Semiconductor Energy Laboratory Co., Ltd.

Nissan Motor Company Limited

Nippon Telegraph and Telephone Corporation

Yasuhiro Niikura

Tetsuji Ishitani

Momoko Kato

Yuko Kawata

Satoshi Seo

Sachiko Kawakami

Tomohiro Tamura

Daisuke Kubota

Tsunenori Suzuki

Ryo Hatsumi

Hiroshi Hamada

Takashi Murasugi

Masaaki Suga

Yoshinobu Tonomura

Makoto Ikenaga

Yukinobu Taniguchi

Tomoya Hirose

Akio Yamashita

Yoshiro Morimoto

Taisuke Kamada

Tokiyoshi Yanai

Akihito Akutsu

Manabu Kobayashi

Akihiko Sano

Atsushi Shimizu

Shusaku Katakura

Hideo Hamada

Noboru Hattori

Yasushi Narita

Takashi Satou

Anna Tada

Toji Takemura

Yoshiaki Hidaka

Koichi Kitamura

Hisaaki Tohjima

Takashi Satoh

A novel optical functional device that is highly convenient, useful, or reliable is provided. The optical functional device includes a light-emitting function, a photoelectric conversion function, a first electrode, a second electrode, and an optical functional layer. The light-emitting function converts electrical energy into first light, the first light has a first emission spectrum, and the first emission spectrum exhibits a maximum peak at a first wavelength. At a second wavelength, the intensity of the first emission spectrum is 80% of the maximum peak. The photoelectric conversion function has a spectral sensitivity characteristic; at a third wavelength, the spectral sensitivity characteristic has a maximum sensitivity within a range of 420 to 720 nm inclusive; and at a fourth wavelength, the sensitivity of the spectral sensitivity characteristic is 80% of the maximum sensitivity. The third wavelength is positioned closer to the second wavelength than to the first wavelength, and the fourth wavelength is positioned closer to the first wavelength than to the third wavelength.

Optical functional device, functional panel, display device, input/output device, and data processing 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

To provide a novel photoelectric conversion device that is highly convenient, useful, or reliable. The photoelectric conversion device includes a first electrode, a second electrode, and a first unit. The first unit is located between the first electrode and the second electrode. The first unit contains a first electron-donating material and a first electron-accepting material. The first electron-donating material is a condensed aromatic compound, and the first electron-accepting material has a perylene skeleton and two or more alkyl groups. The alkyl groups each independently have 1 to 13 carbon atoms.

Photoelectric conversion device and optical functional device

Provided is a novel display device without deterioration of display quality or a novel display device in which flickering due to a reduced refresh rate is suppressed. The display device includes a pixel for displaying a still image at a frame frequency of less than or equal to 1 Hz. The pixel includes a liquid crystal layer. The liquid crystal layer includes a molecule whose dipole moment is greater than or equal to 0 debye and less than or equal to 3 debye. Thus, flickering due to a reduced refresh rate can be suppressed, which leads to an improvement in display quality.

Display device, display module including the display device, and electronic device including the display device or the display module

A novel organic compound that can be used in a variety of liquid crystal devices or a liquid crystal composition containing the novel organic compound is provided. An organic compound represented by General Formula (G1) is provided. A novel liquid crystal composition containing the organic compound is provided. In General Formula (G1), Arand Arseparately represent a substituted or unsubstituted arylene group having 6 to 12 carbon atoms, a substituted or unsubstituted cycloalkylene group having 3 to 12 carbon atoms, or a substituted or unsubstituted cycloalkenylene group having 3 to 12 carbon atoms. In addition, m and n separately represent 0 or 1. Rand Rseparately represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 11 carbon atoms, or a substituted or unsubstituted alkoxy group having 1 to 11 carbon atoms. 

Organic compound, liquid crystal composition, liquid crystal element, and liquid crystal display device

A dioxolane derivative represented by formula (G1) is provided. The explanation of the substituents is given in the specification. The use of the dioxolane derivative enables the production of a liquid crystal composition and a liquid crystal display device including the liquid crystal composition. 

Dioxolane derivative, liquid crystal composition, liquid crystal element, and liquid crystal display device

An organic compound represented by General Formula (G100) is provided. A novel liquid crystal composition containing the organic compound is provided. 

A novel material of a binaphthyl compound represented by General Formula (G1) is provided. Arand Arindependently represent a substituted or unsubstituted arylene group having 6 to 12 carbon atoms, a substituted or unsubstituted cycloalkylene group having 3 to 12 carbon atoms, or a substituted or unsubstituted cycloalkenylene group having 3 to 12 carbon atoms, m represents 1 or 2, and n represents any one of 0 to 2. Rrepresents a substituted or unsubstituted alkylene group having 1 to 12 carbon atoms, or a single bond. Rrepresents hydrogen, a substituted or unsubstituted alkyl group having 1 to 12 carbon atoms, or a substituted or unsubstituted alkoxy group having 1 to 12 carbon atoms. One of Rand Rrepresents a substituent represented by General Formula (G2), and the other represents hydrogen. 

Binaphthyl compound, liquid crystal composition, liquid crystal element, and liquid crystal display device

To provide a novel material for a liquid crystal composition that can be used for various liquid crystal display devices. A novel isosorbide derivative represented by General Formula (G2) is provided. In General Formula (G2), Ar, Ar, Ar, and Areach independently represent a substituted or unsubstituted arylene group having 6 to 12 carbon atoms, a substituted or unsubstituted cycloalkylene group having 3 to 12 carbon atoms, or a substituted or unsubstituted cycloalkenylene group having 4 to 12 carbon atoms; l, k, m, and n each independently represent any of 0 to 3; Rand Reach independently represent oxygen, a single bond, or a substituted or unsubstituted alkylene group having 1 to 12 carbon atoms; and Rand Reach independently represent hydrogen, oxygen, a substituted or unsubstituted alkyl group having 1 to 12 carbon atoms, or a substituted or unsubstituted alkoxy group having 1 to 12 carbon atoms.

Isosorbide derivative, liquid crystal composition, liquid crystal element, and liquid crystal display device

A liquid crystal composition including a dioxolane compound represented by the general formula (G1) as a chiral agent is provided. In the general formula (G1), Rand Rindividually represent any of hydrogen, an alkyl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 20 carbon atoms, an aryl group having 6 to 12 carbon atoms, and an alkyl group having 1 to 20 carbon atoms and having a phenyl group as a substituent; Rand Rmay be bonded to each other to form a ring; Rand Rindividually represent any of hydrogen, an alkyl group having 1 to 6 carbon atoms, and a cycloalkyl group; and Rto Rindividually represent any of hydrogen, an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, and an aryl group having 6 to 12 carbon atoms. 

Liquid crystal composition, liquid crystal element, and liquid crystal display device

A novel material for a liquid crystal composition that can be used for various liquid crystal devices is provided. A novel cyanobiphenyl derivative represented by General Formula (G1) is provided. In General Formula (G1), Rrepresents a single bond or a substituted or unsubstituted alkylene group having 1 to 6 carbon atoms. Note that in General Formula (G1), Rmay have a substituent. Examples of the substituent are fluorine (F), chlorine (Cl), bromine (Br), iodine (I), a cyano group (CN), a trifluoromethylsulfonyl group (SOCF), a trifluoromethyl group (CF), a nitro group (NO), an isothiocyanate group (NCS), and a pentafluorosulfanyl group (SF). 

Cyanobiphenyl derivative, liquid crystal composition, liquid crystal element, and liquid crystal display device

A binaphthyl compound represented by General Formula (G1) is provided. In General Formula (G1), Arrepresents any of an arylene group, a cycloalkylene group, and a cycloalkenylene group, and m is any of 0 to 3; Rrepresents any of hydrogen, an alkyl group, and an alkoxy group; and one of R and Rrepresents a substituent represented by General Formula (G2) and the other thereof represents hydrogen. In General Formula (G2), Arrepresents any of an arylene group, a cycloalkylene group, and a cycloalkenylene group, and k is any of 1 to 3; and Rrepresents any of hydrogen, an alkyl group, and an alkoxy group. 

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Kanagawa, Japan

Yasuhiro Niikura