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1
US20050194897A1
Publication/Patent Number: US20050194897A1
Publication date: 2005-09-08
Application number: 11/025,384
Filing date: 2004-12-29
Abstract: There is provided a polymer electroluminescent device, which comprises a transparent substrate, an anode, a polymer emitting layer, a polymer insulating nanolayer and a cathode. The polymer insulating nanolayer having the dielectric constant (∈) of less than 3.0 is located between the cathode and the polymer emitting layer. According to the present invention, it is possible to obtain the polymer electroluminescent device showing more improved luminance efficiency. There is provided a polymer electroluminescent device, which comprises a transparent substrate, an anode, a polymer emitting layer, a polymer insulating nanolayer and a cathode. The polymer insulating nanolayer having the dielectric constant (∈) of less than 3.0 is ...more ...less
2
US20050212404A1
Publication/Patent Number: US20050212404A1
Publication date: 2005-09-29
Application number: 10/807,107
Filing date: 2004-03-24
Abstract: A white light LED assembly has at least two kinds of light-emitting units. The units can be a white light-emitting unit composed of red, green and blue LEDs, a white light-emitting unit composed of a blue and yellowish-green LEDs, a white light-emitting unit composed of a blue LED and yellow phosphor, or a white light-emitting units composed of UV LED and red, green and blue phosphors. The white light LED assembly according to the present invention has satisfactory efficiency and color rendering property as well as flexible phosphor usage. A white light LED assembly has at least two kinds of light-emitting units. The units can be a white light-emitting unit composed of red, green and blue LEDs, a white light-emitting unit composed of a blue and yellowish-green LEDs, a white light-emitting unit composed of a blue ...more ...less
3
US20050212406A1
Publication/Patent Number: US20050212406A1
Publication date: 2005-09-29
Application number: 10/919,915
Filing date: 2004-08-17
Abstract: A photo-radiation source for the selective polymerization of photo-radiation-curable organic material. In a first embodiment, a first electrode is provided with a second electrode disposed adjacent to the first electrode, and defining a gap therebetween. A photo-radiation emission layer is disposed in the gap. The photo-radiation emission layer includes a charge-transport matrix material and an emissive particulate dispersed within the charge-transport matrix material. The emissive particulate receives electrical energy through the charge-transport matrix material applied as a voltage to the first electrode and the second electrode photo-radiation. The emissive particulate generates photo-radiation in response to the applied voltage. This photo-radiation is effective for the selective polymerization of photo-radiation curable organic material. In a second embodiment, a plurality of light emitting diode chips generate a photo-radiation spectrum effective for the selective polymerization of photo-radiation-curable organic material. Each chip has an anode and a cathode. A first electrode is in contact with each anode of the respective light emitting diode chips. A second electrode is in contact with each cathode of the respective light emitting diode chips. At least one of the first electrode and the second electrode comprises a transparent conductor. The plurality of chips are permanently fixed in a formation by being squeezed between the first electrode and the second electrode without the use of solder or wiring bonding. The plurality of chips can be permanently fixed in a formation by being adhered to at least one of the first electrode and the second electrode using a conductive adhesive. In accordance with this embodiment of the invention, ultra-high chip packing density is obtained without the need for solder or wiring bonding each individual chip. A photo-radiation source for the selective polymerization of photo-radiation-curable organic material. In a first embodiment, a first electrode is provided with a second electrode disposed adjacent to the first electrode, and defining a gap therebetween. A photo-radiation ...more ...less
4
US20050264185A1
Publication/Patent Number: US20050264185A1
Publication date: 2005-12-01
Application number: 11/128,469
Filing date: 2005-05-13
Inventor: Hoffmann, Uwe  
Abstract: A method of producing organic light-emitting surface elements (OLEDs), wherein first a first electrode, an organic functional layer and a second electrode are deposited successively on a substrate. The method is used to produce the second electrode in the form of an interference layer system having n metallic sublayers and n+1 oxidic sublayers. The layers are disposed in pairs that each enclose a metallic sublayer therebetween, with n being an integer and ≧1. This method has the advantage of a very high light transmission for designing top-emitter OLEDs that cover a large surface area, while at the same time keeping the sheet resistance of the junction electrode located away from the substrate very low, thereby enabling operation at less than 10 V. A method of producing organic light-emitting surface elements (OLEDs), wherein first a first electrode, an organic functional layer and a second electrode are deposited successively on a substrate. The method is used to produce the second electrode in the form of an interference ...more ...less
5
US20050156510A1
Publication/Patent Number: US20050156510A1
Publication date: 2005-07-21
Application number: 10/761,763
Filing date: 2004-01-21
Abstract: A device and method for emitting output light utilizes a mixture of Group IIB element Selenide-based phosphor material and Group IIA element Gallium Sulfide-based phosphor material in which the Group IIA element includes Calcium, Strontium and/or Barium to convert some of the original light emitted from a light source of the device to longer wavelength light to change the optical spectrum the output light. Thus, the device and method can be used to produce white color light. The mixture of Group IIB element Selenide-based and Group IIA element Gallium Sulfide-based phosphor materials is included in a wavelength-shifting region optically coupled to the light source, which may be a blue light emitting diode (LED) die. A device and method for emitting output light utilizes a mixture of Group IIB element Selenide-based phosphor material and Group IIA element Gallium Sulfide-based phosphor material in which the Group IIA element includes Calcium, Strontium and/or Barium to convert some of the ...more ...less
6
US20050168142A1
Publication/Patent Number: US20050168142A1
Publication date: 2005-08-04
Application number: 11/090,394
Filing date: 2005-03-25
Abstract: The present invention provides OLEDs of the top emission type comprising organic light-emitting (LE) elements by preventing the problems such as the widening of the power lines, the reduction in the aperture ratio caused by the widening of the upper and the lower capacitor electrodes and the short circuit between the upper and the lower electrodes caused by the roughness of the flattening layers. Two kinds of the OLEDs are provided. One is an OLED comprising a region of LE layer sandwiched between the upper and lower electrodes is formed on a power line of TFT for driving the pixel. Another comprises a region of the LE layer formed on an electrode of capacitor connected to the TFTs to control the light-emitting element. Accordingly, without forming a flattening layer on the light-emitting layer, there is no electric short circuit between the lower electrode and the upper electrode. The present invention provides OLEDs of the top emission type comprising organic light-emitting (LE) elements by preventing the problems such as the widening of the power lines, the reduction in the aperture ratio caused by the widening of the upper and the lower capacitor ...more ...less
7
US20050162079A1
Publication/Patent Number: US20050162079A1
Publication date: 2005-07-28
Application number: 11/083,025
Filing date: 2005-03-18
Inventor: Sakamoto, Yoshiaki  
Abstract: Each pixel (21) includes a plurality of light emitting regions (11R, 11G, and 11B) corresponding R, G, and B each having an organic EL layer (3), and a plurality of TFT elements (12) provided corresponding to the light emitting regions to control light emission in the respective light emitting regions. The light emitting regions are provided in a zigzag manner and adjacent light emitting regions are kept from contacting one another. Each pixel (21) is divided into six segments (22a to 22c and 23a to 23c), and the light emitting regions are arranged in three segments (22a to 22c) in a zigzag manner. In this way, in a bottom emission type, active matrix organic EL display, a sufficient aperture ratio can efficiently be secured, and pixels can be arranged so that the aperture ratio is hardly a trade off for higher resolution. Therefore, power consumption for obtaining necessary luminance can be reduced, and this can contribute to downsizing of the driving circuit and the device as a whole. Each pixel (21) includes a plurality of light emitting regions (11R, 11G, and 11B) corresponding R, G, and B each having an organic EL layer (3), and a plurality of TFT elements (12) provided corresponding to the light emitting regions to control light emission in the respective ...more ...less
8
US20050230641A1
Publication/Patent Number: US20050230641A1
Publication date: 2005-10-20
Application number: 11/082,169
Filing date: 2005-03-16
Abstract: Generating a three-dimensional image of a three-dimensional scene by generating projection data and projecting light rays based on the projection data to generate the three-dimensional image. Sampling of the data is based on at least one physical parameter associated with the projection of light rays by a projection system used to project the light rays. Generating a three-dimensional image of a three-dimensional scene by generating projection data and projecting light rays based on the projection data to generate the three-dimensional image. Sampling of the data is based on at least one physical parameter associated with the ...more ...less
9
US20050231103A1
Publication/Patent Number: US20050231103A1
Publication date: 2005-10-20
Application number: 11/081,747
Filing date: 2005-03-17
Abstract: A flat panel display includes a substrate, an organic light emitting element, a low melting point metal layer and an inorganic composite layer. The organic light emitting element disposed on the substrate includes a first electrode, a second electrode opposing to the first electrode and an organic light emitting layer disposed between the first and second electrodes to generate a light when current flows through the organic light emitting layer. The low melting point metal layer is disposed on the organic light emitting element to protect the organic light emitting element. The inorganic composite layer having a plurality of inorganic substances mixed with one another is disposed on the low melting point metal layer to protect the low melting point metal layer and the organic light emitting element. Therefore, the organic light emitting element is improved, and a manufacturing process of the flat panel display is simplified. A flat panel display includes a substrate, an organic light emitting element, a low melting point metal layer and an inorganic composite layer. The organic light emitting element disposed on the substrate includes a first electrode, a second electrode opposing to the first ...more ...less
10
US20050225238A1
Publication/Patent Number: US20050225238A1
Publication date: 2005-10-13
Application number: 11/090,157
Filing date: 2005-03-28
Inventor: Yamazaki, Shunpei  
Abstract: A full-color flat panel display using emission colors of red, green, and blue is increasingly required to have higher definition, higher aperture ratio and higher reliability. A light emitting device of the invention has an insulator referred to as a bank, that is, a black matrix (BM), between pixels on a substrate side where a light emitting element and a TFT are disposed, and has colored layers of red, green, and blue on a sealing substrate side. This enables right and left margins of a pixel to be taken and a width of the bank to be 30 μm or less, preferably, 5 μm to 20 μm. A full-color flat panel display using emission colors of red, green, and blue is increasingly required to have higher definition, higher aperture ratio and higher reliability. A light emitting device of the invention has an insulator referred to as a bank, that is, a black ...more ...less
11
US20050280359A1
Publication/Patent Number: US20050280359A1
Publication date: 2005-12-22
Application number: 10/870,865
Filing date: 2004-06-18
Abstract: A light-emitting device comprises a stack of organic electroluminescent (EL) elements, wherein an organic EL element in the stack overlaps at least a portion of another organic EL element, and the organic EL elements are electrically separate. Each of the organic EL elements of the stack is activated with a different level of voltage. A light-emitting device comprises a stack of organic electroluminescent (EL) elements, wherein an organic EL element in the stack overlaps at least a portion of another organic EL element, and the organic EL elements are electrically separate. Each of the organic EL elements of ...more ...less
12
US20050280361A1
Publication/Patent Number: US20050280361A1
Publication date: 2005-12-22
Application number: 11/155,562
Filing date: 2005-06-20
Abstract: An organic light-emitting diode (OLED) with an increased service life and a method of manufacturing the same are provided. The OLED is subjected to electromagnetic radiation with a spectrum that at least partially overlaps the absorption spectrum of an organic material layer of the OLED. As a result, the OLED has a longer service life, reduced decay in its initial brightness, and more saturated color than a conventional OLED. An organic light-emitting diode (OLED) with an increased service life and a method of manufacturing the same are provided. The OLED is subjected to electromagnetic radiation with a spectrum that at least partially overlaps the absorption spectrum of an organic material layer of ...more ...less
13
US20050179371A1
Publication/Patent Number: US20050179371A1
Publication date: 2005-08-18
Application number: 10/515,737
Filing date: 2003-05-20
Abstract: An electroluminescent device (13), such as a light emitting diode, which has a light-reflecting surface (10) causing undesirable reflection of ambient light incident on the device is provided with a combination of a reflective circular polarizer (17) and an absorbing circular polarizer (23) to suppress the undesirable reflection of ambient light thus improving the contrast of the device when used under high intensity ambient lighting conditions while maintaining a satisfactory brightness. The reflection band of the reflective circular polarizer regions (17′) of the reflective circular polarizer (17) are preferably tuned to the corresponding emission band of the luminescent regions (9′) of the electroluminescent device to further increase the contrast of the device while substantially maintaining the same brightness. An electroluminescent device (13), such as a light emitting diode, which has a light-reflecting surface (10) causing undesirable reflection of ambient light incident on the device is provided with a combination of a reflective circular polarizer (17) and an absorbing circular ...more ...less
14
US20050179378A1
Publication/Patent Number: US20050179378A1
Publication date: 2005-08-18
Application number: 11/055,500
Filing date: 2005-02-11
Abstract: In an organic EL display panel, one sealing substrate is shared between two organic EL substrates, thereby achieving thinning and lightening of the panel body. The display panel includes a sealing substrate having a first concave portion and a second concave portion opposite the first concave portion, a first transparent glass substrate hermetically sealed on the first concave portion, a first organic light emitting element formed on a surface of the first transparent glass substrate, a first desiccant disposed on a bottom surface of the first concave portion, a second transparent glass substrate hermetically sealed on a the second concave portion, a second organic light emitting element formed on a surface of the second transparent glass substrate, a second desiccant disposed on a surface of the second concave portion, wherein the first organic light emitting element and the second organic light emitting element achieve a shared use of the sealing substrate. In an organic EL display panel, one sealing substrate is shared between two organic EL substrates, thereby achieving thinning and lightening of the panel body. The display panel includes a sealing substrate having a first concave portion and a second concave portion opposite the ...more ...less
15
US20050253506A1
Publication/Patent Number: US20050253506A1
Publication date: 2005-11-17
Application number: 10/995,594
Filing date: 2004-11-22