Abstract
The design of the smartphone LCD is gradually shifting to a full-wide screen. This requires a new type of actuator rather than a conventional dynamic receiver. For this purpose, a new actuator is used as a dynamic receiver. This paper introduces and analyzes new types of actuators and compares their force factors. For an analysis tool, a prototype of actuator is analyzed and verified with its experimental results. By using this verified tool, new types of actuators are designed and analyzed. Furthermore, a comparison is done to find out which one is the best for vibration performance.
Highlights
IntroductionActuators mainly perform vibration-related functions, such as vibration and sound generation
Actuators are used mainly to generate vibration in mobile devices
It is expected that the 2 MG type actuator will have the highest vibration performance
Summary
Actuators mainly perform vibration-related functions, such as vibration and sound generation These functions are a very important medium that connects humans and machines, and it becomes more important as time goes by. These days, consumers are actively demanding visual stimuli through the screen and auditory stimuli through the speaker, and tactile stimuli through the actuators. Nam et al proposed a novel design of a linear actuator with a large magnetic force to reduce the response time. Nam et al developed and proposed an externally leveraged circular resonant piezoelectric actuator with haptic natural frequency and a fast response time. Coupled analysis for the vibration motor using an electromagnetic and mechanical finite element method (FEM) was introduced and verified through an experiment [11]
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