WO2022160399A1 - 显示面板及显示装置 - Google Patents

显示面板及显示装置 Download PDF

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Publication number
WO2022160399A1
WO2022160399A1 PCT/CN2021/077817 CN2021077817W WO2022160399A1 WO 2022160399 A1 WO2022160399 A1 WO 2022160399A1 CN 2021077817 W CN2021077817 W CN 2021077817W WO 2022160399 A1 WO2022160399 A1 WO 2022160399A1
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WO
WIPO (PCT)
Prior art keywords
bending
area
driving
density
display
Prior art date
Application number
PCT/CN2021/077817
Other languages
English (en)
French (fr)
Inventor
周宁宁
王亚男
靳增建
鞠锐
李纪辉
张乔雅
宋振波
葛腾飞
Original Assignee
武汉华星光电半导体显示技术有限公司
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.)
Filing date
Publication date
Application filed by 武汉华星光电半导体显示技术有限公司 filed Critical 武汉华星光电半导体显示技术有限公司
Priority to US17/284,452 priority Critical patent/US20240130174A1/en
Publication of WO2022160399A1 publication Critical patent/WO2022160399A1/zh

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/03—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes specially adapted for displays having non-planar surfaces, e.g. curved displays
    • G09G3/035—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes specially adapted for displays having non-planar surfaces, e.g. curved displays for flexible display surfaces
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
    • 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
    • G09G3/22—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 using controlled light sources
    • G09G3/30—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 using controlled light sources using electroluminescent panels
    • G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3266—Details of drivers for scan electrodes
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/131—Interconnections, e.g. wiring lines or terminals
    • G—PHYSICS
    • 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
    • G09G2310/0264—Details of driving circuits
    • G09G2310/0267—Details of drivers for scan electrodes, other than drivers for liquid crystal, plasma or OLED displays
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2380/00—Specific applications
    • G09G2380/02—Flexible displays
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K2102/00—Constructional details relating to the organic devices covered by this subclass
    • H10K2102/301—Details of OLEDs
    • H10K2102/311—Flexible OLED

Definitions

  • the present application relates to the field of display technology, and in particular, to a display panel and a display device.
  • folding display terminals have gradually entered people's field of vision.
  • the folding display screen in the unfolded state, the folding display screen can obtain a larger display area and improve the viewing effect.
  • the foldable display screen When the foldable display screen is in the folded state, it has a smaller volume, which is convenient for users to carry.
  • This huge advantage makes the folding display gradually become a development trend of the display panel industry in the future.
  • the folding display screen cannot avoid multiple bending during use. After the bending position of the display panel (panel) is bent many times, the problem of gate drive failure may easily occur, which may cause the screen to fail to receive some gates. The output signal of the driver is displayed badly.
  • the gate driving circuit is located in a side frame area of the display terminal, the gate driving circuit includes a plurality of gate driving units, and the driving lines are all connected from the output end of the corresponding gate driving unit to the The wires are routed to the display area of the display terminal in a straight line. Therefore, a corresponding gate driving unit also needs to be arranged in the bending area of the frame. However, after the gate driving unit is folded for many times, damage is likely to occur, resulting in failure of the gate driving, which in turn leads to poor display.
  • the present application provides a display panel and a display device, which alleviates the problem that the display failure of the bending area is prone to occur during the use of the folding display terminal.
  • the present application provides a display panel, the display panel is provided with a non-bending frame area, a bending frame area and a bending display area; the display panel includes a gate driving circuit and a plurality of driving wires; the gate driving circuit includes a plurality of There are cascaded gate driving units, the gate driving units are distributed in at least one non-bending frame area at a first density, and the gate driving units are distributed in the bending frame area at a second density; the driving lines are correspondingly connected to the gate driving units, At least one driving line is located in the bending display area; wherein, the first density is greater than the second density; and the second density is greater than or equal to zero.
  • the bending frame area includes a bending main area and two bending transition areas; the bending main area is located between the two bending transition areas; The transition area is located between the bending main area and the non-bending frame area; the gate driving units are distributed in the bending transition area at a third density, and the gate driving units are distributed in the bending main area at a fourth density; wherein the first density is greater than the third density, and the third density is greater than or equal to the fourth density.
  • the bending frame area further includes a first non-bending frame sub-area and a second non-bending frame sub-area;
  • the bending frame sub-area is located between the bending main area and one of the bending transition areas;
  • the second non-bending frame sub-area is located between the bending main area and the other bending transition area;
  • the gate driving unit uses the fifth
  • the density is distributed in at least one of the first non-bending frame sub-region and the second non-bending frame sub-region; wherein the first density is greater than the fifth density, and the fifth density is greater than the third density.
  • the display panel is provided with a display area and a first frame area on one side of the display area; the display area is provided with at least two non-curved A folding display area and a bending display area located between two adjacent non-bending display areas; the first frame area is provided with at least two non-bending frame areas and a bending display area located between the two adjacent non-bending frame areas Bend the border area.
  • the curved display area and the curved frame area are adjacent to each other and located in the same rectangular area.
  • At least one driving wiring includes a driving connecting line and a driving output line; the first end of the driving connecting line is connected to the corresponding gate driving unit; The second end is connected with one end of the driving output line; the driving connecting line is located in the first frame area; the driving output line is located in the display area.
  • At least one driving connection line is located in the non-bending frame area and/or the bending frame area; at least one driving output line is located in the bending frame area. in the folded display area.
  • the driving connection line includes a first driving connection part, a second driving connection part and a third driving connection part which are connected in sequence;
  • the drive connection portion is parallel to the third drive connection portion;
  • the second drive connection portion intersects at least one of the first drive connection portion and the third drive connection portion.
  • the display panel is provided with at least two non-bending frame areas; each non-bending frame area has the same or a similar number of gate drive unit.
  • the bendable radius of the bending display area is R
  • the width of the gate driving unit is W
  • the driving lines located in the bending display area are The number ranges from 2 ⁇ R/W-100 to 2 ⁇ R/W+100.
  • the present application provides a display panel, the display panel is provided with a non-bending frame area, a bending frame area and a bending display area; the display panel includes a gate driving circuit and a plurality of driving wires;
  • the gate drive circuit includes a plurality of gate drive units that are cascaded and located in the same column, the gate drive units are distributed in at least one of the non-bending border regions at a first density, and the gate drive units are distributed at a second density in the bending frame area; the driving wires are correspondingly connected to the gate driving units, and at least one of the driving wires is located in the bending display area; wherein the first density is greater than the second density ; and the second density is greater than or equal to zero.
  • the present application provides a display device including the display panel in any one of the foregoing embodiments.
  • gate driving circuits with different density distributions are arranged in the folded frame area and the non-folded frame area, and the corresponding driving wires are adjusted from the output end of the gate driving circuit to the corresponding wire.
  • FIG. 1 is a schematic structural diagram of a display panel in a conventional technical solution.
  • FIG. 2 is a schematic structural diagram of a display panel according to an embodiment of the present application.
  • FIG. 3 is a schematic diagram of the first structure of the driving wiring in FIG. 2 .
  • FIG. 4 is a schematic diagram of a second structure of the driving wiring in FIG. 2 .
  • FIG. 5 is a schematic structural diagram of the first frame area in FIG. 2 .
  • this embodiment provides a display panel.
  • the display panel is provided with a display area AA and a first frame area NA1 located on one side of the display area AA; the display area AA is provided with At least two non-bending display areas AA1 and a bending display area BA located between two adjacent non-bending display areas AA1; the first frame area NA1 is provided with at least two non-bending frame areas NA11 and adjacent non-bending display areas NA11.
  • the bent frame area NBA between the two non-bent frame areas NA11.
  • the display panel includes a gate driving circuit 10 and a plurality of driving lines 20;
  • the gate driving circuit 10 includes a plurality of cascaded gate driving units, the gate driving units are distributed in at least one non-bending frame area NA11 at a first density, and the gate driving units are The cells are distributed in the bending frame area NBA at a second density; the driving wires 20 are correspondingly connected to the gate driving units, and at least one driving wire 20 is located in the bending display area BA; wherein the first density is greater than the second density; and the second The density is greater than or equal to zero.
  • the corresponding density may be, but not limited to, the area of the corresponding region divided by the number of gate driving units in the corresponding region.
  • the first density may be: the area of the non-bending frame area NA11 divided by the number of gate driving units in the non-bending frame area NA11.
  • the first density can also be represented by the spacing between two adjacent gate driving units. Therefore, it can be understood that when the density of the gate driving units is relatively small, it means that the distance between two adjacent gate driving units is relatively large, which can alleviate the bending damage of the gate driving circuit 10 .
  • the gate driving circuit 10 in this embodiment may be, but is not limited to, a GOA type scanning driving circuit, which outputs a corresponding scanning signal.
  • the gate driving circuit 10 may also be a GOA type light-emitting driving circuit, which outputs a corresponding light-emitting control signal. Based on this, it can be understood that the gate driving circuit 10 can also be other GOA type driving circuits, which can output corresponding driving signals for display driving. Therefore, the gate driving circuit 10 in this embodiment may include at least one of the above-mentioned various driving circuits.
  • the corresponding gate driving circuits 10 are arranged in the bending frame area NBA and the non-bending frame area NA11, and the output of the corresponding driving wires 20 from the gate driving circuit 10 is adjusted.
  • Corresponding wiring from the end to the bending display area BA can realize normal driving of the bending display area BA, reduce or avoid damage to the gate driving circuit 10 during the folding process, and alleviate or eliminate the failure problem of gate driving.
  • the display panel may further include at least one of a second frame area NA2, a third frame area NA3 and a fourth frame area NA4.
  • the first frame area NA1 may be, but not limited to, a frame area located on the left side of the display area AA.
  • the second frame area NA2 may be, but is not limited to, a frame area located on the upper side of the display area AA.
  • the third border area NA3 can be, but is not limited to, a border area located on the right side of the display area AA.
  • the fourth frame area NA4 may be, but is not limited to, a frame area located on the lower side of the display area AA.
  • the first frame area NA1 and the third frame area NA3 may be two frame areas disposed on opposite sides, and both have the same shape and/or area.
  • the second border area NA2 and the fourth border area NA4 may be two border areas disposed on opposite sides, and the two have different shapes and/or areas.
  • the area of the fourth border area NA4 may be larger than that of the second border area NA2. area.
  • the layout of the first frame area NA1, the second frame area NA2, the third frame area NA3, and the fourth frame area NA4 of the display panel can be adjusted correspondingly as needed to meet the design requirements of different display products. .
  • the second frame area NA2 is provided with a dummy pixel area NA21.
  • the dummy pixel area NA21 may be provided with, but not limited to, a corresponding pixel, but the pixel is not connected to a corresponding driving signal and/or data signal That is to say, the corresponding driving wiring 20 and/or the data line DL is not set in the dummy pixel area NA21.
  • the fourth frame area NA4 is provided with a chip on film 30 , a cell-test circuit 40 (function test circuit in the cell stage), a first fan-out line area NA41 , a bending area NA42 and a second fan-out line area At least one of NA43.
  • the cell-test circuit 40 (the function test circuit in the cell stage), the first fan-out line area NA41 and the bending area NA42 are located between the chip on film 30 and the second fan-out line area NA43, and the second fan-out line area NA43 is connected to the display
  • the distance of the area AA is smaller than the other distances in the fourth frame area NA4, and the distance between the chip on film 30 and the display area AA is larger than the other distances in the fourth frame area NA4.
  • the bending area NA42 is located between the first fan-out area NA41 and the second fan-out area NA43.
  • the first fan-out line area NA41 is located between the chip on film 30 and the bending area NA42.
  • the shape of the first fan-out line area NA41 may be a trapezoid.
  • the shape of the second fan-out area is an irregular shape, which has at least one arc-shaped portion, and the arc-shaped portion is disposed corresponding to the arc-shaped corner of the display panel.
  • the display area AA of the display panel is further provided with data lines DL intersecting with the driving wires 20 , and the data lines DL are evenly distributed in the width direction of the display panel.
  • a first clock signal line CK1 and a second clock signal line CK2 which are located on one side of the gate driving circuit 10 and away from the display area AA are further provided.
  • the gate driving units are linked with the first clock signal line CK1 and the second clock signal line CK2.
  • the second clock signal line CK2 is located between the first clock signal line CK1 and the gate driving circuit 10 .
  • the bending display area BA and the bending frame area NBA may be adjacent to each other and located in the same rectangular area.
  • the bending display area BA and the bending frame area NBA have the same width area in the length direction of the display panel, and the bending display area BA and the bending frame area NBA are in the width direction of the display panel or not.
  • the orthographic projections on a certain plane overlap each other. In this way, the display area AA and the frame area of the display panel can have the same bendable radius.
  • the bendable radius of the bending frame area NBA and/or the bending display area BA is R
  • the width of the gate driving unit is W
  • the number of driving lines 20 in the bending display area BA is The range is 2 ⁇ R/W-100 to 2 ⁇ R/W+100.
  • the number range of the driving wires 20 located in the bending display area BA may also be the number after rounding of 2 ⁇ R/W.
  • the number of driving wires 20 in the bent display area BA can be easily determined, which provides a more specific reference for the layout of the gate driving circuit 10 and the driving wires 20 on the display panel. design.
  • the gate driving units in the bent frame area NBA can be extruded and arranged to the adjacent non-bending frame area NA11, and there are no gate driving units in the bent frame area NBA, but only corresponding wirings, thereby It is avoided that the wires and/or devices in the gate driving unit are cracked due to excessive bending times, resulting in failure of the gate driving.
  • the width of one gate driving unit may be, but not limited to, 0.05 mm to 0.09 mm, and specifically, may be any one of 0.06 mm, 0.07 mm, and 0.08 mm.
  • the display panel may also be a display panel that can be folded in a teardrop shape.
  • the bendable radius of the display panel may be, but not limited to, 1 mm to 5 mm. Specifically, its bendable radius can also be any one of 2mm, 3mm and 4mm.
  • the width of the gate drive unit is selected as 0.07mm and the bendable radius is 3mm
  • the number of gate drive units that need to be moved and squeezed to the non-bending frame area NA11 is about (2 ⁇ *3)/0.07, That is, about 269 gate driving units need to be moved from the folded frame area NBA to the non-folded frame area NA11 for setting.
  • the curved display area BA and the curved frame area NBA may also be located in different rectangular areas.
  • the bending display area BA and the bending frame area NBA may also have different width areas in the length direction of the display panel, and the bending display area BA and the bending frame area NBA are in the width of the display panel. direction, the orthographic projections on a certain plane partially overlap. In this way, the display area AA and the frame area of the display panel can be bent asymmetrically to a greater extent.
  • a plurality of gate driving units may be, but not limited to, located in the same column, and two adjacent gate driving units are cascaded.
  • the gate driving circuit 10 includes a first-level gate driving unit, a second-level gate driving unit, a third-level gate driving unit to an N/2-th gate driving unit, and an N/2+1-th gate driving unit.
  • the stage gate driving unit to the N-2 stage gate driving unit, the N-1 stage gate driving unit, and the Nth stage gate driving unit.
  • the first-stage gate driving unit is connected to the initial signal line STV.
  • the gate driving unit of the first stage is cascaded with the gate driving unit of the second stage.
  • the second-level gate driving unit is cascaded with the third-level gate driving unit.
  • N is an integer greater than or equal to 1.
  • the first frame area NA1 of the display panel is provided with at least two non-bending frame areas NA11 ; each non-bending frame area NA11 has the same or similar number of gate driving units.
  • N/2 gate driving units are arranged in one of the non-bending frame areas NA11
  • N/2 gate driving units are also arranged in the other non-bending frame area NA11 .
  • the two non-bending frame areas NA11 have the same number of gate driving units, and the symmetrical design of the two non-bending frame areas NA11 can be realized, the complexity of the design is reduced, and the manufacturing process is simplified.
  • the two non-bending frame areas NA11 can also be set to have a similar number of gate driving units.
  • the number of gate driving units in one non-bending frame area NA11 is larger than that in the other non-bending frame area NA11.
  • the number of drive units is increased by one or two; in this case, the non-standard design of the gate drive unit can be satisfied or the spare gate drive unit needs to be reserved.
  • the driving traces 20 connected to the first-level gate driving unit and the N-th level gate driving unit are presented as straight lines as a whole, and have no corresponding broken line parts.
  • the corresponding at least one driving line 20 includes a driving connection line 21 and a driving output line 22; driving The first end of the connecting line 21 is connected with the corresponding gate driving unit; the second end of the driving connecting line 21 is connected with one end of the driving output line 22; the driving connecting line 21 is located in the first frame area NA1; the driving output line 22 is located in the display area AA.
  • At least one driving connection line 21 is located in the non-bending frame area NA11 and/or the bending frame area NBA; at least one driving output line 22 is located in the bending display area BA.
  • the driving output line 22 is located in the display area AA or the bending display area BA, and can provide driving signals for the pixels in the corresponding display area AA, so as to realize normal driving display.
  • the driving connection line 21 may be, but not limited to, a broken line, and may also be a curved line.
  • the zigzag-type driving connection line 21 includes a first driving connection part 211 , a second driving connection part 212 and a third driving connection part 213 connected in sequence; the first driving connection part 211 is parallel to the third driving connection part 211 The connecting portion 213 ; the second driving connecting portion 212 intersects at least one of the first driving connecting portion 211 and the third driving connecting portion 213 .
  • the second driving connection part 212 may be, but not limited to, perpendicular to at least one of the first driving connection part 211 and the third driving connection part 213 .
  • the second drive connection portion 212 may also intersect at least one of the first drive connection portion 211 and the third drive connection portion 213 obliquely.
  • the first driving connecting portion 211 is located on the upper side of the third driving connecting portion 213 , which can be realized when the corresponding gate driving units are more densely distributed.
  • the driving traces 20 are uniformly distributed or approximately uniformly distributed in the display area AA. For example, the gate driving units before the N/2-th gate driving unit can be laid out using this situation.
  • the first driving connecting portion 211 is located on the lower side of the third driving connecting portion 213 , which can realize the driving away when the corresponding gate driving units are more densely distributed. Uniform or approximately uniform distribution of lines 20 in display area AA. For example, the gate driving units following the N/2+1 th gate driving unit can be laid out using this situation.
  • the bending frame area NBA includes a bending main area NBA2 and two bending transition areas NBA1; the bending main area NBA2 is located between the two bending transition areas NBA1; The bending transition area NBA1 is located between the bending main area NBA2 and the non-bending frame area NA11; the gate driving units are distributed in the bending transition area NBA1 at a third density, and the gate driving units are distributed in the bending main area NBA2 at a fourth density ; wherein, the first density is greater than the third density, and the third density is greater than or equal to the fourth density.
  • the fourth density can be, but is not limited to, equal to zero; it can also be greater than zero.
  • the bending transition area NBA1 is subjected to less stress during the bending process, and is more suitable for arranging the corresponding gate driving circuit 10 in this area.
  • the bent frame area NBA further includes a first non-bent frame sub-area NBA3 and a second non-bent frame sub-area NBA4; the first non-bent frame sub-area NBA3 is located in Between the bending main area NBA2 and one of the bending transition areas NBA1; the second non-bending frame sub-area NBA4 is located between the bending main area NBA2 and the other bending transition area NBA1; the gate driving unit is at a fifth density Distributed in at least one of the first non-bending frame sub-area NBA3 and the second non-bending frame sub-area NBA4; wherein the first density is greater than the fifth density, and the fifth density is greater than the third density.
  • first non-bending frame sub-area NBA3 and the second non-bending frame sub-area NBA4 are basically not subjected to stress during the bending process. The stress received is almost negligible. Therefore, the corresponding gate driving circuits 10 in the first non-bending frame sub-region NBA3 and the second non-bending frame sub-region NBA4 can reduce or eliminate the bending damage of the gate driving circuit 10. .
  • this embodiment provides a display device, which includes the display panel in any of the above-mentioned embodiments.
  • the display device may be, but not limited to, a foldable computer, or may also be a foldable mobile phone.
  • the corresponding gate driving circuits 10 are arranged in the folded frame area NBA and the non-folded frame area NA11, and the output of the corresponding driving wires 20 from the gate driver circuit 10 is adjusted.
  • Corresponding wiring from the end to the bending display area BA can realize normal driving of the bending display area BA, reduce or avoid damage to the gate driving circuit 10 during the folding process, and alleviate or eliminate the failure problem of gate driving.
  • the above-mentioned display panel can be, but is not limited to, an OLED display screen, which is a display screen made of organic self-light emitting diodes. Due to the self-luminous organic electroluminescent diode, no backlight, high contrast ratio, thin thickness, wide viewing angle, fast response speed, flexible panels, wide operating temperature range, simple structure and process are excellent characteristics. , is considered to be the next-generation flat-panel display emerging application technology.

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

Abstract

本申请公开了一种显示面板及显示装置，该显示面板包括栅驱动电路和多条驱动走线；通过在非弯折边框区中设置不同密度分布的栅驱动电路，并调整对应的驱动走线从栅驱动电路的输出端对应走线至弯折显示区，既可以实现弯折显示区的正常驱动，同时可以减少或者避免在折叠过程中对栅驱动电路造成损伤。

Description

显示面板及显示装置 技术领域
本申请涉及显示技术领域，具体涉及一种显示面板及显示装置。
 背景技术
随着显示技术的不断发展，折叠显示终端逐渐进入人们的视野。众所周知，折叠显示屏在展开状态下，能够获得较大的显示面积，提升观影效果。而折叠显示屏在折叠状态下时，其具有较小的体积，便于用户携带。这一巨大优势使折叠显示屏逐渐成为未来显示面板行业的一个发展趋势。然而，折叠显示屏在使用过程中避免不了多次弯折，显示面板（panel）的弯折位置在多次弯折之后，容易出现栅驱动失效的问题，可能导致屏幕因接收不到某些栅驱动的输出信号而显示不良。
具体地，如图1所示，在传统技术方案中，栅驱动电路位于显示终端的一个侧边框区，该栅驱动电路包括多个栅驱动单元，驱动线均从对应栅驱动单元的输出端以直线形式走线至显示终端的显示区，因此，需要在边框的弯折区同样设置有对应的栅驱动单元。而栅驱动单元在多次弯折之后，容易出现损伤，致使栅驱动失效，进而导致显示不良。
需要注意的是，上述关于背景技术的介绍仅仅是为了便于清楚、完整地理解本申请的技术方案。因此，不能仅仅由于其出现在本申请的背景技术中，而认为上述所涉及到的技术方案为本领域所属技术人员所公知的。
 技术问题
本申请提供一种显示面板及显示装置，缓解了折叠显示终端在使用过程中容易出现弯折区显示失效的问题。
 技术解决方案
第一方面，本申请提供一种显示面板，显示面板设置有非弯折边框区、弯折边框区以及弯折显示区；显示面板包括栅驱动电路和多条驱动走线；栅驱动电路包括多个级联的栅驱动单元，栅驱动单元以第一密度分布于至少一个非弯折边框区，且栅驱动单元以第二密度分布于弯折边框区；驱动走线与栅驱动单元对应连接，至少一条驱动走线位于弯折显示区；其中，第一密度大于第二密度；且第二密度大于或者等于零。
基于第一方面，在第一方面的第一种实施方式中，弯折边框区包括弯折主区和两个弯折过渡区；弯折主区位于两个弯折过渡区之间；弯折过渡区位于弯折主区与非弯折边框区之间；栅驱动单元以第三密度分布于弯折过渡区，且栅驱动单元以第四密度分布于弯折主区；其中，第一密度大于第三密度，且第三密度大于或者等于第四密度。
基于第一方面的第一种实施方式，在第一方面的第二种实施方式中，弯折边框区还包括第一非弯折边框子区和第二非弯折边框子区；第一非弯折边框子区位于弯折主区与其中一个弯折过渡区之间；第二非弯折边框子区位于弯折主区与其中另一个弯折过渡区之间；栅驱动单元以第五密度分布于第一非弯折边框子区和第二非弯折边框子区中的至少一个；其中，第一密度大于第五密度，且第五密度大于第三密度。
基于第一方面的第二种实施方式，在第一方面的第三种实施方式中，显示面板设置有显示区和位于显示区一侧的第一边框区；显示区设置有至少两个非弯折显示区和位于相邻两个非弯折显示区之间的弯折显示区；第一边框区设置有至少两个非弯折边框区和位于相邻两个非弯折边框区之间的弯折边框区。
基于第一方面的第三种实施方式，在第一方面的第四种实施方式中，弯折显示区与弯折边框区相互邻接且位于同一矩形区域中。
基于第一方面，在第一方面的第五种实施方式中，至少一条驱动走线包括驱动连接线和驱动输出线；驱动连接线的第一端与对应的栅驱动单元连接；驱动连接线的第二端与驱动输出线的一端连接；驱动连接线位于第一边框区；驱动输出线位于显示区。
基于第一方面的第五种实施方式，在第一方面的第六种实施方式中，至少一条驱动连接线位于非弯折边框区和/或弯折边框区中；至少一条驱动输出线位于弯折显示区中。
基于第一方面的第五种实施方式，在第一方面的第七种实施方式中，驱动连接线包括依次连接的第一驱动连接部、第二驱动连接部以及第三驱动连接部；第一驱动连接部平行于第三驱动连接部；第二驱动连接部与第一驱动连接部和第三驱动连接部中的至少一个相交。
基于第一方面，在第一方面的第八种实施方式中，两个相邻的栅驱动单元级联。
基于第一方面的第八种实施方式，在第一方面的第九种实施方式中，显示面板设置有至少两个非弯折边框区；每个非弯折边框区中具有相同或者相近数量的栅驱动单元。
基于上述任一种实施方式，在第一方面的第十种实施方式中，弯折显示区的可弯折半径为R，栅驱动单元的宽度为W，则位于弯折显示区中驱动走线的数量范围为2πR/W-100至2πR/W+100。
第二方面，本申请提供一种显示面板，所述显示面板设置有非弯折边框区、弯折边框区以及弯折显示区；所述显示面板包括栅驱动电路和多条驱动走线；所述栅驱动电路包括多个级联且位于同一列的栅驱动单元，所述栅驱动单元以第一密度分布于至少一个所述非弯折边框区，且所述栅驱动单元以第二密度分布于所述弯折边框区；所述驱动走线与所述栅驱动单元对应连接，至少一条所述驱动走线位于所述弯折显示区；其中，所述第一密度大于所述第二密度；且所述第二密度大于或者等于零。
第三方面，本申请提供一种显示装置，其包括上述任一实施方式中的显示面板。
 有益效果
本申请提供的显示面板及显示装置，通过在弯折边框区、非弯折边框区中设置不同密度分布的栅驱动电路，并调整对应的驱动走线从栅驱动电路的输出端对应走线至弯折显示区，既可以实现弯折显示区的正常驱动，同时可以减少或者避免在折叠过程中对栅驱动电路造成损伤，能够缓解或者消除弯折区显示失效的问题。
 附图说明
图1为传统技术方案中显示面板的结构示意图。
图2为本申请实施例提供的显示面板的结构示意图。
图3为图2中驱动走线的第一种结构示意图。
图4为图2中驱动走线的第二种结构示意图。
图5为图2中第一边框区的一种结构示意图。
 本发明的实施方式
为使本申请的目的、技术方案及效果更加清楚、明确，以下参照附图并举实施例对本申请进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本申请，并不用于限定本申请。
请参阅图2至图4，如图2所示，本实施例提供了一种显示面板，显示面板设置有显示区AA和位于显示区AA一侧的第一边框区NA1；显示区AA设置有至少两个非弯折显示区AA1和位于相邻两个非弯折显示区AA1之间的弯折显示区BA；第一边框区NA1设置有至少两个非弯折边框区NA11和位于相邻两个非弯折边框区NA11之间的弯折边框区NBA。显示面板包括栅驱动电路10和多条驱动走线20；栅驱动电路10包括多个级联的栅驱动单元，栅驱动单元以第一密度分布于至少一个非弯折边框区NA11，且栅驱动单元以第二密度分布于弯折边框区NBA；驱动走线20与栅驱动单元对应连接，至少一条驱动走线20位于弯折显示区BA；其中，第一密度大于第二密度；且第二密度大于或者等于零。
需要进行说明的是，本实施例中对应密度可以但不限于为对应区域的面积除以栅驱动单元在该对应区域中的数量。例如，第一密度可以为：非弯折边框区NA11的面积除以栅驱动单元在非弯折边框区NA11中的数量。第一密度还可以采用两个相邻的栅驱动单元之间的间距来表示。因此，可以理解的是，当栅驱动单元的密度较小时，说明两个相邻的栅驱动单元之间的距离较大，这种情况可以缓解栅驱动电路10的弯折受损情况。
其中，本实施例中的栅驱动电路10可以但不限于为GOA型扫描驱动电路，其输出对应的扫描信号。栅驱动电路10还可以为GOA型发光驱动电路，其输出对应的发光控制信号。基于此，可以理解的是，栅驱动电路10还可以为其它的GOA型驱动电路，其可以输出对应的驱动信号，以用于显示驱动。因此，本实施例中的栅驱动电路10可以包括上述各种驱动电路中的至少一种。
可以理解的是，本申请提供的显示面板，通过在弯折边框区NBA、非弯折边框区NA11中设置对应的栅驱动电路10，并调整对应的驱动走线20从栅驱动电路10的输出端对应走线至弯折显示区BA，既可以实现弯折显示区BA的正常驱动，同时可以减少或者避免在折叠过程中对栅驱动电路10造成损伤，能够缓解或者消除栅驱动的失效问题。
在其中一个实施例中，该显示面板还可以包括第二边框区NA2、第三边框区NA3以及第四边框区NA4中的至少一个。具体地，第一边框区NA1可以但不限于是位于显示区AA左侧的一个边框区。第二边框区NA2可以但不限于是位于显示区AA上侧的一个边框区。第三边框区NA3可以但不限于是位于显示区AA右侧的一个边框区。第四边框区NA4可以但不限于是位于显示区AA下侧的一个边框区。
可以理解的是，第一边框区NA1与第三边框区NA3可以是对边设置的两个边框区，两者具有相同的形状和/或面积。第二边框区NA2与第四边框区NA4可以是对边设置的两个边框区，两者具有不同的形状和/或面积，例如，第四边框区NA4的面积可以大于第二边框区NA2的面积。其中，在该显示面板中，在相邻的两个边框区的交接区，具有一个弧形边缘，使得该显示面板可以实现弧形角，具有弧形的优美曲线。
可以理解的是，该显示面板的第一边框区NA1、第二边框区NA2、第三边框区NA3以及第四边框区NA4的布局可以根据需要进行对应的调整，以满足不同显示产品的设计需求。
在其中一个实施例中，第二边框区NA2设置有虚拟像素区NA21，该虚拟像素区NA21可以但不限于设置有对应的像素，但是该像素并未接入对应的驱动信号和/或数据信号，也就是说，在该虚拟像素区NA21并未设置对应的驱动走线20和/或数据线DL。
在其中一个实施例中，第四边框区NA4设置有覆晶薄膜30、cell-test电路40（cell阶段的功能测试电路）、第一扇出线区NA41、弯折区NA42以及第二扇出线区NA43中的至少一个。其中，cell-test电路40（cell阶段的功能测试电路）、第一扇出线区NA41以及弯折区NA42位于覆晶薄膜30与第二扇出线区NA43之间，第二扇出线区NA43与显示区AA的距离小于第四边框区NA4中其它的距离，覆晶薄膜30与显示区AA的距离大于第四边框区NA4中其它的距离。弯折区NA42位于第一扇出线区NA41与第二扇出线区NA43之间。第一扇出线区NA41位于覆晶薄膜30与弯折区NA42之间。其中，第一扇出线区NA41的形状可以为梯形。第二扇出区的形状为非规则形状，其至少具有一个弧形部，该弧形部与显示面板的弧形角相对应设置。
在其中一个实施例中，该显示面板的显示区AA还设置有与驱动走线20相交的数据线DL，这些数据线DL在该显示面板的宽度方向上均匀地分布。
在其中一个实施例中，在该显示面板的第一边框区NA1中，还设置有位于栅驱动电路10一侧且远离显示区AA的第一时钟信号线CK1和第二时钟信号线CK2，每个栅驱动单元与第一时钟信号线CK1和第二时钟信号线CK2链接。其中，第二时钟信号线CK2位于第一时钟信号线CK1与栅驱动电路10之间。
在其中一个实施例中，弯折显示区BA与弯折边框区NBA可以相互邻接且位于同一矩形区域中。具体地，弯折显示区BA与弯折边框区NBA在该显示面板的长度方向上，具有相同的宽度区域，且弯折显示区BA与弯折边框区NBA在该显示面板的宽度方向或者非弯折方向上，在某一平面上的正投影相互重叠。这样可以使得该显示面板的显示区AA和边框区具有一致的可弯折半径。
在其中一个实施例中，弯折边框区NBA和/或弯折显示区BA的可弯折半径为R，栅驱动单元的宽度为W，则位于弯折显示区BA中驱动走线20的数量范围为2πR/W-100至2πR/W+100。具体地，位于弯折显示区BA中驱动走线20的数量范围还可以为2πR/W进行取整后的数量。
可以理解的是，基于上述分析，可方便地确定弯折显示区BA中驱动走线20的数量，为栅驱动电路10以及驱动走线20在显示面板上的布局提供了更为具体地的参考设计。
例如，在实施中，可以将弯折边框区NBA的栅驱动单元向与其相邻的非弯折边框区NA11挤压排列，弯折边框区NBA中无栅驱动单元，只有对应的走线，从而避免弯折次数过多而造成栅驱动单元中的走线和/或器件碎裂（crack），而导致栅驱动的失效。
具体地，在本实施例中，一个栅驱动单元的宽度可以但不限于为0.05mm至0.09mm，具体地，还可以为0.06mm、0.07mm以及0.08mm中的任一个。
在其中一个实施例中，显示面板还可以为可实现水滴状折叠的显示面板。该显示面板的可弯折半径可以但不限于为1mm至5mm。具体地，其可弯折半径还可以为2mm、3mm以及4mm中的任一个。对应地，当选取栅驱动单元的宽度为0.07mm，可弯折半径为3mm时，则需要移动并挤压至非弯折边框区NA11的栅驱动单元数量约为（2π*3）/0.07，即约为269个栅驱动单元需要从弯折边框区NBA移动至非弯折边框区NA11进行设置。
在其中一个实施例中，弯折显示区BA与弯折边框区NBA还可以位于不同的矩形区域中。具体地，弯折显示区BA与弯折边框区NBA在该显示面板的长度方向上，也可以具有不相同的宽度区域，且弯折显示区BA与弯折边框区NBA在该显示面板的宽度方向上，在某一平面上的正投影部分重叠。这样可以使得该显示面板的显示区AA和边框区实现更大幅度的非对称弯折。
在其中一个实施例中，多个栅驱动单元可以但不限于位于同一列，两个相邻的栅驱动单元级联。
具体地，如图2所示，栅驱动电路10包括第1级栅驱动单元、第2级栅驱动单元、第3级栅驱动单元至第N/2级栅驱动单元、第N/2+1级栅驱动单元至第N-2级栅驱动单元、第N-1级栅驱动单元以及第N级栅驱动单元。其中，第1级栅驱动单元与初始信号线STV连接。例如，第1级栅驱动单元与第2级栅驱动单元进行级联。第2级栅驱动单元与第3级栅驱动单元进行级联。其中，N为大于或者等于1的整数。
在其中一个实施例中，显示面板的第一边框区NA1设置有至少两个非弯折边框区NA11；每个非弯折边框区NA11中具有相同或者相近数量的栅驱动单元。例如，在其中一个非弯折边框区NA11中设置有N/2个栅驱动单元，另一个非弯折边框区NA11中同样设置有N/2个栅驱动单元。两个非弯折边框区NA11具有相同数量的栅驱动单元，可以实现两个非弯折边框区NA11的对称设计，降低设计的复杂度，简化制作工艺。当然，两个非弯折边框区NA11也可以设置为相近数量的栅驱动单元，例如，在其中一个非弯折边框区NA11中的栅驱动单元数量比另一个非弯折边框区NA11中的栅驱动单元数量多一个或者两个；这种情况能够满足栅驱动单元的非标设计或者需要留置备用的栅驱动单元。
如图2所示，在其中一个实施例中，与第1级栅驱动单元和第N级栅驱动单元连接的驱动走线20在整体上呈现为直线状，并没有对应的折线部分。如图3或者图4所示，而位于第1级栅驱动单元与第N级栅驱动单元中其它栅驱动单元，对应的至少一条驱动走线20包括驱动连接线21和驱动输出线22；驱动连接线21的第一端与对应的栅驱动单元连接；驱动连接线21的第二端与驱动输出线22的一端连接；驱动连接线21位于第一边框区NA1；驱动输出线22位于显示区AA。
在其中一个实施例中，至少一条驱动连接线21位于非弯折边框区NA11和/或弯折边框区NBA中；至少一条驱动输出线22位于弯折显示区BA中。
可以理解的是，驱动输出线22位于显示区AA或者弯折显示区BA中，可以为对应显示区AA中的像素提供驱动信号，以实现正常的驱动显示。
在其中一个实施例中，驱动连接线21可以但不限于为折线，也可以为曲线。
在其中一个实施例中，折线型的驱动连接线21包括依次连接的第一驱动连接部211、第二驱动连接部212以及第三驱动连接部213；第一驱动连接部211平行于第三驱动连接部213；第二驱动连接部212与第一驱动连接部211和第三驱动连接部213中的至少一个相交。
具体地，第二驱动连接部212可以但不限于与第一驱动连接部211和第三驱动连接部213中的至少一个相垂直。第二驱动连接部212还可以斜置型地与第一驱动连接部211和第三驱动连接部213中的至少一个相交。
具体地，如图3所示，在上部非弯折边框区中，第一驱动连接部211位于第三驱动连接部213的上侧，可以在对应栅驱动单元分布更为密集的情况下，实现驱动走线20在显示区AA中的均匀分布或者近似均匀分布。例如，第N/2级栅驱动单元之前的栅驱动单元均可以采用此种情况进行布局。
如图4所示，在下部非弯折边框区NA11中，第一驱动连接部211位于第三驱动连接部213的下侧，可以在对应栅驱动单元分布更为密集的情况下，实现驱动走线20在显示区AA中的均匀分布或者近似均匀分布。例如，第N/2+1级栅驱动单元之后的栅驱动单元均可以采用此种情况进行布局。
如图5所示，在其中一个实施例中，弯折边框区NBA包括弯折主区NBA2和两个弯折过渡区NBA1；弯折主区NBA2位于两个弯折过渡区NBA1之间；弯折过渡区NBA1位于弯折主区NBA2与非弯折边框区NA11之间；栅驱动单元以第三密度分布于弯折过渡区NBA1，且栅驱动单元以第四密度分布于弯折主区NBA2；其中，第一密度大于第三密度，且第三密度大于或者等于第四密度。
其中，第四密度可以但不限于等于零；其还可以大于零。
需要进行说明的是，与弯折主区NBA2相比，弯折过渡区NBA1在弯折过程中所受到的应力作用更小，更适于在该区域中设置对应的栅驱动电路10。
如图5所示，在其中一个实施例中，弯折边框区NBA还包括第一非弯折边框子区NBA3和第二非弯折边框子区NBA4；第一非弯折边框子区NBA3位于弯折主区NBA2与其中一个弯折过渡区NBA1之间；第二非弯折边框子区NBA4位于弯折主区NBA2与其中另一个弯折过渡区NBA1之间；栅驱动单元以第五密度分布于第一非弯折边框子区NBA3和第二非弯折边框子区NBA4中的至少一个；其中，第一密度大于第五密度，且第五密度大于第三密度。
需要进行说明的是，第一非弯折边框子区NBA3、第二非弯折边框子区NBA4在弯折过程中，基本上不会受到应力作用，与正常的非弯折区相比，所受到的应力几乎可以忽略，因此，在第一非弯折边框子区NBA3、第二非弯折边框子区NBA4中对应的栅驱动电路10，可以减少或者消除栅驱动电路10的弯折受损。
在其中一个实施例中，本实施例提供一种显示装置，其包括上述任一实施例中的显示面板。其中，该显示装置可以但不限于为可折叠电脑，或者也可以为可折叠手机。
可以理解的是，本申请提供的显示装置，通过在弯折边框区NBA、非弯折边框区NA11中设置对应的栅驱动电路10，并调整对应的驱动走线20从栅驱动电路10的输出端对应走线至弯折显示区BA，既可以实现弯折显示区BA的正常驱动，同时可以减少或者避免在折叠过程中对栅驱动电路10造成损伤，能够缓解或者消除栅驱动的失效问题。
上述显示面板可以但不限于为OLED显示屏，其是利用有机电自发光二极管制成的显示屏。由于同时具备自发光有机电激发光二极管，不需背光源、对比度高、厚度薄、视角广、反应速度快、可用于挠曲性面板、使用温度范围广、构造及制程较简单等优异之特性，被认为是下一代的平面显示器新兴应用技术。
可以理解的是，对本领域普通技术人员来说，可以根据本申请的技术方案及其发明构思加以等同替换或改变，而所有这些改变或替换都应属于本申请所附的权利要求的保护范围。

Claims (20)

  1. 一种显示面板，其中，所述显示面板设置有非弯折边框区、弯折边框区以及弯折显示区；所述显示面板包括：
    栅驱动电路，所述栅驱动电路包括多个级联的栅驱动单元，所述栅驱动单元以第一密度分布于至少一个所述非弯折边框区，且所述栅驱动单元以第二密度分布于所述弯折边框区；和
    多条驱动走线，所述驱动走线与所述栅驱动单元对应连接，至少一条所述驱动走线位于所述弯折显示区；
    其中，所述第一密度大于所述第二密度；且所述第二密度大于或者等于零。
  2. 根据权利要求1所述的显示面板，其中，所述弯折边框区包括弯折主区和两个弯折过渡区；所述弯折主区位于两个所述弯折过渡区之间；所述弯折过渡区位于所述弯折主区与所述非弯折边框区之间；所述栅驱动单元以第三密度分布于所述弯折过渡区，且所述栅驱动单元以第四密度分布于所述弯折主区；
    其中，所述第一密度大于所述第三密度，且所述第三密度大于或者等于所述第四密度。
  3. 根据权利要求2所述的显示面板，其中，所述弯折边框区还包括第一非弯折边框子区和第二非弯折边框子区；所述第一非弯折边框子区位于所述弯折主区与其中一个所述弯折过渡区之间；所述第二非弯折边框子区位于所述弯折主区与其中另一个所述弯折过渡区之间；所述栅驱动单元以第五密度分布于所述第一非弯折边框子区和所述第二非弯折边框子区中的至少一个；
    其中，所述第一密度大于所述第五密度，且所述第五密度大于所述第三密度。
  4. 根据权利要求3所述的显示面板，其中，所述显示面板设置有显示区和位于所述显示区一侧的第一边框区；所述显示区设置有至少两个非弯折显示区和位于相邻两个所述非弯折显示区之间的所述弯折显示区；所述第一边框区设置有至少两个所述非弯折边框区和位于相邻两个所述非弯折边框区之间的弯折边框区。
  5. 根据权利要求4所述的显示面板，其中，所述弯折显示区与所述弯折边框区相互邻接且位于同一矩形区域中。
  6. 根据权利要求1所述的显示面板，其中，至少一条所述驱动走线包括驱动连接线和驱动输出线；所述驱动连接线的第一端与对应的所述栅驱动单元连接；所述驱动连接线的第二端与所述驱动输出线的一端连接；所述驱动连接线位于所述第一边框区；所述驱动输出线位于所述显示区。
  7. 根据权利要求6所述的显示面板，其中，至少一条所述驱动连接线位于所述非弯折边框区和/或所述弯折边框区中；至少一条所述驱动输出线位于所述弯折显示区中。
  8. 根据权利要求6所述的显示面板，其中，所述驱动连接线包括依次连接的第一驱动连接部、第二驱动连接部以及第三驱动连接部；所述第一驱动连接部平行于所述第三驱动连接部；所述第二驱动连接部与所述第一驱动连接部和所述第三驱动连接部中的至少一个相交。
  9. 根据权利要求1所述的显示面板，其中，两个相邻的所述栅驱动单元级联。
  10. 根据权利要求9所述的显示面板，其中，所述显示面板设置有至少两个所述非弯折边框区；每个所述非弯折边框区中具有相同或者相近数量的所述栅驱动单元。
  11. 根据权利要求1所述的显示面板，其中，所述弯折显示区的可弯折半径为R，所述栅驱动单元的宽度为W，则位于所述弯折显示区中所述驱动走线的数量范围为2πR/W-100至2πR/W+100。
  12. 一种显示面板，其中，所述显示面板设置有非弯折边框区、弯折边框区以及弯折显示区；所述显示面板包括：
    栅驱动电路，所述栅驱动电路包括多个级联且位于同一列的栅驱动单元，所述栅驱动单元以第一密度分布于至少一个所述非弯折边框区，且所述栅驱动单元以第二密度分布于所述弯折边框区；和
    多条驱动走线，所述驱动走线与所述栅驱动单元对应连接，至少一条所述驱动走线位于所述弯折显示区；
    其中，所述第一密度大于所述第二密度；且所述第二密度大于或者等于零。
  13. 根据权利要求12所述的显示面板，其中，所述弯折边框区包括弯折主区和两个弯折过渡区；所述弯折主区位于两个所述弯折过渡区之间；所述弯折过渡区位于所述弯折主区与所述非弯折边框区之间；所述栅驱动单元以第三密度分布于所述弯折过渡区，且所述栅驱动单元以第四密度分布于所述弯折主区；
    其中，所述第一密度大于所述第三密度，且所述第三密度大于或者等于所述第四密度。
  14. 根据权利要求13所述的显示面板，其中，所述弯折边框区还包括第一非弯折边框子区和第二非弯折边框子区；所述第一非弯折边框子区位于所述弯折主区与其中一个所述弯折过渡区之间；所述第二非弯折边框子区位于所述弯折主区与其中另一个所述弯折过渡区之间；所述栅驱动单元以第五密度分布于所述第一非弯折边框子区和所述第二非弯折边框子区中的至少一个；
    其中，所述第一密度大于所述第五密度，且所述第五密度大于所述第三密度。
  15. 根据权利要求14所述的显示面板，其中，所述显示面板设置有显示区和位于所述显示区一侧的第一边框区；所述显示区设置有至少两个非弯折显示区和位于相邻两个所述非弯折显示区之间的所述弯折显示区；所述第一边框区设置有至少两个所述非弯折边框区和位于相邻两个所述非弯折边框区之间的弯折边框区。
  16. 根据权利要求15所述的显示面板，其中，所述弯折显示区与所述弯折边框区相互邻接且位于同一矩形区域中。
  17. 根据权利要求12所述的显示面板，其中，至少一条所述驱动走线包括驱动连接线和驱动输出线；所述驱动连接线的第一端与对应的所述栅驱动单元连接；所述驱动连接线的第二端与所述驱动输出线的一端连接；所述驱动连接线位于所述第一边框区；所述驱动输出线位于所述显示区。
  18. 根据权利要求17所述的显示面板，其中，至少一条所述驱动连接线位于所述非弯折边框区和/或所述弯折边框区中；至少一条所述驱动输出线位于所述弯折显示区中。
  19. 根据权利要求17所述的显示面板，其中，所述驱动连接线包括依次连接的第一驱动连接部、第二驱动连接部以及第三驱动连接部；所述第一驱动连接部平行于所述第三驱动连接部；所述第二驱动连接部与所述第一驱动连接部和所述第三驱动连接部中的至少一个相交。
  20. 一种显示装置，其包括如权利要求1所述的显示面板。
PCT/CN2021/077817 2021-01-28 2021-02-25 显示面板及显示装置 WO2022160399A1 (zh)

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