WO2016192210A1 - 配向膜的形成方法和液晶显示器 - Google Patents

配向膜的形成方法和液晶显示器 Download PDF

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Publication number
WO2016192210A1
WO2016192210A1 PCT/CN2015/087372 CN2015087372W WO2016192210A1 WO 2016192210 A1 WO2016192210 A1 WO 2016192210A1 CN 2015087372 W CN2015087372 W CN 2015087372W WO 2016192210 A1 WO2016192210 A1 WO 2016192210A1
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Prior art keywords
display area
alignment
display
substrate
alignment film
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English (en)
French (fr)
Inventor
张伟基
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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Priority to US14/785,841 priority Critical patent/US9798191B2/en
Publication of WO2016192210A1 publication Critical patent/WO2016192210A1/zh
Anticipated expiration legal-status Critical
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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
    • G02F1/1337—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
    • 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
    • G02F1/133388—Constructional arrangements; Manufacturing methods with constructional differences between the display region and the peripheral region
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/12—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode
    • G02F2201/121—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode common or background

Definitions

  • the present invention relates to the field of flat display, and in particular to a method for forming an alignment film and a liquid crystal display.
  • the liquid crystal display device generally includes a liquid crystal display panel including an alignment film which can provide a pretilt angle to the liquid crystal molecules to make the rotation direction uniformity of the liquid crystal molecules better.
  • the alignment film is usually formed by solidification of the alignment liquid. Due to the low solid content and low viscosity in the alignment liquid, the alignment liquid has a certain fluidity, and therefore, when the alignment liquid is printed or dropped into a rectangular shape, On the substrate, the alignment liquid will flow to the periphery to expand, so that the four corners of the cured alignment film tend to exhibit a "rounded corner" state.
  • the alignment film corresponding to the corner of the display region exhibits a "rounded corner” state, thereby causing the display region of the liquid crystal display panel It is difficult to form an alignment film in the corner, which results in poor consistency of the rotation direction of the liquid crystal molecules corresponding to the corners of the display region of the liquid crystal display panel, thereby making the display quality of the liquid crystal display panel poor.
  • the invention provides a method for forming an alignment film, and the method for forming the alignment film comprises:
  • the substrate includes a display area and a non-display area, wherein the display area includes a plurality of sides, an apex angle is formed between adjacent sides, and the non-display area is disposed around the display area;
  • the first alignment liquid and the second alignment liquid are baked to form an alignment film.
  • the non-display area of the substrate includes a first triangular area and a second triangular area surrounding the apex angle of the display area, wherein the first triangular area includes a first side, a second side, and a third
  • the second triangular region includes a fourth side, a fifth side, and a sixth side, the first side and the fourth side being located on a diagonal line of the display area passing through the top corner, The second side and the fifth side are respectively located on two side edges forming the top corner;
  • the second alignment liquid surrounding the apex angle of the display area in the non-display area of the substrate includes:
  • a second alignment liquid is disposed in the first triangular region and the second triangular region of the non-display area.
  • the length of the first side and the fourth side are equal, and the length AP of the first side and the fourth side is equal to AR[(2) 1/2 -1], where the AR is 1.5. Mm ⁇ 2.5mm.
  • the length AX of the second side and the length AY of the fifth side are both equal to (AR-AP)(2) 1/2 .
  • the first alignment liquid comprises a plurality of alignment droplets, and the alignment droplets are distributed in a matrix form in the display region.
  • the shape of the region formed by the second alignment liquid surrounding each of the apex angles of the display region is different.
  • the shape of the region formed by the second alignment liquid surrounding each vertex of the display region is the same.
  • the substrate comprises a display area and a non-display area, wherein the display area comprises a plurality of sides, and an apex angle is formed between adjacent sides, the non-display area Between the display area setting" and the step “setting the first alignment liquid in the display area of the substrate” further includes:
  • the substrate includes a surface on which a conductive layer is formed
  • the step of “setting a first alignment liquid in a display area of the substrate” includes:
  • a first alignment liquid is disposed on the conductive layer corresponding to the display region.
  • the conductive layer is a common electrode layer.
  • the alignment liquid expands to the tearing flow, And causing the periphery of the cured alignment film to exhibit a "rounded corner" state
  • the present invention provides a second alignment liquid surrounding the apex angle of the display area by the non-display area, due to the second alignment liquid pair setting Compensating action of the first alignment liquid at the apex angle of the display area, thereby eliminating the phenomenon of "rounded corners" appearing around the alignment film formed by the first alignment liquid and the second alignment liquid after flow solidification .
  • the alignment film formed by the method for forming the alignment film of the present invention can satisfy the requirement of a narrow bezel, and can make the display region be filled with the alignment film, so that the uniformity of the rotation direction of the liquid crystal molecules corresponding to the display region is good. Improve the display quality of the liquid crystal display panel.
  • the present invention also provides a liquid crystal display comprising two substrates and a liquid crystal layer disposed between the two substrates, wherein
  • the substrate includes a display area and a non-display area, wherein the display area includes a plurality of side edges, an apex angle is formed between adjacent side edges, and the non-display area is disposed around the display area;
  • the display area of the substrate is provided with a first alignment film
  • a non-display area of the substrate is provided with a second alignment film around a top corner of the display area.
  • the non-display area of the substrate includes a first triangular area surrounding the apex angle of the display area and the second triangular area, wherein the first triangular area includes a first side, a second side, and In a third pass, the second triangular region includes a fourth side, a fifth side, and a sixth side, wherein the first side and the fourth side are located at a diagonal of the display area passing through the top corner.
  • the second side and the fifth side are respectively located on two side edges forming the top corner, and the second alignment film is disposed in the first triangular area and the second triangular area.
  • the length of the first side and the fourth side are equal, and the length AP of the first side and the fourth side is equal to AR[(2) 1/2 -1], where the AR is 1.5. Mm ⁇ 2.5mm.
  • the length AX of the second side and the length AY of the fifth side are both equal to (AR-AP)(2) 1/2 .
  • the shape of the region formed by the second alignment film surrounding each of the apex angles of the display region is different.
  • the regions formed by the second alignment films surrounding the respective apex angles of the display regions have the same shape.
  • the substrate includes a surface on which a conductive layer is formed, and a first alignment film is disposed on the conductive layer corresponding to the display region.
  • the conductive layer is a common electrode layer.
  • FIG. 1 is a flow chart of a method of forming an alignment film according to a preferred embodiment of the present invention.
  • FIG. 2 to FIG. 5 are schematic diagrams showing processes corresponding to respective steps in the method for forming the alignment film of FIG. 1.
  • Figure 6 is an enlarged schematic view of the portion I in Figure 5.
  • FIG. 1 is a flow chart of a method for forming an alignment film according to a preferred embodiment of the present invention.
  • the alignment film is applied to a liquid crystal display panel for providing a pretilt angle for liquid crystal molecules to make the rotation direction uniformity of the liquid crystal molecules better.
  • the method of forming the alignment film includes, but is not limited to, the following steps.
  • a substrate 100 is provided.
  • the substrate 100 includes a display area 110 and a non-display area 120.
  • the display area 110 includes a plurality of side edges 111, and an apex angle 113 is formed between two adjacent side edges 111.
  • the non-display area 120 is disposed around the display area 110.
  • Step S102 providing a first alignment liquid in the display area 110 of the substrate 100.
  • a second alignment liquid surrounding the vertex angle 113 of the display area 110 is disposed in the non-display area 120 of the substrate 100.
  • the first alignment liquid and the second alignment liquid are only for distinguishing the alignment liquid disposed at the display area 110 and the non-display area 120, the first The components of the alignment liquid and the second alignment liquid may be the same or different, and are not limited herein. It can be understood that, in the present embodiment, when the first alignment liquid and the second alignment liquid are disposed in different steps, the first alignment liquid and the second alignment are not The order in which the liquid is set is limited.
  • the display region 110 of the substrate 100 is provided with the first alignment liquid, and then a second alignment liquid surrounding the vertex angle 113 of the display region 110 is disposed in the non-display region 120 of the substrate 100.
  • a second alignment liquid surrounding the vertex angle 113 of the display region 110 may be first disposed in the non-display region 120 of the substrate 100, followed by the display on the substrate 100.
  • the region 110 sets the first alignment liquid.
  • the first alignment liquid is disposed in the display region 110 of the display region 100 of the substrate, and the top of the display region 110 is disposed in the non-display region 120 of the substrate 100.
  • the second alignment liquid of the corner 113 is simultaneously performed.
  • Step S104 baking the first alignment liquid and the second alignment liquid to form an alignment film.
  • the first alignment liquid and the second alignment liquid are baked through this step to form the first alignment liquid and the second alignment liquid to form an alignment film.
  • the non-display area 120 of the substrate 110 includes a first triangular area 121 and a second triangular area 123 surrounding the apex angle 113 of the display area 110.
  • the first triangular region 121 includes a first side 121a, a second side 121b, and a third side 121c.
  • the second triangular area 123 includes a fourth side 123a, a fifth side 123b, and a sixth side 123c.
  • the first side 121a, the second side 121b, and the third side 121c are sequentially connected to form a triangular area, and the fourth side 123a, the fifth side 123b, and the sixth side 123c are sequentially Connected to form a triangular area.
  • the first side 121a and the fourth side 123a are located on a diagonal line of the display area 110 passing through the top corner 113, and the second side 121b and the fifth side 123b are respectively located at a forming station.
  • the two sides 111 of the apex angle 113 are described.
  • One end of the third side 121c is located on the side edge 111, the other end is located on a diagonal line of the display area 110 passing through the top corner 113, and one end of the sixth side 123c is located on the side edge.
  • the other end is located on the diagonal of the display area 110 through the apex angle 113.
  • the “step S103, the second alignment liquid surrounding the vertex angle 113 of the display area 110 is disposed in the non-display area 120 of the substrate 100” includes: the in the non-display area 120 The first triangular region 121 and the second triangular region 123 are provided with a second alignment liquid.
  • the first side 121a and the fourth side 123a are equal in length, and the first side 121a and the fourth side 123a are coincident.
  • the radius of the circle in which the arc is located is AR, wherein the AR is related to the viscosity of the alignment liquid, the solid content, the material of the dropped substrate, and the degree of surface roughness.
  • the AR is 1.5 mm to 2.5 mm.
  • the viscosity of the first alignment liquid and the second alignment liquid is 7CP, and the solid content is 3.5%, for example, the first alignment liquid is dropped on the surface of Indium Tin Oxide (ITO) and In the second alignment liquid, the AR is 2.2 mm.
  • ITO Indium Tin Oxide
  • the first alignment liquid includes a plurality of alignment droplets, and the alignment droplets are distributed in a matrix in the display region 110.
  • the non-display area 120 of the substrate 110 includes the first triangular area 121 and the second triangular area 123 surrounding the vertices 113 of the display area 110 as an example, the first triangular area 121 is taken as an example. A specific relationship is made between the three sides of the second triangular region 123. It is to be understood that the above embodiment is only a preferred embodiment. In other embodiments, the first triangular area 121 and the second triangle 123 may not have the specific relationship described above.
  • the shape of the region formed by the second alignment liquid surrounding each of the apex angles 113 of the display region 110 is different. In another embodiment, the regions formed by the second alignment liquid surrounding each of the apex angles 113 of the display region 110 have the same shape.
  • step S101 Preferably, the following steps are further included between step S101 and step S102.
  • the substrate 100 includes a surface on which a conductive layer is formed.
  • the step S102, the setting the first alignment liquid in the display area 110 of the substrate 100 includes: setting the first alignment liquid corresponding to the display area 110 on the conductive layer.
  • the conductive layer is a common electrode layer, and the conductive layer may be made of, but not limited to, indium tin oxide.
  • the alignment liquid when the alignment droplets are dropped onto the rectangular substrate, the alignment liquid will flow and spread around the tearing away, thereby causing the periphery of the cured alignment film to exhibit a "rounded corner" state, and the present invention passes the non-display.
  • the region 120 is disposed with a second alignment liquid surrounding the vertex angle 113 of the display region 110, thereby eliminating the compensation effect of the second alignment liquid on the first alignment liquid disposed at the vertex angle 113 of the display region 110, thereby eliminating The alignment film formed by the first alignment liquid and the second alignment liquid after the flow curing has a phenomenon of "rounding" around.
  • the alignment film formed by the method for forming the alignment film of the present invention can satisfy the need of a narrow bezel, and the display region 110 can be filled with the alignment film, thereby The uniformity of the rotation direction of the liquid crystal molecules corresponding to the display region 110 is good, and the display quality of the liquid crystal display panel is improved.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
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Abstract

一种配向膜的形成方法及液晶显示器。所述配向膜的形成方法包括：提供一基板（100），所述基板（100）包括显示区域（110）及非显示区域（120），其中，所述显示区域（110）包括多个侧边（111），相邻的侧边（111）之间形成顶角（113），所述非显示区域（120）围绕所述显示区域（110）设置；在所述基板（100）的显示区域（110）设置第一配向液；在所述基板（100）的非显示区域（120）设置环绕所述显示区域（110）的顶角（113）的第二配向液；烘烤所述第一配向液以及所述第二配向液以形成配向膜。

Description

一种配向膜的形成方法及液晶显示器
本发明要求2015年6月5日递交的发明名称为“一种配向膜的形成方法”的申请号201510307124.9的在先申请优先权，上述在先申请的内容以引入的方式并入本文本中。
技术领域
本发明涉及平面显示领域，尤其涉及一种配向膜的形成方法及液晶显示器。
背景技术
液晶显示装置(Liquid Crystal Display,LCD)作为一种常见的液晶显示装置，由于其具有低功耗、体积小、质量轻等特点，因此备受用户的青睐。液晶显示装置通常包括液晶显示面板，液晶显示面板中包括配向膜，所述配向膜可以给液晶分子提供一个预倾角，以使得液晶分子的旋转方向一致性更好。配向膜通常由配向液固化后形成，由于配向液中的固体含量较低、粘性较低等特点，使得配向液具有一定的流动性，因此，当所述配向液喷印或者滴入到矩形的基板上时，所述配向液会向四周流动扩张，从而导致固化后的配向膜的四个角往往会呈现“圆角”的状态。随着窄边框的发展，当要求配向膜与液晶显示面板的显示区域的边缘距离很小时，所述显示区域的角落对应的配向膜由于呈现“圆角”状态，从而使得液晶显示面板的显示区域的角落很难形成配向膜，从而导致液晶显示面板的显示区域的角落对应的液晶分子的旋转方向的一致性较差，进而使得所述液晶显示面板的显示品质较差。
发明内容
本发明提供一种配向膜的形成方法，所述配向膜的形成方法包括：
提供一基板，所述基板包括显示区域及非显示区域，其中，所述显示区域包括多个侧边，相邻的侧边之间形成顶角，所述非显示区域围绕所述显示区域设置；
在所述基板的显示区域设置第一配向液；
在所述基板的非显示区域设置环绕所述显示区域的顶角的第二配向液；
烘烤所述第一配向液以及所述第二配向液以形成配向膜。
其中，所述基板的非显示区域包括环绕所述显示区域的所述顶角的第一三角形区域及第二三角形区域，其中，所述第一三角形区域包括第一边、第二边及第三边，所述第二三角形区域包括第四边、第五边及第六边，所述第一边与所述第四边位于所述显示区域的穿过所述顶角的对角线上，所述第二边及所述第五边分别位于形成所述顶角的两个侧边上；
所述在所述基板的非显示区域设置环绕所述显示区域的顶角的第二配向液包括：
在所述非显示区域的所述第一三角形区域及所述第二三角形区域设置第二配向液。
其中，所述第一边与所述第四边的长度相等，且所述第一边与所述第四边的长度AP等于AR[(2)1/2-1]，其中，AR为1.5mm～2.5mm。
其中，所述第二边的长度AX与所述第五边的长度AY均等于(AR-AP)(2)1/2。
其中，所述第一配向液包括多个配向液滴，所述配向液滴在所述显示区域内呈矩阵状分布。
其中，环绕所述显示区域的各顶角的第二配向液形成的区域形状不同。
其中，环绕所述显示区域的各顶角的第二配向液形成的区域的形状相同。
其中，在所述步骤“提供一基板，所述基板包括显示区域及非显示区域，其中，所述显示区域包括多个侧边，相邻的侧边之间形成顶角，所述非显示区域围绕所述显示区域设置”及所述步骤“在所述基板的显示区域设置第一配向液”之间还包括：
所述基板包括表面，在所述表面上形成导电层；
所述步骤“在所述基板的显示区域设置第一配向液”包括：
在所述导电层上对应所述显示区域设置第一配向液。
其中，所述导电层为公共电极层。
现有技术中配向液滴入到矩形的基板上时，配向液会向撕走流动扩展，从 而导致固化后的配向膜的四周呈现“圆角”状态，而本发明通过在所述非显示区域设置环绕所述显示区域的顶角的第二配向液，由于所述第二配向液对设置在所述显示区域的顶角的第一配向液的补偿作用，从而消除了所述第一配向液及所述第二配向液在流动固化之后形成的配向膜存在四周出现“圆角”的现象。因此，经过本发明配向膜的形成方法形成的配向膜能够满足窄边框的需要，能够使得显示区域均布满配向膜，从而使得所述显示区域对应的液晶分子的旋转方向的一致性较好，提高了液晶显示面板的显示品质。
本发明还提供了一种液晶显示器，包括两基板及设置在两基板之间的液晶层，其中，
所述基板包括显示区域及非显示区域，其中，所述显示区域包括多个侧边，相邻的侧边之间形成顶角，所述非显示区域围绕所述显示区域设置；
所述基板的显示区域设置有第一配向膜；
所述基板的非显示区域环绕所述显示区域的顶角设置有第二配向膜。
其中，所述基板的非显示区域包括环绕所述显示区域的所述顶角的第一三角形区域及所述第二三角形区域，其中，所述第一三角形区域包括第一边、第二边及第三遍，所述第二三角形区域包括第四边、第五边及第六边，所述第一边与所述第四边位于所述显示区域的穿过所述顶角的对角线上，所述第二边及所述第五边分别位于形成所述顶角的两个侧边上，所述第二配向膜设置在所述第一三角形区域及所述第二三角形区域内。
其中，所述第一边与所述第四边的长度相等，且所述第一边与所述第四边的长度AP等于AR[(2)1/2-1]，其中，AR为1.5mm～2.5mm。
其中，所述第二边的长度AX与所述第五边的长度AY均等于(AR-AP)(2)1/2。
其中，环绕所述显示区域的各顶角的第二配向膜形成的区域的形状不同。
其中，环绕所述显示区域各个顶角的第二配向膜形成的区域的形状相同。
其中，所述基板包括表面，所述表面上形成导电层，所述导电层上对应所述显示区域设置第一配向膜。
其中，所述导电层为公共电极层。
附图说明
为了更清楚地说明本发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地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，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为本发明一较佳实施方式的配向膜的形成方法的流程图。
图2至图5为图1中配向膜的形成方法中的各步骤对应的制程示意图。
图6为图5中I处的放大示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明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发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，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，都属于本发明保护的范围。
请参阅图1，图1为本发明一较佳实施方式的配向膜的形成方法的流程图。所述配向膜应用于液晶显示面板中，用于为液晶分子提供一个预倾角，以使液晶分子的旋转方向一致性更好。所述配向膜的形成方法包括但不仅限于以下步骤。
步骤S101，提供一基板100，所述基板100包括显示区域110及非显示区域120，其中，所述显示区域110包括多个侧边111，相邻的两个侧边111之间形成顶角113，所述非显示区域120围绕所述显示区域110设置。
步骤S102，在所述基板100的所述显示区域110设置第一配向液。
步骤S103，在所述基板100的所述非显示区域120设置围绕所述显示区域110的顶角113的第二配向液。可以理解地，在本实施方式中，所述第一配向液及所述第二配向液仅仅是为了区分设置于所述显示区域110及所述非显示区域120处的配向液，所述第一配向液与所述第二配向液的成分可以相同也可以不同，在此不做限定。可以理解地，虽然在本实施方式中，在所述第一配向液及所述第二配向液设置时写在不同的步骤里面，但是并不是对所述第一配向液及所述第二配向液设置时的顺序进行限定。在一种实施方式中，可以先在 所述基板100的所述显示区域110设置所述第一配向液，接着在所述基板100的所述非显示区域120设置围绕所述显示区域110的顶角113的第二配向液。在另一种实施方式中，也可以先在所述基板100的所述非显示区域120设置围绕所述显示区域110的顶角113的第二配向液，接着在所述基板100的所述显示区域110设置所述第一配向液。在其他实施方式中，在所述基板的所述显示区域100的所述显示区域110设置第一配向液，以及在所述基板100的所述非显示区域120设置围绕所述显示区域110的顶角113的第二配向液同时进行。
步骤S104，烘烤所述第一配向液以及所述第二配向液以形成配向膜。经过此步骤烘烤所述第一配向液及所述第二配向液以使得所述第一配向液及所述第二配向液形成配向膜。
在一实施方式中，所述基板110的所述非显示区域120包括环绕所述显示区域110的所述顶角113的第一三角形区域121及第二三角形区域123。其中，所述第一三角形区域121包括第一边121a、第二边121b及第三边121c，所述第二三角形区域123包括第四边123a、第五边123b及第六边123c。所述第一边121a、所述第二边121b及所述第三边121c依次相连以形成一个三角形的区域，所述第四边123a、所述第五边123b及所述第六边123c依次相连以形成一个三角形区域。所述第一边121a与所述第四边123a位于所述显示区域110的穿过所述顶角113的对角线上，所述第二边121b及所述第五边123b分别位于形成所述顶角113的两个侧边111上。所述第三边121c的一端位于所述侧边111上，另一端位于所述显示区域110的穿过所述顶角113的对角线上，所述第六边123c一端位于所述侧边111上，另一端位于所述显示区域110穿过所述顶角113的对角线上。此时，所述“步骤S103，在所述基板100的所述非显示区域120设置围绕所述显示区域110的顶角113的第二配向液”包括：在所述非显示区域120的所述第一三角形区域121及所述第二三角形区域123设置第二配向液。
在本实施方式中，所述第一边121a与所述第四边123a的长度相等且所述第一边121a与所述第四边123a重合，为了方便描述，所述第一边121a与所述第四边123a的长度命名为AP，AP＝AR[(2)1/2-1]，其中，若配向液滴在所述基板100上时，则所述配向液则会往外扩展成一个圆弧，所述圆弧所在的 圆的半径则为AR，其中，AR与配向液的粘度，固含量以及所滴入的基板的材质以及表面粗糙程度相关。通常情况下，在制备液晶显示面板时，AR为1.5mm～2.5mm。这里以所述第一配向液及所述第二配向液的粘度为7CP，固含量为3.5％为例，则在氧化铟锡(Indium Tin Oxide，ITO)的表面滴下所述第一配向液及所述第二配向液时，所述AR为2.2mm。
所述第二边121b的长度AX以及所述第五边123b的长度AY相等，为AX＝AY＝(AR-AP)(2)1/2。
所述第一配向液包括多个配向液滴，所述配向液滴在所述显示区域110内呈矩阵状分布。
可以理解地，虽然前面以所述基板110的非显示区域120包括环绕所述显示区域110的各顶角113的第一三角形区域121及第二三角形区域123为例且所述第一三角形区域121与所述第二三角形区域123的三个边之间具有特定的关系进行介绍。可以理解地，上述实施方式只是一个优选的实施方式，在其他实施方式中，所述第一三角形区域121与所述第二三角形123也可以不具有上述特定关系。在一实施方式中，环绕所述显示区域110的各顶角113的第二配向液形成的区域的形状不同。在另一实施方式中，环绕所述显示区域110的各顶角113的第二配向液形成的区域的形状相同。
优选地，在步骤S101和步骤S102之间还包括如下步骤。
步骤I，所述基板100包括表面，在所述表面上形成导电层。则所述步骤S102，在所述基板100的所述显示区域110设置第一配向液包括：在所述导电层上对应所述显示区域110设置所述第一配向液。在一实施方式中，所述导电层为公共电极层，所述导电层的材质可以为但不仅限于为氧化铟锡。
现有技术中配向液滴入到矩形的基板上时，配向液会向撕走四周流动扩展，从而导致固化后的配向膜的四周呈现“圆角”状态，而本发明通过在所述非显示区域120设置环绕所述显示区域110的顶角113的第二配向液，由于所述第二配向液对设置在所述显示区域110的顶角113的第一配向液的补偿作用，从而消除了所述第一配向液及所述第二配向液在流动固化之后形成的配向膜存在四周出现“圆角”的现象。因此，经过本发明配向膜的形成方法形成的配向膜能够满足窄边框的需要，能够使得显示区域110均布满配向膜，从而使 得所述显示区域110对应的液晶分子的旋转方向的一致性较好，提高了液晶显示面板的显示品质。
以上所揭露的仅为本发明一种较佳实施例而已，当然不能以此来限定本发明之权利范围，本领域普通技术人员可以理解实现上述实施例的全部或部分流程，并依本发明权利要求所作的等同变化，仍属于发明所涵盖的范围。

Claims (17)

  1. 一种配向膜的形成方法，其中，所述配向膜的形成方法包括：
    提供一基板，所述基板包括显示区域及非显示区域，其中，所述显示区域包括多个侧边，相邻的侧边之间形成顶角，所述非显示区域围绕所述显示区域设置；
    在所述基板的显示区域设置第一配向液；
    在所述基板的非显示区域设置环绕所述显示区域的顶角的第二配向液；
    烘烤所述第一配向液以及所述第二配向液以形成配向膜。
  2. 如权利要求1所述的配向膜的形成方法，其中，所述基板的非显示区域包括环绕所述显示区域的所述顶角的第一三角形区域及第二三角形区域，其中，所述第一三角形区域包括第一边、第二边及第三边，所述第二三角形区域包括第四边、第五边及第六边，所述第一边与所述第四边位于所述显示区域的穿过所述顶角的对角线上，所述第二边及所述第五边分别位于形成所述顶角的两个侧边上；
    所述在所述基板的非显示区域设置环绕所述显示区域的顶角的第二配向液包括：
    在所述非显示区域的所述第一三角形区域及所述第二三角形区域设置第二配向液。
  3. 如权利要求2所述的配向膜的形成方法，其中，所述第一边与所述第四边的长度相等，且所述第一边与所述第四边的长度AP等于AR[(2)1/2-1]，其中，AR为1.5mm～2.5mm。
  4. 如权利要求3所述的配向膜的形成方法，其中，所述第二边的长度AX与所述第五边的长度AY均等于(AR-AP)(2)1/2。
  5. 如权利要求1所述的配向膜的形成方法，其中，所述第一配向液包括多 个配向液滴，所述配向液滴在所述显示区域内呈矩阵状分布。
  6. 如权利要求1所述的配向膜的形成方法，其中，环绕所述显示区域的各顶角的第二配向液形成的区域形状不同。
  7. 如权利要求1所述的配向膜的形成方法，其中，环绕所述显示区域的各顶角的第二配向液形成的区域的形状相同。
  8. 如权利要求1所述的配向膜的形成方法，其中，在所述步骤“提供一基板，所述基板包括显示区域及非显示区域，其中，所述显示区域包括多个侧边，相邻的侧边之间形成顶角，所述非显示区域围绕所述显示区域设置”及所述步骤“在所述基板的显示区域设置第一配向液”之间还包括：
    所述基板包括表面，在所述表面上形成导电层；
    所述步骤“在所述基板的显示区域设置第一配向液”包括：
    在所述导电层上对应所述显示区域设置第一配向液。
  9. 如权利要求8所述的所述的配向膜的形成方法，其中，所述导电层为公共电极层。
  10. 一种液晶显示器，包括两基板及设置在两基板之间的液晶层，其中，
    所述基板包括显示区域及非显示区域，其中，所述显示区域包括多个侧边，相邻的侧边之间形成顶角，所述非显示区域围绕所述显示区域设置；
    所述基板的显示区域设置有第一配向膜；
    所述基板的非显示区域环绕所述显示区域的顶角设置有第二配向膜。
  11. 如权利要求10所述的液晶显示器，其中，所述基板的非显示区域包括环绕所述显示区域的所述顶角的第一三角形区域及所述第二三角形区域，其中，所述第一三角形区域包括第一边、第二边及第三遍，所述第二三角形区域 包括第四边、第五边及第六边，所述第一边与所述第四边位于所述显示区域的穿过所述顶角的对角线上，所述第二边及所述第五边分别位于形成所述顶角的两个侧边上，所述第二配向膜设置在所述第一三角形区域及所述第二三角形区域内。
  12. 如权利要求11所述的液晶显示器，其中，所述第一边与所述第四边的长度相等，且所述第一边与所述第四边的长度AP等于AR[(2)1/2-1]，其中，AR为1.5mm～2.5mm。
  13. 如权利要求12所述的液晶显示器，其中，所述第二边的长度AX与所述第五边的长度AY均等于(AR-AP)(2)1/2。
  14. 如权利要求10所述的液晶显示器，其中，环绕所述显示区域的各顶角的第二配向膜形成的区域的形状不同。
  15. 如权利要求10所述的液晶显示器，其中，环绕所述显示区域各个顶角的第二配向膜形成的区域的形状相同。
  16. 如权利要求10所述的液晶显示器，其中，所述基板包括表面，所述表面上形成导电层，所述导电层上对应所述显示区域设置第一配向膜。
  17. 如权利要求16所述的液晶显示器，其中，所述导电层为公共电极层。
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