Electronic Device Pressure Sensor Bracket Interference
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Electronic devices lack improved sensitivity to external pressure, which affects their ability to accurately detect user inputs such as touch or pressure applications.
Innovation Solution
The integration of a pressure sensor with a support layer having a higher Young's modulus than the sensor, positioned on the lower surface of the display module, and an adhesive tape coupling the bracket and display module, allows for enhanced pressure detection by preventing the bracket from pressing the sensor and ensuring accurate input recognition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the pressure sensor is disposed close to the bracket for compact arrangement, then device compactness is improved, but the bracket presses the pressure sensor causing measurement error
Solution Approach 1:
A support layer with higher Young's modulus than the pressure sensor is introduced as an intermediary between the bracket and the pressure sensor. This support layer prevents the bracket from pressing the pressure sensor during assembly while maintaining compact device structure, thereby resolving the contradiction between compactness and measurement precision.
2Stability of the object's composition
If the bracket is rigidly coupled to the display module for structural stability, then structural stability is improved, but the pressure sensor cannot accurately detect external pressure due to bracket interference
Solution Approach 1:
The support layer acts as a mediator that allows the bracket to be rigidly coupled to the display module for structural stability, while simultaneously preventing the bracket from interfering with the pressure sensor's pressure detection function.
Solution Approach 2:
The support layer is disposed at the specific location where the bracket contacts the pressure sensor area, providing localized support only where needed to prevent bracket pressing, while allowing the rest of the pressure sensor to function normally for accurate pressure detection.
3Ease of manufacture
If no support layer is used to simplify assembly, then manufacturing complexity is reduced, but the pressure sensor malfunctions due to bracket pressing
Solution Approach 1:
The support layer serves as a simple intermediary component that prevents pressure sensor malfunction during assembly. Although it adds one more layer, the support layer can be integrated into the existing assembly process without significantly increasing manufacturing complexity, while greatly improving sensor reliability.
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
This configuration enhances the electronic device's sensitivity to external pressure, enabling precise user input detection and preventing sensor malfunction during assembly.
Implementation Method 1
a support layer disposed on a lower surface of the pressure sensor and having a Young's modulus greater than the pressure sensor
Implementation Method 2
an adhesive tape coupling the bracket and display module to each other
Data Source
AI summary
An electronic device includes a window, a display module, a pressure sensor, and a bracket. The window includes a flat area and a curved area. The display module is disposed on a lower surface of the window to overlap with the flat area and the curved area. The pressure sensor is disposed on a lower surface of the display module to overlap with the curved area. The bracket is disposed on the lower surface of the display module and coupled to at least one of the window and the display module. The pressure sensor is disposed between the window and the bracket. The lower surface of the window and the lower surface of the display module face the same direction.