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:
Dec. 10, 2013
Filed:
Sep. 20, 2011
Chang-yun Moon, Yongin, KR;
Hee-seong Jeong, Yongin, KR;
Sun-hwa Kim, Yongin, KR;
Samsung Display Co., Ltd., Yongin, Gyeonggi-Do, KR;
Abstract
An auto-focusing apparatus and method, the apparatus including an emission unit, the emission unit being configured to irradiate light on the organic light-emitting display apparatus; an optical system between the organic light-emitting display apparatus and the emission unit, the optical system being configured to adjust a position of the optical system on an optical axis and focus the irradiated light on the pixel unit; a light-receiving unit, the light-receiving unit being configured to receive light reflected by the organic light-emitting display apparatus and measure an intensity and a wavelength of the reflected light; and a controller, the controller being configured to receive the intensity of light measured by the light-receiving unit, control the position of the optical system, determine that the auto-focusing apparatus is focusing light onto the pixel unit when the intensity of light received by the light-receiving unit is a maximum value, and determine the position of the optical system as an optimal focal length.