Abstract: An illuminating device comprises a transparent substrate, an area light emitting device and at least one contact terminal for supplying electric power to the area light emitting device. The area light emitting device comprises a first electrode, a thin film layer having an emission layer and a second electrode formed over the transparent substrate, for emitting light that is transmitted through the transparent substrate. Further, a plurality of light scattering members are provided with the transparent substrate, in a manner such that the density of the scattering members increases commensurate with the distance from said contact terminal.

Abstract: After entering a transparent substrate 9 of an organic EL device and passing through this substrate 9, an outside light L1 further passes through a transparent layer 10, a transparent electrode 12, and an organic light emitting layer 13 to be reflected by a reflective electrode 14. Herein, the reflective electrode 14 has irregularities and therefore the outside light L1 is diffused and reflected by this at various angles. These reflected lights are further diffused when passing through a boundary between the organic light emitting layer 13 and the transparent electrode 12 and through an irregularity surface 11 of the transparent layer 10, and outgo from the transparent substrate 9 toward a liquid crystal panel.

Abstract: A display includes a display surface, an electroluminescent panel, which has a plurality of electroluminescent elements, and a liquid crystal panel, which has a plurality of liquid crystal elements. The liquid crystal panel and the electroluminescent panel overlaps each other in the front and rear direction of the display. The electroluminescent elements and the liquid crystal elements are aligned with each other in the front and rear direction of the display. In the display, at least one of the electroluminescent elements and the liquid crystal elements function as pixels to show an image on the display surface. Therefore, the display can show an image in the appropriate manner in accordance with an environment.

Abstract: A display for displaying a color image. A color filter is arranged facing towards a reflective display surface of a reflective liquid crystal panel. An organic EL panel is arranged between the color filter and the liquid crystal panel. The organic EL panel includes EL sub-pixels, which are luminescent and which are arranged in correspondence to liquid crystal sub-pixels of the liquid crystal panel. Each EL sub-pixel transmits light that is transmitted through regions of the color filter corresponding to the EL sub-pixels. A controller selectively drives at least one of the organic EL panel and the liquid crystal panel.

Abstract: A display includes a display surface, an electroluminescent panel, which has a plurality of electroluminescent elements, and a liquid crystal panel, which has a plurality of liquid crystal elements. The liquid crystal panel and the electroluminescent panel overlaps each other in the front and rear direction of the display. The electroluminescent elements and the liquid crystal elements are aligned with each other in the front and rear direction of the display. In the display, at least one of the electroluminescent elements and the liquid crystal elements function as pixels to show an image on the display surface. Therefore, the display can show an image in the appropriate manner in accordance with an environment.

Abstract: A liquid crystal display apparatus has a liquid crystal panel and a lighting apparatus arranged at the backside of the liquid crystal panel. The lighting apparatus has an organic electroluminescent device as a light source. The organic electroluminescent device includes a pair of electrodes and an organic layer arranged between the electrodes for emitting light when an electric field is applied to the organic layer. An emission spectrum of the organic electroluminescent device has peak in each of red, green, blue, and cyan wavelength zones. Therefore, the colors of printed objects on the liquid crystal display are accurately reproduced.

Abstract: A display unit has first and second substrates, a liquid crystal display, an organic electroluminescent display, a reflector and a plurality of common electrodes. The liquid crystal display is located between the substrates. The organic electroluminescent display is located between the first substrate and the liquid crystal display. The organic electroluminescent display has an organic electroluminescent layer. The reflector reflects a light that passes through the organic electroluminescent layer and the liquid crystal display. The common electrodes are commonly used for both displays. Pixels are formed on both displays. In each display, each pixel is located at a position that corresponds to one of the common electrodes.

Abstract: A luminescence cell having a novel structure includes a transparent conductor having a surface on which first and second regions are defined. A first electroluminescence element, including a first organic layer containing an organic luminescence material and a first electrode laminated on the first organic layer, is arranged on the first region. A second electroluminescence element, including a second organic layer containing an organic luminescence material and a second electrode laminated on the second organic layer, is arranged on the second region. The first electrode is physically separated from the second electrode. The first layer is physically separated from the second layer. The first and second organic layers emit light when current flows between the first and second electrodes. The light emitted from the organic layer passes through the transparent conductor and exits the luminescence cell.

Abstract: A lighting apparatus includes a first organic electroluminescence device. The first organic electroluminescence device has a substrate, a first organic electroluminescence element, which is formed on the substrate, and a light emitting portion. At least one second organic electroluminescence device is stacked on the light emitting portion. The second organic electroluminescence device has a transparent substrate and a transparent second organic electroluminescence element, which is formed on the transparent substrate. Therefore, the lighting apparatus can freely set the illumination intensity.

Abstract: An organic electroluminescent element has a substrate, a first electrode, an organic layer, a second electrode, a sealing member, a first terminal, and a through hole. The first electrode is layered on the substrate. The organic layer that includes a light-emitting layer is layered on the first electrode. The second electrode is layered on the organic layer. The sealing member partially covers the second electrode. A portion of the second electrode, which is not covered with the sealing member, functions as a second terminal. The first terminal is provided on the sealing member on a side opposite to the second electrode. The through hole extends through the sealing member, the second electrode, and the organic layer and is used for connecting the first electrode and the first terminal. The first electrode and the second electrode are electrically connected to a power source.

Abstract: An illuminating device comprises a transparent substrate, an area light emitting device and at least one contact terminal for supplying electric power to the area light emitting device. The area light emitting device comprises a first electrode, a thin film layer having an emission layer and a second electrode formed over the transparent substrate, for emitting light that is transmitted through the transparent substrate. Further, a plurality of light scattering members are provided with the transparent substrate, in a manner such that the density of the scattering members increases commensurate with the distance from said contact terminal.

Abstract: Disclosed is the use of a novel coumarin derivative with a specific molecular structure. The physical and optical properties of said coumarin derivative render it very useful as a luminescence-assisting agent to be used in highly durable organic EL devices.

Abstract: An organic electroluminescent element has a first electrode, a second electrode and an organic electroluminescent layer. The first electrode has a first luminescent region and a first terminal extending from the first luminescent region. The second electrode has a second luminescent region and a second terminal extending from the second luminescent region. The first electrode is made of a material having a higher volume resistivity than the second electrode. The organic electroluminescent layer is interposed between the first electrode and the second electrode. The first luminescent region and the second luminescent region respectively contact the organic electroluminescent layer. A length of a boundary between the first luminescent region and the first terminal is greater than a length of a boundary between the second luminescent region and the second terminal.

Abstract: An organic electroluminescent element includes a plurality of luminescent regions. Each luminescent region has a first electrode that is transparent and a second electrode. Each luminescent region has an organic layer that is sandwiched between the first electrode and the second electrode for emitting light. The first electrodes are physically adjacently located. An insulation portion is provided between each of the first electrodes. The plurality of luminescent regions are electrically and serially connected.

Abstract: An electrode of the organic EL device includes a substantially rectangular electrode region that contacts an organic layer, a terminal section to which an external drive circuit is connected, and a conductive section that electrically connects the terminal section to the electrode region. The conductive section includes a first joint connected to the terminal section, a second joint connected to the outer periphery of the electrode region, and a conductive section main body that extends between the first joint and the second joint to electrically connect the first joint to the second joint. Therefore, the difference of magnitude between currents flowing at respective positions in a luminous region in the organic EL device is lessened.

Abstract: A dam member is formed around a light emitting region of an El element so as to surround the entire outer periphery of the light emitting region. The dam member is formed on an interface between a glass substrate and a sealing layer in a portion where neither a first electrode extraction portion of an anode nor a second electrode extraction portion of a cathode are formed, an interface between the sealing layer and the first electrode extraction portion in a portion where the first electrode extraction portion is formed, and an interface between the second electrode extraction portion and the glass substrate in a portion where the second electrode extraction portion is formed. Even if moisture or gas intrudes into those interfaces, the dam member absorbs the moisture or gas and prevents further intrusion beyond the dam member.

Abstract: A coating composition comprising the reaction product of a benzotriazole compound having a polymerizable vinyl group and a hydroxyl group with a silane compound and/or a (partial) hydrolyzate thereof is applied to plastic substrates, typically polycarbonate resin substrates to form transparent coatings having improved mar, weather and chemical resistance.

Abstract: A method and device for detecting gas in the ambient atmosphere and/or the concentration of gas in the ambient atmosphere by providing an electroluminescence device. The detection is performed based on the presence of a dark spot in the electroluminescence device, which is caused by exposure of the electroluminescence device to gas in the ambient atmosphere.

Abstract: A display for displaying a color image in accordance with the surrounding environment. The display includes a transmissive liquid crystal panel and a color filter arranged on an organic EL panel. The organic EL panel includes EL sub-pixels, arranged on the opposite side of a display surface of the liquid crystal panel, which emit white light in accordance with each liquid crystal sub-pixel of the liquid crystal panel. The organic EL panel further includes a light reflecting portion for reflecting light entering from the liquid crystal panel towards the liquid crystal panel. The display includes a first driver for displaying an image on the liquid crystal panel, a second driver for displaying an image on the organic EL panel, and a controller for determining whether to use the first driver and whether to use the second driver to display an image.

Abstract: A display for displaying a color image. A color filter is arranged facing towards a reflective display surface of a reflective liquid crystal panel. An organic EL panel is arranged between the color filter and the liquid crystal panel. The organic EL panel includes EL sub-pixels, which are luminescent and which are arranged in correspondence to liquid crystal sub-pixels of the liquid crystal panel. Each EL sub-pixel transmits light that is transmitted through regions of the color filter corresponding to the EL sub-pixels. A controller selectively drives at least one of the organic EL panel and the liquid crystal panel.