Emissive display with printed light modification structures
First Claim
1. A multi-color emissive display comprising:
- an emissions substrate comprising;
a top surface;
a plurality of wells formed in the emissions substrate top surface;
a matrix of column and row conductive traces forming a first plurality of column/row intersections, where each column/row intersection is connected to an electrical contact of a corresponding well;
a plurality of emissive elements populating the wells, each emissive element having a bottom surface;
printed light modifier structures overlying a plurality of the emissive element bottom surfaces, wherein the printed light modifier structures comprise a material selected from a group consisting of high refractive index polymer spheres, phosphors, and quantum dots (QDs).
1 Assignment
0 Petitions
Accused Products
Abstract
A multi-color emissive display is presented with printed light modifier structures. A fabrication method provides an emissive substrate with a plurality of wells formed in the emissions substrate top surface, and a plurality of emissive elements populating the wells. The method prints light modifier structures overlying the emissive elements. Some examples of light modifier material include light scattering materials, phosphors, and quantum dots. In one aspect, the emissive substrate wells have a first shape, with sidewalls and a first perimeter. Likewise, the emissive elements have the first shape, with sides and a second perimeter, less than the first perimeter. The light modifier structures fill the space between the emissive element sides and the well sidewalls with light modifier material. If the first shape is circular, the method prints the light modifier structures overlying the emissive elements in the circular shape having a first diameter defined by the well sidewalls.
162 Citations
19 Claims
-
1. A multi-color emissive display comprising:
-
an emissions substrate comprising; a top surface; a plurality of wells formed in the emissions substrate top surface; a matrix of column and row conductive traces forming a first plurality of column/row intersections, where each column/row intersection is connected to an electrical contact of a corresponding well; a plurality of emissive elements populating the wells, each emissive element having a bottom surface; printed light modifier structures overlying a plurality of the emissive element bottom surfaces, wherein the printed light modifier structures comprise a material selected from a group consisting of high refractive index polymer spheres, phosphors, and quantum dots (QDs). - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A multi-color emissive display fabrication method, the method comprising:
providing an emissive substrate comprising; a top surface, with a plurality of wells formed in the emissions substrate top surface, and a plurality of emissive elements populating the wells, each emissive element having a bottom surface with an electrical interface connected to an electrical contact on a well bottom surface; and
,printing light modifier structures overlying the emissive element bottom surfaces, wherein the light modifier structures comprise a material selected from a group consisting of high refractive index polymer spheres, phosphors, and quantum dots (QDs). - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
-
19. An emissive display comprising:
-
an emissions substrate comprising; a top surface; a plurality of wells formed in the emissions substrate top surface; a matrix of column and row conductive traces forming a first plurality of column/row intersections in the substrate, where each column/row intersection is connected to an electrical contact of a corresponding well; a plurality of emissive elements populating the wells, each emissive element having a bottom surface, a top surface overlying a well bottom surface, and a post extending from the emissive element bottom surface; printed light modifier structures overlying a plurality of the emissive element bottom surfaces.
-
Specification