Remote Controller for Display Flicker Adjustment
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Solution Overview
Problem
Public information display systems, such as those using flat panel displays, face challenges in easy monitoring and control, particularly due to their installation in hard-to-reach locations and the occurrence of flicker phenomena caused by non-adjustable common voltage variations, which can lead to malfunction and reduced lifespan.
Innovation Solution
A display system comprising a display device and a remote controller with RF communication capabilities, including a keypad, optical sensor, and temperature sensor, allowing users to monitor and adjust device information, including common voltage, through a digital interface and microcontroller, enabling remote control and flicker adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the display device is suspended from the ceiling to provide unobstructed visibility, then visibility is improved, but ease of adjustment deteriorates
Solution Approach 1:
A remote controller is introduced as an intermediary device between the user and the display device. The remote controller transmits adjustment commands wirelessly to the display device, enabling users to adjust the display without physically accessing it. This resolves the contradiction by maintaining ceiling suspension for visibility while providing easy adjustment through the remote intermediary.
2Productivity
If the display device operates for a long period of time, then productivity is improved, but reliability deteriorates due to flicker phenomenon
Solution Approach 1:
The system incorporates an optical sensor that detects flicker phenomena in real-time and provides feedback to the controller. The controller processes this feedback and automatically adjusts the common voltage to eliminate the flicker. This closed-loop feedback mechanism allows the display to operate continuously while maintaining reliability by preventing malfunction through active flicker compensation.
3Device complexity
If common voltage is made non-adjustable for stable operation, then device complexity is reduced, but reliability deteriorates due to flicker
Solution Approach 1:
The display device performs self-diagnosis and self-adjustment through the optical sensor and controller combination. The optical sensor detects flicker conditions, and the controller automatically adjusts the common voltage without requiring external intervention or complex manual control mechanisms. This self-service approach maintains operational simplicity while achieving reliable flicker prevention through automatic adaptation.
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
Enables easy monitoring and control of display device characteristics, including flicker minimization, extending the lifespan and preventing malfunctions by allowing adjustments from a distance, thus improving operational reliability and user convenience.
Implementation Method 1
a transceiver communicating with remote controller
Implementation Method 2
Remote controller includes an optical sensor that detects a flicker of the display device
Implementation Method 3
a temperature sensor that detects a peripheral temperature
Data Source
AI summary
A display system includes a display device and a remote controller. Remote controller makes RF communication with the display device so as to obtain device information and includes a display panel that displays the device information. Remote controller adjusts the device information and sends the adjusted device information to the display device. In the display system, characteristics of the display device are monitored and adjusted by means of remote controller.