Overlay Display Screens Spatial Offset Broaden Color Space
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional display systems, such as HDTV, have limited color resolution, with recent improvements like the Sharp Aquos Quattron only minimally expanding the color gamut by incorporating yellow, but not providing a substantial improvement in color perception beyond the Rec. 709 triangle.
Innovation Solution
The solution involves assembling two display screens in an overlaid manner with their planar surfaces being co-planar, using transmissive color filter elements associated with addressable sub-pixels, where one set of sub-pixels is spatially offset from the other set along the horizontal and/or vertical direction to enable the use of more than three colors, thereby broadening the color space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional display systems use standard RGB sub-pixels, then the display structure is simple and manufacturing is easy, but the color resolution and color gamut are limited within the Rec. 709 triangle
Solution Approach 1:
The patent divides each pixel into multiple sub-pixels with different color filters (e.g., red, green, blue, and yellow sub-pixels). By segmenting the pixel structure into multiple functional units with different color characteristics, the system achieves extended color gamut while maintaining manageable structural complexity through modular design
Solution Approach 2:
The patent combines multiple display screens with different color filter configurations into a single integrated display assembly. By merging the capabilities of multiple screens with different color gamuts, the system achieves a broader overall color resolution while sharing common structural components
2Adaptability or versatility
If display screens use only three primary colors (RGB), then the manufacturing process is simple and cost-effective, but the color space is limited to the Rec. 709 triangle
Solution Approach 1:
The patent segments the color filter layer into multiple regions with different color characteristics, including primary colors (red, green, blue) and secondary colors (yellow). This segmentation allows the display to represent a broader color space by combining multiple color filters in specific patterns
Solution Approach 2:
The patent applies different color filter configurations to different regions of the display screen. By varying the color filter types in different pixel regions, the system achieves extended color gamut in specific areas while maintaining manufacturing simplicity through localized variations rather than complete redesign
3Measurement precision
If additional color filter elements are added to expand color gamut, then the color resolution improves, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The patent segments the color filter structure into standardized modules that can be systematically arranged. By using segmented color filter patterns (e.g., 2x2 pixel blocks with different color combinations), the system manages complexity through repetitive modular units rather than unique complex structures
Solution Approach 2:
The patent implements dynamic control of sub-pixel addressing, allowing the display to selectively activate different color filter combinations based on the required color output. This dynamic addressing mechanism manages the complexity of multiple color filters through software control rather than hardware 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
This approach enhances color resolution by allowing the use of additional colors beyond the Rec. 709 triangle, providing a richer visual experience with a broader color gamut and improved color perception.
Implementation Method 1
Transmissive color filter elements are provided associated with addressable sub-pixels of the display screens
Data Source
AI summary
In an exemplary embodiment, the color resolution of a first image display screen is increased by assembling the first display screen with a second image display screen in an overlaid manner. Transmissive color filter elements are provided associated with addressable sub-pixels of the display screens. A first set of sub-pixels of the first screen and a second set of sub-pixels of the second screen are cooperatively addressed to display an image pixel of the display assembly, where the first set of sub-pixels addressed is spatially offset from the second set of sub-pixels addressed along the planar surfaces of the display screens. The exemplary display assembly formed by the display screens thereby enables the use of more than three colors to define a broadened color space relative to that defined by the display screens separately.