TOUCH PANEL

• US 20110304578A1
• Filed: 08/31/2010
• Published: 12/15/2011
• Est. Priority Date: 06/09/2010
• Status: Abandoned Application

• Current Assignee: Samsung Electro-Mechanics Co., Ltd. (Samsung Group)
• Original Assignee: Samsung Electro-Mechanics Co., Ltd. (Samsung Group)
• Inventors: CHAE, Kyoung Soo, LEE, Jong Young, KIM, Hyun Jun, LEE, Kyoung Ho
• Application Number:
  US12/873,143
• Publication Number:
  US 20110304578A1
• Time in Patent Office: Days
• US Class Current: 345/174
• CPC Class Codes: G06F 2203/04111 Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate
• CPC Class Codes: G06F 3/0446 using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes

Abstract

Disclosed herein is a touch panel 100 including: a transparent substrate 10, first electrode patterns 20 that are formed on one surface of the transparent substrate 10 and include a plurality of first sensing units 23 and connecting units 25 connecting adjacent first sensing units 23, and second electrode patterns 30 that are formed on one surface of the transparent substrate 10 vertically with the first electrode patterns 20 and include a plurality of second sensing units 33 and bridges 35 connecting the adjacent second sensing units 33 to be spaced apart from the connecting units 25, wherein the bridge 35 is divided to form two or more bridge patterns 37. The bridge is divided to form two or more bridge patterns so that a user cannot recognize the bridge, thereby making it possible to improve visibility of the touch panel.

Claims

1. A touch panel, comprising:

a transparent substrate;

first electrode patterns that are formed on one surface of the transparent substrate and include a plurality of first sensing units and connecting units connecting the adjacent first sensing units; and

second electrode patterns that are formed on one surface of the transparent substrate vertically with the first electrode patterns and include a plurality of second sensing units and bridges connecting the adjacent second sensing units to be spaced apart from the connecting units,

wherein the bridge is divided to form two or more bridge patterns.

2. The touch panel as set forth in claim 1, wherein the connecting unit is divided to form two or more connection patterns.

3. The touch panel as set forth in claim 1, wherein the bridge is formed of three or four bridge patterns.

4. The touch panel as set forth in claim 2, wherein the connecting unit is formed of three or four connection patterns.

5. The touch panel as set forth in claim 1, wherein when the terminal resistance of the one bridge pattern is M Ω

, the terminal resistance of the bridge formed of the N bridge patterns is smaller than M/N Ω

.

6. The touch panel as set forth in claim 2, wherein when the terminal resistance of the one connection pattern is M Ω

, the terminal resistance of the connecting unit formed of the N connection patterns is smaller than M/N Ω

.

7. The touch panel as set forth in claim 1, wherein the sum of the widths of two or more bridge patterns forming the bridge is 0.8 mm to 1.6 mm.

8. The touch panel as set forth in claim 2, wherein the sum of the widths of two or more connection patterns forming the connecting unit is 0.8 mm to 1.6 mm.

9. The touch panel as set forth in claim 1, wherein the first sensing unit and the second sensing unit are formed to have a diamond shape, a quadrangular shape, an octagonal shape, or a circular shape.

10. The touch panel as set forth in claim 2, wherein the first sensing unit and the second sensing unit are formed to have a diamond shape, a quadrangular shape, an octagonal shape, or a circular shape.