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WO2013174042A1 - 液晶显示面板的制作方法 - Google Patents

液晶显示面板的制作方法 Download PDF

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Publication number
WO2013174042A1
WO2013174042A1 PCT/CN2012/076623 CN2012076623W WO2013174042A1 WO 2013174042 A1 WO2013174042 A1 WO 2013174042A1 CN 2012076623 W CN2012076623 W CN 2012076623W WO 2013174042 A1 WO2013174042 A1 WO 2013174042A1
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WIPO (PCT)
Prior art keywords
liquid crystal
black matrix
display panel
crystal display
fabricating
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PCT/CN2012/076623
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English (en)
French (fr)
Inventor
王俊
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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 US13/581,475 priority Critical patent/US9348180B2/en
Publication of WO2013174042A1 publication Critical patent/WO2013174042A1/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
    • 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
    • G02F1/133—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
    • G02F1/1335—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

Definitions

  • the invention relates to the field of panel manufacturing, in particular to a method for fabricating a polymer-stabilized alignment liquid crystal display panel with high light transmittance.
  • liquid crystal displays liquid crystal Display, LCD
  • LCD liquid crystal Display
  • FIG. 1 is a cross-sectional view of a prior art liquid crystal display panel using MVA design.
  • the liquid crystal display panel includes an upper substrate 11 (generally a color film substrate), a liquid crystal molecular layer 12, and a lower substrate 13 (generally an array substrate).
  • the liquid crystal molecular layer 12 is formed between the upper substrate 11 and the lower substrate 13, and the liquid crystal A common electrode 14 is disposed between the molecular layer 12 and the upper substrate 11, a pixel electrode 15 is disposed between the liquid crystal molecular layer 12 and the lower substrate 13, and bumps 16 for alignment control are formed on the common electrode 14 and the pixel electrode 15 (also It may be a notch), and the liquid crystal molecules are slightly inclined along the shape of the bumps 16 without applying a voltage.
  • the liquid crystal molecules are rapidly tilted from the slightly inclined state toward the predetermined direction by the electric field, thereby greatly shortening the screen reaction time and achieving the effect of widening the viewing angle.
  • the design of the bumps 16 or the openings increases the manufacturing cost, and the bumps 16 formed on the upper substrate 11 and the lower substrate 13 often block part of the light, thereby reducing the aperture ratio of the pixels and further reducing the screen of the liquid crystal display device. brightness.
  • FIG. 2 is a cross-sectional view of a prior art liquid crystal display panel using a PSA design.
  • the liquid crystal display panel also includes an upper substrate 21, a liquid crystal molecular layer 22, and a lower substrate 23.
  • the liquid crystal molecular layer 22 is formed between the upper substrate 21 and the lower substrate 23, and a common layer is disposed between the liquid crystal molecular layer 22 and the upper substrate 21.
  • a pixel electrode 25 is disposed between the liquid crystal molecular layer 22 and the lower substrate 23 of the electrode 24.
  • a monomer for polymer alignment is added to the liquid crystal molecule layer 22, and the pixel electrode 25 can be designed in a predetermined shape.
  • an electric field is applied between the pixel electrode 25 and the common electrode 24 to cause corresponding deflection of the liquid crystal molecules in the liquid crystal molecular layer 22; due to the shape of the pixel electrode 25, the liquid crystal molecules are respectively separated.
  • the deflection is directed toward different azimuth angles, and the monomers in the liquid crystal molecule layer 22 are also aligned with the alignment direction of the liquid crystal molecules.
  • the monomer is then polymerized into a polymer 26 by means of an energy light (which may be visible or ultraviolet light) or by thermal polymerization, and is formed obliquely in the liquid crystal display panel.
  • the polymer 26 can have a pretilt angle of the liquid crystal molecules, that is, when the liquid crystal molecules are not driven by the electric field, they are affected by the polymer 26, and are arranged obliquely to realize liquid crystal.
  • the optical alignment of the molecules can be quickly deflected to an appropriate orientation, thereby shortening the reaction time of the liquid crystal display panel. Therefore, the PSA designed liquid crystal display panel can be provided with no bumps or openings, which can avoid the defects of the MVA designed liquid crystal display panel.
  • the multi-partition optical alignment of the liquid crystal display panel designed by the PSA is mainly realized by designing the shape of the pixel electrode, that is, the shape of the different pixel electrodes corresponds to the tilt angle of different liquid crystal molecules.
  • the fabrication of the pixel electrode is required to be high, and as the size of the liquid crystal display panel increases, the design structure is relatively simple, and the problem of the large-view character bias cannot be solved.
  • An object of the present invention is to provide a method for fabricating a liquid crystal display panel, which comprises a color filter substrate (ie, a CF substrate, Color). Filter) on BM (Black A matrix, a black matrix layer, applies a voltage to liquid crystal molecules in the liquid crystal molecule layer to form a pretilt angle.
  • the optical alignment process of the manufacturing method does not require the shape of the pixel electrode, and the multi-partition optical alignment can be performed, which solves the technical problem of the large-view character bias caused by the simple partition structure of the existing liquid crystal display panel.
  • the invention relates to a method for fabricating a liquid crystal display panel, which comprises the steps of:
  • the color film substrate and the corresponding array substrate are attached to a liquid crystal cell, and a liquid crystal molecule in the liquid crystal cell is formed into a pretilt angle by applying a voltage to the black matrix layer;
  • the black matrix layer includes a horizontal black matrix and a vertical black matrix which are vertically interlaced with each other, and an insulating layer disposed between the horizontal black matrix and the vertical black matrix;
  • a second voltage is applied to the vertical black matrix by applying a first voltage to the horizontal black matrix to form a liquid crystal molecule in the liquid crystal cell to form a pretilt angle.
  • the step A is specifically: sequentially forming the vertical black matrix, the insulating layer, and the horizontal black matrix on the color film substrate.
  • the first voltage includes at least two sub-voltages, and the at least two sub-voltages are respectively applied to different portions of the horizontal black matrix.
  • the second voltage includes at least two sub-voltages, and the at least two sub-voltages are respectively applied to different portions of the wales of the matrix.
  • the step B further includes the following steps:
  • the step C is: performing light alignment of the liquid crystal molecules having a portion of the pretilt angle formed by ultraviolet light through the photomask.
  • the direction of light alignment of different sections of the liquid crystal display panel is determined according to the shape of the opening of the mask and the voltage.
  • the invention relates to a method for fabricating a liquid crystal display panel, comprising the steps of: A, forming a black matrix layer on a color film substrate; and B, attaching the color film substrate and the corresponding array substrate to a liquid crystal cell, A voltage is applied to the black matrix layer to form a liquid crystal molecule in the liquid crystal cell to form a pretilt angle.
  • the black matrix layer includes a horizontal black matrix and a vertical black matrix which are vertically interlaced with each other.
  • the black matrix layer further includes an insulating layer disposed between the horizontal black matrix and the vertical black matrix.
  • the step A is specifically: sequentially forming the vertical black matrix, the insulating layer, and the horizontal black matrix on the color film substrate.
  • a second voltage is applied to the vertical black matrix by applying a first voltage to the horizontal black matrix, so that liquid crystal molecules in the liquid crystal cell form a pretilt angle.
  • the first voltage includes at least two sub-voltages, and the at least two sub-voltages are respectively applied to different portions of the horizontal black matrix.
  • the second voltage includes at least two sub-voltages, and the at least two sub-voltages are respectively applied to different portions of the wales of the matrix.
  • the step B further comprises the step of: C. optically aligning the liquid crystal molecules having formed a pretilt angle using ultraviolet light.
  • the step C is: performing light alignment of the liquid crystal molecules having a portion of the pretilt angle formed by ultraviolet light through the photomask.
  • the direction of light alignment of different sections of the liquid crystal display panel is determined according to the shape of the opening of the mask and the voltage.
  • the method for fabricating the liquid crystal display panel of the present invention passes through a BM (Black) on a color filter substrate (ie, a CF substrate, a color filter).
  • a matrix, a black matrix layer applies a voltage to liquid crystal molecules in the liquid crystal molecule layer to form a pretilt angle.
  • the optical alignment process of the manufacturing method does not require the shape of the pixel electrode, and the multi-partition optical alignment can be performed, which solves the technical problem of the large-view character bias caused by the simple partition structure of the existing liquid crystal display panel.
  • FIG. 1 is a cross-sectional view of a prior art liquid crystal display panel using an MVA design
  • FIG. 2 is a cross-sectional view of a prior art liquid crystal display panel using a PSA design
  • FIG. 3 is a flow chart of a preferred embodiment of a method of fabricating a liquid crystal display panel of the present invention
  • FIG. 4 is a schematic view showing the fabrication of a liquid crystal display panel using the present invention.
  • Figure 5 is a top plan view of a black matrix layer.
  • FIG. 3 is a flow chart of a preferred embodiment of a method for fabricating a liquid crystal display panel of the present invention.
  • the manufacturing method of the liquid crystal display panel of the present invention comprises:
  • Step 301 forming a black matrix layer on the color filter substrate
  • Step 302 attaching the color filter substrate and the corresponding array substrate to the liquid crystal cell, and applying a voltage to the black matrix layer to form a pretilt angle of the liquid crystal molecules in the liquid crystal cell;
  • Step 303 performing optical alignment on the liquid crystal molecules having formed the pretilt angle by using ultraviolet light
  • step 303 ends in step 303.
  • FIGS. 4 and 5 are schematic views showing the fabrication of a liquid crystal display panel according to the present invention
  • FIG. 5 is a plan view of a black matrix layer.
  • the liquid crystal display panel of FIG. 4 includes a color filter substrate 41, a liquid crystal molecular layer 42 and an array substrate 43.
  • the liquid crystal molecular layer 42 is formed between the color filter substrate 41 and the array substrate 43, and the liquid crystal molecular layer 42 and the color filter substrate 41 are A common electrode 44 is disposed therebetween.
  • a pixel electrode 45 is disposed between the liquid crystal molecular layer 42 and the array substrate 43, and a black matrix layer 46 is disposed between the color filter substrate 41 and the common electrode 44.
  • a black matrix layer 46 is formed on the color filter substrate 41.
  • the black matrix layer 46 herein includes a horizontal black matrix 461, a vertical black matrix 462, and an insulating layer 463 disposed between the horizontal black matrix 461 and the vertical black matrix 462.
  • the horizontal black matrix 461 and the vertical black matrix 462 are vertically interlaced as shown in FIG. This step specifically includes:
  • Step 3011 applying a layer of black material on the color film substrate 41 (the black material layer is made of a conductive material), and then exposing the black material layer using a corresponding mask, and then performing steps of development, cleaning, and curing.
  • a vertical black matrix 462 is formed on the surface of the color filter substrate 41;
  • Step 3012 depositing an insulating layer 463 on the color film substrate 41 on which the vertical black matrix 462 has been formed, and planarizing the surface of the insulating layer 463;
  • Step 3013 applying a layer of black material on the color filter substrate 41 on which the insulating layer 463 has been formed, and then exposing the black material layer using a corresponding mask, and then performing steps of developing, cleaning, and curing, etc., insulating
  • the surface of the layer 463 is formed with a horizontal black matrix 461 which is vertically interlaced with the above-described vertical black matrix 462.
  • the vertical black matrix 462, the insulating layer 463, and the horizontal black matrix 461 on the color filter substrate 41 constitute a black matrix layer 46.
  • step 301 This completes step 301.
  • step 302 the step specifically includes:
  • Step 3021 the color film substrate 41 on which the black matrix layer 46 has been formed is attached to the corresponding array substrate 43 into a liquid crystal cell, as shown in FIG. 4, wherein the array substrate 43 is provided with a pixel electrode 45, and a black matrix layer has been formed.
  • a common electrode 44 is disposed on the color filter substrate 41 of the 46, and a red, green, and blue resist layer (not shown) and an insulating layer 47 are disposed between the common electrode 44 and the black matrix layer 46, and the color filter substrate 41 is common.
  • the electrode 44 is bonded to the pixel electrode 45 of the array substrate 43 and then filled with liquid crystal between the common electrode 44 and the pixel electrode 45;
  • Step 3022 by applying a voltage to the black matrix layer 46, the liquid crystal molecules within the liquid crystal cell form a pretilt angle.
  • the black matrix layer 46 includes the horizontal black matrix 461 and the vertical black matrix 462, the voltage of each of the horizontal black matrix 461 and each of the vertical black matrixes 462 can be individually controlled by a device such as a control chip.
  • the liquid crystal molecules affected by the horizontal black matrix 461 and the vertical black matrix 462 produce different pretilt angles.
  • a voltage V1 (first voltage) may be applied to the horizontal black matrix 461 while a voltage V2 (second voltage) is applied to the vertical black matrix 462, wherein the first voltage is not equal to the second voltage;
  • the matrix 461 and the vertical black matrix 462 respectively apply two kinds of sub-voltages, such as applying a voltage V3 (third voltage) to a part of the horizontal black matrix 461, and applying a voltage V4 (fourth voltage) to the other part of the horizontal black matrix 461, for a part of the vertical black
  • the matrix 462 applies a voltage V5 (fifth voltage), and another portion of the vertical black matrix 462 applies a voltage V6 (sixth voltage), wherein the third voltage is not equal to the fourth voltage, and the fifth voltage is not equal to the sixth voltage;
  • the black matrix 461 applies two or more sub-voltages (of course, different sub-voltages are respectively applied to different horizontal black matrixes 461), and the vertical black matrix 462 is similar.
  • step 303 specifically includes:
  • the liquid crystal molecules having the pretilt angle formed are exposed by ultraviolet rays through the photomask 48, and the monomer doped in the liquid crystal molecules is polymerized into a high molecular polymer (not shown), and is obliquely formed on the pixel electrode 45 and The common electrode 44 is formed such that the corresponding liquid crystal molecules form a pretilt angle; and the liquid crystal molecules which are not exposed are restored to a free state after the voltage applied to the black matrix layer 46 is removed, and a pretilt angle is not formed.
  • the pretilt angle of the liquid crystal molecules in different sections of the liquid crystal display panel can be determined according to the aperture shape of the photomask 48, the voltage applied on the horizontal black matrix 461, and the voltage applied on the vertical black matrix 462, thereby determining the optical alignment of the different partitions.
  • the method for fabricating a liquid crystal display panel of the present invention forms a light alignment of different regions by applying a voltage to liquid crystal molecules in a liquid crystal molecular layer through a black matrix layer on the color filter substrate, without forming pixel electrodes of different patterns to form different
  • the light alignment of the partition increases the light transmittance of the liquid crystal display panel.
  • the multi-partition of any shape of the liquid crystal display panel and the pretilt angle of the liquid crystal molecules in each partition can be realized by the aperture shape of the mask, the voltage applied on the horizontal black matrix, and the voltage applied on the vertical black matrix.

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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)
  • Liquid Crystal (AREA)

Description

液晶显示面板的制作方法 技术领域
本发明涉及面板制作领域，特别是涉及一种高透光率的聚合物稳定配向的液晶显示面板的制作方法。
 背景技术
随着显示技术的进步，与传统的CRT显示器相比，液晶显示器（liquid crystal display，LCD）由于具有轻、薄、低辐射以及体积小而不占空间的优势，目前已经成为显示器市场的主力产品，同时大量的应用于计算器、个人数字助理、膝上型计算机、数字相机、移动电话等各式电子产品中。
现有的液晶显示面板往往采用MVA（Multi-domain vertical alignment，多重分域垂直配向）的设计或PSA（Polymer stabilized alignment，聚合物稳定配向）的设计。
采用MVA设计的液晶显示面板如图1所示，图1为现有技术的采用MVA设计的液晶显示面板的截面图。该液晶显示面板包括一上基板11（一般为彩膜基板）、一液晶分子层12以及一下基板13（一般为阵列基板），液晶分子层12形成于上基板11与下基板13之间，液晶分子层12与上基板11之间设置有一公共电极14，液晶分子层12与下基板13之间设置有一像素电极15，在公共电极14和像素电极15上形成配向控制用的凸块16（也可以是缺口），使液晶分子在未施加电压的情况下，沿着凸块16的形状，呈现稍微倾斜的状态。如此一来，当对像素电极15施加电压时，液晶分子在电场的作用下，会迅速的由稍微倾斜的状态朝预定的方向倾倒，从而大幅缩短屏幕反应时间，并达成增广视角的效果。但凸块16或开口的设计使得制造成本提高了很多，同时形成于上基板11和下基板13的凸块16常会遮蔽部分的光线，所以会减少像素的开口率，进而降低液晶显示装置的画面亮度。
采用PSA设计的液晶显示面板如图2所示，图2为现有技术的采用PSA设计的液晶显示面板的截面图。该液晶显示面板也包括一上基板21、一液晶分子层22以及一下基板23，液晶分子层22形成于上基板21与下基板23之间，液晶分子层22与上基板21之间设置有一公共电极24，液晶分子层22与下基板23之间设置有一像素电极25。但液晶分子层22中加入一种用于聚合物配向的单体，像素电极25可设计为预定的形状。在制作液晶显示面板的过程中，在像素电极25与公共电极24之间施加一个电场，使液晶分子层22中的液晶分子产生相应的偏转；由于像素电极25的形状的关系，液晶分子会分别朝向不同的方位角度偏转，同时液晶分子层22中的单体也会随着液晶分子的排列方向而排列。接着利用一能量光（可为可见光或紫外光）或热聚合的方式，使上述单体聚合成高分子聚合物26，并倾斜的形成于液晶显示面板中。
藉由此聚合物稳定配向技术，高分子聚合物26可使液晶分子具有一预倾角，也即液晶分子在未受电场驱动时，受到高分子聚合物26的影响，会倾斜的排列，实现液晶分子的光配向。这样，当液晶分子受到电场驱动时，液晶分子便可迅速地偏转到适当的方位，进而缩短液晶显示面板的反应时间。 因此PSA设计的液晶显示面板内可不设置凸块或开口，可以避免MVA设计的液晶显示面板的缺陷。
但目前PSA设计的液晶显示面板的多分区光配向主要是通过设计像素电极的形状来实现，即不同的像素电极的形状对应不同的液晶分子的倾斜角度。这样对像素电极的制作要求较高，并且随着液晶显示面板尺寸增加的趋势，这种设计结构较为单一，仍无法解决大视角色偏的问题。
故，有必要提供一种液晶显示面板的制作方法，以解决现有技术所存在的问题。
 技术问题
本发明的目的在于提供一种液晶显示面板的制作方法,本制作方法通过彩膜基板（即CF基板，Color filter）上的BM（Black matrix，黑色矩阵层）对液晶分子层中的液晶分子施加电压，以形成预倾角。这种制作方法的光配向过程对像素电极的形状没有要求，同时可以进行多分区的光配向，很好的解决了现有的液晶显示面板由于分区结构简单导致的大视角色偏的技术问题。
 技术解决方案
本发明涉及一种液晶显示面板的制作方法，其包括步骤：
A、在彩膜基板上制作黑色矩阵层；以及
B、将所述彩膜基板与相应的阵列基板贴合成液晶盒，通过对所述黑色矩阵层施加电压，使所述液晶盒内的液晶分子形成预倾角；
所述黑色矩阵层包括相互垂直交错的横行黑色矩阵以及纵行黑色矩阵，和设置在所述横行黑色矩阵和所述纵行黑色矩阵之间的绝缘层；
通过对所述横行黑色矩阵施加第一电压，对所述纵行黑色矩阵施加第二电压，使所述液晶盒内的液晶分子形成预倾角。
在本发明所述的液晶显示面板的制作方法中，所述步骤A具体为：在所述彩膜基板上依次形成所述纵行黑色矩阵、所述绝缘层以及所述横行黑色矩阵。
在本发明所述的液晶显示面板的制作方法中，所述第一电压包括至少两种子电压，所述至少两种子电压分别施加在不同部分的横行黑色矩阵上。
在本发明所述的液晶显示面板的制作方法中，所述第二电压包括至少两种子电压，所述至少两种子电压分别施加在不同部分的纵行黑色矩阵上。
在本发明所述的液晶显示面板的制作方法中，所述步骤B之后还包括步骤：
C、使用紫外光对已形成预倾角的所述液晶分子进行光配向。
在本发明所述的液晶显示面板的制作方法中，所述步骤C为：通过光罩使用紫外光对部分已形成预倾角的所述液晶分子进行光配向。
在本发明所述的液晶显示面板的制作方法中，根据所述光罩的开孔形状、所述电压确定所述液晶显示面板的不同分区的光配向的方向。
本发明涉及一种液晶显示面板的制作方法，其包括步骤：A、在彩膜基板上制作黑色矩阵层；以及B、将所述彩膜基板与相应的阵列基板贴合成液晶盒，通过对所述黑色矩阵层施加电压，使所述液晶盒内的液晶分子形成预倾角。
在本发明所述的液晶显示面板的制作方法中，所述黑色矩阵层包括相互垂直交错的横行黑色矩阵以及纵行黑色矩阵。
在本发明所述的液晶显示面板的制作方法中，所述黑色矩阵层还包括设置在所述横行黑色矩阵和所述纵行黑色矩阵之间的绝缘层。
在本发明所述的液晶显示面板的制作方法中，所述步骤A具体为：在所述彩膜基板上依次形成所述纵行黑色矩阵、所述绝缘层以及所述横行黑色矩阵。
在本发明所述的液晶显示面板的制作方法中，通过对所述横行黑色矩阵施加第一电压，对所述纵行黑色矩阵施加第二电压，使所述液晶盒内的液晶分子形成预倾角。
在本发明所述的液晶显示面板的制作方法中，所述第一电压包括至少两种子电压，所述至少两种子电压分别施加在不同部分的横行黑色矩阵上。
在本发明所述的液晶显示面板的制作方法中，所述第二电压包括至少两种子电压，所述至少两种子电压分别施加在不同部分的纵行黑色矩阵上。
在本发明所述的液晶显示面板的制作方法中，所述步骤B之后还包括步骤：C、使用紫外光对已形成预倾角的所述液晶分子进行光配向。
在本发明所述的液晶显示面板的制作方法中，所述步骤C为：通过光罩使用紫外光对部分已形成预倾角的所述液晶分子进行光配向。
在本发明所述的液晶显示面板的制作方法中，根据所述光罩的开孔形状、所述电压确定所述液晶显示面板的不同分区的光配向的方向。
 有益效果
相较于现有的液晶显示面板的制作方法，本发明的液晶显示面板的制作方法通过彩膜基板（即CF基板，Color filter）上的BM（Black matrix，黑色矩阵层）对液晶分子层中的液晶分子施加电压，以形成预倾角。这种制作方法的光配向过程对像素电极的形状没有要求，同时可以进行多分区的光配向，很好的解决了现有的液晶显示面板由于分区结构简单导致的大视角色偏的技术问题。
 附图说明
图1为现有技术的采用MVA设计的液晶显示面板的截面图；
图2为现有技术的采用PSA设计的液晶显示面板的截面图；
图3为本发明的液晶显示面板的制作方法的优选实施例的流程图；
图4为采用本发明的液晶显示面板的制作方法的制作示意图；
图5为黑色矩阵层的俯视图。
其中，附图标记说明如下：
41、彩膜基板；
42、液晶分子层；
43、阵列基板；
44、公共电极；
45、像素电极；
46、黑色矩阵层；
461、横行黑色矩阵；
462、纵行黑色矩阵；
463、47、绝缘层；
48、光罩。
 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。
在图中，结构相似的单元是以相同标号表示。
请参照图3，图3为本发明的液晶显示面板的制作方法的优选实施例的流程图。本发明的液晶显示面板的制作方法包括：
步骤301、在彩膜基板上制作黑色矩阵层；
步骤302、将彩膜基板与相应的阵列基板贴合成液晶盒，通过对黑色矩阵层施加电压，使液晶盒内的液晶分子形成预倾角；以及
步骤303、使用紫外光对已形成预倾角的液晶分子进行光配向；
该方法结束于步骤303。
下面结合图4和图5详细说明本发明的液晶显示面板的制作方法。图4为采用本发明的液晶显示面板的制作方法的制作示意图，图5为黑色矩阵层的俯视图。
其中图4中的液晶显示面板包括彩膜基板41、液晶分子层42以及阵列基板43，液晶分子层42形成于彩膜基板41与阵列基板43之间，液晶分子层42与彩膜基板41之间设置有一公共电极44，液晶分子层42与阵列基板43之间设置有一像素电极45，黑色矩阵层46设置在彩膜基板41和公共电极44之间。
在步骤301中，在彩膜基板41上制作黑色矩阵层46。这里的黑色矩阵层46包括横行黑色矩阵461、纵行黑色矩阵462以及设置在横行黑色矩阵461和纵行黑色矩阵462之间的绝缘层463。横行黑色矩阵461与纵行黑色矩阵462相互垂直交错，如图5所示。该步骤具体包括：
步骤3011，在彩膜基板41上涂覆一层黑色材料层（该黑色材料层由导电材料构成），然后使用相应的光罩对该黑色材料层进行曝光，再经过显影、清洗以及固化等步骤，在彩膜基板41的表面形成纵行黑色矩阵462；
步骤3012，在已形成了纵行黑色矩阵462的彩膜基板41上沉积绝缘层463，并使绝缘层463的表面平坦化；
步骤3013，在已形成了绝缘层463的彩膜基板41上涂覆一层黑色材料层，然后使用相应的光罩对该黑色材料层进行曝光，再经过显影、清洗以及固化等步骤，在绝缘层463的表面形成与上述的纵行黑色矩阵462相互垂直交错的横行黑色矩阵461。彩膜基板41上的纵行黑色矩阵462、绝缘层463以及横行黑色矩阵461组成了黑色矩阵层46。
这样即完成了步骤301。
随后来到步骤302，该步骤具体包括：
步骤3021，将已形成了黑色矩阵层46的彩膜基板41与相应的阵列基板43贴合成液晶盒，如图4所示，其中阵列基板43上设置有像素电极45，已形成了黑色矩阵层46的彩膜基板41上设置有公共电极44，公共电极44与黑色矩阵层46之间还设置有红绿蓝色阻层（图中未示出）以及绝缘层47，彩膜基板41的公共电极44面向阵列基板43的像素电极45进行贴合，然后在公共电极44和像素电极45之间填充液晶；
步骤3022，通过对黑色矩阵层46施加电压使得液晶盒内的液晶分子形成预倾角。由于该黑色矩阵层46包括横行黑色矩阵461和纵行黑色矩阵462，因此可以通过控制芯片等装置分别控制每个横行黑色矩阵461和每个纵行黑色矩阵462的电压。通过对横行黑色矩阵461和纵行黑色矩阵462施加不同的电压值，使得横行黑色矩阵461和纵行黑色矩阵462所影响的液晶分子产生不同的预倾角。例如，可以对横行黑色矩阵461均施加电压V1（第一电压），同时对纵行黑色矩阵462均施加电压V2（第二电压），其中第一电压不等于第二电压；也可对横行黑色矩阵461和纵行黑色矩阵462分别施加两种子电压，如对一部分横行黑色矩阵461施加电压V3（第三电压），另一部分横行黑色矩阵461施加电压V4（第四电压），对一部分纵行黑色矩阵462施加电压V5（第五电压），另一部分纵行黑色矩阵462施加电压V6（第六电压），其中第三电压不等于第四电压，第五电压不等于第六电压；还可对横行黑色矩阵461施加两种以上的子电压（当然不同的子电压分别施加在不同的横行黑色矩阵461上），纵行黑色矩阵462同理。因此如何对横行黑色矩阵461和纵行黑色矩阵462施加电压和施加多大的电压并不限制本发明的保护范围，只要通过横行黑色矩阵461和纵行黑色矩阵462施加电压控制液晶分子形成预倾角即属于本发明的保护范围。
随后来到步骤303，该步骤具体包括：
通过光罩48使用紫外线对已形成预倾角的液晶分子进行曝光，使掺杂在液晶分子中的单体聚合成为高分子聚合物（图中未示出），并倾斜的形成于像素电极45和公共电极44上，从而使相应的液晶分子形成预倾角；而没有被曝光部分的液晶分子，在撤去施加在黑色矩阵层46上的电压后，恢复到自由状态，并没有形成预倾角。这样可以根据光罩48的开孔形状、横行黑色矩阵461上施加的电压以及纵行黑色矩阵462上施加的电压确定液晶显示面板不同分区的液晶分子的预倾角，从而确定不同分区的光配向。
因此，本发明的液晶显示面板的制作方法通过彩膜基板上的黑色矩阵层对液晶分子层中的液晶分子施加电压来形成不同分区的光配向，而不需要制作不同图案的像素电极来形成不同分区的光配向，可增大液晶显示面板的光透过率。同时可以通过光罩的开孔形状、横行黑色矩阵上施加的电压以及纵行黑色矩阵上施加的电压实现液晶显示面板的任意形状的多分区以及每个分区中液晶分子任意角度的预倾角，很好的解决了大视角色偏的问题。
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。
 本发明的实施方式
工业实用性
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Claims (19)

  1. 一种液晶显示面板的制作方法，其包括步骤：
    A、在彩膜基板上制作黑色矩阵层；以及
    B、将所述彩膜基板与相应的阵列基板贴合成液晶盒，通过对所述黑色矩阵层施加电压，使所述液晶盒内的液晶分子形成预倾角；
    所述黑色矩阵层包括相互垂直交错的横行黑色矩阵以及纵行黑色矩阵，和设置在所述横行黑色矩阵和所述纵行黑色矩阵之间的绝缘层；
    通过对所述横行黑色矩阵施加第一电压，对所述纵行黑色矩阵施加第二电压，使所述液晶盒内的液晶分子形成预倾角。
  2. 根据权利要求1所述的液晶显示面板的制作方法，其中所述步骤A具体为：在所述彩膜基板上依次形成所述纵行黑色矩阵、所述绝缘层以及所述横行黑色矩阵。
  3. 根据权利要求1所述的液晶显示面板的制作方法，其中所述第一电压包括至少两种子电压，所述至少两种子电压分别施加在不同部分的横行黑色矩阵上。
  4. 根据权利要求1所述的液晶显示面板的制作方法，其中所述第二电压包括至少两种子电压，所述至少两种子电压分别施加在不同部分的纵行黑色矩阵上。
  5. 根据权利要求3所述的液晶显示面板的制作方法，其中所述第二电压包括至少两种子电压，所述至少两种子电压分别施加在不同部分的纵行黑色矩阵上。
  6. 根据权利要求1所述的液晶显示面板的制作方法，其中所述步骤B之后还包括步骤：
    C、使用紫外光对已形成预倾角的所述液晶分子进行光配向。
  7. 根据权利要求6所述的液晶显示面板的制作方法，其中
    所述步骤C为：通过光罩使用紫外光对部分已形成预倾角的所述液晶分子进行光配向。
  8. 根据权利要求7所述的液晶显示面板的制作方法，其中根据所述光罩的开孔形状、所述电压确定所述液晶显示面板的不同分区的光配向的方向。
  9. 一种液晶显示面板的制作方法，其包括步骤：
    A、在彩膜基板上制作黑色矩阵层；以及
    B、将所述彩膜基板与相应的阵列基板贴合成液晶盒，通过对所述黑色矩阵层施加电压，使所述液晶盒内的液晶分子形成预倾角。
  10. 根据权利要求9所述的液晶显示面板的制作方法，其中所述黑色矩阵层包括相互垂直交错的横行黑色矩阵以及纵行黑色矩阵。
  11. 根据权利要求10所述的液晶显示面板的制作方法，其中所述黑色矩阵层还包括设置在所述横行黑色矩阵和所述纵行黑色矩阵之间的绝缘层。
  12. 根据权利要求11所述的液晶显示面板的制作方法，其中
    所述步骤A具体为：在所述彩膜基板上依次形成所述纵行黑色矩阵、所述绝缘层以及所述横行黑色矩阵。
  13. 根据权利要求10所述的液晶显示面板的制作方法，其中通过对所述横行黑色矩阵施加第一电压，对所述纵行黑色矩阵施加第二电压，使所述液晶盒内的液晶分子形成预倾角。
  14. 根据权利要求13所述的液晶显示面板的制作方法，其中所述第一电压包括至少两种子电压，所述至少两种子电压分别施加在不同部分的横行黑色矩阵上。
  15. 根据权利要求13所述的液晶显示面板的制作方法，其中所述第二电压包括至少两种子电压，所述至少两种子电压分别施加在不同部分的纵行黑色矩阵上。
  16. 根据权利要求14所述的液晶显示面板的制作方法，其中所述第二电压包括至少两种子电压，所述至少两种子电压分别施加在不同部分的纵行黑色矩阵上。
  17. 根据权利要求9所述的液晶显示面板的制作方法，其中所述步骤B之后还包括步骤：
    C、使用紫外光对已形成预倾角的所述液晶分子进行光配向。
  18. 根据权利要求17所述的液晶显示面板的制作方法，其中
    所述步骤C为：通过光罩使用紫外光对部分已形成预倾角的所述液晶分子进行光配向。
  19. 根据权利要求18所述的液晶显示面板的制作方法，其中根据所述光罩的开孔形状、所述电压确定所述液晶显示面板的不同分区的光配向的方向。
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