公开(公告)号：US20240164145A1

公开(公告)日：2024-05-16

申请号：US18284185

申请日：2021-04-22

Applicant: Sharp Display Technology Corporation

Inventor： Norio MUROFUSHI ,  Tohru SONODA

IPC: H10K59/122 ,  H10K59/12

CPC classification number: H10K59/122 ,  H10K59/1201

Abstract: A display device includes the following: a plurality of first spacers provided at a first pitch that is constant, in a given direction in the display region except where light-emitting elements are provided, the plurality of first spacers having heights that are identical; and n−1 second spacers provided between two of the plurality of first spacers adjacent to each other in the given direction, except where the light-emitting elements are provided, the n−1 second spacers having heights that are smaller than the heights of the plurality of first spacers, where n is a natural number equal to or greater than two. The pitch in the given direction of all spacers including the plurality of first spacers and the n−1 second spacers is a second pitch that is constant, and that is the first pitch divided into n equal parts.

公开(公告)号：US20240431141A1

公开(公告)日：2024-12-26

申请号：US18687957

申请日：2021-11-05

Applicant: Sharp Display Technology Corporation

Inventor： Norio MUROFUSHI ,  Eiji FUJIMOTO ,  Atsushi SHOHJI

IPC: H10K59/121 ,  H10K59/12

Abstract: An organic EL display device includes a resin substrate provided as a base substrate, a TFT layer provided on the resin substrate and in which TFTs are arranged for each subpixel, and
a plurality of photo spacers provided on the TFT layer, in which a recessed portion having a caldera shape that is open upward is formed at a top portion of each photo spacer,
each photo spacer and the recessed portion are formed in a circular shape in a plan view, and a ratio of a diameter of an opening end portion of the recessed portion to a diameter of a base portion of the photo spacer is greater than 0 and lower than 0.8.