LED Display Current Control for Multi-Gamut Adaptation
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Solution Overview
Problem
Existing display apparatuses require separate LED displays for each color gamut, which is not cost-effective due to increasing LED prices and limited flexibility in adapting to different display modes and content types.
Innovation Solution
A display apparatus with a processor that controls a display driver to adjust current intensity and application time for light emitting components, allowing operation in multiple color gamuts based on display modes, user commands, and content types, using stored current intensity information for Adobe and DCI color gamuts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If separate LED displays are manufactured for each color gamut, then color gamut accuracy is improved, but manufacturing cost increases and device complexity increases
Solution Approach 1:
The patent implements a single LED display that can operate in multiple color gamut modes (e.g., Adobe RGB, DCI-P3, sRGB) by dynamically adjusting driving currents to light emitting components. The display driver is configured to apply different current intensities to red, green, and blue subpixels based on the selected color gamut, allowing one physical display to universally support multiple color standards without requiring separate manufacturing for each gamut type.
Solution Approach 2:
The patent changes the electrical parameters (current intensity) applied to the light emitting components based on the desired color gamut mode. By adjusting the driving current levels to each subpixel according to preset current intensity information for different color gamuts, the display can switch between color spaces without physical reconfiguration or separate hardware, thereby reducing manufacturing complexity while maintaining color accuracy.
2Manufacturing precision
If separate LED displays are manufactured for each color gamut, then color gamut accuracy is improved, but device complexity increases
Solution Approach 1:
The display apparatus is designed as a universal device that can adapt to multiple color gamut standards through software-controlled current adjustment rather than requiring separate physical displays for each standard. The processor and display driver work together to select and apply appropriate current intensity profiles, reducing device complexity while maintaining color gamut accuracy.
Solution Approach 2:
The patent uses preset current intensity information that replicates the electrical characteristics required for different color gamuts. Instead of manufacturing separate displays, the system creates virtual copies of the desired color output by applying stored current profiles corresponding to each color gamut standard, thereby achieving multiple color spaces from a single physical display.
3Ease of manufacture
If a single LED display is used for multiple color gamuts, then manufacturing cost is reduced, but color gamut accuracy deteriorates
Solution Approach 1:
The patent compensates for the potential loss of color gamut accuracy by precisely adjusting the driving current parameters applied to each light emitting component. The display driver uses stored current intensity information specific to each color gamut mode to fine-tune the output of red, green, and blue subpixels, ensuring that color accuracy is maintained even when using a single display for multiple gamuts.
Solution Approach 2:
The system incorporates mechanisms to determine the appropriate display mode based on content type or user input, and applies corresponding current intensity adjustments accordingly. This adaptive feedback approach ensures that the correct current profile is selected for each color gamut requirement, maintaining color accuracy while using a single versatile display.
4Adaptability or versatility
If current intensity is adjusted for different display modes, then color gamut adaptability is improved, but brightness consistency deteriorates
Solution Approach 1:
The patent adjusts not only the current intensity but also the current application time for different display modes. By modifying both parameters, the system can maintain perceived brightness consistency across different color gamuts while still achieving the required color accuracy. The processor controls the display driver to apply currents with adjusted intensities and durations, compensating for variations in light output characteristics.
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 a single LED display to operate in various color gamuts, optimizing cost-effectiveness and adaptability by dynamically adjusting current intensity and application time for different display modes and content types, maintaining consistent brightness and minimizing user perception of mode changes.
Implementation Method 1
a plurality of light emitting components... implemented as sub pixels such as a Red (R) LED, a Green (G) LED and a Blue (B) LED
Data Source
AI summary
A display apparatus and controlling method thereof are provided. The display apparatus includes a display including a plurality of light emitting components, a display driver that drives the display by applying a current to the plurality of light emitting components, a storage that stores current intensity information for each of a plurality of display modes providing different color gamuts, and a processor that acquires current intensity information corresponding to a present display mode, among the plurality of display modes, from the storage and controls the display driver to apply the current to the plurality of light emitting components based on the acquired current intensity information.