Vorrichtung mit Teilchensuspension, Lichtsteuerungsvorrichtung damit und Ansteuerungsverfahren dafür

Details

Veröffentlichungs-Nr.

EP2555049

Aktenzeichen

EP12178471

Anmeldetag

30. Juli 2012

Veröffentlichung

27. April 2016

Erteilung

27. April 2016

Rechtsraum

EP

IPC

G02F1/17G09G3/20G09G3/34

Abstract

The suspended particle device, SPD (1), includes a first substrate (4), a second substrate (5), a first electrode which is the X electrode (6), a second electrode which is the Y electrode (7), a third electrode which is the Z electrode (8), and a suspension sandwiched between the A plate (2) and the B plate (3). The YZ electrode pair (12) includes the Y electrode (7) and the Z electrode (8). The A plate (2) can be formed of the first substrate (4) and the X electrode (6). The B plate (3) can be formed of the second substrate (5), the YZ electrode pair (12) and the ribs (25) made of insulative dielectric material. The ribs (25) may be coloured in black. An area enclosed with ribs (25) is a light control cell and may be formed in a geometry shape. The SPD (1) may include a polarizing plate (40). The suspension includes light-control particles and a disperse medium. The light-control particles are charged. An orientation state of the light-control particles is controlled by applying an AC voltage to at least any one of the X electrode (6), the Y electrode (7), and the Z electrode (8). The light-control particles are dispersed in the suspension or biased to the Z electrode (8) by applying a DC voltage to at least one of the X electrode (6), the Y electrode (7), and the Z electrode (8).

Anmelder

Firma

Hitachi Chemical Co., Ltd.

Land

🇯🇵 Japan

Fachgebiete