RESISTIVE TOUCH SCREEN

• US 20120068959A1
• Filed: 12/28/2010
• Published: 03/22/2012
• Est. Priority Date: 09/20/2010
• Status: Active Grant

• Current Assignee: Samsung Electro-Mechanics Co., Ltd. (Samsung Group)
• Original Assignee: Samsung Electro-Mechanics Co., Ltd. (Samsung Group)
• Inventors: Kim, Woon Chun, Oh, Yong Soo, Kim, Hyun Jun, Lee, Jong Young
• Granted Patent: US 8,446,388 B2
• Time in Patent Office: Days
• US Class Current: 345/174
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• 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. The resistive touch screen includes a resistive touch panel configured to include a lower substrate formed with a lower electrode pattern in an active region through which images pass, an upper substrate formed with an upper electrode pattern to be opposite to the lower electrode pattern, and a spacer spacing the upper substrate from the lower substrate in order to contact the upper electrode pattern to the lower electrode pattern by external pressure; and a window bonded to the upper portion of the resistive touch panel by an optical clear adhesive, and including a covering film formed in the outer side region on the lower surface thereof and an elastic suppressing layer formed in the inner side region of the covering film.

Claims

1. A resistive touch screen, comprising:

a resistive touch panel including a lower substrate formed with a lower electrode pattern in an active region through which images pass, an upper substrate formed with an upper electrode pattern to be opposite to the lower electrode pattern, and a spacer spacing the upper substrate from the lower substrate in order to contact the upper electrode pattern to the lower electrode pattern by external pressure; and

a window bonded to the upper portion of the resistive touch panel by an optical clear adhesive, and including a covering film formed in the outer side region on the lower surface thereof and an elastic suppressing layer formed in the inner side region of the covering film.

2. The resistive touch screen as set forth in claim 1, wherein the upper electrode pattern and the lower electrode pattern are made of a conductive polymer.

3. The resistive touch screen as set forth in claim 1, wherein the conductive polymer is any one of polythiophenes, polypyrroles, polyanilines, polyacetylenes, and polyphenylenes.

4. The resistive touch screen as set forth in claim 1, wherein the elastic suppressing layer is made of acrylic resin.

5. The resistive touch screen as set forth in claim 1, wherein the thickness of the elastic suppressing layer corresponds to the thickness of the covering film.