A display device may include a display panel including a plurality of pixel rows, a power supply providing a power voltage to the display panel, and an overcurrent protector shutting down the power supply when at least one of the pixel rows is burnt. The overcurrent protector may include a sensing controller sensing a first current of at least one first pixel row of the display panel in a first frame period, and sensing a second current of the first pixel row in a second frame period after the first frame period when the first current is greater than or equal to a first threshold value. The overcurrent protector may further include a burnt determiner determining whether the first pixel row is burnt, and providing a shutdown signal to the power supply when the first pixel row is burnt.

A pixel compensation module according to one embodiment of the present disclosure detects a degraded region with reference to degradation data corresponding to each of pixels included in a display panel, determines a first compensation gain so as to decrease final compensation data of pixels included in the degraded region, and determines a second compensation gain so as to increase final compensation data of pixels included in an adjacent degraded region to correct compensation data of the pixels.

A driving circuit and an operating method thereof are disclosed. The driving circuit is disposed in a display apparatus and coupled to an OLED display panel. The driving circuit includes a buffer module, a regenerating module, a data processing module and a driving module. The buffer module receives and temporarily stores a first image data. The regenerating module generates a second image data different from the first image data according to the first image data. The data processing module performs a data processing process on the second image data to generate an output image data. The driving module is coupled between the data processing module and the OLED display panel and used to output an output the output image data to the OLED display panel.

The present disclosure relates to an organic light emitting display device which is implemented to reduce or suppress the residual image and the flicker. According to an embodiment, a circuit includes an organic light emitting diode disposed between a first node and a first power source, a driving transistor disposed between the first node and a second power source and driving the organic light emitting device, a first transistor transmitting a data signal to the driving transistor, and a first control transistor disposed between the first node and a second node. The first control transistor applies a reverse current to the driving transistor during a first period and holes accumulated on the active layer of the driving transistor are removed during the first period, whereby a current path efficiency is improved.

Disclosed is an organic light emitting display including: a display panel having a plurality of pixels arranged thereon; a degradation reduction circuit configured to detect a highly luminous still image pattern by analyzing input image data, and change a correlated color temperature (CCT) of a vulnerable color having the shortest lifespan in still image data corresponding to pixels displaying the highly luminous still image pattern so as to modulate the input image data into a degradation reduced data; and a display panel driving circuit configured to provide an analog data voltage, corresponding to the degradation.

A driving transistor is configured to control driving current for the light-emitting element. A first capacitive element and a second capacitive element are connected in series between a gate and a source of the driving transistor. A first switching transistor is configured to switch connection/disconnection between a data line and an intermediate node located between the first capacitive element and the second capacitive element. A second switching transistor is configured to switch connection/disconnection between the gate and a drain of the driving transistor. A third switching transistor is configured to switch connection/disconnection between the intermediate node and a reference power line. A fourth switching transistor is configured to switch supply/non-supply of driving current from the driving transistor to the light-emitting element. A fifth switching transistor is configured to switch connection/disconnection between an anode of the light-emitting element and a reset power line.

A ghost elimination method, a ghost elimination device and a display panel are provided. The ghost elimination method includes driving and displaying a display panel by taking a plurality of continuous frames of pictures as a period. In one period, motion compensation is performed on the front m frames of pictures, and the motion compensation is not performed on the remaining n frames of pictures, where m and n are both positive integers.

Techniques for implementing aging compensation for a display are described. An example of an electronic device includes a display comprising pixels, each pixel comprising one or more Light Emitting Diodes (LEDs). The electronic device also includes a display aging compensation unit to receive input frame data corresponding to content to be displayed, adjust the input frame data to generate output frame data based on a degree of aging of the LEDs, and send the output frame data to the display. The electronic device also includes a display aging monitoring and compensation processing unit to accumulate aging data that describes the degree of aging of the LEDs. The aging data is accumulated by sampling the output frame data at a sampling point in accordance with a sampling configuration, and the aging data collected at the sampling point is applied to other pixels in the vicinity of the sampling point. The display aging monitoring and compensation processing unit determines a degree of compensation to apply to the other pixels based on the aging data collected at the sampling point and an aging difference between the other pixels and the sampling point.

An electronic device is provided. The electronic device includes a display including a plurality of display pixels, a memory, and at least one processor, wherein the at least one processor may be configured to drive the display by variably adjusting a first display region and a second display region in which visual information is to be displayed on the display, based on an operation state or a display structure state of the electronic device, calculate a difference in usage of the display between the first display region and the second display region, variably determine a size of a boundary compensation region between the first display region and the second display region, based on the difference in usage, and compensate for an image of the boundary compensation region.

A display device includes a display panel including a plurality of pixels arrayed on a substrate, a photosensor, and a control device including a lock-in amplifier. Each of the plurality of pixels includes a light-emitting element. The control device is configured to select one or more pixels from the plurality of pixels, perform measurement of a light intensity of the one or more pixels, and control light emission of the one or more pixels based on a result of the measurement. The measurement includes applying alternating modulation to light emission of the selected one or more pixels, and measuring a light detection signal generated by the photodetector in response to light from the selected one or more pixels with the lock-in amplifier based on a reference signal synchronized with the alternating modulation.