Manufacturing method of acrylic copolymer resin for layer insulation film for TFT-LCD

• Main Author: YUN HYO-MIN,RYO TAI-HUN,KIM DONG-MIN,KIM PYONG-UI,KOO IL-HYO,YUN CHU-PYO,JONG EIUL,KIM DONG-MYUNG
• Format: Patent
• Language: English
• Published: 09.11.2005
• Edition: 7
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMISTRY; COMPOSITIONS BASED THEREON; 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; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; FREQUENCY-CHANGING; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; ORGANIC MACROMOLECULAR COMPOUNDS; PHYSICS; SEMICONDUCTOR DEVICES; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; THEIR PREPARATION OR CHEMICAL WORKING-UP

PROBLEM TO BE SOLVED: To provide a method for producing an acrylic copolymer resin for an interlayer insulating film of a TFT-LCD (thin-film transister-liquid crystal display), and the interlayer insulating film of the TFT-LCD using it. SOLUTION: The method for producing the acrylic copolymer resin for the interlayer insulating film of the TFT-LCD comprises a step for purifying a copolymer solution produced by polymerizing, in the presence of a solvent, (i) an unsaturated carboxylic acid, an unsaturated carboxylic anhydride or a mixture thereof, (ii) a styrenic monomer, (iii) an epoxy-based monomer, (iv) an isobornyl-based monomer, and (v) a dicyclopentadiene-based monomer. The acrylic copolymer resin for the interlayer insulating film of the TFT-LCD is produced by using the method and the interlayer insulating film of the TFT-LCD is obtained by applying the acrylic copolymer resin. The developing properties and the heat resistance of the film can be improved and the transmittance also can be improved by applying the acrylic copolymer resin produced by the above method to a positive interlayer insulating film for the TFT-LCD. COPYRIGHT: (C)2006,JPO&NCIPI