Liquid crystal display panel and manufacturing method thereof
View Patent ↗A liquid crystal display panel is disclosed. The liquid crystal display panel includes: a first substrate with a conductive layer formed on one surface thereof; a color filter layer including a plurality of color filters formed on the conductive layer; a conductive light shielding layer formed between the plurality of color filters; a second substrate with a pixel array formed on one surface thereof; and a liquid crystal layer filled between the conductive light shielding layer and the pixel array, wherein the conductive layer is electrically short-circuited with the pixel array. Since a voltage is applied to the conductive layer formed on the front surface of the first substrate, liquid crystal molecules of the liquid crystal layer between the conductive layer and the pixel array can be prevented from being vertically aligned, thus improving liquid crystal efficiency.
1. A liquid crystal display panel comprising:
a first substrate comprising a conductive layer on one surface thereof;
a color filter layer comprising a plurality of color filters on the conductive layer;
a conductive light shielding layer between the plurality of color filters;
a second substrate comprising a pixel array disposed on one surface thereof; and
a liquid crystal layer between the conductive light shielding layer and the pixel array,
wherein the conductive light shielding layer is electrically short-circuited with the pixel array and wherein the conductive layer does not have a pattern.
2. The panel of claim 1 , wherein the pixel array comprises a thin film transistor (TFT), a pixel electrode, and a common electrode.
3. The panel of claim 1 , further comprising:
an overcoat layer disposed on a portion of the color filter layer.
4. The panel of claim 1 , wherein a voltage is applied to the conductive layer, and the difference between the voltage applied to the conductive layer and a voltage applied to the pixel array is less than the threshold voltage of the liquid crystal layer.
5. The panel of claim 1 , wherein the conductive light shielding layer contains chromium (Cr).
6. The panel of claim 1 , wherein voltage application wiring is disposed on the second substrate, in order to apply a voltage to the conductive layer of the first substrate, and the voltage application wiring is electrically short-circuited with wiring of the pixel array.
7. The panel of claim 6 , wherein a conductive connection part is disposed between the first and second substrates and electrically connects the voltage application wiring and the conductive layer.
8. The panel of claim 7 , wherein the conductive connection part comprises a sealing material.
9. A method for forming a liquid crystal display panel, the method comprising:
providing a first substrate with a conductive layer having no pattern formed on a front surface thereof;
forming a conductive light shielding layer on a portion of the conductive layer; and
forming a color filter layer comprising a plurality of color filters on the conductive light shielding layer wherein the conductive light shielding layer between the plurality of color filters;
providing a second substrate with voltage application wiring formed thereon to apply a voltage to the conductive layer of the first substrate wherein providing the second substrate comprises forming a pixel array on the second substrate wherein the pixel array is formed to be electrically short-circuited with the conductive light shielding layer;
attaching the first and second substrates;
electrically connecting the conductive layer of the first substrate and the voltage application wiring of the second substrate;
forming a liquid crystal layer between the conductive light shielding layer and the pixel array; and
applying a voltage to the conductive layer of the first substrate.
10. The method of claim 9 , wherein electrically connecting the conductive layer of the first substrate and the voltage application wiring of the second substrate comprises forming a conductive connection part between the first and second substrates.
11. The method of claim 9 , wherein the difference between a voltage applied to the conductive layer and a voltage applied to the pixel array is less than the threshold voltage of the liquid crystal layer.