WO2021035847A1 - 液晶显示面板及其制作方法与无边框液晶显示装置 - Google Patents

液晶显示面板及其制作方法与无边框液晶显示装置 Download PDF

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Publication number
WO2021035847A1
WO2021035847A1 PCT/CN2019/107095 CN2019107095W WO2021035847A1 WO 2021035847 A1 WO2021035847 A1 WO 2021035847A1 CN 2019107095 W CN2019107095 W CN 2019107095W WO 2021035847 A1 WO2021035847 A1 WO 2021035847A1
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area
liquid crystal
crystal display
array substrate
display panel
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PCT/CN2019/107095
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English (en)
French (fr)
Inventor
王醉
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Tcl华星光电技术有限公司
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Priority to US16/627,814 priority Critical patent/US11435630B2/en
Publication of WO2021035847A1 publication Critical patent/WO2021035847A1/zh

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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
    • G02F1/133351—Manufacturing of individual cells out of a plurality of cells, e.g. by dicing
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133512—Light shielding layers, e.g. black matrix
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/136209—Light shielding layers, e.g. black matrix, incorporated in the active matrix substrate, e.g. structurally associated with the switching element

Definitions

  • the present invention relates to the field of display technology, in particular to a frameless liquid crystal display panel and a manufacturing method thereof.
  • LCD Liquid Crystal Display
  • the liquid crystal display panel consists of a color film substrate (CF, Color Filter), a thin film transistor substrate (TFT, Thin Film Transistor), liquid crystal (LC, Liquid Crystal) sandwiched between the color film substrate and the thin film transistor substrate, and a sealant frame (Sealant).
  • the molding process generally includes: the front-end array (Array) process (thin film, yellow light, etching And peeling), the middle cell process (the TFT substrate is bonded to the CF substrate), and the back module assembly process (the driver IC is pressed against the printed circuit board).
  • the front Array process is mainly to form TFT substrates to control the movement of liquid crystal molecules;
  • the middle cell process is mainly to add liquid crystal between the TFT substrate and the CF substrate;
  • the back module assembly process is mainly to drive IC pressing and printed circuits
  • the integration of the board drives the rotation of the liquid crystal molecules to display images.
  • the existing LCD panel Adopt the design that the CF substrate is retracted from the TFT substrate, and this design further worsens the edge light leakage.
  • the object of the present invention is to provide a liquid crystal display panel, which can solve the problem of light leakage at the edge of a borderless liquid crystal display device and improve the display quality.
  • the object of the present invention is also to provide a method for manufacturing a liquid crystal display panel, which can solve the problem of light leakage at the edge of a borderless liquid crystal display device, improve the display quality, and do not increase the manufacturing cost.
  • the purpose of the present invention is also to provide a borderless liquid crystal display device, which can avoid edge light leakage and improve display quality.
  • the present invention provides a liquid crystal display panel including an array substrate, a counter substrate arranged opposite to the array substrate, and a liquid crystal layer located between the array substrate and the counter substrate;
  • the array substrate includes a first area covered by a counter substrate and a second area located outside the first area; the counter substrate includes a third area and a fourth area surrounding the third area;
  • the side of the fourth area facing the array substrate is covered with a black matrix, and the side of the array substrate facing the counter substrate is provided with a metal shading part;
  • the metal shading portion covers the second area and a part of the first area adjacent to the second area, and one side edge of the metal shading portion close to the first area is located under the black matrix.
  • the metal shading part is in a floating state.
  • the metal shading part is connected to the common voltage of the liquid crystal display panel.
  • the metal shading part is a flat metal film or a mesh metal film that is continuously connected.
  • the present invention provides a method for manufacturing a liquid crystal display panel, which includes the following steps:
  • Step S1 Provide a liquid crystal display mother board, the liquid crystal display mother board comprising a plurality of liquid crystal display panels arranged at intervals;
  • Each liquid crystal display panel includes an array substrate, an opposing substrate disposed opposite to the array substrate, and a liquid crystal layer located between the array substrate and the opposing substrate;
  • the array substrate includes a first area covered by the opposing substrate and A second area outside the first area;
  • the counter substrate includes a third area and a fourth area surrounding the third area;
  • the side of the fourth area facing the array substrate is covered with a black matrix, and the side of the array substrate facing the counter substrate is provided with a metal shading part;
  • Step S2 A first cutting line is provided along a side edge of the second area away from the first area, a second cutting line is provided along a side edge of the fourth area away from the third area, and the metal shading portion is away from the first area.
  • One side edge of a region exceeds the first cutting line;
  • Step S3 cutting the liquid crystal display mother board along the first cutting line and the second cutting line to obtain several liquid crystal display panels;
  • Step S4 cutting the liquid crystal display mother board along the preset first cutting line and the second cutting line respectively to obtain several liquid crystal display panels; after cutting, the metal shading part in each liquid crystal display panel exceeds the first cutting The part of the line is removed, the remaining metal shading part covers the second area and a part of the first area adjacent to the second area, and the side edge of the metal shading part close to the first area is located in the black Below the matrix.
  • the distance between the side edge of the metal shading portion away from the first area and the side edge close to the first area and the first cutting line are both greater than 100um.
  • the metal shading part is in a floating state.
  • the metal shading part is connected to the common voltage of the liquid crystal display panel.
  • the metal shading part is a flat metal film or a mesh metal film that is continuously connected.
  • the present invention provides a frameless liquid crystal display device, which includes the above-mentioned liquid crystal display panel.
  • the present invention provides a liquid crystal display panel, a manufacturing method thereof, and a frameless liquid crystal display device.
  • the liquid crystal display panel includes an array substrate, an opposing substrate disposed opposite to the array substrate, and a liquid crystal layer located between the array substrate and the opposing substrate; the array substrate includes a first area covered by the opposing substrate and a first area covered by the opposing substrate.
  • a second area outside of an area; the counter substrate includes a third area and a fourth area surrounding the third area; the fourth area is covered with a black matrix on the side facing the array substrate, and the array substrate faces
  • One side of the opposite substrate is provided with a metal shading part; the metal shading part covers the second area and a part of the first area adjacent to the second area, and the metal shading part is close to a part of the first area
  • the side edge is located under the black matrix, and by adding a metal shading part, the edge light leakage problem of the borderless liquid crystal display device can be solved, and the display quality can be improved.
  • Figure 1 is a side view of the liquid crystal display panel of the present invention.
  • FIG. 2 is a top view of a liquid crystal display mother board in the method for manufacturing a liquid crystal display panel of the present invention
  • FIG. 3 is a schematic diagram of the positions of the metal shading portion and the first cutting line in an embodiment of the method for manufacturing a liquid crystal display panel of the present invention
  • FIG. 4 is a schematic diagram of the positions of the metal shading portion and the first cutting line in another embodiment of the method for manufacturing a liquid crystal display panel of the present invention
  • FIG. 5 is a flowchart of a method for manufacturing a liquid crystal display panel of the present invention.
  • FIG. 6 is a schematic diagram of the borderless liquid crystal display device of the present invention.
  • the present invention provides a liquid crystal display panel including an array substrate 1, a counter substrate 2 disposed opposite to the array substrate 1, and a liquid crystal layer 3 located between the array substrate 1 and the counter substrate 2;
  • the array substrate 1 includes a first area 11 covered by an opposing substrate 2 and a second area 12 located outside the first area 11; the opposing substrate 2 includes a third area 21 and surrounding the third area 21 The fourth area 22;
  • the side of the fourth area 22 facing the array substrate 1 is covered with a black matrix 31, and the side of the array substrate 1 facing the counter substrate 2 is provided with a metal shading portion 32;
  • the metal shading portion 32 covers the second area 12 and a part of the first area 11 adjacent to the second area 12, and the side edge of the metal shading portion 32 close to the first area 11 is located in the black area. Below matrix 31.
  • the electrical connection state of the metal shading portion 32 can be set according to the actual requirements of the product.
  • the metal shading portion 32 may be in a floating state without any voltage being connected.
  • the metal shading portion 32 is connected to the common voltage (VCom) of the liquid crystal display panel.
  • the shape of the metal shading portion 32 can be selected according to needs.
  • the metal shading portion 32 may be a connection Uninterrupted flat metal film, as shown in FIG. 4, in other embodiments of the present invention, the metal shading portion 32 may be a mesh metal film, wherein the light shielding effect of the flat metal film is better than that of the mesh metal film.
  • the opposite substrate 2 is a color filter substrate, on which a color filter layer is further provided.
  • the array substrate 1 specifically includes a substrate, a first metal layer provided on the substrate for forming a gate and a gate line of a thin film transistor, and a gate insulating layer provided on the first metal layer.
  • the metal shading portion 32 can be located in the first metal layer or the second metal layer. When the metal shading portion 32 is located in the first metal layer, it is formed simultaneously with the gate and the gate line through a patterning process.
  • the metal shading portion 32 When the metal shading portion 32 is located on the second metal layer, it is formed simultaneously with the source, drain and source lines through a patterning process, that is, the formation of the metal shading portion 32 of the present invention does not require additional
  • the patterning process only needs to change the patterns of the first metal layer and the second metal layer, without adding additional process and labor costs.
  • the liquid crystal display panel of the present invention is mainly applied to a frameless liquid crystal display device.
  • the metal shading portion 32 when light is to be emitted from the second area 12 of the array substrate 1, the metal shading portion 32 will reflect the light to prevent it from exiting, and the metal shading portion 32 extends below the black matrix 31, and cooperates with the black matrix 32 to effectively ensure the shading effect of the light, avoid edge light leakage, and improve the display quality.
  • the present invention also provides a method for manufacturing a liquid crystal display panel, which includes the following steps:
  • Step S1 as shown in FIGS. 2 to 4, providing a liquid crystal display mother board, the liquid crystal display mother board comprising a plurality of liquid crystal display panels arranged at intervals;
  • Each liquid crystal display panel includes an array substrate 1, a counter substrate 2 disposed opposite to the array substrate 1, and a liquid crystal layer 3 located between the array substrate 1 and the counter substrate 2;
  • the array substrate 1 includes a counter substrate 2 covers a first area 11 and a second area 12 located outside the first area 11;
  • the counter substrate 2 includes a third area 21 and a fourth area 22 surrounding the third area 21;
  • the side of the fourth area 22 facing the array substrate 1 is covered with a black matrix 31, and the side of the array substrate 1 facing the counter substrate 2 is provided with a metal shading portion 32;
  • Step S2 A first cutting line CL1 is provided along a side edge of the second area 12 away from the first area 11, and a second cutting line CL2 is provided along a side edge of the fourth area 22 away from the third area 21, so An edge of the metal light shielding portion 32 away from the first region 11 extends beyond the first cutting line CL1.
  • Step S3 cutting the liquid crystal display mother board along the first cutting line and the second cutting line to obtain several liquid crystal display panels;
  • Step S4 cutting the liquid crystal display mother board along the preset first cutting line and the second cutting line respectively to obtain several liquid crystal display panels; after cutting, the metal shading portion 32 in each liquid crystal display panel exceeds the first cutting line.
  • the part of the cutting line CL1 is removed, the remaining metal shading portion 32 covers the second area 12 and a part of the first area 11 adjacent to the second area 12, and the metal shading portion 32 is close to the first area 11
  • One side edge of is located below the black matrix 31.
  • step S2 before cutting, that is, in step S2, the side edge of the metal shading portion 32 away from the first area 11 and the side edge close to the first area 11 are connected to the first cutting
  • the distances between the lines CL1 are all greater than 100 um, which can ensure that the metal shading portion 32 can also produce a shielding effect within the tolerance of the cutting process.
  • the electrical connection state of the metal shading portion 32 can be set according to the actual requirements of the product.
  • the metal shading portion 32 may be in a floating state without any voltage being connected.
  • the metal shading portion 32 is connected to the common voltage (VCom) of the liquid crystal display panel.
  • VCom common voltage
  • the metal shading portion 32 may also be used before cutting. Used as an external circuit, floating after cutting.
  • the shape of the metal shading portion 32 can be selected according to needs.
  • the metal shading portion 32 may be a flat metal film that is continuously connected, such as
  • the metal light shielding portion 32 may be a mesh metal film, and the light shielding effect of the flat metal film is better than that of the mesh metal film.
  • the opposite substrate 2 is a color filter substrate, on which a color filter layer is further provided.
  • the array substrate 1 specifically includes a substrate, a first metal layer provided on the substrate for forming a gate and a gate line of a thin film transistor, and a gate insulating layer provided on the first metal layer.
  • the metal shading portion 32 can be located in the first metal layer or the second metal layer. When the metal shading portion 32 is located in the first metal layer, it is formed simultaneously with the gate and the gate line through a patterning process.
  • the metal shading portion 32 When the metal shading portion 32 is located on the second metal layer, it is formed simultaneously with the source, drain and source lines through a patterning process, that is, the formation of the metal shading portion 32 of the present invention does not require additional
  • the patterning process only needs to change the patterns of the first metal layer and the second metal layer, without adding additional process and labor costs.
  • the liquid crystal display panel of the present invention is mainly applied to a frameless liquid crystal display device.
  • the metal shading part 32 reflects the light and prevents it from exiting.
  • the metal shading part 32 extends below the black matrix 31, and cooperates with the black matrix 32 to effectively ensure the shading effect of the light, avoid edge light leakage, and improve the display quality.
  • FIG. 6 a frameless liquid crystal display device including the above-mentioned liquid crystal display panel.
  • the frameless liquid crystal display device further includes a backlight module 4 arranged on the side of the array substrate 1 away from the counter substrate 2. Due to the shielding of the metal shading portion 32, the backlight module 4 When the light emitted from the module 4 is to be emitted from the second area 12 of the array substrate 1, the metal shading portion 32 will reflect the light to prevent it from exiting, and the metal shading portion 32 extends below the black matrix 31 and is effective in cooperation with the black matrix 32 Ensure the shading effect of the light, avoid light leakage at the edge, and improve the display quality.
  • the present invention provides a liquid crystal display panel, a manufacturing method thereof, and a borderless liquid crystal display device.
  • the liquid crystal display panel includes an array substrate, an opposing substrate disposed opposite to the array substrate, and a liquid crystal layer located between the array substrate and the opposing substrate; the array substrate includes a first area covered by the opposing substrate and a first area covered by the opposing substrate.
  • a second area outside of an area; the counter substrate includes a third area and a fourth area surrounding the third area; the fourth area is covered with a black matrix on the side facing the array substrate, and the array substrate faces
  • One side of the opposite substrate is provided with a metal shading part; the metal shading part covers the second area and a part of the first area adjacent to the second area, and the metal shading part is close to a part of the first area
  • the side edge is located under the black matrix, and by adding a metal shading part, the edge light leakage problem of the borderless liquid crystal display device can be solved, and the display quality can be improved.

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Abstract

一种液晶显示面板及其制作方法与无边框液晶显示装置，液晶显示面板包括阵列基板（1）、与阵列基板（1）相对设置的对置基板（2）及位于阵列基板（1）与对置基板（2）之间液晶层（3）；阵列基板（1）包括被对置基板（2）覆盖的第一区域（11）及位于第一区域（11）外侧的第二区域（12）；对置基板（2）包括第三区域（21）及包围第三区域（21）的第四区域（22）；第四区域（22）朝向阵列基板（1）的一侧覆盖有黑色矩阵（31），阵列基板（1）朝向对置基板（2）的一侧设有金属遮光部（32）；金属遮光部（32）覆盖第二区域（12）及与第二区域（12）相邻的部分第一区域（11），且金属遮光部（32）靠近第一区域（11）的一侧边缘位于黑色矩阵（31）下方，通过增设金属遮光部（32），能够解决无边框液晶显示装置的边缘漏光问题，提升显示品质。

Description

液晶显示面板及其制作方法与无边框液晶显示装置 技术领域
本发明涉及显示技术领域，尤其涉及一种无边框液晶显示面板及其制作方法。
 背景技术
随着显示技术的发展，由液晶显示面板构成的液晶显示器 (Liquid Crystal Display，LCD)等平面显示装置因具有高画质、省电、机身薄、无辐射等优点，而被广泛的应用于手机、电视、个人数字助理、数字相机、笔记本电脑、台式计算机等各种消费性电子产 品，成为显示装置中的主流。
通常液晶显示面板由彩膜基板（CF，Color Filter）、薄膜晶体管基板（TFT，Thin Film Transistor)、夹于彩膜基板与薄膜晶体管基板之间的液晶（LC，Liquid Crystal）及密封胶框（Sealant）组成，其成型工艺一般包括：前段阵列（Array）制程（薄膜、黄光、蚀刻及剥膜）、中段成盒（Cell）制程（TFT基板与CF基板贴合）及后段模组组装制程（驱动IC与印刷电路板压合）。其中，前段Array制程主要是形成TFT基板，以便于控制液晶分子的运动；中段Cell制程主要是在TFT基板与CF基板之间添加液晶；后段模组组装制程主要是驱动IC压合与印刷电路板的整合，进而驱动液晶分子转动，显示图像。
目前的液晶显示器均具有一定宽度的外边框，覆盖液晶显示 面板的周围表面，因此在外观上会有显示器的显示面积缩小的视觉感受。为了在相同显示器尺寸下提高显示面积，液晶显示装置无边框（bezel less）设计已将成为当今显示技术的发展的重要趋势，相比传统结构，无边框液晶显示装置整机、模组去除了非绑定（bonding）侧的前框，使液晶显示面板（panel）直接裸露在外，实现整面一体化的视觉效果。
由于没有前框遮挡，背光模组发出的光经过多次反射/折射会从液晶显示面板边缘投射出来，导致边缘漏光问题，并且为了规避膜层剥离（peeling）风险，现有的液晶显示面板通常采用CF基板相对TFT基板内缩的设计，这一设计进一步恶化了边缘漏光。
 技术问题
本发明的目的在于提供一种液晶显示面板，能够解决无边框液晶显示装置的边缘漏光问题，提升显示品质。
本发明的目的还在于提供一种液晶显示面板的制作方法，能够解决无边框液晶显示装置的边缘漏光问题，提升显示品质，且不增加制作成本。
本发明的目的还在于提供一种无边框液晶显示装置，能够避免边缘漏光，提升显示品质。
 技术解决方案
为实现上述目的，本发明提供一种液晶显示面板，包括阵列基板、与所述阵列基板相对设置的对置基板及位于阵列基板与对置基板之间液晶层；
所述阵列基板包括被对置基板覆盖的第一区域及位于第一区域外侧的第二区域；所述对置基板包括第三区域及包围所述第三区域的第四区域；
所述第四区域朝向阵列基板的一侧覆盖有黑色矩阵，所述阵列基板朝向对置基板的一侧设有金属遮光部；
所述金属遮光部覆盖所述第二区域及与第二区域相邻的部分第一区域，且所述金属遮光部靠近所述第一区域的一侧边缘位于所述黑色矩阵下方。
所述金属遮光部为浮空状态。
所述金属遮光部接入液晶显示面板的公共电压。
所述金属遮光部为连接不间断的平板状金属薄膜或网状金属薄膜。
本发明提供一种液晶显示面板的制作方法，包括如下步骤：
步骤S1、提供液晶显示母板，所述液晶显示母板包括间隔排列的多个液晶显示面板；
每一个液晶显示面板均包括阵列基板、与所述阵列基板相对设置的对置基板及位于阵列基板与对置基板之间液晶层；所述阵列基板包括被对置基板覆盖的第一区域及位于第一区域外侧的第二区域；所述对置基板包括第三区域及包围所述第三区域的第四区域；
所述第四区域朝向阵列基板的一侧覆盖有黑色矩阵，所述阵列基板朝向对置基板的一侧设有金属遮光部；
步骤S2、沿所述第二区域远离第一区域的一侧边缘设置第一切割线，沿所述第四区域远离第三区域的一侧边缘设置第二切割线，所述金属遮光部远离第一区域的一侧边缘超出所述第一切割线；
步骤S3、沿所述第一切割线及第二切割线对所述液晶显示母板进行切割，得到数个液晶显示面板；
步骤S4、分别沿预设的第一切割线及第二切割线切割所述液晶显示母板，得到数个液晶显示面板；切割后，各个液晶显示面板中的金属遮光部超出所述第一切割线的部分被去除，剩余的金属遮光部覆盖所述第二区域及与第二区域相邻的部分第一区域，且所述金属遮光部靠近所述第一区域的一侧边缘位于所述黑色矩阵下方。
所述步骤S2中，所述金属遮光部远离第一区域的一侧边缘及靠近第一区域的一侧边缘与第一切割线之间的距离均大于100um。
所述金属遮光部为浮空状态。
所述金属遮光部接入液晶显示面板的公共电压。
所述金属遮光部为连接不间断的平板状金属薄膜或网状金属薄膜。
本发明提供一种无边框液晶显示装置，包括上述的液晶显示面板。
 有益效果
本发明的有益效果：本发明提供一种液晶显示面板及其制作方法与无边框液晶显示装置。所述液晶显示面板包括阵列基板、与所述阵列基板相对设置的对置基板及位于阵列基板与对置基板之间液晶层；所述阵列基板包括被对置基板覆盖的第一区域及位于第一区域外侧的第二区域；所述对置基板包括第三区域及包围所述第三区域的第四区域；所述第四区域朝向阵列基板的一侧覆盖有黑色矩阵，所述阵列基板朝向对置基板的一侧设有金属遮光部；所述金属遮光部覆盖所述第二区域及与第二区域相邻的部分第一区域，且所述金属遮光部靠近所述第一区域的一侧边缘位于所述黑色矩阵下方，通过增设金属遮光部，能够解决无边框液晶显示装置的边缘漏光问题，提升显示品质。
 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为本发明的液晶显示面板的侧视图；
图2为本发明的液晶显示面板制作方法中的液晶显示母板的俯视图；
图3为本发明的液晶显示面板制作方法的一实施例中金属遮光部与第一切割线的位置示意图；
图4为本发明的液晶显示面板制作方法的另一实施例中金属遮光部与第一切割线的位置示意图；
图5为本发明的液晶显示面板制作方法的流程图；
图6为本发明的无边框液晶显示装置的示意图。
 本发明的最佳实施方式
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1，本发明提供一种液晶显示面板，包括阵列基板1、与所述阵列基板1相对设置的对置基板2及位于阵列基板1与对置基板2之间液晶层3；
所述阵列基板1包括被对置基板2覆盖的第一区域11及位于第一区域11外侧的第二区域12；所述对置基板2包括第三区域21及包围所述第三区域21的第四区域22；
所述第四区域22朝向阵列基板1的一侧覆盖有黑色矩阵31，所述阵列基板1朝向对置基板2的一侧设有金属遮光部32；
所述金属遮光部32覆盖所述第二区域12及与第二区域12相邻的部分第一区域11，且所述金属遮光部32靠近所述第一区域11的一侧边缘位于所述黑色矩阵31下方。
具体地，所述金属遮光部32的接电状态可以根据产品的实际需求进行设置，在本发明的一些实施例中，所述金属遮光部32可以为不接任何电压的浮空（Floating）状态，在本发明的另一些实施例中，所述金属遮光部32接入液晶显示面板的公共电压（VCom）。
具体地，如图3及图4所示，所述金属遮光部32的形状可以根据需要进行选择，如图3所示，在本发明的一些实施例中，所述金属遮光部32可以为连接不间断的平板状金属薄膜，如图4所示，在本发明的另一些实施例中，所述金属遮光部32可以为网状金属薄膜，其中平板状金属薄膜的遮光效果优于网状金属薄膜。
具体地，在本发明的优选实施例中，所述对置基板2为彩膜基板，其上还设有彩色滤光层。
进一步地，所述阵列基板1具体包括衬底、设于衬底上的用于形成薄膜晶体管栅极及栅极线的第一金属层、设于所述第一金属层上的栅极绝缘层、设于所述栅极绝缘层上的半导体层、设于所述栅极绝缘层及半导体层上的用于形成薄膜晶体管的源极、漏极及源极线的第二金属层、设于所述第二金属层上的钝化层及设于钝化层上的像素电极。根据产品的需要，所述金属遮光部32可以位于第一金属层或第二金属层，当金属遮光部32位于第一金属层时，其与栅极及栅极线通过一道图案化工艺同时形成，当金属遮光部32位于第二金属层时，其与源极、漏极及源极线通过一道图案化工艺同时形成，也即是说，本发明的金属遮光部32的形成无需增加额外的图案化工艺，仅需要改变第一金属层及第二金属层的图案即可，不会增加额外的工序及人力成本。
需要说明的是，本发明的液晶显示面板主要应用于无边框的液晶显示装置，应用时，由于金属遮光部32的遮挡，当光线要从阵列基板1的第二区域12射出时，金属遮光部32会反射该光线，阻止其射出，且金属遮光部32延伸至黑色矩阵31的下方，与黑色矩阵32配合有效保证光线的遮光效果，避免边缘漏光，提升显示品质。
请参阅图5，本发明还提供一种液晶显示面板的制作方法，包括如下步骤：
步骤S1、如图2至图4所示，提供液晶显示母板，所述液晶显示母板包括间隔排列的多个液晶显示面板；
每一个液晶显示面板均包括阵列基板1、与所述阵列基板1相对设置的对置基板2及位于阵列基板1与对置基板2之间液晶层3；所述阵列基板1包括被对置基板2覆盖的第一区域11及位于第一区域11外侧的第二区域12；所述对置基板2包括第三区域21及包围所述第三区域21的第四区域22；
所述第四区域22朝向阵列基板1的一侧覆盖有黑色矩阵31，所述阵列基板1朝向对置基板2的一侧设有金属遮光部32；
步骤S2、沿所述第二区域12远离第一区域11的一侧边缘设置第一切割线CL1，沿所述第四区域22远离第三区域21的一侧边缘设置第二切割线CL2，所述金属遮光部32远离第一区域11的一侧边缘超出所述第一切割线CL1。
步骤S3、沿所述第一切割线及第二切割线对所述液晶显示母板进行切割，得到数个液晶显示面板；
步骤S4、分别沿预设的第一切割线及第二切割线切割所述液晶显示母板，得到数个液晶显示面板；切割后，各个液晶显示面板中的金属遮光部32超出所述第一切割线CL1的部分被去除，剩余的金属遮光部32覆盖所述第二区域12及与第二区域12相邻的部分第一区域11，且所述金属遮光部32靠近所述第一区域11的一侧边缘位于所述黑色矩阵31下方。
具体地，结合图2至图4，在切割前，即所述步骤S2中，所述金属遮光部32远离第一区域11的一侧边缘及靠近第一区域11的一侧边缘与第一切割线CL1之间的距离均大于100um，能够保证确保在切割制程公差内金属遮光部32也可以产生遮挡作用。
具体地，所述金属遮光部32的接电状态可以根据产品的实际需求进行设置，在本发明的一些实施例中，所述金属遮光部32可以为不接任何电压的浮空（Floating）状态，在本发明的另一些实施例中，所述金属遮光部32接入液晶显示面板的公共电压（VCom），在本发明的又一些实施例中，所述金属遮光部32还可以在切割前作为外部线路使用，在切割后浮空。
具体地，所述金属遮光部32的形状可以根据需要进行选择，如图3所示，在本发明的一些实施例中，所述金属遮光部32可以为连接不间断的平板状金属薄膜，如图4所示，在本发明的另一些实施例中，所述金属遮光部32可以为网状金属薄膜，其中平板状金属薄膜的遮光效果优于网状金属薄膜。
具体地，在本发明的优选实施例中，所述对置基板2为彩膜基板，其上还设有彩色滤光层。
进一步地，所述阵列基板1具体包括衬底、设于衬底上的用于形成薄膜晶体管栅极及栅极线的第一金属层、设于所述第一金属层上的栅极绝缘层、设于所述栅极绝缘层上的半导体层、设于所述栅极绝缘层及半导体层上的用于形成薄膜晶体管的源极、漏极及源极线的第二金属层、设于所述第二金属层上的钝化层及设于钝化层上的像素电极。根据产品的需要，所述金属遮光部32可以位于第一金属层或第二金属层，当金属遮光部32位于第一金属层时，其与栅极及栅极线通过一道图案化工艺同时形成，当金属遮光部32位于第二金属层时，其与源极、漏极及源极线通过一道图案化工艺同时形成，也即是说，本发明的金属遮光部32的形成无需增加额外的图案化工艺，仅需要改变第一金属层及第二金属层的图案即可，不会增加额外的工序及人力成本。
需要说明的是，结合图6，本发明的液晶显示面板主要应用于无边框的液晶显示装置，应用时，由于金属遮光部32的遮挡，当光线要从阵列基板1的第二区域12射出时，金属遮光部32会反射该光线，阻止其射出，且金属遮光部32延伸至黑色矩阵31的下方，与黑色矩阵32配合有效保证光线的遮光效果，避免边缘漏光，提升显示品质。
请参阅图6，一种无边框液晶显示装置，包括上述的液晶显示面板。
进一步地，如图6所示，所述无边框液晶显示装置还包括设于所述阵列基板1远离所述对置基板2的一侧的背光模组4，由于金属遮光部32的遮挡，背光模组4发出光线要从阵列基板1的第二区域12射出时，金属遮光部32会反射该光线，阻止其射出，且金属遮光部32延伸至黑色矩阵31的下方，与黑色矩阵32配合有效保证光线的遮光效果，避免边缘漏光，提升显示品质。
综上所述，本发明提供一种液晶显示面板及其制作方法与无边框液晶显示装置。所述液晶显示面板包括阵列基板、与所述阵列基板相对设置的对置基板及位于阵列基板与对置基板之间液晶层；所述阵列基板包括被对置基板覆盖的第一区域及位于第一区域外侧的第二区域；所述对置基板包括第三区域及包围所述第三区域的第四区域；所述第四区域朝向阵列基板的一侧覆盖有黑色矩阵，所述阵列基板朝向对置基板的一侧设有金属遮光部；所述金属遮光部覆盖所述第二区域及与第二区域相邻的部分第一区域，且所述金属遮光部靠近所述第一区域的一侧边缘位于所述黑色矩阵下方，通过增设金属遮光部，能够解决无边框液晶显示装置的边缘漏光问题，提升显示品质。
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权利要求的保护范围。

Claims (13)

  1. 一种液晶显示面板，包括阵列基板、与所述阵列基板相对设置的对置基板及位于阵列基板与对置基板之间液晶层；
    所述阵列基板包括被对置基板覆盖的第一区域及位于第一区域外侧的第二区域；所述对置基板包括第三区域及包围所述第三区域的第四区域；
    所述第四区域朝向阵列基板的一侧覆盖有黑色矩阵，所述阵列基板朝向对置基板的一侧设有金属遮光部；
    所述金属遮光部覆盖所述第二区域及与第二区域相邻的部分第一区域，且所述金属遮光部靠近所述第一区域的一侧边缘位于所述黑色矩阵下方。
  2. 如权利要求1所述的液晶显示面板，其中，所述金属遮光部为浮空状态。
  3. 如权利要求1所述的液晶显示面板，其中，所述金属遮光部接入液晶显示面板的公共电压。
  4. 如权利要求1所述的液晶显示面板，其中，所述金属遮光部为连接不间断的平板状金属薄膜或网状金属薄膜。
  5. 一种液晶显示面板的制作方法，包括如下步骤：
    步骤S1、提供液晶显示母板，所述液晶显示母板包括间隔排列的多个液晶显示面板；
    每一个液晶显示面板均包括阵列基板、与所述阵列基板相对设置的对置基板及位于阵列基板与对置基板之间液晶层；所述阵列基板包括被对置基板覆盖的第一区域及位于第一区域外侧的第二区域；所述对置基板包括第三区域及包围所述第三区域的第四区域；
    所述第四区域朝向阵列基板的一侧覆盖有黑色矩阵，所述阵列基板朝向对置基板的一侧设有金属遮光部；
    步骤S2、沿所述第二区域远离第一区域的一侧边缘设置第一切割线，沿所述第四区域远离第三区域的一侧边缘设置第二切割线，所述金属遮光部远离第一区域的一侧边缘超出所述第一切割线；
    步骤S3、沿所述第一切割线及第二切割线对所述液晶显示母板进行切割，得到数个液晶显示面板；
    步骤S4、分别沿预设的第一切割线及第二切割线切割所述液晶显示母板，得到数个液晶显示面板；切割后，各个液晶显示面板中的金属遮光部超出所述第一切割线的部分被去除，剩余的金属遮光部覆盖所述第二区域及与第二区域相邻的部分第一区域，且所述金属遮光部靠近所述第一区域的一侧边缘位于所述黑色矩阵下方。
  6. 如权利要求5所述的液晶显示面板的制作方法，其中，所述步骤S2中，所述金属遮光部远离第一区域的一侧边缘及靠近第一区域的一侧边缘与第一切割线之间的距离均大于100um。
  7. 如权利要求5所述的液晶显示面板的制作方法，其中，所述金属遮光部为浮空状态。
  8. 如权利要求5所述的液晶显示面板的制作方法，其中，所述金属遮光部接入液晶显示面板的公共电压。
  9. 如权利要求5所述的液晶显示面板的制作方法，其中，所述金属遮光部为连接不间断的平板状金属薄膜或网状金属薄膜。
  10. 一种无边框液晶显示装置，包括液晶显示面板；
    所述液晶显示面板包括阵列基板、与所述阵列基板相对设置的对置基板及位于阵列基板与对置基板之间液晶层；
    所述阵列基板包括被对置基板覆盖的第一区域及位于第一区域外侧的第二区域；所述对置基板包括第三区域及包围所述第三区域的第四区域；
    所述第四区域朝向阵列基板的一侧覆盖有黑色矩阵，所述阵列基板朝向对置基板的一侧设有金属遮光部；
    所述金属遮光部覆盖所述第二区域及与第二区域相邻的部分第一区域，且所述金属遮光部靠近所述第一区域的一侧边缘位于所述黑色矩阵下方。
  11. 如权利要求10所述的无边框液晶显示装置，其中，所述金属遮光部为浮空状态。
  12. 如权利要求10所述的无边框液晶显示装置，其中，所述金属遮光部接入液晶显示面板的公共电压。
  13. 如权利要求10所述的无边框液晶显示装置，其中，所述金属遮光部为连接不间断的平板状金属薄膜或网状金属薄膜。
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