ELECTRO-OPTICAL DEVICE, METHOD FOR MANUFACTURING ELECTRO-OPTICAL DEVICE, AND ELECTRONIC APPARATUS

• US 20070279557A1
• Filed: 05/09/2007
• Published: 12/06/2007
• Est. Priority Date: 05/30/2006
• Status: Active Grant

• Current Assignee: Japan Display West Incorporated (Japan Display Incorporated)
• Original Assignee: Epson Imaging Devices Corporation (Seiko Group)
• Inventors: Wachi, Reiko
• Granted Patent: US 7,932,973 B2
• Time in Patent Office: Days
• US Class Current: 349/109
• CPC Class Codes: G02F 1/133514 Colour filters
• CPC Class Codes: G02F 1/133516 Methods for their manufacture, e.g. printing, electro-deposition or photolithography
• CPC Class Codes: G02F 2201/52 RGB geometrical arrangements
• CPC Class Codes: H10K 59/38 comprising colour filters or colour changing media [CCM]

Abstract

An electro-optical device includes a plurality of subpixel regions forming a display field and a color filter including a plurality of color layers of which at least one is of an additive primary color. The color layers have different color hues and at least two of the color layers are arranged in at least one of the subpixel regions so as not to overlap with each other in plan view. A method for manufacturing the electro-optical device includes forming the color layers such that at least two of the color layers are arranged in at least one of the subpixel regions so as not to overlap with each other in plan view. An electronic apparatus includes the electro-optical device.

Claims

1. An electro-optical device comprising:

a plurality of subpixel regions forming a display field; and

a color filter including a plurality of color layers of which at least one is of an additive primary color,

wherein the color layers have different color hues and at least two of the color layers are arranged in at least one of the subpixel regions so as not to overlap with each other in plan view.

2. The electro-optical device according to claim 1, wherein at least one of the subpixel regions has a reflective section and a transmissive section and at least two of the color layers are arranged in the reflective section.

3. The electro-optical device according to claim 1, wherein two or more of the color layers are uniformly distributed in at least one of the subpixel regions.

4. The electro-optical device according to claim 1, wherein at least one of the subpixel regions that includes at least two of the color layers and the subpixel regions each including one of the color layers form each pixel.

5. The electro-optical device according to claim 1, wherein at least one of the subpixel regions has a reflective section and a transmissive section and the total thickness of each color layer in the reflective section is less than the total thickness of the color layer in the transmissive section.

6. The electro-optical device according to claim 1, wherein at least one of the subpixel regions has an uncolored zone.

8. An electronic apparatus including the electro-optical device according to any one of claims 1 to 6.

7. A method for manufacturing an electro-optical device including a plurality of subpixel regions forming a display field and a color filter including a plurality of color layers of which at least one is of an additive primary color and which have different color hues, the method comprising:

forming the color layers such that at least two of the color layers are arranged in at least one of the subpixel regions so as not to overlap with each other in plan view.