WO2020062596A1 - 显示面板和显示装置 - Google Patents

显示面板和显示装置 Download PDF

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Publication number
WO2020062596A1
WO2020062596A1 PCT/CN2018/120592 CN2018120592W WO2020062596A1 WO 2020062596 A1 WO2020062596 A1 WO 2020062596A1 CN 2018120592 W CN2018120592 W CN 2018120592W WO 2020062596 A1 WO2020062596 A1 WO 2020062596A1
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WO
WIPO (PCT)
Prior art keywords
area
line
metal
metal line
fan
Prior art date
Application number
PCT/CN2018/120592
Other languages
English (en)
French (fr)
Inventor
吴川
Original Assignee
惠科股份有限公司
重庆惠科金渝光电科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 惠科股份有限公司, 重庆惠科金渝光电科技有限公司 filed Critical 惠科股份有限公司
Priority to US17/042,901 priority Critical patent/US11385509B2/en
Publication of WO2020062596A1 publication Critical patent/WO2020062596A1/zh

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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
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1345—Conductors connecting electrodes to cell terminals
    • G02F1/13452—Conductors connecting driver circuitry and terminals of panels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • 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
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • 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
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • 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
    • G02F1/1345—Conductors connecting electrodes to cell terminals
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3648—Control of matrices with row and column drivers using an active matrix
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/42—Arrangements for providing conduction through an insulating substrate
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0421—Structural details of the set of electrodes
    • G09G2300/0426—Layout of electrodes and connections
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0202—Addressing of scan or signal lines
    • G09G2310/0218—Addressing of scan or signal lines with collection of electrodes in groups for n-dimensional addressing
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0202—Addressing of scan or signal lines
    • G09G2310/0221—Addressing of scan or signal lines with use of split matrices

Definitions

  • the present application relates to the field of display technology, and in particular, to a display panel and a display device.
  • liquid crystal displays have many advantages such as thin body, power saving, no radiation, etc., and have 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 liquid crystal panel includes a color filter substrate (Color Filter Substrate, CF substrate, also known as a color filter substrate) and a thin film transistor array substrate (Thin Film Transistor Substrate, TFT Substrate).
  • CF substrate Color Filter Substrate
  • TFT Substrate Thin Film Transistor Substrate
  • the patterned thin film transistor array substrate and color filter substrate are usually coated with an alignment layer (PI), which creates an anchoring force on the liquid crystal and makes the liquid crystal fixed.
  • the pre-tilt angle is then liquid when the alignment layer (PI) is applied to the substrate, and the alignment film can be formed after drying.
  • the alignment liquid is a liquid, when it is dripped on the substrate, it will have a certain fluidity.
  • the flow of the alignment liquid has a greater relationship with "topography”. After the alignment liquid is coated, it is easy to flow along the "grooves" formed by the lines in these fan-out areas to the frame rubber, and overlapping with the frame rubber affects the curing of the frame rubber, resulting in quality problems.
  • the object of the present application is to provide a display panel and a display device that solve the grooves on the surface of the fan-out area.
  • the present application provides a display panel.
  • the display panel includes a display area including data lines and scanning lines, and the data lines and the scanning lines are vertically distributed; a non-display area surrounding the display.
  • the area setting includes a plurality of first metal lines, the first metal lines are connected to the data line or the scan line, and the plurality of first metal lines are located on the same layer; a driving circuit passes through the first metal Line is connected to the data line or the scan line;
  • the non-display area includes a fan-out area, the driving circuit includes a plurality of sub-driving circuits, and the fan-out area is all the places connected to each of the sub-driving circuits.
  • the present application also discloses a display panel.
  • the display panel is divided into a display area and a non-display area.
  • the display panel includes a driving circuit including a plurality of sub-driving circuits.
  • the non-display area includes a plurality of first metal lines.
  • One end of a metal line is connected to a data line or a scan line in a display area, and the other end is connected to a sub-drive circuit; and a plurality of the first metal lines are located on the same layer;
  • the non-display area includes a plurality of fan-out areas, and the The fan-out area is an area composed of all the first metal lines connected to each of the sub-driving circuits;
  • the fan-out area includes a plurality of second metal lines, a conductive layer, a first transfer via, and a second transfer line.
  • the second insulating layer is disposed on the surface of the second metal line, the first transfer via hole exposes the first metal line, and the second transfer via hole exposes the second metal Line, the conductive layer connects the first metal line exposed by the first via and the second metal line exposed by the second via.
  • the present application also discloses a display device including the display display panel described above.
  • the present application uses a second metal line to fill the gap between the tracks in the fan-out area, so that the entire fan-out area forms a relatively flat terrain instead of a "ditch" terrain. Can prevent the alignment liquid from flowing along the trench; at the same time, the first metal line and the second metal line are connected in parallel to reduce the impedance of the wiring in the fan-out area.
  • FIG. 1 is a schematic diagram of a display panel
  • FIG. 2 is a schematic diagram of routing in a fan-out area
  • FIG. 3 is a schematic diagram of a cross-section of a fan-out area
  • FIG. 4 is a schematic diagram of routing in a fan-out area according to an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a cross-section of a fan-out area according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of routing in another fan-out area according to an embodiment of the present application.
  • FIG. 7 is a schematic diagram of part m of another routing in a fan-out area according to an embodiment of the present application.
  • FIG. 8 is a schematic diagram of another part n of the routing in the fan-out area according to the embodiment of the present application.
  • FIG. 9 is a schematic diagram of a cross section BB 'and CC' of an embodiment of the present application.
  • FIG. 10 is a schematic diagram of a DD 'section of an embodiment of the present application.
  • FIG. 11 is a schematic diagram of an EE ′ section of an embodiment of the present application.
  • FIG. 12 is a schematic diagram of a cross-section of another fan-out area according to an embodiment of the present application.
  • the alignment layer is liquid when it is applied to the substrate, and an alignment film can be formed after drying. Because the alignment liquid is a liquid, it will have a certain fluidity when dripped onto the substrate. On the array substrate side, the flow of the alignment liquid has a greater relationship with the "topography". As shown in Figure 2, the general fan-out area 20 The wiring is dense in the terminal area near the driving circuit 14 and wider in the display area 12.
  • the fan-out area 20 generally uses a bent winding line in the middle, and the edges are straight.
  • the design of the traces ensures that the lengths are similar and the difference in resistance is the smallest).
  • the edge traces are parallel.
  • a regular "trench” will be formed, as shown in the figure.
  • Fig. 3 after the alignment liquid is coated, it is easy to flow along these "grooves" to the sealant, and overlapping with the sealant affects the curing of the sealant, resulting in quality problems.
  • an embodiment of the present application discloses a display panel 11.
  • the display panel 11 includes a display area 12 including data lines 121 and scan lines 122, and the data lines 121 and the scan lines 122 are vertically distributed;
  • the display area 13 is arranged around the display area 12 and includes a plurality of first metal lines 24.
  • the first metal lines 24 are connected to the data line 121 or the scanning line 122.
  • the plurality of first metal lines 24 are located on the same layer.
  • the first metal line 24 is connected to the data line 121 or the scan line 122;
  • the non-display area 13 includes a fan-out area 20,
  • the driving circuit 14 includes a plurality of sub-driving circuits 15, and the fan-out area 20 is all the first The area formed by the metal lines 24.
  • the fan-out area 20 is connected to the display area 12 and the driving circuit 14.
  • the fan-out area 20 includes a plurality of second metal lines 25. Each second metal line 25 is located between two adjacent first metal lines 24. The surface of
  • the second metal line 25 is used to fill the gap between the traces in the fan-out area 20, so that the entire fan-out area 20 area forms a relatively flat terrain instead of a "ditch" terrain, which can prevent the alignment liquid flow. Flowing down the ditch.
  • each second metal line 25 is connected to an adjacent first metal line 24.
  • the first metal wire 24 and the second metal wire 25 form a parallel circuit. It is assumed that the single fan-out wiring resistances based on the first metal wire 24 and the second metal wire 25 are R1 and R2, respectively.
  • the fanout trace resistance is R1 ⁇ R2 / (R1 + R2). Since the value of R1 will always be greater than the value of R1 ⁇ R2 / (R1 + R2), this solution also has the effect of reducing the fanout trace resistance.
  • the fan-out area 20 includes an overlapping area 28, and the overlapping area 28 is an area formed by stacking the two ends of the second metal line 25 with the first metal line 24.
  • the overlapping area 28 includes a via 281 and a conductive layer. 282; the conductive layer 282 is connected to the first metal line 24 and the second metal line 25 through the through via 281, respectively.
  • the two ends of the first metal wire 24 and the second metal wire 25 are stacked to easily process the through via 281, and the hole is directly opened downward from the surface of the fan-out area 20;
  • the cross-sectional area of the wire is relatively small, and the processing accuracy is relatively high.
  • the method of using the conductive layer 282 to connect the first metal wire 24 and the second metal wire 25 is relatively simple. There is no need to connect the first metal wire 24 and the second metal.
  • the wire 25 is welded or wound, and a conductive layer 282 can be directly laid on the surface of the overlap region 28 to meet the requirements.
  • the transfer via 281 includes a first transfer via 2811 and a second transfer via 2812.
  • the first transfer via 2811 exposes the first metal wire 24 and the second transfer via 2812.
  • the second metal line 25 is exposed, and the conductive layer 282 is connected to the first metal line 24 and the second metal line 25 through the first transfer via 2811 and the second transfer via 2812, respectively.
  • the area of the second metal line 25 that makes the conductive layer 282 contact is larger, and the connection effect between the first metal line 24 and the second metal line 25 is better.
  • one overlapping region 28 includes a plurality of first vias 2811 and a plurality of second vias 2812.
  • the exposed area of the first metal line 24 and the second metal line 25 in the overlap region 28 is larger, and the conductive layer 282 contacts The area of the first metal line 24 and the second metal line 25 is larger, so that the contact area of the first metal line 24 and the second metal line 25 is larger, and the conduction effect is better.
  • the fan-out area 20 includes a first insulating layer 26, a second insulating layer 27, and a substrate 29.
  • the first metal line 24 is disposed on a surface of the substrate 29, and the first insulating layer 26 is disposed on the first metal line 24.
  • the second metal line 25 is disposed on the surface of the first insulating layer 26, and the second insulating layer 27 is disposed on the surface of the second metal line 25.
  • providing a first insulating layer 26 between the first metal line 24 and the second metal line 25 can prevent the first metal line 24 and the second metal line 25 from being short-circuited.
  • the two insulating layers 27 prevent the alignment liquid or liquid crystal from corroding the second metal wire 25.
  • the fan-out area 20 includes a first straight area 21, a second straight area 23, and a slanted area 22, and the slanted area 22 is disposed between the first straight area 21 and the second straight area 23.
  • the first straight line area 21 is adjacent to the display area 12, and the second straight line area 23 is adjacent to the driving circuit 14.
  • the connection points of the second metal line 25 and the first metal line 24 are located in the first straight line area 21 and the second straight line area, respectively.
  • Straight area 23 is
  • the first straight area 21 and the second straight area 23 are located at both ends of the fan-out area 20, and the two ends of the second metal wire 25 are connected to the first straight area 21 and the second straight area 23, then It is required that the second metal line 25 fills up the groove formed by the first metal line 24 in the oblique line area 22, so that the surface of the fan-out area 20 has a larger flat area, and the effect of blocking the alignment liquid is better.
  • an included angle between the portion of the second metal wire 25 in the overlapping region 28 and the portion not in the overlapping region 28 is an obtuse angle.
  • the material of the conductive layer 282 is indium tin oxide.
  • indium tin oxide is also the material of the transparent electrode layer in the display panel 11.
  • the material of the conductive layer 282 and the transparent electrode layer are made the same, so that the conductive layer 282 can be processed directly when the transparent electrode layer is processed, saving An additional process saves production time and costs.
  • the overlapping region 28 includes a third insulating layer 283, the third insulating layer 283 is located on the surface of the first metal line 24, and the second metal line 25 is located on the surface of the third insulating layer 283.
  • the first via 281 exposes the first metal line 24, and the conductive layer 282 is connected to the first metal line 24 and the second metal line 25 through the via 281, respectively.
  • the first metal line 24 or the second metal line 25 is all exposed under the conductive layer 282, and the third insulating layer 283 is located between the first metal line 24 and the second metal line 25 and is not insulated from the third The layer 283 is in contact, which makes the first metal line 24 and the second metal line 25 reach the maximum contact area, and the conduction effect is the best.
  • a display panel 11 is disclosed.
  • the display panel 11 is divided into a display area 12 and a non-display area 13.
  • the display panel 11 includes a plurality of sub-driving circuits 15.
  • non-display area 13 includes a plurality of first metal lines 24, one end of which is connected to data line 121 or scanning line 122 in display area 12, and the other end of which is connected to sub-drive circuit 15;
  • a metal line 24 is located on the same layer;
  • the non-display area 13 includes a plurality of fan-out areas 20, and the fan-out area 20 is an area composed of all the first metal lines 24 connected to each sub-driving circuit 15;
  • the fan-out area 20 includes a plurality of first Two metal wires 25, a conductive layer 282, a first transfer via 2811, a second transfer via 2812, a first insulating layer 26, and a second insulating layer 27;
  • the first insulating layer 26 is disposed on the first metal wire 24 Surface;
  • second metal lines 27 are disposed on the first insulating layer 26, each second metal line 25 is located between two adjacent first metal lines 24, and two ends of each second metal line 25 are disposed at Directly adjacent to the first metal line 24, and the surface of the second metal
  • the second metal line 25 to fill the gap between the traces in the fan-out area 20, so that the entire fan-out area 20 area forms a relatively flat terrain instead of a "ditch" terrain, which can prevent the alignment liquid from flowing along the trench;
  • the first metal line 24 and the second metal line 25 are connected in parallel to reduce the impedance of the traces in the fan-out area 20.
  • a display device 10 As another embodiment of the present application, as shown in FIGS. 4 to 12, a display device 10 is disclosed.
  • the display device 10 includes the display panel 11 described above.
  • 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-Plane Switching, plane conversion), a VA panel (Multi-domain Vertical Alignment, multi-quadrant vertical alignment technology), Of course, other types of panels can also be used, as long as they are applicable.
  • TN panel full name is Twisted Nematic, that is, a twisted nematic panel
  • IPS panel In-Plane Switching, plane conversion
  • VA panel Multi-domain Vertical Alignment, multi-quadrant vertical alignment technology

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

Abstract

一种显示面板（11）和显示装置（10）。显示面板（11）中的非显示区（13）包括多个扇出区（20），显示面板（11）中的驱动电路（14）包括多个子驱动电路（15），扇出区（20）为每个子驱动电路（15）连接的所有第一金属线（24）构成的区域，扇出区（20）连接显示区（12）和驱动电路（14）；扇出区（20）包括多条第二金属线（25），每一条第二金属线（25）位于两个相邻的第一金属线（24）之间；扇出区（20）的表面平整。

Description

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CN201811158778.X，申请名称为“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，尤其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。
随着科技的发展和进步，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)。液晶面板包括彩膜基板(Color Filter Substrate，CF Substrate，也称彩色滤光片基板)和薄膜晶体管阵列基板(Thin Film Transistor Substrate，TFT Substrate)，上述基板的相对内侧存在透明电极，两片基板之间夹一层液晶分子(Liquid Crystal，LC)。
TFT-LCD在灌入液晶之前，通常还在做完图案(Pattern)的薄膜晶体管阵列基板和彩膜基板先涂布一层配向层(PI)，对液晶产生锚定力，使液晶具有固定的预倾角，然后配向层(PI)涂布到基板时为液体，经过烘干才能形成配向膜。由于配向液为液体，其滴注到基板上时，会有一定的流动性，在薄膜晶体管阵列基板侧，配向液的流动跟“地形”有较大关系。配向液在涂布完后，容易顺着这些扇出区走线形成的“沟槽”流到至框胶处，与框胶重叠影响框胶固化，从而导致品质问题。
技术解决方案
本申请的目的在于提供一种解决扇出区的表面存在沟槽的显示面板和显示装置。
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：显示区，包括数据线和扫描线，所述数据线和所述扫描线垂直分布；非显示区，环绕所述显示区设置，包括多条第一金属线，所述第一金属线与所述数据线或所述扫描线连接，多条所述第一金属线位于同一层；驱动电路，通过所述第一金属线跟所述数据线或所述扫描线连接；所述非显示区包括扇出区，所述驱动电路包括多个子驱动电路，所述扇出区为每个所述子驱动电路连接的所有所述第一金属线构成的区域，所述扇出区连接所述显示区和所述驱动电路；所述扇出区包括多条第二金属线，每一条所述第二金属线位于两个相邻的第一金属线之间；所述扇出区的表面平整。
本申请还公开了一种显示面板，所述显示面板划分显示区和非显示区，显示面板包括含有多个子驱动电路的驱动电路；所述非显示区包括多条第一金属线，所述第一金属线的一端连接显示区中的数据线或扫描线，另一端连接子驱动电路；且多条所述第一金属线位于同一层；所述非显示区包括多个扇出区，所述扇出区为每个所述子驱动电路连接的所有所述第一金属线构成的区域；所述扇出区包括多条第二金属线、导电层、第一转接过孔、第二转接过孔、第一绝缘层和第二绝缘层；所述第一绝缘层设置在所述第一金属线的表面；所述第二金属线设置在所述第一绝缘层上，每一条所述第二金属线位于两个相邻的所述第一金属线之间，每一条所述第二金属线的两端都设置在相邻所述第一金属线的正上方，且所述第二金属线的表面与所述第一绝缘层的表面平齐；所述第二绝缘层设置在所述第二金属线的表面，所述第一转接过孔暴露出所述第一金属线，所述第二转接过孔暴露出所述第二金属线，所述导电层连接所述第一转接过孔暴露出的所述第一金属线和所述第二转接过孔暴露出的所述第二金属线。
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显示面板。
相对于有沟槽扇出区的显示面板，本申请使用第二金属线填补扇出区走线之间的空隙，这样使得整个扇出区域形成较为平坦的地形， 而不是有“沟渠”的地形，可以防止配向液顺着沟渠流动；同时第一金属线和第二金属线并联，减小扇出区走线的阻抗。
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，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是一种显示面板的示意图；
图2是一种扇出区的走线示意图；
图3是一种扇出区剖面的示意图；
图4是本申请实施例一种扇出区走线的示意图；
图5是本申请实施例一种扇出区剖面的示意图；
图6是本申请实施例另一种扇出区走线的示意图；
图7是本申请实施例另一种扇出区走线m部分的示意图；
图8是本申请实施例另一种扇出区走线n部分的示意图；
图9是本申请实施例BB’和CC’剖面的示意图；
图10是本申请实施例DD’剖面的示意图；
图11是本申请实施例EE’剖面的示意图；
图12是本申请实施例另一种扇出区走线剖面的示意图。
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。
下面结合附图和实施例对本申请作说明。
如图1至图3所示，TFT-LCD在灌入液晶之前，通常需要在做完图案(Pattern)的阵列基板和彩色滤光基板先涂布一层配向层，对液晶产生锚定力，使液晶具有固定的预倾角。然后配向层涂布到基板时为液体，经过烘干才能形成配向膜。由于配向液为液体，其滴注到基板上时，会有一定的流动性，在阵列基板侧，配向液的流动跟“地形”有较大关系，如图2所示，一般扇出区20走线为靠近驱动电路14的端子区域线密集，而靠近显示区12较宽，两者需要一一对应连接，且电阻差异最小，故一般扇出区20采用中间有弯折绕线，边缘直线走线的设计(这样保证长度相近，电阻值差异最小)，但是，在配向液涂布时，由于边缘走线有平行，在阵列基板制程完成后，会形成规整的“沟槽”， 如图3所示，这样配向液在涂布完后，容易顺着这些“沟槽”流到至框胶处，与框胶重叠影响框胶固化，从而导致品质问题。
如图4至图12所示，本申请实施例公布了一种显示面板11，显示面板11包括：显示区12，包括数据线121和扫描线122，数据线121和扫描线122垂直分布；非显示区13，环绕显示区12设置，包括多条第一金属线24，第一金属线24与数据线121或扫描线122连接，多条第一金属线24位于同一层；驱动电路14，通过第一金属线24跟数据线121或扫描线122连接；非显示区13包括扇出区20，驱动电路14包括多个子驱动电路15，扇出区20为每个子驱动电路15连接的所有第一金属线24构成的区域，扇出区20连接显示区12和驱动电路14；扇出区20包括多条第二金属线25，每一条第二金属线25位于两相邻第一金属线24之间；扇出区20的表面平整。
本方案中，使用第二金属线25填补扇出区20走线之间的空隙，这样使得整个扇出区20域形成较为平坦的地形，而不是有“沟渠”的地形，可以防止配向液顺着沟渠流动。
在一实施例中，每条第二金属线25两端都与相邻的一条第一金属线24连接。
本方案中，第一金属线24与第二金属线25形成并联电路，假设基于第一金属线24与第二金属线25的单条扇出走线电阻分别为R1和R2，使用本申请后的单条扇出走线电阻为R1×R2/(R1+R2)，由于R1的值始终会大于R1×R2/(R1+R2)的值，故该方案还有降低扇出走线阻值的作用。
在一实施例中，扇出区20包括重叠区28，重叠区28为第二金属线25的两端与第一金属线24堆叠形成的区域；重叠区28包括转接过孔281和导电层282；导电层282透过转接过孔281，分别与第一金属线24和第二金属线25连接。
本方案中，将第一金属线24和第二金属线25的两端堆叠起来容易加工转接过孔281，直接从扇出区20的表面朝下开孔就行；另外扇出区20中走线的横截面积比较小，加工精度要求比较高，采用导电 层282连接第一金属线24和第二金属线25的方式相对来说比较简单，不需要将第一金属线24和第二金属线25焊接或缠绕，直接在重叠区28的表面铺设一层导电层282就能达到要求。
在一实施例中，转接过孔281包括第一转接过孔2811和第二转接过孔2812，第一转接过孔2811裸露出第一金属线24，第二转接过孔2812裸露第二金属线25，导电层282透过第一转接过孔2811和第二转接过孔2812，分别与第一金属线24和第二金属线25连接。
本方案中，相较于导电层282通过一个转接过孔281连通第一金属线24和第二金属线25，这种方式额外增加一种转接过孔281，
使导电层282接触的第二金属线25面积更大，第一金属线24与第二金属线25之间的连接效果更好。
在一实施例中，一个重叠区28中含有多个第一转接过孔2811和多个第二转接过孔2812。
本方案中，通过增加第一转接过孔2811和第二转接过孔2822的数量，使得重叠区28中第一金属线24和第二金属线25裸露的面积更大，导电层282接触的第一金属线24和第二金属线25的面积更多，进而使第一金属线24和第二金属线25的接触面积更大，传导效果更好。
在一实施例中，扇出区20包括第一绝缘层26、第二绝缘层27和基底29，第一金属线24设置于基底29的表面，第一绝缘层26设置于第一金属线24的表面，第二金属线25设置于第一绝缘层26的表面，第二绝缘层27设置于第二金属线25的表面。
本方案中，在第一金属线24和第二金属线25之间设置第一绝缘层26可以防止第一金属线24和第二金属线25发生短路，在第二绝缘层27的表面设置第二绝缘层27防止配向液或液晶腐蚀第二金属线25。
在一实施例中，扇出区20包括第一直线区21、第二直线区23和斜线区22，斜线区22设置于第一直线区21和第二直线区23之间，第一直线区21与显示区12相邻，第二直线区23与驱动电路14相邻；第二金属线25与第一金属线24的连接处分别位于第一直线区21和第二直 线区23。
本方案中，第一直线区21和第二直线区23位于扇出区20两端位置，将第二金属线25的两端连接到第一直线区21和第二直线区23，那么就要求第二金属线25填满斜线区22第一金属线24形成的沟槽，这样扇出区20的表面平坦的面积更大，对配向液阻拦的效果更好。
在一实施例中，第二金属线25在重叠区28的部分与未在重叠区28部分的夹角为钝角。
本方案中，以免第二金属线25折叠的幅度过大，使第二金属线25的使用寿命减短。
在一实施例中，导电层282的材料为氧化铟锡。
本方案中，氧化铟锡也为显示面板11中透明电极层的材料，将导电层282与透明电极层的材料设为一致，这样在加工透明电极层时可直接将导电层282加工完成，节省了一道额外工序，节约生产时间和成本。
如图12所示，在一实施例中，重叠区28包括第三绝缘层283，第三绝缘层283位于第一金属线24的表面，第二金属线25位于第三绝缘层283的表面，转接过孔281裸露第一金属线24，导电层282透过转接过孔281分别与第一金属线24和第二金属线25连接。
本方案中，导电层282下方全部都是裸露的第一金属线24或第二金属线25，而第三绝缘层283位于第一金属线24与第二金属线25之间不与第三绝缘层283接触，这就使得第一金属线24和第二金属线25达到最大的接触面积，传导效果最好。
作为本申请的另一实施例，如图4至图11所示，公开了一种显示面板11，显示面板11划分显示区12和非显示区13，显示面板11包括含有多个子驱动电路15的驱动电路14；非显示区13包括多条第一金属线24，第一金属线24的一端连接显示区12中的数据线121或扫描线122，另一端连接子驱动电路15；且多条第一金属线24位于同一层；非显示区13包括多个扇出区20，扇出区20为每个子驱动电路15连接的所有第一金属线24构成的区域；扇出区20包括多条第二金属线25、 导电层282、第一转接过孔2811、第二转接过孔2812、第一绝缘层26和第二绝缘层27；第一绝缘层26设置在第一金属线24的表面；第二金属线27设置在第一绝缘层26上，每一条第二金属线25位于两个相邻的第一金属线24之间，每一条第二金属线25的两端都设置在相邻第一金属线24的正上方，且第二金属线25的表面与第一绝缘层26的表面平齐；第二绝缘层27设置在第二金属线25的表面，第一转接过孔2811暴露出第一金属线24，第二转接过孔2812暴露出第二金属线25，导电层282连接第一转接过孔2811暴露出的第一金属线24和第二转接过孔2812暴露出的第二金属线25。
使用第二金属线25填补扇出区20走线之间的空隙，这样使得整个扇出区20域形成较为平坦的地形，而不是有“沟渠”的地形，可以防止配向液顺着沟渠流动；同时第一金属线24和第二金属线25并联，减小扇出区20走线的阻抗。
作为本申请的另一实施例，如图4至图12所示，公开了一种显示装置10，显示装置10包括上述显示面板11。
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-Plane Switching，平面转换)、VA面板(Multi-domain Vertical Alignment，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的详细说明，不能认定本申请的具体实施只局限于这些说明。对于本申请所属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的保护范围。

Claims (20)

  1. 一种显示面板，所述显示面板包括：
    显示区，包括数据线和扫描线，所述数据线和所述扫描线垂直分布；
    非显示区，环绕所述显示区设置，包括多条第一金属线，所述第一金属线与所述数据线或所述扫描线连接，多条所述第一金属线位于同一层；以及
    驱动电路，通过所述第一金属线跟所述数据线或所述扫描线连接；
    其中，所述非显示区包括多个扇出区，所述驱动电路包括多个子驱动电路，所述扇出区为每个所述子驱动电路连接的所有所述第一金属线构成的区域，所述扇出区连接所述显示区和所述驱动电路；
    所述扇出区包括多条第二金属线，每一条所述第二金属线位于两个相邻的所述第一金属线之间；
    所述扇出区的表面平整。
  2. 如权利要求1所述的一种显示面板，其中，每条所述第二金属线的两端都与相邻的一条所述第一金属线连接。
  3. 如权利要求2所述的一种显示面板，其中，所述扇出区包括重叠区，所述重叠区为所述第二金属线的两端与所述第一金属线堆叠形成的区域。
  4. 如权利要求3所述的一种显示面板，其中，所述重叠区包括转接过孔和导电层；所述导电层透过所述转接过孔，分别与第一金属线和第二金属线连接。
  5. 如权利要求4所述的一种显示面板，其中，所述转接过孔包括第一转接过孔和第二转接过孔，所述第一转接过孔裸露出所述第一金属线，所述第二转接过孔裸露所述第二金属线，所述导电层透过所述第一转接过孔和所述第二转接过孔，分别与所述第一金属线和所述第二金属线连接。
  6. 如权利要求5所述的一种显示面板，其中，所述一个重叠区中含有多个所述第一转接过孔和多个所述第二转接过孔。
  7. 如权利要求1所述的一种显示面板，其中，所述扇出区还包括第一绝缘层、第二绝缘层和基底，所述第一金属线设置于所述基底的表面，所 述第一绝缘层设置于所述第一金属线的表面，所述第二金属线设置于所述第一绝缘层的表面，所述第二绝缘层设置于所述第二金属线的表面。
  8. 如权利要求1所述的一种显示面板，其中，所述扇出区包括第一直线区、第二直线区和斜线区，所述斜线区设置于所述第一直线区和所述第二直线区之间，所述第一直线区与所述显示区相邻，所述第二直线区与所述驱动电路相邻。
  9. 如权利要求8所述的一种显示面板，其中，所述第二金属线与所述第一金属线连接，且连接处分别位于所述第一直线区和所述第二直线区。
  10. 如权利要求4所述的一种显示面板，其中，所述重叠区包括第三绝缘层，所述第三绝缘层位于所述第一金属线的表面，所述第二金属线位于所述第三绝缘层的表面，所述转接过孔裸露所述第一金属线，所述导电层透过所述转接过孔分别与所述第一金属线和所述第二金属线连接。
  11. 如权利要求3所述的一种显示面板，其中，所述第二金属线在所述重叠区的部分与未在所述重叠区部分的夹角为钝角。
  12. 如权利要求4所述的一种显示面板，其中，所述导电层的材料为氧化铟锡。
  13. 一种显示面板，所述显示面板划分显示区和非显示区，显示面板包括含有多个子驱动电路的驱动电路；
    所述非显示区包括多条第一金属线，所述第一金属线的一端连接显示区中的数据线或扫描线，另一端连接子驱动电路；且多条所述第一金属线位于同一层；
    所述非显示区包括多个扇出区，所述扇出区为每个所述子驱动电路连接的所有所述第一金属线构成的区域；
    所述扇出区包括多条第二金属线、导电层、第一转接过孔、第二转接过孔、第一绝缘层和第二绝缘层；
    所述第一绝缘层设置在所述第一金属线的表面；
    所述第二金属线设置在所述第一绝缘层上，每一条所述第二金属线位于两个相邻的所述第一金属线之间，每一条所述第二金属线的两端都设置在相邻所述第一金属线的正上方，且所述第二金属线的表面与所述第一绝 缘层的表面平齐；
    所述第二绝缘层设置在所述第二金属线的表面，所述第一转接过孔暴露出所述第一金属线，所述第二转接过孔暴露出所述第二金属线，所述导电层连接所述第一转接过孔暴露出的所述第一金属线和所述第二转接过孔暴露出的所述第二金属线。
  14. 一种显示装置，所述显示装置包括显示面板，所述显示面板包括：
    显示区，包括数据线和扫描线，所述数据线和所述扫描线垂直分布；
    非显示区，环绕所述显示区设置，包括多条第一金属线，所述第一金属线与所述数据线或所述扫描线连接，多条所述第一金属线位于同一层；以及
    驱动电路，通过所述第一金属线跟所述数据线或所述扫描线连接；
    其中，所述非显示区包括多个扇出区，所述驱动电路包括多个子驱动电路，所述扇出区为每个所述子驱动电路连接的所有所述第一金属线构成的区域，所述扇出区连接所述显示区和所述驱动电路；
    所述扇出区包括多条第二金属线，每一条所述第二金属线位于两个相邻的所述第一金属线之间；
    所述扇出区的表面平整。
  15. 如权利要求14所述的一种显示装置，其中，每条所述第二金属线的两端都与相邻的一条所述第一金属线连接。
  16. 如权利要求15所述的一种显示装置，其中，所述扇出区包括重叠区，所述重叠区为所述第二金属线的两端与所述第一金属线堆叠形成的区域；
    所述重叠区包括转接过孔和导电层；所述导电层透过所述转接过孔，分别与所述第一金属线和所述第二金属线连接。
  17. 如权利要求16所述的一种显示装置，其中，所述转接过孔包括第一转接过孔和第二转接过孔，所述第一转接过孔裸露出所述第一金属线，所述第二转接过孔裸露所述第二金属线，所述导电层透过所述第一转接过孔和所述第二转接过孔，分别与所述第一金属线和所述第二金属线连接。
  18. 如权利要求17所述的一种显示装置，其中，所述一个重叠区中含 有多个所述第一转接过孔和多个所述第二转接过孔。
  19. 如权利要求14所述的一种显示装置，其中，所述扇出区还包括第一绝缘层、第二绝缘层和基底，所述第一金属线设置于所述基底的表面，所述第一绝缘层设置于所述第一金属线的表面，所述第二金属线设置于所述第一绝缘层的表面，所述第二绝缘层设置于所述第二金属线的表面。
  20. 如权利要求14所述的一种显示装置，其中，所述扇出区包括第一直线区、第二直线区和斜线区，所述斜线区设置于所述第一直线区和所述第二直线区之间，所述第一直线区与所述显示区相邻，所述第二直线区与所述驱动电路相邻；
    所述第二金属线与所述第一金属线连接，且连接处分别位于所述第一直线区和所述第二直线区。
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