Method for screen printed lacquer deposition for a display device
View Patent ↗The present invention is a method for screen printed lacquer deposition for a display device comprising aligning a mask on top of a faceplate of the display device. Next, the present invention deposits a lacquer material above the mask. Then, the present invention performs a screen printing process to apply the lacquer material through the mask and onto the faceplate to form a lacquer layer on the faceplate. Finally, the present invention dries the lacquer layer.
1. A method for screen printed lacquer deposition for a display device comprising:
aligning a mask on top of a faceplate of said display device so as to cover rows and columns between sub-pixel areas of said display device, wherein said mask has an opening in a shape which corresponds to an individual sub-pixel area of said display device;
depositing a non-conformal lacquer material on said mask and into individual sub-pixel areas by spraying non-conformal lacquer material on said mask;
drawing a blade across the top surface of the mask to remove excess non-conformal lacquer material and to force non-conformal lacquer material into individual sub-pixel areas;
drying said non-conformal lacquer material; and
depositing an aluminum layer upon said non-conformal lacquer material;
wherein drawing said blade is performed such that the non-conformal lacquer material is deposited on a phosphor material layer in each of the sub-pixel areas and, subsequent to being dried, the non-conformal lacquer covers inside walls of each of the sub-pixel areas from the phosphor material layer up to the top of the inside walls of each of the sub-pixel areas.
2. The method for screen printed lacquer deposition as recited in claim 1 , wherein said drying of said non-conformal lacquer material comprises:
removing said mask;
placing said faceplate into a chamber; and
evaporating a solvent in said non-conformal lacquer material.