LCD Panel Sub-Pixel Arrangement for Voltage Stability
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Solution Overview
Problem
The existing LCD panel designs with a tri-gate pixel configuration experience deteriorated display quality due to voltage deviations caused by coupling effects during the transition of data line voltages, leading to adverse effects on sub-pixel voltage levels and frame quality.
Innovation Solution
The LCD panel incorporates a specific arrangement of gate lines and data lines, where each basic arrangement group includes six gate lines and four data lines, with careful connection of sub-pixels to prevent simultaneous changes in adjacent data line voltages, thereby maintaining a stable common voltage and reducing coupling effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a tri-gate pixel configuration is used to reduce the number of data lines, then the fabricating cost is reduced, but the display quality deteriorates due to voltage deviations from coupling effects
Solution Approach 1:
The pixel array is divided into multiple pixel groups, where each group contains multiple pixels sharing common gate lines and data lines. This segmentation allows independent voltage control within each group, preventing the coupling effects that cause display quality deterioration while maintaining the reduced data line structure.
Solution Approach 2:
Different pixel groups are assigned different gate line connections and data line polarities. Specifically, odd-numbered and even-numbered pixel groups have opposite polarity assignments on their data lines, creating localized voltage control that prevents the common voltage deviation caused by simultaneous voltage changes across the entire display.
2Use of energy by moving object
If column inversion driving method is used to enhance display quality and reduce power consumption, then power consumption is reduced, but coupling effects cause common voltage deviation during data line voltage transitions
Solution Approach 1:
The display is divided into pixel groups that can be driven independently. During column inversion driving, only specific pixel groups undergo voltage transitions at any given time, segmenting the voltage change events and preventing simultaneous transitions that cause common voltage deviation.
Solution Approach 2:
The patent pre-assigns opposite polarities to adjacent pixel groups and coordinates their driving timing so that when one group transitions to a new voltage state, the other group maintains its state or transitions in the opposite direction. This preliminary arrangement of opposite polarities creates a counterbalancing effect that prevents common voltage deviation.
3Use of energy by moving object
If adjacent data lines are driven with opposite polarities to reduce power consumption, then power consumption is reduced, but voltage transitions cause coupling effects that adversely affect sub-pixel voltage levels
Solution Approach 1:
The display is segmented into pixel groups with opposite polarity assignments. This segmentation ensures that voltage transitions occur in a coordinated manner across groups, preventing the coupling effects from adversely affecting sub-pixel voltage levels while maintaining the power-saving opposite polarity driving scheme.
Solution Approach 2:
Each pixel group has locally optimized polarity assignments and gate line connections. The odd and even pixel groups have complementary configurations, creating localized voltage control that prevents the propagation of coupling effects across the entire display, thereby maintaining accurate sub-pixel voltage levels.
Data Source
AI summary
A LCD panel with an improved pixel array configuration is provided. The LCD panel uses a column inversion driving method to drive the data lines so as to achieve a stable common voltage. Moreover, by cross-connecting the layout traces of the wiring zone in a specified manner, the gate pulses outputted from every two gate lines neighboring the sub-pixel are not overlapped with each other, so that the frame can be normally displayed.