公开(公告)号：US12022684B2

公开(公告)日：2024-06-25

申请号：US17275330

申请日：2018-09-14

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Fuguo Xu ,  Timothy J. Nevitt ,  Adam D. Haag ,  Brianna N. Nieson ,  Matthew B. Johnson ,  Martin E. Denker

IPC: H10K50/86 ,  G02B5/30 ,  H10K59/35

CPC classification number: H10K50/86 ,  G02B5/3041 ,  H10K59/351

Abstract: A display (1000) including a display panel (130) and a polarizer (110) disposed to receive a light (150) output of the display panel (130) is described. The polarizer (150) may be a reflective polarizer (110) or a circular polarizer (100) incorporating a reflective polarizer (110). The display panel (130) includes a plurality of pixels and each pixel includes a plurality of subpixels. The reflective polarizer (110) has a first reflection band, wherein at normal incidence, the first reflection band has a long wavelength band edge wavelength between peak emission wavelengths of two subpixels in the plurality of subpixels. The reflective polarizer (110) may be disposed between an absorbing polarizer (106) and a retarder (108) in a circular polarizer (100). The reflective polarizer (110) may have substantially non-overlapping first, second, and third reflection bands.

公开(公告)号：US20220299692A1

公开(公告)日：2022-09-22

申请号：US17636394

申请日：2019-09-27

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Fuguo Xu ,  Adam D. Haag ,  Martin E. Denker ,  Timothy J. Nevitt

IPC: G02B5/30 ,  G02B5/26 ,  H01L27/32 ,  H01L51/52

Abstract: An optical system (200) includes an emissive display (220) and a reflective polarizer (100) disposed on the display (220). The display (220) includes a blue pixel (222b) emitting light having a peak at a wavelength λb. For substantially normally incident light: for the wavelength λb, the reflective polarizer (100) reflects at least 30% of the incident light having a first polarization state (b) and transmits at least 75% of the incident light having an orthogonal second polarization state(a); and for at least one wavelength λ1 greater than λb, λ1-λb≤50 nm, the reflective polarizer (100) transmits at least 75% of the incident light for each of the first and second polarization states. For the wavelength λb, the reflective polarizer (100) has a maximum optical transmittance Tmax for light incident at a first incident angle, and an optical transmittance Tmax/2 for light incident at a second incident angle greater than the first incident angle by less than about 50 degrees.

公开(公告)号：US11269121B2

公开(公告)日：2022-03-08

申请号：US16071544

申请日：2016-05-06

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Guanglei Du ,  John A. Wheatley ,  Yi Hang Lv ,  Anthony M. Renstrom ,  Neeraj Sharma ,  Fuguo Xu

IPC: G02B5/26 ,  G02B5/22 ,  G02B5/20 ,  G02B5/28

Abstract: A system may include one or both of a light emitter (46) and a light receiver (40), and an optical filter (10). The optical filter (10) includes a wavelength selective scattering layer (14). The wavelength selective scattering layer (14) may have a near-infrared scattering ratio of less than about 0.9. The filter (10) may have a visible reflective haze ratio of greater than about 0.5. A method may include disposing the wavelength selective scattering layer (14) adjacent one or both of the light emitter (46) and the light receiver (40). The optical filter (10) may include a wavelength selective reflective layer (16). The optical filter (10) may include a wavelength selective absorbing layer (34). An article may include the optical filter (10). The wavelength selective scattering layer (14) may have an average near-infrared scattering of less than 60%, an average visible scattering of greater than 10%, and a difference between the % total visible reflectance and the % diffuse visible reflectance of less than 20.