Seiko Epson Corporation

Yuiga Hamade

Tetsuji Fujita

Hidetoshi Yamamoto

Takumi Kodama

Yasunori Koide

Takashi Toya

Hitoshi Ota

Mitsutaka Ide

Jun Irobe

An optical display device includes an image display element configured to emit image light, a deflection member configured to deflect the image light emitted from the image display element, an optical device including a lens barrel for accommodating a lens group including an objective lens and an eyepiece, and a moving mechanism provided at the lens barrel of the optical device and configured to hold a state in which at least the deflection member is moved in a direction intersecting an optical axis of the lens group.

Optical display device

An optical modulation device includes a first electro-optical device including a first light-emitting element including a light-emitting layer emitting light including a red wavelength region, a second electro-optical device including a second light-emitting element including a light-emitting layer emitting light including a green wavelength region, a third electro-optical device including a third light-emitting element including a light-emitting layer emitting light including a blue wavelength region, and a prism that synthesizes light emitted from the first, second and third electro-optical devices. Each of the first, second and third light-emitting elements includes a first electrode, a second electrode, and a conductive layer provided therebetween and having a lower reflectance with respect to the light emitted from the light-emitting layer than from the first electrode. A thickness of the conductive layer of the third light-emitting element is thinner than thicknesses of the conductive layers of the first and second light-emitting elements.

Optical modulation device and display device

An electro-optical device includes, in plan view, a light-emitting region B that emits blue light, a coloring layer Cf_B that transmits the blue light, a light-emitting region Gthat is disposed adjacent to the light-emitting region B in a Y direction and emits green light, a coloring layer Cf_G that is provided overlapping the light-emitting region Gand transmits the green light, a light-emitting region R that is disposed adjacent to the light-emitting region Gin an X direction and emits red light, a coloring layer Cf_R that is provided overlapping the light-emitting region R and transmits the red light, a light-emitting region Gthat is disposed adjacent to the light-emitting region Gin an E direction and emits green light, and a coloring layer Cf_G that is provided overlapping the light-emitting region Gand transmits the green light, wherein the coloring layer Cf_B includes a region that overlaps the light-emitting region B in plan view, and a region located between the light-emitting regions Gand Gin plan view.

Electro-optical device and electronic apparatus

An optical module of the present disclosure includes a first panel including a first light-emitting element, a first power supply wiring and a second power supply wiring; a second panel including a second light-emitting element having light emission luminance per unit current lower than that of the first light-emitting element, a third power supply wiring and a fourth power supply wiring; and a prism configured to synthesize first image light emitted from the first panel and second image light emitted from the second panel. A first potential difference is smaller than a second potential difference, the first potential difference being a difference between a potential applied to the first power supply wiring and a potential applied to the second power supply wiring, the second potential difference being a difference between a potential applied to the third power supply wiring and a potential applied to the fourth power supply wiring.

Optical module and image display device

An optical module according to the present disclosure includes a first electro-optical device having a first light-emitting element emitting light including a first wavelength region, and a first light-emitting control transistor provided corresponding to the first light-emitting element, a second electro-optical device having a second light-emitting element emitting light including a second wavelength region shorter than the first wavelength region, and a second light-emitting control transistor provided corresponding to the second light-emitting element, and a prism configured to synthesize light emitted from the first electro-optical device, and light emitted from the second electro-optical device, wherein a first period in which the first light-emitting control transistor is in an ON-state in one frame is shorter than a second period in which the second light-emitting control transistor is in an ON-state in the one frame.

Optical module, electro-optical device and image display 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 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.

Image display device and virtual image display apparatus

An image light generation device includes a first panel configured to emit a first image light including a blue wavelength region, a second panel configured to emit a second image light including a wavelength region different from the blue wavelength region, and a color combining prism configured to combine the first image light and the second image light. The first panel includes a plurality of first pixels, each of the plurality of first pixels includes a first light emitting element, and a first transistor provided corresponding to the first light emitting element, the second panel includes a plurality of second pixels, each of the plurality of second pixels includes a second light emitting element, and a second transistor provided corresponding to the second light emitting element, and a size of the first transistor is greater than a size of the second transistor.

Image light generation device 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 technique for realizing energy saving. According to a biological information acquisition device, light emitting power per unit area of one light emitting element emitting light when first biological information is acquired is weaker than light emitting power per unit area of one light emitting element emitting light when second biological information is acquired.

Biological information acquisition device and biological information acquisition method

A technique restrains degradation of a light emitting element. A biological information acquisition device acquires light receiving result by causing a light receiving unit to receive light emitted by a light emitting unit serving as a measurement-purpose light emitting unit, and acquires biological information by using the light receiving result. The light is emitted from the light emitting unit so as to acquire the light receiving result for one time, while a plurality of light emitting patterns are switched between a light emitting element which emits the light and a light emitting element which does not emit the light in a plurality of the light emitting elements.

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

To provide a light-emitting element which emits light in a near-infrared range and has high efficiency and long life, and a light-emitting device, an authentication device, and an electronic apparatus, each of which includes this light-emitting element. A light-emitting elementof the invention includes an anode, a cathode, a light-emitting layerwhich is provided between the anodeand the cathodeand emits light in a wavelength range of 700 nm or more by applying a current between the anodeand the cathode, and an electron transport layerwhich is provided between the light-emitting layerand the cathode, and includes a first electron transport layerlocated on the cathodeside and a second electron transport layerlocated on the light-emitting layerside, wherein the first electron transport layercontains a first anthracene-based compound, which has an anthracene skeleton and a nitrogen-containing heterocyclic skeleton, and has an average thickness of less than 8 nm, and the second electron transport layercontains a second anthracene-based compound, which has an anthracene skeleton but does not have a heterocyclic skeleton.

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

To provide a light-emitting element which emits light in a near-infrared region and has high efficiency and long life, and a light-emitting device, an authentication device, and an electronic apparatus, each of which includes this light-emitting element. A light-emitting deviceof the invention includes a light-emitting elementA including an anode, a cathode, and a light-emitting layerwhich is provided between the anodeand the cathodeand emits light in a near-infrared region by applying a current between the anodeand the cathode, wherein the device emits visible light with a luminance of 5 cd/mor more when a current is applied between the anodeand the cathodeat a current density of 300 A/cmor less.

Growing community of inventors

Fujimi-machi, Japan

Yuiga Hamade