Display Panel Data Line Segmentation for Polarity Control
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Solution Overview
Problem
Traditional display panel driving methods result in high logic power consumption due to frequent changes in data signal polarity, which is necessary to maintain image quality across different pixel rows.
Innovation Solution
A display panel design with a clock signal generating module, scanning signal generating module, and data signal generating module that reduces the frequency of data signal polarity changes by organizing pixel columns into groups with specific data line connections, allowing polarities to remain consistent during image display times, and using scanning signals to control pixel rows effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional Dot Inversion driving method is used to control pixel polarities, then image quality is maintained across different pixel rows, but the frequency of data signal polarity changes increases, resulting in higher logic power consumption
Solution Approach 1:
The pixel array is divided into multiple pixel rows, with each row controlled by an independent scanning signal line. The data signal lines are segmented to connect to specific pixel rows, allowing independent control of polarity changes for each row segment. This segmentation enables the display panel to maintain image quality across different rows while reducing the overall frequency of polarity changes by controlling each segment separately.
Solution Approach 2:
The patent implements dynamic polarity control where the polarity of data signals changes over time based on the scanning sequence. During the display period, the polarity remains stable for each pixel row, and changes occur only during scanning periods. This dynamic approach allows the system to adapt polarity changes to the scanning rhythm, maintaining image quality while minimizing the frequency of polarity transitions to reduce power consumption.
2Adaptability or versatility
If data signal polarity changes frequently to satisfy different pixel row requirements, then all pixel rows can be controlled effectively, but the logic power consumption increases
Solution Approach 1:
The patent employs periodic polarity changes synchronized with the scanning signal cycles. Each pixel row receives data signals with consistent polarity during its display period, and polarity changes occur periodically during scanning periods. This periodic action ensures that all pixel rows are controlled effectively with appropriate polarities while the changes are confined to specific time windows, reducing the overall frequency of polarity transitions and lowering logic power consumption.
Solution Approach 2:
The data signal polarity remains continuous and stable during the display period for each pixel row, ensuring uninterrupted image quality. Polarity changes are performed only during scanning periods when the display is not actively showing image data. This continuity of useful action during display periods maintains adaptability for controlling all pixel rows while minimizing unnecessary polarity changes that would increase power consumption.
Data Source
AI summary
A display panel and a driving method thereof are provided. The display panel has a clock signal generating module, a scanning signal generating module, a data signal generating module, first and second data lines, and first and second pixel columns. The first data line connects to second and third sets of pixels in the first pixel columns, and the second data line connects to fourth set of pixels in the second pixel columns and the next first set of pixels adjacent thereto. The present invention can reduce the power consumption of the display panel.