Electroluminescent display with memory effect and half-tones

Details Electroluminescent display with memory effect and half-tones Electroluminescent display with memory effect and half-tones

1990-08-20

1992-09-08

Oberley, Alvin E.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340793, 34082581, 3151693, G09G 330

Patent

active

051462133

ABSTRACT:
Electroluminescent display with memory effect and half-tones. Each row electrode (L) is subdivided into several subelectrodes (L1,L2) and/or each column electrode (C) is subdivided into several subelectrodes (C1,C2). The row subelectrodes receive different holding voltages (Fe1,Fe2). Thus, each eldim (E) is broken down into subeldims (el1,el2,etc.) whereof the luminance is defined by the surface and the holding frequency. Thus, the juxtaposing of these luminances gives half-tones. Application to displays.

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