WO2022007178A1 - 显示面板 - Google Patents

显示面板 Download PDF

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Publication number
WO2022007178A1
WO2022007178A1 PCT/CN2020/114395 CN2020114395W WO2022007178A1 WO 2022007178 A1 WO2022007178 A1 WO 2022007178A1 CN 2020114395 W CN2020114395 W CN 2020114395W WO 2022007178 A1 WO2022007178 A1 WO 2022007178A1
Authority
WO
WIPO (PCT)
Prior art keywords
length
display panel
distance
metal layer
lines
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2020/114395
Other languages
English (en)
French (fr)
Inventor
曹志浩
唐维
吴咏波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan China Star Optoelectronics Technology Co Ltd
Original Assignee
Wuhan China Star Optoelectronics Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuhan China Star Optoelectronics Technology Co Ltd filed Critical Wuhan China Star Optoelectronics Technology Co Ltd
Priority to US17/048,775 priority Critical patent/US11881147B2/en
Publication of WO2022007178A1 publication Critical patent/WO2022007178A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/2092—Details of a display terminals using a flat panel, the details relating to the control arrangement of the display terminal and to the interfaces thereto
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
    • H10D86/00—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates
    • H10D86/40—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates characterised by multiple TFTs
    • H10D86/441—Interconnections, e.g. scanning lines
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
    • H10D86/00—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates
    • H10D86/40—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates characterised by multiple TFTs
    • H10D86/60—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates characterised by multiple TFTs wherein the TFTs are in active matrices
    • 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
    • G02F1/136286—Wiring, e.g. gate line, drain line
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/02—Composition of display devices
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0404—Matrix technologies
    • G09G2300/0408—Integration of the drivers onto the display substrate
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0421—Structural details of the set of electrodes
    • G09G2300/0426—Layout of electrodes and connections
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0223—Compensation for problems related to R-C delay and attenuation in electrodes of matrix panels, e.g. in gate electrodes or on-substrate video signal electrodes

Definitions

  • the present application relates to the field of display technology, and in particular, to a display panel.
  • the A Vcom GE line is added below the scan line (the gate common connection line, the left and right ends are connected to the second metal layer through the opening of the second insulating layer), and the second metal is conducted through the opening in the second insulating layer.
  • the layer is then connected to the common electrode in the plane through the opening in the second insulating layer, so that the common electrode on the entire plane can receive the signal input from the second metal layer in a timely and uniform manner.
  • connection lines of the display panel and the scan lines are arranged in the same layer and in parallel, and the connection lines and the scan lines are both provided with raised structures for reducing impedance, and adjacent connections are
  • the protrusions between the lines and the scanning lines together form a closed space, which makes the etching solution easy to remain, resulting in excessive etching locally, resulting in disconnection, and the problem of affecting the display quality of the display panel is urgently in need of improvement.
  • connection lines of the display panel and the scan lines are arranged in the same layer and in parallel, and both the connection lines and the scan lines are provided with raised structures for reducing impedance,
  • the adjacent connection lines and the protrusions between the scan lines form a closed space together, which makes the etching solution easy to remain, causing local over-etching and disconnection, which affects the display quality of the display panel.
  • the present application provides a display panel, the display panel includes: a plurality of mutually parallel scan lines, a plurality of mutually parallel data lines, a common electrode and a plurality of connection lines;
  • the scanning line is perpendicular to the data line on different planes, and a second metal layer is also arranged in the non-display area of the same layer as the data line; the second metal layer forms a "return" shape;
  • a plurality of the connecting lines are arranged parallel to the data lines;
  • the scan lines are provided with a plurality of protruding structures at intervals along the first direction.
  • the protruding structure is divided into a first protruding structure and a second protruding structure, the first protruding structure faces the positive direction of the second direction, and the second protruding structure towards the negative direction of the second direction.
  • the distance between the first raised structures and the second raised structures is a first distance
  • the distance between adjacent first raised structures is a second distance
  • the distance between adjacent second protruding structures is also a second distance
  • the second distance is equal to twice the first distance
  • the length of the first raised structure along the first direction is a first length
  • the length of the first raised structure along the second direction is a second length
  • the length of the second raised structure along the first direction is a third length
  • the length of the second raised structure along the second direction is a fourth length; the first length is equal to the second length
  • the third length is equal to the fourth length.
  • both the first length and the second length are greater than the length of the scan line along the second direction.
  • the first direction is perpendicular to the second direction.
  • the shape of the first protruding structure and the second protruding structure is a rectangle, a circle, a triangle or a trapezoid.
  • the second metal layer parallel to the first direction is a first segment of the second metal layer
  • the second metal layer parallel to the second direction is a second segment of the second metal layer a metal layer, wherein the first segment of the second metal layer and the second segment of the second metal layer vertically intersect in the non-display area.
  • a second via hole is provided on the first segment of the second metal layer.
  • the second via connects the second metal layer of the first segment and the common electrode, that is, the second via connects the second metal layer and the common electrode.
  • connection lines are divided into: a first connection line and a second connection line; the first connection line and the scan line are arranged in the same layer, and the second connection line and the The data line is set on the same layer.
  • a first via hole is disposed between the first connection line and the second connection line, and the first via hole electrically connects the first connection line and the the second connecting line.
  • the display panel further includes: a base substrate, a buffer layer, a light shielding layer, a first insulating layer, a second insulating layer, a scan line, a first connection line, a first via hole, a first Two metal layers, a second connection line, a second connection line, a planarization layer, a second via hole, a common electrode and a passivation layer.
  • the light shielding layer is arranged in the buffer layer; the scan line, the first connection line and the first via hole are arranged in the second insulating layer; The second via hole is disposed in the planarization layer.
  • the present application also provides a display panel, the display panel includes: a plurality of mutually parallel scan lines, a plurality of mutually parallel data lines, a common electrode, and a plurality of connection lines;
  • the scan lines are perpendicular to the data lines on different planes, and a second metal layer is further provided in the non-display area of the same layer as the data lines;
  • a plurality of the connecting lines are arranged parallel to the data lines;
  • the scan lines are provided with a plurality of protruding structures at intervals along the first direction.
  • the protruding structure is divided into a first protruding structure and a second protruding structure, the first protruding structure faces the positive direction of the second direction, and the second protruding structure towards the negative direction of the second direction.
  • the distance between the first raised structures and the second raised structures is a first distance
  • the distance between adjacent first raised structures is a second distance
  • the distance between adjacent second protruding structures is also a second distance
  • the second distance is equal to twice the first distance
  • the length of the first raised structure along the first direction is a first length
  • the length of the first raised structure along the second direction is a second length
  • the length of the second raised structure along the first direction is a third length
  • the length of the second raised structure along the second direction is a fourth length; the first length is equal to the second length
  • the third length is equal to the fourth length.
  • both the first length and the second length are greater than the length of the scan line along the second direction.
  • the display panel provided by this application, the display panel comprises: a plurality of mutually parallel scan lines, a plurality of mutually parallel data lines, a common electrode and a plurality of connection lines; the scan lines and the data lines are on different planes Vertically, a second metal layer is also arranged in the non-display area of the same layer as the data line; a plurality of the connection lines are arranged parallel to the data line; the scan lines are arranged at intervals along the first direction.
  • connection lines are arranged perpendicular to the scan lines to avoid parallel arrangement of the connection lines and the scan lines, and the locations of the connection lines and the scan lines close to form a closed space, resulting in etching
  • the liquid remains in the display panel, which affects the display quality of the display panel;
  • a plurality of protruding structures are provided at intervals along the first direction on the scan lines, and the first protruding structures face the positive direction of the second direction,
  • the second protruding structures face the negative direction of the second direction, and the distance between the adjacent first protruding structures is the distance between the first protruding structures and the second protruding structures Twice the distance, so that there is basically no airtight space between the first connection line and the scan line, further reducing the possibility of etching solution remaining in the display panel, and improving the production quality of the display panel. Rate.
  • FIG. 1 is a schematic structural diagram of a conventional display panel.
  • FIG. 2 is a schematic cross-sectional view of the conventional display panel in the direction A-A.
  • FIG. 3A is a schematic structural diagram of anisotropic etching in a conventional display panel.
  • FIG. 3B is a schematic structural diagram of a conventional display panel by isotropic etching.
  • FIG. 4 is a schematic structural diagram of a display panel according to an embodiment of the present application.
  • FIG. 5 is a schematic cross-sectional view of a display panel B-B according to an embodiment of the present application.
  • first and second are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined as “first”, “second” may expressly or implicitly include one or more of said features. In the description of the present application, “plurality” means two or more, unless otherwise expressly and specifically defined.
  • the present application provides a display panel, please refer to FIG. 4 to FIG. 5 for details.
  • the A Vcom GE line is added below the scan line (the gate common connection line, the left and right ends are connected to the second metal layer through the opening of the second insulating layer), and the second metal is conducted through the opening in the second insulating layer.
  • the layer is then connected to the common electrode in the plane through the opening in the second insulating layer, so that the common electrode on the entire plane can receive the signal input from the second metal layer in a timely and uniform manner.
  • the display panel includes: a plurality of mutually parallel scan lines 141 , a plurality of mutually parallel data lines 153 , a common electrode 17 and a plurality of connection lines 142 and 152;
  • the scan line 141 is perpendicular to the data line 153, and a second metal layer 151 is also provided in the non-display area of the same layer as the data line 153;
  • a plurality of the connecting lines 142 and 152 are arranged parallel to the data lines 153;
  • the scan lines 141 are provided with a plurality of protruding structures 1411 and 1412 at intervals along the first direction (ie the X direction), that is, the display panel includes a plurality of mutually parallel
  • the protruding structures are divided into a first protruding structure 1411 and a second protruding structure 1412 , and the first protruding structure 1411 faces the positive direction of the second direction (ie, the Y direction).
  • the second protruding structure 1412 faces the negative direction of the second direction Y, the first protruding structure 1411 and the second protruding structure 1412 are both disposed on the scan line 141, which can fully reduce the The impedance on the scan line 141 is small, and the first protruding structure 1411 and the second protruding structure 1412 are arranged one above the other, which can fully reduce the impedance on the scan line 141 and avoid the The adjacent raised structures on the scan lines 141 are set closer to cause the etching solution to remain.
  • first direction X is perpendicular to the second direction Y.
  • the distance between the first protruding structures 1411 and the second protruding structures 1412 is a first distance L1 ′
  • the distance between the adjacent first protruding structures 1411 is a first distance L1 ′
  • the distance is the second distance L2'
  • the distance between the adjacent second raised structures 1412 is also the second distance L2'
  • the length of the first protruding structure 1411 along the first direction X is the first length L1
  • the length of the first protruding structure 1411 along the second direction Y is the second length L2
  • the length of the second raised structure 1412 along the first direction X is a third length L3, the length of the second raised structure 1412 along the second direction Y is a fourth length L4;
  • the first raised structures 1411 It is a rectangle with the same shape and size as the second protruding structure 1412 .
  • first length L1 and the second length L2 are both greater than the length of the scan line 141 along the second direction Y, that is, the length of the first protruding structure 1411 is greater than the length of the first protruding structure 1411 .
  • the widths of the starting structures 1412 are all larger than the widths of the scan lines 141 , which can sufficiently reduce the impedance on the scan lines 141 , thereby reducing the impedance of the entire display panel and improving the display quality of the display panel.
  • the shape of the first protruding structure 1411 and the second protruding structure 1412 is not limited to a rectangle, but can also be a circle, a triangle, a trapezoid, etc., preferably a rectangle, and the manufacturing process is the easiest.
  • the second metal layer 151 parallel to the first direction X is the second metal layer 1511 of the first segment
  • the second metal layer 151 parallel to the second direction Y is The second segment of the second metal layer 1512, the first segment of the second metal layer 1511 and the second segment of the second metal layer 1512 intersect vertically in the non-display area, that is, the lateral second metal layer 151
  • a "back" shape is formed in the non-display area with the second metal layer 151 in the vertical direction.
  • a second via hole 161 is provided on the first segment of the second metal layer 1512 . Further, the second via hole 161 communicates the second metal layer 1511 of the first segment and the common electrode 17 , that is, the second via hole 161 communicates the second metal layer 151 and the common electrode 17 . .
  • connection lines are divided into: a first connection line 142 and a second connection line 152; the first connection line 142 and the scan line 141 are arranged in the same layer, and the second connection line
  • the lines 152 and the data lines 153 are arranged on the same layer.
  • the scan line 141 and the first connection line 142 are disposed in the same layer and are perpendicular to each other.
  • the first connection line 142 is disconnected when passing through the scan line 141 and passes through the second connection line 152 Connected with the first via hole 143 , the second connection line 152 is provided in the same layer as the second metal layer 151 , and the second metal layer 151 is connected to the common electrode 17 through the second via hole 161
  • the conduction of the signal of the common electrode 17 is usually by opening a circle of planarization layer holes (ie, the second via hole 161 ) at the periphery of the display area, and connecting the common electrode 17 to the second metal layer 151 is connected to the second metal layer 151 by sending a signal to the second metal layer 151 around the second metal layer 151 into the common electrode 17 on the entire surface.
  • a first via hole 143 is disposed between the first connection line 142 and the second connection line 152 , and the first via hole 143 electrically conducts the first connection The line 142 is connected to the second connection line 152 .
  • the film layer of the display panel further includes: a base substrate 11, a buffer layer 12, a light shielding layer 121 provided in the buffer layer 12 to shield the active layer from light, a first insulating layer 13, a first insulating layer 13, Two insulating layers 14, the scan lines 141, the first connection lines 142 and the first vias 143 disposed in the second insulating layer 14, the second metal layer 151, the second The connection line 152 , the planarization layer 16 , the second via hole 161 disposed in the planarization layer 16 , the common electrode 17 and the passivation layer 18 .
  • the beneficial effects of a display panel provided by the present application are as follows: first, the display panel provided by the present application includes: a plurality of mutually parallel scan lines, a plurality of mutually parallel data lines, a common electrode, and a plurality of connecting lines; the scanning lines are perpendicular to the data lines on different planes, and a second metal layer is also arranged in the non-display area of the same layer as the data lines; a plurality of the connecting lines are parallel to the data lines
  • the scan line is provided with a plurality of protruding structures at intervals along the first direction; the connection line and the scan line are arranged perpendicularly to avoid the The position where the line is close to the scan line forms a closed space, which causes the etching solution to remain in the display panel and affects the display quality of the display panel; further, the display panel provided by the present application, the scan line along the first side A plurality of protruding structures are arranged at intervals upward, the first protruding structures face the positive direction of
  • a display panel provided by the embodiments of the present application has been described in detail above.
  • the principles and implementations of the present application are described in this article by using specific examples.
  • the descriptions of the above embodiments are only used to help understand the technical solutions of the present application. and its core idea; those of ordinary skill in the art should understand that it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements to some of the technical features; and these modifications or replacements do not make the corresponding
  • the essence of the technical solutions deviates from the scope of the technical solutions of the embodiments of the present application.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

一种显示面板及其制作方法，显示面板包括：多条相互平行的扫描线（141）、多条相互平行的数据线（153）、公共电极（17）以及多条连接线（142,152）；扫描线（141）与数据线（153）异面垂直，与数据线（153）同层的非显示区内还设置有一圈第二金属层（151）；多条连接线（142,152）均平行于数据线（153）进行设置；扫描线（141）沿第一方向（X方向）间隔设置有多个凸起结构（1411,1412）。

Description

显示面板 技术领域
本申请涉及显示技术领域，尤其涉及一种显示面板。
 背景技术
现有的中大尺寸的低温多晶硅显示面板领域，由于显示面板的尺寸比较大，横纵向距离都较大，为规避AA区（Active Area，显示区）中间与其四周出现显示不均的问题，在扫描线的下方增加设计一条Vcom GE line(栅极公共连接线，左右端通过第二绝缘层开孔与第二金属层相连)，通过在第二绝缘层中开孔导通所述第二金属层再通过在所述第二绝缘层中开孔与面内的公共电极相连，使得整面的所述公共电极均能及时均匀的接受到所述第二金属层输入的信号，在实际生产制程中，因湿蚀刻（WET，蚀刻液，化学性蚀刻）的蚀刻特性（等向性蚀刻，如下图所示，图3A为非等向性刻蚀，图3B为等向性刻蚀），PR（Photoresist，光阻）会在所述扫描线上形成光阻层帽子，蚀刻液易在两条扫描线之间残留，蚀刻后清洗无法完全去除，在有蚀刻液残留处的所述扫描线被继续蚀刻，使得所述扫描线的宽度偏细，严重的甚至可能直接导致所述扫描线断线，导致产品显示水平线异常，对面取数较少的中大尺寸而言，大大降低了产品大批量生产时的良率。
结合图1与图2可以看出，由于所述扫描线141’上设置有凸起结构1411’，所述连接线142’上设置凸起结构1421’，均用于减小阻抗，因此，在所述扫描线141’与所述连接线142’之间相当于形成了一个闭合度比较高封闭空间，在进行蚀刻时，蚀刻液容易滞留在所述扫描线141’与所述连接线142’之间的夹缝内，无法及时置换出来，导致局部蚀刻过度，形成断线，造成显示不良等问题。
因此，现有的显示面板技术中，还存在着显示面板的连接线与扫描线同层、平行设置，且连接线与扫描线上均设置有用于减小阻抗的凸起结构，相邻的连接线与扫描线之间的凸起一起围成封闭空间，使得刻蚀液易残留，造成局部蚀刻过度，形成断线，影响显示面板的显示质量的问题，急需改进。
 技术问题
本申请涉及一种显示面板，用于解决现有技术中存在着显示面板的连接线与扫描线同层、平行设置，且连接线与扫描线上均设置有用于减小阻抗的凸起结构，相邻的连接线与扫描线之间的凸起一起围成封闭空间，使得刻蚀液易残留，造成局部蚀刻过度，形成断线，影响显示面板的显示质量的问题。
 技术解决方案
为解决上述问题，本申请提供的技术方案如下：
本申请提供的一种显示面板，所述显示面板包括：多条相互平行的扫描线、多条相互平行的数据线、公共电极以及多条连接线；
所述扫描线与所述数据线异面垂直，与所述数据线同层的非显示区内还设置有一圈第二金属层；所述第二金属层形成一个“回”字型；
多条所述连接线均平行于所述数据线进行设置；
所述扫描线沿第一方向间隔设置有多个凸起结构。
根据申请提供的一种实施例，所述凸起结构分为第一凸起结构与第二凸起结构，所述第一凸起结构朝向第二方向的正方向，所述第二凸起结构朝向所述第二方向的负方向。
根据申请提供的一种实施例，所述第一凸起结构与所述第二凸起结构之间的距离为第一距离，相邻的所述第一凸起结构之间的距离为第二距离，相邻的所述第二凸起结构之间的距离也为第二距离，所述第二距离等于两倍的所述第一距离。
根据申请提供的一种实施例，所述第一凸起结构沿所述第一方向的长度为第一长度，所述第一凸起结构沿所述第二方向的长度为第二长度，所述第二凸起结构沿所述第一方向的长度为第三长度，所述第二凸起结构沿所述第二方向的长度为第四长度；所述第一长度等于所述第二长度，所述第三长度等于所述第四长度。
根据申请提供的一种实施例，所述第一长度、所述第二长度均大于所述扫描线沿所述第二方向的长度。
根据申请提供的一种实施例，所述第一方向垂直于所述第二方向。
根据申请提供的一种实施例，所述第一凸起结构与所述第二凸起结构的形状为矩形、圆形、三角形或是梯形。
根据申请提供的一种实施例，平行于所述第一方向的第二金属层为第一段第二金属层，平行于所述第二方向的所述第二金属层为第二段第二金属层，所述第一段第二金属层与所述第二段第二金属层在所述非显示区内垂直相交。
根据申请提供的一种实施例，所述第一段第二金属层上设置有第二过孔。
根据申请提供的一种实施例，所述第二过孔连通所述第一段第二金属层与所述公共电极，即所述第二过孔连通所述第二金属层与所述公共电极。
根据申请提供的一种实施例，所述连接线分为：第一连接线与第二连接线；所述第一连接线与所述扫描线同层设置，所述第二连接线与所述数据线同层设置。
根据申请提供的一种实施例，所述第一连接线与所述第二连接线之间设置有第一过孔，所述第一过孔电性导通所述第一连接线与所述第二连接线。
根据申请提供的一种实施例，所述显示面板还包括：衬底基板、缓冲层、遮光层、第一绝缘层、第二绝缘层、扫描线、第一连接线、第一过孔、第二金属层、第二连接线、第二连接线、平坦化层、第二过孔、公共电极以及钝化层。
根据申请提供的一种实施例，所述遮光层设置在所述缓冲层内；所述扫描线、所述第一连接线与所述第一过孔设置在所述第二绝缘层内；所述第二过孔设置在所述平坦化层内。
本申请还提供的一种显示面板，所述显示面板包括：多条相互平行的扫描线、多条相互平行的数据线、公共电极以及多条连接线；
所述扫描线与所述数据线异面垂直，与所述数据线同层的非显示区内还设置有一圈第二金属层；
多条所述连接线均平行于所述数据线进行设置；
所述扫描线沿第一方向间隔设置有多个凸起结构。
根据申请提供的一种实施例，所述凸起结构分为第一凸起结构与第二凸起结构，所述第一凸起结构朝向第二方向的正方向，所述第二凸起结构朝向所述第二方向的负方向。
根据申请提供的一种实施例，所述第一凸起结构与所述第二凸起结构之间的距离为第一距离，相邻的所述第一凸起结构之间的距离为第二距离，相邻的所述第二凸起结构之间的距离也为第二距离，所述第二距离等于两倍的所述第一距离。
根据申请提供的一种实施例，所述第一凸起结构沿所述第一方向的长度为第一长度，所述第一凸起结构沿所述第二方向的长度为第二长度，所述第二凸起结构沿所述第一方向的长度为第三长度，所述第二凸起结构沿所述第二方向的长度为第四长度；所述第一长度等于所述第二长度，所述第三长度等于所述第四长度。
根据申请提供的一种实施例，所述第一长度、所述第二长度均大于所述扫描线沿所述第二方向的长度。
 有益效果
与现有技术相比，本申请提供的一种显示面板的有益效果为：
1.本申请提供的显示面板，所述显示面板包括：多条相互平行的扫描线、多条相互平行的数据线、公共电极以及多条连接线；所述扫描线与所述数据线异面垂直，与所述数据线同层的非显示区内还设置有一圈第二金属层；多条所述连接线均平行于所述数据线进行设置；所述扫描线沿第一方向间隔设置有多个凸起结构；将所述连接线与所述扫描线垂直设置，避免所述连接线与所述扫描线平行设置，所述连接线与所述扫描线相近的位置形成密闭空间，导致蚀刻液残留在显示面板内，影响显示面板的显示质量；
2.进一步地，本申请提供的显示面板，在所述扫描线沿所述第一方向上间隔设置有多个凸起结构，所述第一凸起结构朝向所述第二方向的正方向，所述第二凸起结构朝向所述第二方向的负方向，且相邻的所述第一凸起结构之间的距离是所述第一凸起结构与所述第二凸起结构之间距离的两倍，使得所述第一连接线与所述扫描线之间基本无密闭空间存在，进一步减小了蚀刻液残留在所述显示面板内的可能，提高了所述显示面板的生产良率。
 附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为现有的显示面板的结构示意图。
图2为现有的显示面板中A-A方向的剖面示意图。
图3A为现有的显示面板中非等向性刻蚀的结构示意图。
图3B为现有的显示面板中等向性刻蚀的结构示意图。
图4为本申请实施例提供的显示面板的结构示意图。
图5为本申请实施例提供的显示面板B-B的剖面示意图。
 本发明的实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述。显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个所述特征。在本申请的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
本申请提供一种显示面板，具体参阅图4-图5。
现有的中大尺寸的低温多晶硅显示面板领域，由于显示面板的尺寸比较大，横纵向距离都较大，为规避AA区（Active Area，显示区）中间与其四周出现显示不均的问题，在扫描线的下方增加设计一条Vcom GE line(栅极公共连接线，左右端通过第二绝缘层开孔与第二金属层相连)，通过在第二绝缘层中开孔导通所述第二金属层再通过在所述第二绝缘层中开孔与面内的公共电极相连，使得整面的所述公共电极均能及时均匀的接受到所述第二金属层输入的信号，在实际生产制程中，因湿蚀刻（WET，蚀刻液，化学性蚀刻）的蚀刻特性（等向性蚀刻），PR（Photoresist，光阻）会在所述扫描线上形成光阻层帽子，蚀刻液易在两条扫描线之间残留，蚀刻后清洗无法完全去除，在有蚀刻液残留处的所述扫描线被继续蚀刻，使得所述扫描线的宽度偏细，严重的甚至可能直接导致所述扫描线断线，导致产品显示水平线异常，对面取数较少的中大尺寸而言，大大降低了产品大批量生产时的良率。因此，本申请提供一种显示面板以解决上述问题。
参阅图4，为本申请提供的一种显示面板的结构示意图，所述显示面板包括：多条相互平行的扫描线141、多条相互平行的数据线153、公共电极17以及多条连接线142和152；所述扫描线141与所述数据线153异面垂直，与所述数据线153同层的非显示区内还设置有一圈第二金属层151；多条所述连接线142和152均平行于所述数据线153进行设置；所述扫描线141沿第一方向（即X方向）间隔设置有多个凸起结构1411和1412，即在所述显示面板内包括多条相互平行的所述数据线153，多条相互平行的扫描线141，多条平行于所述数据线153的连接线142和152以及整面形成的公共电极17，所述数据线153与所述扫描线141异面垂直，所述非显示区内还设置有所述第二金属层151，所述第二金属层151与所述数据线153同层设置，通过所述连接线142和152连通所述扫描线141，所述第二金属层151形成一个“回”字型。
在申请的一种实施例中，所述凸起结构分为第一凸起结构1411与第二凸起结构1412，所述第一凸起结构1411朝向第二方向（即Y方向）的正方向，所述第二凸起结构1412朝向所述第二方向Y的负方向，所述第一凸起结构1411与所述第二凸起结构1412均设置在所述扫描线141上，可以充分减小所述扫描线141上的阻抗，且所述第一凸起结构1411与所述第二凸起结构1412一上一下设置，充分减小所述扫描线141上阻抗的同时还可以避免所述扫描线141上的相邻的凸起结构设置较近造成蚀刻液残留。
进一步地，所述第一方向X垂直于所述第二方向Y。
在申请的一种实施例中，所述第一凸起结构1411与所述第二凸起结构1412之间的距离为第一距离L1’，相邻的所述第一凸起结构1411之间的距离为第二距离L2’，相邻的所述第二凸起结构1412之间的距离也为第二距离L2’，所述第二距离L2’等于两倍的所述第一距离L2’，即L1’=2L2’。
进一步地，所述第一凸起结构1411沿所述第一方向X的长度为第一长度L1，所述第一凸起结构1411沿所述第二方向Y的长度为第二长度L2，所述第二凸起结构1412沿所述第一方向X的长度为第三长度L3，所述第二凸起结构1412沿所述第二方向Y的长度为第四长度L4；所述第一长度L1等于所述第三长度L3（即L1=L3），所述第二长度L2等于所述第四长度L4（即L2=L4），即所述第一凸起结构1411的长度等于所述第二凸起结构1412的长度（即L1=L3），所述第一凸起结构1411的宽度等于所述第二凸起结构1412的宽度（即L2=L4），所述第一凸起结构1411与所述第二凸起结构1412为形状和大小均相同的矩形。
进一步地，所述第一长度L1、所述第二长度L2均大于所述扫描线141沿所述第二方向Y的长度，即所述第一凸起结构1411的长度与所述第一凸起结构1412的宽度均大于所述扫描线141的宽度，可以充分减小所述扫描线141上的阻抗，进而减小整个所述显示面板的阻抗，提升所述显示面板的显示质量。
进一步地，所述第一凸起结构1411与所述第二凸起结构1412的形状不限于矩形，还可以是圆形、三角形、梯形等，优选矩形，制作工艺最简便。
在申请的一种实施例中，平行于所述第一方向X的第二金属层151为第一段第二金属层1511，平行于所述第二方向Y的所述第二金属层151为第二段第二金属层1512，所述第一段第二金属层1511与所述第二段第二金属层1512在所述非显示区内垂直相交，即横向的所述第二金属层151与纵向的所述第二金属层151在所述非显示区内形成一个“回”字型。
在申请的一种实施例中，所述第一段第二金属层1512上设置有第二过孔161。进一步地，所述第二过孔161连通所述第一段第二金属层1511与所述公共电极17，即所述第二过孔161连通所述第二金属层151与所述公共电极17。
在申请的一种实施例中，所述连接线分为：第一连接线142与第二连接线152；所述第一连接线142与所述扫描线141同层设置，所述第二连接线152与所述数据线153同层设置。参阅图5，所述扫描线141与所述第一连接线142同层设置且相互垂直，所述第一连接线142在经过所述扫描线141处断开，通过所述第二连接线152与所述第一过孔143连通，所述第二连接线152与所述第二金属层151同层设置，所述第二金属层151通过所述第二过孔161与所述公共电极17导通，所述公共电极17信号的导通通常采用在所述显示区外围开一圈平坦化层孔（即所述第二过孔161），将所述公共电极17所述第二金属层151相连，通过给所述第二金属层151信号，再从四周的所述第二金属层151上导入整面的所述公共电极17的方式。
在申请的一种实施例中，所述第一连接线142与所述第二连接线152之间设置有第一过孔143，所述第一过孔143电性导通所述第一连接线142与所述第二连接线152。
进一步地，所述显示面板的膜层还包括：衬底基板11，缓冲层12，设置在所述缓冲层12中用于为有源层遮挡光线的遮光层121，第一绝缘层13，第二绝缘层14，设置在所述第二绝缘层14内的所述扫描线141、所述第一连接线142以及所述第一过孔143，所述第二金属层151，所述第二连接线152，平坦化层16，设置在所述平坦化层16中的所述第二过孔161，所述公共电极17以及钝化层18。
因此，本申请提供的一种显示面板的有益效果为：首先，本申请提供的显示面板，所述显示面板包括：多条相互平行的扫描线、多条相互平行的数据线、公共电极以及多条连接线；所述扫描线与所述数据线异面垂直，与所述数据线同层的非显示区内还设置有一圈第二金属层；多条所述连接线均平行于所述数据线进行设置；所述扫描线沿第一方向间隔设置有多个凸起结构；将所述连接线与所述扫描线垂直设置，避免所述连接线与所述扫描线平行设置，所述连接线与所述扫描线相近的位置形成密闭空间，导致蚀刻液残留在显示面板内，影响显示面板的显示质量；进一步地，本申请提供的显示面板，在所述扫描线沿所述第一方向上间隔设置有多个凸起结构，所述第一凸起结构朝向所述第二方向的正方向，所述第二凸起结构朝向所述第二方向的负方向，且相邻的所述第一凸起结构之间的距离是所述第一凸起结构与所述第二凸起结构之间距离的两倍，使得所述第一连接线与所述扫描线之间基本无密闭空间存在，进一步减小了蚀刻液残留在所述显示面板内的可能，提高了所述显示面板的生产良率。
以上对本申请实施例所提供的一种显示面板进行了详细介绍，本文中应用了具体个例对本申请的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本申请的技术方案及其核心思想；本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的范围。

Claims (19)

  1. 一种显示面板，所述显示面板包括：多条相互平行的扫描线、多条相互平行的数据线、公共电极以及多条连接线；
    所述扫描线与所述数据线异面垂直，与所述数据线同层的非显示区内还设置有一圈第二金属层；所述第二金属层形成一个“回”字型；
    多条所述连接线均平行于所述数据线进行设置；
    所述扫描线沿第一方向间隔设置有多个凸起结构。
  2. 根据权利要求1所述的显示面板，其中，所述凸起结构分为第一凸起结构与第二凸起结构，所述第一凸起结构朝向第二方向的正方向，所述第二凸起结构朝向所述第二方向的负方向。
  3. 根据权利要求2所述的显示面板，其中，所述第一凸起结构与所述第二凸起结构之间的距离为第一距离，相邻的所述第一凸起结构之间的距离为第二距离，相邻的所述第二凸起结构之间的距离也为第二距离，所述第二距离等于两倍的所述第一距离。
  4. 根据权利要求2所述的显示面板，其中，所述第一凸起结构沿所述第一方向的长度为第一长度，所述第一凸起结构沿所述第二方向的长度为第二长度，所述第二凸起结构沿所述第一方向的长度为第三长度，所述第二凸起结构沿所述第二方向的长度为第四长度；所述第一长度等于所述第二长度，所述第三长度等于所述第四长度。
  5. 根据权利要求4所述的显示面板，其中，所述第一长度、所述第二长度均大于所述扫描线沿所述第二方向的长度。
  6. 根据权利要求2所述的显示面板，其中，所述第一方向垂直于所述第二方向。
  7. 根据权利要求2所述的显示面板，其中，所述第一凸起结构与所述第二凸起结构的形状为矩形、圆形、三角形或是梯形。
  8. 根据权利要求1所述的显示面板，其中，平行于所述第一方向的第二金属层为第一段第二金属层，平行于所述第二方向的所述第二金属层为第二段第二金属层，所述第一段第二金属层与所述第二段第二金属层在所述非显示区内垂直相交。
  9. 根据权利要求8所述的显示面板，其中，所述第一段第二金属层上设置有第二过孔。
  10. 根据权利要求9所述的显示面板，其中，所述第二过孔连通所述第一段第二金属层与所述公共电极，即所述第二过孔连通所述第二金属层与所述公共电极。
  11. 根据权利要求1所述的显示面板，其中，所述连接线分为：第一连接线与第二连接线；所述第一连接线与所述扫描线同层设置，所述第二连接线与所述数据线同层设置。
  12. 根据权利要求11所述的显示面板，其中，所述第一连接线与所述第二连接线之间设置有第一过孔，所述第一过孔电性导通所述第一连接线与所述第二连接线。
  13. 根据权利要求1所述的显示面板，其中，所述显示面板还包括：衬底基板、缓冲层、遮光层、第一绝缘层、第二绝缘层、扫描线、第一连接线、第一过孔、第二金属层、第二连接线、第二连接线、平坦化层、第二过孔、公共电极以及钝化层。
  14. 根据权利要求13所述的显示面板，其中，所述遮光层设置在所述缓冲层内；所述扫描线、所述第一连接线与所述第一过孔设置在所述第二绝缘层内；所述第二过孔设置在所述平坦化层内。
  15. 一种显示面板，所述显示面板包括：多条相互平行的扫描线、多条相互平行的数据线、公共电极以及多条连接线；
    所述扫描线与所述数据线异面垂直，与所述数据线同层的非显示区内还设置有一圈第二金属层；
    多条所述连接线均平行于所述数据线进行设置；
    所述扫描线沿第一方向间隔设置有多个凸起结构。
  16. 根据权利要求15所述的显示面板，其中，所述凸起结构分为第一凸起结构与第二凸起结构，所述第一凸起结构朝向第二方向的正方向，所述第二凸起结构朝向所述第二方向的负方向。
  17. 根据权利要求16所述的显示面板，其中，所述第一凸起结构与所述第二凸起结构之间的距离为第一距离，相邻的所述第一凸起结构之间的距离为第二距离，相邻的所述第二凸起结构之间的距离也为第二距离，所述第二距离等于两倍的所述第一距离。
  18. 根据权利要求16所述的显示面板，其中，所述第一凸起结构沿所述第一方向的长度为第一长度，所述第一凸起结构沿所述第二方向的长度为第二长度，所述第二凸起结构沿所述第一方向的长度为第三长度，所述第二凸起结构沿所述第二方向的长度为第四长度；所述第一长度等于所述第二长度，所述第三长度等于所述第四长度。
  19. 根据权利要求18所述的显示面板，其中，所述第一长度、所述第二长度均大于所述扫描线沿所述第二方向的长度。
PCT/CN2020/114395 2020-07-10 2020-09-10 显示面板 Ceased WO2022007178A1 (zh)

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