Angle-Cutting Circuit Voltage Accuracy Compensation
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Solution Overview
Problem
Conventional angle-cutting technologies for display panels suffer from accuracy issues due to comparator delays, resulting in a lower limit value of angle-cutting voltage that is less than the preset value, which deteriorates product performance.
Innovation Solution
An angle-cutting circuit comprising an angle-cutting chip, a comparison module, and an adjustment module, where the comparison module compares the output voltage from the chip to a threshold voltage, and when it is less than the threshold, a control signal is generated to raise the lower limit value of the angle-cutting voltage, using N-type MOS transistors and resistors to adjust the voltage accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a comparator is used in the angle-cutting means, then the angle-cutting function can be implemented, but the comparator delay period causes the actual lower limit value of angle-cutting voltage to be less than the preset value, deteriorating accuracy
Solution Approach 1:
The patent applies preliminary action by proactively increasing the lower limit value of angle-cutting voltage before the comparator delay can cause inaccuracies. The adjustment module detects the comparator delay effect and preemptively raises the voltage threshold to compensate for the delay period, ensuring the angle-cutting voltage remains accurate despite the inherent comparator delay.
Solution Approach 2:
The patent implements feedback through the adjustment module that monitors the angle-cutting voltage and compares it against the preset threshold. When the voltage approaches the threshold, the adjustment module provides feedback control to raise the lower limit value, creating a closed-loop system that compensates for comparator delay and maintains measurement precision.
2Reliability
If the lower limit value of angle-cutting voltage is preset, then the angle-cutting function can be controlled, but the comparator delay causes the actual value to differ from the preset value, reducing product performance
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the lower limit value of angle-cutting voltage based on detected conditions. The adjustment module changes the voltage parameter from a fixed preset value to a dynamically raised value that compensates for comparator delay, ensuring reliable product performance while maintaining measurement precision.
Data Source
AI summary
The present application discloses a display panel and an angle-cutting circuit. The angle-cutting circuit includes the angle-cutting chip, the comparison module and the adjustment module, the adjustment module is coupled to the angle-cutting chip and the comparison module; the output terminal of the angle-cutting chip is used to output the angle-cutting voltage, the first input terminal of the comparison module is coupled to the output terminal of the angle-cutting chip to obtain the first voltage; the first voltage is compared to the preset threshold voltage in the comparison module, when the first voltage is less than the threshold voltage, a control signal is generated from the comparison module, and the lower limit value of the angle-cutting voltage is raised by the adjustment module according to the control signal. By the technology described above, the accuracy of angle-cutting voltage of the present application is increased, and improve product performance.