Liquid Crystal display device

• US 20010015787A1
• Filed: 02/23/2001
• Published: 08/23/2001
• Est. Priority Date: 02/23/2000
• Status: Active Grant

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Sakuwa, Tohru
• Granted Patent: US 6,639,645 B2
• Time in Patent Office: Days
• US Class Current: 349/158
• CPC Class Codes: G02F 1/133305 Flexible substrates, e.g. plastics, organic film
• CPC Class Codes: G02F 2203/02 reflective

Abstract

An object of the invention is to provide a liquid crystal display device using plastic substrates in which deformation such as warpage and distortion hardly occurs. The reflection type liquid crystal display device includes a light transmitting plastic substrate and a plastic substrate provided with a reflecting layer. The substrates are positioned facing each other to be kept fixed relative to each other with a predetermined space therebetween defined by spacers or the like. A liquid crystal layer is formed in the space between the substrates and sealed with a sealing agent. A polarizing plate along with an adhesive is attached to the outer surface of the light transmitting plastic substrate, and a polycarbonate substrate along with an adhesive is attached to the outer surface of the reflector-attached plastic substrate.

Claims

1. A liquid crystal display device comprising:

a light transmitting first plastic substrate;

a second plastic substrate including a reflecting layer;

a liquid crystal layer interposed between the first and second plastic substrates; and

a polarizing plate formed on an outer surface of the first plastic substrate, the liquid crystal display device further comprising a third plastic substrate formed on an outer surface of the second plastic substrate.

2. The liquid crystal display device of

claim 1

, wherein the third plastic substrate includes an oriented film.

3. The liquid crystal display device of

claim 2

, wherein the third plastic substrate including an oriented film is a polarizing plate including a polarizing film.

4. The liquid crystal display device of

claim 2

, wherein an orientation axis direction of the oriented film is parallel to an orientation axis direction of the polarizing plate formed on the outer surface of the first plastic substrate.

5. The liquid crystal display device of

claim 3

, wherein an orientation axis direction of the oriented film is parallel to an orientation axis direction of the polarizing film of the polarizing plate formed on the outer surface of the first plastic substrate.