Abstract: An organoluminescent compound. The compound has formula (I) wherein X1 and X2 independently represent C10-25 aryl, heteroaryl, stilbenyl, silylaryl, or arylsilyl; n represents an integer of 0 to 2; L represents aryl or heteroaryl; and A1, A2, and A3 independently represent aryl or heteroaryl. The invention also provides an organic light-emitting diode and a display utilizing the organoluminescent compound.

Abstract: An OLED including an anode layer, a first mixing layer over the anode layer, a mixing layer on the first mixing layer, a second mixing layer on the mixing layer, and a cathode layer over the second mixing layer is provided. The mixing layer is a mixture of an organic light emitting material, a hole and an electron transport material, and a volume ratio of the hole transport material to the electron transport material thereof is X %. The first and second mixing layers are both mixtures of the hole and electron transport materials. A volume ratio of the hole transport material to electron transport material in the first mixing layer decreases gradually from 99% to X % starting from the surface adhered to the anode layer, and that of the second mixing layer increases gradually from X % to 99% starting from the surface adhered to the mixing layer.

Abstract: An organic light emitting device comprises an anode, a cathode and a complex emitting layer. The complex emitting layer comprises a host and a guest. The host has a first energy level of a valence band and is used for a hole-injection layer or hole-transport layer. The guest has a second energy level of a conduction band and is used for doping the guest. The difference between the first and second energy levels is less than 2.5 eV.

Abstract: An organic electroluminescent device is provided. The device includes a substrate, an anode, an emitting layer and a cathode. The anode is disposed on the substrate, the emitting layer is disposed on the anode, and the cathode is disposed on the emitting layer. The emitting layer is constructed by a dark-blue emitting layer/light-blue emitting layer/reddish orange emitting layer or a light-blue emitting layer/dark-blue emitting layer/reddish orange emitting layer. Since the dark-blue emitting layer has an excellent bright blue light color and high brightness, and the light-blue emitting layer has a long service life, and therefore, organic electroluminescent device of the present invention has an excellent blue light color, high brightness and long service life.

Abstract: A phosphorescent organic light emitting device having a homogeneous structure for the blocking layer and emissive layer combination. The homogeneous structure comprises substantially a single material for both the blocking layer and the host material for the emissive layer. Alternatively, the blocking layer and the host material for the emissive layer are selected from one or more of BAlq, SAlq and PAlq. The homogenous structure is disposed between an electron source and a hole source. The electron source comprises an electron transport layer, an electron injection layer and cathode. The hole source comprises a hole transport layer, a hole injection layer and an anode. The emissive layer is doped with a guest phosphor dopant. Additionally, a buffer layer containing LiF and Al, or layers of CuPc, Al and LiF are disposed between the cathode and the electron transport layer.

Abstract: An organic electroluminescent device comprising a light emitting layer including guest material and host material having formula (I): wherein R1, R2 and R3 individually represent H or substituent, R4 represents alkyl, alkenyl, heteroaryl, aryl group with or without substituent, q is an integer of 0 to 4, m is an integer of 1 to 3, n is an integer of 1 to 3, and m+n=4.

Abstract: An organic electroluminescent device comprising a light emitting layer including guest material and host material having formula (I): wherein R2 and R3 individually represents H or substituent, R1 represents alkyl, alkenyl, heteroaryl, aryl group with or without substituent, m is an integer of 1 to 3, n is an integer of 1 to 3, and m+n=4.

Abstract: An organometallic complex having formula (I) wherein M is a transition metal; A1 and A2 are each independently a monodentate ligand, or are covalently joined to form a bidentate ligand; wherein when X is oxygen, R1, R2, R3, R4 are each independently CN, CF3, C1-20 alkoxyl, or NRR?; and when X is S or NR, R1, R2, R3, R4 are each independently halogen, CN, CF3, C1-20 alkyl, C5-7 aryl, C1-20 alkoxyl, or NRR?; wherein R, R? are each independently C1-20 alkyl or C5-7 aryl; m is the valence of M; and n is 1, 2, or 3.

Abstract: A dual emissive display wherein images shown on each side of the display are not affected by a background image. The dual emissive display includes an emissive display device, a first polarizer and a second polarizer, wherein the first and second polarizers are located on different sides of the display and the polarizations thereof are orthogonal to each other. Fabrication and display methods of the dual emissive display are also provided.

Abstract: A method of manufacturing an organic light-emitting device having reduced ambient-light reflection is disclosed. The method comprises the following steps. First, a metal reflective layer is formed on a provided substrate. Then a transparent anode, an organic layer, a translucent electron-injecting cathode, a buffer layer and a transparent electrode are sequentially deposited on the metal reflective layer. In order to reduce the affect of the ambient-light reflection, adjusting the thickness of the aforementioned layers that the reflected lights generate destructive optical interference and improve the visually perceived contrast of the emitted light.

Abstract: Organic light emitting devices include an anode, a cathode and a plurality of organic light emitting units. The adjacent organic light emitting units are separated by a charge transfer layer formed of various fullerenes in combination. The charge transfer layer may be a relatively homogenous layer that is a mixture comprising fullerene.

Abstract: An organic light-emitting device (OLED) includes an anode, a cathode and a plurality of organic light-emitting units. The organic light-emitting units are separated by a charge transfer layer which may be formed of various fullerenes in combination with a further material. The charge transfer layer may be a relatively homogenous layer that is a mixture of fullerene and the further material or it may include two distinct layers including a fullerene layer and a layer of the further material.

Abstract: A high contrast organic light-emitting device (OLED) includes a composite electron transport layer including a generally transparent electron transport layer and a light-absorbent electron transport layer formed of buckminsterfullerene. The light-absorbent electron transport layer absorbs environmental light and the OLED provides an undistorted display with high contrast. The light-absorbent electron transport layer may be disposed directly between the generally transparent electron transport layer which may be formed of Alq, and an LiF electron injection layer of a metallic cathode.

Abstract: An anthracene compound for an organic electroluminescent device, having formula (I) or (II) wherein R1, R2, R3, R4, R5, and R6 are each individually an unsubstituted or substituted aryl group having 6 to 20 carbon atoms, an unsubstituted or substituted heteroaryl group having 6 to 20 carbon atoms, or an unsubstituted or substituted alkyl group having 1 to 12 carbon atoms, wherein the substituent is C1-10 alkyl, C1-10 alkoxy, or halogen.

Abstract: A divided shadow mask for use in fabricating an organic light emitting diode display including a first shadow mask section having a plurality of openings; and at least a second shadow mask section having a plurality of openings.

Abstract: A bottom and top emission OLED structure includes: first and second anodes; first and second organic light-emitting layers disposed between the first and second anodes. A first electrode may be disposed between the first and second organic light-emitting layers or first and second electrically isolated electrodes may be disposed between the first and second organic light-emitting layers.

Abstract: An organic electroluminescent element having double mixed layers. The organic electroluminescent element comprises at least a substrate, a first electrode, a first type carrier transport mixed layer, a first type carrier transport layer, an emitting layer, and a second electrode. The structure of the organic electroluminescent element according to the present invention is designed in order to lowers the operating voltage and extends the lifetime thereof, and the electroluminescent interference problems of conventional organic electroluminescent elements are solved thereby.

Abstract: An electroluminescence display device that comprises an array of pixels, an electroluminescence device formed in each of the pixels, a first electrode formed in the electroluminescence device, a second electrode formed in the electroluminescence device, an electroluminescence layer formed in the electroluminescence device between the first and second electrodes to emit light through the first and second electrodes, a plurality of scan drivers to activate the array of pixels, and a control unit to control a scanning sequence of the plurality of scan drivers, the electroluminescence display device further comprising a first mode wherein the array of pixels are activated in a sequence from a first row to a last row, and a second mode wherein the array of pixels are activated in a sequence from the last row to the first row.

Abstract: A method of manufacturing an organic light-emitting device having reduced ambient-light reflection is disclosed. The method comprises the following steps. First, a metal reflective layer is formed on a provided substrate. Then a transparent anode, an organic layer, a translucent electron-injecting cathode, a buffer layer and a transparent electrode are sequentially deposited on the metal reflective layer. In order to reduce the affect of the ambient-light reflection, adjusting the thickness of the aforementioned layers that the reflected lights generate destructive optical interference and improve the visually perceived contrast of the emitted light.

Abstract: An organic electroluminescent display. The display has a transparent display panel, a reflective sheet and a brightness regulating film between the substrate and the reflective sheet. The regulating film is able to adjust the light intensity transmitting thereof.