Display device
AssigneeLiquavista B.V.
InventorsAnthony John Slack, Bokke Johannes Feenstra
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Abstract
An electrowetting display device includes a control system for changing a configuration of first, second and third fluids by applying a voltage level of a first voltage to a first electrode and by applying a voltage level of a second voltage to a second electrode. The voltage level of the first voltage is selected from a first plurality of voltage levels and the voltage level of the second voltage is selected from a second plurality of voltage levels, the second plurality of voltage levels comprising fewer voltage levels than the first plurality of voltage levels.
Claims25
An electrowetting display device including a picture element, the picture element comprising:
- a space;
- a first surface facing the space;
- a second surface facing the space and the first surface;
- a first fluid, a second fluid and a third fluid, the first fluid and the third fluid being arranged on at least part of the first surface and the second surface, respectively, and the second fluid being immiscible with the first fluid and the third fluid, the first, second and third fluids being within the space;
- and
- a first electrode associated with the first surface and a second electrode associated with the second surface,
- the electrowetting display device comprising a control system for changing a configuration of the first, second and third fluids by applying a voltage level of a first voltage to the first electrode and by applying a voltage level of a second voltage to the second electrode,
- wherein the control system is arranged such that the voltage level of the first voltage is selected from a first plurality of voltage levels and the voltage level of the second voltage is selected from a second plurality of voltage levels, the second plurality of voltage levels comprising fewer voltage levels than the first plurality of voltage levels.
A display device including a picture element for changing a characteristic of radiation passing through the picture element, the picture element comprising:
- a first electrode and a second electrode;
- and
- a first display element and a second display element configurable for changing said characteristic,
- the display device comprising a control system for changing said characteristic by applying a voltage level of a first voltage to the first electrode and a voltage level of a second voltage to the second electrode, to determine a configuration of at least one of the first and second display elements,
- wherein the control system is arranged such that the voltage level of the first voltage is selected from a first plurality of voltage levels and the voltage level of the second voltage is selected from a second plurality of voltage levels, the second plurality of voltage levels comprising fewer voltage levels than the first plurality of voltage levels.
A control system for controlling a picture element comprising:
- a first electrode and a second electrode;
- and
- a first display element and a second display element configurable for changing a characteristic of radiation passing through the picture element,
- the control system being configured to change the characteristic by applying a voltage level of a first voltage to the first electrode and a voltage level of a second voltage to the second electrode, to determine a configuration of at least one of the first and second display elements,
- wherein the control system is configured to select the voltage level of the first voltage from a first plurality of voltage levels and to select the voltage level of the second voltage from a second plurality of voltage levels, the second plurality of voltage levels comprising fewer voltage levels than the first plurality of voltage levels.
A method of controlling a picture element, the method comprising:
- determining a voltage level of a first voltage for applying to a first electrode of the picture element, the determining including selecting the voltage level of the first voltage from a first plurality of voltage levels;
- determining a voltage level of a second voltage for applying to a second electrode of the picture element, the determining including selecting the voltage level of the second voltage from a second plurality of voltage levels, the second plurality of voltage levels including fewer voltage levels than the first plurality of voltage levels;
- generating the first voltage with the voltage level selected from the first plurality of voltage levels;
- generating the second voltage with the voltage level selected from the second plurality of voltage levels;
- transmitting the first voltage to the first electrode, thereby applying the first voltage to the first electrode to determine a configuration of a first display element of the picture element for changing a characteristic of radiation passing through the picture element;
- transmitting the second voltage to the second electrode, thereby applying the second voltage to the second electrode to determine a configuration of a second display element of the picture element for changing the characteristic of radiation.
Dependencies are inferred from the claim text.