US 12,253,700 B2
Display apparatus
Ping-Yen Chen, Hsin-Chu (TW); Wen-Chun Wang, Hsin-Chu (TW); and Chung-Yang Fang, Hsin-Chu (TW)
Assigned to Coretronic Corporation, Hsin-Chu (TW)
Filed by Coretronic Corporation, Hsin-Chu (TW)
Filed on May 13, 2022, as Appl. No. 17/743,460.
Claims priority of provisional application 63/208,510, filed on Jun. 9, 2021.
Claims priority of application No. 202111139992.2 (CN), filed on Sep. 28, 2021.
Prior Publication US 2022/0397714 A1, Dec. 15, 2022
Int. Cl. G02B 5/30 (2006.01); G02B 5/00 (2006.01); G02B 5/26 (2006.01); H10K 50/86 (2023.01); H10K 59/12 (2023.01)
CPC G02B 5/3033 (2013.01) [G02B 5/003 (2013.01); G02B 5/26 (2013.01); G02B 5/3016 (2013.01); G02B 5/3083 (2013.01); H10K 50/865 (2023.02); H10K 59/12 (2023.02)] 13 Claims
OG exemplary drawing
 
1. A display apparatus, comprising:
a circuit substrate;
a light-emitting layer, disposed on the circuit substrate and comprising a plurality of light-emitting structures, wherein the light-emitting structures are electrically connected to the circuit substrate, the light-emitting structures comprise a plurality of first light-emitting structures, and the first light-emitting structures have a first peak emission wavelength;
a polarizing layer, overlapping the light-emitting layer and located on a side of the light-emitting layer away from the circuit substrate;
a quarter waveplate, disposed between the polarizing layer and the light-emitting layer, and adapted to overlap the light-emitting layer and the polarizing layer; and
a bandpass polarizing reflective layer, disposed between the quarter waveplate and the light-emitting layer, comprising a first bandpass polarizing reflective pattern overlapping the first light-emitting structures, wherein a reflectance of the first bandpass polarizing reflective pattern for light with a wavelength in a first wavelength range is greater than 20%, the first wavelength range is the first peak emission wavelength ±10 nm, the bandpass polarizing reflective layer further comprises a second bandpass polarizing reflective pattern, the light-emitting structures further comprise a plurality of second light-emitting structures, the second light-emitting structures have a second peak emission wavelength, the first peak emission wavelength is different from the second peak emission wavelength, the second bandpass polarizing reflective pattern overlaps the second light-emitting structures, a reflectance of the second bandpass polarizing reflective pattern for light with a wavelength in a second wavelength range is greater than 20%, the second wavelength range is the second peak emission wavelength ±10 nm, and the first bandpass polarizing reflective pattern does not overlap the second bandpass polarizing reflective pattern.