US 12,443,072 B2
Optical device and electronic device
Ryo Hatsumi, Kanagawa (JP); Hisao Ikeda, Kanagawa (JP); Daiki Nakamura, Kanagawa (JP); Takeya Hirose, Kanagawa (JP); and Yosuke Tsukamoto, Kanagawa (JP)
Assigned to Semiconductor Energy Laboratory Co., Ltd., (JP)
Appl. No. 18/840,649
Filed by Semiconductor Energy Laboratory Co., Ltd., Kanagawa-ken (JP)
PCT Filed Feb. 13, 2023, PCT No. PCT/IB2023/051258
§ 371(c)(1), (2) Date Aug. 22, 2024,
PCT Pub. No. WO2023/161759, PCT Pub. Date Aug. 31, 2023.
Claims priority of application No. 2022-027955 (JP), filed on Feb. 25, 2022.
Prior Publication US 2025/0189843 A1, Jun. 12, 2025
Int. Cl. G02F 1/1335 (2006.01); G02F 1/13363 (2006.01)
CPC G02F 1/133543 (2021.01) [G02F 1/133636 (2013.01); G02F 1/133638 (2021.01)] 10 Claims
OG exemplary drawing
 
1. An optical device comprising a first reflective polarizing plate, a first lens, an optical rotator, a retardation plate, a second reflective polarizing plate, and a second lens,
wherein the first reflective polarizing plate, the first lens, the optical rotator, the second reflective polarizing plate, and the second lens are placed in this order and overlap with each other, and
wherein the second reflective polarizing plate reflects one of right circularly polarized light and left circularly polarized light in a wavelength range of blue light to red light and transmits the other of the right circularly polarized light and the left circularly polarized light.