Display Panel Curved Emission Areas Reduce Aperture Loss
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Solution Overview
Problem
Display apparatuses face challenges in minimizing aperture ratio loss and improving display quality, particularly in achieving efficient light emission and color representation with existing pixel arrangements.
Innovation Solution
The display panel incorporates a unit pixel area with display elements emitting different colors, arranged in specific patterns and shapes such as circular, dumbbell, and X-shaped emission areas, which optimize light emission and reduce aperture ratio loss by using a color filter and black matrix as an optical functional layer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional pixel arrangements are used, then manufacturing is simpler, but aperture ratio loss increases and display quality deteriorates
Solution Approach 1:
The patent applies curvature by designing emission areas with circular or elliptical shapes instead of conventional rectangular forms. This curvature optimization allows for better light extraction and reduced aperture ratio loss while maintaining manufacturability through standard photolithography processes.
Solution Approach 2:
The patent employs asymmetric pixel arrangements where emission areas of different colors (red, green, blue) have different shapes and sizes optimized for their specific wavelength characteristics. This asymmetric design improves overall aperture ratio by tailoring each emission area to its optical requirements.
2Illumination intensity
If emission areas are increased to improve luminance, then display quality improves, but power consumption increases
Solution Approach 1:
The patent applies local quality by optimizing the shape, size, and position of individual emission areas for each color sub-pixel. Each emission area is locally tailored to maximize light extraction efficiency in its specific region, achieving high luminance with minimal energy consumption through precise spatial optimization.
3Productivity
If aperture ratio is increased to improve light emission, then luminance increases, but manufacturing precision requirements increase
Solution Approach 1:
The patent uses circular and elliptical emission area shapes that are more tolerant to manufacturing variations compared to rectangular shapes. These curved geometries can be efficiently fabricated using standard photolithography techniques, achieving high light emission efficiency without excessive manufacturing precision requirements.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration enhances light extraction efficiency, reduces power consumption, and increases luminance while minimizing aperture ratio loss, thereby improving display quality and extending the lifespan of the display panel.
Implementation Method 1
a first display element configured to emit light of a first color and a second display element configured to emit light of a second color
Data Source
AI summary
In a display panel, a first emission area corresponding to a first display element, a second emission area corresponding to a second display element, and a third emission area corresponding to a third emission area, which are located in a unit pixel area, have closed curve shapes.