OPTICAL DEVICE FOR THE PRODUCTION OF LIGHT IN THE TERAHERTZ FREQUENCY RANGE

Optical imaging system

An optical imaging system including an imaging lens and a spatial light modulator is provided. The imaging system has a position of an aperture stop. The spatial light modulator is disposed at the aperture-stop position of the imaging system to serve as the pupil of the imaging lens. The spatial light modulator is adapted to modulate the light transmittance of the spatial light modulator to deform the aperture stop.

OPTICAL DEVICE WITH ANISOTROPIC LUMINESCENT MATERIAL

КАМЕРА ТРЕХМЕРНОГО ИЗОБРАЖЕНИЯ С ФОТОМОДУЛЯТОРОМ

Камера регистрации трехмерного изображения с картой его глубины, содержащая канал регистрации сцены в видимом диапазоне света и канал регистрации карты глубины, функционирующий в инфракрасном диапазоне при наличии подсветки, матрицы CCD или CMOS, общий объектив, дихроичный светоделитель каналов и расположенные в канале регистрации карты глубины ирисовую диафрагму, коллективную линзу Френеля, модулятор, отличающаяся тем, что модулятор совмещен с коллективом и матрицей, при этом модулятор изготовлен из электрооптического материала в форме комплиментарных тонких гравированных пластин и выполнен с возможностью функционирования в полигармоническом режиме модуляции таким образом, что нормировка карты глубины в канале регистрации карты глубины осуществляется за счет введения временного разделения режимов работы камеры.

ДВУХЧАСТИЧНЫЙ ГРАФИЧЕСКИЙ ДИСПЛЕЙ С ПОЛНЫМ ВНУТРЕННИМ ОТРАЖЕНИЕМ

Illumination device, display device, and television receiver

本发明的目的在于提供将光源集中配置在端部且能部分地控制是否发光的照明装置。本发明的背光源装置(12)具备：并列配置在端部的多个作为光源的LED(17)；导光部(22)，其沿着LED(17)的并列方向(X轴方向)并列配置多个，并且被来自LED(17)的光入射；以及出光部(23)，其沿着与LED(17)的并列方向交叉的方向(Y轴方向)并列配置多个，并且使来自导光部(22)的光出射，在多个出光部(23)中，至少包括：第1出光部(23A)，其相对地配置在LED(17)侧；和第2出光部(23B)，其相对地配置在比第1出光部(23A)靠与LED(17)侧相反的一侧(中央侧)，而在多个导光部(22)中，包括：第1导光部(22A)，其与第1出光部(23A)光学连接；和第2导光部(22B)，其与第2出光部(23B)光学连接。

OPTICAL SWITCHES AND DETECTORS UTILIZING INDIRECT NARROW-GAP SUPERLATTICES AS THE OPTICAL MATERIAL

The present invention relates to novel optical devices operating in the infrared, based on indirect narrow-gap superlattices (INGS) as the active optical materials. The novel optical devices include (1) wideband all-optical switches, which combine small insertion loss at low light intensities with efficient optical switching and optical limiting at high efficiency and low tunneling noise currents, suitable for use in longwave infrared focal plane arrays. INGS comprise multiple semimetal (22) semiconductor (26) layers having compatible crystal symmetry across each heterojunction between a given semimetal (22) sandwiched between semiconductor layers (26). Each semiconductor layer (26) is thin enough that there is coupling between adjacent semiconductor layers (26). The present invention utilizes INGS, which are fabricated to meet the criteria Eindg < eta) < Edirg, especially where eta) < 100 meV, as the optical material for optical switches. The present invention also utilizes INGS as optical ...

Liquid crystal beam polarizer and method for manufacturing thereof

A beam polarizer device for splitting an unpolarized beam of incident radiation into first and second beams of different polarizations. The beam polarizer comprises a birefringent cell interposed between a pair of parallel sides of first and second prisms made of an optically transparent material. The birefringent cell is formed of an oriented organic material having a desired orientation of its optical axis relative to the sides of the prisms enclosing the birefringent cell therebetween. The organic material has substantially different refraction indices n1 and n2 for light components of, respectively, two different orientations of electric fields relative to the direction of propagation of a beam impinging onto the birefringent cell while propagating inside the first prism. The optically transparent material has a refraction index n3 which is substantially equal to the greatest one between the refraction indices n1 and n2.

Optical device and fabrication method thereof

一種光學裝置包括波導元件、反射式光閥及投影鏡頭。波導元件可接收偏振光且包括第一表面、第二表面及光柵。偏振光可依序經過第一表面、光柵和第二表面。反射式光閥可將偏振光轉換為影像光，且影像光可依序通過波導元件的第二表面、第一光柵和投影鏡頭。

Optical device and display apparatus

An optical device and a display apparatus of the present invention are constructed so as to improve display characteristics of output light intensity, display contrast, and reduction of scattered light due to external light, and also to provide a large-screen. The optical device has a first stacked body and a plurality of second stacked bodies. The first stacked body includes a light guide, a fist electrode, and an optical control layer. The second stacked body includes a plurality of second electrodes, the reflection film and a substrate. A plurality of third electrodes are provided through the substrate. Each of the third electrode has a first end part connecting to the second electrode and a second end part exposed to the other side of the substrate. A further light absorption film may be disposed between the reflection film and the second electrode.

LIGHTING DEVICE, DISPLAY DEVICE, AND TELEVISION RECEIVER

A lighting device includes light sources arranged at an end, light guide portions arranged along an arrangement direction of the light sources and receiving light from the light sources, and light output portions arranged along a direction crossing the arrangement direction and exiting light from the light guide portions. The light output portions include at least a first light output portion and a second light output portion. The first light output portion is arranged relatively close to the light sources and the second light output portion is arranged relatively farther from the light sources with respect to the first light output portion. The light guide portions include at least a first light guide portion and a second light guide portion, and the first light guide portion is optically connected to the first light output portion and the second light guide portion is optically connected to the second light output portion.

Optical device and display apparatus

An optical device characterized by comprising a light transmissive plate-shaped light guide (154) for guiding light incident from an end surface, an optical control layer (150) provided on a lower surface of said plate-shaped light guide through a transparent electrode (151) provided as a first electrode, a reflection film (152) provided on a lower surface of said optical control layer, a second electrode (153) provided on a lower surface of said reflection film, and a substrate (155) provided on a lower surface of said second electrode, wherein said optical control layer changes in scattering degree or diffraction efficiency by an electric field applied by said first electrode and said second electrode.

A MULTISERVICE OPTICAL SWITCH

A time division multiplexed optical switching system switches a signal from an ingress port to an egress port. The system comprises an optical switching fabric, ingress and egress line cards and a switch control fabric. The optical switching fabric routes an optical signal from one of M ingress fibers to one of N egress fibers. The ingress line card is coupled between the ingress port and the optical switching fabric for receiving the signal at the ingress port. The ingress line card comprises a buffer for storing the ingress signal and transmits the signal to the optical switching fabric. The egress line card is coupled between the egress port and the optical switching fabric for receiving the optical signal from the egress fiber of the optical switching fabric. The egress line card comprises a buffer for storing the optical signal and transmits the signal to the egress port. The switch control fabric allots time slots to the ingress line card for transmitting to the optical switching ...

КАМЕРА ТРЕХМЕРНОГО ИЗОБРАЖЕНИЯ С ФОТОМОДУЛЯТОРОМ

FIELD: physics. SUBSTANCE: camera for capturing a 3D image with a depth map thereof, having a scene recording channel in the visible light range and a depth map recording channel operating in the infrared range upon illumination, CCD or CMOS matrices, a common lens, a dichroic channel beam splitter, and an iris diaphragm, a collective Fresnel lens and a modulator in the depth map recording channel, wherein the modulator is merged with the collective and the matrix, said module being made from electro-optic material in form of complementary thin engraved plates and can operate in polyharmonic modulation mode such that normalisation of the depth map in the depth map recording channel is performed by introducing time division of operating modes of the camera. EFFECT: minimising the number of elements in the 3D camera in order to miniaturise the camera and simplifying the circuit of the photomodulator without reducing efficiency of using effective power of optical radiation. 6 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 431 876 (13) C2 (51) МПК G02B 5/30 (2006.01) H04N 13/02 (2006.01) H04N 5/225 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2008151036/09, 24.12.2008 (24) Дата начала отсчета срока действия патента: 24.12.2008 (56) Список документов, цитированных в отчете о поиске: US 7224384 B1, 29.05.2007. US 6611367 B1, 26.08.2003. US 7006132 B2, 28.02.2006. WO 2007007998 A1, 18.01.2007. PR 2741960 A3, 06.06.1997. RU 2179336 C1, 10.02.2002. RU 2257603 C2, 27.07.2005. 2 4 3 1 8 7 6 R U (54) КАМЕРА ТРЕХМЕРНОГО ИЗОБРАЖЕНИЯ С ФОТОМОДУЛЯТОРОМ (57) Реферат: Изобретение относится к области оптических приборов, и в частности к фото/видеокамерам для получения трехмерных (3D) изображений. Техническим результатом является минимизирование числа элементов в 3D камере для миниатюризации конструкции камеры и упрощение схемы фотомодулятора без снижения эффективности использования полезной ...

Patent RU2017123975A3

Композитные материалы с высоким коэффициентом преломления для отражательных дисплеев

A multiservice optical switch

DISPLAY UNIT

A display unit comprising a liquid crystal layer (12) having mutually opposing first main surface and second main surface, a plurality of electrodes (14a and 14b), a fluorescent substance layer provided on the first main surface side of the liquid crystal layer, and a lighting device that emits light to excite the fluorescent substance layer toward the second main surface of the liquid crystal layer, wherein the liquid crystal layer forms, when a specified voltage is applied, an intermediate layer containing liquid crystal molecules oriented in a direction different from that of liquid crystal molecules in an anchoring layer in the vicinity of the second main surface, refracts a linear polarization passed through the anchoring layer toward the second main surface within or in the vicinity of the intermediate layer, and displays using light emitted from the fluorescent substance layer with no voltage applied to the liquid crystal layer or displays black with voltage applied to the liquid ...

POLARIZATION INDEPENDENT FULL DUPLEX OPTICAL SWITCH

An optical switch (100) for connecting an array of M optical channels to an array (104) of N optical channels includes a polarizing beam splitter (106) to separate a signal in each of the M optical channels into first and second orthogonally polarized signal components and a first patterned polarization rotator (108) for receiving the orthogonally polarized components from the polarizing beam splitter and rotating the polarization of one of the components in each signal, such that the first and second components in each signal have the same polarization. A first switch matrix (110) for receiving the same-polarized components from the first patterned polarization rotator selectively routes each signal to one of N paths, while a second switch matrix (114) receives the signals from the first switch matrix and selectively routes each signal to one of M paths. A second patterned polarization rotator receives the signals from the second switch matrix and rotates one of the polarized components ...

Optical switch using total internal reflection and a method of switching signals using the same

An optical switch is disclosed. The optical switch includes an optical signal transmitting electro-optic crystal having at least one first portion and at least one second portion. At least one of these portions is formed from a material which exhibits a change in index refraction upon the application of an electric field and the first and second portions define a switching interface therebetween. A signal source is provided for emitting a signal along an unguided beam path through the crystal, the unguided beam path intersecting the switching interface at an incident angle. An electric field generator is provided for generating an electrical field in at least one of the first and second portions of the crystal with the electrical field causing a change in an index of refraction for at least one of the first and second portions sufficient to create a critical angle at the interface smaller than the incident angle to reflect the signal off the interface. Thus, by switching the electric field generator off and on, the interface switches between being transparent and reflective to the optical signal to alter the unguided beam path through the crystal. A method of switching using such an electro-optic crystal is also disclosed.

ДВУХЧАСТИЧНЫЙ ГРАФИЧЕСКИЙ ДИСПЛЕЙ С ПОЛНЫМ ВНУТРЕННИМ ОТРАЖЕНИЕМ

FIELD: image forming devices.SUBSTANCE: invention relates to the field of displays. Totally internally reflective image display comprises front and rear assemblies, a low-refractive medium in the free gap, a number of positively and negatively charged particles dispersed having electrophoretic mobility, dispersed in the low refractive medium. Front assembly has a front plate, a front electrode and a dielectric layer, wherein the front electrode is located between the front plate and the dielectric layer, and the front plate further comprises at least one convex protrusion. Rear assembly forms a free gap with the front assembly, wherein the rear assembly has having a backplane and a rear electrode, and the rear electrode is opposite the dielectric layer.EFFECT: display provides DC balance and compatibility with conventional electronic excitation devices.20 cl, 10 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 676 394 C2 (51) МПК G02F 1/167 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК G02F 1/167 (2018.08); G02B 26/005 (2018.08); G09G 3/344 (2018.08) (21)(22) Заявка: 2016144468, 12.05.2015 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): КЛЕАРИНК ДИСПЛЕЙЗ, ИНК. (US) Дата регистрации: 28.12.2018 2012057218 A1, 08.03.2012. US 8040594 B2, 18.10.2011. 12.05.2014 US 61/992,095 (43) Дата публикации заявки: 13.06.2018 Бюл. № 17 (45) Опубликовано: 28.12.2018 Бюл. № 1 (86) Заявка PCT: C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 12.12.2016 US 2015/030349 (12.05.2015) (87) Публикация заявки PCT: 2 6 7 6 3 9 4 WO 2015/175518 (19.11.2015) R U 2 6 7 6 3 9 4 (56) Список документов, цитированных в отчете о поиске: US 6215920 B1, 10.04.2001. US Приоритет(ы): (30) Конвенционный приоритет: R U 12.05.2015 (72) Автор(ы): ЛОУ Шон (CA), ПУЛЛЕН Энтони И. (US) Адрес для переписки: 191036, Санкт-Петербург, а/я 24, "НЕВИНПАТ" (54) ДВУХЧАСТИЧНЫЙ ГРАФИЧЕСКИЙ ДИСПЛЕЙ С ПОЛНЫМ ...

Patent RU2016144468A3

POLARIZATION OPTICAL DEVICE AND LIQUID CRYSTAL DISPLAY MODULE

PROBLEM TO BE SOLVED: To provide a liquid crystal display module containing a device capable of effectively increasing optical utilization rate of the liquid crystal display module. SOLUTION: A polarization optical device comprises a thin film including a first refractive layer and a second refractive layer having refractive index different from that of the first refractive layer, a first prism which is disposed on a lower surface of the thin film to abut the first refractive layer and a second prism which is disposed on an upper surface of the thin film. The first and second prisms are symmetrical with respect to the thin film. The liquid crystal display module equipped with the polarization optical device is also provided. Incident light can be divided into an S-ray and a P-ray by thin film interference and brightness can be enhanced by reutilizing the S-ray. COPYRIGHT: (C)2006,JPO&NCIPI ...

OPTICAL SWITCH COMPRISED OF ELECTRO-OPTIC CRYSTAL BASED ON TOTAL INTERNAL REFLECTION

Total internal reflection (TIR) is a well-known phenomenon/property of interaction between light wave and the interface formed by two types of optical materials. This feature has found many applications in optical engineering. As the reflective index of one material is changed through a controlled approach, the TIR condition may not be maintained and the light propagation path will be changed from a TIR manner to a transmission manner, or vice verse. This allows an optical switch to be built. There are a number of different ways to alert the reflective index of the materials under consideration. In this invention, a unique combination of process and method for electro-optic material manipulation and control is used to generate a structure for alerting the reflective index of one material, which forms an interface, or multiple interfaces to function as controllable TIR interfaces. This leads to a novel solution of TIR based optical switch design. Such a switch can operate over a wide range of spectrum. A properly designed optical switch based on this invention also operates independently from wavelengths and polarization of the incident light.

A MULTISERVICE OPTICAL SWITCH

A time division multiplexed optical switching system switches a signal from an ingress port to an egress port. The system comprises an optical switching fabric, ingress and egress line cards and a switch control fabric. The optical switching fabric routes an optical signal from one of M ingress fibers to one of N egress fibers. The ingress line card is coupled between the ingress port and the optical switching fabric for receiving the signal at the ingress port. The ingress line card comprises a buffer for storing the ingress signal and transmits the signal to the optical switching fabric. The egress line card is coupled between the egress port and the optical switching fabric for receiving the optical signal from the egress fiber of the optical switching fabric. The egress line card comprises a buffer for storing the optical signal and transmits the signal to the egress port. The switch control fabric allots time slots to the ingress line card for transmitting to the optical switching fabric.

HYBRID REFLECTIVE-EMISSIVE IMAGE DISPLAY

WAVEGUIDE TYPE HIGH DENSITY OPTICAL MATRIX SWITCHES

An optical matrix switch includes connection optical waveguides, a 2×2 optical switch including two straight optical waveguides which are parallel to each other, two crossing optical waveguides which connects the insides of the straight optical waveguides and mutually intersects in an X shape, and electrodes which are disposed on portions where the straight optical waveguide and the crossing optical waveguide are connected. The connection optical waveguides include a straight connection optical waveguide which connects one of the straight optical waveguides of one of the 2×2 optical switches in one column and a straight optical waveguide of a 2×2 optical switch in the same row of an adjacent column, and a crossing connection optical waveguide which connects the other of the straight optical waveguides with a straight optical waveguide of 2×2 optical switch in the other row of an adjacent column ...

Optical system of display

There is provided an optical system of a display constituted of: a light conducting plate introduced with light; and a panel portion provided to oppose to one plate surface of the light conducting plate; the panel portion including a driving part arranged with actuator parts each corresponding to a plurality of pixels so as to control displacement motions of the actuator parts in the contacting/separating directions to/from the light conducting plate correspondingly to attributions of input image signals, thereby controlling leaked light-beams in predetermined regions of the light conducting plate, to thereby cause the light conducting plate to display an image corresponding to the image.

Display unit

The display device according to the present invention includes: a liquid crystal layer 12 having a first principal face and a second principal face opposing each other; a plurality of electrodes 14a and 14b; a fluorophore layer provided on the first principal face side of the liquid crystal layer; and an illuminator for emitting light for exciting the fluorophore layer toward the second principal face of the liquid crystal layer. When a predetermined voltage is applied, the liquid crystal layer forms an intermediate layer containing liquid crystal molecules which are oriented in a different direction from that of liquid crystal molecules in an anchoring layer near the second principal face, and causes linearly-polarized light which has been transmitted through the anchoring layer near the second principal face to be refracted toward the second principal face in or near the intermediate layer. Displaying is conducted by using light emitted by the fluorophore layer while no voltage is applied ...

System and method for providing temperature control for a thermally activated optical switch using constant total power

An optical switching device (46; 94; 98) and a method of providing temperature control for the device utilize compensating thermal energy to maintain a consistent operating temperature. The optical switching device may be a thermally activated optical switch that routes optical signals using bubbles that are strategically created along optical paths (58, 60, 62, 64, 66, 68, 70 and 72) within the device. The bubbles are created by thermal energy generated by switching heating elements (84). The compensating thermal energy may be generated by at least one compensating heating element (86A, 86B, 86C and 86D; 100) or by at least one switching heating element that is not currently being used for optical switching, i.e., bubble creation. The compensating thermal energy is varied so that total thermal energy generated by the device is constant, which results in a consistent operating temperature. In a first embodiment, the device includes additional heating elements (86A, 86B, 86C and 86D) that are selectively activated to generate the compensating thermal energy. In a second embodiment, the compensating thermal energy is generated by all of the switching heating elements along one or more optical paths that are in a transmission mode. In a third embodiment, the device includes a single additional heating element (100) that is supplied with a variable electrical power to generate the compensating thermal energy.

OPTICAL DEVICE WITH ANISOTROPIC LUMINESCENT MATERIAL

LIGHT UNIT AND DISPLAY DEVICE COMPRISING THE SAME

IMAGING METHOD COMPRISING DRIVING A TOTAL INTERNAL REFLECTION LIGHT VALVE

An imaging method includes emitting radiation from an illumination source towards a total internal reflection (TIR) modulator. At least one of the pixel regions is controlled to form at least one image pixel on a surface. A first electric potential (Vxl) is imposed on a first pixel region, the first electric potential being associated with a first signal provided by a first electrical conductor (328A) a first set of electrodes (315) associated with the first pixel region, the first electrical conductor extending over a first non-pixel region. A second electric potential (Vyl) is imposed on the first pixel region, the second electric potential being associated with a second signal provided by a second electrical conductor (328B) to a second set of electrodes (316) associated with the first pixel region, the second electrical conductor extending over a second non-pixel region, wherein the second non-pixel region is different from the first non-pixel region, and the second electric potential ...

Multi-chip light emitting diode unit, and backlight unit and liquid crystal display device employing the same

A multi-chip light emitting diode unit, and a backlight unit and a liquid crystal display device employing the same, are provided. The multi-chip light emitting diode unit includes: a base; a plurality of light emitting elements which are arranged on the base and irradiate at least two wavelengths of light; and a cap which is provided at an upper side of each of the plurality of the light emitting elements, made of a material having a greater refractive index than an adjacent external medium, and which totally internally reflects the light emitted from the light emitting elements.

System and method for providing temperature control for a thermally activated optical switch using constant total power

An optical switching device (46; 94; 98) and a method of providing temperature control for the device utilize compensating thermal energy to maintain a consistent operating temperature. The optical switching device may be a thermally activated optical switch that routes optical signals using bubbles that are strategically created along optical paths (58, 60, 62, 64, 66, 68, 70 and 72) within the device. The bubbles are created by thermal energy generated by switching heating elements (84). The compensating thermal energy may be generated by at least one compensating heating element (86A, 86B, 86C and 86D; 100) or by at least one switching heating element that is not currently being used for optical switching, i.e., bubble creation. The compensating thermal energy is varied so that total thermal energy generated by the device is constant, which results in a consistent operating temperature. In a first embodiment, the device includes additional heating elements (86A, 86B, 86C and 86D) that ...

OPTICAL SWITCHES AND DETECTORS UTILIZING INDIRECT NARROW-GAP SUPERLATTICES AS THE OPTICAL MATERIAL

The present invention relates to novel optical devices operating in the infrared, based on indirect nar-row-gap superlattices (INGS) as the active optical materials. The novel optical devices include (1) wideband all-optical switches, which combine small insertion loss at low light in-tensities with efficient optical switch-ing and optical limiting at high effi-ciency and low tunneling noise cur-rents, suitable for use in longwave in-frared focal plane arrays. INGS comprise multiple semimetal (22) semiconductor (26) layers having compatible crystal symmetry across each heterojunction between a given semimetal (22) sandwiched between semiconductor layers (26). Each semiconductor layer (26) is thin enough that there is coupling be-tween adjacent semiconductor layers (26). The present invention utilizes INGS, which are fabricated to meet the criteria Eindg < ?.omega. < Edirg, especially where ?.omega. < 100 meV, as the optical material for optical switches. The present inven-tion also utilizes INGS as optical detectors if they are fabricated such that Eindg < Edirg < ?.omega., especially where ?.omega. is less than 100 meV.

Optical imaging system

BROAD WAVELENGTH RANGE CHEMICALLY-TUNABLE PHOTONIC MATERIALS

The present invention provides polymeric materials arranged as photonic crystals, or portions of photonic crystals, having properties which can be easily tuned over a large range of wavelengths upon exposure to an external stimulus. In some embodiments, the photonic crystals comprise at least one portion which can undergo a change in a physical, chemical, dielectric, or other property upon exposure to an altering stimulus, resulting in a change in a diffracted wavelength of electromagnetic radiation (e.g, light) by the photonic crystal. Embodiments of the invention may advantageously exhibit large stop band tunability and rapid response times. Photonic crystals of the invention may be useful in a wide variety of applications, such as colorimetric sensors, active components of simple display devices, electrically controlled tunable optically pumped laser, photonic switches, multiband filters, and the like.

Optical switching element, optical switching device, and color image displaying apparatus

An optical switching element includes a resonant reflection element and a driving unit. The resonant reflection element has a thickness portion functioning as a waveguide layer, with one surface in a thickness direction functioning as a total reflection surface and the other surface having formed thereon a fine periodic structure with fine asperities, the resonant reflection element resonant-reflecting light that is incident from the other surface and has a specific wavelength component. The driving unit varies a resonant wavelength of resonant refection by varying at least one of a shape and a refractive index of the resonant reflection element.

Optical communication device provided with a reflector and method for forming a reflector in an optical communication device

An optical communication device of the invention includes a reflector for reflecting the light that has reached one end surface of a waveguide chip to turn the optical path of the light. The reflector includes a transparent thin film layer formed on one end surface of the waveguide chip by using a material to which a metal that forms an intermetallic compound or the like with Au is added to a substance that is transparent to the light that propagates through the waveguide, as well as an Au thin film layer formed on the front surface of the transparent thin film layer. This allows formation of a reflector having an Au thin film layer as a reflecting surface in an optical medium with high adhesion strength. Thus, an optical communication device can be provided having a high reliability with little loss.

Display panel and display device having the same

A display panel and display device having the same are provided. The display panel includes a quantum dot color filter layer configured to convert a color of light; a transparent front substrate provided at a first side of the quantum dot color filter layer; and a low refractive layer provided between the quantum dot color filter layer and the front substrate, the low refractive layer having a refractive index that is lower than a refractive index of the quantum dot color filter layer.

TERAHERTZ WAVE GENERATING APPARATUS AND TERAHERTZ WAVE GENERATING METHOD

A terahertz wave generating apparatus includes an excitation light source for outputting an excitation light at a predetermined wavelength, an optical crystal being excited by an irradiation with the excitation light in order to generate a terahertz wave and terahertz wave amplifying means for repeatedly performing an optical parametric amplification for the terahertz wave by use of the excitation light, wherein the terahertz wave amplifying means includes an optical waveguide having the optical crystal serving as a core and a medium serving as a clad whose refractive index is smaller than a refractive index of the optical crystal, and the inputted excitation light is propagated within the optical waveguide with fulfilling a condition for a total reflection.

Displaced porous electrode for frustrating tir

Color conversion substrate, display device, and color conversion substrate fabricating method

A color conversion substrate includes a main plate having a first main surface and including a transparent substrate, and a fluorescent material layer including a light scattering layer formed at the first main surface for scattering incident light and emitting the light outside, and having a hole formed, and a fluorescent material body formed in said hole, exhibiting luminescence emission when light of an incident wavelength region is incident. The inner surface of the light scattering layer defining the hole reflects the light from the fluorescent material body output from the fluorescent material body towards the main plate.

Method and apparatus for generating terahertz wave

A method and an apparatus for generating a terahertz wave, wherein one end face 12a of a non-linear optical crystal 12 is positioned approximately orthogonally to a direction of generation of a terahertz wave 4, pump light 2 and idler light 3 are totally reflected at an approximately same point 13 on the end face, and the generated terahertz wave 4 is emitted roughly vertically to the end face.

Optical device and display apparatus

Optical device and display apparatus

Optical waveguide system has substrate with warmed-up strip region, from which gradients of refractive index gradient field extend

A refractive index gradient field extends diagonally with respect to a wave path (26) in a substrate (10). The gradients of the gradient field extend from a warmed-up strip region of the substrate, into the interior of substrate.

전면발광 반-역반사 디스플레이를 위한 방법 및 장치

... 본 개시는 일반적으로 투명하고 선택적인 방출 광 지향성을 갖는 전면발광 디스플레이에 관한 것이다. 개시된 반-역반사, 반경면 및 경면 디스플레이는 광 출력의 비-램버시안 특성을 보존하는 방식으로 광을 반사시키는 지향성 전면 광 시스템을 포함한다. 이와 같은 상황은 다량의 광이 관찰자를 향해 다시 반사되지 않는 실질적인 램버시안 반사율을 갖는 종래의 마이크로캡슐화 전기영동 디스플레이와 비교하여 더 높은 정도의 휘도를 갖는 더 밝은 디스플레이를 초래한다.

Optical modulator and method of manufacturing same

Laser light emitted from a vertically confined surface emitting laser (VCSEL) is incident on a side surface near an end region of an optical waveguide. The end region of the optical waveguide is processed by polishing to taper at an angle of 45 degrees, and an optical modulator is formed on the polished surface. The optical modulator is a Fabry-Perot modulator using a linear electro-optical effect. The modulator has a thick transparent electro-optical layer which is deposited by using an aerosol deposition method.

Display apparatus with particular light control and light reflecting

The present invention is directed to the provision of a high-contrast display apparatus. The display apparatus of the present invention includes a light source, a display section having an electro-optical conversion device for transmitting or scattering light introduced from the light source, light control means for reflecting the light introduced from the light source at a prescribed reflection angle, and a light reflecting member for causing the light reflected by the light control means and transmitted through the electro-optical conversion device to be reflected outside the field of view of a viewer who is viewing the display section straight on.

Light scattering display having a structured solid state selectivity reflective layer formed inside the display cell

A display device having a selectively reflective layer inside the display cell is described. By incorporating the selectively reflective layer inside the display cell itself, enhanced reflectivity is produced from the scattering state, but the problem of parallax is substantially avoided.

System und Verfahren zur Temperaturregelung für einen thermisch gesteuerten optischen Schalter mit konstanter Gesamtleistung

Liquid crystal display and method of controlling the same

Tunable optical filter based upon liquid crystal cell and wavelength sweeping method

A tunable optical filter, includes a light source configured to emit optical radiation to a sample; an input optical element configured to receive optical radiation reflected from the sample; a liquid crystal cell comprising electrodes, the liquid crystal cell contacting the input optical element; an output optical element, contacting the liquid crystal cell; and a control unit adapted to apply a preset voltage to the liquid crystal cell via the electrodes; wherein the input optical element and the output optical element have a same first refractive index, wherein, when voltage is not applied to the liquid crystal cell, the first refractive index is greater than a second refractive index of the liquid crystal cell for a wavelength range of incident optical radiation, and wherein the input optical element, the liquid crystal cell and the output optical element are tilted at an angle to the incident optical radiation.

OPTICAL DEVICE WITH ANISOTROPIC LUMINESCENT MATERIAL

An optical device (1) is provided. The optical device comprising a switenable layer (2) at least one alignment layer (6) a light guiding system (5), whereas the switchable layer (2) comprises a luminescent material (3) for absorbing and emitting light, whereby the alignment of the luminescent material (3) is changeable and the light guiding system (5) guides the emitted light, whereby the switchable layer (2) is in contact with the at least one alignment layer (6) and the luminescent material (3) exhibits anisotropic properties, whereby the optical device (1) comprises a light energy-converting means (7), wherein the light guiding system (5) is in physical contact with the energy converting means (7).

High refractive index composites for reflective displays

OPTICAL MODULATOR AND IMAGE RECORDING DEVICE

An optical modulator (3) includes a thin plate-like member formed by a material with the refraction index changed in response to an electric field, and a base unit (31) in which light is incident into the inside from its edge surface. On a main surface (311) of the base unit (31), an electrode (33) with electrode elements disposed along a disposing direction perpendicular to a light propagating direction is formed, the supply of a voltage between the electrodes causes a periodical refraction index change along the disposing direction in the inside of the base unit (31), and light propagating the inside of the base unit (31) is diffracted. The base unit (31) of the optical modulator (3) is thin to cause incident light multiple reflection on both main surfaces (311, 312), so that a light phase change can be brought about substantially over the entire area where the electrode (33) is formed with respect to the light propagating direction and so that a voltage supplied between the electrode ...

Optical switch

In an optical switch, a carrier-accumulating layer in which injected carriers are accumulated is provided on a semiconductor substrate having a waveguide formed thereon so that injected effective carriers tend to be accumulated in an effective part, and the burden on a driving circuit is thus reduced to realize high-speed operation. At the same time, when a clad on the carrier injection side, of clad layers formed on both sides of the waveguide, is a second clad layer, and a clad on the substrate side is a first clad layer, a third clad layer is formed on the first clad layer to reduce propagation loss in the waveguide.

DRIVING METHODS FOR TIR-BASED IMAGE DISPLAYS

Optical states in TIR-based image displays may be modulated by movement of electrophoretically mobile particles into and out of the evanescent wave region at the interface of a high refractive index convex protrusions and a low refractive index medium. The movement of particles into the evanescent wave region may frustrate TIR and form dark states at pixels. Movement of particles out of the evanescent wave region may allow for TIR of incident light to form bright states at pixels. The movement of the particles may be controlled by employing the drive methods of pulse width modulation, voltage modulation or a combination thereof.

Optical device and display apparatus

An optical device and a display apparatus of the present invention are constructed so as to improve display characteristics of output light intensity, display contrast, and reduction of scattered light due to external light, and also to provide a large-screen. The optical device has a first stacked body and a plurality of second stacked bodies. The first stacked body includes a light guide(230), a first electrode(231), and an optical control layer(232). The second stacked body includes a plurality of second electrodes(234), the reflection film(233) and a substrate (235). A plurality of third electrodes(237) are provided through the substrate(235). Each of the third electrode has a first end part connecting to the second electrode and a second end part exposed to the other side of the substrate. A further light absorption film(236) may be disposed between the reflection film and the second electrode.

DRIVING METHODS FOR TIR-BASED IMAGE DISPLAYS

BROAD WAVELENGTH RANGE CHEMICALLY-TUNABLE PHOTONIC MATERIALS

The present invention provides polymeric materials arranged as photonic crystals, or portions of photonic crystals, having properties which can be easily tuned over a large range of wavelengths upon exposure to an external stimulus. In some embodiments, the photonic crystals comprise at least one portion which can undergo a change in a physical, chemical, dielectric, or other property upon exposure to an altering stimulus, resulting in a change in a diffracted wavelength of electromagnetic radiation (e.g, light) by the photonic crystal. Embodiments of the invention may advantageously exhibit large stop band tunability and rapid response times. Photonic crystals of the invention may be useful in a wide variety of applications, such as colorimetric sensors, active components of simple display devices, electrically controlled tunable optically pumped laser, photonic switches, multiband filters, and the like.

Display device and electronic device having same

Disclosed in various examples of the present invention are a display device and an electronic device having the same, the display device comprising: a display element; and a guide unit arranged on the display element, wherein the guide unit guides a propagation pathway of the light emitted from the display element. The display device and the electronic device having the same can provide a comfortable viewing environment by using the guide unit so as to guide the propagation pathway of the light emitted from the display element. The display device and the electronic device having the same can be variously implemented according to the examples.

다중-전극 내부 전반사 이미지 디스플레이

... 종래의 내부 전반사 이미지 디스플레이는 단일 전하의 이동 입자로 이루어지고 두 개의 상이한 광학 상태로 이루어지는 정보를 디스플레이할 수 있다. 여기서 설명된 반사 이미지 디스플레이 실시예는 다중 전극 어레이와 조합하여 상이한 전하 상태 및 광학 특성의 입자를 포함한다. 이는 적어도 3개의 상이한 광학 상태로 이루어지는 정보를 디스플레이하는 것을 허용할 수 있다.

THREE-DIMENSIONAL DISPLAY

Three-dimensional displays are described using electrophoresis or electro-wetting media to modulate the total internal reflection of light in a waveguide.

Light scattering display having a structured solid state selectivity reflective layer formed inside the display cell

A display device having a selectively reflective layer inside the display cell is described. By incorporating the selectively reflective layer inside the display cell itself, enhanced reflectivity is produced from the scattering state, but the problem of parallax is substantially avoided.

RESETTABLE OPTICAL FUSE

The three-dimensional display

本文公开了三维显示器，该三维显示器包括：波导，包括粒子的电泳调制元件或者包括流体微滴的电润湿调制元件，以及被配置为控制电场以调制波导中的光的全内反射的驱动装置。

Terahertz wave generating element and terahertz wave detecting element

OPTICAL DEVICE

An optical device includes a waveguide device, a reflective-type light valve and a projection lens. The waveguide device receives a first polarized beam and includes a first surface, a second surface and the first grating. The first grating is disposed in a path of the first polarized beam to change a propagation direction of the first polarized beam, and the first polarized beam passes through the first surface, the first grating and the second surface in succession. The reflective-type light valve is disposed downstream from the second surface of the waveguide device to convert the first polarized beam into an image beam. The projection lens is disposed downstream from the reflective-type light valve, and the image beam passing through the second surface of the waveguide device, the first grating and the projection lens in succession.

Three-dimensional display

Three-dimensional displays are described using electrophoresis or electro-wetting media to modulate the total internal reflection of light in a waveguide.

전면발광 반-역반사 디스플레이를 위한 방법 및 장치

... 본 개시는 일반적으로 투명하고 선택적인 방출 광 지향성을 갖는 전면발광 디스플레이에 관한 것이다. 개시된 반-역반사, 반경면 및 경면 디스플레이는 광 출력의 비-램버시안 특성을 보존하는 방식으로 광을 반사시키는 지향성 전면 광 시스템을 포함한다. 이와 같은 상황은 다량의 광이 관찰자를 향해 다시 반사되지 않는 실질적인 램버시안 반사율을 갖는 종래의 마이크로캡슐화 전기영동 디스플레이와 비교하여 더 높은 정도의 휘도를 갖는 더 밝은 디스플레이를 초래한다.

Display device and electronic device having same

本发明的各种实施例中公开的是显示装置及包括该显示装置的电子装置，所述显示装置包括：显示元件；及引导单元，布置在所述显示元件上，其中，所述引导单元引导从所述显示元件发射的光的传播路径。所述显示装置和包括该显示装置的电子装置可通过使用引导单元以引导从显示元件发射的光的传播路径而提供舒适的观看环境。所述显示装置和包括该显示装置的电子装置可根据示例以各种方式实现。

A MULTISERVICE OPTICAL SWITCH

A time division multiplexed optical switching system switches a signal from an ingress port to an egress port. The system comprises an optical switching fabric, ingress and egress line cards and a switch control fabric. The optical switching fabric routes an optical signal from one of M ingress fibers to one of N egress fibers. The ingress line card is coupled between the ingress port and the optical switching fabric for receiving the signal at the ingress port. The ingress line card comprises a buffer for storing the ingress signal and transmits the signal to the optical switching fabric. The egress line card is coupled between the egress port and the optical switching fabric for receiving the optical signal from the egress fiber of the optical switching fabric. The egress line card comprises a buffer for storing the optical signal and transmits the signal to the egress port. The switch control fabric allots time slots to the ingress line card for transmitting to the optical switching ...

DISPLAY UNIT

A display unit comprising a liquid crystal layer (12) having mutually opposing main surfaces, a plurality of electrodes (14a and 14b), and a lighting device that emits light toward one main surface of the liquid crystal layer, wherein the liquid crystal layer forms, when a specified voltage is applied, an intermediate layer (12b) containing liquid crystal molecules oriented in a direction different from that of liquid crystal molecules in an anchoring layer (12a), refracts a linear polarization passed through the anchoring layer (12a) toward the above one main surface within or in the vicinity of the intermediate layer (12b), and displays white with no voltage applied to the liquid crystal layer or displays black with voltage applied to the liquid crystal layer.

TRANSFLECTIVE FILM AND DISPLAY

A transflective optical film reflects ambient light incident on the first surface and transmits light having a preferred polarization state incident on the opposite surface. The film has a substrate wherein a plurality of tapered cavities extends from a first surface of the substrate toward an opposite surface, the tapered cavities narrowing toward the opposite surface, and a filler material deposited within each the tapered cavity. A reflective layer is deposited on the filler material in each tapered cavity, along the first surface of the substrate. At least one of the substrate and the filler material is birefringet such that for a preferred polarization state, the refractive index of the filler is substantially lower than the refractive index of the filler is substantially lower than the refractive index of the substrate and that, for the polarization state orthogonal to the preferred polarization state, the refractive index of the filler is substantially the same as the refractive ...

異方性の発光材料を有する光学装置

... 光学装置(1)が提供される。光学装置(1)は、スイッチング層(2)と、少なくとも1つの配向層(6)と、光ガイドシステム(5)と、を備え、スイッチング層(2)は、その配向が可変な、光の吸収および光の放射のための発光材料(3)を含んでおり、光ガイドシステム(5)は放射光をガイドするものであり、スイッチング層(2)は少なくとも1つの配向層(6)と接触しており、発光材料(3)は異方性を有しており、光学装置(1)は、光ガイドシステム(5)と物理的に接触している光エネルギ変換手段(7)を備えている。 ...

2-입자 내부 전반사 이미지 디스플레이

... 반대 전하의 제1 하전 입자 및 제2 하전 입자를 갖는 내부 전반사 이미지 디스플레이가 개시되어 있다. 영이 아닌 전압을 인가함으로써, 입자는 이동되어 내부 전반사를 프러스트레이팅하여 어두운 상태를 생성한다. 0의 전압 및/또는 전압 펄싱을 인가함으로써, 광이 내부 전반사되어 밝은 상태를 생성한다. 디스플레이는 DC 밸런스되어 통상의 구동 전자기기와 호환가능하다. 다색 디스플레이는 상이한 광학 특성을 갖는 제1 및 제2 입자를 사용하여 생성될 수 있다.

Wavelength tuning an external cavity laser without mechanical motion

A method of tunable wavelength filtering without requiring mechanical motion is provided. The method comprises receiving a light beam of wavelength within a range of wavelengths, dispersing the light beam at a wavelength-dependent angle, and propagating the light beam through an electro-optic device including an electrically-variable refractive index electro-optic element. The method further comprises applying a control voltage to the electro-optic device, causing tunable wavelength filtering dependent on the control voltage.

Ge-Si quantum well structures

Si-Ge quantum wells where the well material has a lowest conduction band energy minimum at k=0 (the Gamma point of the first Brillouin zone) are provided. Quantum well structures that satisfy this condition have "Kane-like" bands at and near k=0 which can provide physical effects useful for various device applications, especially optical modulators. In the Si1-xGex material system, this condition on the band structure is satisfied for x greater than about 0.7. The quantum well barrier composition may or may not have Kane-like bands. A preferred method of providing such quantum well structures on a substrate (e.g., a silicon substrate) is to grow a first Ge-rich Si-Ge buffer layer on the substrate, and then anneal the resulting layered structure. In many cases it is further preferred to grow a second Ge-rich Si-Ge buffer layer on top of the first buffer layer and anneal the resulting layered structure.

SAW optical modulators with sense transducers

An electro-holographic light field generator device comprises surface acoustic wave (SAW) optical modulators arranged in different directions. Specifically, some embodiments have SAW modulators arranged in pairs, nose-to-nose with each other, and have output couplers that provide face-fire light emission. These SAW modulators also possibly include SAW sense transducers and/or viscoelastic surface material to reduce crosstalk.

Illumination system comprising beam shaping element

LIQUID CRYSTAL DISPLAY DEVICE

광의 이용 효율을 향상시키고, 또한 시각 특성이 우수한 배면광을 구비한 액정 표시 장치를 제공한다. 대향 배치된 적어도 한쪽에 전극을 갖는 한쌍의 기판 SUB1, SUB2 사이에 협지된 액정층으로 이루어지는 액정 패널과, 액정 패널을 끼우도록 배치된 상부 편광판 POL2 및 하부 편광판 POL1과, 액정 패널을 배면으로부터 조명하는 조명 광원 BL을 적어도 구비하고, 액정 패널과 조명 광원 BL 사이에 조명 광원으로부터의 출사광이 액정 패널에 입사할 때의 반사율을 제어하는 광학 필름 부재 ARF를 개삽하였다.

반사율이 증가된 내부 전반사 기반 이미지 디스플레이

... 종래의 내부 전반사 이미지 디스플레이의 휘도(brightness)는 백색 상태의 암 동공 영역을 통과하는 입사광으로 인해 감소할 수 있다. 투명 전방 시트 상의 볼록 돌출부의 표면에 서브-파장 구조체를 부가하는 것은 백색 상태에서의 휘도를 증가시킬 수 있다. 서브-파장 구조체의 크기, 간격, 형상 및 굴절률의 제어는 0차 반사(zeroth order reflection) 및 향상된 휘도를 유도할 수 있다.

Liquid crystal display device

There is provided a liquid crystal display device with backlight which improves the utilization factor of the light and is superior in viewing angle characteristic. This liquid crystal display device is at least provided with a liquid crystal panel, comprising a liquid crystal layer held between a pair of substrates SUB1, SUB2 placed facing each other, at least one of them having an electrode; an upper polarizing plate POL2 and a lower polarizing plate POL1 which are arranged so as to hold the liquid crystal panel in between; a lighting source BL which illuminates the liquid crystal panel from the rear side; and an optical film member ARF, which controls the reflectance of outgoing light from the lighting source made incident on the liquid crystal panel, inserted between the liquid crystal panel and the lighting source BL.

AN OPTICAL SWITCH USING TOTAL INTERNAL REFLECTION AND A METHOD OF SWITCHING SIGNALS USING THE SAME

An optical switch (100) includes an optical signal transmitting electro-optic crystal (200) having at least one first portion (204) and at least one second portion. At least one of these portions is formed from a material which exhibits a change in index refraction upon the application of an electric field and the first and second portions define a switching interface (205) therebetween. A signal source is provided for emitting a signal along an unguided beam path (203), the unguided beam path intersecting the switching interface at an incident angle. An electric field generator generates an electrical field in at least one of the first and second portions of the crystal with the electrical field causing a change in an index of refraction for at least one of the first and second portions sufficient to create a critical angle at the interface smaller than the incident angle to reflect the signal off the interface.

DISPLAY DEVICE

It is possible to provide a display device having a high contrast. The display device includes a light source, a display unit having an electrophoto conversion element for transmitting or scattering the light incident from the light source, light control means for reflecting the light incident from the light source with a predetermined reflection angle, and a light reflection member for reflecting the light which has been reflected by the light control means and has passed through the electrophoto conversion element to outside of a field of view of a user viewing from the front.

OPTICAL SYSTEM OF DISPLAY

An optical system of a display comprises a rectangular light guide plate into which light is inputted and a drive unit opposed to one face of the light guide plate and having actuators arrayed in positions corresponding to a plurality of pixels. Further provided is a panel unit for displaying a video corresponding to the image signal on the light guide plate by controlling the displacements of the actuator units in directions in which the actuator units come into/out of contact with the light guide plate in accordance with the attributes of the inputted image signal and thereby controlling leaking light from a predetermined portion of the light guide plate.

Liquid crystal display and method of controlling the same

A liquid crystal display and control method thereof, having a liquid crystal display panel, a light emitting diode device which is disposed on the rear of the liquid crystal display panel and which is divided into a plurality of partitioned areas that are capable of being driven independently, a light guide part disposed for each of the partitioned areas, an image calculating part for dividing the liquid crystal display panel into a plurality of regions and calculating the brightness of each region by using image data, and an inverter and an inverter controller to provide differentiated power to the partitioned areas based on the calculated brightness.

Light reflector for use in a reflective-type liquid-crystal display

A light reflector for use in a reflective-type liquid-crystal display has a prism sheet, which is made from a transparent base material, the front surface of which has formed on it a light-diffusing layer that diffuses incident light and the reverse side of which has a plurality of unit prisms that are arranged in a striped arrangement and made of an optically transparent resin, these prisms extending in a vertical direction, and having a cross-section that is the shape of a scalene triangle, and also has a light-reflecting sheet that is in opposition to the group of prisms on the rear surface of the prism sheet, the opposing surface of this light-reflecting sheet reflecting transmitted light and being disposed in parallel to the prism sheet, so that incident light and exiting light are not mutually parallel, thereby achieving both a wide viewing angle and a bright display.

SHAPE DEPENDENT CONVEX PROTRUSIONS IN TIR-BASED IMAGE DISPLAYS

Brightness in total internal reflection image displays comprising of a color filter array may be enhanced by tuning the size and shape of the convex protrusions. Each protrusion or group of two or more protrusions may be aligned with a color filter sub-pixel such as red, green or blue, and with a thin film transistor. Each protrusion or group of two or more protrusions may be tuned to a specific size and shape with respect to the color filter sub-pixel it may be aligned with on a pixel by pixel basis. This may enhance the reflectance at the wavelength matching the desired color of the respective pixel. 1. A total internal reflection (TIR) display , comprising:a transparent front sheet;a color filter layer further comprising a sub-pixel adjacent the front sheet, the color filter sub-pixel substantially allowing rays of a primary wavelength band to pass through;a protrusion extending away from the transparent front sheet;a rear electrode positioned to form a cavity with the transparent front sheet; andwherein the protrusion extending from the transparent front sheet is configured to maximize internal reflectance within the primary wavelength band.2. The TIR display of claim 1 , wherein the protrusion extending from the transparent front sheet is shaped to maximize internal reflectance of the primary wavelength band.3. The TIR display of claim 1 , wherein the protrusion extending from the transparent front sheet is sized to maximize internal reflectance of the primary wavelength band.4. The TIR display of claim 1 , wherein the color filter layer comprises one or more color filter sub-pixels with transmission wavelength bands corresponding to the color red claim 1 , green claim 1 , blue claim 1 , clear claim 1 , white claim 1 , cyan claim 1 , magenta claim 1 , and yellow.5. The TIR display of claim 1 , further comprising a front electrode adjacent the front sheet claim 1 , the front electrode and the rear electrode biased to form an electric field therebetween.6. The ...

Multi-stage optical switching device

An optical switching device contains an active stage coupled to a passive stage. The index of refraction in the active stage is variable to change the entry direction of a light beam into the passive stage, which has a fixed index of refraction. Because the light beam can enter the passive stage at different angles, the exit direction of the light beam from the passive stage can be changed. The resulting optical switch allows switching without any mechanical components.

Optical switching element, optical switching device, and color image displaying apparatus

An optical switching element includes a resonant reflection element (11) and a driving unit (12, 14). The resonant reflection element (11) has a thickness portion functioning as a waveguide layer, with one surface in a thickness direction functioning as a total reflection surface and the other surface having formed thereon a fine periodic structure with fine asperities, the resonant reflection element resonant-reflecting light that is incident from the other surface and has a specific wavelength component. The driving unit (12, 14) varies a resonant wavelength of resonant refection by varying at least one of a shape and a refractive index of the resonant reflection element (11).

MULTI-CHIP LIGHT EMITTING DIODE UNIT HAVING A REDUCED THICKNESS, A BACKLIGHT UNIT HAVING THE SAME, AND AN LCD HAVING THE SAME

PURPOSE: A multi-chip light emitting diode unit, a backlight unit having the same, and an LCD having the same are provided to reduce the space for mixing lights at the outside of the light emitting diode unit, thereby reducing the entire thickness of the light emitting diode unit, by using a cap for totally reflecting the lights emitted from plural light emitting diodes. CONSTITUTION: A multi-chip light emitting diode unit(15) comprises a base(7) and a plurality of light emitting diodes(5) arranged on the base. The light emitting diodes emits lights having at least two wavelength ranges. A cap(10) is disposed above the plurality of light emitting diodes. The cap is formed of a material having a larger refractive index than an adjacent outside material, and totally reflects the lights emitted from the light emitting diodes. © KIPO 2006 ...

Illumination system comprising beam shaping element

The invention relates to an illumination system ( 10 ) comprising a light emitting device ( 20 ) and a beam shaping element ( 30 ) for generating an angular distribution (φ) of the light emitted from the illumination system. The beam shaping element is configured for recycling at least a part of the light emitted from a light emitting surface ( 26 ) of the light emitting device via reflection back towards the light emitting surface. The illumination system further comprises a diffuser ( 40, 42 ) arranged substantially parallel to the light emitting surface for diffusing at least part of the recycled light. The diffuser is constituted of a translucent diffuser ( 40 ) and/or a diffusely reflective electrode layer ( 42 ) of the light emitting device. Limiting the angular distribution by recycling light, using the beam shaping element for recycling light via reflection, reduces glare when the illumination system is used in general lighting applications. The diffuser avoids that the recycled light is confined between the beam shaping element and the light emitting surface of the light emitting element. The recycling is preferably done via total internal reflection at the beam shaping element. The presence of the diffuser improves the efficiency of the illumination system.

MULTI-ELECTRODE TOTAL INTERNAL REFLECTION IMAGE DISPLAY

Conventional total internal reflection image displays consist of mobile particles of a single charge and capable of displaying information consisting of two different optical states. The reflective image display embodiments described herein comprises particles of different charge states and optical characteristics in combination with multi-electrode arrays. This may allow for displaying information consisting of at least three different optical states. 1. A method to display an image , comprising:receiving one or more incoming light rays at a first surface of a transparent front sheet, the front sheet having a refractive index;forming a first optical state by directing a plurality of first electrophoretically mobile particles to a region adjacent the first electrode and directing a plurality of second electrophoretically mobile particles to a region adjacent a second and a third electrodes;forming a second optical state by directing the plurality of second electrophoretically mobile particles to the region adjacent the first electrode and directing the plurality of first electrophoretically mobile particles to the region adjacent the second and the third electrodes; andforming a third optical state by directing the plurality of first electrophoretically mobile particles to a region adjacent the second electrode and directing the second plurality of electrophoretically mobile particles to a region adjacent the third electrode.2. The method of claim 1 , wherein the first optical state further comprises substantially or selectively absorbing the one or more incoming light rays by the plurality of first electrophoretically mobile particles thereby exhibiting the optical characteristic of the first electrophoretically mobile particles.3. The method of claim 1 , wherein the second optical state further comprises substantially or selectively absorbing the one or more incoming light rays by the plurality of second electrophoretically mobile particles thereby exhibiting the ...

Display Panel and Driving Method Thereof

Embodiments of the present disclosure provide a display panel and a driving method thereof. The display panel includes a first substrate and a second substrate which are aligned and assembled into a cell, wherein the first substrate includes a first base body, a total internal reflection structure and a first electrode are provided at a side of the first base body facing to the second substrate, and the second substrate includes a second base body and a second electrode which is provided at a side of the second base body facing to the first substrate. The display panel further includes cholesteric liquid crystal provided between the first and second substrates, charged light-absorbing particles are mixed in the cholesteric liquid crystal, and a refractive index of the cholesteric liquid crystal is smaller than each of refractive indexes of the total internal reflection structure and the light-absorbing particles.

Hybrid reflective-emissive image display

Reflective image displays use minimal power but have limited use in low ambient conditions. Emissive image displays are intrinsically reflective and must use significantly more power in high ambient light conditions to optimize the image quality which greatly limits the battery life. To date no single display technology has been able to provide excellent image quality in all ambient lighting conditions. The embodiments described herein involves the efficient hybridization of controlled reflection with controlled efficient emission to improve both the practicality and the overall performance of the display.

Display panel

A display panel includes a display device, a light-guiding structure and an anti-reflection structure. The light-guiding structure is disposed between the pixels to guide light beams emitted from the pixels toward a display surface. The anti-reflection structure is over the pixels of the display device, wherein the anti-reflection structure includes a photo-sensitive alignment layer, a liquid crystal circular polarizer and a linear polarizer. The photo-sensitive alignment layer is over the optical absorbing layer, wherein the photo-sensitive alignment layer is sensitive to and curable by the light within the wavelength range. The liquid crystal circular polarizer is over the photo-sensitive alignment layer, wherein the liquid crystal circular polarizer includes a plurality of liquid crystal molecules aligned by the photo-sensitive alignment layer. The linear polarizer is over the liquid crystal circular polarizer.

Display apparatus and backlight module

A display apparatus and a backlight module are disclosed. The backlight module includes a light emitting assembly, configured to generate display lights; and a light guiding plate, configured to transmit the display lights to the display panel. The light guiding plate is divided into reflective areas and transmission areas; each medium in the reflective areas has a refractive index greater than that of each medium in the transmission areas. In this application, two media with different refractive indices are provided in the light guiding plate. In this way, the utilization rate of the energy of the back light source may be improved, the consumption of the display may be reduced, the power may be saved and the battery life of the display apparatus may also be extended.

DRIVING METHODS FOR TIR-BASED IMAGE DISPLAYS

Optical states in TIR-based image displays may be modulated by movement of electrophoretically mobile particles into and out of the evanescent wave region at the interface of a high refractive index convex protrusions and a low refractive index medium. The movement of particles into the evanescent wave region may frustrate TIR and form dark states at pixels. Movement of particles out of the evanescent wave region may allow for TIR of incident light to form bright states at pixels. The movement of the particles may be controlled by employing the drive methods of pulse width modulation, voltage modulation or a combination thereof. 1. A method to control movement of an electrophoretically mobile particle in a medium interposed between a front electrode and a rear electrode of a TIR display , the front electrode having a plurality of semi-hemispherical protrusions , the method comprising:applying a first drive voltage to cause movement of the electrophoretically mobile particle from the front electrode towards the rear electrode for a first duration;maintaining the first drive voltage for a second duration;applying a second drive voltage to cause movement of the electrophoretically mobile particle from the rear electrode towards the front electrode for a third duration;maintaining the third drive voltage for a fourth duration;wherein the steps of applying the first drive voltage and the second drive voltage causes the electrophoretically mobile particle to move into and out of the evanescent wave region in a TIR-based display.2. The method of claim 1 , wherein the first drive voltage is in a range of about −15V to 15V and wherein the second voltage is in the range of about 15V to −15V.3. The method of claim 1 , wherein the second duration is substantially longer than the fourth duration.4. The method of claim 1 , wherein the second duration is substantially equal to the fourth duration.5. The method of claim 1 , wherein the second duration is substantially shorter than ...

METHOD AND APPARATUS FOR AN ENHANCED BRIGHTNESS TIR IMAGE DISPLAY

Brightness in conventional total internal reflection image displays may decrease due to incident light passing through the dark pupil region in the white state. Certain embodiments of the disclosure relate to an enhanced brightness total internal reflection-based image display utilizing a front sheet having an array of modified hemispherical protrusions with a partially light reflective surface. Modifying the structure of the convex protrusions of the transparent front sheet and adding a light reflective layer on specific areas of the protrusions may increase brightness in the white state. Controlling the size, depth and angle of the structure of the convex protrusions may direct incident light by one or more of total internal reflection and specular reflection in a controllable manner to enhance brightness of the display. 1. A structure for a Totally Internally Reflective (TIR) display , comprising:a transparent front sheet having a top surface and a bottom surface, the top surface defining a substantially planar surface and the bottom surface comprising a plurality of adjacent protrusions with at least one protrusion defining a cavity;wherein each cavity further comprises, at least partially, a coating on the exposed surface of the cavity, the coating comprising one or more light-reflecting materials; andwherein the walls of the cavity are angled to provide specular reflection of an incoming ray of light from the transparent front sheet.2. The structure of claim 1 , wherein at least one cavity is configured to receive at least one electrophoretically mobile particle.3. The structure of claim 1 , further comprising a transparent front electrode associated with the transparent front sheet.4. The structure of claim 3 , wherein the transparent front electrode further comprises one or more of indium tin oxide (ITO) claim 3 , an electrically conductive polymer or conductive nano-particles dispersed in a polymer.5. The structure of claim 3 , wherein the cavity of at ...

DISPLAY DEVICE

A display device including: a first substrate; a second substrate facing the first substrate; a light-amount adjusting layer interposed between the first substrate and the second substrate; and a backlight unit disposed under the first substrate, wherein the second substrate includes a plurality of color conversion layers respectively disposed on a plurality of pixel regions, the color conversion layer includes a partition wall; and a phosphor disposed on areas defined by the partition wall, and the color conversion layer includes an air layer between the second substrate and the phosphor. 1. A display device comprising:a first substrate;a second substrate facing the first substrate;a light-amount adjusting layer interposed between the first substrate and the second substrate, the light-amount adjusting layer including a blocking member defining boundaries of a plurality of pixels; anda color conversion layer disposed between the light-amount adjusting layer and the second substrate, the color conversion layer comprising a partition wall, a phosphor disposed on areas defined by the partition wall, and a low-refractive index layer disposed between the second substrate and the phosphor,wherein the partition wall overlaps the blocking member.2. The display device of claim 1 , wherein the color conversion layer is disposed on a bottom surface of the second substrate.3. The display device of claim 1 , wherein the partition wall comprises a reflective surface configured to reflect light toward the outside.4. The display device of claim 1 , wherein the phosphor comprises a scattering particle.5. The display device of claim 1 , wherein the phosphor comprises at least one of a red phosphor claim 1 , a green phosphor claim 1 , and a blue phosphor.6. The display device of claim 1 , wherein the phosphor comprises a quantum dot particle.7. The display device of claim 1 , further comprising a second polarizer disposed on the second substrate claim 1 , the second substrate being ...

DISPLAY PANEL AND DRIVING AND MANUFACTURING METHOD THEREOF, AND DISPLAY DEVICE

A display panel and a driving method and manufacturing method thereof, and a display device. The display panel includes a base substrate, a dielectric layer provided on the base substrate, and a refractive index variable layer provided on a side of the dielectric layer away from the base substrate; the refractive index variable layer is in contact with the dielectric layer and has a contact surface with the dielectric layer, and the refractive index variable layer can change the refractive index so that the light entering from the light incident side is totally reflected or transmitted at the contact surface. 1. A display panel , comprising:a base substrate;a dielectric layer disposed on the base substrate; anda refractive index variable layer disposed on a side of the dielectric layer away from the base substrate,wherein a side of the refractive index variable layer away from the base substrate is a light incident side; the refractive index variable layer is in contact with the dielectric layer and has a contact surface with the dielectric layer, and the refractive index variable layer is configured to change a refractive index thereof so that light entering from the light incident side is totally reflected or transmitted at the contact surface.2. The display panel according to claim 1 , further comprising:a color filter layer disposed on a side of the dielectric layer away from the refractive index variable layer,wherein the color filter layer includes a black filter and/or a chromatic filter for display.3. The display panel according to claim 2 , further comprising:a reflective layer disposed on a side of the color filter layer away from the dielectric layer.4. The display panel according to claim 1 , further comprising:an electric field providing layer configured to generate an electric field,wherein the refractive index variable layer is configured to change the refractive index under driving of the electric field generated by the electric field providing layer ...

Method and apparatus for a dry particle totally internally reflective image display

A total internal reflection image display comprised of dry electrostatically mobile particles composed of a solid material stably floating as a dispersant in a gas and exhibiting a high fluidity in an aerosol state may be sealed between the transparent sheet capable of total internal reflection such as comprising a plurality of transparent convex or hemi-spherical protrusions and the rear support, partition walls and the dry particles may be moved by application of a voltage bias. A method of manufacture is described comprising of the steps of forming partition walls, filling with dry particles, sealing the particles into cells or compartments.

INCREASED REFLECTANCE IN TOTAL INTERNAL REFLECTION-BASED IMAGE DISPLAYS

Brightness in conventional total internal reflection image displays may decrease due to incident light passing through the dark pupil region in the white state. Adding sub-wavelength structures to the surface of the convex protrusions on the transparent front sheet may increase brightness in the white state. Control of the size, spacing, shape and refractive index of the sub-wavelength structures may lead to zeroth order reflection and enhanced brightness. 1. A display front sheet , comprising:a transparent layer having a first surface and a second surface, the second surface positioned opposite the first surface, the second surface having a plurality of convex protrusions extending away from the first surface at least one protrusion having a dark pupil region; andstructures positioned on the surface of the convex protrusions, the structures protruding away from a second surface of the transparent layer.2. The display front sheet of claim 1 , further comprising an electrode layer conformally disposed over the second surface of the transparent layer.3. The display front sheet of claim 1 , further comprising a dielectric layer conformally disposed over the electrode layer.4. The display front sheet of claim 1 , wherein at least one of the structures has a width of substantially equal or less than an incident light's wavelength.5. The display front sheet of claim 1 , wherein the structures are separated by a distance of substantially equal or less than an incident light's wavelength.6. The display front sheet of claim 1 , wherein one of the plurality of the convex protrusions extending away from the first surface defines a hemisphere.7. A reflective image display claim 1 , comprising:a transparent layer having a first surface and a second surface, the second surface positioned opposite the first surface and the second surface having a plurality of convex protrusions extending away from the first surface, at least one protrusion having a dark pupil region;structures ...

Optical device having reverse mode holographic PDLC and front light guide

An optical device and a display apparatus of the present invention are constructed so as to improve display characteristics of output light intensity, display contrast, and reduction of scattered light due to external light, and also to provide a large-screen. The optical device has a first stacked body and a plurality of second stacked bodies. The first stacked body includes a light guide, a fist electrode, and an optical control layer. The second stacked body includes a plurality of second electrodes, the reflection film and a substrate. A plurality of third electrodes are provided through the substrate. Each of the third electrode has a first end part connecting to the second electrode and a second end part exposed to the other side of the substrate. A further light absorption film may be disposed between the reflection film and the second electrode.

Multi-chip light emitting diode unit, backlight unit and liquid crystal display employing the same

멀티칩 발광 다이오드 유닛, 이를 채용한 백라이트 유닛 및 액정표시장치가 개시되어 있다. Disclosed are a multichip light emitting diode unit, a backlight unit employing the same, and a liquid crystal display device. 이 개시된 발광 다이오드 유닛은, 베이스; 상기 베이스 상에 배열되어 적어도 두 개의 파장 범위의 광을 조사하는 복수 개의 발광 소자; 상기 복수 개의 발광 소자의 상부에 배치되고, 인접한 외부 매질보다 큰 굴절률을 가지는 재질로 구성되어 상기 발광 소자로부터 방출되는 광을 전반사시키는 캡;을 포함하는 것을 특징으로 한다. The disclosed light emitting diode unit includes a base; A plurality of light emitting devices arranged on the base to irradiate light in at least two wavelength ranges; And a cap disposed on the plurality of light emitting devices, the cap being made of a material having a larger refractive index than an adjacent external medium to totally reflect the light emitted from the light emitting devices.

Multi-electrode internal total reflection image display

종래의 내부 전반사 이미지 디스플레이는 단일 전하의 이동 입자로 이루어지고 두 개의 상이한 광학 상태로 이루어지는 정보를 디스플레이할 수 있다. 여기서 설명된 반사 이미지 디스플레이 실시예는 다중 전극 어레이와 조합하여 상이한 전하 상태 및 광학 특성의 입자를 포함한다. 이는 적어도 3개의 상이한 광학 상태로 이루어지는 정보를 디스플레이하는 것을 허용할 수 있다.

Thin Film Light Unit

본 발명은 초박막 라이트 유닛에 관한 것이다. 본 발명에 의한 초박막 라이트 유닛은, 고 굴절 필름, 제1 부재, 제2 부재, 제3 부재 및 광원을 포함한다. 고 굴절 필름은 일측에 구비된 경사부와, 경사부로부터 타측으로 연장되고 일정 두께를 갖는 평판부가 구비된다. 제2 부재는 경사부의 상부에서 일측에 제1 폭을 갖는다. 제1 부재는 평판부의 상부에서 타측의 중앙부에 제2 부재와 일정 거리 이격된다. 제3 부재는 평판부의 상부에서 제1 폭을 갖는다. 광원은 평판부의 측면에서 제1 부재와 인접하여 배치된다. The present invention relates to an ultra-thin light unit. An ultra-thin light unit according to the present invention includes a high refractive film, a first member, a second member, a third member, and a light source. The high refractive film is provided with an inclined portion provided on one side, and a flat portion extending from the inclined portion to the other side and having a predetermined thickness. The second member has a first width on one side of the upper portion of the inclined portion. The first member is spaced apart from the second member by a predetermined distance from the upper portion of the flat plate portion to the central portion of the other side. The third member has a first width at the top of the flat plate portion. The light source is disposed adjacent to the first member at a side surface of the flat plate portion.

Optical device with anisotropic luminescent material

提供一种光学器件(1)。所述光学器件包括可切换层(2)、至少一个对准层(6)、光导引系统(5)，其中所述可切换层(2)包括用于吸收和发射光的发光材料(3)，从而所述发光材料(3)的对准可变，并且所述光导引系统(5)导引所发射的光，从而所述可切换层(2)与所述至少一个对准层(6)接触，并且所述发光材料(3)呈现各向异性特性，从而所述光学器件(1)包括光能量转换装置(7)，其中所述光导引系统(5)与所述能量转换装置(7)物理接触。

Backlight module and display device

本发明实施例提供一种背光模组及显示装置，涉及显示技术领域，能够减小液晶显示器的侧边框的尺寸，实现液晶显示器的窄边框结构。该背光模组包括导光板，至少一个导光结构，每个导光结构包括第一导光元件和第二导光元件，每个导光结构对应至少一个激光器；第一导光元件位于导光板的背光侧，至少一个激光器位于第一导光元件远离导光板的一侧，至少一个激光器发出的入射到第一导光元件的激光以全反射方式向第一导光元件出光侧方向传播；第二导光元件的出光侧与导光板的入光侧接触，第二导光元件的入光侧与第一导光元件的出光侧接触，第二导光元件用于将第一导光元件中传播的激光导入导光板。本发明实施例提供的背光模组，用于液晶显示器的背光源。

Display device and method for manufacturing same

提供了一种显示器以及制造该显示器的方法，其中能抑制设置在遮光层里侧的树脂层的固化不良。透明基板（30）被来自侧表面（30B）侧的光（L）照射，使得来自侧表面（30B）或其附近的光（L）进入透明基板（30）并在透明基板（30）中被引导。在光（L）的波长范围内折射率低于透明基板（30）的折射率的中间层（40）设置在透明基板（30）的前表面（30A）上，使得光（L）被全反射。在透明基板（30）的里表面（30C）上，在固化前的树脂（21）和固化后的树脂（21）的折射率在光（L）的波长范围内均高于透明基板（30）的折射率。因此，光（L）进入树脂（21）以固化树脂（21），并形成树脂层（20）。结果，抑制了遮光层（50）里侧的树脂层（20）的固化不良，并且抑制了未固化的树脂的液体泄漏以及非显示区域（B）及其附近的框状显示不均匀等。

Bistable enhancement in total internal reflection image displays

全内反射图像显示器配备有双稳态增强粒子相互作用层。双稳态增强层赋予显示器在0V或断电时的双稳态。双稳态增强层可以在0V或断电时将粒子保持在前电极处的消逝波区域中的表面附近以保留暗态图像。粒子相互作用层可以在0V或断电时将粒子保持在后电极表面附近以保留明亮状态图像。对粒子密度的控制提高了双稳态性。

Method and apparatus for front-lit semi-retro-reflective display

본 개시는 일반적으로 투명하고 선택적인 방출 광 지향성을 갖는 전면발광 디스플레이에 관한 것이다. 개시된 반-역반사, 반경면 및 경면 디스플레이는 광 출력의 비-램버시안 특성을 보존하는 방식으로 광을 반사시키는 지향성 전면 광 시스템을 포함한다. 이와 같은 상황은 다량의 광이 관찰자를 향해 다시 반사되지 않는 실질적인 램버시안 반사율을 갖는 종래의 마이크로캡슐화 전기영동 디스플레이와 비교하여 더 높은 정도의 휘도를 갖는 더 밝은 디스플레이를 초래한다. This disclosure relates generally to a front emission display having a transparent and selective emission directivity. The disclosed semi-retroreflective, radial, and mirror-surface displays include a directional front light system that reflects light in a manner that preserves the non-lambda cyan characteristics of the light output. This situation results in a brighter display with a higher degree of brightness compared to conventional microencapsulated electrophoretic displays with substantial Lambertian reflectance where large amounts of light are not reflected back toward the viewer.

Increased reflectivity in image displays based on total internal reflection

因为入射光在白色状态下通过黑瞳区域，所以传统全内反射图像显示器中的亮度可能降低。将亚波长结构添加到透明前板上的凸形突起的表面可以增加白色状态下的亮度。控制亚波长结构的尺寸、间隔、形状、和折射率可以产生零阶反射和增强的亮度。

Light reflecting plate for reflective liquid crystal pannel

본 발명의 반사형 액정패널용 광반사판(30)은 투명기재시트(32)의 표면(32A)에 입사광을 확산하는 광확산층(34)을 형성하고, 이면(32B)에는 광학적으로 투명한 수지로 구성된 스트라이프 형상의 복수의 단위 프리즘(36)을 수직방향으로 연장하여 배열하고 있고, 상기 단위 프리즘(36)은 그 단면이 부등변 삼각형상인 프리즘 시트(38)와, 프리즘 시트(38)의 이면(32B)측의 프리즘군에 대향하여 그 대향면이 투과광을 반사하는 광반사 시트(40)가 프리즘 시트(38)와 평행으로 배치되어 있고, 입사광과 출사광이 평행이 되지 않고, 또한 넓은 시야각도와 높은 휘도가 얻어져, 반사형 액정패널용 광반사판의 시야각을 넓히고 휘도가 높으며 보기 쉬워지는 것을 특징으로 한다.

Electronic paper and preparation method thereof

本发明提供一种电子纸及其制备方法，属于显示技术领域。本发明的电子纸，包括相对设置的第一基板和第二基板，以及设置在第一基板和第二基板之间的像素隔离挡墙；像素隔离挡墙将电子纸分隔出多个像素单元；每个像素单元包括设置在第一基板上的第一电极，设置在二基板上的第二电极，以及设置在第一电极和第二电极之间的带电粒子；电子纸还包括设置在第一基板靠近第二基板一侧的微结构；其中，每个像素单元中的第一电极和第二电极根据被施加电压的情况，控制带电粒子是否与微结构接触；且在带电粒子未与微结构接触时，来自外界的光线在照射至微结构后能够发生全内反射。

Method for manufacturing liquid crystal display device

本发明公开了一种液晶显示设备的制作方法，其包含有：制作一阵列基板，所述阵列基板包含一玻璃层以及一金属层；制作一彩色滤光片基板；利用一框胶，固定所述阵列基板与所述彩色滤光片基板，所述框胶位于所述金属层以及所述黑色阵列区域之间；以及利用一激光点光源，并藉由激光的指向性，调整激光的照射角度，使激光仅照射到所述阵列基板上对应所述框胶的区域，以藉由所述阵列基板的所述金属层，将热能传导至所述框胶，以对所述框胶进行热预固化。由于本发明使用点光源，只照射框胶的对应区域，因此，本发明无须采用掩膜板，进而节省了成本。

Optical element having electrically controllable refractive index

An optical element having a variable index of refraction. The optical element utilizes a layer of a transparent dielectric material having an index of refraction determined by the concentration of hydrogen in the dielectric material. A layer of a hydrogen reservoir medium that includes a material that acts as a source or a sink for hydrogen is placed adjacent to the transparent dielectric layer. The reservoir medium accepts hydrogen from the transparent layer in response to a first electric field being applied across the transparent layer and reservoir layer and donates hydrogen to the transparent layer in response to a second electric field being applied across the transparent layer and the reservoir layer. The electric fields are generated by applying appropriate potentials across first and second electrodes that sandwich the dielectric and reservoir layers. The preferred reservoir material is KOH. The transparent dielectric material preferably includes a material chosen from the group consisting of hydrides of an alkali, alkaline-earth, rare-earth metals, and alloys thereof.

Display device and electronic device including the same

Disclosed in various embodiments of the present invention are a display device and an electronic device including the same, the display device including: a display element; and a guide unit disposed on the display element, wherein the guide unit guides a propagation path of light emitted from the display element. The display device and the electronic device including the same may provide a comfortable viewing environment by using a guide unit to guide a propagation path of light emitted from a display element. The display device and the electronic device including the same may be implemented in various ways according to examples.

Multi-electrode total internal reflection image display

Multi-chip light emitting diode unit, backlight unit and liquid crystal display employing the same

멀티칩 발광 다이오드 유닛, 이를 채용한 백라이트 유닛 및 액정표시장치가 개시되어 있다. 이 개시된 발광 다이오드 유닛은, 베이스; 상기 베이스 상에 배열되어 적어도 두 개의 파장 범위의 광을 조사하는 복수 개의 발광 소자; 상기 복수 개의 발광 소자의 상부에 배치되고, 인접한 외부 매질보다 큰 굴절률을 가지는 재질로 구성되어 상기 발광 소자로부터 방출되는 광을 전반사시키는 캡;을 포함하는 것을 특징으로 한다.

Polarization optical device and liquid crystal display module utilizing the same

Broad wavelength range tunable photonic materials

The present invention provides polymeric materials arranged as photonic crystals, or portions of photonic crystals, having properties which can be easily tuned over a large range of wavelengths upon exposure to an external stimulus. In some embodiments, the photonic crystals comprise at least one portion which can undergo a change in a physical, chemical, dielectric, or other property upon exposure to an altering stimulus, resulting in a change in a diffracted wavelength of electromagnetic radiation (e.g, light) by the photonic crystal. Embodiments of the invention may advantageously exhibit large stop band tunability and rapid response times. Photonic crystals of the invention may be useful in a wide variety of applications, such as colorimetric sensors, active components of simple display devices, electrically controlled tunable optically pumped laser, photonic switches, multiband filters, and the like.

Display device using a color conversion layer to display colors

A display device including: a first substrate; a second substrate facing the first substrate; a light-amount adjusting layer interposed between the first substrate and the second substrate; and a backlight unit disposed under the first substrate, wherein the second substrate includes a plurality of color conversion layers respectively disposed on a plurality of pixel regions, the color conversion layer includes a partition wall; and a phosphor disposed on areas defined by the partition wall, and the color conversion layer includes an air layer between the second substrate and the phosphor.

Display device

Method and apparatus for preceding half retroreflection display of light

本披露总体上涉及一种具有透明的和选择性发射的光定向的前光显示器。该披露的半后向反射显示器、半镜面显示器和镜面显示器包括多个定向前光系统，这些定向前光系统用一种保留了光输出的非朗伯特性的方式对光进行反射。在具有基本上朗伯反射系数的常规的微囊化电泳显示器中，很多光没有被反射回朝向观看者，与之相比，本披露引出具有更高照明度的更亮的显示器。

Liquid crystal display

An LCD(Liquid Crystal Display) is provided to make a displayed picture of the LCD have various LED(Light Emitting Diode) luminances to easily control the luminances of portions of the picture. An LCD includes an LCD panel(100), LEDs(440), light guides(451), an image calculator, an inverter, and a inverter controller. The LEDs are arranged behind the LCD panel and divided into a plurality of regions independently driven. The light guides are located respectively corresponding to the divided regions of the LEDs and guide light emitted from the LEDs to the LCD panel. The image calculator divides the LCD panel into a plurality of portions and calculates the luminance of the each portion from video data. The inverter supplies power to the LEDs. The inverter controller controls the inverter to form power to the respective portions of the LCD panel based on the calculated luminance.

Photo switching component·photo switching device·multi-wavelength photo switching component·multi-wavelength photo switching device·color photo switching component·color photo switching device·photo switching component array·multi-wavelength photo switching component array·color photo switching component array·image display·multi-color display and color display

회절 격자와 광의 파장에 의한 근점이각(Anomaly) 현상을 원리적으로 이용한 종래에 없는 신규의 광스위칭 소자를 실현한다. A novel optical switching element, which has not been conventionally made using the diffraction grating and the anomaly phenomenon due to the wavelength of light in principle, is realized. 광스위칭소자(1)는, 두께 부분이 도파층으로 기능하고, 두께 방향의 일면은 전반사면으로 기능하고, 타면은 미세한 요철에 의한 미세주기구조가 형성되고, 상기 타면에서 입사하는 광 중, 특정 파장 성분을 공명 반사시키는 공명 반사 소자(11)와, 상기 공명 반사 소자(11)의 형상 및/또는 굴절률을 변화시켜, 공명 반사의 공명 파장을 변화시키는 구동 수단(12, 14)을 갖는다. In the optical switching element 1, the thickness portion functions as a waveguide layer, one surface in the thickness direction functions as a total reflection surface, and the other surface has a fine periodic structure formed by fine unevenness, and among the light incident from the other surface, A resonance reflection element 11 for resonance reflection of the wavelength component and drive means 12 and 14 for changing the resonance wavelength of resonance reflection by changing the shape and / or refractive index of the resonance reflection element 11 are provided.

Optical switch

In an optical switch, a carrier-accumulating layer in which injected carriers are accumulated is provided on a semiconductor substrate having a waveguide formed thereon so that injected effective carriers tend to be accumulated in an effective part, and the burden on a driving circuit is thus reduced to realize high-speed operation. At the same time, when a clad on the carrier injection side, of clad layers formed on both sides of the waveguide, is a second clad layer, and a clad on the substrate side is a first clad layer, a third clad layer is formed on the first clad layer to reduce propagation loss in the waveguide.

Comprise the illuminator of beam shaping element

本发明涉及一种照明系统（10），其包括发光设备（20）和用于生成从照明系统发射的光的角分布（ ）的束成形元件（30）。束成形元件配置成用于经由朝向发光表面往回反射而回收至少一部分从发光设备的发光表面（26）发射的光。照明系统还包括基本上平行于发光表面布置的用于漫射至少部分回收光的漫射器（40、42）。漫射器由半透明漫射器（40）和/或发光设备的漫反射电极层（42）构成。使用束成形元件用于经由反射回收光，通过回收光而限制角分布，这在照明系统用于通用照明应用时减小了眩光。漫射器避免回收光被约束在束成形元件和发光元件的发光表面之间。回收优选地是经由在束成形元件的全内反射完成的。漫射器的存在提高了照明系统的效率。

Terahertz-wave optical generating apparatus and corresponding generation method

A terahertz wave generating apparatus includes an excitation light source (11) for outputting an excitation light (13) at a predetermined wavelength, an optical crystal (12) which is excited by the excitation light (13) so as to generate a terahertz wave (15) by optical parametric amplification of the excitation light (13), wherein the optical crystal (12) forms the core of an optical waveguide for the excitation light and a surrounding medium serves as a clad having a refractive index smaller than that of the optical crystal (12), and wherein the inputted excitation light (13) is propagated within the optical waveguide in a zigzag path by total internal reflection.

Two particle total internal reflection image display

A totally internally reflective image display having a first electrically charged particle and a second electrically charged particle of opposite charges are disclosed. By applying a non-zero voltage the particles are moved such that they frustrate total internal reflection and create a dark state. By applying a zero voltage and/or voltage pulsing, light is totally internally reflected to create a light state. The display is DC balanced and compatible with common drive electronics. Multi-colored displays may be created using first and second particles with different optical characteristics.

High speed optical shutter and method of operating the same and apparatus comprising the same

고속 광 셔터 및 그 동작 방법과 고속 광 셔터를 포함하는 장치가 개시되어 있다. 광 셔터는 외부 작용에 의해 전반사각이 변화되는 전반사 면을 갖는 고체 상태의 투명 전기-광학(electro-optice) 매체를 포함한다. 상기 전기-광학 매체는 상기 외부 작용에 의해 전반사각이 변화되는 프리즘 또는 프리즘 어레이일 수 있다. 상기 전기-광학 매체 앞에 입사광 경로 변경수단을 더 구비할 수 있다. 또한, 상기 전기-광학 매체를 통과한 광이 입사되는 대상에 상기 광이 수직으로 입사되게 하는 광 경로 변경수단이 더 구비될 수 있다. An apparatus including a high-speed optical shutter and an operation method thereof and a high-speed optical shutter is disclosed. The optical shutter includes a solid state transparent electro-optic medium having a total reflection surface whose total reflection angle is changed by an external action. The electro-optical medium may be a prism or a prism array whose total reflection angle is changed by the external action. The electro-optical medium may further include an incident light path changing unit. The optical path changing unit may further include a light path changing unit that causes the light to be vertically incident on an object to which light having passed through the electro-optical medium is incident.

Display panel and its driving method

本发明提供一种显示面板及其驱动方法，属于电子墨水显示技术领域，其可至少部分解决现有的电子墨水式的显示面板中电场不均匀、电极制备难度大的问题。本发明的显示面板包括对盒的第一基板和第二基板，二者间设有透明介质，透明介质中混有带电的吸光颗粒，第一基板包括第一基底以及全反射结构，透明介质的折射率比吸光颗粒和全反射结构的折射率都低；显示面板的每个像素单元中设有多个电极墙；每个像素单元中的电极墙包括第一电极墙和第二电极墙，在平行于显示面板的方向上，每个第一电极墙的墙面与至少一个第二电极墙的墙面相对设置，每个第二电极墙的墙面均与至少一个第一电极墙的墙面相对设置，且相对设置的电极墙间设有全反射结构。

Deactivated electro-optic material and method of forming the same

An electro-optically deactivated transmissive material comprises a plurality of chemicals which are sufficient, in combination, to enable formation of an electro-optic material having an index of refraction that is responsive to an electric field. The chemicals are combined with a glassifier so as to form a transmissive material that is less responsive to the electric field than said electro-optic material. The deactivated material has substantially the same refractive index as the electro-optic material in the absence of an electric field. In a preferred embodiment, the deactivated material is arranged with active material to form an optical switch.

Display device and electronic device with the same

상술한 바와 같이, 본 발명의 다양한 실시예는, 디스플레이 소자; 및 상기 디스플레이 소자 상에 배치되는 안내부를 포함하고, 상기 안내부는 상기 디스플레이 소자로부터 출사된 빛의 진행 경로를 안내하는 디스플레이 장치 및 그를 구비하는 전자 장치를 개시한다. 상기와 같은 디스플레이 장치 및 그를 구비하는 전자 장치는, 안내부를 이용하여 디스플레이 소자로부터 출사된 빛의 진행 경로를 안내함으로써, 편안한 시청 환경을 제공할 수 있다. 상기와 같은 디스플레이 장치 및 그를 구비하는 전자 장치는 실시예에 따라 다양하게 구현될 수 있다. As described above, various embodiments of the present invention include a display device; and a guide disposed on the display device, wherein the guide guides a path of light emitted from the display device, and an electronic device including the same. The display device as described above and an electronic device having the same may provide a comfortable viewing environment by guiding a path of light emitted from the display device using a guide unit. The display device as described above and an electronic device having the same may be implemented in various ways according to embodiments.

Liquid crystal display device

광의 이용 효율을 향상시키고, 또한 시각 특성이 우수한 배면광을 구비한 액정 표시 장치를 제공한다. The liquid crystal display device provided with the back light which improves the utilization efficiency of light and is excellent in visual characteristic is provided. 대향 배치된 적어도 한쪽에 전극을 갖는 한쌍의 기판 SUB1, SUB2 사이에 협지된 액정층으로 이루어지는 액정 패널과, 액정 패널을 끼우도록 배치된 상부 편광판 POL2 및 하부 편광판 POL1과, 액정 패널을 배면으로부터 조명하는 조명 광원 BL을 적어도 구비하고, 액정 패널과 조명 광원 BL 사이에 조명 광원으로부터의 출사광이 액정 패널에 입사할 때의 반사율을 제어하는 광학 필름 부재 ARF를 개삽하였다. A liquid crystal panel comprising a liquid crystal layer sandwiched between a pair of substrates SUB1 and SUB2 having electrodes on at least one opposite side, an upper polarizing plate POL2 and a lower polarizing plate POL1 arranged to sandwich the liquid crystal panel, and illuminating the liquid crystal panel from the back side. The optical film member ARF which interposed at least the illumination light source BL and controls the reflectance when the light emitted from the illumination light source enters the liquid crystal panel is inserted between the liquid crystal panel and the illumination light source BL.

Display device and method for manufacturing same

　遮光層の裏側の樹脂層の硬化不良を抑えることが可能な表示装置およびその製造方法を提供する。透明基板３０の側面３０Ｂ側から光Ｌを照射し、透明基板３０の側面３０Ｂまたはその近傍から入射させて透明基板３０中を導光させる。透明基板３０の前面３０Ａには、光Ｌの波長域における屈折率が透明基板３０の屈折率よりも低い中間層４０を設けて、光Ｌを全反射させる。透明基板３０の裏面３０Ｃでは、樹脂２１は、光Ｌの波長域における、硬化前の屈折率および硬化後の屈折率が透明基板３０の屈折率よりも高いので、光Ｌは樹脂２１に入射し、樹脂２１が硬化されて樹脂層２０が形成される。遮光層５０の裏側の樹脂層２０の硬化不良が抑えられ、未硬化の樹脂の液体の漏れや、非表示領域Ｂまたはその近傍の枠状の表示むら等が抑えられる。

Display module and electronic equipment

本发明是关于一种显示模组及电子设备，涉及显示技术领域，所要解决的技术问题是使其能够解决电子墨水屏带电粒子团聚的情况，以及加快显示的响应速度。主要采用的技术方案为：显示模组，其包括：上基板，所述上基板设置有第一电极，所述上基板的第一表面设置有矩阵排列的多个圆弧形凸起；下基板，所述下基板设置有第二电极，所述下基板的第一表面设置有矩阵排列的多个圆弧形凹槽；逆乳液；其中，所述上基板的第一表面与下基板的第一表面贴合，每个所述圆弧形凸起均与一个所述圆弧形凹槽配合，构成槽状容纳空间，所述逆乳液填充在所述槽状容纳空间中。本发明提供的显示模组能够避免带电粒子的团聚情况发生，以及加快显示的响应速度。

Multiple chip light emitting diode unit, backlight unit and LCD display device

本发明提供了一种多芯片发光二极管单元以及采用该多芯片发光二极管单元的背光单元和液晶显示装置。多芯片发光二极管单元包括：基底；多个发光元件，布置在基底上并且辐射至少两种波长的光；帽，设置在多个发光元件的每个的上面，由折射率大于相邻外部介质的折射率的材料制成，并且全内反射从发光元件发射的光。

Two particle total internal reflection image display

Display panel, driving method thereof and display device

一种显示面板及其驱动方法和显示装置。该显示面板包括衬底基板、设置在衬底基板上的介质层以及设置在介质层上远离衬底基板一侧的折射率可变层，折射率可变层与介质层接触设置并具有接触面，折射率可变层可改变折射率以使光在接触面发生全反射或透射。由此，该显示面板可提供一种新型反射型显示面板，不用设置黑色粒子，从而可避免发生粒子团聚等问题。

Display Unit

The display device according to the present invention includes: a liquid crystal layer 12 having a first principal face and a second principal face opposing each other; a plurality of electrodes 14 a and 14 b ; a fluorophore layer provided on the first principal face side of the liquid crystal layer; and an illuminator for emitting light for exciting the fluorophore layer toward the second principal face of the liquid crystal layer. When a predetermined voltage is applied, the liquid crystal layer forms an intermediate layer containing liquid crystal molecules which are oriented in a different direction from that of liquid crystal molecules in an anchoring layer near the second principal face, and causes linearly-polarized light which has been transmitted through the anchoring layer near the second principal face to be refracted toward the second principal face in or near the intermediate layer. Displaying is conducted by using light emitted by the fluorophore layer while no voltage is applied across the liquid crystal layer, and black displaying is conducted while a voltage is applied across the liquid crystal layer.

Optically induced total internal reflection X-junction waveguide optical switch, network and optical switching method

Optical apparatus and optical switching methods that provide optical high data rate switching at a wavelength or packet level using optical tone addressing. Optical signal routing is a result of optically induced total internal reflection at the intersection of an X-junction waveguide structure. The total internal reflection effect is controlled by a high intensity optical pump beam separate from the optical data signal. Total internal reflection may result from a free-carrier induced change in refractive index, which is a nonlinear effect found in common III-V semiconductors and selected polymers. Optical switching networks may be formed using cascaded pluralities of optical waveguide switches.

Display device and method of manufacturing the same

Bistability enhancement in total internal reflection image displays

Total internal reflection image displays are equipped with a bistability enhancement particle interaction layer. The bistability enhancement layer imparts bistability in the display at 0V or power off. The bistability enhancement layer may hold particles near the surface in the evanescent wave region at the front electrode at 0V or power off to retain a dark state image. The particle interaction layer may hold particles near the surface of the rear electrode at 0V or power off to retain a bright state image. Control of particle density improves bistability.

A multiservice optical switch

A time division multiplexed optical switching system switches a signal from an ingress port to an egress port. The system comprises an optical switching fabric, ingress and egress line cards and a switch control fabric. The optical switching fabric routes an optical signal from one of M ingress fibers to one of N egress fibers. The ingress line card is coupled between the ingress port and the optical switching fabric for receiving the signal at the ingress port. The ingress line card comprises a buffer for storing the ingress signal and transmits the signal to the optical switching fabric. The egress line card is coupled between the egress port and the optical switching fabric for receiving the optical signal from the egress fiber of the optical switching fabric. The egress line card comprises a buffer for storing the optical signal and transmits the signal to the egress port. The switch control fabric allots time slots to the ingress line card for transmitting to the optical switching fabric.

Electro-holographic light field generators and displays

An electro-holographic light field generator device is disclosed. The light field generator device has an optical substrate with a waveguide face and an exit face. One or more surface acoustic wave (SAW) optical modulator devices are included within each light field generator device. The SAW devices each include a light input, a waveguide, and a SAW transducer, all configured for guided mode confinement of input light within the waveguide. A leaky mode deflection of a portion of the waveguided light, or diffractive light, impinges upon the exit face. Multiple output optics at the exit face are configured for developing from each of the output optics a radiated exit light from the diffracted light for at least one of the waveguides. An RF controller is configured to control the SAW devices to develop the radiated exit light as a three-dimensional output light field with horizontal parallax and compatible with observer vertical motion.

Resettable optical fuse

A resettable optical energy switching device comprises a waveguide forming an optical path between an input end and an output end, and an optical energy diverting material located in said optical path for diverting optical energy propagation away from said output end when said optical energy exceeds a predetermined threshold. The optical energy diverting material does not divert optical energy propagation away from the output end when the optical energy propagation drops below the predetermined threshold, and thus propagation of optical energy to the output end is automatically resumed when the optical energy drops below the predetermined threshold. In one implementation, the optical energy diverting material comprises a light-absorbing material having an index of refraction that decreases as light is absorbed by the material.

Surface parallel modulator

SiGe quantum wells where the well material has a lowest conduction band energy minimum at k=0 (the Γ point of the first Brillouin zone) are provided. Quantum well structures that satisfy this condition have “Kane-like” bands at and near k=0 which can provide physical effects useful for various device applications, especially optical modulators. In the Si 1-x Ge x material system, this condition on the band structure is satisfied for x greater than about 0.7. The quantum well barrier composition may or may not have Kane-like bands. Embodiments of the invention having a surface parallel configuration are especially suitable for use in fiber coupled devices. Such surface parallel devices have light propagating in the plane of the quantum wells, in a device geometry that is preferably not single-mode waveguided.

Silicon-based ge/sige optical interconnects

SiGe quantum wells where the well material has a lowest conduction band energy minimum at k=0 (the Γ point of the first Brillouin zone) are provided. Quantum well structures that satisfy this condition have “Kane-like” bands at and near k=0 which can provide physical effects useful for various device applications, especially optical modulators. In the Si 1-x Ge x material system, this condition on the band structure is satisfied for x greater than about 0.7. The quantum well barrier composition may or may not have Kane-like bands. Optical modulators and/or detectors according to the invention are suitable for inclusion in waveguide-based optical interconnects. Such interconnects can be on-chip interconnects or chip to chip interconnects.

Method and apparatus for an enhanced brightness tir image display

Brightness in conventional total internal reflection image displays may decrease due to incident light passing through the dark pupil region in the white state. Certain embodiments of the disclosure relate to an enhanced brightness total internal reflection-based image display utilizing a front sheet having an array of modified hemispherical protrusions with a partially light reflective surface. Modifying the structure of the convex protrusions of the transparent front sheet and adding a light reflective layer on specific areas of the protrusions may increase brightness in the white state. Controlling the size, depth and angle of the structure of the convex protrusions may direct incident light by one or more of total internal reflection and specular reflection in a controllable manner to enhance brightness of the display.

Display panel and display device having the same

A display panel and display device having the same are provided. The display panel includes a quantum dot color filter layer configured to convert a color of light; a transparent front substrate provided at a first side of the quantum dot color filter layer; and a low refractive layer provided between the quantum dot color filter layer and the front substrate, the low refractive layer having a refractive index that is lower than a refractive index of the quantum dot color filter layer.

Display device

Three-dimensional display

Disclosed herein are three-dimensional displays comprising a waveguide, an electrophoretic modulating element comprising particles or an electro-wetting modulating element comprising a fluid droplet, and a driving means configured to control an electric field, to modulate the total internal reflection of light in the waveguide.

Optische vorrichtung zur erzeugung von licht im terahertz-frequenzbereich

Light path control member and display device including same

基于tir的图像显示器中取决于形状的凸形突起

可以通过调整凸形突起的尺寸和形状来增强包括滤色器阵列的全内反射图像显示器中的亮度。每个突起或两个或更多个突起的组可以与诸如红色、绿色或蓝色的滤色器子像素对准，并且与薄膜晶体管对准。可以相对于滤色器子像素将每个突起或两个或更多个突起的组调整到特定的尺寸和形状，可以在逐个像素的基础上与之对准。这可以增强在与各个像素的期望颜色匹配的波长处的反射率。

SAW Optical Modulators with Sense Transducers

An electro-holographic light field generator device comprises surface acoustic wave (SAW) optical modulators arranged in different directions. Specifically, some embodiments have SAW modulators arranged in pairs, nose-to-nose with each other, and have output couplers that provide face-fire light emission. These SAW modulators also possibly include SAW sense transducers and/or viscoelastic surface material to reduce crosstalk.

テラヘルツ波発生素子、及び、テラヘルツ波検出素子

【課題】 発生したテラヘルツ波のパワー分布の歪みを低減する。【解決手段】 テラヘルツ波発生素子は、光１０４が伝搬することによってテラヘルツ波１０５を発生する非線形光学結晶１０２と、非線形光学結晶から発生するテラヘルツ波が伝搬する結合部材１０３と、を有し、結合部材は、テラヘルツ波の少なくとも一部を反射する反射面１０７を有し、反射面は、テラヘルツ波の伝搬方向に凸であり、光の波長における非線形光学結晶の群屈折率をｎｇ、非線形光学結晶から発生するテラヘルツ波の波長における結合部材の屈折率をｎＴＨｚとすると、光の伝搬方向を含む面において、反射面と光の伝搬方向とがなす結合部材側の角の大きさは、９０度−ｃｏｓ−１（ｎｇ／ｎＴＨｚ）より大きく且つ９０度より小さく、非線形光学結晶から発生するテラヘルツ波が反射する反射領域における反射面の曲率半径は、光の伝搬方向の下流側ほど小さい。【選択図】 図１

Terahertz wave generating element and terahertz wave detecting element

A terahertz wave generating element includes a nonlinear optical crystal generating terahertz waves by propagating light, and a coupling member propagating the generated terahertz waves. The coupling member includes a reflecting face reflecting at least part of the generated terahertz waves. The reflecting face is convex in a propagation direction of the generated terahertz waves. An angle at the coupling member side between the reflecting face and the propagation direction of the light is greater than 90 degrees−cos −1 (n g /n THz ) but smaller than 90 degrees at a plane including the light propagation direction. n g represents a group refractive index of the nonlinear optical crystal at a wavelength of the light, n THz the refractive index of the coupling member at a wavelength of the generated terahertz waves. A curvature radius of the reflecting face, in a reflection region reflecting the radius terahertz waves, is smaller the farther downstream in the light propagation direction.

Display device

The present disclosure provides a display device that include: a display panel that includes a display area and a peripheral area that is provided at the periphery of an edge of the display area; a window that is provided on one side of the display panel to protect the display panel; and an adhesive film that is provided between the display panel and the window to bond the display panel and the window to each other, wherein the adhesive film in an area that corresponds to the peripheral area and the adhesive film in an area that corresponds to the display area have different properties.

Three-dimensional display

Disclosed herein are three-dimensional displays comprising a waveguide, an electrophoretic modulating element comprising particles or an electro-wetting modulating element comprising a fluid droplet, and a driving means configured to control an electric field, to modulate the total internal reflection of light in the waveguide.

表示装置

本発明の表示装置は、互いに対向する第１主面と第２主面とを有する液晶層１２と、複数の電極１４ａおよび１４ｂと、液晶層の第１主面側に設けられた蛍光体層と、液晶層の第２主面に向けて蛍光体層を励起する光を出射する照明装置とを備える。液晶層は、所定の電圧が印加されたときに、第２主面近傍のアンカリング層の液晶分子と異なる方向に配向した液晶分子を含む中間層を形成し、第２主面近傍の前記アンカリング層を透過した直線偏光を、中間層内またはその近傍において第２主面に向けて屈折し、液晶層に電圧を印加していない状態で蛍光体層が発光する光を用いて表示を行い、液晶層に電圧を印加した状態で黒表示を行う。

라이트 유닛 및 이를 포함하는 표시 장치

일 실시예에 따른 라이트 유닛은 광원, 그리고 상기 광원에서 방출되는 광을 전달 및 변환하는 광학 부재를 포함하며, 상기 광학 부재는, 도광판, 상기 도광판 위에 위치하며 상기 도광판의 굴절률보다 작은 굴절률을 가진 저굴절률층, 그리고 상기 저굴절률층 위에 위치하며 양자점을 포함하는 파장 변환층을 포함하고, 상기 저굴절률층은 금속을 포함한다.

Method and device for generating terahertz wave

光経路制御部材及びこれを含むディスプレイ装置

Resettable optical fuse

A resettable optical energy switching device comprises a waveguide forming an optical path between an input end and an output end, and an optical energy diverting material located in said optical path for diverting optical energy propagation away from said output end when said optical energy exceeds a predetermined threshold. The optical energy diverting material does not divert optical energy propagation away from the output end when the optical energy propagation drops below the predetermined threshold, and thus propagation of optical energy to the output end is automatically resumed when the optical energy drops below the predetermined threshold. In one implementation, the optical energy diverting material comprises a light-absorbing material having an index of refraction that decreases as light is absorbed by the material.

Resettable optical fuse

A resettable optical energy switching device comprises a waveguide forming an optical path between an input end and an output end, and an optical energy diverting material located in said optical path for diverting optical energy propagation away from said output end when said optical energy exceeds a predetermined threshold. The optical energy diverting material does not divert optical energy propagation away from the output end when the optical energy propagation drops below the predetermined threshold, and thus propagation of optical energy to the output end is automatically resumed when the optical energy drops below the predetermined threshold. In one implementation, the optical energy diverting material comprises a light-absorbing material having an index of refraction that decreases as light is absorbed by the material.

SAW Modulators and Light Steering Methods

An electro-holographic light field generator device is disclosed. The light field generator device has an optical substrate with a waveguide face and an exit face. One or more surface acoustic wave (SAW) optical modulator devices are included within each light field generator device. The SAW devices each include a light input, a waveguide, and a SAW transducer, all configured for guided mode confinement of input light within the waveguide. A leaky mode deflection of a portion of the waveguided light, or diffractive light, impinges upon the exit face. Multiple output optics at the exit face are configured for developing from each of the output optics a radiated exit light from the diffracted light for at least one of the waveguides. An RF controller is configured to control the SAW devices to develop the radiated exit light as a three-dimensional output light field with horizontal parallax and compatible with observer vertical motion.