Display Panel Link Training for Stable Set Value Transfer
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Solution Overview
Problem
Conventional data driving apparatuses face challenges in efficiently transferring set values due to increased pixel density and frame rates in high-resolution display panels, leading to larger IC chip sizes and complex external wirings, as well as vulnerability to noise in high-speed data communication.
Innovation Solution
A data driving apparatus that includes a data receiving part for training a communication clock and converting image data into grayscale data for each sub-pixel, using link data with varying cycles and information about operation modes, LRLC, MRL, and communication line configurations to stabilize and efficiently transfer set values.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sensing set values through specific terminal is used, then set values can be obtained, but the size of data driving apparatus increases and external wirings become complex
Solution Approach 1:
The patent extracts the set value transmission function from external terminals and wirings, moving it into the data communication channel. Configuration data is transmitted through the existing data communication interface between data processing apparatus and data driving apparatus, eliminating the need for separate sensing terminals and external wiring connections.
Solution Approach 2:
The data communication interface is made multi-functional by using it for both image data transmission and configuration data transmission. The same communication channel serves multiple purposes, reducing the need for dedicated terminals and simplifying the overall system architecture.
2Productivity
If data communication speed is increased for high resolution, then image data transmission efficiency is improved, but vulnerability to noise increases
Solution Approach 1:
The patent performs preliminary action by transmitting configuration data including error correction codes before image data transmission. The data driving apparatus is pre-configured with the necessary parameters and error correction mechanisms, enabling it to handle high-speed data communication more reliably by correcting noise-induced errors as they occur.
3Productivity
If the number of pixels and frame rate are increased, then display resolution and refresh performance are improved, but the amount of image data increases
Solution Approach 1:
The patent applies parameter changes by implementing data compression techniques and optimizing data transmission parameters. Configuration data includes settings for run-length encoding (LRLC, MRL) and other compression methods that reduce the effective data volume while maintaining display quality, allowing high-resolution high-frame-rate operation without proportionally increasing data transmission burden.
Data Source
AI summary
The present disclosure provides a technology indicating information different from each other by patterns of link data in a process of training links performed prior to transmitting image data.