Methods of making displays
First Claim
Patent Images
1. A method of preparing a display, the method comprising:
- patterning a set of zinc oxide channel thin film transistor row and column drivers on a display substrate;
patterning a set of zinc oxide channel pixel thin film transistors on the display substrate, the pixel thin film transistors being in electrical contact with the thin film transistor row and column drivers; and
forming a set of organic light emitting diodes on the display substrate, each organic light emitting diode comprising a first electrode, a second electrode, and a light-emitting material positioned between the first electrode and the second electrode, wherein the forming of at least one organic light emitting diode comprises providing a first electrode in electrical contact with at least one pixel thin film transistor;
preparing a first donor sheet comprising a first donor substrate and a first thermal transfer layer comprising a first light-emitting material;
transferring the first thermal transfer layer from the first donor sheet, wherein the first thermal transfer layer is transferred adjacent to the first electrode; and
depositing a second electrode, wherein the first thermal transfer layer is positioned between the first electrode and the second electrode.
1 Assignment
0 Petitions
Accused Products
Abstract
Methods of forming displays are described. The displays have zinc oxide row and column drivers integrated onto the same display substrate as zinc oxide pixel transistors and organic light emitting diodes. The organic light emitting diodes are prepared, at least in part, using a thermal transfer process from a donor sheet.
3893 Citations
21 Claims
-
1. A method of preparing a display, the method comprising:
-
patterning a set of zinc oxide channel thin film transistor row and column drivers on a display substrate;
patterning a set of zinc oxide channel pixel thin film transistors on the display substrate, the pixel thin film transistors being in electrical contact with the thin film transistor row and column drivers; and
forming a set of organic light emitting diodes on the display substrate, each organic light emitting diode comprising a first electrode, a second electrode, and a light-emitting material positioned between the first electrode and the second electrode, wherein the forming of at least one organic light emitting diode comprises providing a first electrode in electrical contact with at least one pixel thin film transistor;
preparing a first donor sheet comprising a first donor substrate and a first thermal transfer layer comprising a first light-emitting material;
transferring the first thermal transfer layer from the first donor sheet, wherein the first thermal transfer layer is transferred adjacent to the first electrode; and
depositing a second electrode, wherein the first thermal transfer layer is positioned between the first electrode and the second electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 13, 14, 15, 16, 17, 18, 19, 20, 21)
-
- 11. The method of 9, wherein transferring the first thermal transfer layer comprises a first transfer to a first region between the first and second electrodes and transferring the second transfer layer comprises a second transfer to a second region between the first and second electrodes, wherein the first region does not overlap with the second region.
Specification