公开(公告)号：US11610918B2

公开(公告)日：2023-03-21

申请号：US16704462

申请日：2019-12-05

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Kengo Akimoto ,  Shigeki Komori ,  Hideki Uochi ,  Rihito Wada ,  Yoko Chiba

IPC: H01L27/12 ,  H01L29/417 ,  G02F1/1339 ,  G02F1/1345 ,  H01L29/786 ,  H01L29/66 ,  H01L27/32 ,  H01L29/04 ,  H01L29/24 ,  H01L51/52

Abstract: A display device includes a pixel portion in which a pixel electrode layer is arranged in a matrix, and an inverted staggered thin film transistor having a combination of at least two kinds of oxide semiconductor layers with different amounts of oxygen is provided corresponding to the pixel electrode layer. In the periphery of the pixel portion in this display device, a pad portion is provided to be electrically connected to a common electrode layer formed on a counter substrate through a conductive layer made of the same material as the pixel electrode layer. One objection of our invention to prevent a defect due to separation of a thin film in various kinds of display devices is realized, by providing a structure suitable for a pad portion provided in a display panel.

公开(公告)号：US10559599B2

公开(公告)日：2020-02-11

申请号：US16014367

申请日：2018-06-21

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Kengo Akimoto ,  Shigeki Komori ,  Hideki Uochi ,  Rihito Wada ,  Yoko Chiba

IPC: H01L27/12 ,  G02F1/1339 ,  G02F1/1345 ,  H01L29/417 ,  H01L29/786 ,  H01L29/66 ,  H01L27/32 ,  H01L29/04 ,  H01L29/24 ,  H01L51/52

Abstract: A display device includes a pixel portion in which a pixel electrode layer is arranged in a matrix, and an inverted staggered thin film transistor having a combination of at least two kinds of oxide semiconductor layers with different amounts of oxygen is provided corresponding to the pixel electrode layer. In the periphery of the pixel portion in this display device, a pad portion is provided to be electrically connected to a common electrode layer formed on a counter substrate through a conductive layer made of the same material as the pixel electrode layer. One objection of our invention to prevent a defect due to separation of a thin film in various kinds of display devices is realized, by providing a structure suitable for a pad portion provided in a display panel.

公开(公告)号：US10529926B2

公开(公告)日：2020-01-07

申请号：US16010861

申请日：2018-06-18

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Takahiro Sato ,  Shunsuke Koshioka ,  Rihito Wada ,  Junko Suzawa

IPC: H01L51/00 ,  H01L27/32 ,  H01L51/52 ,  H01L51/56 ,  H01L27/12 ,  H01L29/786

Abstract: To provide a highly flexible display device excellent in mass-productivity. A display device includes a flexible substrate, an adhesive layer over the substrate, a resin layer over the adhesive layer, an inorganic insulating layer over the resin layer, a transistor over the inorganic insulating layer, and a display element electrically connected to the transistor. The transistor includes an oxide semiconductor in a channel formation region. The resin layer includes sulfur.

公开(公告)号：US10276089B2

公开(公告)日：2019-04-30

申请号：US15632491

申请日：2017-06-26

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Minoru Takahashi ,  Kunio Kimura ,  Rihito Wada

IPC: G09G3/32 ,  G02F1/1333 ,  G09G3/20 ,  G09G3/36 ,  H01L27/32 ,  G09G3/3208

Abstract: An electronic device includes a display portion, an imaging portion, a control portion, an input portion, and a sensor portion. The display portion has a first display element that reflects visible light and a second display element that emits visible light. The display portion has a function of displaying an image using one of or both first light reflected by the first display element and second light emitted from the second display element. The imaging portion takes an image of an object, the control portion controls the display portion and the imaging portion, the input portion inputs a signal for controlling the display portion and the imaging portion to the control portion, and the sensor portion outputs sensing data to the control portion, in consideration of illuminance of external light. Such a display device increases the display quality, or keeps high-quality display regardless of environmental conditions and reduces power consumption.

公开(公告)号：US10003023B2

公开(公告)日：2018-06-19

申请号：US15483618

申请日：2017-04-10

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Takahiro Sato ,  Shunsuke Koshioka ,  Rihito Wada ,  Junko Suzawa

IPC: H01L27/32 ,  H01L51/00 ,  H01L51/52 ,  H01L51/56 ,  H01L29/786

CPC classification number: H01L51/003 ,  H01L27/1218 ,  H01L27/1225 ,  H01L27/1266 ,  H01L27/3258 ,  H01L27/3262 ,  H01L27/3276 ,  H01L29/7869 ,  H01L51/0097 ,  H01L51/5237 ,  H01L51/56 ,  H01L2227/323 ,  H01L2227/326 ,  H01L2251/5338 ,  Y02E10/549 ,  Y02P70/521

Abstract: To provide a highly flexible display device excellent in mass-productivity. A display device includes a flexible substrate, an adhesive layer over the substrate, a resin layer over the adhesive layer, an inorganic insulating layer over the resin layer, a transistor over the inorganic insulating layer, and a display element electrically connected to the transistor. The transistor includes an oxide semiconductor in a channel formation region. The resin layer includes sulfur.

公开(公告)号：US12250855B2

公开(公告)日：2025-03-11

申请号：US17488376

申请日：2021-09-29

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Kengo Akimoto ,  Shigeki Komori ,  Hideki Uochi ,  Rihito Wada ,  Yoko Chiba

IPC: H01L29/786 ,  H01L27/12 ,  H10K59/121 ,  H10K59/131 ,  H10K50/82

Abstract: A display device includes a pixel portion in which a pixel is arranged in a matrix, the pixel including an inverted staggered thin film transistor having a combination of at least two kinds of oxide semiconductor layers with different amounts of oxygen and having a channel protective layer over a semiconductor layer to be a channel formation region overlapping a gate electrode layer and a pixel electrode layer electrically connected to the inverted staggered thin film transistor. In the periphery of the pixel portion in this display device, a pad portion including a conductive layer made of the same material as the pixel electrode layer is provided. In addition, the conductive layer is electrically connected to a common electrode layer formed on a counter substrate.

公开(公告)号：US11139359B2

公开(公告)日：2021-10-05

申请号：US15296270

申请日：2016-10-18

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Kengo Akimoto ,  Shigeki Komori ,  Hideki Uochi ,  Rihito Wada ,  Yoko Chiba

IPC: H01L27/32 ,  H01L29/786 ,  H01L27/12 ,  H01L51/52

Abstract: A display device includes a pixel portion in which a pixel is arranged in a matrix, the pixel including an inverted staggered thin film transistor having a combination of at least two kinds of oxide semiconductor layers with different amounts of oxygen and having a channel protective layer over a semiconductor layer to be a channel formation region overlapping a gate electrode layer and a pixel electrode layer electrically connected to the inverted staggered thin film transistor. In the periphery of the pixel portion in this display device, a pad portion including a conductive layer made of the same material as the pixel electrode layer is provided. In addition, the conductive layer is electrically connected to a common electrode layer formed on a counter substrate.

公开(公告)号：US10032796B2

公开(公告)日：2018-07-24

申请号：US15063737

申请日：2016-03-08

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Kengo Akimoto ,  Shigeki Komori ,  Hideki Uochi ,  Rihito Wada ,  Yoko Chiba

IPC: H01L29/12 ,  H01L27/12 ,  G02F1/1345 ,  H01L29/417 ,  H01L29/786 ,  H01L29/66 ,  H01L29/04 ,  H01L29/24 ,  G02F1/1339 ,  H01L27/32 ,  H01L51/52

CPC classification number: H01L27/1225 ,  G02F1/13392 ,  G02F1/13458 ,  G02F2001/13398 ,  G09G2300/0804 ,  H01L27/124 ,  H01L27/3262 ,  H01L27/3276 ,  H01L29/04 ,  H01L29/24 ,  H01L29/41733 ,  H01L29/66969 ,  H01L29/7869 ,  H01L51/5221

Abstract: A display device includes a pixel portion in which a pixel electrode layer is arranged in a matrix, and an inverted staggered thin film transistor having a combination of at least two kinds of oxide semiconductor layers with different amounts of oxygen is provided corresponding to the pixel electrode layer. In the periphery of the pixel portion in this display device, a pad portion is provided to be electrically connected to a common electrode layer formed on a counter substrate through a conductive layer made of the same material as the pixel electrode layer. One objection of our invention to prevent a defect due to separation of a thin film in various kinds of display devices is realized, by providing a structure suitable for a pad portion provided in a display panel.