Failure light emission of an EL element due to failure film formation of an organic EL material in an electrode hole 46 is improved. By forming the organic EL material after embedding an insulator in an electrode hole 46 on a pixel electrode and forming a protective portion 41b, failure film formation in the electrode hole 46 can be prevented. This can prevent concentration of electric current due to a short circuit between a cathode and an anode of the EL element, and can prevent failure light emission of an EL layer.

The present application relates to a display panel and a display device thereof. The display panel includes a base substrate and a number of display units disposed on the base substrate. The number of display units form a display region. A display region driving circuit is disposed on the display region of the base substrate and electrically connected to the number of display units so as to drive the number of display units. And a peripheral circuit is disposed on the base substrate at a periphery of the display region. The peripheral circuit includes a number of peripheral circuit units arranged side by side in a same direction. And the number of peripheral circuit units and the number of display units are respectively arranged correspondingly.

A display device is disclosed. The display device comprises an array structure comprising a plurality of primary pixel element structures arranged in a matrix. A primary pixel element structure comprises a plurality of pixel element structures arranged in a second direction. A pixel element structure comprises first, second, and third sub-pixel elements, each comprising a light-emitting region and a light-transmitting region disposed at one side of the light-emitting region and adjacent to the light-emitting region in a first direction, and the first direction being perpendicular to the second direction. When the display device is turned off, a scene on an opposite side of the display device is observed by an observer on either side of the display device, and when the display device is turned on, a scene on the opposite side of the display device is observed by the observer on a side where no light is emitted.

The present disclosure provides a display substrate and a method of manufacturing the same, and a display device. The display substrate comprises a base substrate and a pixel layer disposed on the base substrate, the pixel layer comprising a plurality of pixel units distributed in a matrix array. The display substrate further comprises a Fresnel lens layer including a plurality of Fresnel lenses. The pixel units each are located at a position within a focal plane of at least one of the Fresnel lenses.

The present teachings relate to an organic electroluminescent transistor with improved light-emission characteristics. More specifically, the present organic electroluminescent transistor has an emissive ambipolar channel including at least one layer of an n-type semiconductor material, at least one layer of a p-type semiconductor material, and at least one layer of an emissive material arranged between the layers of the p-type and n-type semiconductor materials, with the n-type semiconductor material comprising an electron-transporting compound represented by formula (N-1):

##STR00001##

where X, Ar, Ar′, R.sup.1, R.sup.2, m and m′ are as defined herein.

A control circuit including a first input-output pin, a second input-output pin, a sensing circuit and a display controller is provided. The first input-output pin is configured to be coupled to a first input pin of a display device and a first sensing pin of a capacitive touch device. The second input-output pin is configured to be coupled to a second input pin of the display device and a second sensing pin of the capacitive touch device. The display controller provides a first driving signal to the display device via the first input-output pin and providing a second driving signal to the display device via the second input-output pin in a display period. In a first sensing period, the voltage level of the first input-output pin is equal to a first predetermined level, and the sensing circuit detects the voltage of the second input-output pin.

A display substrate has a display area and a peripheral area. The display substrate includes a base substrate; an insulating layer on the base substrate and in at least the peripheral area; a plurality of light emitting elements on the base substrate and in the display area; an encapsulating layer on a side of the plurality of light emitting elements distal to the base substrate to encapsulate the plurality of light emitting elements; and a dam layer on a side of the insulating layer distal to the base substrate. The encapsulating layer includes a first inorganic encapsulating sublayer extending from the display area into the peripheral area. The display substrate has a groove extending into the first insulating layer in the peripheral area, and substantially surrounding the display area. The first inorganic encapsulating sublayer extends into at least a portion of the groove.

Method for fabricating an organic EL display panel having an EL region at every cross of first and second electrodes, including the steps of forming a plurality of first electrodes at regular intervals on a transparent substrate, forming an insulating later in regions other than the EL regions, forming second supplementary electrodes on the insulating layer, forming an electric insulating barrier between adjacent EL regions perpendicular to the first electrodes, forming an organic EL layer in each of the EL regions with a shadow mask, depositing an electrode material on an entire surface inclusive of the organic EL layer, to form a plurality of second electrodes, and forming a protection film on an entire surface inclusive of the second electrodes.

A novel organometallic complex is provided. An organometallic complex emitting green to blue phosphorescence is provided. An organometallic complex having a deep LUMO level and emitting green to blue phosphorescence is provided. A light-emitting element with high emission efficiency is provided. A light-emitting element emitting green to blue phosphorescence and having low drive voltage is provided. A light-emitting device with low power consumption is provided. The organometallic complex includes iridium and a ligand having a triazole skeleton. The triazole skeleton has a group including a pyridine ring or a group including a pyrimidine ring and an aryl group. One of nitrogen atoms included in the triazole skeleton is coordinated to the iridium. The aryl group is bonded to the iridium at the ortho position of the aryl group.

An organic light emitting diode display panel is disclosed, which comprises: a first substrate with an organic light emitting layer formed thereon; a second substrate corresponding to the first substrate, and adhered to the first substrate with a frit sealant; and plural spacers disposed between the first substrate and the second substrate, and comprising a first spacer, a second spacer and a third spacer adjacent to each other, wherein shapes of a first projection of the first spacer, a second projection of the second spacer and a third projection of the third spacer on the second substrate are different from each other. In addition, the present invention also disclosed an organic light emitting diode display device containing the same.