Wearable Display Switching Between Transparent and Active States
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Solution Overview
Problem
Smart wearable devices, such as smart watches, face issues with short standby time due to high power consumption from frequent screen activations and sensor data displays, leading to poor user experience and the need for daily charging.
Innovation Solution
A wearable device with a display panel and driving circuit that switches between a transparent non-displaying state and a displaying state, utilizing a light guiding structure and polymer-stabilized liquid crystal display panel to minimize power consumption while maintaining functionality, allowing the device to be viewable in a transparent state and displaying information efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a display screen is activated frequently to show information and sensor data, then the information display function is improved, but the power consumption increases and standby time decreases
Solution Approach 1:
The display panel switches between transparent non-displaying state and displaying state in a periodic manner, activating only when information needs to be shown. This periodic activation reduces overall power consumption while ensuring information is displayed when needed.
Solution Approach 2:
The display panel uses different states (transparent vs. displaying) in different time periods based on local needs. When information display is required, the panel transitions to displaying state; otherwise, it remains in transparent state, optimizing power consumption for each specific moment.
2Loss of information
If a traditional display screen is used to show information, then the information display function is improved, but the standby time decreases due to high power consumption
Solution Approach 1:
The display panel utilizes optical property changes (transparency to opaque displaying state) to achieve information display. This allows the panel to remain transparent and non-consumptive during standby, extending battery life while still providing full display functionality when activated.
Solution Approach 2:
The display panel dynamically transitions between transparent and displaying states based on operational needs. This dynamic switching optimizes the balance between information visibility and power consumption, extending standby time while maintaining display capability.
3Loss of information
If the display panel is kept in displaying state to show information, then the information display function is improved, but the power consumption increases
Solution Approach 1:
The display panel operates in periodic cycles, remaining in transparent non-displaying state during standby and switching to displaying state only when information needs to be shown. This periodic operation minimizes energy loss while ensuring information display functionality is available when required.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution extends the standby time of wearable devices by reducing power consumption while enabling efficient image display and retaining the traditional functions and textures of the device, enhancing user experience through improved power management and display technology.
Implementation Method 1
utilizing a light guiding structure and polymer-stabilized liquid crystal display panel to minimize power consumption while maintaining functionality
Implementation Method 2
the driving circuit is configured to control the display panel to switch between: a transparent non-displaying state in which the main body is viewable by a user, and a displaying state in which the information displayed is viewable by the user
Data Source
AI summary
A wearable device is provided, including: a main body; a display panel over the main body for displaying information; and a driving circuit coupled to the display panel, where the driving circuit is configured to control the display panel to switch between: a transparent non-displaying state in which the main body is viewable by a user, and a displaying state in which the information displayed is viewable by the user.