The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 01, 2017
Filed:
Oct. 02, 2013
Applicant:
Bae Systems Plc, London, GB;
Inventors:
Leslie Charles Laycock, Chelmsford, GB;
Andrew Graham McCarthy, Chelmsford, GB;
Assignee:
BAE SYSTEMS plc, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 8/00 (2006.01); G02B 27/01 (2006.01);
U.S. Cl.
CPC ...
G02B 6/0043 (2013.01); G02B 6/003 (2013.01); G02B 6/0031 (2013.01); G02B 6/0051 (2013.01); G02B 6/0065 (2013.01); G02B 6/0068 (2013.01); G02B 6/0073 (2013.01); G02B 6/0083 (2013.01); G02B 6/0085 (2013.01); G02B 27/0101 (2013.01);
Abstract
The following invention relates to an improved LCD Backlight, particularly to an improved arrangement of the optical scattering dots within the light guiding plate. The light guiding plate comprises a lower surface which is formed with a plurality of optical scattering dots, which scatter and reflect the light beams to convert the light beams into a uniform surface light source, characterised wherein the surface area of each optical dot decreases as a function of its distance from at least one of the three edges comprising the LED lights.