Liquid crystal display device and liquid crystal display

Patent metadata

Field	Value
Publication number	US-9664947-B2
Application number	US-201213608048-A
Country	US
Kind code	B2
Filing date	Sep 10, 2012
Priority date	Sep 22, 2011
Publication date	May 30, 2017
Grant date	May 30, 2017

Abstract

A liquid crystal display device includes: a transparent electrode substrate including a transparent substrate and a transparent electrode, the transparent electrode being formed on one surface of the transparent substrate; a liquid crystal layer; and a pixel electrode substrate including a first layer and a second layer in this order, the first layer including a plurality of pixel electrodes that are located in a region opposed to the transparent electrode with the liquid crystal layer in between, and a first conductive film that is located in a region other than the region opposed to the transparent electrode with the liquid crystal layer in between, the second layer including a second conducive film that is located in a region overlapping the first conductive film. The first conductive film or the second conducive film or both are electrically isolated.

First claim

What is claimed is:

1. A liquid crystal display device comprising:
a transparent electrode substrate including a transparent substrate and a transparent electrode, the transparent electrode being formed on one surface of the transparent substrate;
a liquid crystal layer; and
a pixel electrode substrate including a first layer and a second layer in this order, the first layer including a plurality of pixel electrodes that are located in a region opposed to the transparent electrode with the liquid crystal layer in between, and a first conductive film that is located entirely in a region outside the region opposed to the transparent electrode with the liquid crystal layer in between, the second layer including a second conductive film that is located in a region overlapping the first conductive film, wherein the first layer includes a first light shielding film, the first light shielding film being formed between the first conductive film and the pixel electrodes and being electrically insulated from the first conductive film and from the pixel electrodes, wherein the pixel electrode substrate is joined with the transparent electrode substrate by a sealing member, the sealing member being in direct physical contact with the first light shielding film, wherein the first conductive film or the second conductive film or both are in a floating state electrically isolated from their surroundings, and wherein the first conductive film is separated into a plurality of sections along a length of lead lines formed in the second conductive film.

2. The liquid crystal display device according to claim 1 , wherein the pixel electrode substrate includes a circuit formation layer being located on an opposite side of the second layer from the transparent electrode substrate, the circuit formation layer including a plurality of drive devices that are connected to the pixel electrodes.

3. The liquid crystal display device according to claim 2 , wherein the circuit formation layer includes a plurality of circuit blocks, the plurality of circuit blocks each including a transistor as the drive device.

4. The liquid crystal display device according to claim 3 , wherein the first conductive film or the second conductive film or both have light shielding characteristics.

5. The liquid crystal display device according to claim 4 , wherein the first conductive film is divided into the plurality of sections in a position different from a boundary position between the circuit blocks.

6. The liquid crystal display device according to claim 1 , wherein the pixel electrodes are each made of a conductive material, the conductive material reflecting light that has passed the transparent electrode substrate.

7. The liquid crystal display device according to claim 1 , wherein the first conductive film surrounds the plurality of pixel electrodes.

8. The liquid crystal display device according to claim 1 , wherein the pixel electrodes, the first light shielding film, and the first conductive film are made of a same material, and are insulated from each other.

9. The liquid crystal display device according to claim 1 , wherein the first light shielding film has a same electric potential as an electric potential of the transparent electrode.

10. The liquid crystal display device according to claim 1 , wherein the second layer includes a second light shielding film, the second light shielding film being formed in a region overlapping the plurality of pixel electrodes.

11. A liquid crystal display comprising:
a light source;
a liquid crystal display device; and
a projection section projecting light onto a screen, the light being emitted from the light source and being modulated by the liquid crystal display device, wherein
the liquid crystal display device includes
a transparent electrode substrate including a transparent substrate and a transparent electrode, the transparent electrode being formed on one surface of the transparent substrate,
a liquid crystal layer, and
a pixel electrode substrate including a first layer and a second layer in this order, the first layer including a plurality of pixel electrodes that are located in a region opposed to the transparent electrode with the liquid crystal layer in between, and a first conductive film that is located entirely in a region outside the region opposed to the transparent electrode with the liquid crystal layer in between, the second layer including a second conductive film that is located in a region overlapping the first conductive film, wherein the first layer includes a first light shielding film, the first light shielding film being formed between the first conductive film and the pixel electrodes and being electrically insulated from the first conductive film and from the pixel electrodes, wherein the pixel electrode substrate is joined with the transparent electrode substrate by a sealing member, the sealing member being in direct physical contact with the first light shielding film, wherein the first conductive film or the second conductive film or both are in a floating state electrically isolated from their surroundings, and wherein the first conductive film is separated into a plurality of sections along a length of lead lines formed in the second conductive film.

Assignees

• Kawaura Hideaki
• Sony Corp

Inventors

• Kawaura Hideaki

Classifications

• G02F1/133553 Primary

  Reflecting elements (associated to illuminating devices G02F1/133605) · CPC title

• G02F1/1345

  Conductors connecting electrodes to cell terminals · CPC title

• G02F2001/133388

  Physics · mapped topic

• G02F1/136209

  Light shielding layers, e.g. black matrix, incorporated in the active matrix substrate, e.g. structurally associated with the switching element · CPC title

• G02F1/13439

  characterised by their electrical, optical, physical properties; materials therefor; method of making · CPC title