Data processing method and device

The data processing method synchronizes local dimming and image data output in display devices by using synchronization signals and circuit processing to minimize delay, improving display quality by ensuring both units display the same frame data.

KR102999026B1Active Publication Date: 2026-08-03BEIJING XIANXIN TECH CO LTD
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Patent Information

Application Number
KR1020257008633
Authority / Receiving Office
KR · KR
Patent Type
Patents
Current Assignee / Owner
Priority Date
2022-09-16
Filing Date
2023-09-15
Publication Date
2026-08-03
Estimated Expiration
2043-09-15

AI Technical Summary

Technical Problem

The issue of degraded display quality in display devices due to the backlight unit and liquid crystal panel displaying different frames, resulting from a delay in the output of local dimming data relative to image data.

Method used

A data processing method that synchronizes the output of local dimming data with image data by determining the output start and end times based on synchronization signals, utilizing extraction, filtering, and caching circuits to minimize delay, and controlling the backlight unit's power connection to ensure both units display the same frame data.

Benefits of technology

Improves display quality by ensuring the backlight unit and liquid crystal panel display the same frame data, reducing output delay and overlapping output times to enhance synchronization.

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Abstract

The present application provides a data processing method and apparatus, wherein the data processing method comprises the steps of: acquiring current frame image data and a synchronization signal of the current frame image data; processing the current frame image data to acquire current frame local dimming data; and outputting the current frame local dimming data according to the synchronization signal of the current frame image data. Since the output start time of the current frame local dimming data is earlier than the output end time of the current frame image data, and the output end time of the current frame local dimming data is later than the output end time of the current frame image data, the output time of the current frame local dimming data and the output time of the current frame image data are partially overlapped. Through this configuration, the liquid crystal panel and the backlight unit display the same frame data, thereby improving display quality.
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