BACKLIGHT UNIT AND DISPLAY APPARATUS HAVING THE SAME

PURPOSE: A backlight unit and a display device including the same are provided to reduce power consumption by controlling the quantity of currents without repeatedly turning on and off the output terminal of a light source driving IC to drive a light source unit. CONSTITUTION: A current generating u...

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Bibliographic Details
Main Authors CHOI, KYUNG UK, LEE, JEONG BONG, KIM, CHANG SIN, KANG, BYEONG DOO
Format Patent
LanguageEnglish
Korean
Published 17.09.2013
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:PURPOSE: A backlight unit and a display device including the same are provided to reduce power consumption by controlling the quantity of currents without repeatedly turning on and off the output terminal of a light source driving IC to drive a light source unit. CONSTITUTION: A current generating unit (112) generates a first current and a second current. A current level control unit (111) controls the first current in response to the duty ratio information of a pulse width modulation signal which is inputted. A voltage providing unit (113) outputs a first voltage which corresponds to the second current. An output buffer unit (114) outputs the first voltage which is provided from the voltage providing unit. A driving switch part (115) includes a plurality of transistors which correspond to output buffers. [Reference numerals] (111) Current level control unit; (300) Control unit
Bibliography:Application Number: KR20120023608