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US 8,012,548 B2Granted
Flat panel display and method of fabricating the same
AssigneeLG Display Co., Ltd.
InventorsJin Wuk Kim, Chang Hee Lee
Life of this patent
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Abstract
A flat panel display and a method of fabricating a flat panel display is provided. The flat panel display includes a first plate, a second plate facing the first plate, a pattern spacer formed between the first and the second plates, and an adhesion promoter disposed overlapping the pattern spacer to improve an adhesive strength of the first and the second plates.
Claims11
A flat panel display, comprising:
- a first plate;
- a second plate facing the first plate;
- a pattern spacer formed on the first plate to be fixed on the plate for maintaining the cell gap between the first and the second plates;
- a first alignment film formed of polyimide on the entire surface of the first plate including the pattern spacer;
- a second alignment film formed of polyimide on the entire surface of the second plate;
- and
- an adhesion promoter bonding a part of the first alignment film corresponding to the pattern spacer to the second alignment film to improve an adhesive strength of the first and the second plates,
- wherein the adhesion promoter consists of a mixture of a primer, an active dilute solution and a carrier,
- wherein the primer for adhering an adhesion surface of the first alignment film to the second alignment film, has a composition in the adhesion promoter of about 5 weight % to about 20 weight %,
- wherein the active dilute solution for cleaning and activating the surface being adhered by the primer, includes heptanes, and has a composition in the adhesion promoter of about 60 weight % to about 80 weight %, and
- wherein the carrier for moving the adhesion promoter from a surface of the first alignment film upon which is applied the adhesion promoter to a surface of the second alignment film being adhered, includes NMP(N-methylpyrrolidone), and has a composition range in the adhesion promoter of about 10 weight % to about 20 weight %.
8 more elements
A method of fabricating a flat panel display, comprising steps of:
- forming a first plate and a second plate, the first plate having a pattern spacer to be fixed thereon;
- forming the first alignment film of polyimide on the entire surface of the first plate including the pattern spacer and forming the second alignment film of polyimide on the entire surface of the second plate;
- forming an adhesion promoter on a part of the first alignment film corresponding to the pattern spacer and
- bonding the part of the first alignment film corresponding to the pattern spacer to the second alignment film using the adhesion promoter to join the first plate with the second plate,
- wherein the adhesion promoter consists of a mixture of a primer, an active dilute solution and a carrier,
- wherein the primer for adhering an adhesion surface of the first alignment film to the second alignment film, has a composition in the adhesion promoter of about 5 weight % to about 20 weight %,
- wherein the active dilute solution for cleaning and activating the surface being adhered by the primer, includes heptanes, and has a composition in the adhesion promoter of about 60 weight % to about 80 weight %, and
- wherein the carrier for moving the adhesion promoter from a surface of the first alignment film upon which is applied the adhesion promoter to a surface of the second alignment film being adhered, includes NMP(N-methylpyrrolidone), and has a composition range in the adhesion promoter of about 10 weight % to about 20 weight %.
5 more elements
Dependencies are inferred from the claim text.