专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

61. 发明授权

US11423855B2 Display panel, display device, input/output device, and data processing device 有权
公开(公告)号：US11423855B2
公开(公告)日：2022-08-23
申请号：US16771246
申请日：2018-12-11
申请人： Semiconductor Energy Laboratory Co., Ltd.
发明人： Kouhei Toyotaka , Kei Takahashi , Koji Kusunoki , Kazunori Watanabe , Susumu Kawashima
IPC分类号： G06F3/041 , G09G3/36 , G02F1/1368
摘要： A novel display panel that is highly convenient or reliable is provided. A pixel circuit includes a first switch, a node, a capacitor, and a second switch. The first switch includes a first terminal to which a first signal is supplied and a second terminal electrically connected to the node. The capacitor includes a first terminal electrically connected to the node and a second terminal electrically connected to the second switch. The second switch includes a first terminal to which a second signal is supplied and a second terminal electrically connected to the second terminal of the capacitor. In addition, the second switch has a function of changing from a non-conducting state to a conducting state when the first switch is in a non-conducting state and a function of changing from a conducting state to a non-conducting state when the first switch is in a non-conducting state. The display element performs display on the basis of a potential of the node.

62. 发明授权

US11217190B2 Display device including pixels and source drive circuit 有权
公开(公告)号：US11217190B2
公开(公告)日：2022-01-04
申请号：US16770998
申请日：2018-12-13
申请人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
发明人： Susumu Kawashima , Koji Kusunoki , Kei Takahashi , Kouhei Toyotaka , Kazunori Watanabe , Shigeru Onoya
IPC分类号： G09G3/36 , G02F1/1362 , G02F1/1368 , H01L27/12 , H01L29/24 , H01L29/786
摘要： An object of the present invention is to provide a display device with high display quality. The display device of the present invention includes a pixel and a source driver circuit. The pixel includes first and second transistors (21, 22), a capacitor (25), and a display element (26). The source driver circuit is electrically connected to first and second wirings (31, 32). The first wiring (31) is electrically connected to one electrode of the capacitor 25 and one electrode of the display element (26) through the first transistor (21). The second wiring (32) is electrically connected to the other electrode of the capacitor (25) and the other electrode of the display element (26) through the second transistor (22).

63. 发明授权

US11043543B2 Touch sensor and touch panel 有权
公开(公告)号：US11043543B2
公开(公告)日：2021-06-22
申请号：US15188462
申请日：2016-06-21
申请人： Semiconductor Energy Laboratory Co., Ltd.
发明人： Kensuke Yoshizumi , Hideaki Shishido , Kazunori Watanabe
IPC分类号： G06F3/041 , H01L27/32 , G06F3/044
摘要： A thin touch panel is provided. A touch panel with a simple structure is provided. The number of components of a touch panel is reduced. Each of a pair of wirings of a touch sensor is positioned closer to a substrate supporting light-emitting elements than a common electrode is, and includes a portion positioned between two adjacent pixel electrodes in a plan view. Furthermore, an island-like structure body with an inverse tapered shape is provided over each of the pair of wirings. A conductive layer in an electrically floating state is provided over the structure body. Each conductive layer has a portion overlapping with one of the pair of wirings. Moreover, the conductive layer and the common electrode are formed using the same conductive film.

64. 发明授权

US11004983B2 Semiconductor device 有权
公开(公告)号：US11004983B2
公开(公告)日：2021-05-11
申请号：US16778336
申请日：2020-01-31
申请人： Semiconductor Energy Laboratory Co., Ltd.
发明人： Shunpei Yamazaki , Masashi Tsubuku , Kosei Noda , Kouhei Toyotaka , Kazunori Watanabe , Hikaru Harada
IPC分类号： H01L29/786 , H01L27/108 , H01L27/11 , H01L49/02 , H01L27/12 , G06F15/76 , H01L29/24 , H01L29/417 , H01L29/423
摘要： An object is to provide a memory device including a memory element that can be operated without problems by a thin film transistor with a low off-state current. Provided is a memory device in which a memory element including at least one thin film transistor that includes an oxide semiconductor layer is arranged as a matrix. The thin film transistor including an oxide semiconductor layer has a high field effect mobility and low off-state current, and thus can be operated favorably without problems. In addition, the power consumption can be reduced. Such a memory device is particularly effective in the case where the thin film transistor including an oxide semiconductor layer is provided in a pixel of a display device because the memory device and the pixel can be formed over one substrate.

65. 发明授权

US10756118B2 Display device, display module, and electronic device 有权
公开(公告)号：US10756118B2
公开(公告)日：2020-08-25
申请号：US15820965
申请日：2017-11-22
申请人： Semiconductor Energy Laboratory Co., Ltd.
发明人： Shunpei Yamazaki , Kenichi Okazaki , Daisuke Kurosaki , Yasutaka Nakazawa , Kazunori Watanabe , Koji Kusunoki
IPC分类号： G02F1/1368 , H01L27/12 , H01L29/786
摘要： A display device includes a liquid crystal element, a transistor, a scan line, and a signal line. The liquid crystal element includes a pixel electrode, a liquid crystal layer, and a common electrode. The scan line and the signal line are each electrically connected to the transistor. The scan line and the signal line each include a metal layer. The transistor is electrically connected to the pixel electrode. A semiconductor layer of the transistor includes a stack of a first metal oxide layer and a second metal oxide layer. The first metal oxide layer includes a region with lower crystallinity than the second metal oxide layer. The transistor includes a first region connected to the pixel electrode. The pixel electrode, the common electrode, and the first region are each configured to transmit visible light. Visible light passes through the first region and the liquid crystal element and exits from the display device.

66. 发明授权

US10139663B2 Input/output device and electronic device 有权
公开(公告)号：US10139663B2
公开(公告)日：2018-11-27
申请号：US15153077
申请日：2016-05-12
申请人： Semiconductor Energy Laboratory Co., Ltd.
发明人： Hideaki Shishido , Koji Kusunoki , Kouhei Toyotaka , Kazunori Watanabe , Makoto Kaneyasu
IPC分类号： G02F1/1335 , G02F1/1333 , G06F3/041 , G06F3/044 , G02F1/1362 , G02F1/1343
摘要： An input/output device is provided. The input/output device includes a first pixel electrode, a second pixel electrode, a first common electrode, a second common electrode, a liquid crystal, a first insulating film, a second insulating film, and a transistor. The first common electrode can serve as one electrode of a sensor element. The second common electrode can serve as the other electrode of the sensor element. The transistor includes a first gate, a second gate, and a semiconductor layer. The pixel electrode, the common electrodes, and the second gate are positioned on different planes. The second gate contains one or more kinds of metal elements included in the semiconductor layer. The second gate, the pixel electrode, and the common electrodes preferably contain one or more kinds of metal elements included in the semiconductor layer.

67. 发明授权

US09600107B2 Touch panel including a touch sensor 有权
公开(公告)号：US09600107B2
公开(公告)日：2017-03-21
申请号：US14644814
申请日：2015-03-11
申请人： Semiconductor Energy Laboratory Co., Ltd.
发明人： Makoto Kaneyasu , Kazunori Watanabe , Hiroyuki Miyake
IPC分类号： G06F3/041
CPC分类号： G06F3/041 , G06F3/0412 , G06F2203/04102
摘要： To provide a touch panel in which a decrease in display quality is suppressed. The touch panel includes a touch sensor and a display element. The touch sensor includes a transistor and a sensor element. The transistor is electrically connected to the sensor element. The sensor element includes a pair of electrodes and a dielectric layer. The dielectric layer is positioned between the pair of electrodes. One of the pair of electrodes is an island-shaped electrode. The display element can display an image toward the touch sensor side. The island-shaped electrode does not overlap with a display region of the display element.

68. 发明授权

US09501119B2 Semiconductor device and electronic device 有权
公开(公告)号：US09501119B2
公开(公告)日：2016-11-22
申请号：US14608844
申请日：2015-01-29
申请人： Semiconductor Energy Laboratory Co., Ltd.
发明人： Kazunori Watanabe
IPC分类号： G06F1/26 , G06F1/32 , H02M3/158 , H02M3/07 , G06F1/10
CPC分类号： H02M3/07 , G05F3/205 , G06F1/3234 , G06F1/3287 , G11C5/145 , G11C5/146 , H02M3/073 , H02M2003/078 , Y02D10/171
摘要： To reduce a variation in the electrical characteristics of a transistor. A potential generated by a voltage converter circuit is applied to a back gate of a transistor included in a voltage conversion block. Since the back gate of the transistor is not in a floating state, a current flowing through the back channel can be controlled so as to reduce a variation in the electrical characteristics of the transistor. Further, a transistor with low off-state current is used as the transistor included in the voltage conversion block, whereby storage of the output potential is controlled.

69. 发明授权

US09385592B2 Charge pump circuit and semiconductor device including the same 有权
标题翻译：电荷泵电路和包括其的半导体器件
公开(公告)号：US09385592B2
公开(公告)日：2016-07-05
申请号：US14457525
申请日：2014-08-12
申请人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
发明人： Kazunori Watanabe , Tomoaki Atsumi
IPC分类号： G05F1/10 , H02M3/07
CPC分类号： H02M3/07 , H02M3/073
摘要： Efficiency of a charge pump circuit is increased. The charge pump circuit includes serially connected fundamental circuits each including a diode-connected transistor and a capacitor. At least one transistor is provided with a back gate, and the back gate is connected to any node in the charge pump circuit. For example, the charge pump circuit is of a step-up type; in which case, if the transistor is an n-channel transistor, a back gate of the transistor in the last stage is connected to an output node of the charge pump circuit. Back gates of the transistors in the other stages are connected to an input node of the charge pump circuit. In this way, the voltage holding capability of the fundamental circuit in the last stage is increased, and the conversion efficiency can be increased because an increase in the threshold of the transistors in the other stages is prevented.
摘要翻译：电荷泵电路的效率提高。电荷泵电路包括串联连接的基本电路，每个基本电路包括二极管连接的晶体管和电容器。至少一个晶体管设置有背栅极，并且后栅极连接到电荷泵电路中的任何节点。例如，电荷泵电路是升压型的; 在这种情况下，如果晶体管是n沟道晶体管，则最后级的晶体管的背栅极连接到电荷泵电路的输出节点。其他级中的晶体管的背栅极连接到电荷泵电路的输入节点。以这种方式，最后阶段的基本电路的电压保持能力增加，并且由于其它级的晶体管的阈值的增加被阻止，可以提高转换效率。

70. 发明授权

US09230502B2 Display device having blocking circuit for extracting start pulse from signal 有权
标题翻译：具有用于从信号提取起始脉冲的阻塞电路的显示装置
公开(公告)号：US09230502B2
公开(公告)日：2016-01-05
申请号：US13761461
申请日：2013-02-07
申请人： Semiconductor Energy Laboratory Co., Ltd.
发明人： Kazunori Watanabe
IPC分类号： G09G5/00 , G09G5/18 , G09G3/32
CPC分类号： G09G5/00 , G09G3/3225 , G09G5/18 , G09G2300/0426 , G09G2320/0223 , G09G2330/02 , G09G2370/08
摘要： A display device with fewer terminals. The display device includes a timing signal generating circuit which outputs an output signal based on a clock signal, in which one signal line serves as both a signal line to which a start pulse signal that drives the timing signal generating circuit is input and a signal line to which an image signal is input. Further, a blocking circuit which outputs a start pulse to the timing signal generating circuit but does not output the image signal is provided between the signal line and the timing signal generating circuit.
摘要翻译：具有较少端子的显示设备。显示装置包括定时信号发生电路，其基于时钟信号输出输出信号，其中一条信号线用作输入定时信号发生电路的起始脉冲信号的信号线和信号线输入图像信号。此外，在信号线和定时信号发生电路之间设置有向定时信号发生电路输出起始脉冲但不输出图像信号的分块电路。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式