Display device having an inactive 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.
Claims6
A display device, comprising:
- a display to display an image;
- a power generator to supply a driving voltage to the display;
- and
- a controller to control the display and the power generator and 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 and boost the input power voltage during an active section based on the power control signal to generate the driving voltage, and output the input power voltage during an inactive section;
- a common voltage generator comprising an OP-AMP to receive the driving voltage and convert the driving voltage into a common voltage;
- and
- bypass cut-off logic to cut off a supply of the input power voltage provided to the common voltage generator based on the power control signal to reset the OP-AMP.
Dependencies are inferred from the claim text.