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公开(公告)号：US09983758B2
公开(公告)日：2018-05-29
申请号：US14710266
申请日：2015-05-12
Inventor： Tsutomu Furuhashi , Norio Mamba
CPC classification number: G06F3/047 , G06F3/0412 , G06F3/044 , G06F2203/04111 , G09G3/3611 , G09G5/006 , G09G5/18 , G09G2300/0404
Abstract: A liquid crystal display device includes a first substrate, a second substrate, and a liquid crystal material sandwiched between the first and second substrate. The second substrate has a touch screen electrode directly on a front-side surface of the second substrate. The first substrate has a wiring line for supplying a position detection voltage. A conductive tape electrically connects between the touch screen electrode and a driver circuit. A polarization plate is disposed above the touch screen electrode.
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公开(公告)号：US09262027B2
公开(公告)日：2016-02-16
申请号：US14261070
申请日：2014-04-24
Inventor： Norio Mamba , Koji Nagata , Koji Hayakawa
CPC classification number: G06F3/0418 , G06F3/044 , G06F3/047
Abstract: A coordinate input device includes: a coordinate input unit having a plurality of first detection electrodes and a plurality of second detection electrodes; an electrode drive circuit that applies a drive signal to one or more of the detection electrodes; a detection circuit that detects a signal of the first and/or second detection electrode; a selection circuit for selecting one or more of the detection electrodes to which the drive signal is not applied from among the detection electrodes which are disposed in parallel to the detection electrodes to which the drive signal is applied, as a reference electrode; a detection circuit for detecting a signal of the selected reference electrode; an input coordinate computing circuit for correcting a detection result of the detection circuit on the basis of the detected capacitance of the reference electrode and for calculating an input coordinate from the corrected detection result.
Abstract translation: 坐标输入装置包括：坐标输入单元，具有多个第一检测电极和多个第二检测电极; 电极驱动电路，其向一个或多个检测电极施加驱动信号; 检测电路，检测第一和/或第二检测电极的信号; 选择电路，用于从与施加驱动信号的检测电极平行设置的检测电极中选择一个或多个不施加驱动信号的检测电极作为参考电极; 用于检测所选择的参考电极的信号的检测电路; 输入坐标计算电路，用于根据检测到的参考电极的电容校正检测电路的检测结果，并根据校正的检测结果计算输入坐标。
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公开(公告)号：US10191606B2
公开(公告)日：2019-01-29
申请号：US15959393
申请日：2018-04-23
Inventor： Tsutomu Furuhashi , Norio Mamba
Abstract: A liquid crystal display device includes a first substrate, a second substrate, and a liquid crystal material sandwiched between the first and second substrate. The second substrate has a touch screen electrode directly on a front-side surface of the second substrate. The first substrate has a wiring line for supplying a position detection voltage. A conductive tape electrically connects between the touch screen electrode and a driver circuit. A polarization plate is disposed above the touch screen electrode.
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公开(公告)号：US20160117054A1
公开(公告)日：2016-04-28
申请号：US14989874
申请日：2016-01-07
Inventor： Norio Mamba , Koji Nagata , Koji Hayakawa
CPC classification number: G06F3/0418 , G06F3/044 , G06F3/047
Abstract: A coordinate input device includes: a coordinate input unit having a plurality of first detection electrodes and a plurality of second detection electrodes; an electrode drive circuit that applies a drive signal to one or more of the detection electrodes; a detection circuit that detects a signal of the first and/or second detection electrode; a selection circuit for selecting one or more of the detection electrodes to which the drive signal is not applied from among the detection electrodes which are disposed in parallel to the detection electrodes to which the drive signal is applied, as a reference electrode; a detection circuit for detecting a signal of the selected reference electrode; an input coordinate computing circuit for correcting a detection result of the detection circuit on the basis of the detected capacitance of the reference electrode and for calculating an input coordinate from the corrected detection result.
Abstract translation: 坐标输入装置包括：坐标输入单元，具有多个第一检测电极和多个第二检测电极; 电极驱动电路，其向一个或多个检测电极施加驱动信号; 检测电路，检测第一和/或第二检测电极的信号; 选择电路，用于从与施加驱动信号的检测电极平行设置的检测电极中选择一个或多个不施加驱动信号的检测电极作为参考电极; 用于检测所选择的参考电极的信号的检测电路; 输入坐标计算电路，用于根据检测到的参考电极的电容校正检测电路的检测结果，并根据校正的检测结果计算输入坐标。
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公开(公告)号：US11094265B2
公开(公告)日：2021-08-17
申请号：US16818289
申请日：2020-03-13
Applicant: Japan Display Inc.
Inventor： Motonari Kato , Ryutaro Nitobe , Norio Mamba
IPC: G09G3/3266 , G02F1/1362 , H01L27/32 , G09G3/36
Abstract: A display device capable of suppressing the display quality deterioration is provided even if an optically transparent nondisplay area is formed inside the display area of the display panel of the display device. The display device comprises a display panel including signal lines, scanning lines, and pixels that are connected to the signal lines and scanning lines and surrounded by the signal lines and scanning lines. The display panel includes a display area and an optically transparent nondisplay area inside the display area, and a drive circuit for driving the signal lines. The drive circuit includes at least one of a first drive scheme wherein drive voltages are set smaller as distances between adjacent signal lines corresponding to the drive circuit are shorter, a second drive scheme in which the rising speed of drive waveforms are set smaller as distances between adjacent signal lines corresponding to the drive circuit are shorter, and a third drive scheme in which drive times are set longer as distances between adjacent signal lines corresponding to the drive circuit are shorter.
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Patent Agency Ranking
公开(公告)号：US10297223B2
公开(公告)日：2019-05-21
申请号：US15203959
申请日：2016-07-07
Applicant: Japan Display Inc.
Inventor： Norio Mamba , Takeshi Shibata , Shouji Nagao
Abstract: A display device includes a gate scanning circuit and a driver IC. The driver IC includes a voltage detection circuit for detecting a voltage level of an external power supply, a voltage generation circuit for generating the voltage for driving the gate line, a switching circuit for switching between the output voltage of the voltage generation circuit and the voltage of the external power supply, and a drive circuit. Upon detection of the voltage outside of the predetermined voltage range by the voltage detection circuit, the switching circuit supplies the voltage of the external power supply to the gate scanning circuit. The gate scanning circuit selects all gate lines for outputting the voltage of the external power supply. The drive circuit supplies the GND level to all the source lines.
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公开(公告)号：US10191588B2
公开(公告)日：2019-01-29
申请号：US15188229
申请日：2016-06-21
Inventor： Norio Mamba , Koji Nagata , Koji Hayakawa , Kouichi Anno , Toshiyuki Kumagai , Tsutomu Furuhashi , Hisayoshi Kajiwara
Abstract: A capacitance detection device of a capacitance system includes: a capacitance sensor electrode for detecting a capacitance; a power source for supplying charges to be charged in the capacitance sensor electrode; an electric charge storage capacitor in which an amount of charges to be charged therein changes according to the electric charges charged in the capacitance sensor electrode; and a switch for changing a reference potential of the electric charge storage capacitor. The reference potential of the electric charge storage capacitor is changed in a period of measuring the capacitance.
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公开(公告)号：US20140232684A1
公开(公告)日：2014-08-21
申请号：US14261070
申请日：2014-04-24
Inventor： Norio Mamba , Koji Nagata , Koji Hayakawa
IPC: G06F3/044
CPC classification number: G06F3/0418 , G06F3/044 , G06F3/047
Abstract: A coordinate input device includes: a coordinate input unit having a plurality of first detection electrodes and a plurality of second detection electrodes; an electrode drive circuit that applies a drive signal to one or more of the detection electrodes; a detection circuit that detects a signal of the first and/or second detection electrode; a selection circuit for selecting one or more of the detection electrodes to which the drive signal is not applied from among the detection electrodes which are disposed in parallel to the detection electrodes to which the drive signal is applied, as a reference electrode; a detection circuit for detecting a signal of the selected reference electrode; an input coordinate computing circuit for correcting a detection result of the detection circuit on the basis of the detected capacitance of the reference electrode and for calculating an input coordinate from the corrected detection result.
Abstract translation: 坐标输入装置包括：坐标输入单元，具有多个第一检测电极和多个第二检测电极; 电极驱动电路，其向一个或多个检测电极施加驱动信号; 检测电路，检测第一和/或第二检测电极的信号; 选择电路，用于从与施加驱动信号的检测电极平行设置的检测电极中选择一个或多个不施加驱动信号的检测电极作为参考电极; 用于检测所选择的参考电极的信号的检测电路; 输入坐标计算电路，用于根据检测到的参考电极的电容校正检测电路的检测结果，并根据校正的检测结果计算输入坐标。
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公开(公告)号：US12039130B2
公开(公告)日：2024-07-16
申请号：US18070670
申请日：2022-11-29
Applicant: Japan Display Inc.
Inventor： Mitsuhiro Sugawara , Norio Mamba
CPC classification number: G06F3/04166 , G09G3/2096 , G11C19/28 , G06F3/0412 , G06F3/04184 , G06F3/042 , G06F3/0443 , G09G3/20 , G09G2310/0286 , G09G2310/061
Abstract: A display device includes: pixels arranged in a display region; photodiodes provided in two or more of the pixels, respectively; a shift register circuit configured to sequentially output an output signal to the pixels and the photodiodes; a switching circuit configured to switch coupling between the shift register circuit and the pixels, and coupling between the shift register circuit and the photodiodes; and a control circuit configured to control a display period for display by the pixels and a detection period for detection by the photodiodes in a time division manner. The control circuit is configured to sequentially output a gate drive signal to the pixels by an operation of the shift register circuit and the switching circuit in the display period, and sequentially output a sensor control signal to the photodiodes by an operation of the shift register circuit and the switching circuit in the detection period.
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公开(公告)号：US20170011691A1
公开(公告)日：2017-01-12
申请号：US15203959
申请日：2016-07-07
Applicant: Japan Display Inc.
Inventor： Norio Mamba , Takeshi Shibata , Shouji Nagao
IPC: G09G3/36
CPC classification number: G09G3/3696 , G09G3/3677
Abstract: A display device includes a gate scanning circuit and a driver IC. The driver IC includes a voltage detection circuit for detecting a voltage level of an external power supply, a voltage generation circuit for generating the voltage for driving the gate line, a switching circuit for switching between the output voltage of the voltage generation circuit and the voltage of the external power supply, and a drive circuit. Upon detection of the voltage outside of the predetermined voltage range by the voltage detection circuit, the switching circuit supplies the voltage of the external power supply to the gate scanning circuit. The gate scanning circuit selects all gate lines for outputting the voltage of the external power supply. The drive circuit supplies the GND level to all the source lines.
Abstract translation: 显示装置包括门扫描电路和驱动器IC。 驱动器IC包括用于检测外部电源的电压电平的电压检测电路，用于产生用于驱动栅极线的电压的电压产生电路，用于在电压产生电路的输出电压和电压之间切换的开关电路 的外部电源，以及驱动电路。 当通过电压检测电路检测到预定电压范围之外的电压时，开关电路将外部电源的电压提供给栅极扫描电路。 栅极扫描电路选择用于输出外部电源的电压的所有栅极线。 驱动电路将GND电平提供给所有源极线。
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