Display Device Automatic Input Switching Control
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Solution Overview
Problem
Display devices often switch images at unintended times for users due to detecting input signals in interfaces, leading to unexpected changes in the displayed content.
Innovation Solution
A method for controlling display devices that includes displaying a selection screen when no image signal is detected or an operation is received, allowing users to select interfaces, and selecting the image to be displayed based on detected signals or user operations, with options for setting conditions to manage automatic input detection functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If the display device automatically switches to display an image based on the detected image signal, then the device can respond automatically to input signals, but the display image may switch at unintended timing for the user
Solution Approach 1:
The patent introduces a selection screen as an intermediary between automatic signal detection and final image display. When a signal is detected, instead of immediately displaying the image, the system shows a selection screen that allows the user to confirm or choose the display content. This mediator prevents unintended automatic switching while maintaining automatic detection capability.
2Measurement precision
If the display device monitors presence or absence of signal input to each video source terminal, then the device can detect signal changes, but the display image switches at unintended timing
Solution Approach 1:
The patent applies preliminary action by displaying a selection screen before actually switching to the detected image. This preliminary step gives the user advance notice and control opportunity, preventing unintended switching while maintaining accurate signal detection. The selection screen serves as a buffer between detection and execution.
3Adaptability or versatility
If the display device selects the video source terminal with signal input as display target, then the device can automatically adapt to available inputs, but the switching occurs at unintended timing
Solution Approach 1:
The patent implements feedback by showing the selection screen with the detected signal information, allowing the user to verify the detected input before switching. This feedback loop ensures that automatic adaptation occurs only when confirmed by the user, maintaining display consistency while preserving adaptability.
Data Source
AI summary
A projector selects an image of a home screen as an image to be displayed by a display section even when input of an image signal to the interface section is detected when the home screen has been displayed on the grounds that an operation has been received by a remote controller or an operation panel, and changes the image to be displayed by the display section from the image of the home screen to the image based on the image signal the input of which has been detected when the input of the image signal to the interface section is detected when the home screen has been displayed on the grounds that no input of the image signal to the interface section has been detected.