WO2023000379A1 - 显示装置 - Google Patents

显示装置 Download PDF

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Publication number
WO2023000379A1
WO2023000379A1 PCT/CN2021/110175 CN2021110175W WO2023000379A1 WO 2023000379 A1 WO2023000379 A1 WO 2023000379A1 CN 2021110175 W CN2021110175 W CN 2021110175W WO 2023000379 A1 WO2023000379 A1 WO 2023000379A1
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WO
WIPO (PCT)
Prior art keywords
adhesive layer
display
display device
layer
backplane
Prior art date
Application number
PCT/CN2021/110175
Other languages
English (en)
French (fr)
Inventor
覃黎君
唐志舜
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 US17/600,058 priority Critical patent/US20240049409A1/en
Publication of WO2023000379A1 publication Critical patent/WO2023000379A1/zh

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0217—Mechanical details of casings
    • 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
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20954—Modifications to facilitate cooling, ventilating, or heating for display panels
    • H05K7/20963—Heat transfer by conduction from internal heat source to heat radiating structure
    • 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
    • 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
    • H10K59/80—Constructional details
    • H10K59/8794—Arrangements for heating and cooling
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K77/00—Constructional details of devices covered by this subclass and not covered by groups H10K10/80, H10K30/80, H10K50/80 or H10K59/80
    • H10K77/10—Substrates, e.g. flexible substrates
    • H10K77/111—Flexible substrates

Definitions

  • the present application relates to the field of display technology, and in particular to a display device.
  • the display device of the prior art includes a display area and a bending area, and the bending area mainly includes BP1 (first backplane, thickness H1), SCF (buffer heat dissipation layer, thickness H2), stiffener (adhesive layer, thickness H3), BP2 layer (second backplane, thickness H4), it is foreseeable that when the bending radius R is smaller , the smaller the frame length (L1+R) of the lower boundary area is.
  • the purpose of the present application is to provide a display device to solve the problem in the prior art that the thickness H of the module structure cannot be thinned without limit, which leads to the problem that the bending radius R cannot be reduced.
  • the present application provides a display device, including: a display panel, including a display portion, a binding portion bent to the back of the display panel, and a bending portion connecting the display portion and the binding portion; an adhesive layer, It is arranged between the display part and the binding part; and a buffer heat dissipation layer is provided on the side of the display part of the display panel facing the binding part; the buffer heat dissipation layer is on the display part
  • the projection of does not overlap with the projection of the adhesive layer on the display portion.
  • the buffer heat dissipation layer is located on a side of the adhesive layer away from the bent portion.
  • the display device further includes: a first backplane disposed between the adhesive layer and the display part; and a second backplane disposed between the adhesive layer and the binding part Between; wherein, the adhesive layer is disposed between the first backplane and the second backplane.
  • the bending radius of the bending part is r
  • the film thickness of the adhesive layer is h1
  • the film thickness of the first back plate is h2
  • the film thickness of the second back plate is h3
  • the h1+h2+h3 2r.
  • the adhesive layer includes: a first adhesive layer disposed between the display part and the binding part.
  • the adhesive layer further includes: a second adhesive layer disposed between the first adhesive layer and the display part; and an intermediate layer disposed between the first adhesive layer and the second adhesive layer. Between the layers; wherein, the material of the middle layer includes one of thermoplastic polyester and foam.
  • the first backplane includes: a first base material disposed between the adhesive layer and the display part; and a first polyester layer disposed between the first base material and the display part. between departments.
  • the second backsheet includes: a second substrate disposed between the adhesive layer and the binding portion; and a second polyester layer disposed between the second substrate and the binding portion. between binding parts.
  • the display device further includes a third adhesive layer, which is provided on the bending part, part of the display part and part of the binding part.
  • the present application provides a display device.
  • the adhesive layer is provided between the display part and the binding part; the buffer heat dissipation layer is provided on a side of the display panel facing the binding part. side; the projection of the buffer heat dissipation layer on the display part does not overlap with the projection of the adhesive layer on the display part; so that the bending diameter of the display device of the present application is equal to the first backplane, the second
  • the sum of the thicknesses of the backplane and the adhesive layer, and the bending diameter of the display device of the present application is less than 0.5 mm, which is equal to the bending diameter of the first backplane, the second backplane, and the adhesive layer in the prior art.
  • the combined layer and the thickness of the buffer heat dissipation layer, the bending diameter of the display device of the present application does not need to measure the thickness of the buffer heat dissipation layer, so that the bending radius of the display device of the present application is smaller than that of the existing display device, thereby reducing
  • the frame width of the display device realizes the narrow frame effect and improves product competitiveness.
  • Figure 1 is a schematic structural view of a display device provided by the prior art
  • FIG. 2 is a schematic structural diagram of a display device provided by an embodiment of the present application.
  • Display device 100 display panel 101; adhesive layer 103;
  • the third adhesive layer 105 The third adhesive layer 105 .
  • the present application provides a display device 100 , including: a display panel 101 , a first backplane 102 , an adhesive layer 103 , a second backplane 104 , a third adhesive layer 105 and a buffer heat dissipation layer 106 .
  • the display panel 101 includes a display portion 1011 , a binding portion 1013 bent to the back of the display panel 101 , and a bending portion 1012 connecting the display portion 1011 and the binding portion 1013 .
  • the adhesive layer 103 is disposed between the display part 1011 and the binding part 1013 . Specifically, the adhesive layer 103 is disposed between the first backplane 102 and the second backplane 104 .
  • the adhesive layer 103 includes: a first adhesive layer (not shown in the figure), which is arranged between the display part and the binding part, so as to facilitate bonding with the second backplane 104
  • the second adhesive layer (not shown in the figure) is arranged between the first adhesive layer and the display part to facilitate bonding with the first backplane 102; and the middle layer (not shown in the figure) is set Between the first adhesive layer and the second adhesive layer, it mainly acts as a buffer; wherein, the material of the intermediate layer includes one of thermoplastic polyester and foam, and the first adhesive layer and the second adhesive layer
  • the above second adhesive layer can be pressure sensitive adhesive (English full name: pressure sensitive Adhesives, referred to as: PSA).
  • the adhesive layer 103 may also be a single-layer adhesive layer structure. The thickness range of the adhesive layer 103 is 50-300um.
  • the buffer heat dissipation layer 106 is disposed on the side of the display portion 1011 of the display panel 101 facing the binding portion 1013, and is located on the side of the adhesive layer 103 away from the bending portion 1012; specifically, The buffer heat dissipation layer 106 is pasted on the surface of the first backplane 102 facing the second backplane 104 .
  • the projection of the buffer heat dissipation layer 106 on the display portion 1011 does not overlap with the projection of the adhesive layer 103 on the display portion 1011 . In this embodiment, there is a gap between the projection of the buffer heat dissipation layer 106 on the display portion 1011 and the projection of the adhesive layer 103 on the display portion 1011 .
  • the buffer heat dissipation layer 106 is not disposed between the adhesive layer 103 and the first backplane 102, so the bending radius of the display device 100 of the present application is only determined by the first backplane 102, the second backplane 104 And the thickness of the adhesive layer 103 is determined without considering the thickness of the buffer heat dissipation layer 106 .
  • the thickness of the buffer heat dissipation layer 106 may be greater than, less than or equal to the thickness of the adhesive layer 103 .
  • the thickness of the buffer layer in this embodiment is smaller than the thickness of the adhesive layer 103 .
  • the material of the buffer heat dissipation layer 106 includes one or more of grid glue, foam, copper foil, PI, and graphite sheet.
  • the bending radius of the bending portion is r
  • the film thickness of the adhesive layer is h1
  • the film thickness of the first back plate is h2
  • the h1+h2+h3 ⁇ 0.5mm.
  • the first backplane 102 is arranged between the adhesive layer 103 and the display part 1011; the first backplane 102 includes: a first substrate (not shown in the figure), arranged on the adhesive between the composite layer 103 and the display portion 1011 ; and a first polyester layer (not shown in the figure), disposed between the first base material and the display portion 1011 .
  • the second backboard 104 is disposed between the adhesive layer 103 and the binding portion 1013 .
  • the second backsheet 104 includes: a second base material (not shown), disposed between the adhesive layer 103 and the binding portion 1013; and a second polyester layer (not shown), disposed between the second substrate and the binding part 1013 .
  • the width of the second backplane 104 is smaller than the width of the first backplane 102 ; the width of the second backplane 104 is larger than the width of the adhesive layer 103 .
  • the third adhesive layer 105 is disposed on the bending portion 1012 , part of the display portion 1011 and part of the binding portion 1013 .
  • the third adhesive layer 105 mainly protects the shape of the bending area and prevents the display panel from being damaged by external force.
  • the material of the third glue layer can choose UV glue.
  • the adhesive layer 103 in this application is arranged between the display portion 1011 and the binding portion 1013; One side; the projection of the buffer heat dissipation layer 106 on the display portion 1011 does not overlap with the projection of the adhesive layer 103 on the display portion 1011; so that the bending diameter of the display device 100 of the present application is equal to The sum of the thicknesses of the first backplane 102, the second backplane 104, and the adhesive layer 103, and the bending diameter of the display device 100 of the present application is less than 0.5mm, compared with the bending diameter in the prior art equal to The sum of the thicknesses of the first backplane, the second backplane, the adhesive layer, and the buffer heat dissipation layer, the bending diameter of the display device 100 of the present application does not need to measure the thickness of the buffer heat dissipation layer 106, so that the bending diameter of the display device 100 of the present application The bending radius is smaller than that of the existing display device, thereby reducing the
  • the effect of increasing the viscosity of the adhesive layer 103 can be achieved by adjusting the material of the adhesive layer 103 or increasing the thickness of the adhesive layer 103 .
  • it is necessary to keep h1+h2+h3 2r, and h1+h2+h3 ⁇ 0.5mm.

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

Abstract

一种显示装置（100），包括：显示面板（101）、粘合层（103）以及缓冲散热层（106）。粘合层（103）设于显示部（1011）与绑定部（1013）之间；缓冲散热层（106）设于显示面板（101）的显示部（1011）朝向绑定部（1013）的一侧；缓冲散热层（106）在显示部（1011）上的投影与粘合层（103）在显示部（1011）上的投影不重叠。

Description

显示装置 技术领域
本申请涉及一种显示技术领域，尤其涉及一种显示装置。
 背景技术
随着电子设备呈现逐步降低窄边框的发展趋势，目前的下边界处的柔性电路板（英文全称：Flexible Printed Circuit，简称：FPC）&GOA走线排布等制约了手机窄边框的发展。
 技术问题
现阶段市面主要通过弯折工艺将FPC&GOA走线弯折至屏体背面，如图1，现有技术的显示装置包括显示区以及弯折区，弯折区主要包括BP1（第一背板，厚度为H1）、SCF（缓冲散热层，厚度为H2）、stiffener（粘合层，厚度为H3）、BP2层（第二背板，厚度为H4），可预见的是当弯折半径R越小，则下边界区边框长度（L1+R）越小。但弯折半径R越小，要求弯折区域模组结构厚度H（2R=H=H1+H2+ H3+H4）越小，但为了满足产品所需要的材料性能，模组结构厚度H无法无限制的薄化。受此限制，市面上产品厚度H值基本维持在0.5-0.7mm水准（对应的弯折半径 R为0.25-0.35）。
因此，需要寻求一种新型的显示装置以解决上述问题。
 技术解决方案
本申请目的提供一种显示装置，以解决现有技术中模组结构厚度H无法无限制薄化，进而导致弯折半径R无法减小的问题。
本申请提供一种显示装置，包括：显示面板，包括显示部、弯折至所述显示面板背面的绑定部以及连接所述显示部以及所述绑定部的弯折部；粘合层，设于所述显示部与所述绑定部之间；以及缓冲散热层，设于所述显示面板的显示部朝向所述绑定部的一侧；所述缓冲散热层在所述显示部上的投影与所述粘合层在所述显示部上的投影不重叠。
进一步的，所述缓冲散热层位于所述粘合层远离所述弯折部的一侧。
进一步地，所述的显示装置还包括：第一背板，设于所述粘合层与所述显示部之间；以及第二背板，设于所述粘合层与所述绑定部之间；其中，所述粘合层设于所述第一背板与所述第二背板之间。
进一步的，所述弯折部的弯折半径为r，所述粘合层的膜厚为h1，所述第一背板的膜厚为h2，所述第二背板的膜厚为h3，所述h1+ h2+ h3=2r。
进一步地，所述h1+ h2+ h3＜0.5mm。
进一步地，所述粘合层包括：第一胶层，设于所述显示部与所述绑定部之间。
进一步地，所述粘合层还包括：第二胶层，设于所述第一胶层与所述显示部之间；以及中间层，设于所述第一胶层与所述第二胶层之间；其中，所述中间层的材质包括热塑性聚酯、泡棉中的一种。
进一步地，所述第一背板包括：第一基材，设于所述粘合层与所述显示部之间；以及第一聚酯层，设于所述第一基材与所述显示部之间。
进一步地，所述第二背板包括：第二基材，设于所述粘合层与所述绑定部之间；以及第二聚酯层，设于所述第二基材与所述绑定部之间。
进一步地，所述的显示装置还包括第三胶层，设于所述弯折部、部分所述显示部以及部分所述绑定部上。
 有益效果
本申请提供一种显示装置，本申请中的粘合层设于所述显示部与所述绑定部之间；缓冲散热层设于所述显示面板的显示部朝向所述绑定部的一侧；所述缓冲散热层在所述显示部上的投影与所述粘合层在所述显示部上的投影不重叠；使得本申请的显示装置的弯折直径等于第一背板、第二背板以及粘合层三者的厚度之和，且本申请的显示装置的弯折直径小于0.5mm，相较于现有技术中的弯折直径等于第一背板、第二背板、粘合层以及缓冲散热层的厚度之和，本申请的显示装置的弯折直径无需计量缓冲散热层的厚度，使得本申请的显示装置的弯折半径小于现有显示装置的弯折半径，从而降低显示装置的边框宽度，实现窄边框效果，提高产品竞争力。
 附图说明
下面结合附图，通过对本申请的具体实施方式详细描述，将使本申请的技术方案及其它有益效果显而易见。
图1为现有技术提供的显示装置的结构示意图
图2为本申请一实施例提供的显示装置的结构示意图。
显示装置100；显示面板101；粘合层103；
显示部1011；绑定部1013；弯折部1012；
第一背板102；第二背板104；缓冲散热层106；
第三胶层105。
 本发明的实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述。显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
如图2所示，本申请提供一种显示装置100，包括：显示面板101、第一背板102、粘合层103、第二背板104、第三胶层105以及缓冲散热层106。
其中，所述显示面板101包括显示部1011、弯折至所述显示面板101背面的绑定部1013、以及连接所述显示部1011和所述绑定部1013的弯折部1012。
其中，所述粘合层103设于所述显示部1011与所述绑定部1013之间。具体的，所述粘合层103设于所述第一背板102与所述第二背板104之间。
本实施例中，所述粘合层103包括：第一胶层（图未示），设于所述显示部与所述绑定部之间，便于与所述第二背板104进行粘接；第二胶层（图未示），设于所述第一胶层与所述显示部之间，便于与所述第一背板102进行粘接；以及中间层（图未示），设于所述第一胶层与所述第二胶层之间，主要起缓冲作用；其中，所述中间层的材质包括热塑性聚酯、泡棉中的一种，所述第一胶层与所述第二胶层可以为压敏胶（英文全称：pressure sensitive adhesives，简称：PSA）。在其他实施例中，所述粘合层103还可以为单层的胶层结构。所述粘合层103的厚度范围为50-300um。
所述缓冲散热层106设于所述显示面板101的显示部1011朝向所述绑定部1013的一侧，且位于所述粘合层103远离所述弯折部1012的一侧；具体的，所述缓冲散热层106贴合于所述第一背板102朝向所述第二背板104的一侧的表面上。所述缓冲散热层106在所述显示部1011上的投影与所述粘合层103在所述显示部1011上的投影不重叠。本实施例中，所述缓冲散热层106在所述显示部1011上的投影与所述粘合层103在所述显示部1011上的投影之间有间隙。即将所述缓冲散热层106不设置于所述粘合层103与第一背板102之间，由此本申请的显示装置100的弯折半径仅由第一背板102、第二背板104以及粘合层103的厚度决定，不用考虑缓冲散热层106的厚度。
事实上，缓冲散热层106的厚度与所述粘合层103的厚度之间没有必然联系，即所述缓冲散热层106的厚度可以大于、小于或等于所述粘合层103的厚度。如图2所示，本实施例中的所述缓冲层的厚度小于所述粘合层103的厚度。
所述缓冲散热层106的材料包括网格胶、泡棉、铜箔、PI、石墨片中的一种或多种。
其中，所述弯折部的弯折半径为r，所述粘合层的膜厚为h1，所述第一背板的膜厚为h2，所述第二背板的膜厚为h3，所述 h1+ h2+ h3=2r。本实施例中，所述h1+ h2+ h3＜0.5mm。
其中，所述第一背板102设于所述粘合层103与所述显示部1011之间；所述第一背板102包括：第一基材（图未示），设于所述粘合层103与所述显示部1011之间；以及第一聚酯层（图未示），设于所述第一基材与所述显示部1011之间。
所述第二背板104设于所述粘合层103与所述绑定部1013之间。所述第二背板104包括：第二基材（图未示），设于所述粘合层103与所述绑定部1013之间；以及第二聚酯层（图未示），设于所述第二基材与所述绑定部1013之间。
其中，所述第二背板104的宽度小于所述第一背板102的宽度；所述第二背板104的宽度大于所述粘合层103的宽度。
其中，第三胶层105设于所述弯折部1012、部分所述显示部1011以及部分所述绑定部1013上。第三胶层105主要是保护弯折区的形态，以及避免外力撞伤弯折区的显示面板。其中，第三胶层的材质可以选择UV胶。
综上，本申请中的粘合层103设于所述显示部1011与所述绑定部1013之间；缓冲散热层106设于所述显示面板101的显示部1011朝向所述绑定部1013的一侧；所述缓冲散热层106在所述显示部1011上的投影与所述粘合层103在所述显示部1011上的投影不重叠；使得本申请的显示装置100的弯折直径等于第一背板102、第二背板104以及粘合层103三者的厚度之和，且本申请的显示装置100的弯折直径小于0.5mm，相较于现有技术中的弯折直径等于第一背板、第二背板、粘合层以及缓冲散热层的厚度之和，本申请的显示装置100的弯折直径无需计量缓冲散热层106的厚度，使得本申请的显示装置100的弯折半径小于现有显示装置的弯折半径，从而降低显示装置100的边框宽度，实现窄边框效果，提高产品竞争力。
但是，弯折半径r越小，弯折区的显示面板101产生的反弹性越大，所以我们需要调节粘合层103的粘性以满足显示装置100对抗反弹性能的要求。具体的，可以通过调整粘合层103的材质或增加粘合层103的厚度以实现提高粘合层103的粘性的效果。当增加粘合层103的厚度以提高粘合层103的粘性时，需保持 h1+ h2+ h3=2r，且h1+ h2+ h3＜0.5mm。
本文中应用了具体个例对本申请的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本申请的技术方案及其核心思想；本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例的技术方案的范围。

Claims (10)

  1. 一种显示装置，包括：
    显示面板，其包括显示部、弯折至所述显示面板背面的绑定部、以及连接所述显示部和所述绑定部的弯折部；
    粘合层，设于所述显示部与所述绑定部之间；以及
    缓冲散热层，设于所述显示面板的显示部朝向所述绑定部的一侧；
    所述缓冲散热层在所述显示部上的投影与所述粘合层在所述显示部上的投影不重叠。
  2. 如权利要求1所述的显示装置，所述缓冲散热层位于所述粘合层远离所述弯折部的一侧。
  3. 如权利要求1所述的显示装置，还包括：
    第一背板，设于所述粘合层与所述显示部之间；以及
    第二背板，设于所述粘合层与所述绑定部之间；
    其中，所述粘合层设于所述第一背板与所述第二背板之间。
  4. 如权利要求3所述的显示装置，所述弯折部的弯折半径为r，所述粘合层的膜厚为h1，所述第一背板的膜厚为h2，所述第二背板的膜厚为h3，所述 h1+ h2+ h3=2r。
  5. 如权利要求4所述的显示装置，所述h1+ h2+ h3＜0.5mm。
  6. 如权利要求1所述的显示装置，所述粘合层包括：
    第一胶层，设于所述显示部与所述绑定部之间。
  7. 如权利要求6所述的显示装置，所述粘合层还包括：
    第二胶层，设于所述第一胶层与所述显示部之间；以及
    中间层，设于所述第一胶层与所述第二胶层之间；
    其中，所述中间层的材质包括热塑性聚酯、泡棉中的一种。
  8. 如权利要求3所述的显示装置，所述第一背板包括：
    第一基材，设于所述粘合层与所述显示部之间；以及
    第一聚酯层，设于所述第一基材与所述显示部之间。
  9. 如权利要求3所述的显示装置，所述第二背板包括：
    第二基材，设于所述粘合层与所述绑定部之间；以及
    第二聚酯层，设于所述第二基材与所述绑定部之间。
  10. 如权利要求1所述的显示装置，还包括：
    第三胶层，设于所述弯折部、部分所述显示部以及部分所述绑定部上。
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CN114783296A (zh) * 2022-05-07 2022-07-22 武汉华星光电半导体显示技术有限公司 一种显示装置及显示终端

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