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1. 发明申请

US20140085280A1 DISPLAY CONTROL DEVICE AND CONTROL METHOD THEREFOR, AND DISPLAY SYSTEM 审中-公开
标题翻译：显示控制装置及其控制方法及显示系统
公开(公告)号：US20140085280A1
公开(公告)日：2014-03-27
申请号：US14119486
申请日：2012-05-24
申请人： SHARP KABUSHIKI KAISHA
发明人： Kohji Saitoh , Asahi Yamato , Masami Ozaki , Toshihiro Yanagi
IPC分类号： G09G5/00
CPC分类号： G09G5/00 , G09G3/20 , G09G3/3648 , G09G2310/0213 , G09G2330/022
摘要： A timing controller (7) controls a display module (2) which carries out a scanning process to display a picture based on a picture signal. The timing controller (7) is configured such that when a display signal reception section (20) no longer receives the picture signal, an operation determination section (21) determines the scanning process should be paused, and a timing generation section (22) instructs drive circuits (4, 5) to pause the scanning process in a display panel (2a).
摘要翻译：定时控制器（7）控制执行基于图像信号显示图像的扫描处理的显示模块（2）。定时控制器（7）被配置为使得当显示信号接收部分（20）不再接收到图像信号时，操作确定部分（21）确定扫描过程应暂停，并且定时产生部分（22）指示驱动电路（4,5），以在显示面板（2a）中暂停扫描处理。

2. 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。

3. 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。

4. 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。

5. 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。

6. 发明授权

US09268437B2 Display device, method for driving display device, and electronic equipment 有权
标题翻译：显示装置，显示装置的驱动方法以及电子设备
公开(公告)号：US09268437B2
公开(公告)日：2016-02-23
申请号：US14492287
申请日：2014-09-22
申请人： Sharp Kabushiki Kaisha
发明人： Kohji Saitoh , Akizumi Fujioka , Masami Ozaki , Toshihiro Yanagi
IPC分类号： G06F3/041 , G06F3/044 , G09G3/36
CPC分类号： G06F3/0416 , G06F3/041 , G06F3/0412 , G06F3/044 , G09G3/3614 , G09G2310/06 , G09G2310/08 , G09G2330/06 , G09G2340/0435
摘要： A display device; a method for driving the display device; and electronic equipment, each enabling a detection device to perform detection with a frequency higher than a refresh frequency of the display device and with improved accuracy are provided. The display device has a screen including pixels and repeatedly alternates between a scanning frame during which the pixels are scanned to be sequentially brought into a selected state and a pause frame during which the pixels are not scanned, and includes a detection instructing circuit configured to output detection operation control signals corresponding to touch panel detection periods to the detection device in at least one pause frame. The detection instruction signal instructs the detection device to detect at least one of detection targets which are input by touching or approaching the screen and a radio wave coming from outside the display device.
摘要翻译：显示装置; 一种用于驱动显示装置的方法; 以及电子设备，每个使得检测装置能够以高于显示装置的刷新频率的频率进行检测并提供精确度。显示装置具有包括像素的画面，并且在扫描像素被顺序地进入选择状态的扫描帧和不扫描像素的暂停帧之间重复地交替显示，并且包括检测指示电路，其被配置为输出在至少一个暂停帧中的与检测装置对应的触摸面板检测周期的检测操作控制信号。检测指示信号指示检测装置检测通过触摸或接近屏幕输入的检测目标中的至少一个以及来自显示装置外部的无线电波。

7. 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。

8. 发明授权

US11112628B2 Liquid crystal display device including common electrode control circuit 有权
公开(公告)号：US11112628B2
公开(公告)日：2021-09-07
申请号：US16609586
申请日：2018-06-08
申请人： SHARP KABUSHIKI KAISHA
发明人： Yuta Ueyama , Masami Ozaki , Hideki Morii
IPC分类号： G02F1/133 , G02F1/1343
摘要： A charge pull-out period is set after power off, and an all-on control signal is set to a high level in the charge pull-out period. A high-level voltage which is output to a scanning line drive circuit formed on a liquid crystal panel is kept at a high level even after power off until a middle of the charge pull-out period. A common electrode control circuit for connecting a common electrode to a ground when the all-on control signal is at the high level and the high-level voltage is at an operation level is configured using two resistors, a NOT circuit, and two FETs, and is provided to a liquid crystal display device. With this, a liquid crystal display device which can lower a common electrode voltage to a ground level when power off and can prevent burn-in after power on is provided.

9. 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.

10. 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。

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