Display Device Pressure Sensing Through Gasket Signal Input
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Solution Overview
Problem
Existing display devices are prone to damage from applied pressure, particularly affecting the display panel and cover window, due to inadequate pressure measurement mechanisms.
Innovation Solution
Incorporation of a gasket with a signal input portion and a sensor on the display circuit board to measure pressure variations, along with a bracket and panel protection layer to protect the display panel and circuit board.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If pressure is applied to fix structures to the rear side of the display panel, then the structures are securely fixed, but the display panel or cover window may be damaged
Solution Approach 1:
The sensor is installed beforehand on the display circuit board to detect pressure before damage occurs. This preliminary detection allows the system to monitor pressure levels and prevent damage by alerting operators or controlling the pressing process in advance.
Solution Approach 2:
The sensor provides real-time feedback on the pressure applied during the fixing process. This feedback mechanism allows for dynamic adjustment of pressing force, ensuring that structures are securely fixed while preventing excessive pressure that could damage the display panel or cover window.
2Measurement precision
If a sensor is added to measure pressure, then pressure measurement precision is improved, but device complexity increases
Solution Approach 1:
The sensor acts as an intermediary element between the pressing mechanism and the display panel. It indirectly measures pressure through its electrical properties (capacitance, resistance, or inductance changes) rather than directly承受 the mechanical load, simplifying the overall structure while maintaining measurement precision.
Solution Approach 2:
The patent replaces complex mechanical pressure measurement systems with electrical sensors that detect pressure through changes in electrical properties. This substitution simplifies the device structure while achieving precise pressure measurement through electronic means rather than mechanical gauges or load cells.
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
Precise measurement of applied pressure prevents damage to the display panel and cover window, enhancing the durability and reliability of the display device.
Implementation Method 1
the sensor may include a first wire and a second wire arranged to intersect the first wire
Implementation Method 2
the sensor configured to sense a signal which varies according to a distance between the signal input portion and the sensor
Data Source
AI summary
Provided is a display device. The display device includes a display panel, a first cover arranged on a first surface of the display panel, a display circuit board connected to the first surface of the display panel, and a gasket arranged on a surface of the display circuit board connected to the display panel, wherein the gasket includes a signal input portion, and the display circuit board includes a sensor configured to sense a signal which varies according to a distance between the signal input portion and the sensor.