LED DISPLAY UNIT

PROBLEM TO BE SOLVED: To provide an LED display unit capable of eliminating the saturation of brightness with a relatively simple circuit configuration reduced in noisy light emission and also being compatible especially even at the time of dark brightness display, and also dealing with high frequen...

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Bibliographische Detailangaben
1. Verfasser:	NAGAI YOSHIFUMI
Format:	Patent
Sprache:	eng
Schlagworte:	ADVERTISING ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION BASIC ELECTRIC ELEMENTS CRYPTOGRAPHY DISPLAY EDUCATION ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY PHYSICS SEALS SEMICONDUCTOR DEVICES
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an LED display unit capable of eliminating the saturation of brightness with a relatively simple circuit configuration reduced in noisy light emission and also being compatible especially even at the time of dark brightness display, and also dealing with high frequency drive of display data. SOLUTION: This LED display unit has an LED lighting means to control the lighting time of each LED based on the display data. Especially, the LED display unit is provided with a 1st pulse modulation means to output a pulse width or a pulse amplitude corresponding to a step data inputted to the LED lighting means, a 2nd pulse modulation means to adjust the pulse amplitude or pulse width to the step data based on a saturated brightness correction data, and an LED driving means to turn on the LED by the output pulse adjusted by the 1st and 2nd pulse modulation means.