Koga, Japan
Koga, Japan

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Disclosed are an organic EL lighting panel substrate and associated manufacturing method that can improve the manufacturing efficiency of an organic EL lighting panel substrate to reduce the cost and can achieve an organic EL lighting panel of excellent yield and reliability. The organic EL lighting panel substrate includes: a translucent substrate; a transparent electrode; and an auxiliary electrode. The transparent electrode is arranged on a surface of the translucent substrate and the auxiliary electrode is electrically connected to the transparent electrode. The organic EL lighting panel substrate further includes: an insulating layer at the position corresponding to an electrode lead-out part of an upper electrode of an organic EL layer that forms an organic EL lighting panel, the upper electrode being provided above the translucent substrate in such a manner as to face the transparent electrode; and a conductive layer between the translucent substrate and the insulating layer.


To provide a transparent resin layer for use in an organic EL panel, capable of solving a problem with light extraction efficiency caused by the wavelength dependency (wavelength dispersion) of the refractive index of light. A transparent resin layer 12 for use in an organic EL panel includes: a transparent resin 121; and first fine particles 122 having an average particle diameter from 300 to 50000 nm and second fine particles 123 having an average particle diameter from 1 to 300 nm dispersed in the transparent resin 121, and the fine particles have a function as at least either a light scattering material or a light-dispersing material. Alternatively, a transparent resin layer 42 for use in an organic EL panel includes a transparent resin 421 having an uneven structure, the uneven structure includes first projections 422 in which at least either the widths or the heights are from 300 to 1000 nm and second projections 423 in which at least either the widths or the heights are from 10 to 300 nm, and at least either the shapes or the sizes of the projections in the uneven structure have no periodicity.


The present invention aims to provide an organic EL panel control device, a light source device, and an organic EL panel control method, capable of inhibiting the change (shift) in color temperature of white light produced by an organic EL panel to be controlled. The organic EL panel control device according to the present invention includes a luminance control unit. The luminance control unit controls, among a plurality of organic EL elements with different emission colors in an organic EL panel to be controlled, luminances of organic EL elements other than a reference organic EL element having a shortest luminance life in such a manner that, with reference to a luminance of the reference organic EL element, white light produced by additive color mixture of different colors of light emitted from the plurality of organic EL elements has the same color temperature as a previously set color temperature.


Disclosed is an organic EL panel translucent substrate that can prevent or reduce the color gap/coloring of an organic EL panel. In order to achieve the above object, organic EL panel translucent substrate 201 is formed of resins 203 and 204 and is substantially optically isotropic in its in-plane direction and thickness direction.


The present invention provides a method for repairing an organic EL element and a method for manufacturing an organic EL panel that can reduce a production cycle time. A method for repairing an organic EL element includes an application step of repeatedly applying a pulse voltage having ON-period and OFF-period to an organic EL element. In the application step, the pulse voltage is a forward voltage or a reverse voltage, and the ON-period is equal to or longer than a time constant that is the product of an element capacity of the organic EL element and a wiring resistance including the element.


The present invention provides an image-capturing device that reduces the effect of direct incident light on an image-capturing element and allows a high contrast image to be obtained. The present invention provides an image-capturing device including: an image-capturing element 11; a light emitting element 13; and an image data correction unit, wherein the light emitting element 13 irradiates a subject 14 with light, the image-capturing element 11 senses the light 16 reflected by the subject 14 and generates an image data, and the image data correction unit corrects the image data by subtracting incident light 15 directly entered into the image-capturing element 11 from the light emitting element 13 without being reflected by the subject 14 from the image data.


An organic EL light emitting device includes a transparent substrate, a transparent electrode film formed on the substrate, a positive electrode contact portion in contact with a part of the transparent electrode film and electrically connected therewith, an insulating layer formed on the transparent electrode film such that the an insulating layer covers a portion excluding a light emitting part, an organic light emitting layer formed on the transparent electrode film and on the insulating layer, a negative electrode film formed on the organic light emitting layer, a negative electrode contact portion in contact with at least a part of the negative electrode film and electrically connected therewith, and a protective layer for separating and electrically insulating the positive electrode contact portion and the transparent electrode film from the negative electrode contact portion.


Patent
NEC Lighting Ltd. | Date: 2014-09-04

Anodes of a plurality of organic EL elements are connected together. A forward bias voltage relative to the potential of anodes and a reverse bias voltage are alternately applied to cathodes of the plurality of organic EL elements at a predetermined period. The ratio of the time for which the reverse bias voltage is applied and the time for which the forward bias voltage is applied is increased.


An organic EL light emitting device (100) comprises a transparent substrate (1), a transparent electrode film (2) formed on the substrate (1), a positive electrode contact portion (4) in contact with a part of the transparent electrode film (2) and electrically connected therewith, an insulating layer (7) formed on the transparent electrode film (2) such that the an insulating layer (7) covers a portion excluding a light emitting part, an organic light emitting layer (8) formed on the transparent electrode film (2) and on the insulating layer (7), a negative electrode film (9) formed on the organic light emitting layer (8), a negative electrode contact portion (5) in contact with at least a part of the negative electrode film (9) and electrically connected therewith, and a protective layer (3) for separating and electrically insulating the positive electrode contact portion (4) and the transparent electrode film (2) from the negative electrode contact portion (5). The transparent electrode film (2) is formed without a gap across an area including areas where the protective layer (3), the positive electrode contact portion (4), the negative electrode contact portion (5), the insulating layer (7), the organic light emitting layer (8) and the negative electrode film (9) are formed.


An organic EL light emitting device includes a transparent substrate, a transparent electrode film formed on the substrate, a positive electrode contact portion in contact with a part of the transparent electrode film and electrically connected therewith, an insulating layer formed on the transparent electrode film such that the an insulating layer covers a portion excluding a light emitting part, an organic light emitting layer formed on the transparent electrode film and on the insulating layer, a negative electrode film formed on the organic light emitting layer, a negative electrode contact portion in contact with at least a part of the negative electrode film and electrically connected therewith, and a protective layer for separating and electrically insulating the positive electrode contact portion and the transparent electrode film from the negative electrode contact portion.

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