Reflective liquid crystal display apparatus and production method thereof

Abstract

The present invention provides a reflective liquid crystal display (LCD) apparatus including a glass substrate 53 , a transparent electrode 55 arranged on the glass substrate, a glass substrate 40 , a thin film transistor (TFT) 44 arranged on the glass substrate 40 , an insulation film 45 arranged on the TFT 44 and having a convex/concave structure 45 a on its surface, a reflection electrode 48 arranged along the convex/concave structure 45 a and connected to the TFT 44 , and a liquid crystal layer 56 sandwiched between the transparent electrode 55 and the reflection electrode 48 . The insulation film 48 protects the TFT transistor 44 after being formed and has the convex/concave structure 45 a formed irregular arrangement of regions having different film thickness values. Thus, it is possible to prevent deterioration of the switching element during the production as well as to reduce the number of production steps.

1 - 15 . (canceled).  
   
   
       16 . An LCD apparatus production method comprising the steps of: 
 among a pair of a first substrate and a second substrate, each of which is transparent and is separately arranged so as to have a predetermined distance between each other, forming a transparent electrode on the first substrate;    forming a switching element on the second substrate;    on the second substrate, forming an insulation film on an upper part of the switching element in a continuous face shape so as to protect the switching element by overlaying the same;    on the insulation film where the switching element is; protected, forming a convex/concave structure on a surface facing the first substrate;    forming a reflection electrode on the insulation film and then providing on a surface, facing the first substrate, of the reflection electrode a shape in which the convex/concave structure of the insulation film is reflected; and    filling a liquid crystal layer in a space between the transparent electrode of the first substrate and the reflection electrode of the second substrate.    
   
   
       17 . The method of producing the LCD apparatus as claimed in  claim 16 , wherein the insulation film is laminated as a single layer structure and the convex/concave structure is formed as a part of the surface, facing the first substrate, of the insulation film.  
   
   
       18 . The method of producing the LCD apparatus as claimed in  claim 17 , wherein a protrusion of the convex/concave structure is formed as a continuous smooth shape.  
   
   
       19 . The method of producing the LCD apparatus as claimed in  claim 17 , wherein a plurality of protrusions of the convex/concave structure and a plurality of indentations indented downward from the protrusions are formed and arranged irregularly by using a mask pattern.  
   
   
       20 . The method of producing the LCD apparatus as claimed in  claim 19 , wherein the protrusions are formed and arranged by using the mask pattern having an island-shaped or line-shaped pattern.  
   
   
       21 . The method of producing the LCD apparatus as claimed in  claim 19 , wherein the indentations are formed and arranged ‘by using the mask pattern having a hole-shaped or line-shaped pattern.  
   
   
       22 . The method of producing the LCD apparatus as claimed in  claim 19 , wherein the protrusions of the convex/concave structure are formed and arranged irregularly using the mask pattern having the island-shaped or, line-shaped pattern, based on one pixel or more than one pixels as a unit.  
   
   
       23 . The method of producing the LCD apparatus as claimed in  claim 19 , wherein the indentations of the convex concave structure are formed and arranged irregularly using the mask pattern having the hole-shaped or line-shaped pattern, based on one pixel or more than one pixels as a unit.  
   
   
       24 . The method of producing the LCD apparatus as claimed in  claim 16 , wherein the insulation film is laminated as a single layer structure and the convex/concave structure is formed on the surface, facing the first substrate, of the insulation film by using a separate insulation film.  
   
   
       25 . The method of producing the LCD apparatus as claimed in  claim 24 , wherein a protrusion of the convex/concave structure is formed as a continuous smooth shape.  
   
   
       26 . The method of producing the LCD apparatus as claimed in  claim 25 , wherein a plurality of protrusions of the convex/concave structure and a plurality of indentations indented downward from the protrusions are formed and arranged irregularly by using a mask pattern.  
   
   
       27 . The method of producing the LCD apparatus as claimed in  claim 24 , wherein the protrusions are formed and arranged by using the mask pattern having an island-shaped or line-shaped pattern.  
   
   
       28 . The method of producing the LCD apparatus as claimed in  claim 24 , wherein the indentations are formed and arranged by using the mask pattern having a hole-shaped or line-shaped pattern.  
   
   
       29 . The method of producing the LCD apparatus as claimed in  claim 24 , wherein the protrusions of the convex/concave structure are formed and arranged irregularly using the mask pattern having the island-shaped or line-shaped pattern, based on one pixel or more than one pixels as a unit.  
   
   
       30 . The method of producing the LCD apparatus as claimed in  claim 24 , wherein the indentations of the convex/concave structure are formed and arranged irregularly using the mask pattern hawing the hole-shaped or line-shaped pattern, based on one pixel or more than one pixels as a unit.  
   
   
       31 . The method of producing LCD apparatus as claimed in  claim 16 , wherein the insulation film is formed of a transparent photosensitive material where a back light is able to pass through.