Title:
反射器の曲率により拡散器を支援する指向性バックライト表示デバイス
Document Type and Number:
Japanese Patent JP7235841
Kind Code:
B2
Abstract:
A directivity backlight display device with reflector curvature assisted diffuser includes a light source module, a reflective narrow-angle diffuser, a concave reflector, and a backlit type display panel. The light source module projects a light. The reflective narrow-angle diffuser includes a concave surface or a flat surface served as a reflecting surface. The reflecting surface is provided with a plurality of micro curved mirrors laid out in an array. The light is reflected and diffused by the reflective narrow-angle diffuser and the concave reflector to provide a uniform directional light beam. A backlit type display panel is deployed to display an image. The uniform directional light beam penetrates the backlit type display panel to provide a directional image light beam, and then projects the directional image light beam to a projection area. With this arrangement, a reflective narrow-angle diffuser with a low concave curvature is deployed to achieve a high-directivity image projection.
Inventors:
Chen tin isao
Application Number:
JP2021192112A
Publication Date:
March 08, 2023
Filing Date:
November 26, 2021
Export Citation:
Assignee:
Yuri Electronics Industry Co., Ltd.
International Classes:
F21V7/00; F21S2/00; F21V7/09; G02B5/02; G02B5/10
Domestic Patent References:
| JP2019045780A | ||||
| JP11052289A |
Foreign References:
| US20200386991 |
Attorney, Agent or Firm:
Sakuo Yamaguchi
Nobuyuki Oshima
Shinjiro Yamaguchi
Tadahiro Matsumoto
Nobuyuki Oshima
Shinjiro Yamaguchi
Tadahiro Matsumoto
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