LIQUID CRYSTAL DISPLAY

• US 20100141860A1
• Filed: 05/04/2009
• Published: 06/10/2010
• Est. Priority Date: 12/09/2008
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Kim, Dong-Gyu, Cho, Eun, Park, Kee-Bum, Kwon, Yeong-Keun, KIM, Yoon-Jang
• Granted Patent: US 8,477,253 B2
• Time in Patent Office: Days
• US Class Current: 349/48
• CPC Class Codes: G02F 1/133514 Colour filters
• CPC Class Codes: G02F 1/134363 for applying an electric field parallel to the substrate, i.e. in-plane switching [IPS]
• CPC Class Codes: G02F 1/13606 having means for reducing parasitic capacitance
• CPC Class Codes: G02F 1/136213 Storage capacitors associated with the pixel electrode
• CPC Class Codes: G02F 1/136222 Colour filters incorporated in the active matrix substrate
• CPC Class Codes: G02F 1/13624 having more than one switching element per pixel

Abstract

A liquid crystal display according to an embodiment of the present invention includes: a first substrate; a plurality of color filters formed on the first substrate and arranged in a matrix with an island shape; a plurality of pixel electrodes formed on the color filters; and a capacitor disposed between neighboring color filters in a column direction among the color filters, wherein two terminals forming the capacitor are disposed at a portion outside a position overlapping the color filters.

Claims

1. A liquid crystal display comprising:

a first substrate;

a plurality of color filters formed with an island shape on the first substrate and arranged in a matrix;

a plurality of pixel electrodes formed on the color filters; and

a capacitor disposed between neighboring color filters in a column direction among the color filters,

wherein two terminals forming the capacitor are disposed at a portion outside a position overlapping the color filters.

2. The liquid crystal display of claim 1, wherein each pixel electrode comprises a first subpixel electrode and a second subpixel electrode, with the liquid crystal display further comprising:

a plurality of first thin film transistors connected to the first subpixel electrodes;

a plurality of second thin film transistors connected to the second subpixel electrodes;

a plurality of third thin film transistors connected to the second subpixel electrodes;

a plurality of first gate lines connected to the first and second thin film transistors;

a plurality of data lines connected to the first and second thin film transistors; and

a plurality of second gate lines connected to the third thin film transistors.

3. The liquid crystal display of claim 2, wherein

the first and second gate lines are disposed between the neighboring color filters in the column direction among the color filters.

4. The liquid crystal display of claim 3, wherein the first and second gate lines are disposed outside a portion overlapping the pixel electrodes.

5. The liquid crystal display of claim 3, wherein the capacitor is connected to the second subpixel electrode through the third thin film transistor.

6. The liquid crystal display of claim 5, wherein the third thin film transistor is connected to the second subpixel electrode through a contact hole.

7. The liquid crystal display of claim 6, wherein the contact hole is disposed between the neighboring color filters in the column direction among the color filters.

8. The liquid crystal display of claim 5, wherein one terminal of the capacitor comprises the same material as the first and second gate lines, and the other terminal of the capacitor comprises the same material as the pixel electrode.

9. The liquid crystal display of claim 5, wherein the third thin film transistor is turned on after the first and second thin film transistors are turned on.

10. The liquid crystal display of claim 5, further comprising a light blocking member overlapping a space between the color filters.

11. The liquid crystal display of claim 10, further comprising a second substrate facing the first substrate, wherein the light blocking member is formed on the second substrate.

12. The liquid crystal display of claim 5, wherein the first and second subpixel electrodes comprise a plurality of cutouts, and directions of the edges of the cutouts are different from each other.

13. The liquid crystal display of claim 12, wherein the edges of the cutouts form 45 degree or 135 degree angles with the first and second gate lines.