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US 12,618,005 B2Granted
Light emitting element and manufacturing method thereof
AssigneeSamsung Display Co., Ltd.
InventorsSang Hee Yu, Hoi-Lim Kim, Jae Hong Park, Gyu Bong Kim, Seung Uk Noh, Ju Yon Lee
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Abstract
A light emitting element according to an embodiment includes a first electrode, a second electrode overlapping the first electrode, an emission layer disposed between the first electrode and the second electrode, and an electron transport region disposed between the emission layer and the second electrode, wherein the electron transport region includes a thermal acid generator (TAG). A method of manufacturing a light emitting element is also provided.
Claims16
A light emitting element comprising:
- a first electrode;
- a second electrode overlapping the first electrode;
- an emission layer disposed between the first electrode and the second electrode;
- and
- an electron transport region disposed between the emission layer and the second electrode, wherein the electron transport region comprises a thermal acid generator (TAG) and inorganic nanoparticles,
- wherein the TAG generates H+ upon thermal treatment, and wherein the H+ is adsorbed on the inorganic nanoparticles, and
- wherein the inorganic nanoparticles comprise zinc oxide (ZnO).
4 more elements
A method of manufacturing a light emitting element, comprising:
- forming a first electrode;
- forming an emission layer on the first electrode;
- forming an electron transport region on the emission layer;
- and
- forming a second electrode on the electron transport region, wherein
- the forming of the electron transport region comprises:
- applying a solution including inorganic nanoparticles and a thermal acid generator (TAG);
- and
- curing the solution,
- wherein the TAG generates H+ upon thermal treatment, and wherein the H+ is adsorbed on the inorganic nanoparticles,
- wherein in the curing of the solution, the TAG generates H+,
- wherein the H+ generated in the curing separates a branch part adsorbed on the inorganic nanoparticle.
9 more elements
Dependencies are inferred from the claim text.