Display apparatus and method of operating the same
AssigneeSamsung Display Co., Ltd.
InventorsHYUN-UK OH, Jl-TAE KIM
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Abstract
A display apparatus includes a display panel and a panel driver. The display panel includes a first pixel including a first organic light emitting diode (OLED). The panel driver applies a first voltage to an anode electrode of the first OLED while a first frame image is displayed on the display panel if a grayscale of the first frame image is lower than a first reference grayscale.
Claims33
A display apparatus comprising:
- a display panel comprising a first pixel including a first organic light emitting diode (OLED);
- and
- a panel driver configured to apply a first voltage to an anode electrode of the first OLED while a first frame image is displayed on the display panel if a grayscale of the first frame image is lower than a first reference grayscale.
A method of operating a display apparatus comprising a display panel including a first pixel, the method comprising:
- comparing a grayscale of a first frame image displayed on the display panel with a first reference grayscale;
- and
- applying a first voltage to an anode electrode of a first organic light emitting diode (OLED) included in the first pixel while the first frame image is displayed on the display panel if a result of the comparing indicates the grayscale of the first frame image is lower than the first reference grayscale.
A display apparatus comprising:
- a display panel comprising a first pixel, the first pixel including:
- a first organic light emitting diode (OLED);
- and
- a first initialization circuit connected to the first OLED;
- and
- a panel driver configured to generate a first initialization control signal by comparing a grayscale of a first partial image displayed on the first pixel with a first reference grayscale,
- wherein when the first initialization control signal is activated, the first initialization circuit is enabled and applies an initialization voltage to the first OLED while the first partial image is displayed on the first pixel.
A display apparatus comprising:
- a display panel including a plurality of pixels;
- and
- a panel driver configured to modify a first frame image displayed on the display panel if a grayscale of the first frame image is lower than a first reference grayscale and if a grayscale of a second frame image displayed on the display panel is higher than a second reference grayscale,
- wherein the first and second frame images are two consecutive images.
A display apparatus comprising:
- a display panel comprising a pixel including a first transistor having a first non-gate electrode connected to a node receiving a first data signal and an organic light emitting diode (OLED);
- and
- a controller configured to receive a second data signal output by a second non-gate electrode of the first transistor,
- wherein the controller is configured to selectively disable the OLED based on how the second data signal compares to a first reference grayscale and a second reference grayscale that is higher than the first reference grayscale.
Dependencies are inferred from the claim text.