Retractable Vehicle Display Winding for Space and Power Control
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Solution Overview
Problem
Conventional display devices for vehicles face limitations in space utilization and power efficiency due to fixed installations and pop-up designs, which restrict forward visibility and increase power consumption regardless of display exposure.
Innovation Solution
A flexible display device with a casing that allows the display to retract and extend via a lower surface opening, utilizing a display winder and guide system to manage the flexible POLED display, enabling controlled exposure and efficient power use by winding the display only when needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed display is installed on the dashboard, then the display can be permanently positioned for use, but it limits forward visibility and increases power consumption regardless of display exposure
Solution Approach 1:
The display unit is made dynamic through the winding mechanism, allowing it to transition between retracted and extended states. The display can be wound around the rotary drum when not in use and unwound when needed, transforming from a static fixed installation to a dynamic retractable system that adjusts its state based on usage requirements.
Solution Approach 2:
The display unit is extracted from the fixed dashboard installation and placed on a rotary drum within the casing. This extraction allows the display to be separated from the permanent mounting position, enabling it to be wound and unwound as needed, thus reducing power consumption when not in use while maintaining availability when required.
2Adaptability or versatility
If a pop-up type movable display is used, then the display can be extended when needed, but it requires a separate accommodating space that increases in size with display size
Solution Approach 1:
The display unit is nested around the rotary drum when retracted, with the flexible display wrapping around the drum's circumference. This nesting arrangement allows the display to be compactly stored within the casing volume, eliminating the need for a separate large accommodating space while maintaining the ability to extend the display when needed.
Solution Approach 2:
The display accommodation transitions from a three-dimensional box-like space to a two-dimensional cylindrical wrapping around the rotary drum. By changing the spatial dimension from volumetric storage to circumferential wrapping, the accommodating space is significantly reduced while maintaining display mobility and extendability.
3Ease of operation
If the display is extended only in an upward direction from the accommodating space, then the display can be accessed, but the installation location and range of use are limited
Solution Approach 1:
The display extension is made dynamic by allowing rotation of the rotary drum in multiple directions. The display can be unwound not only upward but also in downward and lateral directions by rotating the drum accordingly, transforming the static upward-only extension into a multi-directional dynamic extension system that enhances installation flexibility and range of use.
4Area of stationary object
If a large size display is used, then more visual information can be displayed, but it negatively impacts forward visibility and increases accommodating space requirements
Solution Approach 1:
The display system is made dynamic with the ability to retract large displays when not in use. A large flexible display can be unwound to provide extensive viewing area when needed, then wound back around the rotary drum to a compact state that minimizes impact on forward visibility, allowing the system to adapt between large display area and clear visibility based on usage requirements.
Data Source
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AI summary
Disclosed is a flexible display device for a vehicle, including a casing with an opening defined therein, a display unit capable of being retracted into and extended out of the casing via the opening, a display driver for moving the display unit, and a display winder for winding the display unit thereon based on the movement of the display unit.