Display Panel Driving Voltage Control for Flicker Noise Reduction
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Solution Overview
Problem
The existing driving technologies for display panels amplify noise in image signals, leading to flicker noise that can be perceived by human eyes, which degrades the image display quality.
Innovation Solution
A method and device for driving display panels that involve obtaining image data from current and previous frames, determining data differences in luminous characteristic values, and prohibiting amplification of driving voltage when image noise is detected to prevent flicker noise, thereby improving image display quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the Over Drive (OD) function is enabled to improve response speed, then the response speed is improved, but the original noise in the image signal is amplified causing flicker noise
Solution Approach 1:
The patent applies preliminary action by comparing the current frame image data with the previous frame image data before processing the image signal through the OD function. By提前 (in advance) detecting noise in the current frame through comparison with the previous frame, the system can identify noisy frames before they are amplified by the OD function, allowing for selective processing to prevent flicker noise while maintaining response speed improvement.
2Speed
If the OD function is enabled to improve image display quality, then the response speed is improved, but image noise is amplified resulting in flicker noise that degrades image display quality
Solution Approach 1:
The patent implements feedback by continuously comparing current frame image data with previous frame image data to detect noise. This feedback mechanism allows the system to monitor the quality of image data in real-time and adjust processing accordingly. When noise is detected through the comparison feedback, the system can selectively apply or suppress the OD function to maintain both response speed and image display quality.
Data Source
AI summary
Disclosed is a method for driving a display panel of obtaining image data of a current image frame and a previous image frame, and prohibiting amplification of a driving voltage on condition that an image noise exists in the current image frame. Disclosed further are a display panel and a device for controlling and driving the display panel.