# US 8,786,818 B2 · Liquid crystal display panel having particular laminated spacer

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- Number: US 8,786,818 B2
- Document ID: US8786818B2
- Status: Granted
- Kind: B2
- Application number: 13/580,818
- Filed: 2011-01-06
- Published: 2013-01-17
- Granted: 2014-07-22
- Earliest claimed: 2010-02-24
- Assignees: Sharp Kabushiki Kaisha
- Applicants: Yusuke Waratani; Takaya Uno; Yoshitaka Okumoto
- Inventors: Yusuke Waratani; Takaya Uno; Yoshitaka Okumoto
- Web page: https://patentgrep.com/patent/US8786818B2

## CPC

- G02F 1/13394: {spacers regularly patterned on the cell subtrate, e.g. walls, pillars (G02F1/133377 takes precedence)}
- G02F 1/13398: {Spacer materials; Spacer properties}
- 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

Disclosed is a liquid crystal display panel that can minimize the occurrence of short circuits (leaks) between the pair of substrates even if a certain amount of pressing force is applied to the substrates. A liquid crystal display panel of the present invention is provided with a pair of substrates and a liquid crystal layer sandwiched between the pair of substrates, such that one of the pair of substrates is provided with a support substrate, a laminated spacer formed by laminating three or more resin layers including transparent colored layers, and an electrode that covers the laminated spacer; the other of the pair of substrates is provided with a support substrate and electrodes; and the degree of deformation of the topmost resin layer of the three or more resin layers is at most 5% of the degree of deformation of the entire laminated spacer, when a certain amount of pressing force is applied to the support substrate supporting the laminated spacer.

## Claims

### Claim 1

A liquid crystal display panel including a pair of substrates and a liquid crystal layer sandwiched between the pair of substrates,
wherein one of the pair of substrates comprises a support substrate, a laminated spacer formed by laminating three or more resin layers including a transparent colored layer, and an electrode that covers the laminated spacer;
wherein the other of the pair of substrates comprises a support substrate and electrodes; and
wherein a degree of deformation of a topmost resin layer of the three or more resin layers is at most 5% of a degree of deformation of the laminated spacer as a whole, when a certain amount of pressing force is applied to the support substrate supporting the laminated spacer.

### Claim 2 (depends on 1)

The liquid crystal display panel according to claim 1, wherein a degree of deformation of a second resin layer from the top of the three or more resin layers is at most 15% of the degree of deformation of the laminated spacer as a whole, when a certain amount of pressing force is applied to the support substrate supporting the laminated spacer.

### Claim 3 (depends on 1)

The liquid crystal display panel according to claim 1, wherein the topmost resin layer of the three or more resin layers is located within an inter-electrode region in the other of the pair of substrates, when viewing a surface of the support substrate supporting the laminated spacer from the normal direction.

### Claim 4 (depends on 1)

The liquid crystal display panel according to claim 1, wherein a second resin layer from the top of the three or more resin layers is located within an inter-electrode region in the other of the pair of substrates, when viewing the surface of the support substrate supporting the laminated spacer from the normal direction.

### Claim 5 (depends on 1)

The liquid crystal display panel according to claim 1, wherein a proportion of deformation of upper resin layer of the three or more resin layers is smaller than a proportion of deformation of lower resin layers of the three or more resin layers.

### Claim 6

A liquid crystal display panel including a pair of substrates and a liquid crystal layer sandwiched between the pair of substrates,
wherein one of the pair of substrates comprises a support substrate, a laminated spacer formed by laminating three or more resin layers including a transparent colored layer, and an electrode that covers the laminated spacer;
wherein the other of the pair of substrates comprises a support substrate and electrodes; and
wherein a degree of deformation of a second resin layer from the top of the three or more resin layers is at most 15% of the degree of deformation of the laminated spacer as a whole, when a certain amount of pressing force is applied to the support substrate supporting the laminated spacer.

### Claim 7 (depends on 6)

The liquid crystal display panel according to claim 6, wherein a degree of deformation of a topmost resin layer of the three or more resin layers is at most 5% of the degree of deformation of the laminated spacer as whole, when a certain amount of pressing force is applied to the support substrate supporting the laminated spacer.