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:
Feb. 19, 2008
Filed:
May. 29, 2002
Katsuo Isono, Tokyo, JP;
Kunihiro Yoshizawa, Tokyo, JP;
Katsuo Isono, Tokyo, JP;
Kunihiro Yoshizawa, Tokyo, JP;
LG Electronics Inc., Seoul, KR;
Abstract
A method and an apparatus of re-adjusting convergence of a projection TV are disclosed. The apparatus includes a display device on which an image is projected and at least one light-sensing element () being provided around the display device. The light-sensing element () is composed of first and second sub-sensors () that generate separate output signal projected alignment pattern moves over the sub-sensors (). The apparatus further includes a microprocessor calculating a convergence re-adjustment vector by obtaining a location of the light-sensing element (), from which a previous convergence correction was made. The location of the light-sensing element () is obtained by analyzing the output signals. By using the apparatus and method of present invention, the misconvergence of the projection TV can be corrected very quickly and precisely.