Ricoh Company, Ltd.

Joled Inc.

Panasonic Corporation

National Institute of Advanced Industrial Science and Technology

Kazuhiro Yoneda

Noriyuki Matsusue

Takaaki Negoro

Katsuhiko Aisu

Hirofumi Watanabe

Katsuyuki Sakurano

Yasukazu Nakatani

Keiko Kurata

Yoshihiko Miki

Naoki Fukuoka

Yoshinori Ueda

Minh Hiep Hoang

Masaki Nishimura

Jun Hashimoto

Yasushi Nagamune

Toshitaka Ota

Kunihiro Tan

Eiji Iwauchi

Kazuki Sawa

Yutaka Hayashi

Takahiro Komatsu

Hiroaki Yamane

Toshiyuki Ikeoh

Tatsuya Matsumi

Kazuhiro Yokota

Masahiro Higashiguchi

Hideyuki Shirahase

Hiroki Tsujimura

Minhhiep Hoang

Kazuki Nagasawa

Hirobumi Watanabe

A measuring apparatus includes an irradiation device configured to irradiate an object with light; an imaging device configured to capture an image of the object irradiated with the light and generate captured image data; and circuitry. The circuitry is configured to measure the object based on the captured image data generated by the imaging device; and adjust, with a moving mechanism, relative positions among the object, the irradiation device, and the imaging device in response to a determination that the captured image data includes a region satisfying a predetermined condition.

Measuring apparatus, movable apparatus, robot, electronic device, fabricating apparatus, and measuring method

A display device includes: a luminance converter which converts input gradation value into a corresponding target luminance value; a luminance correction calculator which calculates output gradation value from the target luminance value and calculates a corrected luminance value from the output gradation value, using an efficiency residual ratio which is an index representing the light-emitting element deterioration degree; a current stress calculator which converts current stress amount on the light-emitting element calculated from the corrected luminance value into current stress amount when reference current flows through the light-emitting element, and calculates the accumulated current stress amount; a temperature stress calculator which converts temperature stress amount on the light-emitting element under environmental temperature into temperature stress amount on the light-emitting element under reference temperature, and calculates the accumulated current stress amount; and an efficiency residual ratio calculator which updates the efficiency residual ratio, using the accumulated current and temperature stress amounts.

Display device and display device driving method

An optical device according to an embodiment of the present disclosure includes a light source in which a plurality of light emitting elements are arranged at a predetermined distance, an optical system configured to convert light beams from the plurality of light emitting elements into line light beams, and a light deflection element configured to deflect each of the line light beams. Each of the line light beams is caused to be incident on the light deflection element such that a longitudinal direction of each of the light beams is aligned with a direction of a rotating axis of the light deflection element.

Optical device, measurement device, robot, electronic apparatus, mobile object, and shaping device

According to one embodiment, a light source includes a plurality of light-emitting elements each including one or more surface-emitting lasers; and a plurality of detecting elements located on a same substrate as the light-emitting elements. The detecting elements individually detect quantities of output light of the light-emitting elements.

Light source, optical device, measuring device, robot, electronic apparatus, movable structure, and manufacturing apparatus

A plurality of surface emitting lasers are formed on the single surface emitting laser element. The plurality of surface emitting lasers have respective emission wavelengths selected from wavelengths satisfying condition of:0&#x3c;&#x3bb;&#x2212;&#x3bb;&#x2264;5.36&#xd7;10&#x3bb;&#x2212;&#xd7;5.83&#xd7;10&#x3bb;32.4 where a first emission wavelength is &#x3bb;[nm], a second emission wavelength shorter than the first emission wavelength is &#x3bb;[nm], and a middle wavelength between the first emission wavelength and the second emission wavelength is &#x3bb;[nm]. At least one of the plurality of surface emitting lasers has an emission wavelength different from an emission wavelength of another surface emitting laser.

Surface emitting laser element, illumination device, projection device, measurement device, robot, electronic apparatus, mobile body, and modeling device

A display panel including a power supplying auxiliary electrode above the substrate in at least one gap among gaps between pixel electrodes in row and column directions, not in contact with the pixel electrodes, extending in the row and/or column direction. An intermediate layer is on or above light-emitting layers and the auxiliary electrode, and includes a fluoride of an alkali metal or an alkaline earth metal. A functional layer is on or above the intermediate layer, and includes an organic material that facilitates electron transport and/or facilitates electron injection and a rare earth metal dopant. A counter electrode is on or above the functional layer. Further, 1&#x2264;x&#x2264;3, 20&#x2264;y&#x2264;40, and y&#x2265;10x+10, where x is film thickness of the intermediate layer in nanometers, and y is percentage by weight of the rare earth metal dopant in the functional layer.

Display panel and display panel manufacturing method

A display device includes: a luminance converter which converts input gradation value into a corresponding target luminance value; a luminance correction calculator which calculates output gradation value from the target luminance value using efficiency residual ratio representing a deterioration degree of a light-emitting element, and calculates a corrected luminance value therefrom; a current stress calculator which converts current stress amount on a light-emitting element calculated from the corrected luminance value into current stress amount when first reference current flows through the light-emitting element, and accumulates this to calculate an accumulated first stress amount; a CB stress calculator which converts CB stress amount on the light-emitting element into current stress amount when second reference current flows through the light-emitting element, and accumulates this to calculate an accumulated second stress amount; and an efficiency residual ratio calculator which updates the efficiency residual ratio, using the accumulated first and second stress amounts calculated.

Disclosed is a self light-emitting element including a first electrode, a light-emitting layer disposed above the first electrode, a function layer disposed above the light-emitting layer, and doped with a metal, and a second electrode disposed above the function layer, in which the function layer has a multilayer structure of at least three layers including an uppermost layer, a lowermost layer, and an intermediate layer between the uppermost layer and the lowermost layer, and the intermediate layer is doped with the metal at a lower concentration than the uppermost layer and the lowermost layer.

Self light-emitting element and manufacturing process of self light-emitting element, self light-emitting display device, and electronic equipment

An organic electroluminescent (EL) element includes: a first electrode; an interlayer formed above the first electrode; an organic light-emitting layer formed using the interlayer as a foundation; and a second electrode formed above the organic light-emitting layer. The organic light-emitting layer contains at least a host material and a dopant material. The interlayer is formed using a material which has an energy gap larger than an energy gap of the dopant material and a highest occupied molecular orbital (HOMO) level deeper than a HOMO level of the dopant material.

Organic EL element and display device

An organic EL element includes: an anode; a light-emitting layer that is disposed above the anode; a first interlayer that is disposed on the light-emitting layer; a second interlayer that is disposed on the first interlayer; a functional layer that is disposed on the second interlayer; and a cathode that is disposed above the functional layer. The first interlayer includes a fluorine compound including a first metal that is an alkali metal or an alkaline-earth metal. The second interlayer includes a second metal that has a property of cleaving a bond between the first metal and fluorine in the fluorine compound. The functional layer has at least one of an electron transport property and an electron injection property. A thickness D1 of the first interlayer and a thickness D2 of the second interlayer satisfy 3%&#x2264;D2/D1&#x2264;25%.

Organic EL element and method for manufacturing organic EL element

An organic electroluminescence device includes, in order, a first electrode, a hole transport layer, an organic light-emitting layer, an electron transport layer, and a second electrode. The hole transport layer is configured by a coated film. The organic light-emitting layer is configured by a coated film. The organic light-emitting layer has a light emission region provided in the organic light-emitting layer on side of the electron transport layer.

Organic electroluminescence device, organic electroluminescence unit, and electronic apparatus

An organic electroluminescent unit is provided with a plurality of organic electroluminescent elements. At least one of the organic electroluminescent elements includes, in order, a first electrode, a hole transport layer, a light-emitting layer, an electron transport layer, and a second electrode. The hole transport layer, the light-emitting layer, and the electron transport layer satisfy the following expressions:&#x394;(1)&#x2265;0 eV&#x394;(1)=&#x2212;2&#xd7;where Erepresents a T1 level of the hole transport layer, Erepresents a T1 level of the electron transport layer, and Erepresents a T1 level of the light-emitting layer.

Organic electroluminescent unit

Disclosed is an organic electroluminescent element including a first electrode, a hole transport layer, a light emitting layer, an electron transport layer and a second electrode in this order. The light emitting layer has a first light emitting layer including a coating film on the hole transport layer side, and has a second light emitting layer including a vapor-deposited film on the electron transport layer side.

Organic electroluminescent element, organic electroluminescent panel, organic electroluminescent device and electronic apparatus

There is provided an improved light source including a plurality of light emitting elements in a surface. An arrangement of the plurality of light emitting elements fulfills, in an assumed projection area, an element interval at which irradiation light beams of the plurality of light emitting elements overlaps, and fulfills an element interval at which a speckle pattern of each of the irradiation light beams obtained in the assumed projection area is different for each of the irradiation light beams.

Light source, projection device, measurement device, robot, electronic device, mobile object, and shaping apparatus

An organic light-emitting device including: a substrate; an anode above the substrate; wiring above the substrate, spaced away from the anode in a direction parallel to a main surface of the substrate; a light-emitting layer above the anode, containing an organic light-emitting material; an intermediate layer on the light-emitting layer and the wiring, continuous over the light-emitting layer and the wiring and containing a fluoride of a first metal which is an alkali metal or an alkaline earth metal; an organic functional layer on the intermediate layer, continuous over the light-emitting layer and the wiring and made of an organic material having an electron transporting property or an electron injection property and doped with a second metal having a property of cleaving a bond between the first metal and fluorine in the fluoride; and a cathode on the organic functional layer, continuous over the light-emitting layer and the wiring.

Growing community of inventors

Osaka, Japan

Kazuhiro Yoneda