WO2014029148A1 - 复合相位延迟片及其应用的有机发光显示装置 - Google Patents

复合相位延迟片及其应用的有机发光显示装置 Download PDF

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Publication number
WO2014029148A1
WO2014029148A1 PCT/CN2012/081461 CN2012081461W WO2014029148A1 WO 2014029148 A1 WO2014029148 A1 WO 2014029148A1 CN 2012081461 W CN2012081461 W CN 2012081461W WO 2014029148 A1 WO2014029148 A1 WO 2014029148A1
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Prior art keywords
organic light
emitting display
quarter
phase retarder
display device
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PCT/CN2012/081461
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English (en)
French (fr)
Inventor
杨赞
萧嘉强
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深圳市华星光电技术有限公司
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Priority to US13/636,923 priority Critical patent/US9172062B2/en
Publication of WO2014029148A1 publication Critical patent/WO2014029148A1/zh

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    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/86—Arrangements for improving contrast, e.g. preventing reflection of ambient light
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
    • G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
    • G02B30/22—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type
    • G02B30/25—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type using polarisation techniques
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3083—Birefringent or phase retarding elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/332—Displays for viewing with the aid of special glasses or head-mounted displays [HMD]
    • H04N13/337—Displays for viewing with the aid of special glasses or head-mounted displays [HMD] using polarisation multiplexing
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/8791—Arrangements for improving contrast, e.g. preventing reflection of ambient light
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2213/00—Details of stereoscopic systems
    • H04N2213/001—Constructional or mechanical details
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/87—Passivation; Containers; Encapsulations
    • H10K59/873—Encapsulations
    • H10K59/8731—Encapsulations multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers

Definitions

  • the present invention relates to a composite phase retarder and an organic light emitting display device therefor, and more particularly to an organic light emitting display (Organic) Light Emitting Display (OLED) composite phase retarder and its display device.
  • organic light emitting display Organic Light Emitting Display
  • liquid crystal displays Liquid Crystal
  • electroluminescence Electro Luminenscence, EL
  • organic light emitting display OLEDs
  • the organic light-emitting display has many performance characteristics such as ultra-light, ultra-thin, all solid state, active illumination, high response speed, etc., and is therefore quite suitable for use in a flat panel display.
  • LCDs liquid crystal displays
  • 3D three Dimension
  • the present invention provides a composite phase retarder and an organic light emitting display device therefor, which solve the problem of improving an existing organic light emitting display.
  • a main object of the present invention is to provide a composite phase retarder for an organic light emitting display device, the composite phase retarder comprising:
  • a patterned phase retarder is disposed on the polarizing film.
  • Another object of the present invention is to provide an organic light emitting display device, the organic light emitting display device comprising:
  • Composite phase retarder including:
  • a patterned phase retarder is disposed on the polarizing film.
  • the patterned phase retarder comprises a plurality of half-wavelength phase difference cell columns and a plurality of groups of isotropic material cells arranged in a staggered manner.
  • the patterned phase retarder further includes a full quarter-wave phase difference plate, and the full quarter-wave phase difference plate is close to the light-emitting side of the patterned phase retarder.
  • the patterned phase retarder includes a plurality of first quarter-wave phase difference unit columns and a plurality of second quarter-wave phase difference unit columns staggered.
  • the slow axis of the first quarter-wavelength phase difference cell column is a slow axis perpendicular to the second quarter-wavelength phase difference cell column.
  • the composite phase retarder further comprises a triacetate film for protecting and supporting the film in the composite phase retarder.
  • the composite phase retarder further includes a protective film located on a light exiting side of the composite phase retarder.
  • the composite phase retarder further includes an adhesive layer for attaching the quarter-wave retardation film to the organic light-emitting display panel.
  • the quarter-wave retarder is a cathode adjacent to the organic light-emitting display panel.
  • the organic light emitting display panel includes a protective layer on a light emitting side of the organic light emitting display panel.
  • the composite phase retarder of the present invention can be disposed on an organic light emitting display panel for forming a 3D visual effect. Furthermore, the ⁇ /4 phase difference plate and the polarizing film of the composite phase retarder can effectively absorb external ambient light to reduce the influence of ambient light on display contrast and ensure the display quality of the organic light emitting display device. Therefore, the organic light-emitting display device of the present invention can display 3D images and can ensure display contrast. Moreover, by the composite phase retarder, the attaching step and the overall thickness of the sheet can be reduced, which is advantageous for reducing the processing time and improving the 3D viewing angle.
  • FIG. 1 is a schematic view of an embodiment of an organic light emitting display device of the present invention.
  • FIG. 2 is a schematic view of an embodiment of an organic light emitting display panel of the present invention.
  • FIG. 3 is a schematic view of an embodiment of a patterned phase retarder of the present invention.
  • FIG. 4 is a schematic view of another embodiment of a patterned phase retarder of the present invention.
  • Fig. 5 is a schematic view showing still another embodiment of the composite phase retarder of the present invention.
  • the word “comprising” is to be understood to include the component, but does not exclude any other component.
  • “on” means located above or below the target component, and does not mean that it must be on the top based on the direction of gravity.
  • FIG. 1 is a schematic diagram of an embodiment of an organic light emitting display device of the present invention.
  • the organic light-emitting display device 100 of the present embodiment can display a three-dimensional (3D) image.
  • the user can wear a polarized glasses (not shown) to feel the 3D image effect.
  • the organic light-emitting display device 100 can include an organic light-emitting display panel 110 and a composite phase retarder 120 disposed on the light-emitting side of the organic light-emitting display panel 110 for forming a 3D image effect.
  • FIG. 2 is a schematic diagram of an embodiment of an organic light emitting display panel of the present invention.
  • the organic light emitting display panel 110 of the present embodiment may include a substrate 111, a first electrode 112, an organic light emitting layer 113, a second electrode 114, and a protective layer 115.
  • the first electrode 112, the organic light-emitting layer 113, the second electrode 114, and the protective layer 115 are sequentially formed on the substrate 111.
  • the substrate 110 can be, for example, a glass substrate, a flexible plastic substrate, a wafer substrate, or a heat dissipation substrate.
  • the substrate 110 can include a plurality of pixel regions (not shown), a plurality of signal lines (not shown), and a switch assembly (not shown).
  • Signal lines can be used to transmit signals, such as scan signals, data signals, or test signals. These signal lines may be, for example, vertically arranged data lines and horizontally arranged gate lines, which are alternately arranged to form a matrix-arranged pixel area for displaying an image.
  • the switch component is, for example, a thin film transistor (TFT) disposed in each pixel region and electrically connected to adjacent signal lines.
  • TFT thin film transistor
  • the organic light emitting display panel 110 may be a top-emitting organic light emitting component.
  • the first electrode 112 is formed on the substrate 110 to serve as an anode.
  • the second electrode 114 can be adjacent to the light emitting side of the organic light emitting display panel 110 to serve as a cathode.
  • the material of the first electrode 112 is preferably a high reflectivity metal such as silver, silver oxide, gold, aluminum or any alloy thereof.
  • the second electrode 114 is preferably a transparent conductive material such as ITO, IZO, AZO, GZO, TCO or ZnO.
  • the organic light emitting layer 113 is formed between the first electrode 112 and the second electrode 114.
  • the organic light-emitting layer 113 may include a hole injection layer, a hole transport layer, a light-emitting material layer (for example, a white light or a different color organic light-emitting material layer), an electron transport layer, and an electron injection layer, which may be sequentially Stacked on the first electrode 112.
  • the organic light-emitting layer 113 can drive the light through the current provided by the switch assembly, and then emit light to the outside via the transparent second electrode 114 and the protective layer 115. Further, part of the light emission of the organic light-emitting layer 113 can be reflected by the first electrode 112, and the second electrode 114 emits.
  • the protective layer 115 is located on the light emitting side of the organic light emitting display panel 110 for protecting the second electrode 114 from the external environment.
  • the protective layer 115 may include a plurality of sub-protective layers 116 and a plurality of organic layers 117.
  • the sub-protective layer 116 and the organic layer 117 may be alternately stacked on the second electrode 114.
  • the material of the sub-protective layer 116 is, for example, nitrided. Silicon and/or silicon oxide (SiNx and/or SiOx), the organic layer 117 is for preventing the sub-protective layer 116 from being brittle to ensure the structure of the protective layer 115.
  • the composite phase retarder 120 is adjacent to the second electrode 114 of the organic light emitting display panel 110 , that is, close to the light emitting side of the organic light emitting display panel 110 for forming left-hand circularly polarized light or right-hand circularly polarized light. .
  • the composite phase retarder 120 is disposed on the protective layer 115 of the organic light emitting display panel 110.
  • the composite phase retarder 120 includes a quarter-wavelength ( ⁇ /4) phase difference plate 121, a polarizing film 122, and a patterned phase retarder 123.
  • the ⁇ /4 phase difference plate 121 is for bonding to the organic light-emitting display panel 110.
  • the polarizing film 122 is disposed on the ⁇ /4 retardation film 121, and the patterned phase retarder 123 is disposed on the polarizing film 122.
  • the thickness of the composite phase retarder 120 may be less than or equal to 1.5 millimeters (mm), such as less than or equal to 0.8 millimeters (mm).
  • the ⁇ /4 phase difference plate 121, the polarizing film 122, and the patterned phase retarder 123 of the composite phase retarder 120 may be previously bonded by a roller (not shown). In one piece, the composite phase retarder 120 is then attached to the organic light-emitting display panel 110. In another embodiment, the composite phase retarder 120 may further include a second protective film (not shown) disposed on both sides of the composite phase retarder 120 to protect the composite phase retarder 120.
  • the ⁇ /4 phase difference plate 121 can be adjacent to the second electrode 114 of the organic light-emitting display panel 110, and the polarizing film 122 is disposed on the ⁇ /4 phase difference plate 121 and the patterned phase retarder 123.
  • the polarizing film 122 is, for example, polyvinyl alcohol (Poly Vinyl Alcohol, PVA) film.
  • the ⁇ /4 phase difference plate 121 and the polarizing film 122 can be equivalent to a circularly polarized film, so that the external light after the polarizing film 122 and the ⁇ /4 retardation film 121 are sequentially converted into circular polarization. Light.
  • the converted circularly polarized light is reflected back to the circularly polarized light ( ⁇ /4 phase difference plate 121 and the polarizing film 122) on the organic light emitting display panel 110 by the first electrode 112, the reflected circularly polarized light can be circularly biased.
  • the light sheet is absorbed. Therefore, the external light can be absorbed by the ⁇ /4 phase difference plate 121 and the polarizing film 122 on the organic light-emitting display panel 110 to reduce the influence of the ambient light on the display contrast, and the display quality of the organic light-emitting display device 100 is ensured.
  • FIG. 3 is a schematic diagram of an embodiment of a patterned phase retarder according to the present invention.
  • the patterned phase retarder 123 is disposed on the light exiting side of the composite phase retarder 120 for forming left-hand circularly polarized light or right-hand circularly polarized light.
  • the patterned phase retarder 123 may include a plurality of half-wavelength ( ⁇ /2) phase difference cell columns 124 and a plurality of isotropic material cell columns 125, ⁇ /2 phase difference cell columns 124.
  • the rows of isotropic material cells 125 are staggered such that adjacent ⁇ /2 phase difference cell columns 124 have a predetermined spacing between them, i.e., the width of the isotropic material cell columns 125.
  • the ⁇ /2 phase difference unit column 124 is a pair of right-eye pixel columns (not shown) located in the organic light-emitting display panel 110
  • the isotropic material unit column 125 is a pair of left-eye pixel columns (not shown) located on the organic light-emitting display panel 110.
  • the right and left eye pixel columns of the organic light emitting display panel 110 are respectively located in odd and even pixel columns of the organic light emitting display panel 110.
  • the ⁇ /2 phase difference cell row 124 has the characteristics of a general ⁇ /2 phase difference plate. Further, in the patterned phase retarder 123 of the present embodiment, the polarized light after passing through the ⁇ /2 phase difference cell column 124 and the isotropic material cell column 125 can be respectively converted by a full ⁇ /4 phase difference plate. For left-hand circularly polarized light or right-hand circularly polarized light.
  • the patterned phase retarder 123 may include a plurality of first ⁇ /4 phase difference cell columns 224 and a plurality of second ⁇ /4 phase difference cell columns 225, the first ⁇ /4 phase difference cell column
  • the 224 and the second ⁇ /4 phase difference cell columns 225 are staggered and respectively paired with the right and left eye pixel columns of the organic light-emitting display panel 110.
  • the ⁇ /4 phase difference cell columns 224, 225 have the characteristics of a general ⁇ /4 phase difference plate, and the slow axis of the first ⁇ /4 phase difference cell column 224 is preferably perpendicular to the second ⁇ /4 phase difference cell column. Slow axis of 225. Therefore, the linearly polarized light from the polarizing film 122 can be converted into left-hand circularly polarized light or right-hand circularly polarized light by the ⁇ /4 phase difference cell arrays 224 and 225, respectively.
  • the composite phase retarder 120 may include a ⁇ /4 phase difference plate 321, a polarizing film 322, a patterned phase retarder 323, and two triacetates (Triacetyl).
  • Cellulose, TAC Cellulose, TAC
  • the TAC film 327 and the protective film 328 may be stacked in sequence.
  • the patterned phase retarder 323 may include phase difference cell columns 324, 325 and a full ⁇ /4 phase difference plate 326, the phase difference cell columns 324, 325 being staggered and having a ⁇ /2, ⁇ /4 or zero ⁇ phase delay,
  • the full ⁇ /4 phase difference plate 326 is close to the light exiting side of the patterned phase retarder 323.
  • the TAC film 327 is used to protect and support the film in the composite phase retarder 120.
  • the protective film 328 is located on the light exiting side of the composite phase retarder 120 for protecting the composite phase retarder 120, and the adhesive layer 329. It is used to attach the ⁇ /4 phase difference plate 321 to the organic light-emitting display panel 110.
  • the composite phase retarder 120 may further include a removal film (release)
  • the film 301 is disposed on the outer side of the adhesive layer 329 to prevent the adhesive layer 329 from adhering to other objects than the organic light-emitting display panel 110.
  • the polarizing glasses can be used together (Polarizer). Glasses) to form a stereoscopic image effect.
  • the patterned phase retarder 123 of the composite phase retarder 120 can convert the linearly polarized light emitted by the polarizing film 122 into left-hand circularly polarized light or right-hand circularly polarized light.
  • the left-hand circularly polarized light or the right-hand circularly polarized light can only penetrate the one side (right side or the left side) lens of the polarized glasses respectively, that is, the user's eyes can respectively see different pixel columns of the organic light-emitting display panel 110.
  • the images of the (right and left eye pixel columns) can thus form a stereoscopic image effect.
  • the composite phase retarder of the present invention can be disposed on an organic light emitting display panel for forming left-hand circularly polarized light or right-hand circularly polarized light, and thus can be combined with polarized glasses to form a 3D visual effect.
  • the ⁇ /4 phase difference plate and the polarizing film of the composite phase retarder can effectively absorb external ambient light to reduce the influence of ambient light on display contrast and ensure the display quality of the organic light emitting display device.
  • the composite phase retarder can integrate the ⁇ /4 retardation film, the polarizing film, and the patterned phase retarder at the same time, the attaching step and the overall thickness can be reduced, which is advantageous for reducing the processing time and improving the 3D viewing angle.

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  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
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Abstract

提供了一种复合相位延迟片（120）及其应用的有机发光显示装置（100）。有机发光显示装置（100）包括有机发光显示面板（110）及复合相位延迟片（120），复合相位延迟片（120）包括依序堆迭的四分之一波长相位差片（121）、偏光膜（122）及图案化相位延迟片（123）。该有机发光显示装置（100）可用于显示3D影像，并可确保有机发光显示装置（100）的显示对比度。

Description

复合相位延迟片及其应用的有机发光显示装置 技术领域
本发明涉及一种复合相位延迟片及其应用的有机发光显示装置，特别是涉及一种用于有机发光显示器(Organic Light Emitting Display，OLED)的复合相位延迟片及其应用的显示装置。
 背景技术
近年来，随着科技的进步，许多不同的显示装置，例如液晶显示器(Liquid Crystal Display，LCD)、电激发光(Electro Luminenscence，EL)显示器或有机发光显示器(OLED)已应用于平面显示器。有机发光显示器具备了超轻、超薄、全体固态、主动发光、响应速度高等许多的性能特色，因而相当适合应用于平面显示器。
目前，液晶显示器(LCD)已被广泛应用于三维(three dimension，3D)显示器中。然而，具有立体影像显示功能的有机发光显示器仍需进行开发。
再者，在一般的有机发光显示器中，外界的光线容易被有机发光显示器的金属电极所反射，而容易影响有机发光显示器的显示对比度。
故，有必要提供一种复合相位延迟片及其应用的有机发光显示装置，以解决现有技术所存在的问题。
 技术问题
本发明提供一种复合相位延迟片及其应用的有机发光显示装置，以解决改善现有有机发光显示器的问题。
 技术解决方案
本发明的主要目的在于提供一种复合相位延迟片，用于有机发光显示装置，所述复合相位延迟片包括：
四分之一波长相位差片，用于贴合于一有机发光显示面板上；
偏光膜，设置于所述四分之一波长相位差片上；以及
图案化相位延迟片，设置于所述偏光膜上。
本发明的另一目的在于提供一种有机发光显示装置，所述有机发光显示装置包括：
有机发光显示面板；以及
复合相位延迟片，包括：
四分之一波长相位差片，用于贴合于所述有机发光显示面板上；
偏光膜，设置于所述四分之一波长相位差片上；以及
图案化相位延迟片，设置于所述偏光膜上。
在本发明的一实施例中，所述图案化相位延迟片包括交错排列的多个二分之一波长相位差单元列及多个等向性材料单元列。
在本发明的一实施例中，所述图案化相位延迟片还包括全四分之一波长相位差片，所述全四分之一波长相位差片是靠近于图案化相位延迟片的出光侧。
在本发明的一实施例中，所述图案化相位延迟片包括交错排列的多个第一四分之一波长相位差单元列及多个第二四分之一波长相位差单元列，所述第一四分之一波长相位差单元列的慢轴是垂直于所述第二四分之一波长相位差单元列的慢轴。
在本发明的一实施例中，所述复合相位延迟片还包括三醋酸纤维膜，用于保护和支撑所述复合相位延迟片中的薄膜。
在本发明的一实施例中，所述复合相位延迟片还包括保护膜，其位于所述复合相位延迟片的出光侧。
在本发明的一实施例中，所述复合相位延迟片还包括黏着层，用于将所述四分之一波长相位差片贴合于所述有机发光显示面板上。
在本发明的一实施例中，所述四分之一波长相位差片是靠近于所述有机发光显示面板的阴极。
在本发明的一实施例中，所述有机发光显示面板包括保护层，位于所述有机发光显示面板的发光侧。
 有益效果
本发明的复合相位延迟片可设置于有机发光显示面板上，用于形成3D视觉效果。再者，复合相位延迟片的λ/4相位差片及偏光膜可有效地吸收外界环境光，以降低外界环境光对显示对比度的影响，确保有机发光显示装置的显示质量。因此，本发明的有机发光显示装置可显示3D影像，并可确保其显示对比度。又，通过复合相位延迟片，可减少薄片的贴附步骤及整体厚度，有利于减少制程时间并改善3D视角。
 附图说明
图1为本发明有机发光显示装置的一实施例的示意图；
图2为本发明有机发光显示面板的一实施例的示意图；
图3为本发明图案化相位延迟片的一实施例的示意图；
图4为本发明图案化相位延迟片的另一实施例的示意图；以及
图5为本发明复合相位延迟片的又一实施例的示意图。
 本发明的最佳实施方式
以下各实施例的说明是参考附加的图式，用以例示本发明可用以实施的特定实施例。本发明所提到的方向用语，例如「上」、「下」、「前」、「后」、「左」、「右」、「内」、「外」、「侧面」等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本发明，而非用以限制本发明。
附图和说明被认为在本质上是示出性的，而不是限制性的。在图中，结构相似的单元是以相同标号表示。另外，为了理解和便于描述，附图中示出的每个组件的尺寸和厚度是任意示出的，但是本发明不限于此。
在附图中，为了清晰起见，夸大了层、膜、面板、区域等的厚度。在附图中，为了理解和便于描述，夸大了一些层和区域的厚度。将理解的是，当例如层、膜、区域或基底的组件被称作“在”另一组件“上”时，所述组件可以直接在所述另一组件上，或者也可以存在中间组件。
另外，在说明书中，除非明确地描述为相反的，否则词语“包括”将被理解为意指包括所述组件，但是不排除任何其它组件。此外，在说明书中，“在......上”意指位于目标组件上方或者下方，而不意指必须位于基于重力方向的顶部上。
请参照图1，其为本发明有机发光显示装置的一实施例的示意图。本实施例的有机发光显示装置100可显示三维(3D)影像，当观看有机发光显示装置100所显示的3D影像时，使用者可戴上一偏光眼镜(未显示)来感受3D影像效果。此有机发光显示装置100可包括有机发光显示面板110及复合相位延迟片120，复合相位延迟片120是设置于有机发光显示面板110的发光侧，用于形成3D影像效果。
请参照图2，其为本发明有机发光显示面板的一实施例的示意图。本实施的有机发光显示面板110可包括基板111、第一电极112、有机发光层113、第二电极114及保护层115。第一电极112、有机发光层113、第二电极114及保护层115是依序形成于基板111上。基板110可例如为玻璃基板、可挠性塑料基板、晶圆基板或散热基板，基板110可包括多个像素区(未显示)、多条信号线(未显示)及开关组件(未显示)，信号线可用以传送信号，例如扫描信号、数据信号或测试信号。这些信号线例如可为垂直配置的数据线和水平配置的栅极线，其相互交错地配置，而形成矩阵式排列的像素区，用以显示影像。开关组件例如为薄膜晶体管(TFT)，其设置于每一像素区中，并电性连接于相邻的信号线。
如图2所示，在本实施例中，有机发光显示面板110可为上发光型(Top-emitting)有机发光组件。此时，第一电极112是形成于基板110上，用以作为阳极。而第二电极114可靠近于有机发光显示面板110的发光侧，用以作为阴极。第一电极112的材料优选为高反射率的金属，例如银、氧化银、金、铝或其任意合金。第二电极114优选为透明导电材料，例如：ITO、IZO、AZO、GZO、TCO或ZnO。有机发光层113是形成于第一电极112与第二电极114之间。在一实施例中，有机发光层113可包括电洞注入层、电洞传输层、发光材料层(例如白光或不同色的有机发光材料层)、电子传输层及电子注入层，其可依序堆叠于第一电极112上。其中，有机发光层113可经由开关组件所提供的电流来驱动发光，再经由透光的第二电极114及保护层115向外部发光。再者，有机发光层113的部分发光可被第一电极112所反射，而第二电极114发出。
如图2所示，保护层115是位于有机发光显示面板110的发光侧，用于保护第二电极114免于受到外界环境的影响。在本实施例中，保护层115可包括多个子保护层116及多个有机层117，子保护层116及有机层117可交错堆叠于第二电极114上，子保护层116的材料例如氮化硅及/或氧化硅(SiNx及/或SiOx)，有机层117是用于避免子保护层116发生脆裂，以确保保护层115的结构。
如图1所示，复合相位延迟片120是靠近于有机发光显示面板110的第二电极114，亦即靠近于有机发光显示面板110的发光侧，用于形成左手圆偏振光或右手圆偏振光。在本实施例中，复合相位延迟片120是设置于有机发光显示面板110的保护层115上。复合相位延迟片120包括四分之一波长(λ/4)相位差片121、偏光膜122及图案化相位延迟片123，λ/4相位差片121是用于贴合于有机发光显示面板110上，偏光膜122是设置于λ/4相位差片121上，图案化相位延迟片123是设置于偏光膜122上。其中，复合相位延迟片120的厚度可小于或等于1.5毫米(mm)，如小于或等于0.8毫米(mm)。
在一实施例中，当组装有机发光显示装置100时，复合相位延迟片120的λ/4相位差片121、偏光膜122及图案化相位延迟片123可预先利用滚轮(未显示)来黏合成一体，接着，复合相位延迟片120再贴合于有机发光显示面板110上。在另一实施例中，复合相位延迟片120更可包括二保护膜(未显示)，其设置于复合相位延迟片120的两侧，以保护复合相位延迟片120。
如图1和图2所示，λ/4相位差片121可靠近于有机发光显示面板110的第二电极114，偏光膜122是设置于λ/4相位差片121与图案化相位延迟片123之间，偏光膜122例如为聚乙烯醇(Poly vinyl alcohol，PVA)膜。在本实施例中，λ/4相位差片121及偏光膜122可等效于一圆偏偏光片，使得依序通过偏光膜122及λ/4相位差片121之后的外界光线转换成圆偏振光。当转换后圆偏振光被第一电极112反射回有机发光显示面板110上的圆偏偏光片(λ/4相位差片121及偏光膜122)时，此被反射的圆偏振光可被圆偏偏光片所吸收。因此，外界光线可被有机发光显示面板110上的λ/4相位差片121及偏光膜122来吸收，以降低外界环境光对显示对比度的影响，确保有机发光显示装置100的显示质量。
请参照图1和图3，图3为本发明图案化相位延迟片的一实施例的示意图。图案化相位延迟片123是设置于复合相位延迟片120的出光侧，用于形成左手圆偏振光或右手圆偏振光。在本实施例中，图案化相位延迟片123可包括多个二分之一波长(λ/2)相位差单元列124及多个等向性材料单元列125，λ/2相位差单元列124与等向性材料单元列125是交错排列，因而相邻的λ/2相位差单元列124之间具有一预设间距，即等向性材料单元列125的宽度。λ/2相位差单元列124是对位于有机发光显示面板110的右眼像素列(未显示)，等向性材料单元列125是对位于有机发光显示面板110的左眼像素列(未显示)，有机发光显示面板110的右、左眼像素列分别位于有机发光显示面板110的奇、偶数像素列。其中，λ/2相位差单元列124具有一般λ/2相位差板的特性。又，在本实施例的图案化相位延迟片123中，可通过一全λ/4相位差片，分别将通过λ/2相位差单元列124与等向性材料单元列125之后的偏振光转换为左手圆偏振光或右手圆偏振光。
请参照图4，其为本发明图案化相位延迟片的另一实施例的示意图。在另一实施例中，图案化相位延迟片123可包括多个第一λ/4相位差单元列224及多个第二λ/4相位差单元列225，第一λ/4相位差单元列224及第二λ/4相位差单元列225是交错排列，并分别对位于有机发光显示面板110的右、左眼像素列。其中，λ/4相位差单元列224、225具有一般λ/4相位差板的特性，且第一λ/4相位差单元列224的慢轴优选是垂直于第二λ/4相位差单元列225的慢轴。因此，通过λ/4相位差单元列224、225，可分别将由偏光膜122来的线偏光转换为左手圆偏振光或右手圆偏振光。
请参照图5，其为本发明复合相位延迟片的又一实施例的示意图。在又一实施例中，复合相位延迟片120可包括λ/4相位差片321、偏光膜322、图案化相位延迟片323、二个三醋酸纤维(Triacetyl cellulose，TAC)膜327、保护膜328及黏着层329。黏着层329、λ/4相位差片321、TAC膜327、偏光膜322、图案化相位延迟片323 、TAC膜327及保护膜328可依序堆叠而成。图案化相位延迟片323可包括相位差单元列324、325及全λ/4相位差片326，相位差单元列324、325是交错排列且具有λ/2、λ/4或零λ相位延迟，全λ/4相位差片326是靠近于图案化相位延迟片323的出光侧。
如图5所示，TAC膜327是用于保护和支撑复合相位延迟片120中的薄膜，保护膜328是位于复合相位延迟片120的出光侧，用于保护复合相位延迟片120，黏着层329是用于将λ/4相位差片321贴合于有机发光显示面板110上。在复合相位延迟片120尚未贴合于有机发光显示面板110之前，复合相位延迟片120可更包括一移除膜(release film)301，移除膜301是设置于黏着层329的外侧，避免黏着层329黏着于有机发光显示面板110之外的其它物体。
如图1所示，当使用者观看有机发光显示装置100的立体影像时，可搭配偏光眼镜(Polarizer Glasses)来形成立体影像效果。此时，复合相位延迟片120的图案化相位延迟片123可将由偏光膜122所发出的线偏极化光转换为左手圆偏振光或右手圆偏振光。此时，由于左手圆偏振光或右手圆偏振光仅能分别穿透偏光眼镜的一侧(右侧或左侧)镜片，即使用者的双眼可分别看到有机发光显示面板110的不同像素列(右、左眼像素列)的影像，因而可形成立体影像效果。
由上述可知，本发明的复合相位延迟片可设置于有机发光显示面板上，用于形成左手圆偏振光或右手圆偏振光，因而可搭配偏光眼镜来形成3D视觉效果。再者，复合相位延迟片的λ/4相位差片及偏光膜可有效地吸收外界环境光，以降低外界环境光对显示对比度的影响，确保有机发光显示装置的显示质量。又，由于复合相位延迟片可同时整合λ/4相位差片、偏光膜、图案化相位延迟片成一体，因而可减少贴附步骤及整体厚度，有利于减少制程时间并改善3D视角。
综上所述，虽然本发明已以优选实施例揭露如上，但上述优选实施例并非用以限制本发明，本领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。
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Claims (18)

  1. 一种有机发光显示装置，包括：
    有机发光显示面板；以及
    复合相位延迟片，包括：
    四分之一波长相位差片，用于贴合于所述有机发光显示面板上；
    偏光膜，设置于所述四分之一波长相位差片上；
    图案化相位延迟片，设置于所述偏光膜上；以及
    黏着层，用于将所述四分之一波长相位差片贴合于所述有机发光显示面板上。
  2. 根据权利要求1所述的有机发光显示装置，其中所述图案化相位延迟片包括交错排列的多个二分之一波长相位差单元列及多个等向性材料单元列。
  3. 根据权利要求2所述的有机发光显示装置，其中所述图案化相位延迟片还包括全四分之一波长相位差片，所述全四分之一波长相位差片是靠近于所述图案化相位延迟片的出光侧。
  4. 根据权利要求1所述的有机发光显示装置，其中所述图案化相位延迟片包括交错排列的多个第一四分之一波长相位差单元列及多个第二四分之一波长相位差单元列，所述第一四分之一波长相位差单元列的慢轴是垂直于所述第二四分之一波长相位差单元列的慢轴。
  5. 根据权利要求1所述的有机发光显示装置，其中所述复合相位延迟片还包括三醋酸纤维膜，用于保护和支撑所述复合相位延迟片中的薄膜。
  6. 根据权利要求1所述的有机发光显示装置，其中所述复合相位延迟片还包括保护膜，其位于所述复合相位延迟片的出光侧。
  7. 根据权利要求1所述的有机发光显示装置，其中所述四分之一波长相位差片是靠近于所述有机发光显示面板的阴极。
  8. 根据权利要求1所述的有机发光显示装置，其中所述有机发光显示面板包括保护层，位于所述有机发光显示面板的发光侧。
  9. 一种复合相位延迟片，用于有机发光显示装置，其中所述复合相位延迟片包括：
    四分之一波长相位差片，用于贴合于一有机发光显示面板上；
    偏光膜，设置于所述四分之一波长相位差片上；以及
    图案化相位延迟片，设置于所述偏光膜上。
  10. 根据权利要求9所述的复合相位延迟片，其中所述图案化相位延迟片包括交错排列的多个二分之一波长相位差单元列及多个等向性材料单元列。
  11. 根据权利要求10所述的复合相位延迟片，其中所述图案化相位延迟片还包括全四分之一波长相位差片，所述全四分之一波长相位差片是靠近于图案化相位延迟片的出光侧。
  12. 根据权利要求9所述的复合相位延迟片，其中所述图案化相位延迟片包括交错排列的多个第一四分之一波长相位差单元列及多个第二四分之一波长相位差单元列，所述第一四分之一波长相位差单元列的慢轴是垂直于所述第二四分之一波长相位差单元列的慢轴。
  13. 根据权利要求9所述的复合相位延迟片，还包括三醋酸纤维膜，用于保护和支撑所述复合相位延迟片中的薄膜。
  14. 根据权利要求9所述的复合相位延迟片，还包括保护膜，其位于所述复合相位延迟片的出光侧。
  15. 根据权利要求9所述的复合相位延迟片，还包括黏着层，用于将所述四分之一波长相位差片贴合于所述有机发光显示面板上。
  16. 一种有机发光显示装置，包括：
    有机发光显示面板；以及
    复合相位延迟片，包括：
    四分之一波长相位差片，用于贴合于所述有机发光显示面板上；
    偏光膜，设置于所述四分之一波长相位差片上；以及
    图案化相位延迟片，设置于所述偏光膜上。
  17. 17.根据权利要求16所述的有机发光显示装置，其中所述四分之一波长相位差片是靠近于所述有机发光显示面板的阴极。
  18. 18.根据权利要求16所述的有机发光显示装置，其中所述有机发光显示面板包括保护层，位于所述有机发光显示面板的发光侧。
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