Source Driver Clock Recovery for Adaptive Display Data Rates
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Solution Overview
Problem
Current display technologies face limitations in data rate compatibility, leading to restricted product application ranges and unnecessary resource waste due to the need for new source drivers when higher data rates are required, increasing costs.
Innovation Solution
A source driver with a control module that calculates frequency values from image data and outputs control signals to a recovery module, which recovers clock signals, enabling adaptive data rate functionality and a wider data rate range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a source driver with a higher data rate is selected, then the data rate capability is improved, but the compatibility with low data rate applications deteriorates and the product application range is limited
Solution Approach 1:
The source driver dynamically adjusts its operating data rate based on the application requirements. The driver can switch between different data rates (e.g., 0.6 Gbps-1.8 Gbps or 1.2 Gbps-3 Gbps) by modifying its internal clock signal frequency and timing parameters, allowing it to adapt to both high-speed and low-speed applications with a single device design.
Solution Approach 2:
The source driver changes its operational parameters including data rate, clock frequency, and timing characteristics to match different application requirements. This parameter adaptability allows the same hardware design to support multiple data rate ranges without requiring separate specialized drivers for each application type.
2Speed
If a new source driver is developed for higher data rates, then the data rate capability is improved, but the resource waste and development costs increase
Solution Approach 1:
The source driver is designed as a universal device that can perform multiple functions across different data rate applications. By integrating adaptive data rate capability into a single driver design, the invention eliminates the need to develop and manufacture separate specialized drivers for different speed requirements, thereby reducing resource waste and development costs.
Solution Approach 2:
The invention merges the functionality of multiple specialized source drivers into a single adaptive device. Instead of having separate drivers for different data rate ranges, the unified design combines all necessary circuitry and control logic into one chip that can operate across the full spectrum of required data rates.
Data Source
AI summary
According to the data driver and the display device provided in the present application, the control module obtains the frequency value of image data according to the image data and outputs the control signal from the plurality of first output terminals according to the frequency value so that the recovery module recovers the clock signal corresponding to the image data under control of the control signal. By outputting the clock signal having corresponding data rate through the frequency value of the image data, an adaptive data rate function can be realized, and a wider data rate range can be realized.