Title:
光学部材、表示装置
Document Type and Number:
Japanese Patent JP6759618
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an optical member and a display device which can display a larger and favorable video.SOLUTION: A windscreen 1 includes: a first glass substrate 10 having the optical transparency; an optical sheet 20 which is provided on the side opposite to an observer side of the first glass substrate 10; and a second glass substrate 40 which is provided on the back surface side of the optical sheet 20 and has the optical transparency. The windscreen reflects video light L projected from a video source 2 to the observer side and transmits light G incident from the outside. The optical sheet 20 includes: a first optical shape layer 22 which has such a linear Fresnel lens shape that plural unit lenses 222 having a lens surface and a non-lens surface are arranged on a surface on the side opposite to the observer side; and a second optical shape layer 23 which is laminated on the surface on the side where the linear Fresnel lens shape of the first optical shape layer 22 is provided. At least a portion of the lens surface is provided with a reflection layer 24 for reflecting at least a portion of the incident light.SELECTED DRAWING: Figure 2
Inventors:
Morioka Yui
Hiroshi Sekiguchi
Masahiro Goto
Koichi Kinoshita
Hiroshi Sekiguchi
Masahiro Goto
Koichi Kinoshita
Application Number:
JP2016026618A
Publication Date:
September 23, 2020
Filing Date:
February 16, 2016
Export Citation:
Assignee:
Dai Nippon Printing Co.,Ltd.
International Classes:
G02B5/08; G02B3/08; G02B27/01; G03B21/60
Domestic Patent References:
| JP2014043205A | ||||
| JP3058080A |
Foreign References:
| US20090201589 |
Attorney, Agent or Firm:
Masayuki Masabayashi
Tetsuo Shiba
Hayashi Ichiyoshi
Tetsuo Shiba
Hayashi Ichiyoshi