LED Display Pixel Layout With Cyan Units for Wider Color Gamut
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Solution Overview
Problem
Existing light-emitting diode (LED) display devices do not fully meet user requirements for displaying color images, particularly in terms of color gamut and display quality, as they primarily rely on red, green, and blue LED units without effectively incorporating cyan units to enhance color representation.
Innovation Solution
Incorporating a greater number of green units than red, blue, and cyan units on a substrate, with cyan units disposed to improve color gamut, and using color conversion layers to achieve the desired color emissions, along with spacers and distributed Bragg reflectors to optimize light utilization and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If red, green, and blue LED units are disposed in the display device to mix colors, then the display device can realize color image display, but the color gamut and display quality do not fully meet user requirements
Solution Approach 1:
The display device segments the color display function by separating cyan LED units from the traditional red-green-blue arrangement, creating distinct cyan emission regions that independently contribute to color gamut enhancement without requiring proportional increases in other color units
Solution Approach 2:
The patent applies local quality by strategically positioning cyan LED units in specific regions where they can maximize their contribution to color gamut, rather than uniformly distributing all color units. This allows optimized color performance in critical display areas while maintaining overall device simplicity
2Manufacturing precision
If the quantity of green units is increased to enhance display quality, then the pixel information density seen by the human eye increases, but the total number of LED units and cost increase
Solution Approach 1:
The patent changes the color composition parameters of the LED array by introducing cyan units with specific wavelength characteristics that complement green units. This parameter change allows achieving enhanced display quality through optimized color mixing rather than simply increasing the quantity of green units, thereby reducing the total number of LED units required
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enhances the color gamut and display quality of LED display devices by increasing the density of pixel information seen by the human eye, achieving a wide color gamut and improved light mixing effects while reducing the total number of LED units, thus lowering costs and energy consumption.
Implementation Method 1
distributed Bragg reflectors to optimize light utilization and efficiency
Implementation Method 2
using color conversion layers to achieve the desired color emissions
Data Source
AI summary
A light-emitting diode display device is provided. The light-emitting diode display device includes a substrate and a plurality of green units, a plurality of red units, a plurality of blue units, and a plurality of cyan units periodically arranged on the substrate. The quantity of green units is higher than the quantity of red units, the quantity of green units is higher than the quantity of blue units, and the quantity of green units is higher than the quantity of cyan units.