Display Panel Electrode Layout for Uniform Sub-Pixel Brightness
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Solution Overview
Problem
Existing display devices often experience uneven brightness and defects like vertical bright lines and shaking lines, which affect display quality as the size or resolution increases.
Innovation Solution
The electronic device features a substrate with a specific arrangement of signal lines, electrodes, and sub-pixels, where the electrodes are electrically connected to the signal lines, ensuring even polarity and brightness distribution across sub-pixels during signal updating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the size or resolution of display devices is increased, then the display capability is improved, but uneven brightness and defects such as vertical bright lines and shaking lines occur
Solution Approach 1:
The display panel is divided into multiple sub-pixels (first sub-pixel, second sub-pixel, third sub-pixel, fourth sub-pixel) with different electrode arrangements. Each sub-pixel type has electrodes connected to different signal lines, segmenting the display into distinct units with controlled polarity patterns to prevent uneven brightness and display defects while maintaining high resolution
Solution Approach 2:
Different sub-pixel types are assigned different electrode configurations and signal line connections to create local variations in polarity distribution. The first sub-pixel has electrodes on one side of the signal line while the third sub-pixel has electrodes on the other side, creating localized quality differences that balance overall display uniformity and prevent vertical bright lines
2Device complexity
If electrodes are arranged on one side of signal line, then connection is simplified, but polarity distribution becomes uneven causing display defects
Solution Approach 1:
The electrode arrangements are intentionally made asymmetric relative to the signal lines. The first sub-pixel has electrodes on the first side of the signal line while the third sub-pixel has electrodes on the second side, creating asymmetric patterns that balance polarity distribution across the display and prevent uniform defects while maintaining manageable connection complexity
Solution Approach 2:
The problem of polarity distribution is solved by adding spatial dimensionality to the electrode arrangement. Instead of uniform placement, electrodes are positioned at different lateral positions relative to signal lines (first side vs. second side), using spatial arrangement to achieve uniform polarity distribution without increasing connection complexity
Data Source
AI summary
The present disclosure provides an electronic device, which includes a substrate, a first data line arranged on the substrate and extending along a first direction, a first electrode and a second electrode arranged on the substrate and arranged along the first direction, and a third electrode and a fourth electrode arranged on the substrate and arranged along the first direction, the first electrode, the second electrode, the third electrode and the fourth electrode are electrically connected with the first data line, and the first electrode and the second electrode are located on a first side of the first data line, and the third electrode and the fourth electrode are located on a second side of the first data line relative to the first side.