In-cell touch panel for flat panel display device

• US 8,530,766 B2
• Filed: 09/23/2011
• Issued: 09/10/2013
• Est. Priority Date: 10/26/2010
• Status: Active Grant

• Current Assignee: LG Display Co., Ltd.
• Original Assignee: LG Display Co., Ltd.
• Inventors: Choi, Howon
• Primary Examiner(s): LEON MUNOZ, EDWIN A
• Application Number:
  US13/243,339
• Publication Number:
  US 20120097512A1
• Time in Patent Office: 718 Days
• Field of Search: 200/5.A, 200/600, 200/5.R, 200/46, 200/506, 200/512, 200/514, 200310-315, 345/173, 345/174, 345/177, 345/178
• US Class Current: 200/5.A
• CPC Class Codes: G02F 1/13338 Input devices, e.g. touch panels
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/0443 using a single layer of sensing electrodes
• 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

The present disclosure relates to an in-cell touch panel embedded into the flat panel display devices. The present disclosure suggests an in-cell touch panel for flat panel display device comprising: a transparent substrate; a routing part having a conductive material formed on an inner side of the transparent substrate; a plurality of sensor lines running to a first direction on the inner side of the transparent substrate; a plurality of driving lines that each driving line has a plurality of segments running to a second direction between the sensor lines; a first insulating layer covering the sensor lines and the driving lines; a connecting part linking the segments of the driving line to the second direction; and a second insulating layer covering the whole surface of the transparent substrate having the connecting part.

Claims

1. An in-cell touch panel for flat panel display device comprising:

a transparent substrate;

a routing part having a conductive material on an inner side of the transparent substrate;

a plurality of sensor lines running to a first direction on the inner side of the transparent substrate;

a plurality of driving lines that each driving line has a plurality of segments running to a second direction between the sensor lines;

a first insulating layer covering the sensor lines and the driving lines;

a connecting part linking the segments of the driving line to the second direction; and

a second insulating layer covering the whole surface of the transparent substrate having the connecting part.

2. The device according to the claim 1, wherein the first insulating layer and the second insulating layer include a dielectric material having the dielectric property of 3 F/m or less.

3. The device according to the claim 1, further comprising:

a contact hole exposing an outer end of the routing part through the first insulating layer and the second insulating layer; and

an external connecting pad contacting the exposed outer end of the routing part through the contact hole.

4. The device according to the claim 1, further comprising:

a polarizer film attaching on an outer surface of the transparent substrate; and

a toughened glass attaching on the polarizer film.