Electrode patterning layer comprising polyamic acid or polyimide, and electronic device employing it

A process for producing a patterned electrode, by irradiating a layer comprising a polyamic acid having repeating units represented by the following formula (1) or a polyimide obtained by cyclodehydration of the polyamic acid, with ultraviolet ray in a pattern shape and then coating with an electrode-forming solution:

• wherein A is a tetravalent organic group, B is a bivalent organic group, each of A and B can be a combination of different groups, and n is a positive integer, provided that at least one type of A is a tetravalent organic group having an alicyclic structure,
• wherein from 10 to 100 mol % of B in the formula (1) is at least one member selected from the structures represented by the following formulae (6) and (7):
• wherein each X independently is a single bond, an ether bond, an ester bond, a thioether bond, an amide bond, a C1-5 alkylene group which may have a branched structure, or a C1-5 alkylenedioxo group which may have a branched structure, R5 is an alkyl group having at most 2 carbon atoms, R6 is a monovalent organic group having a long, chain alkyl group or a fluorinated long chain alkyl group, having at least 6 carbon atoms, and j is 0 or 1.

An electrode patterning layer for forming an electrode pattern prepared by irradiating a layer comprising a polyamic acid having repeating units represented by the following formula (1) or a polyimide obtained by cyclodehydration of the polyamic acid, with ultraviolet ray in a pattern shape:

• wherein A is a tetravalent organic group, B is a bivalent organic group, each of A and B can be a combination of different groups, and n is a positive integer, provided that at least one group of A is a tetravalent organic group having an alicyclic structure,
• wherein the alicyclic structure is at least one member selected from the structures represented by the following formulae (2) to (5):
• wherein in the formula (2), each of R1, R2, R3 and R4 independent of one another is hydrogen, fluorine, or a C1-4 organic group, and R1, R2, R3 and R4 are not simultaneously hydrogen.

An electrode patterning layer for forming an electrode pattern prepared by irradiating a layer comprising a polyamic acid having repeating units represented by the following formula (1) or a polyimide obtained by cyclodehydration of the polyamic acid, with ultraviolet ray in a pattern shape:

• wherein A is a tetravalent organic group, B is a bivalent organic group, each of A and B can be a combination of different groups, and n is a positive integer, provided that at least one group of A is a tetravalent organic group having an alicyclic structure,
• wherein from 10 to 100 mol % of B in the formula (1) is the structures represented by the following formula (7):
• wherein X is a single bond, an ether bond, an ester bond, a thioether bond, an amide bond, a C1-5 alkylene group which may have a branched structure, or a C1-5 alkylenedioxo group which may have a branched structure, R6 is a monovalent organic group having a long chain alkyl group or a fluorinated long chain alkyl group, having at least 6 carbon atoms, and j is 0 or 1.

A process for producing a patterned electrode, by irradiating a layer comprising a polyamic acid having repeating units represented by the following formula (1) or a polyimide obtained by cyclodehydration of the polyamic acid, with ultraviolet ray in a pattern shape and then coating with an electrode-forming solution:

• wherein A is a tetravalent organic group, B is a bivalent organic group, each of A and B can be a combination of different groups, and n is a positive integer, provided that at least one type of A is a tetravalent organic group having an alicyclic structure,
• wherein the alicyclic structure is at least one member selected from the structures represented by the following formulae (2) to (5):
• wherein in the formula (2), each of R1, R2, R3 and R4 independent of one another is hydrogen, fluorine, or a C1-4 organic group, and R1, R2, R3 and R4 are not simultaneously hydrogen.

A process for producing a patterned electrode, by irradiating a layer comprising a polyamic acid having repeating units represented by the following formula (1) or a polyimide obtained by cyclodehydration of the polyamic acid, with ultraviolet ray in a pattern shape and then coating with an electrode-forming solution:

• wherein A is a tetravalent organic group, B is a bivalent organic group, each of A and B can be a combination of different groups, and n is a positive integer, provided that at least one type of A is a tetravalent organic group having an alicyclic structure,
• wherein from 10 to 100 mol % of B in the formula (1) is the structures represented by the following formula (7):
• wherein X is a single bond, an ether bond, an ester bond, a thioether bond, an amide bond, a C1-5 alkylene group which may have a branched structure, or a C1-5 alkylenedioxo group which may have a branched structure, R6 is a monovalent organic group having a long chain alkyl group or a fluorinated long chain alkyl group, having at least 6 carbon atoms, and j is 0 or 1.