发明名称 Display device and method of fabricating the display device
摘要 In an EL element having an anode, an insulating film (bump) formed on the anode, and an EL film and a cathode formed on the insulating film, each of a bottom end portion and a top end portion of the insulating film is formed so as to have a curved surface. The taper angle of a central portion of the insulating film is set within the range from 35° to 70°, thereby preventing the gradient of the film forming surface on which the EL film and the cathode are to be formed from being abruptly changed. On the thus-formed film forming surface, the EL film and the cathode can be formed so as to be uniform in thickness, so that occurrence of discontinuity in each of EL film and the cathode is prevented.
申请公布号 US9142596(B2) 申请公布日期 2015.09.22
申请号 US201314143382 申请日期 2013.12.30
申请人 Semiconductor Energy Laboratory Co., Ltd. 发明人 Yamazaki Shunpei;Suzawa Hideomi;Uehara Ichiro
分类号 H05B33/00;H01L27/32;H01L27/12 主分类号 H05B33/00
代理机构 Husch Blackwell LLP 代理人 Husch Blackwell LLP
主权项 1. An electronic equipment comprising: a housing; and a display device provided with a touch sensor, a pixel portion of the display device comprising: a substrate;a transistor over the substrate;a first insulating film over the transistor and comprising an opening;a first electrode over the first insulating film and electrically connected to the transistor;a second insulating film over the first insulating film, in the opening of the first insulating film, and covering an end portion of the first electrode;a light-emitting layer over the first electrode and the second insulating film; anda second electrode over the light-emitting layer, wherein a side surface of the second insulating film has a sloped surface taper angle that continuously changes, and wherein the housing includes a curved surface in a display surface.
地址 JP