Display device and driving method thereof
AssigneeLG Display Co., Ltd.
InventorsUitaek Jeong, Mookyoung Hong
Life of this patent
Estimating the term…
Abstract
The embodiments relate to a display device and driving method thereof. The display device includes a display panel including a plurality of pixels arranged thereon, a data driver configured to apply a sensing data voltage to the plurality of pixels and output a characteristic value sensed in response to the sensing data voltage as sensing data, and a timing controller configured to compensate video data based on the sensing data and transmit compensated video data and a control signal to the data driver, wherein the timing controller applies a first sensing data voltage to the plurality of pixels in a normal sensing drive mode and a second sensing data voltage higher than the first sensing data voltage to the plurality of pixels in an overdriving sensing drive mode.
Claims15
A display device comprising:
- a display panel comprising a plurality of pixels arranged thereon;
- a data driver configured to apply a sensing data voltage to the plurality of pixels and sense a characteristic value as sensing data in response to the sensing data voltage;
- and
- a timing controller configured to determine compensation data to compensate video data based on the sensing data and transmit the compensation data and a control signal to the data driver,
- wherein the data driver is configured to apply a first sensing data voltage to the plurality of pixels in a normal sensing drive mode and a second sensing data voltage higher than the first sensing data voltage to the plurality of pixels in an overdriving sensing drive mode,
- wherein the data driver is configured to sense, upon a sensing voltage is applied to the pixels during a tracking period, the sensing voltage during a sampling period, to apply the second sensing data voltage to the plurality of pixels during an initialization period in the overdriving sensing drive mode, and to apply the first sensing data voltage lower than the second sensing data voltage to the plurality of pixels during the sampling period.
A method for driving a display device including a display panel including a plurality of pixels arranged thereon, a data driver applying data voltage to the plurality of pixels, and a timing controller controlling the data driver, the method comprising:
- applying a second sensing data voltage to the plurality of pixels during an initialization period;
- charging the pixels with a sensing voltage during a tracking period;
- applying a first sensing data voltage to the pixels and sensing a characteristic of the plurality of pixels as sensing data in response to applying the first sensing data voltage to the pixels during a sampling period;
- and
- compensating video data to be applied to the plurality of pixels based on the sensing data,
- wherein the data driver is configured to apply a first sensing data voltage to the plurality of pixels in a normal sensing drive mode and a second sensing data voltage to the plurality of pixels in an overdriving sensing drive mode,
- wherein the data driver is further configured to sense, upon the sensing voltage is applied to the pixels during the tracking period, the sensing voltage during the sampling period, to apply the second sensing data voltage to the plurality of pixels during an initialization period in the overdriving sensing drive mode, and to apply the first sensing data voltage lower than the second sensing data voltage to the plurality of pixels during the sampling period.
A display device comprising:
- a display panel including a plurality of pixels arranged thereon;
- a data driver configured to apply a first sensing voltage to a pixel in a first sensing drive mode and a second sensing voltage higher than the first sensing voltage to the pixel in a second sensing drive mode, and sense a characteristic of the pixel in response to the first sensing voltage or the second sensing voltage being applied to the pixel,
- wherein the data driver is configured to sense, upon a sensing voltage is applied to the pixels during a tracking period, the sensing voltage during a sampling period, to apply the second sensing data voltage to the plurality of pixels during an initialization period in the overdriving sensing drive mode, and to apply the first sensing data voltage lower than the second sensing data voltage to the plurality of pixels during the sampling period.
Dependencies are inferred from the claim text.