Pixel Structure with Segmented Sub-Pixels for Aperture Ratio
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Solution Overview
Problem
The challenge in AMOLED display technology is to increase the pixel aperture ratio and enhance display effects while prolonging the service life, which is hindered by the reduction in sub-pixel size due to limited evaporation and mask process capabilities, making it difficult to maintain a full-color display with increasing sub-pixel numbers.
Innovation Solution
A pixel structure is introduced with a matrix arrangement of pixel units, each comprising a first, second, and third sub-pixel, where the third sub-pixel is arranged in one line and the first and second sub-pixels in another, with the second sub-pixel having a larger light emitting area than the third, and the third sub-pixel having a larger area than the first, intersecting in a rectangular shape to increase the aperture ratio and facilitate evaporation processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the number of sub-pixels is increased to improve display resolution, then the display effect is improved, but the aperture ratio of the pixel is reduced and the service life of the OLED is reduced
Solution Approach 1:
The pixel is divided into three sub-pixels (first, second, and third sub-pixels) with different light emitting areas. This segmentation allows each sub-pixel to be optimized independently, with the second sub-pixel having a larger area to compensate for the overall reduction in pixel size, thereby maintaining aperture ratio while achieving high resolution through the matrix arrangement of multiple pixel units.
Solution Approach 2:
Different sub-pixels within the same pixel unit have different light emitting areas, creating local quality variations. The second sub-pixel is designed with a larger area than the first and third sub-pixels, allowing localized optimization of light emission properties while maintaining the overall pixel aperture ratio.
2Measurement precision
If the sub-pixel size is reduced to increase the number of pixels, then the display resolution is improved, but the service life of the OLED is reduced
Solution Approach 1:
By segmenting the pixel into three sub-pixels with different areas, the invention allows the second sub-pixel to maintain a larger size, which helps preserve OLED service life while still achieving high display resolution through the overall matrix arrangement of multiple pixel units.
Solution Approach 2:
The different light emitting areas of different sub-pixels allow localized optimization where the second sub-pixel maintains a larger area for improved OLED longevity, while the first and third sub-pixels can be smaller to fit more pixels in the display matrix.
3Measurement precision
If the sub-pixel size is reduced to increase the number of pixels, then the display resolution is improved, but the aperture ratio is reduced
Solution Approach 1:
The pixel is segmented into three sub-pixels with different light emitting areas, allowing the second sub-pixel to contribute more to the aperture ratio while the first and third sub-pixels are smaller, enabling higher pixel density without proportionally reducing the overall aperture ratio.
Solution Approach 2:
By creating local quality differences in sub-pixel areas, the invention optimizes the distribution of light emitting areas within each pixel, allowing the second sub-pixel to maintain a larger area for aperture ratio contribution while smaller first and third sub-pixels enable higher overall pixel density.
Data Source
AI summary
The present disclosure provides a pixel structure, a display panel and a control method for the display panel. Multiple pixel units could be arranged in a matrix. Each pixel unit could include a first sub-pixel, a second sub-pixel and a third sub-pixel. In the pixel unit, the third sub-pixel could be arranged in one line, the first sub-pixel and the second sub-pixel could be arranged in another line. The second sub-pixel could have a light emitting area greater than that of the third sub-pixel. The third sub-pixel could have a light emitting area greater than that of the first sub-pixel. In such a way, a pixel aperture ratio could be increased, a display effect could be enhanced and a service life of productions could be prolonged.