Display Device Masking Element Reduces Power Consumption
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Solution Overview
Problem
Portable display devices face challenges in reducing power consumption, especially with self-luminous displays, as they consume power in proportion to image luminance, leading to battery drain issues due to high resolution requirements and limited battery capacity.
Innovation Solution
A display device and method that determine a region of interest on the screen corresponding to user attention and display a masking element at a lower luminance level over that region, allowing for adjustable size, shape, and position, and opacity, which can be modified based on battery level, to reduce overall power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the luminance of the entire display screen is reduced to lower power consumption, then power consumption is reduced, but the viewing quality and user experience deteriorate
Solution Approach 1:
The patent applies local quality by displaying the masking element with reduced luminance only in specific regions of the display screen where content is not currently being viewed, while maintaining normal luminance in the region of interest. This allows power consumption to be reduced locally without compromising the overall viewing quality of the displayed content.
2Measurement precision
If high resolution capabilities are implemented to display bright and clear images, then image quality is improved, but power consumption increases
Solution Approach 1:
The patent applies partial action by implementing high resolution and bright image display only in the region of interest where the user is currently viewing content, while displaying the masking element with reduced luminance in other regions. This allows the system to maintain high image quality where needed while reducing overall power consumption.
3Use of energy by moving object
If the luminance of the display screen is modified to reduce power consumption, then power consumption is reduced, but the uniformity of the display is affected
Solution Approach 1:
The patent maintains display uniformity by applying the luminance modification locally rather than globally. The masking element is displayed with reduced luminance only in specific regions where content is not being viewed, while the region of interest maintains its original luminance characteristics, thus preserving the overall uniformity and stability of the display composition.
Data Source
AI summary
A display device is provided. The display device includes a display configured to display content on a screen and a processor configured to determine a region of the screen corresponding to an interest of a user in the content displayed on the screen, and display a masking element over a portion of the content displayed on the screen based on the region of the screen determined to correspond to the interest of the user. The masking element is displayed at a luminance level equal to or less than a luminance level associated with the content displayed on the screen.