TOUCH PANEL

• US 20150293559A1
• Filed: 08/19/2014
• Published: 10/15/2015
• Est. Priority Date: 04/11/2014
• Status: Active Grant

• Current Assignee: Samsung Electro-Mechanics Co., Ltd. (Samsung Group)
• Original Assignee: Samsung Electro-Mechanics Co., Ltd. (Samsung Group)
• Inventors: PARK, Jang Ho, PARK, Doo Ho, KIM, Yong Suk, JANG, In Hyun, LIM, Jung Ryoul
• Granted Patent: US 9,244,582 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 1/16 Constructional details or arrangements
• CPC Class Codes: G06F 1/1643 the display being associated to a digitizer, e.g. laptops that can be used as penpads details related to the relative motion of the display enclosure with respect to the body enclosure, e.g. to move between laptop and tablet PC configuration G06F1/1615
• CPC Class Codes: G06F 2203/04112 Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material
• CPC Class Codes: G06F 3/0445 using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
• 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
• CPC Class Codes: H05K 1/00 Printed circuits

Abstract

A touch panel may include a substrate; a printing part formed on a bezel area of the substrate; and a plurality of electrodes provided on the substrate and the printing part and including conductive wires configuring a plurality of unit cells having a mesh shape. Portions of wires configuring each of the plurality of unit cells overlapped with a boundary line between the substrate and the printing part among the plurality of unit cells are disconnected.

Claims

1. A touch panel comprising:

a substrate;

a printing part provided on a bezel area of the substrate; and

a plurality of electrodes each provided on the substrate and the printing part and including conductive wires configuring a plurality of unit cells having a mesh shape,

wherein portions of the conductive wires configuring each of the plurality of unit cells overlapped with a boundary line between the substrate and the printing part from a thickness direction of the substrate among the plurality of unit cells are disconnected.

2. The touch panel of claim 1, wherein the portions of the wires configuring each of the plurality of unit cells overlapped with the boundary line are disconnected on the substrate.

3. The touch panel of claim 1, wherein the respective wires formed in one direction and intersecting with the boundary line among the wires configuring each of the plurality of unit cells overlapped with the boundary line are disconnected.

4. The touch panel of claim 3, wherein all the respective wires formed in one direction and intersecting with the boundary line among the wires configuring each of the plurality of unit cells overlapped with the boundary line are disconnected.

5. The touch panel of claim 3, wherein portions of the respective wires formed in one direction and intersecting with the boundary line among the wires configuring each of the plurality of unit cells overlapped with the boundary line are disconnected.

6. The touch panel of claim 3, wherein the respective wires formed in a direction which is different from one direction and intersecting with the boundary line among the wires configuring each of the plurality of unit cells overlapped with the boundary line have a wire width wider than that of wires which do not intersect with the boundary line.

7. A touch panel comprising:

a substrate partitioned into a bezel area and an active area;

a printing part provided on the bezel area; and

a plurality of electrodes provided on the bezel area and the active area and including conductive wires configuring a plurality of unit cells having a mesh shape,

wherein portions of wires configuring each of the plurality of unit cells positioned in the range less than a reference distance from a boundary line between the bezel area and the active area to the active area side among the plurality of unit cells are disconnected.

8. The touch panel of claim 7, wherein the portions of the wires configuring each of the plurality of unit cells positioned in the range less than the reference distance are disconnected on the active area.

9. The touch panel of claim 7, wherein the respective wires formed in one direction and intersecting with the boundary line among a plurality of wires configuring each of the plurality of unit cells positioned in the range less than the reference distance are disconnected.

10. The touch panel of claim 9, wherein all the respective wires formed in one direction and intersecting with the boundary line among a plurality of wires configuring each of the plurality of unit cells positioned in the range less than the reference distance are disconnected.

11. The touch panel of claim 9, wherein portions of the respective wires formed in one direction and intersecting with the boundary line among a plurality of wires configuring each of the plurality of unit cells positioned in the range less than the reference distance are disconnected.

12. The touch panel of claim 9, wherein the respective wires formed in a direction which is different from one direction and intersecting with the boundary line among a plurality of wires configuring each of the plurality of unit cells positioned in the range less than the reference distance have a wire width wider than that of wires which do not intersect with the boundary line.

13. The touch panel of claim 7, wherein the reference distance is two times a pitch of each of the plurality of unit cells.

14. The touch panel of claim 7, wherein the reference distance is 2 mm.