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Digital seven segment display

After the announcement of the twisted nematic liquid crystal display (TN-LCD) in 1971 [3], it quickly came to be used in calculators and digital watches. It had a so-called seven-segment display which was not a dot matrix. TN-LCD dot matrix displays were also made, but the number of scanning fines had been limited to... [Pg.73]

Digital meters provide the same functions as analogue meters but they display the indicated value using a seven-segment LED to give a numerical value of the measurement,... [Pg.90]

Another early widespread commercial use of LEDs was the seven-segment numeric displays used to show digits in calculators and timepieces. However, LEDs require electrical current to operate, and calculators and watches would rather quickly dischai e the batteries of these devices. Often the display on the watches was visible only when a button was pressed to light up the display. However, the advent of liquid crystal displays (LCDs) has rendered these uses mostly obsolete since they require far less energy to operate, and LEDs are needed to light the display at night only. [Pg.1125]

See other pages where Digital seven segment display is mentioned: [Pg.96]    [Pg.262]    [Pg.96]    [Pg.262]    [Pg.26]    [Pg.1131]    [Pg.36]    [Pg.25]    [Pg.25]    [Pg.54]    [Pg.6170]    [Pg.90]    [Pg.121]    [Pg.203]    [Pg.1124]    [Pg.948]    [Pg.261]    [Pg.1012]    [Pg.90]    [Pg.157]    [Pg.396]    [Pg.96]   
See also in sourсe #XX -- [ Pg.96 , Pg.107 ]



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