Ink composition and method of fabricating liquid crystal display device using the same

Abstract

Disclosed are an ink composition and a method for fabricating a liquid crystal display (LCD) device using the same, wherein in forming patterns of the LCD device using an imprint lithography and a roll printing, an ink composition with high thermal resistance, consisting of polymer resin and additive both endurable even at a high temperature is used to form fine patterns with constantly maintaining pattern linewidths and line intervals, the ink composition consisting of 5-45% by weight of polymer resin, 5-45% by weight of additive added to retain thermal stability, and 50-90% by weight of organic solvent, wherein the ink composition is endurable even at a high temperature of 90-250° C.

1 . An ink composition consisting of:
 5-45% by weight of polymer resin;   5-45% by weight of additive added to retain thermal stability; and   50-90% by weight of organic solvent,   wherein the ink composition is endurable even at a high temperature of 90-250° C.   
     
     
         2 . The ink composition of  claim 1 , wherein the ink composition is used for forming patterns using an imprint lithography or a roll printing. 
     
     
         3 . The ink composition of  claim 1 , wherein the polymer resin is one or more selected from a group consisting of novolak resin, acryl resin and a is compound thereof. 
     
     
         4 . The ink composition of  claim 1 , wherein the additive is one or more selected from a group consisting of pentaerythritol, metyl gallate, propyl gallate, lauryl gallate, octylgallate, metol, tyramine hydrochloride, 1-(3-hydroxyphenyl)piperazine, 4-bromo-2-(5-isoxazolyl)phenol, 4-(imidazole-1-yl)phenol, apigenin, 2-(4,5-dihydro-1H-imidazole-2-yl)phenol, 3-(4,5-dihydro-1H-imidazole-2-yl)phenol, 4-(4,5-dihydro-1H-imidazole-2-yl)phenol, 4-nitro-2-(1H-pyrazole-3-yl)phenol, 2-(2-hydroxyphenyl)-1H-benzimidazole, 4-(4-methyl-4,5-dihydro-1H-imidazole-2-yl)phenol, 1-amino-2-naphthol hydrochloride, 2,4-diamino phenol dihydrochloride, 2-acetamidophenol, 2-amino-3-nitrophenol, 2-amino-4-chloro-5-nitrophenol, 2-amino-5-nitrophenol, 3-amino-2-naphthol, 3-methoxytyramine hydrochloride, 4,7-dimethoxy-1,10-phenanthroline, 4-amino-1-naphthol hydrochloride, 4-amino-3-chlorophenol hydrochloride, 4-aminophenol hydrochloride, 4-tritylphenol, 8-amino-2-naphthol, biochanin A, chloranil, pentaBromo-phenol, quercetin dihydrate, fisetin, 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene, tris(3,5-di-tert-butyl-4-hydroxybenzyl)isocyanurate, octadecyl-3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate, 2,5-bis(1,1-dimethylpropyl)-1,4-benzenediol, 1,1,3-tris-(2-methyl-4-hydroxy-5-tert-butylphenyl)butane, triethyleneglycol-bis(3-tert-butyl-4-hydroxy-5-methylphenyl)propionate, 2,2-methylenebis(4-methyl-6-(1-methylcyclohexyl)-phenol), and tris(2,4-di-tert-butylphenyl)phosphate. 
     
     
         5 . The ink composition of  claim 1 , further consisting of 0.01-3% by weight of surfactant of total 100% by weight of the ink composition, the surfactant is preventing stains and hole marks of ink material from being generated on silicon polymer. 
     
     
         6 . The ink composition of  claim 1 , further consisting of 0.01-5% by weight of adhesive sensitizer of total 100% by weight of the ink composition, the adhesive sensitizer improving adhesive property with a lower layer. 
     
     
         7 . The ink composition of  claim 1 , further consisting of 0.001-3.0% by weight of visible compound of total 100% by weight of the ink composition, the visible compound remarkably ensuring visibility of the ink composition and improving pattern transfer capability due to being soluble in the polymer resin.