公开(公告)号：US08619009B2

公开(公告)日：2013-12-31

申请号：US13693523

申请日：2012-12-04

Applicant: Renesas Electronics Corporation

Inventor： Yasuhito Kurokawa ,  Kunihiko Tani

IPC: G09G3/36

CPC classification number: G09G3/36 ,  G09G3/2003 ,  G09G3/2011 ,  G09G3/2014 ,  G09G3/3611 ,  G09G3/3648 ,  G09G3/3688 ,  G09G2310/0297 ,  G09G2360/02

Abstract: A display control drive device sequentially reads display data from a display memory in which the display data is stored, produces three primary color image signals that are applied to pixel locations in a dot-matrix color display device, and transmits the signals through a common external output terminal in a time-sharing manner. The display control drive device produces control signals applied to selection switching elements in the display device and that selectively apply an input image signal to any of three source lines. The display control drive device includes: a unit that determines one horizontal period based on a clock received from outside synchronously with display data; and a signal production circuit that produces and transmits the control signals, applied to the selection switching elements, so that the control signals will have a pulse duration equivalent to a time calculated by trisecting one horizontal period.

公开(公告)号：US08941578B2

公开(公告)日：2015-01-27

申请号：US13939975

申请日：2013-07-11

Applicant: Renesas Electronics Corporation

Inventor： Yoshikazu Yokota ,  Kunihiko Tani ,  Gorou Sakamaki ,  Katsuhiko Yamamoto ,  Takashi Yoneoka ,  Kazuhisa Higuchi ,  Kimihiko Sugiyama

IPC: G09G3/36 ,  G09G3/20 ,  G09G5/22

CPC classification number: G09G3/36 ,  G09G3/2096 ,  G09G3/3611 ,  G09G3/3622 ,  G09G3/3644 ,  G09G3/3674 ,  G09G3/3681 ,  G09G3/3696 ,  G09G5/22 ,  G09G5/222 ,  G09G2300/0426 ,  G09G2310/0213 ,  G09G2310/0232 ,  G09G2310/0278 ,  G09G2310/04 ,  G09G2320/066 ,  G09G2320/08 ,  G09G2330/02 ,  G09G2330/021 ,  G09G2330/022 ,  G09G2330/023 ,  G09G2340/0414 ,  G09G2340/0485

Abstract: In conventional liquid crystal display controllers, the display is reduced in the stand-by state but the liquid crystal display duty is not changed, i.e., even the common electrodes of the rows that are not producing display are scanned, and the consumption of electric power is not decreased to a sufficient degree in the stand-by state. A liquid crystal display controller includes a drive duty selection register capable of being rewritten by a microprocessor, and a drive bias selection register. When the display is changed from the whole display on a liquid crystal display panel to a partial display on part of the rows only, the preset values of the drive duty selection register and of the drive bias selection register are changed, so that the display is selectively produced on a portion of the liquid crystal display panel at a low voltage with a low-duty drive.

Abstract translation: 在传统的液晶显示控制器中，显示器在待机状态下被降低，但是液晶显示器的占空比不改变，即使扫描不产生显示器的行的公共电极，并且电力的消耗 在待机状态下没有降低到足够的程度。 液晶显示控制器包括能够由微处理器重写的驱动占空比选择寄存器和驱动偏置选择寄存器。 当显示器从液晶显示面板上的整个显示器改变到仅部分行上的部分显示时，驱动占空比选择寄存器和驱动偏置选择寄存器的预设值被改变，使得显示器 在低负载驱动下以低电压选择性地在液晶显示面板的一部分上产生。

公开(公告)号：US09035977B2

公开(公告)日：2015-05-19

申请号：US14101093

申请日：2013-12-09

Applicant: Renesas Electronics Corporation

Inventor： Yasuhito Kurokawa ,  Kunihiko Tani

IPC: G09G5/10 ,  G09G3/36 ,  G09G3/20

CPC classification number: G09G3/36 ,  G09G3/2003 ,  G09G3/2011 ,  G09G3/2014 ,  G09G3/3611 ,  G09G3/3648 ,  G09G3/3688 ,  G09G2310/0297 ,  G09G2360/02

Abstract: A display control drive device sequentially reads display data from a display memory in which the display data is stored, produces three primary color image signals that are applied to pixel locations in a dot-matrix color display device, and transmits the signals through a common external output terminal in a time-sharing manner. The display control drive device produces control signals applied to selection switching elements in the display device and that selectively apply an input image signal to any of three source lines. The display control drive device includes: a unit that determines one horizontal period based on a clock received from outside synchronously with display data; and a signal production circuit that produces and transmits the control signals, applied to the selection switching elements, so that the control signals will have a pulse duration equivalent to a time calculated by trisecting one horizontal period.

Abstract translation: 显示控制驱动装置从显示数据存储的显示存储器中顺序地读取显示数据，产生应用于点阵彩色显示装置中的像素位置的三原色图像信号，并通过公共外部 输出端子以分时方式进行。 显示控制驱动装置产生施加到显示装置中的选择开关元件的控制信号，并且选择性地将输入图像信号施加到三个源极线中的任一个。 显示控制驱动装置包括：与显示数据同步地基于从外部接收的时钟确定一个水平周期的单元; 以及信号产生电路，其产生并发送施加到选择开关元件的控制信号，使得控制信号将具有等于通过对一个水平周期进行三分段计算的时间的脉冲持续时间。

公开(公告)号：US20140043348A1

公开(公告)日：2014-02-13

申请号：US14024579

申请日：2013-09-11

Applicant: Renesas Electronics Corporation

Inventor： Kunihiko Tani ,  Yoshikazu Yokota ,  Goro Sakamaki ,  Takashi Ohyama ,  Shigeru Ohta ,  Kei Tanabe

IPC: G06T1/60

CPC classification number: G06T1/60 ,  G09G3/3611 ,  G09G3/3685 ,  G09G5/12 ,  G09G5/393 ,  G09G5/395 ,  G09G2310/027 ,  G09G2310/0278 ,  G09G2320/0247 ,  G09G2320/0261 ,  G09G2320/103 ,  G09G2330/021 ,  G09G2340/125 ,  G09G2360/18

Abstract: A display control device and technique for controlling displays on a display unit, in which a plurality of display segments are two-dimensionally arranged (e.g. a dot matrix type display unit), is provided. The technique is effectively applicable to a write data latch circuit of a memory for storing display data in the display control device, such as, for example, a liquid crystal display control device, a mobile electronic apparatus, etc. A display drive control technique for controlling a moving picture display mode of a display device is also provided. The display drive control circuit controls a picture display mode of a display device for displaying still pictures and moving pictures to a liquid crystal display device, such as, for example, a dot matrix type display devices, an organic EL display device, etc.

Abstract translation: 提供了一种显示控制装置和技术，用于在显示单元上控制多个显示段被二维排列（例如，点阵型显示单元）的显示器。 该技术有效地适用于存储显示数据的存储器的写入数据锁存电路，显示控制装置例如是液晶显示控制装置，移动电子设备等。显示驱动控制技术 还提供了控制显示装置的运动图像显示模式。 显示驱动控制电路控制显示装置的图像显示模式，用于将诸如点阵型显示装置，有机EL显示装置等的液晶显示装置的静止图像和运动图像显示。

公开(公告)号：US20130127695A1

公开(公告)日：2013-05-23

申请号：US13693523

申请日：2012-12-04

Applicant: Renesas Electronics Corporation

Inventor： Yasuhito KUROKAWA ,  Kunihiko Tani

IPC: G09G3/36

CPC classification number: G09G3/36 ,  G09G3/2003 ,  G09G3/2011 ,  G09G3/2014 ,  G09G3/3611 ,  G09G3/3648 ,  G09G3/3688 ,  G09G2310/0297 ,  G09G2360/02

Abstract: A display control drive device sequentially reads display data from a display memory in which the display data is stored, produces three primary color image signals that are applied to pixel locations in a dot-matrix color display device, and transmits the signals through a common external output terminal in a time-sharing manner. The display control drive device produces control signals applied to selection switching elements in the display device and that selectively apply an input image signal to any of three source lines. The display control drive device includes: a unit that determines one horizontal period based on a clock received from outside synchronously with display data; and a signal production circuit that produces and transmits the control signals, applied to the selection switching elements, so that the control signals will have a pulse duration equivalent to a time calculated by trisecting one horizontal period.

Abstract translation: 显示控制驱动装置从显示数据存储的显示存储器中顺序地读取显示数据，产生应用于点阵彩色显示装置中的像素位置的三原色图像信号，并通过公共外部 输出端子以分时方式进行。 显示控制驱动装置产生施加到显示装置中的选择开关元件的控制信号，并且选择性地将输入图像信号施加到三个源极线中的任一个。 显示控制驱动装置包括：与显示数据同步地基于从外部接收的时钟确定一个水平周期的单元; 以及信号产生电路，其产生并发送施加到选择开关元件的控制信号，使得控制信号将具有等于通过对一个水平周期进行三分段计算的时间的脉冲持续时间。