# US 7,612,856 B2 · Display device

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- Number: US 7,612,856 B2
- Document ID: US7612856B2
- Status: Granted
- Kind: B2
- Application number: 11/390,863
- Filed: 2006-03-28
- Published: 2006-09-28
- Granted: 2009-11-03
- Earliest claimed: 2005-03-28
- Assignees: NEC LCD Technologies, Ltd.; NEC Corporation
- Inventors: Tomohiko Otose; Koji Shigemura
- Web page: https://patentgrep.com/patent/US7612856B2

## CPC

- G02F 1/13454: {Drivers integrated on the active matrix substrate (G02F1/136277 takes precedence)}
- G02F 1/1339: Gaskets; Spacers; Sealing of cells
- G02F 1/13606: {having means for reducing parasitic capacitance}
- 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 pair of substrates disposed opposite each other; a conductive seal for sealing the gap of the outer peripheral part between the pair of substrates; an electric optical element disposed in an area defined by the substrates and the seal; a display area, formed on one substrate, having a plurality of pixels for controlling the electric optical element; and a driver circuit for controlling the pixels. The driver circuit is so configured that a circuit element affected by stray capacitance formed between the conductive seal and the driver circuit is disposed apart from the conductive seal.

## Claims

### Claim 1

A display device comprising:
a pair of substrates disposed opposite each other; a conductive seal for sealing a gap of an outer peripheral part between the pair of substrates;
an electric optical element disposed in an area defined by the substrates and the seal;
a display area, formed on one of the substrates, having a plurality of pixels for controlling the electric optical element; and
a driver circuit for controlling the pixels, wherein
the driver circuit includes a node having a period in which the node is in a floating state and a remaining circuit element, and
wherein a part of the node is disposed at a position apart from the conductive seal.

### Claim 2 (depends on 1)

The display device, as claimed in claim 1, wherein the conductive seal includes a non-conductive seal, and the non-conductive seal covers the the part of the node.

### Claim 3 (depends on 1)

The display device, as claimed in claim 1, wherein the conductive seal includes an inter-substrate gap regulating unit having non-conductivity, and the inter-substrate gap regulating unit is interposed between the pair of substrates.

### Claim 4 (depends on 2)

The display device, as claimed in claim 2, wherein an inter-substrate gap regulating unit having non-conductivity is interposed between the conductive seal and the non-conductive seal, and the inter-substrate gap regulating unit is interposed between the pair of substrates.

### Claim 5 (depends on 1)

The display device, as claimed in claim 1, wherein an edge of a counter electrode provided on the substrate is disposed at a position away from the node.

### Claim 6 (depends on 1)

The display device, as claimed in claim 1, wherein the node of the driver circuit is a circuit element for causing a bootstrap effect, and the node is disposed away from the conductive seal.

### Claim 7 (depends on 1)

The display device, as claimed in claim 1, wherein the node of the driver circuit is a dynamic circuit, and a part of the dynamic circuit is disposed away from the conductive seal.