Display device with touch screen

• US 9,152,267 B2
• Filed: 12/30/2013
• Issued: 10/06/2015
• Est. Priority Date: 07/31/2013
• Status: Expired due to Fees

• Current Assignee: LG Display Co., Ltd.
• Original Assignee: LG Display Co., Ltd.
• Inventors: Seo, Sang-Woo, Lee, Jung-Hwan
• Primary Examiner(s): HALEY, JOSEPH R
• Application Number:
  US14/143,111
• Publication Number:
  US 20150035761A1
• Time in Patent Office: 645 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: G06F 2203/04102 Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper
• 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 3/0445 using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer

Abstract

A display device with a touch screen includes a panel including a first area and a second area, wherein first electrode strings and second electrode strings crossing the first electrode strings are formed in the first area and the second area; a driving controller applying touch driving signals to the first electrode strings in order; and a sensing controller receiving touch sensing signals according to the touch driving signals through the second electrode strings, wherein a distance between adjacent first electrode strings in the first area is different from a distance between adjacent first electrode strings in the second area, or a distance between adjacent second electrode strings in the first area is different from a distance between adjacent second electrode strings in the second area.

Claims

1. A display device with a touch screen, comprising:

a panel including a first area and a second area, wherein first electrode strings and second electrode strings crossing the first electrode strings are formed in the first area and the second area;

a driving controller applying touch driving signals to the first electrode strings in order; and

a sensing controller receiving touch sensing signals according to the touch driving signals through the second electrode strings,

wherein the first electrode strings in the first area have substantially a same first distance therebetween, and the first electrode strings in the second area have substantially a same second distance therebetween,

wherein the second electrode strings in the first area have substantially a same third distance therebetween, and the second electrode strings in the second area have substantially a same fourth distance therebetween, and

wherein the first distance between adjacent first electrode strings in the first area is different from the second distance between adjacent first electrode strings in the second area, or the third distance between adjacent second electrode strings in the first area is different from the fourth distance between adjacent second electrode strings in the second area.

2. The device according to claim 1, wherein the first area is a non-bending area in which the panel is flat and the second area is a bending area in which the panel is curvedly bent.

3. The device according to claim 1, wherein images are displayed in the first area and the second area.

4. The device according to claim 1, wherein the second distance between adjacent first electrode strings in the second area is narrower than the first distance between adjacent first electrode strings in the first area.

5. The device according to claim 1, wherein the fourth distance between adjacent second electrode strings in the second area is narrower than the third distance between adjacent second electrode strings in the first area.

6. The device according to claim 1, wherein the first electrode strings are driving electrode strings and the second electrode strings are sensing electrode strings.

7. A display device with a touch screen, comprising:

a panel including a first area and a second area, wherein first electrode strings and second electrode strings crossing the first electrode strings are formed in the first area and the second area;

a driving controller applying touch driving signals to the first electrode strings in order; and

a sensing controller receiving touch sensing signals according to the touch driving signals through the second electrode strings,

wherein the first electrode strings in the first area have substantially a same first distance therebetween, and the first electrode strings in the second area have substantially a same second distance therebetween,

wherein the second electrode strings in the first area have substantially a same third distance therebetween, and the second electrode strings in the second area have substantially a same fourth distance therebetween, and

wherein the second distance between adjacent first electrode strings in the second area is narrower than the first distance between adjacent first electrode strings in the first area, or the fourth distance between adjacent second electrode strings in the second area is narrower than the third distance between adjacent second electrode strings in the first area.

8. The device according to claim 7, wherein images are displayed in the first area and the second area.

9. The device according to claim 7, wherein the first area is a center area in which the panel is flat and the second area is an edge area in which the panel includes an angular part.

10. The device according to claim 9, wherein the angular part is an acute-angle part.

11. The device according to claim 9, wherein the angular part is an obtuse-angle part.

12. The device according to claim 9, wherein the angular part is a right-angle part.

13. The device according to claim 9, wherein at least two second electrode strings are formed at each of both sides of the angular part in the second area.

14. The device according to claim 7, wherein the first electrode strings are driving electrode strings and the second electrode strings are sensing electrode strings.