Rotating Smart Watch Display for Pixel Burn-in Prevention
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Solution Overview
Problem
Smart watches face inconvenience in portability and pixel degradation due to the need to constantly display images, leading to potential burn-in of display pixels.
Innovation Solution
A smart watch design featuring a rotating display unit with a sensor and control unit that allows for a degradation prevention mode, where the image is rotated to distribute wear evenly, preventing pixel burn-in.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the display unit constantly displays images to provide information to the user, then the information display function is improved, but the display pixels degrade due to burn-in
Solution Approach 1:
The display unit is made rotatable relative to the support frame through a rotating member with gear-coupled protrusions and recesses. The control unit rotates the display unit at predetermined time intervals, transforming it from a static to a dynamic component. This dynamic rotation distributes the display burden across different pixel regions, preventing burn-in while maintaining continuous information display capability.
Solution Approach 2:
The control unit implements periodic rotation of the display unit at predetermined time intervals. This periodic action cycles through different display regions, ensuring that no single area of pixels is continuously stressed. The periodic rotation schedule balances information display requirements with pixel longevity, addressing both the information display function and display pixel lifespan.
2Reliability
If the display unit is made rotatable to prevent pixel degradation, then the display pixel lifespan is improved, but the device structure becomes more complex
Solution Approach 1:
The rotating member is integrated directly into the support frame structure, with the panel frame's connecting frame serving as part of the rotation mechanism. The gear-coupled protrusions and recesses are built into the structural components rather than being separate elements. This merging reduces the number of discrete parts and simplifies the overall device structure while maintaining the rotation functionality.
Solution Approach 2:
The support frame serves multiple functions: it provides structural support, houses the rotating member, and incorporates the gear-coupled connecting frame that enables rotation. The control unit also manages both the display content and the rotation scheduling. This multi-functionality reduces the need for dedicated components, thereby reducing device complexity.
3Reliability
If the display unit rotates automatically at predetermined intervals to distribute wear, then the display pixel lifespan is improved, but the control system becomes more complex
Solution Approach 1:
The control unit autonomously manages the rotation scheduling without requiring external input or complex algorithms. It automatically rotates the display unit at predetermined time intervals, making decisions about when and how to rotate based on simple timing logic. This self-service approach minimizes control system complexity while achieving the pixel lifespan extension goal.
Solution Approach 2:
The control system implements a simple periodic rotation schedule at predetermined time intervals. This regular, predictable pattern is easier to manage and control compared to complex adaptive algorithms. The periodic action provides a straightforward control mechanism that extends display pixel lifespan without requiring sophisticated control system architecture.
Data Source
AI summary
Disclosed is a smart watch which may comprise: a display unit including a display panel displaying an image and a panel frame supporting the display panel; a rotating member including a rotating plate provided with recesses on an outer peripheral surface of the rotating plate, a rotating shaft having one end connected to a center of the rotating plate to rotate the rotating plate, and a driving motor coupled with the other end of the rotating shaft; a control unit to control the display unit and the rotating member; and a support frame to support the display unit and accommodate the rotating member and the control unit.