WO2020220401A1 - Plaque de couverture d'un panneau d'affichage pliable, panneau d'affichage pliable et dispositif d'affichage - Google Patents

Plaque de couverture d'un panneau d'affichage pliable, panneau d'affichage pliable et dispositif d'affichage Download PDF

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Publication number
WO2020220401A1
WO2020220401A1 PCT/CN2019/087326 CN2019087326W WO2020220401A1 WO 2020220401 A1 WO2020220401 A1 WO 2020220401A1 CN 2019087326 W CN2019087326 W CN 2019087326W WO 2020220401 A1 WO2020220401 A1 WO 2020220401A1
Authority
WO
WIPO (PCT)
Prior art keywords
area
bendable
glass substrate
cover plate
display panel
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2019/087326
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English (en)
Chinese (zh)
Inventor
汤威
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Original Assignee
Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
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 Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd filed Critical Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Publication of WO2020220401A1 publication Critical patent/WO2020220401A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • G09F9/301—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
    • 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

Definitions

  • the present invention relates to the field of display technology, in particular to a cover plate of a bendable display panel, a bendable display panel and a display device.
  • the cover plate of the prior art bendable display panel adopts the structure of adding a hard coating on the transparent PI, resulting in high cost, insufficient surface hardness, and poor hand feeling. Therefore, it is necessary to provide a new bendable display panel cover to improve this defect.
  • the present invention provides a cover plate of a bendable display panel, which is used to solve the problem of the cover plate of the bendable display panel in the prior art. Due to the structure of adding a hard coating on the transparent PI, the cost is higher and the surface hardness is higher. Insufficient technical problems with poor hand feel.
  • the embodiment of the present invention provides a cover plate of a bendable display panel, the cover plate includes a glass substrate, a recessed area is formed on the surface of the glass substrate, and the recessed area reduces the glass substrate to a bendable thickness And, the recessed area is filled with a flexible material to cooperate with the glass layer of the recessed area to form the bendable area of the cover plate.
  • the area outside the bendable area of the cover plate is the non-bending area, and the thickness of the glass substrate in the non-bending area is 0.5 mm to 1 mm.
  • the thickness of the glass substrate in the bendable area ranges from 0.03 mm to 0.1 mm.
  • the sum of the thickness of the flexible material and the glass layer in the recessed area is equal to the thickness of the glass substrate in the non-bending area.
  • the bendable area in the glass substrate, is connected with a buffer zone, and the buffer zone is connected with a non-bending zone; the buffer zone
  • the glass layer of is thinner than the glass substrate and thicker than the glass layer of the bendable zone, the glass layer of the buffer zone and the glass layer of the bendable zone form a step groove, the step groove Filled with flexible material.
  • the stepped groove includes a square groove located in the bendable area, and a groove body located in the buffer area and connected to the square groove
  • the cross-sectional shape of the trough body is rectangular, triangular or arc-shaped.
  • the flexible material is polyimide.
  • a light-shielding ink is provided on the surface of the glass substrate, and the light-shielding ink corresponds to the four sides of the glass substrate and is located at the opening of the recessed area. One side is used to separate the display area and the non-display area of the cover plate corresponding to the bendable display panel.
  • An embodiment of the present invention provides a bendable display panel.
  • the bendable display panel includes a flexible display module and a cover plate.
  • the cover plate includes a glass substrate.
  • a recessed area is formed on the surface of the glass substrate. The recessed area thins the glass substrate to a bendable thickness; and the recessed area is filled with a flexible material to cooperate with the glass layer of the recessed area to form the bendable area of the cover plate.
  • the area outside the bendable area of the cover plate is a non-bending area, and the thickness of the glass substrate in the non-bending area ranges from 0.5 mm to 1 mm.
  • the thickness of the glass substrate in the bendable area ranges from 0.03 mm to 0.1 mm.
  • the sum of the thickness of the flexible material and the glass layer in the recessed area is equal to the thickness of the glass substrate in the non-bending area.
  • the bendable area in the glass substrate, is connected with a buffer area, and the buffer area is connected with a non-bending area;
  • the glass layer of the buffer zone is thinner than the glass substrate and thicker than the glass layer of the bendable zone, and the glass layer of the buffer zone and the glass layer of the bendable zone form a step groove, so The stepped groove is filled with a flexible material.
  • the stepped groove includes a square groove located in the bendable area, and a groove body located in the buffer area and connected to the square groove.
  • the cross-sectional shape of the trough is rectangular, triangular or arc-shaped.
  • An embodiment of the present invention provides a display device.
  • the display device includes a driving chip and a bendable display panel.
  • the bendable display panel includes a flexible display module and a cover plate.
  • the cover plate includes a glass substrate, A recessed area is formed on the surface of the glass substrate, and the recessed area thins the glass substrate to a bendable thickness; and the recessed area is filled with a flexible material to match the glass layer of the recessed area to form a surface The bendable area of the cover plate.
  • the area outside the bendable area of the cover plate is the non-bending area, and the thickness of the glass substrate in the non-bending area ranges from 0.5 mm to 1 mm.
  • the thickness of the glass substrate in the bendable area ranges from 0.03 mm to 0.1 mm.
  • the sum of the thickness of the flexible material and the glass layer in the recessed area is equal to the thickness of the glass substrate in the non-bending area.
  • the bendable area is connected with a buffer area, and the buffer area is connected with a non-bending area;
  • the glass layer of the buffer zone is thinner than the glass substrate and thicker than the glass layer of the bendable zone, and the glass layer of the buffer zone and the glass layer of the bendable zone form a step groove, so The stepped groove is filled with a flexible material.
  • the stepped groove includes a square groove located in the bendable area, and a groove body located in the buffer area and connected to the square groove.
  • the cross-sectional shape is rectangle, triangle or arc.
  • the cover plate of the bendable display panel provided by the embodiment of the present invention is achieved by using glass in the non-bending area and using ultra-thin glass and flexible material filling structure in the bendable area.
  • FIG. 1 is a schematic plan view of a cover plate of a bendable display panel provided by an embodiment of the present invention
  • FIG. 2 is a cross-sectional view of the cover plate of the bendable display panel provided by the first embodiment of the present invention
  • 3a to 3c are cross-sectional views of the cover plate of the bendable display panel provided by the second embodiment of the present invention.
  • the cover plate of the prior art bendable display panel adopts the structure of adding a hard coating on the transparent PI, resulting in high cost, insufficient surface hardness, and poor hand feeling. This embodiment can solve this defect.
  • FIG. 1 a schematic plan view of a cover plate of a bendable display panel provided by an embodiment of the present invention. From the figure, one can clearly see the partial structure of the cover plate of the bendable display panel of the present invention.
  • the cover plate includes a glass substrate. The surface of the glass substrate defines a bendable area 101 and a non-bendable area 102 located on both sides of the bendable area 101.
  • An ink frame 103 is provided on the surface of the glass substrate.
  • the ink frame 103 is a light-shielding ink for separating the non-display area of the display device, similar to the frame of a mobile phone.
  • the glass substrate of the bendable area 101 is thinned to a bendable thickness and filled with flexible materials.
  • This structure makes the cover plate bendable, reduces costs, and improves surface hardness and surface hardness. Touch feel.
  • FIG. 2 a cross-sectional view of the cover plate of the bendable display panel provided by the first embodiment of the present invention, from which part of the structure of the cover plate of the bendable display panel of the present invention can be seen intuitively
  • the cover plate includes a glass substrate, and a recessed area 203 is formed on the surface of the glass substrate, and the recessed area 203 thins the glass substrate to a bendable thickness; and the recessed area 203 is filled with a flexible material , To match the glass layer 204 of the recessed area 203 to form the bendable area 201 of the cover plate.
  • the area outside the bendable area 201 of the cover plate is the non-bending area 202, and the thickness of the glass substrate of the non-bending area 202 ranges from 0.5 mm to 1 mm.
  • the thickness of the glass substrate 204 of the bending area 201 ranges from 0.03 mm to 0.1 mm.
  • the sum of the thickness of the flexible material and the glass layer 204 of the recessed area 203 is greater than the thickness of the glass substrate 205 of the non-bending area 202.
  • the thickness is equal; the surface of the glass substrate is provided with shading ink 206, the shading ink 206 corresponds to the four sides of the glass substrate, and is located on the side of the opening of the recessed area 203, for separating the cover plate corresponding to The display area and the non-display area of the bendable display panel.
  • the flexible material is polyimide
  • the glass substrate thinning process in the recessed area is chemical etching, or computer numerical control tool, or laser.
  • the ordinary glass substrate is first divided into bendable Then determine the depression depth of the bendable area, and then use the thinning process to thin the glass substrate, and finally fill the flexible material, make the ink frame and other subsequent processes to complete the production of the cover.
  • the second embodiment of the present invention provides a cross-sectional view of the cover plate of the bendable display panel, from which part of the cover plate of the bendable display panel of the present invention can be seen intuitively
  • the cover plate includes a glass substrate, a recessed area 304 is formed on the surface of the glass substrate, the recessed area 304 thins the glass substrate to a bendable thickness; and the recessed area 304 is filled with
  • the flexible material is matched with the glass layer 305 of the recessed area 304 to form the bendable area 301 of the cover plate; wherein, the bendable area 301 is connected with a buffer area 303, and the buffer area 303 is connected with a non-bending area In the bending area 302, the thickness of the glass substrate in the non-bending area 302 ranges from 0.5 mm to 1 mm, and the thickness of the glass substrate 305 in the bendable area 301 ranges from 0.03 mm to 0.1 mm; the bendable The sum of the
  • the glass layer of the buffer zone 303 is thinner than the glass substrate and thicker than the glass layer 305 of the bendable zone.
  • the glass layer 305 in the bending area forms a stepped groove, and the stepped groove is filled with a flexible material;
  • the stepped groove includes a square groove located in the bendable area, and located in the buffer zone 303 and connected to the
  • the cross-sectional shape of the groove body is a rectangle 307 (as shown in FIG. 3a), a triangle 309 (as shown in FIG. 3b), or an arc 310 (as shown in FIG. 3c).
  • the flexible material is polyimide
  • the glass substrate thinning process of the recessed area 304 and the buffer area 303 is chemical etching, or computer numerical control tool, or laser.
  • the glass substrate is divided into a bendable area, a non-bending area and a buffer zone, and then determine the concave depth of the bendable zone and the groove shape and depth of the buffer zone, and then use a thinning process to thin the glass substrate, and finally Filling flexible materials, making ink frames and other subsequent processes, complete the production of the cover.
  • a buffer zone between the bendable area and the non-bendable area by providing a buffer zone between the bendable area and the non-bendable area, a part of the bending stress can be offset, glass damage can be reduced, and the service life of the product can be prolonged.
  • An embodiment of the present invention provides a bendable display panel.
  • the bendable display panel includes a flexible display module and the above-mentioned cover plate.
  • An embodiment of the present invention provides a display device that includes a driving chip and the above-mentioned bendable display panel.
  • the cover plate of a bendable display panel uses glass in the non-bending area, and uses a structure filled with ultra-thin glass and flexible material in the bendable area to reduce the cost.
  • the cost of bending the cover the technical effect of improving the surface hardness and enhancing the user's feel, solves the problem of the cover of the prior art bendable display panel. Due to the structure of adding a hard coating on the transparent PI, the cost is higher. , The technical problem of insufficient surface hardness and poor hand feeling.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

L'invention concerne une plaque de couverture d'un panneau d'affichage pliable, la plaque de couverture comprenant un substrat de verre, la surface du substrat de verre étant formée avec une zone évidée (203, 304), la zone évidée (203, 304) amincissant le substrat de verre à une épaisseur pliable ; la zone évidée (203, 304) étant remplie d'un matériau souple pour former une zone pliable (101, 201, 301) de la plaque de couverture en coopération avec une couche de verre (204, 305) de la zone évidée (203, 304).
PCT/CN2019/087326 2019-04-28 2019-05-17 Plaque de couverture d'un panneau d'affichage pliable, panneau d'affichage pliable et dispositif d'affichage Ceased WO2020220401A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910347393.6A CN110047393A (zh) 2019-04-28 2019-04-28 一种可弯折显示面板的盖板、可弯折显示面板及显示装置
CN201910347393.6 2019-04-28

Publications (1)

Publication Number Publication Date
WO2020220401A1 true WO2020220401A1 (fr) 2020-11-05

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PCT/CN2019/087326 Ceased WO2020220401A1 (fr) 2019-04-28 2019-05-17 Plaque de couverture d'un panneau d'affichage pliable, panneau d'affichage pliable et dispositif d'affichage

Country Status (2)

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CN (1) CN110047393A (fr)
WO (1) WO2020220401A1 (fr)

Cited By (2)

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WO2023222350A1 (fr) * 2022-05-17 2023-11-23 Schott Ag Élément en verre souple et son procédé de production
CN118098076A (zh) * 2024-03-01 2024-05-28 武汉华星光电半导体显示技术有限公司 一种显示模组

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CN110379306A (zh) * 2019-06-10 2019-10-25 武汉华星光电半导体显示技术有限公司 一种可弯折显示面板的盖板、可弯折显示面板及显示装置
CN110634401A (zh) * 2019-08-23 2019-12-31 武汉华星光电半导体显示技术有限公司 盖板及柔性显示装置
CN110634404B (zh) * 2019-08-30 2021-03-16 武汉华星光电半导体显示技术有限公司 一种盖板及柔性显示装置
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KR102888572B1 (ko) * 2019-11-05 2025-11-21 삼성디스플레이 주식회사 윈도우 글라스, 이를 포함하는 표시 장치 및 이의 제조 방법
CN111063258A (zh) * 2019-12-06 2020-04-24 武汉华星光电半导体显示技术有限公司 盖板、盖板的制备方法和显示装置
US11227514B2 (en) 2019-12-06 2022-01-18 Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. Cover, manufacturing method of cover, and display device
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US12108620B2 (en) * 2020-11-13 2024-10-01 Microsoft Technology Licensing, Llc Foldable display device with backplate slots
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CN113393774B (zh) * 2021-07-27 2025-07-25 京东方科技集团股份有限公司 一种柔性盖板及柔性显示装置
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CN117082896B (zh) * 2023-08-31 2024-09-06 长沙惠科光电有限公司 显示面板和显示装置
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CN118450769A (zh) * 2024-05-09 2024-08-06 京东方科技集团股份有限公司 显示面板及其制作方法、显示装置
CN121708823A (zh) * 2024-09-20 2026-03-20 武汉华星光电半导体显示技术有限公司 显示模组及显示装置

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