LIGHT-EMITTING DEVICE

PROBLEM TO BE SOLVED: To provide a display device in which characteristic change of an organic light-emitting layer due to deterioration or temperature change can be detected, to keep luminance of a light-emitting element constant.SOLUTION: A monitor region is provided, in addition to a pixel portio...

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Bibliographic Details
Main Authors KIMURA TERUHIRO, TAKAMI HIROMI, NAGATSUKA SHUHEI
Format Patent
LanguageEnglish
Published 26.04.2012
Subjects
ADVERTISING
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION
BASIC ELECTRIC ELEMENTS
CRYPTOGRAPHY
DISPLAY
EDUCATION
ELECTRIC HEATING
ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
PHYSICS
SEALS
SEMICONDUCTOR DEVICES
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Summary:PROBLEM TO BE SOLVED: To provide a display device in which characteristic change of an organic light-emitting layer due to deterioration or temperature change can be detected, to keep luminance of a light-emitting element constant.SOLUTION: A monitor region is provided, in addition to a pixel portion for display. A plurality of monitor elements is arranged in the monitor region. A switching circuit is provided so as to prevent a large amount of current from flowing in a short-circuited monitor element among the plurality of the monitor elements. As a result, by monitoring potential change between electrodes of the monitor element, voltage or the current that is supplied to a light-emitting element in the pixel portion for the display can be corrected depending on degradation due to aging or temperature change or the like.
Bibliography:Application Number: JP20110263279