Touch display device

Patent metadata

Field	Value
Publication number	US-11762230-B2
Application number	US-202117203767-A
Country	US
Kind code	B2
Filing date	Mar 17, 2021
Priority date	Feb 9, 2021
Publication date	Sep 19, 2023
Grant date	Sep 19, 2023

Abstract

The application discloses a touch display device including a touch display panel and a light source structure. The touch display panel has a first side used to display and a second d side opposite to the first side. The touch display panel includes a color filter substrate and an array substrate. The color filter substrate includes a color filter base having a first surface. The array substrate includes an array base having a second surface. At least one touch wiring layer is arranged on one of the first surface and the second surface. A light source structure arranged on a display side of the touch display panel is used to emit light to the touch display panel.

First claim

What is claimed is:

1. A touch display device, comprising:
a touch display panel having a first side configured to display and a second side opposite to the first side, the touch display panel comprising:
a color filter substrate comprising a color filter base having a first surface; and
an array substrate opposite to the color filter substrate and comprising an array base having a second surface; and
at least one touch wiring layer arranged on one of the first surface and the second surface;
a light source structure being arranged on the first side of the touch display panel and configured to emit light to the touch display panel;
a first polarizer, arranged on the second side of the touch display panel; and
a second polarizer, arranged on the first side of the touch display panel and located between the touch display panel and the light source structure.

2. The touch display device according to claim 1 , wherein the first polarizer is a reflective polarizer.

3. The touch display device according to claim 1 , further comprising a panel driving device, the panel driving device is arranged on the second side of the touch display panel, and the panel driving device is connected to the array substrate through a first flexible circuit board.

4. The touch display device according to claim 3 , wherein the at least one touch wiring layer is connected to the panel driving device through a second flexible circuit board.

5. The touch display device according to claim 1 , wherein the color filter substrate further comprises a functional film layer, the color filter base has a third surface opposite to the first surface;
the at least one touch wiring layer is disposed on the first surface; and
the functional film layer is disposed on the third surface.

6. The touch display device according to claim 5 , the functional film layer is a color resist layer.

7. The touch display device according to claim 6 , wherein the at least one touch wiring layer has a fourth surface which is not in contact with the first surface of the color filter base;
a protective layer is coated on the fourth surface of the at least one touch wiring layer to isolate the at least one touch wiring layer.

8. The touch display device according to claim 1 , wherein the light source structure comprises a light source assembly and a light guide plate, the light source assembly and the light guide plate are arranged on the first side of the touch display panel side by side.

9. The touch display device according to claim 8 , further comprising a cover plate, arranged on one side of the light source structure away from the touch display panel.

10. The touch display device according to claim 9 , wherein the cover plate and the light source structure are bonded by optical clear resin or optically clear adhesive, a material of the cover plate is selected from one of polyterephthalic acid plastic, polycarbonate, polymethyl methacrylate and glass.

11. The touch display device according to claim 10 , wherein a material of the color filter substrate is selected from one of polyterephthalic acid plastic, polycarbonate, polymethyl methacrylate and glass;
a material of the array substrate is selected from one of polyterephthalic acid plastic, polycarbonate, polymethyl methacrylate and glass.

12. The touch display device according to claim 11 , wherein a material of the at least one touch wiring layer is indium tin oxide or silver.

13. The touch display device according to claim 8 , wherein the light source assembly and the light guide plate are arranged on the first side of the touch display panel.

Assignees

• Jrd Communication Shenzhen Ltd

Inventors

• Xi Yafang
• Lin Ke
• Chen Ping
• Xiong Panwei

Classifications

• G06F3/0412 Primary

  Digitisers structurally integrated in a display · CPC title

• G02F1/13338 Primary

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

• G06F2203/04103

  Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices · CPC title

• G06F3/04164

  Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads · CPC title

• G02F1/133536

  Reflective polarizers (G02F1/13362 takes precedence) · CPC title