WO2018033012A1 - 对盒基板、液晶显示面板及其亮点消除方法 - Google Patents

对盒基板、液晶显示面板及其亮点消除方法 Download PDF

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Publication number
WO2018033012A1
WO2018033012A1 PCT/CN2017/096790 CN2017096790W WO2018033012A1 WO 2018033012 A1 WO2018033012 A1 WO 2018033012A1 CN 2017096790 W CN2017096790 W CN 2017096790W WO 2018033012 A1 WO2018033012 A1 WO 2018033012A1
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WIPO (PCT)
Prior art keywords
substrate
liquid crystal
retaining wall
display panel
crystal display
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PCT/CN2017/096790
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English (en)
French (fr)
Inventor
占玙娟
蒋学兵
吴鹏
高吉磊
Original Assignee
京东方科技集团股份有限公司
合肥鑫晟光电科技有限公司
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Application filed by 京东方科技集团股份有限公司, 合肥鑫晟光电科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US15/764,303 priority Critical patent/US20190056614A1/en
Publication of WO2018033012A1 publication Critical patent/WO2018033012A1/zh

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    • 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
    • G02F1/13394—Gaskets; Spacers; Sealing of cells spacers regularly patterned on the cell subtrate, e.g. walls, pillars
    • 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
    • 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
    • G02F1/1306—Details
    • G02F1/1309—Repairing; Testing
    • 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
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133512—Light shielding layers, e.g. black matrix
    • 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
    • G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device

Definitions

  • the present disclosure relates to the field of display technologies, and in particular, to a box substrate, a liquid crystal display panel, and a method for eliminating bright spots thereof.
  • Liquid crystal display has the advantages of low radiation, small size and low energy consumption, and is widely used in electronic products such as tablet computers, televisions or mobile phones.
  • Embodiments of the present disclosure provide a method for eliminating a box substrate, a liquid crystal display panel, and a bright spot thereof, which can avoid bright spots caused by foreign matter and reduce cost.
  • a counter substrate comprising a substrate, a black matrix and an alignment layer disposed on the substrate, and a retaining wall.
  • the black matrix includes at least a plurality of first light-shielding strips, and an orthographic projection of the retaining wall on the substrate is covered by an orthographic projection of the first light-shielding strip on the substrate; wherein The retaining wall extends in a first direction, the first direction intersecting an orientation direction of the alignment layer.
  • the first direction is perpendicular to an orientation direction of the alignment layer.
  • the lateral width of the retaining wall is smaller than the lateral width of the first light shielding strip.
  • the black matrix includes a plurality of second light shielding strips extending in a second direction, the second direction is disposed to intersect with the first direction, and the retaining wall is disposed on the adjacent second light shielding strips between.
  • the retaining wall has a meandering shape.
  • the black matrix further includes a third light shielding strip; the third light shielding strip is disposed at an intersection of the first light shielding strip and the second light shielding strip; the retaining wall is on the substrate The upper orthographic projection is covered by the orthographic projection of the first light-shielding strip and the third light-shielding strip on the substrate.
  • the retaining wall has protrusions extending along the orientation direction at both ends of the first direction.
  • the plurality of retaining walls are multiple, and each of the retaining walls corresponds to at least one sub-pixel.
  • the pair of cassette substrates further includes a spacer; the material of the retaining wall is the same as the material of the spacer, and is formed on the same layer.
  • liquid crystal display panel comprising the counter substrate of the first aspect.
  • the liquid crystal display panel comprises a Thin Film Transistor (TFT);
  • the black matrix on the pair of cassette substrates includes a third light shielding strip, and the third light shielding strip is lining the pair of cassette substrates
  • An orthographic projection on the bottom covers the orthographic projection of the thin film transistor on the substrate.
  • TFT Thin Film Transistor
  • the height of the retaining wall is 0.1 to 1 ⁇ m smaller than the thickness of the liquid crystal layer of the liquid crystal display panel.
  • a method for eliminating a bright spot in a liquid crystal display panel as described in the above embodiments includes: determining whether a bright spot moves; and if the bright spot moves, lighting the liquid crystal display panel to illuminate until the bright spot is blocked.
  • the aging time is in the range of 0.5 to 3 h, and the aging temperature is in the range of 50 to 120 ° C.
  • Embodiments of the present disclosure provide a method for a box substrate, a liquid crystal display panel, and a bright spot elimination method thereof.
  • the counter substrate is applied to the liquid crystal display panel and energized to the liquid crystal display panel, the liquid crystal molecules therein tend to move toward the alignment direction of the alignment layer, and thus the foreign matter floating in the liquid crystal layer can be moved in the alignment direction.
  • the embodiments of the present disclosure pass Set the retaining wall to block the continued movement of foreign objects.
  • the retaining wall corresponds to the black matrix, the foreign matter blocked by the retaining wall is also covered by the black matrix, thereby improving the bright spots caused by the foreign matter in the prior art. Based on this, the cleanliness requirements in the process can be reduced, thereby reducing costs.
  • FIG. 1 is a schematic top view of a box substrate according to an embodiment of the present disclosure
  • FIG. 2 is a schematic plan view of a box substrate according to another embodiment of the present disclosure.
  • FIG. 3( a ) is a top plan view of a box substrate according to still another embodiment of the present disclosure.
  • Figure 3 (b) is an enlarged view of the A region in 3 (a);
  • FIG. 4(a) is a top plan view of a box substrate according to another embodiment of the present disclosure.
  • Figure 4 (b) is an enlarged view of the B region in 4 (a);
  • FIG. 5 is a schematic top plan view of a box substrate according to another embodiment of the present disclosure.
  • FIG. 6( a ) is a top plan view of a box substrate according to still another embodiment of the present disclosure.
  • Figure 6 (b) is an enlarged view of the C region in 6 (a);
  • Figure 7 is a schematic cross-sectional view of DD' in 6(a);
  • FIG. 8 is a schematic structural diagram of a liquid crystal display panel according to an embodiment of the present disclosure.
  • FIG. 9 is a flowchart of a method for eliminating bright spots in a liquid crystal display panel according to an embodiment of the present disclosure.
  • the embodiment of the present disclosure provides a counter substrate 02.
  • the counter substrate 02 includes a substrate, a black matrix 21 and an alignment layer 26 disposed on the substrate, and a retaining wall 25.
  • the black matrix 21 includes at least a plurality of first light-shielding strips 211, and an orthographic projection of the retaining wall 25 on the substrate is covered by an orthographic projection of the first light-shielding strip 211 on the substrate.
  • the retaining wall 25 extends in a first direction, and the first direction intersects with an orientation direction of the alignment layer 26, as shown in FIGS. 1, 2, 3(a), 4(a), 5, and 6(a) ) shown.
  • the counter substrate 02 may further include a color film, and the color film may include a first primary color filter pattern 22, a second primary color filter pattern 23, and a third primary color filter pattern 24; the first primary color, the second The primary color and the third primary color are the three primary colors.
  • the black matrix 21 and the color film may be formed on the substrate, the retaining wall 25 is formed, and the alignment layer 26 is finally formed.
  • the alignment layer 26 having an orientation direction can be formed by a rubbing method or a photo-alignment method.
  • the orientation direction of the alignment layer 26 is unidirectional, when the counter substrate 02 is applied to the liquid crystal display panel and the liquid crystal display panel is energized, the liquid crystal therein has a tendency to move toward the alignment direction, and the liquid crystal does not. It will move against the direction opposite to the orientation direction.
  • the material of the retaining wall 25 is not limited.
  • the height of the retaining wall 25 should be as high as possible.
  • the orientation direction of the alignment layer 26 may be between 60 and 90 degrees (including 90 degrees) or may be in the range of 80 to 90 degrees.
  • the first direction is two-way.
  • the first direction is perpendicular to the orientation direction of the alignment layer 26, and if the orientation direction of the alignment layer 26 is the vertical direction, the first direction is the horizontal direction.
  • the retaining wall 25 extends in the horizontal direction, that is, may extend from left to right, may extend from right to left, or may extend simultaneously from left to right.
  • the embodiment of the present disclosure provides a counter substrate 02.
  • the liquid crystal molecules therein tend to move toward the alignment direction of the alignment layer 26, so that the foreign matter 04 floating in the liquid crystal layer 03 can be driven toward the orientation. Move in direction.
  • the embodiment of the present disclosure can block the continued movement of the foreign matter 04 by providing the retaining wall 25.
  • the retaining wall 25 corresponds to the black matrix 21, the foreign matter 04 blocked by the retaining wall 25 is also covered by the black matrix 21, so that the bright spots caused by the foreign matter 04 in the prior art can be improved. Based on this, the cleanliness requirements in the process can be reduced, thereby reducing costs.
  • the first direction is perpendicular to the orientation direction of the alignment layer 26 .
  • the foreign matter 04 can be covered by the black matrix 21 as much as possible, thereby further eliminating the bright spots caused by the foreign matter 04.
  • the black matrix 21 includes a first light blocking strip 211, an optional second light blocking strip 212, and a third light blocking strip 213.
  • the purpose of providing the retaining wall 25 is to define the foreign matter 04 in the area covered by the black matrix 21, and the foreign matter 04 has a different size.
  • the lateral width d of the retaining wall 25 is optionally smaller than The lateral width of the first light shielding strip 211.
  • "lateral" refers to a direction perpendicular to the longitudinal direction (or direction of extension) in a top plan view.
  • the retaining wall 25 is disposed near the lower edge of the black matrix 21, so that the foreign matter 04 can be defined at the position of the first light blocking strip 211.
  • the lateral width of the retaining wall 25 is 1/5 to 1/4 of the lateral width of the first light shielding strip 211.
  • each retaining wall 25 corresponds to at least one sub-pixel.
  • the retaining wall 25 has a one-to-one correspondence with the sub-pixels.
  • each of the primary color filter patterns is located in one sub- In the pixel.
  • the embodiment of the present disclosure provides a plurality of retaining walls 25, and more foreign matter 04 can be defined in the area covered by the black matrix 21, thereby better improving the bright spots caused by the foreign matter 04 in the prior art.
  • the foreign matter may move to a gap between the adjacent retaining walls 25 in the first direction, and the gap itself is located between the sub-pixels and belongs to the opaque region. Therefore, the design of the driving electric field of the liquid crystal display panel can ensure that the gap between the adjacent retaining walls 25 is opaque.
  • the arrangement of the black matrix 21 can also be used to ensure the gap between the adjacent retaining walls 25. opaque.
  • the black matrix 21 includes extending in the second direction. a plurality of second light shielding strips 212, the second direction is disposed to intersect with the first direction, and the retaining wall 25 is disposed between the adjacent second light shielding strips 212.
  • both the first direction and the second direction are bidirectional.
  • the end of the retaining wall 25 may have no overlap or only partial overlap with the second light-shielding strip 212 extending in the second direction, which is not limited herein.
  • the retaining wall 25 corresponds to the position of the first light shielding strip 211. That is, as shown in FIGS. 3(a) and 3(b), the retaining wall 25 can be set to a "one" shape. The orientation direction of the actually formed alignment layer 26 may vary. In order to ensure that the deviation occurs, the foreign matter 04 can still be defined at the position of the black matrix 21, as shown in FIGS. 4(a) and 4(b), the retaining wall 25 has both ends along the first direction. The protrusions extending along the orientation direction are provided with protrusions at the two ends of the retaining wall 25. Of course, other shapes may be used, which are not limited herein, as long as the foreign matter 04 can be restrained by the retaining wall 25 and the retaining wall. 25 corresponds to the position of the black matrix 21.
  • the retaining wall 25 has a meandering shape.
  • the black matrix 21 further includes a third light shielding strip 213 ; the third light shielding strip 213 is disposed on the first light shielding strip 211 and the An intersection of the second light-shielding strip 212; an orthographic projection of the retaining wall 25 on the substrate is covered by an orthographic projection of the first light-shielding strip 211 and the third light-shielding strip 213 on the substrate .
  • the shape of the meandering regardless of how the impurities move in the orientation direction, can be caught by the retaining wall and is not easily released.
  • the retaining wall 25 can also be provided in the shape shown in FIG.
  • the pair of the substrate 12 further includes a spacer, and the retaining wall 25
  • the material is the same as the material of the spacer and is formed on the same layer.
  • the retaining wall 25 and the spacer can be formed using a single patterning process.
  • the preparation process can be simplified by simultaneously forming the retaining wall 25 and the spacer.
  • Embodiments of the present disclosure also provide a liquid crystal display panel including the above-described counter substrate.
  • Embodiments of the present disclosure provide a liquid crystal display panel.
  • the liquid crystal display panel When the liquid crystal display panel is energized, the liquid crystal molecules therein tend to move toward the alignment direction of the alignment layer 26, so that the foreign matter 04 floating in the liquid crystal layer 03 can be moved in the alignment direction.
  • the embodiment of the present disclosure can block the continued movement of the foreign matter 04 by providing the retaining wall 25 on the counter substrate 02.
  • the retaining wall 25 corresponds to the black matrix 21
  • the foreign matter 04 blocked by the retaining wall 25 is also covered by the black matrix 21, so that the bright spots caused by the foreign matter 04 in the prior art can be improved. Based on this, the cleanliness requirements in the process can be reduced, thereby reducing costs.
  • the liquid crystal display panel may include a thin film transistor, and the black matrix 21 on the counter substrate 02 includes a third light shielding strip 213, and the orthographic projection of the third light shielding strip 213 on the substrate of the counter substrate 02 An orthographic projection of the thin film transistor on the substrate.
  • the third light-shielding strip 213 blocks the thin film transistor, thereby avoiding the influence of ambient light on the performance of the thin film transistor.
  • the thickness of the retaining wall 25 is 0.1 to 1 ⁇ m smaller than the thickness of the liquid crystal layer of the liquid crystal display panel.
  • the thickness of the retaining wall 25 smaller than the thickness of the liquid crystal layer of the liquid crystal display panel by 0.1 to 1 ⁇ m, it is possible to further maintain the thickness of the cell when the liquid crystal display panel is pressed.
  • the liquid crystal display panel may include an array substrate 01, a counter substrate 02, and a liquid crystal layer 03 disposed therebetween.
  • the embodiment of the present disclosure further provides a method for eliminating bright spots in a liquid crystal display panel as described in the above embodiments, including: determining whether a bright spot moves, and if the bright spot moves, lighting the liquid crystal display panel until the bright spot is blocked.
  • the aging time can be controlled within the range of 0.5 to 3 h, and the aging temperature can be controlled within the range of 50 to 120 °C.
  • the aging time and the aging temperature can be adjusted according to the parameters of the actual liquid crystal display panel.
  • the surface of the liquid crystal display panel can be tapped, and it is detected whether there is a bright spot and whether the bright spot moves. If no bright spots are detected, the liquid crystal display The display panel is a good product. If a bright spot is detected and the bright spot does not move, the liquid crystal display panel is a defective product. If a bright spot is detected and the bright spot is movable, the liquid crystal display panel is lighted and aged until the bright spot is blocked.
  • step “lighting the liquid crystal display panel until the bright spot is occluded” means that if an aging process is completed, if a bright spot can be detected, the next round of aging is performed until the bright spot is Blocked and cannot be seen.
  • the embodiment of the present disclosure when the liquid crystal display panel is energized, the liquid crystal molecules therein tend to move toward the alignment direction of the alignment layer, and thus the foreign matter floating in the liquid crystal layer can be moved to move in the alignment direction. Based on this, the embodiment of the present disclosure can block the continued movement of the foreign matter by providing the retaining wall. Moreover, since the retaining wall corresponds to the black matrix, the foreign matter blocked by the retaining wall is also covered by the black matrix, thereby improving the bright spots caused by the foreign matter in the prior art. Based on this, the cleanliness requirements in the process can be reduced, thereby reducing costs.

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  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
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Abstract

一种对盒基板（02）、液晶显示面板及其亮点消除方法，涉及显示技术领域，可避免异物造成的亮点，且降低成本。该对盒基板（02）包括衬底、设置在衬底上的黑矩阵（21）和取向层（26）、以及挡墙（25）。其中，黑矩阵（21）至少包括多个第一遮光条（211），挡墙（25）在衬底上的正投影被第一遮光条（211）在衬底上的正投影覆盖；其中，挡墙（25）沿第一方向延伸，第一方向与取向层（26）的取向方向交叉。

Description

对盒基板、液晶显示面板及其亮点消除方法
相关申请
本申请要求保护在2016年8月18日提交的申请号为201610688836.4的中国专利申请的优先权，该申请的全部内容以引用的方式结合到本文中。
技术领域
本公开涉及显示技术领域，尤其涉及一种对盒基板、液晶显示面板及其亮点消除方法。
背景技术
液晶显示器(Liquid Crystal Display，简称LCD)具有低辐射、体积小及低耗能等优点，被广泛地应用在平板电脑、电视或手机等电子产品中。
然而，由于液晶显示面板的制程较长且过程复杂，在制备中经常会出现由于清洗不干净残留的异物或是制程中带入的异物。而部分异物会浮游在液晶层中，当点亮液晶显示面板时，若异物位于透光区域，就会看到亮点。亮点的存在直接影响了液晶显示面板的质量。
目前，为了避免出现异物造成的亮点，对制程中的洁净度要求非常高，但这也无法完全避免异物的存在，而且还会导致成本的大幅提升。
发明内容
本公开的实施例提供一种对盒基板、液晶显示面板及其亮点消除方法，可避免异物造成的亮点，且降低成本。
为达到上述目的，本公开的实施例采用如下技术方案：
第一方面，提供一种对盒基板，包括衬底、设置在所述衬底上的黑矩阵和取向层、以及挡墙。其中，所述黑矩阵至少包括多个第一遮光条，所述挡墙在所述衬底上的正投影被所述第一遮光条在所述衬底上的正投影覆盖；其中，所述挡墙沿第一方向延伸，所述第一方向与所述取向层的取向方向交叉。
可选的，所述第一方向与所述取向层的取向方向垂直。
可选的，所述挡墙的横向宽度小于所述第一遮光条的横向宽度。
可选的，所述黑矩阵包括沿第二方向延伸的多个第二遮光条，所述第二方向与所述第一方向交叉设置，所述挡墙设置在相邻的第二遮光条之间。
可选的，所述挡墙具有曲折的形状。
可选的，所述黑矩阵还包括第三遮光条；所述第三遮光条设置在所述第一遮光条和所述第二遮光条的交叉位置处；所述挡墙在所述衬底上的正投影被所述第一遮光条和所述第三遮光条在所述衬底上的正投影覆盖。
进一步可选的，所述挡墙沿所述第一方向的两端具有沿着所述取向方向延伸的凸起。
可选的，所述挡墙为多个，每个所述挡墙与至少一个子像素对应。
基于上述，可选的，所述对盒基板还包括隔垫物；所述挡墙的材料与所述隔垫物的材料相同，且形成在同一层上。
第二方面，提供一种液晶显示面板，包括第一方面所述的对盒基板。
可选的，所述液晶显示面板包括薄膜晶体管(Thin Film Transistor，简称TFT)；所述对盒基板上的黑矩阵包括第三遮光条，所述第三遮光条在所述对盒基板的衬底上的正投影覆盖所述薄膜晶体管在所述衬底上的正投影。
可选的，所述挡墙的高度比所述液晶显示面板的液晶层厚度小0.1～1μm。
第三方面，提供一种消除如以上实施例所述的液晶显示面板中亮点的方法，包括：判断亮点是否移动；若亮点移动，对所述液晶显示面板进行点灯老化，直到亮点被遮挡。
可选的，老化时间在0.5～3h的范围内，老化温度在50～120℃的范围内。
本公开实施例提供了一种对盒基板、液晶显示面板及其亮点消除方法。当对盒基板应用于液晶显示面板且向液晶显示面板通电时，其中的液晶分子有向取向层的取向方向移动的趋势，因而可以带动浮游在液晶层中的异物向所述取向方向移动。基于此，本公开实施例通过 设置挡墙，可以阻挡异物的继续移动。并且，由于挡墙与黑矩阵对应，被挡墙阻挡的异物也会被黑矩阵覆盖，因而可以改善现有技术中异物造成的亮点。基于此，可降低制程中的洁净度要求，因此可降低成本。
附图说明
为了更清楚地说明本公开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地介绍，显而易见地，下面描述中的附图仅仅是本公开的一些实施例，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为本公开实施例提供的一种对盒基板的俯视示意图；
图2为本公开另一实施例提供的一种对盒基板的俯视示意图；
图3(a)为本公开又一实施例提供的一种对盒基板的俯视示意图；
图3(b)为3(a)中A区域的放大图；
图4(a)为本公开另一实施例提供的一种对盒基板的俯视示意图；
图4(b)为4(a)中B区域的放大图；
图5为本公开另一实施例提供的一种对盒基板的俯视示意图；
图6(a)为本公开又一实施例提供的一种对盒基板的俯视示意图；
图6(b)为6(a)中C区域的放大图；
图7为6(a)中DD′向剖视示意图；
图8为本公开实施例提供的一种液晶显示面板的结构示意图；以及
图9为本公开实施例提供的一种消除液晶显示面板中亮点的方法的流程图。
附图标记：
01-阵列基板；02-对盒基板；03-液晶层；04-异物；21-黑矩阵；211-第一遮光条；212-第二遮光条；213-第三遮光条；22-第一基色滤光图案；23-第二基色滤光图案；24-第二基色滤光图案；25-挡墙；26-取向层。
具体实施方式
下面将结合本公开实施例中的附图，对本公开实施例中的技术方 案进行清楚、完整地描述，显然，所描述的实施例仅仅是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
本公开实施例提供一种对盒基板02。如图1-图7所示，所述对盒基板02包括衬底、设置在衬底上的黑矩阵21和取向层26、以及挡墙25。所述黑矩阵21至少包括多个第一遮光条211，所述挡墙25在衬底上的正投影被所述第一遮光条211在衬底上的正投影覆盖。其中，所述挡墙25沿第一方向延伸，所述第一方向与所述取向层26的取向方向交叉，如图1、2、3(a)、4(a)、5和6(a)所示。
当然，所述对盒基板02还可以包括彩膜，所述彩膜可以包括第一基色滤光图案22、第二基色滤光图案23和第三基色滤光图案24；第一基色、第二基色和第三基色为三原色。
基于此，当对盒基板02包括彩膜时，如图7所示，可先在衬底上形成黑矩阵21和彩膜，再形成挡墙25，最后形成取向层26。
需要说明的是，第一，本领域技术人员应该明白，可以采用摩擦方法或光取向方法制备而成，从而形成具有取向方向的取向层26。
其中，由于取向层26的取向方向是单向性的，当对盒基板02应用于液晶显示面板，且向液晶显示面板通电时，其中的液晶有向所述取向方向移动的趋势，而且液晶不会逆着与所述取向方向相反的方向移动。
第二，不对挡墙25的材料进行限定。
此外，为了阻挡尽可能多的异物04跨过挡墙25而移动到透光区，挡墙25的高度应该尽可能高。
第三，为了阻挡尽可能多的异物04，取向层26的取向方向与第一方向的锐角夹角可在60～90°(包含90°)，或者可以在80～90°的范围内。
其中，第一方向是双向的。示例的，以第一方向与取向层26的取向方向垂直为例，若取向层26的取向方向为竖直方向，那么第一方向则为水平方向。相应地，挡墙25沿水平方向延伸，即可由左向右延伸，也可以由右向左延伸，或者可以向左向右同时延伸。
第四，本公开实施例的附图仅以第一方向与取向层26的取向方向 垂直为例进行示意。
本公开实施例提供一种对盒基板02。当对盒基板02应用于液晶显示面板且向液晶显示面板通电时，其中的液晶分子有向取向层26的取向方向移动的趋势，因而可以带动浮游在液晶层03中的异物04向所述取向方向移动。基于此，本公开实施例通过设置挡墙25，可以阻挡异物04的继续移动。并且，由于挡墙25与黑矩阵21对应，被挡墙25阻挡的异物04也会被黑矩阵21覆盖，因而可以改善现有技术中异物04造成的亮点。基于此，可降低制程中的洁净度要求，因此可降低成本。
可选的，如图1-图7所示，所述第一方向与取向层26的取向方向垂直。这样通过合理设置挡墙25相对黑矩阵21的位置，可尽可能多的使异物04被黑矩阵21覆盖，进一步消除异物04造成的亮点。
黑矩阵21包括第一遮光条211、可选的第二遮光条212以及第三遮光条213。设置挡墙25的目的是将异物04限定在有黑矩阵21覆盖的区域，而且异物04具有不同的尺寸。为了尽可能的将大尺寸的异物04也限定在与挡墙25对应的第一遮光条211位置处，如图1-图7所示，可选地，所述挡墙25的横向宽度d小于所述第一遮光条211的横向宽度。在本公开的上下文中，“横向”指的是在俯视示意图中，垂直于纵向方向(或延伸方向)的方向。
示例的，若取向方向为竖直方向，则挡墙25靠近黑矩阵21的下边缘设置，从而可以将异物04限定在第一遮光条211位置处。
进一步地，所述挡墙25的横向宽度为所述第一遮光条211的横向宽度的1/5～1/4。
可选的，如图2-6所示，挡墙25为多个，每个挡墙25与至少一个子像素对应。
进一步可选的，挡墙25与子像素一一对应。
此处，当对盒基板包括彩膜，所述彩膜包括第一基色滤光图案22、第二基色滤光图案23和第三基色滤光图案24时，每个基色滤光图案位于一个子像素中。
本公开实施例将挡墙25设置为多个，可以将更多的异物04都限定在有黑矩阵21覆盖的区域内，从而更好的改善现有技术中异物04造成的亮点。
其中，异物可能会移动至沿第一方向相邻的挡墙25之间的间隙，而该间隙本身位于子像素之间，属于不透光区域。因此，可通过液晶显示面板的驱动电场的设计来保证该相邻挡墙25之间的间隙不透光，当然也可利用黑矩阵21的布置形式来保证该相邻挡墙25之间的间隙不透光。
可选的，为了使所述对盒基板02适用范围更广(即，可适用于任意类型的驱动电场)，如图3-图7所示，所述黑矩阵21包括沿第二方向延伸的多个第二遮光条212，所述第二方向与所述第一方向交叉设置，所述挡墙25设置在相邻的第二遮光条212之间。
需要说明的是，第一方向和第二方向均是双向的。
第二，挡墙25的端部可以与沿第二方向延伸的第二遮光条212无重叠或只有部分重叠，在此不做限定。
本公开实施例中，即使异物04位于沿第二方向延伸的第二遮光条212上，也不会造成亮点。基于此，通过将挡墙25设置在沿第二方向延伸的第二遮光条212之间，可以节省材料，降低成本。
在此基础上一些实施例中，挡墙25与第一遮光条211位置对应。即，如图3(a)和3(b)所示，可以将挡墙25设置为“一”字型，。实际制作出的取向层26的取向方向会有偏差。为了保证出现偏差时，仍能将异物04限定在黑矩阵21位置处，也可以如图4(a)和4(b)所示，所述挡墙25沿所述第一方向的两端具有沿着所述取向方向延伸的凸起在挡墙25的两端设置凸起，当然还可以是其他形状，在此不做限定，只要能通过挡墙25将异物04限定在与所述挡墙25对应的黑矩阵21位置处即可。
因此，可选的，所述挡墙25具有曲折的形状。
可选的，如图6(a)和6(b)所示，所述黑矩阵21还包括第三遮光条213；所述第三遮光条213设置在所述第一遮光条211和所述第二遮光条212的交叉位置处；所述挡墙25在所述衬底上的正投影被所述第一遮光条211和所述第三遮光条213在所述衬底上的正投影覆盖。
本公开实施例中，利用曲折的形状，无论杂质在所述取向方向上如何移动，都能被挡墙捕获并且不易被释放。
当然，挡墙25也可设置为如图5所示的形状。
基于上述，可选的，所述对盒基板02还包括隔垫物，所述挡墙25 的材料与隔垫物的材料相同，且形成在同一层上。利用这样的布置形式，可以使用一次构图工艺来形成所述挡墙25和隔垫物。
本公开实施例中，通过同步形成挡墙25和隔垫物，可简化制备工艺。
本公开实施例还提供一种液晶显示面板，包括上述的对盒基板。
本公开实施例提供一种液晶显示面板。当向该液晶显示面板通电时，其中的液晶分子有向取向层26的取向方向移动的趋势，因而可以带动浮游在液晶层03中的异物04向所述取向方向移动。基于此，本公开实施例通过在对盒基板02上设置挡墙25，可以阻挡异物04的继续移动。并且，由于挡墙25与黑矩阵21对应，被挡墙25阻挡的异物04也会被黑矩阵21覆盖，因而可以改善现有技术中异物04造成的亮点。基于此，可降低制程中的洁净度要求，因此可降低成本。
所述液晶显示面板可以包括薄膜晶体管，所述对盒基板02上的黑矩阵21包括第三遮光条213，所述第三遮光条213在所述对盒基板02的衬底上的正投影覆盖所述薄膜晶体管在所述衬底上的正投影。
通过第三遮光条213遮挡薄膜晶体管，可避免外界环境光对薄膜晶体管性能的影响。
可选的，挡墙25的厚度比所述液晶显示面板的液晶层厚度小0.1～1μm。
本公开实施例中，通过将挡墙25的厚度比所述液晶显示面板的液晶层厚度小0.1～1μm，可在液晶显示面板被按压时，进一步起到维持盒厚的作用。
示例的，如图8所示，液晶显示面板可以包括阵列基板01、对盒基板02、以及设置在二者之间的液晶层03。
本公开实施例还提供一种消除如以上实施例所述的液晶显示面板中亮点的方法，包括：判断亮点是否移动，若亮点移动，对所述液晶显示面板进行点灯老化，直到亮点被遮挡。
此处，老化时间可控制在0.5～3h的范围内，老化温度可控制在50～120℃的范围内。当然，老化时间以及老化温度可根据实际液晶显示面板的参数进行调整。
具体的，如图9所示，首先，可轻敲液晶显示面板表面，并检测是否有亮点以及亮点是否会移动。若没有检测到亮点，则所述液晶显 示面板为良品。若检测到亮点且亮点不移动，则所述液晶显示面板为不良品。若检测到亮点且亮点可移动，则对所述液晶显示面板进行点灯老化，直到亮点被遮挡。
需要说明的是，步骤“对所述液晶显示面板进行点灯老化，直到亮点被遮挡”意味着，当一个老化过程完成之后，若还能检测到亮点，则进行下一轮的老化，直到亮点被遮挡而不能被看到。
本公开实施例中，向液晶显示面板通电时，其中的液晶分子有向取向层的取向方向移动的趋势，因而可以带动浮游在液晶层中的异物向所述取向方向移动。基于此，本公开实施例通过设置挡墙，可以阻挡异物的继续移动。并且，由于挡墙与黑矩阵对应，被挡墙阻挡的异物也会被黑矩阵覆盖，因而可以改善现有技术中异物造成的亮点。基于此，可降低制程中的洁净度要求，因此可降低成本。
以上所述，仅为本公开的具体实施方式，但本公开的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本公开揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本公开的保护范围之内。因此，本公开的保护范围应以所述权利要求的保护范围为准。

Claims (14)

  1. 一种对盒基板，包括衬底、设置在所述衬底上的黑矩阵和取向层、以及挡墙；
    其中，所述黑矩阵至少包括多个第一遮光条，所述挡墙在所述衬底上的正投影被所述第一遮光条在所述衬底上的正投影覆盖；
    其中，所述挡墙沿第一方向延伸，所述第一方向与所述取向层的取向方向交叉。
  2. 根据权利要求1所述的对盒基板，其中，所述第一方向与所述取向层的取向方向垂直。
  3. 根据权利要求1或2所述的对盒基板，其中，所述挡墙的横向宽度小于所述第一遮光条的横向宽度。
  4. 根据权利要求1所述的对盒基板，其中，所述黑矩阵包括沿第二方向延伸的多个第二遮光条，所述第二方向与所述第一方向交叉设置，所述挡墙设置在相邻的第二遮光条之间。
  5. 根据权利要求4所述的对盒基板，其中，所述挡墙具有曲折的形状。
  6. 根据权利要求4或5所述的对盒基板，其中，所述黑矩阵还包括第三遮光条；所述第三遮光条设置在所述第一遮光条和所述第二遮光条的交叉位置处；
    所述挡墙在所述衬底上的正投影被所述第一遮光条和所述第三遮光条在所述衬底上的正投影覆盖。
  7. 根据权利要求4所述的对盒基板，其中，所述挡墙沿所述第一方向的两端具有沿着所述取向方向延伸的凸起。
  8. 根据权利要求1或4所述的对盒基板，其中，所述挡墙为多个，每个所述挡墙与至少一个子像素对应。
  9. 根据权利要求1所述的对盒基板，其中，还包括隔垫物；
    所述挡墙的材料与所述隔垫物的材料相同，且形成在同一层上。
  10. 一种液晶显示面板，其中，包括权利要求1-9任一项所述的对盒基板。
  11. 根据权利要求10所述的液晶显示面板，其中，所述液晶显示面板包括薄膜晶体管；
    所述对盒基板上的黑矩阵包括第三遮光条，所述第三遮光条在所述对盒基板的衬底上的正投影覆盖所述薄膜晶体管在所述衬底上的正投影。
  12. 根据权利要求10或11所述的液晶显示面板，其中，所述挡墙的高度比所述液晶显示面板的液晶层厚度小0.1～1μm。
  13. 一种消除如权利要求10-12任一项所述的液晶显示面板中亮点的方法，包括：
    判断亮点是否移动；
    若亮点移动，对所述液晶显示面板进行点灯老化，直到亮点被遮挡。
  14. 根据权利要求13所述的方法，其中，老化时间在0.5～3h的范围内，老化温度在50～120℃的范围内。
PCT/CN2017/096790 2016-08-18 2017-08-10 对盒基板、液晶显示面板及其亮点消除方法 WO2018033012A1 (zh)

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CN106054435B (zh) * 2016-08-18 2019-09-06 京东方科技集团股份有限公司 一种对盒基板、液晶显示面板及其亮点消除方法
CN108461042B (zh) * 2018-03-27 2020-03-17 京东方科技集团股份有限公司 一种柔性显示面板及其制作方法、显示装置
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