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:
Nov. 16, 2010
Filed:
Oct. 23, 2006
Mitsuo Matsushima, Kitasaku-gun, JP;
Mitsuo Matsushima, Kitasaku-gun, JP;
Minebea Co., Ltd., Kitasaku-gun, JP;
Abstract
To provide a discharge lamp lighting device in which the initial state of discharge in a wiring of a circuit on the secondary side of a transformer in the discharge lamp lighting device is accurately detected and the operation thereof stops and which can be applied to a large-scaled liquid crystal display device. The discharge lamp lighting device according to the present invention includes a transformer, a transformer drive circuit, and a control circuitfor controlling the transformer drive circuit. The transformer drive circuitdrives the primary side of the transformer, and a discharge lampis lit on by being connected to the secondary side of the transformer. The discharge lamp lighting device further includes a discharge detecting patternhaving one end connected to the ground and the other end connected to the control circuit, and means that detects a voltage induced by electromagnetic waves received by the discharge detecting patternand stops the power supply to the secondary side of the transformer, and at least one part of the discharge detecting patternis disposed adjacent to a portion of a high-voltage wiring of a circuit on the secondary side of the transformer