Rotatable Display with IR Speed Feedback for Blur Reduction
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Solution Overview
Problem
Rotatable display apparatuses experience severe image blur due to changes in rotational speed of the motor, leading to reduced image visibility and quality.
Innovation Solution
A display apparatus with a motor, rotation plate, light source bars, and infrared (IR) output and receiving devices to detect changes in rotational speed, adjusting the turn-on period of light sources based on IR signals to reduce image blur.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the motor rotational speed is increased to improve image display speed, then productivity is improved, but image blur increases due to speed changes
Solution Approach 1:
The light source turn-on period is dynamically adjusted based on the motor's rotational speed. When the motor speed changes, the control device modifies the duration that light sources remain active to compensate for speed variations, ensuring that image points remain sharp and clear even at higher display speeds
Solution Approach 2:
The system uses infrared sensors to detect the motor's rotational speed in real-time and feeds this information back to the control device. Based on this feedback, the control device adjusts the light source turn-on period to maintain optimal image quality across varying speeds
2Illumination intensity
If the light source turn-on period is extended to improve image visibility, then illumination intensity is improved, but image blur increases due to motor speed changes
Solution Approach 1:
The light source turn-on period is made dynamic rather than fixed. The control device continuously adjusts the turn-on duration based on detected motor speed, extending it when speed decreases and reducing it when speed increases, thereby maintaining both visibility and sharpness under varying operating conditions
Solution Approach 2:
The system changes the temporal parameter (turn-on period duration) of the light sources in response to motor speed variations. This parameter adjustment ensures that the light exposure time is optimized for each speed condition, preventing blur while maintaining adequate illumination
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 apparatus effectively reduces image blur by dynamically adjusting light source turn-on periods in response to motor speed changes, maintaining image clarity and quality.
Implementation Method 1
a first infrared (IR) output device and a second IR output device disposed on the fixed plate and spaced apart from each other; and a first IR receiving device and a second IR receiving device disposed on the rotation plate and configured to receive infrared (IR) signals respectively output from the first IR output device and the second IR output device
Data Source
AI summary
A display apparatus is disclosed. The display apparatus according to an embodiment of the present disclosure includes: a case; a motor disposed in the case; a rotation plate rotated by the motor; a plurality of light source bars disposed on the rotation plate, and including a plurality of light sources vertically arranged; a fixed plate spaced below the rotation plate; a first and a second infrared (IR) output device disposed on the fixed plate; and a first and a second IR receiving device disposed on the rotation plate. Accordingly, a rotatable display apparatus, capable of reducing image blur during image display based on an afterimage, may be implemented.