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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.:

US 12167660 B1

PDFFull Text
Date of Patent:
Dec. 10, 2024

Filed:

Feb. 17, 2023

Display device, display module, and electronic device including semi-transmissive layer

Applicant:

Semiconductor Energy Laboratory Co., Ltd., Atsugi, JP;

Inventors:

Hisao Ikeda, Kanagawa, JP;

Kensuke Yoshizumi, Kanagawa, JP;

Tomoya Aoyama, Kanagawa, JP;

Assignee:

Semiconductor Energy Laboratory Co., Ltd., Atsugi, JP;

Attorney:

Fish & Richardson P.C.

Primary Examiner:

Ida M Soward

Int. Cl.
CPC ...
H10K 50/84 (2023.01); H10K 50/844 (2023.01); H10K 50/85 (2023.01); H10K 50/852 (2023.01); H10K 59/30 (2023.01); G02F 1/1335 (2006.01); G09G 3/3283 (2016.01); G09G 3/3291 (2016.01); H01L 27/146 (2006.01); H10K 50/80 (2023.01); H10K 50/842 (2023.01); H10K 59/12 (2023.01); H10K 59/121 (2023.01); H10K 59/123 (2023.01); H10K 59/124 (2023.01); H10K 59/131 (2023.01); H10K 59/35 (2023.01); H10K 59/38 (2023.01); H10K 59/40 (2023.01); H10K 102/00 (2023.01);
U.S. Cl.
CPC ...
H10K 59/30 (2023.02); H10K 50/844 (2023.02); H10K 50/852 (2023.02); G02F 1/133528 (2013.01); G09G 3/3283 (2013.01); G09G 3/3291 (2013.01); G09G 2300/0408 (2013.01); G09G 2300/0804 (2013.01); H01L 27/14678 (2013.01); H10K 50/841 (2023.02); H10K 50/8426 (2023.02); H10K 50/868 (2023.02); H10K 59/12 (2023.02); H10K 59/1216 (2023.02); H10K 59/123 (2023.02); H10K 59/124 (2023.02); H10K 59/131 (2023.02); H10K 59/1315 (2023.02); H10K 59/35 (2023.02); H10K 59/351 (2023.02); H10K 59/38 (2023.02); H10K 59/40 (2023.02); H10K 2102/00 (2023.02);
Abstract

A display device which exhibits light with high color purity is provided. A display device with low power consumption is provided. An embodiment is a display device which includes a first pixel electrode, a second pixel electrode, a light-emitting layer, a common electrode, a first protective layer, and a semi-transmissive layer. The light-emitting layer includes a first region positioned over the first pixel electrode and a second region positioned over the second pixel electrode. The common electrode is positioned over the light-emitting layer. The first protective layer is positioned over the common electrode. The semi-transmissive layer is positioned over the first protective layer. Reflectivity with respect to visible light of the semi-transmissive layer is higher than reflectivity with respect to visible light of the common electrode. The semi-transmissive layer does not overlap with the first region and overlaps with the second region. For example, the semi-transmissive layer may include an opening in a position overlapping with the first region.

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