Array substrate for LCD device
View Patent ↗An array substrate for a liquid crystal display (LCD) device. An exemplary embodiment of an array substrate comprises a transparent substrate. A plurality of first and second conductive lines overlies the transparent substrate and cross over each other, thereby defining a plurality of display regions. At least one first spacer overlies a portion of the first or second conductive lines, wherein the first spacer is not formed over an intersection of the first and second conductive lines. A pixel electrode layer overlies the display regions, wherein the first spacer partially covers the pixel electrode layer.
1. An array substrate, comprising:
a transparent substrate;
a plurality of first and second conductive lines overlying the transparent substrate, crossing over each other, defining a plurality of display regions;
a pixel electrode layer overlying the transparent substrate within each of the display regions; and
at least one first spacer overlying a portion of the first or second conductive lines, wherein the first spacer is not formed over an intersection portion of the first and second conductive lines, and the first spacer crosses over two of the display regions adjacent thereto and physically contacts with a part of the pixel electrode in the two of the display regions adjacent to the first spacer.
2. The array substrate as claimed in claim 1 , further comprising at least one second spacer overlying a portion of the first or second conductive lines not formed with the first spacer thereon.
3. The array substrate as claimed in claim 2 , wherein the second spacer partially covers the pixel electrode layer.
4. The array substrate as claimed in claim 1 , wherein the first spacer comprises resin, polymer or silicon compound.
5. The array substrate as claimed in claim 2 , wherein the second spacer comprises resin, polymer or silicon compound.
6. A liquid crystal display (LCD) device, comprising:
an array substrate, comprising:
a first transparent substrate;
a plurality of first and second conductive lines overlying the first transparent substrate, crossing over each other, defining a plurality of display regions;
a pixel electrode layer overlying the first transparent substrate within each of the display regions; and
at least one first spacer overlying a portion of the first or second conductive lines, wherein the at least one first spacer is not formed over an intersection of the first and second conductive lines, and the first spacer crosses over two of the display regions adjacent thereto and physically contacts with a part of the pixel electrode in the two of the display regions adjacent to the first spacer;
a color filter substrate, comprising:
a second transparent substrate;
a black matrix layer overlying the second transparent substrate, defining a plurality of light-transmitting regions; and
a color filter layer overlying the second transparent substrate within the light-transmitting regions, partially covering the black matrix layer to thereby form a recess portion between two adjacent light-transmitting regions, and the black matrix layer exposed by the recess portion physically contacts with the first spacer;
and;
a liquid crystal layer filled between the array substrate and the color filter layer, wherein the first spacer supports the recess portion to thereby align the display regions to the light-transmitting regions.
7. The LCD device as claimed in claim 6 , further comprising at least one second spacer over a portion of the first or second conductive lines not formed with the first spacer formed thereon, the second spacer supports the recess portion to thereby align the display regions to the light-transmitting regions.
8. The LCD device as claimed in claim 7 , wherein the second spacer partially covers the pixel electrode layer.
9. The LCD device as claimed in claim 6 , wherein the first spacer is inserted in the recess portion and movement of the array substrate is thereby limited by the color filter layers adjacent to the recess portion.
10. The LCD device as claimed in claim 7 , wherein the second spacer is inserted in the recess portion and movement of the array substrate is thereby limited by the color filter layers adjacent to the recess portion.
11. The LCD device as claimed in claim 7 , wherein the recess portion extends along the first and second conductive lines and the first and second spacers are both inserted in the recess portion, thereby limiting movement of the array substrate.
12. The LCD device as claimed in claim 6 , wherein the recess portion has a depth of about 0.5-2.5 μm to a top surface of the adjacent color filter layers.
13. The LCD device as claimed in claim 7 , wherein a gap less than 7 μm is formed between a upper portion of the first/second spacers and the color layer adjacent to the recess portion.
14. The LCD device as claimed in claim 6 , wherein the first spacer comprises resin, polymer or silicon compound.
15. The LCD device as claimed in claim 7 , wherein the second spacer comprises resin, polymer or silicon compound.
16. The array substrate as claimed in claim 1 , further comprising an insulating layer formed over the transparent substrate to cover the first and second conductive lines, wherein the first spacer is isolated from the first and second conductive line by the insulating layer.
17. The array substrate as claimed in claim 1 , wherein the first spacer is formed of a tapered shape.
18. The array substrate as claimed in claim 6 , further comprising an insulating layer formed over the first transparent substrate to cover the first and second conductive lines, wherein the first spacer is isolated from the first and second conductive line by the insulating layer.
19. The array substrate as claimed in claim 6 , wherein the first spacer is formed of a tapered shape.