Back to results
US 2019/0196270 A1Published application
Display device
AssigneeSakai Display Products Corporation
InventorsMAYUMI HORI, KENICHI IWAMOTO
Life of this patent
Estimating the term…
Abstract
Provided is a display apparatus in which the occurrence of color nonuniformity can be prevented or reduced. A display apparatus in which light from a light source unit is transmitted through a fluorescent film before reaching a display panel, includes an optical path changing member provided between the light source unit and the fluorescent film and for changing optical path lengths within the fluorescent film of the light rays entering the fluorescent film from an incident surface of the fluorescent film.
Claims8
-6. (canceled)
A display apparatus, comprising:
- a display panel;
- a backlight device having a plurality of LEDs;
- a fluorescent film having an incident surface and a light-emitting surface, the fluorescent film being provided between the backlight device and the display panel such that the light-emitting surface faces the display panel;
- a diffusion member provided between the backlight device and the fluorescent film;
- and
- an optical path changing member provided between the diffusion member and the fluorescent film, wherein
- the optical path changing member is configured to receive light rays emitted from the backlight device and diffused by the diffusion member and to change optical paths of light rays travelling toward the incident surface of the fluorescent film so as to change optical path lengths of light rays traveling within the fluorescent film.
4 more elements
Dependencies are inferred from the claim text.