Pixel Array Structure With Central White Sub-Pixel

The patent merges the white sub-pixel function into the center of the pixel unit, where it serves as both a light source and a reference for color mixing. The color pixels (R, G, B) are arranged around the white sub-pixel, allowing the white sub-pixel to contribute to white light generation while reducing the need for separate data lines for white pixel control. This combining approach improves light emitting efficiency by utilizing the white sub-pixel's inherent brightness while reducing the overall data line count.

The patent employs asymmetric arrangement of color pixels around the central white sub-pixel. Specifically, the red sub-pixel is positioned closer to the white sub-pixel than the blue sub-pixel, creating an asymmetric configuration that optimizes light mixing and emission efficiency. This asymmetric layout allows for better control of light paths and improves overall luminous efficiency while maintaining a compact structure that reduces data line requirements.

The white sub-pixel positioned at the center serves multiple functions: it acts as a light source for white display, provides a reference for color mixing with adjacent color pixels, and reduces the need for separate data lines. By making the white sub-pixel multi-functional, the patent achieves improved color purity through effective color mixing while avoiding the structural complexity that would result from adding more dedicated color sub-pixels or data lines.

The patent applies local quality by positioning specific color pixels (R, G, B) at specific locations around the white sub-pixel based on their spectral characteristics. The red sub-pixel is placed closer to the white sub-pixel to optimize mixing efficiency, while green and blue pixels are positioned accordingly. This localized optimization of sub-pixel positions enhances color purity through effective spectral mixing without requiring a uniform increase in the number of sub-pixels throughout the display.