US 12,446,373 B2
Display panel and production method thereof
Shang Hyeun Park, Yongin-si (KR); Deukseok Chung, Yongin-si (KR); Tae Gon Kim, Hwaseong-si (KR); Min Jong Bae, Yongin-si (KR); and Shin Ae Jun, Seongnam-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Gyeonggi-Do (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Nov. 27, 2023, as Appl. No. 18/519,534.
Application 18/519,534 is a continuation of application No. 17/523,162, filed on Nov. 10, 2021, granted, now 11,870,018.
Claims priority of application No. 10-2020-0151380 (KR), filed on Nov. 12, 2020; and application No. 10-2021-0154082 (KR), filed on Nov. 10, 2021.
Prior Publication US 2024/0105885 A1, Mar. 28, 2024
Int. Cl. H10H 20/851 (2025.01); H01L 25/16 (2023.01); H10H 20/01 (2025.01); H10H 20/80 (2025.01)
CPC H10H 20/8514 (2025.01) [H01L 25/167 (2013.01); H10H 20/0361 (2025.01); H10H 20/8513 (2025.01); H10H 20/882 (2025.01)] 21 Claims
OG exemplary drawing
 
1. A display panel, comprising
a light emitting element,
a color conversion region disposed on the light emitting element,
wherein the light emitting element is configured to provide the color conversion region with incident light, wherein the color conversion region includes a wavelength conversion structure comprising a partitioned base structure including adjacent sidewalls that are configured to provide an open top face area, and a quantum dot composite,
wherein the quantum dot composite is disposed in a volumetric space defined by a height H of the adjacent sidewalls and a bottom surface of the partitioned base structure, and the quantum dot composite comprises a matrix and a plurality of quantum dots dispersed in the matrix,
wherein a width W of the volumetric space is less than or equal to about 80 micrometers,
wherein in the quantum dot composite, an amount of the quantum dots is greater than or equal to about 10 weight percent and less than or equal to about 30 weight percent, based on a total weight of the quantum dot composite, and
wherein the quantum dot composite includes a surface adjacent to the open top face area and includes a gap distance A1, which is a maximum distance between the open top face area and the adjacent surface of the quantum dot composite, and the quantum dot composite satisfies the following equation:
0.001≤A1/H≤0.3
wherein
H: the height of the sidewall,
A1: the gap distance.