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:
Nov. 03, 2026
Filed:
May. 25, 2022
Semiconductor Energy Laboratory Co., Ltd., Atsugi, JP;
Shunpei Yamazaki, Tokyo, JP;
Takayuki Ikeda, Atsugi, JP;
Satoshi Seo, Sagamihara, JP;
Sachiko Kawakami, Atsugi, JP;
Daiki Nakamura, Atsugi, JP;
Semiconductor Energy Laboratory Co., Ltd., Atsugi, JP;
Abstract
A display device with a high level of immersion or realistic sensation is provided. The display device includes a display portion capable of full-color display, a communication portion having a wireless communication function, and a wearing portion having a function of being worn on a head. The display portion includes a subpixel including a light-emitting device and a coloring layer transmitting blue light. The light-emitting device contains a first light-emitting material emitting blue light and a second light-emitting material emitting light having a longer wavelength than blue light. The light-emitting device includes a first light-emitting unit, a charge-generation layer, and a second light-emitting unit that are stacked in this order. In an emission spectrum obtained with the display portion performing blue display at low luminance, when the intensity of a first emission peak at a wavelength higher than or equal to 400 nm and lower than 500 nm is regarded as 1, the intensity of a second emission peak at a wavelength higher than or equal to 500 nm and lower than or equal to 700 nm in the emission spectrum is lower than or equal to 0.5.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile