Display Panel Pixel Column Layout for Refresh-Rate Alignment
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Solution Overview
Problem
Existing ultra-high-definition display panels with tri-gate and three-dot flip architecture experience pixel misalignment when switching from a low refresh rate to a high refresh rate, leading to abnormal display issues.
Innovation Solution
A display panel design with adjacent first and second pixel columns, where each column includes multiple sub-pixels of different colors, and at least two adjacent pixel units are connected to the same data line, allowing simultaneous scanning of sub-pixels of the same color during refresh rate changes to prevent pixel misalignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the display panel uses tri-gate and three-dot flip architecture to achieve ultra-high-definition display, then the display quality and resolution are improved, but pixel misalignment occurs when switching from low refresh rate to high refresh rate
Solution Approach 1:
The display panel is divided into multiple pixel columns (first pixel column, second pixel column, etc.) with each column containing multiple pixel units. This segmentation allows independent control and scanning of each pixel column, preventing misalignment during refresh rate switching by ensuring that pixels in the same column are scanned simultaneously.
Solution Approach 2:
Different pixel units within the same pixel column are configured with the same color of sub-pixels and connected to the same data line, creating local homogeneity. This local quality ensures that pixels in the same column have identical scanning and data transmission characteristics, preventing misalignment during refresh rate changes.
2Productivity
If the refresh rate is increased from first preset refresh rate to second preset refresh rate to meet high refresh rate display needs, then the display responsiveness is improved, but pixel misalignment and display abnormalities occur
Solution Approach 1:
The display panel employs a dynamic scanning mechanism where the scanning sequence and timing are adjusted based on the refresh rate. In the second display mode (high refresh rate), the scanning mechanism dynamically coordinates to ensure simultaneous scanning of sub-pixels in the same pixel column, maintaining display stability despite the increased refresh rate.
Solution Approach 2:
The display controller implements feedback control by monitoring the scanning process and adjusting the scanning timing and sequence to maintain synchronization. This feedback mechanism ensures that even when switching between different refresh rates, the pixels are scanned simultaneously to prevent misalignment and maintain display stability.
3Reliability
If adjacent pixel units are connected to the same data line to enable simultaneous scanning, then pixel misalignment is prevented, but the data line routing complexity increases
Solution Approach 1:
Multiple pixel units (at least two adjacent first pixel units and at least two adjacent second pixel units) are merged and connected to the same data line. This merging approach simplifies the data line routing by consolidating connections rather than creating separate lines for each pixel unit, while still enabling simultaneous scanning and preventing pixel misalignment.
Data Source
AI summary
A display panel and a display device are disclosed. The display panel includes a plurality of scan lines, a plurality of data lines, and a plurality of sub-pixels. Each of the scan lines is electrically connected to a row of the sub-pixels. The plurality of sub-pixels include a first pixel column and a second pixel column. The first pixel column and the second pixel column are arranged adjacent to each other. The first pixel column includes a plurality of first pixel units. The second pixel column includes a plurality of second pixel units. Each of the first pixel unit and the second pixel unit includes three sub-pixels, and colors of the three sub-pixels are different. At least two adjacent first pixel units and at least two adjacent second pixel units are electrically connected to a same data line.