Liquid crystal display device and method of fabricating the same
AssigneeLG Display Co., Ltd.
InventorsChiWan Kim, JungHan Kim, YongBin Jeong
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Abstract
In a liquid crystal display device and a method of fabricating the same in accordance with the present invention, there is provided a liquid crystal display device with a color filter on TFT (COT) structure for a high-image quality and high-performance display, in which a light blocking pattern is formed with a double layer structure of an upper layer having a low-reflectance characteristic and a lower layer having a low-transmittance and high-conductance characteristic to replace a black matrix, thereby solving the image quality and luminance issues.
Claims13
A method of fabricating a liquid crystal display device, the method comprising:
- forming a gate line and a data line crossed with each other on a first substrate to define a pixel area;
- forming a thin-film transistor at a crossed region between the gate line and the data line;
- forming a color filter within the pixel area of the first substrate;
- forming an insulating layer on the color filter and on the thin-film transistor;
- forming a plurality of common electrodes and pixel electrodes within the pixel area of the first substrate filter and on and in contact with the insulating layer;
- forming a light blocking pattern on and in contact with the insulating layer, the light blocking pattern being formed at a boundary of the pixel area,
- wherein the light blocking pattern comprises a first light blocking pattern at an upper portion of the data line to cover the whole data line, and a second light blocking pattern and a third light blocking pattern at an upper portion of the gate line and a common line to cover the gate line and the common line, respectively, and
- wherein the second light blocking pattern is formed in a direction parallel to the third light blocking pattern to be located adjacent to the third light blocking pattern;
- and
- attaching a second substrate to the first substrate,
- wherein the common electrode, the pixel electrode and the light blocking pattern are formed with double layers of an upper layer having a low-reflectance characteristic and a lower layer having a low-transmittance and high-conductance characteristic.
A liquid crystal display device, comprising:
- a gate line and a data line on a first substrate, and crossed with each other to define a pixel area;
- a thin-film transistor at a crossed region between the gate line and the data line;
- a color filter within the pixel area of the first substrate;
- an insulating layer disposed on the color filter and the thin-film transistor;
- a plurality of common electrodes and pixel electrodes within the pixel area of the first substrate and disposed on and in contact with the insulating layer;
- a light blocking pattern at a boundary of the pixel area to cover the boundary of the pixel area and disposed on and in contact with the insulating layer,
- wherein the light blocking pattern comprises a first light blocking pattern at an upper portion of the data line to cover the whole data line, and a second light blocking pattern and a third light blocking pattern at an upper portion of the gate line and a common line to cover the gate line and the common line, respectively, and
- wherein the second light blocking pattern is in a direction parallel to the third light blocking pattern to be located adjacent to the third light blocking pattern;
- and
- a second substrate attached to face the first substrate,
- wherein the common electrode, the pixel electrode and the light blocking pattern have double layers of an upper layer having a low-reflectance characteristic and a lower layer having a low-transmittance and high-conductance characteristic.
Dependencies are inferred from the claim text.