Display Device Pixel Pattern Arrangement for Color Gamut
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Solution Overview
Problem
Conventional display devices using primary colors red, green, and blue struggle to effectively reproduce a broader range of colors, leading to limitations in color accuracy and vibrancy, especially when trying to represent non-primary colors.
Innovation Solution
The display device employs a pixel pattern arrangement that includes primary pixels composed of two primary color sub-pixels and complex pixels with one primary and one non-primary color sub-pixel, allowing for the representation of additional colors like cyan, yellow, and white, which are arranged in a repetitive pattern to enhance color reproducibility and transmittance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional three-primary-color (RGB) pixel structures are used, then device complexity is low and manufacturing is easy, but color reproducibility and color gamut are limited
Solution Approach 1:
The pixel structure is segmented into multiple types (first pixels with two primary color sub-pixels, second pixels with one primary and one non-primary color sub-pixel, and third pixels with two non-primary color sub-pixels) arranged in a repeating pattern. This segmentation allows different pixel types to specialize in different color reproduction tasks, improving overall color accuracy and gamut while maintaining a systematic, manufacturable structure.
Solution Approach 2:
Different regions of the display panel use different pixel configurations optimized for local color reproduction needs. First pixels dominate in regions requiring strong primary colors, while second and third pixels are strategically placed in regions benefiting from non-primary colors (cyan, yellow, magenta), creating local optimization for color accuracy without requiring complete structural overhaul across the entire panel.
2Manufacturing precision
If more sub-pixels per pixel are added to expand color gamut, then color vibrancy improves, but transmittance and brightness may be compromised
Solution Approach 1:
Adjacent pixels of different types are merged in functionality to achieve full color representation. For example, a first pixel (with red and green sub-pixels) working in conjunction with adjacent second pixels (with blue and cyan sub-pixels) effectively creates a complete RGB color set across the pixel group, expanding color gamut without requiring every individual pixel to contain all three primary colors, thus maintaining transmittance.
Data Source
AI summary
A display device includes pixel patterns to display an image. Each pixel pattern is repetitively arranged in row and column directions, including primary pixels, first complex pixels and second complex pixels. Each primary pixel is composed of two primary color sub-pixels configured to provide two primary colors of three primary colors, wherein the three primary colors comprise red, green and blue. Each first complex pixel is composed of one primary color sub-pixel configured to provide a remaining primary color of the three primary colors and a first non-primary color sub-pixel configured to provide a first color selected from non-primary colors, wherein the non-primary colors are different from the three primary colors. Each complex pixel is composed of one primary color sub-pixel configured to provide the remaining primary color and a second non-primary color sub-pixel configured to provide a second color selected from the non-primary colors.