# US 2021/0333458 A1 · Polarizer sheet, display panel and display device

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- Number: US 2021/0333458 A1
- Document ID: US20210333458A1
- Status: Published application
- Kind: A1
- Application number: 16/611,482
- Filed: 2019-09-24
- Published: 2021-10-28
- Earliest claimed: 2019-04-29
- Assignees: Wuhan China Star Optoelectronics Technology Co., Ltd.
- Applicants: Wuhan China Star Optoelectronics Technology Co., Ltd.
- Inventors: Junfeng HUANG; Bocai CHEN
- Web page: https://patentgrep.com/patent/US20210333458A1

## CPC

- G02F 1/133528: {Polarisers}
- G02B 5/305: {including organic materials, e.g. polymeric layers}
- G02B 5/3058: {comprising electrically conductive elements, e.g. wire grids, conductive particles}
- G02F 1/136222: {Colour filters incorporated in the active matrix substrate}
- H04M 1/0266: {for a display module assembly}
- H10K 59/38: comprising colour filters or colour changing media [CCM]
- H10K 59/8791: {Arrangements for improving contrast, e.g. preventing reflection of ambient light}
- H10K 59/8793: {Arrangements for polarized light emission (H10K59/8791 takes precedence)}
- G02F 2202/28: Adhesive materials or arrangements
- G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08)
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES

## Abstract

A polarizer sheet, a display panel and a display device are provided. The polarizer sheet includes a supporting layer, a polarizing layer, and an electrically conductive layer. The display panel includes the polarizer sheet, a color filter substrate, an array substrate, and a silver adhesive layer. The display device includes the display panel. The invention reduces a used amount of silver adhesive, reduces cost, increases contacting area between the polarizer sheet and the color filter substrate, and increases a proportion of a screen, so that the polarizer sheet can be applied to a full screen narrow border mobile phone.

## Claims

### Claim 1

A polarizer sheet, comprising:
a supporting layer with a first surface and a second surface opposite to the first surface;
a polarizing layer disposed on the first surface of the supporting layer; and
an electrically conductive layer disposed on a surface of the polarizing layer opposite to another surface of the polarizing layer facing the supporting layer.

### Claim 2 (depends on 1)

The polarizer sheet according to claim 1, further comprising a pressure sensitive adhesive disposed on the second surface of the supporting layer.

### Claim 3 (depends on 1)

The polarizer sheet according to claim 1, wherein the polarizing layer is made of a material comprising polyvinyl alcohol.

### Claim 4 (depends on 1)

The polarizer sheet according to claim 1, wherein the supporting layer is made of a material comprising cycloolefin polymer.

### Claim 5 (depends on 1)

The polarizer sheet according to claim 1, wherein the electrically conductive layer is made of a mixed material comprising electrically conductive material, cellulose triacetate, and heat curing material.

### Claim 6 (depends on 1)

A display panel, comprising the polarizer sheet according to claim 1.

### Claim 7 (depends on 6)

The display panel according to claim 6, further comprising:
a color filter substrate, disposed on the surface of the polarizer sheet that a pressure sensitive adhesive is disposed thereon;
an array substrate disposed on a surface of the color filter substrate opposite to another surface of the color filter substrate facing the polarizer sheet, wherein an electrically conductive pad is disposed on a surface of the array substrate opposite to another surface of the array substrate facing polarizer sheet; and
a silver adhesive layer disposed between a surface of the electrically conductive layer of the polarizer sheet and a surface of the electrically conductive pad of the array substrate.

### Claim 8 (depends on 7)

The display panel according to claim 7, wherein a shape of the polarizer sheet is the same with a shape of the color filter substrate; and
wherein a side of the polarizer sheet is aligned with a side of the color filter substrate.

### Claim 9 (depends on 7)

The display panel according to claim 7, wherein a shape of the array substrate is the same with a shape of the color filter substrate; and
wherein a size of the array substrate is greater than a size of the color filter substrate.

### Claim 10 (depends on 7)

The display panel according to claim 7, wherein a middle of the silver adhesive layer is disposed at a side of the polarizer sheet and a side of the color filter substrate.

### Claim 11 (depends on 6)

A display device, comprising the display panel according to claim 6.