Touch screen and touch-sensitive apparatus

Patent metadata

Field	Value
Publication number	US-9880665-B2
Application number	US-201615208972-A
Country	US
Kind code	B2
Filing date	Jul 13, 2016
Priority date	Jan 5, 2016
Publication date	Jan 30, 2018
Grant date	Jan 30, 2018

Abstract

The present disclosure relates to field of display technique and discloses a touch screen and a touch-sensitive apparatus to prevent light rays outside a display region of the touch-sensitive apparatus from being reflected toward the display region through a silver paste layer, thereby reducing a light leak of the touch-sensitive apparatus and thus improving display effect and yield rate thereof. The touch screen comprises a first transparent substrate layer and a first tin indium oxide layer and a silver paste layer formed on the first transparent substrate layer. The silver paste layer is electrically connected with the first tin indium oxide layer and arranged within a non-display region of the touch screen. The touch screen further comprises a shielding layer arranged on a side of the silver paste layer where the first transparent substrate layer is located and configured for shielding the silver paste layer.

First claim

What is claimed is:

1. A touch screen comprising
a first transparent substrate layer; and
a first tin indium oxide layer and a silver paste layer formed on the first transparent substrate layer, the silver paste layer being electrically connected with the first tin indium oxide layer and arranged within a non-display region of the touch screen;
wherein the touch screen further comprises a shielding layer arranged on a side of the silver paste layer where the first transparent substrate layer is located and configured for shielding the silver paste layer,
wherein the shielding layer is arranged on a surface of the first transparent substrate layer facing away from the silver paste layer.

2. The touch screen according to claim 1 , further comprising
a first optical transparent adhesive layer arranged on a side of the first transparent substrate layer facing away from the silver paste layer;
a second tin indium oxide layer arranged on a side of the first optical transparent adhesive layer facing away from the first transparent substrate layer; and
a second transparent substrate layer arranged on a side of the second tin indium oxide layer facing away from the first optical transparent adhesive layer.

3. The touch screen according to claim 2 , wherein the shielding layer is arranged on a surface of the first optical transparent adhesive layer facing away from the first transparent substrate layer.

4. The touch screen according to claim 2 , wherein the shielding layer is arranged on a surface of the second tin indium oxide layer facing toward the second transparent substrate layer.

5. The touch screen according to claim 2 , wherein the shielding layer is arranged on a surface of the first transparent substrate layer facing away from the silver paste layer.

6. The touch screen according to claim 2 , further comprising:
a second optical transparent adhesive layer arranged on a side of the first tin indium oxide layer facing away from the first transparent substrate layer; and
a cover glass arranged on a side of the second optical transparent adhesive layer facing away from the first tin indium oxide layer.

7. The touch screen according to claim 1 , wherein the shielding layer has a thickness of 5-10 μm.

8. The touch screen according to claim 7 , wherein a distance between an edge of the shielding layer close to a display region of the touch screen and an edge of the display region is smaller than that between an edge of the silver paste layer close to the display region and the edge of the display region by 0.15-0.25 μm.

9. The touch screen according to claim 7 , wherein the shielding layer is made of a black ink material or a black matrix material.

10. The touch screen according to claim 7 , further comprising:
a second optical transparent adhesive layer arranged on a side of the first tin indium oxide layer facing away from the first transparent substrate layer; and
a cover glass arranged on a side of the second optical transparent adhesive layer facing away from the first tin indium oxide layer.

11. A touch-sensitive apparatus comprising the touch screen according to claim 1 .

12. The touch-sensitive apparatus according to claim 11 , wherein the touch screen further comprising
a first optical transparent adhesive layer arranged on a side of the first transparent substrate layer facing away from the silver paste layer;
a second tin indium oxide layer arranged on a side of the first optical transparent adhesive layer facing away from the first transparent substrate layer; and
a second transparent substrate layer arranged on a side of the second tin indium oxide layer facing away from the first optical transparent adhesive layer.

13. The touch-sensitive apparatus according to claim 12 , wherein the shielding layer is arranged on a surface of the first optical transparent adhesive layer facing away from the first transparent substrate layer.

14. The touch-sensitive apparatus according to claim 12 , wherein the shielding layer is arranged on a surface of the second tin indium oxide layer facing toward the second transparent substrate layer.

15. The touch-sensitive apparatus according to claim 11 , wherein the shielding layer has a thickness of 5-10 μm.

16. The touch-sensitive apparatus according to claim 15 , wherein a distance between an edge of the shielding layer close to a display region of the touch screen and an edge of the display region is smaller than that between an edge of the silver paste layer close to the display region and the edge of the display region by 0.15-0.25 μm.

17. The touch-sensitive apparatus according to claim 15 , wherein the shielding layer is made of a black ink material or a black matrix material.

18. The touch-sensitive apparatus according to claim 15 , further comprising:
a second optical transparent adhesive layer arranged on a side of the first tin indium oxide layer facing away from the first transparent substrate layer; and
a cover glass arranged on a side of the second optical transparent adhesive layer facing away from the first tin indium oxide layer.

Assignees

• Boe Technology Group Co Ltd
• Boe (Hebei) Mobile Display Tech Co Ltd

Inventors

• Feng Xuqing
• Zhao Tingting
• Sun Haiwei

Classifications

• G06F3/0412 Primary

  Digitisers structurally integrated in a display · CPC title

• G06F3/044

  by capacitive means · CPC title

• G06F3/041

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

• G06F3/0418 Primary

  for error correction or compensation, e.g. based on parallax, calibration or alignment · CPC title

• G06F2203/04107

  Shielding in digitiser, i.e. guard or shielding arrangements, mostly for capacitive touchscreens, e.g. driven shields, driven grounds · CPC title