TOUCH SCREEN PANEL

• US 20160048246A1
• Filed: 02/10/2015
• Published: 02/18/2016
• Est. Priority Date: 08/14/2014
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: PARK, Jungmok
• Granted Patent: US 10,007,384 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 3/04164 Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
• CPC Class Codes: G06F 3/04166 Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally G06F3/04184
• 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
• 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

A touch screen panel includes a touch recognition area that recognizes a touch input and a non-recognition area that does not recognize the touch input. The touch recognition area includes first touch electrodes connected in a first direction and second touch electrodes connected in a second direction orthogonal to the first direction. The non-recognition area includes a driver that obtains coordinate information of the touch input by using the first and second touch electrodes and outer wires connecting the first and second touch electrodes and the driver.

Claims

1. A touch screen panel, comprising:

a touch recognition area that recognizes a touch input; and

a non-recognition area that does not recognize the touch input,

wherein the touch recognition area includes first touch electrodes connected in a first direction and second touch electrodes connected in a second direction orthogonal to the first direction,

wherein the non-recognition area includes a driver to obtain coordinate information of the touch input using the first and second touch electrodes, and outer wires connecting the first and second touch electrodes and the driver,

wherein the touch recognition area is divided into first to fourth areas based on a first reference line and a second reference line,

wherein the first reference line passes though a weight center of the touch recognition area and divides the touch recognition area in the first direction, and the second reference line passes through the weight center and divide the touch recognition area in the second direction,

wherein the first and third area facing each other based on the weight center and the second and fourth area facing each other based on the weight center,

wherein the outer wires include first outer wires connecting first outermost touch electrodes, among the first touch electrodes, at the outermost of the first and third area to the driver; and

second outer wires connecting second outermost touch electrodes, among the second touch electrodes, at the outermost of the second and fourth area to the driver.

2. The panel as claimed in claim 1, wherein boundaries of the touch screen area are not parallel to the first and second reference line.

3. The panel as claimed in claim 2, wherein the touch recognition area has one of a circular form, an oval form, a rhombic form, and a hexagonal form.

4. The panel as claimed in claim 1, further comprising:

first connection parts connecting the first touch electrodes in the first direction; and

second connection parts connecting the second touch electrodes in the second direction.

5. The panel as claimed in claim 4, wherein

first touch electrodes connected by the first connection parts are arranged in the second direction;

and

second touch electrodes connected by the second connection parts are arranged in the first direction.

6. The panel as claimed in claim 5, wherein the first or second direction is or is not parallel to an imaginary line connecting a weight center of the driver and the weight center of the touch recognition area.

7. The panel as claimed in claim 5, wherein the second touch electrodes, the first connection parts, and the first touch electrode are on the same layer;

and

the first connection part and the first and second touch electrodes are covered by a blocking layer.

8. The panel as claimed in claim 7, wherein the second connection parts are disposed on the blocking layer and the second touch electrodes are connected in the second direction through contact holes penetrating the blocking layer.

9. The panel as claimed in claim 5, wherein first touch electrodes connected by the first connection parts and second touch electrodes connected by the second connection parts are on different layers.

10. The panel as claimed in claim 1, wherein the driver includes a first driving chip transmitting scan signals to the first touch electrodes and receiving detection signals corresponding to the scan signals from the second touch electrodes.

11. The panel as claimed in claim 10, wherein:

the first outer wires connect the first outermost touch electrodes and the first driving chip, and

the second outer wires connect the second outermost touch electrodes and the first driving chip.

12. The panel as claimed in claim 10, wherein the driver further includes a second driving chip at a different position than the first driving chip in the non-recognition area.

13. The panel as claimed in claim 12, wherein the first driving chip and the second driving chip face each other based on the touch recognition area.

14. The panel as claimed in claim 13, wherein:

first outer wires of the first area and second outer wires of the second area are connected to the first driving chip at a position adjacent to the first and second area; and

first outer wires of the third area and second outer wires of the fourth area are connected to the second driving chip at a position adjacent to the third and fourth area.

15. The panel as claimed in claim 1, wherein a length of the first or second outermost touch electrode is greater than or identical to ½

of a length of a first or second touch electrode not disposed at the outermost of the first to fourth areas.