Methods using electrophoretically deposited patternable material

A method for use in the production of a display, the method comprising the steps of:

• providing a substrate assembly including a conductive surface;
• providing one or more nonconductive regions formed on the conductive surface, wherein the one or more nonconductive regions have a thickness less than about 15 microns;
• and
• forming a layer of patternable material by electrophoresis over the conductive surface and the one or more nonconductive regions.

A method for use in producing a display having a face plate and a base plate, the face plate having one or more spacers extending from one side thereof for spacing the face plate from the base plate in the display, the method comprising:

• electrophoretically depositing a patternable material over a conductive surface of the face plate in regions adjacent one or more of the spacers;
• patterning the patternable material resulting in a patterned layer defining openings to the conductive surface;
• forming a material on the conductive surface through the defined openings;
• and
• removing the patterned layer.

A structure used in the production of a face plate of a display, the structure comprising:

• a substrate assembly having a conductive surface at a first side thereof;
• one or more projections extending from the first side of the substrate assembly;
• and
• electrophoretically deposited and patternable material on the conductive surface and adjacent the projections.

A structure used in the production of a display, the structure comprising:

• a substrate assembly including a conductive surface;
• one or more nonconductive regions formed on the conductive surface, wherein the one or more nonconductive regions have a thickness less than about 15 microns;
• and
• electrophoretically deposited patternable material formed over the conductive surface and the one or more nonconductive regions.

A method for use in the production of a display, the method comprising:

• providing a substrate assembly including a conductive surface;
• providing one or more nonconductive regions on the conductive surface, wherein the one or more nonconductive regions have a thickness less than about 15 microns;
• electrophoretically depositing a patternable material mixed with a light emitting material on the conductive surface and the one or more nonconductive regions;
• and
• patterning the patternable material mixed with light emitting material resulting in a patterned layer corresponding to one or more light emitting elements on the conductive surface.

A method for use in the production of a color display to deposit a pattern of light emitting elements capable of emitting light of at least two different colors when excited, the display including a face plate having a plurality of spacers extending from one side thereof for use in spacing the face plate from a base plate of the color display, the method comprising:

• providing a face plate substrate assembly from which the plurality of spacers extend, a conductive surface of the substrate assembly is exposed in regions between the plurality of spacers;
• and
• using an electrophoretically deposited patternable material to form the pattern of light emitting elements on the conductive surface, wherein using electrophoretically deposited patternable material to form the pattern of light emitting elements on the conductive surface includes:
• electrophoretically depositing a patternable layer of a mixture of a patternable material and a first color light emitting material over the conductive surface and adjacent the spacers;
• patterning the patternable layer to form regions of the patternable layer corresponding to one or more light emitting elements of a first color;
• removing the patternable material from the regions of the patternable layer to form the one or more light emitting elements of the first color on the conductive surface;
• and
• repeating the electrophoretically depositing, patterning, and removing steps using mixtures of patternable material and additional color light emitting material to form one or more light emitting elements of one or more additional colors on the conductive surface.

A method for use in the production of a display, the method comprising:

• providing a substrate assembly including a conductive surface;
• providing one or more nonconductive regions formed on the conductive surface, wherein the one or more nonconductive regions have a thickness less than about 15 microns;
• forming a layer of patternable material by electrophoresis over the conductive surface and the one or more nonconductive regions;
• and
• patterning the layer of patternable material by tackifying one or more surface regions of the layer of patternable material for use in formation of light emitting elements on the conductive surface.

A method for use in the production of a color display to deposit a pattern of light emitting elements capable of emitting light of at least two different colors when excited, the display including a face plate having a plurality of spacers extending from one side thereof for use in spacing the face plate from a base plate of the color display, the method comprising:

• providing a face plate substrate assembly from which the plurality of spacers extend, a conductive surface of the substrate assembly is exposed in regions between the plurality of spacers;
• and
• using an electrophoretically deposited patternable material to form the pattern of light emitting elements on the conductive surface, wherein using electrophoretically deposited patternable material to form the pattern of light emitting elements on the conductive surface includes:
• electrophoretically depositing a layer of patternable material on at least the conductive surface;
• tackifying one or more regions of the layer of patternable material corresponding to first color light emitting elements;
• forming light emitting material of a first color on the tackified regions of the patternable material;
• repeatedly tackifying the patternable material and forming light emitting elements to form one or more light emitting elements of one or more additional colors on the conductive surface;
• and
• removing the layer of patternable material resulting in the formation of a plurality of light emitting elements of a plurality of colors on the conductive surface.

A method for use in producing a display having a face plate and a base plate, the face plate having one or more spacers extending from one side thereof for spacing the face plate from the base plate in the display, the method comprising:

• electrophoretically depositing a patternable material over a conductive surface of the face plate in regions adjacent one or more of the spacers;
• patterning the patternable material resulting in a patterned layer defining openings to the conductive surface;
• forming a light emitting material on the conductive surface through the defined openings;
• and
• removing the patterned layer.

A method for use in the production of a color display to deposit a pattern of light emitting elements capable of emitting light of at least two different colors when excited, the display including a face plate having a plurality of spacers extending from one side thereof for use in spacing the face plate from a base plate of the color display, the method comprising:

• providing a face plate substrate assembly from which the plurality of spacers extend, a conductive surface of the substrate assembly is exposed in regions between the plurality of spacers;
• and
• using an electrophoretically deposited patternable material to form the pattern of light emitting elements on the conductive surface, wherein using electrophoretically deposited patternable material to form the pattern of light emitting elements on the conductive surface includes:
• electrophoretically depositing and patterning a layer of patternable material resulting in a patterned layer defining first openings to the conductive surface for use in the formation of one or more first color light emitting elements on the conductive surface;
• forming the one or more first color light emitting elements on the conductive surface through the first openings;
• removing the patterned layer;
• and
• repeating the electrophoretically depositing, patterning, forming and removing steps to form one or more additional light emitting elements of one or more additional colors on the conductive surface.