Display Devices

A drive circuit of a display device comprising a capacitive display (H1) and a further display H2. The drive circuit is arranged to provide to the capacitive display, such as an electroluminescent display, an AC drive signal at a first, high voltage from a low voltage power source such that, in use,...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	FRYER CHRISTOPHER JAMES NEWTON, BLAKESLEY RICHARD GUY
Format:	Patent
Sprache:	eng
Schlagworte:	ADVERTISING ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION CRYPTOGRAPHY DISPLAY EDUCATION ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY PHYSICS SEALS
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Beschreibung
Zusammenfassung:	A drive circuit of a display device comprising a capacitive display (H1) and a further display H2. The drive circuit is arranged to provide to the capacitive display, such as an electroluminescent display, an AC drive signal at a first, high voltage from a low voltage power source such that, in use, the drive circuit is repeatedly charged and discharged. The drive circuit is further arranged such that, when the capacitive display discharges, a discharge current from the display is supplied at a second, lower voltage to the further display. In the way energy from the capacitive display is used to drive a further display rather than being discarded.