Display Apparatus Mute Screen Conversion Control
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Solution Overview
Problem
Users experience boredom and potential apparatus trouble perception due to prolonged mute screens during channel changes in display devices, especially when switching from analogue to digital signals, where mute screen times increase to 1.5 to 2 seconds.
Innovation Solution
A display apparatus with a control unit that gradually converts the screen to a mute image and then back to the original image during channel changes, allowing for customizable conversion types and times, including user input options, to minimize perceived downtime.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the mute screen time is extended to 1.5 to 2 seconds for digital signal channel changes, then the screen conversion is more stable, but user boredom and perception of apparatus trouble increase
Solution Approach 1:
The patent divides the mute screen period into two distinct phases: a first mute screen period before the image signal changes and a second mute screen period after the image signal changes. This segmentation allows each phase to be optimized independently - the first phase can be shorter to reduce user boredom, while the second phase ensures stable display of the new signal, thereby resolving the contradiction between stability and time loss.
2Loss of time
If the mute screen duration is reduced to 0.5 to 1 second, then user boredom is reduced, but screen flicking may occur during image conversion
Solution Approach 1:
The patent applies preliminary action by displaying a first mute screen before the actual image signal conversion occurs. This preliminary mute period allows the system to prepare for the conversion while maintaining a relatively short duration to minimize user boredom. The subsequent second mute screen period then ensures stable display after conversion, preventing flicking while keeping the total perceived wait time acceptable.
Data Source
AI summary
Disclosed are a display apparatus and a control method thereof preventing boring and a trouble misunderstanding due to a mute screen supplied in changing an image signal, the display apparatus, including: a display unit which displays an image; an image processing unit which processes an input image signal to be displayed in the display unit, and displays a mute image in the display unit during a mute time when changing the input image signal; and a control unit which controls the image processing unit to gradually convert the total screen of the display unit displaying the input image signal to the mute image before displaying the mute image if a change signal for changing the input image signal is input.