Display Panel Row Group Segmentation for Data Transmission
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Solution Overview
Problem
As display panel resolutions increase, the high refresh frequency leads to a large amount of image data needing to be transmitted, often resulting in insufficient data transmission rates, causing image lagging issues.
Innovation Solution
The display panel is divided into N row groups, with only display data from one row group transmitted during odd-numbered image frames and another row group during even-numbered frames, using a weighting formula to determine pixel group data, reducing data size and improving transmission efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If display panel resolution and refresh frequency are increased, then display quality is improved, but data transmission size increases causing image lagging
Solution Approach 1:
The patent divides the display panel into multiple row groups (first row group, second row group, etc.), where each row group contains pixels spaced by N-1 rows. The data transmission is segmented by transmitting display data from only one row group per frame, alternating between different row groups for different frames. This segmentation reduces the data transmission size by a factor of N while maintaining display quality through the alternating transmission mechanism.
2Loss of information
If all pixel data is transmitted in each frame, then complete image information is maintained, but data transmission rate becomes insufficient
Solution Approach 1:
The patent implements periodic action by alternating the transmission of display data from different row groups across consecutive frames. For odd-numbered frames, data from one row group is transmitted, and for even-numbered frames, data from another row group is transmitted. This periodic transmission pattern ensures that all pixel data is eventually transmitted while reducing the instantaneous data transmission rate requirement by a factor of N.
3Quantity of substance
If display data from all row groups is transmitted simultaneously, then complete data is provided, but transmission time increases
Solution Approach 1:
The patent segments the data transmission process by dividing pixels into N row groups and transmitting data from only one row group per frame. This segmentation reduces the data volume transmitted in each frame by a factor of N, thereby reducing transmission time while maintaining complete image information through sequential transmission across multiple frames.
Data Source
AI summary
The present disclosure discloses a driving method and apparatus of a display panel. When the display panel is driven to display a (2k−1)th image, only display data, corresponding to pixels of one row group, in image data of a kth display frame of a plurality of display frames are transmitted to a driver chip in the display panel, and a data size transmitted may be reduced. When the display panel is driven to display a (2k)th image, display data, corresponding to pixels of another row group, in the image data of the kth display frame are transmitted to the driver chip in the display panel, and the data size transmitted may also be reduced.