Graphene Display Devices Dynamic Sub-Pixel Color Gamut Control
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Solution Overview
Problem
Current graphene display technologies face challenges in achieving a wider color gamut coverage and lower power consumption while providing vivid displays.
Innovation Solution
A graphene display device with a graphene display unit and a display control unit, where the graphene display unit consists of multiple graphene light emitting structures acting as dynamic sub-pixels, allowing for the division of pixel gamut and control of displayed colors through gate voltage adjustments, enabling the display of multiple base colors with fewer pixels and reduced power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional ITO is used in display devices, then the structure is simple and easy to manufacture, but the color gamut coverage is limited and power consumption is high
Solution Approach 1:
The patent applies parameter changes by adjusting the gate voltage to dynamically control the emission wavelength and color of graphene light emitting structures. By changing the gate voltage parameter, the device can display multiple base colors (red, green, blue, yellow, cyan) and achieve wide color gamut coverage without requiring multiple fixed-color sub-pixels, thus resolving the contradiction between manufacturing simplicity and color gamut versatility
Solution Approach 2:
The patent implements dynamics by using dynamic sub-pixels where the graphene light emitting structures can change their emission color in real-time based on gate voltage control. This dynamic color adjustment capability allows a single pixel structure to replace multiple fixed-color sub-pixels, achieving wide color gamut coverage while maintaining simple manufacturing processes
2Adaptability or versatility
If more sub-pixels are used to expand color gamut, then the color gamut coverage increases, but the aperture rate decreases and power consumption increases
Solution Approach 1:
The patent applies universality by designing graphene light emitting structures that can perform multiple functions - emitting different base colors (red, green, blue, yellow, cyan) and achieving various intermediate colors through dynamic control. A single universal pixel structure replaces multiple specialized sub-pixels, reducing the total number of pixels needed, lowering power consumption, and maintaining wide color gamut coverage
Solution Approach 2:
The patent merges multiple color emission functions into a single graphene light emitting structure. By combining the ability to emit multiple base colors and control them through gate voltage in one structure, the device achieves wide color gamut coverage with fewer pixels, thereby reducing power consumption and increasing aperture rate
3Adaptability or versatility
If graphene light emitting structures are used to achieve wide color gamut, then the color gamut coverage increases, but the device complexity increases
Solution Approach 1:
The patent uses parameter changes (gate voltage adjustment) to control the emission characteristics of graphene light emitting structures. This approach simplifies the device structure compared to using multiple fixed-color sub-pixels, as it requires only voltage control rather than complex multi-subpixel arrangements, thereby achieving wide color gamut coverage with reduced device complexity
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 achieves a wider color gamut coverage and enhanced aperture rate while reducing power consumption by effectively controlling the graphene light emitting structures to display a range of colors with fewer sub-pixels.
Implementation Method 1
the size of the electric field generated by the gate voltage of the semiconductor can be adjusted to restore the Fermi energy level of graphene oxide so as to adjust the emission wavelength of the graphene
Implementation Method 2
the displayed color of Graphene LEDs emission color may be changed by adjusting the gate voltage
Data Source
AI summary
A graphene display device includes a graphene display unit and a display control unit electrically connected with the graphene display unit. The graphene display unit includes a plurality of graphene light emitting structures constituting dynamic sub-pixels of the graphene display unit. The graphene display unit is configured for dividing pixel gamut of multiple base colors of pixels of the graphene display unit. A relationship between the pixel gamut and a pixel gamut coordinate is configured, and the graphene display unit controls the dynamic sub-pixel to display corresponding light in accordance with the pixel gamut coordinate of the inputted pixel. In addition, a display driving method of graphene display devices is disclosed. The graphene display device may accomplish multiple base colors display with fewer pixels such that wider color gamut coverage may be provided, and the aperture rate of the display device is enhanced and the power consumption is reduced.