An electrophoretic display, its properties, model, and addressing

Optical Properties of Nonaqueous Suspensions in Electric Fields

“…For instance, Fig. 4 shows the dependence of the A Å KC, [ 2 ] absorption coefficient at wavelengths of 450, 550, and 700 nm on the concentration for suspensions of red particles. where K is a constant ( extinction factor ) and C is the particle Although the plots for each light give a straight line, the slope of which decreases with increasing wavelength, the absorption coefficient is low at the 700-nm wavelength (red light ) for suspensions of red particles.…”

“…However, in the case of highly absorbing pressed by the combination of Eqs. [1] and [2 ] . The absorp-particles, the attenuation of light occurs in a thin layer of tion experiments in zero fields imply that the suspensions are particles placed on the electrode surface.…”

The microscopic physics of electronic paper revealed

“…There is no explanation for the measured delay time between application of the electric field and the optical response of the display [1,8]. In Fig.…”

“…1, it can be seen that the optical response lags behind the application of the external field. Hopper and Novotny [8] found a theoretical model for the optical response of a reflective electrophoretic display. They assume a normal distribution for the pigment velocity during switching.…”

“…In our system, we have r ¼ 0:804 g=cm 3 ; v ¼ 100 mm=s; r ¼ 0.4 mm; h ¼ 0:003875 kg=ms: Values for the fluid density and viscosity came from the data sheet of the product: Isopar P. The fluid velocity came from matching of the Hopper and Novotny model [8] to the results found in Ref. [1].…”