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WO2017035911A1 - Boa型液晶面板 - Google Patents

Boa型液晶面板 Download PDF

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Publication number
WO2017035911A1
WO2017035911A1 PCT/CN2015/091725 CN2015091725W WO2017035911A1 WO 2017035911 A1 WO2017035911 A1 WO 2017035911A1 CN 2015091725 W CN2015091725 W CN 2015091725W WO 2017035911 A1 WO2017035911 A1 WO 2017035911A1
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WIPO (PCT)
Prior art keywords
liquid crystal
crystal panel
substrate
line
black matrix
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PCT/CN2015/091725
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English (en)
French (fr)
Inventor
叶成亮
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深圳市华星光电技术有限公司
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Priority to US14/888,440 priority Critical patent/US9874796B2/en
Publication of WO2017035911A1 publication Critical patent/WO2017035911A1/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
    • G02F1/136—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
    • G02F1/136209—Light shielding layers, e.g. black matrix, incorporated in the active matrix substrate, e.g. structurally associated with the switching element
    • 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
    • G02F1/1343—Electrodes
    • G02F1/13439—Electrodes characterised by their electrical, optical, physical properties; materials therefor; method of making
    • H01L27/124—
    • H01L29/78633—
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/136222—Colour filters incorporated in the active matrix substrate

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a BOA type liquid crystal panel.
  • Liquid crystal display has many advantages such as thin body, power saving, no radiation, etc., and has been widely used, such as: LCD TV, mobile phone, personal digital assistant (PDA), digital camera, computer screen Or a laptop screen, etc.
  • a liquid crystal display device includes a housing, a liquid crystal panel disposed in the housing, and a backlight module disposed in the housing.
  • the liquid crystal panel is mainly composed of a thin film transistor array substrate (Thin Film Transistor Array Substrate, TFT Array Substrate), a color filter substrate (CF Substrate), and a liquid crystal layer disposed between the two substrates.
  • the working principle is to apply a driving force on two glass substrates.
  • the voltage controls the rotation of the liquid crystal molecules of the liquid crystal layer, and refracts the light of the backlight module to produce a picture.
  • FIG. 1 to 2 are schematic views of a conventional liquid crystal panel including a CF substrate 100, a TFT substrate 200, and a liquid crystal layer 300 between the CF substrate 100 and the TFT substrate 200.
  • the CF substrate 100 includes a first substrate 110 and a color resist layer 120 and a black matrix (BM) 130 disposed on the first substrate 110.
  • the TFT substrate 200 includes a second substrate 210, a Shielding Line 220, and a Data Line 230. Under normal circumstances, the black matrix 130 may cover the gap between the light-shielding line 220 and the data line 230 to prevent light leakage.
  • the difference in the radius of curvature of the TFT substrate 200 and the CF substrate 100 causes a relative positional shift between the black matrix 130 on the CF substrate 100 and the film layer of the TFT substrate 200. This causes the curved liquid crystal panel to leak light and the like, and also loses a part of the aperture ratio.
  • a color filter is attached to the color filter on Array (COA) technology, that is, the RGB color resistance on the CF substrate side is transferred to the array substrate to be fabricated.
  • COA color filter on Array
  • the original CF substrate retains only the black matrix, the common electrode, and the spacer (Photo Spacer, PS).
  • FIG. 3 is a schematic cross-sectional view of a conventional COA type liquid crystal panel, wherein a color resist layer 250' is disposed on the lower substrate 200'.
  • the black matrix 130' in the upper substrate 100' completely covers between the data line 240' on the lower substrate 200' and the light-shielding line 220'.
  • the gap also covers a portion of the shading line 220'.
  • the black matrix 130' has a distance of 1-2 ⁇ m covering the light-shielding line 220' in the horizontal direction, and is specifically 1.35 ⁇ m in the COA type liquid crystal panel of FIG. 3, which can prevent the alignment of the upper and lower substrates 100' and 200'.
  • a black matrix is attached to the BM On Array (BOA) technology, that is, the black matrix is also fabricated on the array substrate.
  • the adverse effects such as light leakage and crosstalk caused by the bending of the panel facing the curved liquid crystal panel can be solved, and the aperture ratio of the liquid crystal panel can be ensured.
  • FIG. 5 is a schematic cross-sectional view of a conventional BOA type liquid crystal panel, wherein a color resist layer 250" and a black matrix 260" are disposed on the lower substrate 200", leaving only a common electrode in the upper substrate 100" 120".
  • the black matrix 260" completely covers the gap between the data line 240" and the light-shielding line 220", and since the alignment deviation of the exposure machine itself is at most 3 ⁇ m, the black matrix 260" should also cover at least the light-shielding line 220. A distance of 3 ⁇ m to prevent the machine-to-position deviation from causing a gap between the data line 240" and the light-shielding line 220" to be exposed.
  • the topographical fluctuation affects the risk of dark lines caused by liquid crystal tilting inside the pixel, and the distance between the black matrix 260" and the pixel electrode 270" is 3 ⁇ m, while the pixel electrode 270" is covered in the horizontal direction.
  • the distance of the shading line 220" is 2 ⁇ m.
  • the width of the shading line 220" is 8 ⁇ m, which saves the aperture ratio compared to the ordinary COA type liquid crystal panel.
  • the aperture ratio is affected to some extent, so it is necessary to provide a new type of BOA type liquid crystal panel to further improve the liquid crystal panel.
  • the aperture ratio since the width of the light-shielding line 220" in the BOA type liquid crystal panel shown in FIG. 5 is large, the aperture ratio is affected to some extent, so it is necessary to provide a new type of BOA type liquid crystal panel to further improve the liquid crystal panel. The aperture ratio.
  • An object of the present invention is to provide a BOA type liquid crystal panel, which can avoid the occurrence of light leakage when the liquid crystal panel is applied to a curved surface display, and has a high aperture ratio.
  • the present invention provides a BOA type liquid crystal panel including an upper substrate, a lower substrate disposed opposite to the upper substrate, and a liquid crystal layer between the upper substrate and the lower substrate;
  • the upper substrate includes a first substrate and a common electrode disposed on the first substrate;
  • the lower substrate includes a second substrate, a light shielding line, a data line, a color resist layer covering the data line, a black matrix disposed on the color resist layer, and a pixel electrode;
  • the color resist layer comprises a red color block, a green color block, and a blue color block arranged in sequence, and edges of adjacent two color blocks are superposed on each other, and the data lines are located at intersections of adjacent two color blocks
  • the data line is spaced apart from the shading line in a horizontal direction, and the black matrix completely covers a gap between the data line and the shading line and covers a part of the shading line.
  • the black matrix covers the light-shielding line in a horizontal direction at a distance of 1.5 ⁇ m.
  • the pixel electrode is spaced apart from the black matrix in a horizontal direction.
  • the distance between the black matrix and the pixel electrode in the horizontal direction is 3 ⁇ m.
  • the light shielding line is located at a gap between the black matrix and the pixel electrode in the horizontal direction.
  • the pixel electrode covers a portion of the light shielding line.
  • the distance at which the pixel electrode covers the shading line in the horizontal direction is 2 ⁇ m.
  • the light shielding line has a width of 6.5 ⁇ m.
  • the first substrate and the second substrate are glass substrates.
  • the material of the common electrode and the pixel electrode is ITO.
  • the present invention also provides a BOA type liquid crystal panel, comprising an upper substrate, a lower substrate disposed opposite the upper substrate, and a liquid crystal layer between the upper substrate and the lower substrate;
  • the upper substrate includes a first substrate and a common electrode disposed on the first substrate;
  • the lower substrate includes a second substrate, a light shielding line, a data line, a color resist layer covering the data line, a black matrix disposed on the color resist layer, and a pixel electrode;
  • the color resist layer comprises a red color block, a green color block, and a blue color block arranged in sequence, and edges of adjacent two color blocks are superposed on each other, and the data lines are located at intersections of adjacent two color blocks
  • the data line is spaced apart from the shading line in a horizontal direction, and the black matrix completely covers a gap between the data line and the shading line and covers a part of the shading line;
  • the distance of the black matrix covering the shading line in the horizontal direction is 1.5 ⁇ m
  • the pixel electrode is spaced apart from the black matrix in a horizontal direction
  • the pixel electrode covers a part of the shading line
  • the width of the shading line is 6.5 ⁇ m
  • first substrate and the second substrate are glass substrates
  • the material of the common electrode and the pixel electrode is ITO.
  • the beneficial effects of the present invention are as follows: in the BOA type liquid crystal panel of the present invention, the color resist layer and the black matrix are both disposed on the second substrate, and the edges of the adjacent two color blocking blocks in the color resist layer are superimposed on each other to have a light shielding effect, and On this basis, a layer of black matrix is covered to realize double-layer shielding, which effectively avoids the gap between the data line and the shading line when the BOA type liquid crystal panel is applied to the curved surface display.
  • the light leakage phenomenon shortens the width of the shading line, improves the aperture ratio of the BOA type liquid crystal panel, and reduces the cost of the backlight.
  • FIG. 1 is a schematic cross-sectional structural view of a conventional liquid crystal panel applied to a curved surface display
  • FIG. 2 is a partial cross-sectional structural view of the liquid crystal panel of FIG. 1 when applied to a curved surface display;
  • FIG. 3 is a schematic cross-sectional structural view of a conventional COA type liquid crystal panel
  • FIG. 4 is a schematic cross-sectional structural view of the COA liquid crystal panel of FIG. 3;
  • FIG. 5 is a schematic cross-sectional structural view of a conventional BOA type liquid crystal panel
  • Fig. 6 is a cross-sectional structural view showing a BOA type liquid crystal panel of the present invention.
  • the present invention provides a BOA type liquid crystal panel including an upper substrate 1 , a lower substrate 2 disposed opposite to the upper substrate 1 , and a liquid crystal layer between the upper substrate 1 and the lower substrate 2 ( Not shown).
  • the upper substrate 1 includes a first substrate 11 and a common electrode 12 disposed on the first substrate 11.
  • the lower substrate 2 includes a second substrate 21, a light shielding line 22, a data line 24, a color resist layer 25 covering the data line 24, a black matrix 26 disposed on the color resist layer 25, and a pixel. Electrode 27.
  • the color resist layer 25 includes a red color block, a green color block, and a blue color block arranged in sequence, and edges of adjacent two color blocks are superimposed on each other, and the data lines 24 are located adjacent to each other.
  • the intersection of the blocking blocks; the data line 24 is spaced apart from the shading line 22 in a horizontal direction, the black matrix 26 completely covering the gap between the data line 24 and the shading line 22 and covering part of the shading line 22.
  • the BOA type liquid crystal panel of the invention has the edges of two adjacent color blocking blocks in the color resist layer superimposed on each other to have a light shielding effect, and on the basis of this, a black matrix 26 is covered, and the double layer is shielded. The probability that the gap between the data line 24 and the shading line 22 is exposed can be reduced by 50%.
  • the edge of the superimposed region of the adjacent two color blocking blocks corresponds to the edge of the black matrix 26.
  • the black matrix 26 covers the light-shielding line 22 in a horizontal direction at a distance of 1.5 ⁇ m to prevent light leakage caused by the machine-to-position deviation causing the gap between the data line 24 and the light-shielding line 22 to be exposed.
  • the black matrix 26 Since the overlapping area of the adjacent color block on the lower substrate 2 covers the light shielding line 22 before the black matrix 26 is formed, when the black matrix 26 is designed to cover the distance of the light shielding line 22 in the horizontal direction, It is possible to reduce the portion which is set in consideration of the alignment deviation of the machine, that is, the distance in which the black matrix 26 covers the light-shielding line 22 in the horizontal direction is shortened from 3 ⁇ m to 1.5 ⁇ m, and the width of the light-shielding line 22 is shortened by 1.5 ⁇ m. Further, the pixel electrode 27 is shifted by 1.5 ⁇ m in the direction of the black matrix 26, thereby increasing the aperture ratio of the BOA type liquid crystal panel.
  • the width of the light shielding line 22 is 6.5 ⁇ m, and the width of the light shielding line 22 is shortened from 8 ⁇ m to 6.5 ⁇ m compared with the conventional BOA type liquid crystal panel shown in FIG. 5, which effectively improves the BOA type liquid crystal panel. Opening ratio.
  • the pixel electrodes 27 are spaced apart from the black matrix 26 in the horizontal direction, which can prevent the black matrix 26 from being deviated to cause the topography to affect the risk of dark lines caused by liquid crystal tilting inside the pixel.
  • the distance between the black matrix 26 and the pixel electrode 27 in the horizontal direction is 3 ⁇ m.
  • the light shielding line 22 is located at a gap between the black matrix 26 and the pixel electrode 27 in the horizontal direction, and the pixel electrode 27 covers a part of the light shielding line 22 for blocking the emission from the backlight.
  • the light rays and the capacitance between the data line 24 and the pixel electrode 27 can be lowered, thereby reducing voltage interference between the data line 24 and the pixel electrode 27.
  • the distance at which the pixel electrode 27 covers the light-shielding line 22 in the horizontal direction is 2 ⁇ m.
  • the first substrate 11 and the second substrate 12 are glass substrates.
  • the material of the common electrode 12 and the pixel electrode 27 is ITO (Indium Tin Oxide).
  • the color resist layer and the black matrix are both disposed on the second substrate, and the edges of the adjacent two color block in the color resist layer are superimposed on each other to have a light shielding effect, and On the basis of this, a layer of black matrix is covered to realize double-layer shielding, which effectively avoids the light leakage caused by the gap between the data line and the shading line when the BOA type liquid crystal panel is applied to the curved surface display, and shortens the shading line.
  • the width increases the aperture ratio of the BOA type liquid crystal panel and reduces the cost of the backlight.

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Abstract

一种BOA型液晶面板，色阻层（25）与黑色矩阵（26）均设于第二基板（21）上，色阻层（25）中相邻两色阻块的边缘相互叠加以起到遮光的效果，并在此基础上再覆盖一层黑色矩阵（26），实现双层的遮蔽，有效避免了BOA型液晶面板应用于曲面显示时由于数据线（24）与遮光线（22）之间露出缝隙而导致的漏光现象，同时缩短了遮光线（22）的宽度，提高了BOA型液晶面板的开口率，降低了背光的成本。

Description

BOA型液晶面板 技术领域
本发明涉及显示技术领域，尤其涉及一种BOA型液晶面板。
背景技术
液晶显示装置(Liquid Crystal Display，LCD)具有机身薄、省电、无辐射等众多优点，得到了广泛的应用，如：液晶电视、移动电话、个人数字助理(PDA)、数字相机、计算机屏幕或笔记本电脑屏幕等。
通常液晶显示装置包括壳体、设于壳体内的液晶面板及设于壳体内的背光模组(Backlight module)，其中，液晶面板的结构主要是由一薄膜晶体管阵列基板(Thin Film Transistor Array Substrate，TFT Array Substrate)、一彩色滤光片基板(Color Filter Substrate，CF Substrate)、以及配置于两基板间的液晶层(Liquid Crystal Layer)所构成，其工作原理是通过在两片玻璃基板上施加驱动电压来控制液晶层的液晶分子的旋转，将背光模组的光线折射出来产生画面。
请参阅图1至图2，为现有的液晶面板在弯曲状态下的示意图，该液晶面板包括CF基板100、TFT基板200、及位于CF基板100与TFT基板200之间的液晶层300。所述CF基板100包括第一基板110、及设于所述第一基板110上的色阻层120与黑色矩阵(Black Matrix，BM)130。所述TFT基板200包括第二基板210、遮光线(Shielding Line)220、及数据线(Data Line)230。正常情况下，黑色矩阵130可遮盖所述遮光线220与数据线230之间的缝隙以防止漏光。当该液晶面板应用于曲面显示时，由于TFT基板200与CF基板100的曲率半径的差异，导致CF基板100上的黑色矩阵130与TFT基板200的膜层之间发生相对位置偏移，从而会导致曲面液晶面板产生漏光等现象，同时也会损失一部分开口率。
为了提高液晶面板的开口率，降低生产成本，人们提出一种彩色滤光片贴覆于阵列基板(Color filter On Array，COA)技术，即将CF基板一侧的RGB色阻转移到阵列基板上来制作，原CF基板仅保留黑色矩阵、公共电极以及隔垫物(Photo Spacer，PS)。
请参阅图3至图4，为现有的COA型液晶面板的剖面结构示意图，其中色阻层250’设于下基板200’上。如图3所示，上基板100’中的黑色矩阵130’完全遮盖下基板200’上的数据线240’与遮光线220’之间的 缝隙，同时还多遮盖出遮光线220’一部分。黑色矩阵130’在水平方向上多遮盖出遮光线220’的距离为1-2μm，在图3的COA型液晶面板中具体为1.35μm，可防止上、下基板100’、200’对位偏差导致缝隙露出而漏光的问题。但是如果将该COA型液晶面板应用于曲面显示，则黑色矩阵130’错位的距离会大于之前黑色矩阵130’所遮蔽的距离，依然可能导致漏光的产生。因此，如图4所示，需要对图3的COA型液晶面板进行改善，将黑色矩阵130’多遮盖出遮光线220’的距离增加6-7μm左右，在图4的COA型液晶面板中具体为7μm，这样虽然避免了漏光的发生，但同时也导致开口率的降低。
为了避免液晶面板应用于曲面显示时产生漏光现象的同时，保证液晶面板的开口率，人们提出一种黑色矩阵贴附于阵列基板(BM On Array，BOA)技术，即将黑色矩阵也制作于阵列基板上，这样就可以解决目前曲面液晶面板面临的面板弯折后所带来的漏光、串扰等不良影响，同时可保证液晶面板的开口率。
请参阅图5，为一种现有的BOA型液晶面板的剖面结构示意图，其中色阻层250”和黑色矩阵260”均设于下基板200”上，上基板100”中只留下公共电极120”。黑色矩阵260”完全遮盖数据线240”与遮光线220”之间的缝隙，并且因为曝光机台本身的对位偏差最大为3μm，所以黑色矩阵260”还应至少遮盖住遮光线220”3μm的距离，以防止机台对位偏差导致数据线240”与遮光线220”之间的缝隙露出。此外，为了防止黑色矩阵260”偏差导致地形起伏影响像素内部液晶倾倒而产生的暗纹风险，黑色矩阵260”与像素电极270”之间的间隔距离为3μm，同时像素电极270”在水平方向遮盖住遮光线220”的距离为2μm，总体算下来，遮光线220”的宽度为8μm，相比于普通COA型液晶面板节约了开口率。
然而，由于图5所示的BOA型液晶面板中的遮光线220”的宽度较大，在一定程度上影响了开口率，因此有必要提供一种新型的BOA型液晶面板，以进一步提高液晶面板的开口率。
发明内容
本发明的目的在于提供一种BOA型液晶面板，可避免液晶面板应用于曲面显示时的漏光现象的产生，同时具有较高的开口率。
为实现上述目的，本发明提供一种BOA型液晶面板，包括上基板、与所述上基板相对设置的下基板、及位于所述上基板与下基板之间的液晶层；
所述上基板包括第一基板、及设于所述第一基板上的公共电极；
所述下基板包括第二基板、遮光线、数据线、覆盖所述数据线的色阻层、设于所述色阻层上的黑色矩阵、及像素电极；
所述色阻层包括依次设置的红色色阻块、绿色色阻块、及蓝色色阻块，相邻两色阻块的边缘相互叠加，所述数据线位于相邻两色阻块的相交处；所述数据线与遮光线在水平方向上相间隔，所述黑色矩阵完全遮盖所述数据线与遮光线之间的缝隙并遮盖部分遮光线。
所述黑色矩阵在水平方向上遮盖所述遮光线的距离为1.5μm。
所述像素电极与所述黑色矩阵在水平方向上相间隔。
所述黑色矩阵与所述像素电极在水平方向的距离为3μm。
所述遮光线在水平方向上位于所述黑色矩阵与像素电极间的缝隙处。
所述像素电极遮盖部分遮光线。
所述像素电极在水平方向上遮盖所述遮光线的距离为2μm。
所述遮光线的宽度为6.5μm。
所述第一基板、第二基板为玻璃基板。
所述公共电极、像素电极的材料为ITO。
本发明还提供一种BOA型液晶面板，包括上基板、与所述上基板相对设置的下基板、及位于所述上基板与下基板之间的液晶层；
所述上基板包括第一基板、及设于所述第一基板上的公共电极；
所述下基板包括第二基板、遮光线、数据线、覆盖所述数据线的色阻层、设于所述色阻层上的黑色矩阵、及像素电极；
所述色阻层包括依次设置的红色色阻块、绿色色阻块、及蓝色色阻块，相邻两色阻块的边缘相互叠加，所述数据线位于相邻两色阻块的相交处；所述数据线与遮光线在水平方向上相间隔，所述黑色矩阵完全遮盖所述数据线与遮光线之间的缝隙并遮盖部分遮光线；
其中，所述黑色矩阵在水平方向上遮盖所述遮光线的距离为1.5μm；
其中，所述像素电极与所述黑色矩阵在水平方向上相间隔；
其中，所述像素电极遮盖部分遮光线；
其中，所述遮光线的宽度为6.5μm；
其中，所述第一基板、第二基板为玻璃基板；
其中，所述公共电极、像素电极的材料为ITO。
本发明的有益效果：本发明的BOA型液晶面板，色阻层与黑色矩阵均设于第二基板上，色阻层中相邻两色阻块的边缘相互叠加以起到遮光的效果，并在此基础上再覆盖一层黑色矩阵，实现双层的遮蔽，有效避免了BOA型液晶面板应用于曲面显示时由于数据线与遮光线之间露出缝隙而导致的 漏光现象，同时缩短了遮光线的宽度，提高了BOA型液晶面板的开口率，降低了背光的成本。
附图说明
为了能更进一步了解本发明的特征以及技术内容，请参阅以下有关本发明的详细说明与附图，然而附图仅提供参考与说明用，并非用来对本发明加以限制。
附图中，
图1为一种现有的液晶面板应用于曲面显示时的剖面结构示意图；
图2为图1的液晶面板应用于曲面显示时的局部剖面结构示意图；
图3为一种现有的COA型液晶面板的剖面结构示意图；
图4为图3的COA型液晶面板改善后的剖面结构示意图；
图5为一种现有的BOA型液晶面板的剖面结构示意图；
图6为本发明的BOA型液晶面板的剖面结构示意图。
具体实施方式
为更进一步阐述本发明所采取的技术手段及其效果，以下结合本发明的优选实施例及其附图进行详细描述。
请参阅图6，本发明提供一种BOA型液晶面板，包括上基板1、与所述上基板1相对设置的下基板2、及位于所述上基板1与下基板2之间的液晶层(未图示)。
具体地，所述上基板1包括第一基板11、及设于所述第一基板11上的公共电极12。
具体地，所述下基板2包括第二基板21、遮光线22、数据线24、覆盖所述数据线24的色阻层25、设于所述色阻层25上的黑色矩阵26、及像素电极27。
具体地，所述色阻层25包括依次设置的红色色阻块、绿色色阻块、及蓝色色阻块，相邻两色阻块的边缘相互叠加，所述数据线24位于相邻两色阻块的相交处；所述数据线24与遮光线22在水平方向上相间隔，所述黑色矩阵26完全遮盖所述数据线24与遮光线22之间的缝隙并遮盖部分遮光线22。本发明的BOA型液晶面板，使色阻层中相邻两色阻块的边缘相互叠加，以起到遮光的效果，并在此基础上，再覆盖一层黑色矩阵26，通过双层的遮蔽，可使所述数据线24与遮光线22之间的缝隙露出的概率降低50％。
具体的，相邻两色阻块的叠加区域的边缘与黑色矩阵26的边缘相对应。
具体地，所述黑色矩阵26在水平方向上遮盖所述遮光线22的距离为1.5μm，以防止机台对位偏差导致数据线24与遮光线22之间的缝隙露出而导致的漏光。由于在制作黑色矩阵26之前，所述下基板2上已经有相邻色阻块的叠加区域对遮光线22进行遮盖，因此在设计黑色矩阵26在水平方向上遮盖所述遮光线22的距离时，可以减少考虑机台对位偏差而设置的部分，即将黑色矩阵26在水平方向上遮盖所述遮光线22的距离从3μm缩短为1.5μm，进而将所述遮光线22的宽度缩短1.5μm，并且将所述像素电极27向黑色矩阵26的方向偏移1.5μm，从而提高了BOA型液晶面板的开口率。
具体地，所述遮光线22的宽度为6.5μm，与图5所示的现有的BOA型液晶面板相比，遮光线22的宽度由8μm缩短至6.5μm，有效提高了BOA型液晶面板的开口率。
具体地，所述像素电极27与所述黑色矩阵26在水平方向上相间隔，可以防止黑色矩阵26偏差导致地形起伏影响像素内部液晶倾倒而产生的暗纹风险。具体地，所述黑色矩阵26与所述像素电极27在水平方向的距离为3μm。
具体地，所述遮光线22在水平方向上位于所述黑色矩阵26与像素电极27间的缝隙处，所述像素电极27遮盖部分遮光线22，所述遮光线22用于遮挡由背光源射出的光线，并且可以降低数据线24与像素电极27之间的电容，从而减少数据线24与像素电极27之间的电压干扰。具体地，所述像素电极27在水平方向上遮盖所述遮光线22的距离为2μm。
具体地，所述第一基板11、第二基板12为玻璃基板。
具体地，所述公共电极12、像素电极27的材料为ITO(氧化铟锡)。
综上所述，本发明的BOA型液晶面板，色阻层与黑色矩阵均设于第二基板上，色阻层中相邻两色阻块的边缘相互叠加以起到遮光的效果，并在此基础上再覆盖一层黑色矩阵，实现双层的遮蔽，有效避免了BOA型液晶面板应用于曲面显示时由于数据线与遮光线之间露出缝隙而导致的漏光现象，同时缩短了遮光线的宽度，提高了BOA型液晶面板的开口率，降低了背光的成本。
以上所述，对于本领域的普通技术人员来说，可以根据本发明的技术方案和技术构思作出其他各种相应的改变和变形，而所有这些改变和变形都应属于本发明后附的权利要求的保护范围。

Claims (14)

  1. 一种BOA型液晶面板，包括上基板、与所述上基板相对设置的下基板、及位于所述上基板与下基板之间的液晶层；
    所述上基板包括第一基板、及设于所述第一基板上的公共电极；
    所述下基板包括第二基板、遮光线、数据线、覆盖所述数据线的色阻层、设于所述色阻层上的黑色矩阵、及像素电极；
    所述色阻层包括依次设置的红色色阻块、绿色色阻块、及蓝色色阻块，相邻两色阻块的边缘相互叠加，所述数据线位于相邻两色阻块的相交处；所述数据线与遮光线在水平方向上相间隔，所述黑色矩阵完全遮盖所述数据线与遮光线之间的缝隙并遮盖部分遮光线。
  2. 如权利要求1所述的BOA型液晶面板，其中，所述黑色矩阵在水平方向上遮盖所述遮光线的距离为1.5μm。
  3. 如权利要求1所述的BOA型液晶面板，其中，所述像素电极与所述黑色矩阵在水平方向上相间隔。
  4. 如权利要求3所述的BOA型液晶面板，其中，所述黑色矩阵与所述像素电极在水平方向的距离为3μm。
  5. 如权利要求3所述的BOA型液晶面板，其中，所述遮光线在水平方向上位于所述黑色矩阵与像素电极间的缝隙处。
  6. 如权利要求1所述的BOA型液晶面板，其中，所述像素电极遮盖部分遮光线。
  7. 如权利要求6所述的BOA型液晶面板，其中，所述像素电极在水平方向上遮盖所述遮光线的距离为2μm。
  8. 如权利要求1所述的BOA型液晶面板，其中，所述遮光线的宽度为6.5μm。
  9. 如权利要求1所述的BOA型液晶面板，其中，所述第一基板、第二基板为玻璃基板。
  10. 如权利要求1所述的BOA型液晶面板，其中，所述公共电极、像素电极的材料为ITO。
  11. 一种BOA型液晶面板，包括上基板、与所述上基板相对设置的下基板、及位于所述上基板与下基板之间的液晶层；
    所述上基板包括第一基板、及设于所述第一基板上的公共电极；
    所述下基板包括第二基板、遮光线、数据线、覆盖所述数据线的色阻 层、设于所述色阻层上的黑色矩阵、及像素电极；
    所述色阻层包括依次设置的红色色阻块、绿色色阻块、及蓝色色阻块，相邻两色阻块的边缘相互叠加，所述数据线位于相邻两色阻块的相交处；所述数据线与遮光线在水平方向上相间隔，所述黑色矩阵完全遮盖所述数据线与遮光线之间的缝隙并遮盖部分遮光线；
    其中，所述黑色矩阵在水平方向上遮盖所述遮光线的距离为1.5μm；
    其中，所述像素电极与所述黑色矩阵在水平方向上相间隔；
    其中，所述像素电极遮盖部分遮光线；
    其中，所述遮光线的宽度为6.5μm；
    其中，所述第一基板、第二基板为玻璃基板；
    其中，所述公共电极、像素电极的材料为ITO。
  12. 如权利要求11所述的BOA型液晶面板，其中，所述黑色矩阵与所述像素电极在水平方向的距离为3μm。
  13. 如权利要求11所述的BOA型液晶面板，其中，所述遮光线在水平方向上位于所述黑色矩阵与像素电极间的缝隙处。
  14. 如权利要求11所述的BOA型液晶面板，其中，所述像素电极在水平方向上遮盖所述遮光线的距离为2μm。
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