WO2021042573A1 - 柔性发光面板、柔性发光面板的制备方法及显示设备 - Google Patents

柔性发光面板、柔性发光面板的制备方法及显示设备 Download PDF

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Publication number
WO2021042573A1
WO2021042573A1 PCT/CN2019/119287 CN2019119287W WO2021042573A1 WO 2021042573 A1 WO2021042573 A1 WO 2021042573A1 CN 2019119287 W CN2019119287 W CN 2019119287W WO 2021042573 A1 WO2021042573 A1 WO 2021042573A1
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WO
WIPO (PCT)
Prior art keywords
emitting panel
substrate
flexible light
light
flexible
Prior art date
Application number
PCT/CN2019/119287
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English (en)
French (fr)
Inventor
王芳
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
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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 US16/642,022 priority Critical patent/US11316121B2/en
Publication of WO2021042573A1 publication Critical patent/WO2021042573A1/zh

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Classifications

    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10OLED displays
    • H10K59/12Active-matrix OLED [AMOLED] displays
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30Indicating 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
    • G09F9/301Indicating 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
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00Organic light-emitting devices
    • H10K50/80Constructional details
    • H10K50/84Passivation; Containers; Encapsulations
    • H10K50/842Containers
    • H10K50/8426Peripheral sealing arrangements, e.g. adhesives, sealants
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K71/00Manufacture or treatment specially adapted for the organic devices covered by this subclass

Definitions

  • This application relates to the field of display technology, and in particular to a flexible light-emitting panel, a method for preparing the flexible light-emitting panel, and a display device.
  • flexible light-emitting panels need to maintain their bending characteristics
  • flexible materials with better bending properties are usually selected.
  • a cover with a lower hardness is selected. window), so as to form a flexible light-emitting panel with lower overall hardness, but the flexible light-emitting panel is too soft to cause problems such as collapse or unevenness of the screen.
  • the embodiments of the present application provide a flexible light-emitting panel, a method for manufacturing a flexible light-emitting panel, and a display device, which can improve the overall hardness of the flexible light-emitting panel while ensuring the bending characteristics of the flexible light-emitting panel.
  • an embodiment of the present application provides a flexible light-emitting panel, including:
  • the substrate, the flexible layer, the light-emitting device, the polarizer and the cover plate are stacked in sequence from bottom to top; among them,
  • the substrate is a substrate made of a metal material.
  • the flexible light emitting panel includes at least one bending area.
  • At least one space is provided on the substrate, and the space is located in the bending area.
  • At least one groove is provided on the surface of the substrate away from the flexible layer, and the groove is located in the bending area.
  • the width of the groove is the same as the horizontal width of the bending area when the flexible light-emitting panel is in a flat state.
  • the metal material is a ductile metal.
  • an embodiment of the present application also provides a method for manufacturing a flexible light-emitting panel, including:
  • the substrate being a substrate made of a metal material
  • a polarizer is pasted on the light-emitting device.
  • the method further includes:
  • Patterning is performed on the surface of the substrate away from the flexible layer to form at least one space or groove on the substrate.
  • the patterning treatment on the surface of the substrate far from the flexible layer includes:
  • the surface of the substrate opposite to the middle area of the flexible layer is etched.
  • an embodiment of the present application further provides a display device, including: a flexible light-emitting panel and a housing, the flexible light-emitting panel is disposed on the housing, and the flexible light-emitting panel includes:
  • the substrate, the flexible layer, the light-emitting device, the polarizer and the cover plate are stacked in sequence from bottom to top; among them,
  • the substrate is a substrate made of a metal material.
  • the flexible light-emitting panel includes at least one bending area.
  • At least one gap is provided on the substrate, and the gap is located in the bending area.
  • At least one groove is provided on the surface of the substrate away from the flexible layer, and the groove is located in the bending area.
  • the width of the groove is the same as the horizontal width of the bending area when the flexible light-emitting panel is in a flat state.
  • the metal material is a ductile metal.
  • the embodiment of the present application also provides a flexible light-emitting panel, which includes:
  • the substrate, the flexible layer, the light-emitting device, the polarizer and the cover plate are stacked in sequence from bottom to top; among them,
  • the substrate is a substrate made of a metal material, wherein the flexible light-emitting panel includes at least one bending area, and the metal material is a ductile metal.
  • the flexible light-emitting panel provided by the embodiments of the present application includes: a substrate, a flexible layer, a light-emitting device, a polarizer, and a cover plate stacked in sequence from bottom to top; wherein the substrate is a substrate made of a metal material.
  • the substrate is a substrate made of a metal material.
  • FIG. 1 is a schematic structural diagram of a display device provided by an embodiment of the application.
  • FIG. 2 is a schematic flow chart of a method for manufacturing a flexible light-emitting panel provided by an embodiment of the application
  • FIG. 3 is a schematic diagram of the first structure of a flexible light emitting panel provided by an embodiment of the application.
  • FIG. 4 is a schematic diagram of a second structure of a flexible light emitting panel provided by an embodiment of the application.
  • FIG. 5 is a schematic diagram of a third structure of a flexible light-emitting panel provided by an embodiment of the application.
  • FIG. 6 is a schematic diagram of the structure of a substrate provided by an embodiment of the application.
  • FIG. 7 is a schematic diagram of a fourth structure of a flexible light-emitting panel provided by an embodiment of the application.
  • each layer of material in the flexible light-emitting panel is also selected from flexible materials with better bending properties. For example, when the flexible light-emitting panel is prepared, a cover with a lower hardness is selected.
  • a steel sheet or the like is usually added as a metal support layer for the whole stack, which will cause the overall thickness of the flexible light-emitting panel to be too large.
  • An embodiment of the present application provides a display device, including: a flexible light-emitting panel and a housing, the flexible light-emitting panel is disposed on the housing, and the flexible light-emitting panel includes:
  • the substrate, the flexible layer, the light-emitting device, the polarizer and the cover plate are stacked in sequence from bottom to top; among them,
  • the substrate is a substrate made of a metal material.
  • the flexible light-emitting panel includes at least one bending area.
  • At least one space is provided on the substrate, and the space is located in the bending area.
  • At least one groove is provided on the surface of the substrate away from the flexible layer, and the groove is located in the bending area.
  • the width of the groove is the same as the horizontal width of the bending area when the flexible light-emitting panel is in a flat state.
  • the metal material is ductile metal.
  • FIG. 1 is a schematic structural diagram of a display device 1000 provided by an embodiment of the application.
  • the display device 100 may include a flexible light emitting panel 100, a control circuit 200, and a housing 300. It should be noted that the display device 1000 shown in FIG. 1 is not limited to the above content, and may also include other devices, such as a camera, an antenna structure, a pattern unlocking module, and the like.
  • the flexible light emitting panel 100 is disposed on the housing 200.
  • the housing may include a mounting mechanism and a hinge structure of the flexible light-emitting panel 100 (not shown in the figure).
  • the flexible light-emitting panel 100 may be fixed to the housing 300, and the flexible light-emitting panel 100 and the housing 300 form a closed space to accommodate devices such as the control circuit 200.
  • the housing 300 may be made of a flexible material, such as a plastic housing or a silicone housing.
  • control circuit 200 is installed in the housing 300, the control circuit 200 may be the main board of the display device 1000, and the control circuit 200 may be integrated with a battery, an antenna structure, a microphone, a speaker, a headphone interface, a universal serial bus interface, One, two or more of functional components such as camera, distance sensor, ambient light sensor, receiver, and processor.
  • the flexible light-emitting panel 100 is installed in the housing 300, and at the same time, the flexible light-emitting panel 100 is electrically connected to the control circuit 200 to form the display surface of the display device 1000.
  • the flexible light emitting panel 100 may include a display area and a non-display area.
  • the display area can be used to display the screen of the display device 1000 or for the user to perform touch manipulation.
  • This non-display area can be used to set various functional components.
  • the embodiment of the present application also provides a method for manufacturing a flexible light-emitting panel, including:
  • the substrate being a substrate made of a metal material
  • a polarizer is pasted on the light-emitting device.
  • the method further includes:
  • Patterning is performed on the surface of the substrate away from the flexible layer to form at least one space or groove on the substrate.
  • the patterning treatment on the surface of the substrate far from the flexible layer includes:
  • the surface of the substrate opposite to the middle area of the flexible layer is etched.
  • FIG. 2 is a schematic flowchart of a method for manufacturing a flexible light-emitting panel provided by an embodiment of the application, including:
  • a substrate 10 which is a substrate 10 made of a metal material.
  • FIG. 3 is a schematic diagram of the first structure of the flexible light-emitting panel 100 provided by an embodiment of the application.
  • the substrate 10 made of a metal material can be directly used as the base of the flexible light-emitting panel 100.
  • the metal material for preparing the substrate 10 needs to have characteristics such as bendability and extension. Based on this, the metal material is a ductile metal.
  • Ductility refers to the deformation capacity of a material structure, member, or a certain section of a member from the beginning of yielding to the maximum load-bearing capacity or after the load-bearing capacity has not significantly decreased. For example, gold, copper, aluminum, etc. are all materials with higher ductility.
  • the metal material is either aluminum (Al) or stainless steel (SUS).
  • Al aluminum
  • SUS stainless steel
  • the thickness of the substrate 10 made of aluminum is generally 1 mm; when the metal material is stainless steel, it is made of stainless steel.
  • the thickness of the finished substrate 10 is generally 30 ⁇ m. Based on different metals, bending performance, and cost considerations, the thickness of the substrate 10 formed of different metal materials is also different, which will not be repeated here.
  • the flexible layer 20 is generally made of polyimide (PI) into a solution, and then the solution is coated on the substrate 10, and then cured by ultraviolet light (UV) to form the flexible layer 20.
  • PI polyimide
  • UV ultraviolet light
  • the flexible layer 20 has excellent special properties such as high and low temperature resistance, electrical insulation, adhesion, and radiation resistance.
  • the light emitting device 30 may include a TFT, a pixel defining layer, and an anode, a hole transport layer, a light emitting layer, an electron transport layer, and a cathode (all not shown in the figure) which are sequentially formed on the area defined by the pixel defining layer. Out) and so on.
  • a TFT time division multiplexing
  • a pixel defining layer an anode
  • a hole transport layer a light emitting layer
  • an electron transport layer an electron transport layer
  • a cathode all not shown in the figure
  • the light-emitting device 30 is not limited to an OLED, and may also be an LCD or the like.
  • the light-emitting device 30 is a liquid crystal cell (Liquid Crystal Display, LCD) requires a polarizer 40 to be attached to the light-emitting device 30.
  • the imaging of the liquid crystal display must rely on polarized light.
  • the polarizer 40 is used to dissipate surface reflection and reverse the propagation direction of polarized light to achieve enhanced brightness and reduced color. Saturation and other functions.
  • the polarizer 40 generally used for LCD generally includes liquid crystal glass and polarizers attached to two opposite surfaces of the liquid crystal glass. Therefore, the thickness of the polarizer 40 is usually 1 mm.
  • a circular polarizer 40 is also needed to weaken the cathode or other issues. Reflection of metal.
  • FIG. 4 is a schematic diagram of the second structure of the flexible light-emitting panel 100 provided by an embodiment of the application.
  • the surface 101 of the substrate 10 far from the flexible layer 20 may be patterned to form at least A gap 102 or groove 103.
  • FIG. 5 is a third structural schematic diagram of the flexible light-emitting panel 100 provided by an embodiment of the application.
  • the patterning process is generally an etching process, and the surface 101 on the substrate 10 away from the flexible layer 20 is etched. Moreover, according to the different etching degree, a space 102 with a deeper etching degree or a groove 103 with a shallower etching degree may be formed on the surface 101. In addition, the cross-sectional shape of the formed groove 103 may be square, arc, or the like. Since the flexible light-emitting panel 100 has bending characteristics, it can be bent according to the bending area of the flexible light-emitting panel 100. If it is stipulated that the flexible light-emitting panel 100 can only be bent through a fixed bending area, the space 102 or the groove 103 formed by the etching process is located in the bending area. By arranging the gap 102 and the groove 103 in the bending area, the stress generated when the flexible light-emitting panel 100 is bent is released through the gap 102 or the groove 103.
  • the fixed bending area of the flexible light-emitting panel 100 is not limited, that is, there may be multiple light-emitting areas AA on the flexible light-emitting panel 100. As shown in FIG. 5, the user can bend at any position of the flexible light-emitting panel 100, that is, flexible light-emitting.
  • the panel 100 includes at least one bending area AA.
  • the width of the groove 103 is the same as the horizontal width of the bending area AA when the flexible light-emitting panel 100 is in a flat state.
  • FIG. 6 is a schematic diagram of the structure of the substrate 10 provided by an embodiment of the application.
  • the groove 103 formed on the substrate 10 and the cross-sectional shape of the groove 103 is an arc as an example, when the flexible light-emitting panel 100 When bending, the substrate 10 is bent under the influence of the bending force, and the substrate material on both sides of the groove 103 fills the inside of the groove 103, that is, the groove 103 will reduce the compressive stress of the substrate material and reduce the compressive stress of the substrate material. It is small so that the stress neutral surface of the flexible light-emitting panel 100 during bending is adjusted to other layers, such as an encapsulation layer.
  • FIG. 7 is a schematic diagram of the fourth structure of the flexible light-emitting panel 100 provided by an embodiment of the application.
  • the surface 101 of the substrate 10 opposite to the middle area BB of the flexible layer 20 is etched.
  • the bending area AA is located in the middle position of the flexible light-emitting panel 100, that is, the position of the middle area BB of the flexible layer 20.
  • the embodiments of the present application also provide a flexible light-emitting panel, including:
  • the substrate, the flexible layer, the light-emitting device, the polarizer and the cover plate are stacked in sequence from bottom to top; among them,
  • the substrate is a substrate made of a metal material.
  • the flexible light-emitting panel includes at least one bending area.
  • At least one space is provided on the substrate, and the space is located in the bending area.
  • At least one groove is provided on the surface of the substrate away from the flexible layer, and the groove is located in the bending area.
  • the width of the groove is the same as the horizontal width of the bending area when the flexible light-emitting panel is in a flat state.
  • the metal material is ductile metal.
  • the light-emitting panel provided by the embodiment of the present application includes: a substrate, a flexible layer, a light-emitting device, a polarizer, and a cover plate stacked in sequence from bottom to top; wherein the substrate is a substrate made of a metal material.
  • the substrate is a substrate made of a metal material.
  • the embodiments of the present application also provide a flexible light-emitting panel, including:
  • the substrate, the flexible layer, the light-emitting device, the polarizer and the cover plate are stacked in sequence from bottom to top; among them,
  • the substrate is a substrate made of a metal material, wherein the flexible light-emitting panel includes at least one bending area, and the metal material is a ductile metal.

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Abstract

一种柔性发光面板(100)、柔性发光面板(100)的制备方法及显示设备(1000),柔性发光面板(100)包括:从下至上依次层叠设置的基板(10)、柔性层(20)、发光器件(30)、偏光片(40)及盖板;所述基板(10)为由金属材料制成的基板(10)。通过由金属材料制成的基板(10)作为柔性发光面板(100)的基底,进而可以在保证柔性发光面板(100)弯折特性的同时提高柔性发光面板(100)的整体硬度。

Description

柔性发光面板、柔性发光面板的制备方法及显示设备 技术领域
本申请涉及显示技术领域,具体涉及一种柔性发光面板、柔性发光面板的制备方法及显示设备。
背景技术
近年来,随着显示技术的发展,显示设备例如手机、平板电脑等以其便携被用户所接受,而可弯折显示器相较于一般显示器具有可弯折、扭曲或卷起的优点,使得高分辨率、大尺寸的显示需求与设备的便携性不再成为矛盾。
目前,柔性发光面板由于需要保持其弯折特征,通常选用弯折性能较好的柔性材料,例如,在制备柔性发光面板时会选用硬度较低的盖板(cover window),从而形成整体硬度较低的柔性发光面板,但是柔性发光面板过于柔软会造成屏幕塌陷或不平整等问题。
因此,现有技术存在缺陷,急需改进。
技术问题
本申请实施例提供一种柔性发光面板、柔性发光面板的制备方法及显示设备,可以在保证柔性发光面板弯折特性的同时的提高柔性发光面板的整体硬度。
技术解决方案
第一方面,本申请实施例提供一种柔性发光面板,包括:
从下至上依次层叠设置的基板、柔性层、发光器件、偏光片及盖板;其中,
所述基板为由金属材料制成的基板。
在本申请所述的柔性发光面板中,所述柔性发光面板包括至少一弯折区。
在本申请所述的柔性发光面板中,所述基板上设置有至少一间隔,且所述间隔位于所述弯折区。
在本申请所述的柔性发光面板中,在所述基板远离所述柔性层的表面上设置有至少一凹槽,且所述凹槽位于所述弯折区。
在本申请所述的柔性发光面板中,所述凹槽的宽度与所述柔性发光面板处于展平状态下的所述弯折区的水平宽度相同。
在本申请所述的柔性发光面板中,所述金属材料为延性金属。
第二方面,本申请实施例还提供一种柔性发光面板的制备方法,包括:
提供一基板,所述基板为由金属材料制成的基板;
在所述基板上涂布柔性层;
在所述柔性层上形成发光器件;
在所述发光器件上贴覆偏光片。
在本申请所述的柔性发光面板的制备方法中,所述在所述发光器件上贴覆偏光片之后,还包括:
对所述基板中远离所述柔性层的表面进行图案化处理,以在所述基板上形成至少一间隔或凹槽。
在本申请所述的柔性发光面板的制备方法中,所述对所述基板中远离所述柔性层的表面进行图案化处理,包括:
对所述基板上相对于柔性层的中间区的所述表面进行刻蚀。
第三方面,本申请实施例还提供一种显示设备,包括:柔性发光面板及壳体,所述柔性发光面板设置在所述壳体上,所述柔性发光面板包括:
从下至上依次层叠设置的基板、柔性层、发光器件、偏光片及盖板;其中,
所述基板为由金属材料制成的基板。
在本申请所述的显示设备中,所述柔性发光面板包括至少一弯折区。
在本申请所述的显示设备中,所述基板上设置有至少一间隔,且所述间隔位于所述弯折区。
在本申请所述的显示设备中,在所述基板远离所述柔性层的表面上设置有至少一凹槽,且所述凹槽位于所述弯折区。
在本申请所述的显示设备中,所述凹槽的宽度与所述柔性发光面板处于展平状态下的所述弯折区的水平宽度相同。
在本申请所述的显示设备中,所述金属材料为延性金属。
本申请实施例还提供一种柔性发光面板,其包括:
从下至上依次层叠设置的基板、柔性层、发光器件、偏光片及盖板;其中,
所述基板为由金属材料制成的基板,其中所述柔性发光面板包括至少一弯折区,所述金属材料为延性金属。
有益效果
本申请实施例提供的柔性发光面板,包括:从下至上依次层叠设置的基板、柔性层、发光器件、偏光片及盖板;其中,所述基板为由金属材料制成的基板。通过由金属材料制成的基板作为柔性发光面板的基底,进而提高柔性发光面板的整体硬度。
附图说明
为了更清楚地说明本申请实施例中的技术方案,下面将对实施例描述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申请的一些实施例,对于本领域技术人员来讲,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为本申请实施例提供的显示设备的结构示意图。
图2为本申请实施例提供的柔性发光面板的制备方法的流程示意图
图3为本申请实施例提供的柔性发光面板的第一种结构示意图。
图4为本申请实施例提供的柔性发光面板的第二种结构示意图。
图5为本申请实施例提供的柔性发光面板的第三种结构示意图。
图6为本申请实施例提供的基板的结构示意图。
图7为本申请实施例提供的柔性发光面板的第四种结构示意图。
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。
相关技术中,在制备柔性发光面板时为满足弯折特性,多选用弯折性能较好的柔性材料作为柔性发光面板的制备基材,因此,会选用将柔性层涂布于玻璃基板上,并且,在制备发光器件时,需要在阵列(Array)及电致发光组件(Electroluminescence,EL)制程结束后再通过激光剥离制程(Laser Lift Off ,LLO)等工艺去除玻璃基板。但是,这种LLO工艺增加了面板玻璃(Panel peeling)风险和生产成本。另一方面,柔性发光面板中各层材料也均选用弯折性能较好的柔性材料,例如,在制备柔性发光面板时会选用硬度较低的盖板(cover window),从而形成整体硬度较低的柔性发光面板,但是柔性发光面板过于柔软会造成屏幕塌陷或不平整等问题。并且,在柔性发光面板的搭载机构设计中,通常面板背部除了背板(BP)外,还需加入钢片等作为叠构整体的金属支撑层,这样会使柔性发光面板的整体厚度过大。
本申请实施例提供一种显示设备,包括:柔性发光面板及壳体,所述柔性发光面板设置在所述壳体上,所述柔性发光面板包括:
从下至上依次层叠设置的基板、柔性层、发光器件、偏光片及盖板;其中,
所述基板为由金属材料制成的基板。
其中,所述柔性发光面板包括至少一弯折区。
其中,所述基板上设置有至少一间隔,且所述间隔位于所述弯折区。
其中,在所述基板远离所述柔性层的表面上设置有至少一凹槽,且所述凹槽位于所述弯折区。
其中,所述凹槽的宽度与所述柔性发光面板处于展平状态下的所述弯折区的水平宽度相同。
其中,所述金属材料为延性金属。
请参阅图1,图1为本申请实施例提供的显示设备1000的结构示意图。该显示设备100可以包括柔性发光面板100、控制电路200、以及壳体300。需要说明的是,图1所示的显示设备1000并不限于以上内容,其还可以包括其他器件,比如还可以包括摄像头、天线结构、纹解锁模块等。
其中,柔性发光面板100设置于壳体200上。壳体上可以包括有柔性发光面板100的搭载机构及铰链结构等(图中未示出)。
在一些实施例中,柔性发光面板100可以固定到壳体300上,柔性发光面板100和壳体300形成密闭空间,以容纳控制电路200等器件。
在一些实施例中,壳体300可以为由柔性材料制成,比如为塑胶壳体或者硅胶壳体等。
其中,该控制电路200安装在壳体300中,该控制电路200可以为显示设备1000的主板,控制电路200上可以集成有电池、天线结构、麦克风、扬声器、耳机接口、通用串行总线接口、摄像头、距离传感器、环境光传感器、受话器以及处理器等功能组件中的一个、两个或多个。
其中,该柔性发光面板100安装在壳体300中,同时,该柔性发光面板100电连接至控制电路200上,以形成显示设备1000的显示面。该柔性发光面板100可以包括显示区域和非显示区域。该显示区域可以用来显示显示设备1000的画面或者供用户进行触摸操控等。该非显示区域可用于设置各种功能组件。
本申请实施例还提供一种柔性发光面板的制备方法,包括:
提供一基板,所述基板为由金属材料制成的基板;
在所述基板上涂布柔性层;
在所述柔性层上形成发光器件;
在所述发光器件上贴覆偏光片。
其中,所述在所述发光器件上贴覆偏光片之后,还包括:
对所述基板中远离所述柔性层的表面进行图案化处理,以在所述基板上形成至少一间隔或凹槽。
其中,所述对所述基板中远离所述柔性层的表面进行图案化处理,包括:
对所述基板上相对于柔性层的中间区的所述表面进行刻蚀。
请参阅图2,图2为本申请实施例提供的柔性发光面板的制备方法的流程示意图,包括:
110、提供一基板10,该基板10为由金属材料制成的基板10。
具体的,请参阅图3,图3为本申请实施例提供的柔性发光面板100的第一种结构示意图。
可以理解,为了避免柔性发光面板100整体硬度较低的问题,可以直接将由金属材料制成的基板10作为柔性发光面板100的基底。同时为了保留柔性发光面板100的弯折特性,需要保证基板10可弯折,扭曲。因此,制备该基板10的金属材料需要具备可弯折,可延伸等特性。基于此,该金属材料为延性金属。延性是指材料的结构、构件或构件的某个截面从屈服开始到达最大承载能力或到达以后而承载能力还没有明显下降期间的变形能力。举例来说,金、铜、铝等皆属于有较高延性的材料。
具体的,金属材料为铝(Al)和不锈钢(SUS)中任一种,当金属材料为铝时,由铝制成的基板10的厚度一般为1mm;当金属材料为不锈钢时,由不锈钢制成的基板10的厚度一般为30μm。基于不同的金属、弯折性能、成本考虑,由不同金属材料形成的基板10的厚度也不相同,这里不再赘述。
120、在基板10上涂布柔性层20。
具体的,柔性层20一般采用聚酰亚胺(Polyimide,PI)制成溶液,再将溶液涂布在基板10上,后续经过紫外光(Ultraviolet light,UV)固化形成柔性层20。柔性层20具有优良的耐高低温性、电气绝缘性、粘接性、耐辐射性等特殊属性。
130、在柔性层20上形成发光器件30。
具体的,发光器件30可以包括TFT、像素界定层,以及在被像素界定层所限定出的区域上依次形成的阳极、空穴传输层、发光层、电子传输层以及阴极(图中均未示出)等。当电力供应至适当电压时,正极空穴与阴极电荷就会在发光层中结合,产生光亮,从而产生红、绿和蓝 RGB 三原色。但不仅限于RGB三种颜色,还可以包括白色W,这里不做限定。当然,发光器件30不仅限于OLED,也可以是LCD等。
140、在发光器件30上贴覆偏光片40。
具体的,若发光器件30为液晶盒(Liquid Crystal Display,LCD)则需在发光器件30上贴附偏光片40,液晶显示成像必须依靠偏振光,而偏光片40用于消散表面反光,并且扭转偏振光的传播方向,从而实现增强亮度、减弱色彩饱和度等功能。一般用于LCD的偏光片40一般包括液晶玻璃,以及贴合在液晶玻璃相对的两个表面上的偏光片,因此通常偏光片40的厚度为1mm。
可以理解,当发光器件30为OLED时,为了避免外界光照射到柔性发光面板100上会被阴极等金属反射回来,影响对比度等问题,一般也需要圆形的偏光片40,以减弱阴极或其他金属的反射。
在一些实施例中,如图4所示,图4为本申请实施例提供的柔性发光面板100的第二种结构示意图。
具体的,为了避免柔性发光面板100在弯折时产生的应力无法释放的问题,可以在步骤140之后,对基板10中远离柔性层20的表面101进行图案化处理,以在基板10上形成至少一间隔102或凹槽103。其中,基板10上形成凹槽103的柔性发光面板100的结构示意图如图5所示,图5为本申请实施例提供的柔性发光面板100的第三种结构示意图。
图案化处理一般为刻蚀处理,对基板10上远离柔性层20的表面101进行刻蚀处理。并且根据刻蚀程度的不同可以在表面101上形成刻蚀程度较深的间隔102,或刻蚀程度较浅的凹槽103。并且,形成的凹槽103的截面形状可以为方形、弧形等。由于柔性发光面板100具有弯折特性,因此可根据柔性发光面板100的弯折区进行弯折。若规定柔性发光面板100只能通过一固定的弯折区进行弯折,则刻蚀处理形成的间隔102或凹槽103位于弯折区。通过将间隔102与凹槽103设置于弯折区,从而达到在弯折柔性发光面板100时产生的应力通过间隔102或凹槽103释放。
若不限定柔性发光面板100的固定弯折区,即柔性发光面板100上可以存在多个发光区AA,如图5所示,用户可在柔性发光面板100的任意位置进行弯折,即柔性发光面板100包括至少一弯折区AA。
其中,凹槽103的宽度与所述柔性发光面板100处于展平状态下的所述弯折区AA的水平宽度相同。
具体的,请参阅图6,图6为本申请实施例提供的基板10的结构示意图,以基板10上形成凹槽103并且凹槽103的截面形状为弧形为例,当对柔性发光面板100弯折时,基板10受到弯折力的影响进行弯折,凹槽103两侧的基板材料向凹槽103内部填充,即凹槽103会导致基板材料压缩应力减小,基板材料的压缩应力减小使得柔性发光面板100在弯折时的应力中性面调整至其他层上,例如封装层。
在一些实施例中,如图7所示,图7为本申请实施例提供的柔性发光面板100的第四种结构示意图。
对基板10上相对于柔性层20的中间区BB的表面101进行刻蚀。这种情况为弯折区AA位于柔性发光面板100的中间位置,也即柔性层20的中间区BB的位置。
本申请实施例还提供一种柔性发光面板,包括:
从下至上依次层叠设置的基板、柔性层、发光器件、偏光片及盖板;其中,
所述基板为由金属材料制成的基板。
其中,所述柔性发光面板包括至少一弯折区。
其中,所述基板上设置有至少一间隔,且所述间隔位于所述弯折区。
其中,在所述基板远离所述柔性层的表面上设置有至少一凹槽,且所述凹槽位于所述弯折区。
其中,所述凹槽的宽度与所述柔性发光面板处于展平状态下的所述弯折区的水平宽度相同。
其中,所述金属材料为延性金属。
本申请实施例提供的发光面板,包括:从下至上依次层叠设置的基板、柔性层、发光器件、偏光片及盖板;其中,所述基板为由金属材料制成的基板。通过由金属材料制成的基板作为柔性发光面板的基底,进而可以在保证柔性发光面板弯折特性的同时的提高柔性发光面板的整体硬度。
本申请实施例还提供一种柔性发光面板,包括:
从下至上依次层叠设置的基板、柔性层、发光器件、偏光片及盖板;其中,
所述基板为由金属材料制成的基板,其中所述柔性发光面板包括至少一弯折区,所述金属材料为延性金属。
以上对本申请实施例所提供的一种柔性发光面板、柔性发光面板的制备方法及显示设备进行了详细介绍,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 (16)

  1. 一种柔性发光面板,其包括:
    从下至上依次层叠设置的基板、柔性层、发光器件、偏光片及盖板;其中,
    所述基板为由金属材料制成的基板。
  2. 根据权利要求1所述的柔性发光面板,其中所述柔性发光面板包括至少一弯折区。
  3. 根据权利要求2所述的柔性发光面板,其中所述基板上设置有至少一间隔,且所述间隔位于所述弯折区。
  4. 根据权利要求2所述的柔性发光面板,其中在所述基板远离所述柔性层的表面上设置有至少一凹槽,且所述凹槽位于所述弯折区。
  5. 根据权利要求4所述的柔性发光面板,其中所述凹槽的宽度与所述柔性发光面板处于展平状态下的所述弯折区的水平宽度相同。
  6. 根据权利要求1所述的柔性发光面板,其中所述金属材料为延性金属。
  7. 一种柔性发光面板的制备方法,其包括:
    提供一基板,所述基板为由金属材料制成的基板;
    在所述基板上涂布柔性层;
    在所述柔性层上形成发光器件;
    在所述发光器件上贴覆偏光片。
  8. 根据权利要求7所述的柔性发光面板的制备方法,其中所述在所述发光器件上贴覆偏光片之后,还包括:
    对所述基板中远离所述柔性层的表面进行图案化处理,以在所述基板上形成至少一间隔或凹槽。
  9. 根据权利要求8所述的柔性发光面板的制备方法,其中所述对所述基板中远离所述柔性层的表面进行图案化处理,包括:
    对所述基板上相对于柔性层的中间区的所述表面进行刻蚀。
  10. 一种显示设备,其中所述显示设备包括柔性发光面板及壳体,所述柔性发光面板设置在所述壳体上,所述柔性发光面板包括:
    从下至上依次层叠设置的基板、柔性层、发光器件、偏光片及盖板;其中,
    所述基板为由金属材料制成的基板。
  11. 根据权利要求10所述的显示设备,其中所述柔性发光面板包括至少一弯折区。
  12. 根据权利要求11所述的显示设备,其中所述基板上设置有至少一间隔,且所述间隔位于所述弯折区。
  13. 根据权利要求11所述的显示设备,其中在所述基板远离所述柔性层的表面上设置有至少一凹槽,且所述凹槽位于所述弯折区。
  14. 根据权利要求13所述的显示设备,其中所述凹槽的宽度与所述柔性发光面板处于展平状态下的所述弯折区的水平宽度相同。
  15. 根据权利要求10所述的显示设备,其中所述金属材料为延性金属。
  16. 一种柔性发光面板,其包括:
    从下至上依次层叠设置的基板、柔性层、发光器件、偏光片及盖板;其中,
    所述基板为由金属材料制成的基板,其中所述柔性发光面板包括至少一弯折区,所述金属材料为延性金属。
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