ORGANIC LIGHT EMITTING DISPLAY DEVICE

Hereinafter, in the embodiment of the present invention with reference to an exemplary drawing part are detailed as follows. Each of the drawings in adding references components, although other drawing even for the same components displayed on a possible code may have the same. In addition, the present invention is connected to the described, publicly known or a function of the associated specific description the subject matter of invention description if a haze can be decided to be dispensed can be.

In addition, the constitution of the invention described is provided to element, number 1, number 2, A, B, (a), (b) using terms such as can be. Other components such terms having an element discriminate between the hell of, its terms corresponding by the nature of the components, in turn, not limited number order or the like. Any component and other components "connected", "coupled" or "connected" are blocked when described, other components or constituents are directly linked can be connected but, "interposed" between components or other components for each, each component through other components of the "connected", "coupled" or "connected" is a device that may be will be.

Figure 1 shows a cross-section of the organic light emitting display device also one in the embodiment according to 2000. 2a be accomplished cross-sectional drawing of Figure 1 X region is also are disclosed. Number 1 of over coating layer for partially plane view of Figure 1 X electrode 2b is also are disclosed.

The reference also 1 and 2a also, organic light emitting display device in the embodiment according to one (100) substrate (110), thin film transistor (120), color filter (150), over coating layer (160) and organic light emitting device (140) having a predetermined wavelength.

Also 1 and 2a also are shown in the organic light emitting display device (100) includes a bottom emission type organic light emitting display device was shown. However, in the embodiment according to one organic light emitting display device (100) includes a color filter (150) substrate (110) opposite the top emission the converter device may be disclosed.

Substrate (110) on gate electrode (121), active layer (122), a source electrode (123) and a drain electrode (124) including a thin film transistor (120) is disposed thereon.

Specifically, substrate (110) on gate electrode (121) is disposed, gate electrode (121) and substrate (110) on gate electrode (121) and the active layer (122) for insulating gate dielectric layer (131) is disposed, a gate dielectric layer (131) active layer (122) is disposed, an active layer (122) transfer (etch stopper; 132) is arranged on a half of the star, active layer (122) star semiconductor dielectric (132) on the source electrode (123) and a drain electrode (124) disposed thereon. A source electrode (123) and a drain electrode (124) active layer (122) manner in contact with the active layer (122) and electrically connected with, etch star transfer (132) formed on a portion of disposed thereon. Semiconductor etch star (132) is arranged not may be filled.

The specification for facilitating descriptions in the organic light emitting device (100) various thin film on the substrate was shown only be included in the thin film transistor. In addition, the specification gate insulator (120) active layer is (122) reference gate electrode (121) the source electrode (123) and a drain electrode (124) located on the opposite side with inverted staggered (inverted staggered) structure or a bottom gate structure described but active layer (122) reference gate electrode (121) the source electrode (123) and a drain electrode (124) in addition to such as the coplanar waveguide (coplanar) structure or a top gate thin film transistor can be also be used.

Thin film transistor (120) on the passivation layer (133) is disposed, passivation layer (133) color filter on (150) has a flat portion.

The passivation layer also 2a (133) of the thin film transistor (120) upper for planarizing a illustrated but, passivation layer (133) a thin film transistor (120) without are planarized, the underlying elements arranged along the surface profile of the disapproval.

Color filter (150) is the organic light emitting layer (142) is provided for converting the emitted light in color, for example a red color filter, a green color filter and a blue color filter can be one.

Color filter (150) is passivation layer (133) on a position corresponding to the light-emitting region disposed thereon. Wherein, the light emission region is number 1 electrode (141) and number 2 electrode (143) organic light emitting layer (142) components it region, in positions corresponding to the light-emitting region color filter (150) is positioned such that the emitted light in the light emitting regions adjacent the occurrence of ghost ring phenomena and blur is disclosed to prevent color filter (150) means are disposed to each other.

For example, color filter (150) is arranged so as overlapping the light-emitting region, specifically hereinafter may have the size of light emitting region. But, color filter (150) and location of, size and position of the light as well as size, color filter (150) on electrode number 1 (141) distance between, color filter (150) on the over coating layer (160) of the protrusions (162) distance between, the distance between the light-emitting region and a light-emitting region such as can be determined by various factors.

Color filter (150) and (133) on the over coating layer (160) disposed thereon. The passivation layer also 2a (133) the organic light emitting display device (100) to be switched on but shown, passivation layer (133) and unused, thin film transistor (120) directly on the over coating layer (160) disapproval can be arranged. Color filters also 2a (150) is passivation layer (133) is illustrated but disposed on, the not one number, color filter (150) is over coating layer (160) and the substrate (110) can be disposed at an arbitrary position between.

Over-coating layer (160) color filter (150) includes a plurality of protrusions arranged to be overlapping (162) adjacent to each other and a projected part (162) connecting the connection number 1 (161) having a predetermined wavelength. 2a also includes a hexagonal includes a plurality of protrusions (162) cross-sectional drawing of are disclosed. Number 1 connection (161) adjacent to each convex portion (162) between high portion are disclosed. Over-coating layer (160) is a plurality of protrusions (162) is disposed in portions of the planarizing layer functions as a substrate.

As shown in the 2b also includes a plurality of protrusions (162) and number 1 connection (161) to be fully hexagonal each plane can be a generally semi-spherical shape which is not a single number the one example, can be various shapes are square shape or the like. A plurality of protrusions (162) is arranged on a plane hexagonal of honeycomb structure can be arranged. In other words hexagonal one raised portion (162) and another adjacent convex portion (162) is embodied as a single piece share one hexagon can be arranged in a honeycomb.

Over-coating layer (160) number 1 on electrode (141), the organic light emitting layer (142) and number 2 electrode (143) including an organic light emitting device (140) and bank (136) is disposed thereon. At this time, but that does not shown over-coating layer (160) dog [sing[sing] out from organic light emitting device (140) from being diffused while over coating layer (160) of the protrusions (162)'s morphology along as an outer electrode number 1 (141) passivation layer (not shown) is over coated layer that has a refractive index similar to a while insulating number 2 (160) and number 1 electrode (141) can be added to between.

Specifically, over coating layer (160) portion on the organic light emitting layer (142) supplies one electrode number 1 for the electrons or holes (141) disposed thereon. Number 1 electrode (141) in the normal organic light-emitting device (normal OLED) anode, and pixel electrode or it will be a child node, inverted organic light emitting device (inverted OLED) cathode, it will dig up and it will be a cow [tu[tu] pixel electrode or may be filled.

Number 1 electrode (141) over coating layer (160) and passivation layer (133) formed on the thin film transistor through the contact hole (120) source electrode (123) can be connected. The specification gate insulator (120) N temperature by using a thin-film transistor is thus set to the moment when, number 1 electrode (141) the source electrode (123) disclosed that but connected to, thin film transistor (120) when the electrode number 1 is p temperature by using a thin film transistor (141) gate electrode (124) connected to disapproval. Number 1 electrode (141) is direct the organic light emitting layer (142) or in contact with, the organic light emitting layer and an outer conductive material (142) can be electrically connected in contact with.

Number 1 electrode (141) over coating layer (160) along the shape surface morphology (morphology) disposed thereon. The, number 1 electrode (141) over coating layer (160) of the protrusions (162) a convex tip morphology.

Over-coating layer (160) and number 1 electrode (141) disposed on the outer, electrode number 1 (141) opening exposing (136a) including a bank layer (136) disposed thereon. Bank layer (136) adjacent pixel (or pixel) serves coverage between the input unit, the target pixel (pixel) region positioned in between disapproval. Over-coating layer (160) of the protrusions (162) on connection number 1 (161) the calculation layer (136) opening (136a) to overlapping disposed thereon. As the aforementioned over-coating layer (160) of the protrusions (162) on connection number 1 (161) has a color filter (150) rotates to overlapping, over coating layer (160) of the protrusions (162) on connection number 1 (161) at the bottom and a color filter that (150) and overlapping the upper bank layer (136) opening (136a) overlapping the other.

Number 1 electrode (141) on the organic light emitting layer (142) is disposed, the organic light emitting layer (142) on the organic light emitting layer (142) supplies one electrode number 2 for the electrons or holes (143) is disposed thereon. The organic light emitting layer (142) to (tandem white) light changing a plurality of organic emissive layer is laminated structure disposed thereon. The organic light emitting layer (142) emitting a blue organic light emitting layer disposed on the organic light emitting layer number 1 and number 1, number 2 white color light by mixing blue light can be organic light emitting layer. Number 2 organic emissive layer, e.g., organic light emitting spectrum of the light emitted (yellowgreen) seed layer disclosed. On the other hand, the organic light emitting layer (142) is blue light, red light, green light emitting organic light emitting layer may contain only one of disapproval. The color filter (150) thereof can not. Number 2 electrode (143) (normal OLED) normal organic light emitting cathode, and common electrode or it will dig up and it will be a cow [tu[tu], inverted organic light emitting device (inverted OLED) in anode, it will be a child node common electrode or may be filled.

2a also reference the over coating layer (160) of the protrusions (162) on connection number 1 (161) number 1 between electrode (141) perpendicular to the organic light emitting layer (142) over the thickness of the coating layer (160) of the protrusions (162) for the floor or number 1 connection (161) in the organic light emitting layer (142) thereof can thickness less than that of. In particular, over coating layer (160) of the protrusions (162) on connection number 1 (161) between the organic light emitting layer (142) slope (slope) in chamber is installed to enclose the organic light emitting layer (142) smallest thickness of thereof can.

Depositing the organic light emitting layer manner e.g. (142) are formed on a first substrate (110) deposited perpendicularly to the organic light emitting layer (142) equal the thickness of the organic light emitting layer (142) is over coated layer (160) shaped in accordance's morphology may have. Therefore deposition process the organic light emitting layer (142) but the position of largest (142c) thread number number 1 electrode (141) and number 2 electrode (143) between current driving the organic light emitting layer (142) (d1) is equal to the thickness of the tip. The organic light emitting layer (142) but the position of the smallest, i.e. bottom (142a) or normal (142b) in electrode number 1 (141) and number 2 electrode (143) between current driving the organic light emitting layer (142) (d2, d3) is equal to the thickness of most thick. The organic light emitting layer (142) according to the thickness of the organic light emitting layer (d1, d2, such as d3) (142) amount of light in one aspect, over coating layer (160) of the protrusions (162) on connection number 1 (161) between the organic light emitting layer (142) per unit area of the light emission amount number 1 connection (1622) for the floor or convex portions (1611) at the tip of the organic light emitting layer (142) may be bigger than per unit area of the light emission amount. In particular, over coating layer (160) of the protrusions (162) on connection number 1 (161) between the organic light emitting layer (142) slope (slope) ultra fine position (142c) of the organic light emitting layer (142) can be the largest amount of light.

The organic light emitting layer (142) and number 2 electrode (143) over coating layer (160) along with a number 1 electrode surface morphology (morphology) (141), the organic light emitting layer (142) and number 2 electrode (143) is number 1 electrode (141) along the upper surface of the shape morphology (morphology) disposed thereon. The resulting overcoated layer (160) of the protrusions (162) organic light-emitting device (140) can be shape of implementing.

Organic light-emitting device (140) for improving micro lens array structure engine is external light extraction efficiency, therefore pattern organic light emitting device (140) surface 2a as also shown in the over coating layer (160) of the protrusions (162) performed on the curvature flows with each other. The organic light emitting layer (142) includes a plurality of bending the bottom of (142a) and normal (142b) than the thickness of the bottom of a plurality of bending (142a) and normal (142b) between relatively thin region having a thickness of at least a portion of thereof can. The recording electrode number 1 region of steep slope (141) and number 2 electrode (143) between the organic light emitting layer (142) shortest thickness (d1) stays in the efficiency light emitting region (Y) thin that the electric field is locally, an over coating layer (160) of the protrusions (162) and connection number 1 (161) is in the area between the occurs. Organic light-emitting device (140) is locally concentrated electric field in the luminescence area 50 is such efficiency and primary current path is formed while emitting primary of deep-seated over-coating layer (160) of number 1 connection (1622) inefficiency (Z) does not substantially light-emitting region is extracted. The light-emitting region (Z) to consume less power in spite inefficiency for extracting light substantially equal to external light emitting extraction efficiency does not drop.

In the embodiment according to one organic light emitting display device (100) includes a color filter (150) for the microlens array of pattern on the convex profile of the over-coating layer (160) can be included. The organic light emitting layer (142) light emitting electrode number 1 (141) and the organic light emitting layer (142) while totally confined in the micro lens array structure is reflected totally by the inserted inside a unit proceeds to an angle of less than a critical angle and out through the multiple reflections can be inorganic.

At this time, the organic light emitting layer by the inserted micro-lens array (142) where it is in progress angle changes with the emitted light, the position angle difference appears to be even by elevated rapidly year other microlens array can be.

Over-coating layer (160) of the protrusions (162) (photolithography) the shape of the photolithography process such as formed through which, when the heat treating process is performed to dry the over coating layer (160) of the protrusions (162)'s morphology can be controlled.

More specifically described as follows. Over-coating layer (160) of the protrusions (162) in order to form, a convex shape through the photoresist process relative heat treatment after patterning a plurality of hierarchies. At this time, by a heat treatment at a time but, heat treatment should be performed over 2 steps in stages over coating layer (160) of the protrusions (162) shape can be formed. For example, in the vicinity near about 200 °C or more final heat treatment carried out before about 100 °C or more 130 °C hereinafter 250 °C hereinafter first intermediate heat treatment should be performed other.

At this time, intermediate heat treatment for performing time over coating layer (160) of the protrusions (162) of the pin is related organic metal. Performing formed by intermediate heat treatment time, finally formed the over coating layer (160) of the protrusions (162) 1,750,000 of thermoplastic elastomers. Extremely, if performing final heat treatment be directly performing only intermediate heat treatment time over-coating layer (160) of the protrusions (162) wool Polo of any over-coating layer (160) is planarized substrate.

Using such tendency, over coating layer (160) of the protrusions (162) thermoplastic elastomers of various organic light emitting display device different a small number-gate. By using the over-coating layer (160) of the protrusions (162) when the how many's morphology, an over coating layer (160) of the protrusions (162) aspect ratio of how many when the organic light emitting device (140) which is operated in a maximum luminous efficiency can be dubious about his experiments.

In the embodiment according to one organic light emitting display device (100) for improving the light extraction efficiency is also embedded over coating layer (160) of the protrusions (162) to the change of the shape of the organic light emitting device through the optical path (140) being totally trapped inside to outside light are extracted are disclosed.

Embedded over coating layer for improving external light extraction efficiency (160) of the protrusions (162) defines its shape-formed optical path change shape according to main for improving light extraction efficiency as variable over coating layer (160) of the protrusions (162) of diameter (D (Diameter)), height (H (Height)), aspect ratio (A/R (Aspect Ratio)), anti-height width (F (Full Width Half Max)), anti-height width aspect ratio (F_A/R (=H/F)), slope (S (Slope)), convex portion (162) in the bottom of the distance (G (Gap)), aspect ratio aspect ratio (Rm (Ratio of MLA=(F_A/R)/(A/R))) for anti-height etc..

3a is also over coating layer (160) of the protrusions (162) associating variables determine the shape of general outline display are disclosed. Also coupled to the organic light emitting display device in the embodiment according to the shape of convex layer overcoated in 3b defines variables etc. are shown. (G) general outline of a projection on the over coating layer is also 3c floor interval for drawing to explain are disclosed.

The 3a and 3b may also reference, over coating layer (160) of the protrusions (162) (D) diameter of two projections (162) length between components, height (H) has a convex portion (162) from normal convex portion (162) for the floor or number 1 connection (161) to the bottom of the length big. As is also shown in the 3a anti-height width (F) position degrees and two projections (162) length between big. The convex portion (162) is the aspect ratio of a projected part (A/R) (162) (H) height of the raised portion (162) divided by radius of big value (D/2).

The convex portion (162) and the diameter (D) is 1 to 5 micro m, height (H) is 1 to 4 be a micro m in hexagonal.

Over-coating layer (160) of the protrusions (162) (A/R) aspect ratio of about 0. 2 or more 0. 8 hereinafter is if it has the value of, over coating layer (160) of the protrusions (162A) (A/R) is aspect ratio of 0. 8 is also used for eye drops having a value greater than than if current efficiency rising ratio can be. Rather over coating layer (160) of the protrusions (162) (A/R) aspect ratio of about 0. 8 identify the tendency of the rising ratio current efficiency if it has greater than value can be rather lowered due. In particular over coating layer (160) of the protrusions (162) aspect ratio of about 0. 4 or more 0. 7 hereinafter when current efficiency rising ratio of maximum value of between them can be.

The organic light emitting display device shown in the embodiment according to one (100) of the organic light-emitting device (140) is arranged surface, over coating layer (160) of the protrusions (162) (A/R) aspect ratio of about 0. 2 or more about 0. 8 hereinafter having a value of between the over coating layer (160) can be top surfaces. In the embodiment according to organic light emitting display device of the present invention or one (100) of the organic light-emitting device (140) is arranged surface, over coating layer (160) of the protrusions (162) (A/R) aspect ratio of about 0. 2 or more about 0. 8 hereinafter having a value of between the over coating layer (160) along the upper surface of the passivation layer (not shown) be a number 2 it's morphology. I.e., at this moment over coating layer (160) having a surface passivation layer (not shown) aspect ratio (A/R) number 2 or about 0. 2 or more about 0. 8 hereinafter having a value of between non-planar screen and thus to protect the organic light emitting device (140) is aspect ratio of about 0. 2 or more about 0. 8 hereinafter formed non-planar screen having a value of between gentle, anode (141), the organic light emitting layer (142) and a cathode (143) is sampled by non-planar screen's morphology has a shape which is to be coated.

The classifies, over coating layer (160) of the protrusions (162) is formed by heat treating process intermediates in process is not necessarily through somewhat short, over coating layer (160) of the protrusions (162) 161 to cause the inclination can be diffusion. According to this method over-coating layer (160) of the protrusions (162) (A/R) is aspect ratio of 0. 2 or more 0. 8 hereinafter to have the value of the over-coating layer (160) when form over coating layer (160) on anode (141), the organic light emitting layer (142) and a cathode (143) including an organic light emitting device (140) to bank (136) can be formed.

Over-coating layer (160) of the protrusions (162) being carried out when subjected only shape defining of aspect ratio (A/R), aspect ratio (A/R) (H) (D) only on the same diameter to height ratio thereof defining the same anti-height width (F) (G) or even intervals between projections remaining variables such as defined by different values when over-coating layer (160) of the protrusions (162) is equal to the shape of different rapidly year.

Also 4a to 4d is also over coating layer (160) of the protrusions (162) aspect ratio shape cross-sectional drawing a shape of the same are disclosed.

4a is also over coating layer (160) of the protrusions (162) as a reference when a woman's urethral increase number 1 to number 3 regions included in each divided position of etc. (C, B, A) shown.

Also 4b to 4d is also over coating layer (160) of the protrusions (162) (D) and height (H) diameter of same or similar aspect ratio (A/R) is the same or similar over-coating layer (160) of projections (162) of cross-sectional drawing are disclosed. Also shown in the over coating layer also 4b to 4d (160) of the protrusions (162) (A/R) aspect ratio of about 0. 6 to as aforementioned over coating layer excellent rising ratio current efficiency (160) of the protrusions (162) of 0. 2 or more 0. 8 hereinafter multiple myelomas are included in the range of.

4b is also over-coating layer (160) of the protrusions (162) (H) (C) with reference to the height of a woman's urethral region when the maximum slope (Smax) number 1 is positioned the over coating layer (160) of the protrusions (162) etc. is shown. The convex portion (162) slope (S) 3a and 3b is also as also shown in the convex portion (162) of the lower surface of the horizontal angle between tangential big. The maximum slope (Smax) has a convex portion (162) of the lower surface of the horizontal tangential angle of maximum slope between big.

4c is also overcoated layer (160) of the protrusions (162) with reference to the height of a woman's urethral region (H) when the maximum slope (Smax) number 2 (B) is positioned the over coating layer (160) of the protrusions (162) etc. is shown.

4d is also overcoated layer (160) of the protrusions (162) (H) (A) with reference to the height of a woman's urethral region when the maximum slope (Smax) number 3 is located the over coating layer (160) of the protrusions (162) etc. is shown.

Also shown in the over coating layer also 4b to 4d (160) of the protrusions (162) (A/R) aspect ratio of the same or similar in spite of over coating layer (160) of the protrusions (162) according to the difference between the shape of the organic light emitting layer (142) of the light emitted from the light extraction efficiency improvements not made any convex unit which different path (162) shape of can be present.

Figure 5 shows a identical or similar aspect ratio (A/R) in a variety of shapes and be there exists a projection on the coating layer.

The reference 3a and also 5 also, over coating layer (160) of the protrusions (162) 3a as also shown in the shape of triangular shape if the over coating layer (160) of the protrusions (162) (F) (D/2) is half of the diameter of anti-height width are disclosed. The over coating layer (160) of the protrusions (162) of the lower surface of slope (S) is both are the same.

The reference also 5, one in the embodiment according to organic light emitting display device (100) included in the over coating layer (160) of the protrusions (162) is anti-height width (F) is radius (D/2) may be less than disclosed. Over-coating layer (160) of the protrusions (162) that is greater than the protruding parts of anti-height width (F) radius (D/2) (162) and the side surface of the lateral direction increases fat shape external light extraction efficiency can be in the optical path of the objective lens. On the contrary as the aforementioned over-coating layer (160) of the protrusions (162) (F) (D/2) is smaller than radius anti-height width of the protruding parts (162) in the optical path direction normal to the lateral direction of the edge of the side surface of the hall [ccwuk[ccwuk] under external light extraction efficiency can be improved. The organic light emitting display device in the embodiment according to one (100) included in the over coating layer (160) of the protrusions (162) has a convex portion (162) for anti-height width (F) (D/2) radius ratio of 0. 1 hereinafter implementation being.

Figure 6 over coating layer (160) of the protrusions (162) of each organic light emitting display device and having a width (F) is various anti-height each, according to current efficiency (current efficiency enhancement (%) (%) or enhancement of current efficiency) anti-height width graph indicating the relationship between rising ratio are disclosed. The current efficiency rising ratio each group 1 by another substrate.

For example over coating layer (160) of the protrusions (162) the diameter of the (D) 4. 5um and height (H) is 1. 7um (A/R) to aspect ratio is 0. 76 in organic light emitting display device (100) is in anti-height width (F) 2. 0um anti-height width (F) is plate is less than 2. 0 or more current efficiency rising ratio more than were to 1:1 by weight. Rather over coating layer (160) of the protrusions (162) of anti-height width (F) is 2. 0um or more value if it has current efficiency rising ratio is rather lowered due the tendency of identifying (rising ratio P-typed having) can be.

The classifies the over-coating layer (160) of the protrusions (162) having such a structure determination of a value (A/R) aspect ratio of width (F) even anti-height is 2. 0um or more value if it has organic light-emitting device (140) on the basis of internal light beam substrate (110) and the organic light emitting layer (142) that is trapped between the encapsulating the extracted critical angle (also 42) greater than. Thereby current efficiency rising ratio is rather lowered due permit drop can be sure that the tendency of luminous efficiency.

On the other hand, the convex portion (162) of the aspect ratio can be greater than (A/R) anti-height aspect ratio (F_A/R). The convex portion (162) of anti-height aspect ratio (F_A/R) has a convex portion (162) for height (H) of anti-height width (F) of big. The convex portion (162) for anti-height aspect ratio aspect ratio of 1. 0 can be greater than. As aforementioned convex portion (162) (A/R) is aspect ratio of 0. 7 or more 0. 8 hereinafter to when, for example convex portion (162) of anti-height aspect ratio (F_A/R) is 0. 8 exceeds 2. 0 can be less than disclosed.

As also shown in the 5 over-coating layer (160) of the protrusions (162) has a width (F) is radius (D/2) is smaller than the same width anti-heightanti-height (F) may have a variety of shapes even.

For example over coating layer (160) of the protrusions (162) of the upper surface is radius (D/2) (F) anti-height width less than left-reference overcoated layer (160) of the protrusions (162) slope (S) normal floor may have a continued increasing shape (shape of Figure 5 f1). In addition, when the same with a light-layer (160) of the protrusions (162) (S) (Smax) from minimum to maximum slope inclination of slope (Smin) minimum slope (Smin) been taper shape (shape of Figure 5 f2) may have a back from the face. In addition when the same with a light-layer (160) of the protrusions (162) slope (S) (Smax) again after reaching maximum slope face is of a shape (of Figure 5 f3) may have a taper.

As aforementioned 2a also refers to the organic light emitting layer (142) of the cathode of the deposition process, over coating layer (160) of the protrusions (162) on connection number 1 (161) between the organic light emitting layer (142) slope (slope) ultra fine position, maximum slope (Smax) of the organic light emitting layer (142) greater most amount of light. The convex portion (162) of the f1 f2 positions if the light emission amount of shape shape or largest convex portion (162) located floor or to the top of to be coated. In this case the organic light emitting layer (142) light emitting electrode number 1 (141) and the organic light emitting layer (142) totally inserted while trapped inside a unit angle of less than a critical angle is reflected totally by the microlens array structure to reduce the multiple reflection goes out through the inorganic extracted free.

In other words one in the embodiment according to organic light emitting display device (100) is over coating layer (160) of the protrusions (162) is reduced in shape (of Figure 5 f3) switches the maximum slope floor slope is increased when the organic light emitting layer (142) to an angle of less than a critical angle in total reflection and multiply reflected the emitted light goes out through the inorganic may have maximum external light extraction efficiency.

On the other hand, over coating layer (162) connecting each of the periphery of the connection number 1 (161) to cause the inclination when the external light extraction efficiency can be increased. As also shown in the 3c convex portion (162) adjacent the bottom of two projections (162) intervals between displacement is 0 (G (Gap)) are disclosed. G 0 is greater than the two adjacent projections (162) intervals between which there effective reduces light emission region area of luminous efficiency this spacing distance (G) can be reduced by's oldest.

7a and 7b also includes a projection light path shown in the drawing according to maximum slope overcoated layer also are disclosed.

The reference also 7a and 7b also, over coating layer (160) of the protrusions (162) is also shown in the 5 floor slope is increased as switches may have a shape (shape of Figure 5 f3) reduced in maximum slope (Smax).

As also shown in 7a and 7b also, increased but the maximum slope (Smax) switches over coating layer having reduced in shape (shape of Figure 5 f3) (160) of the protrusions (162) the angle of the maximum slope even (Smax) may have a variety of shapes.

As also shown in 7a and 7b also, over coating layer (160) of the protrusions (162) (Smax) is 60 of exceeded maximum slope shape of high angular, e.g. 70 also (also 7a) or 65 (also 7b) also have light emitting region instead of 42 degrees or greater from start of travel of light when the angle managed to organic light-emitting device (140) and luminous efficiency increase is achieved either trapped therein may not be disclosed.

The, also 4b to 4d also shown in the over coating layer (160) of the protrusions (162) the shape of the convex portion (162) of maximum slope (Smax) is 40 to 60 when the effective light-emitting region (e.g. 50 also) may also proceed when a start angle of travel of light from the organic light emitting layer (142) in the light emitting organic light emitting device (140) not entrapped within luminous efficiency can be increased.

■Figure 8 over coating layer (160) of the protrusions (162) (Smax) and having a maximum slope of each organic light emitting display device of each of the various, according to current efficiency (current efficiency enhancement (%) (%) or enhancement of current efficiency) maximum slope (Smax) graph indicating the relationship between rising ratio are disclosed.

The reference also 8, over coating layer (160) of the protrusions (162) is less than 40 when the maximum slope (Smax), effective light emitting region progress angle being overmolded coating layer (160) planar organic light emitting element has been confirmed that there is little improved efficiency since it does precisely and safely. In addition over coating layer (160) of the protrusions (162) (Smax) is 60 exceeded maximum slope when it is a progress angle optical substrate (110) and the substrate (110) is larger than the angle of total reflection while air layer organic light emitting device (140) into a reference current to the light confined in the over-coating layer (160) have shown flat rather than an organic light emitting device and provides the result.

As also shown in the aforementioned also 4b to 4d over coating layer (160) of the protrusions (162) the shape of the convex portion (162) is 40 to 60 degree maximum slope (Smax) also starts to progress from effective light-emitting region when a angle of travel of light when the organic light emitting layer (142) in the light emitting organic light emitting device (140) not entrapped within luminous efficiency can be increased.

As aforementioned, is also 4b to 4d over coating layer (160) of the protrusions (162) with reference to the height (H) when a woman's urethral region (C) number 1 to number 3 region (A) the maximum slope (Smax) is positioned the over coating layer (160) of projections (162) etc. are shown.

The convex portion (162) for aspect ratio aspect ratio of the ratio of the aspect ratio (F_A/R) anti-heightanti-height (Rm) on aspect ratio (A/R) rate (Smax) number 1 region having a region most rapid maximum slope (C) (A) associating variables can determine whether present as to number 3 region. The convex portion (162) for anti-height (Rm) aspect ratio aspect ratio of ratio of 1. 0 if less than, the maximum slope (Smax) number 1 region (C) have a zone that are disclosed. The convex portion (162) for anti-height (Rm) aspect ratio aspect ratio of ratio of 1. 0 maximum slope (Smax) when the number 2 region (B) have a zone that are disclosed. The convex portion (162) for anti-height (Rm) aspect ratio aspect ratio of ratio of 1. 0 have a zone that is greater than maximum slope (Smax) when (A) number 3 region are disclosed.

Also 4b to 4d also shown in the organic light emitting layer (142) when the intensity of the transmitted light emitting heat convex portion (162) (Smax) units (H) from a maximum slope of a woman's urethral floor number 1 to number 3 reference number 3 (A) that is adjacent the region among the normal position when the front best luminous efficiency can be boosted. Secondly the organic light-emitting device (140) 50 is such efficiency light emitting region (Y) is locally concentrated electric field in emitting primary current path is formed while primary and deep-seated over coating layer (160) of number 1 connection (1622) (Z) used to light emitting region extracted in inefficiency substantially, but the maximum number 1 region (C) number 1 and number 2 and number 2 region (B) site (C) transformed into the region (B) greater luminous efficiency area can fall disclosed.

Or more over-coating layer (160) convex parts (162) and including the convex portion (162) according to the shape of the light extraction efficiency or light emitting efficiency are described. Hereinafter over coating layer (160) even when the concave portion may comprise a convex portion (162) according to the same concave shape of external light extraction efficiency or a 9 which has a luminescence efficiency also a through a browser substrate.

Figure 9 shows a plurality of recesses including overcoated layer including organic light emitting display device in the embodiment according to another to account for cross section are disclosed.

The reference also 9, in the embodiment according to other organic light emitting display device (200) is also of organic light emitting display device also 1 to 2b (100) compared to the over coating layer (260) is a plurality of recesses (236) including a user's personal persona being provided only, since other configurations are substantially identical, redundant description is omitted as follows. The organic light emitting device not shown in Figure 9 (200) the elements are organic light emitting display device according to one in the embodiment described with reference to also 1 to also 2b (100) elements can be the same.

Over-coating layer (260) (not shown) provided in the overlapping the color filter with a plurality of recesses (264) of mutually adjacent recess (264) connecting connection number 2 (263) without using a tool. In other words over coating layer (260) is also shown in the bank layer 1 (136) opening (136a) arranged to be overlapping with a plurality of recesses (264) and recessed (264) each connecting the plurality of connection number 2 (263) without using a tool.

Over-coating layer (260) number 1 on electrode (241) disposed thereon. The organic light emitting layer on the number 1 (242) and number 2 electrode (243) disposed thereon. Number 1 electrode (241) of an organic light emitting layer (242), number 2 electrode (243) the organic (240) constituting other.

Number 1 electrode (241), the organic light emitting layer (242) and number 2 electrode (243) over coating layer (260) is arranged at the upper surface of the shape of, over coating layer (260) may have shape along's morphology.

Also 3a to 3b over coating layer as a also through a browser (160) of the protrusions (162) is smaller than radius of anti-height width (F) (D/2) equal to the over-coating layer (260) of recess (264) (F) (D/2) is radius of anti-height width may be less than disclosed. The recess (264) for anti-height width (F) (D/2) radius ratio of 0. 1 hereinafter implementation being.

Also 3a to 3b over coating layer as a also through a browser (160) is greater than an aspect ratio of a projection on the aspect ratio (F_A/R) anti-height (A/R) is connected to the over coating layer (260) of recesses (264) of the aspect ratio can be greater than (A/R) anti-height aspect ratio (F_A/R). The recess (264) for anti-height aspect ratio aspect ratio of (A/R) (F_A/R) is 1. 0 can be greater than.

The recess (264) is 1 to 5 micro m and diameter, 1 to 4 be a hexagonal micro m in height.

As described with reference to the over coating layer also 4b to 5 also (160) of the protrusions (162) is increased but the maximum slope in switches having decreasing shape equal to the over coating layer (260) of recesses (264) is increased but the maximum slope (Smax) switches the floor may have decreasing in shape.

Also as described with reference to also 7a to 8 over coating layer (160) of the protrusions (162) 40 to 60 degree maximum slope is also equal to the over-coating layer (260) of recesses (264) also be maximum slope is 40 to 60 ssvtr.

Or more over-coating layer (260) the concave portion (264) also include organic light emitting display device is described with reference to when 1 (100) over coating layer (160) of the protrusions (162) the same concave portion (264) according to the shape of external light extraction efficiency or described but which has a luminescence efficiency, variables according to omit recess (264) and number 2 connection (263) according to characteristics of the protruding parts (162) and number 1 connection (161) with reference to the described above are the same. Figure 10 shows a schematic diagram of the organic light emitting display device according to the invention in the embodiment a system configuration are disclosed.

10 also reference surface, the organic light emitting display device in the embodiment according to the (300) includes, a plurality of data line (DL) (GL) is disposed and a plurality of gate lines, a plurality of subpixel (SP) arranged in a matrix type organic light emitting display panel (310) and, by supplying a plurality of data line driver outputs a plurality of data line driver (320) on, sequentially supplies scan signal by a plurality of gate lines, a plurality of gate line and the gate driver sequentially (330) on, data driver (320) and a gate driver (330) a number plower controller (340) etc..

The organic light emitting display panel are in the embodiment according to (310) each have a plurality of pixels disposed, described with reference to organic light emitting thin film transistor and also 1 comprising.

also

In the embodiment according to the aforementioned, organic light emitting display device comprises an outer light emitting efficiency, power consumption may be equal to or less than.

A feature of the present invention illustratively attached described and more provided revealing the secret key are in the drawing, the present invention essentially from deviating from a person with skill in the art in the field of the present invention is provided if the properties of inputted configuration, separation, a variety of modifications and deformable substitution and change will. Thus, the present invention in the embodiment of the present invention are to define the disclosure but rather to explain the feature and, in the embodiment of the present invention by not the limited range of such feature. Under the protection range of the present invention must be interpreted by fee so as to range, and the range of the present invention feature in a range equal to all rights will be interpreted.