through the forward face of the light pipe. The light pipe assembly including the arrangement of optical components is substantially transparent to visible light or electro-magnetic wave of a particular wavelength in the direction across the opposing forward and rearward faces of the assembly such that the light pipe assembly can be positioned between the object being illuminated and the observer or the detector without in any significant way disrupting the observer's or detector's view of ...

SURFACE LIGHT SOURCE DEVICE

In a light guide plate 63, a light introducing unit 65 having a thickness larger than that of a light guide plate body 64 is provided at an end of the light guide plate body 64. A point source of light 62 is placed so as to face an end face of the light introducing unit 65 (a light incident end face 66) . The light introducing unit 65 has a protruding portion in a shape of a half of a frustum of a cone protruding from a surface on the light guide plate 63 to have a large thickness, and the protruding portion has an outer perimeter surface forming an inclined surface 67. On the inclined surface 67, V-groove structures 68a are arranged along the outer perimeter surface of the protruding portion to configure a directivity conversion pattern 68. Furthermore, on an inner perimeter portion of the directivity conversion pattern 68, an auxiliary inclined surface 71 having an angle of inclination smaller than the angle of inclination of the inclined surface 67 is formed along an inner perimeter ...

Mobile terminal and method for controlling the same

A mobile terminal according to the present disclosure may include a body, a light-emitting device provided within the body, a display unit disposed on a front surface of the body, and a corner region of which is formed in a curved surface, and a light guide plate disposed at a lower side of the display unit to guide light emitted from the light-emitting device to the display unit, and formed with a chamfer surface at a corner region facing the curved surface, wherein the light-emitting device is disposed adjacent to the chamfer surface to emit light toward the chamfer surface.

Lighting device

A lighting device includes: a light guide plate having a light incident part in an end face and a light radiation part in a flat plate surface; a light source part opposed to the light incident part; a light shield member with which an area near the light incident part on the flat plate surface of the light guide plate is covered; and a switch part including a switch main body, a switch knob and a pressing member connected to the switch knob to press the switch main body by pressing down the switch knob. An end part of the switch knob opposed to a center of the flat plate surface of the light guide plate is located on the light shield member, and the end face of the light guide plate is located between a first virtual line passing the end part of the switch knob and perpendicular to the flat plate surface of the light guide plate and a second virtual line passing the center of the switch main body and perpendicular to the flat plate surface of the light guide plate.

Display device and electronic apparatus equipped with the same

A display device and an electronic apparatus equipped with such a display device are provided. The display device includes a liquid crystal display that displays an image; normal-illumination LEDs that emit illumination light and a partial-illumination LED that emits illumination light; a light guide unit having a first incidence surface and a second incidence surface, and configured to optically guide the illumination light received by the first incidence surface to the entire surface of the liquid crystal display and to optically guide the illumination light received by the second incidence surface to a predetermined region having the same aspect ratio as the liquid crystal display; and a switch button used for switching the size of the image displayed on the liquid crystal display to the size corresponding to the entire surface or the size corresponding to the predetermined region.

Planar light source and light guide for use therein

A planar light guide (4) having a light entrance end face (41) receiving light from a spot-like primary light source and a light exit face (43) outputting the entered light, wherein a plurality of lens arrays (42) are formed, at least a part of the light entrance end face, to extend from the light exit face toward the opposite face substantially in parallel with each other. The lens array (42) has an asymmetric cross-sectional shape defined by a combination of at least two different curves. When the light guide (4) is combined with a primary light source disposed oppositely to the light entrance end face (41) and a light deflecting element disposed oppositely to the-light exit face (43), a high quality planar light source having a high uniformity and no variation in luminance is provided even when a relative small number of spot-like light sources are used as the primary light source.

Display Backlight With Closely Spaced Light-Emitting Diode Packages

An electronic device may be provided with a display having backlight structures that include a light guide plate formed from a clear polymer film. The polymer film may have an edge into which light is emitted from an adjacent array of light-emitting diodes. The light emitting diodes may each include a semiconductor device that emits light. The semiconductor device in each diode may be mounted on lead frame structures and wirebonded to the lead frame structures with first and second wire bonds. To improve backlight homogeneity and thereby reduce the mixing distance for light in the light guide plate, the diodes may be spaced closely together using diode packages having end faces that are free of lead frame structures. Exposed lead frame structures for soldering the light-emitting diodes to a substrate may be formed under the light-emitting diodes and on rear surfaces of the light-emitting diodes.

SPREAD ILLUMINATING APPARATUS

A spread illuminating apparatus includes a plurality of point light sources; a printed circuit board on which the plurality of point light sources is each mounted; and a light guide plate with a light input surface facing the point light source and a light output portion that exits plane light emitted from the point light source and introduced through the light input surface, wherein the light guide plate includes an inclination portion between the light input surface and the light output portion, the inclination portion having a thickness gradually decreasing toward the light output portion side, an inclined surface of the inclination portion includes a pedestal for disposing the printed circuit board in an area except the front of the point light source, and a light-blocking member is disposed between the neighboring pedestals.

Light guide plate and backlight unit having the same

The present invention provides a light guide plate capable of improving brightness uniformity and a backlight unit having the same. The present invention also provides a liquid crystal display having such light guide plate and backlight unit. The light guide plate according to the present invention has a light incidence and a light emitting surface, wherein the light incidence surface is not perpendicular to the light emitting surface. The present invention utilizes the light guide plate capable of improving brightness uniformity across the light emitting surface so that the backlight unit and liquid crystal display may have considerably improved brightness uniformity.

Direct type backlight module and liquid crystal display using same

A direct type backlight module (1) includes at least one light source (11) for emitting light beams, and a light guide plate (12) having a first surface (13), an opposite second surface (14), and at least one transflective unit (16) arranged on the first surface adjacent to the corresponding at least one light source. The at least one transflective unit is configured for reflecting a first part of the incident light beams, and allowing a second part of the incident light beams to pass therethrough. The present backlight module has a high level of brightness uniformity.

LIGHTING DEVICE FOR VEHICLES

A lighting device for vehicles is provided, having a flat light guide containing two flat sides facing each other, one light input coupling surface for the entry of light at a light input coupling side of the flat light guide, one light output coupling surface for the output of light input at the light input coupling surface with the light output coupling surface arranged at one light output coupling side of the flat light guide. A specified light distribution (L) is thereby generated. The flat light guide further includes one narrow lateral surface connecting the flat sides with each other and extending from one lateral border of the light output coupling side, one collection surface adjacent to the light input coupling surface shaped in such a manner that a partial light beam of the entering light striking the collection surface is reflected in total towards the light output coupling surface without the partial light beam striking the narrow lateral surface. The light output coupling ...

ROD-SHAPED LIGHT GUIDE AND VEHICLE LAMP

A light guide is configured to allow at least a portion of light incident on a light-incident surface to be emitted through a peripheral surface. The light guide includes a light guide portion extending in a lengthwise direction of the light guide and formed of a first material and a luminous portion extending in the lengthwise direction of the light guide along the light guide portion and formed of a second material. The second material has a haze value greater than a haze value of the first material.

Optical element and display device

An optical element includes a plurality of mirrors; a first transmittance member interposed between adjacent two mirrors; and a second transmittance member provided on one of an incidence and an exit side of the image and the external image with respect to the first transmittance member. A surface of one transmittance member opposite to the other transmittance member among the first and the second transmittance member is an incidence surface on which the image and the external image are incident via a light guiding body. A surface of the other transmittance member is an exit surface from which the image and the external image are exited. Each of the plurality of mirrors is disposed so as to be inclined with respect to the incidence surface. The plurality of mirrors include a first and a second mirror whose width is narrower than a width of the first mirror.

ILLUMINATION DEVICE AND INPUT UNIT WITH ILLUMINATION DEVICE

A recess portion is formed in a substrate to accommodate a light emitting element so as to be sealed with a sealant. A light guide layer formed of a thin transparent resin film is fixed onto the substrate via an adhesive layer to realize an illuminating device with a thin structure. The light emitted from the light emitting element is irradiated into the light guide layer via the sealant and the adhesive layer. The light fully reflecting on the boundary surfaces between the light guide layer and the adhesive layer, and between the light guide layer and the air layer passes inside the light guide layer. Then the light which has not fully reflected leaks outside from the surface of the transparent resin film which forms the light guide layer. This makes it possible to illuminate the surface of the illumination device 1A entirely with brightness.

LIGHT GUIDE MODULE

A light guide module includes a light guide plate and a light source. The light guide plate has an active area and a light-mixed area. The active area has a centroid. The light source faces the light-mixed area, and the optical axis of the light source is not through the centroid of the active area, such that a perpendicular distance is formed between the optical axis of the light source and the centroid of the active area.

Light Guiding Decorative Composite Sheet and Components Made Thereof

A light-guiding decorative lamination sheet includes a transparent substrate with concave and convex structures on the surface. An edge is thicker than center of the substrate. The cross section of the edge is in horn shape. The substrate is coated with a printed layer and a hard coat on the concave and convex surface with an adhesion layer on the other side of the substrate. The hard coat side faces to one surface of a pair of match molds and followed by a resin injection process unto the adhesion layer. The other surface of the mold may optionally have micro-structures that can be transferred to the surface of injected resin. An LED placed beside the horn shape edge forms the corresponding light-guiding composite sheet. A heat resistant layer, with softening temperature at least 10° C. higher than the injected molten resin, may be placed underneath the adhesion layer.

DISPLAY APPARATUS AND BACK LIGHT UNIT TO BE USED THEREFOR

A back light unit includes a light source unit combined with an optical waveguide having translucency to guide a light of light source in a direction of liquid crystal panel, and a chassis for holding or supporting the light source unit. The optical waveguide is formed in plate-like shape, a face opposing to the back face of liquid crystal panel is used as a light emitting surface, a face opposing to the chassis is used as a reflecting face for reflecting a light, one of a plurality of side faces adjacent to light emitting surface and reflecting face is used as a light incidence surface where a light from the light source is injected. The light source unit is arranged in multiple in a horizontal direction or a vertical direction of the liquid crystal panel, in the back face side of the liquid crystal panel.

LIGHTING DEVICE AND DISPLAY APPARATUS

A lighting device includes multiple light sources and a light guide plate that guides light from the multiple light sources. The light guide plate has a light incident face where light from the light sources is incident and an incident-opposite face positioned opposite to the light incident face, and also includes a first light guide portion where a distance L from the light incident face to the incident-opposite face is relatively long and a second light guide portion where the distance is relatively short. The multiple light sources include a first light source that supplies light to the first light guide portion, and a second light source that supplies light to the second light guide portion. The lighting device is configured such that a light emission quantity per unit time at the second light source is smaller than a light emission quantity per unit time at the first light source.

PLANAR ILLUMINATION APPARATUS

A planar illumination apparatus according to an embodiment includes a light source and a light guide plate. The light source includes a light emitting diode and a wavelength conversion material that is excited by light emitted from the light emitting diode so as to emit light, and emits white light. The light guide plate includes an incident end surface on which the light source is disposed, and an emission surface that emits light incident from the incident end surface. The light guide plate is provided with a light scattering unit on at least one of the emission surface and a rear surface opposed to the emission surface. The light scattering unit mainly scatters light emitted from the light emitting diode than light emitted from the wavelength conversion material.

APPARATUS FOR TAKING CLOSE-UP PICTURE USING MOBILE TERMINAL EQUIPPED WITH CAMERA, AND EXTERIOR OPTICAL MODULE FOR TAKING CLOSE-UP PICTURE

Provided is an apparatus for taking close-up pictures using a mobile terminal equipped with a camera and an exterior optical module for taking close-up pictures. The exterior optical module according to the present invention is characterized in that it is possible to take close-up pictures of even subjects within the shortest photographing distance of a camera part embedded in a typical mobile terminal, and the light source embedded in the mobile terminal is used without using a separate external light source. By providing an optical zoom through a separate exterior lens, it is possible to apply the present invention in cases where a magnified image is required, such as for the inspection of the skin tissues, in a portable microscope function, or the like. The mobile terminal becomes an apparatus for taking close-up pictures through an exterior optical module mounted thereon.

LIGHT GUIDE PLATE, BACKLIGHT MODULE, AND DISPLAY DEVICE

The present invention provides a light guide plate, a backlight module, and a display device. The light guide plate contains a platform of uniform thickness along an edge of the light guide plate for installing a flexible printed circuit (FPC). The platform contains a plurality of through openings for installing light emitting diodes (LEDs). The backlight module contains LEDs, a FPC, and the light guide plate. The FPC is configured on the platform. The LEDs are configured inside the openings. The display device contains the backlight module. The present invention enhances the reliable connection between the FPC and light guide plate, reduces the probability of coupling failure, and lower the manufacturing difficulty and cost.

Backlight module

A backlight module including a light guide plate is disclosed. The light guide plate has a light emitting plane, a bottom plane opposite to the light emitting plane and a light incident plane connecting the light emitting plane and the bottom plane, a plurality of arc protrusions disposed on the first light incident plane; and a transparent layer disposed upon each of the arc-protrusions. In the backlight module, an LED bar is disposed near to the light incident plane of the light guide plate, and the LED bar has a plurality of LED light sources corresponding to the arc-protrusions of the light guide plate, respectively.

ILLUMINATION DEVICE, AND DISPLAY DEVICE

The present invention aims at providing an illumination device and a display device that can suppress uneven brightness while improving light use efficiency and brightness. The illumination device includes a plurality of light sources arranged next to each other, a light guide member that guides light from the light sources, and protrusions that protrude towards the respective light sources from an end face of the light guide member. The protrusions each have side faces formed such that light emitted so as to spread in the arrangement direction of the light sources exits the light guide member and then re-enters from the end face thereof.

Illumination apparatus

An illumination apparatus is disclosed and includes a light-guiding module and a light source module. The light-guiding module has a light-in surface, which is annular surface inside the light-guiding module. The light source module includes a plurality of light-emitting devices. Each light-emitting device is disposed toward the light-in surface and can emit light through the light-in surface into the light-guiding module. The light-guiding module can be a light-guiding plate with a through hole, a sidewall of which is treated as the light-in surface. The light source module can use an annular circuit board disposed in the through hole. The light-emitting devices are disposed on an outer annular surface of the annular circuit board toward the sidewall. Thereby, the invention can provide illumination of radially guiding light.

Solar energy concentrator

A solar concentrator assembly comprises a segmented wave-guide assembly, a reflective mirror assembly, and an optical target-providing unit. A segmented waveguide assembly comprises a plurality of wave-guide segments, each segment comprising a set of surfaces disposed so as to support TIR propagation of solar energy and a turn mirror affixed thereto and disposed to receive solar energy from a mirror of the reflective mirror assembly and reflect said solar energy into the wave-guide segment at angles compatible with TIR propagation. The reflective mirror assembly comprises a plurality of mirrors each being aligned to reflect the solar energy to a turn mirror affixed to each wave-guide segment. The optical target providing unit converts solar energy from the light propagated in the wave-guide assembly to a different form of energy.

Luminous keyboard

A luminous keyboard comprises a housing, a keyboard and a light emitting portion. The keyboard and light emitting portion are held in the housing. The light emitting portion includes at least one housing trough and a lighting element held in the housing trough. The housing trough has at least one first recess portion and at least one second recess portion on the periphery. The first recess portion and second recess portion have respectively an inner wall formed a first curved surface and a second curved surface. The lighting element generates light projected to the first and second recess portions, and the light piercing through the first and second curved surfaces is transmitted towards the concave directions of the first and second recess portions. Thus the light advancing direction in the light emitting portion can be effectively controlled.

Backlight unit

Disclosed herein is a backlight unit including a light guide plate including a light emitting portion to emit light, side surfaces defining corners, and a first light incidence portion and a second light incidence portion to receive light, at least two light emitting modules respectively disposed to face the first light incidence portion and the second light incidence portion, and an optical sheet disposed on the light guide plate, wherein the first light incidence portion is disposed one corner region of the light guide plate, and the second light incidence portion is disposed another corner region of the light guide plate, wherein the first light incidence portion is facing the second light incidence portion or disposed to both sides of one side surface of the light guide plate.

Collimating waveguide apparatus and method

A collimating waveguide, an optical backlight apparatus, and a method of producing a collimated beam of radiant electromagnetic energy are disclosed. A collimating waveguide comprises an input surface to receive radiant electromagnetic energy from a point source and an output surface to emit an output beam of substantially collimated radiant electromagnetic energy. A first collimating surface of the waveguide receives a beam of the radiant electromagnetic energy entering from the input surface traveling in a first direction and reflects the radiant electromagnetic energy into a substantially collimated beam of radiant electromagnetic energy traveling in a second direction, which is the reverse of the first direction. A second collimating surface of the waveguide receives the substantially collimated beam of radiant electromagnetic energy and to redirect the substantially collimated beam toward the output surface. An optical backlight apparatus comprises a reflective cavity to receive the collimating waveguide and a diffuser located over the output surface of the collimating waveguide.

Light converting optical structure and lighting device utilizing the same

Embodiments of the present invention include a light converting structure, a light accommodating structure, and a lighting device. The light converting structure includes a bottom conical recess to accommodate a light source, and a top conical recess to distribute the lights emitted from the light source. The light accommodating structure includes a through hole with a small opening and a large opening. A light source is accommodated in the through hole at the large opening, and the lights emitted from the light source output at the small opening. The lighting device utilizing the light converting structure and/or the light accommodating structure obtains a thinner configuration.

Backlight unit and liquid crystal display device

A backlight unit includes alight guide plate, an inner frame that surrounds an outer periphery of the light guide plate, and an outer frame that surrounds an outer periphery of the inner frame. An inner periphery of the inner frame is formed with an inner protrusion that projects toward the outer periphery of the light guide plate. The outer periphery of the inner frame is formed with an outer protrusion that projects toward an inner periphery of the outer frame. The inner protrusion and the outer protrusion are located on opposite sides of a wall part that is one side part of the inner frame, and arranged at a distance from each other in a longitudinal direction of the wall part of the inner frame. According to the backlight unit, relative positional displacement of members can be suppressed while ensuring the ease of assembling.

Light guide for illumination

It is presented a light guide ( 1 ) having a polygonal shape with a plurality of sides ( 5 ), each side ( 5 ) connected by two corners ( 5 ). At least one of the corners is an in-coupling corner ( 4 ) for in-coupling of light into the light guide ( 1 ). At least one of the sides ( 5 ) has is slanting and collimates light in-coupled from an adjacent light in-coupling corner ( 4 ). The slanting side ( 5 ) can also reflect light towards a planar light emitting surface ( 3 ) for out-coupling of light therethrough. The light in-coupled in a light in-coupling corner ( 4 ) is collimated as if the light guide ( 1 ) is an equilateral triangle ( 2 ) having three slanting sides.

Lamp device with color-changeable filter

A lamp device includes a supporting frame, a light emitting diode (LED) array source, a light filter, two end caps and two couples of electrodes. The LED array source is disposed on the supporting frame. The light filter is arc-shaped and combined with the supporting frame as a tubular structure, wherein the arc surface of the light filter is a light emitting surface of the LED array source. The light filter is used for absorbing a ray in a specific wavelength range of the emitting light of the LED array source. The two end caps are disposed at two ends of the tubular structure respectively. The two couples of electrodes are disposed at two ends of the tubular structure and mounted on the two end caps respectively for electrically connecting to the LED array source.

Lighting assembly with asymmetrical light ray angle distribution

A lighting assembly that efficiently collects and accurately directs light with a defined asymmetrical light ray angle distribution onto a nearby target surface. The light with the asymmetrical light ray angle distribution illuminates the target surface with a defined illumination profile. In theatrical and architectural lighting, the defined illumination profile is an even illumination profile on a nearly vertical surface. In street lighting, the defined illumination profile is an even illumination profile on a horizontal surface. The lighting assembly includes an LED and a solid reflector optic having a reflective surface shaped to reflect light from the LED in a way that produces the asymmetrical light ray angle distribution at least in part.

Mosaic light guide plate structure and backlight module

Disclosed are a mosaic light guide plate structure and a backlight module. The mosaic light guide plate structure comprises at least two light guide plate units. Each of the light guide plate units comprises a first tilt face and a second tilt face with cooperation of at least one light-emitting unit. The first tilt face is positioned at a side of the light guide plate unit. The second tilt face is oppositely positioned to the first tilt face at the other side. The at least one light-emitting unit is positioned under the first tilt face. The present invention assembles adjacent tilt faces to form the light guide plate and changes the direction of light with the tilt faces for solving issues of length limitation for the light guide plate. Accordingly, the mosaic light guide plate structure of the present invention can be suitable for large-scale LCDs and realize local dimming.

Light guide device and backlight module

The backlight module comprises a light guide device, pluralities of light sources and at least one optical film. The light guide device further contains body, first microstructures, second microstructures, flat portions and diffusive beads. The first microstructures are disposed on reflective surface. A first point and a second point are disposed at two ends of the first microstructure with a first width (P 1 ). Each flat portion has a gap (G) defined between two adjacent first microstructures. The second microstructure connects to the body by means of two edge portions. Two edge portions have a second width (P 2 ) defined on the incident surface; wherein a first depth (H 1 ) is defined to be the distance between the crossing point of two edge portions away from the incident surface. Pluralities of diffusive beads have weight M b . The body has weight M t . Then the equations of H 1 P 2 * P 1 G ≤ 0.288 and H 1 P 2 * P 1 G * M t M b ≤ 96.0 are satisfied.

Surface light source apparatus and display apparatus using same

A surface light source apparatus capable of keeping a high in-plane brightness uniformity and a high light utilization efficiency without increasing the size of a frame, and also to provide a display apparatus including the surface light source apparatus. The surface light source apparatus includes a point light source, and a light guide plate having a hole formed near first side surface that is one side surface thereof, the hole being formed at a position where the point light source is to be arranged. The first side surface of the light guide plate has, in a portion thereof near the hole, a prism having a saw-toothed shape in a cross-section thereof parallel to a front surface of the light guide plate.

Apparatus for the collection and transmission of electromagnetic radiation

A collector for propagating incident radiation is disclosed. The collector may comprise a light directing component coupled to a buffer component, a first propagation component coupled to the buffer component and configured to transmit the incident radiation into a collector region through one of a plurality of windows, and an optical transport assembly coupled to an end of the collector region and having a second propagation component. Each light directing component may be configured to redirect the incident radiation from a first direction to a second direction, and the collector region may include a plurality of regions exhibiting a refractive index value that gradually transitions from about 1.5 to about 2.0. The second propagation component may be further configured to retain the incident radiation.

Illumination apparatus

This invention relates to an illumination apparatus. The illumination apparatus comprises a light guide plate and a light source configured to emit light into the light guide plate through a first surface, and the light guide plate comprises a concentrator configured to direct incident light in the light guide plate so as to radiate in a direction substantially parallel to a preset plane. The preset plane is perpendicular to any one of the top surface and bottom surface of the light guide plate, and intersects the first surface and a second surface of the light guide plate or intersects the first surface and one of the side surfaces at an angle that is substantially larger than the critical angle of a total reflection. In this way, unwanted light loss in the light guide plate is reduced, and the distribution of the light intensity or luminance along the light guide plate is improved, i.e., a substantially uniform distribution of the light intensity can be achieved.

Light guide apparatus for a backlight module

A light guide apparatus for a backlight module is provided. The light guide apparatus comprises a light guide plate and an electrical component. The light guide plate is configured with a circuit thereon. The electrical component is attached to the light guide plate and electrically coupled to the circuit. The light guide apparatus integrates a light guide panel, a circuit and an electrical component together for obtaining simpler structure and lower cost.

Liquid crystal display device

Provided is a liquid crystal display device including a liquid crystal cell ( 3 ), a light source, and a light-guiding plate ( 1 ) that guides light from the light source to the liquid crystal cell ( 3 ), wherein a cutout ( 2 ) is formed on a sidewall of the light-guiding plate ( 1 ). The cutout ( 2 ) may have an inclined face inclining downward toward an outer side of the light-guiding plate ( 1 ). A reflecting member ( 5 ) may be inserted in the cutout ( 2 ). Further, a light-shielding member may be inserted in the cutout ( 2 ). In a region above the cutout of the light-guiding plate ( 1 ), an adhesion member ( 4 ) may be arranged on an upper face of the light-guiding plate ( 1 ) so that the light-guiding plate ( 1 ) and the liquid crystal cell ( 3 ) are adhered to each other.

Optical touch panel and light guide module thereof

An optical touch panel includes a panel and a light guide module. The light guide module is disposed on the panel, and the light guide module includes a printed circuit board, at least one light emitting element, and a light guide strip. The light emitting element is electrically disposed on the printed circuit board. The light guide strip is disposed on the printed circuit board, and wraps the light emitting element. Additionally, the light emitting element emits light rays, and the light rays penetrate the light guide strip and are emitted to the panel.

Flat-panel optical projection apparatus with reduced distortion

A light guide of the tapered-waveguide type includes an input slab for expanding a projected image between an input end and an output end; and a tapered output slab arranged to receive rays from the said output end of the input slab, and to emit them at a point on its face that corresponds to the angle at which the ray is received. The taper is calculated so that all rays injected into the input end undergo the same number of reflections before leaving the output face. The thickness of the input slab light guide is greater in the transverse direction away from the centre line, so that light travelling at the critical angle from the input face of the slab waveguide towards the output waveguide bounces the same number of times in the input slab, regardless of its fan-out angle, in order to further reduce image distortion.

Light bulb with adjustable light output

A light bulb includes a base, light guide, and light source. The base is configured to mechanically mount the light bulb and receive electrical power. The light guide includes light input regions, at least one of the light input regions associated with an optical modifying characteristic, the light guide configured to propagate light by total internal reflection. The light source is located adjacent the light input regions. The light source and light input regions are variably positionable relative to one another to vary location at which light is incident on the light input regions such that light emitted from the light source is selectively apportioned between the light input regions. A characteristic of the light output from the light bulb is modified based on the optical modifying characteristic of the at least one of the light input regions and the relative positioning of the light source and light input regions.

Led lighting device with light guide plate

A light guide plate includes a lateral side through which light enters and a front side through which light exits. A phosphor is coated on the lateral side. A light source includes a plurality of light emitting diodes (LEDs) having wavelengths of 230-520 nanometers (nm). The LEDs are mounted proximate to the lateral side and corresponding to, but separated from, the phosphor. A reflector includes a reflective surface and is mounted on a back side of the light guide plate with the reflective surface facing the light guide plate. A frame fixes the light guide plate, the light source, and the reflector. Colors of the phosphor and the light source are complementary. The phosphor absorbs light from the light source to transition into an excited state. The light guide plate outputs light from the light source and the phosphor through the front side.

Display Device

Disclosed is a display device. The display device includes a light source, a light guide part to receive a light emitted from the light source, a light conversion member between the light source and the light guide part, and a spacer between the light source and the light conversion member.

Light-coupling optical systems and methods employing light-diffusing optical fibert

Light-coupling systems and methods that employ light-diffusing optical fiber are disclosed. The systems include a light source and a light-diffusing optical fiber optically coupled thereto. The light-diffusing optical fiber has a core, a cladding and a length. At least a portion of the core comprises randomly arranged voids configured to provide substantially spatially continuous light emission from the core and out of the cladding along at least a portion of the length. A portion of the light-diffusing optical is embedded in an index-matching layer disposed adjacent a lower surface of a transparent sheet. Light emitted by the light-diffusing optical fiber is trapped within the transparent sheet and index-matching layer by total internal reflection and is scattered out of the upper surface of the transparent sheet by at least one scattering feature thereon.

Super slim front light module and electronic paper display

A super slim front light module, including: a point light source; a diffusion strip, having a plurality of diffusion points and having a side surface neighboring the point light source; a rectangular reflective cover, used for covering the diffusion strip; and a light guide plate, having a side surface neighboring the diffusion strip.

Lighting assembly

A lighting assembly includes a light guide having opposed major surfaces between which light propagates by total internal reflection and a light input edge. The light assembly also includes a light engine. The light engine has a heat conductive armature having a receptacle for a portion of the light guide that includes the light input edge and a light source retained by and thermally coupled to the armature. The armature functions as a heat sink for dissipating heat generated by the light source. The light guide is mechanically retained in the receptacle, and the light guide and the armature cooperate to align the light input edge with the light source for inputting light from the light source into the light guide through the light input edge.

Light guides and backlight systems incorporating light redirectors at varying densities

Light guides and backlight systems are disclosed that include one or more groups of geometric light redirectors whose arrangement and/or orientation across the surface of a light guide varies to improve light emission uniformity and to reduce visual artifacts.

Planar light source apparatus and display apparatus using same

A planar light source apparatus includes a point light source and a light guide plate shaped like a flat plate with a rectangular shape in a plan view. The light guide plate includes an output surface confronting an opening portion, a pair of second side surfaces opposed to each other, and a hole opening in a non-output surface and formed near one of the first side surfaces at a position where the point light source is to be arranged. Each of the pair of second side surfaces is at least partially configured as a prism whose ridge line extends in a direction perpendicular to the output surface and whose cross-section, when sectioned in a direction parallel to the output surface, has a sawtooth-like shape in which concavity and convexity are repeated. A light of the point light source can be efficiently uniformized in the light guide plate, and thus unevenness of brightness can be prevented.

Light guiding plate, lighting apparatus, and display apparatus

Provided is a light guide plate that is suited for a compact illumination device emitting high-grade light and that allows the orientation thereof to be recognized with ease, an illumination device equipped with the light guide plate, and a display device equipped with the illumination device. Two protrusions ( 12 A, 12 B) are formed on a light-receiving face ( 11 r ) of a light guide plate ( 11 ), and these protrusions ( 12 A, 12 B) serve as a recognition member that allows the orientation of a top surface ( 11 u ) of the light guide plate ( 11 ) to be recognized.

Optical system for coupling light from point light sources into a flat light guide

The invention relates to an optical system for coupling light from at least one approximately point-shaped light source such as a LED into a flat light guide made of a transparent material such as glass or plastic. The inventive system is characterized in that the point light source is arranged above a surface of the light guide and is associated with an optical element, which couples the light from the point light source into the flat light guide at the surface thereof, wherein the in-coupled light satisfies the condition of the critical angle for total reflection and remains inside the flat light guide until controlled out-coupling.

Light guide with decoupling portion and shield collecting the decoupled rays

A light guide comprising an external surface forming a guiding diopter, the guide being suitable for guiding light rays by reflection on the guiding diopter. The guide comprises at least one decoupling portion, with a refraction decoupling diopter arranged so as to refract light rays to decouple them from the guide, and thus transmit them out of the guide through the refraction decoupling diopter.)

Vehicle lamp

A vehicle lamp includes a plurality of light sources, and a light guide plate configured to emit light to the front side of the lamp from a second surface facing a first surface by internally reflecting light, which is emitted from the respective light sources, by a plurality of reflective elements formed on the first surface after causing the light to enter the light guide plate from a rear end face of the light guide plate. The light guide plate is curved to the first surface and gradually becomes thinner toward the front side. The reflective elements are disposed at a predetermined interval in a longitudinal direction and extend in a direction crossing the longitudinal direction.

Backlight device and display device

Provided is a backlight device which can reduce the size and weight of light-guiding members while also improving light use efficiency. The backlight device ( 10 ) is provided with a light-guiding plate ( 11 ) and a plurality of LEDs ( 12 ) which irradiate the light-guiding plate with light. The light-guiding plate includes a plurality of side surfaces ( 11 a ) and a plurality of light incident surfaces ( 11 b ) which are formed in a plurality of corners and are arranged opposite the LEDs. The side surfaces are arranged between adjacent light incident surfaces and are formed in convex shapes.

Universal Light-Emitting Diode For Light Fixtures

A light-emitting diode (LED) system to retrofit a light fixture has a frame configured to be installed under an existing light fixture and a LED lighting assembly couplable to the frame. In one example, the frame is formed as a plurality of rails having a flange to be installed between the light fixture and a grid member of a ceiling suspension system. The frame may be installed without removal of the existing light fixture. The LED lighting assembly includes an LED array and an optical waveguide for dispersing light from the LED array. The LED system maintains a thin profile, enabling it to retrofit existing light fixtures. Installation time is reduced, thereby reducing labor costs, while the LED lighting provides more light with less energy.

Display device

The end surface of the light guide plate has a flat surface and a protruding surface which protrudes with respect to the flat surface. Light traveling from the light source in a direction perpendicular to the flat surface enters the light guide plate in an expanded manner due to refraction at the protruding surface. The protruding surface has a shape in which cylindrical surfaces are integrated, the respective cylindrical surfaces being formed about central axes which are orthogonal to the front surface from which the light exits. A pair of cylindrical surfaces, which is positioned at both end portions of the protruding surface in an arraying direction of the cylindrical surfaces, is each adjacent to the flat surface. Adjacent cylindrical surfaces are connected to each other at a position shifted in a protruding direction of the protruding surface with respect to the flat surface.

Backlight device and liquid crystal display apparatus

A planar light source device includes a first light source for emitting a first light ray having a punctate spatial luminance distribution; a second light source for emitting a second light ray; a first spatial luminance distribution conversion portion for changing the first light ray to a linear spatial luminance distribution; a second spatial luminance distribution conversion portion for changing a spatial luminance distribution of the first and second light rays to a planar spatial luminance distribution; wherein the first light ray is a laser light; the second light ray has a divergence angle larger than the divergence angle of the first light ray when the first light ray is emitted from the first light source; and a slow-axis direction of the first light ray entering the second spatial luminance distribution conversion portion is parallel to an outgoing direction of the planar light.

Backlight unit

A backlight unit includes a light guide plate including a first surface and a second surface, opposite to the first surface, having a recess formed toward the first surface, and a light emitting device array disposed in the recess, the light emitting device array including a plurality of light emitting device packages and a board, on which the light emitting device packages are disposed. The light emitting device packages include first light emitting device packages to emit first light in the recess in a first direction, second light emitting device packages to emit second light in the recess in a second direction opposite to the first direction, and third light emitting device packages to emit third light having light output different from at least one of the first light and/or the second light in the recess in a third direction intersecting the first and second directions.

Display device

A backlight unit includes: a wiring board having a light source mounted thereon; a light guide plate; a light-shielding pressure-sensitive adhesive sheet; and a light diffusion sheet. The front surface of the light guide plate includes an effective region serving as the planar light source and a light entering region ranging from the end surface into which the light enters to the effective region. The wiring board and the light-shielding pressure-sensitive adhesive sheet each have a part positioned in the light entering region. The light diffusion sheet is arranged from the effective region to the light entering region, and overlaps with the light-shielding pressure-sensitive adhesive sheet in the light entering region. On a side closer to the effective region with respect to the light-shielding pressure-sensitive adhesive sheet, the light entering region is covered with the light diffusion sheet without a gap.

Illumination unit and display apparatus using the same

An illumination unit of the present invention includes a tabular light guide plate having a light emitting surface for emitting light coming from an LED as planar light, wherein a recessed portion is formed in the opposite surface of the light emitting surface of the light guide plate, and wherein the LED is provided in the recessed portion so that the optical axis of the LED becomes parallel to the light emitting surface of the light guide plate. Then, a dimming pattern is provided at a location corresponding to the LED of the light emitting surface of the light guide plate, and the dimming pattern includes a main portion covering the LED on the light emitting surface side, and protrusions radially extending toward a light emitting direction of the LED around the LED.

Planar lighting device

A light guide plate has a light guide plate body and at one side thereof a curvedly descending portion formed by curving front and rear surfaces of the light guide plate, with the surface to surface distance kept uniform, to a coaxial arcuate configuration so as to extend towards a direction of a rear surface of the light guide plate body. Spot light sources disposed in face to face relation with a free end face of the curvedly descending portion are arranged to be displaced towards the front surface of the light guide plate from a mid-center plane between the front and rear surfaces of the curvedly descending portion.

Illumination Apparatus with High Conversion Efficiency and Methods of Forming the Same

In various embodiments, an illumination apparatus includes a substantially planar waveguide or a light box, at least one light source emitting light therein, a layer of photoluminescent material for converting a portion of the light to a different wavelength, a reflector for reflecting light back-scattered from the photoluminescent material, and an optically active layer for separating light interacting with the photoluminescent material from light propagating within the waveguide or light box.

Optical assembly, backlight unit having the same, and display apparatus thereof

The present invention provides an optical assembly, a backlight unit having the same, and a display apparatus thereof, and the optical assembly includes: a light emitting device; and a lens disposed above the light emitting device, and the lens has: a lower surface portion through which light emitted from the light emitting device travels inside; an upper surface portion that totally reflects at least some of the light traveling inside through the lower surface portion, downward to the side; and a side portion through which the light totally reflected from the upper surface portion is discharged to the outside.

Backlight module

A backlight module includes a light source assembly, a light guiding plate, an optical clear adhesive, and a light diffusion member. The diffusion member is positioned on the light guiding plate via the optical clear adhesive. The diffusion member includes yellow phosphor powders. The light source assembly includes a substrate and a number of point light sources arrayed on the substrate. The point light sources are blue light emitting diodes. The point light sources are aligned with the light diffusion member.

Compact wearable display

There is provided a wearable display comprising a light source emitting light of a first wavelength; a first SBG device having a front side and a rear side; first and second transparent plates sandwiching said SBG device; independently switchable transparent electrode elements applied to the opposing surfaces of said transparent plates, a means for spatio-temporally modulating light from the light source to provide image light and a means for coupling the image light into the light guide formed by the two transparent plates and the SBG device. The SBG device comprises a multiplicity of selectively switchable grating regions. The SBG device diffracts image into the pupil of an eye.

Led lighting module and lighting device comprised thereof

A lighting module and lighting device are described. Embodiments of the lighting modules comprise light emitting diodes (LEDs), a power supply, and a waveguide that disperses light from the LEDs to illuminate a lighted side of the lighting module. In one embodiment, the lighting module comprises a substrate, on which the LEDs and power supply are mounted. The substrate includes an interface that permits the lighting module to communicate with an adjacent lighting module when positioned in an array that forms an LED lighting device.

DISPLAY DEVICE

Provided is a display device. The display device includes a light guide plate, a light source disposed on a side surface of the light guide plate, a light conversion member disposed between the light source and the light guide plate, and a plurality of light path change particles disposed between the light conversion member and the light guide plate. 1. A display device comprising:a light guide plate;a light source disposed on a side surface of the light guide plate;a light conversion member disposed between the light source and the light guide plate; anda plurality of light path change particles disposed between the light conversion member and the light guide plate.2. The display device of claim 1 , wherein each of the light path change particles is formed of glass or polymer.3. The display device of claim 1 , further comprising an adhesion member closely attached to the light conversion member and the light guide plate claim 1 ,wherein the light path change particles are inserted into the adhesion member.4. The display device of claim 1 , wherein each of the light path change particles comprises:a transparent bead; anda reflection part disposed on a surface of the bead.5. The display device of claim 4 , wherein the reflection part is formed of MgF claim 4 , SiO claim 4 , TiOor ZrO.6. The display device of claim 4 , wherein the reflection part has a first reflectance with respect to light having a wavelength of about 400 nm to about 500 nm and a second reflectance with respect to light having a wavelength of about 500 nm to about 700 nm claim 4 ,wherein the first reflectance is greater than the second reflectance.7. The display device of claim 6 , wherein the light source generates the first light having the wavelength of about 400 nm to about 500 nm claim 6 , and the light conversion member converts the first light into the light having the wavelength of about 500 nm to about 700 nm.8. The display device of claim 6 , wherein the reflection part comprises a ...

Light-emitting module, backlight assembly having the same and display apparatus having the same

A light-emitting module includes a light source, a printed circuit board (“PCB”) and a light absorption portion. The light source generates and emits a light, and the light source is on a first surface of the PCB. The light absorption portion is on the first surface of the PCB and absorbs the light.

Illuminated interior equipment component for a vehicle

The invention relates to an interior equipment component for a vehicle, comprising a light emission element for emitting light and a strip-shaped light guide element. The light guide element has here a first surface and a second surface, wherein the first surface is one of the two largest surfaces of the light guide element, and the second surface is a surface which deviates therefrom, and the first surface comprises an input face. In addition, the light guide element and the light emission element are arranged and configured in such a way that light from the light emission element can be input into the light guide element via the input face and can be output via the second surface.

Edge type LED backlight unit

A LED backlight unit structure, especially a edge type LED backlight unit, which had a substrate and a one or plurality LED light source lay on the substrate, and a light guide plate 101, which directly couple with the one or plurality LED by using the insert molding technology. A light modulation structure thereon the light guide plate, where near the one or plurality LED light source. A LED backlight unit structure, also can apply light tube or reflecting structure on the light guide plate, and that also can combined with the above-mentioned structures.

Optical arrangement

The invention relates to an optical arrangement having a light source, which emits a beam, and having a light guide, which has a light-guiding layer, in which the coupled-in beam is guided between two substantially mutually opposite surface-type reflection layers. The optical arrangement is characterized in that the optical light paths of the individual rays of the beam, in particular at least of the marginal rays, from the light source to impingement on one of the reflection layers are substantially of equal length.

Light guide device

A light guide device is provided. The light guide device includes a light guide plate and a light source. The light guide plate includes an incident plane, a bottom plane and a top plane. The bottom plane includes a reflective plane and an inclined bottom plane, wherein the inclined bottom plane connects the bottom of the incident plane and the reflective plane, and the inclined bottom plane is inclined relative to the reflective plane. The top plane includes an inclined top plane, a light-emitting plane and a connecting plane, wherein the inclined top plane connects the top of the incident plane and the connecting plane, the connecting plane connects the inclined top plane and the light-emitting plane, and the inclined top plane is inclined relative to the connecting surface. Furthermore, the light source is located next to the incident plane.

LIGHTING DEVICE, DISPLAY DEVICE AND TELEVISION RECEIVING DEVICE

An object of the present invention is to improve the rate at which light enters a display surface from an edge light-type lighting device and to improve the brightness of the display surface. A backlight device of the present invention is provided with: a light guide plate that has a light-receiving surface on a side face; and an LED light source that is disposed so as to face the light-receiving surface of the light guide plate and covered by a lens . The lens has a partially cylindrical shape, the cylinder axis thereof extending in the thickness direction of the light guide plate. Consequently, light leakage to the outside of the light guide plate in the thickness direction of the light guide plate can be prevented or mitigated. In addition, light can be diverged in a direction that is along the light-receiving surface of the light guide plate and perpendicular to the thickness direction of the light guide plate. 1: An illumination device , comprising:a light guide plate that has a light-receiving surface on a side face; anda light source disposed facing the light-receiving surface of the light guide plate and covered by a lens,wherein the lens has a partially cylindrical shape in which an axis thereof extends in a thickness direction of the light guide plate.2: The illumination device according to claim 1 , wherein the lens has an outline that is an arc in a plan view that protrudes towards the light-receiving surface.3: The illumination device according to claim 1 , wherein the lens has an outline with an angular shape in a side view that protrudes towards the light-receiving surface.4: The illumination device according to claim 1 , wherein the lens has an outline that is rectangular in a front view with a short axis direction thereof being a thickness direction of the light guide plate.5: The illumination device according to claim 1 , wherein the lens has an outline that is trapezoidal in a side view and protrudes towards the light-receiving surface.6: The ...

Optical light guide coupler

An optical light guide coupler for coupling at least two light guides comprises an input face and an output face, wherein the optical light guide coupler is configured to receive light from a first light guide having a stepped output profile and is configured to transmit that light to a second light guide having a non-stepped profile. The input face of the light guide coupler is registered to the stepped output profile of the first light guide and the output face of the light guide coupler is at least one of rectilinear and curved.

Light unit

The present invention provides a light unit, comprising a printed circuit board equipped with a plurality of LEDs; and a light guide member equipped with mounting grooves to house the LEDs. It is preferred that the light guide member comprises one surface and another surface facing the one surface; a first density pattern area and a second density pattern area having higher density than that of the first density pattern area are formed in the one surface; and the second density pattern is disposed in an area closer to the light emitting surface of the LED than the first density pattern area. According to the present invention, hot spots can be removed by forming high density optical patterns on the upper surface of a light guide member and diffusing the light of LEDs; meanwhile, the transmission range of light can be extended and light extraction efficiency can be improved by disposing low density optical patterns in adjacent areas.

Backlight module

An exemplary illuminating apparatus includes a light guiding plate, a light source facing a light input surface of the light guiding plate, and a complementary color element adjacent to the light source. The light source comprises a number of LEDs which emit light with at least two wavelengths. The at least two wavelengths light mix with each other to gain a white light. The complementary color element is configured for receiving light emitted from adjacent, outmost LED and converting the light into white light. The white light is reflected by the complementary color element and emits from the light guiding plate through the light output surface. The complementary color element includes a plurality of first and second complementary color zones arranged alternatively and in a line.

Universal Light-Emitting Diode Retrofit Assembly For Light Fixtures

A light-emitting diode (LED) system to retrofit a light fixture has a frame configured to be installed under an existing light fixture and a LED lighting assembly couplable to the frame. In one example, the frame is formed as a plurality of rails having a flange to be installed between the light fixture and a grid member of a ceiling suspension system. The frame may be installed without removal of the existing light fixture. The LED lighting assembly includes an LED array and an optical waveguide for dispersing light from the LED array. The LED system maintains a thin profile, enabling it to retrofit existing light fixtures. Installation time is reduced, thereby reducing labor costs, while the LED lighting provides more light with less energy. 1. A light-emitting diode (LED) system to retrofit a light fixture comprising:a frame to be installed under a light fixture installed in a ceiling suspension system, the frame having a perimeter and a light seal surface arranged around the perimeter; anda LED lighting assembly detachably couplable to the frame such that at least a portion of the LED lighting assembly is received by the light seal surface of the frame.2. The LED system according to claim 1 , wherein the frame defines an interior opening and the light seal surface extends into the interior opening claim 1 , the system further comprises a flange arranged to project externally from the perimeter away from the interior opening and opposite the light seal surface claim 1 , the flange being configured for installation between the light fixture and a rail of a ceiling suspension system.3. The LED system according to claim 2 , wherein the frame comprises a plurality of rails claim 2 , each of the rails having the flange.4. The LED system according to claim 3 , wherein the plurality of rails comprises four rails claim 3 , including first and second end rails and first and second side rails.5. The LED system according to claim 3 , further comprising a fastening mechanism ...

Method of manufacturing color converting member

A color converting member is capable of suppressing deterioration in a phosphor by a simple manufacturing process. A method of manufacturing a color converting member includes a process of molding a resin material into a shape. In the process, molding the resin material and the phosphor integrally into a shape is performed, after kneading a phosphor that converts one color light to another color light into the resin material.

LIGHT SOURCE HAVING LIGHT EMITTING DIODE

An LED includes an LED chip, a first package configured for packaging the LED chip, the first package including a flat first surface, and a second package including a second surface opposing the first surface. A micro-structure is defined in the second surface and protruding toward the first surface. A gap is maintained between the first and second surfaces. The gap is filled with a filler, and the refractive index of the filler is smaller than that of the first and second packages. Light generated by the LED chip radiates first through the first package, then the gap and the micro-structure, thereafter the second package to finally reach an outside of the LED. A light module including the LED is also provided. 1. A light source , comprising:a light guiding plate comprising a light incident surface; and an LED chip;', 'a first package configured for packaging the LED chip, the first package comprising a flat first surface; and', 'a second package configured for packaging the first package, the second package comprising a planar second surface substantially parallel to the first surface, and an outer surface, wherein a micro-structure is formed at the second surface and protrudes from the second surface toward the first surface, a gap is maintained between the first and second surfaces, the gap is filled with a filler, and a refractive index of the filler is smaller than that of the first and second packages; light generated by the LED chip penetrating the first surface of the first package, then entering the filled gap, and then passing through the micro-structure and the second surface to enter the second package, and finally exiting from the outer surface of the second package., 'a plurality of LEDs arranged adjacent to the light incident surface, each LED comprising2. The light source of claim 1 , wherein the plurality of LEDs are arranged in a line substantially parallel to the light incident surface.3. The light source of claim 1 , wherein the micro-structure ...

Side-light display illuminator

A light guide for illuminating a display screen, including a vertical cone-shaped entrance surface including an aperture for admitting light beams emitted by an LED, a folding mirror for reflecting the admitted light beams at an angle of approximately 90°, and for horizontally collimating the admitted light beams, a horizontal guide for guiding the reflected light beams to an exit surface, and an exit surface positioned above a perimeter of a display screen for directing the guided light towards a portion of the display screen, the exit surface being tilted vertically from the horizontal at a slight angle to direct the guided light beams towards the display, and being shaped horizontally as a concave lens to spread the guided light beams horizontally over an angular expanse of the display screen.

Light unit

A light unit is provided. The light unit includes a PCB mounted with a plurality of LEDs, and a light guide member having a plurality of reception grooves piercing therethrough and receiving the LEDs, wherein the light guide member includes one surface and the other surface opposite to the one surface, and the one surface of the light guide member is further coated with the resin material. The reception grooves are formed in the light guide member and are filled with a fluid resin material, thus preventing the damage to the LED caused by the difference between the thermal expansion rates of the components such as the light guide member, the reflection film and the PCB.

SURFACE LIGHT SOURCE DEVICE

A surface light source device has a point light source disposed opposite a light incident surface of a light guide plate. The light guide plate includes a light introduction part, and a light guide plate body having a thickness smaller than a maximum thickness of the light introduction part. The light introduction part includes an inclined surface inclined from a surface in a portion having a thickness larger than the thickness of the light guide plate body toward an end of the surface of the light guide plate body. The light guide plate body has a light exit pattern for reflecting the light in the light guide plate body to output the light from a light exit surface. In a region close to the point light source of the light guide plate body, the thickness of the light guide plate body increases gradually with distance from the point light source. 1. A surface light source device comprising:a light source; anda light guide plate configured to introduces light emitted from the light source through a light incident surface to output the light through a light exit surface, the light guide plate including a light introduction part configured to traps the light emitted from the light source through the light incident surface, the light guide plate including a light guide plate body being provided to be continuously joined to the light introduction part, a thickness of the light guide plate body being smaller than a maximum thickness of the light introduction part, whereinthe light introduction part includes an inclined surface on at least one of a surface on a light exit side of the light guide plate and an opposite surface thereof, the inclined surface is inclined from a surface in a portion having a thickness larger than the thickness of the light guide plate body toward an end of a surface of the light guide plate body,the light guide plate body includes a light exit pattern on at least one of a surface on the light exit side of the light guide plate and an opposite ...

Display device and planar light source device

The present invention relates to a technique which makes a backlight used in a liquid crystal display device thin and light-weight. The present invention provides a liquid crystal display device which includes a display panel and a backlight arranged behind the display panel, wherein the backlight includes a film-like light guide member, a film-like light semi-transmissive member adhered to a first surface of the light guide member which faces the display panel in an opposed manner, a film-like reflective member adhered to a back surface of the light guide member opposite to the first surface, and a spot light source arranged at a position of the light guide member at which light is incident on the light guide member from the first surface or the back surface. A refractive index of the light semi-transmissive member is set smaller than a refractive index of the light guide member.

Edge-type backlight module and liquid crystal display using the same

An edge-type backlight module and a liquid crystal display using the same. The edge-type backlight module comprising a printed circuit board having a supporting surface; plural light emitting diodes disposed on the supporting surface, each of the light emitting diodes comprising a light emitting surface and the light emitted by the light emitting diode being emitted from the light emitting surface; a reflective film disposed on the supporting surface; a light guide plate disposed above the reflective film so that the reflective film being disposed between the light guide plate and the supporting surface; a reflective surface disposed on a side edge of the light guide plate and kept a distance from the light emitting diode, the reflective surface used for reflecting the light emitted from the light emitting surface; and a dark surface disposed on the supporting surface for absorbing the light reflected by the reflective surface.

FRONT-LIGHT MODULE AND LIGHT SOURCE MODULATION APPARATUS THEREOF

A front-light module includes at least one point light source, a light source modulation apparatus and a light guide plate. The light source modulation apparatus includes a body and a plurality of uniform illumination microstructures. The body includes a light incident surface and a light emission surface. The point light source is disposed beside the light incident surface, and the light emission surface is opposite to the light incident surface. The uniform illumination microstructures are disposed on the light emission surface of the body. Each uniform illumination microstructure is arc-shaped. 1. A light source modulation apparatus , comprising:a body having a light incident surface and a light emission surface opposite to the light incident surface, wherein the light incident surface is used for receiving light from at least one point light source; anda plurality of uniform illumination microstructures disposed on the light emission surface of the body, wherein each of the uniform illumination microstructures is arc-shaped.2. The light source modulation apparatus of claim 1 , wherein the uniform illumination microstructures are continuously connected along a lengthwise direction of the body.3. The light source modulation apparatus of claim 2 , wherein the uniform illumination microstructures cover the whole light emission surface of the body.4. The light source modulation apparatus of claim 1 , wherein the uniform illumination microstructures are protruded on the light emission surface of the body.5. The light source modulation apparatus of claim 1 , wherein the uniform illumination microstructures are concave on the light emission surface of the body.6. The light source modulation apparatus of claim 1 , further comprising:a plurality of light diffusing microstructures disposed on the light incident surface of the body for expanding an emitting range of the point light source.7. The light source modulation apparatus of claim 1 , wherein the body comprises:a ...

ILLUMINATION ASSEMBLY AND METHOD OF FORMING SAME

An illumination assembly that includes a light guide and a plurality of light sources operable to direct light into the light guide is disclosed. The light sources have a center-to-center spacing of at least 15 mm, and a distance between a primary emitting surface of at least one light source of the plurality of light sources and the input surface is no greater than 1 mm. The assembly further includes a structured surface layer positioned between the plurality of light sources and the input surface. The structured surface layer includes a substrate and a plurality of structures on a first surface of the substrate facing the plurality of light sources. The assembly further includes a plurality of extraction features operable to direct light from the light guide through an output surface of the light guide. 1. An illumination assembly , comprising:a light guide comprising an output surface and an input surface along at least one edge of the light guide that is substantially orthogonal to the output surface, wherein the input surface extends along a y-axis;a plurality of light sources disposed along an axis that is substantially parallel to the y-axis, wherein the light sources are operable to direct light into the light guide through the input surface, wherein the light sources have a center-to-center spacing along the y-axis of at least 15 mm, and further wherein a distance between a primary emitting surface of at least one light source of the plurality of light sources and the input surface is no greater than 1 mm;a structured surface layer positioned between the plurality of light sources and the input surface of the light guide, wherein the structured surface layer comprises a substrate and a plurality of structures on a first surface of the substrate facing the plurality of light sources; anda plurality of extraction features operable to direct light from the light guide through the output surface, wherein one or more extraction features are positioned within 10 ...

Light emitting device, display unit, and illumination unit

A light emitting device includes: a light source; an optical component including a light incident surface, the light incident surface facing the light source; and a wavelength conversion member provided between the light source and the light incident surface, the wavelength conversion member crossing a first region and extending to a second region outside the first region, the first region being surrounded by the light incident surface and light paths of light that is emitted from the light source and enters edges of the light incident surface.

Backlight assembly and display apparatus having the same

In a backlight assembly and a display apparatus having the backlight assembly, the backlight assembly includes a light source, a light guide, a first reflector, and an optical unit. The light guide is disposed adjacent to the light source, extends substantially parallel with a longitudinal direction of the light source, and refracts light emitted from the light source. The first reflector is disposed under the light guide and reflects the refracted light toward the optical unit. The optical unit is disposed over the first reflector such that an empty space is formed between the optical unit and the first reflector.

Light guide plate holder and light guide plate testing system using same

A light guide plate holder includes a base, a partitioning plate, and two clamping blocks. The base includes a bottom wall and two side walls extending from opposite ends of the bottom wall, the bottom wall and the two side walls cooperatively forming a receiving space. The partitioning plate is positioned on the bottom wall in the receiving space, the partitioning plate partitioning the receiving space into two sub-spaces. The clamping blocks are detachably received in the respective sub-spaces, and each of the clamping blocks is configured for cooperating with the partitioning plate to clamp a light guide plate therebetween. A light guide plate testing system using the light guide plate holder is also provided. The testing system is used for testing microstructures on a light incident surface of a light guide plate.

Voltage controlled microlens sheet

This disclosure provides systems, methods and apparatus relating to implementations of an electrically controlled light conditioning sheet. In one aspect, the electrically controlled light conditioning sheet includes a planar electrode having a first conductor and a second conductor and a transmissive elastic layer. The transmissive elastic layer is configured to deform in response to a potential difference applied between the first and the second conductor and produce regions of optical refractive power. The angular spread and/or the radiation pattern of an incoming beam of light incident on the electrically controlled light conditioning sheet is altered by the action of the regions of optical refractive power produced by the applied potential difference.

LIGHT EMITTING UNIT, DISPLAY, AND LIGHTING APPARATUS

There are provided a light emitting unit that enhances the uniformity of in-plane colors, as well as a display and a lighting apparatus that include such a light emitting unit thereon. The light emitting unit includes: a plurality of light emitting sections each having a light source and a wavelength conversion member, the wavelength conversion member converting a wavelength of light emitted from the light source; an optical component having a light incident surface in opposition to the plurality of light emitting sections; and a color unevenness prevention structure suppressing direct entering of light from the light source into the optical component. 1. A light emitting unit , comprising:a plurality of light emitting sections each having a light source and a wavelength conversion member, the wavelength conversion member converting a wavelength of light emitted from the light source;an optical component having a light incident surface in opposition to the plurality of light emitting sections; anda color unevenness prevention structure suppressing direct entering of light from the light source into the optical component.2. The light emitting unit according to claim 1 , wherein the color unevenness prevention structure is composed of a light-shielding section between the wavelength conversion members adjacent to each other.3. The light emitting unit according to claim 2 , wherein the light-shielding section is a reflection section that returns light heading directly from the light source toward the optical component back to the wavelength conversion member side.4. The light emitting unit according to claim 3 , further comprising a holder holding the plurality of wavelength conversion members and including a barrier section between the wavelength conversion members adjacent to each other claim 3 , whereinthe reflection section is composed of the barrier section of the holder.5. The light emitting unit according to claim 1 , wherein the color unevenness prevention ...

LIGHT EMITTING PANEL ASSEMBLIES

An optical assembly comprises light sources and a light emitting panel member having an input edge to which each of the light sources is optically coupled at a different location along the input edge. Different sets of individual optical deformities on or in at least one of the sides of the panel member each have at least one surface that is shaped or oriented to extract light propagating in the same direction through the panel member in different directions for viewing from different angles through one of the sides of the panel member. 1. An optical assembly comprising light sources and a light emitting panel member , the light emitting panel member comprising:opposite sides, one of the sides comprising a light emitting surface area;an input edge for receiving light from the light sources for propagating the light through the panel member in one direction, each of the light sources being optically coupled to a different location along the input edge; anda pattern of individual optical deformities on or in at least one of the sides of the panel member for creating a light output distribution from the light emitting surface area, the individual optical deformities being varied throughout the pattern, different sets of the optical deformities within the pattern each having at least one surface that is shaped or oriented to extract light propagating in the one direction through the panel member in respective different directions for viewing from respective different angles through the one of the sides of the panel member, wherein the individual optical deformities that create at least one of the light output distributions are varied to create a design/image output distribution.2. An optical assembly comprising light sources and a light emitting panel member , the light emitting panel member comprising:opposite sides, one of the sides comprising a light emitting surface area;an input edge for receiving light from the light sources, each of the light sources being ...

Directional Backlight

Disclosed is an optical inline light guiding apparatus which may include a substantially parallel planar light expansion section and a light extraction section comprising a stepped structure, in which the steps may be extraction features and guiding features. Such controlled illumination may provide for efficient, multi-user autostereoscopic displays with wide viewing freedom, high efficiency and low cross talk and other directional display uses. 1. A directional backlight comprising:an array of light sources;a light expansion waveguide section having an input end and opposed guide surfaces for guiding light along the waveguide, the array of light sources disposed at different input positions in a lateral direction across the input end of the light expansion waveguide section; anda light extraction waveguide section arranged to receive light from the light expansion waveguide section, and comprising first and second, opposed guide surfaces for guiding light along the light extraction waveguide section, the first guide surface being arranged to guide light by total internal reflection and the second guide surface having a stepped shape comprising a plurality of facets and intermediate regions intermediate the facets, the intermediate regions being arranged to direct light through the light extraction waveguide section without extracting it, and the facets facing the light expansion waveguide section and oriented to reflect light guided through the light extraction waveguide section in directions allowing exit through the first guide surface into optical windows in output directions distributed in the lateral direction that are dependent on the input positions of the light sources.2. A directional backlight according to claim 1 , further comprising a diffuser extending across the first guide surface of the light extraction waveguide section.3. A directional backlight according to claim 2 , wherein the diffuser is an asymmetric diffuser that provides greater angular ...

Surface light source device and liquid crystal display device

An angular intensity distribution shaping member includes a first surface for receiving a light beam emitted from a light source, the first surface having a length in a width direction that is longer than that in a thickness direction; second surfaces forming a plate-shaped light path on which the light beam incident from the first surface propagates by total reflection, the second surfaces including at least one adjustment surface for spreading a full angle of an angular intensity distribution, in the width direction, of the light beam incident from the first surface so that the full angle becomes wider than that of the angular intensity distribution of the light beam just after emission from the light source; and a third surface through which the light beam exits, the full angle of its angular intensity distribution in the width direction having been widened by the at least one adjustment surface.

EDGE LIT LIGHTING ASSEMBLY WITH SPECTRUM ADJUSTER

A lighting assembly comprises a light source and a light guide having a light input edge and a light output surface. Light from the light source enters the light input edge and is propagated within the light guide by total internal reflection. A spectrum adjuster is adjustable or selected to achieve a desired spectrum of the light within the light guide. 1. A lighting assembly , comprising:a light source;a light guide comprising a light input edge adjacent the light source, opposed major surfaces between which light input at the light input edge propagates by total internal reflection, a respective light output region associated with at least one of the major surfaces and a transition region between the light input edge and the light output region; anda spectrum adjuster at the transition region to modify the spectrum of a portion of the light within the light guide;wherein the spectrum adjuster is adjustable or selected to achieve a desired spectrum of the light within the light guide.2. The lighting assembly of claim 1 , wherein:the spectrum adjuster is variably positionable relative to the light guide to vary a portion of the light emitted by the light source incident thereon, anda remainder of the light bypasses the spectrum adjuster and mixes with the light from the spectrum adjuster to achieve the desired spectrum of the light within the light guide.3. The lighting assembly of claim 2 , wherein the spectrum adjuster is variably positionable within an opening in the transition region.4. The lighting assembly of claim 3 , wherein the spectrum adjuster comprises a spectrum-adjusting element coupled to a transparent substrate having a cross-sectional shape substantially corresponding to a cross-sectional shape of the opening in the transition region.5. The lighting assembly of claim 4 , wherein the transparent substrate is rotatably mounted within the opening in the transition region to vary the orientation of the spectrum-adjusting element relative to the ...

LIQUID CRYSTAL DISPLAY MODULE AND LIQUID CRYSTAL DISPLAY APPARATUS HAVING THE SAME

A liquid crystal display module is provided including a liquid crystal panel for displaying an image; a backlight unit including a light source unit for providing light to the liquid crystal panel; and a packaging chassis which holds the liquid crystal panel and the backlight unit in a single module. The light source unit includes a plurality of light sources; a light source support board for supporting the light sources; a wavelength conversion member, disposed in front of the light sources, which converts wavelengths of light emitted from the light sources; and a fixing member which holds the wavelength conversion member in front of the light sources. 1. A liquid crystal display module comprising:a liquid crystal panel which displays an image;a backlight unit comprising at least one light source unit which provides light to the liquid crystal panel; anda packaging chassis holding the liquid crystal panel and the backlight unit, a plurality of light sources;', 'a light source support board on which the light sources are supported;', 'a wavelength conversion member disposed in front of the light sources, wherein the wavelength conversion member converts wavelengths of the light emitted from the plurality of light sources; and', 'a fixing member which holds the wavelength conversion member in front of the light sources., 'wherein the light source unit comprises2. The liquid crystal display module of claim 1 , wherein the fixing member defines a mounting space within which the wavelength conversion member is disposed and defines an accommodation space within which the plurality of light sources are accommodated.3. The liquid crystal display module of claim 2 , wherein:the light source support board has a rectangular shape,the plurality of light sources are arranged along a longitudinal direction of the light source support board, andthe wavelength conversion member extends in the longitudinal direction of the light source support board.4. The liquid crystal display ...

Side-Edge Backlight Module

The present invention provides a side-edge backlight module, which includes a backplane, a light guide plate arranged inside the backplane, a backlight source arranged inside the backplane, and a photo coupler arranged between the light guide plate and the backlight source, whereby light emitting from the backlight source is subjected to light mixing by the photo coupler and then enters the light guide plate so as to improve homogeneity of light illumination of the light guide plate at a location close to a backlight source. The side-edge backlight module arranges a photo coupler between a light incidence surface of a light guide plate and LED lights of a backlight source in order to make lights emitting from the backlight source incident to the light guide plate in a uniform manner thereby providing the light guide plate with homogeneous light illumination. 1. A side-edge backlight module , comprising a backplane , a light guide plate arranged inside the backplane , a backlight source arranged inside the backplane , and a photo coupler arranged between the light guide plate and the backlight source , whereby light emitting from the backlight source is subjected to light mixing by the photo coupler and then enters the light guide plate so as to improve homogeneity of light illumination of the light guide plate at a location close to a backlight source.2. The side-edge backlight module as claimed in claim 1 , wherein the backlight source comprises a printed circuit board and a plurality of LED lights that is mounted to the printed circuit board and electrically connected to the printed circuit board claim 1 , gaps being present between the LED lights.3. The side-edge backlight module as claimed in claim 2 , wherein the photo coupler comprises a main body and a plurality of first slots and a plurality of second slots that face the backlight source claim 2 , the first slots being arranged to correspond to the LED lights claim 2 , the second slots being arranged to ...

Source conditioning for imaging directional backlights

Disclosed is an imaging directional backlight apparatus for providing large area uniform directed illumination from localized light sources. Within an exemplary optical valve system, a waveguide comprises a stepped structure, where the steps comprise extraction features hidden to guided light, propagating in a first forward direction. Returning light propagating in a second backward direction may be refracted, diffracted, or reflected by the features to provide discrete illumination beams exiting from the top surface of the waveguide. Such controlled illumination may provide for efficient, multi-user autostereoscopic displays as well as improved 2D display functionality. Illumination uniformity is provided by the positioning, packaging, and optically modifying of individual input sources. The latter employs non-imaging and refractive optics.

Light resource module with larger illumination area and a lighting fixture thereof

The present invention is provided with a light resource module with larger illumination area, wherein comprising a curve light guide column, the surface of which is formed with several microstructures with light scattering, light refraction or light reflex functions; and two LED light resources, which are corresponding to the two ends of the light guide column The present invention is further provided with a lighting fixture, which comprising at least a light guide column, a heat emission element and a heat conduction element. The present invention of a light resource module with larger illumination area and a lighting fixture thereof have advantages that light is guided to the rear area of the light resource module to enlarge illumination area and reduce unavailable area, making the light resource module and the lighting fixture with larger illumination area.

ELECTRONIC DEVICE AND METHOD OF GUIDING LIGHT IN THE SAME

An electronic device is provided which is capable of reducing variations in the brightness of lights emitted from the light emitting parts. The electronic device has: a housing; a plurality of light sources provided within the housing, each light source emitting light along a light axis, the light axes of the light sources being directed in the same direction; and plurality of light guide plates provided within the housing, the light guide plates guiding the lights emitted from the light sources, respectively. Each light guide plate has a light incident plane on which the light emitted from the light source is incident and a light emitting part that is exposed at an outer surface of the housing. One of the light guide plates has a light incident plane angle that is different from the light incident plane angle of another light guide plate so that light axes of the lights that are guided within the light guide plates pass through the light emitting parts, wherein the light incident plane angle is an acute angle that is formed between the normal line of the light incident plane and the light axis of the light that is incident on the light incident plane. 1. An electronic device comprising:a housing;a plurality of light sources provided within the housing, each light source emitting light along a light axis; anda plurality of light guide plates provided within the housing, the light guide plates guiding the lights emitted from the light sources, respectively,wherein each light guide plate comprises a light incident plane on which the light emitted from the light source is incident and a light emitting part that is exposed at an outer surface of the housing; andwherein one of the light guide plates has a light incident plane angle that is different from a light incident plane angle of another light guide plate so that light axes of the lights that are guided within the light guide plates pass through the light emitting parts, wherein the light incident plane angle is an ...

Backlight module and display apparatus thereof

A backlight module is used for providing white light to a liquid crystal panel. The backlight module includes a light guide plate, a backlight source, and a phosphor layer structure. The light guide plate has a light entrance surface. The backlight source is disposed on a position corresponding to the light entrance surface of the light guide plate for emitting light. The phosphor layer structure is disposed between the backlight source and the light entrance surface of the light guide plate and is away from the backlight source by a specific distance, for receiving the light emitted by the backlight source to generate the white light.

Backlight module

A backlight module includes a light source, a light guide plate and at least one optical film. The light source has a plurality of light emitting devices. The light guide plate includes a light entrance portion, a main body portion and at least one positioning structure. The light entrance portion has a top surface and a light entrance surface. The light source is disposed corresponding to the light entrance surface. The top surface is adjacently connected to the light entrance surface. The main body is connected to the light entrance portion and has a first light extraction surface connecting the top surface. The positioning structure is disposed on the top surface and corresponding to an interval between two adjacent light emitting devices, and has an accommodating space. The optical film is disposed above the light guide plate and has at least one protruding portion disposed in the accommodating space.

LIGHT GUIDE PLATE, METHOD OF MANUFACTURING THE SAME, AND LIQUID CRYSTAL DISPLAY DEVICE INCLUDING THE SAME

A light guide plate includes a light incident surface to which light is incident as incident light, an opposite surface formed opposite to the light incident surface, a light emitting surface through which the incident light is emitted, a rear surface formed opposite to the light emitting surface and including a prism pattern which reflects the incident light to the light emitting surface, and lateral surfaces, wherein a diffuse reflection pattern is formed on at least any one of the light emitting surface and the lateral surfaces to diffuse-reflect light incident to the lateral surfaces, thus rendering a brightness at both the opposite surface and the light incident surface substantially uniform. 1. A light guide plate comprising:a first surface;a second surface formed opposite to the first surface;a third surface connected with the first and second surfaces;a fourth surface formed opposite to the third surface and including a prism pattern; andlateral surfaces,wherein the fourth surface further comprises at least one reflection pattern formed in a prism shape spaced apart from and interposed between prism lines defining the prism pattern to reflect light to the third surface, andwherein the reflection pattern has a height from the rear surface different from a height of the prism lines defining the prism pattern from the rear surface.2. The light guide plate of claim 1 , wherein the reflection pattern is formed within a region of the fourth surface occupying about 10% of a length between the lateral surfaces claim 1 , and the region is disposed adjacent at least one of the lateral surfaces.3. The light guide plate of claim 2 , wherein the reflection pattern has a vertex angle in a range of about 130° to about 140°.4. The light guide plate of claim 3 , wherein the reflection pattern has a height in a range of about 1 μm to about 10 μm from the fourth surface and a width in a range of several tens to several hundreds of micrometers.5. The light guide plate of claim ...

SIMULATED SUNLIGHT IRRADIATION APPARATUS

A simulated sunlight irradiation apparatus () has transmittance adjustment members (and ) provided above an irradiation surface of a light guide plate () and in the vicinity of either incident face of the light guide plate () on which simulated sunlight is incident. The transmittance adjustment members (and ) adjust the transmittance of light in a portion of a wavelength band of simulated sunlight that is emitted from the irradiation surface of the light guide plate (), thus bringing about improvement in spectral coincidence of the simulated sunlight. This provides a simulated sunlight irradiation apparatus that can radiate simulated sunlight with high spectral coincidence. 1. A simulated sunlight irradiation apparatus comprising:a first light source which radiates a first ray of light;a second light source which radiates a second ray of light having a spectral distribution that is different from a spectral distribution of the first ray of light;a first optical filter which controls a transmittance of the first ray of light;a second optical filter which controls a transmittance of the second ray of light;a photoselection section which receives the first ray of light whose transmittance has been controlled by the first optical filter and the second ray of light whose transmittance has been controlled by the second optical filter, and which emits simulated sunlight by mixing together a ray of light selected from the first ray of light thus received and a ray of light selected from the second ray of light thus received;a light guide plate which receives the simulated sunlight emitted from the photoselection section;a light extraction section which takes out, to an irradiation surface of the light guide plate, the simulated sunlight received by the light guide plate; anda transmittance adjustment member which is located closer to the irradiation surface of the light guide plate than the light extraction section is, and which adjusts a transmittance of light in a portion ...

Backlight module

A backlight module for illuminating a display is described. The backlight module may be provided in an electronic device along with a light source for illuminating an LCD display. The backlight module includes a diffuser, a light guide having a top surface and a bottom surface, a reflector, and a prism structure positioned between the light guide bottom surface and the reflector. The prism structure has a plurality of prisms extending towards the light guide. The prism structure may include a film or a top portion of the reflector having a plurality of prisms extending towards the light guide.

Surface light source device

A surface light source device has a light source, and a light guide plate introducing light of the light source from a light incidence surface and emitting the light from a light exit surface to outside. The light source being is provided at a position facing the light incidence surface of the light guide plate. The light guide plate includes a light introducing part for enclosing the light from the light source entering from the light incidence surface and a light guide plate main body having a thickness smaller than a maximum thickness of the light introducing part, provided so as to be continued to the light introducing part, and emitting the enclosed light from the light exit surface by light emitting portion to outside.

Lighting system and display device

A plurality of prisms 23 e which make an input angle of light from an LED 21 with respect to a rear surface of a light guiding body 23 gradually small are provided on a light emission plane 23 b of the light guiding body 23 , and a plurality of prisms 24 b which cause the light from the LED 21 to be totally reflected to front in an interface between a rear surface of a low refractive index layer 24 and an air layer are provided on the rear surface of the light guiding plate 22 . The light guiding plate 22 further includes an inclined plane 30 which is inclined to an optical axis O of the light from the LED 21 . The inclined plane 30 is configured so as to cause input light to be reflected in the direction which is close to the optical axis O.

Method of manufacturing directional backlight apparatus and directional structured optical film

Disclosed is a manufacturing method for a stepped imaging directional backlight apparatus which may include a structured optical film and a tapered body. The structured optical film may include multiple optical functions and may be assembled by folding onto the tapered body, reducing cost and complexity of manufacture.

Led lamp for lighting

A LED illumination lamp extending substantially along and about an axis, and having: a LED light source located substantially along the axis; a light diverting optical element located substantially in front of the light source, along the axis, and designed to laterally divert the light impinging substantially axially on the optical element; and an optical guide plate surrounding the optical element and the axis, and having a seat housing the light source and the optical element; the plate extending along the axis, between two opposite faces respectively defining a front light-exit surface, and a rear active surface having a number of circumferential annular projections spaced radially apart and concentric with the axis.

Light emitting device comprising a lightguide film and aligned coupling lightguides

A light emitting device includes a film-based lightguide and coupling lightguides having ends stacked and aligned. In one embodiment, the light emitting device comprises a relative position maintaining element that extends beyond the light input surface defined by the stacked ends of an array of coupling lightguides. In another embodiment, a light emitting device comprises an alignment guide or cavity.

Diffuser Plate, Backlight Unit And Display Device

A diffuser plate, comprising: a substrate ( 4 ), wherein an upper surface of the substrate ( 4 ) comprises at least a first concave surface ( 42 ), a lower surface of the substrate ( 4 ) comprises at least a second concave surface ( 41 ); a first base layer ( 5 ) disposed on the upper surface of the substrate ( 4 ); a first scattering particle film layer ( 6 ) disposed on an upper surface of the first base layer ( 5 ); a second base layer ( 3 ) disposed on the lower surface of the substrate ( 4 ); and a second scattering particle film layer ( 2 ) disposed on a lower surface of the second base layer ( 3 ).

Backlight unit and display device

Embodiments of the invention disclose a backlight unit, comprising: a light guide plate, a light source member, a reflection film, wherein: the light guide plate (LGP) comprises a light incident side, a light emission side and a bottom side opposite to the light emission side, the light guide plate is for emitting light entered from the light incident side through the light emission side; the light source member is disposed on the light incident side of the LGP and light emitted by the light source member enters the LGP through the light incident side of the LGP; the reflection film is at least disposed on the bottom side of the LGP and is for reflecting light back into the LGP; wherein a reflection structure is disposed on the bottom side of the LGP and a microstructure is disposed on the light emission side of the LGP.

SURFACE LIGHT SOURCE DEVICE AND EDGE-LIT TYPE BACKLIGHT MODULE

The invention provides a surface light source device and an edge-lit type backlight module. The surface light source device comprises: a luminant, a bottom reflector plate, a light leaking plate and a plurality of side reflector plates, wherein the bottom reflector plate and the plurality of side reflector plates form a light guide box with an upper opening, the luminant is disposed on at least one of the plurality of side reflector plates, the light leaking plate is disposed in the upper opening of the light guide box, such that light from the luminant is transformed into an exiting surface light via the light leaking plate. 1. An surface light source device , comprising: a luminant , a bottom reflector plate , a light leaking plate and a plurality of side reflector plates , wherein the bottom reflector plate and the plurality of side reflector plates form a light guide box with an upper opening , the luminant is disposed on at least one of the plurality of side reflector plates , the light leaking plate is disposed in the upper opening of the light guide box , such that light from the luminant is transformed into an exiting surface light via the light leaking plate.2. The surface light source device according to claim 1 , wherein the plurality of side reflector plates function as peripheral sidewalls of the light guide box and the bottom reflector plate functions as a bottom of the light guide box.3. The surface light source device according to claim 1 , where the light leaking plate is disposed above the bottom reflector plate claim 1 , a surface of the light leaking plate that is opposite to the bottom reflector plate is a total reflection surface claim 1 , and a back surface of the light leaking plate is a diffuse reflection surface.4. The surface light source device according to claim 1 , wherein the light leaking plate is parallel with but separate from the bottom reflector plate.5. The surface light source device according to claim 1 , wherein the light ...

BACKLIGHT MODULE AND DISPLAY DEVICE

According to the present disclosure, there are provided a backlight module and a display device. With the backlight module, a heat dissipating device can be saved, and a light guide plate is prevented from being warped and deformed due to heat generation of a light source. The backlight module comprises a light source, a light guide plate and a side-glowing optical fiber. The side-glowing optical fiber includes: a light emitting section which is fixed to at least one side of the light guide plate; and a light guide section, which extends from the light emitting section to the outside of the light guide plate, and a terminal of which is connected to the light source. 1. A backlight module , comprising:a light source;a light guide plate, one primary surface of which is a light exiting face; anda side-glowing optical fiber;wherein the side-glowing optical fiber comprises a light emitting section and a light guide section, the light emitting section is fixed to at least one side of the light guide plate, the light guide section extends from the light emitting section to the outside of the light guide plate, and a terminal of the light guide section is connected to the light source.2. The backlight module according to claim 1 , wherein claim 1 ,the light source is connected to the terminal of the light guide section of the side-glowing optical fiber through a coupler.3. The backlight module according to claim 1 , wherein claim 1 ,the light emitting section of the side-glowing optical fiber is closely attached to the at least one side of the light guide plate;on one side of the light emitting section of the side-glowing optical fiber which is not in contact with the light guide plate, there is provided a light-tight cladding; andaround the light guide section of the side-glowing optical fiber, there is provided a light-tight cladding.4. The backlight module according to claim 1 , further comprising:a side reflector disposed on a side of the light guide plate, the side ...

Display device

A brightness distribution of light emitted from one specific light source and outputted from the light outputting part of a light-guide part has a characteristic of having a mountain-shaped distribution increasing from a position of the specific light source, then reaching a maximum value, and then decreasing with distance from a specific light source, and a light source adjacent to the specific light source is disposed at a position where a brightness distribution decreases from the maximum value of the brightness distribution.

Lighting Module Having Improved Lighting Uniformity

The present invention relates to a lighting module including at least one strip of light emitting sources, a light guide having a transmitting face arranged to transmit, to an object to be lit, the light emitted by the emitting sources, and a return face facing the transmitting face ( 4 ). The emitting sources are located inside the light guide. According to the invention, the module further includes for each light source, a transmitting reflector associated with this source and having a reflecting face directed towards the transmitting face so that the transmitting reflector associated with this source is located between the transmitting face and an emitting surface of this source arranged for the output out of the source of the light emitted by this source.

Backlight Module, Display Device And Method For Eliminating Hotspot Effect

Disclosed are a backlight module and a display device and method using the same, the backlight module comprises light-guide plate ( 302 ), an optical film ( 303 ) attaching to a side of a light emitting face of the light-guide plate ( 302 ), and a strip-like assembly ( 301 ) of point light source disposed at the side of the light incident face of the light-guide plate ( 302 ), the strip-like assembly ( 301 ) of point light source comprises point light sources toward the light incident face of the light-guide plate ( 302 ) thereon, an edge of one side of the optical film ( 303 ) corresponding to the light incident face of the light-guide plate ( 302 ) is provided with indents ( 303 a ).

Led lighting devices incorporating waveguides

A LED lighting device includes at least one waveguide element and multiple light-emitting sources such as LEDs or LED packages, which may be optically coupled though different light entry regions to the at least one waveguide. Multiple light solid state sources may be arranged in strips. A waveguide system includes first and second body structures each positioned to illuminate at least a portion of a target surface. One or more waveguides may be arranged to illuminate a LCD panel.

Light-emitting module

A light-emitting module includes: a plurality of light sources; and a lightguide plate including a plurality of light source placement sections, in each of which at least one light source is arranged, arrayed in a first direction and a second direction orthogonal to the first direction. The lightguide plate defines at least one first-A light control groove and at least one first-B light control groove that extend parallel to the second direction between a first light source placement section and a second light source placement section adjacent to the first light source placement section in the first direction, and at least one second-A light control groove and at least one second-B light control groove that extend parallel to the first direction between the first light source placement section and a third light source placement section adjacent to the first light source placement section in the second direction.

METHODS OF MAKING A GLASS ARTICLE WITH A STRUCTURED SURFACE

A method of making a glass article, for example a glass light guide plate comprising at least one structured surface including a plurality of channels and peaks. The glass article may be suitable for enabling one dimensional dimming when used in a backlight unit for use as an illuminator for liquid crystal display devices. 1. A method of making a glass article , comprisingdepositing an etch mask on a first major surface of a glass sheet, the etch mask forming a plurality of parallel rows on the first major surface;exposing the glass sheet to an etchant, thereby removing glass from the first major surface of the glass sheet between the plurality of parallel rows, the removing glass forming a plurality of channels in the first major surface of the glass sheet; andremoving the etch mask, the resultant glass article comprising a glass sheet with a plurality of channels formed in the first major surface, at least one channel of the plurality of channels comprising a depth H in a range from about 5 μm to about 300 μm, a width S defined at H/2, and wherein a ratio S/H is in a range from about 1 to about 15.2. The method according to claim 1 , further comprising depositing an adhesion layer on the first major surface prior to depositing the etch mask.3. The method according to claim 2 , wherein the adhesion layer comprises a silane layer or a siloxane layer.46-. (canceled)7. The method according to claim 1 , wherein the etch mask is applied by a screen printing process.8. The method according to claim 7 , wherein the screen printing process comprises a cured emulsion pattern on a surface of a woven screen claim 7 , and a string angle of the woven screen relative to the cured emulsion pattern is in a range from about 20° to about 45°.9. The method according to claim 8 , wherein the woven screen comprises stainless steel wires.10. The method according to claim 1 , wherein the etchant comprises HF.11. The method according to claim 10 , wherein the etchant further comprises HNO ...

SLIM WAVEGUIDE COUPLING APPARATUS AND METHOD

In various embodiments, an illumination structure includes a discrete light source disposed proximate a bottom surface of a waveguide and below a depression in a top surface thereof. A top mirror may be disposed above the discrete light source to convert modes of light emitted from the discrete light source into trapped modes, thereby increasing the coupling efficiency of the illumination structure. 112.-. (canceled)13. An illumination structure comprising:a waveguide having (i) top and bottom opposed surfaces, (ii) an in-coupling region for receiving light, (iii) an out-coupling region for emitting light from the waveguide, and (iv) a depression in the top surface thereof;a plurality of discrete light sources disposed proximate the waveguide and positioned to emit light into the in-coupling region, wherein the depression reflects a first portion of light emitted by the discrete light sources into the waveguide and transmits a second portion of light emitted by the discrete light sources through the depression;disposed over the depression, an absorber for preventing transmission of at least a portion of the second portion of light therethrough; anddisposed between the absorber and the discrete light sources, a phosphor layer for converting a wavelength of light emitted by at least one of the discrete light sources to a different wavelength.14. The illumination structure of claim 13 , wherein the plurality of discrete light sources comprises at least three discrete light sources.15. The illumination structure of claim 13 , wherein the plurality of discrete light sources comprises at least four discrete light sources.16. The illumination structure of claim 13 , wherein at least two of the discrete light sources emit light of substantially the same wavelength.17. The illumination structure of claim 13 , wherein at least two of the discrete light sources emit light of different wavelengths.18. The illumination structure of claim 13 , wherein a thickness of the waveguide ...

Backlight module Comprising Quantum Dot Strips and Liquid Crystal Display Device

A backlight module having quantum dot (QD) strips is provided. The backlight module includes a back bezel, a light guide plate (LGP) disposed on the back bezel, and a light source fixed at one side of the LGP. A QD strip is disposed between the light source and the LGP. A reflective layer is coated on or adheres to partial periphery of the QD strip, an incident opening and an emergent opening are formed on the periphery of the QD strip because of the reflective layer. The incident opening faces towards the light source. The emergent opening faces towards the LGP, and a width of the emergent opening is smaller than a width of the incident opening. The present invention also proposes a liquid crystal display using the backlight module.