Radiation sensitive resin composition, cathode separator and EL display device

Abstract

A radiation sensitive resin composition for the formation of cathode separators for EL display devices which have heat resistance and adhesion required for cathode separators for EL display devices and an inversely tapered shape, cathode separators formed therefrom and an EL display device comprising the cathode separators. The radiation sensitive resin composition for the formation of cathode separators for EL display devices comprises (A) an alkali soluble resin, (B) the compound represented by the formulae (I) to (IV) and (C) a trihalomethyltriazine and/or an onium salt, the cathode separators are formed from the radiation sensitive resin composition and the EL display device comprises the cathode separators formed from the radiation sensitive resin composition.

1 - 6 . (canceled)  
   
   
       7 . A cathode separator for EL display devices formed from a radiation sensitive composition comprising: 
 (A) an alkali soluble resin;    (B) at least one compound selected from the group consisting of a compound represented by the following formula (I):                          wherein six Rs may be the same or different and each a hydrogen atom or an alkyl group having 1 to 6 carbon atoms,    a compound represented by the following formula (II):                          wherein Rs are defined as above,    a compound represented by the following formula (III):                          wherein Rs are defined as above,    and a compound represented by the following formula (IV):                          wherein Rs are defined as above;    (C) a trihalomethyltriazine represented by the following formula (V):                          wherein X is a halogen atom and A is a CX 3  or a group represented by the following formula:                          B, D and E are each independently a hydrogen atom, alkyl group, aryl group, alkoxy group, aryloxy group, thioalkyl group or thioaryl group having 1 to 10 carbon atoms, halogen atom, cyano group, nitro group, secondary amino group having an alkyl group with 1 to 10 carbon atoms, carboxyl group, hydroxyl group, ketoalkyl group or ketoaryl group having 1 to 10 carbon atoms, or alkoxycarbonyl group or alkylcarbonyloxy group having 1 to 20 carbon atoms, and m is an integer of 1 to 5, or an onium salt which serves as an optically acid generating agent represented by the following formula (VI):      (A) n Z + Y −   (VI)   wherein A is as defined hereinabove, Z is sulfur or iodine, Y is BF 4 , PF 6 , SbF 6 , AsF 6 , p-toluene sulfonate, trifluoromethane sulfonate or trifluoroacetate, and n is 2 or 3, and    (D) an ultraviolet light absorber selected from the group consisting of benzotriazoles, salicylates, substituted acrylonitriles, coumarins, flavones and chalcones,    wherein the cathode separator has a trapezoidal cross section with a top side longer than a bottom side and an angle formed by a straight line connecting an upper pattern edge and a lower pattern edge and the top side of 15 to 75°.    
   
   
       8 . A cathode separator for EL display devices formed from a radiation sensitive composition comprising: 
 (A) an alkali soluble resin;    (B) at least one compound selected from the group consisting of a compound represented by the following formula (I):                          wherein six Rs may be the same or different and each a hydrogen atom or an alkyl group having 1 to 6 carbon atoms,    a compound represented by the following formula (II):                          wherein Rs are defined as above,    a compound represented by the following formula (III):                          wherein Rs are defined as above,    and a compound represented by the following formula (IV):                          wherein Rs are defined as above;    (C) a trihalomethyltriazine represented by the following formula (V):                          wherein X is a halogen atom and A is a CX 3  or a group represented by the following formula:                          B, D and E are each independently a hydrogen atom, alkyl group, aryl group, alkoxy group, aryloxy group, thioalkyl group or thioaryl group having 1 to 10 carbon atoms, halogen atom, cyano group, nitro group, secondary amino group having an alkyl group with 1 to 10 carbon atoms, carboxyl group, hydroxyl group, ketoalkyl group or ketoaryl group having 1 to 10 carbon atoms, or alkoxycarbonyl group or alkylcarbonyloxy group having 1 to 20 carbon atoms, and m is an integer of 1 to 5, or an onium salt which serves as an optically acid generating agent represented by the following formula (VI):      (A) n Z + Y −   (VI)   wherein A is as defined hereinabove, Z is sulfur or iodine, Y is BF 4 , PF 6 , SbF 6 , AsF 6 , p-toluene sulfonate, trifluoromethane sulfonate or trifluoroacetate, and n is 2 or 3, and    (D) an ultraviolet light absorber selected from the group consisting of 2-(2-hydroxy-3,5-bis(α,α-dimethylbenzyl)phenyl)-2H-benzotriazole, hydroxyphenylbenzotriazole derivative, condensate between methyl-3-(3-t-butyl-5-(2H-benzotriazol-2-yl)-4-hydroxyphenyl)propionate and polyethylene glycol having a molecular weight of 300, and dibenzylideneacetone,    wherein the cathode separator has a trapezoidal cross section with a top side longer than a bottom side and an angle formed by a straight line connecting an upper pattern edge and a lower pattern edge and the top side of 15 to 75°.