TOUCH PANEL DISPLAY AND ASSEMBLY PROCESS THEREOF

• US 20130093697A1
• Filed: 04/26/2012
• Published: 04/18/2013
• Est. Priority Date: 10/18/2011
• Status: Abandoned Application

• Current Assignee: HTC Corporation
• Original Assignee: Wei-Hao Sun
• Inventors: SUN, Wei-Hao
• Application Number:
  US13/456,673
• Publication Number:
  US 20130093697A1
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/0443 using a single layer of sensing electrodes

Abstract

A touch panel display is provided. The display includes a display module and a transparent top plate disposed above the display module. The transparent top plate has a touch surface opposite to the display module. A spacer is disposed between the display module and the transparent top plate to form a first cavity therebetween. The spacer includes a first adhesive film attached to the display module, a second adhesive film attached to the transparent top plate and a hard transparent layer sandwiched between the first and second adhesive films. An assembly process and a touch sensing module thereof are also disclosed.

Claims

1. A touch panel display, comprising:

a display module;

a transparent top plate disposed above the display module, having a touch surface opposite to the display module; and

a first spacer disposed between the display module and the transparent top plate to form a first cavity therebetween, comprising;

a first adhesive film attached to the display module;

a second adhesive film attached to the transparent top plate; and

a first hard transparent layer sandwiched between the first and second adhesive films.

2. The display of claim 1, further comprising a first transparent adhesive filler disposed within the first cavity.

3. The display of claim 1, wherein the first hard transparent layer comprises polycarbonate or glass.

4. The display of claim 1, wherein the transparent top plate is a cover substrate and a touch sensing structure comprising a touch sensing array is integrated onto the display module.

5. The display of claim 1, wherein the transparent top plate is a touch sensing module comprising a cover substrate and a touch sensing structure thereunder.

6. The display of claim 5, wherein the touch sensing module further comprises a second spacer disposed between the cover substrate and touch sensing structure to form a second cavity therebetween, and wherein the second spacer comprises:

a third adhesive film attached to the touch sensing structure;

a fourth adhesive film attached to the cover substrate; and

a second hard transparent layer sandwiched between the third and fourth adhesive films.

7. The display of claim 6, further comprising a second transparent adhesive filler disposed within the second cavity.

8. The display of claim 7, wherein the second hard transparent layer comprises polycarbonate or glass.

9. The display of claim 1, wherein the transparent top plate is a touch sensing plate comprising a cover substrate and a touch sensing array integrated thereon.

10. An assembly process for a touch panel display, comprising:

providing a display module; and

providing a transparent top plate having a touch surface and attaching the transparent top plate to the display module by a first spacer, such that the touch surface is opposite to the display module and a first cavity is formed between the display module and the transparent top plate,

wherein the first spacer, comprises;

a first adhesive film attached to the display module;

a second adhesive film attached to the transparent top plate; and

a first hard transparent layer sandwiched between the first and second adhesive films

11. The process of claim 10, further filling a first transparent adhesive filler within the first cavity.

12. The process of claim 10, wherein the first hard transparent layer comprises polycarbonate or glass.

13. The process of claim 10, wherein the transparent top plate is a cover substrate and a touch sensing structure comprising a touch sensing array is integrated onto the display module.

14. The process of claim 10, wherein the transparent top plate is a touch sensing module comprising a cover substrate and a touch sensing structure thereunder.

15. The process of claim 14, further comprising attaching the cover substrate to the touch sensing structure by a second spacer to form a second cavity therebetween, wherein the second spacer comprises:

a third adhesive film attached to the touch sensing structure;

a fourth adhesive film attached to the cover substrate; and

a second hard transparent layer sandwiched between the third and fourth adhesive films.

16. The process of claim 15, further comprising a second transparent adhesive filler disposed within the second cavity.

17. The process of claim 16, wherein the second hard transparent layer comprises polycarbonate or glass.

18. The process of claim 10, wherein the transparent top plate is a touch sensing plate comprising a cover substrate and a touch sensing array integrated thereon.

19. A touch sensing module for a touch panel display, comprising:

a touch sensing structure;

a transparent cover substrate disposed above the touch sensing structure, having a touch surface opposite to the touch sensing structure; and

a spacer disposed between the touch sensing structure and the transparent cover substrate to form a cavity therebetween, comprising;

a first adhesive film attached to the touch sensing structure;

a second adhesive film attached to the transparent cover substrate; and

a hard transparent layer sandwiched between the first and second adhesive films.

20. The module of claim 19, further comprising a transparent adhesive filler disposed within the cavity.

21. The module of claim 19, wherein the first hard transparent layer comprises polycarbonate or glass.