LIQUID CRYSTAL PANEL

• US 20100020255A1
• Filed: 07/21/2009
• Published: 01/28/2010
• Est. Priority Date: 07/24/2008
• Status: Active Grant

• Current Assignee: Wintek Corporation
• Original Assignee: Wintek Corporation
• Inventors: Wang, Hung-Jen, Chen, Yu-Ting, Chan, Hsiu-Lin
• Granted Patent: US 8,629,947 B2
• Time in Patent Office: Days
• US Class Current: 349/38
• CPC Class Codes: G02F 1/13439 characterised by their electrical, optical, physical properties; materials therefor; method of making
• 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 2203/01 transmissive

Abstract

A liquid crystal panel including a bottom substrate, a top substrate and a liquid crystal layer is provided. The bottom substrate includes a base plate, an active array structure layer, a color filter layer with plural colors and plural transparent pixel electrodes. The active array structure layer includes plural transparent bottom electrodes and plural transistor structures, at least one insulation layer, plural scan lines and plural data lines both formed on the base plate. At least one insulation layer covers the transparent bottom electrodes. The color filter layer is formed on the active array structure layer. The transparent pixel electrodes are formed on the color filter layer. Each transparent pixel electrode partially overlaps the corresponding transparent bottom electrodes so as to form plural storage capacitor structures. The top substrate is substantially parallel to the bottom substrate. The liquid crystal layer is located between the top substrate and the bottom substrate.

Claims

1. A liquid crystal panel, comprising:

a top substrate;

a liquid crystal layer; and

a bottom substrate substantially disposed in parallel with the top substrate, wherein the liquid crystal layer is located between the top substrate and the bottom substrate, and the bottom substrate comprises;

a base plate;

an active array structure layer comprising a plurality of transparent bottom electrodes formed on the base plate, a plurality of transistor structures, at least one insulation layer, a plurality of scan lines and a plurality of data lines both formed on the base plate, wherein the at least one insulation layer covers the transparent bottom electrodes;

a color filter layer with a plurality of colors formed on the active array structure layer; and

a plurality of transparent pixel electrodes formed on the color filter layer with a plurality of colors, wherein each of the transparent pixel electrodes partially overlaps the corresponding transparent bottom electrodes so as to form a plurality of storage capacitor structures.

2. The liquid crystal panel according to claim 1, wherein the data lines partly overlap the transparent bottom electrodes and the transparent pixel electrodes.

3. The liquid crystal panel according to claim 2, wherein a first opening is located between two adjacent transparent pixel electrodes and above the corresponding data line and extended along the corresponding data line.

4. The liquid crystal panel according to claim 3, wherein each of the data lines partially overlaps the two corresponding adjacent transparent pixel electrodes.

5. The liquid crystal panel according to claim 3, wherein a second opening is located between two adjacent transparent bottom electrodes and under the corresponding data line and extended along the corresponding data line.

6. The liquid crystal panel according to claim 5, wherein the data line disposed above the second opening partially overlaps the two corresponding adjacent transparent bottom electrodes.

7. The liquid crystal panel according to claim 1, wherein the color of the color filter layer disposed under the transparent pixel electrodes differs with the color of the color filter layer disposed under the other adjacent transparent pixel electrode, and a boundary between two adjacent color filter layers with different colors is located above the corresponding data line.

8. The liquid crystal panel according to claim 1, wherein the data lines and the scan lines define a plurality of pixels each comprising the transistor structure, the transparent bottom electrode, at least one insulation layer, the color filter layer with one color, and the transparent pixel electrode.

9. The liquid crystal panel according to claim 8, wherein the scan lines respectively are electrically connected to gates of the transistor structures, the data lines respectively are electrically connected to sources of the transistor structures, the scan lines are insulated from the data lines by at least one insulation layer, and the transparent pixel electrodes respectively are electrically connected to drains of the transistor structures.

10. The liquid crystal panel according to claim 9, wherein the transparent bottom electrode of each pixel is electrically connected to the gate of the transistor structure of another pixel.

11. The liquid crystal panel according to claim 9, wherein the transparent bottom electrodes respectively are electrically connected to a common electrode voltage.