TOUCH DISPLAY PANEL AND DISPLAY DEVICE

• US 20160291725A1
• Filed: 01/15/2016
• Published: 10/06/2016
• Est. Priority Date: 04/01/2015
• Status: Active Grant

• Current Assignee: Shanghai Tianma Micro-Electronics Company Limited (Tianma Microelectronics Company Limited), Tianma Microelectronics Company Limited
• Original Assignee: Shanghai Tianma Micro-Electronics Company Limited (Tianma Microelectronics Company Limited), Tianma Microelectronics Company Limited
• Inventors: Zhai, Yingteng
• Granted Patent: US 10,452,208 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 2203/04103 Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/04164 Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
• CPC Class Codes: G06F 3/044 by capacitive means
• CPC Class Codes: G06F 3/0443 using a single layer of sensing electrodes

Abstract

A touch display panel is provided. The touch display panel includes a touch electrode layer and a plurality of first signal lines, where the touch electrode layer includes a plurality of first electrode blocks, and each of the first electrode blocks is electrically connected to a corresponding first signal line. The touch display panel further includes a plurality of second signal lines, where a projection region of the first electrode block in a direction perpendicular to the touch display panel includes at least one second signal line, and the second signal line is insulated from the first electrode block.

Claims

1. A touch display panel comprising a touch electrode layer and a plurality of first signal lines, wherein the touch electrode layer comprises a plurality of first electrode blocks, and each of the plurality of first electrode blocks is electrically connected to a corresponding first signal line, and the touch display panel further comprises:

a plurality of second signal lines, wherein a projection region of a first electrode block in a direction perpendicular to the touch display panel comprises at least one second signal line, and a second signal line is insulated from the first electrode block.

2. The touch display panel according to claim 1, wherein the second signal line is applied a drive signal, and the first signal line is applied a sensing signal.

3. The touch display panel according to claim 1, wherein the second signal line is floating or connected to a stable level, and the first signal line is applied both drive signal and sensing signal.

4. The touch display panel according to claim 1, further comprising a second signal bus, wherein the plurality of second signal lines are electrically connected to the second signal bus.

5. The touch display panel according to claim 4, further comprising a display area, wherein the plurality of second signal lines distributes in a comb-like pattern in the display area.

6. The touch display panel according to claim 4, further comprising a display area, wherein the plurality of second signal lines distribute in a grid-like pattern in the display area.

7. The touch display panel according to claim 1, wherein the first signal lines and the plurality of second signal lines are disposed in a same conducting layer.

8. The touch display panel according to claim 1, wherein the first signal lines and the plurality of second signal lines are disposed in different conducting layers.

9. The touch display panel according to claim 1, wherein a material of the first signal lines is ITO.

10. The touch display panel according to claim 1, wherein a material of the plurality of second signal lines is metal.

11. The touch display panel according to claim 1, further comprising a plurality of second electrode blocks, wherein the first electrode block is insulated from the second electrode block, and the second electrode block is electrically connected to the second signal line.

12. The touch display panel according to claim 11, wherein the plurality of second electrode blocks are electrically connected through the third signal bus.

13. The touch display panel according to claim 11, wherein the second electrode blocks and the first signal lines are disposed in a same conducting layer, or the second electrode blocks and a common electrode layer are disposed in a same conducting layer.

14. The touch display panel according to claim 11, wherein an area of each of the second electrode blocks is smaller than that of the first electrode block.

15. The touch display panel according to claim 14, wherein each of the first electrode blocks is disposed in a projection area of the corresponding second electrode block along the direction perpendicular to the touch display panel.

16. A display device comprising a touch display panel, wherein the touch display panel comprises a touch electrode layer and a plurality of first signal lines, wherein the touch electrode layer comprises a plurality of first electrode blocks, and each of the plurality of first electrode blocks is electrically connected to a corresponding first signal line, and the touch display panel further comprises:

a plurality of second signal lines, wherein a projection region of a first electrode block in a direction perpendicular to the touch display panel includes at least one second signal line, and a second signal line is insulated from the first electrode block.