Driver Circuit Error Detection for Display Noise Prevention
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Display devices often fail to restore correct data when errors occur, leading to the display of a snowflake image (noise image), which affects user experience.
Innovation Solution
A driver circuit with a detector circuit and an outputting circuit is used to detect errors and change the enable signal from a first level to a second level, causing the control circuit to stop outputting control signals to the pixels, thereby preventing the display of incorrect data and maintaining a comfortable user experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the control circuit continues to output control signals to pixels when an error occurs, then the display device can maintain continuous operation, but the display device will display snowflake images (noise images) which degrades image quality
Solution Approach 1:
The detector circuit continuously monitors the input signal before it reaches the decoder, and when an error is detected, it proactively generates an enable signal to stop the control circuit from outputting control signals. This preliminary anti-action prevents the error from propagating to the pixels, thereby avoiding snowflake image display while maintaining system reliability
Solution Approach 2:
The detector circuit and enable signal act as an intermediary between the input signal and the control circuit. When an error is detected, the enable signal mediates by blocking the control signals from reaching the pixels, thus preventing the harmful effect of snowflake images without completely stopping the display operation
2Object-affected harmful factors
If the control circuit stops outputting control signals to pixels when an error occurs, then snowflake image display is prevented, but the display operation is interrupted
Solution Approach 1:
The system performs preliminary error detection before the error can affect the pixel display. By detecting errors in advance and stopping control signal output proactively, the system prevents snowflake images from appearing while minimizing the duration of operation interruption, as the stoppage only occurs after error detection rather than waiting for visible degradation
3Loss of information
If the decoder attempts to restore correct data when an error occurs, then data accuracy may be improved, but the system complexity increases and restoration may not always succeed
Solution Approach 1:
The invention extracts the error handling function from the decoder by introducing a separate detector circuit. This separation removes the complex data restoration task from the decoder, simplifying its function while maintaining effective error prevention through the dedicated detector that monitors and controls signal flow independently
Data Source
AI summary
A driver circuit is coupled to a control circuit which is configured to control a plurality of pixels. The driver circuit includes a detector circuit and an outputting circuit. The detector circuit is configured to detect whether an error occurs or not. The outputting circuit is configured to output an enable signal to the control circuit. When the error occurs, the enable signal changes from a first level to a second level such that the control circuit stops outputting a plurality of control signals to the plurality of pixels.