| CPC G02B 5/207 (2013.01) [C01G 9/08 (2013.01); C01G 15/006 (2013.01); C09K 11/70 (2013.01); C09K 11/883 (2013.01); G02F 1/01791 (2021.01); B82Y 20/00 (2013.01); B82Y 30/00 (2013.01); B82Y 40/00 (2013.01); C01P 2004/64 (2013.01); C01P 2004/80 (2013.01); C01P 2006/60 (2013.01); G02B 5/206 (2013.01); G02B 2207/101 (2013.01)] | 17 Claims |
|
1. A color filter comprising
a first pixel that is configured to emit a green light, wherein the first pixel comprises a light emitting layer,
wherein the light emitting layer comprises a first layer comprising first quantum dots, and a second layer comprising second quantum dots different from the first quantum dots,
wherein the second layer is disposed on the first layer,
wherein a quantum yield of the first quantum dots is greater than a quantum yield of the second quantum dots,
wherein an absorption of blue light of the second quantum dots is greater than an absorption of the blue light of the first quantum dots,
wherein an average size of the quantum dots is greater than or equal to about 5 nanometers and less than or equal to about 10 nanometers, and an average size of the second quantum dots is greater than or equal to about 2 nanometers and less than or equal to about 8 nanometers,
wherein the first quantum dots and the second quantum dots exhibit a maximum luminescent peak in a range of a green light wavelength,
wherein the first quantum dots comprise a semiconductor nanocrystal core comprising indium, phosphorus, and optionally zinc, a first semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core of the first quantum dots, the first semiconductor nanocrystal shell of the first quantum dots comprising zinc and selenium, and a second semiconductor nanocrystal shell disposed on the first semiconductor nanocrystal shell of the first quantum dots, the second semiconductor nanocrystal shell of the first quantum dots comprising zinc and sulfur, and
wherein the second quantum dots comprise a semiconductor nanocrystal core comprising indium, phosphorus, and optionally zinc, a first semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core of the second quantum dots, the first semiconductor nanocrystal shell of the second quantum dots comprising zinc, selenium, and sulfur, and a second semiconductor nanocrystal shell disposed on the first semiconductor nanocrystal shell of the second quantum dots, the second semiconductor nanocrystal shell of the second quantum dots comprising zinc and sulfur.
|