Title:
表示装置
Document Type and Number:
Japanese Patent JP6848376
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a display device with which it is possible to suppress a non-video area attributable to a non-pixel area existing between pixel areas of a video source from being visually recognized.SOLUTION: An optical sheet 20 of the display device satisfies Δν≥10 where nrepresents the refractive index of a high refractive index optical layer to a line F, nrepresents the refractive index of the high refractive index optical layer to a line d, nrepresents the refractive index of the high refractive index optical layer to a line C, nrepresents the refractive index of a low refractive index optical layer to a line F, nrepresents the refractive index of the low refractive index optical layer to a line d, nrepresents the refractive index of the low refractive index optical layer to a line C, a refractive index ratio in line F is Δn=n/n, a refractive index ratio in line d is Δn=n/n, a refractive index ratio in line C is Δn=n/n, and Δνis defined as being equal to (Δn-1)/(Δn-Δn).SELECTED DRAWING: Figure 7
Inventors:
Masahiro Goto
Ryutaro Hashimoto
Hiroshi Sekiguchi
Ryutaro Hashimoto
Hiroshi Sekiguchi
Application Number:
JP2016222307A
Publication Date:
March 24, 2021
Filing Date:
November 15, 2016
Export Citation:
Assignee:
Dai Nippon Printing Co.,Ltd.
International Classes:
G02B27/02; G02B3/00; G02B5/02; G02B25/00
Domestic Patent References:
| JP2007148185A | ||||
| JP2010122390A | ||||
| JP2005169063A | ||||
| JP2013003272A | ||||
| JP8021991A |
Foreign References:
| WO2005112514A1 |
Attorney, Agent or Firm:
Masayuki Masabayashi
Tetsuo Shiba
Hayashi Ichiyoshi
Tetsuo Shiba
Hayashi Ichiyoshi