Anode screen for a phosphor display and method of making the same

A phosphor screen comprising:

• a light permeable faceplate,
• a translucent conductive material over said faceplate;
• and
• a layer of phosphor over said conductive material including openings therein that expose corresponding regions of the conductive material.

An anode screen for a field emission display, comprising:

• a glass substrate having a first surface;
• a light permeable electrode comprising electrically conductive material disposed against the first surface of said glass substrate;
• and
• a layer of phosphor disposed substantially continuously over and against said electrode, said phosphor layer defining a plurality of openings that expose portions of said electrode.

A field emission display comprising:

• a cathode emitter plate;
• and
• an anode screen disposed in opposing relationship to said cathode emitter plate, said anode screen comprising:
• a light permeable substrate, and
• a layer of phosphor disposed over a surface of said substrate facing said emitter plate and defining a plurality of openings therethrough.

A method of fabricating a phosphor screen, comprising the steps of:

• providing a substrate;
• disposing electrically conductive material against said substrate;
• depositing phosphor against said electrically conductive material;
• and
• forming a plurality of openings through said phosphor layer to expose portions of said electrically conductive material.

A method of fabricating a faceplate, comprising the steps of:

• providing a transparent substrate;
• forming an electrode comprising light permeable, electrically conductive material over a surface of said transparent substrate;
• depositing a layer of phosphorescent material over said electrode;
• and
• patterning said phosphorescent material layer to define a plurality of holes therethrough.

A method of fabricating a phosphor screen for a field emission display, said method comprising the steps of:

• providing a substantially transparent substrate;
• providing a translucent electrode layer comprising electrically conductive material over said substrate;
• forming a substantially continuous layer of phosphor over a display region of said substrate;
• and
• forming a plurality of apertures in said layer of phosphor.

A method of assembling a field emission display, said method comprising the steps of:

• providing a phosphor anode screen comprising translucent conductive material and phosphor layered sequentially over a substrate, said phosphor layer defining a plurality of openings therethrough that expose portions of the layer of translucent conductive material;
• providing a cathode emitter plate having a plurality of electron emitters;
• and
• disposing said cathode emitter plate in opposing relationship to said phosphor anode screen.

A method of operating a field emission display, said method comprising the steps of:

• providing a phosphor anode screen comprising translucent conductive material and phosphor layered sequentially over a substrate, said phosphor layer defining a plurality of openings therethrough that expose portions of the layer of translucent conductive material;
• providing a cathode emitter plate having a plurality of electron emitters in spaced and opposing relationship to said phosphor anode screen;
• establishing a voltage potential between the translucent conductive material layer of said phosphor anode screen and at least one electron emitter of said cathode emitter plate;
• emitting electrons from said at least one electron emitter;
• bombarding at least one pixel region of said phosphor layer with the emitted electrons of respective said at least one electron emitter, said at least one pixel region between neighboring openings of said plurality;
• and
• draining electrons from said at least one pixel region to said translucent conductive material through openings of respective said neighboring openings.