Selective Attenuation Element for Pixel Grayscale Control
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Solution Overview
Problem
Existing display apparatuses face inefficiencies in controlling grayscale intensity of pixels, as each pixel typically requires dedicated circuitry, which can be costly and complex, especially when trying to share light sources and attenuation elements across multiple pixels.
Innovation Solution
The use of a selective attenuation element shared by multiple pixels, combined with an array of mono-chrome light filters and a controller to manage light sources and attenuation, allows for efficient grayscale control of pixels by selectively attenuating light from a common source, enabling more flexible and cost-effective pixel intensity management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If each pixel has dedicated circuitry for controlling grayscale intensity, then pixel intensity control precision is improved, but device complexity and cost increase
Solution Approach 1:
The patent merges the grayscale control function from individual pixel circuitry into a shared selective attenuation element that serves multiple pixels. This single attenuation element can be selectively activated to control the light intensity for an entire row of pixels, eliminating the need for separate circuitry in each pixel while maintaining precise grayscale control capability.
Solution Approach 2:
The selective attenuation element serves multiple pixels simultaneously, acting as a universal control mechanism for grayscale intensity across a row of pixels. This multi-functional component replaces the traditional dedicated circuitry for each pixel, reducing overall system complexity while preserving the ability to control intensity precision.
2Device complexity
If light sources and attenuation elements are shared across multiple pixels, then device complexity and cost are reduced, but control precision over individual pixel intensity may be compromised
Solution Approach 1:
The patent segments the display into rows where each row shares a common selective attenuation element, but maintains independence between rows. This segmentation allows precise control at the row level while sharing resources within the row, achieving a balance between control precision and complexity reduction.
Solution Approach 2:
The selective attenuation element provides dynamic control over light intensity for the entire row of pixels it serves. By selectively activating and adjusting the attenuation level of this single element, the system can precisely control the grayscale intensity for multiple pixels simultaneously, maintaining precision despite the shared architecture.
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 solution enables efficient grayscale control of pixels by sharing light sources and attenuation elements, reducing complexity and cost while improving the rendering of images by allowing for precise intensity adjustments across multiple pixels.
Implementation Method 1
a selective attenuation element (SAE) 4, used for a plurality of adjacent pixels and configured to attenuate light from the at least one light source 6
Implementation Method 2
a group 10 of adjacent mono-chrome light filters 8, used for the plurality of adjacent pixels, the group 10 comprising: a first mono-chrome light filter 8, for a first one of the plurality of adjacent pixels, configured to filter light transmitted via the selective attenuation element 4 for the first one of the adjacent pixels
Data Source
Figure 1A~3B
Figure 4A~4C
Figure 5
AI summary
An apparatus comprising: at least one light source; a selective attenuation element, used for a plurality of adjacent pixels and configured to attenuate light from the at least one light source; and a group of adjacent mono-chrome light filters, used for the plurality of adjacent pixels, the group comprising: a first mono-chrome light filter, for a first one of the plurality of adjacent pixels, configured to filter light transmitted via the selective attenuation element for the first one of the adjacent pixels; and a second mono-chrome light filter, for a second one of the plurality of adjacent pixels, configured to filter light transmitted via the selective attenuation element for the second one of the adjacent pixels.