LCD Panel Timing Controller Edge Video Data Processing
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Solution Overview
Problem
Liquid crystal display panels face suboptimal image processing at the boundaries of display sub-areas due to inadequate handling of image processing algorithms by timing controllers, which results in unsatisfactory display effects.
Innovation Solution
A liquid crystal display panel design where a system on chip transmits edge video data to timing controllers via a V-by-one interface during the vertical blanking interval, allowing these controllers to process edge video data from adjacent display sub-areas, thereby enhancing image processing algorithms' effectiveness at boundaries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If each timing controller only processes data in its corresponding display sub-area, then the device complexity is reduced, but the image processing quality at boundaries deteriorates
Solution Approach 1:
The patent divides the display area into multiple display sub-areas, each with its own timing controller. However, it also segments the data flow by separating edge video data from normal video data, allowing selective cross-boundary data processing without requiring full data sharing between all controllers.
Solution Approach 2:
The timing controllers are designed with multi-functionality: they can process both their own local display sub-area data and adjacent display sub-area edge data. This universal capability allows a single timing controller architecture to handle multiple processing scenarios without requiring additional specialized hardware.
2Manufacturing precision
If timing controllers process edge video data from adjacent display sub-areas, then the image processing quality at boundaries is improved, but the loss of information is reduced
Solution Approach 1:
The system performs preliminary action by transmitting edge video data from adjacent display sub-areas to timing controllers in advance, specifically during the vertical blanking interval before the active display period begins. This ensures that all necessary data is available when processing is needed, eliminating information loss at boundaries.
Solution Approach 2:
The patent introduces an intermediary data transmission mechanism that facilitates the transfer of edge video data between display sub-areas and timing controllers. This intermediary system uses the V-by-One interface to mediate data flow, ensuring that edge data from adjacent sub-areas reaches the appropriate timing controllers without loss.
3Manufacturing precision
If edge video data is transmitted during the vertical blanking interval, then the display effect at boundaries is improved, but the loss of time for data transmission is minimized
Solution Approach 1:
The system uses periodic action by transmitting edge video data during the vertical blanking interval, which occurs periodically between frame displays. This periodic transmission window allows data to be transferred without interfering with the continuous active display periods, maintaining both display quality and time efficiency.
Solution Approach 2:
The patent maintains continuity of useful action by utilizing the vertical blanking interval—a previously idle period—for data transmission. This transforms wasted time into productive data transfer time, ensuring that edge video data is transmitted without extending the overall frame period or reducing active display time.
Data Source
AI summary
Disclosed is a liquid crystal display panel, including a non-display area and a display area, wherein the non-display area is provided with a system on chip, and the display area includes at least two display sub-areas, and each display sub-area is provided with a corresponding timing controller; the system on chip is electrically connected to each timing controller, and sends edge video data displayed in an edge area of an adjacent display sub-area to each timing controller, and the timing controller receives and processes the edge video data; the adjacent display sub-area is a display sub-area next to the display sub-area corresponding to the timing controller The timing controller can acquire and process the edge video data displayed in the edge area of the adjacent display sub-area, so that the image processing algorithms have better processing effects on the images at the boundary of the display sub-areas.