Display device and method of manufacturing the same
AssigneeSamsung Display Co., Ltd.
InventorSoo Guy Rho
Life of this patent
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Abstract
A display device may include a first electrode on a substrate, a bank covering edges of the first electrode, a plurality of light-emitting elements on the first electrode and aligned vertically with respect to the first electrode, a conductive polymer layer on the first electrode to fill gaps between the plurality of light-emitting elements, an insulating layer on the conductive polymer layer to fill the gaps between the plurality of light-emitting elements, and a second electrode on the bank, the insulating layer, and the plurality of light-emitting elements.
Claims20
A display device comprising:
- a first electrode on a substrate;
- a bank covering edges of the first electrode;
- a plurality of light-emitting elements on the first electrode and aligned vertically with respect to the first electrode;
- a conductive polymer layer on the first electrode to fill gaps between adjacent ones of the plurality of light-emitting elements;
- an insulating layer on the conductive polymer layer to fill the gaps between adjacent ones of the plurality of light-emitting elements;
- and
- a second electrode on the bank, the insulating layer, and the plurality of light-emitting elements.
A method of manufacturing a display device, the method comprising:
- growing a plurality of light-emitting elements on a base substrate;
- attaching a polymer film comprising porogen on the plurality of light-emitting elements;
- forming a polymer layer, which surrounds first end portions of the plurality of light-emitting elements, by heat-treating the base substrate to melt the polymer film;
- separating the plurality of light-emitting elements and mixing the plurality of light-emitting elements in light-emitting element ink comprising a conductive polymer;
- preparing a target substrate, comprising a first electrode and a bank, and applying the light-emitting element ink on the first electrode;
- forming a conductive polymer layer on the first electrode by drying the light-emitting element ink, and aligning the plurality of light-emitting elements vertically with respect to the first electrode;
- forming an insulating layer on the conductive polymer layer;
- removing the polymer layer from the plurality of light-emitting elements;
- and
- forming a second electrode on the plurality of light-emitting elements.
A method of manufacturing a display device, the method comprising:
- growing a plurality of light-emitting elements on a base substrate;
- attaching a polymer film comprising porogen on the plurality of light-emitting elements;
- forming a polymer layer, which surrounds first end portions of the plurality of light-emitting elements, by heat-treating the base substrate to melt the polymer film;
- separating the plurality of light-emitting elements and mixing the plurality of light-emitting elements in light-emitting element ink comprising a conductive polymer;
- preparing a substrate comprising a first electrode and a bank;
- forming a reflective material layer on the first electrode and the bank;
- applying the light-emitting element ink on the reflective material layer;
- aligning a conductive polymer layer and the plurality of light-emitting elements on the reflective material layer by drying the light-emitting element ink;
- etching away the polymer layer from the plurality of light-emitting elements, and forming a reflective electrode by etching the reflective material layer;
- forming an insulating layer on the conductive polymer layer and the reflective electrode;
- and
- forming a second electrode on the plurality of light-emitting elements.
Dependencies are inferred from the claim text.