Cover lens with touch-sensing function and method for fabricating the same

• US 8,081,169 B2
• Filed: 11/10/2008
• Issued: 12/20/2011
• Est. Priority Date: 08/12/2008
• Status: Active Grant

• Current Assignee: Tazik Solutions Limited
• Original Assignee: Cando Corporation
• Inventors: Chang, Chih-Chiang, Cheng, Teng-Yin, Lin, Kuan-Ying
• Primary Examiner(s): Edun, Muhammad N
• Application Number:
  US12/290,000
• Publication Number:
  US 20100039398A1
• Time in Patent Office: 1,135 Days
• Field of Search: None
• US Class Current: 345/173
• CPC Class Codes: G06F 1/1607 Arrangements to support accessories mechanically attached to the display housing G06F1/1603, G06F1/1605 take precedence
• CPC Class Codes: G06F 3/041 Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
• CPC Class Codes: G06F 3/044 by capacitive means

Abstract

A cover lens with touch-sensing function is provided, which is combined onto an external side of an electronic device and allows the touch-sensing and protection for the electronic device. The provided cover lens is constructed by a tempered substrate, a pattern layer and a touch-sensing layer, where the pattern layer is formed on a first surface of the tempered substrate so as to provide the cover lens with an appearance of periphery-like pattern. The touch-sensing layer is also formed on the first surface of the tempered substrate. The present invention also provides a touch display having such cover lens and the fabricating method thereof.

Claims

1. A cover lens with touch-sensing function configured on an external side of an electronic device for providing the touch-sensing function and protecting said electronic device, comprising:

a tempered substrate;

a pattern layer formed on a first surface of said tempered substrate to provide said cover lens with an appearance of periphery-like pattern; and

a touch-sensing layer directly formed on said first surface of said tempered substrate, wherein said tempered substrate is used directly as the substrate required by said touch-sensing layer.

2. The cover lens of claim 1, further comprising an overcoat layer located between said tempered substrate and said touch-sensing layer, wherein said touch-sensing layer is directly coated on said first surface of said tempered substrate via said overcoat layer, and said touch-sensing layer provides the touch-sensing function.

3. The cover lens of claim 2, further comprising a flat display module constructed to said first surface of said tempered substrate by air bonding via said overcoat layer.

4. The cover lens of claim 1, further comprising an optical coating layer on a second surface of said tempered substrate, wherein said second surface is opposite to said first surface.

5. The cover lens of claim 4, wherein said optical coating layer is one selected from a group consisting of an anti-reflection layer, an anti-glare layer, an anti-smudge layer and a combination thereof.

6. The cover lens of claim 1, further comprising an optical coating layer, located between said tempered substrate and said pattern layer.

7. The cover lens of claim 6, wherein said optical coating layer is one selected from a group consisting of an anti-reflection layer, anti-glare layer, anti-smudge layer and a combination thereof.

8. The cover lens of claim 1, wherein said tempered substrate is a tempered glass substrate.

9. The cover lens of claim 1, wherein said pattern layer comprises a black matrix layer.

10. The cover lens of claim 1, wherein said touch-sensing layer is one of an indium tin oxide (ITO) layer and a transparent electrode layer.

11. The cover lens of claim 1, further comprising a flat display module and an adhering layer, wherein said tempered substrate combines said adhering layer and said flat display module by overall coating.

12. A touch-sensing display device, comprising:

a display module; and

a cover lens configured on said display module to protect said display module and provide the function of touch-sensing, wherein said cover lens comprises;

a tempered substrate;

a pattern layer formed on a first surface of said tempered substrate to provide said cover lens with an appearance of periphery-like pattern; and

a touch-sensing layer directly formed on said first surface of said tempered substrate, wherein said tempered substrate is used directly as the substrate required by the touch-sensing layer.

13. The touch-sensing display device of claim 12, wherein said cover lens further comprises an overcoat layer located between said tempered substrate and said touch-sensing layer.

14. The touch-sensing display device of claim 12, wherein said cover lens further comprises an optical coating layer located on a second surface of said tempered substrate, wherein said second surface is opposite to said first surface.

15. The touch-sensing display device of claim 14, wherein said optical coating layer is one selected from a group consisting of an anti-reflection layer, anti-glare layer, anti-smudge layer and a combination thereof.

16. The touch-sensing display device of claim 12, wherein said cover lens further comprises an optical coating layer located between said tempered substrate and said pattern layer.

17. The touch-sensing display device of claim 16, wherein said optical coating layer is one selected from a group consisting of an anti-reflection layer, anti-glare layer, anti-smudge layer and a combination thereof.

18. The touch-sensing display device of claim 12, wherein said tempered substrate is a tempered glass substrate.

19. The touch-sensing display device of claim 12, wherein said pattern layer comprises a black matrix layer.

20. The touch-sensing display device of claim 12, wherein said touch-sensing layer is one of an indium tin oxide (ITO) layer and a transparent electrode layer.

21. A method of fabricating a cover lens of a touch-sensing panel, comprising the steps:

providing a tempered glass substrate;

forming a pattern layer on said tempered glass substrate; and

directly forming a touch-sensing layer on said tempered glass substrate, wherein said tempered glass substrate is used directly as the substrate required by said touch-sensing layer.

22. The method of claim 21, wherein said pattern layer is formed such that said cover lens is provided with an appearance of periphery-like pattern corresponding thereto.

23. The method of claim 21, wherein said pattern layer is formed on said tempered glass substrate by one of printing, coating and depositing.

24. The method of claim 21, wherein said pattern layer comprises a black matrix layer.

25. The method of claim 21 further comprising processing said tempered glass substrate such that said tempered glass substrate is provided with a desired optical property.

26. The method of claim 25, wherein said processing comprises one selected from a group consisting of anti-reflection processing, anti-glare processing, anti-smudge processing and a combination thereof.