US 12,345,908 B2
Reflective polarizer and display system
Adam D. Haag, Woodbury, MN (US); Martin E. Denker, Vadnais Heights, MN (US); and Timothy J. Nevitt, Red Wing, MN (US)
Assigned to 3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US)
Appl. No. 17/779,413
Filed by 3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US)
PCT Filed Dec. 8, 2020, PCT No. PCT/IB2020/061650
§ 371(c)(1), (2) Date May 24, 2022,
PCT Pub. No. WO2021/124018, PCT Pub. Date Jun. 24, 2021.
Claims priority of provisional application 62/950,646, filed on Dec. 19, 2019.
Prior Publication US 2022/0413198 A1, Dec. 29, 2022
Int. Cl. G02B 5/30 (2006.01); H10K 50/86 (2023.01); H10K 59/35 (2023.01)
CPC G02B 5/3025 (2013.01) [H10K 50/865 (2023.02); H10K 59/35 (2023.02)] 20 Claims
OG exemplary drawing
 
16. A display system comprising:
a display comprising a plurality of blue, green, and red light emitting pixels;
an absorbing polarizer disposed on the display;
a retarder layer disposed between the absorbing polarizer and the display; and
a reflective polarizer disposed between the absorbing polarizer and the retarder layer, such that the display has an optical gain g0 along a first direction substantially normal to the display and an optical gain g1 along a second direction making an angle θ greater than about 60 degrees with the first direction, wherein:
g0 is greater than g1 for wavelengths corresponding to peak emissions of the blue and green light emitting pixels; and
g0 is less than g1 for wavelengths corresponding to a peak emission of the red light emitting pixels.