Rollable Display Panel Lifting Mechanism for Flat State Stability
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Solution Overview
Problem
Conventional rollable display devices lack a mechanism to securely hold the display panel in an unrolled state, leading to usability issues as the panel tends to roll back up during use.
Innovation Solution
A rollable display device incorporating a support assembly with a driving unit for linear motion and a lifting unit that moves the display panel up and down, combined with a panel roller unit for rolling and unrolling along the periphery, ensuring the panel remains flat and usable.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a rollable display device includes a mechanism to hold the display panel in an unrolled state, then the usability and stability are improved, but the device complexity increases
Solution Approach 1:
The support assembly transitions from a static structure to a dynamic one, capable of adapting between rolled and unrolled states. The lifting unit enables the display panel to be raised and held at different positions, providing dynamic stability rather than a fixed configuration.
Solution Approach 2:
The support assembly is divided into distinct functional units: a driving unit for generating motion, a lifting unit for raising the display panel, and a support unit for maintaining position. This segmentation allows each component to perform its specific function efficiently while keeping the overall system manageable.
2Ease of operation
If a rollable display device includes a driving unit and lifting unit for maintaining the display panel in an unrolled state, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The driving unit automatically controls the lifting unit to raise and hold the display panel without requiring manual intervention. The system serves itself by using the motor to generate the necessary motion and force, eliminating the need for user effort to maintain the unrolled state.
Solution Approach 2:
The manual mechanical operation of holding the display panel is replaced with an automated motor-driven system. The motor converts electrical energy to mechanical motion, substituting human physical effort with an electromechanical system that operates more precisely and consistently.
3Device complexity
If a rollable display device lacks a support mechanism, then the device complexity is reduced, but the display panel may return to rolled state during use
Solution Approach 1:
The support assembly anticipates the tendency of the display panel to roll back by providing a counteracting lifting force. The driving unit and lifting unit are designed to preemptively counter the rolling tendency, maintaining the panel in the desired unrolled position before the problem can occur.
Data Source
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AI summary
A rollable display device is disclosed. The rollable display device includes a rollable display panel for displaying an image, a motor performing a rotational motion, a motion converting unit performing a linear motion in a first direction of the rollable display panel in response to the rotational motion of the motor, and a lifting unit configured to lift and lower the rollable display panel in a second direction in response to the linear motion of the motion converting unit.