Electrostatic Simulation Methodology for Capacitive Touch-Screen Panels

Cannon, Barry; Brennan, Conor

doi:10.1049/cp.2014.0688

Cited by 5 publications

(6 citation statements)

References 25 publications

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“…It has been widely applied in electromagnetism-related fields. 42,43 Large and small CNPs were modeled as spheres with radii of R and r, respectively (see Figure 2a). They were considered solid conductors of continuum matter.…”

Section: ■ Computational Methodsmentioning

confidence: 99%

Effects of Electrostatic Interaction on the Formation of a Particle Depletion Zone by Charged Nanoparticles during the Chemical Vapor Deposition of Si Processes

Byun

Yang

Park

et al. 2022

Crystal Growth & Design

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The electrostatic potential energy and surface charge density of charged nanoparticles (CNPs) were calculated via the finite element method (FEM). We combined the FEM results with kinetic Monte Carlo (kMC) simulations to study the dynamics of a nonclassical crystallization system comprising numerous small CNPs and a large CNP. Afterward, we investigated the evolution of a particle depletion zone around the large CNP during the lowtemperature chemical vapor deposition of Si. The FEM calculation results showed that small and large CNPs having like charges attracted each other when they were in close proximity, because opposite charges were induced on the surfaces of particles adjacent to each other. The kMC simulation results showed that this attraction resulted in a relatively small particle depletion zone around the large CNP. During the formation of the depletion zone, charges accumulated on the large CNP. The accumulated charge resulted in repulsion between the small and large CNPs and a gradual expansion of the particle depletion zone. Further analysis indicated that the imbalance between the numbers of positively and negatively charged CNPs influenced the structural evolution of the particle depletion zone.

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Section: ■ Computational Methodsmentioning

confidence: 99%

Effects of Electrostatic Interaction on the Formation of a Particle Depletion Zone by Charged Nanoparticles during the Chemical Vapor Deposition of Si Processes

Byun

Yang

Park

et al. 2022

Crystal Growth & Design

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“…A picture of the original rehabilitation activity board is shown in Figure 1a. Indium tin oxide (ITO) films are widely used for capacitive touch screen panel fabrications due to its transparency, low cost, and conductivity [2].…”

Section: Introductionmentioning

confidence: 99%

“…In this project, a microcontroller -a Texas Instruments MSP430FR2633 -is used to sense the capacitance change when a touch occurs on the activity board. Existing literature has investigated various design patterns of capacitive touch sensors such as diamond-shaped pattern, snowflake-shaped pattern, and fork-shaped pattern [2,3]. In this initial prototype of the project, a conventional single layer diamond-shaped pattern is adopted and investigated.…”

Section: Introductionmentioning

confidence: 99%

Connected capacitive sensor array for upper-extremity motor rehabilitation

Liu

Parkerson

Nelson

2018

Proceedings of the 2018 IEEE/ACM International Conference on Connected Health: Applications, Systems and Engineering Technologi

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This paper proposes a rehabilitation assitant system equipped with a capacitor sensor array (CSA) for persons exhibiting upper-extremity motor impairments. The CSA utilizes mutual capacitance to quantize patients' hand motions on a rehabilitation activity board. The rehabilitation board is equipped with an accelerometer to detect the slope of the activity board, since different inclinations of motions may affect the motor quality post trauma. A microcontroller-a Texas Instruments MSP430FR2633-is used to measure capacitance. A secondary microcontroller-an ATmega 328P with the Arduino firmware-is used to retrieve capacitive sensor and accelerometer data, and transfer data via Bluetooth to a web capable edge device. The edge device hosts a webpage displaying the patient's hand positions and the slope position of the activity board to enable visual feedback during and after rehabilitation sessions.

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“…These results were published as an article [27] and as proceedings [28] and were one of the first pieces of academic literature in this field. Recently, new research has surfaced which talks about electrostatic simulation methodology for capacitive touch panels [74,75]. In [74], touch sensitivity for various patterns was analyzed using simulations.…”

Section: Measuring Sensitivity Of Capacitive Pattern Using Ansys Capa...mentioning

confidence: 99%

“…Fringing fields form the sensing area of a touch panel so they are directly proportional to the sensitivity of a sensor pattern. Similar simulations were performed in [75] using both COMSOL and ANSYS Q3D Method Of Moments (MOM) solvers. The di↵erence between MOM and FEM is that MOM uses integration instead of di↵erentiation for the equation to be solved.…”

Section: Measuring Sensitivity Of Capacitive Pattern Using Ansys Capa...mentioning

confidence: 99%

Large-scale capacitive touch panels : sensor pattern design, sampling and interpolation

Akhtar¹

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Electrostatic Simulation Methodology for Capacitive Touch-Screen Panels

Cited by 5 publications

References 25 publications

Effects of Electrostatic Interaction on the Formation of a Particle Depletion Zone by Charged Nanoparticles during the Chemical Vapor Deposition of Si Processes

Effects of Electrostatic Interaction on the Formation of a Particle Depletion Zone by Charged Nanoparticles during the Chemical Vapor Deposition of Si Processes

Connected capacitive sensor array for upper-extremity motor rehabilitation

Large-scale capacitive touch panels : sensor pattern design, sampling and interpolation

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