IP Library Granted Patent US 8,553,190
Granted Patent B2
US 8,553,190 · App. 13/066,863 · Granted Oct 8, 2013

Liquid crystal display device

Inventors: Takakazu Fukuchi (Chiba, JP); Takayoshi Hanami (Chiba, JP)
Assignee: Seiko Instruments Inc.
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Quick Facts
Patent No.
US 8,553,190
App. No.
13/066,863
Granted
Oct 8, 2013
Kind
B2
Abstract

A liquid crystal display device has a wiring electrode and an independent gap electrode without wiring formed on a substrate, and an insulating film formed on the wiring and gap electrodes. A first display electrode, an outer second display electrode, and an inner second display electrode are formed on the insulating film and are electrically connected to the wiring electrode or the gap electrode via respective contact regions provided in the insulating film. The first display electrode overlaps with an edge portion of the gap electrode through intermediation of the insulating film. The outer second display electrode and the inner second display electrode each overlap with another edge portion of the gap electrode through intermediation of the insulating film. By such a construction, the wiring electrode is prevented from being visible or from having portions thereof being half-lit.

Claims (26)

1. A liquid crystal display device, comprising:

a substrate;

an insulating film formed on the substrate;

a first display electrode and a second display electrode formed on the insulating film;

a counter substrate;

a counter electrode formed on the counter substrate so as to be opposed to the first display electrode and the second display electrode;

a liquid crystal layer provided between the counter electrode and both the first display electrode and the second display electrode; and

a gap electrode provided between the substrate and the insulating film at a position corresponding to a clearance between the first display electrode and the second display electrode,

wherein the gap electrode is supplied with the same driving signal as a driving signal supplied to one of the first display electrode and the second display electrode, and

wherein the gap electrode and a display electrode of one of the first display electrode and the second display electrode are electrically connected to each other via a contact region provided in the insulating film.

2. A liquid crystal display device according to claim 1 ; wherein the first display electrode and the second display electrode are stripe-shaped electrodes which are adjacent to each other, and each of the first and second display electrodes forms a pixel at an intersection with the counter electrode, to thereby perform matrix display.

3. A liquid crystal display device, comprising:

a substrate;

an insulating film formed on the substrate;

a first display electrode and a second display electrode formed on the insulating film;

a counter substrate;

a counter electrode formed on the counter substrate so as to be opposed to the first display electrode and the second display electrode;

a liquid crystal layer provided between the counter electrode and both the first display electrode and the second display electrode;

a gap electrode provided between the substrate and the insulating film at a position corresponding to a clearance between the first display electrode and the second display electrode; and

a wiring electrode formed between the substrate and the insulating film and insulated from the gap electrode, wherein

the first display electrode and the gap electrode are electrically connected to each other;

the gap electrode is supplied with the same driving signal as a driving signal supplied to the first display electrode; and

the second display electrode is electrically connected to the wiring electrode.

4. A liquid crystal display device according to claim 3 ; wherein:

the gap electrode is electrically connected to the first display electrode via a contact region provided in the insulating film; and

the wiring electrode is electrically connected to the second display electrode via another contact region provided in the insulating film.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 26, 2021
From: BEIJING METIS TECHNOLOGY SERVICE CENTER (LLP)
To: DAWNCREST IP LLC
Reel/Frame 057917/0154 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 13, 2016
From: SEIKO INSTRUMENTS INC.
To: BEIJING METIS TECHNOLOGY SERVICE CENTER (LLP)
Reel/Frame 038593/0418 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 17, 2011
From: FUKUCHI, TAKAKAZU; HANAMI, TAKAYOSHI
To: SEIKO INSTRUMENTS INC.
Reel/Frame 026534/0985 →
Priority Claims (2)
JP 2010-105969 · Apr 30, 2010 · national
JP 2011-075595 · Mar 30, 2011 · national
Continuity (1)
Related Publication 20110267568A1 · Nov 3, 2011