Title:
DIFFUSION MEMBER, LAMINATE, SET OF DIFFUSION MEMBERS, LED BACKLIGHT, AND DISPLAY DEVICE
Document Type and Number:
Japanese Patent JP2022141711
Kind Code:
A
Abstract:
To provide a diffusion member which can be reduced in thickness while improving in-plane brightness uniformity, and to provide a laminate, a set of diffusion members, an LED backlight, and a display device.SOLUTION: A diffusion member is provided, consisting of a transmission diffractive grating or a microlens array, and a dielectric multilayer film laminated together, the dielectric multilayer film being configured to have a specular reflectance of 80% or greater and less than 100% for red light incident on a surface thereof on a side of the transmission diffractive grating or the microlens array at an incident angle of 0°.SELECTED DRAWING: Figure 1
Inventors:
Mari Nishikawa
Seiichi Yoshimi
Keita Aihara
Seiichi Yoshimi
Keita Aihara
Application Number:
JP2022106871A
Publication Date:
September 29, 2022
Filing Date:
July 01, 2022
Export Citation:
Assignee:
Dai Nippon Printing Co.,Ltd.
International Classes:
G02B5/00; F21S2/00; F21V3/00; F21V3/02; F21V3/04; F21V5/00; F21V5/04; F21V9/14; G02B3/00; G02B5/02; G02B5/08; G02B5/18; G02B5/26; G02B5/28
Attorney, Agent or Firm:
Akihiko Yamashita
Tatsuto Kishimoto
Tatsuto Kishimoto
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