초록 ▼

This invention provides a method of fabrication and structure for spacers between the anode substrate and the cathode substrate of a field emission display. The spacers have a high aspect ratio and which will be invisible to the human eye in the display image. An adhesive dielectric paste of glass f

This invention provides a method of fabrication and structure for spacers between the anode substrate and the cathode substrate of a field emission display. The spacers have a high aspect ratio and which will be invisible to the human eye in the display image. An adhesive dielectric paste of glass frit in a binder is formed in cylindrical holes in a photoresist layer. Glass spacer spheres are placed on each column of dielectric paste. When fired the glass frit coalesces into a solid glass rod and bonds the glass spacer sphere to one end of the solid glass rod and the anode substrate to the other end of the solid glass rod. The firing also burns away the photoresist layer. The dark area in the image due to the spacers is less than 50 micrometers which will be invisible to the human eye.

대표청구항 ▼

[ What is claimed is:] [1.] A field emission display, comprising:a cathode structure having emitters, gate insulators, and gate electrodes formed on said gate insulators;a transparent substrate having a first surface;a transparent conductor layer formed on said first surface of said transparent subs

[ What is claimed is:] [1.] A field emission display, comprising:a cathode structure having emitters, gate insulators, and gate electrodes formed on said gate insulators;a transparent substrate having a first surface;a transparent conductor layer formed on said first surface of said transparent substrate;a number of solid dielectric posts wherein each said solid dielectric post has a first circular end, a second circular end, and a length wherein said first circular end of each said solid dielectric post is bonded to said transparent conducting layer;a phosphor layer formed on said transparent conductor layer except those regions of said transparent conductor layer bonded to said first circular ends of said solid dielectric posts; anda number of spacer spheres equal to the number of solid dielectric posts wherein one said spacer sphere is bonded to said second circular end of each said solid dielectric post and contacts one said gate electrode of said cathode structure.