WO2020062425A1 - 一种显示面板和显示装置 - Google Patents

一种显示面板和显示装置 Download PDF

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Publication number
WO2020062425A1
WO2020062425A1 PCT/CN2018/113368 CN2018113368W WO2020062425A1 WO 2020062425 A1 WO2020062425 A1 WO 2020062425A1 CN 2018113368 W CN2018113368 W CN 2018113368W WO 2020062425 A1 WO2020062425 A1 WO 2020062425A1
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Prior art keywords
line
common
electrode layer
gate electrode
signal line
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Ceased
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PCT/CN2018/113368
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English (en)
French (fr)
Inventor
黄北洲
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HKC Co Ltd
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HKC Co Ltd
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Priority to US16/320,089 priority Critical patent/US11526058B2/en
Publication of WO2020062425A1 publication Critical patent/WO2020062425A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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
    • G02F1/136259—Repairing; Defects
    • 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
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • 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
    • G02F1/136259—Repairing; Defects
    • G02F1/136263—Line defects
    • 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
    • G02F1/136259—Repairing; Defects
    • G02F1/136268—Switch defects
    • 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
    • G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device
    • 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
    • G02F1/13629—Multilayer wirings

Definitions

  • the present application relates to the field of display technology, and more particularly, to a display panel and a display device.
  • the liquid crystal display has many advantages such as a thin body, power saving, and no radiation, and has been widely used.
  • Most of the liquid crystal displays on the market are backlit liquid crystal displays, which include a liquid crystal panel and a backlight module.
  • the working principle of a liquid crystal panel is to place liquid crystal molecules in two parallel glass substrates, and apply a driving voltage to the two glass substrates to control the rotation direction of the liquid crystal molecules so as to refract the light of the backlight module to generate a picture.
  • the purpose of this application is to provide a display panel and a display device to solve the problem that the signal of the signal line cannot be normally transmitted after the active switch is disconnected.
  • the present application provides a display panel, where the display panel includes a substrate;
  • the substrate includes a first gate electrode layer, a second gate electrode layer and a third gate electrode layer, a common electrode line, an active switch, and a signal line; the first gate electrode layer and the second gate electrode layer And the third gate electrode layer are arranged in order from top to bottom, the common electrode line connects the first gate electrode layer and the third gate electrode layer, and passes through the second gate electrode layer, the second gate electrode layer
  • the electrode layer is connected to the active switch.
  • the common electrode line includes a main line, a first extension line, and a second extension line.
  • the signal line overlaps with the active switch.
  • the overlapping portion is a first overlapping area.
  • the second extension line is connected to the signal lines at both ends of the first overlapping area to form a second overlapping area and a third overlapping area.
  • the signal line includes a first signal line and a second signal line, and the second signal line is an outward extension line of the first signal line; the second signal line is connected to the first extension line, and A second overlapping area is formed outside the first signal line.
  • the common electrode line main line includes a first common section line, a second common section line, and a connection block, the first common section line overlaps a second gate electrode layer, and the connection block is a common electrode line A portion in contact with the first gate electrode layer;
  • the second common intercept line is connected to the connection block and the first common intercept line, and the second common intercept line is parallel to and oblique to a portion corresponding to the second gate electrode layer Line;
  • the first extension line is connected to the intersection of the first common stub and the second common stub.
  • the first extension line includes an outer convex line, the outer convex line is located between the second common stub and the active switch, and the protruding direction is toward the active switch.
  • the first extension line includes a vertical line, one end of the vertical line is connected to a convex line, and the other end overlaps with a second signal line, and the convex line and the vertical line are not on a straight line,
  • the vertical line is kept on the same straight line as the first common stub, and is not an extension of the convex line. Therefore, the distance between the vertical line and the first signal line is greater than the distance between the convex line and the body of the first signal line.
  • the main line of the common electrode line is parallel to an edge corresponding to the second gate electrode layer.
  • the signal line includes a third signal line, and the third signal line is an outward extension line of the first signal line; the third signal line is connected to the second extension line and is outside the first signal line A third overlapping area is formed.
  • the main line of the common electrode line includes a second common line, a third common line, and a fourth common line.
  • the second common line is the portion of the main line closest to the active switch, and the fourth common line.
  • the stub is the lowermost part of the main line.
  • the third common stub connects the second and fourth common stubs and is inclined away from the third signal line.
  • the second extension line connects the third stub. And the third signal line.
  • the display panel includes a first cutting area, a second cutting area, a third cutting area, and a fourth cutting area, and the [font unified] the first cutting area and the second cutting area are disposed in the The third cutting region and the fourth cutting region are disposed on the signal line at both ends of the first overlapping region on the common electrode line, and the cut signal line and the common signal line form a communication circuit.
  • the overlapping portions in the second overlapping area and the third overlapping area are connected by welding.
  • the cross-sectional area of each cutting area is larger than the diameter of the light spot during laser cutting.
  • the main line of the common electrode line includes a first common section line, a second common section line, and a connection block; the first common section line overlaps the second gate electrode layer, and the connection block is A portion where the common electrode line is in contact with the first gate electrode layer; the second common section line is connected to the connection block and the first common section line, and the second common section line is connected to the first
  • the corresponding portions of the two gate electrode layers are parallel and oblique; the third cutting region is disposed on the second common intercept line.
  • the main line of the common electrode line includes a second common section line, a third common section line, and a fourth common section line; an orthographic projection of the second common section line overlaps the active switch, and the fourth
  • the common cut line is the lowermost part of the main line, the third common cut line connects the second common cut line and the fourth common cut line, and the fourth cutting area is provided at the fourth common cut line on-line.
  • the fourth common stub is convex outward from the second gate electrode layer.
  • the present application also discloses a method for manufacturing a display panel, comprising: connecting the common electrode line to the first gate electrode layer and the third gate electrode layer;
  • Overlapping the signal line with the active switch, and the overlapping portion is a first overlapping area
  • the present application also discloses a display device.
  • the display device includes the above display panel and a driving circuit for driving the display panel.
  • the signal lines at both ends of the overlap region can be cut off. It is in contact with the signal line, and the signal is continuously transmitted, so that the information of the signal line can be passed to the pixel electrodes in the next row.
  • FIG. 1 is a schematic diagram of a known sub-pixel light point becoming a dark point
  • FIG. 2 is a schematic diagram of local repair of a known pixel
  • 3 is a schematic diagram of repairing after adding a known sub-pixel TFT
  • FIG. 4 is a schematic diagram of an active switch array used in an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a part of an active switch array used in one embodiment of the present application.
  • FIG. 6 is a schematic diagram of an active switch array after repairing in one embodiment of the present application.
  • FIG. 7 is a schematic diagram of a manufacturing process of a display panel in one embodiment of the present application.
  • FIG. 8 is a schematic diagram of a display device in one embodiment of the present application.
  • the active switch needs to design multiple traces reserved for laser cutting repair. This design needs to consider the light required for laser cutting. The point size and cutting path take up more design space.
  • the design used in this application is mainly applied to the pixel where the active switch is merged with the signal line. If the active switch needs to be repaired after an abnormality occurs after it is manufactured, the drain of the active switch with the abnormality needs to be opened.
  • a display panel 30 is disclosed.
  • the display panel 30 includes a substrate 40.
  • the substrate 40 includes a first gate electrode layer 1 and a second gate.
  • the common electrode line 4 includes a main line 7, a first extension line 8, and a second extension line 9.
  • the signal line 6 overlaps with the active switch 5.
  • the overlapping portion is a first overlap area 20.
  • the second extension line 9 is connected to the signal lines 6 at both ends of the first overlapping area 20 to form a second overlapping area 21 and a third overlapping area 22.
  • the signal line 6 includes a first signal line 17 and a second signal line 18, and the second signal line 18 is an outward extension line of the first signal line 17; the second signal line 18 and the first extension line 8 Connected to form a second overlapping area 21 outside the first signal line 17.
  • the first extension line 8 and the second signal line 18 are not connected after being overlapped to avoid being affected when the pixel electrode is normal, but when the pixel electrode is abnormal and needs to be repaired, the first An extension line 8 and a second signal line 18 are to be welded together. If the first extension line 8 is connected to the first signal line 17, after the signal line 6 is cut, the cut path is relatively small, and it is easy to make the welded part. It is connected to the cut signal line 6 partly, so a second cut is needed to make repair work cumbersome. Therefore, a second signal line 18 extending outward is added to the first signal line 17, and the first extension line 8 is in A second overlapping area 21 is formed outside the first signal line 17.
  • the common electrode line 4 main line 7 includes a first common section line 10, a second common section line 11, and a connection block.
  • the first common section line 10 overlaps the second gate electrode layer 2.
  • the connection block is a portion where the common electrode line 4 is in contact with the first gate electrode layer 1;
  • the second common section line 11 is connected to the connection block and the first common section line 10, and the second common section line 11 is parallel to the portion corresponding to the second gate electrode layer 2 and is an oblique line; the first extension The line 8 is connected to the intersection of the first common stub 10 and the second common stub 11.
  • the first extension line 8 includes an outer convex line 15.
  • the outer convex line 15 is located between the second common stub line 11 and the active switch 5, and the protruding direction is toward the active switch 5.
  • the outer convex line 15 is located between the second common stub line 11 and the active switch 5, and the protruding direction is toward the active switch 5. Therefore, there is a large gap between the outer convex line 15 and the second common stub line 11. Space, when the pixel display is abnormal and the second common stub line 11 needs to be cut, it will not affect the convex line 15.
  • the first extension line 8 includes a vertical line 16. One end of the vertical line 16 is connected to the outer convex line 15, and the other end overlaps the second signal line 18.
  • the outer convex line 15 and The vertical line 16 is not on a straight line.
  • the vertical line 16 and the first common stub line 10 are kept on the same straight line. It is not an extension of the convex line 15 and therefore the distance from the first signal line 17 is greater than The distance between the convex line 15 and the main body of the first signal line 17.
  • the main line 7 of the common electrode line 4 is parallel to the edge corresponding to the second gate electrode layer 2.
  • the signal line 6 includes a third signal line 19, and the third signal line 19 is an extension line extending outward from the first signal line 17; the third signal line 19 and the second extension line 9 Connected to form a third overlapping area 22 outside the first signal line 17.
  • the second overlapping area 21 and the third overlapping area 22 are both outside the first signal line 17. After the second overlapping area 21 and the third overlapping area 22 are welded, the entire repair work does not need to be cut.
  • the repair process is simple.
  • the main line 7 of the common electrode line 4 includes a second common section line 11, a third common section line 12, and a fourth common section line 13, and the second common section line 11 is closest to the main line 7
  • the fourth common intercept line 13 is the lowermost part of the main line 7.
  • the third common intercept line 12 connects the second common intercept line 11 and the fourth common intercept line 13, and faces away from the third signal.
  • the line 19 is inclined; the second extension line 9 connects the third common stub 12 and the third signal line 19.
  • the second extension line 9 is extended from the third common stub line 12 inclined away from the third signal line 19, and there is a large space between the first extension line 9 and the first signal line 17.
  • the line 17 When the line 17 is cut, it does not affect the third common stub 12; it is reasonable to say that the second extension line 9 extends from below the second common stub 11 and is most convenient, but this will make the second extension 9 and the first The interval between the signal lines 17 becomes smaller, which makes repairing inconvenient.
  • the display panel 30 includes a first cutting region 61, a second cutting region 62, a third cutting region 63, and a fourth cutting region 64.
  • the first cutting region 61 and the second cutting region. 62 is provided on the signal line 6 at both ends of the first overlapping area 20, the third cutting area 63 and the fourth cutting area 64 are provided on the common electrode line 4, and the cut signal line 6 A circuit connected to the common electrode line 4 is formed.
  • the overlapping portions in the second overlapping region 21 and the third overlapping region 22 are connected by welding.
  • the welding method is relatively firm and difficult to fall off.
  • the cross-sectional area of each cutting area is larger than the diameter of the light spot during laser cutting.
  • the cross-sectional area of each cutting area is made larger than the diameter of the light spot during laser cutting, so that the other lines will not be affected when laser cutting is performed.
  • the main line 7 of the common electrode line 4 includes a first common stub 10, a second common stub 11 and a connection block 14;
  • the first common stub 10 overlaps the second gate electrode layer 2, and the connection block 14 is a portion where the common electrode line 4 contacts the first gate electrode layer 1;
  • the second common stub 11 is connected to the connection block 14 and the first common stub 10.
  • the second common stub 11 is parallel to and oblique to a portion corresponding to the second gate electrode layer 2. line;
  • the third cutting area 63 is disposed on the second common section line 11.
  • the main line 7 of the common electrode line 4 includes a second common section line 11, a third common section line 12, and a fourth common section line 13;
  • the orthographic projection of the second common section line 11 overlaps with the active switch 5 the fourth common section line 13 is the lowermost part of the main line 7, and the third common section line 12 is connected to the second The common section line 11 and the fourth common section line 13 are provided, and the fourth cutting area 64 is disposed on the fourth common section line 13.
  • the fourth common stub 13 protrudes outward from the second gate electrode layer 2.
  • the fourth common stub line 13 is convex outward, leaving enough margin to avoid affecting the second gate electrode layer 2 when laser cutting.
  • a process sequence of the display panel 30 is disclosed. Referring to FIG. 7, the process sequence is:
  • a pixel electrode layer 26 is formed, and the pixel electrode layer 26 is electrically connected to the drain electrode layer through the layer transfer hole 25.
  • FIG. 5 a method for repairing the display panel is disclosed. As shown in FIG. 6, the method for repairing includes:
  • the cutting method is a laser cutting method.
  • the present application also discloses a display device 50.
  • the display device 50 includes the display panel 30 and a driving circuit 60 that drives the display panel 30.
  • the panel of the present application may be a TN panel (full name is Twisted Nematic, that is, a twisted nematic panel), an IPS panel (In-PaneSwitcing, plane conversion), a VA panel (Multi-domain Vertica Aignment, multi-quadrant vertical alignment technology), of course , Or other types of panels, applicable.
  • TN panel full name is Twisted Nematic, that is, a twisted nematic panel
  • IPS panel In-PaneSwitcing, plane conversion
  • VA panel Multi-domain Vertica Aignment, multi-quadrant vertical alignment technology

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  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
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  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Liquid Crystal (AREA)

Abstract

一种显示面板（30）和显示装置（50），显示面板（30）包括共通电极线（4）、主动开关（5）和讯号线（6），讯号线（6）与主动开关（5）重叠形成第一重叠区（20），共通电极线（4）的第一延长线（8）和第二延长线（9）连接讯号线（6）形成第二重叠区（21）和第三重叠区（22）。

Description

一种显示面板和显示装置
本申请要求于2018年9月30日提交中国专利局、申请号为CN201811158755.9、发明名称为“一种显示面板和显示装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及显示技术领域，更具体的说，涉及一种显示面板和显示装置。
背景技术
这里的陈述仅提供与本申请有关的背景信息，而不必然地构成现有技术。
液晶显示器具有机身薄、省电、无辐射等众多优点，得到了广泛的应用。市场上的液晶显示器大部分为背光型液晶显示器，其包括液晶面板及背光模组(Backlight Module)。液晶面板的工作原理是在两片平行的玻璃基板当中放置液晶分子，并在两片玻璃基板上施加驱动电压来控制液晶分子的旋转方向，以将背光模组的光线折射出来产生画面。
面板制作过程中，由于环境或机台设备因素，时常发生部分金属走线缺陷或者是部分金属互相短路导致子画素显示异常，如扫描线和讯号线异常短路，从而导致产品良率下降，浪费成本，申请人知晓的一种最为常见的改善方法是利用镭射切割方式，将非正常显示子画素的主动开关端点进行切割，将其与短路的线路分开，让子画素形成暗点，当暗点数量够少时，产品良率便得以提升。画素电极通常将主动开关与讯号线合并，若当主动开关于制成后发生异常修补时，一般将发生异常的主动开关断开，但讯号线的讯号不能正常传递。
技术解决方案
本申请的目的在于提供一种显示面板和显示装置，以解决主动开关断开后讯号线的讯号不能正常传递的问题。
为实现上述目的，本申请提供了一种显示面板，所述显示面板包括基板；
所述基板包括第一栅极电极层、第二栅极电极层和第三栅极电极层、共通电极线、 主动开关和讯号线；所述第一栅极电极层、第二栅极电极层和第三栅极电极层从上到下依次排列，所述共通电极线连接第一栅极电极层和第三栅极电极层，并从第二栅极电极层中经过，所述第二栅极电极层与主动开关连接；所述共通电极线包括主线、第一延长线和第二延长线，所述讯号线与主动开关重叠，重叠的部分为第一重叠区，所述第一延长线和第二延长线连接第一重叠区两端的讯号线，形成第二重叠区和第三重叠区。
可选的，所述讯号线包括第一讯号线和第二讯号线，所述第二讯号线为第一讯号线向外的延长线；所述第二讯号线和第一延长线相连，在第一讯号线外形成第二重叠区。
可选的，所述共通电极线主线包括第一共通截线、第二共通截线和连接块，所述第一共通截线与第二栅极电极层重叠，所述连接块是共通电极线与第一栅极电极层接触的部分；所述第二共通截线与连接块和第一共通截线连接，所述第二共通截线与第二栅极电极层对应的部分平行且为斜线；所述第一延长线与第一共通截线和第二共通截线的交点连接。
可选的，所述第一延长线包括外凸线，所述外凸线位于第二共通截线与主动开关之间，且突出方向是朝向主动开关。
可选的，所述第一延长线包括竖直线，所述竖直线一端与外凸线相连，另一端与第二讯号线重叠，所述外凸线与竖直线不在一条直线上，所述竖直线与第一共通截线保持在同一直线上，并不是外凸线的延长线，因此与第一讯号线之间的距离大于外凸线与第一讯号线主体的距离。
可选的，所述共通电极线主线与第二栅极电极层对应的边缘平行。
可选的，所述讯号线包括第三讯号线，所述第三讯号线为第一讯号线向外的延长线；所述第三讯号线和第二延长线相连，在第一讯号线外形成第三重叠区。
可选的，所述共通电极线主线包括第二共通截线、第三共通截线和第四共通截线，所述第二共通截线为主线最靠近主动开关的部分，所述第四共通截线为主线最下方的部分，所述第三共通截线连接第二共通截线和第四共通截线，且背向第三讯号线倾斜；所述第二延长线连接第三共通截线和第三讯号线。
可选的，所述显示面板包括第一切割区、第二切割区、第三切割区和第四切割区，所[字体统一]述第一切割区和所述第二切割区设置在所述第一重叠区两端的所述讯号线上，所述第三切割区和所述第四切割区设置在所述共通电极线上，切割后的讯号线与共通讯号线构成连通的电路。
可选的，所述第二重叠区和所述第三重叠区中的重叠部分经过熔接的形式连接。
可选的，每个切割区的横截面积都大于镭射切割时光点的直径。
可选的，所述共通电极线主线包括第一共通截线、第二共通截线和连接块；所述第一共通截线与所述第二栅极电极层重叠，所述连接块是所述共通电极线与所述第一栅极电极层接触的部分；所述第二共通截线与所述连接块和所述第一共通截线连接，所述第二共通截线与所述第二栅极电极层对应的部分平行且为斜线；所述第三切割区设置在所述第二共通截线上。
可选的，所述共通电极线主线包括第二共通截线、第三共通截线和第四共通截线；所述第二共通截线的正投影与所述主动开关重叠，所述第四共通截线为所述主线最下方的部分，所述第三共通截线连接所述第二共通截线和所述第四共通截线，所述第四切割区设置在所述第四共通截线上。
可选的，所述第四共通截线背向所述第二栅极电极层向外凸起。
本申请还公开了一种显示面板的制造方法，包括：将所述共通电极线连接所述第一栅极电极层和所述第三栅极电极层；
将所述共通电极线从所述第二栅极电极层中经过；
将所述第二栅极电极层与所述主动开关连接；
将所述讯号线与所述主动开关重叠，重叠的部分为第一重叠区；
以及将所述第一延长线和所述第二延长线连接所述第一重叠区两端的所述讯号线，形成第二重叠区和第三重叠区。
本申请还公开了一种显示装置，所述显示装置包括上述显示面板和驱动所述显示面板的驱动电路。
当子画素显示异常时，如开关电极三端点异常短路、画素电极显示异常或共电极短路时，都可以将重叠区两端的讯号线切断，利用共通电极线的第一延长线和第二延长线与讯号线的重合接触，将讯号继续传递下去，这 样讯号线的信息可以通过传递给下一排的画素电极。
附图说明
所包括的附图用来提供对本申请实施例的理解，其构成了说明书的一部分，用于例示本申请的实施方式，并与文字描述一起来阐释本申请的原理。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，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。在附图中：
图1是已知一种子画素亮点变成暗点的示意图；
图2是已知画素局部修补的示意图；
图3是已知子画素TFT增加后修补的示意图；
图4是本申请实施例所采用的主动开关阵列示意图；
图5是本申请其中一个实施例所采用主动开关阵列局部的示意图；
图6是本申请其中一个实施例中主动开关阵列修补后的示意图；
图7是本申请其中一个实施例中显示面板制作流程示意图；
图8是本申请其中一个实施例中一种显示装置的示意图。
本申请的实施方式
这里所公开的具体结构和功能细节仅仅是代表性的，并且是用于描述本申请的示例性实施例的目的。但是本申请可以通过许多替换形式来具体实现，并且不应当被解释成仅仅受限于这里所阐述的实施例。
在本申请的描述中，需要理解的是，术语“中心”、“横向”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”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该特征。在本申请的描述中，除非另有说明，“多个”的含义是两个或两个以上。另外，术语“包括”及其任何变形，意图在于覆盖不排他的包含。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本申请中的具体含义。
这里所使用的术语仅仅是为了描述具体实施例而不意图限制示例性实施例。除非上下文明确地另有所指，否则这里所使用的单数形式“一个”、“一项”还意图包括复数。还应当理解的是，这里所使用的术语“包括”和/或“包含”规定所陈述的特征、整数、步骤、操作、单元和/或组件的存在，而不排除存在或添加一个或更多其他特征、整数、步骤、操作、单元、组件和/或其组合。
下面结合附图和较佳的实施例对本申请说明。
如图1至图3所述，面板制作过程中，由于环境或机台设备因素，时常发生部分金属走线缺陷或者是部分金属互相短路导致子画素显示异常，如gate金属走线和data金属走线异常短路，从而导致产品良率下降，浪费成本，目前最为常见的改善方法是利用镭射切割方式，将非正常显示子画素的TFT端点进行切割，将其与短路的线路分开，让子画素形成暗点，当暗点数量够少时，产品良率便得以提升。
如图1和图2所示，其中，主动开关若要能进行此修补方法，则主动开关需要多设计部份走线预留给雷射切割修补用，此设计需考量镭射切割时所需光点大小和切割路径，因此会占用较多设计空间。
如图3所示，当设计空间较小或者需在有限的空间内摆放更多的主动开关数量时，可将主动开关设计为与讯号线(data line)相连，设计空间虽可节约许多，但却降低了修补率，如何在该种架构下，增加修补的可能性，为本篇专利主要目的。
本申请所使用的设计主要应用在主动开关与讯号线合并的画素，若当主动开关于制成后发生异常而需要修补时，需要将发生异常的主动开关的漏极断开。
在本申请的一个实施例中，参考图4至图6，公布了一种显示面板30，所述显示面板30包括基板40；所述基板40包括第一栅极电极层1、第二栅极电极层2和第三栅极电极层3、共通电极线4、主动开关5和讯号线6；所述第一栅极电极层1、第二栅极电极层2和第三栅极电极层3从上到下依次排列，所述共通电极线4连接第一栅极电极层1和第三栅极电极层3，并从第二栅极电极层2中经过，所述第二栅极电极层2与主动开关连接；
所述共通电极线4包括主线7、第一延长线8和第二延长线9，所述讯号线6与主动开关5重叠，重叠的部分为第一重叠区20，所述第一延长线8和第二延长线9连接第一重叠区20两端的讯号线6，形成第二重叠区21和第三重叠区22。
所述讯号线6包括第一讯号线17和第二讯号线18，所述第二讯号线18为第一讯号线17向外的延长线；所述第二讯号线18和第一延长线8相连，在第一讯号线17外形成第二重叠区21。
本方案中，所述第一延长线8与第二讯号线18重叠后并未连接在一起，避免画素电极正常时受到影响，但是当画素电极异常需要修补时，第二重叠区21上的第一延长线8和第二讯号线18就要熔接起来，如果将第一延长线8连接到第一讯号线17上，当讯号线6切割后，由于切割的路径比较小，容易使熔接的部分和切割的讯号线6部分连接起来，这样还需要第二道切割，使得修补工作变麻烦，所以在第一讯号线17上增加向外延伸的第二讯号线18，和第一延长线8在第一讯号线17外形成第二重叠区21。
在一实施例中，所述共通电极线4主线7包括第一共通截线10、第二共通截线11和连接块，所述第一共通截线10与第二栅极电极层2重叠，所述连接块是共通电极线4与第一栅极电极层1接触的部分；
所述第二共通截线11与连接块和第一共通截线10连接，所述第二共通截线11与第二栅极电极层2对应的部分平行且为斜线；所述第一延长线8与第一共通截线10和第二共通截线11的交点连接。
本方案中，当子画素显示异常需要修补时，需要将共通电极线4与画素电极之间的连接割断，需要留出一部分的共通电极线4用于切割，所以将第一延长线8与第一共通截线10和第二共通截线11的交点连接，而整个 第二共通截线11都可用于切割，切割的空间较大，可允许出现的误差较大。
在一实施例中，所述第一延长线8包括外凸线15，所述外凸线15位于第二共通截线11与主动开关5之间，且突出方向是朝向主动开关5。
本方案中，所述外凸线15位于第二共通截线11与主动开关5之间，且突出方向是朝向主动开关5，所以外凸线15与第二共通截线11之间有较大的空间，当画素显示异常需要切割第二共通截线11时，不会影响到外凸线15。
在一实施例中，所述第一延长线8包括竖直线16，所述竖直线16一端与外凸线15相连，另一端与第二讯号线18重叠，所述外凸线15与竖直线16不在一条直线上，所述竖直线16与第一共通截线10保持在同一直线上，并不是外凸线15的延长线，因此与第一讯号线17之间的距离大于外凸线15与第一讯号线17主体的距离。
本方案中，如果竖直线16与外凸线15处于同一直线上，那么竖直线16与第一讯号线17之间的距离就会比较近，当切割第一讯号线17时，竖直线16因为距离过近会受到影响。
在一实施例中，所述共通电极线4主线7与第二栅极电极层2对应的边缘平行。
本方案中，所述共通电极线4主线7与第二栅极电极层2对应的边缘平行后，共通电极线4与第二栅极电极层2对应边缘的距离都保持一致，这样既不会因距离变大浪费空间，也不会因距离过小而导致共通电极线4主线7与第二栅极电极层2工作状态时相互影响，造成短路等不良后果。
在一实施例中，所述讯号线6包括第三讯号线19，所述第三讯号线19为第一讯号线17向外的延长线；所述第三讯号线19和第二延长线9相连，在第一讯号线17外形成第三重叠区22。
本方案中，所述第二重叠区21和第三重叠区22都在第一讯号线17外侧，将第二重叠区21和第三重叠区22熔接后，整个修补工作就不需要再切割，修补过程简单。
在一实施例中，所述共通电极线4主线7包括第二共通截线11、第三共通截线12和第四共通截线13，所述第二共通截线11为主线7最靠近主 动开关5的部分，所述第四共通截线13为主线7最下方的部分，所述第三共通截线12连接第二共通截线11和第四共通截线13，且背向第三讯号线19倾斜；所述第二延长线9连接第三共通截线12和第三讯号线19。
本方案中，所述第二延长线9是从背向第三讯号线19倾斜的第三共通截线12延伸而出，与第一讯号线17之间有较大的空间，当第一讯号线17切割时不会影响到第三共通截线12；按理说第二延长线9从第二共通截线11下方延伸而下是最方便的，但是这样会使第二延长线9与第一讯号线17之间的间隔变小，造成修补不方便。
在一实施例中，所述显示面板30包括第一切割区61、第二切割区62、第三切割区63和第四切割区64，所述第一切割区61和所述第二切割区62设置在所述第一重叠区20两端的所述讯号线6上，所述第三切割区63和所述第四切割区64设置在所述共通电极线4上，切割后的讯号线6与共通电极线4构成连通的电路。
在一实施例中，所述第二重叠区21和所述第三重叠区22中的重叠部分经过熔接的形式连接。
本方案中，采用熔接的方式比较牢固，不易脱落。
在一实施例中，每个切割区的横截面积都大于镭射切割时光点的直径。
本方案中，使每个切割区的横截面积都大于镭射切割时光点的直径，这样在进行镭射切割时，不会影响到其它线路。
在一实施例中，所述共通电极线4的主线7包括第一共通截线10、第二共通截线11和连接块14；
所述第一共通截线10与所述第二栅极电极层2重叠，所述连接块14是所述共通电极线4与所述第一栅极电极层1接触的部分；
所述第二共通截线11与所述连接块14和所述第一共通截线10连接，所述第二共通截线11与所述第二栅极电极层2对应的部分平行且为斜线；
所述第三切割区63设置在所述第二共通截线11上。
在一实施例中，所述共通电极线4的主线7包括第二共通截线11、第三共通截线12和第四共通截线13；
所述第二共通截线11的正投影与所述主动开关5重叠，所述第四共通截线13为所述主线7最下方的部分，所述第三共通截线12连接所述第二共通截线11和所述第四共通截线13，所述第四切割区64设置在所述第四共通截线13上。
在一实施例中，所述第四共通截线13背向所述第二栅极电极层2向外凸起。
本方案中，将第四共通截线13往外凸，留出足够的余量避免镭射切割时影响到第二栅极电极层2.
在一实施例中，公开了上述显示面板30的制程顺序，参考图7，所述制程顺序为：
S71：在基板40上形成栅极电极层(对应第一-第三栅极电极层)；
S72：在栅极电极层上形成半导层23；
S73：在半导层23上形成薄膜晶体管的源电极和漏电极层24；
S74：在漏电极层上形成转层孔25；
S75：形成画素电极层26，通过转层孔25与漏极电极层电连接。
本实施例可选的，参考图5所示，公开了一种上述显示面板的修补方法，如图6所示，所述修补方法包括：
将第二重叠区21两端讯号线中第一切割区61和第二切割区62处切割；
将主线7中第三切割区63和第四切割区64处切割；
使切割后剩下的讯号线6和共通电极线4构成一个相连的线路；
将相连的延长线和讯号线6进行熔接；
所述切割方式为镭射切割方式。
本申请还公开了一种显示装置50，如图8所示，显示装置50包括上述显示面板30和驱动上述显示面板30的驱动电路60。
本申请的面板可以是TN面板(全称为Twisted Nematic，即扭曲向列型面板)、IPS面板(In-PaneSwitcing，平面转换)、VA面板(Multi-domain Vertica Aignment，多象限垂直配向技术)，当然，也可以是其他类型的面板，适用即可。
以上内容是结合具体的实施方式对本申请所作详细说明，不能认定本申请的具体实施只局限于这些说明。对于本申请所述技术领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干简单推演或替换，都应当视为属于本申请。

Claims (17)

  1. 一种显示面板，所述显示面板包括基板，所述基板包括：
    第一栅极电极层、第二栅极电极层和第三栅极电极层，所述第一栅极电极层、所述第二栅极电极层和所述第三栅极电极层从上到下依次排列；
    共通电极线，所述共通电极线连接所述第一栅极电极层和所述第三栅极电极层，并从所述第二栅极电极层中经过；
    主动开关，与所述第二栅极电极层连接；以及
    讯号线，与所述主动开关重叠，重叠的部分为第一重叠区；
    所述共通电极线包括主线、第一延长线和第二延长线，所述第一延长线和所述第二延长线连接所述第一重叠区两端的所述讯号线，形成第二重叠区和第三重叠区。
  2. 如权利要求1所述的一种显示面板，其中，所述讯号线包括第一讯号线和第二讯号线，所述第二讯号线为所述第一讯号线向外的延长线，所述第二讯号线和所述第一延长线相连，在所述第一讯号线外形成第二重叠区。
  3. 如权利要求2所述的一种显示面板，其中，所述共通电极线主线包括第一共通截线、第二共通截线和连接块；
    所述第一共通截线与所述第二栅极电极层重叠，所述连接块是所述共通电极线与所述第一栅极电极层接触的部分；
    所述第二共通截线与所述连接块和所述第一共通截线连接，所述第二共通截线与所述第二栅极电极层对应的部分平行且为斜线；
    所述第一延长线与所述第一共通截线和所述第二共通截线的交点连接。
  4. 如权利要求3所述的一种显示面板，其中，所述第一延长线包括外凸线，所述外凸线位于所述第二共通截线与所述主动开关之间，向所述主动开关方向突出。
  5. 如权利要求4所述的一种显示面板，其中，所述第一延长线包括竖直线，所述竖直线一端与所述外凸线相连，另一端与所述第二讯号线重叠；
    所述外凸线与所述竖直线不在一条直线上，所述竖直线与第一共通截线保持在同一直线上，与所述第一讯号线之间的距离大于所述外凸线与所述第一讯号线主体的距离。
  6. 如权利要求1所述的一种显示面板，其中，所述共通电极线主线与所述第二栅极电极层对应的边缘平行。
  7. 如权利要求2所述的一种显示面板，其中，所述讯号线包括第三讯号线，所述第三讯号线为所述第一讯号线向外的延长线；
    所述第三讯号线和所述第二延长线相连，在所述第一讯号线外形成第三重叠区。
  8. 如权利要求7所述的一种显示面板，其中，所述共通电极线主线包括第二共通截线、第三共通截线和第四共通截线；
    所述第二共通截线为所述主线最靠近所述主动开关的部分，所述第四共通截线为所述主线最下方的部分，所述第三共通截线连接所述第二共通截线和所述第四共通截线，且背向所述第三讯号线倾斜；
    所述第二延长线连接所述第三共通截线和所述第三讯号线。
  9. 如权利要求1所述的一种显示面板，其中，所述显示面板包括第一切割区、第二切割区、第三切割区和第四切割区，所述第一切割区和所述第二切割区设置在所述第一重叠区两端的所述讯号线上，所述第三切割区和所述第四切割区设置在所述共通电极线上，切割后的讯号线与共通讯号线构成连通的电路。
  10. 如权利要求9所述的一种显示面板，其中，所述第二重叠区和所述第三重叠区中的重叠部分经过熔接的形式连接。
  11. 如权利要求9所述的一种显示面板，其中，每个切割区的横截面积都大于镭射切割时光点的直径。
  12. 如权利要求9所述的一种显示面板，其中，所述共通电极线主线包括第一共通截线、第二共通截线和连接块；
    所述第一共通截线与所述第二栅极电极层重叠，所述连接块是所述共通电极线与所述第一栅极电极层接触的部分；
    所述第二共通截线与所述连接块和所述第一共通截线连接，所述第二共通截线与所述第二栅极电极层对应的部分平行且为斜线；
    所述第三切割区设置在所述第二共通截线上。
  13. 如权利要求9所述的一种显示面板，其中，所述共通电极线主线包括第 二共通截线、第三共通截线和第四共通截线；
    所述第二共通截线的正投影与所述主动开关重叠，所述第四共通截线为所述主线最下方的部分，所述第三共通截线连接所述第二共通截线和所述第四共通截线，所述第四切割区设置在所述第四共通截线上。
  14. 如权利要求13所述的一种显示面板，其中，所述第四共通截线背向所述第二栅极电极层向外凸起。
  15. 一种显示面板，包括基板，所述基板包括：
    第一栅极电极层、第二栅极电极层和第三栅极电极层，所述第一栅极电极层、所述第二栅极电极层和所述第三栅极电极层从上到下依次排列；
    共通电极线，所述共通电极线连接所述第一栅极电极层和所述第三栅极电极层，并从所述第二栅极电极层中经过；
    主动开关，与所述第二栅极电极层连接；以及
    讯号线，与所述主动开关重叠，重叠的部分为第一重叠区；
    所述共通电极线包括主线、第一延长线和第二延长线，所述第一延长线和所述第二延长线连接所述第一重叠区两端的所述讯号线，形成第二重叠区和第三重叠区；
    所述讯号线包括第一讯号线和第二讯号线，所述第二讯号线为所述第一讯号线向外的延长线，所述第二讯号线和所述第一延长线相连，在所述第一讯号线外形成第二重叠区；
    所述共通电极线主线包括第一共通截线、第二共通截线和连接块；
    所述第一共通截线与所述第二栅极电极层重叠，所述连接块是所述共通电极线与所述第一栅极电极层接触的部分；
    所述第二共通截线与所述连接块和所述第一共通截线连接，所述第二共通截线与所述第二栅极电极层对应的部分平行且为斜线；
    所述第一延长线与所述第一共通截线和所述第二共通截线的交点连接；
    所述第一延长线包括外凸线，所述外凸线位于所述第二共通截线与所述主动开关之间，向所述主动开关方向突出；
    所述第一延长线包括竖直线，所述竖直线一端与所述外凸线相连，另一端与所述第二讯号线重叠；
    所述外凸线与所述竖直线不在一条直线上，所述竖直线与所述第一共通截线保持在同一直线上，与所述第一讯号线之间的距离大于所述外凸线与所述第一讯号线主体的距离。
  16. 一种显示装置，包括显示面板和驱动所述显示面板的驱动电路；
    所述显示面板包括基板，所述基板包括：
    第一栅极电极层、第二栅极电极层和第三栅极电极层，所述第一栅极电极层、所述第二栅极电极层和所述第三栅极电极层从上到下依次排列；
    共通电极线，所述共通电极线连接所述第一栅极电极层和所述第三栅极电极层，并从所述第二栅极电极层中经过；
    主动开关，与所述第二栅极电极层连接；以及
    讯号线，与所述主动开关重叠，重叠的部分为第一重叠区；
    所述共通电极线包括主线、第一延长线和第二延长线，所述第一延长线和所述第二延长线连接所述第一重叠区两端的所述讯号线，形成第二重叠区和第三重叠区。
  17. 如权利要求16所述的一种显示装置，其中，所述共通电极线主线与所述第二栅极电极层对应的边缘平行。
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