Systems and methods for altering light output and white point of a light source or light source display
AssigneeStereyo BV
InventorsRobbie THIELEMANS, Vince DUNDEE
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Abstract
A method and related system are disclosed for altering the light output of a light source, or for altering the light output and/or white point of a light source display, such as an RGB LED or OLED display, herewith using only correction data, which could be brightness correction data, and amongst which for example calibration data could be used. Hence, the need to perform cumbersome measurements and/or adaptations is herewith limited or avoided.
Claims21
A system comprising:
- at least one light-emitting element (LEE), said at least one LEE comprising at least three primary colors and having a light output, wherein said light output of said at least one LEE is driven or modulated by a signal for each of said at least three primary colors;
- a processor configured to adjust said light output of said at least one LEE for each of said at least three primary colors to a target light output;
- a storage configured to store correction parameters that are configured to be used to adjust said light output of said at least one LEE for each of said at least three primary colors to said target light output;
- wherein the processor is further configured to perform a mathematical calculation of one or more new correction parameters based on said target light output or desired light output of the primary color set comprising said at least three primary colors, based on previous correction parameters, and/or based on a new target light output, and
- wherein the processor is further configured to implement the calculated one or more new correction parameters and thereby modify said light output to said new target light output based on said mathematical calculation.
A method for altering a light output to a new target light output of one or more light-emitting elements (LEEs) of a display system being a lighting system or a light source display system comprising said one or more LEEs, said one or more LEEs comprising at least three primary colors, said method comprising:
- measuring said light output for each of said one or more LEEs of said lighting system or said display system according to each of said at least three primary colors;
- retrieving or calculating correction parameters used for altering said light output;
- calculating new correction parameters based on a target light output, previous correction parameters, and/or said new target light output, said calculating in particular including determining one or more calibration matrices;
- and
- applying the calculated new correction parameters to said light output of said LEEs, herewith altering said light output to said new target light output based on said calculating.
Dependencies are inferred from the claim text.