Patent Number: 8,441,431

Title: Backlight unit and liquid crystal display using the same

Abstract: A liquid crystal display includes a liquid crystal display panel and a backlight unit. The backlight unit includes a first transistor generating a power voltage supplied through a power line as a driving current based on a driving voltage supplied to a gate electrode of the first transistor, a light emitting element emitting light by the first transistor, a second transistor connected to the first transistor in a current mirror form, a capacitor storing, and at least two switching transistors that equally respond to a selection signal supplied through a selection line and form the same discharge path, so that the power voltage supplied through the power line is sunk to a constant current unit and the driving voltage is stored in the capacitor.

Inventors: Yang; Yeunhyeok (Paju-si, KR)

Assignee: LG Display Co., Ltd.

International Classification: G09G 3/36 (20060101)

Expiration Date: 2021-05-14 0:00:00