Mixed Sub Pixel Display Panel Brightness and Color Reproducibility
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Solution Overview
Problem
Conventional display devices face limitations in achieving improved brightness and color reproducibility, particularly in displaying white and auxiliary colors, which affect image quality and contrast.
Innovation Solution
A display device with a mixed sub pixel configuration, including a lower pixel for displaying white light and an upper pixel for displaying auxiliary color light, utilizing different gamma curves and gamma correction values to manage grayscale and intensity, and a control unit for generating and correcting data to optimize image output.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a display device uses red, green, and blue sub pixels for displaying colors, then color reproduction is achieved, but brightness and color reproducibility are limited
Solution Approach 1:
The pixel is divided into multiple sub-pixels with different color characteristics (first sub-pixel with first color, second sub-pixel with second color). This segmentation allows each sub-pixel to contribute differently to the overall display output, enabling enhanced brightness and color reproducibility by combining the advantages of different color sub-pixels.
Solution Approach 2:
Multiple sub-pixels with different color properties are merged within a single pixel structure. The first sub-pixel and second sub-pixel work together to produce combined output that achieves both high brightness and improved color reproducibility, overcoming the limitations of using only red, green, and blue sub-pixels.
2Illumination intensity
If a display device includes red, green, blue, and white sub pixels to improve brightness, then brightness is enhanced, but device complexity increases
Solution Approach 1:
The pixel structure is designed to perform multiple functions using a unified architecture. The first and second sub-pixels can display different colors and contribute to both brightness enhancement and color reproduction, reducing the need for separate dedicated white sub-pixels and simplifying the overall device structure.
3Manufacturing precision
If gamma correction is applied to manage grayscale and intensity, then color accuracy is improved, but processing time increases
Solution Approach 1:
Gamma correction values are pre-stored in a lookup table during system initialization or calibration. During actual display operation, the system retrieves pre-computed correction values from the lookup table rather than performing complex real-time gamma correction calculations, significantly reducing processing time while maintaining color accuracy.
Data Source
AI summary
A display device including a pixel including a mixed sub pixel configured to receive a mixed data voltage, the mixed sub pixel including a lower pixel configured to display white light having a white color corresponding to the mixed data voltage, and an upper pixel configured to display an auxiliary color light having an auxiliary color corresponding to the mixed data voltage.