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1.发明授权Low power consumption data transmission circuit and method, and liquid crystal display apparatus using the same 有权低功耗数据传输电路和方法以及使用其的液晶显示装置公开(公告)号：US06625207B1
公开(公告)日：2003-09-23
申请号：US09408516
申请日：1999-09-30
IPC分类号： H04B138
CPC分类号： H04L25/0272 , H04L25/028 , H04L25/0292
摘要： In a low power consumption data transmission circuit and method, and a liquid crystal display apparatus using the same, 24-bit display data is transmitted from a transceiver circuit to a receiver circuit through a transmission line so that the display data is displayed on a liquid crystal panel. The transceiver circuit has a holding circuit including an 8-stage shift register. The transceiver circuit outputs 24-bit data to the transmission line by use of first and second output circuits when data different from data held in the holding circuit is to be transmitted from the transmission line and outputs data indicative of a hold position in the holding circuit from the second output circuit when the same data as that held in the holding circuit is to be transmitted from the transmission line. When the data indicative of a hold position is transmitted and received, the receiver circuit decodes or restores the received hold position indicating data into 24-bit display data by use of data held in a holding circuit provided in the receiver circuit.
摘要翻译： 在低功耗数据传输电路和方法以及使用该低功耗数据传输电路和方法的液晶显示装置中，通过传输线将24位显示数据从收发器电路传送到接收器电路，使得显示数据显示在液体 水晶面板。 收发电路具有包括8级移位寄存器的保持电路。 当从传输线发送与保持电路中保持的数据不同的数据时，收发器电路通过使用第一和第二输出电路将24位数据输出到传输线，并且在保持电路中输出表示保持位置的数据 当从传输线发送与保持电路中保持的数据相同的数据时，从第二输出电路。 当指示保持位置的数据被发送和接收时，接收器电路通过使用保存在接收器电路中提供的保持电路中的数据来将接收的保持位置指示数据解码或恢复为24位显示数据。
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公开(公告)号：US06392619B1
公开(公告)日：2002-05-21
申请号：US09313251
申请日：1999-05-18
IPC分类号： G09G336
CPC分类号： G09G3/3611 , G09G3/3685
摘要： In a data transfer circuit, a hold signal generating circuit generates and outputs a hold signal Hold when transmission data is equal to transmission data one cycle before, and sets a 3-state output buffer for transmission data to high-impedance state, while, in a data reception circuit, when the hold signal Hold is valid, a data reception circuit outputs the reception data held, thereby power consumption in a data bus which is terminated with a terminal resistor is reduced.
摘要翻译： 在数据传输电路中，保持信号发生电路在传输数据等于发送数据之前一个周期产生并输出保持信号Hold，并将发送数据的3状态输出缓冲器设置为高阻抗状态，而在 数据接收电路，当保持信号保持有效时，数据接收电路输出保持的接收数据，从而减少终端电阻终止的数据总线中的功耗。
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公开(公告)号：US06275207B1
公开(公告)日：2001-08-14
申请号：US09206986
申请日：1998-12-08
IPC分类号： G09G336
CPC分类号： G09G3/2011 , G09G3/3648 , G09G3/3685 , G09G3/3688 , G09G3/3696 , G09G2310/027 , G09G2320/0276 , G09G2320/0606 , G09G2320/0666
摘要： There are provided a liquid crystal driving circuit and a liquid crystal display device in which the display brightness and color variation to input display data values can be adjusted. Input display data of one line period are taken into a latch circuit (1) with a latch signal output from a latch address control circuit, and latch circuit (1) data are taken into a latch circuit (2) at the timing of a line clock. Further, the latch circuit (2) data are input to a decode circuit. In accordance with set data output from a set register which sets the set register setting data with a set register setting clock, a gray-scale voltage which is matched with data of each pixel is selected and output as a selection voltage from the decode circuit. The selection voltage is buffered in an amplifying circuit, and then a liquid crystal applying voltage is output.
摘要翻译： 提供了一种液晶驱动电路和液晶显示装置，其中可以调节显示亮度和对输入显示数据值的颜色变化。 一个行周期的输入显示数据被从闩锁地址控制电路输出的锁存信号插入到锁存电路（1）中，锁存电路（1）在一个线路的定时将数据送入锁存电路（2） 时钟。 此外，锁存电路（2）的数据被输入到解码电路。 根据从设定寄存器输出的设定数据，设定寄存器设定数据与设定寄存器设定时钟，选择与每个像素的数据相匹配的灰度电压，并从解码电路输出作为选择电压。 选择电压被缓冲在放大电路中，然后输出液晶施加电压。
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公开(公告)号：US06448976B1
公开(公告)日：2002-09-10
申请号：US09044522
申请日：1998-03-19
申请人： Hiroyuki Nitta , Atsuhiro Higa , Masashi Nakamura , Tsutomu Furuhashi , Satoru Tsunekawa , Hiroshi Kurihara
发明人： Hiroyuki Nitta , Atsuhiro Higa , Masashi Nakamura , Tsutomu Furuhashi , Satoru Tsunekawa , Hiroshi Kurihara
IPC分类号： G09G502
CPC分类号： G09G3/3685 , G09G2340/0407 , G09G2340/0485
摘要： A liquid crystal drive circuit, which makes it possible to display low resolution display data on a high resolution liquid crystal panel while expanding and/or centering the display data, is provided. A multiscan control signal is inputted to a latch address control circuit and a data control circuit to control latch signals and the display data so as to latch single pixel data into a plurality of latches at the same time. The display data are latched with the expanding and/or centering operation, and outputted in synchronization with a line clock after being converted to gray scale voltages. Accordingly, it is possible to realize the lateral expansion and/or the centering operation. Further, it is also possible to realize a longitudinal expansion by adding a latch circuit between a latch circuit and a liquid crystal applied voltage generation circuit, and by outputting the data in synchronization with an expanded line clock.
摘要翻译： 提供一种液晶驱动电路，其能够在扩大和/或使显示数据居中的同时在高分辨率液晶面板上显示低分辨率显示数据。 多存储控制信号被输入到锁存地址控制电路和数据控制电路，以控制锁存信号和显示数据，以将单个像素数据同时锁存在多个锁存器中。 显示数据以扩展和/或定心操作被锁存，并且在被转换成灰度级电压之后与行时钟同步地输出。 因此，可以实现横向膨胀和/或定心操作。 此外，还可以通过在锁存电路和液晶施加电压产生电路之间添加锁存电路，并且通过与扩展的线时钟同步地输出数据来实现纵向扩展。
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5.发明授权公开(公告)号：US07098881B2
公开(公告)日：2006-08-29
申请号：US10687992
申请日：2003-10-20
IPC分类号： G09G3/36
CPC分类号： G09G3/2011 , G09G3/3614 , G09G3/3688 , G09G2310/0248 , G09G2310/027 , G09G2310/0291
摘要： A fast-write, high picture-quality LCD (Liquid Crystal Display) compatible with a high-resolution, large-sized liquid crystal panel. An output amplifier circuit of a liquid crystal driver circuit includes an amplifier configuration, which functions as an amplifier that amplifies the predetermined gray-scale voltage for output and as an amplifier that buffers the predetermined gray-scale voltage and outputs with no amplification, and a circuit for switching the above two types of amplifiers. In each horizontal period, a liquid crystal panel is driven by the amplified output for a predetermined period and by the buffered output for the rest of the period. A precharge control circuit is provided to check whether the gray-scale voltage is to be amplified depending upon display data.
摘要翻译： 与高分辨率，大尺寸液晶面板兼容的快速写入，高画质液晶（液晶显示）。 液晶驱动器电路的输出放大器电路包括放大器配置，其用作放大用于输出的预定灰度电压的放大器，以及用于缓冲预定灰度电压并且无放大输出的放大器，以及 用于切换上述两种类型的放大器的电路。 在每个水平周期中，液晶面板由放大的输出驱动预定时间段，并且通过缓冲输出在其余时间段内驱动。 提供预充电控制电路以根据显示数据检查灰度电压是否被放大。
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公开(公告)号：US06603468B2
公开(公告)日：2003-08-05
申请号：US09796633
申请日：2001-03-02
IPC分类号： G09G500
CPC分类号： G09G3/3685 , G09G5/008 , G09G2320/0223
摘要： A liquid crystal display device includes a liquid crystal panel; a plurality of data drivers for applying, to the pixel elements, graduation voltages corresponding to the display data; a gate driver for selecting a pixel element to which a graduation voltage is to be applied; and a liquid crystal control circuit for controlling the data drivers on the basis of a transfer clock. Each data driver includes a reproducing circuit for reproducing the transfer clock input to the data driver such that the deviations between the duties of the display data and the transfer clock input to the data driver and the duties of the display data and the transfer clock output from the data driver become small, and for generating a latch clock, and a latch circuit for latching the display data input to the data driver.
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7.发明授权公开(公告)号：US06661402B1
公开(公告)日：2003-12-09
申请号：US09698187
申请日：2000-10-30
IPC分类号： G09G336
CPC分类号： G09G3/2011 , G09G3/3614 , G09G3/3688 , G09G2310/0248 , G09G2310/027 , G09G2310/0291
摘要： A fast-write, high picture-quality LCD (Liquid Crystal Display) compatible with a high-resolution, large-sized liquid crystal panel. An output amplifier circuit of a liquid crystal driver circuit includes an amplifier configuration, which functions as an amplifier that amplifies the predetermined gray-scale voltage for output and as an amplifier that buffers the predetermined gray-scale voltage and outputs with no amplification, and a circuit for switching the above two types of amplifiers. In each horizontal period, a liquid crystal panel is driven by the amplified output for a predetermined period and by the buffered output for the rest of the period. A pre-charge control circuit is provided to check whether the gray-scale voltage is to be amplified depending upon display data.
摘要翻译： 与高分辨率，大尺寸液晶面板兼容的快速写入，高画质液晶（液晶显示）。 液晶驱动器电路的输出放大器电路包括放大器配置，其用作放大用于输出的预定灰度电压的放大器，以及用于缓冲预定灰度电压并且无放大输出的放大器，以及 用于切换上述两种类型的放大器的电路。 在每个水平周期中，液晶面板由放大的输出驱动预定时间段，并且通过缓冲输出在其余时间段内驱动。 提供预充电控制电路以根据显示数据检查灰度电压是否被放大。
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公开(公告)号：US06549182B2
公开(公告)日：2003-04-15
申请号：US09928424
申请日：2001-08-14
IPC分类号： G09G336
CPC分类号： G09G3/2011 , G09G3/3648 , G09G3/3685 , G09G3/3688 , G09G3/3696 , G09G2310/027 , G09G2320/0276 , G09G2320/0606 , G09G2320/0666
摘要： A display device for displaying display data including a display panel; a driving circuit which generates a gray-scale voltage corresponding to the display data and outputs the gray-scale voltage to the display panel; a scan driver which scans a line on the display panel to which the gray-scale voltage is output; and a control circuit which outputs the display data to the driving circuit and outputs a display control signal to the scan driver. A gray-scale display characteristic of the display data is changeable between a first state in which a difference in a brightness of the display panel between two adjacent display data values becomes smaller as a display data gray-scale increases, and a second state in which the difference in the brightness of the display panel between two adjacent display data values becomes larger as the display data gray-scale increases.
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9.发明授权公开(公告)号：US06801178B2
公开(公告)日：2004-10-05
申请号：US09911716
申请日：2001-07-25
IPC分类号： G09G336
CPC分类号： G09G3/2011 , G09G3/2018 , G09G3/3614 , G09G3/3688 , G09G3/3696 , G09G2310/027 , G09G2320/02 , G09G2320/0276
摘要： A liquid crystal driving device for controlling a liquid crystal panel and a liquid crystal display apparatus. Reference voltages are generated in a data driver from input reference voltages, and reference voltages are selected in accordance with the settings of gray scale control registers thereby to control the gray scale voltages. The gray scale control registers can be set using a data bus for transferring the display data from a liquid crystal controller, and the gray scale control operation is performed by the liquid crystal controller in accordance with the image data
摘要翻译： 一种用于控制液晶面板的液晶驱动装置和液晶显示装置。 在数据驱动器中根据输入参考电压产生参考电压，并且根据灰度级控制寄存器的设置选择参考电压，从而控制灰度级电压。 可以使用用于从液晶控制器传送显示数据的数据总线来设置灰度控制寄存器，并且通过液晶控制器根据图像数据执行灰度控制操作
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公开(公告)号：USRE42597E1
公开(公告)日：2011-08-09
申请号：US11980691
申请日：2007-10-31
申请人： Hiroyuki Nitta , Hiroyuki Mano , Tsutomu Furuhashi , Isao Takita , Satoru Tsunekawa , Toshio Futami , Makiko Ikeda
发明人： Hiroyuki Nitta , Hiroyuki Mano , Tsutomu Furuhashi , Isao Takita , Satoru Tsunekawa , Toshio Futami , Makiko Ikeda
IPC分类号： G09G3/36
CPC分类号： G09G3/2011 , G09G3/3614 , G09G3/3655 , G09G3/3688 , G09G3/3696 , G09G2310/0248 , G09G2310/027 , G09G2310/0281 , G09G2310/0289 , G09G2310/0297 , G09G2330/023
摘要： A liquid crystal driver includes a voltage generator for generating gray scale voltages on the basis of reference voltages, and an output device for selecting one gray scale voltage from the generated gray scale voltages in accordance with display data, for applying inversion/non-inversion control to the selected gray scale voltage with respect to an inversion reference voltage on the basis of the selected gray scale voltage, an AC switching signal and the inversion reference voltage, and for outputting different liquid crystal supply voltages for one and the same display data to a liquid crystal panel.
摘要翻译： 液晶驱动器包括：基于参考电压产生灰度电压的电压发生器;以及用于根据显示数据从产生的灰度级电压中选择一个灰度级电压的输出装置，用于施加反相/非反相控制 基于所选择的灰度级电压，AC开关信号和反转参考电压相对于反转参考电压的所选择的灰度级电压，并且将用于一个和相同显示数据的不同液晶电源电压输出到 液晶面板。
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