METHOD FOR MANUFACTURING COLOR FILTER AND THE SAME

• Main Authors: KITAZAWA KAZUSHIGE, YAMAUCHI TAKASHI, AKAGI AI
• Format: Patent
• Language: English
• Published: 09.10.2008
• Subjects: DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

PROBLEM TO BE SOLVED: To provide a color filter manufacturing method for improving flatness in a pixel of a colored pattern when manufacturing the color filter by using an ink jet method. SOLUTION: The color filter manufacturing method comprises a process for forming a light shielding layer of a prescribed pattern on a transparent substrate, a heating process for heating at 50 to 150 °C for 1 to 5 minutes to form a color layer having a first film thickness by discharging coloring materials of respective colors to an aperture part of the light shielding layer by the ink jet method so as to form a defined array and then evaporating a solvent and a heating process for heating at 180 to 250 °C for 10 to 60 minutes to form a colored layer having the second film thickness by thermally curing the colored layer formed in the heating process; wherein, the ratio (T2/T1) of the second film thickness (T2) to the first film thickness (T1) is 0.4 to 0.7. COPYRIGHT: (C)2009,JPO&INPIT