Display Device Gamut Range Adjustment via Driving Current
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional display devices are limited to displaying image signals within a default gamut range, failing to accurately represent input signals with gamut ranges greater than the default, leading to a need for adjustable gamut ranges to enhance color expression.
Innovation Solution
A display device and control method that adjust the gamut range by analyzing color distribution and adjusting the driving current applied to the display unit on a frame-by-frame and pixel-by-pixel basis, allowing the display unit to operate within a gamut range optimized for the input image signal, and optionally receiving user-defined target gamut ranges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the display device uses a default gamut range for all image signals, then the device complexity is reduced and operation is simplified, but the color representation accuracy deteriorates when input signals have gamut ranges greater than the default
Solution Approach 1:
The patent implements dynamic gamut range adjustment by analyzing the color distribution of input image signals and automatically adapting the display gamut range accordingly. The processor determines the gamut range of the input image signal and adjusts the display unit's gamut range dynamically, allowing the system to transition from a static default gamut to a dynamic adaptive gamut that matches the input signal characteristics, thereby improving color representation accuracy without requiring manual intervention
Solution Approach 2:
The patent changes the gamut range parameter of the display device based on the analyzed color distribution of the input image signal. By adjusting the gamut range parameter dynamically according to the input signal's color characteristics, the system achieves accurate color representation for various image types while maintaining operational simplicity through automated parameter adaptation
2Measurement precision
If the display device adjusts the gamut range dynamically based on color distribution analysis, then the color representation accuracy is improved, but the processing time and computational complexity increase
Solution Approach 1:
The patent performs preliminary color distribution analysis on the input image signal to determine its gamut range before display. By analyzing the color distribution in advance and pre-determining the appropriate gamut range setting, the system prepares the optimal display parameters ahead of time, reducing real-time processing delays while maintaining accurate color representation
Solution Approach 2:
The patent divides the color space into multiple regions and analyzes the distribution of pixels across these regions to determine the overall color distribution characteristics of the image signal. This segmented analysis approach allows for efficient computation by breaking down the complex color distribution problem into manageable regional assessments, reducing processing time while maintaining accuracy
3Measurement precision
If the display device applies different driving currents to different pixels based on color distribution, then the gamut range optimization is improved, but the energy consumption increases
Solution Approach 1:
The patent applies different driving currents to different pixels or pixel groups based on the local color distribution characteristics within the image signal. By analyzing which regions require expanded gamut representation and applying enhanced driving current only to those specific areas rather than uniformly across the entire display, the system achieves localized gamut optimization while minimizing overall energy consumption
Solution Approach 2:
The patent applies enhanced driving current selectively only to the extent necessary for achieving the desired gamut range optimization in specific color regions, rather than applying excessive current uniformly across all pixels. This partial action approach ensures sufficient color representation where needed while avoiding unnecessary energy consumption in regions that do not require gamut expansion
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
Enables more accurate and diverse color representation by dynamically adjusting the gamut range based on the input image signal, ensuring optimal image quality and user-defined settings.
Implementation Method 1
a display unit of which a gamut range is changed according to a size of a driving current
Data Source
AI summary
A display device is disclosed. The present display device comprises: a display unit of which the color gamut range varies according to the size of a driving current; and a processor for analyzing, per frame unit, the color distribution of an image signal, and adjusting, per frame unit, the size of the driving current on the basis of the analyzed color distribution such that the display unit operates within the color gamut range.