Light source module for display device and display device having the same
AssigneeSamsung Electronics Co., Ltd.
InventorsByoung-Dae Ye, Gi-Cherl Kim, Byung-Choon Yang, Eui-Jeong Kang
Life of this patent
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Abstract
A light source module comprises a light source including a plurality of light emitting units and a voltage current source for supplying driving power to the light source according to a plurality of luminance control signals. The luminance control signals are dimming signals. The light source module also comprises a multi-channel current controller for adjusting luminance of the plurality of light emitting units respectively according to the plurality of luminance control signals.
Claims19
A light source module, comprising:
- a light source including a plurality of light emitting units;
- a voltage current source for supplying driving power to the light source according to a plurality of luminance control signals, the luminance control signals being dimming signals;
- and
- a multi-channel current controller for adjusting luminance of the plurality of light emitting units respectively according to the plurality of luminance control signals.
A method for driving a light source module, comprising:
- providing a driving power to a plurality of light emitting units;
- providing a plurality of luminance control signals, as dimming signals, to a multi-channel current controller connected to the plurality of light emitting units to allow the plurality of light emitting units to emit light;
- and
- controlling operation of a voltage current source using the plurality of luminance control signals, the voltage current source providing the driving power to the plurality of light emitting units.
A display device, comprising:
- a display panel;
- a controller for controlling operation of the display panel;
- a light source which includes a plurality of light emitting units and provides light to the display panel;
- a voltage current source for supplying driving power to the light source according to a plurality of luminance control signals, the luminance control signals being dimming signals;
- and
- a multi-channel current controller for adjusting luminance of the plurality of light emitting units respectively according to the plurality of luminance control signals.
Dependencies are inferred from the claim text.