Display Pixel Layout With Derivative Emitters for Wider Color Gamut
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Solution Overview
Problem
Conventional RGB electronic displays have a limited color gamut, which restricts the range of colors they can produce, despite using combinations of red, green, and blue light-emitting elements.
Innovation Solution
Incorporating derivative light-emitting elements that emit colors proximate to the primary colors, allowing for the definition of virtual primary colors that expand the color gamut without complicating the content creation process, by using a combination of primary and derivative LEDs in each pixel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If derivative light-emitting elements are added to expand color gamut, then the range of producible colors is increased, but the device complexity increases
Solution Approach 1:
The pixel is segmented into multiple light-emitting elements, each responsible for a specific color (primary or derivative). This segmentation allows independent control of each element to achieve enhanced color gamut while maintaining manageable complexity through modular organization.
Solution Approach 2:
The derivative light-emitting elements serve multiple functions: they expand the color gamut, enable more accurate color representation, and work in combination with primary color elements to produce a broader range of colors. This multi-functionality justifies the added complexity.
2Measurement precision
If virtual primary colors are defined to expand color gamut, then color representation accuracy is improved, but the processing complexity increases
Solution Approach 1:
Virtual primary colors act as intermediaries between the physical light-emitting elements and the final color output. These virtual colors simplify the control system by providing a standardized color space that maps to the physical elements, reducing processing complexity despite the enhanced color gamut.
Solution Approach 2:
The definition of virtual primary colors involves changing the color space parameters to accommodate a broader gamut. This parameter transformation allows accurate color representation while maintaining compatibility with standard video processing techniques through proper color space mapping.
3Adaptability or versatility
If additional derivative LEDs are included in each pixel, then the color gamut is enhanced, but the manufacturing complexity increases
Solution Approach 1:
The pixel structure is segmented into distinct primary and derivative LED elements, each with specific color characteristics. This segmentation facilitates standardized manufacturing processes for each element type while allowing flexible combination to achieve enhanced color gamut.
Solution Approach 2:
The pixel employs a composite structure combining multiple LED types (primary and derivative) with different color emission characteristics. This composite approach enables enhanced color gamut while using well-established LED manufacturing techniques for each component type.
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 enhanced color gamut provides a larger range of producible colors, maintaining compatibility with traditional RGB definitions and standard video processing techniques, while allowing for more accurate color representation without the need for additional complexity in content creation.
Implementation Method 1
each pixel comprises a first primary light-emitting element configured to emit a first primary color located at a first physical primary color point on a color space chromaticity diagram
Data Source
AI summary
An electronic display comprises an array of pixels each comprising first, second, and third primary light-emitting elements that emit primary colors at first, second, and third physical primary color points on a chromaticity diagram, and one or more derivative light-emitting elements that each emit a derivative color at a derivative color point on the chromaticity diagram. The physical primary color points and each derivative color point are located on a boundary of a virtual color space that includes first, second, and third apexes at first, second, and third virtual primary color points on the chromaticity diagram. At least one of the first, second, and third virtual primary color points is different from the first, second, and third physical primary color points, respectively. A color gamut for the pixels is greater than a corresponding gamut for corresponding pixels that are configured to only emit the primary colors.