Color liquid crystal display

• US 6,407,793 B1
• Filed: 05/02/2001
• Issued: 06/18/2002
• Est. Priority Date: 05/02/2001
• Status: Expired due to Term

• Current Assignee: Giantplus Technology Company Limited (TOPPAN Holdings, Inc.)
• Original Assignee: Giantplus Technology Company Limited (TOPPAN Holdings, Inc.)
• Inventors: Tseng, Jung-Hsiang, Ho, Pai-Chang, Chang, Pin, Liang, Wei-Chen
• Primary Examiner(s): Ton, Toan
• Application Number:
  US09/846,246
• Time in Patent Office: 412 Days
• Field of Search: 349/106, 349/149, 349/152, 349/139, 349/151, 349/155
• US Class Current: 349/139
• CPC Class Codes: G02F 1/133514 Colour filters
• CPC Class Codes: G02F 1/1339 Gaskets; Spacers; Sealing of cells
• CPC Class Codes: G02F 1/134336 Matrix
• CPC Class Codes: G02F 1/1345 Conductors connecting electrodes to cell terminals

Abstract

The present invention provides a color LCD, which comprises a first substrate and a second substrate with a liquid crystal layer sandwiched in between and a seal-ring for sealing them. The seal-ring has conductive spacers. Transparent electrode plates cover two opposed surfaces of the two substrates, respectively. The seal-ring having conductive spacers is used to conduct the two transparent electrode plates. A color filter is disposed between the first substrate and the transparent electrode plates. The color filter has a plurality of pixels disposed thereon. Each of the pixels comprises at least two sub pixels, and each of the sub pixels is composed of at least two colors. Conductive walking lines on the transparent electrode plates are used to electrically connect at least two data transmission lines of the same color in each column of longitudinally-arranged pixels to the same pin.

Claims

1. A color liquid crystal display at least comprising:

a first substrate and a second substrate, said two substrates being parallel spaced, each of said two substrates having a surface opposed to each other;

liquid crystal material sandwiched between said two substrates, a seal-ring being used to surround the periphery of said two substrates and to seal said liquid crystal material, said seal-ring having conductive spacers;

two transparent electrode plates respectively covering said opposed surfaces of said two substrates, said seal-ring having said conductive spacers being used to conduct said two transparent electrode plates; and

a color filter disposed between said first substrate and said transparent electrode plates, said color filter having a plurality of tidily arranged pixels, each said pixel comprising at least two sub pixels, each said sub pixel being composed of at least two colors, a set of signal scan lines on said transparent electrode plates being electrically connected to transversely-arranged sub pixels, another set of data transmission lines being electrically connected to longitudinally-arranged colors, conductive walking lines on said transparent electrode plates being used to electrically connect at least two data transmission lines of the same color in each column of longitudinally-arranged pixels together so that said at least two data transmission lines can be connected to the same pin.

2. The color liquid crystal display as claimed in claim 1, wherein said first and second substrates are transparent glass substrates.

3. The color liquid crystal display as claimed in claim 1, wherein said sub pixel comprises a primary color and its contrastive color.

4. The color liquid crystal display as claimed in claim 1, wherein said sub pixel comprises the three primary colors of red, green, and blue.

5. The color liquid crystal display as claimed in claim 1, wherein said conductive spacers are Au spacers.

6. The color liquid crystal display as claimed in claim 1, wherein said transparent electrode plates comprise indio tin oxide electrodes.

7. The color liquid crystal display as claimed in claim 1, wherein the outer surfaces of said first and second substrates have polarizers.

8. The color liquid crystal display as claimed in claim 1, wherein said conductive walking lines on said transparent electrode plates form a reverse U-shaped structure.

9. The color liquid crystal display as claimed in claim 1, wherein said color filter is disposed between said first or second substrate and said transparent electrode plates.

10. The color liquid crystal display as claimed in claim 1, wherein said pixels on said color filter can be designed to form a dot-matrix or an irregular pattern.

11. The color liquid crystal display as claimed in claim 1, wherein the arrangement of colors on said color filter can be designed to form a straight-line shape of an alternative rectangular grid shape.