RESISTIVE TOUCH SCREEN

• US 20110227861A1
• Filed: 06/25/2010
• Published: 09/22/2011
• Est. Priority Date: 03/22/2010
• Status: Active Grant

• Current Assignee: Samsung Electro-Mechanics Co., Ltd. (Samsung Group)
• Original Assignee: Samsung Electro-Mechanics Co., Ltd. (Samsung Group)
• Inventors: Oh, Yong Soo, KIM, Woon Chun, Lee, Jong Young
• Granted Patent: US 8,355,011 B2
• Time in Patent Office: Days
• US Class Current: 345/174
• CPC Class Codes: G06F 3/045 using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact

Abstract

Disclosed herein is a resistive touch screen, including: a transparent film 100 that has a first transparent electrode 110 and is bent when the transparent film 100 is pressed; a dot spacer 200 that is formed on one surface of the first transparent electrode 110 and is configured to include a plurality of projection members 210; a transparent substrate 300 that has a second transparent electrode 310; and an adhesive layer 400 that adheres the edge of the transparent film 100 to the edge of the transparent substrate 300, wherein the side surfaces of the plurality of projection members 210 are closely adhered to each other but when the transparent film 100 is bent, the side surfaces of the plurality of projection members 210 are spaced from each other.

Claims

1. A resistive touch screen, comprising:

a transparent film that has a first transparent electrode formed on one surface of the transparent film and is bent when the other surface of the transparent film is pressed;

a dot spacer that is formed on one surface of the first transparent electrode and is configured to include a plurality of projection members;

a transparent substrate that has a second transparent electrode formed on one surface of the transparent substrate; and

an adhesive layer that adheres the edge of the transparent film to the edge of the transparent substrate so that the first transparent electrode is opposite to the second transparent electrode,

wherein the side surfaces of the plurality of projection members are closely adhered to each other but when the transparent film is bent, the side surfaces of the plurality of projection members are spaced apart from each other.

2. The resistive touch screen as set forth in claim 1, wherein the plurality of projection members include:

central projection members disposed in the center; and

outer projection members surrounding the central projection members in a circular form.

3. The resistive touch screen as set forth in claim 1, wherein the plurality of projection members are disposed in a circular form so that a cavity surrounded by the plurality of projection members is formed.

4. The resistive touch screen as set forth in claim 1, wherein the plurality of projection members have the same height.

5. The resistive touch screen as set forth in claim 1, wherein as the plurality of projection members becomes closer to the edges, the plurality of projection members have the heights that become higher.

6. The resistive touch screen as set forth in claim 1, wherein as the plurality of projection members become closer to the edges, the plurality of projection members have the heights that become lower.

7. The resistive touch screen as set forth in claim 1, wherein as the plurality of projection members become closer to the edges, the radius of curvature at the distal end of the projection members becomes larger.