Method for assembling a panel for an LCD
A method for assembling a liquid crystal display includes providing a thin-film-transistor substrate and a color-filter substrate having an active area and a non-active area, wherein plural spacers are formed in the in the active area of the color-filter substrate. At least two spacing-pads are individually formed in the surrounding non-active area at different locations adjacent to the edge of the active area, and the top of the spacing-pad is as high as the spacer in the active area. The color-filter substrate and the thin-film-transistor substrate are sealed.
1 . A method for assembling a panel of a liquid crystal display device, comprising the following steps:
a) providing a thin-film-transistor substrate and a color-filter substrate, wherein the color filter substrate comprises a non-active area, and an active area having plural spacers formed in the active area of the color-filter substrate, at least two spacing-pads are individually formed in two opposite regions close to an edge of the active area and in a corresponding periphery of the non-active area adjacent to the edge of the active area, and the height of the spacing-pad is as same as those of the spacers in the active area; and
b) sealing the color-filter substrate and the thin-film-transistor substrate.
2 . The method of claim 1 , wherein the materials of the spacers and spacing-pads are photoresist.
3 . The method of claim 1 , wherein the color-filter substrate is formed by a photolithographic process.
4 . The method of claim 3 , wherein the photolithographic process is performed with a mask having a pattern of photo spacers and spacing-pads.
5 . The method of claim 1 , wherein the thickness of the spacers and that of the spacing-pads is different.
6 . The method of claim 1 , wherein the spacing-pads are formed at two sites opposite to each other on the edge of the non-active area.
7 . The method of claim 1 , wherein the shape of the spacing-pads is in a shape of a rectangle, a circle or a U-shape.
8 . The method of claim 1 , further comprising a step (c) after step (b), of depositing a liquid crystal in the panel.
9 . The method of claim 1 , wherein the color-filter substrate further comprises a plurality of pixel units and at least one electrode structure.
10 . The method of claim 1 , wherein the thin-film-transistor substrate comprises a transparent electrode.
11 . A method for preparing a color filter substrate having spacing-pads, the steps comprising:
(a) providing a color-filter substrate having an active area and a non-active area; and
(b) forming plural spacers in the active area, and forming at least two spacing-pads individually in the surrounding non-active area;
wherein the at least two spacing-pads are individually formed in two opposite regions close to an edge of the active area and in a corresponding periphery of the non-active area adjacent to the edge of the active area, and the height of the spacing-pads is as same as those of the spacers in the active area.
12 . The method of claim 11 , wherein the wherein the materials of the spacers and spacing-pads are photoresist.
13 . The method of claim 11 , wherein the spacers and spacing-pads are formed by a photolithographic process.
14 . The method of claim 13 , wherein the photolithographic process is performed in conjunction with a mask having a pattern of photo spacers and spacing-pads.
15 . The method of claim 11 , wherein the thickness of the spacers and that of the spacing-pads is different.
16 . The method of claim 11 , wherein the spacing-pads are formed at two sites opposite to each other on the edge of the non-active area.
17 . The method of claim 11 , wherein the spacing-pads are in a shape of a rectangle, a circle, or U.
18 . A color-filter substrate having spacing-pads, comprising:
an active area having a plurality of photo-spacers; and
a non-active area having at least two spacing-pads; wherein the at least two spacing-pads are individually formed in two opposite regions close to an edge of the active area and in a corresponding periphery of the non-active area adjacent to the edge of the active area, and the height of the spacing-pads is as same as those of the spacers in the active area.
19 . The color-filter substrate of claim 18 , wherein the materials of the spacers and spacing-pads are photoresist.
20 . The color-filter substrate of claim 18 , wherein the thickness of the spacers and that of the spacing-pads is different.
21 . The color filter substrate of claim 18 , wherein the spacing-pad are formed at two sites opposite to each other on an edge of the non-active area.
22 . The color filter substrate of claim 18 , wherein the spacing-pads are in a shape of a rectangle, a circle, or U.