Display Apparatus

Organization Name

semiconductor energy laboratory co., ltd.

Inventor(s)

Yuichi Yanagisawa of Atsugi, Kanagawa (JP)

Daiki Nakamura of Atsugi, Kanagawa (JP)

Hiromi Sawai of Atsugi, Kanagawa (JP)

Display Apparatus

This abstract first appeared for US patent application 20240414997 titled 'Display Apparatus

Original Abstract Submitted

a display apparatus with high display quality is provided. the display apparatus includes a pixel portion and a dummy pixel portion placed outside the pixel portion and not contributing to display; the pixel portion includes a plurality of light-emitting devices; each of the light-emitting devices includes a pixel electrode, a first layer that includes a light-emitting layer, and a common electrode; the first layers of adjacent pixels of a plurality of pixels are separated by a first insulating layer containing an inorganic material and a second insulating layer containing an organic material; the side surface of the first layer includes a region in contact with the first insulating layer; the second insulating layer is over and in contact with the first insulating layer and is placed below the common electrode; the dummy pixel portion includes a plurality of dummy light-emitting devices; each of the dummy light-emitting devices includes a conductive layer and a second layer; the side surface of the second layer includes a region in contact with the first insulating layer; the second insulating layer is over and in contact with the first insulating layer; the conductive layer contains the same material as the pixel electrode; and the second layer contains the same material as the light-emitting layer.