Foldable Display State Sensing for Low-Power Partial Image Display
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Solution Overview
Problem
Existing display devices are not optimized for low power consumption and efficient image display in folded states, particularly in portable information processors that may be subjected to accidental forces.
Innovation Solution
A foldable display device with a sensing mechanism to detect its state and control the display of a black image in non-visible regions when folded, along with synchronized power and signal supply control to reduce unnecessary display operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the display device continuously displays images in all regions including non-visible regions when folded, then the display function is maintained, but power consumption increases
Solution Approach 1:
The display device dynamically adjusts its display behavior based on the detected folded state. The control portion receives fold signals from the sensing portion and automatically switches between displaying images in all regions (when open) and displaying black images in non-visible regions (when folded), optimizing power consumption while maintaining display functionality when needed
Solution Approach 2:
The sensing portion automatically detects the folded state and triggers the control portion to adjust display settings without user intervention. The system self-regulates power consumption by displaying black images in non-visible regions when folded, eliminating the need for manual user configuration
2Area of stationary object
If the display device displays images in non-visible regions when folded, then the display area is maximized, but unnecessary power usage increases
Solution Approach 1:
The display device applies different display qualities to different regions based on visibility. When folded, visible regions continue to display images with full quality, while non-visible regions display black images, creating localized quality adjustment that reduces unnecessary power usage in areas where display is not needed
3Illumination intensity
If the display device maintains full display operations in all regions, then image display quality is preserved, but power consumption increases
Solution Approach 1:
The display device segments the display region into visible and non-visible areas based on the folded state detection. The control portion generates control signals that apply different display operations to different segments: full display operations for visible regions and black image display for non-visible regions, thereby preserving image quality where needed while reducing power consumption
Data Source
AI summary
A display device with low power consumption is provided. Furthermore, a display device in which an image is displayed in a region that can be used in a folded state is provided. The conceived display device includes a display portion that can be opened and folded, a sensing portion that senses a folded state of the display portion, and an image processing portion that generates, when the display portion is in the folded state, an image in which a black image is displayed in part of the display portion.