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US 2017/0249882 A1Published application
Display device and method of compensating degradation
AssigneeSamsung Display Co., Ltd.
InventorWook Lee
Life of this patent
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Abstract
A display device includes a display panel including a pixel electrically connected to a feedback line, a sensor electrically connected to the feedback line, the sensor being configured to measure an impedance of the pixel in response to a first control signal, and to measure a driving current flowing through the pixel in response to a second control signal, and a timing controller configured to selectively generate the first control signal and the second control signal based on an aging time of the display panel.
Claims20
A display device comprising:
- a display panel comprising a pixel electrically connected to a feedback line;
- a sensor electrically connected to the feedback line, the sensor being configured to measure an impedance of the pixel in response to a first control signal, and to measure a driving current flowing through the pixel in response to a second control signal;
- and
- a timing controller configured to selectively generate the first control signal and the second control signal based on an aging time of the display panel.
1 more element
A display device comprising:
- a display panel comprising a pixel electrically connected to a feedback line;
- a sensor electrically connected to the feedback line, the sensor being configured to measure an impedance of the pixel in response to a first control signal, and to measure a driving current flowing through the pixel in response to a second control signal;
- and
- a timing controller configured to selectively generate the first control signal and the second control signal based on input data that comprises a grayscale value corresponding to the pixel.
1 more element
A method of compensating degradation, the method comprising:
- determining when an aging time of a display panel exceeds a reference time, the display panel comprising a pixel electrically connected to a feedback line;
- and
- measuring an impedance of the pixel when the aging time is less than the reference time.
Dependencies are inferred from the claim text.