Dual-Direction Vehicle Display Using One Pixel Matrix
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Solution Overview
Problem
Existing display devices for vehicles can only display pixel-based graphical content in one direction at a time, requiring multiple independent screens to show information in different directions, which is inefficient in terms of memory and processing power.
Innovation Solution
A display device with two display screens, each with a control unit that can be activated or deactivated independently, using a single pixel matrix to emit light in two opposite directions, and a switchable layer to control light passage, allowing graphical content to be displayed in two directions without the need for separate control units or pixel matrices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a single pixel matrix is used to display graphical content in two directions, then memory usage and processing power requirements are reduced, but the device complexity increases due to the need for switchable layers and dual display screens
Solution Approach 1:
The patent combines two display functions into a single pixel matrix by placing it between two display screens. The same pixel matrix serves both display directions simultaneously, reducing memory usage and processing requirements compared to using two separate pixel matrices. This merging of resources directly addresses the contradiction by reducing quantity of substance (memory) while accepting increased device complexity through the shared architecture.
Solution Approach 2:
The pixel matrix is designed to perform multiple functions by displaying graphical content in two opposite directions simultaneously. The switchable layers enable the single pixel matrix to serve dual purposes, making it a universal component that replaces what would traditionally require two separate display systems. This multi-functionality reduces memory and processing requirements while the structural complexity increases to accommodate the dual-directional capability.
2Power
If a single pixel matrix is used to display graphical content in two directions, then processing power requirements are reduced, but the device complexity increases due to the need for switchable layers and dual display screens
Solution Approach 1:
The patent merges the processing requirements of two separate display systems into a single pixel matrix controlled by one control unit. This consolidation reduces the processing power needed compared to running two independent pixel matrices, while the device complexity increases due to the sophisticated control logic required to manage the shared resource and coordinate the switchable layers.
Solution Approach 2:
The pixel matrix is designed as a universal component that handles display operations in two directions, reducing the overall processing power requirements of the system. The control unit manages this universal component through coordinated control of the switchable layers, which increases device complexity but allows a single processing unit to handle what would otherwise require dual processing capabilities.
3Ease of operation
If two independent display screens are used to display graphical content in two directions, then the ease of operation is improved, but the device complexity increases and memory usage increases
Solution Approach 1:
The patent merges two independent display operations into a single pixel matrix system with coordinated control. While this reduces memory usage and processing requirements, it increases device complexity through the need for switchable layers and coordinated control mechanisms. The ease of operation is maintained through the control unit's ability to independently manage each display direction while using shared resources.
4Ease of operation
If two independent display screens are used to display graphical content in two directions, then memory usage increases, but the ease of operation is improved
Solution Approach 1:
The patent merges the memory requirements of two independent display systems into a single shared memory space. By using one pixel matrix for both display directions, the system reduces memory usage compared to maintaining separate memory allocations for two independent displays. The ease of operation is preserved through the control unit's ability to independently manage display content for each direction while utilizing the shared memory resource efficiently.
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
Enables efficient display of graphical content in two directions using a single pixel matrix and reduced memory and processing requirements, while maintaining simplicity in control unit design, and can be integrated into a motor vehicle as an electronic rear mirror.
Implementation Method 1
A control unit (controller) is designed to control a pixel matrix for emitting light that shows the graphical content
Implementation Method 2
a switchable layer to control light passage, allowing graphical content to be displayed in two directions
Data Source
AI summary
A display device includes a pixel matrix configured to emit light, a first display screen which faces in a first direction, a second display screen which faces in a second direction, and a controller. The controller is configured to control the pixel matrix to emit light which passes through the first display screen and passes into surroundings of the display device in the first direction so that graphical content is displayed on the first display screen, based on image data that define the graphical content. The controller is also configured to operate in a first display mode in which graphical content as defined by image data is only displayed on the first display screen and the second display screen is deactivated, and a second display mode in which identical graphical content is displayed on both the first display screen and the second display screen.