By doping an organic compound functioning as an electron donor (hereinafter referred to as donor molecules) into an organic compound layer contacting a cathode, donor levels can be formed between respective LUMO (lowest unoccupied molecular orbital) levels between the cathode and the organic compound layer, and therefore electrons can be injected from the cathode, and transmission of the injected electrons can be performed with good efficiency. Further, there are no problems such as excessive energy loss, deterioration of the organic compound layer itself, and the like accompanying electron movement, and therefore an increase in the electron injecting characteristics and a decrease in the driver voltage can both be achieved without depending on the work function of the cathode material.

Light Emitting Device

An abrasive article comprising a first group including a plurality of shaped abrasive particles overlying a backing, wherein the plurality of shaped abrasive particles of the first group define a first non-shadowing distribution relative to each other

Abrasive particles having particular shapes and methods of forming such particles

A shaped abrasive particle having a major surface-to-side surface grinding orientation percent difference (MSGPD) of not greater than about 35%.

Abrasive article including shaped abrasive particles

A method of forming a shaped abrasive particle includes having a body formed by an additive manufacturing process.

Shaped abrasive particles and methods of forming same

A method of forming a mixture including a ceramic material into a sheet, sectioning at least a portion of the sheet using a mechanical object and forming at least one shaped abrasive particle from the sheet, such that the at least one shaped abrasive particle can have a two-dimensional shape as viewed in a plane defined by a length and a width of the shaped abrasive particle selected from the group consisting of polygons, ellipsoids, numerals, Greek alphabet characters, Latin alphabet characters, Russian alphabet characters, complex shapes having a combination of polygonal shapes, and a combination thereof.

Shaped abrasive particle and method of forming same

A method of producing a silicon nitride ceramic component, comprising: grinding a silicon nitride sintered body comprising α--Si3 N4 having an average grain size of 0.5 μm or smaller and β'-sialon having an average grain size of 3 μm or smaller in major axis and 1 μm or smaller in minor axis into a predetermined size with a surface roughness of 1-7 μm in ten-point mean roughness; heat treating the same at temperature range of 800°-1200° C. in the air; and standing it to allow to be cooled, whereby providing a residual stress in the ground surface before and after the heat treating as a residual compressive stress at a ratio of 1 or higher of the residual compressive stress after the heat treating to that before the heat treating (residual compressive stress after the heat treating/residual compressive stress before the heat treating), preferably 5 or more.

Method of producing silicon nitride ceramic component

Provided is a partial drive-type light source device with which it is possible to suppress the coloring of a portion intended to be a dark section when a plurality of light-emitting elements are driven in a partial manner. This partial drive-type light source device has: an excitation light source; a phosphor sheet disposed so as to be set away from the excitation light source, the phosphor sheet including a phosphor that releases emitted light in a wavelength region different from that of incident light; and a wavelength-selective reflection film disposed between the excitation light source and the phosphor sheet, the wavelength-selective reflection film transmitting at least part of the light in the wavelength region of the incident light from the excitation light source, and reflecting light in at least part of the wavelength region of the emitted light from the phosphor sheet.

Partial drive-type light source device and image display device using same

Disclosed are a phosphor sheet capable of improving color purity of each of RGB reproduced through a color filter, a white light source device including the phosphor sheet, and a display device including the white light source device The disclosed phosphor sheet is a phosphor sheet for converting LED light into white light, including: a phosphor layer containing at least a phosphor and a resin; and a pair of transparent substrates sandwiching the phosphor layer, in which the phosphor sheet includes a coloring material having an absorption maximum wavelength of at least one of from 480 nm to 510 nm or from 570 nm to 620 nm

Phosphor sheet, white light source device having said phosphor sheet, and display apparatus having said white light source device

PROBLEM TO BE SOLVED: To suppress corrosion of electrodes and the like of an LED element, which is due to sulfur gases generated by deterioration of a sulfide phosphor.SOLUTION: A phosphor-containing resin composition used in the present invention includes: a porous silicate containing zinc as an adsorbent of sulfur gases; a sulfide phosphor; a polymerizable compound; and a polymerization initiator.

Phosphor-containing resin composition

PROBLEM TO BE SOLVED: To provide a phosphor sheet, a white-color light source device equipped with the phosphor sheet, and a display device equipped with the white-color light source device, capable of improving color purity of each color of RGB reproduced through a color filter.SOLUTION: A phosphor sheet of the present invention coverts the light of LED to white color light, and includes a phosphor layer containing at least phosphor and resin and a pair of transparent base materials which pinch the phosphor layer. The phosphor sheet contains a color material having an absorption maximum wavelength of at least any one of 480-510nm and 570-620nm.SELECTED DRAWING: Figure 1

Ito Yasushi

Papers

Method of producing silicon nitride ceramic component

Partial drive-type light source device and image display device using same

Phosphor sheet, white light source device having said phosphor sheet, and display apparatus having said white light source device

Phosphor-containing resin composition

Phosphor sheet, white-color light source device equipped with phosphor sheet, and display device equipped with white-color light source device