LCD and backlight module thereof
AssigneeAu Optronics Corporation
InventorsMing-Chun Hsu, Fu-Tung Chen, Chien-Hung Chen, Hong-Jye Hong, Chih-Kang Wu
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Abstract
A backlight module includes fluorescent lamps, an inverter for supplying power for the lamps, dimming circuits each connecting the lamp in series, a signal processor for converting a video signal into a dimming signal, and a control unit. The lamps are disposed as an array having more than two columns and two rows on a substrate. The control unit electrically connects the signal processor and the dimming circuit and changes the luminance of the lamps by adjusting the dimming circuit according to the dimming signal.
Claims18
A backlight module, comprising:
- a plurality of fluorescent lamps arranged to form an array having more than two columns and two rows on a substrate;
- an inverter electrically connecting the fluorescent lamps to supply power to the fluorescent lamps;
- a plurality of dimming circuits each electrically connecting one of the fluorescent lamps in series and being variable to adjust current flowing through the fluorescent lamp connected in series;
- a signal processor being operable for converting a video signal into a dimming signal;
- and
- a control unit electrically connecting the dimming circuits and the signal processor, the control unit being operable for switching the dimming circuits to adjust the current according to the dimming signal to change the luminance of the fluorescent lamps.
A display, comprising:
- a panel having a plurality of display areas arranged to from a matrix having more than two columns and two rows;
- a backlight module disposed below the panel, comprising:
- a plurality of fluorescent lamps arranged to form an array having more than two columns and two rows on a substrate, the array being aligned to the matrix;
- an inverter electrically connecting the fluorescent lamps to supply power for the lamps;
- a plurality of dimming circuits each electrically connecting one of the fluorescent lamps in series and being variable to adjust current flowing through the fluorescent lamp connected in series;
- a signal processor, being operable for converting a video signal into a dimming signal;
- and
- a control unit, electrically connecting the dimming circuits and the signal processor, the control unit being operable for switching the dimming circuits to adjust the current according to the dimming signal to change the luminance of the fluorescent lamps.
Dependencies are inferred from the claim text.