Display Voltage Adjustment by Grayscale Polarity for Power and Flicker Control
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Solution Overview
Problem
Display panels with large sizes, high refresh rates, and high resolutions face excessive power consumption and screen flickering issues, necessitating a solution to reduce power consumption while maintaining image performance.
Innovation Solution
A method and display system that dynamically adjusts the voltage value of a second power supply voltage based on the polarity of display data, determining grayscale extreme values to avoid image flicker and reduce energy consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the display panel operates with large size, high refresh rate and high resolution, then the image performance is improved, but the power consumption increases excessively
Solution Approach 1:
The patent implements dynamic voltage adjustment by determining grayscale extreme values for each frame and adaptively modifying the second power supply voltage based on these extreme values. The voltage value dynamically changes according to the actual display content, transitioning from static to dynamic operation to reduce unnecessary power consumption while maintaining image quality.
Solution Approach 2:
The patent changes the voltage parameter (second power supply voltage) based on grayscale extreme values extracted from display data. By adjusting the voltage parameter adaptively according to content requirements, the system achieves optimal balance between power consumption and image performance.
2Use of energy by moving object
If the voltage value is adjusted to reduce power consumption, then the energy consumption is reduced, but the screen may flicker
Solution Approach 1:
The patent applies preliminary anti-action by compensating for potential flicker effects through adaptive voltage adjustment. By proactively modifying the voltage based on grayscale extreme values before display output, the system prevents flicker from occurring while still achieving power reduction, rather than merely reacting to flicker after it appears.
Solution Approach 2:
The patent employs feedback mechanisms by continuously monitoring grayscale extreme values in display data and adjusting the second power supply voltage accordingly. This closed-loop control ensures that voltage adjustments maintain image stability while achieving power savings, preventing flicker through real-time adaptation.
Data Source
AI summary
The disclosure relates to a method of driving a display and the display, wherein the driving method includes: determining a grayscale extreme value corresponding to a polarity of display data of a target frame image according to the polarity; adjusting a voltage value of a first power supply voltage of the display according to the grayscale extreme value to obtain a voltage value of a second power supply voltage; and driving the display for displaying according to the voltage value of the second power supply voltage and the display data of the target frame image.