公开(公告)号：DE3062918D1

公开(公告)日：1983-06-09

申请号：DE3062918

申请日：1980-02-01

Applicant: IBM

Inventor： MARRELLO VINCENT ,  ONTON AARE ,  RUHLE WOLFGANG

IPC: H05B44/00 ,  G09G3/12 ,  G09G3/30

Abstract: A method of operating an alternating current (AC) excited thin film electroluminensence (ACTEL) device which improves the memory effect and brightness thereof is described. A typical ACTEL device has a thin luminescent layer made of ZnS thin film doped with Mn which is sandwiched between two dielectric layers. ACTEL devices exhibit a brightness versus voltage amplitude hysteresis loop which is commonly referred to as the memory effect. The application of a hybrid AC excitation waveform to the ACTEL device such as that shown in the Figure provides increased brightness and improved memory effect stability. The hybrid waveform has an initial portion 12A that is sufficiently high for efficient carrier generation and a remaining waveform portion 14A that is at a lower level than the initial portion for charge collection and holding purposes.

公开(公告)号：CA1135386A

公开(公告)日：1982-11-09

申请号：CA344003

申请日：1980-01-18

Applicant: IBM

Inventor： MARRELLO VINCENT ,  ONTON AARE ,  RUHLE WOLFGANG

IPC: G09G3/12 ,  G09G3/30 ,  G11C11/42 ,  G11C11/14 ,  H01L33/00

Abstract: A METHOD OF IMPROVING THE MEMORY EFFECT AND BRIGHTNESS OF AN ALTERNATING CURRENT EXCITED THIN FILM ELECTROLUMINSCENT DEVICE A method for improving the memory effect and brightness of an alternating current (AC) excited thin film electroluminensence (ACTEL) device is described. A typical ACTEL device has a thin luminescent layer made of ZnS thin film doped with Mn which is sandwiched between two dielectric layers. ACTEL devices exhibit a brightness versus voltage amplitude hysteresis loop which is commonly referred to as the memory effect. The application of a hybrid AC excitation waveform to the ACTEL device provides increased brightness and improved memory effect stability. The hybrid waveform has an initial portion that is sufficiently high for efficient carrier generation and a remaining waveform portion that is at a lower level than the initial portion for charge collection and holding purposes. SA978040

公开(公告)号：DE2543238A1

公开(公告)日：1976-05-06

申请号：DE2543238

申请日：1975-09-27

Applicant: IBM

Inventor： GUARNIERI C RICHARD ,  LEE KENNETH ,  ONTON AARE

IPC: G11C11/14 ,  G11C19/08 ,  H01F10/00 ,  H01F10/12 ,  H01F10/13 ,  H01F10/16 ,  H01F41/14 ,  H01F10/02

Abstract: A film of magnetic amorphous material capable of supporting bubble domains containing a region therein having a canted direction of magnetic uniaxial anisotropy is described. An example is a magnetic amorphous film having bubble domains therein in which the magnetic uniaxial anisotropy is canted at an angle of 5 DEG from a line perpendicular to the plane of the film. Another example is a film of magnetic amorphous material containing one layer having the magnetic uniaxial anisotropy canted in one direction and a second layer having the magnetic uniaxial anisotropy canted in another direction.