Invention Grant
- Patent Title: Brightness homogenizing member, backlight unit, and liquid crystal display device
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Application No.: US16546885Application Date: 2019-08-21
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Publication No.: US10578921B2Publication Date: 2020-03-03
- Inventor: Yukito Saitoh , Naoyoshi Yamada
- Applicant: FUJIFILM Corporation
- Applicant Address: JP Tokyo
- Assignee: FUJIFILM Corporation
- Current Assignee: FUJIFILM Corporation
- Current Assignee Address: JP Tokyo
- Agency: Edwards Neils LLC
- Agent Jean C. Edwards, Esq.
- Priority: JP2017-034542 20170227; JP2017-155460 20170810
- Main IPC: G02F1/1335
- IPC: G02F1/1335

Abstract:
A brightness homogenizing member comprising: an incidence surface and an emission surface, the brightness homogenizing member has a lamination structure in which the brightness homogenizing member has a layer of high refractive index and a layer of low refractive index are alternately laminated in a direction perpendicular to the emission surface, each of a plurality of the layers of high refractive index includes, on a light emission surface side, a light bending portion that bends at least a portion of light proceeding in a direction intersecting to the emission surface and cause the light to proceed in a direction in which an in-plane component parallel to the emission surface increases, in a case where the lamination structure is planarly viewed from a lamination direction in the lamination structure, the light bending portions are provided in different positions between the plurality of the layers of high refractive index.
Public/Granted literature
- US20190377228A1 BRIGHTNESS HOMOGENIZING MEMBER, BACKLIGHT UNIT, AND LIQUID CRYSTAL DISPLAY DEVICE Public/Granted day:2019-12-12
Information query
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