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公开(公告)号:US12105384B2
公开(公告)日:2024-10-01
申请号:US18380817
申请日:2023-10-17
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor: Hiroyuki Miyake , Makoto Kaneyasu
IPC: H01L29/786 , G02F1/1343 , G02F1/1362 , G09F9/30 , G09G3/36 , H01L27/12 , G02F1/13357 , G02F1/136
CPC classification number: G02F1/1343 , G02F1/136286 , G09F9/30 , G09G3/3648 , H01L27/1225 , H01L29/78648 , H01L29/7869 , H01L29/78696 , G02F1/133602 , G02F1/13606 , G09G2300/0439
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:US12080717B2
公开(公告)日:2024-09-03
申请号:US16910196
申请日:2020-06-24
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor: Shunpei Yamazaki , Hiroyuki Miyake , Hideaki Shishido , Jun Koyama
IPC: H01L27/12 , H01L29/786
CPC classification number: H01L27/1225 , H01L27/1255 , H01L29/7869
Abstract: A semiconductor device including a capacitor whose charge capacity is increased while improving the aperture ratio is provided. Further, a semiconductor device which consumes less power is provided. A transistor which includes a light-transmitting semiconductor film, a capacitor in which a dielectric film is provided between a pair of electrodes, an insulating film which is provided over the light-transmitting semiconductor film, and a first light-transmitting conductive film which is provided over the insulating film are included. The capacitor includes the first light-transmitting conductive film which serves as one electrode, the insulating film which functions as a dielectric, and a second light-transmitting conductive film which faces the first light-transmitting conductive film with the insulating film positioned therebetween and functions as the other electrode. The second light-transmitting conductive film is formed over the same surface as the light-transmitting semiconductor film of the transistor and is a metal oxide film containing a dopant.
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公开(公告)号:US12046211B2
公开(公告)日:2024-07-23
申请号:US17338739
申请日:2021-06-04
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor: Jun Koyama , Hiroyuki Miyake
IPC: G09G3/36 , G06F3/042 , G02F1/1345 , G06F3/044
CPC classification number: G09G3/3655 , G06F3/0421 , G09G3/3618 , G09G3/3648 , G09G3/3696 , G02F1/1345 , G06F3/044 , G09G2300/0809 , G09G2310/04 , G09G2310/061 , G09G2310/08 , G09G2320/0209 , G09G2320/0219 , G09G2320/10 , G09G2320/103 , G09G2330/021 , G09G2340/0435 , G09G2340/16 , G09G2354/00
Abstract: The liquid crystal display device includes a first substrate provided with a terminal portion, a switching transistor, a driver circuit portion, and a pixel circuit portion including a pixel transistor and a plurality of pixels, a second substrate provided with a common electrode electrically connected to the terminal portion through the switching transistor, and liquid crystal between a pixel electrode and the common electrode. In a period during which a still image is switched to a moving image, the following steps are sequentially performed: a first step of supplying the common potential to the common electrode; a second step of supplying a power supply voltage to the driver circuit portion; a third step of supplying a clock signal to the driver circuit portion; and a fourth step of supplying a start pulse signal to the driver circuit portion.
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公开(公告)号:US11967598B2
公开(公告)日:2024-04-23
申请号:US17576024
申请日:2022-01-14
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor: Atsushi Umezaki , Hiroyuki Miyake
CPC classification number: H01L27/124 , G09G3/2092 , G09G3/3677 , G11C19/28 , H01L27/0207 , H01L27/1222 , H01L27/1225 , G09G3/3266 , G09G3/3674 , G09G2300/0809 , G09G2310/0205 , G09G2310/0248 , G09G2310/0286 , G09G2310/0289 , G09G2310/0291 , G09G2310/061 , G09G2320/0646 , G09G2320/0666
Abstract: To suppress fluctuation in the threshold voltage of a transistor, to reduce the number of connections of a display panel and a driver IC, to achieve reduction in power consumption of a display device, and to achieve increase in size and high definition of the display device. A gate electrode of a transistor which easily deteriorates is connected to a wiring to which a high potential is supplied through a first switching transistor and a wiring to which a low potential is supplied through a second switching transistor; a clock signal is input to a gate electrode of the first switching transistor; and an inverted clock signal is input to a gate electrode of the second switching transistor. Thus, the high potential and the low potential are alternately applied to the gate electrode of the transistor which easily deteriorates.
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公开(公告)号:US11942058B2
公开(公告)日:2024-03-26
申请号:US17961778
申请日:2022-10-07
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor: Seiko Amano , Hiroyuki Miyake
IPC: G09G3/36 , G06F1/3234 , G06F3/038 , G09G3/3266 , G11C19/28 , H01L27/12 , G09G5/00
CPC classification number: G09G3/3677 , G06F1/3265 , G06F3/038 , G09G3/3266 , G11C19/28 , H01L27/124 , G09G5/008 , G09G2300/0809 , G09G2300/0871 , G09G2310/0205 , G09G2310/0248 , G09G2310/0286 , G09G2310/08 , G09G2320/0247 , G09G2330/021
Abstract: In a pulse output circuit in a shift register, a power source line which is connected to a transistor in an output portion connected to a pulse output circuit at the next stage is set to a low-potential drive voltage, and a power source line which is connected to a transistor in an output portion connected to a scan signal line is set to a variable potential drive voltage. The variable potential drive voltage is the low-potential drive voltage in a normal mode, and can be either a high-potential drive voltage or the low-potential drive voltage in a batch mode. In the batch mode, display scan signals can be output to a plurality of scan signal lines at the same timing in a batch.
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公开(公告)号:US11776968B2
公开(公告)日:2023-10-03
申请号:US17328171
申请日:2021-05-24
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 , H10K59/121 , H01L29/49
CPC classification number: H01L27/1229 , G09G3/20 , G11C19/28 , H01L27/1225 , H01L27/1251 , H01L29/045 , H01L29/1033 , H01L29/24 , H01L29/247 , H01L29/41733 , H01L29/42372 , H01L29/45 , H01L29/7869 , H01L29/78648 , H01L29/78693 , G09G2310/0267 , G09G2310/0275 , G09G2310/0286 , H01L29/4908 , H01L29/78609 , 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.
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公开(公告)号:US20230282649A1
公开(公告)日:2023-09-07
申请号:US18196177
申请日:2023-05-11
Applicant: Semiconductor Energy Laboratory Co., Ltd
Inventor: Kei Takahashi , Hiroyuki Miyake
IPC: H01L27/12 , G09G3/3225 , G09G3/3233 , G09G3/3266
CPC classification number: H01L27/1225 , H01L27/1222 , H01L27/1251 , G09G3/3225 , G09G3/3233 , G09G3/3266 , H01L27/1255 , H01L27/1262 , G09G2300/0465 , G09G2300/0426 , G09G3/3275
Abstract: A display device including a display portion with an extremely high resolution is provided. The display device includes a pixel circuit and a light-emitting element. The pixel circuit includes a first element layer including a first transistor and a second element layer including a second transistor. A channel formation region of the first transistor includes silicon. The first transistor has a function of driving the light-emitting element. The second transistor functions as a switch. A channel formation region of the second transistor includes a metal oxide. The metal oxide functions as a semiconductor. The second element layer is provided over the first element layer.
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公开(公告)号:US11647663B2
公开(公告)日:2023-05-09
申请号:US17379007
申请日:2021-07-19
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor: Hiroyuki Miyake , Hisao Ikeda
CPC classification number: H01L27/3204 , G06F1/1652 , H01K1/00 , H01L24/50 , H01L27/3293 , H01L51/0097 , H01L51/5212 , H01L51/5228 , H01L27/3276 , H01L2251/5338 , Y02E10/549
Abstract: To provide a display device that is suitable for increasing in size, a display device in which display unevenness is suppressed, or a display device that can display an image along a curved surface. The display device includes a first display panel and a second display panel each including a pair of substrates. The first display panel and the second display panel each include a first region which can transmit visible light, a second region which can block visible light, and a third region which can perform display. The third region of the first display panel and the first region of the second display panel overlap each other. The third region of the first display panel and the second region of the second display panel do not overlap each other.
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公开(公告)号:US20220173131A1
公开(公告)日:2022-06-02
申请号:US17673212
申请日:2022-02-16
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor: Kei Takahashi , Hiroyuki Miyake
IPC: H01L27/12 , G09G3/3233 , G09G3/3266 , G09G3/3225
Abstract: A display device including a display portion with an extremely high resolution is provided. The display device includes a pixel circuit and a light-emitting element. The pixel circuit includes a first element layer including a first transistor and a second element layer including a second transistor. A channel formation region of the first transistor includes silicon. The first transistor has a function of driving the light-emitting element. The second transistor functions as a switch. A channel formation region of the second transistor includes a metal oxide. The metal oxide functions as a semiconductor. The second element layer is provided over the first element layer.
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公开(公告)号:US11187944B2
公开(公告)日:2021-11-30
申请号:US17061876
申请日:2020-10-02
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor: Hiroyuki Miyake , Makoto Kaneyasu
IPC: H01L29/10 , H01L29/12 , G02F1/1343 , G02F1/1362 , G09F9/30 , G09G3/36 , H01L27/12 , H01L29/786 , G02F1/136 , G02F1/13357
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.
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