Electrowetting display device
AssigneeLiquavista B.V.
InventorsBokke Johannes Feenstra, Andrea Giraldo, Anthony John Slack, Kurt Petersdorff Reynhart
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Abstract
An electrowetting display device includes a greyscale picture element layer having at least one first picture element having a first fluid configurable to provide a greyscale display state, and a colour picture element layer having at least one second picture element having a second fluid configurable to provide a colour display state.
Claims25
An electrowetting display device comprising:
- a greyscale picture element layer comprising at least one first picture element having a first fluid configurable to provide a greyscale display state;
- a colour picture element layer comprising at least one second picture element having a second fluid configurable to provide a colour display state, each of the at least one first picture element and the at least one second picture element having a display area for providing a display effect thereover;
- and
- a control system arranged to change a configuration of the first fluid and the second fluid by changing a voltage applied to at least one first electrode associated with the at least one first picture element and at least one second electrode associated with the at least one second picture element, respectively.
A method of manufacturing an electrowetting display device comprising:
- providing a greyscale picture element layer comprising at least one first picture element having a first fluid configurable to provide a greyscale display state;
- providing a colour picture element layer comprising at least one second picture element having a second fluid configurable to provide a colour display state,
- each of the at least one first picture element and the at least one second picture element having a display area for providing a display effect thereover;
- and
- providing a control system arranged to change a configuration of the first fluid and the second fluid by changing a voltage applied to at least one first electrode associated with the at least one first picture element and at least one second electrode associated with the at least one second picture element, respectively.
A display controller for controlling an electrowetting display device comprising a greyscale picture element layer comprising at least one first picture element having a first fluid configurable to provide a greyscale display state;
- and a colour picture element layer comprising at least one second picture element having a second fluid configurable to provide a colour display state, each of the at least one first picture element and the at least one second picture element having a display area for providing a display effect thereover,
- the display controller being configured to apply a voltage to at least one first electrode associated with the at least one first picture element to change a configuration of the first fluid and thereby change the greyscale display state, and to apply a voltage to at least one second electrode associated with the at least one second picture element to change a configuration of the second fluid and thereby change the colour display state.
Dependencies are inferred from the claim text.