WO2021109208A1 - 液晶配向装置 - Google Patents

液晶配向装置 Download PDF

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Publication number
WO2021109208A1
WO2021109208A1 PCT/CN2019/125081 CN2019125081W WO2021109208A1 WO 2021109208 A1 WO2021109208 A1 WO 2021109208A1 CN 2019125081 W CN2019125081 W CN 2019125081W WO 2021109208 A1 WO2021109208 A1 WO 2021109208A1
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WO
WIPO (PCT)
Prior art keywords
liquid crystal
substrate
crystal panel
alignment device
crystal alignment
Prior art date
Application number
PCT/CN2019/125081
Other languages
English (en)
French (fr)
Inventor
任维
Original Assignee
深圳市华星光电半导体显示技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市华星光电半导体显示技术有限公司 filed Critical 深圳市华星光电半导体显示技术有限公司
Priority to US16/625,719 priority Critical patent/US11175539B1/en
Publication of WO2021109208A1 publication Critical patent/WO2021109208A1/zh

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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
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/13378—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation
    • G02F1/133788—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation by light irradiation, e.g. linearly polarised light photo-polymerisation
    • 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
    • G02F1/1337—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
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/133711—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by organic films, e.g. polymeric films
    • 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
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/136222—Colour filters incorporated in the active matrix substrate

Definitions

  • This application relates to the field of display technology, and in particular to a liquid crystal alignment device.
  • Liquid Crystal Display (LCD for short) consists of a first substrate, a second substrate, a liquid crystal sandwiched between the first substrate and the second substrate, and a sealant frame (Sealant), between the first substrate and the second substrate
  • a sealant frame (Sealant)
  • the large-size liquid crystal panel 100 in the prior art includes a liquid crystal layer 1002, and a first substrate 1001 and a second substrate 1003 located on both sides of the liquid crystal layer 1002.
  • the color resist layer is provided on the first substrate.
  • ultraviolet rays illuminate the liquid crystal panel 100 from above, and the probe 102 applies a voltage U on one end of the first substrate 1001.
  • the second substrate 1003 must be placed below; the first substrate 1001 must be installed On the upper side, the liquid crystal panel 100 sags and bends on both sides, as shown in FIG. 2.
  • the position of the probe 102 deforms the most and is in a recessed state.
  • the arrangement direction of the liquid crystal near the recessed area is different from the preset tilt angle. Affect the display quality of the LCD panel.
  • the present application provides a liquid crystal alignment device, which can solve the problem that when the large-size liquid crystal alignment in the prior art, ultraviolet rays are absorbed by the color resistance of the pixel, the production efficiency of the liquid crystal panel is reduced, and the production cost of the liquid crystal panel is increased.
  • the quality of the liquid crystal panel is relatively high. Large, the two ends will sag and bend, especially near the probe position, the deformation is greatest, and it is in a recessed state. There is a certain difference between the liquid crystal arrangement direction and the preset tilt angle near the recessed area, which affects the technical problem of the display quality of the liquid crystal panel.
  • a liquid crystal alignment device includes a base for carrying a liquid crystal panel, a first substrate in the liquid crystal panel is placed on the base, and a color resist layer and pixel electrodes in the liquid crystal panel are located on the base of the liquid crystal panel.
  • a curing light source for illuminating the first substrate along the direction from the first substrate to the second substrate to cure the pretilt angle of the liquid crystal; probes for passing through the exposure of the first substrate
  • the electrode provides a curing voltage to the first substrate.
  • the curing light source is placed between the base table and the liquid crystal panel.
  • the curing light source is placed in a direction away from the liquid crystal panel of the base, and the base is transparent.
  • the curing light source includes a light guide plate and a plurality of ultraviolet light sources, and the light guide plate is used to convert the propagation direction of the ultraviolet light emitted by the ultraviolet light source so that the ultraviolet light is along the first The direction of the substrate facing the second substrate illuminates the first substrate.
  • the ultraviolet light source is arranged on the periphery of the light guide plate.
  • the light guide plate includes two light incident side surfaces, and a light exit surface between the two light incident side surfaces.
  • the ultraviolet light source is arranged at the bottom of the light guide plate.
  • one side of the base is provided with a clamping device or both sides are respectively provided with a clamping device.
  • the clamping device includes a base, a pad on the surface of the base, and two pads symmetrically arranged in the cavity of the pad, and the two pads are used for clamping Both sides of one end of the liquid crystal panel.
  • the probe is arranged on the edge of the cavity of the spacer.
  • a liquid crystal alignment device includes a base for carrying a liquid crystal panel, a first substrate in the liquid crystal panel is placed on the base, and a color resist layer and pixel electrodes in the liquid crystal panel are located on the base of the liquid crystal panel.
  • the curing light source includes a light guide plate and a plurality of ultraviolet light sources, the light guide plate is used to convert the propagation direction of the ultraviolet light emitted by the ultraviolet light source, so that the ultraviolet light is directed toward the second along the first substrate
  • the direction of the substrate irradiates the first substrate to cure the pretilt angle of the liquid crystal; the probe is used to provide a curing voltage to the first substrate through the exposed electrode of the first substrate.
  • the curing light source is placed between the base table and the liquid crystal panel.
  • the curing light source is placed in a direction away from the liquid crystal panel of the base, and the base is transparent.
  • the ultraviolet light source is arranged on the periphery of the light guide plate.
  • the light guide plate includes two light incident side surfaces, and a light exit surface between the two light incident side surfaces.
  • the light incident side surface is flat.
  • the ultraviolet light source is arranged at the bottom of the light guide plate.
  • one side of the base is provided with a clamping device or both sides are respectively provided with a clamping device.
  • the clamping device includes a base, a pad on the surface of the base, and two pads symmetrically arranged in the cavity of the pad, and the two pads are used for clamping Both sides of one end of the liquid crystal panel.
  • the probe is arranged on the edge of the cavity of the spacer.
  • the liquid crystal alignment device adds a light guide plate to the curing light source.
  • the light guide plate converts the point light source emitted by the ultraviolet light source into a surface light source and irradiates the first substrate of the liquid crystal panel with a color resist layer. It is arranged on the second substrate of the liquid crystal panel, thereby avoiding the problem that the second substrate must be below and the first substrate must be above during the liquid crystal alignment process, so that ultraviolet rays do not pass through the color resist layer in the pixel first, and prevent the ultraviolet light source from being color resisted
  • the layer absorbs and affects the reaction rate of the liquid crystal alignment and improves the efficiency of the liquid crystal alignment.
  • the liquid crystal panel is fixed on the surface of the base, and the two ends are clamped in the clamping device, so that the liquid crystal panel is placed horizontally to prevent one end of the first substrate from sagging and bending , Improve the liquid crystal alignment yield and reduce the cost of LCD panel production.
  • FIG. 1 is a schematic diagram of a front view of the liquid crystal alignment structure of a liquid crystal panel in the prior art
  • FIG. 2 is a schematic diagram of a side view of the liquid crystal alignment structure of a liquid crystal panel in the prior art
  • FIG. 3 is a schematic diagram of a side view structure of a liquid crystal panel provided by an embodiment of the application.
  • FIG. 4 is a schematic diagram of a top view structure of a liquid crystal panel provided by an embodiment of the application.
  • FIG. 5 is a schematic diagram of a front view structure of a liquid crystal alignment device provided by an embodiment of the application.
  • FIG. 6 is a partial structural diagram of a front view of a liquid crystal alignment device according to an embodiment of the application.
  • FIG. 7 is a schematic diagram of the propagation direction of ultraviolet rays in a liquid crystal alignment device according to an embodiment of the application.
  • This application is aimed at the large-size liquid crystal alignment in the prior art, when ultraviolet rays are absorbed by the color resistance of the pixels, the production efficiency of the liquid crystal panel is reduced, and the production cost of the liquid crystal panel is increased.
  • the liquid crystal panel is large in quality, and both ends will sag and bend. In particular, the deformation near the probe position is the greatest, and it is in a recessed state. There is a certain difference between the arrangement direction of the liquid crystal near the recessed area and the preset tilt angle, which affects the technical problem of the display quality of the liquid crystal panel. This embodiment can solve this defect.
  • an embodiment of the present application provides a schematic side view of the structure of a liquid crystal panel.
  • the liquid crystal panel 200 includes a first substrate 2001, a liquid crystal layer 2002, a second substrate 2003, sandwiched between the first substrate 2001 and the liquid crystal layer 2002.
  • the second substrate 2003 is formed with pixel electrodes and color resist layers.
  • the length of the first substrate 2001 is longer than that of the second substrate 2003. Therefore, step areas are formed on both sides of the liquid crystal panel 200, and the common electrode 2041 positions of the step areas on both sides Can be used as a probe to apply a preset voltage position.
  • an embodiment of the present application provides a schematic top view structure of a liquid crystal panel.
  • a laser is used to cut the common electrode side from the front surface of the first substrate 2001, and the exposed electrode area forms an exposed electrode 20012
  • a probe is used in the exposed electrode 20012 to provide a preset voltage to the first substrate 2001 in the liquid crystal panel 200, and different electrical signals are applied to each electrode, so that different electrode regions, chip integrated circuits and plastic frames can be cured.
  • the production efficiency of the liquid crystal panel 200 is improved.
  • an embodiment of the present application provides a liquid crystal alignment device, including a base 201 for carrying a liquid crystal panel 200, a first substrate 2001 in the liquid crystal panel 200 is placed on the base 201, and the liquid crystal panel
  • the color resist layer 20032 and the pixel electrode 20033 in the 200 are arranged in the second substrate 2003 of the liquid crystal panel 200;
  • the curing light source is used to illuminate the first substrate 2001 along the direction of the first substrate 2001 toward the second substrate 2003 to cure the liquid crystal 20021
  • the pretilt angle; the probe is used to provide a curing voltage to the first substrate 2001 through the exposed electrode 20012 of the first substrate 2001.
  • the curing light source is placed between the base 201 and the liquid crystal panel 200.
  • the curing light source includes a light guide plate 202, a plurality of ultraviolet light sources located outside the light guide plate 202, the light guide plate 202 is used to convert the ultraviolet light emitted by the ultraviolet light source
  • the direction of propagation is such that the ultraviolet rays irradiate the forward direction of the liquid crystal panel 200, where the first substrate 2001 in the liquid crystal panel 200 is downward, and the second substrate 2003 in the liquid crystal panel 200 is upward.
  • the ultraviolet light source in this embodiment includes a first ultraviolet light source 2031 and a second ultraviolet light source 2032 that are symmetrically arranged on both sides of the light guide plate 201. According to actual needs, the ultraviolet light source is arranged around the light guide plate 201.
  • the number of ultraviolet light sources is It can be more than one.
  • the cross-sectional shape of the light guide plate 202 is rectangular, including the light incident side surface 2022 and the light incident side surface 2023, and the light exit surface 2014 between the light incident side surface 2022 and the light incident side surface 2023.
  • the light incident side surface 2022 and the light incident side surface 2023 are both planes.
  • the light guide plate A first ultraviolet light source 2031 and a second ultraviolet light source 2032 are provided on the outside of 202.
  • the shapes of the first ultraviolet light source 2031 and the second ultraviolet light source 2032 are preferably circular.
  • the first ultraviolet light source 2031 and the second ultraviolet light source 2032 are used to emit ultraviolet rays, Part of the ultraviolet rays are directly irradiated to the two end areas of the liquid crystal panel 200, such as ultraviolet rays 20312 and 20322; and some ultraviolet rays are irradiated to the light incident side of the light guide plate 202, and the incident angle of the ultraviolet rays is converted by the light guide plate 202. After a 90 degree change, The ultraviolet rays 20312 are emitted from the light emitting surface 2024 to the middle area of the liquid crystal panel 200, such as ultraviolet rays 20311 and 20321.
  • a plurality of probes are provided on the outside of the base 201.
  • the probes are used to provide a preset voltage to the exposed electrodes 20012 in the liquid crystal panel 200.
  • the probes include a first probe 2041 and a second probe 2042. According to actual needs, The number of probes is multiple.
  • the point light source emitted by the ultraviolet light source is converted into a surface light source, which is irradiated vertically upward to the first substrate 2001 of the liquid crystal panel 200.
  • the color resist layer 20032 and the pixel electrode 20033 are arranged in the second substrate 2003 to This solution solves the technical problem that the second substrate 2003 in the liquid crystal panel 200 must be on the bottom and the first substrate 2001 must be on the top.
  • the first substrate 2001 in the liquid crystal panel 200 is downward, and the ultraviolet rays do not pass through the pixel electrode 20033 and the color resist layer. 20032, prevent ultraviolet rays from being absorbed by the color resist layer 20032, and improve the efficiency of liquid crystal alignment.
  • the liquid crystal panel 200 is fixed on the surface of the base 201, and the two ends are clamped in the clamping device, so that the liquid crystal panel 200 is placed horizontally, avoiding one end of the first substrate It will sag and bend, which improves the alignment yield of the liquid crystal 20021 and reduces the production cost of the liquid crystal panel 200; when the liquid crystal layer 2002 is aligned, probes are used in the exposed electrode 20012 to provide a preset voltage to the substrates on both sides of the liquid crystal layer 2002 in the liquid crystal panel 200.
  • Ultraviolet rays and a preset voltage change the orientation of the liquid crystal molecules of the liquid crystal layer 2002, so that the liquid crystal molecules of the liquid crystal layer 2002 are neatly arranged at a preset tilt angle to achieve the purpose of liquid crystal alignment.
  • different electrical signals are applied to each electrode for different electrode regions.
  • the chip integrated circuit and the plastic frame are cured, which improves the production efficiency of the liquid crystal panel 200.
  • One side of the base 201 is provided with a clamping device or both sides are respectively provided with a clamping device, and the clamping device is used to support both sides of one end of the liquid crystal panel.
  • the base 201 is provided with clamping devices symmetrically on both sides.
  • the first clamping device 205 includes a first base 2051, a first horizontal U-shaped cushion block 2052 located on the surface of the first base 2051, The first pad 2053 and the second pad 2054 in the first cavity 2055 of a horizontal U-shaped pad 2052, wherein the first pad 2053 and the second pad 2054 clamp both sides of the liquid crystal panel 200 respectively, and the cavity 2055 is a groove.
  • the end of the liquid crystal panel 200 does not touch the edge of the adjacent first horizontal U-shaped pad 2052, which prevents the end of the liquid crystal panel 200 from colliding with the adjacent first horizontal U-shaped pad 2052, causing damage LCD panel 200.
  • the second clamping device 206 includes a second base 2061, a second horizontal U-shaped cushion block 2062 on the surface of the second base 2061, a third cushion plate 2063 and a second horizontal U-shaped cushion block 2065 in the second cavity 2065 of the second horizontal U-shaped cushion block 2062
  • Four pads 2064 of which, the third pad 2063 and the fourth pad 2064 clamp the two sides of the liquid crystal panel 200 respectively, the cavity 2065 is a groove, and the end of the liquid crystal panel 200 is adjacent to the second horizontal U-shaped pad
  • the edges of 2062 are not in contact, which prevents the end of the liquid crystal panel 200 from colliding with the adjacent second horizontal U-shaped cushion block 2062 and damaging the liquid crystal panel 200.
  • the probe is arranged on the edge of the cavity of the spacer block, and may be arranged on the surface of the liquid crystal panel 200 or the step area formed by the gap between the first substrate 2001 and the second substrate 2003 in the liquid crystal panel 200.
  • the first probe 2041 And the second probe 2042 are respectively disposed at the inner edges of the first cavity 2055 and the second cavity 2065.
  • the clamping device in this embodiment includes a first clamping device 205 and a second clamping device 206.
  • the first clamping device 205 and the second clamping device 206 clamp both ends of the liquid crystal panel 200 and are fixed on the light guide plate 202.
  • the first substrate 2001 faces downwards
  • the second substrate 2003 faces upwards. It is placed horizontally, avoiding sagging and bending at both ends of the liquid crystal panel 200, and no deformation at the probe position, thereby improving the liquid crystal alignment of the liquid crystal panel 200 Yield.
  • the curing light source is not limited to be placed on the surface of the base 201.
  • the curing light source can also be placed directly under the liquid crystal panel 200 and located on the surface of the base 201. Below.
  • the ultraviolet light source may also be arranged at the bottom of the light guide plate 202, and the emitted ultraviolet light enters from the bottom of the light guide plate 202 and irradiates the first substrate 2001 of the liquid crystal panel 200 from the surface of the light guide plate 202.
  • a light guide plate is added to the curing light source.
  • the light guide plate converts the point light source emitted by the ultraviolet light source into a surface light source and illuminates the first substrate of the liquid crystal panel.
  • the color resist layer is arranged on the second substrate, thereby avoiding the liquid crystal alignment
  • the second substrate must be below and the first substrate is above the problem, which realizes that ultraviolet rays do not pass through the pixel color resistance first, which improves the efficiency of liquid crystal alignment.
  • the liquid crystal panel is fixed on the surface of the base, and both ends are clamped in the clamping device. Therefore, the liquid crystal panel is placed horizontally to avoid sagging and bending at both ends of the first substrate, which improves the liquid crystal alignment yield and reduces the production cost of the liquid crystal panel.

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

Abstract

一种液晶配向装置，包括：基台（201），用于承载液晶面板（200），液晶面板（200）中的第一基板（2001）放置在基台（201）上；固化光源，用于照射第一基板（2001）；探针（2041,2042），用于向第一基板（2001）提供电压；采用色阻层（20032）设置在液晶面板（200）的第二基板（2003）中，解决了液晶配向过程中第二基板（2003）必须在下方，第一基板（2001）在上方的问题，从而提高了液晶配向的效率。

Description

液晶配向装置 技术领域
本申请涉及显示技术领域，尤其涉及一种液晶配向装置。
 背景技术
液晶显示器（Liquid Crystal Display，简称LCD）包括第一基板、第二基板、夹于第一基板与第二基板之间的液晶及密封胶框( Sealant)组成,在第一基板与第二基板中间有许多垂直和水平的细小电线，施加电压并进行紫外光照射来改变液晶分子取向，使液晶层的液晶分子以预设倾斜角度整齐排列，从而达到液晶配向的目的。
如图1和图2所示，现有技术中大尺寸的液晶面板100包括液晶层1002，以及位于液晶层1002两侧的第一基板1001和第二基板1003，色阻层设置在第一基板1001中，紫外线从上方照射液晶面板100，探针102在第一基板1001一端部位施加电压U，为了避免色阻层与紫外线发生反应，第二基板1003必须设置在下方；第一基板1001必须设置在上方，造成液晶面板100两侧下垂，弯曲，如图2所示，尤其探针102位置变形最大，呈凹陷状态，该凹陷的区域附近的液晶排列方向与预设倾斜角度存在一定差异，从而影响液晶面板的显示品质。
综上所述，现有技术中大尺寸的液晶配向时，紫外线被像素中色阻吸收，降低液晶面板的生产效率，提高了液晶面板的生产成本，液晶面板由于质量较大，两端会下垂，弯曲，尤其探针位置附近变形最大，呈凹陷状态，该凹陷的区域附近液晶排列方向与预设倾斜角度存在一定差异，从而影响液晶面板的显示品质。
 技术问题
本申请提供一种液晶配向装置，能够解决现有技术中大尺寸的液晶配向时，紫外线被像素中色阻吸收，降低液晶面板的生产效率，提高了液晶面板的生产成本，液晶面板由于质量较大，两端会下垂，弯曲，尤其探针位置附近变形最大，呈凹陷状态，该凹陷的区域附近液晶排列方向与预设倾斜角度存在一定差异，从而影响液晶面板的显示品质的技术问题。
 技术解决方案
为解决上述问题，本申请提供的技术方案如下：
一种液晶配向装置包括：基台，用于承载液晶面板，所述液晶面板中的第一基板放置在所述基台上，所述液晶面板中色阻层和像素电极位于所述液晶面板的第二基板中；固化光源，用于沿所述第一基板朝向第二基板的方向，照射所述第一基板，以固化液晶的预倾角；探针，用于通过所述第一基板的外露电极，向所述第一基板提供固化电压。
根据本申请一优选实施例，所述固化光源放置在所述基台与所述液晶面板之间。
根据本申请一优选实施例，所述固化光源放置在所述基台远离所述液晶面板的方向上，所述基台为透明状。
根据本申请一优选实施例，所述固化光源包括导光板和多个紫外光源，所述导光板用于转换所述紫外光源所散发的紫外线的传播方向，以使所述紫外线沿所述第一基板朝向第二基板的方向，照射所述第一基板。
根据本申请一优选实施例，所述紫外光源设置于所述导光板的外围。
根据本申请一优选实施例，导光板包括两个入光侧面，以及两个所述入光侧面之间出光面。
根据本申请一优选实施例，所述紫外光源设置于所述导光板的底部。
根据本申请一优选实施例，所述基台一侧设置有夹持装置或者两侧分别设置有夹持装置。
根据本申请一优选实施例，所述夹持装置包括底座，所述底座表面的垫块，以及对称设置于所述垫块的腔体内两个垫板，两个所述垫板用于夹持所述液晶面板的一端的两侧。
根据本申请一优选实施例，所述探针设置于所述垫块的腔体内的边缘。
一种液晶配向装置包括：基台，用于承载液晶面板，所述液晶面板中的第一基板放置在所述基台上，所述液晶面板中色阻层和像素电极位于所述液晶面板的第二基板中；固化光源，包括导光板和多个紫外光源，所述导光板用于转换所述紫外光源所散发的紫外线的传播方向，以使所述紫外线沿所述第一基板朝向第二基板的方向，照射所述第一基板,以固化液晶的预倾角；探针，用于通过所述第一基板的外露电极，向所述第一基板提供固化电压。
根据本申请一优选实施例，所述固化光源放置在所述基台与所述液晶面板之间。
根据本申请一优选实施例，所述固化光源放置在所述基台远离所述液晶面板的方向上，所述基台为透明状。
根据本申请一优选实施例，所述紫外光源设置于所述导光板的外围。
根据本申请一优选实施例，导光板包括两个入光侧面，以及两个所述入光侧面之间出光面。
根据本申请一优选实施例，所述入光侧面为平面。
根据本申请一优选实施例，所述紫外光源设置于所述导光板的底部。
根据本申请一优选实施例，所述基台一侧设置有夹持装置或者两侧分别设置有夹持装置。
根据本申请一优选实施例，所述夹持装置包括底座，所述底座表面的垫块，以及对称设置于所述垫块的腔体内两个垫板，两个所述垫板用于夹持所述液晶面板的一端的两侧。
根据本申请一优选实施例，所述探针设置于所述垫块的腔体内的边缘。
 有益效果
相较于现有技术，本申请提供的液晶配向装置，在固化光源中增加导光板，导光板使紫外光源发出的点光源转化成面光源照射到液晶面板的第一基板上，采用色阻层设在液晶面板的第二基板上，从而避免了液晶配向过程中第二基板必须在下方，第一基板在上方的问题，实现了紫外线先不经过像素中色阻层，预防紫外光源被色阻层吸收而，影响液晶配向的反应速率，提高液晶配向的效率，液晶面板固定在基台表面，两端卡持于夹持装置中，使液晶面板水平放置，避免第一基板一端会下垂，弯曲，提高了液晶配向良率，降低液晶面板生产的成本。
 附图说明
为了更清楚地说明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单介绍，显而易见地，下面描述中的附图仅仅是申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为现有技术液晶面板液晶配向正视结构示意图；
图2为现有技术液晶面板液晶配向侧视结构示意图；
图3为本申请实施例提供一种液晶面板的侧视结构示意图；
图4为本申请实施例提供一种液晶面板的俯视结构示意图；
图5为本申请实施例提供一种液晶配向装置的正视结构示意图；
图6为本申请实施例提供一液晶配向装置的正视的部分结构示意图；
图7为本申请实施例提供一液晶配向装置中紫外线传播方向示意图。
 本发明的实施方式
以下各实施例的说明是参考附加的图示，用以例示本申请可用以实施的特定实施例。本申请所提到的方向用语，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申请，而非用以限制本申请。在图中，结构相似的单元是用以相同标号表示。
本申请针对现有技术中大尺寸的液晶配向时，紫外线被像素中色阻吸收，降低液晶面板的生产效率，提高了液晶面板的生产成本，液晶面板由于质量较大，两端会下垂，弯曲，尤其探针位置附近变形最大，呈凹陷状态，该凹陷的区域附近液晶排列方向与预设倾斜角度存在一定差异，从而影响液晶面板的显示品质的技术问题，本实施例能够解决该缺陷。
如图3所示，本申请实施例提供的一种液晶面板的侧视结构示意图，液晶面板200包括第一基板2001，液晶层2002、第二基板2003、夹于第一基板2001和液晶层2002之间电极和芯片集成电路20011，以及夹于第二基板2003和液晶层2002之间电极和芯片集成电路20031，其中，第一基板2001形成有彩膜层和驱动电路层，液晶层2002包括多个液晶20021，第二基板2003形成有像素电极和色阻层，第一基板2001的长度比第二基板2003长，因此液晶面板200两侧形成台阶区，两侧的台阶区的公共电极2041位置可以作为探针施加预设电压的位置。
如图4所示，本申请实施例提供的一种液晶面板的俯视结构示意图，在液晶面板200中用激光从第一基板2001的正面切割公共电极一侧，裸露出来的电极区域形成外露电极20012，液晶层2002配向时，外露电极20012中用探针给液晶面板200中第一基板2001提供预设电压，给各个电极施加不同的电讯号，以便不同电极区域、芯片集成电路和胶框固化，提高了液晶面板200的生产的效率。
如图5和图6所示，本申请实施例提供一种液晶配向装置，包括基台201，用于承载液晶面板200，液晶面板200中的第一基板2001放置在基台201上，液晶面板200中色阻层20032和像素电极20033设置于液晶面板200的第二基板2003中；固化光源，用于沿第一基板2001朝向第二基板2003的方向，照射第一基板2001，以固化液晶20021的预倾角；探针，用于通过第一基板2001的外露电极20012，向第一基板2001提供固化电压。
如图6所示，固化光源放置在基台201与液晶面板200之间，固化光源包括导光板202，位于导光板202的外侧多个紫外光源，导光板202用于转换紫外光源所散发的紫外线的传播方向，以使紫外线照射液晶面板200的正向，其中，液晶面板200中第一基板2001向下，液晶面板200中第二基板2003向上。
如图7所示，本实施例中紫外光源包括对称设置在导光板201两侧的第一紫外光源2031和第二紫外光源2032，根据实际需要，紫外光源围绕着导光板201设置，紫外光源数目可以为多个。
导光板202截面形状为矩形，包括入光侧面2022和入光侧面2023，以及入光侧面2022和入光侧面2023之间出光面2014，入光侧面2022和入光侧面2023均为平面，导光板202外侧设置有第一紫外光源2031和第二紫外光源2032，第一紫外光源2031和第二紫外光源2032的形状优选为圆形，第一紫外光源2031和第二紫外光源2032用于散发紫外线，有部分紫外线直接照射到液晶面板200的两端区域，例如紫外线20312、紫外线20322；还有部分紫外线照射到导光板202的入光侧面，经导光板202转换紫外线的入射角度，变化90度后，从出光面2024射出紫外线20312到液晶面板200的中间区域，例如紫外线20311、紫外线20321。
基台201外侧设置有多个探针，探针用于给液晶面板200中外露电极20012提供预设电压，本实施中探针包括第一探针2041和第二探针2042，根据实际需要，探针的数目为多个。
使用导光板202技术，将紫外光源散发的点光源转化成面光源，垂直向上照射到液晶面板200的第一基板2001，同时采用色阻层20032和像素电极20033设在第二基板2003中，以这样的方案解决了液晶面板200中第二基板2003必须在下，第一基板2001必须在上的技术问题，将液晶面板200中第一基板2001向下，紫外线先不经过像素电极20033和色阻层20032，预防紫外线被色阻层20032吸收，提高了液晶配向的效率，液晶面板200固定在基台201表面，两端卡持于夹持装置中，使液晶面板200水平放置，避免第一基板一端会下垂，弯曲，提高了液晶20021配向良率，降低液晶面板200生产的成本；液晶层2002配向时，外露电极20012中用探针给液晶面板200中液晶层2002两侧基板提供预设电压，紫外线和预设电压来改变液晶层2002液晶分子取向，使液晶层2002的液晶分子以预设倾斜角度整齐排列，达到液晶配向的目的，同时还给各个电极施加不同的电讯号，以便不同电极区域、芯片集成电路和胶框固化，提高了液晶面板200的生产的效率。
基台201一侧设置有夹持装置或者两侧分别设置有夹持装置，该夹持装置用于支承液晶面板的一端的两侧。
如图5所示，本实施中基台201两侧对称设置有夹持装置，第一夹持装置205包括第一底座2051、位于第一底座2051表面的第一水平U型垫块2052，第一水平U型垫块2052的第一腔体2055内第一垫板2053和第二垫板2054，其中，第一垫板2053和第二垫板2054分别夹持液晶面板200两侧，腔体2055为凹槽，液晶面板200的端部与相邻第一水平U型垫块2052的边不接触，避免了液晶面板200的端部与相邻第一水平U型垫块2052相碰，损伤液晶面板200。
第二夹持装置206包括第二底座2061、位于第二底座2061表面的第二水平U型垫块2062，第二水平U型垫块2062的第二腔体2065内第三垫板2063和第四垫板2064，其中，第三垫板2063和第四垫板2064分别夹持液晶面板200两侧，腔体2065为凹槽，液晶面板200的端部与相邻第二水平U型垫块2062的边不接触，避免了液晶面板200的端部与相邻第二水平U型垫块2062相碰，损伤液晶面板200。
探针设置于垫块的腔体边缘，可以设置在液晶面板200表面或者液晶面板200中因第一基板2001和第二基板2003的断差形成的台阶区，本实施例中第一探针2041和第二探针2042分别设置于第一腔体2055和第二腔体2065内边缘处。
本实施例中夹持装置包括第一夹持装置205和第二夹持装置206，第一夹持装置205和第二夹持装置206夹持液晶面板200的两端，固定在导光板202上，液晶面板200中第一基板2001向下，第二基板2003向上，水平放置，避免了液晶面板200两端下垂，弯曲，探针位置处不会产生变形，从而提高了液晶面板200的液晶配向良率。
本实施中并不限于固化光源放置在基台201表面，当基台201为透明，紫外线可以无阻碍的穿过时，固化光源还可以放置在液晶面板200的正下方，且位于在基台201的下方。
紫外光源还可以设置于导光板202的底部，散发出的紫外线从导光板202底部进入，从导光板202的表面照射到液晶面板200的第一基板2001上。
本申请中在固化光源中增加导光板，导光板使紫外光源发出的点光源转化成面光源照射到液晶面板的第一基板上，采用色阻层设在第二基板上，从而避免了液晶配向过程中第二基板必须在下方，第一基板在上方的问题，实现了紫外线先不经过像素色阻，提高液晶配向的效率，液晶面板固定在基台表面，两端卡持于夹持装置中，使液晶面板水平放置，避免第一基板两端下垂，弯曲，提高了液晶配向良率，降低液晶面板生产的成本。
综上，虽然本申请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申请，本领域的普通技术人员，在不脱离本申请的精神和范围内，均可作各种更动与润饰，因此本申请的保护范围以权利要求界定的范围为准。

Claims (21)

  1. 一种显示面板，其包括柔性基板，所述柔性基板包括第一部、弯折部和第二部，所述第一部和所述第二部通过所述弯折部连接；
  2. 一种液晶配向装置，其包括：
    基台，用于承载液晶面板，所述液晶面板中的第一基板放置在所述基台上，所述液晶面板中色阻层和像素电极位于所述液晶面板的第二基板中；
    固化光源，用于沿所述第一基板朝向第二基板的方向，照射所述第一基板，以固化液晶的预倾角；
    探针，用于通过所述第一基板的外露电极，向所述第一基板提供固化电压。
  3. 根据权利要求1所述的液晶配向装置，其中，所述固化光源放置在所述基台与所述液晶面板之间。
  4. 根据权利要求1所述的液晶配向装置，其中，所述固化光源放置在所述基台远离所述液晶面板的方向上，所述基台为透明状。
  5. 根据权利要求1所述的液晶配向装置，其中，所述固化光源包括导光板和多个紫外光源，所述导光板用于转换所述紫外光源所散发的紫外线的传播方向，以使所述紫外线沿所述第一基板朝向第二基板的方向，照射所述第一基板。
  6. 根据权利要求4所述的液晶配向装置，其中，所述紫外光源设置于所述导光板的外围。
  7. 根据权利要求5所述的液晶配向装置，其中，导光板包括两个入光侧面，以及两个所述入光侧面之间出光面。
  8. 根据权利要求4所述的液晶配向装置，其中，所述紫外光源设置于所述导光板的底部。
  9. 根据权利要求1所述的液晶配向装置，其中，所述基台一侧设置有夹持装置或者两侧分别设置有夹持装置。
  10. 根据权利要求8所述的液晶配向装置，其中，所述夹持装置包括底座，所述底座表面的垫块，以及对称设置于所述垫块的腔体内两个垫板，两个所述垫板用于夹持所述液晶面板的一端的两侧。
  11. 根据权利要求9所述的液晶配向装置，其中，所述探针设置于所述垫块的腔体内的边缘。
  12. 一种液晶配向装置，其包括：
    基台，用于承载液晶面板，所述液晶面板中的第一基板放置在所述基台上，所述液晶面板中色阻层和像素电极位于所述液晶面板的第二基板中；
    固化光源，包括导光板和多个紫外光源，所述导光板用于转换所述紫外光源所散发的紫外线的传播方向，以使所述紫外线沿所述第一基板朝向第二基板的方向，照射所述第一基板,以固化液晶的预倾角；
    探针，用于通过所述第一基板的外露电极，向所述第一基板提供固化电压。
  13. 根据权利要求11所述的液晶配向装置，其中，所述固化光源放置在所述基台与所述液晶面板之间。
  14. 根据权利要求11所述的液晶配向装置，其中，所述固化光源放置在所述基台远离所述液晶面板的方向上，所述基台为透明状。
  15. 根据权利要求11所述的液晶配向装置，其中，所述紫外光源设置于所述导光板的外围。
  16. 根据权利要求14所述的液晶配向装置，其中，导光板包括两个入光侧面，以及两个所述入光侧面之间出光面。
  17. 根据权利要求15所述的液晶配向装置，其中，所述入光侧面为平面。
  18. 根据权利要求11所述的液晶配向装置，其中，所述紫外光源设置于所述导光板的底部。
  19. 根据权利要求11所述的液晶配向装置，其中，所述基台一侧设置有夹持装置或者两侧分别设置有夹持装置。
  20. 根据权利要求18所述的液晶配向装置，其中，所述夹持装置包括底座，所述底座表面的垫块，以及对称设置于所述垫块的腔体内两个垫板，两个所述垫板用于夹持所述液晶面板的一端的两侧。
  21. 根据权利要求19所述的液晶配向装置，其中，所述探针设置于所述垫块的腔体内的边缘。
PCT/CN2019/125081 2019-12-02 2019-12-13 液晶配向装置 WO2021109208A1 (zh)

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