ELECTROWETTING CELLS AND DRIVING METHODS THEREFOR

摘要

An electrowetting cell includes first and second substrates, a spacer, first and second electrodes, a dielectric layer, and a medium. The spacer is disposed between the first and second substrates to substrate define a compartment. The first and second electrodes are disposed on the first and second substrates respectively. The dielectric layer is formed on the first electrode. The medium is filled in the compartment and deformed in accordance with an electric potential difference between the first and second electrodes. One of the first and second electrodes is applied by a driving signal. The driving signal is divided into a plurality of driving sections in a first time period. A first driving section is changed between first and second threshold voltage levels, and a horizontal voltage level is inserted into the first driving section.

主权项

1. An electrowetting cell comprising:
a first substrate; a spacer disposed on the first substrate; a second substrate disposed on the spacer and opposite to the first substrate, wherein the first substrate, the second substrate and the spacer define a compartment; a first electrode disposed on the first substrate; a second electrode disposed on the second substrate; a dielectric layer formed on the first electrode; and a medium filled in the compartment, and deformed in accordance with an electric potential difference between the first and second electrodes, wherein one of the first and second electrodes is applied by a driving signal, the driving signal is generates in a first time period and a second time period, and the driving signal is divided into a plurality of driving sections in the first time period, wherein a first driving section among the plurality of driving sections is changed between a first threshold voltage level and a second threshold voltage level, wherein when the first driving section changes from the first threshold voltage level to the second threshold voltage level, a first horizontal voltage level between the first and second threshold voltage levels is inserted into the first driving section, and wherein when the first driving section changes from the second threshold voltage level to the first threshold voltage level, a second horizontal voltage level between the first and second threshold voltage levels is inserted into the first driving section.