Display Device Pixel Structure High Resolution Aperture Ratio
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Solution Overview
Problem
Current display devices face challenges in achieving extremely high resolution and high display quality within the limited area of portable information terminals, requiring innovative pixel structures and wiring configurations to enhance resolution and aperture ratio.
Innovation Solution
The display device incorporates a pixel structure with multiple subpixels and a specific wiring configuration, where gate lines are connected to multiple subpixels, allowing for efficient reduction of pixel area and increased resolution, with a focus on high-resolution pixel units that can achieve resolutions of more than 400 ppi to 2000 ppi.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the display resolution is increased to achieve high definition, then the pixel density increases, but the pixel area becomes smaller making it difficult to maintain aperture ratio
Solution Approach 1:
The pixel is divided into multiple subpixels (first subpixel, second subpixel, third subpixel) with different color emission characteristics. Each subpixel is controlled by separate transistors and can be independently addressed, allowing the overall pixel to maintain sufficient area while achieving high resolution through the composite color information from multiple smaller subpixel units.
2Measurement precision
If the pixel area is reduced to increase resolution, then more pixels fit in the display area, but the wiring complexity increases due to more gate lines required
Solution Approach 1:
A single gate line is configured to control multiple subpixels (first subpixel and second subpixel share the first gate line). This multi-functionality approach reduces the total number of gate lines required, thereby reducing wiring complexity while still enabling independent control of each subpixel group to maintain high resolution.
3Ease of operation
If multiple transistors are placed in each pixel to control multiple subpixels, then subpixel control is improved, but the pixel area is further reduced
Solution Approach 1:
Adjacent subpixels (first subpixel and second subpixel) share common gate lines and other circuit elements. This merging approach allows independent control of each subpixel through shared wiring infrastructure, reducing the total transistor count per pixel while maintaining the ability to control each subpixel independently, thus preserving pixel area.
Data Source
AI summary
Provided is a display device with high resolution, high display quality, or high aperture ratio. A pixel includes three subpixels and is electrically connected to two gate lines. One of the gate lines is electrically connected to a gate of a transistor included in each of the two subpixels, and the other gate line is electrically connected to a gate of a transistor included in the other subpixel. Display elements of the three subpixels are arranged in the same direction. Three pixel electrodes of the three subpixels are arranged in the same direction.