An organic electroluminescence device includes an anode, a cathode and an emitting layer, in which the emitting layer includes a first compound and a second compound and each of the first compound and the second compound is a compound emitting thermally activated delayed fluorescence.

Embodiments of the present disclosure provide a test circuit, a test method, a display panel and a display apparatus. Each of the signal input terminals may input a plurality of signals in a time division multiplexed manner, and in turn may be controlled by the corresponding switches to form a plurality of signal lines, a signal flow of the plurality of signal lines are totally different from each other under control of the switches. For example, one of the signal lines may function as a signal input line, and the other one of the signal lines may function as a signal input line for other specific testing, such as aging process so as to input signals different from the normal turn-on state signals. Consequently, by controlling the corresponding switches through the control signal terminals so that different input signals pass through different signal lines into the display panel to meet testing requirements of normal turn-on state testing, aging process and so on for the display panel. With respect to the prior art, the testing signals may be input without passing through a shift register unit, which avoids damage of a specific testing signal such as aging signal on the shift register unit and ensure a normal displaying function of the display panel.

An organic electroluminescence device includes an anode, a cathode and an emitting layer, in which the emitting layer includes a first compound and a second compound and each of the first compound and the second compound is a compound emitting thermally activated delayed fluorescence.

An electroluminescence display and a method for driving the same are provided to enhance the aging performance of the electroluminescence display. The electroluminescence display comprises: a display panel on which a plurality of pixels each comprising an electroluminescence element; and a power supply part that outputs a drive voltage for driving the pixels, wherein an externally applied aging signal is applied to a cathode of the electroluminescence element to perform aging on the display panel.

An aging test system and method are disclosed. An aging test system includes a vacuum chamber provided with an aging device for aging a display panel; a lighting mechanism electrically connected to the display panel for lighting up the display panel; at least one spectrometer for detecting a color coordinate and a brightness of the display panel; at least one camera for detecting a dark spot defect of sub-pixels of the display panel. Accordingly, the present invention can save the inspection time, increase the inspection efficiency and save the inspection device in order to reduce the inspection cost.

A lighting apparatus using an organic light emitting diode according to the present disclosure is configured such that a substrate is planarized by forming an anti-scratch layer on a cathode electrode to fully cover the cathode electrode. The present disclosure having such configuration can uniformly maintain pressing pressure by virtue of the anti-scratch layer even while winding or unwinding the substrate for pulse aging, thereby preventing damages due to scratches or particles.

A method of aging a display device includes: inputting a display device including a plurality of pixels into an aging chamber, reaching a preset condition of the display device, sensing each of the plurality of pixels, compensating each of the plurality of pixels, and aging the display device.

A display device manufacturing method includes: lighting up a display device for a predetermined period; measuring, as first brightness, brightness of the display device at a start of lighting; measuring, as second brightness, brightness of the display device when the predetermined period has elapsed; calculating a deterioration rate of the second brightness with respect to the first brightness; and discriminating the display device as a defective item if the deterioration rate is greater than a threshold value.

An organic light emitting display includes a first substrate including a display area and a non-display area, a plurality of dummy pixels positioned on at least a part of the non-display area of the first substrate, a light guide plate positioned on the plurality of dummy pixels, and a light sensor positioned at one side of the light guide plate.

An organic light emitting display includes a first substrate including a display area and a non-display area, a plurality of dummy pixels positioned on at least a part of the non-display area of the first substrate, a light guide plate positioned on the plurality of dummy pixels, and a light sensor positioned at one side of the light guide plate.