Touch display panel and touch display apparatus

Patent metadata

Field	Value
Publication number	US-9544981-B2
Application number	US-201314364204-A
Country	US
Kind code	B2
Filing date	Dec 17, 2013
Priority date	Sep 30, 2013
Publication date	Jan 10, 2017
Grant date	Jan 10, 2017

Abstract

The embodiments of the present disclosure disclose a touch display panel and a touch display apparatus and relate to the technical field of display, which can realize the function of preventing the static damage without affecting the touch control function. The touch display panel in the present disclosure is arranged with driving electrodes and sensing electrodes, and is further arranged with an anti-static layer which is correspondingly distributed in regions of the touch display panel other than sensing regions including overlapped regions of the driving electrodes and the sensing electrodes; and a controllable switch through which the anti-static layer is grounded.

First claim

What is claimed is:

1. A touch display panel comprising:
a driving electrode layer arranged with driving electrodes,
a sensing electrode layer arranged with sensing electrodes;
an anti-static layer arranged with conductive anti-static patterns each of which does not overlap spatially overlapped regions of the driving electrodes and the sensing electrodes; and
a controllable switch through which the anti-static layer is grounded,

wherein the anti-static layer is different from the sensing electrode layer and the driving electrode layer, and the driving electrode layer is different from the sensing electrode layer.

2. The touch display panel of claim 1 , wherein
the controllable switch is closed to make the anti-static layer grounded when the touch display panel is in a display state; and
the controllable switch is open to make the anti-static layer in a suspended state when the touch display panel is in a touch sensitive state.

3. The touch display panel of claim 2 , wherein
the controllable switch includes: two terminals, one of which is connected to the anti-static layer and the other one of which is grounded; and one control terminal for inputting a first control signal.

4. The touch display panel of claim 1 , wherein the anti-static layer is a transparent conductive layer.

5. The touch display panel of claim 1 , wherein the anti-static layer further includes pattern wires and peripheral leads at edges of the touch display panel;
the conductive anti-static patterns are all connected through the pattern wires to the peripheral leads which are connected to the controllable switch.

6. The touch display panel of claim 5 , wherein the peripheral leads are connected to the controllable switch through a flexible printed circuit board or conductive wires.

7. The touch display panel of claim 1 , wherein the touch display panel further includes a color filter substrate, an array substrate and a liquid crystal layer sandwiched therebetween; and
the anti-static layer is arranged on the color filter substrate,
the driving electrode layer is arranged on the array substrate, and
the sensing electrode layer is arranged between the color filter substrate and the liquid crystal layer.

8. The touch display panel of claim 7 , wherein
the anti-static layer is arranged at a side of the color filter substrate which is away from the liquid crystal layer.

9. A touch display apparatus including the touch display panel of claim 1 .

10. The touch display apparatus of claim 9 , wherein
the controllable switch is closed to make the anti-static layer grounded when the touch display panel is in a display state; and
the controllable switch is open to make the anti-static layer in a suspended state when the touch display panel is in a touch sensitive state.

11. The touch display apparatus of claim 10 , wherein
the controllable switch includes: two terminals, one of which is connected to the anti-static layer and the other one of which is grounded; and one control terminal for inputting a first control signal.

12. The touch display apparatus of claim 9 , wherein the anti-static layer is a transparent conductive layer.

13. The touch display apparatus of claim 9 , wherein the anti-static layer further includes pattern wires and peripheral leads at edges of the touch display panel;
the conductive anti-static patterns are all connected through the pattern wires to the peripheral leads which are connected to the controllable switch.

14. The touch display apparatus of claim 13 , wherein the peripheral leads are connected to the controllable switch through a flexible printed circuit board or conductive wires.

15. The touch display apparatus of claim 9 , wherein the touch display panel further includes a color filter substrate, an array substrate and a liquid crystal layer sandwiched therebetween; and
the anti-static layer is arranged on the color filter substrate,
the driving electrode layer is arranged on the array substrate, and
the sensing electrode layer is arranged between the color filter substrate and the liquid crystal layer.

16. The touch display apparatus of claim 15 , wherein
the anti-static layer is arranged at a side of the color filter substrate which is away from the liquid crystal layer.

Assignees

• Boe Technology Group Co Ltd

Inventors

• Zhang Yuanbo
• Han Seung Woo
• Qin Wei
• Ma Ruoyu

Classifications

• G06F3/041

  Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means · CPC title

• G02F2202/22

  Antistatic materials or arrangements · CPC title

• H05F1/00 Primary

  Preventing the formation of electrostatic charges · CPC title

• G02F1/13338

  Input devices, e.g. touch panels · CPC title

• G06F3/0446

  using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes · CPC title