LCD Burning System Using Optic-Electric Transformer for Flicker Control
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Solution Overview
Problem
The existing burning system for LCDs relies on manual adjustment and observation to eliminate optical flicker, which is inefficient and prone to inaccuracies, affecting the reliability of the common voltage setting.
Innovation Solution
A burning system incorporating an optic-electric transformer, comparator circuit, and micro-controller unit that measures optical flicker, automatically adjusts the common voltage, and burns the optimal voltage parameter into the LCD's EPROM, eliminating the need for manual intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual adjustment and observation is used to eliminate optical flicker, then the burning system can operate with simple equipment, but the process is inefficient and prone to inaccuracies
Solution Approach 1:
The patent replaces manual mechanical adjustment and observation with an automated optical measurement system. The optic-electric transformer converts optical flicker into electrical signals, and the comparator circuit automatically compares these signals against a reference, eliminating the need for manual visual assessment and adjustment while improving measurement precision.
Solution Approach 2:
The patent introduces an intermediary measurement system between the optical display and the control mechanism. The optic-electric transformer acts as a mediator that converts optical fluctuations into electrical signals, which are then processed by the comparator circuit to automatically determine the optimal common voltage, removing the need for direct manual observation.
2Reliability
If manual adjustment is used to determine optimal common voltage, then the equipment remains simple, but the burning process becomes time-consuming and less reliable
Solution Approach 1:
The patent implements a feedback mechanism where the optic-electric transformer continuously monitors optical flicker and feeds this information to the comparator circuit. The comparator circuit compares the measured optical characteristics against a reference and provides feedback signals to the micro-controller, which automatically adjusts the common voltage until optimal performance is achieved, ensuring high reliability and reducing time loss.
Solution Approach 2:
The burning system performs self-service by automatically measuring optical flicker, comparing it against reference values, and adjusting the common voltage without external manual intervention. The system self-determines the optimal voltage parameters and burns them into the LCD's EPROM, eliminating the need for operator involvement and improving both reliability and efficiency.
3Productivity
If automated measurement and adjustment is implemented, then burning efficiency and accuracy improve, but the device complexity increases
Solution Approach 1:
The patent designs the burning system with multi-functional components that perform multiple tasks. The optic-electric transformer not only measures optical flicker but also converts it into electrical signals for processing. The comparator circuit simultaneously compares optical measurements against reference values and generates control signals. This universal approach improves burning efficiency while limiting the increase in overall system complexity through component multi-functionality.
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 system efficiently and accurately determines the optimal common voltage, reducing optical flicker and enhancing the reliability of the LCD's operation by automating the adjustment process.
Implementation Method 1
an optic-electric transformer configured for measuring optical flicker of a liquid crystal display, and transforming the measurement into a corresponding flicker signal
Data Source
AI summary
An exemplary burning system (600) for a liquid crystal display (670) includes an optic-electric transformer (610), a comparator circuit (650), and a micro-controller unit (660). The optic-electric transformer is configured for measuring optical flicker of a liquid crystal display, and transforming the measurement into a corresponding flicker signal. The comparator circuit is configured for receiving the flicker signal, comparing a voltage of the flicker signal to a reference voltage, determining whether optical flicker of the liquid crystal display is acceptable or nonexistent based on the comparison, and determining a parameter representing an optimum common voltage of the liquid crystal display when the optical flicker of the liquid crystal display is acceptable or nonexistent. The micro-controller unit is configured for burning the parameter into the liquid crystal display. A related method for burning a liquid crystal display is also provided.