Graphene Display Driving Method for High Color Gamut

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Solution Overview

Problem

Conventional liquid crystal display technologies fail to achieve high color gamut coverage, despite advancements in display technology, limiting user requirements for color saturation and fidelity.

Innovation Solution

A graphene display with a driving apparatus that includes dynamic sub-pixels and a method to determine grayscale values for red, green, and blue, allowing for the application of driving voltages to achieve color gamut expansion by dividing the color gamut into five primary color blocks, enabling more than 142% color gamut coverage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If conventional liquid crystal display technology is used, then the display can be manufactured with standard processes, but the color gamut coverage is insufficient and cannot meet user requirements for high color saturation

Engineering Contradiction:
Improvecolor gamut coverageVSAvoidmanufacturing complexity
Core Design Contradiction:
Quantity of substanceVSEase of manufacture

Solution Approach 1:

The invention divides each pixel into multiple dynamic sub-pixels (red, green, blue sub-pixels) that can independently control color emission. This segmentation allows precise control over color gamut by adjusting individual sub-pixel intensities, achieving over 142% color gamut coverage while maintaining compatibility with conventional display manufacturing processes

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent implements dynamic sub-pixels that can adjust their emission characteristics in real-time based on driving voltages. The color gamut is dynamically optimized by controlling the intensity and timing of each sub-pixel, enabling the display to achieve high color saturation without requiring complex manufacturing changes

Inventive Principle:
Principle #15Dynamics

2Quantity of substance

If the number of sub-pixels per pixel is increased to improve color gamut, then color fidelity is enhanced, but the aperture ratio decreases and power consumption increases

Engineering Contradiction:
Improvecolor gamut coverageVSAvoidpower consumption
Core Design Contradiction:
Quantity of substanceVSUse of energy by moving object

Solution Approach 1:

The invention uses three dynamic sub-pixels (red, green, blue) per pixel, which is sufficient to achieve over 142% color gamut coverage without unnecessarily increasing the number of sub-pixels. This partial action approach optimizes the balance between color gamut enhancement and power consumption by avoiding excessive sub-pixel complexity

Inventive Principle:
Principle #16Partial or excessive action

Solution Approach 2:

The patent dynamically adjusts the driving voltages applied to each sub-pixel to optimize color gamut coverage. By changing voltage parameters rather than increasing physical sub-pixel count, the system achieves high color fidelity while maintaining reasonable power consumption levels

Inventive Principle:
Principle #35Parameter changes

3Quantity of substance

If more primary colors are used to expand color gamut, then color coverage is improved, but the device structure becomes more complex

Engineering Contradiction:
Improvecolor gamut coverageVSAvoidpixel structure complexity
Core Design Contradiction:
Quantity of substanceVSDevice complexity

Solution Approach 1:

The invention segments each pixel into three dynamic sub-pixels (red, green, blue) that can be independently controlled. This segmentation achieves over 142% color gamut coverage while keeping the structural complexity manageable by using a reasonable number of sub-pixels rather than excessive color channels

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The three dynamic sub-pixels serve multiple functions: they control color emission, adjust brightness levels, and enable various color gamut modes. This multi-functionality reduces overall device complexity by making each sub-pixel versatile rather than requiring dedicated components for each function

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 significantly enhances display quality by achieving high color fidelity and increasing the aperture ratio, thereby reducing power consumption and covering the entire range of existing color gamut.

Implementation Method 1

since the invention of the graphene light-emitting element, makes the graphene applications in the display area to be enlarged extension

Methodology Applied
Scientific EffectElectroluminescence: Electroluminescence

Data Source

PatentUS10170034B2Graphene display, a driving method for a graphene display and a driving apparatus
Publication Date: 2019.01.01 TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO LTD
  • US10170034B2 patent drawing
  • US10170034B2 patent drawing
  • US10170034B2 patent drawing

AI summary

The present application discloses a graphene display, and a driving method and a driving apparatus for a graphene display, the driving apparatus for a graphene display includes obtaining the grayscale values of the three primary colors of the pixel to be input; determining the color and grayscale values of three dynamic sub-pixels according to the grayscale values of the three primary colors of the pixel and the correspondence relationship of the preset grayscale values of the three primary colors and the grayscale values of the five primary colors; applying the driving voltages to the three dynamic sub-pixels respectively corresponding to the color and grayscale values of three dynamic sub-pixels. By the method described above, the gamut of the display is increased, to increase the display performance of the display and decrease the power consumption of the display.