US 12,256,621 B2
Display panel and electronic device including the same
Tae Gon Kim, Hwaseong-si (KR); Shin Ae Jun, Seongnam-si (KR); Deukseok Chung, Yongin-si (KR); Nayoun Won, Yongin-si (KR); Sung Hun Lee, Hwaseong-si (KR); and Byoung Ki Choi, Hwaseong-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Gyeonggi-Do (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Mar. 4, 2022, as Appl. No. 17/687,451.
Claims priority of application No. 10-2021-0029749 (KR), filed on Mar. 5, 2021.
Prior Publication US 2022/0285446 A1, Sep. 8, 2022
Int. Cl. H10K 59/38 (2023.01); C09K 11/56 (2006.01); C09K 11/88 (2006.01); H10K 59/12 (2023.01); H10K 71/00 (2023.01); B82Y 20/00 (2011.01); B82Y 40/00 (2011.01)
CPC H10K 59/38 (2023.02) [C09K 11/565 (2013.01); C09K 11/883 (2013.01); H10K 59/12 (2023.02); H10K 71/00 (2023.02); B82Y 20/00 (2013.01); B82Y 40/00 (2013.01); H10K 59/1201 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A display panel, comprising
a light emitting panel; and
a color conversion panel with a surface opposite a surface of the light emitting panel,
wherein the light emitting panel is configured to emit incident light comprising a first light with a maximum emission peak wavelength in a range of greater than or equal to about 450 nm and less than or equal to about 480 nm, and a second light with a maximum emission peak wavelength in a range of greater than or equal to about 500 nm and less than or equal to about 580 nm,
wherein the color conversion panel comprises a color conversion layer comprising a color conversion region, and optionally, a partition wall defining each region of the color conversion layer, the color conversion region comprises a first region corresponding to a green pixel,
the first region comprises a first composite comprising a matrix and a plurality of luminescent nanostructures dispersed within the matrix and comprising, and
the spectral overlap of a UV-Vis absorption spectrum of the luminescent nanostructures, the maximum emission peak of the first light, and the maximum emission peak of the second light satisfies the following equation:
B/A≤about 0.6
wherein, A corresponds to an area where a UV-Vis absorption spectrum of the luminescent nanostructures overlaps with the maximum emission peak of the first light in a wavelength region of less than or equal to about 500 nm, and B corresponds to an area where the UV-Vis absorption spectrum of the luminescent nanostructures overlaps with the maximum emission peak of the second light in a wavelength region of greater than or equal to about 500 nm, and
wherein for determination of the A, a height of a first absorption peak of the UV-Vis absorption spectrum of the luminescent nanostructures and a height of the maximum emission peak of the first light are adjusted to be equal, and for determination of the B, a height of a first absorption peak of the UV-Vis absorption spectrum of the luminescent nanostructures and a height of the maximum emission peak of the second light are adjusted to be equal.