An electroluminescent display and illuminating device and a manufacturing method thereof are provided. Layers of light-emitting devices of an electroluminescent display and an electroluminescent illuminator are assembled, and the two devices share an electrode in a middle of a laminated structure, thereby realizing a display function on one side of the device and realizing a illumination function on the other side of the device, so that a shape design of a product can be more flexible.

The present invention provides an organic electroluminescent diode device, a display panel, and a manufacturing method thereof. The organic electroluminescent diode device includes a first electrode layer, a conductive layer, an electron injection layer, a light-emitting layer, a hole injection layer, and a second electrode layer, and the conductive layer is provided between the first electrode layer and the electron injection layer.

The present disclosure provides a display panel, a manufacturing method thereof, and a display device. The display panel comprises a plurality of sub-pixels, wherein a part is face-up sub-pixels and the rest is flip sub-pixels. In the face-up sub-pixels, a first electrode, a hole transport layer, a light-emitting layer, an electron transport layer, and a second electrode are disposed on a substrate in sequence, and in the flip sub-pixels, the first electrode, an electron transport layer, a light-emitting layer, a hole transport layer, and the second electrode are disposed on the substrate in sequence.

An OLED, a method for fabricating the same, and a display device are disclosed. The OLED includes a first electrode, a first carrier transporting layer, an organic light emitting layer, a second carrier transporting layer, a second electrode, and a light extracting layer between the first electrode and the organic light emitting layer. The light extracting layer is made from a first carrier transporting material. The light extracting layer is formed between the first electrode and the organic light emitting layer at a light exit side of the OLED, and is formed from the first carrier transporting material. This increases the light extracting efficiency of the OLED. The light extracting layer further acts as the first carrier transporting layer, thus simplifying the structure of OLED, making OLED easy to fabricate, and efficiently controlling cost.

A compound comprising a first ligand L.sub.A of Formula I, ##STR00001##
is disclosed. In the structure of Formula I, ring A is a 5-membered or 6-membered carbocyclic or heterocyclic ring; Z.sup.1-Z.sup.4 are each independently C or N; at least two consecutive Z.sup.1-Z.sup.4 are C, and are fused to a structure of ##STR00002##
or ##STR00003##
Y.sup.1 and Y.sup.2 are each independently O, S, Se, CRR′, SiRR′, or GeRR′; each R.sup.A, R.sup.B, R.sup.C, R, and R′ is a hydrogen or a substituent; and any two substituents may be joined or fused together to form a ring. In the compound, L.sub.A is complexed to a metal M by the dashed lines in Formula I to form a five-membered chelate ring, and M has an atomic weight greater than 40. Organic light emitting devices and consumer products containing the compounds are also disclosed.

The disclosure provides an organic light-emitting display screen and a manufacturing method thereof. The organic light-emitting display screen includes a filter substrate, and further includes a color filter layer, a cathode layer, an organic light-emitting layer and an anode array sequentially formed on the filter substrate. The anode array includes a number of anode units spaced apart from each other, the color filter layer includes a number of filter units, and each of the anode units corresponds to each of the filter units.

Systems and arrangements of OVJP deposition devices are provided, in which one or more organic material crucibles are directly attached to an injection block and a print head without the need for external delivery components such as feedtubes. Each crucible may be hermetically sealed until it is attached to the injection block, allowing for a single device to provide for storage, transport, and deposition of the organic material.

Disclosed are a light emitting device including a perovskite charge transport layer and a method of manufacturing the same. Perovskite thin film of the light emitting device is prepared by co-depositing or sequentially depositing perovskite precursors. Perovskite is directly deposited on the substrate, the thickness of the perovskite thin film is easily controlled, and the energy level is easily adjusted. So, a charge transport layer functioning as a hole injection layer or an electron injection layer in the light emitting device may be manufactured to have suitable energy level.

The present invention provides a QD material, a preparation method, and a semiconductor device. The QD material includes at least one QD structural unit arranged sequentially along a radial direction of the QD material. Each QD structural unit has a gradient alloy composition structure with a changing energy level width along the radial direction or a homogeneous alloy composition structure with a constant energy level width along the radial direction. The disclosed QD material not only achieves higher light-emission efficiency of QD material, but also meets the comprehensive requirements of semiconductor devices and the corresponding display technologies on QD materials. Therefore, the disclosed QD material is a desired QD light-emitting material suitable for semiconductor devices and display technologies.

A thin film of amorphous metal oxide includes zinc (Zn), silicon (Si) and oxygen (O), the atomic ratio of Zn/(Zn+Si) being 0.30 to 0.95.