Lg Display Co., Ltd.

Jong Ki Ahn

Sung Yong Park

Jeong Deuk Yeo

A device for driving a backlight assembly includes a controller for outputting a control signal, a switching unit for outputting a DC square wave voltage in response to the control signal, an inverter for converting the DC square wave voltage into an AC voltage and a lamp for emitting light in response to the AC voltage, the lamp includes first and second glass tube portions having respective one ends bent and connected integrally to each other, first and second electrodes respectively formed at respective other ends of the first and second glass tube portions and a third electrode formed at the bent portion of the first and second glass tube portions, wherein electrical characteristics of the lamp are detected through the third electrode, wherein the electrical characteristics include voltage, current and impedance of the lamp.

Lamp and driving device for backlight assembly having the same

A backlight unit having a supplementary lamp for a smooth starting operation includes multiple light-emitting lamps arranged in one direction on a cover bottom; an inverter printed circuit board (PCB) provided at one rear side or both rear sides of the cover bottom; a first hole provided at a predetermined portion of the inverter PCB; a supplementary lamp provided in the first hole of the inverter PCB; and a second hole provided at a predetermined portion of the cover bottom corresponding to the supplementary lamp.

Growing community of inventors

Daegu-si, South Korea

Jong Ki Ahn