Semiconductor Energy Laboratory Co., Ltd.

Tsunenori Suzuki

Satoshi Seo

Sachiko Kawakami

Harue Osaka

Naoaki Hashimoto

Nobuharu Ohsawa

Yusuke Takita

Satoko Shitagaki

Hiroki Suzuki

Ryoji Nomura

Hiroshi Kadoma

Kyoko Takeda

Hiromi Seo

Kaori Ogita

Takumu Okuyama

Hiromi Nowatari

Takako Takasu

Takahiro Ushikubo

Toshiki Sasaki

Kunihiko Suzuki

Masakazu Egawa

Hiromitsu Kido

Anna Tada

Harue Nakashima

Yuko Kawata

Shunpei Yamazaki

Hideko Inoue

Takeyoshi Watabe

Ryohei Yamaoka

Kaoru Ikeda

Daisuke Kubota

Yusuke Nonaka

Ryo Hatsumi

Yuji Iwaki

Taisuke Kamada

Yasuhiro Niikura

Shogo Uesaka

Yui Yamada

Kanta Abe

Tomoya Hirose

Nozomi Komatsu

Eriko Saijo

Tamae Takano

Yoshinobu Asami

Mikio Yukawa

Takehisa Sato

Riho Kataishi

Takuya Haruyama

Tomohiro Kubota

Hiroko Nomura

Hideko Yoshizumi

Kazuhiko Fujita

Ayumi Sato

Toshiki Hamada

Haruki Katagiri

Takashi Shingu

Noboru Inoue

Hayato Yamawaki

Rina Nakamura

Rina Shimazaki

An object of one embodiment of the present invention is to provide a novel organic compound. The organic compound is a triarylamine derivative. The triarylamine derivative has an aryl group including a skeleton in which a naphthyl group is bonded to a naphthylene group. The other two aryl groups are each independently a phenyl group, a biphenyl group, or a terphenyl group. These groups may each have a substituent. As the substituent, an alkyl group having 1 to 6 carbon atoms or a cycloalkyl group having 3 to 6 carbon atoms can be selected.

Organic compound, light-emitting element, light-emitting device, electronic device, display device, and lighting device

Provided is a novel light adjustment program that can make a human feel at ease. Provided is the light adjustment program that includes the steps of obtaining basic data having 1/f fluctuation characteristics; generating first smoothed data and second smoothed data by performing moving average processing with different periods on the basic data having 1/f fluctuation characteristics; generating light adjustment data by subjecting the first smoothed data and the second smoothed data to arithmetic processing; and changing luminance of a light-emitting device in time series in accordance with the light adjustment data.

Light adjustment program, light-emitting apparatus, and lighting device

A triarylamine derivative represented by a general formula (G1) given below is provided. Note that in the formula, Ar represents either a substituted or unsubstituted phenyl group or a substituted or unsubstituted biphenyl group; α represents a substituted or unsubstituted naphthyl group; β represents either hydrogen or a substituted or unsubstituted naphthyl group; n and m each independently represent 1 or 2; and Rto Reach independently represent any of hydrogen, an alkyl group having 1 to 6 carbon atoms, or a phenyl group.

Triarylamine derivative, light-emitting substance, light-emitting element, light-emitting device, and electronic device

Objects of the present invention are to provide: a light-emitting element having a long lifetime and good emission efficiency and drive voltage. One embodiment of the invention is a light-emitting element including, between an anode and a cathode, at least a stack structure in which a first layer, a second layer, and a light-emitting layer are provided in order from the anode side. The first layer includes a first organic compound and an electron-accepting compound. The second layer includes a second organic compound having a HOMO level differing from the HOMO level of the first organic compound by from −0.2 eV to +0.2 eV. The light-emitting layer includes a third organic compound having a HOMO level differing from the HOMO level of the second organic compound by from −0.2 eV to +0.2 eV and a light-emitting substance having a hole-trapping property with respect to the third organic compound.

Light-emitting element, light-emitting device, electronic device, and lighting device

A novel light-emitting device that is highly convenient, useful, or reliable is provided. An organic compound in which a substituted or unsubstituted naphtho[2,3-c]carbazolyl group or a substituted or unsubstituted benzo[c]naphtho[2,3-g]carbazolyl group is bonded to a substituted or unsubstituted 9H-carbazolyl group or a substituted or unsubstituted anthryl group through a substituted or unsubstituted arylene group. The arylene group has 6 to 13, inclusive, carbon atoms.

Organic compound, light-emitting device, light-emitting apparatus, electronic device, display device, and lighting device

A novel organic compound is provided. That is, a novel organic compound that is effective in improving element characteristics and reliability is provided. The organic compound includes an anthracene skeleton and a carbazole skeleton, and is represented by the following general formula (G1). (In the formula, Ar represents a substituted or unsubstituted arylene group having 6 to 13 carbon atoms, and when the arylene group has substituents, the substituents may be bonded to each other to form a ring. Furthermore, Cz represents a substituted or unsubstituted carbazole skeleton. Furthermore, each of Rto Rand Rto Rindependently represents any of hydrogen, a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 6 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 13 carbon atoms. Furthermore, at least one of the following pairs may form a fused ring: Rand R; Rand R; Rand R; or Rand R.

Organic compound, light-emitting element, light-emitting device, electronic device, and lighting device

A novel organic compound is provided. Alternatively, an organic compound that exhibits light emission with favorable chromaticity is provided. Alternatively, an organic compound that exhibits blue light emission with favorable chromaticity is provided. Alternatively, an organic compound with favorable emission efficiency is provided. Alternatively, an organic compound having a high carrier-transport property is provided. Alternatively, an organic compound with favorable reliability is provided. An organic compound including at least one amino group in which any one of a substituted or unsubstituted dibenzofuranyl group, a substituted or unsubstituted dibenzothiophenyl group, and a substituted or unsubstituted carbazolyl group is boneded to any one of a substituted or unsubstituted naphthobisbenzofuran skeleton, a substituted or unsubstituted naphthobisbenzothiophene skeleton, and a substituted or unsubstituted naphthobenzofuranobenzothiophene skeleton is provided.

Organic compound, light-emitting element, light-emitting device, electronic device, display device and lighting device

A novel organic compound is provided. An organic compound represented by General Formula (G1) below is provided. Note that in General Formula (G1), one of A and B represents a group represented by General Formula (g1) below, and the other of A and B, R1 to R8, and R11 to R14 each independently represent any one of hydrogen, an alkyl group having 1 to 6 carbon atoms, a cyclic hydrocarbon group having 3 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, a cyano group, a halogen, a haloalkyl group having 1 to 6 carbon atoms, and a substituted or unsubstituted aromatic hydrocarbon group having 6 to 60 carbon atoms. R9 and R10 each independently represent any one of hydrogen, an alkyl group having 1 to 6 carbon atoms, a cyclic hydrocarbon group having 3 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, a cyano group, a halogen, a haloalkyl group having 1 to 6 carbon atoms, and a substituted or unsubstituted phenyl group. Ar represents a substituted or unsubstituted aryl group having 6 to 13 carbon atoms.

Organic compound, optical device, light-emitting device, light-emitting apparatus, electronic device, and lighting device

A light-emitting device with a long lifetime is provided. A light-emitting device with high reliability is provided. The light-emitting device includes a first electrode, a first light-emitting layer, a first layer, a second layer, a third layer, a second light-emitting layer, and a second electrode stacked in this order. The first layer contains a first organic compound and a first substance. The second layer contains a second organic compound. The third layer contains a second substance. The first organic compound is an electron-transport material. The first substance is a metallic salt, a metal oxide, or an organometallic salt. The second organic compound is an electron-transport material. The second substance is an electron-injection material. The second layer has a lower concentration of the first substance than the first layer.

Light-emitting device, light-emitting apparatus, light-emitting module, electronic device, and lighting device

A novel light-emitting device is provided. A light-emitting device with high emission efficiency is provided. A light-emitting device with a favorable lifetime is provided. A light-emitting device with low driving voltage is provided. A light-emitting device with favorable display quality is provided. A light-emitting device that includes an anode, a cathode, and an EL layer positioned between the anode and the cathode, in which the EL layer includes a hole-injection layer, a light-emitting layer, and an electron-transport layer; in which the electron-transport layer contains an electron-transport material and an alkali metal, an alkaline earth metal, a compound of an alkali metal or an alkaline earth metal, or a complex thereof; and in which the resistivity of the hole-injection layer is within a certain range, is provided.

Light-emitting device, light-emitting apparatus, electronic device, and lighting device

A novel display panel that is highly convenient or reliable is provided. The display panel includes a first pixel; the first pixel includes a first display element, a first color conversion layer, and a first absorption layer; the first display element emits first light; the first absorption layer overlaps with the first display element; and the first absorption layer absorbs the first light. Furthermore, the first color conversion layer is sandwiched between the first display element and the first absorption layer; the first color conversion layer converts the first light into second light; and the second light has a spectrum including a high proportion of light with a long wavelength compared with the first light.

Display panel, display device, input/output device, and data processing device

A light-emitting device including an EL layer including a hole-injection layer, a light-emitting layer, and an electron-transport layer from an anode side is provided. The hole-injection layer includes a first substance and a second substance. The light-emitting layer includes a third substance and a fourth substance. The electron-transport layer includes a first electron-transport layer and a second electron-transport layer. The first electron-transport layer includes a fifth substance. A first LUMO level of the fifth substance is lower than a second LUMO level of the fourth substance and a difference between the first LUMO level and the second LUMO level is greater than or equal to 0.15 eV and less than or equal to 0.40 eV.

A novel light-emitting device is provided. A light-emitting device with high emission efficiency is provided. A light-emitting device with a long lifetime is provided. A light-emitting device with low driving voltage is provided. The light-emitting device includes an anode, a cathode, and an EL layer between the anode and the cathode. The EL layer includes a hole-injection layer, a light-emitting layer, and an electron-transport layer. The hole-injection layer is positioned between the anode and the light-emitting layer. The electron-transport layer is positioned between the light-emitting layer and the cathode. The hole-injection layer contains a first substance and a second substance. The first substance is an organic compound which has a hole-transport property and a HOMO level higher than or equal to −5.7 eV and lower than or equal to −5.4 eV. The second substance exhibits an electron-accepting property with respect to the first substance. The electron-transport layer contains a material whose resistance decreases with current flowing therethrough.

A quinoxaline derivative that is a novel organic compound is provided. A quinoxaline derivative represented by General Formula (G1) has a structure in which a quinoxaline skeleton is bonded to the 9-position of an anthracene skeleton, the 10-position of the anthracene skeleton is bonded to a heteroaromatic ring, and the 3-position of the heteroaromatic ring is nitrogen. In General Formula (G1) shown above, a and b each independently represent a substituted or unsubstituted arylene group having 6 to 13 carbon atoms in a ring. In addition, m and n are each independently 0, 1, or 2.

Organic compound, light-emitting device, light-emitting apparatus, electronic device, and lighting device

An object is to provide a highly reliable display unit having a function of sensing light. The display unit includes a light-receiving device and a light-emitting device. The light-receiving device includes an active layer between a pair of electrodes. The light-emitting device includes a hole-injection layer, a light-emitting layer, and an electron-transport layer between a pair of electrodes. The light-receiving device and the light-emitting device share one of the electrodes, and may further share another common layer between the pair of electrodes. The hole-injection layer is in contact with an anode and contains a first compound and a second compound. The electron-transport property of the electron-transport layer is low; hence, the light-emitting layer is less likely to have excess electrons. Here, the first compound is the material having a property of accepting electrons from the second compound.

Display unit, display module, and electronic device

Growing community of inventors

Kanagawa, Japan

Tsunenori Suzuki