Liquid Crystal Display Device and Method of Manufacturing the Same

A liquid crystal display device comprising:

• a liquid crystal layer interposed between a first substrate and a second substrate opposed to each other;
• a thin film transistor circuit as a switching element;
• a reflection display portion and a transmission display portion;
• a light-transparent pixel electrode and a light-transparent common electrode which are laminated above the first substrate via an insulating film, with the pixel electrode placed as an upper layer and the common electrode placed as a lower layer;
• a color filter formed on the second substrate;
• a non-light-transparent reflective plate formed under the common electrode in a reflection display region of the first substrate;
• an organic polymer layer formed on the reflective plate and having an oxidized surface;
• a layer having one of a siloxane structure and a silazane structure on a surface of the organic polymer layer;
• a polarizing layer made of chromonic liquid crystalline molecules between the common electrode and the reflective plate;
• and
• an organic insulating film covering the polarizing layer.

A liquid crystal display device comprising:

• a liquid crystal layer interposed between a first substrate and a second substrate opposed to each other;
• a thin film transistor circuit as a switching element;
• a reflection display portion and a transmission display portion;
• a light-transparent pixel electrode and a light-transparent common electrode which are laminated above the first substrate via an insulating film, with the light-transparent pixel electrode placed as an upper layer and the light-transparent common electrode placed as a lower layer;
• a color filter formed on the second substrate;
• a non-light-transparent reflective plate formed under the common electrode in a reflection display region of the first substrate;
• an inorganic insulating film layer formed above the reflective plate;
• a polarizing layer made of chromonic liquid crystalline molecules between the common electrode and the reflective plate;
• and
• an organic insulating film covering the polarizing layer.

A method of manufacturing a liquid crystal display device comprising a liquid crystal layer interposed between a first substrate and a second substrate opposed to each other, a thin film transistor circuit as a switching element, a reflection display portion and a transmission display portion, the method comprising:

• laminating a light-transparent pixel electrode and a light-transparent common electrode above the first substrate via an insulating film, with the pixel electrode placed as an upper layer and the common electrode placed as a lower layer;
• forming a color filter on the second substrate;
• forming a non-light-transparent reflective plate under the common electrode in a reflection display region of the first substrate;
• forming an organic polymer layer with an oxidized surface above the reflective plate;
• forming a layer having one of a siloxane structure and a silazane structure on a surface of the organic polymer layer after oxidation treatment of the surface;
• forming a polarizing layer by applying a solution made of a chromonic liquid crystal between the common electrode and the reflective plate followed by drying;
• and
• forming an organic insulating film covering the polarizing layer.

A method of manufacturing a liquid crystal display device comprising a liquid crystal layer interposed between a first substrate and a second substrate opposed to each other, a thin film transistor circuit as a switching element, a reflection display portion and a transmission display portion, the method comprising:

• laminating a light-transparent pixel electrode and a light-transparent common electrode above the first substrate via an insulating film, with the pixel electrode placed as an upper layer and the common electrode placed as a lower layer;
• forming a color filter on the second substrate;
• forming a non-light-transparent reflective plate under the common electrode in a reflection display region of the first substrate;
• forming an inorganic insulating film layer above the reflective plate;
• forming a polarizing layer by applying a solution made of a chromonic liquid crystal between the common electrode and the reflective plate followed by drying;
• and
• forming an organic insulating film covering the polarizing layer.