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:
Oct. 21, 2014
Filed:
Jul. 20, 2009
Yong Ki Kim, Seoul, KR;
Jung Hoon Seo, Seoul, KR;
Yong Ki Kim, Seoul, KR;
Jung Hoon Seo, Seoul, KR;
LG Electronics Inc., Seoul, KR;
Abstract
The present invention relates to device and method for adjusting white balance in a laser display system, which enables to adjust white balance taking an optical characteristic of a laser beam into account. The device for adjusting white balance in a laser display system, having red, green, and blue laser beam sources, includes a temperature sensing unit for sensing the present temperatures of the laser beam sources, a detecting unit for measuring laser beam output intensity of the laser beam sources, a storing unit for storing reference values on allowable current ranges at different temperatures and laser beam output intensity at different temperatures, an adjusting value generating unit for comparing a measured value of the laser beam output intensity obtained from the detecting unit to the reference values obtained from the storing unit, to generate an adjusting value, a laser beam source driving unit for adjusting the laser beam output intensity of a relevant laser beam source according to a current value within the allowable current range or the adjusting value generated thus, and a control unit for searching the storing unit for the allowable current range corresponding to the present temperature sensed thus, or the reference value corresponding to the laser beam output intensity measured thus to control the adjusting value generating unit and the laser beam source driving unit.