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1. 发明申请

US20190051261A1 DISPLAY PANEL DRIVING APPARATUS AND METHOD FOR COMPENSATING PIXEL VOLTAGE 审中-公开
公开(公告)号：US20190051261A1
公开(公告)日：2019-02-14
申请号：US15671167
申请日：2017-08-08
申请人： HIMAX TECHNOLOGIES LIMITED
发明人： Yih-Long Tseng , Ming-Cheng Chiu
IPC分类号： G09G3/36
CPC分类号： G09G3/3659 , G09G3/3611 , G09G3/3614 , G09G3/3629 , G09G3/3655 , G09G2320/0209 , G09G2320/0285
摘要： A display panel driving apparatus and method are provided. The display panel driving apparatus includes a timing control circuit, a memory, a compensation circuit and a data driving circuit. The memory provides at least one coupling-capacitance information between a current pixel and at least one adjacent pixel in a display panel. By using the coupling-capacitance information, the compensation circuit compensates the current pixel data to obtain the compensated pixel data for compensating the voltage offset of the current pixel caused by the coupling voltage of the adjacent pixel. The data driving circuit drives the current pixel according to the compensated pixel data.

2. 发明申请

US20170337884A1 Semiconductor Device, Display Device, and Electronic Device 审中-公开
公开(公告)号：US20170337884A1
公开(公告)日：2017-11-23
申请号：US15594949
申请日：2017-05-15
申请人： Semiconductor Energy Laboratory Co., Ltd.
发明人： Yoshiyuki KUROKAWA
IPC分类号： G09G3/34 , H01L29/772 , G02F1/136 , G09G3/36
CPC分类号： G09G3/3413 , G02F1/136 , G09G3/2092 , G09G3/3629 , G09G3/3648 , G09G3/367 , G09G2300/0426 , G09G2300/0439 , G09G2300/046 , G09G2300/0857 , G09G2310/0275 , G09G2310/08 , G09G2330/021 , G09G2360/121 , G09G2370/08 , H01L29/772
摘要： A semiconductor device with low power consumption is provided. The semiconductor device includes a controller, a register, and an image processing portion. The image processing portion has a function of processing image data using a parameter. The image processing portion takes the image data from a frame memory and takes the parameter from the register. The frame memory has a function of retaining the image data while power supply is stopped. The register has a function of retaining the parameter while power supply is stopped. The controller has a function of controlling power supply to the register, the frame memory, and the image processing portion.

3. 发明申请

US20170287422A1 LIQUID CRYSTAL APPARATUS 审中-公开
公开(公告)号：US20170287422A1
公开(公告)日：2017-10-05
申请号：US15629867
申请日：2017-06-22
申请人： CITIZEN WATCH CO., LTD.
发明人： Haruki AMAKAWA , Shinya KONDOH
IPC分类号： G09G3/36
CPC分类号： G09G3/3629 , G09G2310/06 , G09G2320/0252 , G09G2320/0285 , G09G2320/041
摘要： A drive circuit has a ferroelectric liquid crystal panel that operates at a given switching angle and response speed, a sensor that measures temperature, a drive circuit that supplies driving voltage to the ferroelectric liquid crystal panel, a waveform generation circuit that supplies a waveform signal to the drive circuit, and a control circuit that controls the waveform generation circuit; and in a first frame of the driving voltage, outputs during a first interval, a first voltage that is positive and outputs during a second interval that is longer than the first interval, a second voltage that is positive, and in a second frame, outputs during the first interval, the first voltage that is negative and outputs during the second interval that is longer than the first interval, the second voltage that is negative. The control circuit varies the first voltage and the second voltage according to the measured temperature.

4. 发明授权

US09741300B2 Liquid crystal apparatus 有权
公开(公告)号：US09741300B2
公开(公告)日：2017-08-22
申请号：US14896697
申请日：2014-07-11
申请人： CITIZEN HOLDINGS CO., LTD.
发明人： Haruki Amakawa , Shinya Kondoh
IPC分类号： G09G3/36
CPC分类号： G09G3/3629 , G09G2310/06 , G09G2320/0252 , G09G2320/0285 , G09G2320/041
摘要： A drive circuit has a ferroelectric liquid crystal panel that operates at a given switching angle and response speed, a sensor that measures temperature, a drive circuit that supplies driving voltage to the ferroelectric liquid crystal panel, a waveform generation circuit that supplies a waveform signal to the drive circuit, and a control circuit that controls the waveform generation circuit; and in a first frame of the driving voltage, outputs during a first interval, a first voltage that is positive and outputs during a second interval that is longer than the first interval, a second voltage that is positive, and in a second frame, outputs during the first interval, the first voltage that is negative and outputs during the second interval that is longer than the first interval, the second voltage that is negative. The control circuit varies the first voltage and the second voltage according to the measured temperature.

5. 发明授权

US09728403B2 Array substrate and manufacturing method thereof 有权
公开(公告)号：US09728403B2
公开(公告)日：2017-08-08
申请号：US14787773
申请日：2015-10-13
申请人： Shenzhen China Star Optoelectronics Technology Co., Ltd. , Wuhan China Star Optoelectronics Technology Co., Ltd.
发明人： Chao He , Guoqiang Tang , Yuan Guo , Juan Li , Yuxia Chen
IPC分类号： H01L27/12 , H01L21/02 , G09G3/20 , G09G3/36
CPC分类号： H01L21/0242 , G02F1/1333 , G02F1/1362 , G02F2001/13685 , G09G3/2092 , G09G3/3611 , G09G3/3629 , G09G2300/0417 , G09G2300/0495 , H01L21/02576 , H01L21/77 , H01L27/12
摘要： The present invention provides an array substrate and a manufacturing method thereof. The manufacturing method of the array substrate according to the present invention forms a gate electrode in the same metal layer with source and drain electrodes and divides a common electrode layer that is conventionally in the form of an entire surface into two portions, of which one serves as a common electrode, while the other portion feeds an input of a gate scan signal thereby eliminating an operation of forming an interlayer insulation layer and thus reducing manufacturing cost of the operation. The array substrate of the present invention comprises a gate electrode that is formed in the same metal layer with source and drain electrodes so that no interlayer insulation layer is present between the gate electrode and the source and drain electrodes, thereby simplifying the structure and reducing the manufacturing cost of the array substrate.

6. 发明授权

US09564099B2 Bistable display systems and methods 有权
标题翻译：双稳态显示系统和方法
公开(公告)号：US09564099B2
公开(公告)日：2017-02-07
申请号：US14643549
申请日：2015-03-10
申请人： Lumotune Inc.
发明人： Matin Esfahani , Hooman Safaee , Mohammad Shafi Ahsan Siddiqi , Aman Muthreja
IPC分类号： G09G3/36
CPC分类号： G09G3/3696 , G09G3/3629 , G09G2330/021
摘要： A bistable display system includes a plurality of pixels arranged in pixel rows and pixel columns. Each pixel has a bistable material between first and second transparent and conductive substrates. A bistable display method includes driving the plurality of pixels having at least one target pixel and at least one non-target pixel and applying a voltage difference across at least one target column and at least one target row to switch the at least one target pixel between transparent and opaque states.
摘要翻译：双稳态显示系统包括以像素行和像素列排列的多个像素。每个像素在第一和第二透明导电基板之间具有双稳态材料。双稳态显示方法包括驱动具有至少一个目标像素和至少一个非目标像素的多个像素，并且在至少一个目标列和至少一个目标行之间施加电压差以在至少一个目标像素之间切换至少一个目标像素透明和不透明状态。

7. 发明授权

US08487856B2 Addressing method for a bistable nematic liquid crystal matrix screen with regulated average quadratic voltage 失效
标题翻译：具有调节平均二次电压的双稳态向列型液晶矩阵屏的寻址方法
公开(公告)号：US08487856B2
公开(公告)日：2013-07-16
申请号：US12296024
申请日：2007-03-20
申请人： Stéphane Joly , Christophe Body , Jean-Denis Laffitte
发明人： Stéphane Joly , Christophe Body , Jean-Denis Laffitte
IPC分类号： G09G3/36 , G02F1/133 , C09K19/02
CPC分类号： G09G3/3637 , G09G3/3629 , G09G2300/0486 , G09G2310/04 , G09G2310/06 , G09G2320/0209 , G09G2320/0233
摘要： A method for addressing a bistable nematic matrix LCD having two stable textures without any applied electric field. Pixel addressing is of the passive multiplex type. The method includes selecting the value of the electrical voltage applied between the substrates so that an average value of the voltage, preferably the average quadratic value, since the initial command for image display up to the time immediately preceding switching, has a predetermined value independent of the information to be displayed, which is the same for all the pixels of the image.
摘要翻译：一种用于寻址具有两个稳定纹理而没有任何施加电场的双稳态向列型LCD的方法。像素寻址是被动多路复用类型。该方法包括选择施加在基板之间的电压的值，使得由于图像显示的初始命令直到切换之前的时间，电压的平均值，优选平均二次值具有与要显示的信息，对于图像的所有像素是相同的。

8. 发明授权

US08482553B2 Drive circuit for driving memory-type liquid crystal 有权
标题翻译：用于驱动记忆型液晶的驱动电路
公开(公告)号：US08482553B2
公开(公告)日：2013-07-09
申请号：US13449887
申请日：2012-04-18
申请人： Hiroyuki Matsuo
发明人： Hiroyuki Matsuo
IPC分类号： G06F3/038 , G09G5/00 , G09G3/36
CPC分类号： G09G3/3629 , G09G2330/023
摘要： In a drive circuit for driving a liquid crystal display element with a memory property, electric charges accumulated in a power-supply smoothing capacitor at the subsequent stage of a booster circuit are collected effectively after electricity is supplied to the liquid crystal display element. The drive circuit for driving the liquid crystal display element with a memory property supplies a boosted voltage to the driver circuit by turning on a first switch circuit while the liquid crystal display element is being reset or while an image is being rendered, and causing electric charges accumulated in the power-supply smoothing capacitor to be discharged while collecting them into a second battery by turning on a second switch circuit during a period in which electric charges accumulated in the power-supply smoothing capacitor should be discharged.
摘要翻译：在用于驱动具有存储特性的液晶显示元件的驱动电路中，在向液晶显示元件提供电力之后，在升压电路的后续级积累在电源滤波电容器中的电荷被有效地收集。用于驱动具有存储特性的液晶显示元件的驱动电路通过在液晶显示元件被复位或图像呈现期间接通第一开关电路而将升压电压提供给驱动电路，并且引起电荷在电源滤波电容器中积累的电力平滑电容器通过在积蓄在电源滤波电容器中的电荷放电的时段期间接通第二开关电路而将其放入第二电池中而放电。

9. 发明申请

US20130076610A1 ENERGY-SAVING METHOD FOR MARKING AN AREA OF A LIQUID CRYSTAL SCREEN 审中-公开
标题翻译：用于标记液晶屏的区域的节能方法
公开(公告)号：US20130076610A1
公开(公告)日：2013-03-28
申请号：US13698987
申请日：2009-10-08
申请人： Ivan Dozov , Francois Leblanc , Jean-Denis Laffitte , Stephane Joly , Philippe Martinot-Lagarde , Jacques Angele
发明人： Ivan Dozov , Francois Leblanc , Jean-Denis Laffitte , Stephane Joly , Philippe Martinot-Lagarde , Jacques Angele
IPC分类号： G09G3/36
CPC分类号： G09G3/3611 , G09G3/2011 , G09G3/3629 , G09G5/08 , G09G2300/0486 , G09G2310/06
摘要： The present invention relates to a method of addressing a bistable matrix screen, in which the following two steps are reiterated:A. a disturbance signal is applied to each pixel of a marking area for a time t1, said disturbance signal being higher than a threshold signal such that each pixel of the area leaves its initial stable state, said disturbance signal being lower than a switching signal such that each pixel of the area having one of the stable states as its initial state does not switch into the other stable state, each pixel of the area then being in an intermediate disturbed state that is intermediate between the two stable states, and thenB. no signal is applied to each pixel of the area for a time t2 to allow each pixel of the area to return to its initial stable state.
摘要翻译：本发明涉及一种寻址双稳矩阵屏幕的方法，其中重复以下两个步骤：A.对于时间t1，将干扰信号施加到标记区域的每个像素，所述干扰信号高于阈值信号，使得该区域的每个像素离开其初始稳定状态，所述干扰信号低于切换信号，使得具有作为其初始状态的一个稳定状态的区域的每个像素不转换到另一个稳定状态，每个该区域的像素处于处于两个稳定状态之间的中间干扰状态，然后是B.对于时间t2，没有信号被施加到该区域的每个像素，以允许区域的每个像素返回到其初始稳定状态。

10. 发明申请

US20120113157A1 LIQUID CRYSTAL DISPLAY DEVICE AND DRIVING METHOD OF THE SAME 审中-公开
标题翻译：液晶显示装置及其驱动方法
公开(公告)号：US20120113157A1
公开(公告)日：2012-05-10
申请号：US13186870
申请日：2011-07-20
申请人： Gee-Bum KIM , Won-Sang Park , Jae-Hyun Kim , Jae-Ik Lim , Jong-In Baek , Yong-Seok Yeo
发明人： Gee-Bum KIM , Won-Sang Park , Jae-Hyun Kim , Jae-Ik Lim , Jong-In Baek , Yong-Seok Yeo
IPC分类号： G09G3/36 , G09G5/02
CPC分类号： G02F1/1334 , G09G3/3629 , G09G3/3648 , G09G2310/0235 , G09G2310/0251 , G09G2310/063
摘要： Embodiments relate to a liquid crystal display (LCD) and a driving method thereof, a driving method of a liquid crystal display (LCD) including a liquid crystal layer having a hysteresis characteristic according to a plurality of voltage curves for a liquid crystal applying voltage versus transmittance includes: applying a reset voltage to the liquid crystal layer before a plurality of gray voltages according to grayscale data of one frame; generating the gray voltages corresponding to one voltage curve selected according to the applied reset voltage among a plurality of curves according to the hysteresis characteristic; and applying the gray voltages to a corresponding region of the liquid crystal layer.
摘要翻译：实施例涉及液晶显示器（LCD）及其驱动方法，液晶显示器（LCD）的驱动方法，液晶显示器（LCD）具有根据多个用于液晶施加电压的电压曲线的滞后特性的液晶层，透射率包括：根据一帧的灰度数据在多个灰度电压之前向液晶层施加复位电压; 根据所述滞后特性，产生对应于根据所施加的复位电压在多个曲线中选择的一个电压曲线的灰度电压; 以及将灰色电压施加到液晶层的相应区域。

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