Display Brightness Control Based on Image Sensitivity
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Display apparatuses face high power consumption due to continuous light output, and existing dimming technologies that reduce brightness to save power compromise user viewing experience.
Innovation Solution
A display apparatus that adjusts brightness based on user sensitivity to brightness changes, determined through a sensitivity test using various test images with different image quality information, generating driving signals to maintain user experience while reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If brightness is reduced to decrease power consumption, then energy efficiency is improved, but viewing experience deteriorates
Solution Approach 1:
The system dynamically adjusts brightness based on real-time analysis of image content characteristics and user sensitivity levels. Instead of static dimming, the brightness control adapts to different image types (e.g., dark scenes, high-contrast images) and individual user preferences, optimizing the balance between power consumption and viewing experience.
Solution Approach 2:
The system applies different brightness adjustment strategies to different regions or types of image content. By analyzing image quality information such as luminance distribution, contrast levels, and scene composition, the system selectively dims appropriate regions while maintaining brightness in areas critical for user perception, thus preserving viewing experience while reducing overall power consumption.
2Reliability
If brightness is continuously maintained for good viewing experience, then user satisfaction is improved, but power consumption increases
Solution Approach 1:
The system applies partial dimming rather than complete brightness maintenance or complete darkness. By reducing brightness only to the extent necessary based on image content analysis and user sensitivity, the system achieves significant power savings while maintaining sufficient visibility and viewing quality. The dimming level is optimized to be just enough to save power without compromising user experience.
Solution Approach 2:
The system changes brightness parameters dynamically based on image quality information and user sensitivity levels. By adjusting the brightness parameter adaptively rather than maintaining a fixed high level, the system reduces energy consumption while ensuring the brightness remains within acceptable viewing thresholds for different image types and user preferences.
3Use of energy by moving object
If dimming technology is applied to reduce power consumption, then energy efficiency is improved, but brightness performance deteriorates
Solution Approach 1:
The system dynamically controls brightness based on real-time image content analysis. When images require higher brightness for good viewing (e.g., high-contrast scenes, important visual information), the system maintains higher brightness levels. When images tolerate lower brightness (e.g., dark scenes, low-detail content), the system reduces brightness to save power, thus optimizing the balance between power consumption and brightness performance.
Solution Approach 2:
The system performs preliminary analysis of image quality information before applying dimming. By pre-assessing image characteristics such as luminance distribution, contrast, and scene type, the system determines the appropriate brightness level in advance, ensuring that brightness performance is maintained when necessary while enabling power-saving dimming when appropriate.
Data Source
AI summary
Provided are a display apparatus and an operating method thereof. The display apparatus includes: a display, memory, and at least one processor, comprising processing circuitry, individually and/or collectively, configured to: store, in the memory, image quality information about one or more test images and a sensitivity level for the one or more test images, obtain an input image and image quality information about the input image, identify whether the image quality information about the input image corresponds to image quality information about at least one test image, based on the image quality information about the input image corresponding to the image quality information about the at least one test image, generate a driving signal for adjusting brightness of the input image, based on a sensitivity level for the at least one test image, and control the display through the generated driving signal.