# US 10,503,337 B2 · Touch display device

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- Number: US 10,503,337 B2
- Document ID: US10503337B2
- Status: Granted
- Kind: B2
- Application number: 16/021,268
- Filed: 2018-06-28
- Published: 2019-09-19
- Granted: 2019-12-10
- Earliest claimed: 2018-03-14
- Assignees: Interface Technology (ChengDu) Co., Ltd.; Interface Optoelectronics (Shenzhen) Co., Ltd.; General Interface Solution Limited
- Applicants: Interface Technology (ChengDu) Co., Ltd.; Interface Optoelectronics (Shenzhen) Co., Ltd.; General Interface Solution Limited
- Inventors: Chien-Hung Lin
- Web page: https://patentgrep.com/patent/US10503337B2

## CPC

- G06F 3/041: Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F 3/044: by capacitive means
- G06F 3/0445: {using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer}
- H10K 59/40: OLEDs integrated with touch screens
- H10K 59/12: Active-matrix OLED [AMOLED] displays
- H10K 59/871: {Self-supporting sealing arrangements}
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES

## Abstract

A touch display device includes a display panel, a covering layer on the display panel and configured for covering the display panel, a touch sensing layer on a side of covering layer away from the display panel, and a polarizer on a side of covering layer away from the display panel. The touch sensing layer includes a first touch electrode layer and a second touch electrode layer electrically insulated from the first touch electrode layer. The first touch electrode layer is on and in direct contact with the polarizer; the second touch electrode layer is on and in direct contact with the covering layer.

## Claims

### Claim 1

A touch display device comprising:
a display panel;
a covering layer on the display panel and configured for covering the display panel;
a touch sensing layer on a side of covering layer away from the display panel, the touch sensing layer comprising a first touch electrode layer and a second touch electrode layer electrically insulated from the first touch electrode layer; and
a polarizer on a side of covering layer away from the display panel;
wherein the first touch electrode layer is on and in direct contact with the polarizer; the second touch electrode layer is on and in direct contact with the covering layer.

### Claim 2 (depends on 1)

The touch display device of claim 1, wherein the first touch electrode layer is located on a side of the polarizer away from the covering layer.

### Claim 3 (depends on 2)

The touch display device of claim 2, wherein the second touch electrode layer is located on a side of the covering layer adjacent to the polarizer; the polarizer is made of an electrically-insulating material.

### Claim 4 (depends on 3)

The touch display device of claim 3, wherein an adhesive layer is between the polarizer and the second touch electrode layer; the adhesive layer is made of an electrically-insulating material.

### Claim 5 (depends on 1)

The touch display device of claim 1, wherein the first touch electrode layer is located on a side of the polarizer adjacent to the covering layer.

### Claim 6 (depends on 5)

The touch display device of claim 5, wherein the second touch electrode layer is located on a side of the covering layer adjacent to the polarizer.

### Claim 7 (depends on 6)

The touch display device of claim 6, wherein an adhesive layer is between the first touch electrode layer and the second touch electrode layer; the adhesive layer is made of an electrically-insulating material.

### Claim 8 (depends on 1)

The touch display device of claim 1, wherein the display panel is an OLED display panel; the display panel comprises a substrate, a driving layer and a light-emitting element layer on the substrate; the driving layer is between the substrate and the light-emitting element layer.

### Claim 9 (depends on 8)

The touch display device of claim 8, wherein the driving layer comprises a thin film transistor array.

### Claim 10 (depends on 8)

The touch display device of claim 8, further comprising a frame between the substrate and the covering layer; the frame surrounds the light-emitting element layer and the driving layer and encloses the light-emitting element layer and the driving layer between the substrate and the covering layer.