WO2020168822A1 - 一种电致发光显示面板及其制备方法、显示装置 - Google Patents

一种电致发光显示面板及其制备方法、显示装置 Download PDF

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Publication number
WO2020168822A1
WO2020168822A1 PCT/CN2019/128275 CN2019128275W WO2020168822A1 WO 2020168822 A1 WO2020168822 A1 WO 2020168822A1 CN 2019128275 W CN2019128275 W CN 2019128275W WO 2020168822 A1 WO2020168822 A1 WO 2020168822A1
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Prior art keywords
pixel
elastic
bending
layer
area
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PCT/CN2019/128275
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English (en)
French (fr)
Inventor
贾聪聪
张晓晋
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京东方科技集团股份有限公司
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Priority to US16/958,829 priority Critical patent/US11482138B2/en
Publication of WO2020168822A1 publication Critical patent/WO2020168822A1/zh

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    • 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
    • H10K59/30—Devices specially adapted for multicolour light emission
    • H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
    • H10K59/352—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels the areas of the RGB subpixels being different
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • 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
    • 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
    • H10K59/122—Pixel-defining structures or layers, e.g. banks
    • 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
    • H10K59/124—Insulating layers formed between TFT elements and OLED elements
    • 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
    • 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
    • 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
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/84—Passivation; Containers; Encapsulations
    • H10K50/844—Encapsulations
    • 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
    • H10K71/80—Manufacture or treatment specially adapted for the organic devices covered by this subclass using temporary substrates
    • 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
    • H10K71/821—Patterning of a layer by embossing, e.g. stamping to form trenches in an insulating layer
    • 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

  • This application relates to an electroluminescent display panel, a preparation method thereof, and a display device.
  • OLED Organic Light-Emitting Diode
  • LCD liquid crystal display
  • An electroluminescent display panel includes a bending area and a non-bending area.
  • a plurality of first pixels arranged in an array are arranged in the non-bending area, and a plurality of arrays are arranged in the bending area.
  • the opening area of the second pixel is smaller than the opening area of the first pixel; in the bending area, the second pixel in the direction perpendicular to the bending axis
  • the gap is provided with at least one elastic region whose extending direction is consistent with the direction of the bending axis, and the insulating composite film layer in each of the elastic regions has a groove.
  • the insulating composite film layer includes a flat layer and a flat layer. The above pixel definition layer; the grooves are filled with elastic components, and the elastic modulus of the elastic components is greater than the elastic modulus of the flat layer.
  • a plurality of first pixels are arranged in an array with uniform distribution and a fixed opening area of the first pixel. Since the opening area of the second pixel is smaller than the opening area of the first pixel, the entire electroluminescence The area of the area for arranging the second pixel in the light-emitting display panel is reduced, so as to ensure that there is a certain space in the bending area to set the elastic area, and since there are grooves in the insulating composite film in each elastic area, the grooves are filled There are elastic components, and the elastic modulus of the elastic component is greater than that of the flat layer, so that the elastic area has better bending performance than other parts of the bending area, thereby improving the entire electroluminescent display when bending The bendability of the panel can improve the problem of device breakage caused by bending and improve the product yield.
  • the flat layer in the elastic region, has a first groove, and the pixel definition layer has a through hole; or, in the elastic region, the flat layer has a first groove.
  • the opening area of the second pixel that is closer to the bending axis gradually decreases, and the groove that is closer to the bending axis
  • the opening area of is gradually increased; or, in the bending area, the opening area of each second pixel is the same, and the opening area of each groove is the same.
  • the bending area is further provided with a third pixel having the same opening area as the first pixel, and each group of third pixels and grooves along a direction consistent with the direction of the bending axis Are alternately arranged at the gaps of the second pixels of each group in a direction consistent with the direction of the bending axis.
  • the first pixel and the second pixel are respectively connected to different driving chips.
  • the material of the flat layer is polyimide
  • the material of the elastic member is modified polyimide
  • the material of the elastic member is the same as the material of the flexible packaging film layer.
  • the present application also provides a display device, which includes the electroluminescent display panel according to any one of the above technical solutions.
  • the present application also provides a method for manufacturing the electroluminescent display panel according to any one of the above technical solutions, including:
  • the elastic member is filled in the groove.
  • forming the trench in the insulating composite film layer composed of the flat layer and the pixel defining layer in the elastic region specifically includes:
  • a pixel definition layer having a second groove or a through hole is formed in the elastic region.
  • filling the elastic member in the groove includes:
  • the elastic member is formed separately in the groove; or, the elastic member is formed in the groove while forming the flexible packaging film layer.
  • FIG. 1 is a schematic diagram of the structure of an electroluminescent display panel provided by this application.
  • 2a-2c are schematic diagrams of the distribution of pixels in the bending area of the electroluminescent display panel provided by this application;
  • 3a-3f are schematic diagrams of the state of the preparation method of the electroluminescent display panel provided by this application.
  • FIG. 4 is a flowchart of a manufacturing method of an electroluminescent display panel provided by this application.
  • the present application provides an electroluminescent display panel, a preparation method thereof, and a display device.
  • the bending area of the electroluminescent display panel has an elastic region. By filling the elastic member in the elastic region, the performance of the electroluminescent display panel is improved. The degree of bending can improve the problem of device fracture caused by bending and improve the product yield.
  • an electroluminescent display panel includes a non-bending area 100 and a bending area 200.
  • the non-bending area 100 is provided with a plurality of first pixels 400 arranged in an array.
  • the bending area 200 is provided with a plurality of second pixels 500 arranged in an array, and the opening area of the second pixels 500 is smaller than the opening area of the first pixels 400; in the bending area 200, the second pixels 500 and
  • the gap in the direction perpendicular to the bending axis is provided with at least one elastic region 300 whose extending direction is consistent with the direction of the bending axis.
  • the insulating composite film layer 310 in each elastic region 300 has a groove 311, and the insulating composite film layer 310 includes a flat layer 312 and a pixel definition layer 313 located on the flat layer 312; the groove 311 is filled with an elastic component 314, and the elastic modulus of the elastic component 314 is greater than that of the flat layer 312.
  • the bending axis direction is the longitudinal direction
  • at least one elastic region 300 whose extension direction is the longitudinal direction is provided at the gap of the second pixel 500 in the lateral direction.
  • the direction of the bending axis is transverse
  • at least one elastic region 300 whose extension direction is transverse is provided at the gap of the second pixel 500 along the longitudinal direction.
  • the plurality of first pixels 400 are arranged in an array, the distribution is uniform, and the opening area of the first pixel 400 is fixed. Since the opening area of the second pixel 500 is smaller than the opening area of the first pixel 400, As a result, the area of the area for arranging the second pixel 500 in the entire electroluminescent display panel is reduced, so as to ensure that there is a certain space in the bending area 200 for the elastic area 300, and because the insulating composite film layer 310 in each elastic area 300 There is a groove 311 in the groove 311, and the elastic component 314 is filled in the groove 311, and the elastic modulus of the elastic component 314 is greater than the elastic modulus of the flat layer 312, so that the elastic region 300 can be bent compared to other parts of the bending region 200 The folding performance is better, thereby improving the bendability of the entire electroluminescent display panel when bending, improving the problem of device breakage caused by bending, and improving the product yield.
  • the structure of the groove 311 can be in the following two ways:
  • the flat layer 312 has a first groove 3111
  • the pixel definition layer 313 has a through hole 3113
  • the groove 311 includes a first groove 3111 and a through hole 3113;
  • the flat layer 312 has a first groove 3111
  • the pixel definition layer 313 has a second groove 3112
  • the groove 311 includes a first groove 3111 and a second groove 3112.
  • the opening area of the second pixel 500 by setting the opening area of the second pixel 500 to be smaller than the opening area of the first pixel 400, the opening area of the second pixel 500 of the organic light emitting diode is further reduced, so that the bending area 200 can be
  • the area used to form the elastic region 300 increases, and the increase in the area of the elastic region 300 can make the area for buffering the bending stress during bending larger, improve the bendability of the elastic region 300, and thereby When improving the flexibility of the entire electroluminescent display panel.
  • the distribution of the opening area of the second pixel 500 may adopt the following manner:
  • Manner 1 As shown in FIG. 2a, in the bending area 210, the opening area of the second pixel 510 closer to the bending axis gradually decreases, and the opening area of the trench 311 closer to the bending axis gradually increases , That is, the area of the elastic region 310 gradually increases.
  • the opening area of the second pixel 510 of the bending area 210 decreases in the direction close to the bending axis, and the first pixel 400 of the non-bending area 100 in the entire electroluminescent display panel
  • the opening area is fixed, the opening area of the second pixel 510 adjacent to the first pixel 400 of the non-bending area 100 in the bending area 210 is the largest, and the second pixel 510 located at the center of the bending area 210 has the smallest opening area.
  • the area of the elastic area 310 closest to the non-bending area 100 in the bending area 210 is the smallest, and the area of the elastic area 310 located at the center of the bending area 210 is the largest, because the bending area 210 is The central position bears the largest bending deformation.
  • the elastic area 310 at the center of the bending area 210 to have the largest area, the bending stress can be buffered to a greater extent, and the bending area 210 can be uniformly stressed during bending. , The bendability of the elastic area 310 is improved, and the service life of the electroluminescent display panel is improved.
  • Manner 2 As shown in FIG. 2b, in the bending area 220, the opening area of each second pixel 520 is the same, the elastic area 320 is provided between adjacent second pixels 520, and the opening area of each trench 311 is the same.
  • the opening area of the second pixel 520 in the bending area 220 is set to be the same, and the opening area of the second pixel 520 in the bending area 220 is smaller than that of the first pixel in the non-bending area 120 420, the same size elastic area 320 is arranged between the second pixels 520 of the adjacent bending area 220.
  • the second pixels 520 and the elastic area 320 are spaced apart in the bending area 220, which can be used in the electroluminescent display panel. It is easy to prepare during the preparation process, and can conveniently control the overall brightness of the bending area 220, and it is easy to achieve uniform overall brightness in the bending area 220.
  • a third pixel 532 having the same opening area as the first pixel is also provided in the bending area 230 .
  • the elastic region 330 is provided between two adjacent groups of second pixels 531 in a direction consistent with the direction of the bending axis, and the third pixels 532 and grooves 311 of each group of third pixels 532 and grooves 311 in the direction consistent with the direction of the bending axis are alternately arranged in At the gaps of the second pixels 531 of each group along the direction consistent with the direction of the bending axis.
  • the third pixels 532 and the grooves 311 in each column in the longitudinal direction are alternately arranged at the gaps of the second pixels 531 in the longitudinal direction.
  • the direction of the bending axis is transverse
  • the rows of third pixels 532 and grooves 311 in the transverse direction are alternately arranged at the gaps of the rows of second pixels 531 in the transverse direction.
  • two adjacent columns of second pixels 531 can be set to pixels of the same color, and each second pixel 531 is set to roughly half the opening area of the third pixel 532, so that adjacent The color effect of the area composed of the two columns of second pixels 531 can be roughly equivalent to the color effect when the elastic area 330 is not provided in the original position, thereby avoiding the color discontinuity of the display image of the electroluminescent display panel caused by the setting of the elastic area 330 , This setting method can better guarantee the display effect.
  • the opening area of the second pixel 531 is not greater than the opening area of the first pixel 400.
  • the second pixel 531 with a small opening area should increase the current density, thereby increasing the brightness.
  • the aperture area of the pixel at the middle position of the bending region 230 should be controlled, and the aperture area of the pixel at the middle position of the bending region 230 is minimized. This is 30% of the opening area of the first pixel 400.
  • the first pixel 400 and the second pixel 500 are respectively connected to different driving chips.
  • the opening area of the second pixel 500 is different from the opening area of the first pixel 400, it is easy to realize the control of pixels with different opening areas by setting different driving chips, and driving by a driving chip
  • the bending area 200 controls the density of the first pixel 400 to increase the brightness, ensuring that the brightness of the bending area 200 is the same, and the non-bending area 100 is controlled by another driver chip, and the current of the second pixel 500 is controlled to ensure the non-bending
  • the brightness of the folding area 100 is the same, and different driving chips operate independently of each other to ensure the color continuity and brightness uniformity of the entire electroluminescent display panel.
  • the material of the flat layer 312 is polyimide
  • the material of the elastic member 314 is modified polyimide.
  • the groove 311 is filled with the elastic member. 314, and the modulus of elasticity of the modified polyimide is greater than that of polyimide, so that the bendability of the groove 311 filled with the elastic component 314 in the elastic region 300 is the same as the bendability of the flat layer 312 The performance is different.
  • the material of the elastic component 314 can be modified polyimide, carbon fiber, or other materials that can meet the above requirements, and the modified polyimide can be random block copolycondensation polyimide.
  • PI/MWNTs Aminated polyimide/multi-wall carbon nanotubes
  • polyimides containing benzoxazole structural units silicon carbide reinforced polyimides, graphene/polyimides Wait.
  • the material of the elastic component 314 is the same as the material of the flexible packaging film layer. Since the elastic modulus of the material of the flexible packaging film layer is greater than the elastic modulus of the material for preparing the flat layer 312, the groove 311 is prepared during preparation. It does not need to be filled in advance, just directly prepare the flexible packaging film layer.
  • the flat layer 312 can also be made of other materials. After the material of the flat layer 312 is selected, it is only necessary to limit the elastic modulus of the elastic member 314 to be greater than that of the material of the flat layer 312. The elastic modulus improves the bendable performance of the bending area 200, thereby improving the bendable performance of the entire electroluminescent display panel.
  • the present application also provides a display device, which includes the electroluminescent display panel of any one of the above technical solutions.
  • the display device since the bending area of the electroluminescent display panel has an elastic area, by filling the elastic member in the elastic area, the bendability of the electroluminescent display panel is improved, and the device fracture caused by bending is improved.
  • the problem is to increase the product yield. Therefore, the display device with the electroluminescent display panel has better bendability and higher product yield.
  • the present application also provides a method for manufacturing an electroluminescent display panel according to any one of the above technical solutions, including:
  • Step S401 while forming the flat layer 312 and the pixel defining layer 313 in sequence, a trench 311 is formed in the insulating composite film layer 310 composed of the flat layer 312 and the pixel defining layer 312 in the elastic region 300;
  • step S402 the elastic member 314 is filled in the groove 311.
  • a flexible substrate 202 is fabricated on a rigid substrate 201, which can be flat.
  • the flexible substrate 202 can be made of polyimide, polyethylene, polypropylene, polystyrene, polyethersulfone resin, polyethylene terephthalate, and polyethylene terephthalate.
  • One or more mixtures of ethylene phthalate, polycarbonate, polyarylate, and fiber reinforced plastics are deposited on the rigid substrate 201 to form the flexible substrate 202, and the flexible substrate
  • a thin film transistor circuit 203 for controlling the operation of the pixel is prepared on 202; then, through step S401, as shown in FIGS. 3a to 3c, a flat layer 312 is prepared on the thin film transistor circuit 203 for flattening, and the flat layer 312 serves as an insulating layer.
  • the effect is to reduce the interference between the anode and the thin film transistor circuit 203, and then the anode layer 204 is formed.
  • the material of the anode layer 204 can be ITO (Indium Tin Oxide).
  • the pixel definition layer 313 is prepared. And a trench 311 is formed in the insulating composite film layer 310 composed of the flat layer 312 and the pixel definition layer 313, and then through step S402, the trench 311 is filled with the elastic member 314, and finally, as shown in FIG.
  • the organic layer 205, the cathode layer 206 and the flexible packaging layer 207 are packaged, the rigid substrate 201 is peeled off, and then the film material 208 is assembled and other processes, so that a flexible and bendable electroluminescent display panel is manufactured.
  • forming the trench 311 in the insulating composite film layer 310 composed of the flat layer 312 and the pixel definition layer 312 in the elastic region 300 specifically includes:
  • a pixel definition layer 313 having a second groove 3112 or a through hole 3113 is formed in the elastic region 300.
  • the first groove 3111 is first formed on the flat layer 312, and then the pixel defining layer 313 is prepared, and in order to facilitate the second groove 3112 or In the preparation of the through hole 3113, a mask can be added during the preparation of the pixel definition layer 313 to perform exposure, development, etching, and curing.
  • the second groove 3112 is formed by controlling the exposure amount at the first groove 3111 Or through hole 3113.
  • the material of the elastic member 314 can be modified polyimide
  • the bendability of the elastic region 300 is better than that of the flat layer 312, thereby improving the bendability of the bending region 200, thereby improving the bendability of the entire electroluminescent display panel In this way, the bendability of the elastic region 300 can be changed by changing the filling elastic component 314;
  • Method two while forming the flexible packaging film layer 207, an elastic member 314 is formed in the groove 311, and the first groove 3112 is not filled with other substances in advance, but the flexible packaging is directly performed
  • the film layer 207 is formed by using the material of the flexible packaging film layer 207 filled in the trench 311 as the elastic member 314.
  • the preparation process in this manner is simple and easy to implement.

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

Abstract

一种电致发光显示面板及其制备方法、显示装置，电致发光显示面板包括弯折区域(100)和非弯折区域(200)，非弯折区域(200)内设有多个呈阵列排布的第一像素(400)，弯折区域(100)内设有多个呈阵列排布的第二像素(500)，第二像素(500)的开口面积小于第一像素(400)的开口面积；在弯折区域(100)内，第二像素(500)的间隙处设置有延伸方向与弯折轴线方向一致的至少一个弹性区域(300)，在各弹性区域(300)内的绝缘复合膜层(310)内具有沟槽(311)，绝缘复合膜层(310)包括平坦层(312)和位于平坦层(312)之上的像素定义层(313)；沟槽(311)内填充有弹性部件(314)，弹性部件(314)的弹性模量大于平坦层(312)的弹性模量，弹性区域(300)相较于弯折区域(100)的其它部位，可弯折性能较好，从而在弯折时提高整个电致发光显示面板的可弯曲程度，提升产品良率。

Description

一种电致发光显示面板及其制备方法、显示装置
相关申请的交叉引用
本申请要求于2019年2月22日提交的中国专利申请第201910131823.0号的优先权，该申请的公开通过引用被全部合并于此。
技术领域
本申请涉及一种电致发光显示面板及其制备方法、显示装置。
背景技术
在显示技术领域，有机发光二极管(Organic Light-Emitting Diode，OLED)显示器以其轻薄、自发光、驱动电压低、发光效率高、响应速度快、广视角、色彩丰富及高亮度、低功耗、耐高低温等众多优点而被业界公认为是继液晶显示器(LCD)之后的第三代显示技术。
随着有机发光二极管技术的发展，利用有机发光二极管的柔性优势而制作出来的柔性显示屏成为近年来研究的热点并逐渐商业化。目前已有厂商制造出可弯折的有机发光二极管屏幕，但是在有机发光二极管屏幕的测试及使用过程中存在弯折区域容易出现破损的问题，一方面影响了用户的观赏体验，另一方面导致有机发光二极管显示器的使用寿命较短。
因此，本申请提供一种具有较好弯折性能的电致发光显示面板及其制备方法显得尤为重要。
发明内容
本申请提供以下技术方案：
一种电致发光显示面板，包括弯折区域和非弯折区域，所述非弯折区域内设有多个呈阵列排布的第一像素，所述弯折区域内设有多个呈阵列排布的第二像素，所述第二像素的开口面积小于所述第一像素的开口面积；在所述弯折区域内，在所述第二像素沿与弯折轴线方向垂直的方向上的间隙处设置有延伸方向与弯折轴线方向一致的至少一个弹性区域，在各所述弹性区域内的绝缘复合膜层内具有沟槽，所述绝缘复合膜层包括平坦层和位于所述平坦层之上的像素定义层；所述沟槽内填充有弹性部件，所述弹性部件的弹性模量大于所述平坦层的弹性模量。
在上述电致发光显示面板中，多个第一像素呈阵列排布，分布均匀且第一像素的开口 面积固定，而由于第二像素的开口面积小于第一像素的开口面积，使得整个电致发光显示面板中用于布置第二像素的区域面积缩小，从而保证弯折区域内具有一定的空间设置弹性区域，而由于在各弹性区域内的绝缘复合膜层内具有沟槽，沟槽内填充有弹性部件，且弹性部件的弹性模量大于平坦层的弹性模量，使得弹性区域相较于弯折区域的其它部位，可弯折性能较好，从而在弯折时提高整个电致发光显示面板的可弯曲程度，改善因弯曲而导致的器件断裂的问题，提升产品良率。
根据本申请的一些实施例，在所述弹性区域内，所述平坦层具有第一凹槽，所述像素定义层具有通孔；或，在所述弹性区域内，所述平坦层具有第一凹槽，所述像素定义层具有第二凹槽。
根据本申请的一些实施例，在所述弯折区域内，距离所述弯折轴线越近的所述第二像素的开口面积逐渐减小，距离所述弯折轴线越近的所述沟槽的开口面积逐渐增大；或，在所述弯折区域内，各所述第二像素的开口面积一致，各所述沟槽的开口面积一致。
根据本申请的一些实施例，所述弯折区域内还设有与所述第一像素的开口面积相同的第三像素，沿与弯折轴线方向一致的方向的各组第三像素和沟槽交替设置在沿与弯折轴线方向一致的方向的各组第二像素的所述间隙处。
根据本申请的一些实施例，所述第一像素和所述第二像素分别连接不同的驱动芯片。
根据本申请的一些实施例，所述平坦层的材料为聚酰亚胺，所述弹性部件的材料为改性聚酰亚胺。
根据本申请的一些实施例，所述弹性部件的材料与柔性封装膜层的材料相同。
另外，本申请还提供了一种显示装置，该显示装置包括上述任一项技术方案所述的电致发光显示面板。
另外，本申请还提供了一种如上述任一项技术方案所述的电致发光显示面板的制备方法，包括：
依次形成平坦层和像素定义层的同时，在弹性区域内的由所述平坦层和像素定义层构成的绝缘复合膜层内形成所述沟槽；
在所述沟槽内填充所述弹性部件。
根据本申请的一些实施例，在弹性区域内的由所述平坦层和像素定义层构成的绝缘复合膜层内形成所述沟槽，具体包括：
形成在所述弹性区域内具有第一凹槽的平坦层；
形成在所述弹性区域内具有第二凹槽或通孔的像素定义层。
根据本申请的一些实施例，在所述沟槽内填充所述弹性部件，包括：
在所述像素定义层制作完成后，仅在所述沟槽内单独形成所述弹性部件；或，在形成柔性封装膜层的同时在所述沟槽内形成所述弹性部件。
附图说明
图1为本申请提供的一种电致发光显示面板的结构示意图；
图2a-2c为本申请提供的电致发光显示面板中弯折区域像素的分布示意图；
图3a-3f为本申请提供的电致发光显示面板的制备方法的状态示意图；
图4为本申请提供的一种电致发光显示面板的制备方法的流程图。
具体实施方式
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，本领域普通技术人员在没有做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。
本申请提供一种电致发光显示面板及其制备方法、显示装置，该电致发光显示面板的弯折区域内具有弹性区域，通过在弹性区域内填充弹性部件，提升电致发光显示面板的可弯曲程度，改善因弯曲而导致的器件断裂的问题，提升产品良率。
如图1所示以及图3f所示，一种电致发光显示面板，包括非弯折区域100和弯折区域200，非弯折区域100内设有多个呈阵列排布的第一像素400，弯折区域200内设有多个呈阵列排布的第二像素500，第二像素500的开口面积小于第一像素400的开口面积；在弯折区域200内，在第二像素500沿与弯折轴线方向垂直的方向上的间隙处设置有延伸方向与弯折轴线方向一致的至少一个弹性区域300，在各弹性区域300内的绝缘复合膜层310内具有沟槽311，绝缘复合膜层310包括平坦层312和位于平坦层312之上的像素定义层313；沟槽311内填充有弹性部件314，弹性部件314的弹性模量大于平坦层312的弹性模量。例如，如果弯折轴线方向为纵向，则在第二像素500沿横向方向上的间隙处设置延伸方向为纵向的至少一个弹性区域300。又例如，如果弯折轴线方向为横向，则在第二像素500沿纵向方向上的间隙处设置延伸方向为横向的至少一个弹性区域300。
在上述电致发光显示面板中，多个第一像素400呈阵列排布，分布均匀且第一像素400的开口面积固定，而由于第二像素500的开口面积小于第一像素400的开口面积，使得整个电致发光显示面板中用于布置第二像素500的区域面积缩小，从而保证弯折区域200内具有一定的空间设置弹性区域300，而由于在各弹性区域300内的绝缘复合膜层310内具 有沟槽311，沟槽311内填充有弹性部件314，且弹性部件314的弹性模量大于平坦层312的弹性模量，使得弹性区域300相较于弯折区域200的其它部位，可弯折性能较好，从而在弯折时提高整个电致发光显示面板的可弯曲程度，改善因弯曲而导致的器件断裂的问题，提升产品良率。
例如在设置时，沟槽311的结构形式可以有以下两种方式：
方式一，如图3c2所示，在弹性区域300内，平坦层312具有第一凹槽3111，像素定义层313具有通孔3113，沟槽311包括第一凹槽3111和通孔3113；
方式二，如图3c1所示，在弹性区域300内，平坦层312具有第一凹槽3111，像素定义层313具有第二凹槽3112，沟槽311包括第一凹槽3111和第二凹槽3112。
在上述电致发光显示面板中，通过将第二像素500的开口面积设置为小于第一像素400的开口面积，进一步减少有机发光二极管第二像素500的开口面积，从而使得弯折区域200内能够用于形成弹性区域300的面积增大，而弹性区域300的面积增大可以使得用于在弯折时缓冲弯折应力的区域较大，提高弹性区域300的可弯折性能，从而在弯折时提高整个电致发光显示面板的可弯曲程度。
例如在设置时，第二像素500的开口面积的分布可以采用以下方式：
方式一：如图2a所示，在弯折区域210内，距离弯折轴线越近的第二像素510的开口面积逐渐减小，距离弯折轴线越近的沟槽311的开口面积逐渐增大，即弹性区域310的面积逐渐增大。
在上述电致发光显示面板中，弯折区域210的第二像素510的开口面积沿靠近弯折轴线的方向依次减小，整个电致发光显示面板中非弯折区域100的第一像素400的开口面积固定，弯折区域210内与非弯折区域100的第一像素400相邻的第二像素510的开口面积最大，而位于弯折区域210中心位置的第二像素510的开口面积最小，相应地，弯折区域210内与非弯折区域100最接近的弹性区域310的面积最小，而位于弯折区域210中心位置的弹性区域310的面积最大，由于在弯折时，弯折区域210中心位置所承受的弯折变形最大，通过将位于弯折区域210中心位置的弹性区域310设置成面积最大，以较大限度地缓冲弯折应力，保证在弯折时弯折区域210受力均匀，提升弹性区域310的可弯折性能，进而提高电致发光显示面板的使用寿命。
方式二：如图2b所示，在弯折区域220内，各第二像素520的开口面积一致，相邻的第二像素520之间设置弹性区域320，各沟槽311的开口面积一致。
在上述电致发光显示面板中，通过将弯折区域220的第二像素520的开口面积设置成一样，并且弯折区域220的第二像素520的开口面积小于非弯折区域120的第一像素420 的开口面积，相邻的弯折区域220的第二像素520之间设置同样大小的弹性区域320，弯折区域220内第二像素520与弹性区域320间隔分布，能够在电致发光显示面板的制备过程中便于制备，并且能够方便控制弯折区域220的整体亮度，容易实现弯折区域220内整体亮度均匀。
为了保证整个电致发光显示面板的显示画面的色彩连续性，根据本申请的实施方式，如图2c所示，弯折区域230内还设有与第一像素的开口面积相同的第三像素532，沿与弯折轴线方向一致的方向的相邻的两组第二像素531之间设置弹性区域330，沿与弯折轴线方向一致的方向的各组第三像素532和沟槽311交替设置在沿与弯折轴线方向一致的方向的各组第二像素531的间隙处。例如，如果弯折轴线方向为纵向，则沿纵向方向的各列第三像素532和沟槽311交替设置在沿纵向方向的各列第二像素531的间隙处。又例如，如果弯折轴线方向为横向，则沿横向方向的各行第三像素532和沟槽311交替设置在沿横向方向的各行第二像素531的间隙处。
在上述电致发光显示面板中，可以将相邻的两列第二像素531设置成相同颜色的像素，将每一第二像素531大致设置成第三像素532开口面积的一半，使得相邻的两列第二像素531组成区域的颜色效果可以大致相当于原有位置未设置弹性区域330时的颜色效果，从而避免因弹性区域330的设置而导致电致发光显示面板的显示画面的色彩不连续，这种设置方法能够较好地保证显示效果。
在上述电致发光显示面板中第二像素531的开口面积不大于第一像素400的开口面积，为保证显示亮度的均匀性，开口面积小的第二像素531应提高电流密度，进而提升亮度。但为了为避免因电流过大而导致的第二像素531烧坏，应控制弯折区域230中间位置处的像素的开口面积的大小，弯折区域230中间位置处的像素的开口面积最大减小为第一像素400的开口面积的30％。
为了保证整个电致发光显示面板的显示画面的亮度均匀性，根据本申请的实施方式，第一像素400和第二像素500分别连接不同的驱动芯片。
在上述电致发光显示面板中，由于第二像素500的开口面积和第一像素400的开口面积不同，通过设置不同的驱动芯片能够便于实现对不同开口面积的像素的控制，通过一驱动芯片驱动弯折区域200，控制第一像素400的密度，进而提升亮度，保证弯折区域200的亮度相同，通过另一驱动芯片控制非弯折区域100，控制第二像素500的电流大小，保证非弯折区域100的亮度相同，不同的驱动芯片相互独立运作，以保证整个电致发光显示面板显示画面的色彩连续性，亮度均匀性。
根据本申请的实施方式，平坦层312的材料为聚酰亚胺，弹性部件314的材料为改性 聚酰亚胺，在上述电致发光显示面板的中，通过在沟槽311内填充弹性部件314，且改性聚酰亚胺的弹性模量大于聚酰亚胺的弹性模量，使得弹性区域300内填充弹性部件314的沟槽311处的可弯折性能与平坦层312的可弯折性能不同。
该弹性部件314的材料可以为改性聚酰亚胺，也可以为碳纤维，还可以为能够满足上述需求的其他材料，而改性聚酰亚胺可以选择无规嵌段共缩聚聚酰亚胺、氨基化的聚酰亚胺/多壁碳纳米管(PI/MWNTs)纳米复合材料、含苯并噁唑结构单元聚酰亚胺、碳化硅增强聚酰亚胺、石墨烯/聚酰亚胺等。
根据本申请的实施方式，弹性部件314的材料与柔性封装膜层的材料相同，由于柔性封装膜层的材料的弹性模量大于制备平坦层312的材料的弹性模量，在制备时沟槽311内无需事先进行填充，只需直接制备柔性封装膜层即可。
当然，平坦层312除了可以采用聚酰亚胺制备以外，还可以采用其它材质制备，在选定平坦层312的材质后，只需限定弹性部件314的弹性模量大于制备平坦层312的材料的弹性模量，从而提高弯折区域200的可弯折性能，进而提高整个电致发光显示面板的可弯折性能。
另外，本申请还提供了一种显示装置，该显示装置包括上述任一项技术方案的电致发光显示面板。
在上述显示装置中，由于电致发光显示面板的弯折区域内具有弹性区域，通过在弹性区域内填充弹性部件，提升电致发光显示面板的可弯曲程度，改善因弯曲而导致的器件断裂的问题，提升产品良率，因此，具有该电致发光显示面板的显示装置的可弯折性能较好，产品良率较高。
另外，如图3a-图3c、图3e以及图4所示，本申请还提供了一种上述任一项技术方案的电致发光显示面板的制备方法，包括：
步骤S401，依次形成平坦层312和像素定义层313的同时，在弹性区域300内的由平坦层312和像素定义层312构成的绝缘复合膜层310内形成沟槽311；
步骤S402，在沟槽311内填充弹性部件314。
在上述电致发光显示面板的制备方法中，为了通过改变用于承载有机层205、阴极层206以及柔性封装层207的基底的特性，不同位置基底的弯折性能不同，从而提高整个电致发光显示面板的可弯曲程度，改善因弯曲而导致的器件断裂的问题，具体过程为：首先，在一刚性衬底201上进行柔性衬底202的制作，该刚性衬底201可为平整度较好的金属板、亚克力板、玻璃等，该柔性衬底202材料可为聚酰亚胺、聚乙烯、聚丙烯、聚苯乙烯、聚醚砜树脂、聚对萘二甲酸乙二醇酯、聚对苯二甲酸乙二醇酯、聚碳酸酯、聚芳酯、纤维 强化塑料中的一种或多种混合物，通过在刚性衬底201上沉积上述材料以形成柔性衬底202，并在柔性衬底202上制备用于控制像素工作的薄膜晶体管电路203；然后，通过步骤S401，如图3a-图3c所示，在薄膜晶体管电路203上方制备平坦层312进行平坦化，平坦层312起到绝缘的作用，减小阳极与薄膜晶体管电路203间的干扰，接着形成阳极层204，其中，阳极层204材料可为ITO(氧化铟锡)，待阳极层204制备完成后进行像素定义层313的制备，并在由平坦层312和像素定义层313构成的绝缘复合膜层310内形成沟槽311，然后，通过步骤S402，在沟槽311内填充弹性部件314，最后，如图3e所示，依次形成有机层205、阴极层206以及柔性封装层207，封装完成后将刚性衬底201剥离，然后进行膜材208组装等工序，从而一个柔性可弯折的电致发光显示面板制作完成。
根据本申请的实施方式，在弹性区域300内的由平坦层312和像素定义层312构成的绝缘复合膜层310内形成沟槽311，具体包括：
形成在弹性区域300内具有第一凹槽3111的平坦层312；
形成在弹性区域300内具有第二凹槽3112或通孔3113的像素定义层313。
在上述电致发光显示面板的制备方法中，如图3b以及图3c所示，首先在平坦层312上制备第一凹槽3111，接着制备像素定义层313，而为了方便第二凹槽3112或通孔3113的制备，可在像素定义层313制备时增加一道掩模版，进行曝光、显影、刻蚀、固化，通过对第一凹槽3111处的曝光量的控制，形成该第二凹槽3112或通孔3113。
根据本申请的实施方式，在沟槽311内填充弹性部件314的方式可以有以下两种：
方式一，在像素定义层313制作完成后，如图3d所示，仅在沟槽311内单独形成弹性部件314，通过预先填充弹性部件314，该弹性部件314材料可以为改性聚酰亚胺等物质，使得弹性区域300的可弯折性能相比平坦层312的可弯折性能较好，从而提高弯折区域200的可弯折性能，进而提高整个电致发光显示面板的可弯折性能，这种方式能够通过改变填充弹性部件314的不同而改变弹性区域300的可弯折性能；
方式二，如图3e所示，在形成柔性封装膜层207的同时在沟槽311内形成弹性部件314，通过在第一凹槽3112内不预先进行其他物质的填充，而是直接进行柔性封装膜层207的形成，通过填充在沟槽311内的柔性封装膜层207的材料作为弹性部件314，这种方式的制备过程简单，易于实现。
显然，本领域的技术人员可以对本申请实施例进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (11)

  1. 一种电致发光显示面板，包括弯折区域和非弯折区域，所述非弯折区域内设有多个呈阵列排布的第一像素，所述弯折区域内设有多个呈阵列排布的第二像素，所述第二像素的开口面积小于所述第一像素的开口面积；在所述弯折区域内，在所述第二像素沿与弯折轴线方向垂直的方向上的间隙处设置有延伸方向与弯折轴线方向一致的至少一个弹性区域，在各所述弹性区域内的绝缘复合膜层内具有沟槽，所述绝缘复合膜层包括平坦层和位于所述平坦层之上的像素定义层；所述沟槽内填充有弹性部件，所述弹性部件的弹性模量大于所述平坦层的弹性模量。
  2. 根据权利要求1所述的电致发光显示面板，其中，在所述弹性区域内，所述平坦层具有第一凹槽，所述像素定义层具有通孔；或，
    在所述弹性区域内，所述平坦层具有第一凹槽，所述像素定义层具有第二凹槽。
  3. 根据权利要求1所述的电致发光显示面板，其中，在所述弯折区域内，距离所述弯折轴线越近的所述第二像素的开口面积逐渐减小，距离所述弯折轴线越近的所述沟槽的开口面积逐渐增大；或，
    在所述弯折区域内，各所述第二像素的开口面积一致，各所述沟槽的开口面积一致。
  4. 根据权利要求1所述的电致发光显示面板，其中，所述弯折区域内还设有与所述第一像素的开口面积相同的第三像素，沿与弯折轴线方向一致的方向的各组第三像素和沟槽交替设置在沿与弯折轴线方向一致的方向的各组第二像素的所述间隙处。
  5. 根据权利要求1所述的电致发光显示面板，其中，所述第一像素和所述第二像素分别连接不同的驱动芯片。
  6. 根据权利要求1所述的电致发光显示面板，其中，所述平坦层的材料为聚酰亚胺，所述弹性部件的材料为改性聚酰亚胺。
  7. 根据权利要求1所述的电致发光显示面板，其中，所述弹性部件的材料与柔性封装膜层的材料相同。
  8. 一种显示装置，包括如权利要求1-7中任一项所述的电致发光显示面板。
  9. 一种电致发光显示面板的制备方法，所述电致发光显示面板包括弯折区域和非弯折区域，所述非弯折区域内设有多个呈阵列排布的第一像素，所述弯折区域内设有多个呈阵列排布的第二像素，所述第二像素的开口面积小于所述第一像素的开口面积；在所述弯折区域内，在所述第二像素沿与弯折轴线方向垂直的方向上的间隙处设置有延伸方向与弯折轴线方向一致的至少一个弹性区域，在各所述弹性区域内的绝缘复合膜层内具有沟槽， 所述绝缘复合膜层包括平坦层和位于所述平坦层之上的像素定义层；所述沟槽内填充有弹性部件，所述弹性部件的弹性模量大于所述平坦层的弹性模量，所述制备方法包括：
    在依次形成平坦层和像素定义层的同时，在弹性区域内的由所述平坦层和像素定义层构成的绝缘复合膜层内形成所述沟槽；
    在所述沟槽内填充所述弹性部件。
  10. 根据权利要求9所述的制备方法，其中，在弹性区域内的由所述平坦层和像素定义层构成的绝缘复合膜层内形成所述沟槽包括：
    形成在所述弹性区域内具有第一凹槽的平坦层；
    形成在所述弹性区域内具有第二凹槽或通孔的像素定义层。
  11. 根据权利要求9所述的制备方法，其中，在所述沟槽内填充所述弹性部件包括：
    在所述像素定义层制作完成后，仅在所述沟槽内单独形成所述弹性部件；或，
    在形成柔性封装膜层的同时在所述沟槽内形成所述弹性部件。
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Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109830184B (zh) 2019-02-22 2021-04-27 京东方科技集团股份有限公司 一种电致发光显示面板及其制备方法、显示装置
CN110071155A (zh) * 2019-04-26 2019-07-30 深圳市华星光电半导体显示技术有限公司 显示面板及其封装方法、显示装置
CN110264878A (zh) * 2019-06-14 2019-09-20 武汉华星光电半导体显示技术有限公司 可折叠显示面板及制作方法
CN110335887A (zh) * 2019-06-25 2019-10-15 武汉华星光电半导体显示技术有限公司 Oled显示面板
CN110264888B (zh) 2019-07-02 2022-11-04 京东方科技集团股份有限公司 背膜结构、显示面板及显示装置
CN210245501U (zh) * 2019-07-03 2020-04-03 昆山国显光电有限公司 阵列基板、显示面板及显示装置
TWI711856B (zh) 2019-07-19 2020-12-01 元太科技工業股份有限公司 顯示裝置
CN112242095B (zh) * 2019-07-19 2022-11-29 元太科技工业股份有限公司 显示装置
CN110571247B (zh) * 2019-08-15 2021-09-03 武汉华星光电半导体显示技术有限公司 显示面板和显示装置
CN110619819B (zh) * 2019-09-17 2021-07-13 Oppo广东移动通信有限公司 折叠屏及电子设备
CN110675753B (zh) * 2019-09-30 2022-06-03 昆山工研院新型平板显示技术中心有限公司 一种盖板、盖板的制备方法和柔性显示屏
CN110729417B (zh) * 2019-10-25 2022-07-29 京东方科技集团股份有限公司 显示基板及制造方法、显示装置
CN110767094A (zh) * 2019-11-12 2020-02-07 昆山工研院新型平板显示技术中心有限公司 一种柔性盖板和柔性显示屏
CN110853517A (zh) * 2019-11-21 2020-02-28 京东方科技集团股份有限公司 一种显示基板及其制备方法、显示装置
CN111106259B (zh) * 2019-12-04 2021-01-15 武汉华星光电半导体显示技术有限公司 可弯折有机发光二极管显示面板及有机发光二极管显示屏
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CN111081148B (zh) * 2019-12-25 2021-12-14 霸州市云谷电子科技有限公司 显示面板及显示装置
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CN113496979A (zh) * 2020-04-08 2021-10-12 深圳市柔宇科技有限公司 电子组件及其制备方法、电子设备
WO2023015488A1 (zh) * 2021-08-11 2023-02-16 京东方科技集团股份有限公司 显示基板及电子装置
CN114141828B (zh) * 2021-11-17 2024-02-06 深圳市华星光电半导体显示技术有限公司 显示面板、显示面板的制作方法以及显示装置
CN114913773B (zh) * 2022-05-11 2023-11-28 武汉华星光电半导体显示技术有限公司 可折叠显示面板

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103713436A (zh) * 2013-12-11 2014-04-09 京东方科技集团股份有限公司 一种柔性基板和显示装置
CN106601133A (zh) * 2017-02-28 2017-04-26 京东方科技集团股份有限公司 一种柔性显示面板、其制作方法及显示装置
CN106856206A (zh) * 2016-12-30 2017-06-16 上海天马微电子有限公司 一种柔性显示面板和柔性显示器
CN107204357A (zh) * 2017-07-05 2017-09-26 武汉华星光电半导体显示技术有限公司 一种柔性显示面板及其制备方法、柔性显示装置
US20180175310A1 (en) * 2016-10-17 2018-06-21 Samsung Display Co., Ltd. Display device and method of manufacturing the same
CN108807485A (zh) * 2018-06-25 2018-11-13 武汉天马微电子有限公司 一种显示面板及显示装置
CN109830184A (zh) * 2019-02-22 2019-05-31 京东方科技集团股份有限公司 一种电致发光显示面板及其制备方法、显示装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102399568B1 (ko) * 2015-09-23 2022-05-19 삼성디스플레이 주식회사 폴딩 가능한 디스플레이 장치 및 그 제조방법
CN106910823B (zh) * 2017-04-05 2019-08-06 上海天马微电子有限公司 一种柔性显示面板和柔性显示装置
CN108039120A (zh) * 2017-11-30 2018-05-15 武汉华星光电半导体显示技术有限公司 柔性显示面板及柔性显示器
CN108346377B (zh) * 2018-01-19 2020-09-04 昆山国显光电有限公司 一种柔性显示面板及其制作方法、显示装置
CN108539016B (zh) * 2018-03-29 2022-01-25 京东方科技集团股份有限公司 柔性衬底及其制备方法、显示面板的制备方法和显示装置
CN108598138B (zh) * 2018-06-26 2021-04-30 武汉天马微电子有限公司 显示面板及其制备方法和显示装置
CN108962026B (zh) * 2018-06-28 2020-05-19 武汉华星光电半导体显示技术有限公司 柔性显示装置
CN108922911A (zh) * 2018-07-31 2018-11-30 武汉天马微电子有限公司 一种显示面板及显示装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103713436A (zh) * 2013-12-11 2014-04-09 京东方科技集团股份有限公司 一种柔性基板和显示装置
US20180175310A1 (en) * 2016-10-17 2018-06-21 Samsung Display Co., Ltd. Display device and method of manufacturing the same
CN106856206A (zh) * 2016-12-30 2017-06-16 上海天马微电子有限公司 一种柔性显示面板和柔性显示器
CN106601133A (zh) * 2017-02-28 2017-04-26 京东方科技集团股份有限公司 一种柔性显示面板、其制作方法及显示装置
CN107204357A (zh) * 2017-07-05 2017-09-26 武汉华星光电半导体显示技术有限公司 一种柔性显示面板及其制备方法、柔性显示装置
CN108807485A (zh) * 2018-06-25 2018-11-13 武汉天马微电子有限公司 一种显示面板及显示装置
CN109830184A (zh) * 2019-02-22 2019-05-31 京东方科技集团股份有限公司 一种电致发光显示面板及其制备方法、显示装置

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