CN-122002997-A - Display device and electronic device

Abstract

The present disclosure relates to a display device and an electronic device. The display device includes a substrate, and a first light emitting diode unit, a second light emitting diode unit, and a third light emitting diode unit disposed over the substrate, and the first light emitting diode unit includes at least one first light emitting diode that emits first color light, the second light emitting diode unit includes at least one second light emitting diode that emits second color light different from the first color light, the third light emitting diode unit includes at least one third light emitting diode that emits third color light different from the first color light and the second color light, and a planar size of the at least one third light emitting diode is greater than a planar size of the at least one first light emitting diode and a planar size of the at least one second light emitting diode.

Inventors

• LI CONGYUAN
• Kang Zaixiong
• ZHANG ZHENHE

Assignees

• 三星显示有限公司

Dates

Publication Date

20260508

Application Date

20250916

Priority Date

20241101

Claims (20)

1. 1. A display device, wherein the display device comprises: A substrate, and A first light emitting diode unit, a second light emitting diode unit and a third light emitting diode unit disposed over the substrate, wherein, The first light emitting diode unit comprises at least one first light emitting diode emitting a first color light, The second light emitting diode unit includes at least one second light emitting diode that emits a second color light different from the first color light, The third light emitting diode unit includes at least one third light emitting diode that emits a third color light different from the first color light and the second color light, and The planar dimensions of the at least one third light emitting diode are greater than the planar dimensions of the at least one first light emitting diode and the planar dimensions of the at least one second light emitting diode.
2. 2. The display device of claim 1, wherein a shortest width of the at least one third light emitting diode in a plan view is greater than a shortest width of the at least one first light emitting diode in the plan view and a shortest width of the at least one second light emitting diode in the plan view.
3. 3. The display device according to claim 2, wherein, The shortest width of the at least one third light emitting diode is greater than or equal to a reference dimension, and At least one of the shortest width of the at least one first light emitting diode and the shortest width of the at least one second light emitting diode is less than the reference dimension.
4. 4. A display device according to claim 3, wherein the reference dimension is in the range of 3 to 5 microns.
5. 5. The display device of claim 4, wherein the shortest width of the at least one third light emitting diode is less than 10 microns.
6. 6. The display device according to claim 5, wherein at least one of the number of the at least one first light emitting diodes included in the first light emitting diode unit and the number of the at least one second light emitting diodes included in the second light emitting diode unit is greater than the number of the at least one third light emitting diodes included in the third light emitting diode unit.
7. 7. The display device according to claim 1, wherein the display device further comprises: and a driving circuit portion disposed between each of the first, second, and third light emitting diode units and the substrate.
8. 8. The display device according to claim 7, wherein the display device further comprises: A pixel circuit portion electrically connected to at least one first electrode among the at least one first light emitting diode, the at least one second light emitting diode, and the at least one third light emitting diode, Wherein the pixel circuit portion includes a plurality of transistors.
9. 9. The display device according to claim 8, wherein the driving circuit portion includes the pixel circuit portion.
10. 10. The display device according to claim 8, wherein the pixel circuit portion is provided between the substrate and the driving circuit portion.
11. 11. The display device of claim 1, wherein a planar shape of at least one of the at least one first light emitting diode, the at least one second light emitting diode, and the at least one third light emitting diode is circular or rectangular.
12. 12. A display device, wherein the display device comprises: A substrate, and A first light emitting diode unit and a second light emitting diode unit disposed over the substrate, wherein, The first light emitting diode unit includes at least one green light emitting diode, The second light emitting diode unit comprises at least one blue light emitting diode, The at least one second light emitting diode has a shortest width in plan view of 3 micrometers or more, and The shortest width of the at least one first light emitting diode in the plan view is less than 3 microns.
13. 13. The display device of claim 12, wherein the shortest width of the at least one first light emitting diode is less than 10 microns.
14. 14. The display device according to claim 13, wherein the number of the at least one first light emitting diode included in the first light emitting diode unit is greater than the number of the at least one second light emitting diode included in the second light emitting diode unit.
15. 15. The display device according to claim 12, wherein the display device further comprises: and a driving circuit portion disposed between each of the first and second light emitting diode units and the substrate.
16. 16. The display device according to claim 15, wherein the display device further comprises: A pixel circuit portion electrically connected to at least one first electrode of the at least one first light emitting diode and the at least one second light emitting diode, Wherein the pixel circuit portion includes a plurality of transistors.
17. 17. The display device according to claim 16, wherein the driving circuit portion includes the pixel circuit portion.
18. 18. The display device according to claim 16, wherein the pixel circuit portion is provided between the substrate and the driving circuit portion.
19. 19. An electronic device, wherein the electronic device comprises: A substrate, and A first light emitting diode unit, a second light emitting diode unit and a third light emitting diode unit disposed over the substrate, wherein, The first light emitting diode unit comprises at least one first light emitting diode emitting a first color light, The second light emitting diode unit includes at least one second light emitting diode that emits a second color light different from the first color light, The third light emitting diode unit includes at least one third light emitting diode that emits a third color light different from the first color light and the second color light, and The planar dimensions of the at least one third light emitting diode are greater than the planar dimensions of the at least one first light emitting diode and the planar dimensions of the at least one second light emitting diode.
20. 20. The electronic device of claim 19, wherein a shortest width of the at least one third light emitting diode in plan view is greater than a shortest width of the at least one first light emitting diode in plan view and a shortest width of the at least one second light emitting diode in plan view.

Description

Display device and electronic device Technical Field Embodiments relate to a display device and an electronic device. Background The display device includes pixels as units for displaying images. Each pixel may include a pixel circuit portion and a light emitting portion connected to the pixel circuit portion. The light emitting portion may be implemented in various forms, and for example, the light emitting portion may include a light emitting diode as a light emitting element. Light emitting diodes may have various sizes, and recently, micro-or nano-scale ultra-small light emitting diodes using II-VI compound semiconductor materials or III-V compound semiconductor materials have been developed. The light emitting diode may be directly formed on a substrate included in the display device, or may be mounted on the substrate in the form of a chip. The light emitting diode may emit light of one of several basic colors. The pixel circuit portion for driving the light emitting diode may be integrated on the substrate or may be included in the light emitting diode chip. The pixel circuit portion may include a plurality of transistors and at least one capacitor. The pixel circuit section may control the amount of driving current transmitted to the light emitting diodes such that each light emitting diode emits light of a desired brightness. Disclosure of Invention Embodiments are directed to providing a display device and an electronic device capable of improving both luminance efficiency and reliability of a light emitting diode. However, the embodiments are not limited to the embodiments set forth herein. The above and other embodiments will become more apparent to those of ordinary skill in the art to which the present disclosure pertains by referencing the detailed description of the present disclosure given below. The display device according to the embodiment includes a substrate, and a first light emitting diode unit, a second light emitting diode unit, and a third light emitting diode unit disposed over the substrate, and the first light emitting diode unit includes at least one first light emitting diode that emits first color light, the second light emitting diode unit includes at least one second light emitting diode that emits second color light different from the first color light, the third light emitting diode unit includes at least one third light emitting diode that emits third color light different from the first color light and the second color light, and a planar size of the at least one third light emitting diode is greater than a planar size of the at least one first light emitting diode and a planar size of the at least one second light emitting diode. The shortest width in plan view of the at least one third light emitting diode may be greater than the shortest width in plan view of the at least one first light emitting diode and the shortest width in plan view of the at least one second light emitting diode. The shortest width of the at least one third light emitting diode may be greater than or equal to the reference dimension, and at least one of the shortest width of the at least one first light emitting diode and the shortest width of the at least one second light emitting diode may be less than the reference dimension. The reference dimension may be in the range of about 3 microns to about 5 microns. The shortest width of the at least one third light emitting diode may be less than about 10 microns. At least one of the number of at least one first light emitting diode included in the first light emitting diode unit and the number of at least one second light emitting diode included in the second light emitting diode unit may be greater than the number of at least one third light emitting diode included in the third light emitting diode unit. The display device may further include a driving circuit portion disposed between each of the first, second, and third light emitting diode units and the substrate. The display device may further include a pixel circuit portion electrically connected to at least one first electrode of the at least one first light emitting diode, the at least one second light emitting diode, and the at least one third light emitting diode, and the pixel circuit portion may include a plurality of transistors. The driving circuit portion may include a pixel circuit portion. The pixel circuit portion may be disposed between the substrate and the driving circuit portion. The planar shape of at least one of the at least one first light emitting diode, the at least one second light emitting diode, and the at least one third light emitting diode may be circular or rectangular. The display device according to another embodiment includes a substrate, and a first light emitting diode unit and a second light emitting diode unit disposed over the substrate, and the first light emitting diode unit includes at least one green light emitting diode, the second light emitting diod