WO2019127378A1 - 柔性显示屏及柔性设备 - Google Patents

柔性显示屏及柔性设备 Download PDF

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Publication number
WO2019127378A1
WO2019127378A1 PCT/CN2017/119875 CN2017119875W WO2019127378A1 WO 2019127378 A1 WO2019127378 A1 WO 2019127378A1 CN 2017119875 W CN2017119875 W CN 2017119875W WO 2019127378 A1 WO2019127378 A1 WO 2019127378A1
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WO
WIPO (PCT)
Prior art keywords
wire
holes
flexible display
hole
display screen
Prior art date
Application number
PCT/CN2017/119875
Other languages
English (en)
French (fr)
Inventor
张祖强
邱昌明
王雨宁
Original Assignee
深圳市柔宇科技有限公司
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.)
Filing date
Publication date
Application filed by 深圳市柔宇科技有限公司 filed Critical 深圳市柔宇科技有限公司
Priority to CN201780097407.2A priority Critical patent/CN111433834A/zh
Priority to JP2020536049A priority patent/JP2021508852A/ja
Priority to PCT/CN2017/119875 priority patent/WO2019127378A1/zh
Priority to EP17935929.4A priority patent/EP3734578A4/en
Priority to KR1020207021721A priority patent/KR20200100820A/ko
Priority to TW107147569A priority patent/TW201931339A/zh
Publication of WO2019127378A1 publication Critical patent/WO2019127378A1/zh
Priority to US16/914,838 priority patent/US11127669B2/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
    • H01L23/488—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of soldered or bonded constructions
    • H01L23/498—Leads, i.e. metallisations or lead-frames on insulating substrates, e.g. chip carriers
    • H01L23/49838—Geometry or layout
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G06F1/1652—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being flexible, e.g. mimicking a sheet of paper, or rollable
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
    • H01L23/488—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of soldered or bonded constructions
    • H01L23/498—Leads, i.e. metallisations or lead-frames on insulating substrates, e.g. chip carriers
    • H01L23/4985—Flexible insulating substrates
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04102—Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper

Definitions

  • the present invention relates to the field of flexible display technologies, and in particular, to a flexible display screen and a flexible device.
  • the flexible display screen Due to the advantages of light weight, small size, low power consumption and deformable bending, the flexible display screen is increasingly favored by users.
  • the existing flexible display also has a problem: the flexible display screen is bent a plurality of times during the bending process, and if the strength of the wire is insufficient, the wire is liable to be damaged or the electrical connection is interrupted, thereby affecting the display operation.
  • Embodiments of the present invention provide a flexible display screen and a flexible device with high stability.
  • the flexible display screen of the present invention comprises: a bending zone located on the flexible display screen, the bending zone comprises at least one layer of a routing layer, and the wiring layer comprises a plurality of spaced layers Wires, each of which includes at least two current paths for transmitting the same current signal.
  • the flexible device to which the present invention relates includes a flexible display screen.
  • FIG. 1 is a schematic plan view of a flexible display screen provided by the present invention.
  • FIG. 2 is a schematic view showing a state in which the flexible display screen shown in FIG. 1 is bent.
  • FIG. 3 is a partial plan view of the flexible display screen of FIG. 1.
  • FIG. 4 is a schematic plan view showing a first embodiment of a wire of the flexible display screen shown in FIG. 1.
  • FIG. 5 is a schematic diagram showing a current path of the current path after the wire shown in FIG. 4 is broken.
  • Fig. 6 is a schematic view showing the wire of Fig. 4 provided with a third through hole group.
  • Fig. 7 is a schematic view showing a direction of current flow after the wire shown in Fig. 6 is broken.
  • FIG. 8 is a schematic view of a second embodiment of the wire of the flexible display screen of FIG. 1, wherein the wires shown in the first embodiment of FIG. 4 differ in the shape of the first through hole group and the second through hole group.
  • FIG. 9 is a schematic view of a third embodiment of the wire of the flexible display screen of FIG. 1, wherein the wires shown in the first embodiment of FIG. 4 differ in the shape of the first through hole group and the second through hole group.
  • FIG. 10 is a schematic diagram of Embodiment 4 of the wire of the flexible display screen shown in FIG. 1.
  • FIG. 10 is a schematic diagram of Embodiment 4 of the wire of the flexible display screen shown in FIG. 1.
  • 11-12 are schematic views of the current path after the breakage occurs on the wire shown in FIG.
  • FIG. 13 is a schematic diagram showing the connection of the first through hole group and the second through hole group of the wire of FIG. 10.
  • Fig. 14 is a view showing a current path after breakage on the wire shown in Fig. 13.
  • Embodiment 5 is a schematic view of Embodiment 5 of the wire of the flexible display screen shown in FIG. 1.
  • Figure 16 is a schematic view showing the sixth embodiment of the wire of the flexible display screen shown in Figure 1.
  • Embodiments of the present invention provide a flexible display screen for use on a flexible device, such as a flexible terminal, a flexible tablet computer, a wearable device having a display function, and the like.
  • the flexible display screen 100 includes a display area 10 and a non-display area 20 at the periphery of the display area 10, and a bending area 30 located in the non-display area of the flexible display screen 100.
  • the bending zone 30 includes at least one wiring layer (not labeled), and the wiring layer includes a plurality of spaced-apart wires. Each of the wires includes at least two current paths for transmitting the same current signal through the wires.
  • the non-display area 20 is mainly used to set various main lines, a wiring layer, and a driving device such as an IC to drive display of the display area.
  • the non-display area 20 further includes a substrate, an insulating layer, and a passivation layer which are sequentially stacked.
  • the substrate is used to carry and support components.
  • the insulating layer is used to insulate the wiring layer.
  • the passivation layer is formed on the surface of the trace layer, and the passivation layer can prevent the damage of the trace layer by external factors such as water vapor and oxygen, and protect the trace layer.
  • the data lines, the scan lines, and the like in the flexible display screen 100 are concentrated in the non-display area 20, and are electrically connected to the IC or the like through the wires of the wiring layer.
  • the shape of display area 10 and the arrangement of non-display area 20 are not limited to the exemplary flexible display screen 100 illustrated in FIG.
  • the shape of the display area 10 may also be a polygon, a circle or an ellipse or the like. The specific settings are based on actual conditions.
  • the present invention can effectively avoid the phenomenon that the flexible display screen 100 is damaged due to a large bending stress when bending, thereby reducing the flexible display.
  • the probability of a wire failure in the screen 100 or a broken electrical connection of the wire This can significantly improve the stability of the flexible display 100, which in turn increases the useful life of the flexible display 100.
  • the at least two current paths are through a through-hole group type layer disposed on the wire, and specifically refer to the following embodiment.
  • the trace layer is a layer
  • the through hole group includes a first pass disposed on each of the wires 21 of the trace layer and arranged in parallel at intervals.
  • the first through hole group A includes a plurality of first through holes 211 arranged at intervals
  • the second through hole group B includes a plurality of second through holes 212 arranged at intervals.
  • the current path is formed by a plurality of the first through holes 211 and a plurality of regions other than the second through holes 212.
  • the interval between the plurality of first through holes 211, the interval between the plurality of second through holes 212, and the current path between the first through holes 211 and the second through holes 212 are included.
  • the first through holes 211 of the first through hole group A and the second through holes 212 of the second through hole group B are all arranged in parallel to the extending direction of the wires 21.
  • a second through hole 212 is correspondingly provided with respect to the gap between each two adjacent first through holes 211, and the second through hole 212 opposite to the gap is
  • the orthographic projection of the first via group A covers the gap.
  • the first through hole 211 and the second through hole may be disposed in a wrong position, or may be disposed in one-to-one correspondence.
  • the portion of the wire 21 that bypasses the first through hole 211 can serve as a current path.
  • the winding of the wire 21 around the second through hole 212 can also serve as a current path.
  • the portion of the wire 21 that bypasses the first through hole 211 and the second through hole 212 to the wire may also be a current path. It will be understood that as long as current can flow from the end of the incoming wire 21 and out from the other end of the wire 21, it can be used as a current path.
  • the first through hole 211 and the second through hole 212 are circular holes.
  • a plurality of the first through holes 211 are arranged in a straight line, and each of the second through holes 212 is opposite to a gap S between each two adjacent first through holes 211.
  • the gap S is as shown in FIG.
  • the shortest distance between two adjacent first through holes 211, and the orthographic projection of the second through holes 212 in the first through hole group A covers the gap S.
  • the broken marks 213 generally extend in a direction perpendicular to the longitudinal direction of the wires 21.
  • the break 213 may terminate in the first through hole 211 and/or the second through hole 212, thereby preventing the current path of the wire 21 from being completely broken. An open circuit has occurred.
  • current flows through the wire region between the first through hole 211 and the second through hole 212 on the wire 21 to form a current path b, so that the current path on the wire 21 continues to conduct.
  • the provision of the first through hole 211 and the second through hole 212 on the wire 21 can reduce the stress of the wire 21 not only when the wire 21 is bent, but also avoid the entire wire 21 when the wire 21 is broken. Fracture failure occurs, thereby effectively reducing the probability of failure of the wire 21 and prolonging the service life of the wire 21.
  • the shape of the plurality of the first through holes 211 and the plurality of the second through holes 212 may include two or more of a circular shape, a polygonal shape, and an elliptical shape. It is set according to the actual situation.
  • the wire 21 includes a third through hole group C arranged side by side with the second through hole group B, and the third through hole group C includes a plurality of parallel lines
  • a third through hole 214 is arranged in the direction in which the wire extends. Specifically, the third through hole 214 is opposite to the gap between each of the two adjacent first through holes 211 in a direction perpendicular to the extending direction of the wire 21, and the third through hole 214 and or each of the two The gap between adjacent second through holes 212 is opposite.
  • the current path is formed by a plurality of the first through holes 211 , the plurality of the second through holes 212 , and an outer region of the plurality of the third through holes 214 .
  • the third through holes 214 are circular holes, each third through hole 214 is opposite to the gap of each two adjacent second through holes 212, and the third through hole 214 is in the second pass.
  • the orthographic projection of the hole group B covers the gap. It will be understood that the arrangement of the third through holes 214 is not limited to the exemplary position given in FIG. When at any position on the wire 21, and along a direction perpendicular to the direction in which the wire 21 extends, the section includes at least one first through hole 211, second through hole 212 or third through hole 214.
  • the second current path achieves current conduction.
  • the break 213 terminated in the third through hole 214 continues to extend along the other side, and the break 213 terminates in the second through hole 212, so that the current The path b also opens.
  • the wire 21 also has an unbroken portion, current is conducted to conduct current through the current path c. Therefore, by providing the third through hole group C on the wire 21, the current path is further increased for each of the wires 21 when the first through hole group A and the second through hole group B are disposed.
  • the provision of the third through hole 214 on the wire 21 can further prevent the entire wire 21 from being broken and failing when the wire 21 is broken, thereby further reducing the probability of failure of the wire 21, thereby extending the service life of the wire 21.
  • the wire 21 may further include a plurality of through hole groups, but in order to ensure electrical connection of the wires 21, the size of the through holes of each of the through hole groups on the wire 21 needs to be relatively reduced. It is set according to the actual situation.
  • the second embodiment of the present application is different from the first embodiment.
  • the first through hole 211 and the second through hole 212 are polygonal holes.
  • the first through hole 211 and the second through hole 212 are rectangular holes.
  • the oblong hole has a long side parallel to the direction in which the wire 21 extends and a short side perpendicular to the direction in which the wire 21 extends.
  • a third through hole group having a rectangular shape is disposed on the wire 21, and the third through hole group includes a plurality of third through holes arranged in a direction parallel to the extending direction of the wire. In this way, the probability of failure of the wire 21 can be further reduced, thereby extending the service life of the wire 21.
  • the third embodiment of the present application differs from the first embodiment in that, as shown in FIG. 9, the first through hole 211 and the second through hole 212 are elliptical holes.
  • the elliptical hole has a major axis parallel to the direction in which the wire 21 extends and a minor axis perpendicular to the direction in which the wire 21 extends.
  • the wire 21 of the elliptical edge has a certain angle with the direction of the bending, so that the wire 21 portion of the elliptical edge can significantly reduce the stress on the wire 21 and prevent the wire 21 from failing. .
  • the probability of failure of the wire 21 can be further reduced, thereby prolonging the service life of the wire 21.
  • FIG. 10 is a schematic diagram of Embodiment 4 of the wire of the flexible display screen of FIG.
  • the fourth embodiment differs from the first embodiment in that the wiring layer includes a first wiring layer (not shown) and a second wiring layer (not shown) which are disposed in a laminated insulation.
  • the wire layer and the second wiring layer are electrode layers including electrode wires.
  • the first wiring layer includes a plurality of spaced-apart first wires 22, and the second wiring layer includes a plurality of second wires 23 arranged at intervals, the first wires 22 and the second wires 23
  • a specific connection may form a convergence end at an end portion of the display area 20 extending, and a plurality of spaced-apart guiding bodies 215 are connected between the first wire 22 and the second wire 23 to form a plurality of current paths.
  • the first wire 22 and the second wire 23 may be electrode wires, and may also include other signal wires.
  • a plurality of current paths on the first wire 22 and the second wire 23 and the guiding body 215 are used to transmit a current signal transmitted by the collecting end.
  • first wire 22 and the second wire conductor 215 plus the second wire 23 can also serve as a current path.
  • first wire 22 and any of the plurality of conductors 215 plus the second wire 23 can also serve as a current path.
  • a dielectric layer is disposed between the first wiring layer and the second wiring layer, and the guiding body 215 is disposed on the dielectric layer and connects the first wire 22 and the second wire 23.
  • the first wire 22 and the second wire 23 are disposed opposite to each other in parallel. In this embodiment, the front projection of the first wire 22 and the second wire 23 completely overlap.
  • the current path a is on the first wire 22, and when the flexible display screen 100 is bent to break the first wire 22, the current path a on the first wire 22 is broken.
  • the second wire 23 does not generate the break 213, it can serve as a current path, so that current is conducted through the second wire 23.
  • the current path a is on the second wire 23, and when the flexible display screen 100 is bent to break the second wire 23, the current path a on the second wire 23 is broken. This allows current to be conducted through the first conductor 22.
  • the current path can be increased to avoid the occurrence of the breakage 213 when the first wire 22 or the second wire 23 is generated, so that the display is not caused by the breakage of only one wire.
  • the screen 100 fails, thereby effectively reducing the probability of wire failure and extending the service life of the wire.
  • the first wire 22 and the second wire 23 are compared to one wire to increase the wire resistance to bending stress.
  • the first wire 22 and the second wire 23 are simultaneously broken, and the break 213 is located between the different guiding bodies 215.
  • the break 213 extends along the direction perpendicular to the extension of the wire, and the first wire 22 and the second wire 23 are respectively disconnected.
  • both the first wire 22 and the second wire 23 are broken, that is, regardless of the first wire 22 Or the current path a of the second wire 23 will be broken.
  • the guiding body 215 is disposed between the first wiring layer and the second wiring layer, the current can be turned on through the first wire 22, the second wire 23, and the guiding body 215, that is, the current path b is formed. .
  • the curve conduction is not limited to the exemplary current path b given in FIG. Therefore, by providing the first wiring layer and the second wiring layer in the wiring layer, and providing a plurality of guiding bodies 215 between the first wiring layer and the second wiring layer, the current path is greatly increased. The probability of wire failure is significantly reduced, thereby extending the life of the flexible display 100.
  • the first wire 22 and/or the second wire 23 are provided with a first through hole group A and a second through hole group B which are arranged side by side at intervals, the first through hole
  • the group A includes a plurality of first through holes 211 arranged at intervals
  • the second through hole group B includes a plurality of second through holes 212 arranged at intervals; a plurality of the first through holes 211 and a plurality of the plurality
  • the second through holes 212 are all arranged in a direction parallel to the extending direction of the first wire 22, and a gap between each of the two adjacent first through holes 211 in a direction perpendicular to the extending direction of the first wire 22
  • a second through hole 212 is oppositely disposed, and an orthographic projection of the second through hole 212 opposite to the gap in the first through hole group A covers the gap.
  • the first through hole 211 and the second through hole 212 are both circular holes.
  • the plurality of first through holes 211 are arranged in a line in a straight line.
  • Each of the second through holes 212 is opposed to the gap of each of the two first through holes 211, and the orthographic projection of the second through holes 212 at the first through hole group A covers the gap.
  • the arrangement of the first through holes 211 is not limited to the exemplary first wire 22 and second wire 23 given in FIG.
  • the shape of the plurality of the first through holes 211 and the plurality of the second through holes 212 may include two or more of a circular shape, a polygonal shape, and an elliptical shape. It is set according to the actual situation.
  • the first wire 22 Since the first wire 22 is not completely broken, current is conducted through the current path b.
  • each of the first wires 22 further increases a current path for transmitting the same current signal. Therefore, the provision of the first through hole 211 and the second through hole 212 on the first wire 22 can not only reduce the bending stress, but also prevent the first wire 22 from being broken when the first wire 22 is cracked. This further reduces the probability of failure of the first wire 22, thereby extending the useful life of the first wire 22.
  • the first through hole group A and the second through hole group B may also be disposed on the second wire 23 or simultaneously on each of the first wire 22 and the second wire 23.
  • first wire 22 and/or the second wire 23 are provided with a third through hole group (not shown) arranged in parallel with the second through hole group B, and the third through hole
  • the set includes a plurality of third through holes (not shown) arranged in a direction parallel to the direction in which the wires are shown. Specifically, in a direction perpendicular to the extending direction of the wire 21, the third through hole is opposite to the gap S between each of the two first through holes 211, or between each of the two second through holes 212 The gap S is relative.
  • the current path is formed by a plurality of the first through holes 211, the plurality of the second through holes 212, and an outer region between the plurality of the third through holes.
  • each of the first wires 22 is further in comparison with the first through hole group A and the second through hole group B. increase. Therefore, the provision of the third through hole on the first wire 22 can further prevent the first wire 22 from being broken when the first wire 22 is broken, and further reduce the probability of failure of the first wire 22, thereby further reducing the probability of failure of the first wire 22, thereby Extend the life of the wire.
  • the third set of through holes may also be disposed on the second wire 23 or simultaneously on each of the first wire 22 and the second wire 23.
  • the fifth embodiment of the present application differs from the fourth embodiment in that, as shown in FIG. 15, the first wire 22 and the second wire 23 extend in a curved shape in a longitudinal direction.
  • the guiding body 215 is connected to a bend of the first wire 22 and the second wire 23.
  • the current path is greatly increased, and the probability of wire failure is remarkably reduced.
  • the first wire 22 and the second wire 23 extend in a curved line along the extending direction of the wire, the first wire 22 and the second wire 23 have a certain angle with respect to the bending direction, which can be significantly reduced.
  • the stress on the first wire 22 and the second wire 23 prevents the first wire 22 and the second wire 23 from failing.
  • the first wire 22 and the second wire 23 extend in a wave shape along the length direction.
  • the crests and troughs of the first wire 22 and the second wire 23 are opposed to each other.
  • the illustrated conductor 215 is coupled to the valleys of the first conductor 22 and the peak position of the second conductor 23. Therefore, by providing the guiding body 215 on the undulating first wire 22 and the second wire 23, the current path is greatly increased, and the probability of wire failure is remarkably reduced.
  • the sixth embodiment of the present application is different from the fourth embodiment in that: the first wire 22 and the second wire 23 are provided with strip-shaped through holes 216, and the strip-shaped through holes 216 are parallel to the first wire.
  • the extending direction extends and is disposed adjacent to the guiding body 215. specific.
  • the breaks of the first wire 22 and the second wire 23 are terminated in the strip-shaped through holes 216, and the current path a is broken. Since the first wire 22 and the second wire 23 are not completely broken, the second wire 22 has a second current path for current conduction. Therefore, the provision of the strip-shaped through holes 216 on the first wire 22 and the second wire 23 can prevent the entire first wire 22 and the second wire 23 from being broken when the first wire 22 and the second wire 23 are broken. Failure, so that the probability of failure of the first wire 22 and the second wire 23 can be effectively reduced, thereby extending the service life of the wire. In addition, the first wire 22 and the second wire 23 are compared to one wire to increase the wire resistance to bending stress.
  • the present invention provides a flexible device having the flexible display screen 100.
  • the flexible device may be a touch display, a touch terminal, an in-vehicle device, a network television, a wearable device, or the like.

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  • Condensed Matter Physics & Semiconductors (AREA)
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Abstract

一种柔性显示屏（100）及柔性设备，柔性显示屏（100）包括：位于柔性显示屏（100）的弯折区（30），弯折区（30）包括至少一层走线层，走线层包括多条间隔排列的导线（21），每一导线（21）包括至少两条电流通路（a、b），用于传递同一电流信号。由于导线（21）存在至少两条电流通路（a、b），使得导线（21）在弯折过程中损坏时能够继续提供电流，因此，柔性显示屏（100）稳定性强，使用寿命长。

Description

柔性显示屏及柔性设备 技术领域
本发明涉及柔性显示技术领域，特别涉及一种柔性显示屏及柔性设备。
背景技术
由于柔性显示屏具有重量轻、体积小、功耗低及可变形弯曲等诸多优点，使得柔性显示屏越来越得到用户的青睐。然而，现有的柔性显示屏也存在问题：柔性显示屏在弯折过程中导线会经过多次弯折，如果导线强度不够，导线就容易发生损坏或者电连接中断，进而影响显示屏工作。
发明内容
本发明实施例提供一种稳定性能高的柔性显示屏及柔性设备。
本发明涉及的所述一种柔性显示屏，其包括：位于所述柔性显示屏的的弯折区，所述弯折区包括至少一层走线层，所述走线层包括多条间隔排列的导线，每一所述导线包括至少两条电流通路，用于传递同一电流信号。
本发明涉及的柔性设备包括柔性显示屏。
本实施例中，通过在柔性显示屏的走线层内设置至少两条电流通路，可以有效地避免柔性显示屏弯折时由于受到较大的拉伸应力而发生导线失效现象，从而降低柔性显示屏中导线失效或者导线电连接中断的概率。这样可以显著地提高柔性显示屏的稳定性，从而提高柔性显示屏的使用寿命。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明提供的柔性显示屏的平面示意图。
图2是图1所示的柔性显示屏弯曲时的状态示意图。
图3是图1的柔性显示屏的部分结构平面示意图。
图4为图1所示的柔性显示屏的导线的实施例一的平面结构示意图。
图5为图4所示的导线发生断裂后的电流通路的一种走向示意图。
图6是图4的导线设有第三通孔组的示意图。
图7是图6所示的导线发生断裂后的电流通路的一种走向示意图。
图8为图1所示的柔性显示屏的导线的实施例二的示意图，其中与图4中实施例一所示的导线不同在于第一通孔组和第二通孔组的形状。
图9为图1所示的柔性显示屏的导线的实施例三的示意图，其中与图4中实施例一所示的导线不同在于第一通孔组和第二通孔组的形状。
图10为图1所示的柔性显示屏的导线的实施例四的示意图。
图11-12为图10所示的导线上发生断裂后电流通路的示意图。
图13为图10的导线的第一通孔组及第二通孔组的连接示意图。
图14为图13所示的导线上发生断裂后电流通路的示意图。
图15为图1所示的柔性显示屏的导线的实施例五的示意图。
图16为图1所示的柔性显示屏的导线的实施例六的示意图。
具体实施方式
下面将结合本发明实施方式中的附图，对本发明实施方式中的技术方案进行清楚、完整地描述。
本发明实施方式提供一种柔性显示屏用于柔性设备上，如柔性终端，柔性平板电脑，具备显示功能的穿戴设备等。
请参阅图1与图2，柔性显示屏100包括显示区10和位于显示区10周缘的非显示区20，以及位于所述柔性显示屏100的非显示区的弯折区30。所述弯折区30包括至少一层走线层(图未标)，所述走线层包括多条间隔排列的导线。每一所述导线包括至少两条电流通路，用于传递通过该导线的同一电流信号。
具体的，所述非显示区20主要用于设置各种主线、走线层和设置IC等驱动装置，以驱动显示区显示。此外，非显示区20还包括依次层叠设置的基板、 绝缘层及钝化层。所述基板用于承载及支撑元器件。绝缘层用以绝缘设置走线层。所述钝化层形成于走线层的表面，所述钝化层可以避免水蒸气，氧气等外界因素对走线层的损坏，起到保护走线层的作用。本实施例中，柔性显示屏100内的数据线和扫描线等汇聚在所述非显示区20内，并通过走线层的导线与IC等装置电连接。可以理解的是，显示区10的形状及非显示区20的设置不受限于图1所给出的示例性的柔性显示屏100。显示区10的形状也可为多边形，圆形或者椭圆形等。具体的根据实际情况设置。
本申请通过在柔性显示屏100的走线层内设置至少两条电流通路，可以有效地避免柔性显示屏100弯折时由于受到较大的弯折应力而导致导线损坏的现象，从而降低柔性显示屏100中导线失效或者导线电连接中断的概率。这样可以显著地提高柔性显示屏100的稳定性，继而提高柔性显示屏100的使用寿命。本实施例中，所述至少两条电流通路是通过设于导线上的通孔组型号层，及具体参见一下实施例。
请参阅图3和图4，本发明实施例一，所述走线层为一层，所述通孔组包括设于走线层的每一导线21上的且间隔并列排布的第一通孔组A和第二通孔组B。所述第一通孔组A包括多个间隔排布的第一通孔211，所述第二通孔组B包括多个间隔排布的第二通孔212。所述电流通路通过多个所述第一通孔211和多个所述第二通孔212以外的区域形成。其中包括多个第一通孔211之间的间隔、多个第二通孔212之间的间隔，以及第一通孔211与第二通孔212之间的间隔的电流通路。所述第一通孔组A的第一通孔211和所述第二通孔组B的第二通孔212均沿平行于导线21延伸方向排布。在垂直于导线21延伸方上，相对于每两个相邻第一通孔211之间的间隙，对应地设有一个第二通孔212，并且与所述间隙相对的第二通孔212在第一通孔组A的正投影覆盖所述间隙。在其它实施例中，所述第一通孔211与所述第二通孔可以错位设置，也可以一一对应设置。
具体的，所述导线21上绕过第一通孔211的导线部分可以作为一条电流通路。所述导线21上绕过第二通孔212也可以作为一条电流通路。此外，所述导线21上绕过第一通孔211和第二通孔212的到导线部分也可以为一条电流通路。可以理解的是，只要可以使电流从进入导线21一端开始，并从导线 21另一端流出即可作为一条电流通路。
如图4所示，所述第一通孔211和第二通孔212为圆形孔。多个所述第一通孔211间隔呈直线排布，每个第二通孔212与每两个相邻第一通孔211之间的间隙S相对，这里的间隙S如图4所示，为两个相邻第一通孔211之间的最短距离，且第二通孔212在第一通孔组A的正投影覆盖所述间隙S。如图4所示，当柔性显示屏100处于未弯折状态时，电流沿电阻值最小的电流通路a实现导通。然而，如图5所示，当柔性显示屏100弯折使导线21的两侧边同时发生断裂形成多道断痕213时，断痕213通常会沿着垂直于导线21长度方向的方向延伸。然而，由于第一通孔211和\或第二通孔212的存在，断痕213会终止于第一通孔211和\或第二通孔212，从而避免导线21因完全断裂而导致电流通路发生断路。当导线21并未完全断裂时，电流通过导线21上第一通孔211和第二通孔212之间的导线区域形成电流通路b，使得导线21上的电流通路继续导通。因此，在导线21上设置第一通孔211和第二通孔212不但可以在导线21弯折时减小导线21的应力，而且可以避免在导线21产生断痕213时不至于整条导线21发生断裂失效，从而有效地降低导线21失效的概率，延长导线21的使用寿命。在其他实施例里，多个所述第一通孔211和多个所述第二通孔212的形状可以包括圆形、多边形、椭圆形中的两种或者多种。具体根据实际情况设置。
进一步的，如图6所示，所述导线21上包括与所述第二通孔组B间隔并列排布的第三通孔组C，所述第三通孔组C包括多个沿平行于所示导线延伸方向排布的第三通孔214。具体的，在垂直于导线21延伸方向上所述第三通孔214与所述每两个相邻第一通孔211之间的间隙相对，所述第三通孔214与或者与每两个相邻第二通孔212之间的间隙相对。所述电流通路通过多个所述第一通孔211、多个所述第二通孔212及多个所述第三通孔214的以外区域形成。其中，多个第一通孔211之间、多个第二通孔212之间，多个所述第三通孔214之间，第一通孔211与第二通孔212之间及第二通孔212与第三通孔214之间间隔形成电流通路。本实施例中，所述第三通孔214为圆形孔，每个第三通孔214与每两个相邻的第二通孔212的间隙相对，且第三通孔214在第二通孔组B的正投影覆盖所述间隙。可以理解的是，第三通孔214的排布不受限 于图6所给出的示例性的位置。当在导线21上的任意一个位置上，且沿着垂直于导线21延伸方向作截面，所述截面包括至少存在一个第一通孔211、第二通孔212或者第三通孔214。
如图6所示，当柔性显示屏100处于未弯折状态时，电流沿电阻值最小的电流通路a实现导通。然而，如图7所示，当柔性显示屏100弯折使导线21的两侧边同时发生断裂形成多道断痕213时，断痕213沿着垂直于导线21长度方向延伸。由于第一通孔211和\或第二通孔212的存在，使得断痕213终止于第一通孔211和\或第二通孔212内。此外，由于电流通路a所在的导线部分产生断痕213，使得电流通路a发生断路。这样，在导线21未断裂的部分，第二条电流通路实现电流导通。进一步的，当柔性显示屏100弯折应力更大时，终止于第三通孔214的断痕213继续沿着另一侧延伸断裂，且断痕213终止于第二通孔212，这样，电流通路b也发生断路。然而，由于导线21还存在未断裂部分，使得电流通过电流通路c实现电流导通。因此，通过在导线21上设置第三通孔组C，使得每一条所述导线21在相较于设置第一通孔组A与第二通孔组B时，电流通路进一步的增加。此外，在导线21上设置第三通孔214可以进一步地避免在导线21发生断痕213时不至于整条导线21发生断裂失效，进一步降低导线21失效的概率，从而延长导线21的使用寿命。在其他实施方式中，导线21上还可以包括多个通孔组，但为了保证导线21的电连接，导线21上的每一个通孔组的通孔的大小需要相对减小。具体根据实际情况设置。
本申请的实施例二，与实施例一不同的是：如图8所示，所述第一通孔211和第二通孔212为多边形孔。本实施例中，所述第一通孔211和第二通孔212为长方形孔。所述长方形孔具有平行于导线21延伸方向的长边以及垂直于导线21延伸方向的短边。这样，通过减小长方形孔的短边长度，既可以实现如实施例一描述的降低导线21失效的概率，延长导线21的使用寿命，又可以保证导线21的牢固度。进一步地，在导线21上设置形状为长方形的第三通孔组，所述第三通孔组包括多个沿平行于所示导线延伸方向排布的第三通孔。这样，可以进一步降低导线21失效的概率，从而延长导线21的使用寿命。
本申请的实施例三，与实施例一不同的是：如图9所示，所述第一通孔 211和第二通孔212为椭圆形孔。所述椭圆形孔具有平行于导线21延伸方向的长轴以及垂直于导线21延伸方向的短轴。通过增加长轴的长度以及减小短轴的长度，既可以实现如第一种实施方式描述的降低导线21失效的概率，延长导线21的使用寿命，又可以保证导线21的牢固度。此外，椭圆形孔由于边缘为曲线形状，使得椭圆形边缘的导线21与弯折的方向存在一定的角度，这样椭圆形边缘的导线21部分可以显著地降低导线21上的应力，避免导线21失效。进一步的，在导线21上设置形状为椭圆形的第三通孔组，可以进一步降低导线21失效的概率，从而延长导线21的使用寿命。
请参阅图10，图10是图1所示柔性显示屏的导线的实施例四的示意图。实施例四与实施例一不同的是，所述走线层包括层叠绝缘设置的第一走线层(图未示)及第二走线层(图未示)本实施例中，第一走线层及第二走线层为电极层，其包括电极线。所述第一走线层包括多条间隔排布的第一导线22，所述第二走线层包括多条间隔排布的第二导线23，所述第一导线22与第二导线23一一对应，具体连接可以在显示区20伸出的端部形成汇聚端，并且所述第一导线22和第二导线23之间连接有多个间隔设置的导接体215以形成多个电流通路。第一导线22和第二导线23可以是电极线，也可以包括其他信号走线。此外，第一导线22和第二导线23及导接体215上的多条电流通路用于传递汇聚端传递的电流信号。比如，第一导线22和第二条导线导接体215加上第二导线23也可以作为一条电流通路。此外，第一导线22和任何多个导接体215加上第二导线23也可以作为一个电流通路。所述第一走线层与第二走线层之间设有一层介电层，所述导接体215设于所述介电层，并连接所述第一导线22和第二导线23。所述第一导线22与第二导线23相互平行相对设置，本实施例中，第一导线22的正投影和第二导线23完全重叠。
如图10所示，当柔性显示屏100处于未弯折状态时，电流沿电阻值最小的电流通路a实现导通。第一种情况：如图11所示，电流通路a在第一导线22上，当柔性23显示屏100弯折使第一导线22发生断裂时，第一导线22上的电流通路a发生断路，这样，由于第二导线23并未产生断痕213就可以作为电流通路，使得电流通过第二导线23实现导通。或者，电流通路a在第二导线23上，当柔性显示屏100弯折使第二导线23发生断裂时，第二导线23 上的电流通路a发生断路。这样电流可以通过第一导线22实现导通。通过在走线层设置第一走线层及第二走线层既可以增加电流通路，避免在第一导线22或者第二导线23产生断痕213时不至于因为只有一条导线发生断裂而使得显示屏100失效，从而有效地降低导线失效的概率，延长导线的使用寿命。此外，第一导线22与第二导线23相较一条导线可以增加导线抵抗弯曲应力。
第二种情况：如图12所示，第一导线22与第二导线23同时发生断裂，且断痕213位于不同导接体215之间。断痕213沿着垂直于导线延伸方向延伸，并将第一导线22及第二导线23分别断开，这时，第一导线22和第二导线23均发生断路，即不管位于第一导线22或者第二导线23的电流通路a都将发生断路。然而，由于第一走线层与第二走线层之间设有导接体215，使得电流可以通过第一导线22、第二导线23及导接体215曲线导通，即形成电流通路b。可以理解的是，曲线导通不受限于图12所给出的示例性的电流通路b。因此，通过在走线层设置第一走线层及第二走线层，并在第一走线层与第二走线层之间设置多个导接体215，使得电流通路大量的增加，显著地降低导线失效的概率，从而延长柔性显示屏100的寿命。
进一步的，如图13所示，所述第一导线22和\或第二导线23上设有间隔并列排布的第一通孔组A和第二通孔组B，所述第一通孔组A包括多个间隔排布的第一通孔211，所述第二通孔组B包括多个间隔排布的第二通孔212；多个所述第一通孔211和多个所述第二通孔212均沿平行于所述第一导线22延伸方向排布，并且在垂直于所述第一导线22延伸方向上，每两个所述相邻第一通孔211之间的间隙相对设有一个所述第二通孔212，并且与所述间隙相对的所述第二通孔212在第一通孔组A的正投影覆盖所述间隙。
本实施例中，第一通孔211与第二通孔212均为圆形孔。多个第一通孔211间隔呈直线排布。每个第二通孔212与每两个第一通孔211的间隙相对，且第二通孔212在第一通孔组A的正投影覆盖所述间隙。可以理解的是，第一通孔211的排布不受限于图13所给出的示例性的第一导线22和第二导线23。在其他实施例里，多个所述第一通孔211和多个所述第二通孔212的形状可以包括圆形、多边形、椭圆形中的两种或者多种。具体根据实际情况设置。
如图13所示，当柔性显示屏100处于未弯折状态时，电流通过电流通路 a实现导通。如图14所示，当柔性显示屏100弯折使第一导线22与第二导线23同时发生断裂时候，且断痕213位于不同导接体215之间。具体的，第二导线23完全被断痕213分成两部分，而第一导线22由于存在第一通孔组A和第二通孔组B，使得第一导线22的一边缘发生断裂，断痕213沿着垂直于第一导线22延伸方向延伸，断痕213终止于第一通孔211和\或第二通孔212内，电流通路a发生断路。由于第一导线22并未完全断裂，使得电流通过电流通路b实现导通。通过在第一导线22上设置第一通孔组A和第二通孔组B，使得每一所述第一导线22进一步地增加了电流通路，用于传递同一电流信号。因此，在第一导线22上设置第一通孔211和第二通孔212不仅可以减小弯折应力，还可以避免在第一导线22发生裂痕时不至于整条第一导线22断裂失效，这样就可以进一步地降低第一导线22失效的概率，从而延长第一导线22的使用寿命。在其他实施例中，第一通孔组A以及第二通孔组B也可设置在第二导线23上或者同时设置在每一条第一导线22和第二导线23上。
进一步的，所述第一导线22和\或第二导线23上设有与所述第二通孔组B间隔并列排布的第三通孔组(图未示)，所述第三通孔组包括多个沿平行于所示导线延伸方向排布的第三通孔(图未示)。具体的，在垂直于导线21延伸方向上，所述第三通孔与每两个所述第一通孔211之间的间隙S相对，或者与每两个所述第二通孔212之间的间隙S相对。所述电流通路通过多个所述第一通孔211、多个所述第二通孔212及多个所述第三通孔之间的以外区域形成。具体的，通过在第一导线22上设置第三通孔组，使得每一所述第一导线22在相较于设置第一通孔组A与第二通孔组B时，电流通路进一步的增加。因此，在第一导线22上设置第三通孔可以进一步地避免在第一导线22产生断痕213时不至于整条第一导线22发生断裂失效，进一步降低第一导线22失效的概率，从而延长导线的使用寿命。在其他实施例中，第三通孔组也可设置在第二导线23上或者同时设置在每一条第一导线22和第二导线23上。
本申请的实施例五，与实施例四不同的是：如图15所示，所述第一导线22与所述第二导线23沿长度方向的方向呈曲线形延伸。所述导接体215连接于所述第一导线22与所述第二导线23的弯折处。如实施例四所叙述的，通过在呈曲线设置的第一导线22及第二导线23上设置导接体215，使得电流通路 大量的增加，显著地降低导线失效的概率。此外，由于所述第一导线22与所述第二导线23沿导线延伸方向呈曲线延伸，使得第一导线22与所述第二导线23与弯折的方向存在一定的角度，这样可以显著降低第一导线22与所述第二导线23上的应力，避免第一导线22与所述第二导线23失效。在其他实施例中，所述第一导线22与所述第二导线23沿长度方向呈波浪形延伸。第一导线22与第二导线23的波峰与波谷相互对立设置。所示导接体215连接于第一导线22的波谷以及第二导线23的波峰位置。因此，通过在呈波浪形的第一导线22及第二导线23上设置导接体215，使得电流通路大量的增加，显著地降低导线失效的概率。
本申请的实施例六，与实施例四不同的是：所述第一导线22与所述第二导线23上设有条形通孔216，所述条形通孔216沿平行于第一导线的延伸方向延伸且与所述导接体215相邻设置。具体的。当柔性显示屏100处于未弯折状态时，电流通过电流通路a实现导通。然而当柔性显示屏100弯折使第一导线22与第二导线23同时发生断裂时，第一导线22与第二导线23产生断痕，且位于不同导接体215之间。具体的，由于第一导线22和第二导线23存在条形通孔216，使得第一导线22和第二导线23的断痕终止于条形通孔216内，同时电流通路a发生断路。由于第一导线22和第二导线23并未完全断裂，使得第一导线22存在第二条电流通路实现电流导通。因此，在第一导线22和第二导线23上设置条形通孔216可以避免在第一导线22和第二导线23发生断痕时不至于整条第一导线22和第二导线23发生断裂失效，这样就可以有效地降低第一导线22和第二导线23失效的概率，从而延长导线的使用寿命。此外，第一导线22与第二导线23相较一条导线可以增加导线抵抗弯曲应力。
本发明提供一种具有所述柔性显示屏100的柔性设备。所述柔性设备可以是触控式显示屏、触控终端、车载设备、网络电视、可穿戴设备等。
以上所述是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也视为本发明的保护范围。

Claims (12)

  1. 一种柔性显示屏，其特征在于，包括位于所述柔性显示屏的弯折区，所述弯折区包括至少一层走线层，所述至少一层走线层包括多条间隔排列的导线，每一所述导线包括至少两条电流通路，用于传递通过所述导线的同一电流信号。
  2. 如权利要求1所述的柔性显示屏，其特征在于，所述导线包括通孔组，所述通孔组包括设于所述导线上间隔并列排布的第一通孔组和第二通孔组，所述第一通孔组包括多个间隔排布的第一通孔，所述第二通孔组包括多个间隔排布的第二通孔，所述电流通路通过多个所述第一通孔和多个所述第二通孔以外的区域形成。
  3. 如权利要求2所述的柔性显示屏，其特征在于，多个所述第一通孔和多个所述第二通孔均沿平行于所述导线延伸方向排布，并且在垂直于所述导线延伸方上，每两个相邻的所述第一通孔之间的间隙相对设有一个所述第二通孔，并且所述第二通孔在垂直于所述导线延伸方向正投影覆盖所述间隙。
  4. 如权利要求3所述的柔性显示屏，其特征在于，所述通孔组包括设于所述导线上与所述第二通孔组间隔并列排布的第三通孔组，所述第三通孔组包括多个沿平行于所述导线延伸方向间隔排布的第三通孔。
  5. 如权利要求2或者3所述的柔性显示屏，其特征在于，所述通孔组中各个通孔的形状为圆形、椭圆形、三角形或多边形中的一种或两种以上
  6. 如权利要求1所述的柔性显示屏，其特征在于，所述走线层包括层叠绝缘设置的第一走线层及第二走线层，所述第一走线层包括多条间隔排布的第一导线，所述第二走线层包括多条间隔排布的第二导线；所述第一导线与所述第二导线一一对应，并通过多个间隔设置于所述第一导线和第二导线之间的导接体连接，以形成多个所述电流通路。
  7. 如权利要求6所述的柔性显示屏，其特征在于，所述第一导线与所述第二导线在长度方向上呈曲线延伸；所述导接体连接于所述第一导线与所述第二导线交汇的弯折处。
  8. 如权利要求6所述的柔性显示屏，其特征在于，所述第一导线与所述第二导线上设有条形通孔，所述条形通孔沿第一导线延伸方向延伸且与所述导 接体相邻设置。
  9. 如权利要求6-8任一项所述的柔性显示屏，其特征在于，所述第一导线和\或第二导线上设有间隔并列排布的第一通孔组和第二通孔组，所述第一通孔组包括多个间隔排布的第一通孔，所述第二通孔组包括多个间隔排布的第二通孔；多个所述第一通孔和多个所述第二通孔均沿平行于第一导线延伸方向排布，并且在垂直于第一导线延伸方向上，每两个所述第一通孔之间的间隙相对设有一个所述第二通孔，并且与所述间隙相对的所述第二通孔在第一通孔组的正投影覆盖所述间隙。
  10. 如权利要求9所述的柔性显示屏，其特征在于，所述第一走线层与第二走线层之间设有一层介电层，所述导接体设于所述介电层内，并连接所述第一导线和第二导线。
  11. 如权利要求6-8任一项所述的柔性显示屏，其特征在于，所述第一走线层及第二走线层为电极层。
  12. 一种柔性设备，其特征在于，包括如权利要求1-10任一项所述的柔性显示屏。
PCT/CN2017/119875 2017-12-29 2017-12-29 柔性显示屏及柔性设备 WO2019127378A1 (zh)

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