WO2015021709A1 - 用于对待取向显示面板进行自对位曝光取向的设备及制作相位差板的方法 - Google Patents

用于对待取向显示面板进行自对位曝光取向的设备及制作相位差板的方法 Download PDF

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Publication number
WO2015021709A1
WO2015021709A1 PCT/CN2013/088756 CN2013088756W WO2015021709A1 WO 2015021709 A1 WO2015021709 A1 WO 2015021709A1 CN 2013088756 W CN2013088756 W CN 2013088756W WO 2015021709 A1 WO2015021709 A1 WO 2015021709A1
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Prior art keywords
display panel
light source
substrate
exposure
light
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PCT/CN2013/088756
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English (en)
French (fr)
Inventor
武延兵
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BOE Technology Group Co Ltd
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BOE Technology Group Co Ltd
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Priority to US14/355,571 priority Critical patent/US9223175B2/en
Publication of WO2015021709A1 publication Critical patent/WO2015021709A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • G02F1/13363—Birefringent elements, e.g. for optical compensation
    • 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
    • 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
    • G02F1/1303—Apparatus specially adapted to the manufacture of LCDs
    • 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
    • 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
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • 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
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • 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
    • G02F1/1341—Filling or closing of cells
    • 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
    • G02F1/133354—Arrangements for aligning or assembling substrates
    • 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
    • G02F1/13363—Birefringent elements, e.g. for optical compensation
    • G02F1/133638—Waveplates, i.e. plates with a retardation value of lambda/n

Definitions

  • the present invention relates to the field of display technology, and in particular, to an apparatus for self-alignment exposure orientation of an orientation display panel and a method of fabricating a phase difference plate. Background technique
  • stereoscopic display has become a major trend in the display field.
  • the fundamental principle of stereoscopic display is that the parallax produces a stereo, that is, the left eye sees the left eye image and the right eye sees the right eye image.
  • the left and right eye images are a pair of stereo images with parallax.
  • One way to realize stereoscopic display is serial, that is, at the first moment, the display displays the left eye image, at which time only the viewer's left eye can see the display image; at the second moment, the display displays the right eye image, Only the viewer's right eye can see the displayed image, and the persistence of the image in the retina of the human eye makes it possible for the left and right eyes to see the left and right eye images at the same time, thereby generating a stereoscopic feeling.
  • Another way to realize stereoscopic display is parallelism, that is, at the same time, a part of the pixels on the display display the left eye image, and another part of the pixels display the right eye image, and the display of a part of the pixels can only be performed by means of gratings, polarized glasses, or the like.
  • the right eye sees that the other part can only be seen by the left eye, resulting in a three-dimensional feeling.
  • stereoscopic display is usually performed using polarized glasses.
  • the basic structure of the display technology is to mount a device in front of the display panel that can adjust the direction of polarization of the emitted light.
  • the device may be a phase difference plate, a liquid crystal cell, or other device that can adjust the direction of polarization of the emitted light from different pixels.
  • the principle of realizing the stereoscopic display of the phase difference plate is as shown in FIG.
  • one line displays the right eye image, and one line displays the left eye image;
  • one line realizes ⁇ / 2 delay, and one line realizes 0 delay, so that the image 6 is emitted, so that The polarization direction of the light emitted by the ⁇ /2 delay is rotated by 90°.
  • the technique of using a pattern retarder is most favored.
  • the basic structure is that after a phase difference plate is accurately aligned on the display panel, the phase difference plate is attached to the display panel, and different phase delays can be generated by using different regions on the phase difference plate, thereby making different pixels The light exits in different polarization directions, and the viewer can see the 3D effect when wearing polarized glasses.
  • the method for fabricating the phase difference plate in the prior art is as follows:
  • the present invention solves the following technical problems, and provides an apparatus for self-alignment exposure orientation of an orientation display panel and a method for fabricating a phase difference plate, thereby overcoming the cost of manufacturing a phase difference plate by using a mask film in the prior art. High and low alignment accuracy.
  • the present invention provides an apparatus for performing self-alignment exposure orientation on an orientation display panel, wherein the first pixel group and the second pixel group are spaced apart on the display panel to be oriented;
  • the panel includes a first substrate and a second substrate, and the first substrate is provided with a first polarizing plate, and the first polarizing plate is provided with a photo alignment layer.
  • the device includes:
  • the base station is configured to place a display panel to be oriented, and an area on the base corresponding to the display area of the display panel to be oriented is transparent;
  • a display panel driving system connected to the display panel to be oriented; under the control of the display panel driving system, an area corresponding to the first pixel group on the display panel to be oriented is in a light transmitting state, and The area corresponding to the second pixel group on the orientation display panel is in a light blocking state;
  • a first exposure light source located on a side close to the second substrate, and light emitted from the second substrate toward the first substrate is linearly polarized light;
  • a second exposure light source located on a side close to the first substrate, wherein the light emitted by the second exposure light source is linearly polarized light, and a polarization direction of the linearly polarized light is opposite to a transmission axis direction of the first polarizing plate vertical.
  • the light that is directed from the second substrate to the first substrate is a linearly polarized light.
  • the implementation includes:
  • the light emitted by the first exposure light source is natural light, and the natural light is emitted to the first substrate through the second polarizing plate.
  • the light that is directed from the second substrate to the first substrate is a linearly polarized light.
  • the implementation includes:
  • the light emitted by the first exposure light source is linearly polarized light, and the polarization direction of the linearly polarized light is opposite to the transmission axis direction of the second polarizing plate.
  • the light emitted by the first exposure light source is linearly polarized light.
  • the light that is directed from the second substrate to the first substrate is a linearly polarized light.
  • the implementation includes:
  • a quartz plate is disposed on the base, and the light emitted by the first exposure light source is natural light, and the natural light is emitted to the first substrate through the quartz plate.
  • the apparatus further includes a first light source control system, the first light source control system has an arc-shaped guide rail, and controls the first exposure light source to move along the curved guide rail to expose the display panel to be oriented .
  • the center position of the curved guide rail is located at an optimum viewing point on the light exit side of the display panel to be oriented.
  • the apparatus further includes a second light source control system, the second light source control system controls the second exposure light source to perform horizontal movement in a plane parallel to the display panel to be oriented to display the to-be-oriented orientation The panel is exposed.
  • the second light source control system controls the second exposure light source to perform horizontal movement in a plane parallel to the display panel to be oriented to display the to-be-oriented orientation The panel is exposed.
  • the present invention provides a method of fabricating a phase difference plate using the apparatus for self-alignment exposure orientation of an oriented display panel, comprising:
  • the display panel to be oriented is placed on the base, the display panel to be oriented is connected to the display panel driving system, and the area corresponding to the first pixel group on the display panel to be oriented is controlled to be in a light transmitting state.
  • the area corresponding to the second pixel group on the orientation display panel is in a light blocking state;
  • Opening a first exposure light source transmitting the emitted light of the first exposure light source to the base, and transmitting the light alignment material corresponding to the first pixel group on the photo alignment layer through the first pixel group ;
  • the first exposure light source completes an exposure orientation of all photo-alignment materials corresponding to the first pixel group on the photo-alignment layer under the control of the first light source control system; turning off the first exposure light source, opening a second exposure light source, performing exposure orientation on the photo alignment material corresponding to the second pixel group on the photo alignment layer;
  • the second exposure light source completes exposure orientation of all photo-alignment materials corresponding to the second pixel group on the photo-alignment layer under the control of the second light source control system; and after the orientation is completed, the liquid crystal is dropped.
  • the first substrate and the second substrate are placed in a box, and the liquid crystal is cured.
  • the invention provides a device for self-alignment exposure orientation of an oriented display panel and a method for manufacturing a phase difference plate, which avoids the use of a mask to fabricate a phase difference plate, thereby minimizing production cost and making alignment precision. Can be improved.
  • FIG. 1 is a schematic diagram showing the principle of a stereoscopic display of a phase difference plate in the prior art
  • FIG. 2 is a schematic view showing a manufacturing method of a prior art phase difference plate
  • FIG. 3 is a schematic structural diagram of an apparatus for performing self-alignment exposure orientation of an orientation display panel according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of a pixel configuration of a display panel according to an embodiment of the present invention. detailed description
  • the present invention provides an apparatus for self-aligning exposure orientation of an orientation display panel, comprising: a base 1, a display panel driving system 3, a first exposure light source 4, and a second Exposure source 6.
  • the base 1 is used for placing the display panel 2 to be oriented, and the area corresponding to the display area of the display panel 2 to be oriented on the base 1 is transparent;
  • the display panel driving system 3 is connected to the display panel 2 to be oriented, wherein the first pixel group 21 and the second pixel group 22 are spaced apart from each other on the display panel 2; under the control of the display panel driving system 3,
  • the area corresponding to the first pixel group 21 on the orientation display panel 2 is in a light transmitting state, and the area corresponding to the second pixel group 22 on the orientation display panel 2 is in a light blocking state; wherein, the first pixel group 21 and the first pixel group
  • the two pixel groups 22 may be spaced apart in a row form, a column form, or a matrix form. For example, as shown in FIG. 4, the first pixel group 21 and the second pixel group 22 are spaced apart in a row form;
  • the display panel 2 to be oriented includes a first substrate 23 and a second substrate 24, and a first polarizing plate 7 is disposed on the first substrate 23, and a photo-alignment layer 9 is disposed on the first polarizing plate 7.
  • the light that the second substrate 24 emits toward the first substrate 23 is linearly polarized light;
  • the first exposure light source 4 is located on a side close to the second substrate 24; the second exposure light source 6 is disposed on one side of the first substrate 23, and the light emitted by the second exposure light source 6 is linearly polarized light.
  • the polarization direction of the linearly polarized light is perpendicular to the direction of the transmission axis of the first polarizing plate 7.
  • the implementation of the linearly polarized light from the second substrate 24 to the first substrate 23 specifically includes the following:
  • the light emitted from the first exposure light source 4 is set to be natural light, and the second substrate 24 is provided with a second polarizing plate 8, which is incident on the first substrate 23 through the second polarizing plate 8.
  • the light emitted from the first exposure light source 4 is linearly polarized
  • the second substrate 24 is provided with a second polarizing plate 8 whose polarization direction is opposite to the transmission axis direction of the second polarizing film 8. Parallel; or, when the light emitted by the first exposure light source 4 is linearly polarized light, the second polarizing plate 8 may not be disposed on the second substrate 24.
  • a quartz plate is disposed on the base 1, and the light emitted from the first exposure light source 4 is natural light, and the light emitted from the natural light passing through the quartz plate is linearly polarized light, and the linearly polarized light is directed toward the first substrate 23.
  • the apparatus for self-alignment exposure orientation of an aspect to be oriented display panel of the present invention may further include a first light source control system and a second light source control system, the first light source control system having a curved guide rail 5,
  • the first exposure light source 4 moves along the curved guide rail 5 to expose the display panel 2 to be oriented.
  • the center position of the curved guide rail 5 is located at the optimal viewing point of the light exiting side of the display panel 2 to be oriented.
  • the second light source control system controls the second exposure light source 6 to be horizontally movable in a plane parallel to the display panel 2 to be oriented to expose the display panel 2 to be oriented, thereby ensuring uniform exposure of the respective regions.
  • the display panel in this embodiment may be a TN mode, an ADS mode, an IPS mode, or any other display mode.
  • the method for fabricating a phase difference plate by using the device for self-alignment exposure orientation of an oriented display panel of the present invention is specifically described below, and specifically includes:
  • the display panel 2 to be oriented is placed on the base 1 , and the display panel 2 to be oriented is connected to the display panel driving system 3 , and the area corresponding to the first pixel group 21 in the display panel 2 to be oriented is controlled to be in a light transmitting state, and the control is performed.
  • the area corresponding to the second pixel group 22 in the orientation display panel 2 is in a light blocking state;
  • the first exposure light source 4 is turned on, so that the light emitted by the first exposure light source 4 passes through the base 1 and the light that is directed toward the first substrate 23 is linearly polarized light that is transmitted through the display panel 2 to be oriented.
  • the first exposure light source 4 performs exposure orientation on a portion of the photo alignment layer 9 corresponding to the first pixel group 21 in the display panel 2 to be oriented under the control of the first light source control system;
  • the liquid crystal is dropped, the first substrate 23 and the second substrate 24 are placed on the cell, and the liquid crystal is cured, that is, the phase difference plate is completed.
  • the method for fabricating the phase difference plate provided by the invention avoids the use of the mask plate to fabricate the phase difference plate, thereby minimizing the production cost and improving the alignment accuracy.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mathematical Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Liquid Crystal (AREA)
  • Polarising Elements (AREA)

Abstract

提供了一种用于对待取向显示面板进行自对位曝光取向的设备及制作相位差板的方法，待取向显示面板（2）上间隔分布第一像素组和第二像素组并且包括第一基板（23）和第二基板（24），第一基板上设有第一偏振片（7）而第一偏振片上还设有光取向层（9），设备包括基台（1），其用于放置待取向显示面板，与待显示面板连接的显示面板驱动系统（3）；从第二基板射向第一基板的光为线性偏振光；第一曝光光源（4），位于靠近第二基板的一侧；第二曝光光源（6），位于靠近第一基板的一侧，第二曝光光源射出的光为线性偏振光，线性偏振光的偏振方向与第一偏振片的透光轴方向相垂直。提供的用于对待取向显示面板进行自对位曝光取向的设备，避免采用掩模版制作相位差板，最大程度地降低生产成本且使得对位精度得以提高。

Description

用于对待取向显示面板进行自对位曝光取向的设备及制作 相位差板的方法 技术领域
本发明涉及显示技术领域，特别涉及一种用于对待取向显示面板 进行自对位曝光取向的设备及制作相位差板的方法。 背景技术
随着显示技术的不断发展，立体显示已经成为显示领域的一大趋 势。 而立体显示的根本原理就是视差产生立体， 即， 使人的左眼看到 左眼图像， 右眼看到右眼图像。 其中， 左右眼图像为有视差的一对立 体图像。
实现立体显示的一种方式为串行式， 即， 在第一时刻， 显示器显 示左眼图像， 此时只有观看者的左眼能看到显示图像； 第二时刻， 显 示器显示右眼图像， 此时只有观看者的右眼能看到显示图像， 利用图 像在人眼视网膜的暂留性， 使人感觉到左右眼同时看到了左右眼图 像， 从而产生立体感觉。
实现立体显示的另外一种方式为并行式， 即， 在同一时刻， 显示 器上一部分像素显示左眼图像， 另一部分像素显示右眼图像， 通过光 栅、偏光眼镜等方式使一部分像素的显示只能被右眼看到， 另一部分 只能被左眼看到， 从而产生立体的感觉。
为了呈现较好的立体视觉效果， 目前通常釆用偏光眼镜进行立体 显示。该显示技术的基本结构是在显示面板前安装一个可以调节出射 光偏光方向的器件。 这种器件可以为相位差板， 也可以为液晶盒， 或 者其它可以调节出不同的像素出射光偏光方向的器件。
该相位差板实现立体显示的原理如图 1所示。 显示面板 7， 上， 一 行显示右眼图像， 一行显示左眼图像； 在其前面放置的一块相位差板 5， 上， 一行实现 λ / 2延迟， 一行实现 0延迟， 这样出射图像 6， 可 以使经过 λ / 2延迟的像素出射光的偏光方向旋转 90° 。 这样， 戴着 左右眼偏振方向正交的偏光眼镜，右眼只看到显示右眼图像的像素发 出的光， 左眼只看到显示左眼图像的像素发出的光， 从而产生立体效 果。
在多种偏光眼镜立体显示中， 釆用相位差板（pattern retarder )的 技术最受青睐。它的基本结构是在显示面板上使一块相位差板精确对 位后， 将该相位差板贴附在显示面板上， 利用相位差板上不同区域可 以产生不同的相位延迟， 从而使不同像素的光以不同偏振方向出射， 观看者佩带偏光眼镜就可以看到 3D效果。
如图 2所示， 现有技术中制作相位差板的方法如下：
( 1 )在基板 1，上涂覆光取向材料 2，；
( 2 )将掩膜版 3，放置在光取向材料 2，上；
( 3 )经过掩膜版 3' , 用偏振光 4'对未被掩膜版 3'遮挡的一部分光 取向材料 2'进行照射， 完成曝光固化；
( 4 )撤掉掩膜版 3', 对另一部分光取向材料 2'进行曝光固化；
( 5 )涂覆反应物质， 进行取向固化。
在实际制作相位差板的工艺中， 由于需要釆用掩膜版， 导致加工 成本昂贵， 且对位精度不高。 发明内容
(一）要解决的技术问题
本发明解决如下技术问题，提供一种用于对待取向显示面板进行 自对位曝光取向的设备及制作相位差板的方法， 以克服现有技术中釆 用掩膜版制作相位差板造成的成本高且对位精度不高等缺陷。
(二）技术方案
为了解决上述技术问题，本发明提供一种用于对待取向显示面板 进行自对位曝光取向的设备，所述待取向显示面板上间隔分布第一像 素组和第二像素组； 所述待取向显示面板包括第一基板和第二基板， 所述第一基板上设有第一偏振片， 所述第一偏振片上设有光取向层， 所述设备包括：
基台， 所述基台用于放置待取向显示面板， 所述基台上与所述待 取向显示面板显示区域对应的区域是透明的；
与所述待取向显示面板连接的显示面板驱动系统；在所述显示面 板驱动系统的控制下，所述待取向显示面板上与所述第一像素组相对 应的区域为透光状态，而所述待取向显示面板上与所述第二像素组相 对应的区域为遮光状态；
第一曝光光源， 位于靠近所述第二基板的一侧， 从所述第二基板 射向所述第一基板的光为线性偏振光；
第二曝光光源， 位于靠近所述第一基板的一侧， 所述第二曝光光 源射出的光为线性偏振光，该线性偏振光的偏振方向与所述第一偏振 片的透光轴方向相垂直。
优选地，从所述第二基板射向所述第一基板的光为线性偏振光具 体实现方式包括：
在所述第二基板上设有第二偏振片时，所述第一曝光光源发出的 光为自然光， 所述自然光通过所述第二偏振片射向所述第一基板。
优选地，从所述第二基板射向所述第一基板的光为线性偏振光具 体实现方式包括：
在所述第二基板上设有第二偏振片时，所述第一曝光光源发出的 光为线性偏振光，所述线性偏振光的偏振方向与所述第二偏振片的透 光轴方向相平行；
或者， 在所述第二基板上不设置第二偏振片时， 所述第一曝光光 源发出的光为线性偏振光。
优选地，从所述第二基板射向所述第一基板的光为线性偏振光具 体实现方式包括：
所述基台上设置石英板， 所述第一曝光光源发出的光为自然光， 所述自然光通过所述石英板射向所述第一基板。 优选地， 所述设备还包括第一光源控制系统， 所述第一光源控制 系统具有弧形导轨，控制所述第一曝光光源沿所述弧形导轨运动以对 所述待取向显示面板进行曝光。
优选地，所述弧形导轨的圆心位置位于所述待取向显示面板出光 侧的最佳观看点。
优选地， 所述设备还包括第二光源控制系统， 所述第二光源控制 系统控制所述第二曝光光源在与所述待取向显示面板平行的平面内 进行水平移动以对所述待取向显示面板进行曝光。
另一方面，本发明还提供利用所述的用于对待取向显示面板进行 自对位曝光取向的设备制作相位差板的方法， 包括：
将待取向显示面板放置在基台上，将所述待取向显示面板与显示 面板驱动系统连接，并且控制所述待取向显示面板上与第一像素组相 对应的区域为透光状态，控制所述待取向显示面板上与第二像素组相 对应的区域为遮光状态；
打开第一曝光光源， 使所述第一曝光光源的出射光透过所述基 台， 透过第一像素组， 对光取向层上与所述第一像素组对应的光取向 材料进行曝光取向；
所述第一曝光光源在第一光源控制系统的控制下，完成对所述光 取向层上与所述第一像素组对应的全部光取向材料的曝光取向； 关闭所述第一曝光光源， 打开第二曝光光源， 对所述光取向层上 与所述第二像素组对应的光取向材料进行曝光取向；
所述第二曝光光源在第二光源控制系统的控制下，完成对所述光 取向层上与所述第二像素组对应的全部光取向材料的曝光取向； 以及 取向完成后， 滴入液晶， 将第一基板和第二基板进行对盒设置， 并对所述液晶进行固化处理。
(三）有益效果 本发明提供一种用于对待取向显示面板进行自对位曝光取向的 设备及制作相位差板的方法， 避免了釆用掩膜版制作相位差板， 最大 程度地降低生产成本且使得对位精度得以提高。 附图说明
图 1为现有技术中相位差板立体显示的原理示意图；
图 2为现有技术相位差板制作方法示意图；
图 3为本发明实施例的用于对待取向显示面板进行自对位曝光取 向的设备的结构示意图；
图 4为本发明实施例的显示面板像素配置的示意图。 具体实施方式
下面结合附图和实施例，对本发明的具体实施方式作进一步详细 描述。 以下实施例用于说明本发明， 但不用来限制本发明的范围。
如图 3和图 4所示，本发明提供一种用于对待取向显示面板进行 自对位曝光取向的设备， 主要包括： 基台 1、 显示面板驱动系统 3、 第一曝光光源 4和第二曝光光源 6。
所述基台 1用于放置待取向显示面板 2, 所述基台 1上与待取向 显示面板 2显示区对应的区域是透明的；
所述显示面板驱动系统 3与所述待取向显示面板 2连接， 其中， 待取向显示面板 2上间隔分布第一像素组 21和第二像素组 22; 在显 示面板驱动系统 3的控制下， 待取向显示面板 2上与第一像素组 21 相对应的区域为透光状态， 而待取向显示面板 2上与第二像素组 22 相对应的区域为遮光状态； 其中， 第一像素组 21和第二像素组 22可 以釆用行形式、 列形式或矩阵形式间隔分布。 例如， 如图 4所示， 第 一像素组 21和第二像素组 22釆用行形式间隔分布；
所述待取向显示面板 2包括第一基板 23和第二基板 24, 所述第 一基板 23上设有第一偏振片 7, 第一偏振片 7上设有光取向层 9, 从 第二基板 24射向第一基板 23的光（显示面板 2中的箭头方向为光出 射方向）为线性偏振光；
所述第一曝光光源 4位于靠近所述第二基板 24的一侧； 所述第二曝光光源 6设置在第一基板 23的一侧， 第二曝光光源 6射出的光为线性偏振光， 该线性偏振光的偏振方向与第一偏振片 7 的透光轴方向相垂直。
其中，从第二基板 24射向第一基板 23的光为线性偏振光的实现 方式具体包括如下几种：
设置所述第一曝光光源 4发出的光为自然光， 所述第二基板 24 上设有第二偏振片 8, 该自然光通过第二偏振片 8射向第一基板 23。
或者， 设置第一曝光光源 4发出的光为线性偏振光， 所述第二基 板 24上设有第二偏振片 8,该线性偏振光的偏振方向与第二偏振片 8 的透光轴方向相平行； 或者， 当第一曝光光源 4发出的光为线性偏振 光时， 所述第二基板 24上可以不设置第二偏振片 8。
再或者， 在基台 1上设置石英板， 第一曝光光源 4发出的光为自 然光， 该自然光通过石英板后出射的光为线性偏振光， 所述线性偏振 光射向第一基板 23。
上述几种情况都能确保从第二基板 24射向第一基板 23的光为线 性偏振光。
另外，本发明的用于对待取向显示面板进行自对位曝光取向的设 备还可以包括第一光源控制系统和第二光源控制系统，所述第一光源 控制系统具有弧形导轨 5, 控制所述第一曝光光源 4沿所述弧形导轨 5运动以对所述待取向显示面板 2进行曝光。 其中， 弧形导轨 5的圆 心位置位于待取向显示面板 2出光侧的最佳观看点。
第二光源控制系统控制第二曝光光源 6 能够在与所述待取向显 示面板 2平行的平面内进行水平移动以对所述待取向显示面板 2进行 曝光， 从而保证各个区域的曝光均匀。 需要说明的是，本实施例中的显示面板可以为 TN模式、 ADS模 式、 IPS模式或其他任何显示模式。
下面具体描述釆用本发明的用于对待取向显示面板进行自对位 曝光取向的设备制作相位差板的方法， 具体包括：
将待取向显示面板 2放置在基台 1上，待取向显示面板 2与显示 面板驱动系统 3连接， 并且控制待取向显示面板 2 中与第一像素组 21相对应的区域为透光状态， 控制待取向显示面板 2 中与第二像素 组 22相对应的区域为遮光状态；
打开第一曝光光源 4,使得该第一曝光光源 4所发出的光透过基台 1 , 并且使得射向第一基板 23的光为线性偏振光， 该线性偏振光透过 待取向显示面板 2上与第一像素组 21对应的区域，对光取向层 9上与第 一像素组 21对应的光取向材料进行曝光固化；
第一曝光光源 4在第一光源控制系统的控制下，对光取向层 9上与 待取向显示面板 2中第一像素组 21对应的部分进行曝光取向；
关闭第一曝光光源 4, 打开第二曝光光源 6, 对光取向层 9上与待 取向显示面板 2中第二像素组 22对应的部分进行曝光取向；
取向完成后， 滴入液晶， 将第一基板 23和第二基板 24进行对盒设 置， 并对液晶进行固化处理， 即完成了相位差板的制作。
本发明提供的制作相位差板的方法，避免釆用掩膜版制作相位差 板， 最大程度地降低生产成本且使得对位精度得以提高。
以上所述仅是本发明的优选实施方式， 应当指出， 对于本技术领 域的普通技术人员来说， 在不脱离本发明技术原理的前提下， 还可以 做出若干改进和变型， 这些改进和变型也应视为本发明的保护范围。

Claims

权 利 要 求 书
1、 一种用于对待取向显示面板进行自对位曝光取向的设备， 所 述待取向显示面板上间隔分布第一像素组和第二像素组；所述待取向 显示面板包括第一基板和第二基板， 所述第一基板上设有第一偏振 片， 所述第一偏振片上设有光取向层； 其特征在于， 该设备包括： 基台， 所述基台用于放置待取向显示面板， 所述基台上与所述待 取向显示面板显示区域对应的区域是透明的；
与所述待取向显示面板连接的显示面板驱动系统；在所述显示面 板驱动系统的控制下，所述待取向显示面板上与所述第一像素组相对 应的区域为透光状态，而所述待取向显示面板上与所述第二像素组相 对应的区域为遮光状态；
第一曝光光源， 位于靠近所述第二基板的一侧， 从所述第二基板 射向所述第一基板的光为线性偏振光；
第二曝光光源， 位于靠近所述第一基板的一侧， 所述第二曝光光 源射出的光为线性偏振光，该线性偏振光的偏振方向与所述第一偏振 片的透光轴方向相垂直。
2、 如权利要求 1所述的设备， 其特征在于，
在所述第二基板上设有第二偏振片时，所述第一曝光光源发出的 光为自然光， 所述自然光通过所述第二偏振片射向所述第一基板。
3、 如权利要求 1所述的设备， 其特征在于，
在所述第二基板上设有第二偏振片时，所述第一曝光光源发出的 光为线性偏振光，该线性偏振光的偏振方向与所述第二偏振片的透光 轴方向相平行； 或者
在所述第二基板上不设置第二偏振片时，所述第一曝光光源发出 的光为线性偏振光。
4、 如权利要求 1所述的设备， 其特征在于，
所述基台上设置石英板， 所述第一曝光光源发出的光为自然光， 所述自然光通过所述石英板射向所述第一基板。
5、 如权利要求 1-4任一项所述的设备， 其特征在于， 所述设备 还包括第一光源控制系统， 所述第一光源控制系统具有弧形导轨， 控 制所述第一曝光光源沿所述弧形导轨运动以对所述待取向显示面板 进行曝光。
6、 如权利要求 5所述的设备， 其特征在于， 所述弧形导轨的圆 心位置位于所述待取向显示面板出光侧的最佳观看点。
7、 如权利要求 5所述的设备， 其特征在于， 所述设备还包括第 二光源控制系统，所述第二光源控制系统控制所述第二曝光光源在与 所述待取向显示面板平行的平面内进行水平移动以对所述待取向显 示面板进行曝光。
8、 一种釆用权利要求 7所述的设备来制作相位差板的方法， 其 特征在于， 包括：
将待取向显示面板放置在基台上，将所述待取向显示面板与显示 面板驱动系统连接，并且控制所述待取向显示面板上与第一像素组相 对应的区域为透光状态，控制所述待取向显示面板上与第二像素组相 对应的区域为遮光状态；
打开第一曝光光源， 使所述第一曝光光源的出射光透过所述基 台， 透过第一像素组， 对光取向层上与所述第一像素组对应的光取向 材料进行曝光取向；
所述第一曝光光源在第一光源控制系统的控制下，完成对所述光 取向层上与所述第一像素组对应的全部光取向材料的曝光取向； 关闭所述第一曝光光源， 打开第二曝光光源， 对所述光取向层上 与所述第二像素组对应的光取向材料进行曝光取向；
所述第二曝光光源在第二光源控制系统的控制下，完成对所述光 取向层上与所述第二像素组对应的全部光取向材料的曝光取向； 以及 取向完成后， 滴入液晶， 将第一基板和第二基板进行对盒设置， 并对所述液晶进行固化处理。
PCT/CN2013/088756 2013-08-15 2013-12-06 用于对待取向显示面板进行自对位曝光取向的设备及制作相位差板的方法 Ceased WO2015021709A1 (zh)

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