Retractable Vehicle Display With Variable Exposure Control
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Solution Overview
Problem
Conventional vehicle display devices require significant space for accommodation and inefficiently use power, as they are either fixed, limiting forward visibility and requiring separate storage, and lack control over display exposure based on usage.
Innovation Solution
A flexible display device with a casing, display driver, and display winder, featuring a rotary drum with sensors for controlled exposure and a POLED display that can be retracted or extended, minimizing space usage and optimizing power consumption by adjusting the display's exposure range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed display is installed on the dashboard, then the display can provide visual information, but the forward visibility decreases and space utilization is limited
Solution Approach 1:
The display is transformed from a fixed state to a movable state, capable of extending and retracting along a guide rail. This dynamic configuration allows the display to adjust its position between a retracted state (preserving forward visibility) and an extended state (providing full display function), thereby resolving the contradiction between maintaining visibility and providing display functionality.
2Adaptability or versatility
If a pop-up style movable display is used, then the display can be stored and extended when necessary, but a separate accommodation space is required which limits space utilization
Solution Approach 1:
The display panel is nested within the dashboard structure itself. When retracted, the display is stored inside the dashboard cavity; when extended, it pulls out along the guide rail. This nesting approach eliminates the need for separate accommodation spaces, as the dashboard structure itself serves as the storage container, thereby resolving the space utilization issue.
3Loss of information
If an entire LCD screen is operated, then the display can show full information, but power consumption is inefficient when only part of the display is needed
Solution Approach 1:
The display operation is segmented into different exposure levels (fully retracted, partially extended, fully extended). The control unit can selectively extend the display to different degrees based on the information display requirements, thereby activating only the necessary portion of the display and reducing overall power consumption while maintaining information completeness.
Solution Approach 2:
The display extends and retracts dynamically based on control signals from the control unit. This dynamic adjustment allows the system to optimize power consumption by extending the display only to the extent necessary for the current task, rather than maintaining full extension continuously, thereby resolving the contradiction between information completeness and energy efficiency.
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 flexible display device reduces accommodation space requirements, enhances usability by adjusting exposure, and conserves power by only using the necessary display area, improving overall efficiency and space utilization in vehicles.
Implementation Method 1
a flexible display device for a vehicle includes a casing having an opening, a display part to be retracted or extended into or out of the casing through the opening
Data Source
AI summary
A flexible display device for a vehicle includes a casing having an opening, a display part to be retracted or extended into or out of the casing through the opening, a display driver configured to move the display part, and a display winder configured to wind the display part based on movement of the display part.