Zigzag Subpixel Layout for High-Resolution Flexible Displays
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Solution Overview
Problem
Existing display devices face challenges in achieving extremely high resolution, improved viewing angle characteristics, higher aperture ratio, and flexible display options while maintaining high reliability and display quality.
Innovation Solution
A display device comprising a matrix arrangement of pixel units, each consisting of six subpixels with specific color configurations, and utilizing a novel wiring and transistor structure to reduce pixel area and enhance resolution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the number of subpixels per pixel unit is increased to six, then the resolution is improved, but the pixel area becomes larger
Solution Approach 1:
The pixel unit is segmented into six distinct subpixels (first through sixth subpixels) with different color characteristics, allowing each subpixel to be independently controlled. This segmentation enables higher resolution by providing more color information per pixel unit while maintaining a compact overall structure through shared transistor circuits.
Solution Approach 2:
Multiple subpixels share common transistor circuits and wiring structures. Specifically, the first and second transistors control both the first and second subpixels, and the third and fourth transistors control both the third and fourth subpixels. This merging of control circuits reduces the total area required for pixel units while maintaining six distinct color-displaying subpixels.
2Illumination intensity
If the aperture ratio is increased to improve display quality, then the viewing angle characteristics are improved, but the pixel area becomes larger
Solution Approach 1:
The patent optimizes the local arrangement of subpixels and their corresponding transistors within each pixel unit to maximize the aperture ratio. By strategically positioning the six subpixels and sharing transistor circuits, the design increases the light-emitting area relative to the total pixel area, thereby improving viewing angle characteristics without proportionally increasing the overall pixel footprint.
3Device complexity
If the number of transistors per pixel unit is reduced to simplify the structure, then the manufacturing complexity is reduced, but the resolution may be compromised
Solution Approach 1:
The patent merges the control functions of multiple subpixels into shared transistor circuits. Each pixel unit contains six subpixels but uses a reduced number of transistors by having pairs of subpixels share common transistor control. This merging approach simplifies the overall transistor structure and reduces manufacturing complexity while still maintaining the six-subpixel configuration necessary for high resolution and color accuracy.
Data Source
AI summary
Provided is a display device with extremely high resolution, a display device with higher display quality, a display device with improved viewing angle characteristics, or a flexible display device. Same-color subpixels are arranged in a zigzag pattern in a predetermined direction. In other words, when attention is paid to a subpixel, another two subpixels exhibiting the same color as the subpixel are preferably located upper right and lower right or upper left and lower left. Each pixel includes three subpixels arranged in an L shape. In addition, two pixels are combined so that pixel units including subpixel are arranged in matrix of 3×2.