Abstract: An organic electroluminescence structure comprises a first substrate, an organic electroluminescence device, and a control device. Forming either a lifting layer under the control device or a recess under the organic electroluminescence device, or forming both of them, creates a difference between their tops, in order to reduce the dark spots and promote the yield of the end product. The lifting layer preferably has a thickness greater than about 0.5 micro meters and the recess has a depth ranges of about 0.1 micro meters to about 100 micro meters. Alternatively, the height difference between the upper surfaces of the control device and the organic electroluminescence device is controlled to be greater than about 2 micro meters or substantially equal to 2 micro meters.

Abstract: A self-emissive display device. The display device comprises a substrate having a pixel region for displaying one of the primary colors. An organic electroluminescent multi-layer structure is disposed in the pixel region of the substrate. The organic electroluminescent multi-layer structure comprises a first micro-cavity portion and a second micro-cavity portion adjacent thereto. The first micro-cavity portion comprises an organic layer for light-emitting and a first film for determining light wavelength shift of the first micro-cavity portion. The second micro-cavity portion comprises the organic layer for light-emitting and a second film for determining light wavelength shift of the second micro-cavity portion. The first and second films have different optical lengths, such that the first and second micro-cavity portions provide opposite directions of the light wavelength shift.

Abstract: An organic electroluminescence structure comprises a first substrate, an organic electroluminescence device, and a control device. Forming either a lifting layer under the control device or a recess under the organic electroluminescence device, or forming both of them, creates a difference between their tops, in order to reduce the dark spots and promote the yield of the end product. The lifting layer preferably has a thickness greater than about 0.5 micro meters and the recess has a depth ranges of about 0.1 micro meters to about 100 micro meters. Alternatively, the height difference between the upper surfaces of the control device and the organic electroluminescence device is controlled to be greater than about 2 micro meters or substantially equal to 2 micro meters.

Abstract: An organic electroluminescence structure comprises a first substrate, an organic electroluminescence device, and a control device. Forming either a lifting layer under the control device or a recess under the organic electroluminescence device, or forming both of them, creates a difference between their tops, in order to reduce the dark spots and promote the yield of the end product. The lifting layer preferably has a thickness greater than about 0.5 micro meters and the recess has a depth ranges of about 0.1 micro meters to about 100 micro meters. Alternatively, the height difference between the upper surfaces of the control device and the organic electroluminescence device is controlled to be greater than about 2 micro meters or substantially equal to 2 micro meters.

Abstract: An organic electroluminescence device and a method for reducing lateral current leakage thereof are provided. The organic electroluminescence device comprises a cathode, an anode, and an organic electroluminescence unit disposed therebetween. The organic electroluminescence unit comprises a light-emitting layer and a hole-injecting layer (HIL). The HIL possesses a sufficient resistance achieved by adjusting the thickness of the HIL and/or the concentration(s) and/or species of the conductive dopant(s) in the HIL.

Abstract: A self-emissive display device. The display device comprises a substrate having a pixel region for displaying one of the primary colors. An organic electroluminescent multi-layer structure is disposed in the pixel region of the substrate. The organic electroluminescent multi-layer structure comprises a first micro-cavity portion and a second micro-cavity portion adjacent thereto. The first micro-cavity portion comprises an organic layer for light-emitting and a first film for determining light wavelength shift of the first micro-cavity portion. The second micro-cavity portion comprises the organic layer for light-emitting and a second film for determining light wavelength shift of the second micro-cavity portion. The first and second films have different optical lengths, such that the first and second micro-cavity portions provide opposite directions of the light wavelength shift.

Abstract: An organic electroluminescent device. The device comprises a substrate, an anode, an cathode, an electroluminescent structure, and a hole injection layer. The anode and the cathode opposite thereto are disposed on the substrate. The electroluminescent structure is disposed between the anode and the cathode. The hole injection layer is disposed between the anode and the electroluminescent structure and comprises a first sublayer comprising a p-type dopant and a second sublayer not comprising the p-type dopant, in which the first sublayer directly contacts the anode and the second sublayer directly contacts the electroluminescent structure.

Abstract: A tandem organic electroluminescent element for an organic electroluminescent display and a display using the tandem organic electroluminescent are provided. The tandem organic electroluminescent element comprises an anode, a cathode, a first high charge injection layer, a second high charge injection layer, and at least two organic electroluminescent units. Both the first high charge injection layer and the second high charge injection layer are disposed between the anode and the cathode. The first high charge injection layer comprises a first material and is adjacent to the anode. The second high charge injection layer comprises a second material and is adjacent to the cathode. At least two organic electroluminescent units are disposed between the first high charge injection layer and the second high charge injection layer.

Abstract: An organic electroluminescence device and a method for reducing lateral current leakage thereof are provided. The organic electroluminescence device comprises a cathode, an anode, and an organic electroluminescence unit disposed therebetween. The organic electroluminescence unit comprises a light-emitting layer and a hole-injecting layer (HIL). The HIL possesses a sufficient resistance achieved by adjusting the thickness of the HIL and/or the concentration(s) and/or species of the conductive dopant(s) in the HIL.

Abstract: A tandem organic electroluminescent element for use in an organic electroluminescent display is provided. The organic electroluminescent element comprises an anode, a cathode, a first organic electroluminescent unit, a second organic electroluminescent unit, and a connecting layer. Both the first organic electroluminescent unit and the second organic electroluminescent unit are disposed between the anode and the cathode. The connecting layer is between the first and second units, and comprises a bipolar organic compound and a conductive dopant.

Abstract: An organic electroluminescence structure comprises a first substrate, an organic electroluminescence device, and a control device. Forming either a lifting layer under the control device or a recess under the organic electroluminescence device, or forming both of them, creates a difference between their tops, in order to reduce the dark spots and promote the yield of the end product. The lifting layer preferably has a thickness greater than about 0.5 micro meters and the recess has a depth ranges of about 0.1 micro meters to about 100 micro meters. Alternatively, the height difference between the upper surfaces of the control device and the organic electroluminescence device is controlled to be greater than about 2 micro meters or substantially equal to 2 micro meters.