Optimized LCD local dimming algorithm with multi partitions

Bo Wen; Zhongwen Shen; Jianjiang Zhou

doi:10.1117/12.3042569

27 November 2024 Optimized LCD local dimming algorithm with multi partitions

Bo Wen, Zhongwen Shen, Jianjiang Zhou

Proceedings Volume 13237, Optical Design and Testing XIV; 132371R (2024) https://doi.org/10.1117/12.3042569
Event: SPIE/COS Photonics Asia, 2024, Nantong, Jiangsu, China

Conference Poster

Abstract

This paper introduces an optimized mini-LED backlight local dimming algorithm. The proposed algorithm leverages grayscale dispersion degree to establish the grayscale distribution interval within each backlight partition. Subsequently, the actual grayscale of all backlight partitions is determined using the root mean square formula. This approach enables the accurate restoration of the overall grayscale distribution characteristics across natural image types. A 55-inch LCD prototype with 2304 mini-LED backlight partitions is developed to implement the proposed algorithm alongside traditional local dimming algorithms.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Bo Wen, Zhongwen Shen, and Jianjiang Zhou "Optimized LCD local dimming algorithm with multi partitions", Proc. SPIE 13237, Optical Design and Testing XIV, 132371R (27 November 2024); https://doi.org/10.1117/12.3042569

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