US 11,912,913 B2
Quantum dot-polymer composite pattern, production method thereof, and electronic device including the same
Shang Hyeun Park, Yongin-si (KR); Tae Gon Kim, Hwaseong-si (KR); and Shin Ae Jun, Seongnam-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Gyeonggi-Do (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Mar. 27, 2023, as Appl. No. 18/190,303.
Application 18/190,303 is a continuation of application No. 16/881,697, filed on May 22, 2020, granted, now 11,613,692.
Claims priority of application No. 10-2019-0061519 (KR), filed on May 24, 2019.
Prior Publication US 2023/0303915 A1, Sep. 28, 2023
Int. Cl. C09K 11/02 (2006.01); G03F 7/20 (2006.01); G03F 7/32 (2006.01); G03F 7/38 (2006.01); C08F 212/08 (2006.01); C08F 220/06 (2006.01); C08F 220/28 (2006.01); C08K 5/37 (2006.01); C08K 3/22 (2006.01); C08F 220/18 (2006.01); B82Y 20/00 (2011.01); B82Y 40/00 (2011.01)
CPC C09K 11/02 (2013.01) [C08F 212/08 (2013.01); C08F 220/06 (2013.01); C08F 220/1807 (2020.02); C08F 220/281 (2020.02); C08K 3/22 (2013.01); C08K 5/37 (2013.01); G03F 7/2002 (2013.01); G03F 7/32 (2013.01); G03F 7/38 (2013.01); B82Y 20/00 (2013.01); B82Y 40/00 (2013.01); C08K 2003/2241 (2013.01)] 20 Claims
 
1. A quantum dot-polymer composite pattern, comprising
a section configured to emit light of a predetermined wavelength,
wherein the quantum dot-polymer composite comprises a matrix comprising a polymer, and a plurality of cadmium-free quantum dots dispersed in the matrix,
wherein the quantum dot-polymer composite has a light absorption rate of greater than or equal to about 89% at wavelength of 450 nanometers,
wherein the quantum dot-polymer composite further comprises metal oxide fine particles dispersed in the matrix, and
wherein in the quantum dot-polymer composite, an amount of the quantum dots is greater than or equal to about 40 weight percent and less than or equal to about 80 weight percent, and an amount of the metal oxide fine particles is greater than or equal to about 4 weight percent and less than or equal to about 25 weight percent, based on a total weight of the quantum dot-polymer composite.