Backlight driving module and liquid crystal display using the same
AssigneesHon Hai Precision Industry Co., Ltd., HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD.
InventorJIE-SONG ZHOU
Life of this patent
Estimating the term…
Abstract
A liquid crystal display (LCD) includes a backlight driving module. The backlight driving module includes a boost circuit, a control chip, and a ferrite bead. The boost circuit includes a metal-oxide-semiconductor-field-effect transistor (MOSFET). The control chip includes a pulse width modulation (PWM) input pin and provides PWM signals to turn on and turn off the MOSFET. One end of the ferrite bead is connected to the PWM input pin, and another end is connected to the gate of the MOSFET.
Claims6
A backlight driving module comprising:
- a boost circuit comprising a metal-oxide-semiconductor-field-effect transistor (MOSFET);
- a control chip comprising a pulse width modulation (PWM) input pin and providing PWM signals to turn on and turn off the MOSFET;
- and
- a ferrite bead with one end connected to the PWM input pin and another end connected to the gate of the MOSFET.
A liquid crystal display (LCD) comprising:
- a backlight driving module comprising:
- a boost circuit comprising a metal-oxide-semiconductor-field-effect transistor (MOSFET);
- a control chip comprising a pulse width modulation (PWM) input pin and providing PWM signals to turn on and turn off the MOSFET;
- and
- a ferrite bead with one end connected to the PWM input pin and another end connected to the gate of the MOSFET.
Dependencies are inferred from the claim text.