WO2013127095A1 - 三维显示面板及三维显示片的制造方法 - Google Patents

三维显示面板及三维显示片的制造方法 Download PDF

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Publication number
WO2013127095A1
WO2013127095A1 PCT/CN2012/072009 CN2012072009W WO2013127095A1 WO 2013127095 A1 WO2013127095 A1 WO 2013127095A1 CN 2012072009 W CN2012072009 W CN 2012072009W WO 2013127095 A1 WO2013127095 A1 WO 2013127095A1
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WIPO (PCT)
Prior art keywords
dimensional display
film
quarter
display panel
substrate
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PCT/CN2012/072009
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English (en)
French (fr)
Inventor
方斌
陈峙彣
萧嘉强
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深圳市华星光电技术有限公司
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Application filed by 深圳市华星光电技术有限公司 filed Critical 深圳市华星光电技术有限公司
Priority to US13/501,635 priority Critical patent/US20130222712A1/en
Priority to DE112012006006.7T priority patent/DE112012006006T5/de
Publication of WO2013127095A1 publication Critical patent/WO2013127095A1/zh

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
    • G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
    • 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
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528—Polarisers

Definitions

  • the present invention relates to a method for manufacturing a three-dimensional display panel and a three-dimensional display sheet, and more particularly to a method for manufacturing a three-dimensional display panel for displaying a three-dimensional image and a three-dimensional display sheet.
  • Liquid crystal display (Liquid Crystal Display, LCD) has been widely used in a variety of electronic products, most of the liquid crystal display is a backlight type liquid crystal display, which is composed of a display panel and a backlight module (backlight Module).
  • liquid crystal displays can have stereoscopic image display functions, such as graphical phase retardation film three-dimensional displays (three dimensions)
  • a pattern retarder display includes a quarter-wave phase retarder disposed outside the liquid crystal display.
  • a patterned phase retardation film three-dimensional display uses a pixel of its odd column (or even column) as a left eye pixel (left image). Pixels), while other series of pixels are used as right eye pixels (right image Pixels), when the light of the liquid crystal display passes through differently aligned quarter-wave phase retarders, the light will form left circularly polarized light and right circularly polarized light, respectively. Users can match round polarized glasses with different polarization directions (circular The polarizer glasses enable the left eye of the user to see only the image displayed by the left eye pixel, while the right eye can only see the image displayed by the right eye pixel, thereby achieving the effect of the three-dimensional image.
  • the existing three-dimensional display is squinted, the light emitted by the three-dimensional display is likely to be non-circularly polarized light (such as elliptically polarized light), which is liable to cause image crosstalk and affect the three-dimensional display quality, that is, the existing three-dimensional display is easy to have.
  • Perspective Angle a problem that is liable to cause image crosstalk and affect the three-dimensional display quality, that is, the existing three-dimensional display is easy to have.
  • the invention provides a three-dimensional display panel and a manufacturing method of the three-dimensional display sheet, so as to solve the problem that the viewing angle range of the existing three-dimensional display is not good.
  • a main object of the present invention is to provide a three-dimensional display panel comprising: a first substrate; a second substrate; a liquid crystal layer formed between the first substrate and the second substrate; and a polarizer disposed on An outer side of the second substrate; and a three-dimensional display sheet disposed on an outer side of the first substrate, wherein the three-dimensional display sheet includes a protective film, a polarizing film, and a quarter-wave retardation film, the polarizing film and The quarter-wave retardation film is sequentially disposed on the protective film, and the outer surface of the quarter-wave retardation film is directly in contact with a medium, and the optical path difference of the medium is zero.
  • Another object of the present invention is to provide a three-dimensional display panel comprising: a first substrate; a second substrate; a liquid crystal layer formed between the first substrate and the second substrate; and a polarizer; An outer side of the second substrate; and a three-dimensional display sheet disposed outside the first substrate, wherein the three-dimensional display sheet includes a protective film, a polarizing film, and a quarter-wave retardation film, the polarizing film And the quarter-wave retardation film is sequentially disposed on the protective film, and the outer surface of the quarter-wave retardation film is directly in contact with a medium, and the optical path difference of the medium is Zero, the inner surface of the quarter-wave phase difference plate is in direct contact with the polarizing film, and the medium is a zero retardation film.
  • Still another object of the present invention is to provide a method for manufacturing a three-dimensional display panel of a three-dimensional display panel, comprising the steps of: providing a polarizing film; and attaching a protective film and a quarter-wave retardation film to the polarized light, respectively.
  • the three-dimensional display panel further includes another protective film disposed between the polarizing film and the quarter-wave phase difference plate.
  • the inner surface of the quarter-wave phase difference plate is in direct contact with the polarizing film.
  • the medium is air.
  • the medium is a zero retardation film.
  • the zero retardation film is a zero retardation triacetate film.
  • the polarizing film is a polyvinyl alcohol film.
  • the protective film and the quarter-wave retardation film are respectively attached to opposite sides of the polarizing film
  • the protective film and another protection are first applied.
  • the films are respectively attached to opposite sides of the polarizing film, and the quarter-wavelength phase difference is attached to the other protective film.
  • the three-dimensional display panel of the present invention and the manufacturing method thereof can reduce the undesired optical path difference between the three-dimensional display panel and the user's polarized glasses, and can improve the present There are viewing angle issues for the 3D display and ensuring the display quality of the 3D display panel.
  • FIG. 1 is a partial cross-sectional view showing an embodiment of a three-dimensional display panel of the present invention
  • FIG. 2 is a cross-sectional viewing angle range diagram of a quarter-wave retardation film of a three-dimensional display sheet of the present invention when a triacetate (TAC) film is attached;
  • TAC triacetate
  • FIG. 3 is a cross-sectional view of a cross-talk angle when the outside of the quarter-wave retardation film of the three-dimensional display sheet of the present invention directly contacts the air;
  • FIG. 4 and FIG. 5 are schematic diagrams showing the manufacture of an embodiment of a three-dimensional display sheet according to the present invention.
  • Figure 6 is a partial cross-sectional view showing another embodiment of the three-dimensional display sheet of the present invention.
  • Figure 7 is a schematic view showing the manufacture of another embodiment of the three-dimensional display sheet of the present invention.
  • FIG. 8 is a cross-sectional view of a cross-talk angle when the outer side of the quarter-wave retardation film of the three-dimensional display sheet of the present invention directly contacts air;
  • Figure 9 is a partial cross-sectional view showing still another embodiment of the three-dimensional display sheet of the present invention.
  • FIG. 10 and FIG. 11 are schematic diagrams showing the manufacture of still another embodiment of the three-dimensional display sheet of the present invention.
  • FIG. 12 is a cross-sectional viewing angle range diagram of a quarter-wavelength retardation film of a three-dimensional display sheet of the present invention with a zero retardation film attached thereto;
  • Figure 13 is a partial cross-sectional view showing still another embodiment of the three-dimensional display sheet of the present invention.
  • Figure 14 is a schematic view showing the manufacture of still another embodiment of the three-dimensional display sheet of the present invention.
  • Fig. 15 is a cross-sectional viewing angle range diagram when a zero-interference retardation film is attached to the outer side of a quarter-wave retardation film of the three-dimensional display sheet of the present invention.
  • FIG. 1 is a partial cross-sectional view showing an embodiment of a three-dimensional display panel of the present invention.
  • the three-dimensional display panel 100 of the present embodiment can be used to display a three-dimensional image.
  • the three-dimensional display panel 100 can be assembled on a backlight module (not shown) to form a display device.
  • the three-dimensional display panel 100 is disposed relative to the backlight module, and the backlight module can be edge-lit (Edge)
  • a backlight module or a Bottom Lighting backlight module is provided to provide backlighting to the three-dimensional display panel 100.
  • the three-dimensional display panel 100 of the present embodiment may include a first substrate 110 , a second substrate 120 , a liquid crystal layer 130 , a polarizer 140 , and a three-dimensional display sheet 150 .
  • the substrate material of the first substrate 110 and the second substrate 120 may be a glass substrate or a flexible plastic substrate.
  • the first substrate 110 is, for example, a color filter (Color).
  • the second substrate 120 may be, for example, a Thin Film Transistor (TFT).
  • TFT Thin Film Transistor
  • a glass substrate of a matrix or a substrate of another material may also be disposed on the same substrate.
  • the liquid crystal layer 130 is formed between the first substrate 110 and the second substrate 120 , the polarizer 140 is disposed outside the second substrate 120 , and the three-dimensional display sheet 150 is disposed outside the first substrate 110 .
  • the three-dimensional display sheet 150 is for forming circularly polarized light
  • the three-dimensional display sheet 150 includes protective films 151 and 152, a polarizing film 153, and a quarter-wave retardation film 154.
  • the polarizing film 153 is disposed between the protective films 151 and 152
  • the quarter-wave retardation film 154 is disposed (bonded) on the protective film 152 for converting linearly polarized light emitted by the polarizing film 153 into circular polarization. Light.
  • the quarter-wave phase difference plate 154 has a medium between the polarizing glasses 102 of the user and the outer surface of the quarter-wave phase difference plate 154 is directly in contact with the medium, and the optical path difference of the medium (Retardation) Zero.
  • the first optical path difference R0 of the light which is perpendicularly emitted by the quarter-wave phase difference plate 154 after passing through the medium is zero, and is obliquely emitted by the quarter-wavelength retardation plate 154 (non-vertical The light emitted by the second optical path difference Rth after passing through the medium.
  • the two protective films 151 and 152 are, for example, triacetate (Triacetyl).
  • a cellulose, TAC film for protecting and supporting the polarizing film 153 and the quarter-wave retardation film 154.
  • the polarizing film 153 is adjacent to the first substrate 110 for converting light into linearly polarized light, and the polarizing film 153 is, for example, polyvinyl alcohol (Poly Vinyl alcohol, PVA) film.
  • the quarter-wave retardation plate 154 is located at the outermost side of the three-dimensional display panel 100, and the medium contacted by the outer surface of the quarter-wave retardation plate 154 may be air, and thus the first optical path The difference R0 and the second optical path difference Rth may be zero.
  • FIG. 2 is a cross-sectional viewing angle range of the outer surface of the quarter-wave retardation film 154 of the three-dimensional display sheet 150 of the present invention when a triacetate (TAC) film is attached
  • the TAC film is attached to the outer side surface of the quarter-wave retardation film 154, and the TAC film has different optical path differences in front view and squint, that is, R0.
  • the range of viewing angles shown in FIG. 3 is larger than that of the crosstalk viewing angle range shown in FIG. 2. Therefore, the three-dimensional display sheet 150 corresponding to FIG. 3 can have a large viewing angle range.
  • the quarter-wave phase difference plate 154 of the three-dimensional display sheet 150 is in direct contact with the air, the unintended optical path between the three-dimensional display panel 100 and the user's polarized glasses 102 can be eliminated or reduced. difference. Therefore, when the user wears the polarized glasses 102 to squint the three-dimensional display panel 100 of the embodiment, that is, when the light path between the user's eyes and the three-dimensional display panel 100 is not perpendicular to the plane of the three-dimensional display panel 100, Through the three-dimensional display sheet 150, an unexpected optical path difference between the three-dimensional display panel 100 and the user's polarized glasses 102 can be eliminated or reduced to reduce image crosstalk and improve the viewing angle problem of the existing three-dimensional display.
  • FIG. 4 and FIG. 5 are schematic diagrams showing the manufacture of an embodiment of the three-dimensional display sheet of the present invention.
  • the protective films 151 and 152 may be attached to opposite sides of the polarizing film 153 by using a roller.
  • the quarter-wavelength retardation film 154 is attached to the protective film 152 by a roller to form a three-dimensional display sheet 150.
  • the bonded three-dimensional display sheet 150 (the two protective films 151 and 152, the polarizing film 153, and the quarter-wave retardation film 154) can be dried by a drying device to complete the three-dimensional display sheet 150.
  • FIG. 6 is a partial cross-sectional view showing another embodiment of the three-dimensional display sheet of the present invention
  • FIG. 7 is a schematic view showing the manufacture of another embodiment of the three-dimensional display sheet of the present invention.
  • the three-dimensional display sheet 250 may omit the protective film 152 to reduce the cost of the protective film.
  • the inner surface of the quarter-wave phase difference plate 254 is in contact with the polarizing film 253, and an additional optical path difference can be prevented from being generated between the polarizing film 253 and the quarter-wave phase difference plate 254. As shown in FIG.
  • the protective film 251 and the quarter-wave retardation film 254 can be attached to opposite sides of the polarizing film 253 by the roller 203, respectively.
  • the bonded three-dimensional display sheet 250 (the protective film 251, the polarizing film 253, and the quarter-wave retardation film 254) can be dried by a drying device to complete the three-dimensional display sheet 250. Therefore, the manufacturing method of the three-dimensional display sheet 250 can further simplify the process.
  • FIG. 8 is a cross-sectional viewing angle range diagram when the outer side of the quarter-wave retardation plate 254 of the three-dimensional display sheet 250 of the present invention directly contacts the air (the TAC film is not bonded).
  • the crosstalk viewing angle range shown in FIG. 8 is larger than the crosstalk viewing angle range shown in FIG. Therefore, the three-dimensional display sheet 250 corresponding to FIG. 8 can have a large viewing angle range.
  • the three-dimensional display sheet 350 includes protective films 351, 352, a polarizing film 353, a quarter-wave retardation film 354, and a zero retardation film 355.
  • the polarizing film 353 is disposed between the protective films 351 and 352
  • the quarter-wave retardation film 354 is disposed between the protective film 352 and the zero retardation film 355, and the zero retardation film 355 is disposed (fitted).
  • the outer side surface of the quarter-wave retardation film 354 that is, the outer surface of the quarter-wave retardation film 354 of the three-dimensional display sheet 350 is in direct contact with the zero retardation film 355.
  • the zero retardation film 355 is, for example, a zero retardation TAC film in which the first optical path difference R0 and the second optical path difference Rth are absent (Zero TAC Film). Therefore, the optical path difference of the medium (zero retardation film 355) which is contacted by the outer surface of the quarter-wave phase difference plate 354 is zero.
  • FIG. 10 and FIG. 11 are schematic diagrams showing the manufacture of another embodiment of the three-dimensional display sheet of the present invention.
  • the protective films 351 and 352 may be attached to opposite sides of the polarizing film 353 by using a roller.
  • the quarter-wave retardation film 354 and the zero retardation film 355 are sequentially attached to the protective film 352 by a roller to form a three-dimensional display sheet 350.
  • the bonded three-dimensional display sheet 350 (the two protective films 351 and 352, the polarizing film 353, the quarter-wave retardation film 354, and the zero retardation film 355) can be dried by a drying device to complete the process.
  • Three-dimensional display sheet 350 the two protective films 351 and 352, the polarizing film 353, the quarter-wave retardation film 354, and the zero retardation film 355.
  • FIG. 12 is a cross-sectional viewing angle range diagram when the zero-interference retardation film 355 is attached to the outer side of the quarter-wave retardation film 354 of the three-dimensional display sheet 350 of the present invention.
  • the crosstalk viewing angle range shown in FIG. 12 is larger than the crosstalk viewing angle range shown in FIG. Therefore, the three-dimensional display sheet 350 corresponding to FIG. 12 can have a larger viewing angle range.
  • FIG. 13 is a partial cross-sectional view showing still another embodiment of the three-dimensional display sheet of the present invention
  • FIG. 14 is a schematic view showing the manufacturing of the three-dimensional display sheet of the present invention.
  • the three-dimensional display sheet 450 includes a protective film 451, a polarizing film 453, a quarter-wave retardation film 454, and a zero retardation film 455 which are sequentially disposed.
  • the quarter-wave retardation plate 454 is bonded and contacted between the polarizing film 453 and the zero retardation film 455 to avoid an additional optical path difference between the polarizing film 453 and the quarter-wavelength phase difference.
  • the quarter-wave retardation film 454 may be attached to the zero retardation film 455 in advance, and then, as shown in FIG. 14, the protective film 451 and the quarter are used by the roller.
  • the wavelength retardation films 454 are respectively attached to opposite sides of the polarizing film 453.
  • the bonded three-dimensional display sheet 450 (protective film 451, polarizing film 453, quarter-wave retardation film 454, and zero retardation film 455) can be dried by a drying device to complete the three-dimensional display sheet. 450.
  • FIG. 15 is a cross-sectional viewing angle range diagram when the zero-wave retardation film 455 is attached to the outer side of the quarter-wave retardation film 454 of the three-dimensional display sheet 450 of the present invention.
  • the crosstalk viewing angle range shown in FIG. 15 is larger than the crosstalk viewing angle range shown in FIG. Therefore, the three-dimensional display sheet 450 corresponding to FIG. 15 can have a large viewing angle range.
  • the three-dimensional display panel and the three-dimensional display sheet manufacturing method of the present invention can eliminate or reduce the undesired optical path difference between the three-dimensional display panel and the user's circular-polarized glasses, so as to improve the viewing angle of the existing three-dimensional display. Problems and ensure the quality of the display of the 3D display panel.

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Abstract

一种三维显示面板（100）及三维显示片（150，250，350，450）的制造方法，所述方法包括如下步骤：提供偏光膜（153，253，353，453）；以及将保护膜（152，252，352，452）及四分之一波长相位差片（154，254，354，454）分别贴合于所述偏光膜（153，253，353，453）的相对两侧，其中所述四分之一波长相位差片（154，254，354，454）的外侧表面是直接接触于一介质，所述介质的光程差为零，所述三维显示面板（100）及三维显示片（150，250，350，450）可改善现有三维显示器的视角问题。

Description

三维显示面板及三维显示片的制造方法 技术领域
本发明涉及一种三维显示面板及三维显示片的制造方法，特别是涉及一种用于显示三维影像的三维显示面板及三维显示片的制造方法。
 背景技术
液晶显示器(Liquid Crystal Display，LCD)已被广泛应用于各种电子产品中，液晶显示器大部分为背光型液晶显示器，其是由显示面板及背光模块(backlight module)所组成。
目前，液晶显示器可具有立体影像显示功能，例如图形化相位延迟膜三维显示器(three dimension pattern retarder display)，其包括一设置于液晶显示器外侧的四分之一波长相位延迟片。
一般，图形化相位延迟膜三维显示器是将其奇数列(或偶数列)的画素作为左眼画素(left image pixels)，而其它数列的画素作为右眼画素(right image pixels)，当液晶显示器的光线经过不同配向的四分之一波长相位延迟片后，光线会分别形成左圆偏振光及右圆偏振光。使用者可搭配不同极化方向的圆偏眼镜(circular polarizer glasses)，使得使用者的左眼只能看到左眼画素所显示的影像，而右眼只能看到右眼画素所显示的影像，因而可达到三维立体影像的效果。
然而，当斜视现有三维显示器时，由三维显示器所射出的光会容易呈非圆偏振光(如椭圆偏振光)，因而容易产生影像串扰，影响三维显示质量，亦即现有三维显示器容易具有视角(viewing angle)问题。
 技术问题
本发明提供一种三维显示面板及三维显示片的制造方法，以解决现有三维显示器的视角范围不佳问题。
 技术解决方案
本发明的主要目的在于提供一种三维显示面板，三维显示面板包括：第一基板；第二基板；液晶层，形成于所述第一基板与所述第二基板之间；偏光片，设置于所述第二基板的外侧；以及三维显示片，设置于所述第一基板的外侧，其中所述三维显示片包括保护膜、偏光膜及四分之一波长相位差片，所述偏光膜及所述四分之一波长相位差片是依序设置于所述保护膜上，所述四分之一波长相位差片的外侧表面是直接接触于一介质，所述介质的光程差为零。
本发明的另一目的在于提供一种三维显示面板，三维显示面板包括：第一基板；第二基板；液晶层，形成于所述第一基板与所述第二基板之间；偏光片，设置于所述第二基板的外侧；以及三维显示片，设置于所述第一基板的外侧，其中所述三维显示片包括保护膜、偏光膜及四分之一波长相位差片，所述偏光膜及所述四分之一波长相位差片是依序设置于所述保护膜上，所述四分之一波长相位差片的外侧表面是直接接触于一介质，所述介质的光程差为零，所述四分之一波长相位差片的内侧表面直接接触于所述偏光膜，所述介质是零光程差膜。
本发明的又一目的在于提供一种三维显示面板的三维显示片的制造方法，包括如下步骤：提供一偏光膜；以及将保护膜及四分之一波长相位差片分别贴合于所述偏光膜的相对两侧，其中所述四分之一波长相位差片的外侧表面是直接接触于一介质，所述介质的光程差为零。
在本发明的一实施例中，所述三维显示面板还包括另一保护膜，设置于所述偏光膜与四分之一波长相位差片之间。
在本发明的一实施例中，所述四分之一波长相位差片内侧表面直接接触于所述偏光膜。
在本发明的一实施例中，所述介质是空气。
在本发明的一实施例中，所述介质是零光程差膜。
在本发明的一实施例中，所述零光程差膜是零光程差三醋酸纤维膜。
在本发明的一实施例中，所述偏光膜为聚乙烯醇膜。
在本发明的一实施例中，当将所述保护膜及所述四分之一波长相位差片分别贴合于所述偏光膜的相对两侧时，先将所述保护膜及另一保护膜分别贴合于所述偏光膜的相对两侧，再将所述四分之一波长相位差贴合于所述另一保护膜上。
 有益效果
相较于现有的三维显示器所具有的视角问题，通过本发明的三维显示面板及其制造方法，可减少三维显示面板与使用者的偏光眼镜之间不预期的光程差，而可改善现有三维显示器的视角问题，并确保三维显示面板的显示质量。
 附图说明
图1为本发明三维显示面板的一实施例的部分剖面图；
图2为本发明三维显示片的四分之一波长相位差片在贴合有三醋酸纤维(TAC)膜时的串扰视角范围图；
图3为本发明三维显示片的四分之一波长相位差片的外侧直接接触空气时的串扰视角范围图；
图4和图5为本发明三维显示片的一实施例的制造示意图；
图6为本发明三维显示片的另一实施例的部分剖面图；
图7为本发明三维显示片的另一实施例的制造示意图；
图8为本发明三维显示片的四分之一波长相位差片的外侧直接接触空气时的串扰视角范围图；
图9为本发明三维显示片的又一实施例的部分剖面图；
图10及图11为本发明三维显示片的又一实施例的制造示意图；
图12为本发明三维显示片的四分之一波长相位差片的外侧贴有零光程差膜时的串扰视角范围图；
图13为本发明三维显示片的又一实施例的部分剖面图；
图14为本发明三维显示片的又一实施例的制造示意图；以及
图15为本发明三维显示片的四分之一波长相位差片的外侧贴有零光程差膜时的串扰视角范围图。
 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。
在图中，结构相似的单元是以相同标号表示。
请参照图1，其为本发明三维显示面板的一实施例的部分剖面图。本实施例的三维显示面板100可用于显示三维影像，此三维显示面板100可组装于背光模块(未显示)上，而形成显示装置。三维显示面板100相对于背光模块来设置，背光模块可为侧光式(Edge Lighting)背光模块或直下式入光(Bottom Lighting)背光模块，以提供背光至三维显示面板100。
如图1所示，本实施的三维显示面板100可包括第一基板110、第二基板120、液晶层130、偏光片140及三维显示片150。第一基板110和第二基板120的基板材料可为玻璃基板或可挠性塑料基板，在本实施例中，第一基板110例如为具有彩色滤光片(Color Filter，CF)的玻璃基板或其它材质的基板，而第二基板120可例如为具有薄膜晶体管(Thin Film Transistor，TFT) 矩阵的玻璃基板或其它材质的基板。值得注意的是，在一些实施例中，彩色滤光片和TFT矩阵亦可配置在同一基板上。
如图1所示，液晶层130是形成于第一基板110与第二基板120之间，偏光片140是设置第二基板120的外侧，三维显示片150是设置于第一基板110的外侧。
如图1所示，三维显示片150是用于形成圆偏振光，三维显示片150包括保护膜151、152、偏光膜153及四分之一波长相位差片154。偏光膜153是设置于保护膜151与152之间，四分之一波长相位差片154是设置(贴合)于保护膜152上，用于将由偏光膜153所发出的线偏光转换成圆偏振光。四分之一波长相位差片154与使用者的偏光眼镜102之间具有一介质，四分之一波长相位差片154的外侧表面是直接接触于此介质，此介质的光程差(Retardation)为零。此时，由四分之一波长相位差片154所垂直射出的光线在通过此介质后的第一光程差R0为零，且由四分之一波长相位差片154所倾斜射出(非垂直射出)的光线在通过此介质后的第二光程差Rth。亦即，当使用者正视三维显示面板100时，此介质具有第一光程差R0；当使用者斜视三维显示面板100时，此介质具有第二光程差Rth，且第一光程差R0及第二光程差Rth皆为零(R0=0，Rth=0)。
如图1所示，二保护膜151、152例如为三醋酸纤维(Triacetyl cellulose，TAC)膜，用于保护和支撑偏光膜153及四分之一波长相位差片154。偏光膜153是靠近于第一基板110，用于将光线转换成线偏光，偏光膜153例如为聚乙烯醇(Poly vinyl alcohol，PVA)膜。
在本实施例中，四分之一波长相位差片154是位于三维显示面板100的最外侧，四分之一波长相位差片154的外侧表面所接触的介质可为空气，因而第一光程差R0及第二光程差Rth可为零。
请参照图2和图3，图2为本发明三维显示片150的四分之一波长相位差片154的外侧表面在贴合有三醋酸纤维(TAC)膜时的串扰视角范围图，图3为本发明三维显示片150的四分之一波长相位差片154的外侧表面直接接触空气(未贴合有TAC膜)时的串扰视角范围图。在对应于图2所量测的结构中，TAC膜是贴合于四分之一波长相位差片154的外侧表面上，且TAC膜在正视与斜视时具有不同的光程差，亦即R0不同于Rth。显然，相较于图2所示的串扰视角范围，图3所示的视角范围较大。因此，对应于图3的三维显示片150可具有较大视角范围。
在本实施例中，由于三维显示片150的四分之一波长相位差片154是直接接触于空气，因而可消除或减少三维显示面板100与使用者的偏光眼镜102之间的不预期光程差。因此，当使用者戴着偏光眼镜102来斜视本实施例的三维显示面板100时，亦即当使用者的眼睛与三维显示面板100之间的光线路径未垂直于三维显示面板100的平面时，通过三维显示片150，可消除或减少三维显示面板100与使用者的偏光眼镜102之间的不预期光程差，以减少影像串扰，并改善现有三维显示器的视角问题。
请参照图4和图5，其为本发明三维显示片的一实施例的制造示意图。当制造本实施例的三维显示片150时，如图4所示，可先利用滚轮来将保护膜151、152分别贴合于偏光膜153的相对两侧。接着，如图5所示，利用滚轮来将四分之一波长相位差片154贴合于保护膜152上，以形成三维显示片150。接着，贴合后的三维显示片150(两保护膜151及152、偏光膜153及四分之一波长相位差片154)可通过一干燥装置来进行干燥，以完成此三维显示片150。
请参照图6及图7，图6为本发明三维显示片的另一实施例的部分剖面图，图7为本发明三维显示片的另一实施例的制造示意图。在另一实施例中，三维显示片250可省略保护膜152，以减少保护膜的成本。此时，四分之一波长相位差片254内侧表面是接触于偏光膜253，可避免产生额外的光程差于偏光膜253与四分之一波长相位差片254之间。如图7所示，当制造三维显示片250时，可利用滚轮203来将保护膜251及四分之一波长相位差片254分别贴合于偏光膜253的相对两侧。接着，贴合后的三维显示片250(保护膜251、偏光膜253及四分之一波长相位差片254)可通过干燥装置来进行干燥，以完成此三维显示片250。因此，三维显示片250的制造方法可进一步简化制程。
请参照图2和图8，图8为本发明三维显示片250的四分之一波长相位差片254的外侧直接接触空气(未贴合有TAC膜)时的串扰视角范围图。显然，相较于图2所示的串扰视角范围，图8所示的串扰视角范围较大。因此，对应于图8的三维显示片250可具有较大视角范围。
请参照图9，其为本发明三维显示片的又一实施例的部分剖面图。在又一实施例中，三维显示片350包括保护膜351、352、偏光膜353、四分之一波长相位差片354及零光程差膜355。偏光膜353是设置于保护膜351与352之间，四分之一波长相位差片354是设置于保护膜352及零光程差膜355之间，零光程差膜355是设置(贴合)于四分之一波长相位差片354的外侧表面上，亦即三维显示片350的四分之一波长相位差片354的外侧表面是直接接触于零光程差膜355。此零光程差膜355例如为不存在第一光程差R0及第二光程差Rth的零光程差TAC膜(Zero TAC Film)。因此，四分之一波长相位差片354的外侧表面所接触的介质(零光程差膜355)的光程差为零。
请参照图10及图11，其为本发明三维显示片的又一实施例的制造示意图。当制造本实施例的三维显示片350时，如图10所示，可先利用滚轮来将保护膜351、352分别贴合于偏光膜353的相对两侧。接着，如图11所示，利用滚轮来将四分之一波长相位差片354及零光程差膜355依序贴合于保护膜352上，以形成三维显示片350。接着，贴合后的三维显示片350(两保护膜351及352、偏光膜353、四分之一波长相位差片354及零光程差膜355)可通过干燥装置来进行干燥，以完成此三维显示片350。
请参照图2和图12，图12为本发明三维显示片350的四分之一波长相位差片354的外侧贴有零光程差膜355时的串扰视角范围图。显然，相较于图2所示的串扰视角范围，图12所示的串扰视角范围较大。因此，对应于图12的三维显示片350可具有较大视角范围。
请参照图13及图14，图13为本发明三维显示片的又一实施例的部分剖面图，图14为本发明三维显示片的又一实施例的制造示意图。在又一实施例中，三维显示片450包括依序设置的保护膜451、偏光膜453、四分之一波长相位差片454及零光程差膜455。此时，四分之一波长相位差片454是贴合并接触于偏光膜453与零光程差膜455之间，以避免产生额外的光程差于偏光膜453与四分之一波长相位差片454之间。当制造三维显示片450时，可预先贴合四分之一波长相位差片454于零光程差膜455上，接着，如图14所示，利用滚轮来将保护膜451及四分之一波长相位差片454分别贴合于偏光膜453的相对两侧。接着，贴合后的三维显示片450(保护膜451、偏光膜453、四分之一波长相位差片454及零光程差膜455)可通过干燥装置来进行干燥，以完成此三维显示片450。
请参照图2和图15，图15为本发明三维显示片450的四分之一波长相位差片454的外侧贴有零光程差膜455时的串扰视角范围图。显然，相较于图2所示的串扰视角范围，图15所示的串扰视角范围较大。因此，对应于图15的三维显示片450可具有较大视角范围。
由上述可知，通过本发明的三维显示面板及三维显示片的制造方法，可消除或减少三维显示面板与使用者的圆偏眼镜之间不预期的光程差，以改善现有三维显示器的视角问题，并可确保三维显示面板的显示质量。
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。
 本发明的实施方式
工业实用性
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Claims (14)

  1. 一种三维显示面板，包括：
    第一基板；
    第二基板；
    液晶层，形成于所述第一基板与所述第二基板之间；
    偏光片，设置于所述第二基板的外侧；以及
    三维显示片，设置于所述第一基板的外侧，其中所述三维显示片包括保护膜、偏光膜及四分之一波长相位差片，所述偏光膜及所述四分之一波长相位差片是依序设置于所述保护膜上，所述四分之一波长相位差片的外侧表面是直接接触于一介质，所述介质的光程差为零，所述四分之一波长相位差片的内侧表面直接接触于所述偏光膜，所述介质是零光程差膜。
  2. 根据权利要求1所述的三维显示面板，其中所述零光程差膜是零光程差三醋酸纤维膜。
  3. 根据权利要求1所述的三维显示面板，其中所述偏光膜为聚乙烯醇膜。
  4. 一种三维显示面板，包括：
    第一基板；
    第二基板；
    液晶层，形成于所述第一基板与所述第二基板之间；
    偏光片，设置于所述第二基板的外侧；以及
    三维显示片，设置于所述第一基板的外侧，其中所述三维显示片包括保护膜、偏光膜及四分之一波长相位差片，所述偏光膜及所述四分之一波长相位差片是依序设置于所述保护膜上，所述四分之一波长相位差片的外侧表面是直接接触于一介质，所述介质的光程差为零。
  5. 根据权利要求4所述的三维显示面板，还包括另一保护膜，设置于所述偏光膜与四分之一波长相位差片之间。
  6. 根据权利要求4所述的三维显示面板，其中所述四分之一波长相位差片内侧表面直接接触于所述偏光膜。
  7. 根据权利要求4所述的三维显示面板，其中所述介质是空气。
  8. 根据权利要求4所述的三维显示面板，其中所述介质是零光程差膜。
  9. 根据权利要求8所述的三维显示面板，其中所述零光程差膜是零光程差三醋酸纤维膜。
  10. 根据权利要求4所述的三维显示面板，其中所述偏光膜为聚乙烯醇膜。
  11. 一种三维显示面板的三维显示片的制造方法，包括如下步骤：
    提供一偏光膜；以及
    将保护膜及四分之一波长相位差片分别贴合于所述偏光膜的相对两侧，其中所述四分之一波长相位差片的外侧表面是直接接触于一介质，所述介质的光程差为零。
  12. 根据权利要求11所述的方法，其中所述介质是零光程差膜。
  13. 根据权利要求11所述的方法，其中所述四分之一波长相位差片的内侧表面直接接触于所述偏光膜。
  14. 根据权利要求11所述的方法，其中当将所述保护膜及所述四分之一波长相位差片分别贴合于所述偏光膜的相对两侧时，先将所述保护膜及另一保护膜分别贴合于所述偏光膜的相对两侧，再将所述四分之一波长相位差贴合于所述另一保护膜上。
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