A method and system for correcting the color of a display image of an LED display
By measuring the characteristics of the LED display's light-emitting modules and monitoring their temperature in real time, a temperature-luminous efficacy mapping table was constructed. The driving current was dynamically adjusted, which solved the problem of uneven color caused by module aging and temperature changes. This achieved high-precision color and brightness correction, improving the display quality and stability of the screen.
CN122290495APending Publication Date: 2026-06-26SHENZHEN CHIXUAN TECH CO LTD
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHENZHEN CHIXUAN TECH CO LTD
- Filing Date
- 2026-05-22
- Publication Date
- 2026-06-26
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Figure CN122290495A_ABST
Abstract
This invention relates to the field of LED display technology and discloses a method and system for color correction of LED display images. The method involves measuring the characteristics of each light-emitting module under multiple preset temperature conditions to obtain its optical output information and internal temperature information under different temperatures and electrical driving parameters, and constructing a temperature-luminous efficacy mapping table based on this information. This mapping table is stored in the non-volatile memory of the controller inside the light-emitting module, enabling the system to query the mapping table based on the real-time acquired operating temperature value during the operation of the light-emitting module to determine and adjust the driving current of the light-emitting unit.
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