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Light-emitting device, electronic device, and lighting device

專利號
US11800734B2
公開日期
2023-10-24
申請人
Semiconductor Energy Laboratory Co., Ltd.
發(fā)明人
Shunpei Yamazaki; Takeyoshi Watabe; Tomohiro Kubota; Airi Ueda; Satoshi Seo; Nobuharu Ohsawa; Yuko Kubota
IPC分類
H01L51/50; H10K50/115; H10K50/16; H10K50/17; H10K85/60
技術(shù)領(lǐng)域
emitting,light,layer,skeleton,phenyl,in,group,oxide,yl,9h
地域： Kanagawa-ken

摘要

A light-emitting apparatus with low power consumption is provided. A light-emitting apparatus including a first light-emitting device and a first color conversion layer. The first light-emitting device includes an anode, a cathode, and an EL layer positioned between the anode and the cathode. The EL layer includes a layer including a material with a refractive index lower than or equal to 1.75 at 467 nm. The first color conversion layer includes a first substance capable of emission by absorbing light. Light emitted from the first light-emitting device enters the first color conversion layer.

說明書

A display device incorporating the light-emitting apparatus of one embodiment of the present invention is provided in the display region 5202 in a pillar portion. The display region 5202 can compensate for the view hindered by the pillar by displaying an image taken by an imaging unit provided in the car body. Similarly, the display region 5203 provided in the dashboard portion can compensate for the view hindered by the car body by displaying an image taken by an imaging unit provided on the outside of the automobile. Thus, blind areas can be eliminated to enhance the safety. Images that compensate for the areas which a driver cannot see enable the driver to ensure safety easily and comfortably.

The display region 5203 can also provide a variety of kinds of information such as navigation data, speed, and the number of revolutions. The content or layout of the display can be changed freely by a user as appropriate. Note that such information can also be displayed on the display regions 5200 to 5203. The display regions 5200 to 5203 can also be used as lighting devices.

FIGS. 13A and 13B illustrate a foldable portable information terminal 5150. The foldable portable information terminal 5150 includes a housing 5151, a display region 5152, and a bend portion 5153. FIG. 13A illustrates the portable information terminal 5150 that is opened. FIG. 13B illustrates the portable information terminal 5150 that is folded. Despite its large display region 5152, the portable information terminal 5150 is compact in size and has excellent portability when folded.

權(quán)利要求

1
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