The present invention provides a liquid crystal display panel and an alignment method of the liquid crystal display panel. By inputting a voltage equal to a pixel voltage into data black-matrix less (DBS) electrodes at a gray scale 255, rotation of liquid crystals at the DBS electrodes can be consistent with rotation of liquid crystals at the pixel electrodes during an alignment process. Therefore, the present invention improves brightness at the DBS electrodes of the liquid crystal display panel at the gray scale 255, and increases light transmittance of the liquid crystal display panel.

A display device includes a display panel, a scan driver, a data compensator, and a data driver. The display panel includes a first area and a second area distinguished from each other along a scan direction. Each of the first and second areas include pixels. The scan driver is configured to sequentially provide scan signals to the display panel along the scan direction. The data compensator is configured to: detect a pattern in which a difference between adjacent grayscale values in image data is greater than a reference value; and generate compensated image data by compensating for grayscale values corresponding to the second area in the image data based on the pattern corresponding to the first area. The data driver is configured to: generate data signals based on the compensated image data; and provide the data signals to the display panel.

Provided are a mura compensation circuit which prevents a change in color of a pixel upon mura compensations for the pixel and a driving apparatus for a display applying the same. The mura compensation circuit includes a mura memory configured to store mura information including location information of a pixel having mura and compensation values for colors thereof, a gain adjustment unit configured to provide adjustment compensation values generated by applying an adjustment gain having an identical ratio to the compensation values for the colors of the pixel, and a mura compensation unit configured to receive display data of the colors of the pixel and to perform mura compensations on the display data of the colors of the pixel using the adjustment compensation values corresponding to the location information.

The present disclosure provides a panel display optimization method, a display panel, and a storage medium. The panel display optimization method includes a region acquisition step, an adjustment step, and a high-low gray level step. The present disclosure is used to make processing coefficients of high-low gray levels of pixels to be processed having farther boundaries be greater according to distances from the pixels to be processed to the boundaries of a first pixel region, a second pixel region, and a third pixel region, that is, according to forward transitional spaces and backward transitional spaces to adjust the processing coefficients of the high-low gray levels. This further reduces graininess of the panel and improves visual quality of the panel after performing high-low gray level processing on adjusted pixels.

A method and device for adjusting a display parameter, and a display device. An ambient brightness level is used as a criterion to adjust a brightness level of an intermediate gray level of a displayed image, such that a corresponding display parameter can be adjusted to be closer to the criterion within an appropriate allowable floating range, thereby providing a displayed image that is safe and comfortable for the eyes. The method comprises: detecting an ambient brightness level (101); determining an adjustment parameter of a display device corresponding to a preset condition, the preset condition comprising a difference between a brightness level of an intermediate gray level of the display device and the ambient brightness level being less than or equal to a preset brightness value (102); and adjusting, according to the adjustment parameter, brightness levels of at least a portion of gray levels of the display device (103).

A display device includes a substrate, a display panel including a first display area, a second display area, and a third display area between the first and second display areas, each of the first, second, and third display areas including a plurality of pixels, and a sensor which is between the substrate and the first display area of the display panel and senses an external object through the first display area. A first pixel density of the first display area is less than a second pixel density of the second display area, and a pixel density of the third display area varies with relative distances from the first display area.

The display device includes a first data line group including data lines connected to pixels arranged at a first resolution; a second data line group including data lines connected to pixels arranged at the first resolution and pixels arranged at a second resolution; a first gamma compensation voltage generation unit that divides a first reference voltage and outputs a gamma compensation voltage; a second gamma compensation voltage generation unit that divides a second reference voltage and outputs gamma compensation voltages; a first data drive unit that converts pixel data into the gamma compensation voltage output from the first gamma compensation voltage generation unit and outputs a data voltage to the first data line group; and a second data drive unit that converts pixel data into the gamma compensation voltage output from the second gamma compensation voltage generation unit and outputs a data voltage to the second data line group.

A display apparatus includes a display panel including a plurality of pixels, a data driver to provide data voltages to the plurality of pixels and to sense threshold voltages of the pixels, and a driving controller to generate first difference values by calculating differences between the data voltages for first pixels included in an N-th pixel row and the data voltages for second pixels included in an (N+1)-th pixel row among the plurality of pixels in an initial driving period, to calculate limit offset values for the second pixels based on the first difference values, to generate threshold voltage compensation values for the second pixels based on the threshold voltages of the second pixels, and to compensate input image data for the second pixels based on the threshold voltage compensation values and the limit offset values, where N is an integer greater than 0.

An electro-optical device includes digital scanning lines, a digital signal line, and pixel circuits. Each circuit is coupled to a digital scanning line included in the digital scanning lines, and the digital signal line. Each pixel circuit includes a light-emitting element and a digital driving circuit that performs digital driving in which, when the pixel circuit is selected by the digital scanning line, display data is written to selected pixel circuit from the digital signal line, and a drive current is supplied to the light-emitting element of selected pixel circuit in an on-period of a length corresponding to a gray scale value of the display data. A field being a period in which one image is formed includes an all-pixels-light-off period in which the pixel circuits turn off the light-emitting elements, and a digital driving period in which the digital driving circuit performs the digital driving after the all-pixels-light-off period.

A display device according to embodiments of the present disclosure may include a display panel, a data driver configured to drive by dividing a diving period into an active period and a blank period, and apply a parking voltage during the blank period, and a controller configured to vary a driving frequency in frame units according to an input image, and, according to the driving frequency, to operate a frame as a refresh frame for writing the data voltage, or operate by dividing the frame into the refresh frame and a hold frame, wherein a voltage level of the parking voltage varies according to the driving frequency. Accordingly, it is possible to prevent a stripe defects and improve the uniformity of the display panel by reducing the mura of a parking voltage, thereby improving image quality.