1
Koji Utsugi: Organic thin film electroluminescent device. NEC Corporation, Foley & Lardner, May 5, 1998: US05747930 (91 worldwide citation)

A cathode is formed of an alloy, which includes 0.01 to 5 mol % of scandium and 0.01 to 0.3 mol % of alkali metal. Base of the alloy has a work function greater than or equal to 4 eV and is silver, aluminum, or indium or the alloy thereof. Thickness of the cathode is preferably 1 to 30 nm. Also, as ...


2
Utsugi Koji C O Nec Corporatio: Organic thin film electroluminescent device.. Nippon Electric Co, November 29, 1995: EP0684753-A1 (52 worldwide citation)

A cathode (14) is formed of an alloy, which contains 0.01 to 5 mol% of scandium and 0.01 to 0.3 mol% of alkali metal. Base of the alloy has work function greater than or equal to 4 eV and is silver, aluminum, or indium or the alloy thereof. Thickness of the cathode (14) is preferably 1 to 30 nm. Als ...


3
Koji Utsugi, Takeshi Saitoh, Masashi Tamegai: Method of manufacturing organic thin-film EL device. NEC Corporation, Hutchins Wheeler & Dittmar, September 25, 2001: US06294892 (46 worldwide citation)

In a method of manufacturing an organic thin-film electroluminescent device, a plurality of thin-film luminescent portions are arranged with fine pitches on a substrate. Each of the luminescent portions is formed by organic electroluminescent material or electrode material. A mask pattern is arrange ...


4
Koji Utsugi, Akira Hirano, Eriko Tsuruoka, Naoyasu Ikeda: Organic thin film electroluminescent device. NEC Corporation, Young & Thompson, January 12, 1999: US05858562 (40 worldwide citation)

A hole transport layer in an organic electroluminescent device is made of a material containing at least a ditriphenylaminestyryl derivative expressed by the general formula: ##STR1## where A is selected from the group consisting of substituted and non-substituted alkylidene groups, cycloalkylidene ...


5
Yoshinori Nishikitani, Naoki Kataoka, Nobuyuki Kuroda, Kazuo Matsuura: Organic thin film electroluminescent device. Nippon Oil, Darby & Darby, July 27, 1993: US05231329 (40 worldwide citation)

An organic thin film electroluminescent device is composed of an electron transport layer, a hole transport layer and a transparent electrode. The electron transport layer is constituted of an electron conducting polymer represented by the formula (I) ##STR1## wherein R.sup.1 is a hydrogen atom or a ...


6
Hideaki Iwanaga, Akira Gyoutoku, Shintarou Hara: Organic thin film electroluminescent device having a carbon layer between the hole injection layer and the organic thin film layer. Matsushita Electric Industrial, McDermott Will & Emery, January 20, 1998: US05710484 (7 worldwide citation)

The object of the present invention is to provide an organic thin film EL device that has an improved close adherence of a hole injection electrode to an organic thin film layer and a long life, maintaining uniform luminance and minimized performance deterioration over the lapse of time. The organic ...


7
Hiroshi Tada, Hiroyuki Endoh, Akira Hirano, Koji Utsugi: Green light emitting organic thin film electroluminescent device. NEC Corporation, Young & Thompson, December 7, 1999: US05998046 (3 worldwide citation)

An organic thin film electroluminescent device has at least an organic thin film provided between an anode and a cathode,


8
Hideaki Iwanaga, Akira Gyoutoku, Shintarou Hara: Organic thin film electroluminescent device and its manufacturing method. Matsushita Electric Industrial, McDermott Will & Emery, January 12, 1999: US05857886 (1 worldwide citation)

The object of the present invention is to provide an organic thin film EL device that has an improved close adherence of a hole injection electrode to an organic thin film layer and a long life, maintaining uniform luminance and minimized performance deterioration over the lapse of time. The organic ...


9
Zhiqiang Jiao, Shibo Jiao, Chengyuan Luo: Display apparatus having thin films including nanoparticles. BOE TECHNOLOGY GROUP, Blakely Sokoloff Taylor & Zafman, June 27, 2017: US09691828

The invention provides a display apparatus and a method for manufacturing the same, relates to the field of display technology, and solves the problem of low display luminance due to the existing display apparatus being affected by other film layers. A display apparatus comprises a light emitting un ...


10
Wenyu Ma: OLED device and manufacturing method thereof and display apparatus. BOE TECHNOLOGY GROUP, Ladas & Parry, January 10, 2017: US09543539

An OLED device and a manufacturing method thereof and a display apparatus are provided. The OLED device comprises: a substrate, and a first electrode, an organic material function layer and a second electrode which are sequentially provided on the substrate. The OLED device further comprises an unev ...