WO2021168759A1 - 一种显示面板及显示装置 - Google Patents

一种显示面板及显示装置 Download PDF

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Publication number
WO2021168759A1
WO2021168759A1 PCT/CN2020/077041 CN2020077041W WO2021168759A1 WO 2021168759 A1 WO2021168759 A1 WO 2021168759A1 CN 2020077041 W CN2020077041 W CN 2020077041W WO 2021168759 A1 WO2021168759 A1 WO 2021168759A1
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WIPO (PCT)
Prior art keywords
touch
display panel
retaining wall
width
trace
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PCT/CN2020/077041
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English (en)
French (fr)
Inventor
程博
苟结
杨益祥
何帆
张波
Original Assignee
京东方科技集团股份有限公司
成都京东方光电科技有限公司
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Application filed by 京东方科技集团股份有限公司, 成都京东方光电科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to CN202080000201.5A priority Critical patent/CN113785265A/zh
Priority to PCT/CN2020/077041 priority patent/WO2021168759A1/zh
Priority to JP2022530768A priority patent/JP2023514912A/ja
Priority to PCT/CN2021/077957 priority patent/WO2021170050A1/zh
Priority to EP21760359.6A priority patent/EP4050466A4/en
Priority to CN202180000317.3A priority patent/CN114096940B/zh
Priority to US17/756,305 priority patent/US11937485B2/en
Publication of WO2021168759A1 publication Critical patent/WO2021168759A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/04164—Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/40—OLEDs integrated with touch screens
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/131—Interconnections, e.g. wiring lines or terminals
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display

Definitions

  • the present invention relates to the field of semiconductor technology, and in particular to a display panel and a display device.
  • Active matrix organic light-emitting devices (English: Active-matrix organic light-emitting diode; abbreviation: AMOLED) have the advantages of lightness and thinness, low power consumption, high contrast, high color gamut, and flexible display, and are widely used in the display industry.
  • the integrated touch display device (Flexible Multi-Layer On Cell, FMLOC) has become a trend design product. Compared with the external touch screen panel (Touch Screen Panel, TSP), it can greatly reduce the cost and have a higher integration level. , The product is thinner and easier to fold.
  • the prior art integrated touch display device is prone to short circuit of adjacent touch traces, resulting in touch failure.
  • the present invention provides a display panel and a display device, so as to improve the problem that the prior art integrated touch display device is prone to short circuit of adjacent touch wires, resulting in touch failure.
  • An embodiment of the present invention provides a display panel, including:
  • a display area the display area having touch electrodes
  • a retaining wall structure the retaining wall structure enclosing the display area
  • Touch traces the touch electrodes are led out from the display area through the touch traces that straddle the retaining wall structure, and the touch traces are in a climbing position across the retaining wall structure The width at the position is smaller than the width of the touch trace at other positions.
  • the display panel has a plurality of the retaining wall structures, and the same touch trace has the same width at the climbing positions across different retaining wall structures.
  • the widths of the different touch traces at the climbing position are the same.
  • each of the touch traces has a hollow portion recessed inward from the outer edge of the touch trace at the climbing position.
  • each of the touch wires has two hollow parts at one of the climbing positions, and the notches of the two hollow parts are opposite to each other.
  • the length of the hollow portion along the extension direction of the touch trace is greater than the length along the extension direction perpendicular to the touch trace.
  • the shape of the hollow portion is rectangular, square, semicircular, semi-elliptical, or triangular.
  • the shape of the hollow portion is a rectangle; the length of the hollow portion along the extension direction perpendicular to the touch trace is one-tenth to the width of the touch trace one fifth.
  • the hollow portion has a length of 1 ⁇ m to 3 ⁇ m in a direction perpendicular to the extension direction of the touch trace.
  • the width of the hollow portion along the extending direction of the touch trace is 5 ⁇ m to 15 ⁇ m.
  • the display panel includes: a base substrate, a thin film transistor, a light-emitting layer, and an encapsulation layer sequentially located on the base substrate; wherein, the touch trace is located in the encapsulation The side of the layer facing away from the light-emitting layer.
  • the embodiment of the present invention also provides a display device, including the display panel provided in the embodiment of the present invention.
  • the display panel provided by the embodiments of the present invention has a display area, a barrier structure surrounding the display area, the display area has touch electrodes, and the touch electrodes pass across the The touch trace of the retaining wall structure is led out from the display area; wherein the width of the touch trace at the climbing position across the retaining wall structure is smaller than the width of the touch trace at other positions That is, when the touch trace enters the display area (AA) from an external circuit (such as FPC), there is a large step difference when passing through the lower retaining wall structure (Dam), and the metal film forming the touch trace When the layer is exposed, photoresist (PR) residue is prone to appear at the steep slope of the retaining wall structure, resulting in photoresist residue on the steep slope of the metal traces of the same film layer with different signals.
  • an external circuit such as FPC
  • the touch trace can be made at the climbing position.
  • the increased space between them reduces the occurrence rate of short circuits, improves the yield rate, and improves the touch integrated display device, which is prone to short circuits between adjacent touch traces, leading to the problem of touch failure.
  • FIG. 1 is a schematic top view of a display panel provided by an embodiment of the present invention
  • Figure 2 is an enlarged schematic diagram of Figure 1 at the dotted box
  • FIG. 3 is a schematic cross-sectional view of a touch wire at a retaining wall structure according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of the same touch trace having the same width at different climbing positions according to an embodiment of the present invention.
  • Fig. 5 is a schematic diagram of a hollow part provided by an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of different widths of hollow portions in different extension directions provided by an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of a square hollow portion provided by an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of a semicircular hollow part provided by an embodiment of the present invention.
  • FIG. 9 is a schematic diagram of a semi-elliptical hollow portion provided by an embodiment of the present invention.
  • FIG. 10 is a schematic diagram of a triangular hollow portion provided by an embodiment of the present invention.
  • Figure 1 is an enlarged schematic diagram of the dashed box in Figure 1
  • Figure 3 is a schematic cross-sectional view of the touch trace at the climbing position of the retaining wall structure, the implementation of the present invention
  • the example provides a display panel, including:
  • the display area AA has touch electrodes (not shown in the figure);
  • Retaining wall structure 1 surrounds the display area AA;
  • Touch trace 2 the touch electrode 1 is led out from the display area AA through the touch trace 2 across the retaining wall structure 1, and the touch trace 2 is at the climbing position across the retaining wall structure 1 (as shown in Figure 2
  • the width h of the dashed circle in FIG. 3 is smaller than the width H of the touch trace 2 at other positions.
  • Other positions specifically, may be the width of the touch trace 2 at positions other than the climbing position.
  • another layer such as an encapsulation layer, can also be formed between the barrier structure 1 and the touch trace 2.
  • the display panel provided by the embodiment of the present invention has a display area, a barrier wall structure surrounding the display area, the display area has touch electrodes, and the touch electrodes are led out from the display area through touch wires that cross the barrier structure;
  • the width of the control trace at the climbing position across the retaining wall structure is smaller than the width of the touch trace at other positions, that is, when the touch trace enters the display area (AA) from an external circuit (such as FPC), After the lower retaining wall structure (Dam), there is a large step difference, and then when the metal film layer forming the touch trace is exposed, the photoresist (PR) residue is prone to appear at the steep slope of the retaining wall structure, resulting in different signals.
  • the metal traces of the same film layer have photoresist residues at steep slopes. After the photoresist is removed later, metal residues will occur, which will cause short circuits between touch traces, which will lead to touch failure.
  • the width of the climbing position across the retaining wall structure is reduced, which can increase the space between the touch traces at the climbing position, reduce the incidence of short circuits, increase the yield, and improve the ease of touch integrated display devices There is a short circuit between adjacent touch traces, which leads to the problem of touch failure.
  • the display panel in the embodiment of the present invention may be a FMLOC display panel, that is, after the packaging layer of the display panel encapsulating the organic light-emitting device is manufactured, the touch film layer is directly formed on it, and the touch and The display is integrated in the same panel.
  • the touch electrodes can be led out through the retaining wall structure 1 of the frame (for example, the lower frame) on one side of the display panel, and the touch wires 2 on the outside of the retaining wall structure 1 can be led to the flexible Circuit board FPC.
  • barrier structure in the embodiment of the present invention may specifically be a barrier structure that blocks the flow of the organic packaging material in the packaging layer during the packaging process.
  • the display panel has a plurality of retaining wall structures, and the same touch trace 2 has the same width at the climbing position across different retaining wall structures 1. That is, as shown in FIG. 4, for example, the display panel has a two-layer retaining wall structure 1, and each touch trace 2 passes through the first climbing position A1 when passing the two-layer retaining wall structure outward from the display area.
  • the width of the same touch trace at the climbing position across the different retaining wall structures is the same, which is beneficial to reduce the manufacturing difficulty of the touch trace in the embodiment of the present invention.
  • the widths of the different touch traces 2 at the climbing position are the same. That is, for example, as shown in FIG. 4, the width h21 of the second touch trace from the left at the climbing position is the same as the width h11 of the first touch trace from the left at the climbing position.
  • the widths of the different touch traces 2 at the climbing position are the same, which is beneficial to reduce the difficulty of making the touch trace 2 in the embodiment of the present invention, and can also avoid the different touch traces 2 due to The different width of itself leads to the problem of different touch signals provided to the display panel.
  • each touch trace 2 has a recessed inward from the outer edge of the touch trace (as shown by the arrow in FIG. 5) at the climbing position. ⁇ 21 ⁇ Hollowed part 21.
  • each touch wire 2 has two hollow parts 21 at a climbing position, and the notches of the two hollow parts 21 are opposite to each other. That is, for example, as shown in FIG. 5, the first touch trace 2 from the left in a climbing position A1 has a first hollow portion 211, a second hollow portion 212, and the notch of the first hollow portion 211 and the first hollow portion 211 The notches of the two hollow parts 212 face away from each other.
  • the length y of the hollow portion along the extension direction AB of the touch trace is greater than the length x along the extension direction CD perpendicular to the touch trace 2.
  • the x direction is the direction in which different touch traces are easily short-circuited. The y setting is larger because the touch trace has a longer slope at the climbing position.
  • the x direction should not be too large because the width of the touch trace is relatively small. If x is large, it will cause a sudden change in resistance. .
  • the shape of the hollow part 21 is a rectangle, as shown in FIG. 5 or FIG. 6; the shape of the hollow part 21 may also be a square, as shown in FIG. 7; the shape of the hollow part 21 may also be a semicircle, As shown in FIG. 8; the shape of the hollow portion 21 may also be a semi-ellipse, as shown in FIG. 9; the shape of the hollow portion 21 may also be a triangle, as shown in FIG.
  • the rectangle, square, semicircle, semi-ellipse, and triangle described above can also be approximately rectangular, approximately square, or approximately semicircle in actual production, taking into account the manufacturing process errors. Shape, approximate semi-ellipse, approximate triangle.
  • the shape of the hollow portion 21 is a rectangle; the length x of the hollow portion 21 along the extending direction AB perpendicular to the touch trace 2 is one-tenth of the width H of the touch trace 2 To one-fifth.
  • the length x of the hollow portion 21 along the extending direction AB perpendicular to the touch trace 2 is one-tenth to one-fifth of the width H of the touch trace 2, which can be improved in the climbing position While the short circuit problem is prone to occur, it can also avoid affecting the signal transmission capability of the touch trace itself when the line width of the touch trace is changed.
  • the length x of the hollow portion 21 along the extending direction AB perpendicular to the touch trace 2 is 1 ⁇ m to 3 ⁇ m.
  • the width y of the hollow portion 21 along the extending direction AB of the touch trace 2 is 5 ⁇ m to 15 ⁇ m.
  • the display panel includes: a base substrate, a thin film transistor, a light-emitting layer, and an encapsulation layer sequentially located on the base substrate; wherein the touch trace is located on the side of the encapsulation layer that faces away from the light-emitting layer.
  • the embodiment of the present invention also provides a display device, including the display panel as provided in the embodiment of the present invention.
  • the display panel provided by the embodiments of the present invention has a display area, a barrier wall structure surrounding the display area, the display area has touch electrodes, and the touch electrodes pass through touch wires that cross the barrier structure.
  • the width of the touch trace at the climbing position across the retaining wall structure is smaller than the width of the touch trace at other positions, that is, because the touch trace enters from an external circuit (such as FPC)
  • FPC external circuit
  • the display area (AA) there is a large step difference when passing through the lower retaining wall structure (Dam), and then when the metal film layer forming the touch trace is exposed, the photoresist ( PR) residues, resulting in photoresist residues on the steep slopes of the metal traces of the same film layer with different signals.

Abstract

一种显示面板及显示装置，以改善现有技术的触控一体化显示器件容易发生相邻触控走线（2）短路，导致触控失效的问题。显示面板包括：显示区（AA），显示区（AA）具有触控电极；挡墙结构（1），挡墙结构（1）包围显示区（AA）；触控走线（2），触控电极通过横跨挡墙结构（1）的触控走线（2）从显示区（AA）引出，触控走线（2）在横跨挡墙结构（1）的爬坡位置处的宽度（h）小于触控走线（2）在其它位置的宽度（H）。

Description

一种显示面板及显示装置 技术领域
本发明涉及半导体技术领域，尤其涉及一种显示面板及显示装置。
背景技术
有源矩阵有机发光器件(英文：Active-matrix organic light-emitting diode；简称：AMOLED)具有轻薄、低功耗、高对比度、高色域以及可柔性显示等优点，广泛应用于显示行业。
AMOLED产品中，触控一体化显示器件(Flexible Multi-Layer On Cell，FMLOC)已经是趋势设计产品，相比外挂触摸屏板(Touch Screen Panel，TSP)，可以很大程度降低成本，集成度更高，产品更轻薄，更容易折叠。
但现有技术的触控一体化显示器件容易发生相邻触控走线短路，导致触控失效。
发明内容
本发明提供一种显示面板及显示装置，以改善现有技术的触控一体化显示器件容易发生相邻触控走线短路，导致触控失效的问题。
本发明实施例提供一种显示面板，包括：
显示区，所述显示区具有触控电极；
挡墙结构，所述挡墙结构包围所述显示区；
触控走线，所述触控电极通过横跨所述挡墙结构的所述触控走线从所述显示区引出，所述触控走线在横跨所述挡墙结构的爬坡位置处的宽度小于所述触控走线在其它位置的宽度。
在一种可能的实施方式中，所述显示面板具有多个所述挡墙结构，同一所述触控走线在横跨不同所述挡墙结构的所述爬坡位置处的宽度相同。
在一种可能的实施方式中，不同所述触控走线在所述爬坡位置处的宽度 相同。
在一种可能的实施方式中，每一所述触控走线在所述爬坡位置处具有由所述触控走线外边缘向内凹陷的镂空部。
在一种可能的实施方式中，每一所述触控走线在一处所述爬坡位置具有两个所述镂空部，两个所述镂空部的凹口相背而置。
在一种可能的实施方式中，所述镂空部在沿所述触控走线延伸方向上的长度大于沿垂直于所述触控走线延伸方向上的长度。
在一种可能的实施方式中，所述镂空部的形状为长方形、正方形、半圆形、半椭圆形或三角形。
在一种可能的实施方式中，所述镂空部的形状为长方形；所述镂空部在沿垂直于所述触控走线延伸方向的长度为所述触控走线宽度的十分之一至五分之一。
在一种可能的实施方式中，所述镂空部在沿垂直于所述触控走线延伸方向上的长度1μm～3μm。
在一种可能的实施方式中，所述镂空部在沿所述触控走线延伸方向的宽度为5μm～15μm。
在一种可能的实施方式中，所述显示面板包括：衬底基板，依次位于所述衬底基板之上的薄膜晶体管，发光层以及封装层；其中，所述触控走线位于所述封装层的背离所述发光层的一面。
本发明实施例还提供一种显示装置，包括如本发明实施例提供的所述显示面板。
本发明实施例有益效果如下：本发明实施例提供的显示面板，具有显示区，包围所述显示区的挡墙结构，所述显示区具有触控电极，所述触控电极通过横跨所述挡墙结构的触控走线从所述显示区引出；其中，所述触控走线在横跨所述挡墙结构的爬坡位置处的宽度小于所述触控走线在其它位置的宽度，即，由于触控走线从外界电路(如FPC)进入显示区(AA)时，在经过下挡墙结构(Dam)处具有较大的段差，进而在对形成触控走线的金属膜层 进行曝光时，挡墙结构陡坡处容易出现光刻胶(PR)残留，导致不同信号的同膜层金属走线在陡坡处出现光刻胶残留，在后续去除光刻胶后，会发生金属残留，导致触控走线之间短路，进而导致触控失效，而通过将触控走线在横跨挡墙结构的爬坡位置处的宽度减小，可以使在爬坡处触控走线之间的空间增大，降低短路发生率，提高良率，改善触控一体化显示器件容易发生相邻触控走线短路，导致触控失效的问题。
附图说明
图1为本发明实施例提供的显示面板的俯视示意图；
图2为图1在虚线方框处的放大示意图；
图3为本发明实施例提供的触控走线在挡墙结构处的剖视示意图；
图4为本发明实施例提供的同一触控走线在不同爬坡位置处的宽度相同的示意图；
图5为本发明实施例提供的镂空部示意图；
图6为本发明实施例提供的镂空部在不同延伸方向上宽度不同的示意图；
图7为本发明实施例提供的镂空部为正方形的示意图；
图8为本发明实施例提供的镂空部为半圆形的示意图；
图9为本发明实施例提供的镂空部为半椭圆形的示意图；
图10为本发明实施例提供的镂空部为三角形的示意图。
具体实施方式
为了使得本公开实施例的目的、技术方案和优点更加清楚，下面将结合本公开实施例的附图，对本公开实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本公开的一部分实施例，而不是全部的实施例。基于所描述的本公开的实施例，本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实施例，都属于本公开保护的范围。
除非另外定义，本公开使用的技术术语或者科学术语应当为本公开所属 领域内具有一般技能的人士所理解的通常意义。本公开中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。“包括”或者“包含”等类似的词语意指出现该词前面的元件或者物件涵盖出现在该词后面列举的元件或者物件及其等同，而不排除其他元件或者物件。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接，而是可以包括电性的连接，不管是直接的还是间接的。“上”、“下”、“左”、“右”等仅用于表示相对位置关系，当被描述对象的绝对位置改变后，则该相对位置关系也可能相应地改变。
为了保持本公开实施例的以下说明清楚且简明，本公开省略了已知功能和已知部件的详细说明。
参见图1、图2和图3所示，图2为图1的虚线方框处的放大示意图，图3为触控走线在挡墙结构的爬坡位置处的剖视示意图，本发明实施例提供一种显示面板，包括：
显示区AA，显示区AA具有触控电极(图中未示出)；
挡墙结构1，挡墙结构1包围显示区AA；
触控走线2，触控电极1通过横跨挡墙结构1的触控走线2从显示区AA引出，触控走线2在横跨挡墙结构1的爬坡位置处(如图2和图3虚线圆圈)的宽度h小于触控走线2在其它位置的宽度H。其它位置，具体可以为触控走线2在除爬坡位置处以外的位置处的宽度。具体的，挡墙结构1和触控走线2之间还可以其他层，如封装层等结构。
本发明实施例提供的显示面板，具有显示区，包围显示区的挡墙结构，显示区具有触控电极，触控电极通过横跨挡墙结构的触控走线从显示区引出；其中，触控走线在横跨挡墙结构的爬坡位置处的宽度小于触控走线在其它位置的宽度，即，由于触控走线从外界电路(如FPC)进入显示区(AA)时，在经过下挡墙结构(Dam)处具有较大的段差，进而在对形成触控走线的金属膜层进行曝光时，挡墙结构陡坡处容易出现光刻胶(PR)残留，导致不同信号的同膜层金属走线在陡坡处出现光刻胶残留，在后续去除光刻胶后，会 发生金属残留，导致触控走线之间短路，进而导致触控失效，而通过将触控走线在横跨挡墙结构的爬坡位置处的宽度减小，可以使在爬坡处触控走线之间的空间增大，降低短路发生率，提高良率，改善触控一体化显示器件容易发生相邻触控走线短路，导致触控失效的问题。
在具体实施时，本发明实施例中的显示面板，可以为FMLOC显示面板，即，在制作完显示面板的封装有机发光器件的封装层后，在其上直接制作触控膜层，触控与显示集成于同一面板。具体的，参见图1所示，触控电极具体可以经过显示面板一侧的边框(例如，下边框)的挡墙结构1引出，挡墙结构1外侧的触控走线2具体可以引接至柔性电路板FPC。
需要说明的是，本发明实施例中的挡墙结构，具体可以为阻挡封装层中的有机封装材料在封装过程中的流动的挡墙结构。
在具体实施时，显示面板具有多个挡墙结构，同一触控走线2在横跨不同挡墙结构1的爬坡位置处的宽度相同。即，结合图4所示，例如，显示面板具有两层挡墙结构1，每一触控走线2在由显示区向外经过该两层挡墙结构时要经过第一处爬坡位置A1，第二处爬坡位置A2，第三处爬坡位置A3，第四处爬坡位置A4，在第一处爬坡位置A1位置处的宽度h11，在第二处爬坡位置处A2的宽度h12，在第三处爬坡位置A3的宽度h13，在第四处爬坡位置A4的宽度为h14，则，h11，h12，h13，h14均相同。本发明实施例中，同一触控走线在横跨不同挡墙结构的爬坡位置处的宽度相同，有利于降低本发明实施例中的触控走线的制作难度。
在具体实施时，不同触控走线2在爬坡位置处的宽度相同。即，例如，结合图4所示，左起第二条触控走线在爬坡位置处的宽度h21与左起第一条触控走线在爬坡位置处的宽度h11的宽度相同。本发明实施例中，不同触控走线2在爬坡位置处的宽度相同，有利于降低本发明实施例中的触控走线2的制作难度，同时也可以避免不同触控走线2由于自身宽度不同，导致为显示面板提供的触控信号不同的问题。
在具体实施时，结合图2、图4以及图5所示，每一触控走线2在爬坡位 置处具有由触控走线外边缘向内凹陷(如图5中箭头所示)的镂空部21。具体的，每一触控走线2在一处爬坡位置具有两个镂空部21，两个镂空部21的凹口相背而置。即，例如，结合图5所示，左起第一条触控走线2在一处爬坡位置A1具有第一镂空部211、第二镂空部212，第一镂空部211的凹口与第二镂空部212的凹口相互背向。
在具体实施时，结合图6所示，镂空部在沿触控走线延伸方向AB上的长度y大于沿垂直于触控走线2延伸方向CD上的长度x。本发明实施例中，由于y方向是触控走线从挡墙结构上爬坡的方向，x方向是不同触控走线容易短路的方向。y设置的较大，是因为触控走线在爬坡位置处有较长的坡度，x方向不能太大，是因为触控走线线宽就比较小，如果x较大，会造成电阻突变。
在具体实施时，镂空部21的形状为长方形，如图5或图6所示；镂空部21的形状也可以为正方形，如图7所示；镂空部21的形状也可以为半圆形，如图8所示；镂空部21的形状也可以为半椭圆形，如图9所示；镂空部21的形状也可以为三角形，如图10所示。当然，可以理解的是，以上所描述的长方形、正方形、半圆形、半椭圆形、三角形，在实际制作时，考虑到制作的工艺误差，也可以相应为近似长方形、近似正方形、近似半圆形、近似半椭圆形、近似三角形。
在具体实施时，结合图6所示，镂空部21的形状为长方形；镂空部21在沿垂直于触控走线2延伸方向AB的长度x为触控走线2宽度H的十分之一至五分之一。本发明实施例中，镂空部21在沿垂直于触控走线2延伸方向AB的长度x为触控走线2宽度H的十分之一至五分之一，可以在改善在爬坡位置容易出现短路问题的同时，也可以避免影响触控走线线宽改变时，影响触控走线本身的信号传输能力。
在具体实施时，结合图6所示，镂空部21在沿垂直于触控走线2延伸方向AB上的长度x为1μm～3μm。镂空部21在沿触控走线2延伸方向AB的宽度y为5μm～15μm。
在具体实施时，显示面板包括：衬底基板，依次位于衬底基板之上的薄 膜晶体管，发光层以及封装层；其中，触控走线位于封装层的背离发光层的一面。
本发明实施例还提供一种显示装置，包括如本发明实施例提供的显示面板。
本发明实施例有益效果如下：本发明实施例提供的显示面板，具有显示区，包围显示区的挡墙结构，显示区具有触控电极，触控电极通过横跨挡墙结构的触控走线从显示区引出；其中，触控走线在横跨挡墙结构的爬坡位置处的宽度小于触控走线在其它位置的宽度，即，由于触控走线从外界电路(如FPC)进入显示区(AA)时，在经过下挡墙结构(Dam)处具有较大的段差，进而在对形成触控走线的金属膜层进行曝光时，挡墙结构陡坡处容易出现光刻胶(PR)残留，导致不同信号的同膜层金属走线在陡坡处出现光刻胶残留，在后续去除光刻胶后，会发生金属残留，导致触控走线之间短路，进而导致触控失效，而通过将触控走线在横跨挡墙结构的爬坡位置处的宽度减小，可以使在爬坡处触控走线之间的空间增大，降低短路发生率，提高良率，改善触控一体化显示器件容易发生相邻触控走线短路，导致触控失效的问题。
显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。

Claims (12)

  1. 一种显示面板，其中，包括：
    显示区，所述显示区具有触控电极；
    挡墙结构，所述挡墙结构包围所述显示区；
    触控走线，所述触控电极通过横跨所述挡墙结构的所述触控走线从所述显示区引出，所述触控走线在横跨所述挡墙结构的爬坡位置处的宽度小于所述触控走线在其它位置的宽度。
  2. 如权利要求1所述的显示面板，其中，所述显示面板具有多个所述挡墙结构，同一所述触控走线在横跨不同所述挡墙结构的所述爬坡位置处的宽度相同。
  3. 如权利要求1或2所述的显示面板，其中，不同所述触控走线在所述爬坡位置处的宽度相同。
  4. 如权利要求1所述的显示面板，其中，每一所述触控走线在所述爬坡位置处具有由所述触控走线外边缘向内凹陷的镂空部。
  5. 如权利要求4所述的显示面板，其中，每一所述触控走线在一处所述爬坡位置具有两个所述镂空部，两个所述镂空部的凹口相背而置。
  6. 如权利要求4所述的显示面板，其中，所述镂空部在沿所述触控走线延伸方向上的长度大于沿垂直于所述触控走线延伸方向上的长度。
  7. 如权利要求4所述的显示面板，其中，所述镂空部的形状为长方形、正方形、半圆形、半椭圆形或三角形。
  8. 如权利要求7所述的显示面板，其中，所述镂空部的形状为长方形；所述镂空部在沿垂直于所述触控走线延伸方向的长度为所述触控走线宽度的十分之一至五分之一。
  9. 如权利要求8所述的显示面板，其中，所述镂空部在沿垂直于所述触控走线延伸方向上的长度1μm～3μm。
  10. 如权利要求9所述的显示面板，其中，所述镂空部在沿所述触控走 线延伸方向的宽度为5μm～15μm。
  11. 如权利要求1所述的显示面板，其中，所述显示面板包括：衬底基板，依次位于所述衬底基板之上的薄膜晶体管，发光层以及封装层；其中，所述触控走线位于所述封装层的背离所述发光层的一面。
  12. 一种显示装置，其中，包括如权利要求1-11任一项所述的显示面板。
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