Color display utilizing combinations of four colors

• US 20020191130A1
• Filed: 06/19/2001
• Published: 12/19/2002
• Est. Priority Date: 06/19/2001
• Status: Abandoned Application

• Current Assignee: Giantplus Technology Company Limited (TOPPAN Holdings, Inc.)
• Original Assignee: Giantplus Technology Company Limited (TOPPAN Holdings, Inc.)
• Inventors: Wu, Heng-Chung, Chang, Pin, Liang, Wei-Chen
• Application Number:
  US09/883,291
• Publication Number:
  US 20020191130A1
• Time in Patent Office: Days
• US Class Current: 349/108
• CPC Class Codes: G02F 1/133514 Colour filters
• CPC Class Codes: G02F 2201/52 RGB geometrical arrangements
• CPC Class Codes: G02F 2203/30 Gray scale

Abstract

The present invention proposes a color display utilizing combinations of four colors, wherein full-color images are obtained by controlling gray-scale contrast of a plurality of pixels each having four colors. The four colors are two primary colors and two contrastive colors complementary to them, e.g., the red and its complementary color—cyan and the green and its complementary color—magenta. The present invention can enhance the color fullness and the delicacy of images without increasing the cost and changing the design of structure.

Claims

1. A color display utilizing combinations of four colors, wherein color images are obtained by controlling gray-scale contrast of a plurality of pixels each having four colors, said four colors being two primary colors and two contrastive colors complementary to them.

2. The color display utilizing combinations of four colors as claimed in claim 1, wherein said primary colors are red and green, and said two contrastive colors complementary to them are cyan and magenta.

3. The color display utilizing combinations of four colors as claimed in claim 1, wherein said primary colors are red and blue, and said two contrastive colors complementary to them are cyan and yellow.

4. The color display utilizing combinations of four colors as claimed in claim 1, wherein said primary colors are green and blue, and said two contrastive colors complementary to them are magenta and yellow.

5. The color display utilizing combinations of four colors as claimed in claim 1, wherein each column and each row of said sub-pixels are formed by orderly arrangement of any combination of said four colors.

6. The color display utilizing combinations of four colors as claimed in claim 1, wherein each column and each row of said sub-pixels can be driven and controlled using separate active integrated circuit devices.