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:
Jan. 21, 2025

Filed:

Feb. 21, 2024
Applicant:

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

Inventors:

Hajime Kimura, Kanagawa, JP;

Kengo Akimoto, Kanagawa, JP;

Masashi Tsubuku, Kanagawa, JP;

Toshinari Sasaki, Kanagawa, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/786 (2006.01); G09G 3/36 (2006.01); H01L 27/12 (2006.01);
U.S. Cl.
CPC ...
H01L 29/78693 (2013.01); G09G 3/3648 (2013.01); H01L 27/1225 (2013.01); H01L 29/78618 (2013.01); G09G 2300/0842 (2013.01);
Abstract

A display device including a pixel having a memory. The pixel includes at least a display element, a capacitor, an inverter, and a switch. The switch is controlled with a signal held in the capacitor and a signal output from the inverter so that voltage is supplied to the display element. The inverter and the switch can be constituted by transistors with the same polarity. A semiconductor layer included in the pixel may be formed using a light-transmitting material. Moreover, a gate electrode, a drain electrode, and a capacitor electrode may be formed using a light-transmitting conductive layer. The pixel is formed using a light-transmitting material in such a manner, whereby the display device can be a transmissive display device while including a pixel having a memory.


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