# US 7,612,857 B2 · Liquid crystal display

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- Number: US 7,612,857 B2
- Document ID: US7612857B2
- Status: Granted
- Kind: B2
- Application number: 10/499,301
- Filed: 2002-12-19
- Published: 2005-07-21
- Granted: 2009-11-03
- Earliest claimed: 2001-12-19
- Assignees: Panasonic Corporation
- Inventors: Nami Uyama; Hideya Kawashima
- Web page: https://patentgrep.com/patent/US7612857B2

## CPC

- G02F 1/1341: Filling or closing of cells
- G02F 1/1345: Conductors connecting electrodes to cell terminals
- 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 device is provided which allows an ultraviolet curing sealant to be cured without blockage of ultraviolet rays by wiring formed of a conductive metal film and which ensures stabilized quality of reliability with the occurrence of defective image display inhibited. The liquid crystal display device is manufactured through a process including: bonding a liquid crystal driving substrate provided with wiring formed of a conductive metal film to its counter substrate; injecting a liquid crystal material into a clearance defined between the substrates through a liquid crystal material injecting portion; and then sealing the injecting portion with an ultraviolet curing sealant, the wiring being positioned so as not to overlap the interface between the liquid crystal material and the ultraviolet curing sealant in plan view.

## Claims

### Claim 1

A liquid crystal display device comprising:
a pair of substrates disposed with respective principal planes thereof facing each other to define a clearance therebetween, at least one of the substrates being provided with wiring on an internal surface thereof;
a liquid crystal material layer comprising a liquid crystal material filling the clearance between the pair of substrates;
an adhesive layer enclosing the liquid crystal material layer except a gap as a liquid crystal material injecting portion in the clearance; and
a light curing sealant sealing the liquid crystal material injecting portion,
wherein in a plan view of the pair of substrates, the wiring overlaps with the sealant at the liquid crystal material injecting portion, and has a window that exposes an entire interface between the liquid crystal material layer and the sealant at the liquid crystal material injecting portion.

### Claim 2 (depends on 1)

The liquid crystal display device according to claim 1, wherein the wiring is made of conductive metal material.

### Claim 3 (depends on 1)

The liquid crystal display device according to claim 1, wherein the wiring is rescue wiring.

### Claim 4 (depends on 1)

The liquid crystal display device according to claim 1, wherein said at least one of the substrates includes switching devices.

### Claim 5 (depends on 1)

The liquid crystal display device according to claim 1, wherein the wiring is made of light blocking material.

### Claim 6 (depends on 1)

The liquid crystal display device according to claim 1, wherein the wiring is rescue wiring made of light blocking material.

### Claim 7 (depends on 1)

The liquid crystal display device according to claim 1, wherein the wiring is rescue wiring made of light blocking material, and said at least one of the substrates includes switching devices and a network of wiring.