Display device

Patent metadata

Field	Value
Publication number	US-12426171-B2
Application number	US-202218579942-A
Country	US
Kind code	B2
Filing date	Jul 1, 2022
Priority date	Jul 20, 2021
Publication date	Sep 23, 2025
Grant date	Sep 23, 2025

Abstract

A display device is disclosed. The display device includes a module outer frame, including a display opening window, where an accommodation space is formed inside the module outer frame; a display module, fixed in the accommodating space, where a light emitting side of the display module faces the display opening window; a touch module, fixed between the display module and the display opening window, where the touch module includes a haptic sensor configured to generate a standing wave on a surface of the touch module during operation; a first isolation structure, arranged between the touch module and the module outer frame, where the first isolation structure is configured to isolate the touch module from the module outer frame; and a second isolation structure, arranged between the display module and the touch module, where the second isolation structure is configured to isolate the display module from the touch module.

First claim

What is claimed is:

1. A display device, comprising:
a module outer frame, comprising a display opening window, wherein an accommodation space is formed inside the module outer frame;
a display module, fixed in the accommodating space, wherein a light emitting side of the display module faces the display opening window;
a touch module, fixed between the display module and the display opening window, wherein the touch module comprises a haptic sensor, and the haptic sensor is configured to generate a standing wave on a surface of the touch module during operation;
a first isolation structure, arranged between the touch module and the module outer frame, wherein the first isolation structure is configured to isolate the touch module from the module outer frame; and
a second isolation structure, arranged between the display module and the touch module, wherein the second isolation structure is configured to isolate the display module from the touch module;
wherein the first isolation structure is located at positions of two opposite edge frames of the touch module; and
the first isolation structure and the second isolation structure are arranged at positions of edge frames on same side.

2. The display device according to claim 1 , wherein a Young's modulus of each of the first isolation structure and the second isolation structure is less than 0.1 Mpa;
wherein a material of the first isolation structure is polydimethylsiloxane, PDMS, foam or rubber; and a material of the second isolation structure is PDMS, foam or rubber.

3. The display device according to claim 1 , wherein the second isolation structure is located at positions of two opposite edge frames of the display module.

4. The display device according to claim 3 , wherein the second isolation structure located at one of the positions of the two opposite edge frames comprises a plurality of second isolation parts arranged at intervals.

5. The display device according to claim 3 , wherein an extension direction of each of the two opposite edge frames where the second isolation structure is located is perpendicular to a vibration propagation direction of the standing wave.

6. The display device according to claim 3 , wherein the two opposite edge frames where the second isolation structure is located are short edge frames.

7. The display device according to claim 3 , wherein the second isolation structure is fixed on a surface of the display module facing the touch module.

8. The display device according to claim 7 , wherein the module outer frame comprises a module side frame and a module bottom frame, and the display opening window is located at a side facing away from the module bottom frame; and
the second isolation structure is further fixed on a side of the display module facing the module side frame.

9. The display device according to claim 1 , wherein the first isolation structure located at one of the positions of the two opposite edge frames comprises a plurality of first isolation parts arranged at intervals.

10. The display device according to claim 1 , wherein the module outer frame comprises a module side frame, a module bottom frame, and a module top frame, and the module top frame comprises the display opening window; and
the first isolation structure is fixed on a surface of the touch module facing the module top frame.

11. The display device according to claim 10 , wherein the first isolation structure and the second isolation structure are covered by the module top frame, and the first isolation structure and the second isolation structure do not overlap with the display opening window.

12. The display device according to claim 11 , wherein the haptic sensor is covered by the module top frame, and the haptic sensor does not overlap with the display opening window.

13. The display device according to claim 12 , wherein the haptic sensor, the first isolation structure, and the second isolation structure are located at positions of two opposite short edge frames;
a relationship between a width L 2 of the haptic sensor at one short edge frame and a distance L 1 between the haptic sensor and an edge of the short edge frame satisfies:

0
<

L
⁢
1

⩽

L
/
n

;

0
<

L
⁢
2

⩽

L
/
n

;

wherein n is a positive integer, and L is a length of the touch module.

14. The display device according to claim 10 , wherein the first isolation structure is further fixed on a side of the touch module facing the module side frame.

15. The display device according to claim 10 , further comprising: a limiting structure, arranged on a side of the module top frame facing the module bottom frame;
wherein the limiting structure is configured to limit a position of the touch module; and
the first isolation structure is further fixed between the touch module and the limiting structure.

16. The display device according to claim 1 , wherein the module outer frame comprises a fixing component within the accommodating space, the fixing component is configured to fix the display module and the touch module; and
the first isolation structure is arranged between the fixing component and the touch module.

17. The display device according to claim 1 , wherein the module outer frame comprises a module side frame and a module bottom frame, and the display opening window is located at a side facing away from the module bottom frame; and
the first isolation structure is arranged between the touch module and the module side frame.

18. The display device according to claim 17 , wherein the first isolation structure is arranged to surround the touch module.

19. The display device according to claim 17 , wherein the haptic sensor and the second isolation structure are located at positions of two opposite short edge frames; and
the touch module comprises a light-blocking layer configured to block the haptic sensor and the second isolation structure.

Assignees

• Beijing Boe Technology Dev Co Ltd
• Boe Technology Group Co Ltd

Inventors

• Liu Xiaotong
• Chen Yuju
• Tao Yongchun
• Hua Hui
• Yang Zhiming
• Huang Jijing
• Zhang Hengfei
• Wang Yingzi

Classifications

• G06F3/0412

  Digitisers structurally integrated in a display · CPC title

• G06F1/1656

  Details related to functional adaptations of the enclosure, e.g. to provide protection against EMI, shock, water, or to host detachable peripherals like a mouse or removable expansions units like PCMCIA cards, or to provide access to internal components for maintenance or to removable storage supports like CDs or DVDs, or to mechanically mount accessories (mounting of accessories to a computer display G06F1/1607; display hoods G06F1/1603; cooling arrangements for portable computers G06F1/203) · CPC title

• G06F1/1643

  the display being associated to a digitizer, e.g. laptops that can be used as penpads (details related to the relative motion of the display enclosure with respect to the body enclosure, e.g. to move between laptop and tablet PC configuration G06F1/1615) · CPC title

• G06F1/1637

  Details related to the display arrangement, including those related to the mounting of the display in the housing · CPC title

• G09G2300/04

  Structural and physical details of display devices · CPC title