TOUCH SCREEN

• US 20120092274A1
• Filed: 01/31/2011
• Published: 04/19/2012
• Est. Priority Date: 10/14/2010
• Status: Abandoned Application

• Current Assignee: Samsung Electro-Mechanics Co., Ltd. (Samsung Group)
• Original Assignee: Samsung Electro-Mechanics Co., Ltd. (Samsung Group)
• Inventors: Kim, Hyun Jun, Oh, Yong Soo, Lee, Jong Young, Kim, Jae Il, Kim, Woon Chun
• Application Number:
  US13/017,199
• Publication Number:
  US 20120092274A1
• Time in Patent Office: Days
• US Class Current: 345/173
• 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 touch screen, including: a first transparent electrode formed on one surface of a first transparent substrate; a second transparent electrode formed on one surface of a second transparent substrate; a first adhesive layer configured to adhere the first transparent substrate and the second transparent substrate to each other; a window plate adhered to the first transparent substrate; and hardness dots formed on one surface of the window plate or the other surface of the first transparent substrate. The present invention has been made in an effort to provide a touch screen which can lower the operational load of a transparent electrode.

Claims

1. A touch screen, comprising:

a first transparent electrode formed on one surface of a first transparent substrate;

a second transparent electrode formed on one surface of a second transparent substrate;

a first adhesive layer configured to adhere an edge of one surface of the first transparent substrate and an edge of one surface of the second transparent substrate to each other;

a second adhesive layer formed on the other surface of the first transparent substrate;

a window plate adhered to the first transparent substrate through the second adhesive layer; and

hardness dots formed on one surface of the window plate adhered to the second adhesive layer or the other surface of the first transparent substrate,

wherein the first transparent electrode and the second transparent electrode are contacted with each other upon occurrence of touch input, and sense changes in resistance or voltage.

2. The touch screen as set forth in claim 1, further comprising dot spacers formed between the first transparent electrode and the second transparent electrode.

3. The touch screen as set forth in claim 1, wherein the first transparent electrode or the second transparent electrode includes a conductive polymer.

4. The touch screen as set forth in claim 2, the hardness dots and the dot spacers are alternately arranged.

5. The touch screen as set forth in claim 2, the dot spacers are formed on the first transparent electrode or the second transparent electrode.