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    • 1. 发明申请
    • DISPLAY DEVICE AND METHOD FOR DRIVING SAME
    • 显示装置及其驱动方法
    • US20140028657A1
    • 2014-01-30
    • US14009947
    • 2012-04-04
    • Fumiyuki KobayashiTaketoshi NakanoAsahi YamatoKohji SaitohKen InadaKohzoh TakahashiToshihiro Yanagi
    • Fumiyuki KobayashiTaketoshi NakanoAsahi YamatoKohji SaitohKen InadaKohzoh TakahashiToshihiro Yanagi
    • G09G3/36
    • G09G3/3696G09G3/3648G09G3/3677G09G3/3688G09G2310/0248G09G2310/0291G09G2320/103G09G2330/021G09G2330/022
    • An object of the present invention is to provide (i) a display device which, during a display of a moving image and a still image, reduces electric power consumption without causing a deterioration in display quality, and (ii) a method for displaying the display device. In an intermittent drive mode in which driving and a pause of the driving are repeated, an image identification section (6) identifies an input image (image data (DA)) as a still image or a moving image. In a case where the input image is identified as the moving image, a drive/pause control section (7) generates a drive/pause control signal (DSC) in accordance with a period ratio which is in accordance with the moving image. A timing control section (8) generates a driver control signal so that intermittent driving is carried out. Then, a source driver (3) and a gate driver (4) drives a display section (2) so that the drive period and the pause period are repeated in accordance with a predetermined period ratio, so that the input image (DA) is displayed. The drive/pause control section (7) sets a time ratio between the drive period and the pause period so that the time ratio is variable for each of the moving image and the still image.
    • 本发明的一个目的是提供一种显示装置,其在运动图像和静止图像的显示期间降低电力消耗而不会导致显示质量的劣化,并且(ii)显示装置 显示设备。 在重复驱动和暂停的间歇驱动模式中,图像识别部(6)将输入图像(图像数据(DA))识别为静止图像或运动图像。 在将输入图像识别为运动图像的情况下,驱动/暂停控制部(7)根据与运动图像相应的周期比来生成驱动/暂停控制信号(DSC)。 定时控制部(8)产生驱动控制信号,进行间歇驱动。 然后,源驱动器(3)和栅极驱动器(4)驱动显示部(2),使得根据预定周期比重复驱动周期和暂停时段,使得输入图像(DA)为 显示。 驱动/暂停控制部(7)设定驱动周期和暂停时间之间的时间比,使得运动图像和静止图像中的每一个的时间比是可变的。
    • 8. 发明授权
    • Driving circuit for color image display and display device provided with the same
    • 用于彩色图像显示和显示装置的驱动电路
    • US07411596B2
    • 2008-08-12
    • US10819274
    • 2004-04-07
    • Ken InadaTaketoshi NakanoToshihiro Yanagi
    • Ken InadaTaketoshi NakanoToshihiro Yanagi
    • G09G5/10
    • G09G3/3688G09G2310/0297G09G2320/0242G09G2320/0673
    • In a gradation voltage generation circuit used in a video signal line driving circuit for driving video signal lines of a liquid crystal display device by time division based on switching control signals, a first variable resistor circuit is connected between one terminal of a voltage divider circuit for generating a gradation voltage group and a power source line for supplying a high-level voltage, and a second variable resistor circuit is connected between the other terminal of the voltage divider circuit and a power source line for supplying a low-level voltage. The resistances of the variable resistor circuits are switched based on the switching control signal. Thus, in the periods in which the video signal lines respectively connected to R, G and B pixel formation portions are driven, gradation voltages that are adapted to the gradation reproducibility for R, G and B are outputted respectively.
    • 在用于通过基于切换控制信号分时驱动液晶显示装置的视频信号线的视频信号线驱动电路中使用的灰度电压产生电路中,第一可变电阻电路连接在分压电路的一个端子 产生用于提供高电平电压的灰度电压组和电源线,并且第二可变电阻电路连接在分压器电路的另一个端子和用于提供低电平电压的电源线之间。 基于开关控制信号切换可变电阻电路的电阻。 因此,在分别连接到R,G和B像素形成部分的视频信号线被驱动的时段中,分别输出适用于R,G和B的灰度再现性的灰度电压。
    • 9. 发明授权
    • Display device and method for driving the same
    • 显示装置及其驱动方法
    • US07369124B2
    • 2008-05-06
    • US10786609
    • 2004-02-26
    • Taketoshi NakanoKen InadaTakafumi Kawaguchi
    • Taketoshi NakanoKen InadaTakafumi Kawaguchi
    • G09G5/00
    • G09G3/3688G09G3/3614G09G2310/0297G09G2320/0209G09G2320/0233G09G2330/021
    • A liquid crystal panel (500) is provided with a connection switching circuit (502) for connecting a video signal line driving circuit (300) to a plurality of video signal lines (Ls). The connection switching circuit (502) includes analog switches (SWi) that correspond to the video signal lines (Ls) and one side of each of the analog switches (SWi) is connected to one of the video signal lines (Ls). The video signal lines (Ls) are grouped together into groups of two video signal lines (Ls) that are spaced apart by one video signal line. The groups of video signal lines (Ls) respectively correspond to output terminals (TSj) of the video signal line driving circuit (300). The other sides of the analog switches (SWi) connected to the video signal lines (Ls) of the same group are connected to one another, and connected to one output terminal (TSj). Based on a switching control signal GS, the analog switches (SWi) connect each of the output terminals (TSj) in each horizontal scanning period by time division to the two video signal lines (Ls) of the corresponding group.
    • 液晶面板(500)具有用于将视频信号线驱动电路(300)连接到多个视频信号线(Ls)的连接切换电路(502)。 连接切换电路(502)包括与视频信号线(Ls)对应的模拟开关(SW&lt; i&gt;)和模拟开关(SW&lt; i&gt; )连接到视频信号线(Ls)之一。 视频信号线(Ls)被分组为由一条视频信号线隔开的两条视频信号线(Ls)的组。 视频信号线组(Ls)分别对应于视频信号线驱动电路(300)的输出端(TS SUB)。 连接到相同组的视频信号线(Ls)的模拟开关(SW)的另一侧彼此连接,并连接到一个输出端子(TS < / SUB>)。 基于开关控制信号GS,模拟开关(SW&lt; i&gt;)将每个水平扫描周期中的每个输出端子(TS SUB)连接到两个 视频信号线(Ls)。
    • 10. 发明申请
    • Video Signal Line Drive Circuit, And Display Device Having The Circuit
    • 视频信号线驱动电路和具有电路的显示设备
    • US20070279402A1
    • 2007-12-06
    • US11632056
    • 2005-07-11
    • Ken InadaTakuya TsudaToshihiro Yanagi
    • Ken InadaTakuya TsudaToshihiro Yanagi
    • G09G3/36
    • G09G3/3685G09G3/2059G09G2310/0218G09G2310/027H01L2924/12041
    • The present invention relates to a video signal line drive circuit of a display device. An object of the present invention is to, when gradation conversion is performed in the display device using an error diffusion method, provide a display with a smooth gradation change even at boundaries of display blocks. In an error diffusion operation circuit (36) of a source driver unit (302), an error diffusion process is performed for each pixel based on, in addition to image data (Da) for a display block of the source driver unit (302), image data (Da) for areas near boundaries between the display block of the source driver unit (302) and display blocks of source driver units (301, 303) in previous and subsequent stages. A video signal is generated based on error-diffused image data (Db) generated by the error diffusion process.
    • 本发明涉及一种显示装置的视频信号线驱动电路。 本发明的目的在于,在使用误差扩散方法的显示装置中进行灰度转换时,即使在显示块的边界也提供平滑的灰度变化的显示。 在源极驱动器单元(302)的误差扩散运算电路(36)中,除了源极驱动器单元(302)的显示块的图像数据(Da)之外,还对每个像素进行误差扩散处理, ,用于在源驱动器单元(302)的显示块和前一级和后续级中的源驱动器单元(301,303)的显示块之间的边界附近的区域的图像数据(Da)。 基于由误差扩散处理产生的误差扩散图像数据(Db)产生视频信号。