Display Panel Correction Circuit for Floating Data Signal Lines
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Solution Overview
Problem
In a display panel, when a data signal line is disconnected, gray scale control of a subpixel connected to an electrically floating data signal line cannot be performed.
Innovation Solution
A display device with a correction circuit that allows electrical conduction between two data signal lines to correct the floating potential of a disconnected data signal line, enabling gray scale control by charging it from a connected line.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a data signal line is disconnected, then the subpixel connected to that line cannot be controlled, but adding a correction circuit increases device complexity
Solution Approach 1:
The correction circuit acts as an intermediary between the first data signal line and the second data signal line. When the second data signal line is disconnected, the correction circuit provides an alternative electrical path through the first data signal line, allowing the floating potential to be corrected and gray scale control to be restored without requiring complex redesign of the entire display system
Solution Approach 2:
The correction circuit is designed to serve multiple functions: it operates normally when data signal lines are connected and only activates its potential correction function when a disconnection is detected. This multi-functionality allows a single circuit component to handle both normal operation and fault correction, reducing the need for additional dedicated fault handling circuits
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables effective gray scale control of subpixels connected to floating data signal lines, ensuring proper display performance even in cases of disconnection.
Implementation Method 1
the correction circuit allows electrical conduction between the first data signal line and the second data signal line to correct the floating potential
Data Source
AI summary
A first data signal line connected to one of two subpixels that emit light of the same color, a second data signal line connected to the other of the two subpixels, and a correction circuit electrically connected to the first data signal line and the second data signal line are included. When the second data signal line is at a floating potential, the correction circuit allows electrical conduction between the first data signal line and the second data signal line to correct the floating potential.