Expandable Display Scaling Image Data Resolution
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Solution Overview
Problem
Infinitely expandable display apparatuses face issues with screen fading due to resolution mismatches between the set board and display units, where changing the number of connections affects the output resolution, leading to suboptimal image reproduction.
Innovation Solution
The apparatus employs a cascading scheme with ASICs in each display circuit to generate unit arrangement coordinate information and scale image data, allowing the master display circuit to adjust the resolution without altering the set board's output, ensuring proper image display across varying configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the number of connections of display units is changed to achieve different screen sizes, then the adaptability of the display apparatus is improved, but a resolution mismatch occurs between the set board and display units causing screen fading
Solution Approach 1:
An image processing unit is introduced as an intermediary component between the set board and display units. This unit receives image data from the set board, performs resolution conversion to match the total resolution of connected display units, and outputs the converted image data to the appropriate display unit(s), thereby preventing screen fading while maintaining adaptability to different screen sizes
Solution Approach 2:
The system dynamically changes the resolution parameter of image data based on the number of connected display units. The image processing unit detects the total resolution required by the connected display units and converts the image data resolution accordingly, enabling the display apparatus to adapt to different screen sizes without image quality degradation
2Manufacturing precision
If the output resolution of the set board is changed to match different numbers of display unit connections, then the resolution matching is improved, but the device complexity increases due to the need for resolution matching processes
Solution Approach 1:
The image processing unit automatically performs resolution matching without requiring external intervention or complex control processes. It self-detects the total resolution of connected display units and autonomously converts the image data resolution to match, thereby achieving accurate resolution matching while keeping the system simple
3Device complexity
If a single display unit processes image data for multiple configurations, then the device complexity is reduced, but the bandwidth requirements increase due to resolution scaling operations
Solution Approach 1:
The system segments the image data processing function across multiple display units. Each display unit receives and processes a portion of the scaled image data appropriate to its configuration, thereby distributing the processing load and reducing the bandwidth requirements compared to a single unit handling all configurations
Data Source
AI summary
An infinitely expandable display apparatus includes a set board outputting image data having a first resolution and a plurality of display circuits connected to one another through an interface circuit based on a cascading scheme to display the image data, each of the plurality of display circuits including an application specific integrated circuit (ASIC) embedded therein, wherein each of the plurality of display circuits includes a plurality of slave display circuits generating unit arrangement coordinate information based on a connection of the interface circuit and a master display circuit scaling the image data having the first resolution based on the unit arrangement coordinate information and transferring the scaled image data to the plurality of slave display circuits.