公开(公告)号：WO2022034526A1

公开(公告)日：2022-02-17

申请号：PCT/IB2021/057419

申请日：2021-08-11

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： TING, Chun-Yi ,  LIN, Chiu-Hsing ,  CHOU, Juo-Han ,  CHUN-LUNG, Chen ,  TOYOOKA, Kazuhiko ,  LU, Yu Hsin

IPC: G02B5/02 ,  G02B5/18 ,  G02F1/1347

Abstract: An article (100) for a display device includes a diffraction grating film (102), a first optically clear adhesive layer (120), and a second optically clear adhesive layer (130). The diffraction grating film includes a base layer (104) and a plurality of microstructures (106) projecting from the base layer. The base layer defines a non- structured surface of the diffraction grating film and the plurality of microstructures define a structured surface of the diffraction grating film opposite to the non-structured surface. The first optically clear adhesive layer is disposed on the structured surface of the diffraction grating film. The second optically clear adhesive layer is disposed on the non-structured surface of the diffraction grating film.

公开(公告)号：WO2023007303A1

公开(公告)日：2023-02-02

申请号：PCT/IB2022/056590

申请日：2022-07-18

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： LU, Yu Hsin ,  LIN, Chiu-Hsing ,  FABICK, Ryan T. ,  YAMAMURO, Masaki

IPC: G09F9/00

Abstract: An optical film includes a plurality of polymeric layers, such that a transmittance of the polymeric layers versus wavelength includes: a left band edge separating a wavelength range where the polymeric layers has a transmittance of greater than about 60% from a wavelength range where the polymeric layers has a reflectance of greater than about 80%; and a mid-wavelength corresponding to a transmittance of about 50% along the left band edge. A display system includes a light converting film having green and red emission spectra including respective green and red emission peaks with respective green and red full width at half maxima (FWHMs); and includes the optical film disposed on the light converting film. For each of the FWHMs, the mid-wavelength is less than or equal to a shortest wavelength of the FWHM or greater than the shortest wavelength by no more than about 30% of the FWHM.