Projector Light Source Brightness Control via Image Data Analysis
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Solution Overview
Problem
Current projector systems consume excessive power due to the light source being continuously active, even when displaying dark or low-brightness images, which is inefficient and not optimized for power savings.
Innovation Solution
Implementing content adaptive power management by analyzing image data to adjust the light source brightness and pixel values, allowing the light source to be dimmed for darker images and boosting pixel intensity to maintain user perception, thereby reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the light source is continuously active to ensure consistent image display quality, then image display reliability is improved, but power consumption increases
Solution Approach 1:
The light source brightness is dynamically adjusted based on the actual content being displayed. The system analyzes image data to determine the required brightness level and continuously adapts the light source output accordingly, transitioning from a static always-on state to a dynamic content-adaptive state that maintains reliability while reducing power consumption.
Solution Approach 2:
The system changes the brightness parameter of the light source based on content analysis. By analyzing image data characteristics and adjusting the light source brightness parameter dynamically, the system achieves both power savings and maintained image quality where appropriate.
2Use of energy by moving object
If the light source brightness is reduced for dark images to save power, then power consumption decreases, but image display quality may deteriorate
Solution Approach 1:
The system employs feedback mechanisms where image data is analyzed to determine the appropriate brightness level, and this information feeds back to control the light source brightness. This closed-loop control ensures that brightness is adjusted appropriately for content requirements while achieving power savings.
Solution Approach 2:
The system performs preliminary analysis of image data before displaying content to determine the required brightness level. By analyzing the content characteristics in advance, the system can pre-adjust the light source brightness to the optimal level, avoiding both excessive power consumption and quality deterioration.
3Adaptability or versatility
If ambient light sensing is used to adjust projector brightness, then adaptability to environment is improved, but the system cannot optimize power based on content requirements
Solution Approach 1:
The system combines both ambient light sensing and content analysis capabilities into a unified brightness control system. This multi-functional approach allows the projector to adapt to both environmental conditions and content requirements, achieving comprehensive optimization of both adaptability and power efficiency.
Solution Approach 2:
The patent merges ambient light sensing with content-adaptive brightness control into an integrated system. By combining these two previously separate functions, the system achieves both environmental adaptability and content-based power optimization simultaneously.
Data Source
AI summary
Content adaptive power management technologies of projector systems are described. One method analyzes image data to be displayed by a projector system. A projector brightness of a light source of the projector system is adjusted based on the analyzed image data. The pixel values of the image data input into an imager of the projector system are adjusted based on the analyzed image data.