# US 11,994,776 B2 · Liquid crystal panel and display device

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- Number: US 11,994,776 B2
- Document ID: US11994776B2
- Status: Granted
- Kind: B2
- Application number: 18/329,642
- Filed: 2023-06-06
- Published: 2023-12-07
- Granted: 2024-05-28
- Earliest claimed: 2022-06-07
- Assignees: Japan Display Inc.
- Applicants: Japan Display Inc.
- Inventors: Toshiharu Matsushima; Shunichi Kimura
- Web page: https://patentgrep.com/patent/US11994776B2

## CPC

- G02F 1/13439: {characterised by their electrical, optical, physical properties; materials therefor; method of making}
- G02F 1/133345: {Insulating layers (G02F1/1335, G02F1/1337, G02F1/135, G02F1/136 take precedence)}
- G02F 1/1323: {Arrangements for providing a switchable viewing angle}
- 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

## Abstract

According to an aspect, a liquid crystal panel includes: a first substrate that is a light-transmitting substrate; a second substrate that is disposed facing the first substrate with a liquid crystal interposed between the first substrate and the second substrate and is a light-transmitting substrate; a wiring layer provided on the first substrate on a side facing the liquid crystal and comprising a plurality of wiring lines arrayed in a predetermined direction; an insulating layer stacked on the wiring layer on a side facing the liquid crystal; a first electrode layer stacked on the insulating layer on a side facing the liquid crystal; and a second electrode layer provided on the second substrate on a side facing the liquid crystal. A sheet resistance of the first electrode layer is higher than a sheet resistance of the wiring layer and a sheet resistance of the second electrode layer.

## Claims

### Claim 1

A liquid crystal panel comprising:
a first substrate that is a light-transmitting substrate;
a second substrate that is disposed facing the first substrate with a liquid crystal interposed between the first substrate and the second substrate and is a light-transmitting substrate;
a wiring layer provided on the first substrate on a side facing the liquid crystal and comprising a plurality of wiring lines arrayed in a predetermined direction;
an insulating layer stacked on the wiring layer on a side facing the liquid crystal;
a first electrode layer stacked on the insulating layer on a side facing the liquid crystal; and
a second electrode layer provided on the second substrate on a side facing the liquid crystal, wherein
a sheet resistance of the first electrode layer is higher than a sheet resistance of the wiring layer and a sheet resistance of the second electrode layer, and
the wiring layer and the first electrode layer are not electrically connected.

### Claim 2 (depends on 1)

The liquid crystal panel according to claim 1, wherein
the wiring layer and the first electrode layer are separated by the insulating layer, and
each of the wiring layer, the first electrode layer, and the second electrode layer is a light-transmitting layer.

### Claim 3 (depends on 1)

The liquid crystal panel according to claim 1, wherein a polyimide layer is stacked on each of the first electrode layer on a side facing the liquid crystal and the second electrode layer on a side facing the liquid crystal.

### Claim 4 (depends on 1)

The liquid crystal panel according to claim 1, further comprising a drive circuit capable of individually applying voltages to the wiring lines.

### Claim 5 (depends on 1)

A display device comprising:
a display panel configured to display an image: and
the liquid crystal panel according to claim 1 stacked on a display surface of the display panel.