Display device including power converter
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.
Claims14
A display device, comprising:
- a display panel including 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 that provides the first driving voltage to the display panel through first wiring and the second driving voltage to the display panel through second wiring and controls a length of a detection period, the voltage converter selectively starting an output of the second driving voltage after the detection period, the detection period being 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 including 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 that generates the first and second driving voltages and provides the first driving voltage to the display panel through first wiring and the second driving voltage to the display panel through second wiring;
- 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,
- wherein the voltage converter controls a length of a detection period, the detection period being after an output of the first driving voltage.
Dependencies are inferred from the claim text.