WO2020019415A1 - 显示面板 - Google Patents

显示面板 Download PDF

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Publication number
WO2020019415A1
WO2020019415A1 PCT/CN2018/104372 CN2018104372W WO2020019415A1 WO 2020019415 A1 WO2020019415 A1 WO 2020019415A1 CN 2018104372 W CN2018104372 W CN 2018104372W WO 2020019415 A1 WO2020019415 A1 WO 2020019415A1
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WO
WIPO (PCT)
Prior art keywords
display area
touch signal
signal line
display panel
line
Prior art date
Application number
PCT/CN2018/104372
Other languages
English (en)
French (fr)
Inventor
洪光辉
Original Assignee
武汉华星光电技术有限公司
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Publication date
Application filed by 武汉华星光电技术有限公司 filed Critical 武汉华星光电技术有限公司
Publication of WO2020019415A1 publication Critical patent/WO2020019415A1/zh

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Classifications

    • 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
    • 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
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • H05K9/0067—Devices for protecting against damage from electrostatic discharge
    • 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
    • H10K59/126—Shielding, e.g. light-blocking means over the TFTs
    • 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
    • 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

Definitions

  • the present disclosure relates to a display panel, and more particularly to a display panel having an opening design in a display area.
  • FIG. 1 shows a schematic diagram of a conventional display panel 1 with an opening 10 in the display area.
  • the opening 10 is provided on the upper surface of the display panel 1, that is, a part of the display unit is removed at a position corresponding to the front camera in the upper surface.
  • a part of the display unit is usually removed in a circular opening 10 design mode, and a frame 11 is designed around the opening 10, which is similar to the non-display area of the left and right frames to provide related transmission line settings.
  • the display panel 1 Compared with the common non-rectangular (not rectangular) panel with a notch, the display panel 1 adds a circular frame 11 to increase the risk of failure in reliability tests.
  • the display panel 1 is performing electrostatic discharge (Electrostatic discharge). , ESD) test, the risk of test failure.
  • ESD electrostatic discharge
  • the data line, gate line and touch signals need to be placed at the frame 11. (TP signal line) and other traces for optimized design.
  • the arc traces are set at the frame 11 so that the gate lines can be connected to the left and right through the corresponding arc traces around the openings 10, and the data lines can be bypassed through the corresponding arc traces.
  • 10 locations are connected up and down, and the touch signal line can be connected up and down by bypassing the openings 10 locations through corresponding arcuate traces.
  • an object of the present disclosure is to provide a display panel with an opening design in a display area.
  • the anti-static discharge protection circuit is provided in a non-display area around the opening to improve the installation.
  • the anti-ESD capability of the touch signal lines near the openings further ensures the reliability of the display panel with the openings in the display area.
  • the present disclosure provides a display panel including: a display area provided with a plurality of display units arranged in an array; a first non-display area surrounding the display area; and an opening formed in the display area.
  • An area in the display area; a second non-display area located between the display area and the opening, and a plurality of arc-shaped traces are arranged in the second non-display area for connection A corresponding data line, gate line, or touch signal line; and an anti-static discharge protection circuit including a ring-shaped and closed floating metal trace, wherein the floating metal trace is disposed in the opening.
  • the display panel further includes a first touch signal line, and a part of the first touch signal line is provided in the display area and the other part is provided in the second non-display area; In the second non-display area, and both ends of the first touch signal line terminate in the display area.
  • the present disclosure also provides a display panel including: a display area provided with a plurality of display units arranged in an array; a first non-display area surrounding the display area; and an opening opened in the display area Area; a second non-display area is located between the display area and the opening, and a plurality of arc-shaped traces are arranged in the second non-display area for connecting corresponding data lines , A gate line, or a touch signal line; and an anti-static discharge protection circuit including a circular and closed floating metal trace, wherein the floating metal trace is disposed on the periphery of the opening and is located at The second non-display area; and a ground line provided in the first non-display area; and the anti-static discharge protection circuit further includes a first virtual touch signal line connected to the floating metal And the ground wire.
  • the present disclosure also provides a display panel including: a display area provided with a plurality of display units arranged in an array; a first non-display area surrounding the display area; and an opening opened in the display area Area; a second non-display area is located between the display area and the opening, and a plurality of arc-shaped traces are arranged in the second non-display area for connecting corresponding data lines , A gate line, or a touch signal line; and an anti-static discharge protection circuit including a floating metal trace, wherein the floating metal trace is disposed on the periphery of the opening and is located on the second Non-display area.
  • the floating metal trace is a circular and closed trace.
  • the display panel further includes a first touch signal line, and a portion of the first touch signal line is disposed in the display area and another portion is disposed in the second Non-display area, and both ends of the first touch signal line terminate in the display area.
  • a portion of the first touch signal line in the display area is a straight line parallel to the data line, and a position of the first touch signal line is A portion of the second non-display area is curved in an arc shape.
  • the display panel further includes a second touch signal line configured to pass through the display area and the second non-display area, and the first touch signal line and The second touch signal lines are symmetrically disposed with respect to each other with respect to a vertical line passing through a center of the opening.
  • a ground line is provided in the first non-display area, and the anti-static discharge protection circuit further includes a first virtual touch signal line connected to the floating metal trace. Wire and the ground wire.
  • the display panel further includes a third touch signal line, which extends straight along a direction parallel to the data line, and one end of the third touch signal line terminates at The display area and the other end terminate in the second non-display area.
  • the third touch signal line and the first virtual touch signal line are located on the same straight line position.
  • the anti-static discharge protection circuit further includes a second virtual touch signal line, connecting the floating metal trace and the ground line, and the second virtual touch The signal line is parallel to and separated from the first virtual touch signal line by a distance.
  • the display panel further includes a fourth touch signal line, which is parallel to and separated from the third touch signal line by the same distance, and the fourth touch The signal line and the second virtual touch signal line are located in the same straight line position.
  • the present disclosure achieves grounding at the outer border of the display panel (that is, the first non-display area) by adding a circle of metal traces at the outer periphery of the opening (that is, the second non-display area).
  • the function of the wire further protects the trace located at the second non-display area around the opening from being damaged during the ESD reliability test.
  • the one circle of metal traces is connected to the ground line at the outer frame of the display panel to improve the anti-ESD resistance of the touch signal line at the second non-display area, thereby ensuring that there is an open circuit in the display area. Reliability of the display panel.
  • FIG. 1 is a schematic diagram of a conventional display panel having an opening in a display area
  • FIG. 2 is a schematic diagram of a display panel according to a first preferred embodiment of the present disclosure
  • FIG. 3 shows an enlarged schematic diagram of part A of the display panel of FIG. 1, and shows a schematic diagram of the design of data lines and gate lines at the second non-display area;
  • FIG. 4 shows an enlarged schematic view of part B of the display panel of FIG. 1;
  • FIG. 5 is a partial schematic diagram of a display panel according to a second preferred embodiment of the present disclosure.
  • FIG. 2 shows a schematic diagram of a display panel 2 according to a first preferred embodiment of the present disclosure, which specifically shows a touch scheme of a display panel 2 with an opening in a display area and a schematic diagram of related wiring designs.
  • the display panel 2 of the present disclosure is provided in order to realize the full-screen design of the entire machine and retain the front camera placement position.
  • the display panel 2 is provided with an opening 20 on the upper plate surface, that is, the position corresponding to the front camera.
  • the display panel 2 may be an LCD, an OLED, or the like, and may be applied in the fields of a mobile phone, a display, a television, and the like.
  • the display panel 2 includes a display area 21 and a first non-display area 22.
  • the first non-display area 22 surrounds the display area 21 and is located at an outermost frame of the display panel 2.
  • the display area 21 is provided with a plurality of display units C arranged in an array, and the openings 20 are opened in the display area 21.
  • the display unit C is generally rectangular in design, and in the region of part A, designed to fit the opening 20, the display unit C is usually shaped (non-rectangular)
  • the design is adapted to meet the touch performance requirements, that is, the special-shaped design is performed according to the contour diagram at the opening 20.
  • a ground line 23 (ie, GND) is provided in the first non-display area 22 and is designed to protect a circuit located at a surrounding frame.
  • the ground wire 23 is usually a metal wire in a circle to protect the circuit at the frame, thereby improving the overall anti-ESD capability of the display panel 2.
  • the display panel 2 defines a display region boundary 24, a color filter boundary 25, and a thin film transistor boundary 26.
  • the color filter boundary 25 is located between the display region boundary 24 and the thin film transistor boundary 26.
  • FIG. 3 shows an enlarged schematic diagram of part A of the display panel 2 of FIG. 1, and specifically shows the design schematic diagrams of the data lines D1-D4 and the gate lines G1-G4 near the opening 20.
  • the display panel 2 further includes a second non-display area 28 located between the display area 21 and the opening 20, and its size is defined by the panel boundary 27 and the display area boundary 24. Since the display panel 2 has an opening 20 design, part of the display unit will be removed. In order to ensure normal display at positions other than the opening 20, a data line needs to be provided at the second non-display area 28. Routes D1-D4, gate lines G1-G4, and touch signal lines (TP signal lines) RX1-RX6 are optimized for design.
  • the arc line R is provided on the second non-display area 28 so that the gate lines G1-G4 can bypass the opening 20 through the corresponding arc line R and connect left and right, and the data lines D1-D4. It can be connected up and down through the corresponding arc-shaped wiring R around the opening 20, and the touch signal line RX1-RX6 (refer to FIG. 4) can be connected up and down by the corresponding arc-shaped wiring R bypassing the opening 20 .
  • there will be multiple arc-shaped effective metal traces that is, arc traces R) at the second non-display area 28 for connecting the corresponding data lines D1-D4 and gate lines G1-G4.
  • touch signal lines RX1-RX6 touch signal lines
  • FIG. 4 is an enlarged schematic diagram of a portion B of the display panel 2 of FIG. 1, which specifically shows a design schematic diagram of the touch signal lines of the display panel 2 at the second non-display area 28.
  • FIG. 4 is described by using six sensor pads near the opening 20 as an example.
  • each sensing pad is connected to a corresponding touch signal line RX1-RX6 through a hole to realize a touch function.
  • the number of connection holes of each sensing pad is generally kept as consistent as possible.
  • the three sensing pads from the top to the bottom are respectively connected to the touch signal line RX1, the touch signal line RX2, and the touch signal line RX3.
  • the three sensor pads in the second row are respectively connected to the touch signal line RX6 and the touch signal line from top to bottom.
  • the control signal line RX5 and the touch signal line RX4 are connected.
  • the touch scheme is usually optimized in the second non-display area 28.
  • the number of connection holes between the sensor pads near the opening 20 and the touch signal lines RX3 and RX4 is consistent.
  • the first touch signal line RX3 and the second touch signal line RX4 to ensure the uniformity of the design of the entire touch signal lines RX3 and RX4, it is not displayed in the second non-display.
  • Area 28 is usually an arc-shaped line R, that is, arranged in an arc-shaped manner.
  • first touch signal line RX3 and the second touch signal line RX4 are arranged to pass through the display area 21 and the second non-display area 28, and both ends terminate in the display area 21.
  • the portion of the first touch signal line RX3 in the display area 21 is a straight line parallel to the data lines D1-D4 (see FIG. 3), and the portion of the first touch signal line RX3 in the second non-display area 28 It is also an arc-shaped wire R, which is curved in an arc.
  • the second touch signal line RX4 is symmetrical to each other with respect to a vertical line (a vertical line parallel to the data lines D1-D4) passing through the center of the opening 20, and the first touch signal line RX3 and the second touch signal line RX4 are symmetrical to each other. Settings to ensure uniformity of touch performance.
  • the display panel 2 also includes an anti-static discharge protection circuit, which is arranged near the opening 20 to improve the anti-ESD capability of the touch signal lines RX3 and RX4 at the second non-display area 28, thereby ensuring the The reliability of the display panel 2 having the openings 20 in the display area.
  • the anti-static discharge protection circuit is implemented by a ring-shaped and closed floating metal trace 29.
  • the floating metal wiring 29 is disposed outside the opening 20 and is located in the second non-display area 28.
  • the floating metal wiring 29 can be a single-layer wiring, a double-layer wiring, or a three-layer wiring, which is not limited. herein.
  • the function of the ground wire 23 in the first non-display area 22 can be achieved by setting the floating metal traces 29, which can protect the wiring in the second non-display area 28 during the ESD test, and to a certain extent The anti-ESD capability of the second non-display area 28 is improved, thereby improving the reliability of the display panel 2.
  • FIG. 5 is a partial schematic diagram of a display panel 3 according to a second preferred embodiment of the present disclosure.
  • the display panel 3 of the second preferred embodiment is also a display panel with an opening design in the display area, and its structure is substantially the same as that of the display panel 2 of the first preferred embodiment. The differences between the two are described below.
  • the display panel 3 also includes an anti-static discharge protection circuit 39, which is disposed near the opening 30 to improve the anti-ESD capability of the touch signal lines RX7 and RX8 at the second non-display area 38, thereby ensuring that the display area has Reliability of the display panel 3 of the opening 30.
  • the ESD protection circuit 39 includes a ring-shaped and closed floating metal trace 391, a first dummy touch signal line 392, and a second dummy touch signal line 393.
  • a virtual touch signal line 392 and a second virtual touch signal line 393 are connected to the floating metal trace 391 and the ground line 33.
  • the floating metal trace 391 is disposed at the periphery of the opening 30 and is located in the second non-display area 38.
  • the floating metal trace 391 may be a single-layer trace, a double-layer trace, Layer routing is not limited to this.
  • the display panel 3 further includes a third touch signal line RX7 and a fourth touch signal line RX8, which extend straight along the direction of the parallel data line, and the third touch signal line RX7 and One end of the fourth touch signal line RX8 terminates in the display area 31, and the other end terminates in the second non-display area 38.
  • the third touch signal line RX7 and the first virtual touch signal line 392 are in the same linear position
  • the fourth touch signal line RX8 and the second virtual touch signal line 393 are in the same line.
  • the second virtual touch signal line 393 is parallel to the first virtual touch signal line 392 and separated by a distance D
  • the fourth touch signal line RX8 and the third touch signal line RX7 are parallel and separated by the same distance D.
  • a floating metal trace 391 of the ESD protection circuit 39 and the first non-display area located at the outermost periphery of the display panel 3 are utilized at the second non-display area 38.
  • the ground wires 33 are connected, that is, the grounding design scheme is implemented in the second non-display area 38, which greatly improves the anti-ESD capability at the second non-display area 38 and improves the reliability of the display panel 3.
  • the touch solution is usually optimized at the second non-display area 38, specifically through the touch signal lines RX7 and RX8 at the second non-display area 38
  • the mirror design is adopted to ensure the consistency of the number of the connection holes between the sensor pad and the touch signal near the opening 30.
  • this design scheme for the two touch signal lines of the fourth touch signal line RX8 and the third touch signal line RX7, in order to ensure the uniformity of the design of the entire touch signal line, and without affecting the touch Under the premise of controlling performance, this embodiment uses the fourth touch signal line RX8 at the second non-display area 38 to be disconnected from the third touch signal line RX7, which can ensure the fourth touch signal line RX8 in the original design.
  • the present disclosure achieves a ground line at the outer border of the display panel (that is, the first non-display area) by adding a circle of metal traces at the outer periphery of the opening (that is, the second non-display area).
  • the function further protects the traces located at the second non-display area around the opening from being damaged during the ESD reliability test.
  • the one-ring metal trace is connected with the ground wire at the outer frame of the display panel to improve the anti-ESD resistance of the touch signal line at the second non-display area, thereby ensuring that the Reliability of the display panel.

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Human Computer Interaction (AREA)
  • Microelectronics & Electronic Packaging (AREA)

Abstract

一种显示面板（2），包含：一显示区（21），设置有阵列排布的多个显示单元；一第一非显示区（22），围绕显示区（21）；一开孔（20），开设在显示区（21）内的区域；一第二非显示区（28），位在显示区（21）与开孔（20）之间，且在第二非显示区（28）内设置有多条弧形走线（R），用于分别连接对应的数据线（D）、栅极线（G）、和触控信号线（RX）；以及一防静电放电保护电路（39），包含一浮接金属走线（391），其中浮接金属走线（391）设置于开孔（20）之***并且位在第二非显示区（28）内。通过在第二非显示区（28）设置防静电放电保护电路（39），以提升第二非显示区（28）处触控信号线（RX）的抗ESD能力，进而保证了在显示区（21）内具有开孔（20）的显示面板（2）的可靠性。

Description

显示面板 技术领域
本揭示涉及一种显示面板，特别是涉及一种在显示区内具有开孔设计的显示面板。
 背景技术
为实现整机的全面屏设计和保留正面摄像头布置位置，现已发展出一种在显示区(Active Area)内具有开孔设计的显示面板。请参照图1，其显示一种现有的在显示区内具有开孔10设计的显示面板1的示意图。开孔10是设置在显示面板1的上板面，即，在上板面内对应前置摄像头的位置去掉部分显示单元。在现行的开孔设计方案中，通常是以圆形的开孔10设计方式去掉部分显示单元，同时在开孔10周围设计边框11，其相似于左右边框的非显示区以提供相关传输线设置。相比于常见的具有凹槽(notch)的异形(非矩形)面板，显示面板1增加一圈圆形边框11，进而增加可靠性测试失效的风险，例如显示面板1在进行静电放电(Electrostatic discharge，ESD)测试时，测试失效的风险。
由于开孔10设计会去掉部分显示单元，为保证除了开孔10处以外的位置均可正常显示，需要在边框11处对数据线(data line)、栅极线(gate line)以及触控信号线(TP signal line)等走线进行优化设计。通常是通过在边框11处设置弧形走线的方式使得栅极线能通过对应的弧形走线绕过开孔10处而左右连接、数据线能通过对应的弧形走线绕过开孔10处而上下连接、以及触控信号线能通过对应的弧形走线绕过开孔10处而上下连接。基于现在的设计方案，边框11处存在连接数据线、栅极线以及触控信号线等呈弧形弯曲的有效金属走线，其占据大部分边框11设计空间。而且边框11通常采用窄边框设计且占据显示面板1的部分显示区，导致在边框11处不能存在像左右边框处那样的接地线设计来保护金属走线不会因ESD测试时显示面板1内部积累过多的静电而导致线路炸伤，特别是在ESD可靠性测试中，边框11处的抗ESD能力较弱。此外，在追求全面屏、极致窄边框设计的时代，围绕开孔10处的边框11也会被压缩，对可靠性测试提出更高的要求（边框11处ESD测试）进而增加面板设计的难度。
有鉴于此，有必要提出一种显示面板，以解决现有技术中存在的问题。
 技术问题
为解决上述现有技术的问题，本揭示的目的在于提供一种在显示区内具有开孔设计的显示面板，通过在开孔的外周围的非显示区设置防静电放电保护电路，以提升设置在靠近开孔处的触控信号线的抗ESD能力，进而保证了在显示区内具有开孔的显示面板的可靠性。
 技术解决方案
为达成上述目的，本揭示提供一种显示面板，包含：一显示区，设置有阵列排布的多个显示单元；一第一非显示区，围绕所述显示区；一开孔，开设在所述显示区内的区域；一第二非显示区，位在所述显示区与所述开孔之间，且在所述第二非显示区内设置有多条弧形走线，用于连接对应的数据线、栅极线、或触控信号线；以及一防静电放电保护电路，包含一环形且封闭的浮接金属走线，其中所述浮接金属走线设置于所述开孔之***并且位在所述第二非显示区内；以及其中所述显示面板还包含一第一触控信号线，且所述第一触控信号线之一部分设置在所述显示区和另一部分设置在所述第二非显示区，且所述第一触控信号线的两端皆终止在所述显示区。
本揭示还提供一种显示面板，包含：一显示区，设置有阵列排布的多个显示单元；一第一非显示区，围绕所述显示区；一开孔，开设在所述显示区内的区域；一第二非显示区，位在所述显示区与所述开孔之间，且在所述第二非显示区内设置有多条弧形走线，用于连接对应的数据线、栅极线、或触控信号线；以及一防静电放电保护电路，包含一环形且封闭的浮接金属走线，其中所述浮接金属走线设置于所述开孔之***并且位在所述第二非显示区内；以及其中在所述第一非显示区内设置有一接地线，以及所述防静电放电保护电路还包含一第一虚拟触控信号线，连接所述浮接金属走线和所述接地线。
本揭示还提供一种显示面板，包含：一显示区，设置有阵列排布的多个显示单元；一第一非显示区，围绕所述显示区；一开孔，开设在所述显示区内的区域；一第二非显示区，位在所述显示区与所述开孔之间，且在所述第二非显示区内设置有多条弧形走线，用于连接对应的数据线、栅极线、或触控信号线；以及一防静电放电保护电路，包含一浮接金属走线，其中所述浮接金属走线设置于所述开孔之***并且位在所述第二非显示区内。
本揭示其中之一优选实施例中，所述浮接金属走线为环形且封闭的走线。
本揭示其中之一优选实施例中，所述显示面板还包含一第一触控信号线，且所述第一触控信号线之一部分设置在所述显示区和另一部分设置在所述第二非显示区，且所述第一触控信号线的两端皆终止在所述显示区。
本揭示其中之一优选实施例中，所述第一触控信号线之位在所述显示区的部分为与所述数据线平行的直线，以及所述第一触控信号线之位在所述第二非显示区的部分呈弧形弯曲。
本揭示其中之一优选实施例中，所述显示面板还包含一第二触控信号线，设置为通过所述显示区和所述第二非显示区，且所述第一触控信号线和所述第二触控信号线相对于通过所述开孔的中心的垂直线彼此对称设置。
本揭示其中之一优选实施例中，在所述第一非显示区内设置有一接地线，以及所述防静电放电保护电路还包含一第一虚拟触控信号线，连接所述浮接金属走线和所述接地线。
本揭示其中之一优选实施例中，所述显示面板还包含一第三触控信号线，其沿着平行所述数据线的方向直线延伸，且所述第三触控信号线的一端终止在所述显示区，以及另一端终止在所述第二非显示区。
本揭示其中之一优选实施例中，所述第三触控信号线与所述第一虚拟触控信号线位在同一条直线位置上。
本揭示其中之一优选实施例中，所述防静电放电保护电路还包含一第二虚拟触控信号线，连接所述浮接金属走线和所述接地线，以及所述第二虚拟触控信号线与所述第一虚拟触控信号线平行且相隔一距离。
本揭示其中之一优选实施例中，所述显示面板还包含一第四触控信号线，其与所述第三触控信号线平行且相隔相同的所述距离，并且所述第四触控信号线与所述第二虚拟触控信号线位在同一条直线位置上。
 有益效果
相较于先前技术，本揭示通过在开孔的外周围处(即第二非显示区)增加一圈金属走线，以实现如同显示面板的外边框处(即第一非显示区)的接地线的功能，进而起到保护位在开孔***的第二非显示区处的走线不会在ESD可靠性测试时被炸伤。进一步地，将所述一圈金属走线与显示面板的外边框处的接地线连接起来，以提升第二非显示区处触控信号线的抗ESD能力，进而保证了在显示区内具有开孔的显示面板的可靠性。
 附图说明
图1显示一种现有的在显示区内具有开孔的显示面板的示意图；
图2显示本揭示的第一优选实施例的显示面板的示意图；
图3显示图1的显示面板的A部分的放大示意图，显示在第二非显示区处数据线和栅极线的设计示意图；
图4显示图1的显示面板的B部分的放大示意图；以及
图5显示本揭示的第二优选实施例的显示面板的局部示意图。
 本发明的最佳实施方式
为了让本揭示的上述及其他目的、特征、优点能更明显易懂，下文将特举本揭示优选实施例，并配合所附图式，作详细说明如下。
请参照图2，其显示本揭示的第一优选实施例的显示面板2的示意图，其具体显示在显示区内具有开孔的显示面板2的触控方案以及相关走线设计示意图。本揭示的显示面板2是为了实现整机的全面屏设计和保留正面摄像头布置位置而提供，其中显示面板2在上板面的位置设置有开孔20，即，设置在对应前置摄像头的位置。并且，显示面板2可为LCD、OLED等，以及可应用在手机、显示器、电视等领域中。显示面板2包含显示区21和第一非显示区22，第一非显示区22围绕所述显示区21，且位在显示面板2的最外侧边框处。显示区21内设置有阵列排布的多个显示单元C，以及开孔20是开设在显示区21内。应当注意的是，在显示面板2的A部分以外的区域中，显示单元C一般为矩形设计，以及在A部分的区域中，为配合开孔20设计，显示单元C通常进行异形(非矩形)化设计来满足触控性能要求，即按照开孔20处的轮廓图进行异形设计。
如图2所示，在第一非显示区22中设置有接地线23(即GND)，其设计用来保护位于周围边框处的电路。具体来说，接地线23通常为一圈金属走线以起到保护边框处电路的功效，进而提高显示面板2整体抗ESD能力。此外，显示面板2上定义有显示区边界24、彩色滤光片边界25和薄膜晶体管边界26，其中彩色滤光片边界25位在显示区边界24与薄膜晶体管边界26之间。
请参照图3，其显示图1的显示面板2的A部分的放大示意图，具体显示在靠近开孔20处数据线D1-D4和栅极线G1-G4的设计示意图。显示面板2还包含第二非显示区28，位在显示区21与开孔20之间，其尺寸由面板边界27和显示区边界24来定义。由于显示面板2具有开孔20设计，故部分的显示单元会被去除，为保证除了开孔20处以外的位置均可正常显示，需要在第二非显示区28处对数据线(data line)D1-D4、栅极线(gate line)G1-G4以及触控信号线(TP signal line)RX1-RX6等走线进行优化设计。通常是采用在第二非显示区28上设置弧形走线R的方式使得栅极线G1-G4能通过对应的弧形走线R绕过开孔20处而左右连接、数据线D1-D4能通过对应的弧形走线R绕过开孔20处而上下连接、以及触控信号线RX1-RX6(参照图4)能通过对应的弧形走线R绕过开孔20处而上下连接。基于此设计方案，第二非显示区28处会存在多条呈弧形弯曲的有效金属走线(即弧形走线R)用于连接对应的数据线D1-D4、栅极线G1-G4以及触控信号线RX1-RX6等。
请参照图4，其显示图1的显示面板2的B部分的放大示意图，其具体显示显示面板2在第二非显示区28处的触控信号线的设计示意图。图4是以靠近开孔20处的6个传感垫(Sensor Pad)为例进行说明。在此触控传感设计方案中每个传感垫通过孔与对应的触控信号线RX1-RX6连接以实现触控功能。为保证触控功能的灵敏度和精确度，通常每个传感垫的连接孔数量尽可能保持一致。以触控信号线RX1为例，其从上到下的三个传感垫分别与触控信号线RX1、触控信号线RX2、触控信号线RX3连接。并且，为保证靠近开孔20处传感垫与触控信号线RX1-RX6的连接孔数量的一致性，第二列的三个传感垫从上到下分别与触控信号线RX6、触控信号线RX5、触控信号线RX4连接。
如图4所示，在第二非显示区28处，为保证触控性能的均一性，通常在第二非显示区28处对触控方案进行优化处理。具体来说，通过在第二非显示区28处将触控信号线RX3、RX4采用镜像设计以保证靠近开孔20处的传感垫与触控信号线RX3、RX4的连接孔数量的一致性。此外，对于第一触控信号线RX3和第二触控信号线RX4这两根触控信号线来说，为保证整根触控信号线RX3、RX4设计的均一性，其在第二非显示区28处通常为弧形走线R，即以弧形弯曲的方式设置。进一步说明，第一触控信号线RX3和第二触控信号线RX4设置为通过显示区21和第二非显示区28，且两端皆终止在显示区21。第一触控信号线RX3之位在显示区21的部分为与数据线D1-D4(参照图3)平行的直线，以及第一触控信号线RX3之位在第二非显示区28的部分同样为弧形走线R，即呈弧形弯曲。又，第二触控信号线RX4相对于通过开孔20的中心的垂直线(与数据线D1-D4平行的垂直线)，第一触控信号线RX3和第二触控信号线RX4彼此对称设置，如此保证触控性能的均一性。
如图4所示，显示面板2还包含防静电放电保护电路，设置在靠近开孔20的位置，以提升第二非显示区28处触控信号线RX3、RX4的抗ESD能力，进而保证了在显示区内具有开孔20的显示面板2的可靠性。在本实施例中，防静电放电保护电路是以一圈环形且封闭的浮接(floating)金属走线29来实现。浮接金属走线29设置于开孔20之***并且位在第二非显示区28内，其中浮接金属走线29可以为单层走线、双层走线、三层走线，不局限于此。通过浮接金属走线29的设置可以实现如位在第一非显示区22的接地线23的功能，起到在ESD测试时保护第二非显示区28处的走线，并且在一定程度上提高第二非显示区28处抗ESD能力，进而提升显示面板2的可靠性。
 本发明的实施方式
请参照图5，其显示本揭示的第二优选实施例的显示面板3的局部示意图。第二优选实施例的显示面板3同样为在显示区内具有开孔设计的显示面板，其结构大致与第一优选实施例的显示面板2相同，两者的差异说明如下。显示面板3还包含防静电放电保护电路39，设置在靠近开孔30的位置，以提升第二非显示区38处触控信号线RX7、RX8的抗ESD能力，进而保证了在显示区内具有开孔30的显示面板3的可靠性。在本实施例中，防静电放电保护电路39包含一圈环形且封闭的浮接金属走线391、第一虚拟(dummy)触控信号线392、和第二虚拟触控信号线393，其中第一虚拟触控信号线392和第二虚拟触控信号线393连接浮接金属走线391和接地线33。
如图5所示，浮接金属走线391设置于开孔30之***并且位在第二非显示区38内，其中浮接金属走线391可以为单层走线、双层走线、三层走线，不局限于此。通过浮接金属走线391的设置可以实现如位在显是面板3最***的第一非显示区的接地线33的功能，起到在ESD测试时保护第二非显示区38处的走线，并且在一定程度上提高第二非显示区38处抗ESD能力，进而提升显示面板3的可靠性。
再者，如图5所示，显示面板3还包含第三触控信号线RX7和第四触控信号线RX8，其沿着平行数据线的方向直线延伸，并且第三触控信号线RX7和第四触控信号线RX8的一端终止在显示区31，以及另一端终止在第二非显示区38。应当注意的是，第三触控信号线RX7与第一虚拟触控信号线392位在同一条直线位置上，以及第四触控信号线RX8与第二虚拟触控信号线393位在同一条直线位置上。并且，第二虚拟触控信号线393与第一虚拟触控信号线392平行且相隔一距离D，以及第四触控信号线RX8与第三触控信号线RX7平行且相隔相同的距离D。
如图5所示，通过优化设计，利用在第二非显示区38处将防静电放电保护电路39的一圈浮接金属走线391与位在显是面板3最***的第一非显示区的接地线33连接起来，即在第二非显示区38实现接地设计方案，极大地提升第二非显示区38处抗ESD能力，提高显示面板3的可靠性。进一步来说，为保证触控性能的均一性，通常会在第二非显示区38处对触控方案进行优化处理，具体是通过在第二非显示区38处的触控信号线RX7、RX8采用镜像设计，以保证靠近开孔30处的传感垫与触控信号的连接孔数量的一致性。在这种设计方案中，对于第四触控信号线RX8与第三触控信号线RX7两根触控信号线来说，为保证整根触控信号线设计的均一性，以及在不影响触控性能的前提下，本实施例采用将第二非显示区38处的第四触控信号线RX8与第三触控信号线RX7断开，其可以保证原设计中第四触控信号线RX8与第三触控信号线RX7与传感垫的连接性。另一方面通过将浮接金属走线391与位在显是面板3最***的第一非显示区的接地线33连接起来，有效地提升第二非显示区38处的浮接金属走线391的抗GND功能，进而提升第二非显示区38处触控信号线RX7、RX8的抗ESD能力，保证了在显示区内具有开孔的显示面板3的可靠性。
综上所述，本揭示通过在开孔的外周围处(即第二非显示区)增加一圈金属走线，以实现如同显示面板的外边框处(即第一非显示区)的接地线的功能，进而起到保护位在开孔***的第二非显示区处的走线不会在ESD可靠性测试时被炸伤。进一步地，将所述一圈金属走线与显示面板的外边框处的接地线连接起来，以提升第二非显示区处触控信号线的抗ESD能力，进而保证了在显示区内具有开孔的显示面板的可靠性。
以上仅是本揭示的优选实施方式，应当指出，对于所属领域技术人员，在不脱离本揭示原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本揭示的保护范围。

Claims (18)

  1. 一种显示面板，包含：
    一显示区，设置有阵列排布的多个显示单元；
    一第一非显示区，围绕所述显示区；
    一开孔，开设在所述显示区内的区域；
    一第二非显示区，位在所述显示区与所述开孔之间，且在所述第二非显示区内设置有多条弧形走线，用于连接对应的数据线、栅极线、或触控信号线；以及
    一防静电放电保护电路，包含一环形且封闭的浮接金属走线，其中所述浮接金属走线设置于所述开孔之***并且位在所述第二非显示区内；以及
    其中所述显示面板还包含一第一触控信号线，且所述第一触控信号线之一部分设置在所述显示区和另一部分设置在所述第二非显示区，且所述第一触控信号线的两端皆终止在所述显示区。
  2. 如权利要求1的显示面板，其中所述第一触控信号线之位在所述显示区的部分为与所述数据线平行的直线，以及所述第一触控信号线之位在所述第二非显示区的部分呈弧形弯曲。
  3. 如权利要求2的显示面板，其中所述显示面板还包含一第二触控信号线，设置为通过所述显示区和所述第二非显示区，且所述第一触控信号线和所述第二触控信号线相对于通过所述开孔的中心的垂直线彼此对称设置。
  4. 一种显示面板，包含：
    一显示区，设置有阵列排布的多个显示单元；
    一第一非显示区，围绕所述显示区；
    一开孔，开设在所述显示区内的区域；
    一第二非显示区，位在所述显示区与所述开孔之间，且在所述第二非显示区内设置有多条弧形走线，用于连接对应的数据线、栅极线、或触控信号线；以及
    一防静电放电保护电路，包含一环形且封闭的浮接金属走线，其中所述浮接金属走线设置于所述开孔之***并且位在所述第二非显示区内；以及
    其中在所述第一非显示区内设置有一接地线，以及所述防静电放电保护电路还包含一第一虚拟触控信号线，连接所述浮接金属走线和所述接地线。
  5. 如权利要求4的显示面板，其中所述显示面板还包含一第三触控信号线，其沿着平行所述数据线的方向直线延伸，且所述第三触控信号线的一端终止在所述显示区，以及另一端终止在所述第二非显示区。
  6. 如权利要求5的显示面板，其中所述第三触控信号线与所述第一虚拟触控信号线位在同一条直线位置上。
  7. 如权利要求6的显示面板，其中所述防静电放电保护电路还包含一第二虚拟触控信号线，连接所述浮接金属走线和所述接地线，以及所述第二虚拟触控信号线与所述第一虚拟触控信号线平行且相隔一距离。
  8. 如权利要求7的显示面板，其中所述显示面板还包含一第四触控信号线，其与所述第三触控信号线平行且相隔相同的所述距离，并且所述第四触控信号线与所述第二虚拟触控信号线位在同一条直线位置上。
  9. 一种显示面板，包含：
    一显示区，设置有阵列排布的多个显示单元；
    一第一非显示区，围绕所述显示区；
    一开孔，开设在所述显示区内的区域；
    一第二非显示区，位在所述显示区与所述开孔之间，且在所述第二非显示区内设置有多条弧形走线，用于连接对应的数据线、栅极线、或触控信号线；以及
    一防静电放电保护电路，包含一浮接金属走线，其中所述浮接金属走线设置于所述开孔之***并且位在所述第二非显示区内。
  10. 如权利要求9的显示面板，其中所述浮接金属走线为环形且封闭的走线。
  11. 如权利要求9的显示面板，其中所述显示面板还包含一第一触控信号线，且所述第一触控信号线之一部分设置在所述显示区和另一部分设置在所述第二非显示区，且所述第一触控信号线的两端皆终止在所述显示区。
  12. 如权利要求11的显示面板，其中所述第一触控信号线之位在所述显示区的部分为与所述数据线平行的直线，以及所述第一触控信号线之位在所述第二非显示区的部分呈弧形弯曲。
  13. 如权利要求12的显示面板，其中所述显示面板还包含一第二触控信号线，设置为通过所述显示区和所述第二非显示区，且所述第一触控信号线和所述第二触控信号线相对于通过所述开孔的中心的垂直线彼此对称设置。
  14. 如权利要求9的显示面板，其中在所述第一非显示区内设置有一接地线，以及所述防静电放电保护电路还包含一第一虚拟触控信号线，连接所述浮接金属走线和所述接地线。
  15. 如权利要求14的显示面板，其中所述显示面板还包含一第三触控信号线，其沿着平行所述数据线的方向直线延伸，且所述第三触控信号线的一端终止在所述显示区，以及另一端终止在所述第二非显示区。
  16. 如权利要求15的显示面板，其中所述第三触控信号线与所述第一虚拟触控信号线位在同一条直线位置上。
  17. 如权利要求16的显示面板，其中所述防静电放电保护电路还包含一第二虚拟触控信号线，连接所述浮接金属走线和所述接地线，以及所述第二虚拟触控信号线与所述第一虚拟触控信号线平行且相隔一距离。
  18. 如权利要求17的显示面板，其中所述显示面板还包含一第四触控信号线，其与所述第三触控信号线平行且相隔相同的所述距离，并且所述第四触控信号线与所述第二虚拟触控信号线位在同一条直线位置上。
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