Amazon Technologies, Inc.

Mick Evans

Ivar Schram

Paul Vermeulen

Bruce Scott

An electrowetting display device includes a wall layer having a first part located on a first area of a surface of a hydrophobic layer and a second part located on a second area of the surface. The second area has a lower hydrophobicity than the first area.

Electrowetting display device with a wall on a lower hydrophobicity area

The present invention relates to a method of making an electrowetting display device having a plurality of picture elements, each picture element being defined by walls surrounding a display region, the plurality of picture elements covering a first area of a support plate. The method comprises the steps of: applying a hydrophobic layer covering at least the first area; lowering the hydrophobicity of the hydrophobic layer over a second area substantially outside the display regions; forming the walls on the hydrophobic layer over the first area. The present invention further relates to an electrowetting display device.

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Geldrop, Netherlands

Mick Evans