Touch panel

• US 7,026,567 B2
• Filed: 11/01/2004
• Issued: 04/11/2006
• Est. Priority Date: 03/15/2004
• Status: Expired due to Fees

• Current Assignee: InnoLux Corporation
• Original Assignee: Toppoly Optoelectronics Corporation (InnoLux Corporation)
• Inventors: Mai, Che-Kuei, Lo, Ming-Mo
• Primary Examiner(s): LEE, KYUNG S
• Application Number:
  US10/976,824
• Publication Number:
  US 20050199481A1
• Time in Patent Office: 526 Days
• Field of Search: 345173-179, 345/206, 428/141, 428/212, 257/431, 257/437, 200/512, 200/5.A
• US Class Current: 200/512
• CPC Class Codes: G06F 3/045 using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact

Abstract

A touch panel is provided. The touch panel includes a first flexible substrate with a first surface, a second substrate with a second surface facing the first surface, and a masking structure with a first contacting surface and a second contacting surface respectively adjacent to an edge portion of the first flexible substrate and an edge portion of the second substrate. The second contacting surface is wider than the first contacting surface.

Claims

1. A touch panel device, comprising:

a first flexible substrate with a first surface;

a frame rimming said first flexible substrate;

a second substrate with a second surface facing said first surface; and

a masking structure with a first contacting surface and a second contacting surface respectively adjacently to an edge portion of said first flexible substrate and an edge portion of said second substrate,

wherein said masking structure extends inwardly into said first flexible substrate and said second substrate more than that of said frame does, and said second contacting surface extends inwardly into said first flexible substrate and said second substrate more than that of said first contacting surface does.

2. The touch panel device as claimed in claim 1, wherein said first contacting surface contacts said first surface, and said second contacting surface contacts said second surface.

3. The touch panel device as claimed in claim 1, wherein said first flexible substrate further comprises a touch surface for receiving a touch.

4. The touch panel device as claimed in claim 1, wherein said first flexible substrate and said second substrate are made of a transparent insulating material.

5. The touch panel device as claimed in claim 1, wherein said masking structure is made of an absorbent.

6. The touch panel device as claimed in claim 1, wherein said masking structure is black.

7. The touch panel device as claimed in claim 6, wherein said masking structure is made of an absorbent.

8. A touch panel device, comprising:

a first flexible substrate with a first surface;

a frame rimming said first flexible substrate;

a second substrate with a second surface facing said first surface; and

a masking structure formed by stacking a plurality of insulating layers and located between an edge portion of said first flexible substrate and an edge portion of said second substrate,

wherein one of said plurality of insulating layers is adjacent to said first surface and extends inwardly into said first flexible substrate less than that of an insulating layer located therebelow does, and said insulating layer located therebelow extends inwardly into said first flexible substrate and said second substrate more than that of said frame does.

9. The touch panel device as claimed in claim 8, wherein said first flexible substrate further comprises a touch surface for receiving a touch.

10. The touch panel device as claimed in claim 8, wherein said first flexible substrate and said second substrate are made of a transparent insulating material.