Luminance Adjustment for Reducing Display Flickering
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Organic electroluminescence display devices face flickering issues due to large differences in content between adjacent frames, affecting visual effects, which existing peak luminance control algorithms fail to adequately address.
Innovation Solution
A method and device for luminance adjustment that categorize image data signals into static and dynamic modes, using piecewise linear transformation and gamma circuit control to adjust luminance based on the sum of luminance components, with distinct adjustment modes for increasing, maintaining, or decreasing luminance, thereby reducing flickering and enhancing display effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If peak luminance control algorithm is used to adjust luminance, then luminance adjustment capability is improved, but image flickering occurs due to large differences in content between adjacent frames
Solution Approach 1:
The patent segments the luminance adjustment process into multiple adjustment modes (first mode for increasing luminance, second mode for maintaining luminance, third mode for decreasing luminance) based on the sum of luminance components. This segmentation allows the system to apply appropriate adjustment strategies for different image content types, reducing flickering while maintaining luminance control capability.
Solution Approach 2:
The patent dynamically selects the appropriate luminance adjustment mode based on the sum of luminance components in the image data signal. The system transitions between different adjustment modes according to the content characteristics, enabling adaptive luminance control that prevents flickering while maintaining adjustment effectiveness.
2Adaptability or versatility
If multiple luminance adjustment modes with different ranges are applied, then display adaptability is improved, but device complexity increases
Solution Approach 1:
The patent changes the adjustment parameters (luminance adjustment range) based on the selected adjustment mode. The first mode uses a larger luminance adjustment range, the second mode uses a moderate range, and the third mode uses a smaller range. This parameter adaptation enables the system to handle different display scenarios effectively without requiring overly complex control mechanisms.
Data Source
AI summary
A method and a device for luminance adjustment, and a display device are provided. The luminance adjustment method includes: receiving an image data signal; and performing luminance adjustment on a dynamic image according to a target adjustment mode when a received image data signal belongs to the dynamic image, wherein the target adjustment mode is a luminance adjustment corresponding to a sum of luminance components in the image data signal among the plurality of adjustment modes; the plurality of adjustment modes includes a first mode, a second mode and a third mode, the range of luminance adjustment based on the second mode is between the one based on the first mode and the one based on the third mode. With the luminance adjustment method and device, the image flickering in displaying a dynamic image may be reduced.