Retractable Vehicle Display Layout for Space and Power Control

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Solution Overview

Problem

Existing vehicle display devices have limited space utilization due to fixed installation positions, require separate accommodation spaces for larger displays, and inefficiently use power as the entire screen is operated regardless of the display's exposure.

Innovation Solution

A flexible display device for vehicles that includes a casing with an opening, a retractable or extendable display part, a display driver for moving the display part, and a display winder for winding the display part based on its movement. The device allows for multiple extension modes and includes sensors to detect the display's state and control its exposure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If a fixed display is installed in a vehicle, then the display can be positioned at a specific location, but the space utilization is limited and forward visibility decreases as display size increases

Engineering Contradiction:
Improvedisplay installation areaVSAvoidspace utilization
Core Design Contradiction:
Area of stationary objectVSEase of operation

Solution Approach 1:

The display device transitions from a fixed installation to a movable one, allowing the display to be repositioned or retracted as needed. The housing can move the display between an extended state (visible to driver and passenger) and a retracted state (stored in accommodation space), providing dynamic adaptability to different usage scenarios and improving space utilization.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If a pop-up style movable display is used, then the display can be extended when needed, but a separate accommodation space is required which limits space utilization

Engineering Contradiction:
Improvedisplay extension capabilityVSAvoidaccommodation space
Core Design Contradiction:
Adaptability or versatilityVSArea of stationary object

Solution Approach 1:

The display device is nested within the housing structure, with the accommodation space integrated into the housing rather than being a separate component. The display can be retracted into the housing when not in use, allowing the accommodation function to be nested within the existing vehicle dashboard structure, thereby minimizing additional space requirements.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Illumination intensity

If the entire screen is operated in LCD mode, then the display is always visible, but power consumption is inefficient as all power is used regardless of display exposure

Engineering Contradiction:
Improvedisplay visibilityVSAvoidpower consumption
Core Design Contradiction:
Illumination intensityVSUse of energy by moving object

Solution Approach 1:

The display device dynamically adjusts its operational state based on exposure needs. The housing can extend the display to full visibility when needed and retract it when not needed, allowing the system to optimize power consumption by controlling the display's active state according to actual usage requirements rather than maintaining constant full-power operation.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP4316889B1Flexible display device for vehicle, method of controlling the same, and vehicle including display device
Publication Date: 2025.04.23 HYUNDAI MOBIS CO LTD
  • EP4316889B1 patent drawingFigure 1
  • EP4316889B1 patent drawingFigure 2
  • EP4316889B1 patent drawingFigure 3A

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.