DISPLAY ELEMENT DRIVING METHOD

PROBLEM TO BE SOLVED: To provide an element driving method capable of reducing the cost of a display device such as portable display device, for example, non-contact IC card. SOLUTION: Upon the driving of a planar state of cholesteric liquid crystal cell, a pulse voltage is applied to the liquid cry...

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Hauptverfasser:	SUGIMURA YOSHIYASU, YABE YOSHIKAZU, YAMAGISHI FUMIO, NOSE MASAKI, HASHIMOTO SHIGERU, TOMITA JUNJI, KIJINO FUTOSHI, HIRANO TAKAHIRO, SHINKAI TOMOHISA, NISHIDE KENZO, BABA SHUNJI
Format:	Patent
Sprache:	eng
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:	PROBLEM TO BE SOLVED: To provide an element driving method capable of reducing the cost of a display device such as portable display device, for example, non-contact IC card. SOLUTION: Upon the driving of a planar state of cholesteric liquid crystal cell, a pulse voltage is applied to the liquid crystal cell, thereafter, a driving impedance on the power source side is set to be a value lower than the impedance of the liquid crystal cell and, at the same time, an applied voltage is made to be zero. Further, on the driving to a focal conic state, a pulse voltage is applied and, thereafter, the driving impedance is set to be a value higher than the impedance of the liquid crystal cell. COPYRIGHT: (C)2008,JPO&INPIT