An display device includes a display panel including a plurality of pixels; a scan driver configured to provide scan signals to the pixels; a data driver configured to provide data signals to the pixels; a look-up table (LUT), wherein an efficiency curve indicating a relationship between an accumulated driving time and an efficiency value is stored in the LUT; a lifespan register, wherein an efficiency changing region for deriving the efficiency value of each of the pixels from the LUT is stored in the lifespan register and the lifespan register is configured to accumulatively store deterioration data of the pixels; and a controller configured to derive the accumulated driving time from the lifespan register, to update the efficiency changing region and the LUT based on the accumulated driving time, and to convert input image data into output image data using the efficiency changing region and the LUT.

The present disclosure relates to a display device capable of reducing a stress cumulative deviation and preventing image sticking with respect to a boundary between first and second display areas separately driven according to the shape and use environment of a display panel, and a display device may include: a panel displaying an image through a display area composed of a plurality of pixels and having a variable shape; a panel driver for driving the panel; and an image processor for dividing the display area into a first display area and a second display area when the shape of the panel is changed, determining a boundary neighboring region including a first boundary neighboring region and a second boundary neighboring region, and modulating data corresponding to the boundary neighboring region using a result of analysis of an image corresponding to the boundary neighboring region.

A compensation system and a compensation method for life attenuation of an organic light emitting diode (OLED) device are provided to include a display data input module, an equivalent life calculation module, an OLED device attenuation degree calculation module, a display position weight ratio module, a life compensation data generation module, and a data compensation and display data output module. The life compensation data generation module is configured to generate final life compensation data according to a feedback result of the OLED device attenuation degree calculation module and the display position weight ratio module.

An organic light-emitting diode display is disclosed. In one aspect, the display includes a display panel including a plurality of pixels, a scan driver configured to provide a scan signal to the pixels, and a data driver configured to provide a data signal to the pixels. The display also includes a power supply configured to provide first and second power voltages, respectively having first and second voltage levels, to the pixels, wherein the power supply is further configured to substantially periodically change the second voltage level, and wherein the second voltage level is less than the first voltage level. The display also includes a controller configured to control at least one of the scan driver, the data driver, and the power supply.

A display device includes a display panel, a first memory, and a degradation compensator. The first memory device stores stress data including degradation values representing a degradation degree of each of the blocks in the display panel. The degradation compensator loads the stress data from the first memory device, updates the stress data based on current input data and a maximum degradation value, updates the maximum degradation value based on degradation values included in the updated stress data, and generate compensated data by compensating for the current input data based on the updated stress data. The degradation compensator determines whether a first degradation value included in the stress data is normal by comparing the first degradation value with the maximum degradation value, and updates the first degradation value based on at least one adjacent degradation value adjacent to the first degradation value, when the first degradation value is abnormal.

Provided is a display device. The display device includes pixels including light emitting elements, a weight calculation unit configured to calculate a weight of one of the pixels based on an amount of current flowing therethrough and a number of light emitting elements thereof, a deterioration accumulation unit configured to accumulate a deterioration amount of the one of the pixels based on the weight and previous compensation data thereof, and a data compensation unit configured to generate compensation data to be supplied to the one of the pixels based on the deterioration amount thereof.

The present application discloses a method, a device, a display device and a medium for improving OLED residual images. The method for improving OLED residual images includes obtaining a life attenuation rate relationship and a life attenuation degree relationship of an OLED display panel, dividing a display area of the display panel into a plurality of sub-areas to monitor temperature change and gray scale change of each sub-area respectively, obtaining a temperature value and a gray scale value of each sub-area at a current moment, calculating a current life attenuation rate according to the temperature value and the gray scale value, and calculating a current luminous time of each sub-area, calculating a life attenuation degree of each sub-area according to the current luminous time of each sub-area, and performing pixel compensation to each sub-area respectively according to the current life attenuation degree of each sub-area.

A display control method includes: determining a drive charge amount for driving display of a current pixel, and a threshold for charge amount determination for the pixel circuit, wherein the threshold for charge amount determination is configured to trigger start of determining an accumulated charge amount in the pixel circuit; and in response to the drive charge amount being less than the threshold for charge amount determination, adjusting the drive charge amount for driving the display of the current pixel.

A display panel and a display drive method thereof, and a display device are provided. The display panel includes a plurality of display regions and a plurality of scan drive circuits, the plurality of display regions includes a first display region and a second display region that are parallel to each other and do not overlap with each other, and the plurality of scan drive circuits includes a first scan drive circuit and a second scan drive circuit, the first and second display regions are connected to the first and second scan drive circuits to respectively receive a first light-emitting control signal, and the display drive method includes: individually adjusting a pulse width of at least one of the first light-emitting control signal and the second light-emitting control signal to adjust the light-emitting durations of light-emitting elements of the first and second display regions within one display period, respectively.

Displaying device comprising an emissive display and at least one controller configured to control said Mrs display, said display comprising a matrix array (100) of light-emitting pixels deposited on a substrate, each pixel (101) being formed, at least in one portion of said emissive display, of a plurality of elementary emitting zones Z, said elementary emitting zones Z comprising at least one elementary emitting zone Z.sub.A of a first group A and at least one elementary emitting zone Z.sub.B of a second group B, said device being characterised in that the ratio S of the sum S.sub.B of the areas of the elementary emitting zones Z.sub.B of the second group B and of the sum S.sub.A of the areas of the elementary emitting zones Z.sub.A of the first group A, which is defined by S=S.sub.B/S.sub.A, is