Liquid crystal display device and manufacturing method thereof

A method of manufacturing a liquid crystal display device including a first substrate including a plurality of gate lines, a plurality of data lines, a plurality of pixel electrodes, and an organic insulating film, made of an organic material, being superimposed, in plan view, over the plurality of gate lines, the plurality of data lines, and the plurality of pixel electrodes, and a second substrate including a first colored portion transmitting light of a first color, a second colored portion transmitting light of a second color, and a light-shielding portion disposed in a boundary area between the first colored portion and the second colored portion, for blocking transmittance of light of the first color and light of the second color, the liquid-crystal display device manufacturing method comprising:

• a process of forming the organic insulating film, including
• a step of forming an organic layer by coating an organic photosensitive material onto the first substrate, and
• a step of irradiating the organic layer with light beams of differing amount of light onto a first portion of the organic layer overlapping, in plan view, the first colored portion or the second colored portion, and onto a second portion of the organic layer overlapping, in plan view, the light-shielding portion;
• wherein
• in the step of forming the organic insulating film, the second portion is formed to be of thicker layer thickness than the first portion.

A method of manufacturing a liquid crystal display device including a first substrate including a plurality of gate lines, a plurality of data lines, a plurality of pixel electrodes, and an inorganic insulating film, made of an inorganic material, being superimposed, in plan view, over the plurality of gate lines, the plurality of data lines, and the plurality of pixel electrodes, and a second substrate including a first colored portion transmitting light of a first color, a second colored portion transmitting light of a second color, and a light-shielding portion disposed in a boundary area between the first colored portion and the second colored portion, for blocking transmittance of light of the first color and light of the second color, the liquid-crystal display device manufacturing method comprising:

• a process of forming the inorganic insulating film, including
• a step of forming an inorganic layer onto the first substrate,
• a step of forming a resist layer by coating an organic photosensitive material onto the inorganic layer, a step of irradiating the inorganic layer with light beams of differing amount of light onto a first region of the resist layer overlapping, in plan view, the first colored portion or the second colored portion, and onto a second region of the resist overlapping, in plan view, the light-shielding portion;
• a first resist removing step of removing the first region of the resist layer and leaving the second region of the resist layer;
• a first etching step of etching portions of a first part of the inorganic layer overlapping the first region in plan view;
• and
• a second resist removing step of removing the second region of the resist layer;
• wherein
• in the step of forming the inorganic layer, a second part of the inorganic layer overlapping the second region in plan view is formed to be of thicker film thickness than the first part of the inorganic layer.