Variable Curvature Screen for Projector Image Correction
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Solution Overview
Problem
Existing electronic devices, such as projectors, do not effectively account for the curvature of the projection surface or the position of the user, leading to image distortion and suboptimal performance.
Innovation Solution
An electronic device that includes a projector, a processor, a communication interface, and memory, which obtains the curvature value of a screen device based on context information, transmits a control signal to bend the screen, corrects the image accordingly, and projects the corrected image on the screen.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a fixed flat screen is used, then the device complexity is low, but the image distortion varies and projection quality is suboptimal for different user positions
Solution Approach 1:
The screen structure is transformed from a fixed flat configuration to a dynamically adjustable curved surface. The screen can change its curvature radius and shape based on projection requirements and user position, allowing optimal projection quality for different viewing scenarios while maintaining manageable system complexity through automated control.
Solution Approach 2:
The screen's geometric parameters (curvature radius, surface shape) are made variable rather than fixed. By dynamically adjusting these parameters based on input signals and detection data, the system optimizes the projection surface for different user positions and projection distances, resolving the contradiction between projection quality and structural simplicity.
2Ease of operation
If the projector does not account for user position, then the device complexity is low, but the image distortion degree varies depending on user position
Solution Approach 1:
The system incorporates detection means to sense user position and input signals, creating a feedback loop. Based on this feedback, the control unit automatically adjusts the screen's curvature and shape parameters to compensate for image distortion, enabling automatic adaptation to different user positions without manual intervention while managing complexity through automated control algorithms.
Solution Approach 2:
The projection system performs self-adjustment by automatically detecting user position and modifying the screen configuration accordingly. This self-service capability eliminates the need for manual setup or complex user input processing, reducing operational complexity while maintaining high adaptability to different viewing scenarios.
3Adaptability or versatility
If a variable curvature screen is used, then the projection quality improves for different positions, but the device complexity increases
Solution Approach 1:
The variable curvature screen system serves multiple functions: it adapts to different user positions, optimizes projection quality for various distances, and can be controlled through different input methods. This multi-functionality is achieved through a unified control architecture that manages complexity while providing versatile adaptation capabilities.
Solution Approach 2:
A control unit acts as an intermediary between the detection means, user input signals, and the screen actuation mechanisms. This intermediary component simplifies the overall system architecture by centralizing the decision-making logic for screen configuration, thereby managing the complexity of coordinating multiple sensors and actuators while maintaining high adaptability.
Data Source
AI summary
An electronic device configured to project an image on a screen whose curvature is variable, may include: a projector; at least one processor; a communication interface configured to communicate with the screen; and memory storing images and instructions that, when executed by the at least one processor, cause the at least one processor to: obtain a curvature value of the screen based on context information related to the screen; transmit a control signal through the communication interface to the screen for bending the screen based on the curvature value; correct an image of the images stored in the memory based on the curvature value; and control the projector to project the corrected image on the screen.