Pixel Array Sub-Pixel Segmentation for Mask Plate Dimension
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Solution Overview
Problem
Existing pixel arrays face challenges in manufacturing due to small minimal dimensions of mask plates, leading to degradation and reduced yield, particularly in full color and sub-pixel rendering arrays where sub-pixels have varying sizes and numbers.
Innovation Solution
A pixel array design with N rows and M columns of pixel units, where each unit includes two sub-pixels of three colors, with adjacent sub-pixels having different colors and the same shape, allowing for increased mask plate dimensions and improved yield by sharing sub-pixels for image display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If sub-pixel size is reduced to increase pixel density, then display resolution is improved, but mask plate minimal dimension decreases leading to manufacturing degradation
Solution Approach 1:
The invention segments the pixel array into different types of pixel units (first pixel units with red and green sub-pixels, second pixel units with blue and green sub-pixels). This segmentation allows different sub-pixel sizes to be used in different regions, with green sub-pixels having larger size to increase mask plate dimension while red and blue sub-pixels can be smaller to maintain high pixel density and resolution.
Solution Approach 2:
The invention applies local quality by making green sub-pixels larger than red and blue sub-pixels in specific pixel units. This local differentiation optimizes the mask plate minimal dimension for manufacturing while maintaining overall high display resolution through the combination of different pixel unit types.
2Measurement precision
If full color pixel array with three sub-pixels per pixel is used, then color display quality is improved, but sub-pixel size becomes too small making fabrication difficult
Solution Approach 1:
The invention segments the traditional full-color pixel into two separate pixel units: one containing red and green sub-pixels, and another containing blue and green sub-pixels. This segmentation allows green sub-pixels to be larger and easier to manufacture while still achieving full-color display capability through the combination of both pixel unit types.
Solution Approach 2:
The invention merges the functionality of multiple pixel units to achieve full-color display. By combining first pixel units (red+green) and second pixel units (blue+green) in the display array, the system achieves complete color coverage while using larger, easier-to-manufacture green sub-pixels as the common element.
3Device complexity
If sub-pixel rendering pixel array is used to reduce sub-pixel count, then manufacturing complexity is reduced, but green sub-pixel size becomes smaller reducing mask plate dimension
Solution Approach 1:
The invention applies local quality by making green sub-pixels larger than red and blue sub-pixels in specific pixel units. This local differentiation optimizes the mask plate minimal dimension for manufacturing while maintaining overall high display resolution through the combination of different pixel unit types.
Data Source
AI summary
The invention provides a pixel array, including N rows and M columns of pixel units, wherein each pixel unit includes two sub-pixels, two adjacent pixel units in the same row include sub-pixels of three colors including a red sub-pixel, a green sub-pixel and a blue sub-pixel, every two adjacent sub-pixels in the same row have different colors, in the pixel array, all the sub-pixels have the same shape, every two adjacent green sub-pixels are provided with a sub-pixel of other color therebetween, and every two adjacent blue sub-pixels are provided with three sub-pixels of other colors therebetween. The invention also provides a display device, a driving method and a driving device. Employing the pixel array of the invention, an image is displayed with a higher visual resolution, and a mask plate for manufacturing the pixel array has a larger minimal size, and the pixel array is manufactured with high yield.