Method of forming a color filter for a liquid crystal color display apparatus
AssigneeStanley Electric Co., Ltd.
InventorsMasanobu Aizawa, Shigekazu Yamauchi, Hisao Sekine, Shinji Kanagawa
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Abstract
A method is provided for forming a color filter for a liquid crystal display apparatus which requires considerably reduced area on a transparent substrate for performing electrodeposition of the color filter. The method includes coating non-extended liquid crystal driving terminal portions with a protective film with a notch etched therein for exposing an end edge portion of the non-extended driving terminal; and coating the non-extended driving terminals with a transverse strip of conductive material to place the non-extended terminals into a conducting state.
Claims2
A method of forming a color filter, the method comprising the steps of:
- forming on a transparent substrate a plurality of groups of liquid crystal driving terminal portions of transparent electrodes, each group having as many extended terminal portions of staggered lengths as one less than the number of colors to be filtered and each group having one non-extended terminal portion, thereby providing a plurality of terminals for electrodeposition;
- forming a protective film so as to cover selected portions of the transparent electrodes including each of said non-extended terminal portions;
- forming a plurality of notches for exposing an end edge portion of each of said non-extended terminals;
- for each color filter portion to be formed, coating end edge portions of all terminals for electrodeposition associated with the color filter portion to be formed with a transverse strip of a conductive material that is to be electrically energized at the time of electrodeposition, so as to place the terminals for electrodeposition associated with the color filter portion to be formed in a conducting state
- and applying a current between transparent electrodes of the terminal associated with the color filter portion to be formed and opposed electrodes in an electrodeposition bath liquid to form by electrodeposition a color filter portion having a predetermined color on only the transparent electrodes that are in a conducting state.
Dependencies are inferred from the claim text.