Seiko Epson Corporation

Hidetoshi Yamamoto

Tetsuji Fujita

Hideto Ishiguro

Tsukasa Eguchi

Yuiga Hamade

Akio Fukase

Eiji Kanda

Koji Yasukawa

Shunichi Seki

Yuki Hanamura

Koya Shiratori

Shinichi Iwata

Hideo Sasahara

Masayuki Mitsuya

Etsuo Mitsuhashi

Yoshihiro Yamamura

Yuya Ozawa

An input device configured to communicate with an information processing device includes a light source unit configured to emit light; a case including a first surface including a first opening and configured to emit the light toward a target object through the first opening, and a second surface including a second opening and configured to emit the light toward a living body through the second opening; a first light reception unit configured to receive first light from the target object through the first opening of the first surface; and a second light reception unit configured to receive second light from the living body through the second opening of the second surface.

Input device and biometric information detection device

An image display device according to the present disclosure includes a first self-luminous display element that self-emits an image of first color light, a second self-luminous display element that self-emits an image of second color light, a third self-luminous display element that self-emits an image of third color light, and a prism including a dichroic mirror; the first self-luminous display element includes a first functional layer and a first substrate portion, the second self-luminous display element includes a second functional layer and a second substrate portion, and the third self-luminous display element includes a third functional layer and a third substrate portion; the first, the second, and the third substrate portion have an identical configuration in the thickness directions thereof; and the first, the second, and the third functional layer have a mutually different film thickness.

Image display device and virtual image display apparatus

An image display device according to the present disclosure includes a first self-luminous display element that self-emits an image of first color light, a second self-luminous display element that self-emits an image of second color light, a third self-luminous display element that self-emits an image of third color light, and a prism including a dichroic mirror that synthesizes images of three colors, the first, the second, and the third self-luminous display element are each configured to extract light from a side of a semireflective semitransmissive electrode included in the first, the second, and the third self-luminous display element, and at least one of sums of a thickness of a transparent electrode and a thickness of an optical adjustment layer differs from other in the first, the second, and the third self-luminous display element.

An image display module according to the present disclosure includes a first panel configured to emit first imaging light of a red wavelength region having no polarization characteristics, a second panel configured to emit second imaging light of a blue wavelength region having no polarization characteristics, a third panel configured to emit third imaging light of a green wavelength region having no polarization characteristics, and a color combined prism configured to emit combined light combined from the first imaging light, the second imaging light, and the third imaging light. The color combined prism includes a first dichroic mirror having no polarization separation characteristics, and a second dichroic mirror having no polarization separation characteristics, and a peak wavelength in the red wavelength region is equal to and greater than 630 nm and equal to or less than 680 nm.

Image display module and image display device

An image display device according to the present disclosure includes a first self-light-emitting display element that emits light for an image of red light, a second self-light-emitting display element that emits light for an image of blue light, a third self-light-emitting display element that emits light for an image of green light, and a prism having a dichroic mirror that synthesizes images of three colors, in which the first self-light-emitting display element, the second self-light-emitting display element, and the third self-light-emitting display element have a first cathode, a second cathode, and a third cathode, respectively, and when a film thickness of the first cathode is referred to as TR, a film thickness of the second cathode is referred to as TB, and a film thickness of the third cathode is referred to as TG, a relationship TR&#x3c;TG is satisfied.

Image display device and virtual image display device

An image light generation module according to the present disclosure includes a first panel configured to emit first image lighting a red wavelength region not having polarization characteristics, a second panel configured to emit second image light in a blue wavelength region not having polarization characteristics, a third panel configured to emit third image light in a green wavelength region not having polarization characteristics, and a color combining prism configured to emit combined light obtained by combining the first image light, the second image light, and the third image light. The first panel, the second panel, and the third panel each include a pixel structure in which a plurality of pixels are disposed, and aperture ratios of the pixels of the first panel, the second panel, and the third panel differ from each other.

Image light generation module and image display device

A light-emitting element according to the invention includes an anode, a cathode, and a light-emitting layer which is provided between the anode and the cathode, contains a light-emitting material and a host material that holds the light-emitting material, and emits light having a peak wavelength in a near-infrared region by applying a current between the anode and the cathode, wherein the content of the light-emitting material in the light-emitting layer is 30 wt % or more and 70 wt % or less. Further, it is preferred that the light-emitting layer emits light having the peak wavelength of 700 nm or more and 960 nm or less.

Light-emitting element, light-emitting device, light source, authentication device, and electronic apparatus

Provided is a light emitting device configured to suppress deterioration in a balance of white light emission and increase a service life. The light emitting device includes a red light emitting layer, a blue light emitting layer, a green light emitting layer, a first intermediate layer configured to adjust a transfer of holes and electrons between the red light emitting layer and the blue light emitting layer, and a second intermediate layer configured to adjust the transfer of holes and electrons between the blue light emitting layer and the green light emitting layer. The intermediate layers and the blue light emitting layer each contain an assist dopant material, a concentration of the assist dopant material in the intermediate layers being greater than a concentration of the assist dopant material in the blue light emitting layer.

Light emitting device, display device, and electronic device

Provided is a thiadiazole compound with high efficiency and long life which emits light in a near-infrared region and represented by Formula (I).  [In the Formula (I), As each independently represent an aryl group which may have a substituent or a diarylamino group.]

Thiadiazole-based compound, light emitting element compound, light emitting element, light emitting device, authentication device, and electronic device

Provided are a light emitting element with a high efficiency and a long life that emits light in a near-infrared region, and a light emitting device, authentication device and electronic device that include the light emitting element. A light emitting element () according to one aspect of the invention includes an anode (), a cathode (), and a light emitting layer () that is provided between the anode () and the cathode () and that emits light by conducting current between the anode () and the cathode (). The light emitting layer () includes a pyrromethene-based boron complex as a light emitting material and a tetracene-based material as a host material for retaining the light emitting material.

Light emitting element, light emitting device, authentication device, and electronic device

The thiadiazole represented by formula (2) or (4), when used as a light-emitting material in a light-emitting element, allows the light-emitting element to emit near-infrared light: wherein in formulae (2) and (4), each R independently represents a hydrogen atom, an alkyl group, or a substituted or unsubstituted aryl group. There may be a ring formed by a carbon linkage between two adjacent R's.

Thiadiazole, light-emitting element, light-emitting apparatus, authentication apparatus, and electronic device

A thiadiazole contains a basic skeleton represented by any of formulae (1), (2), and (3) in the molecule. 

Thiadiazole, compound for light-emitting elements, light-emitting element, light-emitting apparatus, authentication apparatus, and electronic device

A light emitting element has a cathode, an anode, and a light emitting layer (light emitting section) which is provided between the cathode and the anode and emits light by a driving voltage being applied thereto, in which the light emitting section is configured to include a light emitting material, a host material which holds the light emitting material, and an assist dopant material, one of the host material and the assist dopant material is a material with a high electron transportation property, the other is a material with a high hole transportation property, and when a mobility of holes is &#x3bc;h and a motility of electrons is &#x3bc;e in the light emitting layer, a mobility ratio which is represented by &#x3bc;e/&#x3bc;h satisfies a relationship of formula (I) below.0.01&#x2266;&#x3bc;&#x2266;100&#x2003;&#x2003;(I)

Light emitting element, light emitting device, display apparatus, and electronic equipment having a light emitting layer with host and assist dopant materials with different electron and hole transportation properties

A manufacturing method is a method for manufacturing a light emitting apparatus including a translucent substrate, and a light emitting section and an optical filer section that are arranged in a first region of the substrate when viewed in a normal direction of a first surface of the substrate. The manufacturing method includes: forming a dielectric multilayer film over the first region of the substrate; forming a first electrode on the dielectric multilayer film included in the light emitting section; forming a functional layer with a light emitting layer over the first electrode and the dielectric multilayer film included in the optical filter section; and forming a second electrode having semi-transmissive reflectivity on the functional layer over the first region of the substrate.

Growing community of inventors

Suwa, Japan

Hidetoshi Yamamoto