Reflective type color liquid crystal device and an electronic apparatus using this

• US 7,995,163 B2
• Filed: 10/25/2010
• Issued: 08/09/2011
• Est. Priority Date: 07/17/1995
• Status: Expired due to Fees

• Current Assignee: Seiko Epson Corporation (Seiko Group)
• Original Assignee: Seiko Epson Corporation (Seiko Group)
• Inventors: Maeda, Tsuyoshi, Matsushima, Toshiharu, Okumura, Osamu, Okamoto, Eiji
• Primary Examiner(s): PAK, SUNG H
• Application Number:
  US12/911,370
• Publication Number:
  US 20110032458A1
• Time in Patent Office: 288 Days
• Field of Search: None
• US Class Current: 349/106
• CPC Class Codes: G02B 5/201 in the form of arrays
• CPC Class Codes: G02B 5/22 Absorbing filters G02B5/201 - G02B5/208 take precedence
• CPC Class Codes: G02F 1/133514 Colour filters
• CPC Class Codes: G02F 1/133553 Reflecting elements associated to illuminating devices G02F1/133605
• CPC Class Codes: G02F 1/133555 Transflectors
• CPC Class Codes: G02F 2201/52 RGB geometrical arrangements
• CPC Class Codes: G02F 2203/02 reflective
• CPC Class Codes: G02F 2203/66 Normally white display, i.e. the off state being white

Abstract

A liquid crystal device includes a pair of substrates and a liquid crystal layer between the pair of substrates. In addition, the device includes a plurality of dots capable of independently applying voltage to the liquid crystal layer, each dot having a dot area that includes a first section and a second section. A color filter is arranged in the first section of at least one of the dots. A substantially transparent area is arranged in the at least one of the dots in the second section where the color filter is not arranged.

Claims

1. A liquid crystal display comprising:

a first electrode;

a second electrode opposing the first electrode;

a liquid crystal layer arranged between the first electrode and the second electrode;

a plurality of dot areas formed at overlapping portions of the first electrode and the second electrode;

a light-blocking film arranged between one dot area of the plurality of dot areas and an other dot area of the plurality of dot areas that is adjacent to the one dot area;

a color filter arranged in a part of the dot areas; and

a non-colored area arranged where the color filter is not arranged, the non-colored area provided between the color filter in the dot area and the light-blocking film.

2. The liquid crystal display according to claim 1, further comprising a reflector arranged in an area overlapping the dot area in plan view.

3. The liquid crystal display according to claim 1, further comprising a substantially transparent layer located in the non-colored area.

4. A liquid crystal display comprising:

a first electrode;

a second electrode opposing the first electrode;

a liquid crystal layer arranged between the first electrode and the second electrode;

a plurality of dot areas formed at overlapping portions of the first electrode and the second electrode, the plurality of dot areas each including a first section and a second section, each of the dot areas having a rectangular shape; and

a color filter provided in the first section in plan view and not provided in the second section in plan view;

wherein the second section is formed as a notch in the color filter from a side of each dot area toward an inside of the dot area.

5. The liquid crystal display according to claim 4, further comprising a reflector arranged in an area overlapping the dot areas in plan view.

6. The liquid crystal display according to claim 4, further comprising a substantially transparent layer located in the second section.