Display Backlight Region Segmentation for Image Contrast
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Solution Overview
Problem
The contrast of images displayed on display screens is low in existing technologies.
Innovation Solution
A backlight processing method that divides backlight regions into first and second types based on image characteristics, controlling their luminance values differently to enhance contrast, involving a stacked backlight module and display panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If uniform luminance control is applied to all backlight regions, then the manufacturing and control process is simple, but the image contrast is low
Solution Approach 1:
The backlight module is divided into multiple independently controllable backlight regions, allowing different luminance values to be applied to different regions based on the displayed image content, thereby improving image contrast while maintaining manageable control complexity
Solution Approach 2:
Different luminance values are assigned to different backlight regions according to the local requirements of the displayed image, creating high luminance in bright areas and low luminance in dark areas to enhance overall image contrast and visual quality
2Illumination intensity
If high luminance difference between backlight regions is created, then image contrast is improved, but energy consumption increases
Solution Approach 1:
The backlight luminance values are dynamically adjusted based on the content of the displayed image, allowing the system to optimize the balance between image contrast and energy consumption by adapting to different display scenarios in real-time
Solution Approach 2:
The luminance parameters of different backlight regions are changed according to the image content, with higher luminance allocated to regions displaying bright content and lower luminance to regions displaying dark content, thereby improving contrast while managing energy usage
Data Source
AI summary
A backlight processing method and device of a display screen, a storage medium, and an electronic device are provided. The method includes: controlling a luminance value of a first type backlight region to be a target luminance value determined according to an image to be displayed; controlling a luminance value of the second type backlight region to be a preset luminance value, the preset luminance value is greater than the target luminance value, and a difference between the preset luminance value and the target luminance value is greater than a preset difference value; and controlling the display panel to display the image to be displayed based on luminance of the first type backlight region and the second type backlight region.