WO2017117848A1 - 液晶显示器及其制造方法 - Google Patents

液晶显示器及其制造方法 Download PDF

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Publication number
WO2017117848A1
WO2017117848A1 PCT/CN2016/074470 CN2016074470W WO2017117848A1 WO 2017117848 A1 WO2017117848 A1 WO 2017117848A1 CN 2016074470 W CN2016074470 W CN 2016074470W WO 2017117848 A1 WO2017117848 A1 WO 2017117848A1
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WIPO (PCT)
Prior art keywords
retaining wall
substrate
liquid crystal
active region
crystal display
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PCT/CN2016/074470
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English (en)
French (fr)
Inventor
黄世帅
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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 US15/021,704 priority Critical patent/US10209570B2/en
Publication of WO2017117848A1 publication Critical patent/WO2017117848A1/zh
Anticipated expiration legal-status Critical
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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
    • G02F1/133711—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
    • G02F1/1333—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
    • G02F1/133514—Colour filters
    • 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
    • G02F1/133707—Structures for producing distorted electric fields, e.g. bumps, protrusions, recesses, slits in pixel electrodes
    • 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
    • G02F1/133723—Polyimide, polyamide-imide
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • G02F1/13394—Gaskets; Spacers; Sealing of cells spacers regularly patterned on the cell subtrate, e.g. walls, pillars

Definitions

  • the present invention relates to a liquid crystal display and a method of fabricating the same, and more particularly to an oriented film retaining wall structure and an oriented film manufacturing method relating to a liquid crystal display.
  • TFT Thin Film Transistor
  • a thin film transistor liquid crystal display basically includes an array substrate (Array Substrate) and a color film substrate (Color) Filter) and a liquid crystal layer (Liquid Crystal Layer) is between the array substrate and the color filter substrate.
  • Array Substrate array substrate
  • Color film substrate Color film substrate
  • Liquid Crystal Layer liquid crystal layer
  • an alignment film is formed on one or both of the array substrate and the color filter substrate. Film), and then an alignment groove is formed on the alignment film to constitute an alignment layer.
  • the alignment film is now inkjet printed from Polyimide (PI) solution (Ink-Jet) Made by Printing).
  • PI Polyimide
  • Ink-Jet Ink-Jet
  • a retaining wall is formed between the sealing frame and the active area (Active Between Area).
  • the retaining wall is made of polystyrene (PS) and has a height which is more than ten times the thickness of the oriented film.
  • a retaining wall 10 is formed on a color filter substrate 12, and a polyimide liquid 14 is applied to the array substrate 12 and flows toward the retaining wall 10 in the direction of the arrow 16.
  • the retaining wall 10 is a vertical vertical wall.
  • the polyimide liquid 14 is injected onto the top surface of the color filter substrate 12 in multiple points.
  • the reflowed polyimide liquid 14 cannot be returned to the entire plane of the color filter substrate 12, but will accumulate in the vicinity of the retaining wall 10, resulting in an uneven thickness of the alignment film.
  • the resulting display has gap spots (Gap Mura) can't have a higher product yield.
  • the flush surface structure of the retaining wall 10 is conventionally used, which makes it possible for the polyimide liquid 14 to flow upward when the speed at which the polyimide liquid 14 is injected is not controlled.
  • the retaining wall 10 reaches the sealing frame to cause contamination and peeling of the sealing frame.
  • the present invention provides a liquid crystal display comprising: a substrate defining an active region and a non-active region surrounding the active region; a plastic frame on the non-active region; an oriented film retaining wall Between the encapsulation frame and the active region on the non-active region; and an alignment film on the active region of the substrate and extending outward to the alignment film barrier At the wall; wherein the oriented mold retaining wall is a wavy structure.
  • the alignment film is made of a polyimide liquid
  • the alignment film retaining wall is made of polystyrene.
  • the oriented film retaining wall has a rectangular profile with four walls, and the substrate forms a polyimide liquid injection position mark at a corner where one wall and another wall meet.
  • the polyimide liquid injection position mark is located between two adjacent convex portions of the wavy structure.
  • the substrate is at least one of an array substrate and a color filter substrate.
  • the invention also provides a method for manufacturing a liquid crystal display, comprising providing a substrate having an active region and an inactive region surrounding the active region; forming a plastic frame on the non-active region; Forming an alignment film retaining wall between the seal frame and the active region on the non-active region, wherein the alignment film retaining wall has a wavy structure; and injecting a liquid forming the alignment film A material is in the alignment film retaining wall to form an alignment film on the active region and extend to the alignment film retaining wall.
  • the liquid material forming the alignment film is a polyimide liquid.
  • the alignment film retaining wall has a square wall having four walls, and the substrate is formed with a polyimide liquid injection position mark at a corner where the four walls are connected.
  • Each of the injection marks is between two adjacent convex portions of the wavy structure, and when a polyimide liquid is injected, a polyimide liquid is first injected at some of the injection marks.
  • the polyimide liquid is injected into the wavy structure adjacent to the convex portion of the injection mark.
  • the injected polyimide liquid flows into the recess of the undulating structure along the edge of the undulating structure.
  • the invention can directly implant the polyimide film by the arrangement of the alignment film retaining wall with the wavy structure and the wavy structure toward the convex portion of the active region, so that the formed alignment film has a uniform thickness, and The injected polyimide liquid does not easily pass over the alignment film retaining wall to cause contamination and peeling of the sealing frame, thereby improving the production yield of the liquid crystal display.
  • 1A is a schematic cross-sectional view of an array substrate having a conventional alignment film retaining wall and a polyimide liquid flowing toward the retaining wall;
  • FIG. 1B is a schematic view showing the polyimide liquid of FIG. 1A blocked by the retaining wall and rising upward and backward;
  • FIG. 1C is a schematic view showing the formation of an alignment film of the polyimide liquid in FIG. 1B;
  • Figure 2 is a top view showing a substrate constructed in accordance with the present invention.
  • Figure 3 is an enlarged schematic view showing a corner portion of the oriented film retaining wall of Figure 2;
  • Figure 4 is a schematic enlarged view of a straight line portion of the oriented film retaining wall of Figure 2, wherein the polyimide liquid is injected into the first position;
  • Figure 5 is a schematic view showing the flow of the polyimide liquid of Figure 4 from a first position to a second position.
  • a first embodiment is constructed according to an embodiment of the present invention.
  • the substrate can be an array substrate or a color film substrate.
  • the substrate 20 is an array substrate.
  • the display substrate 20 has an active area (Active Area) 30 (or display area (Display Area)) and a non-active area (Non-Active Area) 32 (or non-display area (Non-Display) The area surrounds the active area 30.
  • the array substrate 20 has a rectangular shape, and has a rectangular glass substrate 22, a rectangular sealing frame 24 on the top surface of the glass substrate 22 and near the edge thereof, and a rectangular alignment film retaining wall 26 of the glass.
  • the top surface of the substrate 22 is interposed between the encapsulation frame 24 and the active region 30.
  • the encapsulation frame 24 is used to closely bond with a color filter substrate to prevent liquid crystal molecules in a liquid crystal layer from flowing out between the array substrate and the color filter substrate.
  • the retaining wall 26 can be made of polystyrene (Polystyrene) (PS)).
  • PS polystyrene
  • the retaining wall 26 has four walls 262, 264, 266, 268 connected to the four corners of the retaining wall 26, respectively.
  • Each wall has a wavy shape as seen from a top view.
  • Four cross-shaped polyimide liquid injection position marks 28 are formed on the top surface of the glass substrate 22 and are respectively positioned on the four corners of the retaining wall 26.
  • Each of the four corners of the barrier wall 26 may have a slit 269 to effectively prevent countercurrent diffusion of the polyimide liquid toward the active region 30 when the polyimide liquid is applied.
  • the size of the slit 269 is controlled so that the polyimide liquid does not flow to the seal frame. It is known in the art that the slit can be omitted, so that the four corners of the retaining wall are sealed.
  • each wall 264 (266) has a projection 270 that projects toward the active region 30 and a recess 272 that is recessed relative to the active region 30.
  • the injection position mark 28 is positioned between two adjacent convex portions 270 at the corners of the retaining wall 26.
  • FIG. 4 a partial enlarged view of a wall 264 of the oriented film retaining wall 26 is shown.
  • the protrusions 270 are adjacent to each other by a fixed distance.
  • An injection head (not shown) is moved to inject a corresponding drop of polyimide liquid 280 in front of each convex portion.
  • the drop of polyimide liquid flows into the associated recess 272 along the convex surface of the wall 264.
  • the alignment film retaining wall 26 is wavy, the flow of the polyimide liquid toward the alignment film retaining wall 26 flows along the curved edge between the convex portion and the concave portion. Buffering the force acting between the polyimide liquid and the alignment film retaining wall 26, the polyimide liquid cannot pass over the alignment film retaining wall 26, thereby achieving control of the polyimide liquid coating. boundary.
  • the present invention can effectively prevent the outflow of the polyimide liquid and contaminate the sealing frame and thereby seal the sealing frame.
  • the alignment film retaining wall 26 does not generate a strong reaction force to the flow of the polyimide liquid, and the polyimide liquid is reflowed and accumulated.
  • the presence of a non-uniform thickness of the alignment film in the vicinity of the alignment film retaining wall, and thus the resulting gap spots, can also be avoided in the present invention.
  • the production yield of the product can be effectively improved.

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

Abstract

一种液晶显示器，具有一基板（20）界定有一有源区域（30）和一非有源区域（32）环绕所述有源区域（30），一封框胶（24）位在所述基板（20）有源区域（30）上用来和另一基板相连接以密封在所述二基板间的一液晶层，一取向膜挡墙（26）位在所述非有源区域（32）上并位在所述封胶框（24）和所述有源区域（30）之间，所述取向膜挡墙（26）为一波浪状结构，具有凸部（270）和凹部（272），所述凸部（270）系朝向所述有源区域（30）。当施加聚酰亚胺液于所述基板（20）上以形成一取向膜时，聚酰亚胺液是滴在所述取向膜挡墙（26）的凸部（270）的前方，之后聚酰亚胺液会沿着所述取向膜挡墙（26）之波浪状结构的边缘流入所述凹部（272）中。

Description

液晶显示器及其制造方法 技术领域
本案涉及一液晶显示器及其制造方法，特别是一种有关液晶显示器的取向膜挡墙结构和取向膜制造方法。
 背景技术
液晶显示器(Liquid Crystal Display)，特别是薄膜晶体管液晶显示器(Thin Film Transistor (TFT) LCD)是当前平板显示器的主要产品之一，已经成为现在信息产品及视讯产品的重要显示平台。
薄膜晶体管液晶显示器基本上包括一数组基板(Array Substrate)、一彩膜基板(Color Filter)和一液晶层(Liquid Crystal Layer)介于所述数组基板和所述彩膜基板之间。当介于所述数组基板和所述彩膜基板间的电场特性改变时，所述液晶层内的液晶分子会做不同程度的旋转来导引不同强度的光线自所述数组基板经所述液晶层来到所述达彩膜基板，藉此以显示所要的图像。
为使所述液晶层中的所述液晶分子可有一定的取向，在所述数组基板和所述彩膜基板之一者或二者上会先形成有一取向膜(Alignment Film)，接着在所述取向膜上形成取向槽以构成取向层。所述取向膜现在是由聚酰亚胺(Polyimide (PI))液以喷墨印刷(Ink-Jet Printing)方式所制成。为防止在喷墨印刷聚酰亚胺液时扩散太快而入侵和污染封胶框(Sealant)，一挡墙系形成介于所述封胶框和有源区域(Active Area)之间。所述挡墙系由聚苯乙烯(Polystyrene (PS))所制成，具有一高度可为所述取向膜厚度的十余倍之多。
参考图1A，一挡墙10系形成在一彩膜基板12上，聚酰亚胺液14被施加在所述数组基板12上并沿着箭头16的方向朝所述挡墙10流动。所述挡墙10为一平齐垂直的竖墙。所述聚酰亚胺液14为多点注入在所述彩膜基板12的顶面上。
参考图1B，当所述聚酰亚胺液14流到所述挡墙10时会受到所述挡墙10阻挡，所述挡墙10会对所述聚酰亚胺液14产生一较大的反作用力，使所述聚酰亚胺液14沿箭头18方向向上和往回流动。
参考图1C，回流的所述聚酰亚胺液14并无法回流至所述彩膜基板12的整个平面上，而会积堆在所述挡墙10的附近，造成取向膜有一不平均的厚度进而使形成的显示器有间隙斑点(Gap Mura)的问题而无法有一较高的产品生产良率。
再者，习用所述挡墙10的平齐挡面结构，其会使当注入所述聚酰亚胺液14的速度没控制好时，所述聚酰亚胺液14是有可能向上流动越过所述挡墙10而到达封胶框造成封胶框的污染和剥离。
因此，需要提出新的取向膜挡墙结构和取向膜制造方法以解决习用技艺的问题。
 技术问题
本发明提供一种液晶显示器，包括有：一基板界定有一有源区域和一非有源区域环绕所述有源区域；一封胶框位在所述非有源区域上；一取向膜挡墙位在述非有源区域上介于所述封胶框和所述有源区域之间；及一取向膜位在所述基板的所述有源区域上且向外延伸至所述取向膜挡墙处；其中，所述取向模挡墙为波浪状结构。
技术解决方案
较佳地，所述取向膜为由聚酰亚胺液所制成，及所述取向膜挡墙为由聚苯乙烯所制成。
较佳地，所述取向膜挡墙为一长方形轮廓具有四片墙，所述基板在一片墙和另外一片墙交接的角落处形成有一聚酰亚胺液注入位置记号。
较佳地，所述聚酰亚胺液注入位置记号为位在所述波浪状结构的二个相邻凸部之间。
较佳地，所述基板为数组基板和彩膜基板中之至少一者。
本发明亦提供一种制造一液晶显示器的方法，包括有提供一基板具有一有源区域和一非有源区域环绕所述有源区域；形成一封胶框在所述非有源区域上；形成一取向膜挡墙位在所述非有源区域上介于所述封胶框和所述有源区域之间，其中所述取向膜挡墙有一波浪状结构；及注入形成取向膜的液态材料于取向膜挡墙中以形成取向膜在所述有源区域上及延伸至所述取向膜挡墙处。
较佳地，所述形成取向膜的液态材料为聚酰亚胺液。
较佳地，所述取向膜挡墙为四方形轮廓具有四片墙，所述基板在四片墙交接的角落处形成有聚酰亚胺液注入位置记号, 每一注入记号为在所述波浪状结构的二相邻凸部之间，当注入聚酰亚胺液时，先在些注入标记处注入聚酰亚胺液。
较佳地，在注入标记处注入聚酰亚胺液后，再注入聚酰亚胺液于所述波浪状结构邻近所述注入标记之凸部之前方处。
较佳地，注入的聚酰亚胺液会沿着所述波浪状结构的边缘来流入所述波浪状结构的凹部。
 有益效果
本发明可直接藉由具波浪状结构的取向膜挡墙的设置及在波浪状结构朝有源区域之凸部之前方处注入聚酰亚胺液，使形成的取向膜有一均匀的厚度，且注入的聚酰亚胺液不会轻易越过所述取向膜挡墙来造成封胶框的污染及剥离，藉此以提高液晶显示器的生产良率。
附图说明
图1A是一数组基板的剖面示意图，其上有一习用的取向膜挡墙及聚酰亚胺液流向所述挡墙；
图1B显示图1A中的所述聚酰亚胺液被所述挡墙阻挡而向上和回流的示意图；
图1C显示图1B中聚酰亚胺液形成取向膜的示意图；
图2为一顶视图，显示一依据本发明所构建的基板；
图3为图2中的取向膜挡墙的一角落部分放大示意图；
图4为图2中的取向膜挡墙的一直线部分放大示意图，其中聚酰亚胺液被注入在第一位置上；及
图5为显示图4中的聚酰亚胺液自第一位置流到第二位置的示意图。
 本发明的最佳实施方式
以下各实施例的说明是参考附加的图式，用以例示本发明可用以实施的特定实施例。本发明所提到的方向用语，例如「上」、「下」、「前」、「后」、「左」、「右」、「内」、「外」、「侧面」等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本发明，而非用以限制本发明。
本发明为解决习用取向膜厚度不均或施加聚酰亚胺液时可能造成聚酰亚胺液流至封胶框的问题，参考图2，其显示依据本发明的一实施例所构建的一基板20。所述基板可为一数组基板或一彩膜基板。在此较佳实施例，所述基板20为一数组基板。所述陈列基板20具有一有源区域(Active Area)30(或称显示区域(Display Area))和一非有源区域(Non-Active Area) 32(或称非显示区域(Non-Display Area)环绕该有源区域30。所述数组基板20为长方形，具有一长方形玻璃基片22、一长方形封胶框24位在所述玻璃基片22的顶面并接近其边缘，和一长方形取向膜挡墙26位所述玻璃基片22顶面并介于所述封胶框24和所述有源区域30。所述封胶框24是用来和一彩膜基板紧密结合以防止一液晶层中的液晶分子从所述数组基板和彩膜基板间流出。所述挡墙26可由聚苯乙烯(Polystyrene (PS))所制。成所述挡墙26具有四片墙262、264、266、268分别连接在所述挡墙26的四个角落。每一片墙由顶视图来看具有一波浪的形状。四个十字形聚酰亚胺液注入位置记号28系形成在所述玻璃基片22的顶面并分别位在所述挡墙26的四个角落上。所述档墙26的四个角落的每一者是可有一隙缝269来有效防止当施加聚酰亚胺液时，聚酰亚胺液朝所述有源区域30的逆流扩散。所述隙缝269的尺寸系控制来使聚酰亚胺液不会流至所述封胶框。在此为习为此技可知悉的是，所隙缝可以省略，如此所述挡墙的四个角落为密封的。
参考图3,显示所述挡墙26在一角落的部分放大示意图。在此可以看出每一墙264(266)系有一向所述有源区域30突出的凸部270和一相对所述有源区域30为凹陷的凹部272。所述注入位置记号28系位在所述挡墙26角落的二相邻凸部270之间。在注入聚酰亚胺液时，第一滴聚酰亚胺液为滴在所述注入位置记号28上。
参考图4，显示取向膜挡墙26的一墙264的一部分放大示意图。所述凸部270间系相邻有一固定的距离。在第一滴聚酰亚胺液滴在所述注入位置记号28上后, 注入头(图中未示)即移动来分别在每个凸部前方注入相对的一滴聚酰亚胺液280。
参考图5，所述一滴聚酰亚胺液会沿着所述墙264的凸部表面流动入一相关的凹部272内。在此因所述取向膜挡墙26为波浪状的设计，所述聚酰亚胺液朝所述取向膜挡墙26的流动会顺着所述凸部和凹部间的弧状边缘来流动动，缓冲所述聚酰亚胺液和取向膜挡墙26间作用的力量,使所述聚酰亚胺液不能越过所述取向膜挡墙26，从而实现控制所述聚酰亚胺液涂覆的边界。
藉由本发明的波浪状取向膜挡墙26和将聚酰亚胺液滴在取向膜挡墙26凸部前方的设计，本发明可有效避免聚酰亚胺液外流而污染封胶框进而使封胶框剥离的风险。再者，因为聚酰亚胺液可平顺地沿着取向膜挡墙26流动，取向膜挡墙26不会对聚酰亚胺液的流动产生一强大的反作用力，聚酰亚胺液回流堆积在取向膜挡墙附近而造成取向膜有一不均匀的厚度，及因此所导致的间隙斑点，其在本发明中亦可被避免。如此，依本发明所制造的液晶显示器，其产品生产良率是可被有效的提高。
综上所述，虽然本发明已以优选实施例揭露如上，但上述优选实施例并非用以限制本发明，本领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。

Claims (20)

  1. 一种液晶显示器，包括：
    一基板界定有一有源区域和一非有源区域环绕所述有源区域；
    一封胶框位在所述非有源区域上，用来和另一基板相连接以密封在所述基板和所述另一基板间的液晶层；
    一四方形取向膜挡墙位在述非有源区域上介于所述封胶框和所述有源区域之间；及
    一取向膜位在所述基板的所述有源区域上且向外延伸至所述取向膜挡墙处；
    其中，所述取向模挡墙具有四片墙，每片墙均为波浪状结构。
  2. 如权利要求1所述的液晶显示器，其中所述取向膜为由聚酰亚胺液所制成，及所述取向膜挡墙为由聚苯乙烯所制成。
  3. 如权利要求2所述的液晶显示器，其中所述基板在一片墙和另外一片墙交接的角落处形成有一聚酰亚胺液注入位置记号。
  4. 如权利要求3所述的液晶显示器，其中所述聚酰亚胺液注入位置记号为位在所述波浪状结构的二个相邻凸部之间。
  5. 如权利要求4所述的液晶显示器，其中所述基板为数组基板和彩膜基板中之至少一者。
  6. 如权利要求1所述的液晶显示器，其中所述四片墙的每二片相邻的墙在交接处有一微小细缝。
  7. 如权利要求1所述的液晶显示器，其中所述四片墙的每二片相邻的墙在交接处为密封接合。
  8. 一种液晶显示器，包括：
    一基板界定有一有源区域和一非有源区域环绕所述有源区域；
    一封胶框位在所述非有源区域上；
    一取向膜挡墙位在述非有源区域上介于所述封胶框和所述有源区域之间；及
    一取向膜位在所述基板的所述有源区域上且向外延伸至所述取向膜挡墙处；
    其中，所述取向模挡墙为波浪状结构。
  9. 如权利要求8所述的液晶显示器，其中所述取向膜为由聚酰亚胺液所制成，及所述取向膜挡墙为由聚苯乙烯所制成。
  10. 如权利要求9所述的液晶显示器，其中所述取向膜挡墙为一四方形轮廓具有四片墙，所述四片墙的每二片墙在交接处有一细缝。
  11. 如权利要求10所述的液晶显示器，其中所述基板在一片墙和另外一片墙交接的角落处形成有一聚酰亚胺液注入位置记号。
  12. 如权利要求11所述的液晶显示器，其中所述聚酰亚胺液注入位置记号为位在所述波浪状结构的二个相邻凸部之间。
  13. 如权利要求12所述的液晶显示器，其中所述基板为数组基板和彩膜基板中之至少一者。
  14. 一种制造一液晶显示器的方法，包括：
    提供一基板具有一有源区域和一非有源区域环绕所述有源区域；
    形成一封胶框在所述非有源区域上；
    形成一取向膜挡墙位在所述非有源区域上介于所述封胶框和所述有源区域之间，其中所述取向膜挡墙有一波浪状结构；及
    注入形成取向膜的液态材料于取向膜挡墙中以形成取向膜在所述有源区域上及延伸至所述取向膜挡墙处。
  15. 如权利要求14所述的方法，其中所述形成取向膜的液态材料为聚酰亚胺液。
  16. 如权利要求15所述的法方，其中所述取向膜挡墙为四方形轮廓具有四片墙，所述取向膜挡墙在四片墙交接的角落处形成有聚酰亚胺液注入位置记号, 每一注入记号为在所述波浪状结构的二相邻凸部之间，当注入所述聚酰亚胺液时，先在些注入标记处注入所述聚酰亚胺液。
  17. 如权利要求16所述的方法，其中在注入标记处注入所述聚酰亚胺液后，再于所述波浪状结构邻近所述注入标记之凸部之前方处注入所述聚酰亚胺液。
  18. 如权利要求17所述的方法，其中所注入的聚酰亚胺液会沿着所述波浪状结构的边缘来流入所述波浪状结构的凹部中。
  19. 如权利要求18所述的方法，其中所述四片墙的每二片相邻的墙在交接处有一微小细缝。
  20. 如权利要求18所述的方法，其中所述四片墙的每二片相邻的墙在交接处为密封接合。
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