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公开(公告)号:US20080303758A1
公开(公告)日:2008-12-11
申请号:US12131202
申请日:2008-06-02
申请人: Yoshihisa Ooishi , Junichi Maruyama , Takashi Shoji , Kikuo Ono
发明人: Yoshihisa Ooishi , Junichi Maruyama , Takashi Shoji , Kikuo Ono
IPC分类号: G09G3/34
CPC分类号: G09G3/2033 , G09G3/2037 , G09G3/36 , G09G3/3611 , G09G5/399 , G09G2340/02 , G09G2360/18
摘要: High-order bits to be utilized for current-frame display data and previous-frame display data, and low-order bits to be utilized for the current-frame display data alone are stored in independently controllable memory areas. For reading the current-frame display data from a frame memory, data of the high-order bits and data of the low-order bits are read. For reading the previous-frame data, the high-order bits alone are read. Thus, since a period during which the data of the low-order bits that is not utilized for the previous-frame display data is stored in the memory is shortened, a required memory capacity can be reduced. The data transfer time can be reduced by the time required for memory read for the data of the low-order bits that is not utilized for the previous-frame display data.
摘要翻译: 用于当前帧显示数据和前一帧显示数据的高位数,以及仅用于当前帧显示数据的低位比特存储在独立可控存储区域中。 为了从帧存储器读取当前帧显示数据,读取高位数据和低位数据的数据。 为了读取前一帧数据,只读取高位。 因此,由于缩短了对前一帧显示数据未被利用的低位数据的数据存储在存储器中的时段,所以可以减少所需的存储器容量。 数据传输时间可以减少对于未用于前一帧显示数据的低位的数据的存储器读取所需的时间。
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公开(公告)号:US20080030514A1
公开(公告)日:2008-02-07
申请号:US11622023
申请日:2007-01-11
申请人: Yoshihisa Ooishi , Junichi Maruyama , Kikuo Ono
发明人: Yoshihisa Ooishi , Junichi Maruyama , Kikuo Ono
CPC分类号: G06T1/60 , G09G3/2025 , G09G3/3648 , G09G2310/0251 , G09G2320/0247 , G09G2320/0261 , G09G2320/0276 , G09G2340/0435
摘要: There is disclosed a display device which is driven by a two-field drive scheme. That is, brightness corresponding to one frame of image is obtained in two scans. The display screen is divided into plural regions. One of the regions is driven by a black insertion method. The other region is driven by a pseudo-normal drive method. In this method, an image based on the same display data is displayed twice. The display data is converted such that the gamma characteristics of the pseudo-normally driven region are substantially equal to the gamma characteristics of the region driven by the black insertion method. If necessary, each individual pixel in the boundary region between the region driven by the black insertion method and the region driven by the pseudo-normal drive method is displayed black or white. The boundary region has a width of at least two pixels.
摘要翻译: 公开了一种由双场驱动方式驱动的显示装置。 也就是说,在两次扫描中获得与一帧图像相对应的亮度。 显示屏分为多个区域。 其中一个区域由黑色插入法驱动。 其他区域由伪正常驱动方式驱动。 在该方法中,基于相同显示数据的图像被显示两次。 显示数据被转换成使得伪正常驱动区域的伽马特性基本上等于由黑色插入方法驱动的区域的伽马特性。 如果需要,由黑色插入方法驱动的区域和由伪正常驱动方法驱动的区域之间的边界区域中的每个像素被显示为黑色或白色。 边界区域具有至少两个像素的宽度。
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公开(公告)号:US07847771B2
公开(公告)日:2010-12-07
申请号:US11279598
申请日:2006-04-13
申请人: Junichi Maruyama , Hiroyuki Nitta , Yoshihisa Ooishi , Kikuo Ono
发明人: Junichi Maruyama , Hiroyuki Nitta , Yoshihisa Ooishi , Kikuo Ono
IPC分类号: G09G3/36
CPC分类号: G09G3/2022 , G09G3/3688 , G09G2320/0252 , G09G2320/0261 , G09G2320/0276 , G09G2340/16
摘要: A speed doubling circuit receiving display data in one frame period and outputting field A display data and field B display data in one frame period. A field conversion circuit converts the field A display data to have a highest gray-scale if the display data has a high gray-scale, and converts the field B display data to have a lowest gray-scale if the display data has a low gray-scale. Between the speed doubling circuit and field conversion circuit, an emphasis circuit is disposed which emphasizes each of the field A display data and field B display data in accordance with the display data one frame period before and the display data in the present frame period.
摘要翻译: 在一个帧周期中接收显示数据并在一个帧周期中输出字段A显示数据和字段B显示数据的加倍电路。 如果显示数据具有高灰阶,则场转换电路将场A显示数据转换为具有最高灰度,并且如果显示数据具有低灰度,则将场B显示数据转换为具有最低灰度 -规模。 在倍速电路和场转换电路之间,设置强调电路,其根据前一帧周期的显示数据和当前帧周期中的显示数据强调场A显示数据和场B显示数据中的每一个。
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公开(公告)号:US20090085856A1
公开(公告)日:2009-04-02
申请号:US12139598
申请日:2008-06-16
申请人: Yuuki OKADA , Kikuo Ono , Yoshihisa Ooishi , Junichi Maruyama
发明人: Yuuki OKADA , Kikuo Ono , Yoshihisa Ooishi , Junichi Maruyama
IPC分类号: G09G3/36
CPC分类号: G09G3/3648 , G09G2320/0252 , G09G2320/0261 , G09G2340/16
摘要: An overdrive device corrects IN data by referring to a look-up table based on IN data, ODA data outputted from the look-up table, which is previous by one frame and ODB data outputted from the look-up table, which is previous by two frames.
摘要翻译: 过驱动装置通过参照查询表来查询IN数据,该查找表基于IN数据,从查找表输出的ODA数据,其前面是一帧,并且从查找表输出的ODB数据, 两帧。
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公开(公告)号:US20080198185A1
公开(公告)日:2008-08-21
申请号:US12028099
申请日:2008-02-08
IPC分类号: G09G5/02
CPC分类号: G09G3/2025 , G09G2300/0452 , G09G2340/0407 , G09G2340/0457
摘要: A signal converter to make a display module conduct an n-ply display operation divides one frame period of input display data into n subframes to obtain n-ply display data, shifts the sampling position for each n-ply display data, samples the data to convert resolution thereof, rearranges in n ways a combination of subpixels included in each pixel of output display data resultant from the sampling, and varying the sampling position and the combination of subpixels for each subframe in a cooperative fashion.
摘要翻译: 使显示模块进行n层显示操作的信号转换器将输入显示数据的一帧周期划分为n个子帧以获得n层显示数据,移位每个n层显示数据的采样位置,将数据采样到 转换其分辨率,以n个方式重新排列由采样产生的输出显示数据的每个像素中包括的子像素的组合,并且以协作的方式改变每个子帧的采样位置和子像素的组合。
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公开(公告)号:US08446356B2
公开(公告)日:2013-05-21
申请号:US12572383
申请日:2009-10-02
IPC分类号: G09G3/36
CPC分类号: G09G3/3611 , G09G3/2011 , G09G3/2025 , G09G3/2081 , G09G3/3406 , G09G2320/0261 , G09G2320/0271 , G09G2320/0646 , G09G2340/0435 , G09G2360/16 , H04N7/0132
摘要: The display device including: a display panel; a backlight; a memory for converting frame rate of an input video signal and outputting a video signal; an interpolation frame generation unit for generating an interpolation frame based on the video signal output from the memory; a histogram generator for generating a histogram based on the input video signal; and a backlight brightness calculation unit for calculating a backlight control signal, the display device further comprising: wherein image data for display, which is obtained by an N-th frame of the input video signal, and image data of the interpolation frame generated based on the N-th frame and an (N+1)-th frame of the input video signal, is input to the display panel; and wherein the backlight control signal calculated based on the histogram generated based on the image data of the N-th frame is used for displaying the image data for display.
摘要翻译: 该显示装置包括:显示面板; 背光; 用于转换输入视频信号的帧速率并输出视频信号的存储器; 内插帧生成单元,用于基于从存储器输出的视频信号来生成内插帧; 直方图生成器,用于基于输入视频信号生成直方图; 以及用于计算背光控制信号的背光亮度计算单元,所述显示装置还包括:其中通过所述输入视频信号的第N帧获得的用于显示的图像数据和基于所述输入视频信号生成的内插帧的图像数据 输入视频信号的第N帧和第(N + 1)帧被输入到显示面板; 并且其中基于基于第N帧的图像数据生成的直方图计算的背光控制信号用于显示用于显示的图像数据。
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公开(公告)号:US20090122087A1
公开(公告)日:2009-05-14
申请号:US12262244
申请日:2008-10-31
申请人: Junichi MARUYAMA , Yoshihisa Ooishi , Yuki Okada , Takashi Shoji , Kikuo Ono , Ikuko Imajo , Masashi Baba
发明人: Junichi MARUYAMA , Yoshihisa Ooishi , Yuki Okada , Takashi Shoji , Kikuo Ono , Ikuko Imajo , Masashi Baba
CPC分类号: G09G3/3611 , G09G3/3413 , G09G3/3426 , G09G2310/024 , G09G2310/08 , G09G2320/0238 , G09G2320/0242 , G09G2320/0261 , G09G2320/0271 , G09G2320/0606 , G09G2320/0633 , G09G2320/064 , G09G2320/0646 , G09G2320/103 , G09G2330/021 , G09G2330/025 , G09G2330/06 , G09G2360/144 , G09G2360/16
摘要: There is provided a display device capable of delivering adequate video display performance even when a lighting period of a backlight is varied in accordance with the content or the like of image data. The device has circuits (8050, 8060) for varying a lighting period of a backlight (8090) for illuminating a display panel (8010) in accordance with image data (8002), setting information (8003), and the like from an external device; and circuits (8070, 8080) for adjusting the timing of start (and turning off) of lighting of the backlight in accordance with the length of the lighting period.
摘要翻译: 提供了即使当根据图像数据的内容等改变背光的照明周期时,能够提供足够的视频显示性能的显示装置。 该装置具有用于根据图像数据(8002)照亮显示面板(8010),从外部设备(8002),设置信息(8003)等改变用于照明的照明周期的电路(8050,8060) ; 以及用于根据照明周期的长度来调节背光的点亮的开始(和关闭)的定时的电路(8070,8080)。
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公开(公告)号:US20070247413A1
公开(公告)日:2007-10-25
申请号:US11739335
申请日:2007-04-24
申请人: Junichi Maruyama , Yoshihisa Ooishi , Kikuo Ono
发明人: Junichi Maruyama , Yoshihisa Ooishi , Kikuo Ono
IPC分类号: G09G3/36
CPC分类号: G09G3/2011 , G09G3/2014 , G09G2310/0251 , G09G2320/0247 , G09G2320/0257 , G09G2320/0261 , G09G2320/0285
摘要: A display device includes an LUT storing circuit and an LUT holding circuit, a representative point selecting circuit, and a compensation amount calculating circuit. The storing and holding circuits store and hold not compensation amounts of all points but compensation amounts of representative points in a lookup table. The representative point selecting circuit refers to a compensation amount for a representative point in the lookup table and three representative points neighboring an interpolating object point for deriving a compensation amount of each interpolating object point except the representative points in the lookup table. The compensation amount calculating circuit calculates the compensation amount of each interpolating point except the representative points by performing an interpolating operation with respect to the compensation amounts of the three neighboring representative points.
摘要翻译: 显示装置包括LUT存储电路和LUT保持电路,代表点选择电路和补偿量计算电路。 存储和保持电路存储和保持查找表中的所有点的补偿量,而代表点的补偿量。 代表点选择电路是指查找表中的代表点的补偿量和与内插对象点相邻的三个代表点,用于导出除了查找表中的代表点之外的每个内插对象点的补偿量。 补偿量计算电路通过对三个相邻代表点的补偿量进行内插操作来计算除了代表点之外的每个内插点的补偿量。
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公开(公告)号:US08310437B2
公开(公告)日:2012-11-13
申请号:US12625655
申请日:2009-11-25
申请人: Junichi Maruyama , Koji Hosogi , Yoshihisa Ooishi , Misa Owa , Kikuo Ono
发明人: Junichi Maruyama , Koji Hosogi , Yoshihisa Ooishi , Misa Owa , Kikuo Ono
IPC分类号: G09G3/36
CPC分类号: G09G3/3426 , G02F1/133603 , G09G3/3413 , G09G2310/024 , G09G2320/0242 , G09G2320/0247 , G09G2320/0261 , G09G2320/0606 , G09G2320/0633 , G09G2320/064 , G09G2320/0666 , G09G2320/103 , G09G2330/02 , G09G2330/021 , G09G2360/16
摘要: The backlight device includes: a backlight including a plurality of light sources; and a backlight control part. The backlight includes a plurality of divided areas, and light sources disposed in each of the plurality of divided areas are chain-connected. The backlight control part includes at least one backlight control unit for controlling turning on and off of the backlight which includes the plurality of divided areas, with respect to the each divided area. The backlight control unit includes a selection unit for selecting one of divided areas, at least one backlight drive path. The selection unit selects the one of divided areas in a time division manner, and the light sources of the one of divided areas are driven by sharing the at least one backlight drive path in common.
摘要翻译: 背光装置包括:背光源,包括多个光源; 和背光控制部。 背光源包括多个分割区域,并且配置在多个分割区域的每一个中的光源链接。 背光控制部分包括至少一个背光控制单元,用于相对于每个划分的区域控制包括多个划分区域的背光源的导通和关闭。 背光控制单元包括:选择单元,用于选择分割区域中的一个,至少一个背光驱动路径。 选择单元以时分方式选择分割区域中的一个,并且通过共享至少一个背光驱动路径来驱动分割区域中的一个的光源。
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公开(公告)号:US08026885B2
公开(公告)日:2011-09-27
申请号:US11951403
申请日:2007-12-06
申请人: Junichi Maruyama , Yoshihisa Ooishi , Kikuo Ono , Takashi Shoji
发明人: Junichi Maruyama , Yoshihisa Ooishi , Kikuo Ono , Takashi Shoji
CPC分类号: G09G3/2025 , G09G2310/061
摘要: A display device and system are disclosed, wherein the display system is so configured that an n-fold rate increasing circuit is arranged with a signal generating device instead of with the display device to realize a low-cost n-fold rate impulse-type drive. The n-fold rate display data is output to the display device from the signal generating device, and the display device includes a circuit to subject the input n-fold rate display data to the data conversion process for the n-fold rate impulse drive. In addition to the n-fold rate display data, an identification signal for identifying the position of the turn of the frames of the original video signal is input to the display device to prevent the erroneous data conversion operation.
摘要翻译: 公开了一种显示装置和系统,其中显示系统被配置为使得n倍率增加电路与信号发生装置而不是显示装置一起布置,以实现低成本的n倍率脉冲型驱动 。 n倍率显示数据从信号发生装置输出到显示装置,并且显示装置包括用于使输入的n倍率显示数据进行n倍速率脉冲驱动的数据转换处理的电路。 除了n倍率显示数据之外,将用于识别原始视频信号的帧的转动位置的识别信号输入到显示装置,以防止错误的数据转换操作。
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