DRIVER CIRCUIT FOR LIGHT-EMITTING DEVICE

A driver circuit for a light-emitting device includes a light-emitting device, a data receiving unit, a storage unit, a driver unit and a voltage divider. The data receiving unit receives a data signal, the storage unit stores a capacitor voltage, and a positive correlation exists between the capaci...

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Bibliographic Details
Main Authors WANG TSUNG-YU, WANG WENUN, LIAO WEN-TUI
Format Patent
LanguageEnglish
Published 10.05.2012
Subjects
ELECTRIC HEATING
ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
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Summary:A driver circuit for a light-emitting device includes a light-emitting device, a data receiving unit, a storage unit, a driver unit and a voltage divider. The data receiving unit receives a data signal, the storage unit stores a capacitor voltage, and a positive correlation exists between the capacitor voltage and the data signal. The driver unit is coupled to the light-emitting device, and the driver unit is turned on to drive the light-emitting device according to the capacitor voltage and to generate a threshold voltage of the driver unit. The voltage divider is coupled between the data receiving circuit and the light-emitting device and turned on by the capacitor voltage to generate a divided voltage. The voltage divider detects a voltage variation in the threshold voltage and in a voltage across the light-emitting device and adjusts the divided voltage according to the voltage variation.
Bibliography:Application Number: US201113290318