Light emitting diode backlight module and driving apparatus and method thereof
AssigneeAu Optronics Corporation
InventorsChing-Chou Yu, Chien-Ming Ko, Yueh-Han Li, Hung-Ching Lee
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Abstract
A light emitting diode (LED) backlight module, a driving apparatus and a driving method thereof are provided. The driving apparatus is adapted to drive at least one LED of at least one lighting unit within the LED backlight module. The driving apparatus includes a latch unit and a switch unit. The latch unit is used for receiving a control backlight data and latching the control backlight data during a frame period according to a trigger signal, so as to output a control signal. The switch unit is coupled to the latch unit and the LED for receiving the control signal to determine whether the LED emits or not.
Claims18
A driving circuit, suitable for driving at least a light emitting diode (LED) of at least a lighting unit within an LED backlight module of a liquid crystal display (LCD), the driving circuit comprising:
- a latch unit, for receiving a control backlight data, and latching the control backlight data according to a trigger signal during a frame period, so as to output a control signal;
- and
- a switch unit, coupled to the latch unit and the LED, for receiving the control signal to determine whether the LED emits or not.
A light emitting diode (LED) backlight module, suitable for a liquid crystal display (LCD), the LED backlight module comprising:
- at least a lighting unit, comprising at least an LED;
- and
- at least a driving circuit, for driving the LED, and the driving circuit comprising:
- a latch unit, for receiving a control backlight data, and latching the control backlight data according to a trigger signal during a frame period, so as to output a control signal;
- and
- a switch unit, coupled to the latch unit and the LED, for receiving the control signal to determine whether the LED emits or not.
A driving method, suitable for driving at least a light emitting diode (LED) of at least a lighting unit within an LED backlight module of a liquid crystal display (LCD), the driving method comprising:
- providing a control backlight data and a trigger;
- latching the control backlight data according to the trigger signal during a frame period, so as to output a control signal;
- and
- driving the LED according to the control signal.
Dependencies are inferred from the claim text.