IP Library Granted Patent US 7,612,856
Granted Patent B2
US 7,612,856 · App. 11/390,863 · Granted Nov 3, 2009

Display device

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Quick Facts
Patent No.
US 7,612,856
App. No.
11/390,863
Granted
Nov 3, 2009
Kind
B2
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 (13)

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.

2. 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.

3. 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.

4. 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.

5. 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.

6. 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.

7. 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.

Assignments (3)
CHANGE OF NAME Recorded Nov 8, 2011
From: NEC LCD TECHNOLOGIES, LTD.
To: NLT TECHNOLOGIES, LTD.
Reel/Frame 027190/0252 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 7, 2010
From: NEC CORPORATION
To: NEC LCD TECHNOLOGIES, LTD.
Reel/Frame 024495/0216 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 28, 2006
From: OTOSE, TOMOHIKO; SHIGEMURA, KOJI
To: NEC LCD TECHNOLOGIES, LTD.; NEC CORPORATION
Reel/Frame 017738/0864 →