US 12,392,944 B2
Photoluminescence device and display panel including the same
Moonjung Baek, Seoul (KR); Seon-Tae Yoon, Seoul (KR); Junghyun Kwon, Seoul (KR); Youngmin Kim, Asan-si (KR); and Haeil Park, Seoul (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Gyeonggi-Do (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Jun. 24, 2024, as Appl. No. 18/752,265.
Application 18/752,265 is a continuation of application No. 18/091,316, filed on Dec. 29, 2022, granted, now 12,044,870.
Application 18/091,316 is a continuation of application No. 16/985,153, filed on Aug. 4, 2020, granted, now 11,567,248, issued on Jan. 31, 2023.
Application 16/985,153 is a continuation of application No. 15/627,451, filed on Jun. 20, 2017, granted, now 10,739,502, issued on Aug. 11, 2020.
Claims priority of application No. 10-2016-0164548 (KR), filed on Dec. 5, 2016.
Prior Publication US 2024/0345298 A1, Oct. 17, 2024
Int. Cl. G02B 5/20 (2006.01); G02B 5/28 (2006.01); G02F 1/1335 (2006.01); G02F 1/13357 (2006.01); H10K 50/858 (2023.01); H10K 59/38 (2023.01); H10K 59/80 (2023.01)
CPC G02B 5/201 (2013.01) [G02B 5/285 (2013.01); G02F 1/133512 (2013.01); G02F 1/133514 (2013.01); G02F 1/133617 (2013.01); H10K 50/858 (2023.02); H10K 59/38 (2023.02); H10K 59/879 (2023.02); G02F 1/133521 (2021.01); G02F 2201/44 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A display panel including a main area, and an peripheral area surrounding the main area and defining an edge, the display panel comprising:
a light emitting device to generate light; and
a photoluminescence device disposed on the light emitting device, and the photoluminescence device comprising:
a plurality of color conversion patterns disposing corresponding to the main area:
a first index of refraction layer disposed on an upper surface of the plurality of color conversion patterns; and
a second index of refraction layer disposed under the plurality of color conversion patterns, and the second index of refraction layer has a refractive index lower than a refractive indexes of the plurality of color conversion patterns, and
wherein the plurality of color conversion patterns comprises:
a first color conversion pattern including first quantum dots to convert the light of the light emitting device to have a first wavelength; and
a second color conversion pattern including second quantum dots to convert the light to have a second wavelength; and wherein the first index of refraction layer and the second index of refraction layer contact each other at the peripheral area.