Driving controller, display device having the same, and driving method of display device

    公开(公告)号:US11823607B2

    公开(公告)日:2023-11-21

    申请号:US17740290

    申请日:2022-05-09

    CPC classification number: G09G3/2007 G09G3/3225 G09G2320/0247 G09G2330/021

    Abstract: A driving controller of a display device, the controller including a segment divider configured to divide the image signal into a plurality of segments and define a predetermined number of adjacent segments among the plurality of segments as a segment block, an image signal adder configured to add up a gray scale value of the image signal of each of the predetermined number of adjacent segments and output the added-up gray scale values, an average gray scale calculator configured to receive the added-up gray scale values and output an average gray scale value, a correction circuit configured to output corrected added-up gray scale values obtained by adding a weight value to each of the added-up gray scale values on the basis of the average gray scale value, and a driving frequency determiner configured to determine the driving frequency of the display device on the basis of the corrected added-up gray scale values.

    Display device
    65.
    发明授权

    公开(公告)号:US11417268B2

    公开(公告)日:2022-08-16

    申请号:US17341323

    申请日:2021-06-07

    Abstract: A display device is capable of improving the image quality, the display device including: a display panel; a pixel on the display panel and including at least one light emitting element; a timing controller configured to receive an image data signal of the pixel and to compensate for a gray value of the image data signal based on the number of light emitting elements of the pixel to generate a compensated image data signal; and a data driver configured to select a compensation data signal corresponding to the compensated image data signal from the timing controller and to apply the compensation data signal to the pixel.

    Display apparatus and method of driving the same

    公开(公告)号:US11264446B2

    公开(公告)日:2022-03-01

    申请号:US16843637

    申请日:2020-04-08

    Abstract: A display apparatus includes: a display panel configured to display an image based on input image data; a gate driver configured to output a gate signal to the display panel; a data driver configured to output a data voltage to the display panel; a driving controller configured to control an operation of the gate driver and an operation of the data driver, to determine a normal driving mode and a low frequency driving mode based on the input image data, and to determine a driving frequency of the display panel based on the input image data; and a touch driver configured to detect a touch event occurring on the display panel, and to output a touch interrupt signal representing the touch event to the driving controller.

    Pixel circuit
    69.
    发明授权

    公开(公告)号:US10977998B2

    公开(公告)日:2021-04-13

    申请号:US16943293

    申请日:2020-07-30

    Abstract: A pixel circuit includes a main-circuit that controls an organic light-emitting element by controlling a driving current to flow into the organic light-emitting element and a sub-circuit including a first compensation transistor including a gate terminal which receives a first gate signal, a second compensation transistor including a gate terminal which receives a second gate signal, and an initialization transistor including a gate terminal which receives an initialization signal. Here, in a low-frequency driving mode, a driving frequency of the first gate signal is N hertz (Hz), a driving frequency of the initialization signal is N Hz, a driving frequency of the second gate signal is M Hz, the first compensation transistor and the initialization transistor are turned on during a first time duration in N non-light-emitting periods per second, and the second compensation transistor is turned on during a second time duration in M non-light-emitting periods per second.

    Display device
    70.
    发明授权

    公开(公告)号:US10679566B2

    公开(公告)日:2020-06-09

    申请号:US15843367

    申请日:2017-12-15

    Abstract: Provided herein may be a display device. The display device may include a substrate, a base layer, a first protrusion and a second protrusion. The substrate may include a pixel area, and a peripheral area surrounding the pixel area. The base layer may be disposed on the pixel area, and include a plurality of island patterns on which respective pixels are provided, and a plurality of bridge patterns coupling the adjacent island patterns to each other, the plurality of island patterns and the plurality of bridge patterns disposed on the first area. The first protrusion and the second protrusion may be provided on the base layer.

Patent Agency Ranking