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.

Date of Patent:
Apr. 09, 2019

Filed:

Jun. 16, 2017
Applicant:

Semiconductor Energy Laboratory Co., Ltd., Kanagawa-ken, JP;

Inventors:

Shunpei Yamazaki, Tokyo, JP;

Daisuke Kubota, Kanagawa, JP;

Yusuke Kubota, Osaka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1335 (2006.01); H01L 27/32 (2006.01); G02F 1/1362 (2006.01); G02F 1/1368 (2006.01); G02F 1/1333 (2006.01); H01L 27/12 (2006.01); H01L 29/786 (2006.01);
U.S. Cl.
CPC ...
H01L 27/3232 (2013.01); G02F 1/1368 (2013.01); G02F 1/133553 (2013.01); G02F 1/136286 (2013.01); H01L 27/3262 (2013.01); G02F 2001/13685 (2013.01); G02F 2001/133354 (2013.01); G02F 2001/133565 (2013.01); G02F 2201/44 (2013.01); G02F 2201/52 (2013.01); G02F 2203/02 (2013.01); H01L 27/1225 (2013.01); H01L 29/7869 (2013.01); H01L 2227/323 (2013.01);
Abstract

A display device with high visibility regardless of the ambient brightness is provided. The display device includes a first display element, a second display element, a first transistor, and a second transistor. The first display element has a function of reflecting visible light. The second display element has a function of emitting visible light. The first transistor has a function of controlling the driving of the first display element. The second transistor has a function of controlling the driving of the second display element. The first transistor is positioned closer to a display surface side of the display device than the first display element is. The first display element is positioned closer to the display surface side of the display device than the second display element and the second transistor are.


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