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. 12, 2008
Filed:
Oct. 14, 2004
Hiroshi Ishida, Kanagawa, JP;
Hiroshi Ishida, Kanagawa, JP;
NEC LCD Technologies, Ltd, Kanagawa, JP;
Abstract
An auxiliary plate () is fixed to a rear plane of a housing for fixedly holding a lamp unit () having a plurality of lamps. In the auxiliary plate (), a convex portion and a concave portion are combined. The convex portion has a space between the housing and itself, which is formed by protruding a sheet metal, and the concave portion contacts with the housing by denting the sheet metal. In the auxiliary plate, an area for mounting a board vulnerable to heat is formed with the convex portion and an air layer performs as heat insulation. The convex and concave portions are arrayed in a direction where heated air easily flows in another area. Thus, rigidity can be remarkably increased compared to a flat-shaped sheet metal, and heat generated by a backlight is effectively dissipated, as well as a temperature rise and an occurrence of a temperature gradient are suppressed.