Liquid crystal display device and manufacturing method thereof

A liquid crystal display device comprising:

• a liquid crystal layer including therein at least one first spacer maintaining a thickness of the liquid crystal layer;
• a first substrate provided on a first side of the liquid crystal layer;
• a second substrate including an interlayer insulating film having the same or greater hardness than the first spacer, the interlayer insulating film being between a pixel electrode and at least one switching element for controlling a display state of a pixel and a base substrate facing the first substrate through the liquid crystal layer and the interlayer insulating film, and
• a sealing member for sealing the liquid crystal layer between the first and second substrates;
• wherein the interlayer insulating film has a rough surface provided with film property improvement treatment.

A liquid crystal display device, comprising:

• a liquid crystal layer including therein at least one first spacer for maintaining a thickness of the liquid crystal layer;
• a first substrate provided on one side of the liquid crystal layer;
• a second substrate including a resilient and elastic interlayer insulating film and provided between a pixel electrode and at least one switching element for controlling a display state of a pixel;
• and a base substrate facing the first substrate through the liquid crystal layer and the interlayer insulating film;
• and
• a sealing member for scaling the liquid crystal layer between the first and second substrates;
• wherein the interlayer insulating film is specified to have a thickness in a range of 1.5 μm to 4 μm.

A liquid crystal display device comprising:

• a liquid crystal layer including therein at least one first spacer for maintaining a thickness of the liquid crystal layer;
• a first substrate provided on a first side of the liquid crystal layer;
• a second substrate having an elastic interlayer insulating film, a pixel electrode facing a first side of the interlayer insulating film, at least one switching element for controlling a display state of a pixel facing a second side of the interlayer insulating film, and a base substrate facing the at least one switching element and the second side of the interlayer insulating film;
• and where the second substrate is on a second side of the liquid crystal layer;
• a sealing member for sealing the liquid crystal layer between the first and second substrates;
• wherein the interlayer insulating film is made of a rubber-like elastic macromolecule, and the elastic macromolecule is at least one macromolecule selected from the group consisting of polyolefin elastomer and polyurethane rubber.

A liquid crystal display device comprising:

• a liquid crystal layer including at least one first spacer maintaining a thickness of the liquid crystal layer;
• a first substrate provided on a first side of the liquid crystal layer;
• a second substrate including an elastic interlayer insulating film, a pixel electrode facing a first side of the interlayer insulating film, a second substrate and at least one switching element for controlling a display state of a pixel both facing a second side of the interlayer insulating film, and a base substrate facing the at least one switching element and the interlayer insulation film, where the second substrate faces a second side of the liquid crystal layer and faces the first substrate through the liquid crystal layer;
• a sealing member for sealing the liquid crystal layer between the first and second substrates;
• wherein the interlayer insulating film is made of a rubber-like elastic macromolecule, and the interlayer insulating film has a rough surface provided with a film property improvement treatment.

A method of manufacturing a liquid crystal display device including a pixel electrode and a switching element for determining a display state of a pixel, an interlayer insulating film disposed between the switching element and the pixel electrode, and a base substrate provided with the interlayer insulating film, the switching element and the pixel electrode, said manufacturing method comprising the steps of:

• (1) providing the switching element on the base substrate;
• (2) providing the interlayer insulating film on the switching element;
• (3) improving film property by making an interlayer insulating film surface rough;
• and
• (4) providing the pixel electrode on the interlayer insulating film.

A liquid crystal display device comprising:

• a liquid crystal layer including therein at least one first spacer for maintaining a thickness of the liquid crystal layer;
• a first substrate provided on one side of the liquid crystal layer;
• a second substrate including a base substrate facing the first substrate through the liquid crystal layer, an interlayer insulating film between the base substrate and the liquid crystal layer except in a sealing area on the base substrate, and on respective sides of the interlayer insulating film is a pixel electrode and at least one switching element for controlling a display state of a pixel, and
• a sealing member, in contact with the second substrate in the sealing area, for sealing the liquid crystal layer between the first and second substrates, wherein the sealing member includes a second spacer, larger than the first spacer, for maintaining a thickness of the sealing member.

A liquid crystal display device comprising:

• a liquid crystal layer including therein at least one first spacer for maintaining a thickness of the liquid crystal layer;
• a first substrate provided on one side of the liquid crystal layer;
• a second substrate including a base substrate facing the first substrate through the liquid crystal layer, an interlayer insulating film between the base substrate and the liquid crystal layer except in a sealing area on the base substrate, and on respective sides of the interlayer insulating film is a pixel electrode and at least one switching element for controlling a display state of a pixel, and
• a sealing member, in contact with the second substrate in the sealing area, for sealing the liquid crystal layer between the first and second substrates, wherein the sealing member includes a second spacer, having a greater hardness than the first spacer, for maintaining a thickness of the sealing member.

A liquid crystal display device comprising:

• a liquid crystal layer including therein at least one first spacer for maintaining a thickness of the liquid crystal layer;
• a first substrate provided on one side of the liquid crystal layer;
• a second substrate including a base substrate facing the first substrate through the liquid crystal layer, and an interlayer insulating film between the base substrate and the liquid crystal layer except in a sealing area on the base substrate, and provided on respective sides of the interlayer insulating film is a pixel electrode and at least one switching element for controlling a display state of a pixel;
• a sealing member, in contact with the second substrate in the sealing area, for sealing the liquid crystal layer between the first and second substrates;
• and
• a middle film, provided on the sealing area of the base substrate, having better adherence than the base substrate.

A liquid crystal display device comprising:

• a liquid crystal layer including therein at least one first spacer for maintaining a thickness of the liquid crystal layer;
• a first substrate provided on one side of the liquid crystal layer;
• a second substrate including a base substrate facing the first substrate through the liquid crystal layer, an interlayer insulating film between the base substrate and the liquid crystal layer except in a sealing area on the base substrate, and on respective sides of the interlayer insulating film is a pixel electrode and at least one switching element for controlling a display state of a pixel;
• a sealing member, in contact with the second substrate in the sealing area, for sealing the liquid crystal layer between the first and second substrates;
• and
• wherein the interlayer insulating film in a neighborhood of the sealing area is provided to be thinner than the interlayer insulating film in the other areas and to form a downward slope towards the sealing area.

A method of manufacturing a liquid crystal display device including:

• a liquid crystal layer having at least one first spacer maintaining a thickness of the liquid crystal layer;
• and
• a sealing member, including a second spacer different from the first spacer, a first substrate and a second substrate disposed on respective sides of the liquid crystal layer, wherein said manufacturing method comprising the steps of:
• (1) encasing the second spacer in the sealing member in;
• and
• (2) after step (1), sealing the first spacer and the liquid crystal layer between the first and second substrates, and the sealing member includes the second spacer.

A liquid crystal display device comprising:

• a liquid crystal layer including therein at least one first spacer maintaining a thickness of the liquid crystal layer;
• a first substrate provided on a first side of the liquid crystal layer;
• a second substrate including an interlayer insulating film and having the same or greater hardness than the first spacer, the interlayer insulating film being provided between a pixel electrode and at least one switching element for controlling a display state of a pixel;
• and a base substrate facing the first substrate through the liquid crystal layer and the interlayer insulating film;
• a sealing member for sealing the liquid crystal layer between the first and second substrates wherein the interlayer insulating film is made of resin having a transmittance of a visible ray area of not less than 90%, and not greater than 100%,
• wherein the interlayer insulating film is made of a material having a spectral transmittance of nearly to 100% for green and red colors, and having a spectral transmittance for a blue color in a range of 90% to 100%.