NOISE PREVENTING FILM, LIQUID CRYSTAL DISPLAY DEVICE HAVING THE SAME, AND METHOD FOR MANUFACTURING THE SAME
A noise preventing film includes a base layer, a conductive layer stacked on the base layer, a noise preventing layer stacked on the conductive layer, and a noise preventing particle distributed in the noise preventing layer. An LCD device includes the noise preventing film, and a method for manufacturing the noise preventing film is provided.
1 . A noise preventing film, comprising:
a base layer;
a conductive layer stacked on the base layer;
a noise preventing layer stacked on the conductive layer; and
a noise preventing particle distributed in the noise preventing layer.
2 . The noise preventing film of claim 1 , wherein the noise preventing particle comprises a conductive particle.
3 . The noise preventing film of claim 2 , wherein the conductive particle comprises a nickel particle or a nickel-gold alloy particle.
4 . The noise preventing film of claim 2 , wherein the conductive particle comprises a carbon fiber.
5 . The noise preventing film of claim 1 , wherein the noise preventing particle comprises a bubble filled with low density gas, and the low density gas has lower density than air.
6 . The noise preventing film of claim 5 , wherein the low density gas is helium (He).
7 . The noise preventing film of claim 1 , wherein the noise preventing particle comprises a conductive particle and a bubble filled with low density gas.
8 . A liquid crystal display device, comprising:
a thin film transistor array substrate having a thin film transistor array;
an opposite substrate arranged opposite to the thin film transistor array substrate and having a common electrode;
a liquid crystal layer injected between the thin film transistor array substrate and the opposite substrate;
a common voltage transmitting portion arranged in an edge portion of the thin film transistor array substrate and the opposite substrate and transmitting a common voltage supplied from the thin film transistor array substrate to the opposite substrate;
a polarizer film attached on at least one of the thin film transistor array substrate and the opposite substrate; and
a noise preventing film that prevents noise, is arranged in the polarizer film, and includes a base layer, a conductive layer stacked on the base layer, a noise preventing layer stacked on the conductive layer, and a noise preventing particle distributed in the noise preventing layer.
9 . The LCD device of claim 8 , wherein the polarizer film comprises an extending portion that covers the common voltage transmitting portion to block noise occurring in the common voltage transmitting portion.
10 . The LCD device of claim 8 , wherein the polarizer film comprises a polarizing layer, a retardation film, a first adhesive layer that attaches the polarizing film and the retardation film to each other, and a second adhesive layer adhered to an outer surface of the retardation film.
11 . The LCD device of claim 10 , wherein the noise preventing film is arranged in at least one of the polarizing layer, the retardation film, and the first and second adhesive layers.
12 . The LCD device of claim 8 , wherein the noise preventing particle comprises a conductive particle.
13 . The LCD device of claim 12 , wherein the conductive particle comprises a nickel particle or a nickel-gold alloy particle.
14 . The LCD device of claim 12 , wherein the conductive particle comprises a carbon fiber.
15 . The LCD device of claim 12 , wherein the noise preventing particle comprises a bubble filled with low density gas, and the low density gas has lower density than air.
16 . The LCD device of claim 15 , wherein the low density gas is helium (He).
17 . The LCD device of claim 8 , wherein the noise preventing particle comprises a conductive particle and a bubble filled with low density gas.
18 . A method for manufacturing a noise preventing film, the method comprising:
moving a first film at a predetermined speed;
forming a groove on at least one surface of the first film; and
attaching a second film to a groove-formed surface of the first film in a low density gas atmosphere.
19 . The method of claim 18 , wherein the groove is formed on first and second opposing surfaces of the first film.
20 . The method of claim 19 , wherein the second film is attached to the first surface of the first film, and the second film is attached to the second surface of the first film.
21 . The method of claim 18 , wherein the low density gas in the low density gas atmosphere is helium (He).
22 . The method of claim 18 , wherein the second film is attached to the first film in a chamber filled with low density gas.
23 . The method of claim 18 , wherein the second film is attached to the first film in a low density gas shower atmosphere.