Double-Sided Display Controller Multiplexer Signal Routing
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Solution Overview
Problem
Conventional digital signage systems output information on only one side, limiting the amount of information that can be provided to users and requiring them to physically move to access it.
Innovation Solution
A double-sided display system with a master controller and slave controller, multiplexers, and a bridge output device that allows for simultaneous image output on both sides, enabling efficient information dissemination and remote control operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If conventional digital signage outputs information on only one side, then the device complexity is reduced, but the quantity of information provided to users is limited
Solution Approach 1:
The display system is segmented into two independent display surfaces (front and back sides), each capable of displaying information independently. This segmentation allows the system to provide information on both sides simultaneously, effectively doubling the information capacity without requiring a complete system redesign.
Solution Approach 2:
The patent transitions from a single-sided display to a double-sided display by utilizing the third dimension (depth/thickness) of the display device. By adding display capability to the back side, the system expands its information output capacity in a spatial dimension without significantly increasing overall device complexity.
2Loss of time
If conventional digital signage outputs information on only one side, then the ease of operation is improved, but the loss of time for users to access information increases
Solution Approach 1:
By utilizing the back side of the display device as an additional information output surface, users can access information from either side depending on their position. This spatial expansion reduces the time users need to spend moving to different locations to access information while maintaining ease of operation through intuitive display control.
3Quantity of substance
If a double-sided display system is implemented with multiple controllers and multiplexers, then the quantity of information provided is increased, but the device complexity increases
Solution Approach 1:
The control system is segmented into a master controller and slave controllers, with each managing specific display surfaces. This segmentation allows independent control of front and back displays while maintaining modular architecture that simplifies troubleshooting and maintenance despite the increased system complexity.
Solution Approach 2:
Multiplexers are introduced as intermediary components that manage signal routing between controllers and display surfaces. These intermediaries simplify the control architecture by consolidating signal paths and providing centralized control logic, thereby managing complexity rather than merely adding to it.
4Adaptability or versatility
If image output control commands are implemented for dual-sided display, then the adaptability of the system is improved, but the device complexity increases
Solution Approach 1:
The display system implements dynamic image output control where the master and slave controllers can independently or simultaneously display different images based on control commands. This dynamic adaptability allows the system to respond to different operational scenarios (e.g., front-only mode, back-only mode, simultaneous dual-sided mode) while maintaining a unified control architecture that manages complexity through standardized control protocols.
Data Source
AI summary
An output device for controlling an operation of a double-sided display panel, according to an embodiment of the present invention, comprises: a master controller for controlling an operation of a front display panel; a slave controller for controlling an operation of a back display panel; a first MUX which is controlled by the master controller and receives a first image inputted to the master controller and a second image inputted to the slave controller; and a second MUX which is controlled by the slave controller and receives the first image and the second image, wherein the master controller may control the first MUX and the second MUX to output either of the first image or the second image to each of the front display panel and the back display panel, on the basis of an image output control command.