Subpixel Subset Switching for Compact High-Resolution Displays
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Solution Overview
Problem
Existing display technologies face challenges in displaying a high number of symbols in a small space with low complexity, particularly in high-resolution displays that require complex control electronics and occupy large areas.
Innovation Solution
The use of predefined subsets of display elements, such as subpixels, grouped into disjoint subsets, allowing for the display of multiple symbols with low complexity by controlling these subsets together, and enabling nesting of display elements to save space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If high-resolution displays with individual control of illuminated areas are used, then display resolution and precision are improved, but device complexity and space requirements increase
Solution Approach 1:
The display is divided into multiple independently controllable illuminated areas (pixels), each capable of being individually controlled to display different symbols or image elements. This segmentation allows high-resolution display while maintaining manageable complexity through modular control of discrete units
Solution Approach 2:
The patent transitions from traditional matrix display approaches to a direct-drive architecture where control lines are assigned directly to specific illuminated areas rather than through row-column matrix scanning. This dimensional reorganization of control signals reduces the complexity of control electronics while maintaining or improving display resolution
2Adaptability or versatility
If matrix driver circuits with multiple control lines are used, then display capability is improved, but space occupation increases
Solution Approach 1:
The patent extracts and eliminates unnecessary intermediate driver circuits and complex control electronics from the display system. By implementing a simplified direct-drive architecture where control lines connect directly to illuminated areas, the solution removes redundant components that would occupy space while maintaining display versatility
Solution Approach 2:
The display elements and control lines are designed to be multi-functional, capable of displaying various symbols and information types through different combinations of illuminated areas. This universality allows a single compact display structure to replace multiple specialized display devices, reducing overall space requirements
3Device complexity
If direct-drive lighting elements are used, then device complexity is reduced, but display versatility and flexibility are limited
Solution Approach 1:
The display system dynamically configures which illuminated areas are active and which are inactive based on control signals. This dynamic control allows the same physical display structure to adapt to different display requirements, symbols, and information types, achieving versatility without increasing hardware complexity
Solution Approach 2:
The system changes operational parameters by varying the activation states of different illuminated areas through control lines. By changing which pixels are on or off, and their individual control parameters, the display can represent different symbols and information while using the same simplified direct-drive hardware architecture
Data Source
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Figure 1C
AI summary
A display device (10) comprises a plurality of display elements (12_1 - 12_20) and a switching device (14) configured to connect different and disjoint subsets of the display elements. Display elements of a subset can be controlled together by means of the switching device.