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1. 发明申请

US20220299831A1 Display Apparatus 有权
公开(公告)号：US20220299831A1
公开(公告)日：2022-09-22
申请号：US17837711
申请日：2022-06-10
申请人： Semiconductor Energy Laboratory Co., Ltd.
发明人： Kei TAKAHASHI , Susumu KAWASHIMA , Koji KUSUNOKI , Kouhei TOYOTAKA , Kazunori WATANABE
IPC分类号： G02F1/1362 , G02F1/1368 , G02F1/137 , G09G3/36 , G09G3/20 , G02F1/133
摘要： A display apparatus in which a high voltage can be supplied to a display device is provided. The display apparatus includes a data generation circuit, a source driver circuit, and a pixel. The source driver circuit is electrically connected to the pixel through first and second wirings functioning as signal lines. The pixel includes a display device that is a liquid crystal device, a potential of one electrode of the display device can be a potential of the first wiring, and a potential of the other electrode of the display device can be a potential of the second wiring. The image data generation circuit has a function of generating digital image data including first and second data. In the case where image data corresponding to the digital image data is supplied to the pixel, one of the first and second wirings is made to have a potential corresponding to first data, and the other of the first and second wirings is made to have a potential corresponding to the first data. The potential of the first wiring and the potential of the second wiring are interchanged so that frame inversion driving or the like can be performed.

2. 发明申请

US20220284976A1 PULSE SIGNAL OUTPUT CIRCUIT AND SHIFT REGISTER 有权
公开(公告)号：US20220284976A1
公开(公告)日：2022-09-08
申请号：US17749309
申请日：2022-05-20
申请人： Semiconductor Energy Laboratory Co., Ltd.
发明人： Seiko AMANO , Kouhei TOYOTAKA , Hiroyuki MIYAKE , Aya MIYAZAKI , Hideaki SHISHIDO , Koji KUSUNOKI
IPC分类号： G11C19/28 , H03K19/00 , G11C19/18 , H01L25/03 , H05K7/02 , G09G3/36 , H01L27/12
摘要： An object is to provide a pulse signal output circuit capable of operating stably and a shift register including the pulse signal output circuit. A pulse signal output circuit according to one embodiment of the disclosed invention includes first to tenth transistors. The ratio W/L of the channel width W to the channel length L of the first transistor and W/L of the third transistor are each larger than W/L of the sixth transistor. W/L of the fifth transistor is larger than W/L, of the sixth transistor. W/L of the fifth transistor is equal to W/L of the seventh transistor. W/L of the third transistor is larger than W/L of the fourth transistor. With such a structure, a pulse signal output circuit capable of operating stably and a shift register including the pulse signal output circuit can be provided.

3. 发明申请

US20220037475A1 SEMICONDUCTOR DEVICE AND ELECTRONIC DEVICE 有权
公开(公告)号：US20220037475A1
公开(公告)日：2022-02-03
申请号：US17279735
申请日：2019-10-22
申请人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
发明人： Kouhei TOYOTAKA , Hideki UOCHI
IPC分类号： H01L29/26 , H01L27/088 , H02M7/10 , H01L27/06
摘要： A semiconductor device and the like with low power consumption are provided. In a semiconductor device including an electrostatic actuator group, an OS transistor and a capacitor are provided in each electrostatic actuator, and a power supply voltage supplied from the outside is boosted in each electrostatic actuator. The use of the OS transistor can retain the boosted voltage for a long period even after the supply of the power supply voltage is stopped. The use of the OS transistor can miniaturize the capacitor.

4. 发明申请

US20210366381A1 DISPLAY DEVICE, OPERATION METHOD THEREOF, AND ELECTRONIC DEVICE 有权
公开(公告)号：US20210366381A1
公开(公告)日：2021-11-25
申请号：US17393429
申请日：2021-08-04
申请人： Semiconductor Energy Laboratory Co., Ltd.
发明人： Susumu KAWASHIMA , Koji KUSUNOKI , Kazunori WATANABE , Kouhei TOYOTAKA , Kei TAKAHASHI , Kentaro HAYASHI , Shunpei YAMAZAKI
IPC分类号： G09G3/3225 , H01L27/32 , H01L29/786
摘要： A display device that can display a high-luminance image is provided. The display device includes a display element and a memory circuit which is electrically connected to a first wiring and a second wiring. First, a reference potential is supplied to the first wiring. Next, a first image signal is supplied to the memory circuit through the second wiring. Then, the second image signal is added to the first image signal by supplying the second image signal to the memory circuit through the first wiring. After that, an image obtained by superimposing an image corresponding to the first image signal and an image corresponding to the second image signal on each other is displayed with the display element.

5. 发明申请

US20210343755A1 DISPLAY DEVICE, DISPLAY MODULE, AND ELECTRONIC DEVICE 有权
公开(公告)号：US20210343755A1
公开(公告)日：2021-11-04
申请号：US17377787
申请日：2021-07-16
申请人： Semiconductor Energy Laboratory Co., Ltd.
发明人： Kouhei TOYOTAKA , Kei TAKAHASHI , Hideaki SHISHIDO , Koji KUSUNOKI
IPC分类号： H01L27/12 , H01L29/04 , H01L29/49 , H01L29/786
摘要： A novel display device or the like in which a transistor connected to a scan line has small gate capacitance is provided. A novel display device or the like in which a scan line has low resistance is provided. A novel display device or the like in which pixels can be arranged with high density is provided. A novel display device or the like that can be manufactured without an increase in cost is provided. In a transistor including a first gate electrode and a second gate electrode, the first gate electrode is formed using a metal material with low resistance and the second gate electrode is formed using a metal oxide material that can reduce oxygen vacancies in an oxide semiconductor layer. The first gate electrode is connected to the scan line, and the second gate electrode is connected to a wiring to which a constant potential is supplied.

6. 发明申请

US20210319764A1 DISPLAY APPARATUS AND ELECTRONIC DEVICE 有权
公开(公告)号：US20210319764A1
公开(公告)日：2021-10-14
申请号：US17285603
申请日：2019-10-28
申请人： Semiconductor Energy Laboratory Co., Ltd.
发明人： Kouhei TOYOTAKA , Motoharu SAITO
IPC分类号： G09G3/36
摘要： A display apparatus which includes a driver with low power consumption and in which an output voltage of the driver is boosted by a pixel is provided. The source driver in which a logic unit and an amplifier unit operate appropriately by the same low voltage is included, and the pixel has a function of retaining first data, a function of adding second data to the first data to generate third data, and a function of supplying the third data to a display device. Thus, even when a voltage output from the source driver is low, the voltage can be boosted by the pixel; accordingly, the display device can operate appropriately.

7. 发明申请

US20210288124A1 DISPLAY PANEL, DISPLAY DEVICE, INPUT/OUTPUT DEVICE, AND DATA PROCESSING DEVICE 有权
公开(公告)号：US20210288124A1
公开(公告)日：2021-09-16
申请号：US17333320
申请日：2021-05-28
申请人： Semiconductor Energy Laboratory Co., Ltd.
发明人： Kouhei TOYOTAKA , Kei TAKAHASHI , Hideaki SHISHIDO , Shunpei YAMAZAKI
IPC分类号： H01L27/32 , H01L27/02 , H01L51/56 , G09G3/20 , G06F3/041 , H01L27/12 , H01L29/66 , G09G3/3233
摘要： A novel display panel that is highly convenient or reliable is provided. The display panel includes a display region, and the display region includes a first group of pixels, a second group of pixels, a third group of pixels, a fourth group of pixels, a first scan line, a second scan line, a first signal line, and a second signal line. The first group of pixels include a first pixel and are arranged in a row direction. The second group of pixels include a second pixel and are arranged in the row direction. The third group of pixels include a first pixel and are arranged in a column direction that intersects the row direction. The fourth group of pixels include a second pixel and are arranged in the column direction. The first signal line is electrically connected to the third group of pixels and the second signal line is electrically connected to the fourth group of pixels. The first scan line is electrically connected to the first group of pixels and the second scan line is electrically connected to the second group of pixels.

8. 发明申请

US20210174734A1 DISPLAY AND ELECTRONIC DEVICE INCLUDING THE DISPLAY 有权
公开(公告)号：US20210174734A1
公开(公告)日：2021-06-10
申请号：US16768720
申请日：2018-12-11
申请人： Semiconductor Energy Laboratory Co., Ltd.
发明人： Kei TAKAHASHI , Koji KUSUNOKI , Kazunori WATANABE , Susumu KAWASHIMA , Kouhei TOYOTAKA , Shunpei YAMAZAKI
IPC分类号： G09G3/32 , H01L25/075 , H01L33/32 , H01L27/105 , H01L27/12 , H01L29/786
摘要： A novel display is provided. A display having a small change in chromaticity of a micro light-emitting diode in proportion to current density is provided. A display capable of reducing power consumption in the driver circuit when displaying a still image is provided. The display includes a plurality of pixels each including a display element and a microcontroller. The microcontroller includes a first transistor, a triangular wave generator circuit, a comparator, a switch, and a constant current circuit. The first transistor has a function of retaining a potential corresponding to data written to the pixel by being switched off. The triangular wave generator circuit has a function of generating a triangular wave signal. The comparator has a function of generating an output signal corresponding to the potential and the triangular wave signal. The switch has a function of controlling whether or not to make a current flowing in the constant current circuit flow to the display element in accordance with the output signal.

9. 发明申请

US20210005637A1 DISPLAY DEVICE, DISPLAY MODULE, AND ELECTRONIC DEVICE 有权
公开(公告)号：US20210005637A1
公开(公告)日：2021-01-07
申请号：US17023863
申请日：2020-09-17
申请人： Semiconductor Energy Laboratory Co., Ltd.
发明人： Kouhei TOYOTAKA , Kei TAKAHASHI , Hideaki SHISHIDO , Koji KUSUNOKI
IPC分类号： H01L27/12 , H01L29/04 , H01L29/49 , H01L29/786
摘要： A novel display device or the like in which a transistor connected to a scan line has small gate capacitance is provided. A novel display device or the like in which a scan line has low resistance is provided. A novel display device or the like in which pixels can be arranged with high density is provided. A novel display device or the like that can be manufactured without an increase in cost is provided. In a transistor including a first gate electrode and a second gate electrode, the first gate electrode is formed using a metal material with low resistance and the second gate electrode is formed using a metal oxide material that can reduce oxygen vacancies in an oxide semiconductor layer. The first gate electrode is connected to the scan line, and the second gate electrode is connected to a wiring to which a constant potential is supplied.

10. 发明申请

US20210005155A1 METHOD FOR OPERATING DISPLAY DEVICE 有权
公开(公告)号：US20210005155A1
公开(公告)日：2021-01-07
申请号：US16981185
申请日：2019-03-21
申请人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
发明人： Kouhei TOYOTAKA , Shigeru ONOYA , Marina HIYAMA
IPC分类号： G09G3/36
摘要： A display device in which high voltage can be applied to a display element is provided. A display element includes a pixel provided with a display element including a pixel electrode and a common electrode, and the pixel is electrically connected to a first data line and a second data line. Supply of a first potential to the pixel through the first data line and supply of a second potential to the pixel through the second data line are performed concurrently, and then a third potential is supplied to the pixel through the second data line, whereby the first potential held in the pixel is changed to a fourth potential, and the fourth potential is applied to the pixel electrode. Here, the second potential is a potential calculated based on the first potential. When the value of the second potential is less than or equal to a potential applied to the common electrode, the third potential is higher than the potential applied to the common electrode. In contrast, when the value of the second potential is greater than or equal to the potential applied to the common electrode, the third potential is lower than the potential applied to the common electrode.

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