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1
US2021111228A1
DISPLAY DEVICE, METHOD FOR MANUFACTURING DISPLAY DEVICE, AND ELECTRONIC APPARATUS
Publication/Patent Number: US2021111228A1 Publication Date: 2021-04-15 Application Number: 17/044,039 Filing Date: 2019-05-07 Inventor: Ichikawa, Tomoyoshi   Assignee: Sony Semiconductor Solutions Corporation   IPC: H01L27/32 Abstract: In a display device, a reflection film and a semi-transmissive reflection film are disposed at a distance from each other, the distance differing depending on an emission color of a pixel, an organic layer and a cathode electrode being transparent are stacked between the reflection film and the semi-transmissive reflection film, the organic layer including a light emission layer, the semi-transmissive reflection film is formed on the cathode electrode, and the cathode electrode is formed to have a film thickness that differs depending on the emission color.
2
US10886496B2
Display unit, method of manufacturing display unit, and electronic apparatus
Publication/Patent Number: US10886496B2 Publication Date: 2021-01-05 Application Number: 15/925,052 Filing Date: 2018-03-19 Inventor: Ichikawa, Tomoyoshi   Assignee: Sony Corporation   IPC: H01L51/52 Abstract: A display unit includes: an organic light emitting element including a first electrode, an organic layer, and a second electrode in order, the organic layer including a conductive layer; and an auxiliary electrode configured to be electrically connected to the second electrode via the conductive layer in the organic layer.
3
US2021036262A1
ORGANIC ELECTRO-LUMINESCENCE DEVICE, AND METHOD OF MANUFACTURING ORGANIC ELECTRO-LUMINESCENCE DEVICE
Publication/Patent Number: US2021036262A1 Publication Date: 2021-02-04 Application Number: 16/906,068 Filing Date: 2020-06-19 Inventor: Ichikawa, Tomoyoshi   Assignee: Sony Corporation   IPC: H01L51/52 Abstract: [Object] To provide an organic electro-luminescence device in which occurrence of failures such as local abnormal light emission and current leakage is suppressed. [Solution] An organic electro-luminescence device including: a recessed structure in which a first electrode is provided at a bottom part and a first member serves as a sidewall; a second electrode configured to cover an entire surface of the recessed structure; and an organic light emitting layer containing an evaporation material and sandwiched by the second electrode and the recessed structure. In the organic light emitting layer, a film thickness of a layer containing a leaky material is non-uniform at the bottom part of the recessed structure, and an entire film thickness of the organic light emitting layer is generally uniform at the bottom part of the recessed structure.
4
US2021111235A1
DISPLAY DEVICE, METHOD FOR MANUFACTURING DISPLAY DEVICE, AND ELECTRONIC APPARATUS
Publication/Patent Number: US2021111235A1 Publication Date: 2021-04-15 Application Number: 17/052,994 Filing Date: 2019-04-23 Inventor: Ichikawa, Tomoyoshi   Aoyagi, Kenichi   Sakairi, Takashi   Assignee: Sony Semiconductor Solutions Corporation   IPC: H01L27/32 Abstract: Provided is a display device in which more than one pixel is arranged in a two-dimensional matrix on a circuit board, the pixel including a light emission unit including a first electrode, an organic layer, and a second electrode that are stacked, in which the first electrode is disposed for each light emission unit, and a partition is formed between the first electrode and an adjacent first electrode, the organic layer and the second electrode are stacked on an entire surface including the first electrode and the partition, the first electrode is formed on an interlayer insulation film, and a reflection film is formed below the first electrode, the reflection film including a light reflecting surface disposed to be flush with a boundary plane on which different insulation materials are in contact with each other in the interlayer insulation film.
5
US2021074954A1
DISPLAY ELEMENT AND ELECTRONIC DEVICE
Publication/Patent Number: US2021074954A1 Publication Date: 2021-03-11 Application Number: 16/955,917 Filing Date: 2018-12-21 Inventor: Sekine, Masaaki   Sakairi, Takashi   Ohchi, Tomokazu   Ichikawa, Tomoyoshi   Assignee: Sony Semiconductor Solutions Corporation   IPC: H01L51/52 Abstract: There is provided a display element, including: a display region including pixels arranged in a two-dimensional form, each of the pixels including a plurality of sub pixels. In each pixel, a height of a light reflecting portion with respect to a light emitting portion is adjusted for each sub pixel.
6
US10727448B2
Organic electro-luminescence device, and method of manufacturing organic electro-luminescence device
Publication/Patent Number: US10727448B2 Publication Date: 2020-07-28 Application Number: 16/077,178 Filing Date: 2017-01-20 Inventor: Ichikawa, Tomoyoshi   Assignee: Sony Corporation   IPC: H01L51/00 Abstract: [Object] To provide an organic electro-luminescence device in which occurrence of failures such as local abnormal light emission and current leakage is suppressed. [Solution] An organic electro-luminescence device including: a recessed structure in which a first electrode is provided at a bottom part and a first member serves as a sidewall; a second electrode configured to cover an entire surface of the recessed structure; and an organic light emitting layer containing an evaporation material and sandwiched by the second electrode and the recessed structure. In the organic light emitting layer, a film thickness of a layer containing a leaky material is non-uniform at the bottom part of the recessed structure, and an entire film thickness of the organic light emitting layer is generally uniform at the bottom part of the recessed structure.
7
EP3732739A1
DISPLAY ELEMENT AND ELECTRONIC DEVICE
Publication/Patent Number: EP3732739A1 Publication Date: 2020-11-04 Application Number: 18834078.0 Filing Date: 2018-12-21 Inventor: Sekine, Masaaki   Sakairi, Takashi   Ohchi, Tomokazu   Ichikawa, Tomoyoshi   Assignee: Sony Semiconductor Solutions Corporation   IPC: H01L51/52
8
KR102069716B1
DISPLAY UNIT
Publication/Patent Number: KR102069716B1 Publication Date: 2020-01-23 Application Number: 20190093340 Filing Date: 2019-07-31 Inventor: Hasegawa, Eiji   Ichikawa, Tomoyoshi   Gondo, Shoichi   Uesugi, Masanao   Yamada, Jiro   Makita, Atsuya   Yokoyama, Seiichi   Yamashita, Junichi   Assignee: SONY CORPORATION   IPC: H01L51/50 Abstract: A display unit includes a plurality of organic EL elements and insulating films provided in areas between the organic EL elements on a substrate. The insulating films include grooves positioned between organic EL elements adjacent to each other. The display unit may suppress a leakage of a driving current among the adjacent organic EL elements.
9
KR20200009108A
DISPLAY UNIT
Publication/Patent Number: KR20200009108A Publication Date: 2020-01-29 Application Number: 20200006531 Filing Date: 2020-01-17 Inventor: Hasegawa, Eiji   Ichikawa, Tomoyoshi   Gondo, Shoichi   Uesugi, Masanao   Yamada, Jiro   Makita, Atsuya   Yokoyama, Seiichi   Yamashita, Junichi   Assignee: SONY CORPORATION   IPC: H01L51/52 Abstract: 표시 장치는, 기판상에, 복수의 유기 EL 소자와, 복수의 유기 EL 소자 사이의 소자간 영역에 제공된 절연막을 포함하며, 절연막은 서로 인접하는 유기 EL 소자들 사이의 위치에 그루브(groove)를 포함한다.
10
US2019067646A1
ORGANIC ELECTRO-LUMINESCENCE DEVICE, AND METHOD OF MANUFACTURING ORGANIC ELECTRO-LUMINESCENCE DEVICE
Publication/Patent Number: US2019067646A1 Publication Date: 2019-02-28 Application Number: 16/077,178 Filing Date: 2017-01-20 Inventor: Ichikawa, Tomoyoshi   Assignee: Sony Corporation   IPC: H01L51/52 Abstract: [Object] To provide an organic electro-luminescence device in which occurrence of failures such as local abnormal light emission and current leakage is suppressed. [Solution] An organic electro-luminescence device including: a recessed structure in which a first electrode is provided at a bottom part and a first member serves as a sidewall; a second electrode configured to cover an entire surface of the recessed structure; and an organic light emitting layer containing an evaporation material and sandwiched by the second electrode and the recessed structure. In the organic light emitting layer, a film thickness of a layer containing a leaky material is non-uniform at the bottom part of the recessed structure, and an entire film thickness of the organic light emitting layer is generally uniform at the bottom part of the recessed structure.
11
US201967646A1
ORGANIC ELECTRO-LUMINESCENCE DEVICE, AND METHOD OF MANUFACTURING ORGANIC ELECTRO-LUMINESCENCE DEVICE
Publication/Patent Number: US201967646A1 Publication Date: 2019-02-28 Application Number: 20/171,607 Filing Date: 2017-01-20 Inventor: Ichikawa, Tomoyoshi   Assignee: Sony Corporation   IPC: H01L51/52 Abstract: [Solution] An organic electro-luminescence device including: a recessed structure in which a first electrode is provided at a bottom part and a first member serves as a sidewall; a second electrode configured to cover an entire surface of the recessed structure; and an organic light emitting layer containing an evaporation material and sandwiched by the second electrode and the recessed structure. In the organic light emitting layer, a film thickness of a layer containing a leaky material is non-uniform at the bottom part of the recessed structure, and an entire film thickness of the organic light emitting layer is generally uniform at the bottom part of the recessed structure.
12
WO2019220948A1
DISPLAY DEVICE, DISPLAY DEVICE MANUFACTURING METHOD, AND ELECTRONIC APPARATUS
Publication/Patent Number: WO2019220948A1 Publication Date: 2019-11-21 Application Number: 2019018217 Filing Date: 2019-05-07 Inventor: Ichikawa, Tomoyoshi   Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION   IPC: H05B33/24 Abstract: In this display device, a reflective film and a semi-transmissive reflective film are disposed such that the distance therebetween varies depending on the light emission color of a pixel. An organic layer including a light emitting layer, and a transparent cathode electrode are layered between the reflective film and the semi-transmissive reflective film. The semi-transmissive reflective film is formed on the cathode electrode. The cathode electrode is formed so as to have a film thickness that varies depending on the light emission color.
13
WO2019172121A1
LIGHT EMITTING ELEMENT UNIT
Publication/Patent Number: WO2019172121A1 Publication Date: 2019-09-12 Application Number: 2019008109 Filing Date: 2019-03-01 Inventor: Ichikawa, Tomoyoshi   Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION   IPC: H05B33/28 Abstract: This light emitting element unit is configured from three light emitting elements. In a first light emitting element 10a, a 1a-th electrode 21a, a first organic layer 23a comprising a first light emitting layer, a 2a-th electrode 22a, a second organic layer 23b comprising a second light emitting layer, and a third organic layer 23c comprising a third light emitting layer are stacked. In a second light emitting element 10b, the first organic layer 23a, a 1b-th electrode 21b, the second organic layer 23b, a 2b-th electrode 22b, and the third organic layer 23c are stacked. In a third light emitting element 10c, the first organic layer 23a, the second organic layer 23b, a 1c-th electrode 21c, the third organic layer 23c, and a 2c-th electrode 22c are stacked.
14
US2019288239A1
DISPLAY DEVICE, METHOD OF MANUFACTURING DISPLAY DEVICE, AND ELECTRONIC DEVICE
Publication/Patent Number: US2019288239A1 Publication Date: 2019-09-19 Application Number: 16/432,152 Filing Date: 2019-06-05 Inventor: Ichikawa, Tomoyoshi   Fujimaki, Hiroshi   Assignee: Sony Corporation   IPC: H01L51/52 Abstract: A display device according to the present disclosure includes a first electrode, an inorganic hole injecting and transporting layer which is formed of an inorganic material and is formed on the first electrode, at least two light emitting units including a first organic light emitting unit and a second organic light emitting unit having different luminescent colors which are formed on the inorganic hole injecting and transporting layer, an electron transport layer which is formed on the at least two organic light emitting units, and a second electrode which is formed on the electron transport layer. Furthermore, a light emitting layer of the first organic light emitting unit is formed by laminating a light emitting layer of a first luminescent color and a light emitting layer of a second luminescent color, and a light emitting layer of the second organic light emitting unit is formed of the light emitting layer of the second luminescent color.
15
US10312471B2
Method of manufacturing display device, display device, and electronic device
Publication/Patent Number: US10312471B2 Publication Date: 2019-06-04 Application Number: 15/561,705 Filing Date: 2016-03-04 Inventor: Fujimaki, Hiroshi   Ichikawa, Tomoyoshi   Assignee: Sony Corporation   IPC: H01L51/52 Abstract: A method of manufacturing a display device including first electrodes provided for respective pixels, an insulating layer having openings respectively opposed to the first electrodes, an organic layer including a light emitting layer common to all the pixels, and a second electrode formed over an entire surface of the organic layer laminated on a first substrate, includes a step of forming an auxiliary wiring made of a metallic material layer by irradiating the metallic material layer with energy rays from a side of the metallic material layer and selectively removing the metallic material layer by energy absorbed by a part corresponding to the pixel after the metallic material layer has been formed on an entire surface of the second electrode.
16
JP2019114484A
DISPLAY ELEMENT AND ELECTRONIC DEVICE
Publication/Patent Number: JP2019114484A Publication Date: 2019-07-11 Application Number: 2017248697 Filing Date: 2017-12-26 Inventor: Daichi, Tomokazu   Sekine, Masaaki   Sakairi, Taku   Ichikawa, Tomoyoshi   Assignee: SONY SEMICONDUCTOR SOLUTIONS CORP   IPC: H01L51/50 Abstract: To make it possible to improve the brightness of a pixel.SOLUTION: By having a display area in which pixels formed of a plurality of sub-pixels are two-dimensionally arranged and providing a display element in which a height of a light reflecting portion with respect to a light emitting portion is adjusted for each sub pixel, brightness of the pixels can be improved. The present technology can be applied to, for example, self-luminous display elements such as organic EL display elements.SELECTED DRAWING: Figure 5
17
WO2019216198A1
DISPLAY APPARATUS, DISPLAY APPARATUS MANUFACTURING METHOD, AND ELECTRONIC DEVICE
Publication/Patent Number: WO2019216198A1 Publication Date: 2019-11-14 Application Number: 2019017184 Filing Date: 2019-04-23 Inventor: Aoyagi, Kenichi   Sakairi, Takashi   Ichikawa, Tomoyoshi   Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION   IPC: H05B33/02 Abstract: In this display apparatus, pixels each having a light-emitting part obtained by lamination of a first electrode, an organic layer, a second electrode are formed by arrangement in a two-dimensional matrix state on a circuit board. The first electrode is provided for each light-emitting part, and a separation wall part is formed between the first electrodes adjacent to each other. The organic layer and the second electrode are laminated on the entire surface including a surface of the first electrode and a surface of the separation wall part. The first electrode is formed on an interlayer insulation film. On the lower side of the first electrode, a reflection film is formed so as to have a light-reflecting surface provided flush with a boundary surface at which different insulation materials are in contact in the interlayer insulation film.
18
WO2019131487A1
DISPLAY ELEMENT AND ELECTRONIC DEVICE
Publication/Patent Number: WO2019131487A1 Publication Date: 2019-07-04 Application Number: 2018047187 Filing Date: 2018-12-21 Inventor: Sakairi, Takashi   Ohchi, Tomokazu   Ichikawa, Tomoyoshi   Sekine, Masaaki   Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION   IPC: H01L51/52 Abstract: There is provided a display element, including: a display region including pixels (10) arranged in a two-dimensional form, each of the pixels including a plurality of sub pixels (100R, 100W, 100G, 100B). In each pixel, a height of a light reflecting portion (112) with respect to a light emitting portion is adjusted for each sub pixel (e.g. 112R and 112W or 112G and 112B).
19
KR102008102B1
DISPLAY UNIT AND METHOD OF MANUFACTURING THE SAME
Publication/Patent Number: KR102008102B1 Publication Date: 2019-08-06 Application Number: 20180102197 Filing Date: 2018-08-29 Inventor: Hasegawa, Eiji   Ichikawa, Tomoyoshi   Gondo, Shoichi   Uesugi, Masanao   Yamada, Jiro   Makita, Atsuya   Yokoyama, Seiichi   Yamashita, Junichi   Assignee: SONY CORPORATION   IPC: H01L51/52 Abstract: A display device includes, on a substrate, a plurality of organic EL elements and an insulation film provided in a region between the plurality of organic EL elements. The insulation film includes a groove in a position between the adjacent organic EL elements. Accordingly, the present invention can prevent a driving current leakage between the adjacent organic EL elements.
20
KR20190092364A
DISPLAY UNIT
Publication/Patent Number: KR20190092364A Publication Date: 2019-08-07 Application Number: 20190093340 Filing Date: 2019-07-31 Inventor: Hasegawa, Eiji   Ichikawa, Tomoyoshi   Gondo, Shoichi   Uesugi, Masanao   Yamada, Jiro   Makita, Atsuya   Yokoyama, Seiichi   Yamashita, Junichi   Assignee: SONY CORPORATION   IPC: H01L51/52 Abstract: A display unit includes a plurality of organic EL elements and insulating films provided in areas between the organic EL elements on a substrate. The insulating films include grooves positioned between organic EL elements adjacent to each other. The display unit may suppress a leakage of a driving current among the adjacent organic EL elements.
Total 3 pages