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：US20230244107A1

公开(公告)日：2023-08-03

申请号：US18102844

申请日：2023-01-30

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Yu Hsin Lu ,  Gary T. Boyd

IPC: G02F1/1335 ,  G02F1/13357

CPC classification number: G02F1/133607 ,  G02F1/133614 ,  G02F1/13362 ,  G02F1/133605 ,  G02B5/305

Abstract: A backlight to a display panel including a plurality of discrete spaced apart light sources configured to emit light and arranged two-dimensionally on a first substrate substantially reflective at least in regions between the light sources, a reflective polarizer disposed on the plurality of discrete spaced apart light sources, a first optical diffuser disposed between the reflective polarizer and the plurality of light sources and having a plurality of positive microlenses arranged in a regular two-dimensional array, and a second optical diffuser disposed between the reflective polarizer and the plurality of light sources and having a plurality of retroreflective elements arranged in a regular two-dimensional array. The second optical diffuser is configured to receive the emitted light and retroreflect the received light for incident angles less than a predetermined threshold value and transmit at least 60% of the received light for incident angles greater than the predetermined threshold value.

公开(公告)号：US11782310B2

公开(公告)日：2023-10-10

申请号：US18073813

申请日：2022-12-02

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Yu Hsin Lu ,  Gary T. Boyd ,  Matthew B. Johnson ,  Ryan T. Fabick ,  Carl A. Stover ,  Adam D. Haag

IPC: G02F1/00 ,  G02F1/13357 ,  G02B1/04 ,  G02F1/1335

CPC classification number: G02F1/133606 ,  G02B1/04 ,  G02F1/133514 ,  G02F1/133536 ,  G02F1/133603

Abstract: A display system includes a light source configured to emit light from a light exit surface, the emitted light having an emitted wavelength. An optical filter is disposed on the light exit surface of the light source. One or more light converting films are disposed between the optical filter and the light exit surface of the light source. The one or more light converting films are configured to receive the emitted light from the light source and convert at least portions of the received emitted light to blue, green, and red lights having respective blue, green and red wavelengths. For a substantially normally incident light and for at least an in-plane first polarization state, the optical filter reflects more than about 80% of the incident light having the emitted wavelength, and transmits greater than about 60% of the incident light for each of the blue, green and red wavelengths.

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.

公开(公告)号：US20230176419A1

公开(公告)日：2023-06-08

申请号：US18073813

申请日：2022-12-02

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Yu Hsin Lu ,  Gary T. Boyd ,  Matthew B. Johnson ,  Ryan T. Fabick ,  Carl A. Stover ,  Adam D. Haag

IPC: G02F1/13357 ,  G02F1/1335 ,  G02B1/04

CPC classification number: G02F1/133606 ,  G02F1/133603 ,  G02F1/133514 ,  G02F1/133536 ,  G02B1/04

Abstract: A display system includes a light source configured to emit light from a light exit surface, the emitted light having an emitted wavelength. An optical filter is disposed on the light exit surface of the light source. One or more light converting films are disposed between the optical filter and the light exit surface of the light source. The one or more light converting films are configured to receive the emitted light from the light source and convert at least portions of the received emitted light to blue, green, and red lights having respective blue, green and red wavelengths. For a substantially normally incident light and for at least an in-plane first polarization state, the optical filter reflects more than about 80% of the incident light having the emitted wavelength, and transmits greater than about 60% of the incident light for each of the blue, green and red wavelengths.