Display Brightness Mapping with Multi-Point Ambient Photometry
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Solution Overview
Problem
Existing display devices lack the ability to adaptively adjust brightness levels across different areas of the screen in response to varying light sensitivity due to environmental conditions, leading to poor visibility and inadequate display performance.
Innovation Solution
A processing system that employs a detection processor for multi-point photometry to identify ambient light intensity distribution and a control processor to divide the screen into modulation areas, adjusting brightness levels based on light sensitivity, using current and Gamma values to optimize display performance in different zones.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the display screen uses a single uniform brightness level, then the device structure remains simple and easy to manufacture, but the display performance deteriorates in environments with varying light sensitivity across different screen areas
Solution Approach 1:
The display screen is divided into multiple modulation areas with different brightness levels. The processing system segments the screen based on ambient light intensity distribution detected at different positions, allowing each area to be independently controlled to match its local lighting conditions
Solution Approach 2:
Different areas of the display screen are assigned different brightness characteristics based on their local ambient light conditions. Areas with higher ambient light intensity receive lower brightness output, while areas with lower ambient light receive higher brightness, creating locally optimized display quality
2Adaptability or versatility
If the display screen is divided into multiple modulation areas with different brightness levels, then the adaptability to varying light conditions improves, but the device complexity increases
Solution Approach 1:
The display device performs self-diagnosis and self-adjustment by using its own display output as the light source for ambient light detection. The detection processor measures the ambient light intensity by detecting the display's own emission, eliminating the need for external light sensors, and automatically adjusts brightness based on the detected conditions
3Illumination intensity
If the ambient light intensity is increased to improve visibility in bright environments, then the viewing performance improves, but the energy consumption increases
Solution Approach 1:
The display brightness is dynamically adjusted based on real-time ambient light conditions. The processing system continuously monitors ambient light intensity and automatically modifies the brightness output of different screen areas, allowing the display to adapt its energy consumption to match the actual viewing requirements
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system dynamically adjusts brightness levels in different screen areas, enhancing visibility and adaptability to varying light conditions, ensuring clear display performance across diverse environments and user positions.
Implementation Method 1
a detection processor, for performing a multi-point photometry of a pre-imaging area of a display device
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.