Display Substrate Electrode Layout for Uniform Sub-Pixel Aperture
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Solution Overview
Problem
Existing display technologies face challenges in achieving high resolution, high transmittance, large size, low power consumption, and low cost, particularly in maintaining uniform aperture ratios in sub-pixels.
Innovation Solution
The display substrate design includes a base substrate with gate lines, data lines, and sub-pixels arranged in specific configurations to form first and second pixel groups. This configuration ensures that sub-pixels are coupled to different gate lines and share data lines, with a common electrode line and data line segments arranged alternately to enhance aperture ratios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional sub-pixel arrangements are used, then device complexity is reduced, but aperture ratio uniformity deteriorates
Solution Approach 1:
The display panel is segmented into first pixel groups and second pixel groups with different sub-pixel arrangements. First pixel groups contain sub-pixels of the first color, while second pixel groups contain sub-pixels of the second color. This segmentation allows each pixel group type to have optimized aperture ratios, improving overall uniformity despite increased configuration complexity.
Solution Approach 2:
Different regions of the display panel are assigned different pixel group configurations tailored to their specific requirements. By locally optimizing the arrangement of sub-pixels in first and second pixel groups, each region achieves its best possible aperture ratio uniformity rather than applying a single uniform design across the entire panel.
2Manufacturing precision
If more gate lines are added to control sub-pixels independently, then display resolution is improved, but manufacturing complexity increases
Solution Approach 1:
Gate lines are designed to serve multiple functions by controlling sub-pixels across different pixel groups. The same gate line structure is used to control both first and second pixel groups, reducing the total number of gate lines needed while maintaining high display resolution through the alternating pixel group configuration.
3Device complexity
If common electrode line and data line are placed in the same region, then device complexity is reduced, but sub-pixel aperture ratio deteriorates
Solution Approach 1:
The common electrode lines and data lines are arranged in alternating regions along the first direction, separating them spatially. This dimensional arrangement ensures that neither electrode line type interferes with the other or with sub-pixel formation, maintaining high aperture ratios while managing the complexity through systematic spatial organization.
Data Source
AI summary
The disclosure provides display substrate and display panel, and belongs to field of display technology. The display substrate includes base substrate; and gate lines, data lines and sub-pixels on base substrate. Sub-pixels form first pixel groups arranged side by side along first direction and second pixel groups arranged side by side along second direction; first region is between any two adjacent first pixel groups, and second region is between any two adjacent second pixel groups; common electrode line is in at least a portion of the first regions, and common electrode line and data line are in different first regions; and common electrode line includes common electrode line segments and protrusions each coupled between two common electrode line segments, a width of protrusion in any direction is larger than that of common electrode line segment in first direction; and protrusion is in the second region.