39results about How to "Luminous properties are stable" patented technology

A strontium silicate-based phosphor, a fabrication method thereof, and an LED using the strontium silicate-based phosphor are provided. The phosphor is applied to a long wavelength ultraviolet LED, an active luminous LCD, etc., to enable an improvement in the color purity and to enhance the luminous efficiency. The strontium silicate-based phosphor is expressed by a chemical formula: Sr3-xSiO5Eu2+x wherein x is 0<x≦1. The LED using the phosphor has a wide wavelength spectrum, shows a superior color purity characteristic, and can have a very high luminous efficiency as applied in the backlight source of an LED panel or an active luminous LCD.

In a light emitting device having a light emitting element, mounted on a substrate, at least one portion of which is coated with a mold component, the mold component is provided with resin particles and or inorganic material particles, phosphor particles and a sealing resin, and phosphor particles have a specific gravity different from that of resin particles and / or the inorganic material particles, and are made from a grain-shaped phosphor which, when irradiating with excited light, emits fluorescent light having a wavelength longer than that of the excited light, with resin particles and / or the inorganic material particles and the phosphor particles being dispersed in sealing resin; thus, the present invention relates to such a light emitting device and a method for manufacturing the same.

An organic luminescence device is constituted by an organic luminescence lamination structure comprising a pair of an anode and a cathode, and at least one organic compound layer disposed between the anode and the cathode, a hermetic sealing housing enclosing therein the organic luminescence lamination structure and blocking external air, and a drying agent disposed within the hermetic sealing housing. The drying agent comprises a compound represented by the following formula (1):wherein R denotes a substituted or unsubstituted alkenyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted styryl group, a substituted or unsubstituted acyl group, or a substituted or unsubstituted heterocyclic group. The drying agent comprises the compound of the formula (1) in a polymerized form.

A light source device for a spectrophotometer includes a light source chamber, a light source retained in the light source chamber and having an electrode therein for generating light, an electrode support part connected to the electrode and extending outside the light source chamber, and a cover disposed around the electrode support part for covering a portion of the electrode support part situated outside the light source chamber. A cooling mechanism is installed for cooling the light source chamber from an outside thereof so that the light source is not directly cooled by means of the cover. The spectrophotometer includes the light source device.

The present invention provides an organic electroluminescence device that can maintain a stable light emitting characteristic for a long time, an organic electroluminescence panel provided with the organic electroluminescence element, an organic electroluminescence display, organic electroluminescence illumination and a method of manufacturing them. The organic electroluminescence panel is provided with a device substrate, a sealing substrate set opposite to the device substrate and an organic electroluminescence element formed on the sealing substrate side of the device substrate. The organic electroluminescence panel is comprised of a first sealing member to seal the device substrate and the sealing substrate and a second sealing member to coat the organic electroluminescence element at a position separated from the first sealing member, wherein a space defined between the first and second sealing members is reduced in pressure or is in a vacuum state.

An organic EL element includes a functional layer disposed between an anode and a cathode on a substrate and including laminated different organic thin films including a light-emitting layer, and a partition wall which defines the functional layer. Each of the organic thin films is formed by applying a liquid containing a functional layer-forming material on a film-forming region defined by the partition wall and then drying the liquid. The partition wall has at least one step portion provided in the side wall thereof in the thickness direction, and liquid repellency is imparted to the uppermost surface of the partition wall and the upper surface of the step portion. The surface of the side wall excluding the step portion has lyophilicity in comparison with the upper surface of the step portion.

An organic electroluminescent panel, an organic electroluminescent display, an organic electroluminescent lighting device, each include an organic electroluminescent element that maintains stable light emission characteristics for a long period of time. The organic electroluminescent panel includes an element substrate; a sealing substrate facing the element substrate; and an organic electroluminescent element disposed on a sealing substrate side of the element substrate, wherein the organic electroluminescent panel further includes a first sealing member and a second sealing member, the first sealing member sealing a gap between the element substrate and the sealing substrate, the second sealing member covering the organic electroluminescent element, the first sealing member and the second sealing member being arranged with a space therebetween, the space is in a vacuum or reduced pressure state.

Disclosed is an adjustment component that: includes a complex fluoride fluorophore represented by A2(M1-xMnx)F6 (in the formula: M is at least one type of tetravalent element selected from Si, Ti, Zr, Hf, Ge, and Sn; A is at least one type of alkali metal selected from Li, Na, K, Rb, and Cs and including at least Na and / or K; and x is from 0.001 to 0.3); and adjusts the chromaticity and / or color rendering index of illumination light by absorbing light having a wavelength of from 420 nm to 490 nm inclusive, and emitting light including a red wavelength component.

A light source device has a bulb, a discharge medium containing rare gas sealed inside the bulb, an internal electrode disposed inside the bulb, and an external electrode disposed outside the bulb. A holder member holds the external electrode so that the external electrode is opposed to the bulb with a predetermined distance of a space therebetween.

Provided is a red fluorescent body that is represented by general formula: MSiAlN3 (where M represents at least one element selected from Mg, Ca, Sr, and Ba), a portion of M being substituted with Eu,and that has, as a host crystal, the same crystal structure as that of the CaAlSiN3 crystal phase, wherein the red fluorescent body has a bulk density of 0.70-2.30 g / cm<3>. Also, provided is a light-emitting element having the red fluorescent body and a semiconductor light-emitting element capable of exciting the red fluorescent body.

The present invention provides a complex having excellent dispersibility and stable light-emitting properties. The complex (2032) contains a first substance (20322) having the property of binding specifically to a target substance, a quantum dot (20321a) containing silicon as the main component and having a negatively charged surface, and a linker substance (20321b) containing the compound represented by general formula (1) and covering the surface of the quantum dot (20321a), the first substance (20322) being fixed onto the surface of the quantum dot (20321a) via the linker substance (20321b). (1) X-L-Si-(R1)(R2)(OR3) (In the formula, X represents a basic functional group, R1, R2, and R3 each independently represent an alkyl group, and L represents an alkylene group).