Multi-Area Display Driving via Intermediate Controllers
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The current display driving device architecture requires a separate timing controller for each display area, leading to high overall layout costs.
Innovation Solution
A display driving device utilizing a plurality of drivers and an intermediate controller with lower signal processing capability than the timing controller to parse and transmit display signals to multiple display areas, reducing the need for timing controllers and minimizing layout size and cost.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate timing controller is used for each display area, then the pixel driving capability is ensured, but the device cost and layout size increase excessively
Solution Approach 1:
The patent divides the timing control function into two parts: a central timing controller that performs signal generation and enhancement, and multiple intermediate controllers that handle signal distribution and addressing. This segmentation allows one timing controller to serve multiple display areas while maintaining full pixel driving capability through the coordinated work of the intermediate controllers.
Solution Approach 2:
The intermediate controller acts as an intermediary between the central timing controller and the pixel drivers. It receives the addressed display signal, parses the address information, and routes the signal to the appropriate drivers, thereby enabling one timing controller to control multiple display areas without compromising driving capability.
2Adaptability or versatility
If a separate timing controller is used for each display area, then the signal processing capability is sufficient, but the layout cost increases
Solution Approach 1:
The intermediate controller is designed with multi-functionality to handle multiple tasks: receiving signals from the timing controller, parsing address information, routing signals to appropriate drivers, and managing multiple display areas. This universal design reduces the total number of controllers needed while maintaining sufficient signal processing capability across all display areas.
Solution Approach 2:
Instead of replicating full timing controllers for each display area, the system uses a central timing controller that generates signals once, then uses intermediate controllers to copy and distribute these signals to multiple display areas. This copying approach maintains signal processing capability while significantly reducing the quantity of high-cost timing controllers required.
3Device complexity
If the intermediate controller has lower signal processing capability, then the device cost is reduced, but the signal processing capacity must be distributed efficiently
Solution Approach 1:
The central timing controller performs preliminary signal generation and enhancement before distributing signals to intermediate controllers. This preliminary action ensures that the more complex processing is done once by the capable timing controller, while the lower-capability intermediate controllers only need to perform simpler tasks like address parsing and signal routing, thereby maintaining overall processing efficiency.
Solution Approach 2:
The system implements feedback mechanisms where the intermediate controller receives control signals from the timing controller and can report status information. This feedback loop ensures that even with lower signal processing capability, the intermediate controller can efficiently manage signal distribution by receiving real-time instructions and adjustments from the central timing controller.
Data Source
AI summary
A display driving device, applicable for at least one display area, includes a plurality of drivers, at least one timing controller and at least one intermediate controller. The intermediate controller is connected to the at least one timing controller and the plurality of drivers. The drivers are configured to drive a plurality of pixels in at least one display area, respectively. The at least one timing controller is configured to obtain the first addressing display signal of the pixels, and generate a second addressing display signal according to the first addressing display signal. The intermediate controller is configured to transmit at least a portion of the second addressing display signal to the drivers to drive the at least one display area according to a plurality of address information in the second addressing display signal. The signal processing capability of the repeater is lower than that of the timing controller.