Dynamic Display Energy Management for Multi-Screen Devices
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Solution Overview
Problem
Handheld computing devices with single touch screen displays face challenges in balancing display graphics and input areas due to limited screen space, leading to user frustration and productivity loss due to visual clutter and difficulty in interpreting complex interactions.
Innovation Solution
A dual multi-display handheld computing device that dynamically adjusts energy usage of display elements based on sensed energy storage device parameters, allowing for enhanced power conservation and improved user interface management by optimizing display settings such as luminance, brightness, and resolution across multiple screens.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single touch screen display is used to provide both content display and user input interface, then device configurability and user interface flexibility are improved, but visual clutter increases and user productivity decreases
Solution Approach 1:
The display is segmented into multiple independent display elements (first display element and second display element) that can be independently controlled. This allows different portions of the interface to serve different functions simultaneously - one element for content display and another for user input - thereby reducing visual clutter while maintaining interface flexibility.
Solution Approach 2:
The patent transitions from a single two-dimensional display plane to multiple display elements that can be arranged in different spatial configurations. This dimensional expansion allows the interface to separate content and interaction areas both spatially and functionally, improving productivity while preserving configurability.
2Loss of information
If display space is increased to improve graphics interpretation, then information interpretability is improved, but device form factor constraints are violated
Solution Approach 1:
Different display elements are assigned different functional qualities - one element optimized for content display with higher resolution or larger area, and another element optimized for user input. This local differentiation allows each element to excel at its specific function without requiring the entire display area to be enlarged.
3Illumination intensity
If display brightness and luminance are increased to improve visibility, then display visibility is improved, but energy consumption increases
Solution Approach 1:
The system dynamically adjusts the luminance and brightness parameters of individual display elements based on their current function and environmental conditions. When a display element is used for content viewing, it can maintain higher brightness, while when used for input or during low-activity periods, brightness is reduced to conserve energy.
Solution Approach 2:
The patent changes the display parameters (luminance, brightness, refresh rate) of different display elements independently based on their functional requirements and energy storage device status. This allows optimization of visibility where needed while minimizing energy consumption overall.
Data Source
AI summary
A computational device energizes, at different times, a first set of display elements in a display in accordance with differing values and/or display parameters in response to differing energy management requirements.