Invention Grant
- Patent Title: Focusing electrode and method for field emission displays
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Application No.: US10150238Application Date: 2002-05-16
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Publication No.: US06524154B2Publication Date: 2003-02-25
- Inventor: Zhongyi Xia , Jimmy J. Browning , Charles M. Watkins , David A. Cathey
- Applicant: Zhongyi Xia , Jimmy J. Browning , Charles M. Watkins , David A. Cathey
- Main IPC: H01J9227
- IPC: H01J9227

Abstract:
A high resolution field emission display includes a faceplate and a baseplate. The faceplate includes a transparent viewing layer, a transparent conductive layer formed on the transparent viewing layer and intersecting stripes of light-absorbing, opaque insulating material formed on the transparent conductive layer. The insulating material defines openings less than one hundred microns wide between the intersecting stripes. The faceplate also includes a plurality of localized regions of cathodoluminescent material, each formed in one of the openings. The cathodoluminescent material includes a metal oxide providing reduced resistivity in the cathodoluminescent material. Significantly, the reduced resistivity of the cathodoluminescent material together with the focusing effect of the insulating material provide increased acuity in luminous images formed on the faceplate. The baseplate includes a substrate, an emitter formed on the substrate and a dielectric layer formed on the substrate and having an opening formed about the emitter. The baseplate also includes a conductive extraction grid formed on the dielectric layer and having an opening formed about the emitter.
Public/Granted literature
- US20020130611A1 Focusing electrode and method for field emission displays Public/Granted day:2002-09-19
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