Display device and guide lamp including same

A display device (1) includes light emitting sections (36,37) of different luminous colors disposed between anode and cathode electrodes, current control units (34,35) for controlling currents supplied to the light emitting sections (36,37) to desired current levels, respectively, and an emergency p...

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Bibliographic Details
Main Authors NISIMURA TADASI, OKAWA MASANAO, UKEGAWA SHIN, HIROSE HIROYUKI, TSUZUKI YOSHINORI, KAWACHI HIDEHARU
Format Patent
LanguageChinese
English
Published 31.08.2011
Subjects
ADVERTISING
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION
CRYPTOGRAPHY
DISPLAY
EDUCATION
ELECTRIC HEATING
ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
PHYSICS
SEALS
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Summary:A display device (1) includes light emitting sections (36,37) of different luminous colors disposed between anode and cathode electrodes, current control units (34,35) for controlling currents supplied to the light emitting sections (36,37) to desired current levels, respectively, and an emergency power supply (33) for supplying a current to the current control units (34,35) in an emergency in which a commercial power source (20) does not perform a desired function. When operated by the emergency power supply, the current control units turn on and off the light emitting sections (36,37) of different luminous colors such that they are turned on during different periods of time. When the emergency power supply is used, the display device (1) controls turning on of the planar light emitting element using an organic EL light emitting element depending on luminous colors thereof, thereby suppressing the power consumption of the emergency power supply.
Bibliography:Application Number: CN201110045112