NEMATISCHE FLUESSIGKRISTALLANZEIGE, DIE WAHLWEISE ZU DYNAMISCHER LICHSTREUUNG ODER DOPPELBRECHUNG ERREGBAR IST

The device is suitable for display panels in electronic units for representing different operating states. It consists of a cell (7) filled with a nematic liquid crystal (5) which exhibits negative dielectric anisotropy. The cell (7), which is produced in a sandwich design, has a pair of transparent...

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Bibliographische Detailangaben
Hauptverfasser:	WADA,TOMIO, NONOMURA,KEISAKU
Format:	Patent
Sprache:	ger
Schlagworte:	ADVERTISING ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION 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 FREQUENCY-CHANGING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS SEALS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	The device is suitable for display panels in electronic units for representing different operating states. It consists of a cell (7) filled with a nematic liquid crystal (5) which exhibits negative dielectric anisotropy. The cell (7), which is produced in a sandwich design, has a pair of transparent conducting electrodes (3, 3'). The liquid-crystal molecules are aligned with their longitudinal axis perpendicular to the electrodes (3, 3') by means of a surface-active substance. If an alternating electric field with a frequency lower than a threshold frequency is applied to such a display device, the liquid crystal can be excited to dynamic scattering of light, while when an electric field with a frequency higher than the threshold frequency is supplied the crystal is excited to birefringence of light. In this case, the threshold frequency is in the lower audio frequency range.