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公开(公告)号：US20140333608A1
公开(公告)日：2014-11-13
申请号：US14264151
申请日：2014-04-29
发明人： Yosuke Okairi , Kota Kitamura
IPC分类号： G09G3/36
CPC分类号： G09G3/3648 , G09G5/008 , G09G5/12 , G09G2360/18 , G09G2370/08
摘要： There is provided a display driver IC including an image memory which stores display data supplied from a host processor, a timing controller which reads the display data from the image memory and drives a connected display panel, and an internal clock oscillation circuit which supplies an internal clock to the timing controller. An oscillation frequency of the internal clock oscillation circuit is calibrated on the basis of an external clock supplied from an external device. An operation of the host processor which supplies the external clock can be suspended, thereby reducing power consumption of a display apparatus as a whole. Therefore, an expensive oscillation vibrator is not necessary, and thus it is possible to minimize an increase in a cost of the display apparatus.
摘要翻译： 提供了一种显示驱动器IC，其包括存储从主处理器提供的显示数据的图像存储器，从图像存储器读取显示数据并驱动连接的显示面板的定时控制器，以及内部时钟振荡电路， 时钟控制器。 内部时钟振荡电路的振荡频率根据从外部设备提供的外部时钟进行校准。 可以暂停提供外部时钟的主处理器的操作，从而降低显示装置整体的功耗。 因此，不需要昂贵的振荡振荡器，因此可以最小化显示装置的成本增加。
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公开(公告)号：US20140210750A1
公开(公告)日：2014-07-31
申请号：US14166971
申请日：2014-01-29
发明人： Yusuke Uchida , Tatsuya Ishii , Tsuyoshi Kuroiwa , Akihito Akai , Hisayoshi Kajiwara , Kazuo Okado
IPC分类号： G06F3/041
CPC分类号： G06F3/0416 , G06F3/044
摘要： The touch panel controller activates a touch panel having a detection plane superposed on a display plane of a display device, and performs a touch detection. The touch panel controller uses a cycle of 1/n (n is a positive integer) of a display frame cycle on the display plane as the detection frame cycle of the detection plane. The touch panel controller decides an order of driving the detection-scan electrodes in each detection frame cycle according to predetermined phase-delay and phase-advance positions with respect to a display-scan electrode drive position of the display device so as to correspond to an order of the detection-scan electrode array of the touch panel. The touch panel controller makes possible to avoid the coincidence of display-scan and touch-detection positions without thinning touch detections even with the detection frame cycle of a touch sensor shorter than the display frame cycle of a liquid crystal panel.
摘要翻译： 触摸面板控制器激活具有叠加在显示装置的显示平面上的检测平面的触摸面板，并进行触摸检测。 触摸面板控制器使用显示平面上的显示帧周期的1 / n（n为正整数）的周期作为检测平面的检测帧周期。 触摸板控制器根据相对于显示装置的显示扫描电极驱动位置的预定相位延迟和相位提前位置，在每个检测帧周期中决定驱动检测扫描电极的顺序，以对应于 触摸面板的检测扫描电极阵列的顺序。 即使触摸传感器的检测帧周期短于液晶面板的显示帧周期，触摸面板控制器也可以避免显示扫描和触摸检测位置的重合，而不会使触摸检测变薄。
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公开(公告)号：US20150109348A1
公开(公告)日：2015-04-23
申请号：US14502415
申请日：2014-09-30
IPC分类号： G09G5/10
CPC分类号： G09G3/20 , G09G3/3688 , G09G3/3696 , G09G2310/0221 , G09G2320/0276 , G09G2320/0693
摘要： The display device includes display drivers including first and second ones operable to output, based on display data, gradation signals to source lines of display panel regions. The display device is arranged to be able to suppress the variation in output voltage between display drivers while minimizing the increases in chip area of the display drivers and in wiring area of a display panel and keeping high noise resistance. Each display driver can generate gray scale reference voltages for producing gradation signals corresponding to display data. The first display driver can sequentially transmit gray scale reference voltages generated by itself to the second display driver. Based on the transmitted gray scale reference voltages, the second display driver makes the first display driver execute calibration for decreasing the absolute value of difference between gray scale reference voltages generated by the first and second display drivers, or executes the calibration by itself.
摘要翻译： 显示装置包括显示驱动器，包括第一和第二显示驱动器，其可操作以基于显示数据将灰度信号输出到显示面板区域的源极线。 显示装置被布置成能够抑制显示驱动器之间的输出电压的变化，同时最小化显示驱动器的芯片面积的增加以及显示面板的布线区域并保持高的抗噪声性。 每个显示驱动器可以产生用于产生对应于显示数据的灰度信号的灰度参考电压。 第一显示驱动器可以顺序地将自身产生的灰度参考电压发送到第二显示驱动器。 基于发送的灰度参考电压，第二显示驱动器使第一显示驱动器执行校准，以减小由第一和第二显示驱动器产生的灰度参考电压之间的差的绝对值，或者自行执行校准。
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公开(公告)号：US20150022562A1
公开(公告)日：2015-01-22
申请号：US14331612
申请日：2014-07-15
发明人： Keita Tsubakino , Kiichi Makuta , Toshikazu Arai , Yoshinori Ura
CPC分类号： G09G3/3275 , G09G2310/0289 , G09G2360/18 , G09G2370/08
摘要： A gradation voltage corresponding to a display data is input to a signal electrode driving circuit. The signal electrode driving circuit includes a voltage output circuit which outputs a drive voltage corresponding to the input gradation voltage, and a slew rate assist circuit which accelerates a transition of an output voltage of the voltage output circuit. The slew rate assist circuit accelerates the transition of the output voltage after a predetermined time from a start of transition of the gradation voltage.
摘要翻译： 对应于显示数据的灰度电压被输入到信号电极驱动电路。 信号电极驱动电路包括输出对应于输入灰度电压的驱动电压的电压输出电路和加速电压输出电路的输出电压的转变的转换速率辅助电路。 转换速率辅助电路在从渐变电压的转变开始的预定时间之后加速输出电压的转变。
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公开(公告)号：US20140347297A1
公开(公告)日：2014-11-27
申请号：US14283241
申请日：2014-05-21
发明人： Sosuke Tsuji
IPC分类号： G06F3/041
CPC分类号： G06F3/044 , G06F3/0412
摘要： The semiconductor device includes: a display panel (e.g. a liquid crystal display panel) which has a capacitor for holding an electric charge corresponding to image data in quantity in each pixel and displays image data of each frame made up of lines; and a display-drive circuit for activating the display panel. The display-drive circuit performs a time-division action in which a one-frame period includes display-drive periods in which the display panel is activated, and blank periods in which the activation of the display panel remains stopped, which are arranged alternately. The display-drive circuit drives, for display, lines of one frame which are almost evenly distributed to display-drive periods in groups of several lines.
摘要翻译： 半导体器件包括：显示面板（例如液晶显示面板），其具有用于保持与每个像素中的图像数据相对应的电荷的电容器，并显示由线构成的每帧的图像数据; 以及用于启动显示面板的显示驱动电路。 显示驱动电路执行时间分割动作，其中一帧周期包括显示面板被激活的显示驱动时段和交替布置的显示面板的启动保持停止的空白时段。 显示驱动电路用于显示一帧的几行均匀分布到几行的显示驱动周期的行。
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公开(公告)号：US20140313115A1
公开(公告)日：2014-10-23
申请号：US14229657
申请日：2014-03-28
发明人： Satoshi Saito , Kota Kitamura , Hajime Tanabe
IPC分类号： G09G3/36
CPC分类号： G09G3/3677 , G09G3/3648
摘要： A liquid crystal display apparatus includes a liquid crystal display panel having gate lines and source lines, a GIP circuit which drives the gate lines and a source driver IC3 which drives the source lines. The source driver IC3 includes a gate control signal generator which generates gate control signals SOUT1-SOUTn which control the GIP circuit. The gate control signal generator is configured so that it is possible to control the waveforms of the gate control signals SOUT1-SOUTn in software.
摘要翻译： 液晶显示装置包括具有栅极线和源极线的液晶显示面板，驱动栅极线的GIP电路和驱动源极线的源极驱动器IC3。 源极驱动器IC3包括产生控制GIP电路的栅极控制信号SOUT1-SOUTn的栅极控制信号发生器。 门控制信号发生器被配置为使得能够以软件控制门控制信号SOUT1-SOUTn的波形。
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公开(公告)号：US20140253525A1
公开(公告)日：2014-09-11
申请号：US14194698
申请日：2014-03-01
发明人： Isao Munechika
IPC分类号： G09G3/36
CPC分类号： G09G3/3611 , G06F3/0412 , G06F3/0416 , G09G3/3648 , G09G2300/0413 , G09G2320/0233
摘要： One display frame period is divided into one or a plurality of display driving periods and non-display driving periods, and immediately before transition from the non-display driving period to the display driving period, a dummy driving period is inserted. During the dummy driving period, using dummy data changed from display data at the time of driving stop of a signal electrode during the non-display driving period, driving of the signal electrode starts. Thereafter, a display line is selected, and, using the display data corresponding to each display line selected, the signal electrode is driven.
摘要翻译： 一个显示帧周期被分成一个或多个显示驱动周期和非显示驱动周期，并且在从非显示驱动周期转换到显示驱动周期之前，插入虚拟驱动周期。 在虚拟驱动期间，使用在非显示驱动期间在信号电极的驱动停止时从显示数据变化的虚拟数据开始信号电极的驱动。 此后，选择显示行，并且使用与所选择的每个显示行相对应的显示数据来驱动信号电极。
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8.发明申请公开(公告)号：US20140204130A1
公开(公告)日：2014-07-24
申请号：US14157415
申请日：2014-01-16
发明人： Akio SUGIYAMA , Takashi NOSE , Hirobumi FURIHATA
IPC分类号： G09G3/36
CPC分类号： G09G3/20 , G09G2320/0626 , G09G2320/0666 , G09G2320/0693 , G09G2360/145 , G09G2360/16
摘要： A display panel driver includes an image data generator, a brightness correction circuit performing a correction calculation on image data, a drive section driving the display panel in response to corrected image data; and a display timing generator outputting a timing control signal. The correction calculation by the brightness correction circuit is adjustable. When the display panel driver is placed into a test mode, the display timing generator is configured to output an internally-generated timing control signal and the image data generator outputs internally-generated evaluation image data. The evaluation image data are generated so that the evaluation images are switched from one to another in response to the internally-generated timing control signal.
摘要翻译： 显示面板驱动器包括：图像数据生成器，对图像数据执行校正计算的亮度校正电路;响应校正图像数据驱动显示面板的驱动部分; 以及输出定时控制信号的显示定时发生器。 亮度校正电路的校正计算是可调的。 当显示面板驱动器被置于测试模式时，显示定时发生器被配置为输出内部产生的定时控制信号，并且图像数据发生器输出内部产生的评估图像数据。 产生评估图像数据，使得评估图像响应于内部产生的定时控制信号而从一个切换到另一个。
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9.发明申请INTEGRATED CIRCUIT DEVICE INCLUDING A PLURALITY OF INTEGRATED CIRCUITS AND ITS APPLICATION TO PANEL DISPLAY DEVICE 有权集成电路设备，包括一体化集成电路及其应用于面板显示设备公开(公告)号：US20140164806A1
公开(公告)日：2014-06-12
申请号：US14097174
申请日：2013-12-04
发明人： Toshio MIZUNO , Miho Kobayashi , Junpei Sakurai
IPC分类号： G06F1/32
CPC分类号： G06F1/3265 , G09G3/3696 , G09G2330/02 , G09G2330/022 , G09G2330/025 , G09G2330/026 , G09G2330/027 , Y02D10/153 , Y02D50/20
摘要： An integrated circuit device includes first and second integrated circuits and a power supply line. The first integrated circuit includes a first power supply circuit, a timing generation circuit generating a synchronization signal, and a first power supply control section. The second integrated circuit includes a second power supply circuit and a second power supply control section. The power supply line electrically connects the outputs of the first and second power supply circuit. The first and second power supply control sections are each configured to start the operations of the first and second power supply circuits, respectively, in response to a start of a supply of the synchronization signal after a sleep-out command is supplied thereto. The timing generation circuit starts supplying the synchronization signal after a predetermined waiting time elapses after the sleep-out command is supplied to the first integrated circuit.
摘要翻译： 集成电路装置包括第一和第二集成电路和电源线。 第一集成电路包括第一电源电路，产生同步信号的定时产生电路和第一电源控制部分。 第二集成电路包括第二电源电路和第二电源控制部。 电源线将第一和第二电源电路的输出电连接。 第一和第二电源控制部分分别被配置为响应于在向其提供睡眠命令之后开始提供同步信号，分别开始第一和第二电源电路的操作。 在睡眠指令被提供给第一集成电路之后经过预定的等待时间之后，定时产生电路开始提供同步信号。
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10.发明申请IMAGE PROCESSING CIRCUIT FOR IMAGE COMPRESSION AND DECOMPRESSION AND DISPLAY PANEL DRIVER INCORPORATING THE SAME 审中-公开用于图像压缩和分解的图像处理电路和显示面板驱动器公开(公告)号：US20140146098A1
公开(公告)日：2014-05-29
申请号：US14063968
申请日：2013-10-25
发明人： Hirobumi Furihata , Takashi Nose , Akio Sugiyama
CPC分类号： G09G5/00 , G09G3/2092 , G09G3/3648 , G09G2310/027 , G09G2340/02 , G09G2360/16 , G09G2360/18 , H04N19/12 , H04N19/14 , H04N19/17 , H04N19/186
摘要： An image processing circuit includes: a representative-values calculation circuit and an all-combinations comparing compression circuit. The representative-values calculation circuit is configured to generate M datasets each including a plurality of representative values by performing a pre-process on image data associated with said N pixels, M being a natural number more than one and less than N. The all-combinations comparing compression circuit is configured to calculate correlations between two datasets selected from said M datasets for all possible combinations of the two datasets, to select a compression process from a plurality of compression processes in response to the calculated correlations, and to generate said compressed imaged data by compressing said M datasets by using said selected compression process. The image processing circuit may be incorporated in a display panel driver.
摘要翻译： 图像处理电路包括：代表值计算电路和全部组合比较压缩电路。 代表值计算电路被配置为通过对与所述N个像素相关联的图像数据执行预处理来生成M个数据集，每个M个数据集包括多个代表值，M是大于1且小于N的自然数。 组合比较压缩电路被配置为计算从所述M个数据集中选择的两个数据集之间的相关性，以便针对所述两个数据集的所有可能组合，以响应于所计算的相关性从多个压缩过程中选择压缩过程，并且生成所述压缩成像 通过使用所述选择的压缩处理来压缩所述M个数据集的数据。 图像处理电路可以结合在显示面板驱动器中。
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