Patent ID: 11862105
Assignee: LG DISPLAY CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 13:
14. A display device comprising:
a display panel including a first display area comprising a first plurality of pixels, and a second display area comprising a second plurality of pixels, each pixel from the first plurality of pixels and the second plurality of pixels including a corresponding light emitting element;
a data driver circuit configured to output a plurality of data voltages of an image to the first plurality of pixels and the second plurality of pixels;
a gate driver configured to output a plurality of scan signals to the first plurality of pixels and the second plurality of pixels; and
a power supply configured to generate a low-potential power supply voltage that is applied to a corresponding light emitting element included in each pixel from the first plurality of pixels and the second plurality of pixels, the low-potential power supply voltage switching between a first level such that the light emitting element in each respective pixel is capable of emitting light, and a second level that is greater than the first level such that the light emitting element in each respective pixel cannot emit light,
wherein a frame period of the display device includes an addressing period during which the plurality of data voltages of the image and the plurality of scan signals are output to the first plurality of pixels and the second plurality of pixels, and a blank period during which the plurality of data voltages and the plurality of scan signals are not output to the first plurality of pixels and the second plurality of pixels, and during the addressing period the low-potential power supply voltage switches from the second level to the first level,
wherein the display device is configured to operate in one of a plurality of modes where each mode has a corresponding a duty ratio of the first level of the low-potential power supply voltage and the second level of the low-potential power supply voltage from a plurality of different duty ratios,
wherein during a first portion of the addressing period the low-potential power supply voltage is at the second level such that none of the first plurality of pixels in the first display area emit light and none of the second plurality of pixels in the second display area emit light, and during a second portion of the addressing period that is subsequent the first portion, the low-potential power supply voltage is at the first level such that the first plurality of pixels in the first display area emit light to display a first part of the image in the first display area and at least a portion of the second plurality of pixels in the second display area emit light to display at least a portion of a second part of the image in the second display area.