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:
Sep. 05, 2023
Filed:
Dec. 11, 2019
Google Llc, Mountain View, CA (US);
Farnaz Agahian, San Jose, CA (US);
Daniel Solomon, San Jose, CA (US);
Google LLC, Mountain View, CA (US);
Abstract
This document describes techniques and apparatuses for performing color calibration of display modules using a reduced number of display characteristic measurements. In aspects, methods include generating a measured lookup table () for a source display module (), using dynamic optimization to down-sample the measured lookup table and select a set of color patches, sending the color patches to a testing display module; measuring output values for the testing display module; generating a sparse lookup table () relating the color patches and the measured output values, up-sampling the sparse lookup table to a forward lookup table (), and inverting the forward lookup table to generate a reverse lookup table (). The reverse lookup table () can be utilized to determine correct output values () for driving a target display module to generate color lights within a display module color gamut.