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1. 发明专利

JP2008262018A Drive circuit of image display device and image display method 审中-公开
标题翻译：图像显示装置的驱动电路和图像显示方法
公开(公告)号：JP2008262018A
公开(公告)日：2008-10-30
申请号：JP2007104586
申请日：2007-04-12
申请人： Renesas Technology Corp , 株式会社ルネサステクノロジ
发明人： KUROKAWA YOSHIKI , KATAYAMA YUKARI , KUDO YASUYUKI , AKAI RIYOUJIN , SAKAMAKI GORO , AWAKURA HIROMOTO , TAKADA NAOKI
IPC分类号： G09G3/36 , G02F1/133 , G09G3/20 , G09G3/34
摘要： PROBLEM TO BE SOLVED: To provide an image display device achieving electric power saving by decreasing the light emission quantity of a backlight, in which further electric power saving is made possible by reducing the light emission quantity of the backlight when pixels with relatively low luminance are present in a large number and the luminance degrades.
SOLUTION: A drive circuit of an image display device displaying an image by irradiating a display screen with light from a backlight is provided, which has a backlight control section 104 including: a histogram counting section 201 counting display data 208 to obtain a histogram and determining a value at a specified position of the histogram as a selected data value 211; a display data extension section 202 extending the display data 208 based on the selected data value 211; and a backlight voltage regulation section 104 regulating the emission voltage of the backlight based on the selected data value 211. The histogram counting section 201 counts to obtain a weighted histogram by using a weighted value according to the value of the display data 208.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种通过降低背光源的发光量来实现节电的图像显示装置，其中当具有相对的像素时，通过降低背光源的发光量可以进一步节电低亮度存在大量且亮度降低。提供了一种通过用来自背光的光照射显示屏来显示图像的图像显示装置的驱动电路，其具有背光控制部分104，其包括：直方图计数部分201，对显示数据208进行计数，以获得直方图并将直方图的指定位置处的值确定为选择的数据值211; 显示数据扩展部分202，根据所选择的数据值211扩展显示数据208; 以及基于选择的数据值211调节背光的发光电压的背光源电压调节部分104.直方图计数部分201通过使用根据显示数据208的值的加权值来计数以获得加权直方图。
版权所有（C）2009，JPO＆INPIT

2. 发明专利

JP2008181144A Portable electronic equipment and mobile phone 有权
标题翻译：便携式电子设备和移动电话
公开(公告)号：JP2008181144A
公开(公告)日：2008-08-07
申请号：JP2008035697
申请日：2008-02-18
申请人： Renesas Technology Corp , 株式会社ルネサステクノロジ
发明人： TANI KUNIHIKO , YOKOTA YOSHIKAZU , SAKAMAKI GORO , OYAMA TAKASHI
IPC分类号： G09G3/36 , G02F1/133 , G09G3/20
摘要： PROBLEM TO BE SOLVED: To provide portable electronic equipment capable of performing the writing of data for a display RAM on the inner part thereof at a high speed without increasing power consumption.
SOLUTION: The portable electronic equipment is provided with: a latch circuit 160 which makes the bit number of writing data width into the display RAM 140 in a display controller 100 an integral multiple of the writing data width supplied from an external microprocessor 53 or the like and holds a writing data into the display RAM; and a register for setting an operation mode. In a first mode, every time data of a prescribed bit number unit are supplied to the latch circuit from the microprocessor or the like, the data is written into the display RAM. When a second mode is set, the data of the prescribed bit number unit are supplied to a plurality of unit latch circuits from the microprocessor or the like and, thereafter, the data are written into the display RAM on the block.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供能够高速度地在其内部执行用于显示RAM的数据写入的便携式电子设备，而不增加功耗。解决方案：便携式电子设备设置有：锁存电路160，其将显示控制器100中的写入数据宽度的位数量写入显示RAM 140中，从外部微处理器53提供的写数据宽度的整数倍并将写入数据保存在显示RAM中; 以及用于设置操作模式的寄存器。在第一模式中，每当从微处理器等将规定位数单位的数据提供给锁存电路时，数据被写入显示RAM。当设置第二模式时，将规定位数单元的数据从微处理器等提供给多个单元锁存电路，然后将数据写入块中的显示RAM。版权所有（C）2008，JPO＆INPIT

3. 发明专利

JP2008129302A Driving circuit for display device 有权
标题翻译：用于显示设备的驱动电路
公开(公告)号：JP2008129302A
公开(公告)日：2008-06-05
申请号：JP2006313832
申请日：2006-11-21
申请人： Renesas Technology Corp , 株式会社ルネサステクノロジ
发明人： TAKADA NAOKI , KUDO YASUYUKI , KUROKAWA YOSHIKI , SAKAMAKI GORO
IPC分类号： G09G3/36 , G02F1/133 , G09G3/20 , G09G3/34
CPC分类号： G09G3/3413 , G09G3/3406 , G09G5/10 , G09G2320/064 , G09G2320/0646 , G09G2320/0653 , G09G2330/021 , G09G2360/144 , G09G2360/16
摘要： PROBLEM TO BE SOLVED: To provide a driving circuit for a display device that actualizes backlight control with a smaller circuit scale for a histogram system by which a high power reduction rate is expected, and performs the control in combination with other backlight control methods.
SOLUTION: The driving circuit for the display device can use a first backlight control unit 107 by a histogram and a second backlight control unit 108 by an optical sensor in combination, and has a PWM generator 109 which determines a control signal value which is the product of a luminance rate X% and a luminance rate Y% as the luminance rate of a control signal for controlling a back light to backlight maximum luminance, when the luminance rate of a control signal obtained by first backlight control to the backlight maximum luminance is X% and the luminance rate of a control signal obtained by second backlight control to the backlight maximum luminance is Y%.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了提供用于实现具有较小电路规模的用于直方图系统的背光控制的显示装置的驱动电路，通过该系统可以预期高功率降低率，并且与其他背光控制结合进行控制方法。解决方案：用于显示装置的驱动电路可以通过光学传感器通过直方图和第二背光控制单元108使用第一背光控制单元107，并且具有PWM发生器109，PWM发生器109确定控制信号值，是将通过第一背光控制获得的控制信号的亮度率到背光最大值的亮度率X％和亮度率Y％的乘积作为用于控制背光到背光最大亮度的控制信号的亮度率亮度为X％，通过第二背光控制获得的控制信号对背光最大亮度的亮度为Y％。版权所有（C）2008，JPO＆INPIT

4. 发明专利

JP2008070715A Semiconductor integrated circuit and mobile terminal system 审中-公开
标题翻译：半导体集成电路和移动终端系统
公开(公告)号：JP2008070715A
公开(公告)日：2008-03-27
申请号：JP2006250631
申请日：2006-09-15
申请人： Renesas Technology Corp , 株式会社ルネサステクノロジ
发明人： ISHII TATSUYA , MORITA ARATA , AZUMA YURI , SAKAMAKI GORO
IPC分类号： G09G3/36 , G02F1/133 , G09G3/20
CPC分类号： G09G3/2096 , G09G2310/0221
摘要： PROBLEM TO BE SOLVED: To attain cost reduction in the number of external terminals of a liquid crystal drive control device in a mobile terminal system supported and indicated by other case so that one case including the liquid crystal drive control device and two or more displays can be folded via a hinge section, by suppressing increase in the number of output terminals of interface control signals for parallel interface control to a sub-liquid crystal display control device in a semiconductor integrated circuit as the liquid crystal drive control device.
SOLUTION: A host interface circuit (20) includes a 1st serial interface circuit (25) which inputs/outputs a serial data by differential operation, a parallel interface circuit (33), and other interface circuits. When the use of the 1st serial interface circuit is selected to a host interface, the host interface circuit performs parallel outputting of prescribed information input from the 1st serial interface circuit to the outside from the parallel interface circuit, and creates interface control signals (cs, rs, ws) to the parallel outputs, wherein host interface external terminals (SDO, HSYNC, ENABLE) of the other interface circuits are used for dual-use to output the interface control signals.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：解决的问题：为了实现由其他情况支持和指示的移动终端系统中的液晶驱动控制装置的外部端子的数量的成本降低，使得一个壳体包括液晶驱动控制装置和两个或通过抑制作为液晶驱动控制装置的半导体集成电路中的副液晶显示控制装置的并行接口控制的接口控制信号的输出端子数的增加，可以通过铰链部折叠更多的显示器。解决方案：主机接口电路（20）包括通过差分操作输入/输出串行数据的第一串行接口电路（25），并行接口电路（33）和其他接口电路。当主机接口选择使用第一串行接口电路时，主机接口电路从并行接口电路将从第一串行接口电路输入的规定信息并行地输出到外部，并且创建接口控制信号（cs， rs，ws）到并行输出，其中其他接口电路的主机接口外部端子（SDO，HSYNC，ENABLE）用于双重用途以输出接口控制信号。版权所有（C）2008，JPO＆INPIT

5. 发明专利

JP2007213096A Display drive control circuit 审中-公开
标题翻译：显示器驱动控制电路
公开(公告)号：JP2007213096A
公开(公告)日：2007-08-23
申请号：JP2007124186
申请日：2007-05-09
申请人： Renesas Technology Corp , 株式会社ルネサステクノロジ
发明人： SAKAMAKI GORO , OYAMA TAKASHI , OTA SHIGERU , TANABE KEI
IPC分类号： G09G3/36 , G02F1/133 , G09G3/20
摘要： PROBLEM TO BE SOLVED: To suppress power consumption caused by adding a high quality dynamic image display function which has no flicker on a display screen during display of dynamic images.
SOLUTION: The number of times of transfer of dynamic images is reduced by comprising a system I/O bus interface 601 for a still image data, a text data, and the like, and a dynamic image interface (external display interface) 620, providing a display operation change register (DM) 621 and a RAM access change register (RM) 605 which are changed selectively depending on display content (display mode) displayed on a display device, and displaying the display data on the display device via an image memory 610 even in the dynamic image display mode.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：解决的问题：为了抑制在显示动态图像期间在显示画面上添加没有闪烁的高质量动态图像显示功能所引起的功耗。解决方案：通过包括用于静止图像数据的系统I / O总线接口601，文本数据等以及动态图像接口（外部显示接口）来减少动态图像的传送次数， 620，提供根据显示在显示装置上的显示内容（显示模式）选择性地改变的显示操作改变寄存器（DM）621和RAM访问改变寄存器（RM）605，并且经由即使在动态图像显示模式下也是图像存储器610。版权所有（C）2007，JPO＆INPIT

6. 发明专利

JP2007108439A Display drive circuit 审中-公开
标题翻译：显示驱动电路
公开(公告)号：JP2007108439A
公开(公告)日：2007-04-26
申请号：JP2005299332
申请日：2005-10-13
申请人： Renesas Technology Corp , 株式会社ルネサステクノロジ
发明人： TAKADA NAOKI , KUDO YASUYUKI , SAKAMAKI GORO
IPC分类号： G09G3/36 , G09G3/20 , G09G5/00 , H04N1/46 , H04N1/60
CPC分类号： G09G3/2003 , G09G2340/02 , G09G2340/06
摘要： PROBLEM TO BE SOLVED: To attain the cost reduction with size reduction by reducing a data volume in storing display data into a memory in a display driving circuit of a liquid crystal display device etc. SOLUTION: The YUV format to be stored into the memory 106 is selected from A or B based on the comparison of the information on the discrepancy between the color differences (U, V) of horizontal two elements in a format determination section 102 with respect to the RGB data (d1, d2) which are the input and output display data of the memory section 112. The YUV data and the format information (d3) subjected to the YUV format conversion of A or B in a format conversion section 113 is stored into the memory 106. YUV422 (B conversion) is selected as the YUV format conversion of A or B if the information on the discrepancy between the color difference is smaller than the threshold and the conversion (A conversion) obtained by cutting off the lower rank bits of Y, U, V of each element is selected if the information is greater. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：解决方案：通过将存储显示数据的数据量减少到液晶显示装置等的显示驱动电路中的存储器中，通过减小尺寸来实现成本降低。解决方案：将YUV格式转换为基于关于格式确定部分102中的水平两个元素的颜色差异（U，V）与RGB数据（d1，...）之间的差异的信息的比较，从A或B中选择存储器106， d2）作为存储部分112的输入和输出显示数据。在格式转换部分113中经过A或B的YUV格式转换的YUV数据和格式信息（d3）被存储到存储器106中。YUV422 如果色差小于阈值的信息和通过切断Y，U的低等级位获得的转换（A转换），则选择（B转换）作为A或B的YUV格式转换，每个元素的V 如果信息较大，则被选中。版权所有（C）2007，JPO＆INPIT

7. 发明专利

JP2009003457A Display system and mobile phone using the same 有权
标题翻译：显示系统和移动电话使用它
公开(公告)号：JP2009003457A
公开(公告)日：2009-01-08
申请号：JP2008177589
申请日：2008-07-08
申请人： Renesas Technology Corp , 株式会社ルネサステクノロジ
发明人： SAKAMAKI GORO , OYAMA TAKASHI , OTA SHIGERU , TANABE KEI
IPC分类号： G09G3/36 , G02F1/133 , G09G3/20
CPC分类号： G09G5/363 , G09G3/3611 , G09G3/3685 , G09G5/12 , G09G5/393 , G09G5/395 , G09G2310/027 , G09G2320/0247 , G09G2320/0261 , G09G2320/103 , G09G2330/021 , G09G2340/125 , G09G2360/18
摘要： PROBLEM TO BE SOLVED: To provide a display system which causes no flicker on a screen during display of moving pictures and can suppress power consumption due to addition of a high-quality moving picture display function. SOLUTION: The display system incorporates a still-picture-text-system-I/O bus-interface 601 and a moving picture interface (external display interface) 620, includes a display operation switching register (DM)621 and a RAM access switching register (RM) 605 which are selectively switched in accordance with display content (display mode) displayed on a display device, and display data is displayed on the display device via a picture memory 610 even in a moving display mode, whereby the number of times of transfer of moving pictures is reduced. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种在运动图像显示期间在屏幕上不闪烁的显示系统，并且可以抑制由于添加高质量运动图像显示功能而导致的功耗。解决方案：显示系统包括静止图像文本系统I / O总线接口601和运动图像接口（外部显示接口）620，包括显示操作切换寄存器（DM）621和RAM 存储切换寄存器（RM）605，其根据显示在显示装置上的显示内容（显示模式）选择性地切换，并且显示数据即使在移动显示模式下也经由画面存储器610显示在显示装置上，的移动图像的传送次数减少。版权所有（C）2009，JPO＆INPIT

8. 发明专利

JP2008083604A Display drive circuit 有权
标题翻译：显示驱动电路
公开(公告)号：JP2008083604A
公开(公告)日：2008-04-10
申请号：JP2006266147
申请日：2006-09-29
申请人： Renesas Technology Corp , 株式会社ルネサステクノロジ
发明人： AKAI RIYOUJIN , KUDO YASUYUKI , KUROKAWA YOSHIKI , SAKAMAKI GORO , AWAKURA HIROMOTO , TAKADA NAOKI
IPC分类号： G09G3/36 , G02F1/133 , G09G3/20 , G09G3/34 , H04N5/66
CPC分类号： G09G3/3406 , G09G3/3688 , G09G2320/0261 , G09G2320/0613 , G09G2320/0626 , G09G2320/064 , G09G2320/0646 , G09G2340/145 , G09G2360/16
摘要： PROBLEM TO BE SOLVED: To provide a display drive circuit which can attain low power consumption by back-light control, and can also improve visibility during appreciating a moving picture. SOLUTION: In a liquid crystal driver 201 of a liquid crystal display apparatus, a plurality of kinds of expansion rates of display data, two kinds of expansion rates, for example, can be set by a register. Also, these two kinds of expansion rates are made applicable to two kinds of areas (still picture and moving picture) of coordinates prespecified in a liquid crystal panel 202, respectively. As a result, the expansion rates of a pixel value can be made to differ between the still picture area and the moving picture area. Thus, it becomes possible to increase display luminance only in the moving picture area, the low power consumption is compatible with the improvement in visibility. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够通过背光控制实现低功耗的显示驱动电路，并且还可以在欣赏运动画面的同时提高可视性。解决方案：在液晶显示装置的液晶驱动器201中，可以通过寄存器来设置多种显示数据的扩展速率，例如两种扩展速率。此外，这两种扩展速率分别适用于在液晶面板202中预先指定的坐标的两种区域（静止图像和运动图像）。结果，可以使静止图像区域和运动图像区域之间的像素值的扩展速率不同。因此，可以仅在运动图像区域中增加显示亮度，低功耗与可见度的提高兼容。版权所有（C）2008，JPO＆INPIT

9. 发明专利

JP2007188096A Display drive control device 审中-公开
标题翻译：显示器驱动控制装置
公开(公告)号：JP2007188096A
公开(公告)日：2007-07-26
申请号：JP2007031532
申请日：2007-02-13
申请人： Renesas Technology Corp , 株式会社ルネサステクノロジ
发明人： KUROKAWA YASUTO , OTA SHIGERU , TANI KUNIHIKO , SAKAMAKI GORO , YOKOTA YOSHIKAZU
IPC分类号： G09G3/36 , G02F1/133 , G09G3/20 , G09G5/00 , G09G5/36 , H04N5/66
摘要： PROBLEM TO BE SOLVED: To provide a display drive control device which is most suitable for display drive including display with a small amount of change and display with a large amount of change and can realize saving of chip area and reduction of power consumption and cost. SOLUTION: In the display drive control device, memory capacity of an internal display memory (20) is set smaller than the amount of data of one display picture of a display panel (140) as the drive object, and the display data can be transferred with the system in which externally inputted display data is once stored in the display memory (20) and is then sent to a drive circuit (37) to output a drive signal and with the system in which the display data is sent directly to the drive circuit by way of no display memory (20) to output a drive signal. Moreover, both transfer methods can be executed on the time division basis. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种最适合显示驱动的显示驱动控制装置，包括具有少量变化的显示和大量变化的显示，并且可以实现芯片面积的节省和功耗的降低和成本。解决方案：在显示驱动控制装置中，将内部显示存储器（20）的存储器容量设置为小于作为驱动对象的显示面板（140）的一个显示图像的数据量，并且显示数据可以将外部输入的显示数据一旦存储在显示存储器（20）中的系统传送，然后被发送到驱动电路（37）以输出驱动信号，并且与直接发送显示数据的系统通过无显示存储器（20）向驱动电路输出驱动信号。此外，两种传送方法都可以按时间分割的方式执行。版权所有（C）2007，JPO＆INPIT

10. 发明专利

JP2006330551A Liquid crystal drive controller, mobile terminal system, and data processing system 有权
标题翻译：液晶驱动控制器，移动终端系统和数据处理系统
公开(公告)号：JP2006330551A
公开(公告)日：2006-12-07
申请号：JP2005156938
申请日：2005-05-30
申请人： Renesas Technology Corp , 株式会社ルネサステクノロジ
发明人： SAKAMAKI GORO , MORITA ARATA , KANDA KAZUHIKO
IPC分类号： G09G3/36 , G02F1/133 , G09G3/20 , G09G3/34 , H04M1/00 , H04M1/02
CPC分类号： G09G3/3611 , G06F3/1423
摘要： PROBLEM TO BE SOLVED: To reduce signal wiring for exclusive use which connects a liquid crystal driver for sub-display or a peripheral device to a host device. SOLUTION: A liquid crystal drive controller (10) has a host interface circuit (20), a driving circuit (21), and an output port (22) on one semiconductor substrate. The host interface circuit is used for connection to a host device (5). The driving circuit generates and outputs a driving signal of a liquid crystal display (11) on the basis of information inputted to the host interface circuit. The output port is capable of controlling a logical level of an output signal on the basis of information inputted to the host interface circuit. The liquid crystal drive controller can charge itself with a signal distribution function for a circuit subjected to control by a level signal having the logical level determined, such as strobe control to a liquid crystal drive control circuit (12) for sub-display and control to a peripheral device (29) like a camera flash. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了减少用于将用于副显示器的液晶驱动器或外围设备连接到主机设备的专用信号布线。解决方案：液晶驱动控制器（10）在一个半导体衬底上具有主机接口电路（20），驱动电路（21）和输出端口（22）。主机接口电路用于连接到主机设备（5）。驱动电路基于输入到主机接口电路的信息产生并输出液晶显示器（11）的驱动信号。输出端口能够根据输入到主机接口电路的信息来控制输出信号的逻辑电平。液晶驱动控制器可以通过对具有所确定的逻辑电平的电平信号进行控制的电路的信号分配功能进行充电，诸如对液晶驱动控制电路（12）的频闪控制，用于子显示和控制像相机闪光灯的外围设备（29）。版权所有（C）2007，JPO＆INPIT

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