METHOD FOR ILLUMINATING A DISPLAY USING A SECONDARY OPTICAL ELEMENT AND A LIGHT-DIFFUSING SUBSTRATE, DEVICE FOR ILLUMINATING A DISPLAY
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Mar 24, 2016
app pub date -
Apr 29, 2014
filing date -
May 7, 2013
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
The invention relates to methods and devices for controlling the intensity and direction of light emerging from an independent source, inter alia to design-based interactions of optical devices in particular for systems for illuminating coloured liquid crystal displays. The method comprises redirecting radiation from sources with the aid of lenses (reflectors). The radiation is redirected onto a light-diffusing substrate and uniformly illuminated sections are produced which in turn form a uniform illumination of the display. The technical result of the use of the present invention consists in improving the light characteristics of displays such as efficiency, lighting homogeneity, and reducing the cost of the system by virtue of the use of lenses (reflectors) with one working surface and a smaller number of highly effective light sources (light-emitting diodes).
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully