Transparent Display Subpixel Layout for Bright Line Suppression
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Solution Overview
Problem
Existing transparent displays suffer from visual bright lines due to differences in brightness between pixel rows and light-transmitting areas, affecting overall display quality.
Innovation Solution
A display panel arrangement where each pixel unit includes at least three subpixels with different colors, with two subpixels disposed along one direction and one subpixel on the side along a perpendicular direction, ensuring both directions contribute to light emission, and adjacent subpixels of the same color share cathode electrode blocks to simplify the manufacturing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If subpixels are arranged in traditional pixel rows, then the display structure is simple, but visual bright lines appear due to brightness differences between pixel rows and light-transmitting areas
Solution Approach 1:
The patent applies asymmetry by arranging subpixels in a non-traditional configuration where at least one subpixel is positioned at a corner of the pixel unit, creating an asymmetric layout that breaks the regular pixel row pattern. This asymmetric arrangement prevents the formation of continuous bright lines while maintaining manufacturing feasibility through systematic electrode block sharing.
Solution Approach 2:
The patent transitions from a one-dimensional pixel row arrangement to a two-dimensional subpixel distribution pattern. By positioning subpixels at corners and along edges in different spatial dimensions within the pixel unit, the display achieves uniform light emission across both pixel units and light-transmitting areas, eliminating visual bright lines.
2Device complexity
If adjacent subpixels of the same color share cathode electrode blocks, then the manufacturing complexity is reduced, but the electrode block size must be increased
Solution Approach 1:
The patent merges adjacent cathode electrode blocks of the same color into shared electrode structures. By combining electrode blocks that serve adjacent subpixels of the same color, the manufacturing process is simplified while the merged electrode blocks naturally increase in size to cover the combined area, achieving both reduced complexity and enhanced emission uniformity.
Data Source
AI summary
Display panel and display device are provided. The display panel includes a plurality of pixel units disposed along a first direction and a second direction. A pixel unit of the plurality of pixel units includes at least three subpixels with different colors. In a same pixel unit, at least two of the subpixels are disposed along a first direction. Along a second direction, at least one of the subpixels is on a side of the two subpixels disposed along the first direction. The first direction intersects the second direction. In two pixel units that are at least partially adjacent, a subpixel in one of the two pixel units is adjacent to a subpixel in the other one of the two pixel units. Colors of the two adjacent subpixels are same.