# US 10,768,499 B2 · Display device, operating method of display device, and pixel circuit of display device

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- Number: US 10,768,499 B2
- Document ID: US10768499B2
- Status: Granted
- Kind: B2
- Application number: 16/567,380
- Filed: 2019-09-11
- Published: 2020-01-02
- Granted: 2020-09-08
- Earliest claimed: 2016-03-08
- Assignees: Au Optronics Corporation
- Applicants: AU Optronics Corporation
- Inventors: Fang-Cheng Yu; Tzu-Yi Tsao; Pu-Jung Huang; Cheng-Yeh Tsai
- Web page: https://patentgrep.com/patent/US10768499B2

## CPC

- G02F 1/137: characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
- G02F 1/133621: {providing coloured light (G02F1/133617, G02F1/133533 take precedence)}
- G02F 1/134309: {characterised by their geometrical arrangement}
- G02F 1/134363: {for applying an electric field parallel to the substrate, i.e. in-plane switching [IPS]}
- G02F 1/136286: {Wiring, e.g. gate line, drain line}
- G02F 1/133514: {Colour filters}
- G02F 1/133622: {Colour sequential illumination}
- G02F 2201/121: common or background
- G02F 2203/04: wavelength independent
- 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

A display device includes a first substrate, a second substrate, a first liquid crystal display medium, and a first electric field applying component. The first electric field applying component is configured to apply a first electric field to a first portion of the first liquid crystal display medium and apply a second electric field to a second portion of the first liquid crystal display medium. The intensity of the first electrical field is operatively different from that of the second electrical field.

## Claims

### Claim 1

An operating method of a display device, comprising:
applying a first electric field to a first portion of a first liquid crystal display medium, wherein the first liquid crystal display medium is disposed between a first substrate and a second substrate; and
applying a second electric field to a second portion of the first liquid crystal display medium;
wherein, the first electric field and the second electric field are parallel to the first substrate, and the intensity of the first electric field is operatively different from that of the second electric field;
providing a first-color light toward the first liquid crystal display medium in a first sub-liquid crystal display medium in a first sub-frame, wherein the first electric field and the second electric field have different intensities in the first sub-frame; and
providing a second-color light toward the first liquid crystal display medium in a second sub-frame, wherein the first electric field and the second electric field provided by an electric field applying component have a same intensity in a second sub-frame.

### Claim 2 (depends on 1)

The operating method of claim 1, further comprising:
applying a third electric field to a first portion of a second liquid crystal display medium, wherein the second liquid crystal display medium is disposed between the first substrate and the second substrate; and
applying a fourth electric field to a second portion of the second liquid crystal display medium;
wherein, the third electric field and the fourth electric field are parallel to the first substrate, and an intensity ratio of the first electric field to the second electric field is different from an intensity ratio of the third electric field to the fourth electric field.

### Claim 3 (depends on 2)

The operating method of claim 2, wherein the third electric field and the fourth electric field have a same intensity.

### Claim 4 (depends on 1)

The operating method of claim 1, wherein the first electric field and the second electric field are concurrently and simultaneously generated.

### Claim 5 (depends on 1)

The operating method of claim 1, wherein the first electric field and the second electric field are for a first pixel.