Patents by Inventor Xiao Lan LIU

Xiao Lan LIU has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • LED testing process and correction methods therefor
    Patent number: 9671280
    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.
    Type: Grant
    Filed: December 31, 2014
    Date of Patent: June 6, 2017
    Assignee: ASM TECHNOLOGY SINGAPORE PTE LTD
    Inventors: Ka Yee Mak, Sai Kit Wong, Xiao Lan Liu, Jian Jun Ju
  • LED TESTING PROCESS AND CORRECTION METHODS THEREFOR
    Publication number: 20150198480
    Abstract: Disclosed is a method of generating a correction function for a light-emitting diode (LED) testing process.
    Type: Application
    Filed: December 31, 2014
    Publication date: July 16, 2015
    Inventors: Ka Yee MAK, Sai Kit WONG, Xiao Lan LIU, Jian Jun JU