Triangular RGB Subpixel Arrangement for High-Resolution OLED Displays
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Solution Overview
Problem
Conventional display substrates face challenges in achieving high visual resolution due to the difficulty in forming patterns of organic light emitting materials, leading to complex and costly production processes for OLED displays with small and high-density integration of light-emitting materials.
Innovation Solution
A pixel structure comprising a circular arrangement of differently colored subpixels and their inverted counterparts, with a drive unit that determines coordinates for efficient subpixel rendering, allowing a small number of physical pixel positions to represent more image signals, thereby improving output image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional circular arrangement of RGB subpixels is used, then visual resolution equals physical resolution, but increasing visual resolution requires small and high-density integration which makes production difficult and costly
Solution Approach 1:
The pixel structure is segmented into multiple types (first pixels, second pixels, third pixels, and their inverted counterparts) with different subpixel compositions. This segmentation allows the system to represent more image signals through combinatorial arrangements of subpixels, effectively increasing visual resolution without requiring proportional increases in physical pixel density, thereby easing manufacturing constraints
Solution Approach 2:
The patent introduces a new dimension of pixel organization by creating multiple pixel types with different subpixel configurations (e.g., first pixel with red and inverted green, second pixel with green and inverted blue). This multi-dimensional arrangement allows the same physical pixel area to encode more visual information, achieving higher visual resolution without increasing physical density
2Measurement precision
If small and high-density integration of light-emitting materials is implemented, then visual resolution improves, but production processes become more difficult and costs increase
Solution Approach 1:
Each pixel type serves multiple functions by containing subpixels of different colors and orientations. For example, first pixels contain red and inverted green subpixels, while second pixels contain green and inverted blue subpixels. This multi-functionality allows the display to represent a broader range of colors and image signals without requiring additional dedicated subpixels, thereby improving visual resolution without proportionally increasing device complexity
Solution Approach 2:
The patent changes the parameters of pixel organization by introducing inverted subpixels and creating multiple pixel types with different compositions. This parameter change in how pixels are structured and arranged allows the system to achieve higher visual resolution through combinatorial encoding rather than through increased physical density, thus avoiding the associated production complexities
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 approach enhances visual resolution beyond physical resolution, simplifying the production process and reducing costs by effectively utilizing subpixel rendering to drive isosceles triangle-shaped subpixels, resulting in improved image quality and reduced power consumption.
Implementation Method 1
In the production of subpixels of OLED (Organic Light Emitting Diode)
Data Source
AI summary
A pixel structure comprises a plurality of first pixels, inverted first pixels, second pixels, inverted second pixels, third pixels and inverted third pixels, wherein in a first line of pixels, the first pixel, second pixel and third pixel are arranged horizontally in a circular manner, and in a second line of pixels, the inverted first pixel, inverted second pixel and inverted third pixel are arranged horizontally in a circular manner, wherein the first pixel comprises a first subpixel and an inverted second subpixel, the second pixel comprises a third subpixel and an inverted first subpixel, the third pixel comprises a second subpixel and an inverted third subpixel, the first subpixel, second subpixel, and third subpixel are different from each other, and are selected from red, green, and blue subpixels, respectively, wherein the red, green and blue subpixels are in the shape of a congruent isosceles triangle.