公开(公告)号：US12272822B2

公开(公告)日：2025-04-08

申请号：US16624319

申请日：2018-06-14

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Masahiro Takahashi ,  Mayumi Mikami ,  Yohei Momma ,  Teruaki Ochiai ,  Jyo Saitou

IPC: H01M4/525 ,  C01G51/66 ,  C01G53/66 ,  H01M4/13915 ,  H01M10/0525 ,  C01G45/1214 ,  C01G51/42 ,  C01G53/44 ,  H01M4/02 ,  H01M4/1315

Abstract: A positive electrode active material has a small difference in a crystal structure between the charged state and the discharged state. For example, the crystal structure and volume of the positive electrode active material, which has a layered rock-salt crystal structure in the discharged state and a pseudo-spinel crystal structure in the charged state at a high voltage of approximately 4.6 V, are less likely to be changed by charging and discharging as compared with those of a known positive electrode active material. In order to form the positive electrode active material having the pseudo-spinel crystal structure in the charged state, it is preferable that a halogen source such as a fluorine and a magnesium source be mixed with particles of a composite oxide containing lithium, a transition metal, and oxygen, which is synthesized in advance, and then the mixture be heated at an appropriate temperature for an appropriate time.

公开(公告)号：US12272698B2

公开(公告)日：2025-04-08

申请号：US18616403

申请日：2024-03-26

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Junichiro Sakata ,  Toshinari Sasaki ,  Miyuki Hosoba

IPC: H01L27/12 ,  H01L21/02 ,  H01L29/24 ,  H01L29/66 ,  H01L29/786

Abstract: An object is to provide a display device which operates stably with use of a transistor having stable electric characteristics. In manufacture of a display device using transistors in which an oxide semiconductor layer is used for a channel formation region, a gate electrode is further provided over at least a transistor which is applied to a driver circuit. In manufacture of a transistor in which an oxide semiconductor layer is used for a channel formation region, the oxide semiconductor layer is subjected to heat treatment so as to be dehydrated or dehydrogenated; thus, impurities such as moisture existing in an interface between the oxide semiconductor layer and the gate insulating layer provided below and in contact with the oxide semiconductor layer and an interface between the oxide semiconductor layer and a protective insulating layer provided on and in contact with the oxide semiconductor layer can be reduced.

公开(公告)号：US12271233B2

公开(公告)日：2025-04-08

申请号：US18136384

申请日：2023-04-19

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Koji Kusunoki ,  Hiroyuki Miyake ,  Kazunori Watanabe

IPC: G06F1/16 ,  G06F3/041 ,  G06F3/044 ,  G06F3/045 ,  G06F3/0488 ,  G06F15/02 ,  H10K59/40 ,  H10K77/10

Abstract: To increase the detection sensitivity of a touch panel, provide a thin touch panel, provide a foldable touch panel, or provide a lightweight touch panel. A display element and a capacitor forming a touch sensor are provided between a pair of substrates. Preferably, a pair of conductive layers forming the capacitor each have an opening. The opening and the display element are provided to overlap each other. A light-blocking layer is provided between a substrate on the display surface side and the pair of conductive layers forming the capacitor.

公开(公告)号：US20250113711A1

公开(公告)日：2025-04-03

申请号：US18978174

申请日：2024-12-12

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Kaoru HATANO ,  Satoshi SEO ,  Shunpei YAMAZAKI

IPC: H10K59/127 ,  H04M1/02 ,  H10K50/84 ,  H10K59/12 ,  H10K59/122 ,  H10K59/124 ,  H10K71/50 ,  H10K77/10 ,  H10K102/00

Abstract: The invention relates to: a light-emitting device which includes a first flexible substrate having a first electrode, a light-emitting layer over the first electrode, and a second electrode with a projecting portion over the light-emitting layer and a second flexible substrate having a semiconductor circuit and a third electrode electrically connected to the semiconductor circuit, in which the projecting portion of the second electrode and the third electrode are electrically connected to each other; a method for manufacturing the light-emitting device; and a cellular phone which includes a housing incorporating the light-emitting device and having a longitudinal direction and a lateral direction, in which the light-emitting device is disposed on a front side and in an upper portion in the longitudinal direction of the housing.

公开(公告)号：US12266398B2

公开(公告)日：2025-04-01

申请号：US17337552

申请日：2021-06-03

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Tomoaki Atsumi ,  Kiyoshi Kato ,  Shuhei Maeda

IPC: G11C11/40 ,  G11C11/4094 ,  H01L29/786 ,  H10B12/00

Abstract: A semiconductor device whose operating speed is increased is provided. The semiconductor device includes a write word line, a read word line, a write bit line, a read bit line, a first wiring, and a memory cell. The memory cell includes three transistors of a single conductivity type and a capacitor. Gates of the three transistors are electrically connected to the write word line, a first terminal of the capacitor, and the read word line, respectively. A second terminal of the capacitor is electrically connected to the read bit line. A source and a drain of one transistor are electrically connected to the write bit line and the gate of another transistor, respectively. Two of the three transistors are electrically connected in series between the read bit line and the first wiring. A channel formation region of each of the three transistors includes, for example, a metal oxide layer.

公开(公告)号：US20250107326A1

公开(公告)日：2025-03-27

申请号：US18971552

申请日：2024-12-06

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Ryo HATSUMI ,  Taisuke KAMADA ,  Daisuke KUBOTA

IPC: H10K50/86 ,  H10K59/13 ,  H10K59/40

Abstract: An object is to provide a display device having a function of emitting visible light and infrared light and an imaging function. Another object is to increase the definition without changing the density of imaging elements while the high resolution of an image displayed on a display device is kept. The display device has a layout in which a light-receiving region of an imaging element is provided between light-emitting regions of a plurality of light-emitting elements over one substrate. In the imaging function of the display device, as a means for increasing the definition of a captured image, the definition is increased without changing the density of imaging elements by capturing an image by time division.

公开(公告)号：US20250107239A1

公开(公告)日：2025-03-27

申请号：US18974962

申请日：2024-12-10

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei YAMAZAKI

IPC: H01L27/12 ,  H01L21/02 ,  H01L27/146 ,  H01L29/04 ,  H01L29/08 ,  H01L29/24 ,  H01L29/417 ,  H01L29/66 ,  H01L29/786 ,  H10B41/70

Abstract: A region containing a high proportion of crystal components and a region containing a high proportion of amorphous components are formed separately in one oxide semiconductor film. The region containing a high proportion of crystal components is formed so as to serve as a channel formation region and the other region is formed so as to contain a high proportion of amorphous components. It is preferable that an oxide semiconductor film in which a region containing a high proportion of crystal components and a region containing a high proportion of amorphous components are mixed in a self-aligned manner be formed. To separately form the regions which differ in crystallinity in the oxide semiconductor film, first, an oxide semiconductor film containing a high proportion of crystal components is formed and then process for performing amorphization on part of the oxide semiconductor film is conducted.

公开(公告)号：US20250105277A1

公开(公告)日：2025-03-27

申请号：US18970314

申请日：2024-12-05

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Yohei MOMMA ,  Mayumi MIKAMI ,  Teruaki OCHIAI ,  Kazuhei NARITA ,  Jyo SAITO

IPC: H01M4/525 ,  B60L58/12 ,  H01M4/38 ,  H01M4/58 ,  H01M10/0525 ,  H01M10/42 ,  H05K5/00

Abstract: A positive electrode active material for a lithium ion secondary battery which has a large capacity and a good charge-and-discharge cycle performance is provided. The positive electrode active material includes lithium, cobalt, oxygen, and magnesium, and has a compound represented by a layered rock-salt crystal structure. A space group of the compound is represented by R-3m. The compound is a composite oxide in which magnesium is substituted for a lithium position and a cobalt position. The compound is a particle. The magnesium substituted for a lithium position and a cobalt position exists more in the region from the surface to 5 nm than in the region deeper than 10 nm from the surface. More magnesium is substituted for a lithium position than for a cobalt position.

公开(公告)号：US20250104621A1

公开(公告)日：2025-03-27

申请号：US18971981

申请日：2024-12-06

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Kouhei TOYOTAKA ,  Daiki NAKAMURA

IPC: G09G3/3225 ,  G06F3/01 ,  G06F3/02 ,  G06F3/0354 ,  G06F3/041 ,  G09G3/20 ,  H10K50/86 ,  H10K59/131 ,  H10K59/38 ,  H10K59/40

Abstract: A novel display panel that is highly convenient or reliable is provided. The display panel includes a display region, a first functional layer, and a second functional layer. The display region includes a pixel, and the pixel includes a display element and a pixel circuit. The first functional layer includes the pixel circuit, a scan line, and a first connection portion. The display element is electrically connected to the pixel circuit, and the pixel circuit is electrically connected to the scan line. The second functional layer includes a region overlapping with the first functional layer, the second functional layer includes a driver circuit and a wiring, and the driver circuit is provided so that the pixel circuit is positioned between the driver circuit and the display element. The wiring is electrically connected to the scan line at the first connection portion, and the wiring is electrically connected to the driver circuit.

公开(公告)号：US12259624B2

公开(公告)日：2025-03-25

申请号：US18243987

申请日：2023-09-08

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Atsushi Hirose

IPC: G02F1/1362 ,  G02F1/1343 ,  G02F1/1368 ,  G09G3/36 ,  H01L27/12 ,  H01L29/786 ,  G02F1/136

Abstract: To provide a display device in which parasitic capacitance between wirings can be reduced while preventing increase in wiring resistance. To provide a display device with improved display quality. To provide a display device with low power consumption. A pixel of the liquid crystal display device includes a signal line, a scan line intersecting with the signal line, a first electrode projected from the signal line, a second electrode facing the first electrode, and a pixel electrode connected to the second electrode. Part of the scan line has a loop shape, and part of the first electrode is located in a region overlapped with an opening of the scan line. In other words, part of the first electrode is not overlapped with the scan line.