Display Device Automatic External Input Recognition
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Solution Overview
Problem
Conventional display devices require manual user input to recognize the type of external device connected to an external input terminal, leading to inconvenience and potential errors in device control.
Innovation Solution
A display device with an external device interface, storage for control information, and a controller that transmits control signals to recognize external devices by detecting image changes, minimizing user input and improving recognition accuracy through network connectivity and image pattern comparison.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual user input is used to recognize external device type, then the display device can identify the connected device, but user inconvenience increases and recognition accuracy decreases
Solution Approach 1:
The display device automatically detects and recognizes the external device type without requiring manual user input. The controller transmits control signals to the external device and analyzes the returned data to identify the device type autonomously, eliminating the need for users to manually specify device information.
Solution Approach 2:
The manual input method is replaced with an automated detection system using control signals and data analysis. Instead of relying on mechanical user input through interfaces, the system uses electronic communication to automatically identify external devices based on their response to control signals.
2Reliability
If manual user input is required for device recognition, then the system can operate with simple hardware, but user inconvenience occurs and errors increase
Solution Approach 1:
The controller transmits control signals to the external device and analyzes the feedback data returned from the device to determine its type. This feedback mechanism enables automatic recognition by comparing the received data with known device profiles, improving control reliability without requiring complex manual configuration systems.
3Extent of automation
If the display device automatically detects external devices, then user convenience improves, but additional detection mechanisms increase device complexity
Solution Approach 1:
The existing controller is enhanced to perform both display control and external device detection functions. The same communication interface and processing unit used for displaying content are also utilized to transmit control signals and analyze external device responses, avoiding the need for separate dedicated detection hardware.
Data Source
AI summary
The objective of the present invention is to provides a display device for automatically recognizing an external device connected to external input terminals, the display device receiving pieces of control information about external devices connected to the same Internet, and then sensing whether a change in the output images occurs during the transmission of a control signal by using the pieces of received control information, while sequentially outputting images received from the external input terminals, thereby recognizing the external device connected to the input terminals.