公开(公告)号：US20240258323A1

公开(公告)日：2024-08-01

申请号：US18631351

申请日：2024-04-10

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei YAMAZAKI ,  Jun KOYAMA ,  Hiroyuki MIYAKE

IPC: H01L27/12 ,  H01L21/02 ,  H01L27/088 ,  H01L29/04 ,  H01L29/24 ,  H01L29/49 ,  H01L29/786

CPC classification number: H01L27/1225 ,  H01L27/0883 ,  H01L27/1251 ,  H01L27/127 ,  H01L27/1288 ,  H01L29/045 ,  H01L29/24 ,  H01L29/78669 ,  H01L29/78678 ,  H01L29/7869 ,  H01L29/78693 ,  H01L29/78696 ,  H01L21/02603 ,  H01L29/04 ,  H01L29/4908 ,  H01L2924/13069

Abstract: An oxide semiconductor layer which is intrinsic or substantially intrinsic and includes a crystalline region in a surface portion of the oxide semiconductor layer is used for the transistors. An intrinsic or substantially intrinsic semiconductor from which an impurity which is to be an electron donor (donor) is removed from an oxide semiconductor and which has a larger energy gap than a silicon semiconductor is used. Electrical characteristics of the transistors can be controlled by controlling the potential of a pair of conductive films which are provided on opposite sides from each other with respect to the oxide semiconductor layer, each with an insulating film arranged therebetween, so that the position of a channel formed in the oxide semiconductor layer is determined.

公开(公告)号：US20240094775A1

公开(公告)日：2024-03-21

申请号：US18522350

申请日：2023-11-29

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Yoshiharu HIRAKATA ,  Hiroyuki MIYAKE ,  Seiko INOUE ,  Shunpei YAMAZAKI

IPC: G06F1/16 ,  G06F3/041

CPC classification number: G06F1/1652 ,  G06F3/041 ,  G06F2203/04102

Abstract: A display device with low power consumption is provided. Furthermore, a display device in which an image is displayed in a region that can be used in a folded state is provided. The conceived display device includes a display portion that can be opened and folded, a sensing portion that senses a folded state of the display portion, and an image processing portion that generates, when the display portion is in the folded state, an image in which a black image is displayed in part of the display portion.

公开(公告)号：US20240061292A1

公开(公告)日：2024-02-22

申请号：US18380817

申请日：2023-10-17

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hiroyuki MIYAKE ,  Makoto KANEYASU

IPC: G02F1/1343 ,  G09F9/30 ,  G09G3/36 ,  H01L29/786 ,  H01L27/12 ,  G02F1/1362

CPC classification number: G02F1/1343 ,  G09F9/30 ,  G09G3/3648 ,  H01L29/7869 ,  H01L29/78696 ,  H01L29/78648 ,  H01L27/1225 ,  G02F1/136286 ,  G02F1/13606

Abstract: A display device in which parasitic capacitance between wirings can be reduced is provided. Furthermore, a display device in which display quality is improved is provided. Furthermore, a display device in which power consumption can be reduced is provided. The display device includes a signal line, a scan line, a first electrode, a second electrode, a third electrode, a first pixel electrode, a second pixel electrode, and a semiconductor film. The signal line intersects with the scan line, the first electrode is electrically connected to the signal line, the first electrode has a region overlapping with the scan line, the second electrode faces the first electrode, the third electrode faces the first electrode, the first pixel electrode is electrically connected to the second electrode, the second pixel electrode is electrically connected to the third electrode, the semiconductor film is in contact with the first electrode, the second electrode, and the third electrode, and the semiconductor film is provided between the scan line and the first electrode to the third electrode.

公开(公告)号：US20230395172A1

公开(公告)日：2023-12-07

申请号：US18237429

申请日：2023-08-24

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Masayuki SAKAKURA ,  Yuugo GOTO ,  Hiroyuki MIYAKE ,  Daisuke KUROSAKI

IPC: G11C19/18 ,  H01L27/12

CPC classification number: G11C19/184 ,  H01L27/1222 ,  H01L27/1225 ,  H01L27/124 ,  H01L27/0248

Abstract: A semiconductor device in which a decrease in the yield by electrostatic destruction can be prevented is provided. A scan line driver circuit for supplying a signal for selecting a plurality of pixels to a scan line includes a shift register for generating the signal. One conductive film functioning as respective gate electrodes of a plurality of transistors in the shift register is divided into a plurality of conductive films. The divided conductive films are electrically connected to each other by a conductive film which is formed in a layer different from the divided conductive films are formed. The plurality of transistors includes a transistor on an output side of the shift register.

公开(公告)号：US20230395028A1

公开(公告)日：2023-12-07

申请号：US18236966

申请日：2023-08-23

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Seiko INOUE ,  Hiroyuki MIYAKE

IPC: G09G3/3233 ,  H01L27/12

CPC classification number: G09G3/3233 ,  G09G3/3291 ,  H01L27/1225

Abstract: A light-emitting device in which variation in luminance of pixels is suppressed. A light-emitting device includes at least a transistor, a first wiring, a second wiring, a first switch, a second switch, a third switch, a fourth switch, a capacitor, and a light-emitting element. The first wiring and a first electrode of the capacitor are electrically connected to each other through the first switch. A second electrode of the capacitor is connected to a first terminal of the transistor. The second wiring and a gate of the transistor are electrically connected to each other through the second switch. The first electrode of the capacitor and the gate of the transistor are electrically connected to each other through the third switch. The first terminal of the transistor and an anode of the light-emitting element are electrically connected to each other through the fourth switch.

公开(公告)号：US20230376076A1

公开(公告)日：2023-11-23

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 ,  H10K59/40 ,  H10K77/10 ,  G06F3/045 ,  G06F3/0488 ,  G06F15/02

CPC classification number: G06F1/1652 ,  G06F3/04166 ,  G06F3/0445 ,  G06F3/0446 ,  H10K59/40 ,  H10K77/111 ,  G06F3/0412 ,  G06F3/045 ,  G06F3/0488 ,  G06F15/0216 ,  G06F2203/04111 ,  G06F2203/04112 ,  G06F1/1618 ,  G06F1/1677 ,  Y02E10/549 ,  G06F2200/1633 ,  G06F2203/04101 ,  G06F2203/04102 ,  G06F2203/04104 ,  G06F2203/04808

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：US20230335561A1

公开(公告)日：2023-10-19

申请号：US18207175

申请日：2023-06-08

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei YAMAZAKI ,  Jun KOYAMA ,  Hiroyuki MIYAKE

IPC: H01L27/12 ,  H01L29/04 ,  H01L29/417 ,  H01L29/423 ,  H01L29/10 ,  H01L29/45 ,  H01L29/24 ,  G09G3/20 ,  G11C19/28 ,  H01L29/786

CPC classification number: H01L27/1229 ,  H01L29/045 ,  H01L29/41733 ,  H01L29/42372 ,  H01L29/1033 ,  H01L29/45 ,  H01L29/24 ,  G09G3/20 ,  G11C19/28 ,  H01L27/1225 ,  H01L27/1251 ,  H01L29/78648 ,  H01L29/7869 ,  H01L29/247 ,  H01L29/78693 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2310/0286 ,  H10K59/1213

Abstract: An object of an embodiment of the present invention is to manufacture a semiconductor device with high display quality and high reliability, which includes a pixel portion and a driver circuit portion capable of high-speed operation over one substrate, using transistors having favorable electric characteristics and high reliability as switching elements. Two kinds of transistors, in each of which an oxide semiconductor layer including a crystalline region on one surface side is used as an active layer, are formed in a driver circuit portion and a pixel portion. Electric characteristics of the transistors can be selected by choosing the position of the gate electrode layer which determines the position of the channel. Thus, a semiconductor device including a driver circuit portion capable of high-speed operation and a pixel portion over one substrate can be manufactured.

公开(公告)号：US20230261010A1

公开(公告)日：2023-08-17

申请号：US18138816

申请日：2023-04-25

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hiroyuki MIYAKE

IPC: H01L27/12 ,  H01L29/786 ,  G09G3/3233

CPC classification number: H01L27/1255 ,  H01L29/7869 ,  H01L27/1225 ,  G09G3/3233 ,  H01L29/78648 ,  H10K59/123

Abstract: To provide a light-emitting device in which variation in luminance among pixels caused by variation in threshold voltage of transistors can be suppressed. The light-emitting device includes a transistor including a first gate and a second gate overlapping with each other with a semiconductor film therebetween, a first capacitor maintaining a potential difference between one of a source and a drain of the transistor and the first gate, a second capacitor maintaining a potential difference between one of the source and the drain of the transistor and the second gate, a switch controlling conduction between the second gate of the transistor and a wiring, and a light-emitting element to which drain current of the transistor is supplied.

公开(公告)号：US20230012554A1

公开(公告)日：2023-01-19

申请号：US17949396

申请日：2022-09-21

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hiroyuki MIYAKE ,  Makoto KANEYASU

IPC: G02F1/1343 ,  G09F9/30 ,  G09G3/36 ,  H01L29/786 ,  H01L27/12 ,  G02F1/1362

Abstract: A display device in which parasitic capacitance between wirings can be reduced is provided. Furthermore, a display device in which display quality is improved is provided. Furthermore, a display device in which power consumption can be reduced is provided.
The display device includes a signal line, a scan line, a first electrode, a second electrode, a third electrode, a first pixel electrode, a second pixel electrode, and a semiconductor film. The signal line intersects with the scan line, the first electrode is electrically connected to the signal line, the first electrode has a region overlapping with the scan line, the second electrode faces the first electrode, the third electrode faces the first electrode, the first pixel electrode is electrically connected to the second electrode, the second pixel electrode is electrically connected to the third electrode, the semiconductor film is in contact with the first electrode, the second electrode, and the third electrode, and the semiconductor film is provided between the scan line and the first electrode to the third electrode.

公开(公告)号：US20220278680A1

公开(公告)日：2022-09-01

申请号：US17742642

申请日：2022-05-12

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Hiroyuki MIYAKE ,  Kei TAKAHASHI

IPC: H03K17/16 ,  G09G3/36 ,  G11C19/28 ,  H01L27/088 ,  H03K17/687

Abstract: An object of the present invention is to suppress deterioration in the thin film transistor. A plurality of pulse output circuits each include first to eleventh thin film transistors is formed. The pulse output circuit is operated on the basis of a plurality of clock signals which control each transistor, the previous stage signal input from a pulse output circuit in the previous stage, the next stage signal input from a pulse output circuit in the next stage, and a reset signal. In addition, a microcrystalline semiconductor is used for a semiconductor layer serving as a channel region of each transistor. Therefore, degradation of characteristics of the transistor can be suppressed.