Touch display device

• US 10,545,596 B2
• Filed: 07/05/2018
• Issued: 01/28/2020
• Est. Priority Date: 06/14/2018
• Status: Active Grant

• Current Assignee: Interface Optoelectronics (ShenZhen) Co., Ltd. (Cloud Software Group), General Interface Solution Limited (General Interface Solution (GIS) Holding Ltd.), Interface Technology (Chengdu) Co., Ltd.
• Original Assignee: Interface Technology (Chengdu) Co., Ltd.
• Inventors: Tsai, Han Lung, Chen, Ping Yang
• Primary Examiner(s): Karimi, Pegeman
• Application Number:
  US16/027,703
• Publication Number:
  US 20190384435A1
• Time in Patent Office: 572 Days
• CPC Class Codes: G06F 2203/04103 Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
• CPC Class Codes: G06F 2203/04111 Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate
• CPC Class Codes: G06F 2203/04112 Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material
• 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: H10K 2102/311 Flexible OLED
• CPC Class Codes: H10K 50/86 Arrangements for improving contrast, e.g. preventing reflection of ambient light
• CPC Class Codes: H10K 59/40 OLEDs integrated with touch screens
• CPC Class Codes: H10K 59/8791 Arrangements for improving contrast, e.g. preventing reflection of ambient light
• CPC Class Codes: H10K 77/111 Flexible substrates
• CPC Class Codes: Y02E 10/549 Organic PV cells
• CPC Class Codes: Y02P 70/50 Manufacturing or production processes characterised by the final manufactured product

Abstract

A touch display device includes a transparent substrate, a first transparent touch layer, a plurality of first conductive traces, a ring-shaped transparent insulation layer, a ring-shaped metal layer, a polarizer, a first optical adhesive layer, and a transparent cover. The first transparent touch layer is arranged on the transparent substrate, the first conductive traces are arranged on the bezel region of the transparent substrate, the ring-shaped transparent insulation layer covers the first conductive traces, and the ring-shaped metal layer is arranged on the ring-shaped transparent insulation layer. The polarizer is arranged on the transparent substrate and the ring-shaped metal layer to cover the first transparent touch layer. The first optical adhesive layer and the transparent cover are sequentially arranged on the polarizer.

Claims

1. A touch display device comprising:

a transparent substrate having a first surface and a second surface opposite to the first surface, and the transparent substrate is divided into a sensing region and a bezel region surrounding the sensing region;

a first transparent touch layer formed on the first surface of the sensing region and the bezel region of the transparent substrate;

a plurality of first conductive traces formed on the first transparent touch layer on the bezel region of the transparent substrate to electrically connect to the first transparent touch layer;

a ring-shaped transparent insulation layer formed on the first surface of the bezel region of the transparent substrate to cover the plurality of first conductive traces;

a ring-shaped metal layer formed on the ring-shaped transparent insulation layer;

a polarizer formed on the sensing region of the transparent substrate and the ring-shaped metal layer to cover the first transparent touch layer;

a first optical adhesive layer formed on the polarizer; and

a transparent cover formed on the first optical adhesive layer, and the polarizer abuts against inner sidewalls of the ring-shaped transparent insulation layer and the ring-shaped metal layer.

2. The touch display device according to claim 1, wherein the ring-shaped metal layer is formed directly over the plurality of first conductive traces.

3. The touch display device according to claim 1, further comprising:

a patterned transparent insulation layer formed on the first transparent touch layer, and the patterned transparent insulation layer is penetrated with a plurality of holes to expose a part of the first transparent touch layer; and

a plurality of conductive bridges formed on the patterned transparent insulation layer and electrically connected to the first transparent touch layer under the plurality of holes through the plurality of holes, and the polarizer is formed on the patterned transparent insulation layer and the plurality of conductive bridges to cover them.

4. The touch display device according to claim 1, further comprising:

a second transparent touch layer formed on the second surface of the sensing region and the bezel region of the transparent substrate; and

a plurality of second conductive traces formed on the second transparent touch layer on the bezel region of the transparent substrate to electrically connect to the second transparent touch layer.

5. The touch display device according to claim 4, further comprising:

a second optical adhesive layer formed on the second surface of the sensing region and the bezel region of the transparent substrate to cover the second transparent touch layer and the plurality of second conductive traces; and

a light-emitting module formed on the second transparent touch layer and the plurality of second conductive traces through the second optical adhesive layer.

6. The touch display device according to claim 5, wherein the transparent substrate sideward extended to form a terminal region, the terminal region is provided with a conductive terminal thereon, the conductive terminal is provided a flexible printed circuit (FPC) thereon, one of the plurality of first conductive traces is extended to the terminal region to penetrate through the ring-shaped transparent insulation layer and electrically connect to the conductive terminal, the terminal region is bent to adhere the terminal region provided with the FPC to the light-emitting module through an adhesive.

7. The touch display device according to claim 4, wherein the ring-shaped metal layer is formed directly over the plurality of second conductive traces.

8. The touch display device according to claim 1, further comprising:

a second optical adhesive layer formed on the second surface of the sensing region and the bezel region of the transparent substrate; and

a light-emitting module formed on the second surface of the sensing region and the bezel region of the transparent substrate through the second optical adhesive layer.

9. The touch display device according to claim 8, wherein the transparent substrate sideward extended to form a terminal region, the terminal region is provided with a conductive terminal thereon, the conductive terminal is provided a flexible printed circuit (FPC) thereon, one of the plurality of first conductive traces is extended to the terminal region to penetrate through the ring-shaped transparent insulation layer and electrically connect to the conductive terminal, the terminal region is bent to adhere the terminal region provided with the FPC to the light-emitting module through an adhesive.

10. The touch display device according to claim 1, wherein the ring-shaped metal layer comprises CuNi or AlMo.