SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE FOR DRIVING LIQUID CRYSTAL DISPLAY

PURPOSE: A semiconductor integrated circuit for driving a liquid crystal display is provided to minify the size of a chip by reducing the number of external components. CONSTITUTION: A source driver circuit(210) operates a source line of a liquid crystal panel(300) according to an image signal. A ga...

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Bibliographic Details
Main Authors KAWASE YASUSHI, AKIBA TAKESADA, MIYAMOTO NAOKI, NAGATA YASUSHI, ISHIDA SUSUMU, SHIBA KAZUYOSHI
Format Patent
LanguageEnglish
Korean
Published 11.10.2012
Subjects
ADVERTISING
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION
CRYPTOGRAPHY
DISPLAY
EDUCATION
ELECTRICITY
PHYSICS
SEALS
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Summary:PURPOSE: A semiconductor integrated circuit for driving a liquid crystal display is provided to minify the size of a chip by reducing the number of external components. CONSTITUTION: A source driver circuit(210) operates a source line of a liquid crystal panel(300) according to an image signal. A gate driver circuit(220) sequentially scans gate lines. A common driver circuit(230) applies a common voltage(VCOM) to an electrode common to each pixel. A power circuit(240) for LED generates a driving voltage. A controller(260) controls the inside of the whole chip. An oscillator circuit(270) generates a clock as an internal reference. A timing control circuit(280) generates a signal which gives an operation timing. A RAM(290) for display stores image data to be displayed on the liquid crystal panel. [Reference numerals] (210) Source driver; (220) Gate driver; (230) Common driver; (240) Power supply circuit for LCD; (261) Index register; (263) Data register; (280) Timing controller; (290) Display RAM; (300) LCD channel; (AA) Source control signal; (BB) Controller; (DD) Power supply circuit control signal; (EE) VCOM control signal
Bibliography:Application Number: KR20120102129