Foldable Display Angle Sensing via Link-Mounted Detector
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Solution Overview
Problem
Current display technologies lack the ability to accurately measure and respond to the folding angle of flexible display panels, which limits their functionality and user experience in foldable devices.
Innovation Solution
A display apparatus with a connection unit, a rotatable case body, a display panel, a joint unit with links, a detector, and an angle sensor unit that measures the folding angle and activates specific areas of the display panel based on the angle, allowing for adaptive functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If flexible display panels are used to enable folding functionality, then adaptability and portability are improved, but the ability to accurately measure and respond to folding angles is lost
Solution Approach 1:
A detector is introduced as an intermediary element that moves with the folding panel and interacts with angle sensor units. This detector mediates between the flexible display panel and the sensing system, enabling accurate folding angle measurement without compromising the panel's flexibility and folding capability.
Solution Approach 2:
The patent replaces traditional mechanical angle sensing mechanisms with an optical sensing system comprising angle sensor units and a detector. This substitution maintains measurement precision while preserving the flexibility and folding functionality of the display panel, as the optical system does not interfere with the panel's mechanical movement.
2Measurement precision
If angle sensor units and detectors are added to measure folding angle, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The sensing system is segmented into multiple angle sensor units positioned at different locations, each capable of independently measuring angles. This segmentation allows for distributed sensing that improves measurement precision while keeping each individual sensor unit relatively simple in structure.
Solution Approach 2:
The detector is designed as a universal component that interacts with multiple angle sensor units, serving as a common reference element for all sensing operations. This multi-functional approach reduces overall system complexity by using a single detector type across different sensing locations rather than requiring specialized sensors at each position.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables accurate measurement of the folding angle and activation of specific display areas, enhancing user interaction and functionality in foldable devices by tailoring the display's functionality to the current fold state.
Implementation Method 1
an angle sensor unit mounted on a second one of the links. The angle sensor unit may include a plurality of sensors aligned along the first guide hole. The angle sensor unit may be configured to sense a location of the detector when the case body rotates.
Data Source
AI summary
A display apparatus and a method of controlling the display apparatus are provided. The display apparatus includes a connection unit, a case body that is rotatable with respect to the connection unit, a display panel on the case body, and including a functional layer, a joint unit having a plurality of links that connect the connection unit to the case body, a detector on a first one of the links, and an angle sensor unit mounted on a second one of the links.