Stability of Particle Movement in Reflective Electronic Displays by Analysis of the Response Time

In this study, we propose a measurement system for extracting the response time of negatively and positively charged particles having contrasting colors. The system consists of a laser, a photodiode, a shield box, a power supply, and an oscilloscope. The response times measured by this system are used to analyze the movement of oppositely charged particles, to determine the appropriate driving waveform, and to the filtering voltage of the particle-moving method. The particle-moving method controls the response times and the electrical balance of oppositely charged particles in a panel.