公开(公告)号：US20240319422A1

公开(公告)日：2024-09-26

申请号：US18579434

申请日：2022-07-18

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Yu Hsin Lu ,  Chiu-Hsing Lin ,  Ryan T. Fabick ,  Masaki Yamamuro

IPC: G02B5/28 ,  H01L25/075

CPC classification number: G02B5/287 ,  H01L25/0753

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.

公开(公告)号：US20230288745A1

公开(公告)日：2023-09-14

申请号：US18007071

申请日：2021-08-11

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Chun-Yi Ting ,  Chiu-Hsing Lin ,  Juo-Han Chou ,  Chun-Lung Chen ,  Kazuhiko Toyooka ,  Yu Hsin Lu

IPC: G02F1/1335 ,  G02F1/13357

CPC classification number: G02F1/133504 ,  G02F1/1336 ,  G02F2202/28 ,  G02F2201/305 ,  G02F2202/36

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.