WO2018196233A1 - 液晶显示面板及其液晶显示装置 - Google Patents

液晶显示面板及其液晶显示装置 Download PDF

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Publication number
WO2018196233A1
WO2018196233A1 PCT/CN2017/097494 CN2017097494W WO2018196233A1 WO 2018196233 A1 WO2018196233 A1 WO 2018196233A1 CN 2017097494 W CN2017097494 W CN 2017097494W WO 2018196233 A1 WO2018196233 A1 WO 2018196233A1
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WIPO (PCT)
Prior art keywords
substrate
light shielding
liquid crystal
shielding layer
crystal display
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PCT/CN2017/097494
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English (en)
French (fr)
Inventor
陈猷仁
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HKC Co Ltd
Chongqing HKC Optoelectronics Technology Co Ltd
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HKC Co Ltd
Chongqing HKC Optoelectronics Technology Co Ltd
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Priority to US15/561,750 priority Critical patent/US20180307079A1/en
Publication of WO2018196233A1 publication Critical patent/WO2018196233A1/zh
Anticipated expiration legal-status Critical
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    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509Filters, e.g. light shielding masks
    • G02F1/133512Light shielding layers, e.g. black matrix
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1339Gaskets; Spacers; Sealing of cells
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362Active matrix addressed cells
    • G02F1/136286Wiring, e.g. gate line, drain line
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362Active matrix addressed cells
    • G02F1/136222Colour filters incorporated in the active matrix substrate

Definitions

  • the present application relates to a liquid crystal display panel and a liquid crystal display device thereof, and more particularly to a process design of a color filter film applied to a transistor array by a black matrix and a light shielding layer of a pad layer.
  • the TFT-LCD Thin Film Transistor-Liquid Crystal Display
  • CF color filter substrate
  • TFT Thin Film Transistor
  • Liquid crystal Liquid Crystal
  • Sealant frame sealant
  • Transistor array liquid crystal display In Plane Switch
  • vertical alignment Vertical Alignment
  • the in-plane switching mode is the liquid crystal horizontal alignment, and the liquid crystal molecules are rotated in the parallel state during operation.
  • Imaging vertical alignment mode is the vertical alignment of the liquid crystal.
  • the liquid crystal molecules are perpendicular to the two substrates of the screen.
  • the power is applied, the liquid crystal molecules fall down and form a certain angle with the substrate.
  • the common electrode signal of a generally vertical alignment mode liquid crystal cell needs to be guided from the second substrate to the common electrode of the first substrate by means of a transfer pad.
  • the common electrode needs to be formed before the light shielding layer, so there is a risk of incomplete curing of the sealant at the transfer pad, and the common electrode of the first substrate and the second substrate cannot be used by Indium tin oxide is turned on.
  • a liquid crystal display panel comprising:
  • the light shielding layer is formed on the common electrode and located on a frame area of the first substrate, the light shielding layer has an opening to expose the public electrode;
  • the second substrate disposed opposite to the first substrate, wherein the second substrate is provided with a plurality of active switches, a plurality of color resists, transparent electrodes and signal lines, and the plurality of color resistors are formed on the active switch
  • the transparent electrode is formed on the plurality of color resistors and electrically connected to the active switch, and the plurality of color resists of the signal lines and portions are located on a frame area of the second substrate
  • the color resist located on the frame region of the second substrate has a through hole to expose the signal line such that the transparent electrode contacts The signal line;
  • a sealant is formed on the frame region for sealingly bonding the first substrate and the second substrate, wherein the sealant is provided with a conductive metal ball to connect the first substrate a common electrode and the transparent electrode of the second substrate;
  • the signal line has a hollow structure, and the layout shape of the signal line is complementary to the shape of the opening layout of the light shielding layer in the frame portion.
  • the light shielding layer corresponding to the transfer pad has a light transmissive area and a light shielding area ratio of between 0.5 and 1.5.
  • the light shielding layer is a central annular structure.
  • the light shielding layer is a mesh structure.
  • the light shielding layer is a fan-shaped structure.
  • the light shielding layer is an interlaced checkerboard structure.
  • the light shielding layer is an interlaced sawtooth structure.
  • the light shielding layer is a circular mesh structure.
  • a signal line is provided as a electrode contact on a portion of the frame portion inside the second substrate, and is connected to the transfer pad above it.
  • the signal line has a hollow structure, and a layout shape of the signal line is complementary to a layout shape of the light shielding layer in a frame portion, and the signal line is provided with a blue resistance. Red resistance, or stack blue resistance and red resistance.
  • the light transmission area and the light shielding area ratio of the signal line are between 0.5 and 1.5.
  • the present application further provides a liquid crystal display device, which comprises a liquid crystal display panel according to any of the foregoing technical solutions, in addition to the backlight module.
  • the light shielding layer on the first substrate is a hollow structure, and a light transmission area to a light shielding area ratio is between 0.5 and 1.5.
  • the light shielding layer is a central annular structure.
  • the light shielding layer is a mesh structure or a fan structure.
  • the light shielding layer is an interlaced checkerboard structure.
  • the light shielding layer is an interlaced sawtooth structure.
  • the light shielding layer is a circular mesh structure.
  • the signal line is provided with a blue resistance, a red resistance, or a stacked blue resistance and a red resistance.
  • the light transmission area and the light shielding area ratio of the signal line are between 0.5 and 1.5.
  • the black matrix and the underlayer are integrally formed on the first substrate in the same process using the same material; wherein the light shielding layer is located under the common electrode.
  • the light shielding layer corresponding to the transfer pad is a hollow structure, and further, the light shielding layer corresponding to the transfer pad has a light transmission area and a light shielding area ratio of 0.5 to 1.5. between.
  • the method for fabricating the liquid crystal display panel further includes the following steps:
  • a signal line is disposed on a portion of the frame region inside the second substrate when the electrode contact is connected to the transfer pad;
  • the signal line has a hollow structure, and the layout shape of the signal line is complementary to the layout shape of the light shielding layer in the frame portion.
  • the present application provides another liquid crystal display panel, including:
  • the light shielding layer is formed on the common electrode and located on a frame area of the first substrate, the light shielding layer has an opening to expose the public electrode;
  • the second substrate disposed opposite to the first substrate, wherein the second substrate is provided with a plurality of active switches, a plurality of color resists, transparent electrodes and signal lines, and the plurality of color resistors are formed on the active switch
  • the transparent electrode is formed on the plurality of color resistors and electrically connected to the active switch, and the plurality of color resists of the signal lines and portions are located on a frame area of the second substrate
  • the color resistance on the frame region of the second substrate has a through hole to expose the signal line such that the transparent electrode contacts the signal line;
  • a sealant is formed on the frame region for sealingly bonding the first substrate and the second substrate, wherein the sealant is provided with a conductive metal ball to connect the first substrate a common electrode and the transparent electrode of the second substrate;
  • the signal line has a hollow structure, and a layout shape of the signal line is complementary to a shape of an opening layout of the light shielding layer in the frame portion;
  • the light shielding layer on the first substrate is a hollow structure, and the ratio of the light transmission area to the light shielding area is between 0.5 and 1.5; and the ratio of the light transmission area to the light shielding area of the signal line is between 0.5 and 1.5. .
  • the same material can be used for the black matrix and the underlayer to simplify the color film process, but it is applied to the vertical alignment liquid crystal display panel in the liquid crystal At the common electrode contact of the panel segment process, a structural change is required, and a blue resistance, a red resistance, or a blue resistance and a red resistance are disposed on the metal of the second substrate to compensate for the hollow portion of the light shielding layer. The resulting light leakage may increase the optical density value.
  • the application does not additionally increase the cost of the liquid crystal panel process, and can effectively prevent the risk of light leakage at the rear edge of the module.
  • FIG. 1 is a schematic structural view of a liquid crystal display panel of the present application.
  • FIG. 2 is a schematic structural view of a frame area of a liquid crystal display panel of the present application.
  • the word “comprising” is to be understood to include the component, but does not exclude any other component.
  • “on” means located above or below the target component, and does not mean that it must be on the top based on the direction of gravity.
  • the liquid crystal display panel and the liquid crystal display device thereof proposed by the present application have a specific embodiment and structure. , features and efficacy, as detailed below.
  • the color resist includes a body portion and an extension portion, and the color resistance of the display region is used to present a plurality of colors, and the color resistance of the frame region is used to compensate for the hollow portion of the light shielding layer. Light leakage may increase the optical density value.
  • the black matrix and the pad layer on the first substrate are integrally formed on the first substrate by the same material in the same process; wherein the light shielding layer is located under the common electrode.
  • FIG. 1 it is a schematic diagram of a liquid crystal display panel of the present application, as shown in FIG. 2 , which is a schematic structural diagram of a frame area of a liquid crystal display panel of the present application.
  • a liquid crystal display panel includes: a first substrate 101 and a second substrate 107.
  • a common electrode 102 is disposed inside the first substrate 101, and the light shielding layer 103 is a black matrix and The pad layer is formed on the common electrode 102 by the same process in the same process, and the common electrode 102 is disposed inside the second substrate 107.
  • the portion of the frame portion serves as an adapter pad, and the light shielding layer 103 corresponding to the adapter pad is designed to have an opening in the frame portion, and has a hollow structure, and the ratio of the light transmission area to the light shielding area is between 0.5 and 1.5.
  • the ratio of the light transmissive area to the light blocking area may be between 0.7 and 1.1.
  • the first substrate 101 is provided with a common electrode 102 and a light shielding layer 103.
  • the light shielding layer 103 is formed on the common electrode 102 and is located on the frame area of the first substrate 101.
  • the light shielding layer 103 may have an opening.
  • the common electrode 102 is exposed.
  • the second substrate 107 is disposed opposite to the first substrate 101.
  • the second substrate 107 is provided with a plurality of active switches 201, a plurality of color resistors 105, transparent electrodes 202 and signal lines 106, and the plurality of color resistors 105.
  • the transparent electrode 202 is formed on the plurality of color resistors 105, and is electrically connected to the active switch 201, the signal lines 106 and portions of the plurality of colors
  • the photoresist 105 is located on the frame region of the second substrate 107, and the color resist 105 located on the frame region of the second substrate has a through hole to expose the signal line 106 such that the transparent electrode 202 Contacting the signal line.
  • the liquid crystal layer is interposed between the first substrate 101 and the second substrate 107.
  • the sealant 104 is formed on the frame region for sealingly bonding the first substrate 101 and the second substrate 107.
  • the frame sealant 104 is provided with a conductive metal ball 109 for electrical properties.
  • the common electrode 102 of the first substrate 101 and the transparent electrode 202 of the second substrate 107 are connected.
  • the signal line 106 may have a hollow structure, and the layout shape of the signal line 106 is complementary to the shape of the opening layout of the light shielding layer 103 in the frame portion to avoid light leakage.
  • the liquid crystal display panel of the present application may be a curved liquid crystal display panel.
  • a signal line 106 is disposed on the inner side of the second substrate 107.
  • the signal line 106 is designed as an opening, and there is a hollow structure.
  • the layout shape of the signal line 106 and the light shielding layer 103 are in the frame area.
  • the layout shape of the part is complementary, and the ratio of the light transmission area to the light shielding area is between 0.5 and 1.5.
  • the signal line has a blue resistance, a red resistance, or a stacked blue resistance and a red resistance.
  • the color resistance 105 is set to avoid the possibility of light leakage caused by the opening design of the light shielding layer 103 on the first substrate, and is stacked on the second substrate transfer pad by the color resistance 105 to compensate for the light leakage range and improve Optical density value.
  • the conductive metal ball 109 is located above the color resistance of the second substrate and is under the hollow portion of the first substrate. Further, the ultraviolet ray 108 is selectively irradiated on the side of the second substrate 107 to cure the sealant 104.
  • the light shielding layer of the first substrate is complementary to the metal portion of the second substrate in the frame portion, thereby compensating for the light leakage caused by the opening design of the light shielding layer in the frame portion. Increase the optical density value.
  • the portion of the frame area around the liquid crystal display panel adopts the light shielding layer of the present application, because the layout shape of the signal line and the layout shape of the light shielding layer in the frame portion are complementary, and the process is saved on the one hand, and the cost is reduced. On the other hand, it also compensates for the possibility of light leakage caused by the hollow portion of the light shielding layer in the frame portion.
  • the light shielding layer is a central annular structure.
  • the light shielding layer is a mesh structure.
  • the light shielding layer is a fan-shaped structure.
  • the light shielding layer is an interlaced checkerboard structure.
  • the light shielding layer is an interlaced sawtooth structure.
  • the light shielding layer is a circular mesh structure.
  • the hollow structure of the light shielding layer is a regular light transmission shape, and the ratio of the light transmission area to the light shielding area is between 0.5 and 1.5, and the design of the hollow portion can be based on the designer. Depending on the needs, there is no limit.
  • the present application is a process design for applying the light shielding layer to an RGB or WRGB matrix, particularly for a vertical alignment mode liquid crystal display panel. Since the black matrix and the underlayer use the same material and the same process, the common electrode process of the color filter substrate is adjusted from the black matrix process to the black matrix process. At the common electrode contact of the external circuit, due to the common electrode process adjustment of the color filter substrate, correspondingly, the corresponding transfer pad on the frame area of the light shielding layer needs to be structurally adjusted, and the shape of the light shielding layer in the frame portion is Designed as a regular shape with partial light transmission.
  • the metal layout shape corresponding to the second substrate is complementary to the layout shape of the light shielding layer in the frame portion. At the same time, it is possible to avoid light leakage, and the light leakage stack can be compensated by the color resist stack at the second substrate transfer pad.
  • the present application further provides a liquid crystal display device including the liquid crystal display panel of the above embodiment in addition to the backlight module.
  • the signal line has a hollow structure, and the layout shape of the signal line is complementary to the layout shape of the light shielding layer in the frame portion, and the light transmission area and the light shielding area ratio of the signal line are between 0.5 and 1.5.

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  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
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Abstract

一种液晶显示面板及液晶显示装置,液晶显示面板包括第一基板(101)和第二基板(107),第一基板(101)内侧设置有公共电极(102),黑矩阵和垫层使用同一种材料,一体成型在公共电极(102)上,第二基板(107)内侧设有转接垫,与转接垫对应的遮光层(103)存在镂空结构。在第二基板(107)内侧设有信号线(106)当作电极接点与转接垫连接。信号线(106)的布局形状与遮光层(103)在边框区部分的布局形状为互补关系。

Description

液晶显示面板及其液晶显示装置 技术领域
本申请涉及一种液晶显示面板及其液晶显示装置,尤其涉及黑矩阵和垫层的遮光层应用于晶体管阵列上的彩色滤光膜工艺设计。
背景技术
晶体管阵列液晶显示器(TFT-LCD,Thin Film Transistor-Liquid Crystal Display)由彩膜基板(CF,Color Filter)、晶体管阵列基板(TFT,Thin Film Transistor)、夹于彩膜基板与晶体管阵列基板之间的液晶(LC,Liquid Crystal)及封框胶(Sealant)组成。
晶体管阵列液晶显示器分面内切换(IPS,In Plane Switch)和垂直配向(VA,Vertical Alignment)两种显示模式:面内切换模式是液晶水平配向,工作时液晶分子在和平行状态下旋转方式显示成像;垂直配向模式是液晶垂直配向,不加电压时液晶分子垂直于屏的两块基板,加电时液晶分子倒下和基板成一定角度。
现在,在晶体管阵列上的彩色滤光膜(COA,Color on Array)技术因具有高穿透低成本的优势,成为各家厂商开发技术主流。延续晶体管阵列上的彩色滤光膜设计,在节省工艺成本上,也有厂商开发黑矩阵(BM,Black Matrix)和垫层(PS,Photo Spacer)一体成型的材料。不过此型材料光学浓度值低,局部地方需借助色阻堆叠的效果来帮助遮光。
但所述遮光层应用在具有晶体管阵列上的彩色滤光膜技术的垂直配向模式液晶显示面板产品时,仍存在一些待克服的问题。一般垂直配向模式液晶盒的公共电极信号需要借助转接垫(Transfer Pad)将信号由第二基板导至第一基板的公共电极。但在所述遮光层应用上,需要将公共电极做在所述遮光层之前,因此转接垫处有框胶固化不完全的风险,并造成第一基板与第二基板的公共电极无法藉由氧化铟锡导通。
发明内容
为解决上述技术问题,本申请采用的技术方案是:一种液晶显示面板,包括:
第一基板,设有公共电极及遮光层,所述遮光层是形成于所述公共电极上,并位于所述第一基板的边框区上,所述遮光层具有开口,以暴露出所述公共电极;
第二基板,与所述第一基板相对设置,其中所述第二基板设有多个主动开关、多个色阻、透明电极及信号线,所述多个色阻形成于所述主动开关上,所述透明电极是形成于所述多个色阻上,并电性连接于所述主动开关,所述信号线及部分的所述多个色阻是位于所述第二基板的边框区上,位于所述第二基板的边框区上的所述色阻具有通孔,以暴露出所述信号线,使得所述透明电极接触于 所述信号线;
液晶层,夹设于所述第一基板与所述第二基板之间;
封框胶,形成于所述边框区上,用于密封粘接所述第一基板与所述第二基板,所述封框胶设有导电金属球,以连接所述第一基板的所述公共电极及所述第二基板的所述透明电极;
其中,所述信号线具有镂空结构,所述信号线的布局形状与所述遮光层在所述边框区部分的开口布局形状为互补关系。
在本申请的一实施例中,与转接垫对应的所述遮光层,其透光面积与遮光面积比介于0.5~1.5之间。
在本申请的一实施例中,所述遮光层为中心环形结构。
在本申请的一实施例中,所述遮光层为网状结构。
在本申请的一实施例中,所述遮光层为扇形结构。
在本申请的一实施例中,所述遮光层为交错棋盘结构。
在本申请的一实施例中,所述遮光层为交错锯齿结构。
在本申请的一实施例中,所述遮光层为圆形网状结构。
在本申请的一实施例中,在第二基板内侧的边框区部分设有信号线当电极接点,与在其上方的转接垫连接。
在本申请的一实施例中,所述信号线存在镂空结构,所述信号线的布局形状与所述遮光层在边框区部分的布局形状为互补关系,所述信号线设有蓝色阻,红色阻,或者堆叠蓝色阻和红色阻。在本申请的一实施例中,所述信号线的透光面积与遮光面积比介于0.5至1.5之间。
本申请更提供一种液晶显示装置,除包括背光模块外,还包括先前所述的任意一项技术方案的液晶显示面板。
在本申请的一实施例中,位于第一基板的所述遮光层为镂空结构,其透光面积与遮光面积比介于0.5至1.5之间。
在本申请的一实施例中,所述遮光层为中心环形结构。
在本申请的一实施例中,所述遮光层为网状结构或扇形结构。
在本申请的一实施例中,所述遮光层为交错棋盘结构。
在本申请的一实施例中,所述遮光层为交错锯齿结构。
在本申请的一实施例中,所述遮光层为圆形网状结构。
在本申请的一实施例中,所述信号线设有蓝色阻,红色阻,或者堆叠蓝色阻和红色阻。
在本申请的一实施例中,所述信号线的透光面积与遮光面积比介于0.5至1.5之间。
为解决上述技术问题,本申请采用的另一种技术方案为一种液晶显示面板的制作方法,包括如下步骤:
提供第一基板及第二基板;
形成液晶层于所述第一基板及第二基板之间;
第一基板内侧铺设公共电极;
黑矩阵和垫层使用同一种材料,以同一道工艺,一体成型在第一基板;其中,所述遮光层位于公共电极之下。
在本申请的一实施例中,所述与转接垫对应的遮光层为镂空结构,进一步的,所述与转接垫对应的遮光层,其透光面积与遮光面积比介于0.5~1.5之间。
在本申请的一实施例中,所述液晶显示面板的制作方法还包括以下步骤:
在第二基板内侧的边框区部分设置信号线当电极接点与转接垫连接;
在所述信号线设置蓝色阻,红色阻,或者堆叠蓝色阻和红色阻;
在本申请的一实施例中,所述信号线存在镂空结构,所述信号线的布局形状与所述遮光层在边框区部分的布局形状为互补关系。
本申请提供另一种液晶显示面板,包括:
第一基板,设有公共电极及遮光层,所述遮光层是形成于所述公共电极上,并位于所述第一基板的边框区上,所述遮光层具有开口,以暴露出所述公共电极;
第二基板,与所述第一基板相对设置,其中所述第二基板设有多个主动开关、多个色阻、透明电极及信号线,所述多个色阻形成于所述主动开关上,所述透明电极是形成于所述多个色阻上,并电性连接于所述主动开关,所述信号线及部分的所述多个色阻是位于所述第二基板的边框区上,位于所述第二基板的边框区上的所述色阻具有通孔,以暴露出所述信号线,使得所述透明电极接触于所述信号线;
液晶层,夹设于所述第一基板与所述第二基板之间;
封框胶,形成于所述边框区上,用于密封粘接所述第一基板与所述第二基板,所述封框胶设有导电金属球,以连接所述第一基板的所述公共电极及所述第二基板的所述透明电极;
其中,所述信号线具有镂空结构,所述信号线的布局形状与所述遮光层在所述边框区部分的开口布局形状为互补关系;
其中,位于第一基板的所述遮光层为镂空结构,其透光面积与遮光面积比介于0.5至1.5之间;所述信号线的透光面积与遮光面积比介于0.5至1.5之间。
黑矩阵和垫层使用同一种材料可简化彩膜工艺流程,但其应用于垂直配向液晶显示面板在液晶 面板段工艺的公共电极接点处,则需做结构上的改变,在第二基板的金属上设置蓝色阻、红色阻,或者堆叠蓝色阻和红色阻,以弥补所述遮光层镂空部分所致的漏光可能,提高光学浓度值。
本申请在工艺流程上,不额外增加液晶面板工艺上成本,且能有效预防模组后边缘漏光的风险。
附图说明
图1是本申请的液晶显示面板结构示意图。
图2是本申请的液晶显示面板边框区结构示意图。
具体实施方式
以下各实施例的说明是参考附加的图式,用以例示本申请可用以实施的特定实施例。本申请所提到的方向用语,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申请,而非用以限制本申请。
附图和说明被认为在本质上是示出性的,而不是限制性的。在图中,结构相似的单元是以相同标号表示。另外,为了理解和便于描述,附图中示出的每个组件的尺寸和厚度是任意示出的,但是本申请不限于此。
在附图中,为了清晰起见,夸大了层、膜、面板、区域等的厚度。在附图中,为了理解和便于描述,夸大了一些层和区域的厚度。将理解的是,当例如层、膜、区域或基底的组件被称作“在”另一组件“上”时,所述组件可以直接在所述另一组件上,或者也可以存在中间组件。
另外,在说明书中,除非明确地描述为相反的,否则词语“包括”将被理解为意指包括所述组件,但是不排除任何其它组件。此外,在说明书中,“在......上”意指位于目标组件上方或者下方,而不意指必须位于基于重力方向的顶部上。
为更进一步阐述本申请为达成预定申请目的所采取的技术手段及功效,以下结合附图及较佳实施例,对本申请提出的一种液晶显示面板及其液晶显示装置,其具体实施方式、结构、特征以及功效,详细说明如后。
在本申请的一实施例中,所述色阻包括主体部和延长部,位于显示区的色阻用于呈现多种颜色,位于边框区的色阻以弥补所述遮光层镂空部分所致的漏光可能,提高光学浓度值。
在本申请的一实施例中,所述位于第一基板的黑矩阵和垫层使用同一种材料,以同一道工艺,一体成型在第一基板;其中,所述遮光层位于公共电极之下。
如图1所示,其为本申请的液晶显示面板示意图,如图2所示,其为本申请的液晶显示面板边框区的具体结构示意图。请同时参考图1和图2,一种液晶显示面板,其包括:第一基板101和第二基板107,第一基板101内侧设置有公共电极102,所述遮光层103,其为黑矩阵和垫层使用同一种材料,以同一道工艺,一体成型在公共电极102上,第二基板107内侧设有公共电极102,其 在边框区部分作为转接垫,与转接垫对应的所述遮光层103在边框区部分做开口设计,存在镂空结构,其透光面积与遮光面积比介于0.5~1.5之间。
在一实施例中,透光面积与遮光面积比可介于0.7~1.1之间。
第一基板101设有公共电极102及遮光层103,所述遮光层103是形成于公共电极102上,并位于所述第一基板101的边框区上,所述遮光层103可具有开口,以暴露出所述公共电极102。
第二基板107与所述第一基板101相对设置,其中所述第二基板107设有多个主动开关201、多个色阻105、透明电极202及信号线106,所述多个色阻105形成于所述主动开关201上,所述透明电极202是形成于所述多个色阻105上,并电性连接于所述主动开关201,所述信号线106及部分的所述多个色阻105是位于所述第二基板107的边框区上,位于所述第二基板的边框区上的所述色阻105具有通孔,以暴露出所述信号线106,使得所述透明电极202接触于所述信号线。其中,液晶层是夹设于所述第一基板101与所述第二基板107之间。
封框胶104是形成于所述边框区上,用于密封粘接所述第一基板101与所述第二基板107,所述封框胶104内设有导电金属球109,用于电性连接所述第一基板101的所述公共电极102及所述第二基板107的所述透明电极202。
在各实施例中,所述信号线106可具有镂空结构,所述信号线106的布局形状与所述遮光层103在所述边框区部分的开口布局形状为互补关系,以避免漏光。
在一实施例中,本申请的液晶显示面板可为一曲面型液晶显示面板。
在第二基板107内侧的边框区部分设有信号线106当电极接点与转接垫连接,信号线106做开口设计,存在镂空结构,信号线106的布局形状与所述遮光层103在边框区部分的布局形状为互补关系,透光面积与遮光面积比介于0.5~1.5之间。信号线设有蓝色阻、红色阻,或者堆叠蓝色阻和红色阻。设置色阻105是为了避免因位于第一基板所述遮光层103在边框区部分做开口设计所致的漏光可能,在第二基板转接垫处借助色阻105堆叠,来弥补漏光范围,提高光学浓度值。导电金属球109位于第二基板色阻的上面,并处于第一基板所述遮光层镂空部分的下面。此外,紫外线108选择在第二基板107侧照射,固化框胶104。
在本申请的一实施例中,所述第一基板的遮光层在边框区部分与第二基板的金属部分互补结合,弥补了所述遮光层在边框区部分做开口设计所致的漏光可能,提高光学浓度值。
液晶显示面板四周的边框区部分采用本申请的遮光层,因所述信号线的布局形状与所述遮光层在边框区部分的布局形状为互补关系,一方面在工艺上节省工序,降低成本,另一方面也弥补了所述遮光层在边框区部分的镂空部分所致的漏光可能。
在本申请的一实施例中,所述遮光层为中心环形结构。
在本申请的一实施例中,所述遮光层为网状结构。
在本申请的一实施例中,所述遮光层为扇形结构。
在本申请的一实施例中,所述遮光层为交错棋盘结构。
在本申请的一实施例中,所述遮光层为交错锯齿结构。
在本申请的一实施例中,所述遮光层为圆形网状结构。
在本申请的一实施例中,所述遮光层的镂空结构为规则状的透光形状,其透光面积与遮光面积比均介于0.5~1.5之间,镂空部分的设计造型可根据设计人员的需求而定,不加以限制。
本申请是将所述遮光层应用于RGB或WRGB矩阵的工艺设计,特别针对垂直配向模式的液晶显示面板。由于黑矩阵和垫层使用同一种材料和同一道工艺,因此将彩膜基板的公共电极工艺由黑矩阵工艺后调整至黑矩阵工艺前。在外部电路公共电极接点处因彩膜基板的公共电极工艺调整,相应的,需将所述遮光层边框区上对应的转接垫处做结构调整,将所述遮光层在边框区部分的形状设计成局部透光的规则形状。相对应第二基板的金属布局形状与所述遮光层在边框区部分的布局形状为互补关系。同时避免漏光可能,在第二基板转接垫处借助色阻堆叠来弥补漏光范围。
本申请更提供一种液晶显示装置,除包括背光模块外,还包括上述实施方案的液晶显示面板。所述信号线存在镂空结构,信号线的布局形状与所述遮光层在边框区部分的布局形状为互补关系,信号线的透光面积与遮光面积比介于0.5~1.5之间。
以上所述实施例仅是为充分说明本申请而所举的较佳的实施例,本申请的保护范围不限于此。本技术领域的技术人员在本申请基础上所作的等同替代或变换,均在本申请的保护范围之内。本申请的保护范围以权利要求书为准。

Claims (20)

  1. 一种液晶显示面板,包括:
    第一基板,设有公共电极及遮光层,所述遮光层是形成于所述公共电极上,并位于所述第一基板的边框区上,所述遮光层具有开口,以暴露出所述公共电极;
    第二基板,与所述第一基板相对设置,其中所述第二基板设有多个主动开关、多个色阻、透明电极及信号线,所述多个色阻形成于所述主动开关上,所述透明电极是形成于所述多个色阻上,并电性连接于所述主动开关,所述信号线及部分的所述多个色阻是位于所述第二基板的边框区上,位于所述第二基板的边框区上的所述色阻具有通孔,以暴露出所述信号线,使得所述透明电极接触于所述信号线;
    液晶层,夹设于所述第一基板与所述第二基板之间;
    封框胶,形成于所述边框区上,用于密封粘接所述第一基板与所述第二基板,所述封框胶设有导电金属球,以连接所述第一基板的所述公共电极及所述第二基板的所述透明电极;
    其中,所述信号线具有镂空结构,所述信号线的布局形状与所述遮光层在所述边框区部分的开口布局形状为互补关系。
  2. 如权利要求1所述的液晶显示面板,其中,位于第一基板的所述遮光层为镂空结构,其透光面积与遮光面积比介于0.5至1.5之间。
  3. 如权利要求1所述的液晶显示面板,其中,所述遮光层为中心环形结构。
  4. 如权利要求1所述的液晶显示面板,其中,所述遮光层为网状结构。
  5. 如权利要求1所述的液晶显示面板,其中,所述遮光层为扇形结构。
  6. 如权利要求1所述的液晶显示面板,其中,所述遮光层为交错棋盘结构。
  7. 如权利要求1所述的液晶显示面板,其中,所述遮光层为交错锯齿结构。
  8. 如权利要求1所述的液晶显示面板,其中,所述遮光层为圆形网状结构。
  9. 如权利要求1所述的液晶显示面板,其中,所述信号线设有蓝色阻,红色阻,或者堆叠蓝色阻和红色阻。
  10. 如权利要求1所述的液晶显示面板,其中,所述信号线的透光面积与遮光面积比介于0.5至1.5之间。
  11. 一种液晶显示装置,包括:
    背光模块;及
    液晶显示面板,包括:
    第一基板,设有公共电极及遮光层,所述遮光层是形成于所述公共电极上,并位于所述第一 基板的边框区上,所述遮光层具有开口,以暴露出所述公共电极;
    第二基板,与所述第一基板相对设置,其中所述第二基板设有多个主动开关、多个色阻、透明电极及信号线,所述多个色阻形成于所述主动开关上,所述透明电极是形成于所述多个色阻上,并电性连接于所述主动开关,所述信号线及部分的所述多个色阻是位于所述第二基板的边框区上,位于所述第二基板的边框区上的所述色阻具有通孔,以暴露出所述信号线,使得所述透明电极接触于所述信号线;
    液晶层,夹设于所述第一基板与所述第二基板之间;
    封框胶,形成于所述边框区上,用于密封粘接所述第一基板与所述第二基板,所述封框胶设有导电金属球,以连接所述第一基板的所述公共电极及所述第二基板的所述透明电极;
    其中,所述信号线具有镂空结构,所述信号线的布局形状与所述遮光层在所述边框区部分的开口布局形状为互补关系。
  12. 如权利要求11所述的液晶显示装置,其中,位于第一基板的所述遮光层为镂空结构,其透光面积与遮光面积比介于0.5至1.5之间。
  13. 如权利要求11所述的液晶显示装置,其中,所述遮光层为中心环形结构。
  14. 如权利要求11所述的液晶显示装置,其中,所述遮光层为网状结构或扇形结构。
  15. 如权利要求11所述的液晶显示装置,其中,所述遮光层为交错棋盘结构。
  16. 如权利要求11所述的液晶显示装置,其中,所述遮光层为交错锯齿结构。
  17. 如权利要求11所述的液晶显示装置,其中,所述遮光层为圆形网状结构。
  18. 如权利要求11所述的液晶显示装置,其中,所述信号线设有蓝色阻,红色阻,或者堆叠蓝色阻和红色阻。
  19. 如权利要求11所述的液晶显示装置,其中,所述信号线的透光面积与遮光面积比介于0.5至1.5之间。
  20. 一种液晶显示面板,包括:
    第一基板,设有公共电极及遮光层,所述遮光层是形成于所述公共电极上,并位于所述第一基板的边框区上,所述遮光层具有开口,以暴露出所述公共电极;
    第二基板,与所述第一基板相对设置,其中所述第二基板设有多个主动开关、多个色阻、透明电极及信号线,所述多个色阻形成于所述主动开关上,所述透明电极是形成于所述多个色阻上,并电性连接于所述主动开关,所述信号线及部分的所述多个色阻是位于所述第二基板的边框区上,位于所述第二基板的边框区上的所述色阻具有通孔,以暴露出所述信号线,使得所述透明电极接触于所述信号线;
    液晶层,夹设于所述第一基板与所述第二基板之间;
    封框胶,形成于所述边框区上,用于密封粘接所述第一基板与所述第二基板,所述封框胶设有导电金属球,以连接所述第一基板的所述公共电极及所述第二基板的所述透明电极;
    其中,所述信号线具有镂空结构,所述信号线的布局形状与所述遮光层在所述边框区部分的开口布局形状为互补关系;
    其中,位于第一基板的所述遮光层为镂空结构,其透光面积与遮光面积比介于0.5至1.5之间;所述信号线的透光面积与遮光面积比介于0.5至1.5之间。
PCT/CN2017/097494 2017-04-24 2017-08-15 液晶显示面板及其液晶显示装置 Ceased WO2018196233A1 (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111882988A (zh) * 2020-07-31 2020-11-03 北海惠科光电技术有限公司 一种显示面板、显示面板的制作方法和显示装置

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106990593B (zh) * 2017-04-24 2020-08-11 惠科股份有限公司 液晶显示面板及其液晶显示装置
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CN111880342B (zh) * 2020-07-29 2022-09-27 北海惠科光电技术有限公司 一种显示面板、显示面板的制作方法和显示装置
CN113589570B (zh) 2021-07-23 2022-11-04 Tcl华星光电技术有限公司 显示面板及液晶显示装置
WO2023115507A1 (zh) * 2021-12-24 2023-06-29 京东方科技集团股份有限公司 显示基板及其制备方法、显示面板、显示装置
CN115206256B (zh) * 2022-06-29 2023-07-18 惠科股份有限公司 柔性液晶显示面板及其驱动方法
CN117915731B (zh) * 2024-03-20 2024-06-07 惠科股份有限公司 显示面板和显示装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20070116511A (ko) * 2006-06-05 2007-12-10 엘지.필립스 엘시디 주식회사 액정표시장치 및 그 제조 방법
JP2009128473A (ja) * 2007-11-21 2009-06-11 Toshiba Matsushita Display Technology Co Ltd 基板装置
US7692754B2 (en) * 2006-06-05 2010-04-06 Lg Display Co., Ltd. Liquid crystal display and fabricating method thereof
CN102043297B (zh) * 2009-10-19 2015-07-22 三星显示有限公司 显示基板及其制造方法和具有该显示基板的显示设备
CN106990593A (zh) * 2017-04-24 2017-07-28 惠科股份有限公司 液晶显示面板及其液晶显示装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI291764B (en) * 2006-01-26 2007-12-21 Chi Mei Optoelectronics Corp Liquid crystal display device and manufacturing process thereof
KR101590759B1 (ko) * 2009-12-21 2016-02-03 엘지디스플레이 주식회사 액정표시장치 및 그 제조방법
KR102185756B1 (ko) * 2014-03-31 2020-12-03 삼성디스플레이 주식회사 표시 기판 및 이를 포함하는 액정 표시 장치
CN104730776A (zh) * 2015-04-10 2015-06-24 重庆京东方光电科技有限公司 一种显示面板及其制备方法、显示装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20070116511A (ko) * 2006-06-05 2007-12-10 엘지.필립스 엘시디 주식회사 액정표시장치 및 그 제조 방법
US7692754B2 (en) * 2006-06-05 2010-04-06 Lg Display Co., Ltd. Liquid crystal display and fabricating method thereof
JP2009128473A (ja) * 2007-11-21 2009-06-11 Toshiba Matsushita Display Technology Co Ltd 基板装置
CN102043297B (zh) * 2009-10-19 2015-07-22 三星显示有限公司 显示基板及其制造方法和具有该显示基板的显示设备
CN106990593A (zh) * 2017-04-24 2017-07-28 惠科股份有限公司 液晶显示面板及其液晶显示装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111882988A (zh) * 2020-07-31 2020-11-03 北海惠科光电技术有限公司 一种显示面板、显示面板的制作方法和显示装置

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