Methods for producing pattern-forming body

Abstract

A method of producing a pattern-forming body with high accuracy with no need for a post-exposure treatment and without allowing any photocatalyst to remain in the resultant pattern-forming body and whereby any problematic effect of the photocatalyst in the pattern-forming body is eliminated. The method includes providing a photocatalyst-containing layer-sided substrate and a pattern-forming body substrate having a characteristic-changeable layer, which is changed by the effect of the photocatalyst in the photocatalyst-containing layer, and a light-shading part formed as a pattern in such a manner that the photocatalyst-containing layer and the characteristic-changeable layer are brought into contact with each other, followed by exposure on the side of the pattern-forming body substrate to change the characteristics of the characteristic-changeable layer of the exposed part, followed by removing the photocatalyst-containing layer-sided substrate.

1 . A functional element comprising;
 transparent substrate,   a characteristic-changeable layer formed on the transparent substrate whose characteristics are changed by an effect of a photocatalyst, and   a light-shading part formed as a pattern,   wherein the functional element further comprises a functional part positioned along the pattern formed by the change in the characteristics in the characteristic-changeable layer.   
     
     
         2 . The functional element according to  claim 1 , wherein the light-shading part is formed as the pattern on the transparent substrate, and is covered with the characteristic-changeable layer formed thereon. 
     
     
         3 . The functional element according to  claim 1 , wherein the characteristic-changeable layer is a wettability-changeable layer whose wettability is changed by the effect of the photocatalyst. 
     
     
         4 . The functional element according to  claim 3 , wherein a contact angle with a liquid whose surface tension is 40 mN/m on the wettability-changeable layer is 10° or more in a non-exposed part and 9° or less in an exposed part. 
     
     
         5 . The functional element according to  claim 3 , wherein the wettability-changeable layer is a layer containing an organopolysiloxane. 
     
     
         6 . The functional element according to  claim 5 , wherein the organopolysiloxane is a polysiloxane containing a fluoroalkyl group. 
     
     
         7 . The functional element according to  claim 5 , wherein the organopolysiloxane is an organopolysiloxane which is a hydrolytic condensate or a hydrolytic co-condensate of one or more silicon compounds represented by Formula: Y n SiX (4-n) , in which Y denotes an alkyl group, fluoroalkyl group, vinyl group, amino group, phenyl group, or epoxy group, X denotes an alkoxy group or halogen, and n denotes an integer of 0 to 3. 
     
     
         8 . The functional element according to  claim 3 , wherein the wettability-changeable layer is a layer containing no photocatalyst. 
     
     
         9 . The functional element according to  claim 1 , wherein the characteristic-changeable layer is a decomposition-removable layer which is decomposed and removed by the effect of the photocatalyst. 
     
     
         10 . The functional element according to  claim 9 , wherein the light-shading part has been formed as the pattern on the transparent substrate, and is covered with the decomposition-removable layer. 
     
     
         11 . The functional element according to  claim 9 , wherein a contact angle of a liquid with the decomposition-removable layer is different from a contact angle of a liquid with the transparent substrate which comes out when the decomposition-removable layer is decomposed and removed. 
     
     
         12 . The functional element according to  claim 9 , wherein the decomposition-removable layer is either one of a self-assembled monolayer, Langmuir-Blodgett film, or layer-by-layer self-assembled film. 
     
     
         13 . The functional element according to  claim 9 , wherein a wettability on the transparent substrate is 9° or less as a contact angle with a liquid whose surface tension is 40 mN/m and a wettability on the decomposition-removable layer is 10° or more. 
     
     
         14 . The element according to  claim 1 , wherein the functional part is a metal. 
     
     
         15 . A color filter comprising a pixel part as the functional part of the functional element according to  claim 1 . 
     
     
         16 . A microlens comprising a lens part as the functional part of the functional element according to  claim 1 .