Display device
AssigneeSamsung Display Co., Ltd.
InventorDong-Gyu Kim
Life of this patent
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Abstract
A display device includes a display panel including a reference voltage providing portion configured to apply a first reference voltage from a first reference voltage line to a plurality of readout lines and a pixel portion having a plurality of pixels connected to the readout lines, a scan driver providing a scan signal to the pixels via a plurality of scan lines, a data driver providing a data signal to the pixels via a plurality of data lines, a readout circuit converting voltages of the readout lines to digital data, and a controller cutting off a power based on the digital data.
Claims17
A display device comprising:
- a display panel comprising:
- a reference voltage providing portion configured to apply a first reference voltage from a first reference voltage line to a plurality of readout lines, the first reference voltage being a voltage for detecting a crack in the display panel;
- and
- a pixel portion comprising a plurality of pixels connected to the readout lines;
- a scan driver configured to provide a scan signal to the pixels via a plurality of scan lines;
- a data driver configured to provide a data signal to the pixels via a plurality of data lines;
- a readout circuit configured to convert voltages of the readout lines to digital data, and configured to apply a second reference voltage that is different from the first reference voltage to one of the readout lines;
- and
- a controller configured to cut off a power based on the digital data,
- wherein the reference voltage providing portion comprises a plurality of sensing transistors each comprising:
- a gate electrode coupled to one of the scan lines or to a control line;
- a first electrode coupled to the first reference voltage line;
- and
- a second electrode connected both to the readout circuit via one of the readout lines and to one of the pixels.
A display device comprising:
- a display panel comprising a reference voltage providing portion configured to apply a first reference voltage from a first reference voltage line to a readout line and a pixel portion comprising a plurality of pixels, the first reference voltage being a voltage for detecting a crack in the display panel;
- a scan driver configured to provide a scan signal to the pixels via a plurality of scan lines;
- a data driver configured to provide a data signal to the pixels via a plurality of data lines;
- and
- a readout circuit configured to convert a voltage of the readout line to digital data, and configured to apply a second reference voltage that is different from the first reference voltage to one of the readout lines,
- wherein at least two of the pixels are connected to one of the scan lines and connected to the readout line, and
- wherein the reference voltage providing portion comprises a sensing transistor comprising:
- a gate electrode coupled to one of the scan lines or to a control line;
- a first electrode coupled to the first reference voltage line;
- and
- a second electrode connected both to the readout circuit via the readout line and to the at least two pixels.
Dependencies are inferred from the claim text.