Motorized TV Screen Exposure for User-Aware Power Saving
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Solution Overview
Problem
Conventional TVs expose the entire screen area at all times, leading to inefficient space utilization and high power consumption due to unnecessary motor operation, and lack user-specific content display capabilities.
Innovation Solution
A TV system that selectively exposes a portion or all of the screen using a motor, controlled by a controller that identifies specific users through camera shooting and stored data, minimizing power consumption by defining content based on screen size and user intent.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the entire screen is exposed at all times in a conventional TV, then the screen area is maximized for display, but space utilization efficiency deteriorates and power consumption increases
Solution Approach 1:
The TV screen transitions from a static fully-exposed state to a dynamic variable state, where the screen can be selectively exposed or concealed based on usage conditions. The cover moves between covering and uncovering positions to adjust the exposed screen area dynamically, optimizing both space utilization and power consumption.
Solution Approach 2:
The screen exposure is segmented into controllable portions rather than being uniformly exposed. The cover can position itself to expose only specific areas of the screen (e.g., upper portion, lower portion, or full screen) based on user needs, allowing selective display of content in different screen regions.
2Adaptability or versatility
If a motor is added to change screen size, then selective screen exposure is enabled, but device complexity increases
Solution Approach 1:
The motor mechanism serves multiple functions: it drives the cover to adjust screen exposure area, positions the camera for optimal shooting angles, and can be controlled through various input methods (remote control, voice commands, sensor detection). This multi-functionality justifies the added complexity by providing versatile control capabilities.
Solution Approach 2:
The controller acts as an intermediary between the motor and the control signals from various sources (remote control, sensors, voice recognition). It processes input signals and translates them into appropriate motor commands, simplifying the overall control architecture and making the system more manageable despite the added motor component.
3Measurement precision
If the motor operates continuously to maintain screen position, then screen exposure control is precise, but power consumption increases
Solution Approach 1:
Instead of continuous operation, the motor operates periodically or intermittently to adjust and maintain screen position. The motor moves the cover to the desired position and then stops, using minimal power to hold the position. Periodic adjustments are made only when position changes are needed, significantly reducing overall power consumption while maintaining precise control.
Solution Approach 2:
The system incorporates sensors (e.g., position sensors, proximity sensors) that automatically detect user presence, device type, and screen position, enabling the motor to self-regulate its operation. The controller receives sensor inputs and autonomously decides when motor adjustment is needed, eliminating the need for continuous motor operation and reducing power consumption.
4Adaptability or versatility
If user identification through camera shooting is implemented, then user-specific content display is enabled, but device complexity increases
Solution Approach 1:
The system replaces complex mechanical user identification methods (e.g., physical cards, biometric scanners) with a simpler camera-based optical recognition system. The camera captures user images or device information, and software algorithms identify the user and retrieve preferences from stored data, achieving sophisticated user-specific functionality with relatively simple hardware.
Solution Approach 2:
Instead of requiring users to physically interact with complex identification devices, the system creates optical copies (images) of users or their devices through the camera. These images are processed to identify users and retrieve their preference data, simplifying the identification process while enabling personalized content display.
Data Source
AI summary
According to an embodiment of the present invention, a control method of a TV in which an exposed size of a screen is varied by a motor comprises the steps of: controlling the motor so that only part of the screen is exposed; displaying arbitrary content in a state in which only the part of the screen is exposed; when a specific condition for an external device is satisfied by referring to first data stored in a memory, starting shooting by means of a camera installed in the TV; identifying a specific user by referring to second data stored in the memory and a result of the shooting; and depending on the specific identified user, controlling to change the displayed content in the state in which the part of the screen is exposed or to control the motor so that all of the screen is exposed.