Liquid Crystal Display Voltage Adjustment for Transmittance Optimization
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Solution Overview
Problem
As the resolution of liquid crystal displays increases, their transmittance decreases, and existing methods to enhance transmittance, such as reducing black matrix regions or using anti-reflection films, are not sufficient to maintain optimal brightness without altering the display's structure.
Innovation Solution
A method and device that adjust the voltage applied by the source circuit of a liquid crystal display by measuring transmittance at different voltage values, determining a critical voltage for maximum transmittance, and setting the operating voltage to this critical value to optimize transmittance without structural changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the resolution of liquid crystal display is increased, then the pixel density increases, but the transmittance decreases
Solution Approach 1:
The patent changes the voltage parameter applied to the liquid crystal display to optimize transmittance. By adjusting the voltage to a critical value, the liquid crystal molecules reorient to improve light transmission without changing the physical structure or pixel density of the display.
2Illumination intensity
If conventional methods such as reducing black matrix regions or using anti-reflection films are applied, then transmittance increases, but structural modifications are required
Solution Approach 1:
Instead of modifying the physical structure of the display (such as reducing black matrix regions or adding anti-reflection films), the patent changes the electrical parameter (voltage) to achieve transmittance improvement. This avoids increasing device complexity while maintaining or enhancing optical performance.
3Illumination intensity
If voltage is increased to improve transmittance, then brightness increases, but energy consumption increases
Solution Approach 1:
The patent optimizes the voltage parameter to a critical value that achieves maximum transmittance and brightness while minimizing energy consumption. By precisely tuning the voltage rather than continuously increasing it, the system finds the optimal operating point that balances brightness output with energy input.
Solution Approach 2:
The patent employs a feedback mechanism where transmittance is measured at different voltage values, and the critical voltage corresponding to maximum transmittance is determined. This feedback loop allows the system to automatically adjust to the optimal voltage level, ensuring maximum brightness efficiency without excessive energy consumption.
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
This approach increases the transmittance and brightness of the liquid crystal display without modifying its structure, thereby improving display quality and maintaining optimal image presentation.
Implementation Method 1
changing a voltage applied by a source circuit of the liquid crystal display, and measuring transmittance of the liquid crystal display at different values of the applied voltage
Data Source
AI summary
A method for adjusting a liquid crystal display, includes: changing a voltage applied by a source circuit of the liquid crystal display, and measuring transmittance of the liquid crystal display at different values of the applied voltage; determining, according to a corresponding relationship between the applied voltage and the measured transmittance, a critical applied voltage that corresponds to a maximum measured transmittance of the liquid crystal display; and determining an operating voltage of the source circuit according to the critical applied voltage, and adjusting the applied voltage to the operating voltage.