US 12,089,451 B2
Functional panel, display device, input/output device, and data processing device
Daiki Nakamura, Kanagawa (JP); Fumiyasu Seino, Kanagawa (JP); Tomoya Aoyama, Kanagawa (JP); and Takahiro Ishisone, Kanagawa (JP)
Assigned to Semiconductor Energy Laboratory Co., Ltd., Atsugi (JP)
Appl. No. 17/788,438
Filed by SEMICONDUCTOR ENERGY LABORATORY CO., LTD., Atsugi (JP)
PCT Filed Dec. 18, 2020, PCT No. PCT/IB2020/062154
§ 371(c)(1), (2) Date Jun. 23, 2022,
PCT Pub. No. WO2021/130629, PCT Pub. Date Jul. 1, 2021.
Claims priority of application No. 2019-234155 (JP), filed on Dec. 25, 2019; application No. 2020-057252 (JP), filed on Mar. 27, 2020; and application No. 2020-170999 (JP), filed on Oct. 9, 2020.
Prior Publication US 2023/0088427 A1, Mar. 23, 2023
Int. Cl. G09G 5/00 (2006.01); G06F 3/041 (2006.01); G09G 3/3225 (2016.01); H10K 59/122 (2023.01); H01L 23/00 (2006.01); H10K 50/852 (2023.01); H10K 59/30 (2023.01)
CPC H10K 59/122 (2023.02) [G06F 3/0416 (2013.01); G09G 3/3225 (2013.01); G09G 2300/0814 (2013.01); G09G 2300/0852 (2013.01); G09G 2320/0209 (2013.01); H01L 24/32 (2013.01); H01L 2224/32225 (2013.01); H10K 50/852 (2023.02); H10K 59/30 (2023.02)] 18 Claims
OG exemplary drawing
 
1. A functional panel comprising:
a first element comprising a first reflective film;
a second element comprising a second reflective film; and
an insulating film,
wherein the first element further comprises a first electrode, a second electrode, and a layer containing a light-emitting material,
wherein the insulating film is located over a portion of the first reflective film and a portion of the first electrode,
wherein the layer containing the light-emitting material comprises a region interposed between the first electrode and the second electrode,
wherein the first electrode has a light-transmitting property,
wherein the first electrode has a first thickness,
wherein the first electrode is interposed between a region of the first reflective film and the layer containing the light-emitting material,
wherein the first reflective film has a second thickness,
wherein the insulating film comprises a first opening portion,
wherein the first opening portion overlaps with the first electrode,
wherein the insulating film has a first step-like cross-sectional shape,
wherein the first step-like cross-sectional shape surrounds the first opening portion when seen from above,
wherein the first step-like cross-sectional shape comprises a first step,
wherein the second thickness is greater than the first thickness,
wherein the second reflective film has the second thickness, and
wherein the first reflective film comprises a region which extends beyond an end portion of the first electrode.