Display Panel Driving Method for Static Image Afterimage Compensation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Display panels face challenges in minimizing power consumption while maintaining display quality, particularly when transitioning from one static image to another, as low frequency driving can result in afterimages.
Innovation Solution
A method and apparatus that determine the number of afterimage compensation frames based on the number of data changed pixels and grayscale value changes between static images, inserting these frames in a low frequency driving cycle to prevent afterimages and optimize power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by stationary object
If the display panel is driven in a relatively low frequency to reduce power consumption, then the power consumption is reduced, but an after image occurs in which a previous image remains
Solution Approach 1:
The patent applies preliminary action by inserting afterimage compensation frames before the harmful afterimage effect fully develops. When a static image is detected, the system calculates compensation frame numbers based on image transition characteristics and inserts intermediate frames to preemptively counteract the afterimage, thereby eliminating the harmful effect while maintaining low frequency driving for power savings.
2Use of energy by stationary object
If the display panel is driven in a relatively low frequency, then the power consumption is reduced, but the display quality deteriorates due to afterimage
Solution Approach 1:
The patent introduces an intermediary solution by inserting afterimage compensation frames as intermediate frames between normal driving frames. These compensation frames act as mediators that bridge the gap caused by low frequency driving, smoothing out the visual transition and eliminating afterimage effects without requiring a return to high frequency driving, thus maintaining both power efficiency and display quality.
Data Source
AI summary
A method of driving a display panel includes determining whether an input data signal represents a moving image or a static image, determining an image transition from a first static image to a second static image when the input data signal represents the static image, determining a number of afterimage compensation frames using data of the first static image and data of the second static image when the image transition occurs and inserting the afterimage compensation frames corresponding to a determined number of the afterimage compensation frames in a single low frequency driving cycle between a first normal frame corresponding to the first static image and a second normal frame corresponding to the second static image.