IP Library › Granted Patent US 12,232,392
Granted Patent B2
US 12,232,392 · App. 17/778,659 · Granted Feb 18, 2025

Display apparatus using inorganic light-emitting diode

Inventor: Jaehyuk Lee (Seoul, KR)
Assignee: LG ELECTRONICS INC.
H10K59/353
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Quick Facts
Patent No.
US 12,232,392
App. No.
17/778,659
Granted
Feb 18, 2025
Kind
B2
Abstract

The present disclosure relates to a display apparatus using, for example, a micro light emitting diode (LED), and a manufacturing method therefor, wherein the apparatus and method can be applied to a technical field related to display apparatuses. According to the present disclosure, a display apparatus using a light-emitting device comprises: a first electrode which is divided into a plurality of segments; a common second electrode located on the first electrode; and a plurality of sub pixels electrically connected between the first electrode segments and the second electrode and forming individual pixels, wherein the sub pixels may include a first sub pixel which emits light of a first color and includes an organic light-emitting device, a second sub pixel which emits light of a second color and includes an organic light-emitting device, a third sub pixel which emits light of a third color and includes an inorganic light-emitting device, and a fourth sub pixel which includes an organic light-emitting device for emitting light which is a mixture of the light of the first to third colors.

Claims (19)

1. A display device using a light-emitting element, the display device comprising:

a plurality of segmented first electrodes;

a second electrode being a common electrode disposed above the first electrodes; and

a plurality of subpixels, each of the plurality of subpixels being disposed between and electrically connected to a respective one of the first electrodes and the second electrode to constitute an individual pixel,

wherein the plurality of subpixels comprise:

a first subpixel configured to emit light of a first color and comprising an organic light-emitting diode;

a second subpixel configured to emit light of a second color and comprising an organic light-emitting diode;

a third subpixel configured to emit light of a third color and comprising an inorganic light-emitting diode; and

a fourth subpixel comprising an organic light-emitting diode configured to emit light in which the light of the first color to the light of the third color are mixed.

2. The display device of claim 1 , further comprising a conductive adhesive layer disposed on at least one side surface of the inorganic light-emitting diode.

3. The display device of claim 2 , wherein the conductive adhesive layer is white or black.

4. The display device of claim 2 , wherein the conductive adhesive layer comprises a dye of any one of the first color to the third color.

5. The display device of claim 1 , further comprising a fifth subpixel configured to emit light of the third color and comprising an organic light-emitting diode.

6. The display device of claim 1 , wherein the third color is blue.

7. The display device of claim 1 , wherein at least one of the third subpixel or the fourth subpixel has a size smaller than a size of the first subpixel or the second subpixel.

8. The display device of claim 1 , further comprising a height compensation layer configured to compensate for a height difference between the inorganic light-emitting diode and one of the organic light-emitting diodes.

9. The display device of claim 1 , wherein a thickness of the inorganic light-emitting diode in the third subpixel is greater than a thickness of the organic light-emitting diode in any one of the first subpixel, the second subpixel and the fourth subpixel.

10. The display device of claim 1 , further comprising a quantum dot layer disposed on the third sub-pixel.

11. The display device of claim 1 , wherein a combined size of the third and fourth subpixels corresponds to a size of the first subpixel or the second subpixel.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 20, 2022
From: LEE, JAEHYUK
To: LG ELECTRONICS INC.
Reel/Frame 059974/0584 →
Priority Claims (1)
KR 10-2019-0151505 · Nov 22, 2019 · national
Continuity (1)
Related Publication 20220415977A1 · Dec 29, 2022
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