Rollable Display Mechanism With Spring-Assisted Flat Panel Unwinding
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Solution Overview
Problem
Existing display devices require significant force to roll up and down, which can lead to mechanical stress and inefficiency, and often result in the display panel hanging down during the rolling process, compromising its flatness and user immersion.
Innovation Solution
A display device design that incorporates a spring portion to reduce the force required for rolling, using a panel roller with a seat portion to securely hold the PCB and a motor assembly that transmits rotational energy through a decelerator, allowing the display panel to roll up and down without hanging, maintaining a flat surface for user immersion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a motor assembly is used to roll the display panel, then the display panel can be rolled up and down, but significant force is required which causes mechanical stress and inefficiency
Solution Approach 1:
The spring portion acts as a counterweight mechanism that stores elastic potential energy when compressed during panel rolling, then releases this energy to assist the motor assembly in unrolling the panel, thereby reducing the force required from the motor and eliminating the need for heavy-duty motors
2Productivity
If significant force is applied to roll the display panel, then the panel can be rolled, but mechanical stress increases causing inefficiency and potential damage
Solution Approach 1:
The spring portion provides beforehand cushioning by being pre-compressed to store elastic energy that cushions and assists the rolling operation, reducing peak forces and mechanical stress on the display panel during both rolling and unrolling operations
3Device complexity
If the display panel is rolled without proper support, then the rolling mechanism is simpler, but the panel hangs down from the roller compromising flatness
Solution Approach 1:
The seat portion acts as an intermediary support structure between the roller and the PCB, providing proper support during rolling operations to prevent the panel from hanging down while maintaining a relatively simple rolling mechanism without complex support systems
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 design reduces the mechanical stress on the display panel, allows for efficient rolling without hanging, and enhances user immersion by maintaining a flat surface, while also minimizing the size of the motor and housing required.
Implementation Method 1
a spring portion configured to push the transmission portion
Data Source
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AI summary
A display device is disclosed. The display device includes: a housing; at least one roller configured to be positioned within the housing; a display portion including a display panel and a module cover; and an operating portion configured to be attached to one end of the display portion and to change the display portion's state, wherein the display panel and the module cover are either in a first state where the display panel and the module cover are kept wound around the at least one roller or in a second state where the display panel and the module cover are kept unwound from the at least one roller, in contact with each other, and exposed out of the housing, and wherein the operating portion includes: a motor assembly; a support, one end of which is connected to one end of the display portion and the other end is connected to the motor assembly; a transmission portion, one end of which is connected to the support; and an auxiliary link configured to be attached to the bottom of the housing and connected to the other end of the transmission portion, the auxiliary link including a spring portion inside configured to push the transmission portion. The display device allows for less force for a motor by using a spring portion to push a transmission portion.