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1. 发明申请

US20150279333A1 DISPLAY DEVICE AND DRIVE METHOD THEREFOR 有权
标题翻译：显示设备及其驱动方法
公开(公告)号：US20150279333A1
公开(公告)日：2015-10-01
申请号：US14439722
申请日：2013-11-08
申请人： SHARP KABUSHIKI KAISHA
发明人： Kohji Saitoh , Akihisa Iwamoto , Tomohiko Nishimura , Masaki Uehata , Jun Nakata , Masami Ozaki
IPC分类号： G09G5/18 , G09G3/36
CPC分类号： G09G5/18 , G09G3/20 , G09G3/36 , G09G3/3648 , G09G3/3696 , G09G2320/0247 , G09G2320/0285 , G09G2320/046
摘要： In a display device that can use a low frequency drive method, in the case of low frequency drive, in a data correction unit (23) of a display control circuit (200), a pixel grayscale value is set such that the differential value between the potential difference between the pixel electrode and the common electrode when a voltage of positive polarity is applied and the potential difference between the pixel electrode and the common electrode when a voltage of negative polarity is applied becomes larger than during normal drive. With this, a correction amount (shift amount) is made larger during low frequency drive than during normal drive, whereby flickers and ghosting during low frequency drive are prevented.
摘要翻译：在可以使用低频驱动方式的显示装置中，在低频驱动的情况下，在显示控制电路（200）的数据校正部（23）中，设定像素灰度值，当施加正极性的电压时像素电极和公共电极之间的电位差，并且当施加负极性的电压时像素电极和公共电极之间的电位差变得比正常驱动期间更大。由此，在低频驱动期间的校正量（偏移量）比在正常驱动期间更大，从而防止低频驱动期间的闪烁和重影。

2. 发明申请

US20150030116A1 SHIFT REGISTER, DRIVER CIRCUIT AND DISPLAY DEVICE 有权
标题翻译：移位寄存器，驱动电路和显示设备
公开(公告)号：US20150030116A1
公开(公告)日：2015-01-29
申请号：US14383146
申请日：2013-03-05
申请人： Sharp Kabushiki Kaisha
发明人： Satoshi Horiuchi , Shinya Tanaka , Akira Tagawa , Yasuaki Iwase , Takayuki Mizunaga , Akihisa Iwamoto
IPC分类号： G09G3/36 , G11C27/04
CPC分类号： G09G3/3677 , G09G3/3674 , G09G2310/0281 , G09G2310/0286 , G11C19/28 , G11C27/04
摘要： A shift register is configured so that each of first and second intermediate stages includes (i) a first input terminal supplied with a clock signal, (ii) a second input terminal supplied with a clock signal different in phase from the clock signal supplied to the first input terminal, (iii) an output terminal connected to the first input terminal via an output transistor, and (iv) a setting circuit, which is connected to the second input terminal and the output transistor, for setting an electric potential of a control terminal of the output transistor, the second intermediate stage includes a control circuit which is (i) connected to the setting circuit of the second intermediate stage and (ii) supplied with a control signal, an operation period (i) starts at a time when a shift start signal supplied to an initial stage is activated and (ii) ends at a time when an output of a final stage changes from activation to inactivation, and when the clock signal supplied to the first input terminal of the second intermediate stage is initially activated after the operation period starts, the clock signal supplied to the second input terminal of the second intermediate stage is inactive.
摘要翻译：移位寄存器被配置为使得第一和第二中间级中的每一个包括（i）被提供有时钟信号的第一输入端，（ii）被提供有与提供给该时钟信号的时钟信号相位不同的时钟信号的第二输入端第一输入端子，（iii）经由输出晶体管连接到第一输入端子的输出端子，以及连接到第二输入端子和输出晶体管的用于设定控制电位的电位的设定电路输出晶体管的端子，第二中间级包括控制电路，其控制电路（i）连接到第二中间级的设置电路，（ii）提供控制信号，操作周期（i）提供给初始阶段的移位启动信号被激活，并且（ii）在最终级的输出从激活变为非激活的时刻结束，并且当提供给第一输入端的时钟信号在操作周期开始之后，第二中间级的命令被初始化，提供给第二中间级的第二输入端的时钟信号无效。

3. 发明授权

US09530384B2 Display device that compensates for changes in driving frequency and drive method thereof 有权
标题翻译：显示装置，其补偿驱动频率的变化及其驱动方法
公开(公告)号：US09530384B2
公开(公告)日：2016-12-27
申请号：US14439722
申请日：2013-11-08
申请人： Sharp Kabushiki Kaisha
发明人： Kohji Saitoh , Akihisa Iwamoto , Tomohiko Nishimura , Masaki Uehata , Jun Nakata , Masami Ozaki
IPC分类号： G09G5/00 , G09G5/18 , G09G3/20 , G09G3/36
CPC分类号： G09G5/18 , G09G3/20 , G09G3/36 , G09G3/3648 , G09G3/3696 , G09G2320/0247 , G09G2320/0285 , G09G2320/046
摘要： In a display device that can use a low frequency drive method, in the case of low frequency drive, in a data correction unit (23) of a display control circuit (200), a pixel grayscale value is set such that the differential value between the potential difference between the pixel electrode and the common electrode when a voltage of positive polarity is applied and the potential difference between the pixel electrode and the common electrode when a voltage of negative polarity is applied becomes larger than during normal drive. With this, a correction amount (shift amount) is made larger during low frequency drive than during normal drive, whereby flickers and ghosting during low frequency drive are prevented.
摘要翻译：在可以使用低频驱动方式的显示装置中，在低频驱动的情况下，在显示控制电路（200）的数据校正部（23）中，设定像素灰度值，当施加正极性的电压时像素电极和公共电极之间的电位差，并且当施加负极性的电压时像素电极和公共电极之间的电位差变得比正常驱动期间更大。由此，在低频驱动期间的校正量（偏移量）比在正常驱动期间更大，从而防止低频驱动期间的闪烁和重影。

4. 发明申请

US20150269900A1 DISPLAY DEVICE AND METHOD OF DRIVING THE SAME 有权
标题翻译：显示装置及其驱动方法
公开(公告)号：US20150269900A1
公开(公告)日：2015-09-24
申请号：US14435783
申请日：2013-10-11
申请人： SHARP KABUSHIKI KAISHA
发明人： Akihisa Iwamoto , Masami Ozaki , Tomohiko Nishimura , Kohji Saitoh , Masaki Uehata , Jun Nakata
IPC分类号： G09G3/36
CPC分类号： G09G3/3688 , G09G3/3648 , G09G3/3677 , G09G3/3696 , G09G2300/0819 , G09G2300/0876 , G09G2310/0251 , G09G2310/0286 , G09G2330/02 , G09G2330/021 , G09G2330/027 , G11C19/28
摘要： A gate driver (24) which is provided by an IGZO-GDM and a level shifter circuit (13) are connected to each other via a first through a fifth wires (OL1 through OL5). Each wire (OL) is connected to a discharge unit (190). If an electric power supply to a first through a fifth output circuits (OC1 through OC5) in the level shifter circuit (13) becomes lower than a lower operation limit value during a power-off sequence which is supposed to remove a residual charge from inside a panel, outputs from the first through the fifth output circuits (OC1 through OC5) assume a high-impedance state, whereupon a potential on each wire (OL) is drawn by a discharge unit (190) into a ground potential. Therefore, residual charge inside the panel is removed quickly and stably when power supply is shut off.
摘要翻译：由IGZO-GDM和电平移位器电路（13）提供的栅极驱动器（24）经由第一至第五布线（OL1至OL5）彼此连接。每个线（OL）连接到放电单元（190）。如果在电源关闭序列期间电平移位器电路（13）中的第一至第五输出电路（OC1至OC5）的电力供应低于下一个操作限制值，该电源断开序列应该从内部去除剩余电荷一个面板，从第一至第五输出电路（OC1至OC5）的输出呈现高阻抗状态，于是每个导线（OL）上的电位由放电单元（190）吸入地电位。因此，当电源关闭时，面板内的残余电荷被快速稳定地去除。

5. 发明授权

US09666140B2 Display device and method for driving same 有权
公开(公告)号：US09666140B2
公开(公告)日：2017-05-30
申请号：US14650908
申请日：2013-12-06
申请人： Sharp Kabushiki Kaisha
发明人： Jun Nakata , Masami Ozaki , Akihisa Iwamoto , Tomohiko Nishimura , Kohji Saitoh , Masaki Uehata
IPC分类号： G09G3/34 , G09G3/36 , G06K9/00 , G09G3/20
CPC分类号： G09G3/3406 , G06K9/0051 , G09G3/2092 , G09G3/3607 , G09G3/3618 , G09G3/3659 , G09G3/3674 , G09G3/3677 , G09G3/3685 , G09G2310/0286 , G09G2310/0289 , G09G2310/062 , G09G2310/063 , G09G2310/065 , G09G2320/0233 , G09G2320/062 , G09G2320/0666 , G09G2330/022 , G09G2340/0435
摘要： The invention provides a gate-in-panel display device capable of preventing deterioration of thin-film transistors during pause drive, as well as a method for driving the same.At the end of a drive period, an active clear signal is provided to thin-film transistors in unit circuits, each thin-film transistor being connected to either a first or second node at a gate terminal, thereby bringing the thin-film transistors into ON state. As a result, the voltages of the first and second nodes are set to a reference voltage. Thus, even if a pause period lasts for a long period of time, the gate terminals of the thin-film transistors are not subjected to sustained voltage application, leading to no threshold voltage shifts.

6. 发明授权

US09570030B2 Display device and method of driving the same 有权
标题翻译：显示装置及其驱动方法
公开(公告)号：US09570030B2
公开(公告)日：2017-02-14
申请号：US14435783
申请日：2013-10-11
申请人： Sharp Kabushiki Kaisha
发明人： Akihisa Iwamoto , Masami Ozaki , Tomohiko Nishimura , Kohji Saitoh , Masaki Uehata , Jun Nakata
IPC分类号： G09G3/36 , G11C19/28
CPC分类号： G09G3/3688 , G09G3/3648 , G09G3/3677 , G09G3/3696 , G09G2300/0819 , G09G2300/0876 , G09G2310/0251 , G09G2310/0286 , G09G2330/02 , G09G2330/021 , G09G2330/027 , G11C19/28
摘要： A gate driver (24) which is provided by an IGZO-GDM and a level shifter circuit (13) are connected to each other via a first through a fifth wires (OL1 through OL5). Each wire (OL) is connected to a discharge unit (190). If an electric power supply to a first through a fifth output circuits (OC1 through OC5) in the level shifter circuit (13) becomes lower than a lower operation limit value during a power-off sequence which is supposed to remove a residual charge from inside a panel, outputs from the first through the fifth output circuits (OC1 through OC5) assume a high-impedance state, whereupon a potential on each wire (OL) is drawn by a discharge unit (190) into a ground potential. Therefore, residual charge inside the panel is removed quickly and stably when power supply is shut off.
摘要翻译：由IGZO-GDM和电平移位器电路（13）提供的栅极驱动器（24）经由第一至第五布线（OL1至OL5）彼此连接。每个线（OL）连接到放电单元（190）。如果在电源关闭序列期间电平移位器电路（13）中的第一至第五输出电路（OC1至OC5）的电力供应低于下一个操作限制值，该电源断开序列应该从内部去除剩余电荷一个面板，从第一至第五输出电路（OC1至OC5）的输出呈现高阻抗状态，于是每个导线（OL）上的电位由放电单元（190）吸入地电位。因此，当电源关闭时，面板内的残余电荷被快速稳定地去除。

7. 发明授权

US09355606B2 Liquid crystal display device and liquid crystal display device driving method 有权
标题翻译：液晶显示装置及液晶显示装置的驱动方法
公开(公告)号：US09355606B2
公开(公告)日：2016-05-31
申请号：US14375163
申请日：2013-01-25
申请人： Sharp Kabushiki Kaisha
发明人： Kohji Saitoh , Akihisa Iwamoto , Masami Ozaki , Masaki Uehata , Jun Nakata , Tomohiko Nishimura
IPC分类号： G06F3/038 , G09G5/00 , G09G3/36 , G09G3/04 , G02F1/1343 , G02F1/1362 , G02F1/1368 , G02F1/1333
CPC分类号： G09G3/3655 , G02F1/1343 , G02F1/136213 , G02F1/136286 , G02F1/1368 , G02F2001/133397 , G09G3/3648 , G09G3/3674 , G09G3/3685 , G09G3/3688 , G09G2300/0478 , G09G2310/0245 , G09G2310/067 , G09G2320/046 , G09G2330/027
摘要： A liquid crystal display device includes: a data signal line; a scan signal line; a pixel electrode; a transistor connected to (i) the data signal line, (ii) the scan signal line, and (iii) the pixel electrode; and a common electrode, the liquid crystal display device being configured to turn on the transistor during a power-off sequence by causing a change in an electric potential of the scan signal line, the electric potential of the scan signal line reaching a first electric potential at a first timing after the change is initiated, and the common electrode being in an electrically floating state at a second timing which comes after the first timing. This, in a case where the transistor is turned on in preparation for an operation to turn off a power source of the liquid crystal display device, makes it unlikely for a DC voltage to be applied across a pixel even if potential variation (kickback) occurs at the pixel electrode in reaction to a change in status of the transistor from an on state to an off state.
摘要翻译：液晶显示装置包括：数据信号线; 扫描信号线; 像素电极; 连接到（i）数据信号线的晶体管，（ii）扫描信号线，和（iii）像素电极; 和公共电极，所述液晶显示装置被配置为通过使所述扫描信号线的电位发生变化而在断电序列期间导通所述晶体管，所述扫描信号线的电位达到第一电位在变化开始之后的第一定时，并且公共电极在第一定时之后的第二定时处于电浮动状态。这是为了准备关闭液晶显示装置的电源的操作而导通晶体管的情况，即使发生电位变化（反冲）也不可能在像素上施加直流电压在晶体管的状态从导通状态到断开状态的反应中，在像素电极处。

8. 发明申请

US20150042636A1 LIQUID CRYSTAL DISPLAY DEVICE AND LIQUID CRYSTAL DISPLAY DEVICE DRIVING METHOD 审中-公开
标题翻译：液晶显示装置和液晶显示装置驱动方法
公开(公告)号：US20150042636A1
公开(公告)日：2015-02-12
申请号：US14375444
申请日：2013-01-28
申请人： Sharp Kabushiki Kaisha
发明人： Kohji Saitoh , Akihisa Iwamoto , Jun Nakata , Masaki Uehata , Tomohiko Nishimura , Masami Ozaki
IPC分类号： G02F1/133 , G09G3/36 , H01L27/12 , G02F1/1368 , G02F1/1362
CPC分类号： G02F1/13306 , G02F1/136277 , G02F1/136286 , G02F1/1368 , G09G3/3614 , G09G3/3648 , G09G3/3655 , G09G3/3674 , G09G2310/0243 , G09G2310/067 , G09G2320/0204 , G09G2330/027 , H01L27/1225
摘要： The present invention is intended to make it unlikely that, in a case where a transistor is turned on in preparation for an operation to turn off a power source of a liquid crystal display device, a DC voltage becomes applied across a pixel even if potential variation (kickback) occurs at a pixel electrode in reaction to a change in status of the transistor from an on state to an off state. A liquid crystal display device of the present invention includes: a data signal line; a scan signal line; a pixel electrode; a transistor connected to (i) the data signal line, (ii) the scan signal line, and (iii) the pixel electrode; and a common electrode, the liquid crystal display device being configured to turn on the transistor during a power-off sequence by causing a change in an electric potential of the scan signal line, the electric potential of the scan signal line increasing up to a first electric potential at a first timing after the change is initiated, and an output electric potential supplied to the data signal line at a second timing which comes after the first timing being set to a value higher than an output electric potential supplied to the common electrode at the second timing.
摘要翻译：本发明旨在使得在准备关闭液晶显示装置的电源的操作的晶体管导通的情况下不可能，即使电位变化，直流电压也被施加到像素上（反冲）发生在像素电极处，以反应晶体管的状态从接通状态到断开状态的变化。本发明的液晶显示装置包括：数据信号线; 扫描信号线; 像素电极; 连接到（i）数据信号线的晶体管，（ii）扫描信号线，和（iii）像素电极; 和公共电极，所述液晶显示装置被配置为通过使所述扫描信号线的电位发生变化而在断电序列期间导通所述晶体管，所述扫描信号线的电位增加到第一在开始改变之后的第一定时处的电位，以及在第一定时之后的第二定时处被提供给数据信号线的输出电位被设置为高于提供给公共电极的输出电位的值第二个时机。

9. 发明申请

US20150009195A1 LIQUID CRYSTAL DISPLAY DEVICE AND LIQUID CRYSTAL DISPLAY DEVICE DRIVING METHOD 有权
标题翻译：液晶显示装置和液晶显示装置驱动方法
公开(公告)号：US20150009195A1
公开(公告)日：2015-01-08
申请号：US14375163
申请日：2013-01-25
申请人： Sharp Kabushiki Kaisha
发明人： Kohji Saitoh , Akihisa Iwamoto , Masami Ozaki , Masaki Uehata , Jun Nakata , Tomohiko Nishimura
IPC分类号： G09G3/36 , G02F1/1362 , G02F1/1343 , G02F1/1368
CPC分类号： G09G3/3655 , G02F1/1343 , G02F1/136213 , G02F1/136286 , G02F1/1368 , G02F2001/133397 , G09G3/3648 , G09G3/3674 , G09G3/3685 , G09G3/3688 , G09G2300/0478 , G09G2310/0245 , G09G2310/067 , G09G2320/046 , G09G2330/027
摘要： A liquid crystal display device includes: a data signal line; a scan signal line; a pixel electrode; a transistor connected to (i) the data signal line, (ii) the scan signal line, and (iii) the pixel electrode; and a common electrode, the liquid crystal display device being configured to turn on the transistor during a power-off sequence by causing a change in an electric potential of the scan signal line, the electric potential of the scan signal line reaching a first electric potential at a first timing after the change is initiated, and the common electrode being in an electrically floating state at a second timing which comes after the first timing. This, in a case where the transistor is turned on in preparation for an operation to turn off a power source of the liquid crystal display device, makes it unlikely for a DC voltage to be applied across a pixel even if potential variation (kickback) occurs at the pixel electrode in reaction to a change in status of the transistor from an on state to an off state.
摘要翻译：液晶显示装置包括：数据信号线; 扫描信号线; 像素电极; 连接到（i）数据信号线的晶体管，（ii）扫描信号线，和（iii）像素电极; 和公共电极，所述液晶显示装置被配置为通过使所述扫描信号线的电位发生变化而在断电序列期间导通所述晶体管，所述扫描信号线的电位达到第一电位在变化开始之后的第一定时，并且公共电极在第一定时之后的第二定时处于电浮动状态。这是为了准备关闭液晶显示装置的电源的操作而导通晶体管的情况，即使发生电位变化（反冲）也不可能在像素上施加直流电压在晶体管的状态从导通状态到断开状态的反应中，在像素电极处。

10. 发明授权

US10989958B2 Display device comprising a control substrate configured to control drive of display pixels 有权
公开(公告)号：US10989958B2
公开(公告)日：2021-04-27
申请号：US16818122
申请日：2020-03-13
申请人： SHARP KABUSHIKI KAISHA
发明人： Akihisa Iwamoto
IPC分类号： G02F1/13357 , G09G3/34 , G09G3/36
摘要： A display device includes a display panel in which display pixels including colored pixels of a plurality of colors are arranged, an illumination device including a light source and configured to illuminate the display panel with light, and a control substrate configured to control drive of the display pixels, wherein the control substrate includes a display data generation circuit configured to generate display data for driving the display pixels, based on image data supplied from an external image signal supply source, a detection circuit configured to detect a change in luminance light modulation data for modulating luminance of the light source, supplied from an external image signal supply source, and a display data correction circuit configured to correct the display data, based on an output value of the detection circuit.

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