Segment-type, twisted nematic liquid-crystal panels with finely striped, two-color filters within the panel are discussed. The panel has a color filter-on-indium tin oxide structure. Two types of printed filter (an offset-printed (OP) filter and a screen-printed (SP) filter) were subjected to heat treatment and evaluated. It was found that an SP filter of about 0.3 mu m has less effect on the operating voltage and availability for multiplexed drive than an OP filter of about 1 mu m in thickness with the same color density. The test results for panel reliability for automotive use are given. The panels can digitally display a vehicle's speed, fuel level and engine revolutions in bargraph format with good legibility using three colors.
Multicolor LCD for automotive applications
Mehrfarben-LCD für die Automobilanwendung
IEEE Transactions on Electron Devices ; 37 , 1 ; 116-120
1990
5 Seiten, 3 Quellen
Aufsatz (Zeitschrift)
Englisch
FLACHER BILDSCHIRM , FLUESSIGKRISTALLANZEIGE , BETRIEBSSPANNUNG , FERTIGUNGSVERFAHREN , FARBFILTER , NEMATISCHER KRISTALL , FARBWIEDERGABE , KRAFTFAHRZEUGELEKTRONIK , VERFUEGBARKEIT , ZUVERLAESSIGKEIT , BETRIEBSSICHERHEIT , DRUCK (GRAPHISCHES VERFAHREN) , SIEBDRUCK , INDIUM , DIGITALANZEIGE , ZINNOXID , WAERMEBEHANDLUNG , KRAFTWAGEN , COLOR DENSITY
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