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US 7,452,567 B2Granted
Method for fabricating color filter of liquid crystal display device
AssigneeLG Display Co., Ltd.
InventorsMyoung Kee Baek, Kwon Shik Park
Life of this patent
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Abstract
A method for fabricating a color filter of an LCD device includes: providing a cliché having a plurality of grooves; filling Red, Green and Blue colored inks into the grooves of the cliché; and repositioning the Red, Green and Blue colored inks onto a substrate of the LCD device.
Claims12
A method for fabricating a color filter of an Liquid Crystal Display (LCD) device comprising:
- providing a cliché including a flat base layer and a buffer layer having a plurality of grooves thereon that only partially extend through the buffer layer;
- filling Red, Green and Blue colored inks into the grooves of the cliché;
- and
- repositioning the Red, Green and Blue colored inks onto a substrate of the LCD device, wherein repositioning further comprises:
- transferring the colored inks filled into the grooves of the cliché onto a printing roll by contacting and rotating the printing roll on the cliché in which the Red, Green and Blue colored inks are filled;
- and
- applying the Red, Green and Blue colored inks on the printing roll onto the substrate by rotating the printing roll across the substrate, wherein the buffer layer protects the substrate by absorbing the impact of the printing roll,
- wherein a first heater and a second heater are respectively provided to the cliché and the printing roll to heat the cliché and the printing roll to different temperatures, thereby adhesion between the printing roll and the ink is larger than adhesion between the cliché and the ink.
5 more elements
A method for fabricating color filter of a Liquid Crystal Display (LCD) device, comprising:
- providing a cliché including a flat base layer and a buffer layer having a plurality of grooves thereon that only partially extend through the buffer layer;
- filling Red, Green and Blue colored inks into the grooves of the cliché, wherein filling is performed using a plurality of ink jets;
- removing the Red, Green and Blue colored inks from the grooves of the cliché by transferring the colored inks filled into the grooves of the cliché onto a printing roll;
- and
- applying the Red, Green and Blue colored inks onto a substrate of the LCD device from the printing roll, wherein the buffer layer protects the substrate by absorbing the impact of the printing roll,
- wherein a first heater and a second heater are respectively provided to the cliché and the printing roll to heat the cliché and the printing roll to different temperatures, thereby adhesion between the printing roll and the ink is larger than adhesion between the cliché and the ink.
3 more elements
Dependencies are inferred from the claim text.