The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 12, 2016
Filed:
Oct. 24, 2013
Junichi Koezuka, Tochigi, JP;
Yukinori Shima, Tatebayashi, JP;
Yasuharu Hosaka, Tochigi, JP;
Kenichi Okazaki, Tochigi, JP;
Takuya Matsuo, Osaka, JP;
Shigeyasu Mori, Osaka, JP;
Yosuke Kanzaki, Osaka, JP;
Hiroshi Matsukizono, Osaka, JP;
Junichi Koezuka, Tochigi, JP;
Yukinori Shima, Tatebayashi, JP;
Yasuharu Hosaka, Tochigi, JP;
Kenichi Okazaki, Tochigi, JP;
Takuya Matsuo, Osaka, JP;
Shigeyasu Mori, Osaka, JP;
Yosuke Kanzaki, Osaka, JP;
Hiroshi Matsukizono, Osaka, JP;
Semiconductor Energy Laboratory Co., Ltd., Atsugi-shi, Kanagawa-ken, JP;
Sharp Kabushiki Kaisha, Osaka-shi, Osaka, JP;
Abstract
To improve the reliability of a transistor as well as to inhibit fluctuation in electric characteristics. A display device includes a pixel portion and a driver circuit portion outside the pixel portion; the pixel portion includes a pixel transistor, a first insulating film covering the pixel transistor and including an inorganic material, a second insulating film including an organic material over the first insulating film, and a third insulating film including an inorganic material over the second insulating film; and the driver circuit portion includes a driving transistor to supply a signal to the pixel transistor, the first insulating film covering the driving transistor, and the second insulating film over the first insulating film, and further includes a region in which the third insulating film is not formed over the second insulating film or a region in which the second insulating film is not covered with the third insulating film.