Dual Timing Controllers for LCD High Resolution
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Solution Overview
Problem
Current liquid crystal display devices face challenges in achieving high resolution due to the limitations of single timing controllers, which become insufficient in processing increased data and are costly to upgrade, necessitating the use of multiple controllers for high-resolution outputs.
Innovation Solution
The implementation of two timing controllers, where one controls scan drivers and the other data drivers, with synchronized data signals and control signals to manage pixel rows, allowing for efficient high-resolution output by distributing data processing across both controllers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single timing controller is used, then the device complexity is low, but the processing speed becomes slower and insufficient for high resolution
Solution Approach 1:
The patent divides the pixel rows into two separate groups, with each timing controller responsible for driving a specific set of data drivers corresponding to different pixel rows. This segmentation allows parallel processing of pixel data, thereby increasing the overall processing speed and enabling high-resolution display without requiring a single complex timing controller to handle all pixels sequentially
2Productivity
If a single timing controller is upgraded to process more data, then the processing capability improves, but the cost becomes expensive
Solution Approach 1:
Instead of upgrading a single timing controller to handle increased data loads, the patent segments the control function across multiple timing controllers, each managing a portion of the pixel rows. This approach distributes the processing burden, allowing the use of standard, cost-effective timing controllers while achieving the required processing capability for high-resolution displays
3Productivity
If multiple timing controllers are used, then the processing capability increases, but the device complexity increases
Solution Approach 1:
The patent implements a segmented architecture where multiple timing controllers operate in parallel, each responsible for specific pixel rows. This segmentation increases processing capability while managing complexity through modular design, where each controller handles a defined subset of the display data independently
Solution Approach 2:
The patent introduces a new dimension of control by organizing timing controllers along the pixel row dimension, with each controller assigned to specific row ranges. This dimensional organization allows systematic management of multiple controllers, distributing the control burden across different spatial dimensions of the display architecture
Data Source
AI summary
The present invention provides a liquid crystal display device (LCD) and display driving method thereof. The LCD includes display panel; scan driver; a plurality of data drivers; first timing controller, for controlling scan driver, receiving and processing first signal, outputting synchronization signal and first driving control signal, the first driving control signal controlling first data driver to drive display of all pixels in a part of pixel rows of n pixel rows; and second timing controller, for receiving synchronization signal and second data signal, processing second data signal, outputting second driving control signal, second driving control signal controlling second data driver to drive display of all pixels in the other part of pixel rows of the n pixel rows. As such, through modifying input and output of two timing controllers, the present invention makes two timing controllers to synchronously support high resolution output of LCD.