US 11,659,753 B2
Wavelength control film and display device
Jisu Yoon, Paju-si (KR); JeBeom Park, Paju-si (KR); DongRyul Jung, Paju-si (KR); and Jiseok Yang, Paju-si (KR)
Assigned to LG Display Co., Ltd., Seoul (KR)
Filed by LG Display Co., Ltd., Seoul (KR)
Filed on Jul. 6, 2020, as Appl. No. 16/921,481.
Claims priority of application No. 10-2019-0096516 (KR), filed on Aug. 8, 2019.
Prior Publication US 2021/0043691 A1, Feb. 11, 2021
Int. Cl. H10K 59/38 (2023.01); H10K 50/86 (2023.01); G02B 5/22 (2006.01); H01L 27/32 (2006.01); H01L 51/52 (2006.01)
CPC H01L 27/322 (2013.01) [H01L 51/5284 (2013.01); G02B 5/22 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A display device, comprising:
a plurality of subpixels including a light emitting area and a circuit area;
a transparent substrate positioned on a path along which light from the plurality of subpixels is emitted to outside of the display device; and
a wavelength control layer disposed in at least a partial area on the transparent substrate and including a plurality of light absorption materials, each of the plurality of light absorption materials representing a light absorption spectrum with a light absorption peak wavelength, and the plurality of light absorption materials having different light absorption peak wavelengths and different transmittances at the light absorption peak wavelength.