Enhanced Grayscale Display via Sub-Pixel Control
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Solution Overview
Problem
Current display devices are cost-prohibitive and unable to display the necessary number of monochrome shades for proper resolution of monochromatic images, particularly in medical imaging applications where high clarity and precision are required.
Innovation Solution
A method and system for enhanced grayscale display that transmits an enhanced grayscale input signal with shade bits and select bits to decode and set sub-pixel common and private color bits and luminosities, allowing for the selection of intermediate shades to form an enhanced grayscale display signal, which can be displayed on standard 8-bit-per-channel RGB displays, effectively increasing the number of perceivable shades from 256 to 2048.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If standard 8-bit display devices are used, then cost is reduced, but the number of monochrome shades that can be displayed is limited to 256
Solution Approach 1:
The patent segments the grayscale display into multiple sub-pixels (red, green, blue) with independent color and luminance control. By controlling the relative intensities of these sub-pixels, the system can generate a wide range of monochrome shades from a standard 8-bit display, effectively segmenting the grayscale output into 2048 distinct shades without requiring a specialized display hardware.
Solution Approach 2:
The patent changes the parameters of sub-pixel control by introducing separate common color bits and private color bits for each sub-pixel, along with luminance control. This parameter expansion allows the system to transform a standard 8-bit display into an enhanced grayscale display capable of showing 2048 shades by manipulating the color and luminance parameters of individual sub-pixels.
2Measurement precision
If custom grayscale display hardware is used, then monochrome shade resolution is improved, but cost increases significantly
Solution Approach 1:
The patent creates a functional copy of enhanced grayscale display capability using standard display hardware. By implementing software-based control mechanisms that manipulate sub-pixel color and luminance parameters, the system produces a visual output equivalent to expensive custom grayscale displays, achieving 2048 monochrome shades without the high manufacturing cost of dedicated hardware.
Solution Approach 2:
The patent makes standard RGB display hardware universal by enabling it to perform both color display and enhanced grayscale display functions. The same physical display can output either standard color images or enhanced monochrome images with 2048 shades, depending on the control signals applied to the sub-pixels, eliminating the need for separate specialized display devices.
3Reliability
If enhanced grayscale processing is implemented, then diagnostic imaging capability is improved, but processing complexity increases
Solution Approach 1:
The patent performs preliminary processing by pre-calculating and storing lookup tables that map input grayscale values to optimized sub-pixel color and luminance combinations. This preliminary action reduces the real-time processing complexity by replacing complex runtime calculations with simple table lookups, while still achieving high-fidelity monochrome display for diagnostic imaging.
Solution Approach 2:
The patent introduces intermediary control structures including common color bits and private color bits that mediate between the input grayscale signal and the final sub-pixel output. These intermediary parameters simplify the processing architecture by breaking down the complex grayscale conversion into manageable stages of color selection and luminance adjustment, reducing overall processing complexity while maintaining imaging quality.
Data Source
AI summary
A method for grayscale display of a desired output shade comprises transmitting an enhanced grayscale input signal for the desired output shade to an enhanced grayscale engine. The input signal including a plurality of shade bits and a plurality of select bits. The method further comprises decoding the plurality of shade bits and the plurality of select bits to select an intermediate shade from a plurality of intermediate shades. The method further comprises forming an enhanced grayscale display. The method further comprises receiving the enhanced grayscale display signal from the enhanced grayscale engine and displaying an enhanced grayscale image on an output display. Responsive to a first user input, a standard grayscale display signal is selected. The standard grayscale display signal is received and a standard grayscale image is displayed on the output display.