To improve illumination uniformity without significantly increasing a depth of a backlight hollow space.
An illumination system 10 includes a backlight housing 19, a plurality of light valves 11 coupled to the backlight housing 19, and a plurality of light sources arranged in the backlight housing 19 and optically coupled to the light valves 11. The illumination system 10 may further include a light-scattering substrate optically coupled between the plurality of light sources 25 and the light valves 11, and a plurality of light modulating dots 32 patterned on the substrate 12 to modulate transmitted intensity of light from the plurality of light sources 25 to achieve increased luminance uniformity by decreasing banding caused by the separated light sources. The light modulating dots 32 may include reflective dots, transmissive dots, absorptive dots, or a combination thereof.
| JP4721160 | Planar lighting device |
| WO/2013/175685 | SOCKET AND LIGHTING FIXTURE EMPLOYING SAID SOCKET |
| WO/2019/044374 | LIGHT SOURCE DEVICE AND LIGHT PROJECTION DEVICE |
MEYERS MARK MARSHALL
LORRAINE PETER WILLIAM
| JPH06301034A | 1994-10-28 | |||
| JP2003279979A | 2003-10-02 | |||
| JP2005117023A | 2005-04-28 | |||
| JP2000321570A | 2000-11-24 | |||
| JPH03236958A | 1991-10-22 | |||
| JPH08240719A | 1996-09-17 | |||
| JPH04323687A | 1992-11-12 | |||
| JP2004045645A | 2004-02-12 |
Hirokazu Ogura
Toshihisa Kurokawa
Arakawa Satoshi