WO2020124700A1 - 柔性显示装置的制作方法及柔性显示装置 - Google Patents

柔性显示装置的制作方法及柔性显示装置 Download PDF

Info

Publication number
WO2020124700A1
WO2020124700A1 PCT/CN2019/070719 CN2019070719W WO2020124700A1 WO 2020124700 A1 WO2020124700 A1 WO 2020124700A1 CN 2019070719 W CN2019070719 W CN 2019070719W WO 2020124700 A1 WO2020124700 A1 WO 2020124700A1
Authority
WO
WIPO (PCT)
Prior art keywords
area
flexible
bending
flexible display
binding
Prior art date
Application number
PCT/CN2019/070719
Other languages
English (en)
French (fr)
Inventor
欧阳峰
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 US16/621,819 priority Critical patent/US11296308B2/en
Publication of WO2020124700A1 publication Critical patent/WO2020124700A1/zh

Links

Classifications

    • 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
    • G09F9/33—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 being semiconductor devices, e.g. diodes
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
    • 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
    • H10K59/1201—Manufacture or treatment
    • 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
    • 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
    • H10K59/87—Passivation; Containers; Encapsulations
    • H10K59/873—Encapsulations
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/549—Organic PV cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Definitions

  • the present invention relates to the field of display technology, and in particular, to a method for manufacturing a flexible display device and a flexible display device.
  • the existing flat display devices on the market include liquid crystal display devices (Liquid Crystal Display, LCD) and organic electroluminescent diodes (organic light emitting diode, OLED) display.
  • LCD Liquid Crystal Display
  • OLED organic light emitting diode
  • OLED has many excellent characteristics such as self-luminescence, high brightness, wide viewing angle, high contrast, flexibility, low energy consumption, rich colors, fast response and can prepare flexible screens, which has aroused great interest in the scientific research industry and industry.
  • the next-generation display technology which is considered to have great potential, has begun to gradually replace traditional LCD monitors and is widely used in mobile phone screens, computer monitors, and full-color TVs.
  • Existing flat panel displays generally include a display panel (Panel) and an external circuit.
  • an external circuit such as a flexible circuit board (Free Pascal Compiler (FPC), Chip On Film (COF), connected to the outer lead bonding (OLB) area of the panel through leads, and the electrical connection between the external circuit and the OLB area of the display panel is through Bonding (Bonding) process connection, to achieve the drive signal to each signal line in the display panel.
  • FPC Free Pascal Compiler
  • COF Chip On Film
  • the existing flexible display device includes a flexible display panel 100 and a flexible circuit board 200 bound to the flexible display panel 100, and one end of the flexible display panel 100 is provided with a binding area 110, the flexible The circuit board 200 is bound to the binding area 110 of the flexible display panel 100, and the binding area 110 of the flexible display panel 100 is bent toward the back of the flexible display panel 100 through the bending area 120 to be located on the back of the display area 130.
  • the prior art coats a layer on the bending area 110 of the flexible display panel 100 before bending the bending area 120 of the flexible display panel 100
  • the protective adhesive layer 500 (for example, ultraviolet curing adhesive) is cured, and then the bending area 120 of the flexible display panel 100 and the protective adhesive layer 500 thereon are bent toward the back of the flexible display panel 100, and the protective adhesive layer 500 is provided It is to protect the bending area 120 of the flexible display panel 100.
  • the protective adhesive layer 500 on the bending area 120 is formed by interlacing multiple times. At the junction of the coating colloid, due to the influence of the lamination, the surface of the protective adhesive layer 500 will be uneven, and its flatness can only be ⁇ 5 mm; thus affecting the bending formation of the bending area 120, which leads to product failure.
  • the purpose of the present invention is to provide a method for manufacturing a flexible display device, which can effectively improve the surface flatness of the protective layer on the bending area, thereby facilitating the bending forming of the bending area.
  • the object of the present invention is also to provide a flexible display device, which can effectively improve the surface flatness of the protective layer on the bending area, thereby facilitating the bending forming of the bending area.
  • the present invention provides a method for manufacturing a flexible display device, including the following steps:
  • Step S1 Provide a flexible display panel
  • the flexible display panel is divided into a display area, a binding area located outside the display area, and a bending area located between the display area and the binding area;
  • the flexible display panel includes a flexible substrate and a TFT array layer provided on the flexible substrate corresponding to the display area, the binding area and the bending area, the binding circuit and the circuit traces;
  • Step S2 Provide a protective tape, and attach the protective tape on the entire surface of the flexible substrate in the bending area to cover and protect the circuit wiring in the bending area;
  • Step S3 Bending the bending area so that the binding area is located on a side of the flexible substrate of the display area away from the TFT array layer.
  • the elastic modulus of the protective tape provided in step S2 is the same as the elastic modulus of the flexible substrate.
  • the flexible substrate is a polyimide substrate.
  • a support plate is provided on a side of the flexible substrate away from the TFT array layer, and the support plate covers other areas of the flexible display panel except for the bending area;
  • the step S1 further includes providing a flexible circuit board and binding the flexible circuit board to the binding area of the flexible display panel.
  • the step S3 further includes providing a foam pad, and positioning the foam pad between the binding area and the display area on a side of the flexible substrate of the display area away from the TFT array layer.
  • the invention also provides a flexible display device, including a flexible display panel
  • the flexible display panel is divided into a display area, a binding area located outside the display area, and a bending area located between the display area and the binding area;
  • the binding area is located at the back of the display area by bending the bending area;
  • the flexible display panel includes a flexible substrate and a TFT array layer provided on the flexible substrate corresponding to the display area, the binding area and the bending area, the binding circuit and the circuit traces;
  • the bending area is provided with a protective tape attached to the flexible substrate on the entire surface to cover and protect the circuit wiring.
  • the elastic modulus of the protective tape is the same as the elastic modulus of the flexible substrate.
  • the flexible substrate is a polyimide substrate.
  • the flexible display device further includes a flexible circuit board bound to the binding area of the flexible display panel;
  • a support plate is provided on the side of the flexible substrate away from the TFT array layer, and the support plate covers other areas of the flexible display panel except for the bending area.
  • the flexible display device further includes a foam pad provided between the binding area and the display area on a side of the flexible substrate of the display area away from the TFT array layer.
  • the present invention provides a method for manufacturing a flexible display device, which protects the bending area by attaching a protective tape on the entire surface of the bending area of the flexible display panel.
  • a protective tape on the entire surface of the bending area of the flexible display panel.
  • the surface flatness of the protective layer on the bending area can be effectively improved, which is beneficial to the bending forming of the bending area and reduces the circuit traces in the bending area.
  • the risk of breaking during the bending process thereby reducing the defect rate of the product in the bending process and improving the product quality.
  • the flexible display device of the present invention protects the bending area by the attached protective tape, which can effectively improve the surface flatness of the protective layer on the bending area, thereby facilitating the bending forming of the bending area and reducing the bending area The risk of internal circuit traces breaking during bending, thereby reducing the defect rate of the product during the bending process and improving product quality.
  • FIG. 1 is a schematic diagram of a conventional flexible display device coated on a bending area to form a protective adhesive layer
  • FIG. 2 is a schematic side view of a conventional flexible display device before bending
  • FIG. 3 is a schematic flow chart of a method for manufacturing a flexible display device of the present invention.
  • step S2 of the method for manufacturing a flexible display device of the present invention is schematic diagrams of step S2 of the method for manufacturing a flexible display device of the present invention.
  • step S3 is a schematic diagram of step S3 of the method for manufacturing a flexible display device of the present invention.
  • FIG. 3 This is a schematic flowchart of the manufacturing method of the flexible display device of the present invention. In this embodiment, the following steps are specifically included:
  • step S1 Provide flexible display panel 10 .
  • the flexible display panel 10 Display area 1 And located in the display area 1 Outer binding zone 2 And in the display area 1 Binding zone 2 Bending zone 3 .
  • the flexible display panel 10 Including flexible substrate 90 , On flexible substrates 90 Corresponding to the display area 1 Successively set TFT (Thin film transistor) array layer and OLED Device layer and on flexible substrate 90 Set on TFT On the side of the array layer and in the binding area 2 Binding circuit and located in the bending zone 3 Circuit traces (not shown) of the flexible display panel 10 Of the back is a flexible substrate 90 keep away TFT On one side of the array layer, the flexible display panel 10 Is the side opposite to the back.
  • TFT Thin film transistor
  • the flexible substrate 90 Can be but not limited to polyimide ( PI ) Substrate.
  • the TFT The array layer includes multiple TFT ,
  • the multiple TFT Indium gallium zinc oxide semiconductor TFT Can also be low temperature polysilicon TFT , Of course, you can also use other commonly used in the existing technology TFT .
  • the flexible display panel 10 also covers OLED Thin film encapsulation layer of device layer, used to block water and oxygen intrusion OLED Device layer.
  • the steps S1 also includes providing flexible circuit boards 60 , The flexible circuit board 60 With the flexible display panel 10 Binding zone 2 Binding.
  • binding area 2 There is also a driver chip bound to it 65 .
  • step S2 As shown 4-5 As shown, provide protective tape 35 , In the flexible display panel 10 Bending zone 3 The front of the protective tape 35 Attach the entire surface to the flexible substrate 90 Up to take the bending zone 3 To protect the circuit traces, reduce the risk of the circuit traces breaking during the subsequent bending process, and disperse the stress on the circuit traces.
  • the step S2 Protective tape provided 35 Modulus of elasticity and the flexible substrate 90 Has the same elastic modulus.
  • the protective tape 35 The surface is smoothed to ensure the flatness of its surface, which is beneficial to the subsequent bending area 3 Bending forming, reducing bending area 3 The risk of internal circuit traces breaking during the bending process.
  • step S3 As shown, the bending zone 3 Bend to make the binding zone 2 Located in the display area 1 the back of.
  • the steps S3 also includes the provision of foam pads 70 , In the display area 1 The back of the foam pad 70 Set in the binding zone 2 With the display area 1 between.
  • the manufacturing method of the flexible display device of the present invention is in a flexible display panel 10 Bending zone 3 Attach an integrated protective tape on the entire surface 35 Way to the bending zone 3 Protected by coating with existing technology UV Compared with the method of forming a protective layer on the bending area, the glue can effectively improve the bending area 3 The flatness of the upper protective layer, which is beneficial to the bending area 3 Bending forming, reducing the bending area 3 The risk of internal circuit traces breaking during bending, thereby reducing the defect rate of the product during the bending process and improving product quality.
  • the present invention also provides a flexible display device including a flexible display panel 10 ;
  • the flexible display panel 10 Display area 1 And located in the display area 1 Outer binding zone 2 And in the display area 1 Binding zone 2 Bending zone 3 .
  • the binding area 2 By turning the bending zone 3 Bend to the display area 1 the back of.
  • the flexible display panel 10 Including flexible substrate 90 , On flexible substrates 90 Corresponding to the display area 1 Successively set TFT Array layer and OLED Device layer and on flexible substrate 90 Set on TFT On the side of the array layer and in the binding area 2 Binding circuit and located in the bending zone 3 Circuit traces of the flexible display panel 10 Of the back is a flexible substrate 90 keep away TFT On one side of the array layer, the flexible display panel 10 Is the side opposite to the back.
  • the flexible substrate 90 It may be, but not limited to, a polyimide substrate.
  • the TFT The array layer includes multiple TFT ,
  • the multiple TFT Indium gallium zinc oxide semiconductor TFT Can also be low temperature polysilicon TFT , Of course, you can also use other commonly used in the existing technology TFT .
  • the flexible display panel 10 also covers OLED Thin film encapsulation layer of device layer, used to block water and oxygen intrusion OLED Device layer.
  • the flexible display panel 10 Display area 1 There is also a polarizer 80 Wait for the structure.
  • the flexible substrate 90 Has a support plate on the back 50 ,
  • the support plate 50 Cover flexible display panel 10 In addition to the bending zone 3 Other areas.
  • the bending zone 3 Has a full surface attached to the flexible substrate 90 Protective tape 35 , To the bending zone 3 To protect the circuit traces.
  • the protective tape 35 Modulus of elasticity and the flexible substrate 90 Has the same elastic modulus.
  • the flexible display panel 10 Binding zone 2 There is a flexible circuit board bound to it 60 .
  • binding area 2 There is also a driver chip bound to it 65 .
  • an integrated protective tape is attached 35 Come to the bending zone 3 Protect, can effectively improve the bending area 3
  • the flatness of the upper protective layer which is beneficial to the bending area 3 Bending forming, reducing the bending area 3
  • the present invention provides a method for manufacturing a flexible display device, which protects the bending area by attaching a protective tape on the entire surface of the bending area of the flexible display panel.
  • UV Compared with the method of forming a protective layer on the bending area, the adhesive can effectively improve the surface flatness of the protective layer on the bending area, thereby facilitating the bending forming of the bending area and reducing the circuit traces in the bending area. The risk of breaking during the process, thereby reducing the defect rate of the product in the bending process and improving the quality of the product.
  • the flexible display device of the present invention protects the bending area by the attached protective tape, which can effectively improve the surface flatness of the protective layer on the bending area, thereby facilitating the bending forming of the bending area and reducing the bending area The risk of internal circuit traces breaking during bending, thereby reducing the defect rate of the product during the bending process and improving product quality.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Electroluminescent Light Sources (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

本发明提供一种柔性显示装置的制作方法及柔性显示装置。本发明的柔性显示装置的制作方法，在柔性显示面板的弯折区上通过整面贴附保护胶带的方式来对弯折区进行保护，与现有技术通过涂布UV胶在弯折区上形成防护层的方式相比，可以有效改善弯折区上防护层的表面平整性，从而有利于弯折区的弯折成型，降低弯折区内电路走线在弯折过程中断裂的风险，进而降低产品在弯折制程中的不良率，提升产品品质。

Description

柔性显示装置的制作方法及柔性显示装置 技术领域
本发明涉及显示技术领域，尤其涉及一种柔性显示装置的制作方法及柔性显示装置。
 背景技术
现有市场上的平面显示器装置包括液晶显示装置（Liquid Crystal Display，LCD）和有机电致发光二极管（organic light emitting diode, OLED）显示器。其中OLED具有自发光、高亮度、宽视角、高对比度、可挠曲、低能耗、色彩丰富、快速相应及可制备柔性屏等诸多优异特性，引起了科研界和产业界极大的兴趣，被认为是极具潜力的下一代显示技术，已开始逐渐取代传统液晶显示器，被广泛应用在手机屏幕、电脑显示器、全彩电视等。
现有的平板显示器一般包括显示面板（Panel）和外接电路，显示面板在正常显示时，需要使用外接电路，如柔性电路板（Free Pascal Compiler，FPC）、覆晶薄膜（Chip On Film，COF），通过引线连接到面板的外引脚贴合（Outer Lead Bonding，OLB）区域，外接电路与显示面板的OLB区域的电连接是通过绑定（Bonding）工艺连接，实现对显示面板中的各信号线传递驱动信号。
随着科技的发展，柔性显示装置展现出越来越广泛的应用前景，而柔性OLED显示装置作为当前最被看好的柔性显示技术，各方面投资和市占率不断上升。请参阅图1-2，现有的柔性显示装置包括柔性显示面板100及与柔性显示面板100绑定的柔性电路板200，所述柔性显示面板100的一端设有绑定区110，所述柔性电路板200与柔性显示面板100的绑定区110相绑定，且所述柔性显示面板100的绑定区110通过弯折区120向柔性显示面板100的背面弯曲而位于显示区130的背面，以减小显示装置的边界（border）宽度，提升屏占比，现有技术在将柔性显示面板100的弯折区120弯曲之前，会在柔性显示面板100的弯折区110上涂布一层保护胶层500（例如紫外光固化胶）并进行固化，之后将柔性显示面板100的弯折区120及其上的保护胶层500向柔性显示面板100的背面弯曲，该保护胶层500的设置是为了对柔性显示面板100的弯折区120进行保护，然而，如图2所示，因现有涂胶方式，弯折区120上的保护胶层500通过多次交错涂布形成，在两道涂布胶体的交接处，由于叠层影响，会造成保护胶层500表面不平整，其平坦度仅能做到±5mm；从而影响弯折区120弯折成型，进而导致产品不良。
 技术问题
本发明的目的在于提供一种柔性显示装置的制作方法，可以有效改善弯折区上防护层的表面平整性，从而有利于弯折区的弯折成型。
本发明的目的还在于提供一种柔性显示装置，可以有效改善弯折区上防护层的表面平整性，从而有利于弯折区的弯折成型。
 技术解决方案
为实现上述目的，本发明提供一种柔性显示装置的制作方法，包括如下步骤：
步骤S1、提供柔性显示面板；
所述柔性显示面板划分有显示区及位于所述显示区外侧的绑定区及位于显示区与绑定区之间的弯折区；
所述柔性显示面板包括柔性基板以及设于所述柔性基板上的分别对应所述显示区、绑定区和弯折区的TFT阵列层、绑定电路和电路走线；
步骤S2、提供保护胶带，在所述弯折区的柔性基板上整面贴附所述保护胶带，以对所述弯折区电路走线进行覆盖保护；
步骤S3、将所述弯折区进行弯折使所述绑定区位于所述显示区的柔性基板远离TFT阵列层的一侧。
所述步骤S2提供的保护胶带的弹性模量与所述柔性基板的弹性模量相同。
所述柔性基板为聚酰亚胺基板。
所述柔性基板远离TFT阵列层的一侧设有支撑板，所述支撑板覆盖柔性显示面板除弯折区以外的其他区域；
所述步骤S1还包括提供柔性电路板，将所述柔性电路板与所述柔性显示面板的绑定区绑定。
所述步骤S3还包括提供泡沫垫，在所述显示区的柔性基板远离TFT阵列层的一侧将所述泡沫垫设置在所述绑定区与所述显示区之间。
本发明还提供一种柔性显示装置，包括柔性显示面板；
所述柔性显示面板划分有显示区及位于所述显示区外侧的绑定区及位于显示区与绑定区之间的弯折区；
所述绑定区通过将所述弯折区进行弯折而位于所述显示区的背面；
所述柔性显示面板包括柔性基板以及设于所述柔性基板上的分别对应所述显示区、绑定区和弯折区的TFT阵列层、绑定电路和电路走线；
所述弯折区设有整面贴附在柔性基板上对电路走线进行覆盖保护的保护胶带。
所述保护胶带的弹性模量与所述柔性基板的弹性模量相同。
所述柔性基板为聚酰亚胺基板。
所述的柔性显示装置还包括与所述柔性显示面板的绑定区相绑定的柔性电路板；
所述柔性基板远离TFT阵列层的一侧设有支撑板，所述支撑板覆盖柔性显示面板除弯折区以外的其他区域。
所述的柔性显示装置还包括在所述显示区的柔性基板远离TFT阵列层的一侧设于所述绑定区与显示区之间的泡沫垫。
有益效果
本发明的有益效果：本发明提供一种柔性显示装置的制作方法，在柔性显示面板的弯折区上通过整面贴附保护胶带的方式来对弯折区进行保护，与现有技术通过涂布UV胶在弯折区上形成防护层的方式相比，可以有效改善弯折区上防护层的表面平整性，从而有利于弯折区的弯折成型，降低弯折区内电路走线在弯折过程中断裂的风险，进而降低产品在弯折制程中的不良率，提升产品品质。本发明的柔性显示装置，通过贴附的保护胶带来对弯折区进行保护，可以有效改善弯折区上防护层的表面平整性，从而有利于弯折区的弯折成型，降低弯折区内电路走线在弯折过程中断裂的风险，进而降低产品在弯折制程中的不良率，提升产品品质。
为了能更进一步了解本发明的特征以及技术内容，请参阅以下有关本发明的详细说明与附图，然而附图仅提供参考与说明用，并非用来对本发明加以限制。
 附图说明
下面结合附图，通过对本发明的具体实施方式详细描述，将使本发明的技术方案及其它有益效果显而易见。
附图中，
图1为现有柔性显示装置在弯折区上涂布形成保护胶层的示意图；
图2为现有柔性显示装置的在弯折前的侧视示意图；
图3为本发明的柔性显示装置的制作方法的流程示意图；
图4-5为本发明的柔性显示装置的制作方法的步骤S2的示意图；
图6为本发明的柔性显示装置的制作方法的步骤S3的示意图。
 本发明的实施方式
为更进一步阐述本发明所采取的技术手段及其效果，以下结合本发明的优选实施例及其附图进行详细描述。
请参阅图 3 ，图 3 为本发明的柔性显示装置的制作方法的流程示意图，本实施例中具体包括如下步骤：
步骤 S1 、提供柔性显示面板 10 。
具体地，所述柔性显示面板 10 划分有显示区 1 及位于所述显示区 1 外侧的绑定区 2 及位于显示区 1 与绑定区 2 之间的弯折区 3 。
具体地，所述柔性显示面板 10 包括柔性基板 90 、在柔性基板 90 上对应所述显示区 1 依次设置的 TFT （薄膜晶体管）阵列层及 OLED 器件层以及在柔性基板 90 上设于 TFT 阵列层一侧且位于绑定区 2 的绑定电路和位于弯折区 3 的电路走线（未图示），所述柔性显示面板 10 的背面为柔性基板 90 远离 TFT 阵列层的一侧，所述柔性显示面板 10 的正面为与背面相对的一侧。
具体地，所述柔性基板 90 可以但不限于为聚酰亚胺（ PI ）基板。
具体地，所述 TFT 阵列层包括多个 TFT ，所述多个 TFT 可以为铟镓锌氧化物半导体 TFT ，也可以为低温多晶硅 TFT ，当然，也可采用其他现有技术中常用的 TFT 。
具体地，所述柔性显示面板 10 还包括覆盖 OLED 器件层的薄膜封装层，用于阻隔水氧侵入 OLED 器件层。
具体地，所述步骤 S1 还包括在所述柔性显示面板 10 的显示区 1 上设置偏光片 80 等结构。
具体地，所述步骤 S1 提供的柔性显示面板 10 ，所述柔性基板 90 背面设有支撑板 50 ，所述支撑板 50 覆盖柔性显示面板 10 除弯折区 3 以外的其他区域。
具体地，所述步骤 S1 还包括提供柔性电路板 60 ，将所述柔性电路板 60 与所述柔性显示面板 10 的绑定区 2 绑定。
具体地，所述绑定区 2 上还设有与其绑定的驱动芯片 65 。
步骤 S2 、如图 4-5 所示，提供保护胶带 35 ，在所述柔性显示面板 10 的弯折区 3 的正面将所述保护胶带 35 整面贴附在柔性基板 90 上，以对弯折区 3 的电路走线进行保护，降低电路走线在后续弯折制程中断裂的风险，分散电路走线所受到的应力。
具体地，为了使模量匹配化，所述步骤 S2 提供的保护胶带 35 的弹性模量与所述柔性基板 90 的弹性模量相同。
具体地，所述保护胶带 35 的表面经过光滑处理，以确保其表面的平坦性，从而利于后续弯折区 3 弯折成型，降低弯折区 3 内电路走线在弯折制程中断裂的风险。
步骤 S3 、如图 6 所示，将所述弯折区 3 进行弯折使所述绑定区 2 位于所述显示区 1 的背面。
具体地，所述步骤 S3 还包括提供泡沫垫 70 ，在所述显示区 1 的背面将所述泡沫垫 70 设置在所述绑定区 2 与所述显示区 1 之间。
本发明的柔性显示装置的制作方法，在柔性显示面板 10 的弯折区 3 上通过整面贴附一体式的保护胶带 35 的方式来对弯折区 3 进行保护，与现有技术通过涂布 UV 胶在弯折区上形成防护层的方式相比，可以有效改善弯折区 3 上防护层的表面平整性，从而有利于弯折区 3 的弯折成型，降低弯折区 3 内电路走线在弯折过程中断裂的风险，进而降低产品在弯折制程中的不良率，提升产品品质。
基于同一发明构思，本发明还提供一种柔性显示装置，包括柔性显示面板 10 ；所述柔性显示面板 10 划分有显示区 1 及位于所述显示区 1 外侧的绑定区 2 及位于显示区 1 与绑定区 2 之间的弯折区 3 。
具体地，所述绑定区 2 通过将所述弯折区 3 进行弯折而位于所述显示区 1 的背面。
具体地，所述柔性显示面板 10 包括柔性基板 90 、在柔性基板 90 上对应所述显示区 1 依次设置的 TFT 阵列层及 OLED 器件层以及在柔性基板 90 上设于 TFT 阵列层一侧且位于绑定区 2 的绑定电路和位于弯折区 3 的电路走线，所述柔性显示面板 10 的背面为柔性基板 90 远离 TFT 阵列层的一侧，所述柔性显示面板 10 的正面为与背面相对的一侧。
具体地，所述柔性基板 90 可以但不限于为聚酰亚胺基板。
具体地，所述 TFT 阵列层包括多个 TFT ，所述多个 TFT 可以为铟镓锌氧化物半导体 TFT ，也可以为低温多晶硅 TFT ，当然，也可采用其他现有技术中常用的 TFT 。
具体地，所述柔性显示面板 10 还包括覆盖 OLED 器件层的薄膜封装层，用于阻隔水氧侵入 OLED 器件层。
具体地，所述柔性显示面板 10 的显示区 1 上还设有偏光片 80 等结构。
具体地，所述柔性基板 90 的背面设有支撑板 50 ，所述支撑板 50 覆盖柔性显示面板 10 除弯折区 3 以外的其他区域。
具体地，所述弯折区 3 的正面设有整面贴附在柔性基板 90 上的保护胶带 35 ，以对所述弯折区 3 的电路走线进行覆盖保护。
具体地，所述保护胶带 35 的弹性模量与所述柔性基板 90 的弹性模量相同。
具体地，所述柔性显示面板 10 的绑定区 2 上设有与其相绑定的柔性电路板 60 。
具体地，所述绑定区 2 上还设有与其绑定的驱动芯片 65 。
具体地，所述绑定区 2 在所述显示区 1 的背面与所述显示区 1 之间设有泡沫垫 70 。
本发明的柔性显示装置，通过贴附的一体式的保护胶带 35 来对弯折区 3 进行保护，可以有效改善弯折区 3 上防护层的表面平整性，从而有利于弯折区 3 的弯折成型，降低弯折区 3 内电路走线在弯折过程中断裂的风险，进而降低产品在弯折制程中的不良率，提升产品品质。
综上所述，本发明提供一种柔性显示装置的制作方法，在柔性显示面板的弯折区上通过整面贴附保护胶带的方式来对弯折区进行保护，与现有技术通过涂布 UV 胶在弯折区上形成防护层的方式相比，可以有效改善弯折区上防护层的表面平整性，从而有利于弯折区的弯折成型，降低弯折区内电路走线在弯折过程中断裂的风险，进而降低产品在弯折制程中的不良率，提升产品品质。本发明的柔性显示装置，通过贴附的保护胶带来对弯折区进行保护，可以有效改善弯折区上防护层的表面平整性，从而有利于弯折区的弯折成型，降低弯折区内电路走线在弯折过程中断裂的风险，进而降低产品在弯折制程中的不良率，提升产品品质。
以上所述，对于本领域的普通技术人员来说，可以根据本发明的技术方案和技术构思作出其他各种相应的改变和变形，而所有这些改变和变形都应属于本发明权利要求的保护范围。

Claims (10)

  1. 一种柔性显示装置的制作方法，包括如下步骤：
    步骤S1、提供柔性显示面板；
    所述柔性显示面板划分有显示区及位于所述显示区外侧的绑定区及位于显示区与绑定区之间的弯折区；
    所述柔性显示面板包括柔性基板以及设于所述柔性基板上的分别对应所述显示区、绑定区和弯折区的TFT阵列层、绑定电路和电路走线；
    步骤S2、提供保护胶带，在所述弯折区的柔性基板上整面贴附所述保护胶带，以对所述弯折区电路走线进行覆盖保护；
    步骤S3、将所述弯折区进行弯折使所述绑定区位于所述显示区的柔性基板远离TFT阵列层的一侧。
  2. 如权利要求1所述的柔性显示装置的制作方法，其中，所述步骤S2提供的保护胶带的弹性模量与所述柔性基板的弹性模量相同。
  3. 如权利要求1所述的柔性显示装置的制作方法，其中，所述柔性基板为聚酰亚胺基板。
  4. 如权利要求1所述的柔性显示装置的制作方法，其中，所述柔性基板远离TFT阵列层的一侧设有支撑板，所述支撑板覆盖柔性显示面板除弯折区以外的其他区域；
    所述步骤S1还包括提供柔性电路板，将所述柔性电路板与所述柔性显示面板的绑定区绑定。
  5. 如权利要求1所述的柔性显示装置的制作方法，其中，所述步骤S3还包括提供泡沫垫，在所述显示区的柔性基板远离TFT阵列层的一侧将所述泡沫垫设置在所述绑定区与所述显示区之间。
  6. 一种柔性显示装置，包括柔性显示面板；
    所述柔性显示面板划分有显示区及位于所述显示区外侧的绑定区及位于显示区与绑定区之间的弯折区；
    所述绑定区通过将所述弯折区进行弯折而位于所述显示区的背面；
    所述柔性显示面板包括柔性基板以及设于所述柔性基板上的分别对应所述显示区、绑定区和弯折区的TFT阵列层、绑定电路和电路走线；
    所述弯折区设有整面贴附在柔性基板上对电路走线进行覆盖保护的保护胶带。
  7. 如权利要求6所述的柔性显示装置，其中，所述保护胶带的弹性模量与所述柔性基板的弹性模量相同。
  8. 如权利要求6所述的柔性显示装置，其中，所述柔性基板为聚酰亚胺基板。
  9. 如权利要求6所述的柔性显示装置，还包括与所述柔性显示面板的绑定区相绑定的柔性电路板；
    所述柔性基板远离TFT阵列层的一侧设有支撑板，所述支撑板覆盖柔性显示面板除弯折区以外的其他区域。
  10. 如权利要求6所述的柔性显示装置，还包括在所述显示区的柔性基板远离TFT阵列层的一侧设于所述绑定区与显示区之间的泡沫垫。
PCT/CN2019/070719 2018-12-20 2019-01-07 柔性显示装置的制作方法及柔性显示装置 WO2020124700A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US16/621,819 US11296308B2 (en) 2018-12-20 2019-01-07 Flexible display device manufacturing method and flexible display device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201811565638.4 2018-12-20
CN201811565638.4A CN109638058B (zh) 2018-12-20 2018-12-20 柔性显示装置的制作方法及柔性显示装置

Publications (1)

Publication Number Publication Date
WO2020124700A1 true WO2020124700A1 (zh) 2020-06-25

Family

ID=66076102

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/070719 WO2020124700A1 (zh) 2018-12-20 2019-01-07 柔性显示装置的制作方法及柔性显示装置

Country Status (3)

Country Link
US (1) US11296308B2 (zh)
CN (1) CN109638058B (zh)
WO (1) WO2020124700A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112071203A (zh) * 2020-09-11 2020-12-11 武汉华星光电半导体显示技术有限公司 显示装置

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110164874B (zh) * 2019-06-04 2021-06-22 上海天马微电子有限公司 柔性显示模组、显示装置及柔性显示模组的制作方法
CN111736380A (zh) * 2019-07-26 2020-10-02 友达光电股份有限公司 显示面板及其制造方法
CN110797348B (zh) * 2019-10-12 2022-01-04 武汉华星光电半导体显示技术有限公司 一种显示面板
CN110767092B (zh) * 2019-11-05 2021-11-23 京东方科技集团股份有限公司 显示装置
CN111081146A (zh) * 2019-12-18 2020-04-28 京东方科技集团股份有限公司 一种显示基板的制备方法、显示基板及显示装置
CN111524942B (zh) * 2020-04-27 2023-04-18 武汉华星光电半导体显示技术有限公司 显示面板及显示装置
CN111653213A (zh) * 2020-06-10 2020-09-11 武汉华星光电半导体显示技术有限公司 显示模组及其制作方法
CN111668275A (zh) * 2020-06-19 2020-09-15 京东方科技集团股份有限公司 显示面板、其制作方法及显示装置
CN111933611B (zh) * 2020-07-31 2023-08-18 合肥维信诺科技有限公司 一种显示面板及显示装置
CN112863338B (zh) * 2021-01-12 2022-05-31 武汉华星光电半导体显示技术有限公司 显示模组及其制备方法
CN112928048B (zh) * 2021-01-27 2022-07-12 深圳市华星光电半导体显示技术有限公司 显示面板的制备方法及显示面板
CN113437116B (zh) * 2021-06-07 2022-04-08 深圳市华星光电半导体显示技术有限公司 柔性显示面板的制作方法
CN114078394B (zh) * 2021-11-26 2023-11-21 湖北长江新型显示产业创新中心有限公司 显示模组及可折叠显示装置
CN115254562B (zh) * 2022-06-20 2023-10-03 东莞理工学院 一种应用于柔性oled屏弯折贴合的缓冲层及其固化方法
TWI818827B (zh) * 2022-12-09 2023-10-11 友達光電股份有限公司 可撓性顯示裝置及其製造方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006040561A2 (en) * 2004-10-15 2006-04-20 Steven Day Graphic display system
CN204166244U (zh) * 2014-11-15 2015-02-18 东莞市飞洋光电科技有限公司 可提高fpc排线使用寿命的lcm
CN204442826U (zh) * 2015-01-22 2015-07-01 深圳秋田微电子有限公司 一种防止撕裂的fpc电路板
CN107731790A (zh) * 2016-08-12 2018-02-23 三星显示有限公司 有机发光显示装置
CN108281387A (zh) * 2018-01-23 2018-07-13 武汉华星光电半导体显示技术有限公司 柔性显示装置的制作方法及柔性显示装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102645189B1 (ko) * 2018-11-20 2024-03-08 삼성디스플레이 주식회사 표시장치

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006040561A2 (en) * 2004-10-15 2006-04-20 Steven Day Graphic display system
CN204166244U (zh) * 2014-11-15 2015-02-18 东莞市飞洋光电科技有限公司 可提高fpc排线使用寿命的lcm
CN204442826U (zh) * 2015-01-22 2015-07-01 深圳秋田微电子有限公司 一种防止撕裂的fpc电路板
CN107731790A (zh) * 2016-08-12 2018-02-23 三星显示有限公司 有机发光显示装置
CN108281387A (zh) * 2018-01-23 2018-07-13 武汉华星光电半导体显示技术有限公司 柔性显示装置的制作方法及柔性显示装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112071203A (zh) * 2020-09-11 2020-12-11 武汉华星光电半导体显示技术有限公司 显示装置

Also Published As

Publication number Publication date
US11296308B2 (en) 2022-04-05
CN109638058B (zh) 2020-06-16
CN109638058A (zh) 2019-04-16
US20210328202A1 (en) 2021-10-21

Similar Documents

Publication Publication Date Title
WO2020124700A1 (zh) 柔性显示装置的制作方法及柔性显示装置
CN108877519B (zh) 一种显示装置
US11411189B2 (en) Flexible OLED module stacked structure and manufacturing method thereof
WO2021007998A1 (zh) 显示面板、显示模组及显示装置
WO2018072502A1 (zh) 显示面板和显示装置
US20210349341A1 (en) Display device
US11051405B2 (en) Flexible display
US20200320939A1 (en) Liquid crystal display
WO2020124765A1 (zh) 柔性显示装置
TWI737182B (zh) 顯示面板、顯示裝置及顯示面板的製造方法
US10031385B2 (en) Chip on film package and display apparatus having the same
WO2019000912A1 (zh) 显示面板及其制造方法、显示装置
WO2021003784A1 (zh) 显示装置及其制作方法
US10674606B2 (en) Display panel and display device
WO2021138985A1 (zh) 显示面板的侧缘绑定结构及其制造方法
US20190229297A1 (en) Lamination method for flexible display screen and lamination device for flexible display screen
WO2020113705A1 (zh) 柔性基板及采用该柔性基板的显示面板
WO2020133794A1 (zh) 窄边框显示屏的制作方法及显示装置
WO2020168634A1 (zh) 阵列基板、显示面板及显示装置
WO2020118956A1 (zh) 一种显示面板及其制作方法、显示装置
WO2020034293A1 (zh) 一种显示面板及绑定方法
WO2020103241A1 (zh) 一种oled显示器
WO2024007589A1 (zh) 显示模组及显示装置
WO2021120351A1 (zh) 一种显示模组及其制备方法及电子装置
WO2021223592A1 (zh) 显示面板及显示装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19901163

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19901163

Country of ref document: EP

Kind code of ref document: A1