Visually Impaired Mode Display Power Management
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Solution Overview
Problem
Mobile devices with large display screens consume significant power, and visually impaired users do not require the display to be on for interaction, leading to unnecessary power consumption and potential privacy issues.
Innovation Solution
Implementing a visually impaired (VI) mode that keeps the display screen powered off by default while maintaining touch-sensitive input functionality, allowing users to switch between standard and VI modes, with enhanced non-visual feedback and audio interfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the display screen is powered on for touch-screen input, then user interaction is enabled, but power consumption increases
Solution Approach 1:
The patent segments the display and touch-sensitive input interface into independent controllable components. The display can be turned off while the touch-sensitive input interface remains operational, allowing users to interact without visual feedback. This segmentation resolves the contradiction by enabling touch input functionality while eliminating the need for continuous display power.
Solution Approach 2:
The system dynamically adjusts the power state of different components based on user needs. The display and touch interface can be independently powered on or off, allowing flexible adaptation to different usage scenarios. This dynamic control enables the system to maintain touch input capability while reducing display power consumption.
2Use of energy by moving object
If the display screen is turned off to reduce power consumption, then battery life is extended, but user interaction capability is reduced
Solution Approach 1:
By separating the display and touch-sensitive input interface into independent components, the system allows the touch interface to remain functional while the display is powered off. This enables users to maintain interaction capability through tactile feedback alone, resolving the contradiction between power savings and usability.
Solution Approach 2:
The touch-sensitive input interface acts as an intermediary that enables user interaction without requiring visual display. Users can navigate and control the device through tactile sensations and audio feedback, maintaining full interaction capability while the display remains off to save power.
3Loss of information
If the display screen is powered on for information display, then information is visible to users, but privacy is compromised
Solution Approach 1:
The patent segments the information delivery channels into visual display and non-visual output (audio/tactile). Users can receive information through audio and tactile feedback from the touch interface without visual display, preventing unintended information exposure to others while maintaining full information accessibility for the user.
Solution Approach 2:
Audio and tactile feedback serve as intermediary channels that convey information without requiring visual display. This intermediary approach allows users to access information privately through non-visual senses, eliminating the privacy risk associated with visible displays while maintaining information accessibility.
Data Source
AI summary
A mobile device operates in a standard mode of operation, or operates in a visually impaired (VI) mode of operation designed for visually impaired users and in which a display screen of the mobile device is turned off by default. The display screen may thus remain turned off in the VI mode even when conditions under which the display screen is turned on in the standard mode are satisfied. The display screen may further remain turned off in the VI mode even when conditions under which a touch-screen input interface of the mobile device is turned on in either of the standard and VI modes. The mobile device may be configured to automatically transition from the VI mode to the standard mode in response to detecting a gaze directed towards the display screen.