A light emitting module of an embodiment comprises: (1-1)th to (1-M)th (where M is a positive integer equal to or greater than 2) light emitting elements connected with each other; (2-1)th to (2-N)th (where N is a positive integer equal to or greater than 1) light emitting elements connected in parallel with a (1-m)th (1≦m≦M) light emitting elements which is one of the (1-1)th to (1-M)th light emitting elements; and an on/off controller controlling to turn the (1-1)th to (1-M)th light emitting elements and (2-1)th to (2-N)th light emitting elements on or off according to a level of an operation signal. The on/off controller comprises a first on/off control unit controlling to turn the (1-m)th light emitting element and (2-1)th to (2-N)th light emitting elements on or off, and a second on/off control unit controlling to turn the remaining light emitting elements on or off, excluding the (1-m)th light emitting element from the (1-1)th to (1-M)th light emitting elements, wherein the first on/off control unit compensates for a change in a second current flowing in the (2-1)th to (2-N)th light emitting elements, depending on the temperature, in conjunction with a first current flowing in the (1-m)th light emitting element.


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    Title :

    LIGHT EMITTING MODULE


    Contributors:
    KWON KI SOO (author) / KIM DO YUB (author) / KIM MIN HAK (author) / YOON JAE HUN (author) / JEONG SEUNG BEOM (author)

    Publication date :

    2017-11-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    F21S Ortsfeste Leuchten , NON-PORTABLE LIGHTING DEVICES / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / G09G Anordnungen oder Schaltungen zur Steuerung oder Regelung von Anzeigevorrichtungen mit statischen Mitteln zur Darstellung veränderlicher Informationen , ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION / H05B ELECTRIC HEATING , Elektrische Heizung



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