Display Brightness Zoning for Uneven Ambient Light
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Solution Overview
Problem
Existing display devices fail to adapt the brightness of a single display device to factors such as different fields or environments, especially in environments with different light sensitivity, and the display device screen brightness performance, and the display device screen brightness performance is not adjustable to meet the specific needs of various environments, and the brightness of the display device is not adaptable to the ambient light conditions, leading to poor visibility in diverse settings.
Innovation Solution
A processing system for simultaneously presenting brightness performance of different areas on a single display screen, utilizing a detection processor for multi-point photometry to determine ambient light intensity distribution and a control processor to adjust the screen into multiple modulation areas with varying brightness levels based on light sensitivity, ensuring optimal visibility across different areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a single display device uses uniform brightness across the entire screen, then the device structure remains simple and easy to manufacture, but the display effectiveness deteriorates in environments with varying light sensitivity across different screen areas
Solution Approach 1:
The patent divides the display screen into multiple independent brightness zones (first display area and second display area), each controlled by separate backlight units. This segmentation allows different regions to have different brightness levels, resolving the contradiction by enabling adaptive brightness control without requiring a completely new display structure.
Solution Approach 2:
The patent implements local brightness control by assigning different brightness characteristics to different screen regions. The first backlight unit provides higher brightness for areas requiring better visibility, while the second backlight unit provides lower brightness for areas where excessive brightness would cause discomfort. This local quality differentiation resolves the contradiction between structural simplicity and display effectiveness.
2Adaptability or versatility
If the display screen is divided into multiple modulation areas with different brightness levels, then adaptability to different light conditions improves, but device complexity increases
Solution Approach 1:
The patent segments the backlight system into multiple independent units, each corresponding to a specific display area. This segmentation enables independent brightness control for each zone, improving adaptability to different lighting conditions while keeping each control unit relatively simple in structure.
Solution Approach 2:
The patent designs the backlight system with multi-functionality, where each backlight unit can independently adjust its brightness output. This universal design allows the same basic backlight structure to serve multiple brightness levels across different screen areas, achieving high adaptability without proportionally increasing overall system complexity.
3Illumination intensity
If higher brightness is used throughout the entire screen, then visibility in bright environments improves, but energy consumption and visual comfort in darker areas worsen
Solution Approach 1:
The patent applies local quality by providing higher brightness only in specific areas (first display area) where it is needed for visibility, while maintaining lower brightness in other areas (second display area). This localized brightness control reduces overall energy consumption compared to uniform high brightness, while still achieving good visibility where required.
Solution Approach 2:
The patent implements partial brightness enhancement by concentrating higher brightness output only in the first display area rather than across the entire screen. This partial action approach achieves the necessary illumination intensity for visibility in critical areas while avoiding the excessive energy consumption that would result from uniformly high brightness across all areas.
Data Source
AI summary
A processing system for simultaneously presenting brightness performance of different areas on a single display screen includes: a detection processor and a control processor. The detection processor performs a multi-point photometry of a pre-imaging area to find out the difference in ambient light intensity distribution among the points on the display screen after a display device is installed, where the pre-imaging area refers to an area of a display device set up or projected for viewing. The control processor connected to the detection processor for correspondingly cutting a screen range of the display device into multiple modulation areas based on the ambient light intensity difference of the pre-imaging area. In this way, the display screen can be adjusted to adapt to various environments with differences in brightness or position.