Curved display device and fabrication method

Patent metadata

Field	Value
Publication number	US-10705362-B2
Application number	US-201816023577-A
Country	US
Kind code	B2
Filing date	Jun 29, 2018
Priority date	Mar 2, 2018
Publication date	Jul 7, 2020
Grant date	Jul 7, 2020

Abstract

A curved display device and a fabrication method are provided. The curved display device comprises: a cover lens; a display panel, wherein the display panel and the cover lens are bonded together as an integral having a curved surface; and a module, wherein a supporter is provided at each of at least two ends of the module. The supporter provided at the each of at least two ends of the module is directly bonded to the cover lens.

First claim

What is claimed is:

1. A curved display device, comprising:
a cover lens;
a display panel, wherein the display panel and the cover lens are bonded together as an integral structure having a curved surface; and
a module, including a plastic frame, wherein the plastic frame includes:
a supporter, provided at each of at least two ends of the module, and
an extension component, in a direct contact with an optical structure of the module, wherein the supporter provided at the each of at least two ends of the module is directly bonded to the cover lens.

2. The curved display device according to claim 1 , wherein:
the module comprises an optical structure including a light guide plate and a prism sheet; and
a gap is provided between the display panel and the optical structure.

3. The curved display device according to claim 1 , wherein:
the display panel comprises a flexible circuit board;
the module has a first side close to the flexible circuit board and an opposing second side far away from the flexible circuit board; and
a first opening is provided at the first side of the module.

4. The curved display device according to claim 1 , wherein:
the extension component and the display panel have an overlapped region;
a first gap is provided between the display panel and the extension component at the overlapped region; and
the first gap is approximately greater than or equal to 0.2 mm and less than or equal to 0.4 mm.

5. The curved display device according to claim 1 , wherein:
the cover lens and the supporter are bonded by a double-side foam adhesive tape.

6. The curved display device according to claim 1 , wherein:
the extension component has a first side facing the display panel and an opposing second side; and
a single-side foam adhesive tape is provided on the first side of the extension component.

7. The curved display device according to claim 1 , wherein:
the module comprises a back plate; and
the supporter provided at the each of at least two ends of the module is engaged into the back plate.

8. The curved display device according to claim 1 , wherein:
the display panel has a first side facing the cover lens and an opposing second side; and
a plurality of touch control electrodes are disposed on the first side of the display panel.

9. The curved display device according to claim 1 , wherein:
a gap is provided between the display panel and the supporter.

10. The curved display device according to claim 1 , wherein:
the plastic frame has a stepped shape; and
the extension component includes a first sub-component and a second sub-component, wherein a distance between the first sub-component and the cover lens is smaller than a distance between the second sub-component and the cover lens.

11. The curved display device according to claim 10 , wherein:
the second sub-component of the extension component has a first side facing the display panel and an opposing second side; and
a single-side foam adhesive tape is disposed on the first side of the second sub-component of the extension component.

12. The curved display device according to claim 11 , wherein:
the first sub-component of the extension component has a first side facing the display panel and an opposing second side; and
the single-side foam adhesive tape is also disposed on the first side of the first sub-component of the extension component.

13. The curved display device according to claim 1 , wherein:
the cover lens has a first side facing the display panel and an opposing second side; and
a plurality of touch control electrodes are disposed on the first side of the cover lens.

14. The curved display device according to claim 13 , further comprising:
a plurality of touch electrode leads and a touch control flexible circuit board,
wherein a touch control electrode of the plurality of touch control electrodes is electrically connected to at least one touch electrode lead of the plurality of touch electrode leads, and
the plurality of touch electrode leads are electrically connected to the touch control flexible circuit board.

15. The curved display device according to claim 14 , wherein:
the module comprises a plastic frame;
the plastic frame comprises the supporter provided at the each of at least two ends of the module; and
the plastic frame has a first side close to the touch control flexible circuit board and an opposing second side far away from the touch control flexible circuit board, and a second opening is provided at the first side of the plastic frame.

16. A fabrication method for a curved display device, comprising:
providing a cover lens;
providing a display panel, and bonding the display panel and the cover together as an integral structure having a curved surface;
providing a module, including a plastic frame, wherein the plastic frame includes:
a supporter provided at each of at least two ends of the module, and
an extension component, in a direct contact with an optical structure of the module; and

bonding the supporter of the plastic frame provided at the each of at least two ends of the module directly to the cover lens.

17. The fabrication method according to claim 16 , wherein:
a gap is provided between the display panel and the supporter.

18. The fabrication method according to claim 16 , wherein the module includes a plastic frame, the plastic frame includes the supporter provided at the each of at least two ends of the module, and the supporter has a first surface facing the display panel and an opposing second surface, the fabrication method further comprises:
before bonding the supporter provided at the each of at least two ends of the module to the cover lens, attaching a double-side foam adhesive tape to the first side of the supporter.

19. The fabrication method according to claim 18 , wherein the plastic frame includes an extension component, and the extension component has a first surface facing the display panel and an opposing second surface, the fabrication method further comprises:
before bonding the supporter provided at the each of at least two ends of the module to the cover lens, attaching a single-side foam adhesive tape to the first side of the extension component.

Assignees

• Shanghai Tianma Micro Elect Co

Inventors

• Fu Cheng
• Ding Yincheng
• Song Xiaosong
• Xu Chuanzhi
• Hu Mengning
• Li Xiaoye

Classifications

• H10K59/879

  comprising refractive means, e.g. lenses · CPC title

• H10K59/873

  Encapsulations · CPC title

• H10K59/871

  Self-supporting sealing arrangements · CPC title

• G02F1/133308 Primary

  Support structures for LCD panels, e.g. frames or bezels · CPC title

• G06F3/041 Primary

  Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means · CPC title