Touch-controlled display panel and touch-controlled display device

• US 9,411,453 B2
• Filed: 03/11/2014
• Issued: 08/09/2016
• Est. Priority Date: 02/20/2014
• Status: Active Grant

• Current Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd. (TCL Technology Group Corp.)
• Original Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd. (TCL Technology Group Corp.)
• Inventors: Chang, Chun Kai, Lin, Yung-Lun, Qiu, Jie, Ye, Chengliang, Fu, Ruhai
• Primary Examiner(s): Mummalaneni, Nalini
• Assistant Examiner(s): MARTINEZ QUILES, IVELISSE
• Application Number:
  US14/373,637
• Publication Number:
  US 20150234510A1
• Time in Patent Office: 882 Days
• US Class Current: 1/1
• CPC Class Codes: G02F 1/13338 Input devices, e.g. touch panels
• CPC Class Codes: G02F 1/136286 Wiring, e.g. gate line, drain line
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• 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 invention provides a touch-controlled display panel, which comprises an array substrate, a color filter substrate, and a liquid crystal layer disposed between the array substrate and the color filter substrate. The array substrate comprises a scan line, a data line, a pixel electrode, a first touch-controlled driving line, and a touch-controlled sensing line. The present invention further provides a touch-controlled display device. The present invention integrates the common line with the touch-controlled driving line and the touch-controlled sensing line, thereby improving the efficiency in manufacturing the touch-controlled display panel and reducing the manufacture cost thereof.

Claims

1. A touch-controlled display panel, which comprises an array substrate, a color filter substrate, and a liquid crystal layer disposed between the array substrate and the color filter substrate, wherein the array substrate comprises:

a scan line disposed on a first metal layer, for transmitting a scan signal;

a data line disposed on a second metal layer, for transmitting a data signal;

a pixel electrode for receiving the data signal of the data line according to the scan signal of the scan line, the pixel electrode being connected to the data line and the scan line corresponding thereto via a thin-film transistor;

a first touch-controlled driving line disposed on the first metal layer and parallel to the scan line, for providing a common signal for the pixel electrode and a touch-controlled driving signal;

a touch-controlled sensing line disposed on the second metal layer and parallel to the data line, for receiving the common signal for the pixel electrode and a touch-controlled sensing signal;

a second touch-controlled driving line disposed on the first metal layer and parallel to the data line, for providing the common signal for the pixel electrode and the touch-controlled driving signal, the second touch-controlled driving line being connected to the first touch-controlled driving line corresponding thereto; and

a third touch-controlled driving line disposed on the second metal layer and parallel to the data line, for receiving the common signal for the pixel electrode and the touch-controlled sensing signal, the third touch-controlled driving line being connected to the second touch-controlled driving line corresponding thereto;

wherein the third touch-controlled driving line is connected to the corresponding second touch-controlled driving line located on the first metal layer, via a contact hole, and the second touch-controlled driving line and the third touch-controlled driving line have a one-to-one correspondence.

2. The touch-controlled display panel according to claim 1, wherein at least one first touch-controlled driving line forms a first touch-controlled driving region and at least one touch-controlled sensing line forms a touch-controlled sensing region.

3. The touch-controlled display panel according to claim 2, wherein a lengthwise direction of the first touch-controlled driving region is perpendicular to that of the touch-controlled sensing region.

4. The touch-controlled display panel according to claim 2, wherein the array substrate further comprises:

a first ground line disposed on the second metal layer and parallel to the data line, for providing the common signal for the pixel electrode and a ground signal; and

a second ground line disposed on the first metal layer and parallel to the scan line, for providing the common signal for the pixel electrode and the ground signal;

wherein the first ground line is disposed between any two adjacent touch-controlled sensing regions, and the second ground line is disposed between any two adjacent first touch-controlled driving regions.

5. The touch-controlled display panel according to claim 2, wherein at least one second touch-controlled driving line and the third touch-controlled driving line corresponding thereto form a second touch-controlled driving region, and at least one touch-controlled sensing line forms a touch-controlled sensing region.

6. The touch-controlled display panel according to claim 5, wherein a lengthwise direction of the second touch-controlled driving region is parallel to that of the touch-controlled sensing region.

7. The touch-controlled display panel according to claim 5, wherein the second touch-controlled driving region and the touch-controlled sensing region are arranged at intervals.

8. The touch-controlled display panel according to claim 5, wherein the array substrate further comprises:

a first ground line disposed on the second metal layer and parallel to the data line, for providing the common signal for the pixel electrode and a ground signal;

wherein the first ground line is disposed between the touch-controlled sensing region and the second touch-controlled driving region adjacent thereto.

9. A touch-controlled display device, comprising:

a backlight source; and

a touch-controlled display panel comprising an array substrate, a color filter substrate, and a liquid crystal layer disposed between the array substrate and the color filter substrate;

wherein the array substrate comprises;

a scan line disposed on a first metal layer, for transmitting a scan signal;

a data line disposed on a second metal layer, for transmitting a data signal;

a pixel electrode for receiving the data signal of the data line according to the scan signal of the scan line, the pixel electrode being connected to the data line and the scan line corresponding thereto via a thin-film transistor;

a first touch-controlled driving line disposed on the first metal layer and parallel to the scan line, for providing a common signal for the pixel electrode and a touch-controlled driving signal;

a touch-controlled sensing line disposed on the second metal layer and parallel to the data line, for receiving the common signal for the pixel electrode and a touch-controlled sensing signal;

a second touch-controlled driving line disposed on the first metal layer and parallel to the data line, for providing the common signal for the pixel electrode and the touch-controlled driving signal, the second touch-controlled driving line being connected to the first touch-controlled driving line corresponding thereto; and

a third touch-controlled driving line disposed on the second metal layer and parallel to the data line, for receiving the common signal for the pixel electrode and the touch-controlled sensing signal, the third touch-controlled driving line being connected to the second touch-controlled driving line corresponding thereto;

wherein the third touch-controlled driving line is connected to the corresponding second touch-controlled driving line located on the first metal layer, via a contact hole, and the second touch-controlled driving line and the third touch-controlled driving line have a one-to-one correspondence.

10. The touch-controlled display device according to claim 9, wherein at least one first touch-controlled driving line forms a first touch-controlled driving region and at least one touch-controlled sensing line forms a touch-controlled sensing region.

11. The touch-controlled display device according to claim 10, wherein a lengthwise direction of the first touch-controlled driving region is perpendicular to that of the touch-controlled sensing region.

12. The touch-controlled display device according to claim 10, wherein the array substrate further comprises:

a first ground line disposed on the second metal layer and parallel to the data line, for providing the common signal for the pixel electrode and a ground signal; and

a second ground line disposed on the first metal layer and parallel to the scan line, for providing the common signal for the pixel electrode and the ground signal;

wherein the first ground line is disposed between any two adjacent touch-controlled sensing regions, and the second ground line is disposed between any two adjacent first touch-controlled driving regions.

13. The touch-controlled display device according to claim 10, wherein at least one second touch-controlled driving line and the third touch-controlled driving line corresponding thereto form a second touch-controlled driving region, and at least one touch-controlled sensing line forms a touch-controlled sensing region.

14. The touch-controlled display device according to claim 13, wherein a lengthwise direction of the second touch-controlled driving region is parallel to that of the touch-controlled sensing region.

15. The touch-controlled display device according to claim 13, wherein the second touch-controlled driving region and the touch-controlled sensing region are arranged at intervals.

16. The touch-controlled display device according to claim 13, wherein the array substrate further comprises:

a first ground line disposed on the second metal layer and parallel to the data line, for providing the common signal for the pixel electrode and a ground signal;

wherein the first ground line is disposed between the touch-controlled sensing region and the second touch-controlled driving region adjacent thereto.