Display Device Mode Switching for Illuminance-Based Static Screens
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional display devices maintain a plain and unattractive display environment when turned off, and those that remain on provide beautification only upon user input, lacking automatic and multi-mode operation.
Innovation Solution
A display device and method that automatically displays a beautification screen in multiple modes, including a mode for static images, based on user presence detection and ambient illuminance, with adjustable power settings and user interface options.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the display device maintains a black screen in off state to save power, then energy consumption is reduced, but the display environment becomes plain and unattractive
Solution Approach 1:
The display device dynamically adjusts its state based on user presence detection. When no user is detected, it transitions to a beautification mode displaying static images or screen savers even in low-power state. When user presence is detected, it switches to functional modes. This dynamic state transition resolves the contradiction by making the display attractive during idle periods while maintaining power efficiency.
Solution Approach 2:
The system changes display parameters (from black screen to beautification screen) based on detected conditions. The processor determines whether to display a beautification screen by evaluating user presence, time of day, and power state parameters. This parameter-based decision-making enables the display to be both power-efficient and visually appealing at different times.
2Adaptability or versatility
If the display device operates in on state to display beautification screen, then display attractiveness is improved, but power consumption increases
Solution Approach 1:
The display device performs partial action by showing beautification screens only during specific conditions (idle state, no user presence, specific time periods) rather than continuously. This selective display approach provides visual appeal when needed while avoiding unnecessary power consumption during active use or when users are present.
Solution Approach 2:
The system implements periodic checking of user presence and automatically transitions between black screen mode and beautification screen mode. The processor periodically evaluates whether to switch modes based on detected conditions, creating a rhythm of display states that balances aesthetics and power efficiency over time.
3Ease of operation
If the display device provides beautification screen upon user input in on state, then user interaction capability is maintained, but automatic operation capability is lacking
Solution Approach 1:
The display device serves itself by automatically detecting user presence and autonomously deciding when to display beautification screens without requiring user input. The sensor module and processor work together to make autonomous decisions about display content, eliminating the need for user commands while maintaining appropriate display behavior.
Solution Approach 2:
The system uses feedback from the sensor module (detecting user presence, movement, or absence) to automatically adjust display behavior. This feedback loop enables the display to respond to environmental conditions and user behavior patterns without direct user input, achieving both automatic operation and user-friendly behavior.
Data Source
Figure 1~2
Figure 3~4a
Figure 4b~5
AI summary
A display device includes a display, a first sensor sensing movement, a second sensor sensing illuminance, and a processor operatively connected with the display, the first sensor, and the second sensor. The processor is configured to operate in a first mode or a second mode. The first mode is a mode in which a dynamic image is displayed in the display and the second mode is a mode in which a static image is displayed in the display. The processor sets a first critical time for sensing the movement based on the illuminance. If specified movement of a user is sensed in the second mode within the first critical time, the processor controls the display to display the static image.