Active matrix ewod device and method of driving thereof
Assigneec/o Sharp Life Science (EU) Limited
InventorBenjamin James HADWEN
Life of this patent
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Abstract
An AM-EWOD device comprises: first and second substrates (72,36); first and second array element electrodes (38A, 38B) disposed on the first substrate (72) and defining first and second array elements in the AM-EWOD device; a reference electrode (28) disposed on the first substrate (72); a sensor; and a reference electrode drive circuit (50). The reference electrode drive circuit (50) is configured to drive the reference electrode with a first voltage waveform for actuating an array element or with a second voltage waveform different from the first voltage waveform when performing a sensing operation.
Claims19
An AM-EWOD device comprising:
- a plurality of array element electrodes disposed on a first substrate and defining respective array elements in the AM-EWOD device;
- a reference electrode disposed on the first substrate;
- a sensor;
- and
- a reference electrode drive circuit;
- wherein the reference electrode drive circuit is configured to drive the reference electrode with any one of a first voltage waveform for actuating an array element and a second voltage waveform different from the first voltage waveform when performing a sensing operation using the sensor.
A method of driving an AM-EWOD device, the device comprising a plurality of array element electrodes disposed on a first substrate and defining respective array elements, a reference electrode disposed on the first substrate, and a sensor;
- the method comprising driving the reference electrode with any one of a first voltage waveform for actuating an array element and a second voltage waveform different from the first voltage waveform when performing a sensing operation.
Dependencies are inferred from the claim text.