Display device having power reset mode
AssigneeSamsung Display Co., Ltd.
InventorsYong-sik Hwang, Sanghyun Park, Kyungmo Lee
Life of this patent
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Abstract
A display device includes a power generator to supply a driving voltage to the display and a controller to control the display and the power generator and to generate a power control signal. The power generator includes a DC-DC converter and bypass cut-off logic. The DC-DC converter receives an input power voltage and the power control signal, selectively boosts the input power voltage based on the power control signal, and generates the driving voltage. The bypass cut-off logic selectively cuts off supply of the input power voltage to the DC-DC converter based on the power control signal.
Claims14
A display device, comprising:
- a display to display an image;
- a power generator to supply a driving voltage to the display and the power generator including an OP-AMP to receive the driving voltage as power;
- and
- a controller to control the display and the power generator and to generate a power control signal, wherein the power generator includes:
- a DC-DC converter to receive an input power voltage and the power control signal, selectively boost the input power voltage based on the power control signal, and generate the driving voltage;
- and
- a bypass cut-off logic to selectively cut-off supply of the input power voltage to the DC-DC converter based on the power control signal and to selectively cut-off supply of the driving voltage to the OP-AMP to reset the OP-AMP.
Dependencies are inferred from the claim text.