Nichtflüchtiges Speicherelement und Anzeigematrizen sowie deren Anwendung

• Main Author: REDECKER, MICHAEL
• Format: Patent
• Language: German
• Published: 07.02.2008
• Subjects: ADVERTISING; ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION; BASIC ELECTRIC ELEMENTS; CRYPTOGRAPHY; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; DISPLAY; EDUCATION; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; FREQUENCY-CHANGING; INFORMATION STORAGE; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; SEALS; SEMICONDUCTOR DEVICES; STATIC STORES; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

The device has an organic semiconductor active layer (2) between a source and a drain. A ferroelectric gate-insulating layer (5) is formed on an organic active layer, and a gate (6) is formed on the insulating layer. Conductivity of the semiconductor active layer that forms a source-drain channel is controlled by a charge-carrier concentration and indirectly by a boundary potential of the insulating and active layers. An Independent claim is also included for an optically writeable matrix display panel.