Lamp driving device for liquid crystal display device
First Claim
1. A lamp driving device for driving a plurality of lamps in a liquid crystal display device, comprising:
- an inverter substrate;
a plurality of transformers on the inverter substrate to supply a high voltage AC waveform to each of the lamps; and
a plurality of pattern capacitors on the inverter substrate to limit the electric current supplied to each of the lamps, the pattern capacitors including a plurality of capacitor patterns on a front surface of the inverter substrate with a designated distance therebetween and a first ground line on a rear surface of the inverter substrate overlapping the capacitor patterns.
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Accused Products
Abstract
A lamp driving device for driving a plurality of lamps in a liquid crystal display device and a liquid crystal display device using a lamp driving device are provided. The lamp driving device includes an inverter substrate, a plurality of transformers on the inverter substrate to supply a high voltage AC waveform to each of the lamps; and a plurality of pattern capacitors on the inverter substrate to limit the electric current supplied to each of the lamps. The patterns capacitors have a plurality of capacitor patterns on a front surface of the inverter substrate with a designated distance therebetween and a first ground line on a rear surface of the inverter substrate overlapping the capacitor patterns.
35 Citations
21 Claims
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1. A lamp driving device for driving a plurality of lamps in a liquid crystal display device, comprising:
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an inverter substrate;
a plurality of transformers on the inverter substrate to supply a high voltage AC waveform to each of the lamps; and
a plurality of pattern capacitors on the inverter substrate to limit the electric current supplied to each of the lamps, the pattern capacitors including a plurality of capacitor patterns on a front surface of the inverter substrate with a designated distance therebetween and a first ground line on a rear surface of the inverter substrate overlapping the capacitor patterns. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A liquid crystal display device, comprising:
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a liquid crystal display panel;
a direct illumination type backlight unit having a plurality of lamps to provide light to the liquid crystal display panel;
an inverter substrate having a plurality of transformers to supply a high voltage AC waveform to each of the lamps; and
a plurality of pattern capacitors on the inverter substrate to limit the electric current supplied to each of the lamps, the pattern capacitors including a plurality of capacitor patterns on a front surface of the inverter substrate with a designated distance there between and a first ground line on a rear surface of the inverter substrate overlapping the capacitor patterns. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification