Semiconductor Energy Laboratory Co., Ltd.

Sharp Kabushiki Kaisha Corporation

Yusuke Nishido

Daiki Nakamura

Shunpei Yamazaki

Satoshi Seo

Toshiki Sasaki

Ryohei Yamaoka

Akihiro Kaita

Koichiro Tanaka

Tomoya Aoyama

Nozomu Sugisawa

Yoshiharu Hirakata

Kaoru Hatano

Kohei Yokoyama

Shigetsugu Yamanaka

Tatsuya Sakuishi

Yusuke Kubota

Minato Ito

A display panel or a display device with high display quality is provided. The display panel includes a light-emitting element, an insulating layer, a protective layer, and a conductive layer. The light-emitting element includes a first electrode, a light-emitting layer, and a second electrode. The light-emitting element emits light to the protective layer side. The insulating layer includes a first opening overlapping with the first electrode. The insulating layer covers an end portion of the first electrode. The light-emitting layer overlaps with the first electrode through the first opening. The second electrode is positioned over the light-emitting layer. The protective layer is over and in contact with the second electrode. The protective layer functions as a protective layer of the light-emitting element. The protective layer includes a second opening overlapping with the insulating layer. The conductive layer is connected to the second electrode through the second opening. The conductive layer functions as an auxiliary wiring of the second electrode.

Semiconductor device with second electrode provided below top surface of first electrode

A display panel includes a plurality of light-emitting elements. Light emitted from a first light-emitting element has a CIE 1931 chromaticity coordinate x of greater than 0.680 and less than or equal to 0.720 and a CIE 1931 chromaticity coordinate y of greater than or equal to 0.260 and less than or equal to 0.320. Light emitted from a second light-emitting element has a CIE 1931 chromaticity coordinate x of greater than or equal to 0.130 and less than or equal to 0.250 and a CIE 1931 chromaticity coordinate y of greater than 0.710 and less than or equal to 0.810. Light emitted from a third light-emitting element has a CIE 1931 chromaticity coordinate x of greater than or equal to 0.120 and less than or equal to 0.170 and a CIE 1931 chromaticity coordinate y of greater than or equal to 0.020 and less than 0.060.

Display device and electronic device

Display panel, display device, display module, and electronic device having auxiliary wiring connected to common electrode

A sealed structure which has high sealing capability and whose border can be slim is provided. The sealed structure includes a pair of substrates whose respective surfaces face each other with a space therebetween, and a glass layer which is in contact with the substrates, defines a space between the substrates, and has at least one corner portion and side portions in continuity with the corner portion. The width of the corner portion of the glass layer is smaller than or equal to that of the side portion of the same. The sealed structure may comprise a highly reliable light-emitting element including a layer containing a light-emitting organic compound provided between a pair of electrodes.

Sealed structure, light-emitting device, electronic device, and lighting device

Display device with overlapped flexible substrates for displaying a wide color gamut image

Display device with overlapped display panels capable of displaying a wide color gamut image on a seamless wide display region

A sealed body in which sealing is uniformly performed is provided. A light-emitting module in which sealing is uniformly performed is provided. A method of manufacturing the sealed body in which sealing is uniformly performed is provided. The sealed body comprises a first substrate alternately provided with a high-reflectivity region with respect to the energy ray and a low-reflectivity region with respect to the energy ray so as to overlap with a sealant surrounding a sealed object, and a second substrate capable of transmitting the energy ray. The sealed object is sealed between the first substrate and the second substrate by heating the sealant with irradiation with the energy ray through the second substrate.

Sealed body, light-emitting module, and method of manufacturing sealed body

A sealing structure with high air-tightness and an organic electroluminescence device with high air-tightness are provided regardless of a pattern of a first metal layer overlapping with glass frit. A second metal layer is provided in a region where a common power supply line overlaps with the glass frit. Since laser light is absorbed or reflected by the second metal layer, the glass frit can be uniformly heated. Therefore, an object to be sealed can be sealed with a low-melting-point glass in which a crack is not easily generated.

Sealing structure and organic electroluminescence device

A sealed structure with high sealing capability, in which a pair of substrates is attached to each other with a glass layer is provided. The sealed structure has a first and second substrates, a first surface of the first substrate facing a first surface of the second substrate, and the glass layer which is in contact with the first and second substrates, defines a space between the first and second substrates, and is provided along the periphery of the first surface of the first substrate. The first substrate has a corner portion. The area of the first surface of the first substrate is smaller than or equal to that of the first surface of the second substrate. In at least one of respective welded regions between the glass layer and the first or second substrate, the width of the corner portion is larger than that of the side portion.

A novel method for forming projections and depressions is provided. A novel sealing structure is provided. A novel light-emitting device is provided. A first step of forming a film containing at least two kinds of metals having different etching rates over a surface; a second step of heating the film so that the metal having a lower etching rate segregates; a third step of selectively etching the metal having a higher etching rate; and a fourth step of selectively etching the surface using a residue containing the metal having a lower etching rate are included.

Method for forming projections and depressions, sealing structure, and light-emitting device

A circuit board in which damage to an electrode is reduced or a light-emitting device in which damage to an electrode is reduced is manufactured. A method for manufacturing the circuit board or the light-emitting device includes the following steps: preparing a processing member including a circuit and a terminal electrode over a first substrate, a separation layer over the terminal electrode, a bonding layer over the separation layer, and a second substrate over the bonding layer; forming a groove in the processing member using a blade capable of cutting processing by being rotated; and removing part of the separation layer, part of the bonding layer, and part of the second substrate to expose part of the terminal electrode.

Method for manufacturing circuit board, method for manufacturing light-emitting device,and light-emitting device

To provide a highly reliable light-emitting device with less occurrence of cracks in a sealant bonding two facing substrates together. In a light-emitting device, a first substrate including a light-emitting unit, and a second substrate are bonded to each other with glass frit. A wiring in the area overlapping with a sealing material formed by melting and solidifying glass frit may be formed of a conductive material having a linear thermal expansion coefficient close to that of a substrate material. More specifically, the difference in the linear thermal expansion coefficient between the conductive material and the substrate material is 5 ppm/K or less at a temperature of 0&#xb0; C. to 500&#xb0; C.

Light-emitting device

A light-emitting device in which deterioration of an organic EL element due to impurities such as moisture or oxygen is suppressed is provided. The light-emitting device includes a first substrate and a second substrate facing each other, a light-emitting element provided over the first substrate, a first sealant provided so as to surround the light-emitting element, and a second sealant provided so as to surround the first sealant. One of the first sealant and the second sealant is a glass layer and the other is a resin layer. A dry agent is provided in a first space surrounded by the first sealant, the second sealant, the first substrate, and the second substrate, or in the resin layer. The light-emitting element is included in a second space surrounded by the first sealant, the first substrate, and the second substrate.

Growing community of inventors

Kanagawa, Japan

Yusuke Nishido