Display Device Noise Detection via Feedback Data Comparison
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Solution Overview
Problem
Current display devices using the embedded point-to-point interface (EPI) standard lack a method for detecting noise, leading to potential operational issues due to signal interference, which can result in errors and inefficient power consumption.
Innovation Solution
A display device and driving method that includes a data driving circuit and a controller capable of generating and comparing feedback data to automatically detect noise, allowing for real-time correction of input data and reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the current embedded point-to-point interface (EPI) standard is used for data transmission, then the display device can operate with existing interface protocols, but the device cannot detect or solve noise issues leading to errors and inefficient power consumption
Solution Approach 1:
The patent introduces a feedback mechanism where the data driving circuit generates feedback data based on input data and transmits it back to the controller. The controller compares the original input data with the feedback data to detect noise-induced errors. This feedback loop enables automatic noise detection and correction without requiring complete interface redesign, resolving the contradiction between reliability improvement and device complexity.
2Reliability
If noise detection and correction mechanisms are implemented, then the reliability of data transmission is improved, but the complexity of the data driving circuit and controller increases
Solution Approach 1:
The data driving circuit performs self-diagnosis by generating feedback data from the input data and comparing it with the original input data at the controller. This self-service mechanism allows the system to automatically detect and identify noise errors without external intervention or complex additional detection circuits, thereby improving reliability while minimizing the increase in device complexity.
Solution Approach 2:
The patent creates a copy of the input data through feedback data generation. The data driving circuit processes the input data to generate feedback data, which is then transmitted back to the controller. This copying approach enables error detection through comparison without requiring complex direct monitoring circuits, thus improving data transmission accuracy while keeping the circuit structure relatively simple.
3Reliability
If continuous noise monitoring is performed through feedback data comparison, then noise can be detected in real time, but power consumption increases
Solution Approach 1:
The feedback data generation and comparison process operates continuously during normal data transmission without requiring separate monitoring phases. The useful action of data processing is maintained continuously while simultaneously performing noise detection through feedback comparison, enabling real-time noise detection without significant additional power consumption beyond the normal data transmission power.
Data Source
AI summary
Embodiments of the present disclosure relate to a display device and a driving method. A data driving circuit transmits feedback data generated on the basis of input data to a controller, and the controller generates corrected data by comparing the input data and the feedback data. It is possible to automatically detect noise, and it is possible to detect noise in real time.