# US 9,519,193 B2 · Liquid crystal display

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 9,519,193 B2
- Document ID: US9519193B2
- Status: Granted
- Kind: B2
- Application number: 14/721,797
- Filed: 2015-05-26
- Published: 2016-01-14
- Granted: 2016-12-13
- Earliest claimed: 2014-06-20
- Assignees: Samsung Display Co., Ltd.
- Applicants: Samsung Display Co., Ltd.
- Inventors: Seung Jae Lee
- Web page: https://patentgrep.com/patent/US9519193B2

## CPC

- G02F 1/134309: {characterised by their geometrical arrangement}
- G02F 1/134372: {for fringe field switching [FFS] where the common electrode is not patterned}
- 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 liquid crystal display including a first substrate and a second substrate facing the first substrate, a gate line and a data line on the first substrate, a thin film transistor coupled to the gate line and the data line, a pixel electrode coupled to the thin film transistor, and a common electrode overlapping the pixel electrode with an insulating layer therebetween, and including a plurality of branch electrodes and a connector coupling the branch electrodes, the common electrode overlapping the data line and extending in parallel with the data line, wherein a width of the connector of the common electrode is about 8.0 μm to about 13.5 μm.

## Claims

### Claim 1

A liquid crystal display comprising:
a first substrate and a second substrate facing the first substrate;
a gate line and a data line on the first substrate;
a thin film transistor coupled to the gate line and the data line;
a pixel electrode coupled to the thin film transistor; and
a common electrode overlapping the pixel electrode with an insulating layer therebetween, and comprising a plurality of branch electrodes and a connector coupling the branch electrodes, the common electrode overlapping the data line and extending in parallel with the data line, the plurality of branch electrodes extending along a same direction that is different from an extension direction of the connector and being between the gate line and an adjacent gate line,
wherein a width of the connector of the common electrode is about 8.0 μm to about 13.5 μm.

### Claim 2 (depends on 1)

The liquid crystal display of claim 1, wherein
a first distance is between a first edge of the date line and a second edge of the connector nearest the first edge, the first distance being less than a second distance between the first edge and a third edge of the pixel electrode nearest the first edge.

### Claim 3

A liquid crystal display comprising:
a first substrate and a second substrate facing the first substrate;
a gate line and a data line on the first substrate;
a thin film transistor coupled to the gate line and the data line;
a pixel electrode coupled to the thin film transistor; and
a common electrode overlapping the pixel electrode with an insulating layer therebetween, and comprising a plurality of branch electrodes and a connector coupling the branch electrodes, the common electrode overlapping the data line and extending in parallel with the data line,
wherein a width of the connector of the common electrode is about 8.0 μm to about 13.5 μm,
wherein a first distance is between a first edge of the date line and a second edge of the connector nearest the first edge, the first distance being less than a second distance between the first edge and a third edge of the pixel electrode nearest the first edge,
wherein the third edge does not overlap the connector, and
wherein a third distance between the second edge and the third edge is less than about 3.0 μm.

### Claim 4 (depends on 3)

The liquid crystal display of claim 3, wherein
the pixel electrode has a planar shape, and the pixel electrode overlaps the branch electrodes.

### Claim 5 (depends on 4)

The liquid crystal display of claim 4, wherein
at least one of the branch electrodes extends in a direction substantially parallel with the gate line.

### Claim 6 (depends on 1)

The liquid crystal display of claim 1, wherein
a first distance is between a first edge of the data line and a second edge of the connector nearest the first edge, the first distance is greater than a second distance between the first edge and a third edge of the pixel electrode nearest the first edge.

### Claim 7

A liquid crystal display comprising:
a first substrate and a second substrate facing the first substrate;
a gate line and a data line on the first substrate;
a thin film transistor coupled to the gate line and the data line;
a pixel electrode coupled to the thin film transistor; and
a common electrode overlapping the pixel electrode with an insulating layer therebetween, and comprising a plurality of branch electrodes and a connector coupling the branch electrodes, the common electrode overlapping the data line and extending in parallel with the data line,
wherein a width of the connector of the common electrode is about 8.0 μm to about 13.5 μm,
wherein a first distance is between a first edge of the data line and a second edge of the connector nearest the first edge, the first distance is greater than a second distance between the first edge and a third edge of the pixel electrode nearest the first edge,
wherein the third edge of the pixel electrode overlaps the connector, and
wherein a third distance between the second edge and the third edge is less than about 1.25 μm.

### Claim 8 (depends on 7)

The liquid crystal display of claim 7, wherein
the pixel electrode has a planar shape, and the pixel electrode overlaps the branch electrodes.

### Claim 9 (depends on 8)

The liquid crystal display of claim 8, wherein
at least one of the branch electrodes extends in a direction substantially parallel with the gate line.

### Claim 10 (depends on 1)

The liquid crystal display of claim 1, wherein
the pixel electrode has a planar shape, and the pixel electrode overlaps the branch electrodes.

### Claim 11 (depends on 1)

The liquid crystal display of claim 1, wherein
at least one of the branch electrodes extends in a direction substantially parallel with the gate line.