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:
Jun. 06, 2017
Filed:
Dec. 31, 2014
Ka Yee Mak, Kwai Chung, HK;
Sai Kit Wong, Kwai Chung, HK;
Xiao Lan Liu, Chengdu, CN;
Jian Jun Ju, Chengdu, CN;
Ka Yee Mak, Kwai Chung, HK;
Sai Kit Wong, Kwai Chung, HK;
Xiao Lan Liu, Chengdu, CN;
Jian Jun Ju, Chengdu, CN;
ASM TECHNOLOGY SINGAPORE PTE LTD, Singapore, SG;
Abstract
Method of generating a correction function for a light-emitting diode (LED) testing process, including: detecting light emitted by a reference LED and reflected from inactive LEDs on a panel within a field of view of a detector; varying a number of the inactive LEDs to derive uncorrected values of an optical parameter as a function of the number of inactive LEDs; detecting light emitted by the reference LED, or by an active LED having identical optical properties, in the absence of any other LEDs, to determine at least one reference value for each optical parameter; and calculating differences between the uncorrected values and each reference value to generate the correction function, the correction function being based on the number of inactive LEDs which are arranged within the field of view of the detector in the light detecting step.