DISPLAY DEVICE WITH TOUCH SCREEN

• US 20150035761A1
• Filed: 12/30/2013
• Published: 02/05/2015
• Est. Priority Date: 07/31/2013
• Status: Active Grant

• Current Assignee: LG Display Co., Ltd.
• Original Assignee: LG Display Co., Ltd.
• Inventors: SEO, Sang-Woo, LEE, Jung-Hwan
• Granted Patent: US 9,152,267 B2
• Time in Patent Office: Days
• US Class Current: 345/173
• 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 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.

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 display in the first area and the second area.

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

5. The device according to claim 1, wherein distances between adjacent first electrode strings become narrow from the first area to the second area.

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

7. The device according to claim 1, wherein distances between adjacent second electrode strings become narrow from the first area to the second area.

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

9. 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 a distance between adjacent first electrode strings in the second area is narrower than a distance between adjacent first electrode strings in the first area, or a distance between adjacent second electrode strings in the second area is narrower than a distance between adjacent second electrode strings in the first area.

10. The device according to claim 9, wherein images are display in the first area and the second area.

11. The device according to claim 9, 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.

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

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

14. The device according to claim 11, wherein the angular part is a right-angle part.

15. The device according to claim 11, wherein at least two second electrode strings are formed at each of both sides of the angular part in the second area.

16. The device according to claim 9, wherein the first electrode strings are driving electrode strings and the second electrode strings are sensing electrode strings.