Power converter, display device including power converter, system including display device, and method of driving display device
AssigneeSamsung Display Co., Ltd.
InventorSung-Cheon Park
Life of this patent
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Abstract
A power converter includes a voltage conversion unit that provides a first driving voltage at a first output electrode by converting a power supply voltage in response to a first control signal, the voltage conversion unit being configured to provide a second driving voltage at a second output electrode by converting the power supply voltage after a short detection period, the voltage conversion unit being configured to shut down in response to a third control signal, and a short detection unit that generates the third control signal by comparing a magnitude of a voltage of the second output electrode with a magnitude of a reference voltage during the short detection period.
Claims13
A display device, comprising:
- a display panel comprising a plurality of pixels, the pixels being configured to operate in response to a first driving voltage, a second driving voltage, and a data signal;
- a voltage converter to provide the first driving voltage to the display panel through a first wiring and the second driving voltage to the display panel through a second wiring, the voltage converter is to selectively start an output of the second driving voltage after a detection period which is after an output of the first driving voltage;
- and
- a detector configured to control the output of the first and second driving voltages of the voltage converter based on a magnitude of a wiring voltage corresponding to voltage on the second wiring.
A display device, comprising:
- a display panel comprising a plurality of pixels, the pixels being configured to operate in response to a first driving voltage, a second driving voltage, and a data signal;
- a voltage converter to generate the first and second driving voltages and to provide the first driving voltage to the display panel through a first wiring and the second driving voltage to the display panel through a second wiring, the voltage converter is to selectively start an output of the second driving voltage after a detection period which is after an output of the first driving voltage;
- and
- a detector configured to control the generation of the first and second driving voltages of the voltage converter based on a magnitude of a wiring voltage corresponding to voltage on the second wiring.
Dependencies are inferred from the claim text.