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 35Â° to 70Â°, 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.

Claims

40 · 4 independent · depth 2

40 granted claims

›1.independentAn electronic equipment comprising:na housing; anda display device provided with a touch sensor, a pixel portion of the display device comprising:na s…+10

›2.↳ 1The electronic equipment according to claim 1, wherein the first insulating film is an organic insulating film.d2

›3.↳ 1The electronic equipment according to claim 1, wherein the display device is curved.d2

›4.↳ 1The electronic equipment according to claim 1, wherein the opening of the first insulating film is filled with the second insulating film.d2

›5.↳ 1The electronic equipment according to claim 1, further comprising a wiring electrically connected to the transistor and the first electrode, wherein t…d2

›6.↳ 1The electronic equipment according to claim 1, wherein the substrate is a glass substrate.d2

›7.↳ 1The electronic equipment according to claim 1, wherein the substrate is a plastic substrate.d2

›8.↳ 1The electronic equipment according to claim 1, further comprising a third insulating film between the transistor and the first insulating film, wherei…d2

›9.↳ 1The electronic equipment according to claim 1, wherein the sloped surface taper angle at an end portion of the second insulating film is 0°.d2

›10.↳ 1The electronic equipment according to claim 1, further comprising a drive circuit portion over the substrate, wherein the second insulating film overl…d2

›11.↳ 1The electronic equipment according to claim 1, wherein the electronic equipment is a cellular phone.d2

›12.independentAn electronic equipment comprising:na housing; anda display device provided with a touch sensor, a pixel portion of the display device comprising:na s…+12

›13.↳ 12The electronic equipment according to claim 12, wherein the detection circuit is configured to be used as input means.d2

›14.↳ 12The electronic equipment according to claim 12, wherein the external circuit comprises:na power supply circuit;an external interface port;a central pr…d2

›15.↳ 12The electronic equipment according to claim 12, wherein the first insulating film is an organic insulating film.d2

›16.↳ 12The electronic equipment according to claim 12, wherein the display device is curved.d2

›17.↳ 12The electronic equipment according to claim 12, wherein the opening of the first insulating film is filled with the second insulating film.d2

›18.↳ 12The electronic equipment according to claim 12, further comprising a wiring electrically connected to the transistor and the first electrode, wherein …d2

›19.↳ 12The electronic equipment according to claim 12, wherein the substrate is a glass substrate.d2

›20.↳ 12The electronic equipment according to claim 12, wherein the substrate is a plastic substrate.d2

›21.↳ 12The electronic equipment according to claim 12, further comprising a third insulating film between the transistor and the first insulating film, where…d2

›22.↳ 12The electronic equipment according to claim 12, wherein the sloped surface taper angle at an end portion of the second insulating film is 0°.d2

›23.↳ 12The electronic equipment according to claim 12, further comprising a drive circuit portion over the substrate, wherein the second insulating film over…d2

›24.↳ 12The electronic equipment according to claim 12, wherein the electronic equipment is a cellular phone.d2

›25.independentAn electronic equipment comprising:na housing;a touch sensor; anda pixel portion comprising:na substrate;a transistor over the substrate;a first insul…+7

›26.↳ 25The electronic equipment according to claim 25, further comprising a wiring electrically connected to the transistor and the first electrode, wherein …d2

›27.↳ 25The electronic equipment according to claim 25, wherein the substrate is a glass substrate.d2

›28.↳ 25The electronic equipment according to claim 25, wherein the substrate is a plastic substrate.d2

›29.↳ 25The electronic equipment according to claim 25, further comprising a third insulating film between the transistor and the first insulating film, where…d2

›30.↳ 25The electronic equipment according to claim 25, wherein the sloped surface taper angle at an end portion of the second insulating film is 0°.d2

›31.↳ 25The electronic equipment according to claim 25, further comprising a drive circuit portion over the substrate, wherein the second insulating film over…d2

›32.↳ 25The electronic equipment according to claim 25, wherein the electronic equipment is a cellular phone.d2

›33.independentAn electronic equipment comprising:na housing;a touch sensor; anda pixel portion comprising:na substrate;a transistor over the substrate;a first insul…+7

›34.↳ 33The electronic equipment according to claim 33, further comprising a wiring electrically connected to the transistor and the first electrode, wherein …d2

›35.↳ 33The electronic equipment according to claim 33, wherein the substrate is a glass substrate.d2

›36.↳ 33The electronic equipment according to claim 33, wherein the substrate is a plastic substrate.d2

›37.↳ 33The electronic equipment according to claim 33, further comprising a third insulating film between the transistor and the first insulating film, where…d2

›38.↳ 33The electronic equipment according to claim 33, wherein the sloped surface taper angle at an end portion of the second insulating film is 0°.d2

›39.↳ 33The electronic equipment according to claim 33, further comprising a drive circuit portion over the substrate, wherein the second insulating film over…d2

›40.↳ 33The electronic equipment according to claim 33, wherein the electronic equipment is a cellular phone.d2

Classifications

3 codes

IPC · International Patent Classification

Section H — Electricity

H01L27/32
H05B33/00
H01L27/12

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Pendency

1.7 y

631 days filing → grant

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4 RCE

Examiner

Joseph L Williams

art unit 2889 · TC 2800

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1 priority documents

›Priority documents — 1

Type	Document	Date
related publication	US 20140183576 A1	3 Jul 2014

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