# US 10,120,472 B2 · Touch display panel

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- Number: US 10,120,472 B2
- Document ID: US10120472B2
- Status: Granted
- Kind: B2
- Application number: 14/572,798
- Filed: 2014-12-17
- Published: 2015-10-29
- Granted: 2018-11-06
- Earliest claimed: 2014-04-29
- Assignees: TPK Touch Solutions (Xiamen) Inc.
- Applicants: Tpk Touch Solutions (Xiamen) Inc.
- Inventors: Kwan-Sin Ho; Zhiming Pu; Hua Yun; Huanyu Zhang
- Web page: https://patentgrep.com/patent/US10120472B2

## CPC

- G06F 3/0412: {Digitisers structurally integrated in a display}
- G02B 5/3025: {Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state (G02B5/3008, G02B5/3016 take precedence)}
- G06F 2203/04103: Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS

## Abstract

A touch display panel includes a display module, a polarizer, a first touch electrode structure and a second touch electrode structure. The display module has a substrate. The polarizer is disposed opposite to the display module. The first touch electrode structure and the second touch electrode structure are electrically insulated to each other and are disposed between the polarizer and the substrate of the display module.

## Claims

### Claim 1

A touch display panel, comprising:
a display module comprising a color filter substrate, a TFT substrate, and a liquid crystal layer, wherein the liquid crystal layer is disposed between the color filter substrate and the TFT substrate;
a polarizer disposed opposite to the display module;
a first touch electrode structure;
a second touch electrode structure, wherein the first touch electrode structure and the second touch electrode structure are electrically insulated from each other at least by an adhesive layer and are disposed between the polarizer and the color filter substrate of the display module;
a transparent substrate located between the display module and the polarizer;
an additional adhesive layer, located between the transparent substrate and the display module; and
a shielding layer, disposed below the polarizer, and the shielding layer is located at the side edge area of the polarizer.

### Claim 2 (depends on 1)

The touch display panel of claim 1, wherein:
the first touch electrode structure is disposed below the polarizer, and
the adhesive layer is disposed below the first touch electrode structure.

### Claim 3 (depends on 2)

The touch display panel of claim 2, wherein:
the second touch electrode structure is disposed on the color filter substrate, and
the transparent substrate is disposed below the adhesive layer and
the additional adhesive layer is located between the transparent substrate and the second touch electrode structure.

### Claim 4 (depends on 2)

The touch display panel of claim 2, wherein
the transparent substrate is disposed below the adhesive layer;
the second touch electrode structure is disposed below the transparent substrate and
the additional adhesive layer is located between the second touch electrode structure and the color filter substrate.

### Claim 5 (depends on 2)

The touch display panel of claim 2, wherein
the second touch electrode structure is disposed below the adhesive layer;
the transparent substrate is disposed below the second touch electrode structure; and
the additional adhesive layer is located between the transparent substrate and the color filter substrate.

### Claim 6 (depends on 1)

The touch display panel of claim 1, wherein at least one of the first touch electrode structure or the second touch electrode structure comprises a metal nanowire, a transparent conductive film or a metal mesh.

### Claim 7

A touch display panel, comprising:
a display module comprising a substrate, a TFT substrate, and an organic stack disposed therebetween;
a polarizer disposed opposite to the display module;
a transparent substrate disposed on the polarizer;
a first touch electrode structure disposed on the transparent substrate;
a second touch electrode structure in direct contact with the substrate; and
an adhesive layer in direct contact with the first touch electrode structure and the second touch electrode structure;
wherein the first touch electrode structure and the second touch electrode structure are electrically insulated from each other and are disposed between the polarizer and the substrate of the display module; and
a shielding layer, is disposed below the polarizer, and the shielding layer is located at the side edge area of the polarizer.

### Claim 8 (depends on 7)

The touch display panel of claim 7, wherein at least one of the first touch electrode structure or the second touch electrode structure comprises a metal nanowire, a transparent conductive film or a metal mesh.

### Claim 9 (depends on 7)

The touch display panel of claim 7, further comprising:
a shielding layer, disposed below the transparent substrate.

### Claim 10 (depends on 9)

The touch display panel of claim 9, wherein the adhesive layer is formed corresponding to the area of the shielding layer.

### Claim 11 (depends on 1)

The touch display panel of claim 1, wherein at least one of the adhesive layer or the additional adhesive layer is formed corresponding to the area of the shielding layer.