Curved Display Pressure Sensor Test Apparatus with Adjustable Angle
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Solution Overview
Problem
Conventional methods for testing the operation and sensitivity of pressure sensors on curved display panels are inaccurate due to the tendency of weights to move or slide on the curved surface, making it difficult to perform precise tests on enlarged display devices with curved portions.
Innovation Solution
A test apparatus with a stage, angle adjusting portion, and pressing guide system that allows for precise angle adjustment and pressure application on curved portions of display devices, using a pressing member with a guide arm and anti-slip features to ensure accurate pressure distribution and prevent slipping, enabling the measurement of pressure information and correction of sensitivity thresholds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a weight is placed on a curved display panel for testing, then the test can be performed using only the weight's self-weight, but the weight moves or slides on the curved surface making accurate testing difficult
Solution Approach 1:
The pressing member is divided into multiple independent pressing portions that can be positioned at different locations on the curved display panel. Each pressing portion can independently apply pressure to specific curved regions, allowing precise pressure application without the weight sliding. The segmentation enables targeted testing of different curved portions while maintaining measurement accuracy.
Solution Approach 2:
The solution transitions from a single-point weight application to a multi-dimensional pressing system. The pressing member includes multiple pressing portions distributed across different spatial dimensions on the curved surface, enabling pressure application in various directions and locations simultaneously. This dimensional expansion prevents sliding by distributing the pressing force across multiple contact points.
2Adaptability or versatility
If the display panel is enlarged with curved portions, then the display device can provide enhanced user experience, but conventional testing methods become inaccurate
Solution Approach 1:
The pressing member is designed to be movable and adjustable, capable of dynamically positioning its multiple pressing portions to match the curved geometry of the display panel. The pressing portions can be adjusted to follow the curved surface contours, ensuring reliable pressure application regardless of the panel's size or curvature variations. This dynamic adaptability maintains testing reliability across different display configurations.
Solution Approach 2:
The testing system incorporates adjustable parameters including the position, pressure magnitude, and distribution of multiple pressing portions. By changing these parameters, the system can adapt to different curved display panel geometries and sizes. The pressing force distribution and positioning can be optimized for each specific curved surface, ensuring reliable pressure sensor testing across various display device configurations.
Data Source
AI summary
A test apparatus includes: a stage having a planar surface extending in a first direction and a second direction crossing the first direction; a mounting portion that is disposed on the stage to place a test member thereon; an angle adjusting portion adjusting a first angle of the mounting portion to incline the mounting portion with respect to the planar surface of the stage; and a pressing guide disposed on the stage and moving a pressing member in the first direction, the second direction, and a third direction normal to the planar surface of the stage.