Scan Driving Unit Correction Circuit for Clock Signal Abnormalities
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Solution Overview
Problem
Conventional display devices lack the ability to detect and correct abnormalities in the on/off-clock signals generated by the timing control unit, leading to abnormal operations of the scan driving unit and subsequent display of abnormal images.
Innovation Solution
Incorporating a correction circuit unit within the scan driving unit to detect abnormalities in the on/off-clock signals and correct them, ensuring normal signal output and preventing display panel malfunctions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional scan driving unit is used without a correction circuit, then the device complexity is low, but the reliability of the display device deteriorates when clock signal abnormalities occur
Solution Approach 1:
The correction circuit unit performs preliminary detection and correction of clock signal abnormalities before they propagate to the scan driving unit and display panel. By detecting missing or abnormal clock signals in advance and generating corrected clock signals, the system prevents abnormal image display without requiring complex external monitoring equipment.
Solution Approach 2:
The scan driving unit incorporates the correction circuit unit within itself, enabling the system to self-diagnose and self-correct clock signal abnormalities. The correction circuit unit monitors its own input clock signals and automatically generates corrected clock signals when abnormalities are detected, eliminating the need for external correction systems.
2Reliability
If the timing control unit generates abnormal on/off-clock signals, then the scan driving unit operates abnormally and displays abnormal images, but there is no built-in mechanism to detect or correct such abnormalities
Solution Approach 1:
The correction circuit unit implements a feedback mechanism by continuously monitoring the clock signals received from the timing control unit and comparing them against expected patterns. When abnormalities such as missing clock cycles are detected, the correction circuit generates feedback signals to correct the timing and restore proper signal integrity before the signals reach the scan driving unit.
Solution Approach 2:
The correction circuit unit performs preliminary detection and correction of clock signal abnormalities before they propagate to the scan driving unit and display panel. By detecting missing or abnormal clock signals in advance and generating corrected clock signals, the system prevents abnormal image display without requiring complex external monitoring equipment.
Data Source
AI summary
Disclosed is a display device and a method of driving the display device. The display device includes a display panel, a scan driving unit, and a timing control unit. The display panel displays an image. The scan driving unit supplies a scan signal to the display panel. The timing control unit controls the scan driving unit. The scan driving unit includes a correction circuit unit that detects whether a clock signal output by the timing control unit is normal or abnormal, and corrects the detected abnormality.