POSITIVE TYPE PHOTORESIST COMPOSITION FOR LIQUID CRYSTAL

PURPOSE: To improve the application characteristic of a positive type photoresist composition for manufacturing a liquid crystal display by dissolving a quinonediazide photosensitive agent and an alkali-soluble novolak resin to a solvent component containing 2-heptanone to constitute the composition...

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Bibliographische Detailangaben
Hauptverfasser:	NAGASE KYOKO, SHINAGAWA HIROSHI, TAKAHASHI KENJI, KOTANI YOSHIKO
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS SPECIALLY ADAPTED THEREFOR CHEMISTRY CINEMATOGRAPHY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 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 ELECTROGRAPHY FREQUENCY-CHANGING HOLOGRAPHY MATERIALS THEREFOR METALLURGY NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS ORGANIC MACROMOLECULAR COMPOUNDS ORIGINALS THEREFOR PHOTOGRAPHY PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	PURPOSE: To improve the application characteristic of a positive type photoresist composition for manufacturing a liquid crystal display by dissolving a quinonediazide photosensitive agent and an alkali-soluble novolak resin to a solvent component containing 2-heptanone to constitute the composition. CONSTITUTION: This composition is formed by dissolving a quinonediazide photosensitive agent and an alkali-soluble novolak resin in a solvent component containing 2-heptanone, and used for manufacturing a liquid crystal display. As the quinonediazide photosensitive agent, which is not particularly limited, for example, an ester obtained by condensing a polyhydroxy compound having at least three phenolic hydroxy groups in the molecule and a 1,2-quinonediazide sulfonic acid halide under the presence of a base such as triethylamine is given. As the alkali-soluble novolak resin, which is neither particularly limited, a resin obtained by condensing a phenolic compound with aldehyde by ordinary method is generally used.