公开(公告)号：US20130120481A1

公开(公告)日：2013-05-16

申请号：US13812146

申请日：2011-04-20

申请人： Takayuki Murai ,  Kohji Fujiwara ,  Toshiyuki Gotoh

发明人： Takayuki Murai ,  Kohji Fujiwara ,  Toshiyuki Gotoh

IPC分类号： G09G3/34 ,  G09G5/10

CPC分类号： G09G3/3406 ,  G09G3/3413 ,  G09G5/10 ,  G09G2310/0235 ,  G09G2310/024 ,  G09G2320/064

摘要： An image display apparatus comprising: a driver apparatus; and a total of N device groups of a first group to an N-th group (2≦N) each of which includes one or a plurality of light emitting devices, the image display apparatus uses the driver apparatus to make each of the device groups emit light preventing light emission capable periods from overlapping one another and displays an image by using the obtained light as backlight; wherein the driver apparatus includes: a power output circuit that outputs light emission power used for the light emission of the light emitting device; and a switch mechanism that switches, in accordance with arrival of the light emission capable period of a device group K (1≦K≦N), an output destination of the light emission power output from the power output circuit to the device group K.

摘要翻译： 一种图像显示装置，包括：驱动器装置; 以及包括一个或多个发光装置的第一组的N个装置组到第N组（2 @ N），图像显示装置使用驱动器装置来使每个装置组 防止发光能力的时段彼此重叠，并通过使用所获得的光作为背光来显示图像; 其中所述驱动器装置包括：功率输出电路，其输出用于所述发光器件的发光的发光功率; 以及根据设备组K（1 @ K @ N）的发光能力期间的到达将从功率输出电路输出的发光功率的输出目的地切换到设备组K的开关机构。

公开(公告)号：US20120147066A1

公开(公告)日：2012-06-14

申请号：US13390564

申请日：2010-03-10

申请人： Kohji Fujiwara ,  Takayuki Murai

发明人： Kohji Fujiwara ,  Takayuki Murai

IPC分类号： G09G3/36 ,  G09G3/32 ,  G09G5/10

CPC分类号： G09G3/3426 ,  G09G3/32 ,  G09G3/3413 ,  G09G2310/0235 ,  G09G2310/0237 ,  G09G2310/024 ,  G09G2310/08 ,  G09G2320/0242 ,  G09G2320/0247 ,  G09G2320/0261 ,  G09G2320/064 ,  G09G2320/103 ,  H05B33/0818 ,  H05B33/086

摘要： Disclosed is a backlight unit (16) for supplying backlight to a liquid crystal panel (15a), the backlight unit being provided with a plurality of LEDs (16b) that function as a light source of the backlight, and an LED driver (5) that comprises a plurality of control channels (1-12 ch) to each of which one or more of the LEDs are connected, and that PWM-controls lighting of the connected LEDs. The LED driver (5) can set the frequency or phase of the PWM control independently for each of the control channels (1-12 ch). Consequently, the flexibility of control of LEDs can be increased while the number of necessary LED drivers is reduced to a minimum.

摘要翻译： 公开了一种用于向液晶面板（15a）提供背光的背光单元（16），背光单元设置有用作背光源的光源的多个LED（16b）和LED驱动器（5） 其包括多个控制通道（1-12ch），其中一个或多个LED连接到其中的每一个，并且PWM控制连接的LED的点亮。 LED驱动器（5）可以为每个控制通道（1-12ch）单独设置PWM控制的频率或相位。 因此，可以增加控制LED的灵活性，同时将必要的LED驱动器的数量减少到最小。

公开(公告)号：US20120086740A1

公开(公告)日：2012-04-12

申请号：US13378227

申请日：2010-03-03

申请人： Takayuki Murai ,  Kohji Fujiwara ,  Hideki Ichioka

发明人： Takayuki Murai ,  Kohji Fujiwara ,  Hideki Ichioka

IPC分类号： G09G3/36 ,  G09G5/10

CPC分类号： G09G3/3648 ,  G02F2201/58 ,  G09G3/3406 ,  G09G2300/0434 ,  G09G2310/0237 ,  G09G2310/08 ,  G09G2320/041 ,  G09G2320/064 ,  G09G2340/0435

摘要： In at least one example embodiment, the present invention includes a liquid crystal display panel for displaying an image by virtue of having liquid crystals whose orientation changes in response to application of a voltage; a backlight unit with a built-in PWM light modulation type LED for emitting light to be supplied to the liquid crystal display panel; and a control unit for controlling the liquid crystal display panel and the backlight unit. In cases where the response speed of liquid crystal molecules is relatively high, the LED is driven at a relatively low drive frequency, whereas in cases where the response speed of the liquid crystal molecules is relatively low, the LED is driven at a relatively high drive frequency. According to the present invention, problems with image quality that tend to occur depending on the degree of tilting of the liquid crystal molecules (ghost outlines) are prevented.

摘要翻译： 在至少一个示例性实施例中，本发明包括一种液晶显示面板，用于通过具有响应于施加电压的方向改变的液晶来显示图像; 具有内置PWM调制型LED的背光单元，用于发射供给到液晶显示面板的光; 以及用于控制液晶显示面板和背光单元的控制单元。 在液晶分子的响应速度相对较高的情况下，以相对低的驱动频率驱动LED，而在液晶分子的响应速度相对较低的情况下，LED以较高的驱动速度驱动 频率。 根据本发明，防止了根据液晶分子的倾斜度（鬼影轮廓）倾向于发生的图像质量的问题。

公开(公告)号：US20110248974A1

公开(公告)日：2011-10-13

申请号：US12998924

申请日：2010-01-29

申请人： Takayuki Murai ,  Kohji Fujiwara

发明人： Takayuki Murai ,  Kohji Fujiwara

IPC分类号： G09G5/10 ,  H05B37/02

CPC分类号： G09G3/3426 ,  G02F1/133603 ,  G02F2001/133612 ,  G09G2320/041 ,  G09G2320/0626 ,  G09G2360/145 ,  H05B37/0254

摘要： Backlight drive units included in a backlight drive device of at least one embodiment of the present invention each have a plurality of metal pads functioning as a plurality of address setting terminals. To provide a potential for setting a unique address by coming into contact with the metal pads, metal protrusions are provided at corresponding locations of a backlight housing. A backlight drive control unit is directly connected to each unit through an IIC bus by a bus scheme and receives, via the IIC bus, a detected amount of light and temperature from each unit identified by the address. With such a simple configuration, a unique address can be automatically set for each unit, obtaining the commonization of backlight drive units.

摘要翻译： 包括在本发明的至少一个实施例的背光驱动装置中的背光驱动单元各自具有用作多个地址设置端子的多个金属焊盘。 为了提供通过与金属焊盘接触来设置唯一地址的可能性，在背光外壳的相应位置处提供金属突起。 背光驱动控制单元通过总线方案通过IIC总线直接连接到每个单元，并通过IIC总线接收来自由该地址识别的每个单元的检测到的光量和温度。 通过这样简单的配置，可以为每个单元自动设置唯一的地址，从而获得背光驱动单元的通用性。

公开(公告)号：US09324279B2

公开(公告)日：2016-04-26

申请号：US13576665

申请日：2010-11-11

申请人： Kohji Fujiwara ,  Takayuki Murai

发明人： Kohji Fujiwara ,  Takayuki Murai

IPC分类号： G09G3/34 ,  H05B33/08

CPC分类号： G09G3/3413 ,  G09G2320/0233 ,  G09G2320/041 ,  G09G2320/062 ,  G09G2320/064 ,  G09G2320/0646 ,  G09G2330/021 ,  H05B33/0818 ,  H05B33/0854

摘要： A micon unit (11) performs, along at least one direction within the plane of planar light, brightness correction processing for adjusting brightness distribution of the planar light on light source color video signals (RSd, Gsd and BSd) so as to change them into light source color video signals (RSd′, GSd′ and BSd′), and the micon unit (11) further calculates the total light emission power of all LEDs (52) based on the light source color video signals (RSd′, GSd′ and BSd′), and performs, when the total light emission power exceeds an allowable light emission power, light emission power correction processing on the light source color video signals (RSd′, GSd′ and BSd′).

摘要翻译： 微型单元（11）沿着平面光平面内的至少一个方向执行用于调整光源彩色视频信号（RSd，Gsd和BSd）上的平面光的亮度分布的亮度校正处理，以便将它们改变为 光源彩色视频信号（RSd'，GSd'和BSd'）和微型单元（11）还基于光源彩色视频信号（RSd'，GSd'）计算所有LED（52）的总发光功率， 和BSd'），并且当总发光功率超过容许发光功率时，对光源彩色视频信号（RSd'，GSd'和BSd'）进行发光功率校正处理。

公开(公告)号：US20120299891A1

公开(公告)日：2012-11-29

申请号：US13522115

申请日：2010-11-10

申请人： Kohji Fujiwara ,  Takayuki Murai

发明人： Kohji Fujiwara ,  Takayuki Murai

IPC分类号： G09G5/00

CPC分类号： G09G3/3426 ,  G09G2320/041 ,  G09G2330/021 ,  G09G2360/144 ,  G09G2360/16

摘要： The light emitting device is divided into a plurality of areas, and has, as main configuration elements, an area drive circuit (2), which generates LED data and LCD data, an LED controller (4), and a backlight unit (5), which is provided with a plurality of LEDs (52) corresponding to each of the areas. The power calculating unit of the LED controller (4) is mainly configured of a power calculating circuit (42), a power limiter circuit (43), and a limit value updating circuit (45), and the emission power to be supplied to each of the LEDs (52) is calculated for each are on the basis of image data. The power calculating unit performs the calculation such that the sum (Psum) of the emission power does not exceed a power limit value (Plimit) currently set, and updates the power limit value (Plimit) by following a previously set pattern.

摘要翻译： 发光装置分为多个区域，作为主要构成要素，具有产生LED数据和LCD数据的区域驱动电路（2），LED控制器（4）和背光单元（5） ，其设置有对应于每个区域的多个LED（52）。 LED控制器（4）的功率计算单元主要由功率计算电路（42），功率限制器电路（43）和限制值更新电路（45）构成，并且向每个 根据图像数据计算每个LED（52）。 功率计算单元执行计算，使得发射功率的总和（Psum）不超过当前设置的功率限制值（Plimit），并且通过遵循预先设定的模式来更新功率限制值（Plimit）。

公开(公告)号：US20120086684A1

公开(公告)日：2012-04-12

申请号：US13377930

申请日：2010-03-26

申请人： Hideki Ichioka ,  Takayuki Murai ,  Kohji Fujiwara

发明人： Hideki Ichioka ,  Takayuki Murai ,  Kohji Fujiwara

IPC分类号： G09G3/36 ,  G06F3/038

CPC分类号： G09G3/2022 ,  G09G3/3406 ,  G09G2310/0232 ,  G09G2310/0251 ,  G09G2320/0257 ,  G09G2320/041 ,  G09G2320/0633 ,  G09G2320/064 ,  G09G2320/0646 ,  G09G2320/103 ,  G09G2340/0435

摘要： Disclosed is a liquid crystal display device including: a VA-IPS mode liquid crystal display panel; a backlight unit incorporating a PWM dimming type light source; and a control unit that controls the liquid crystal display panel and the backlight unit, in which the control unit obtains response speed data of orientation change of liquid crystal molecules, and changes a duty factor of a PWM dimming signal according to the response speed data. In a case where the response speed of the liquid crystal molecules is relatively high, LEDs are driven with a relatively small duty factor. In a case where the response speed of the liquid crystal molecules is relatively low, the LEDs are driven with a relatively large duty factor, and black insertion is not performed. The liquid crystal display device prevents an image quality malfunction (multiple outlines).

摘要翻译： 公开了一种液晶显示装置，包括：VA-IPS模式液晶显示面板; 结合有PWM调光型光源的背光单元; 以及控制单元，其控制液晶显示面板和背光单元，其中控制单元获得液晶分子的取向变化的响应速度数据，并根据响应速度数据改变PWM调光信号的占空比。 在液晶分子的响应速度相对较高的情况下，以较小的占空因数驱动LED。 在液晶分子的响应速度相对较低的情况下，以较大的占空因数驱动LED，不进行黑插入。 液晶显示装置防止图像质量故障（多个轮廓）。

公开(公告)号：US20110273488A1

公开(公告)日：2011-11-10

申请号：US13138158

申请日：2009-11-05

申请人： Kohji Fujiwara ,  Takayuki Murai ,  Hideki Ichioka

发明人： Kohji Fujiwara ,  Takayuki Murai ,  Hideki Ichioka

IPC分类号： G09G5/10

CPC分类号： G09G3/3413 ,  G09G3/342 ,  G09G3/3611 ,  G09G2320/0242 ,  G09G2320/041 ,  G09G2320/0646 ,  G09G2330/021

摘要： Under management by a main microcomputer, an LED controller performs, along at least two directions within a plane of planar light formed by LEDs arranged in a matrix, brightness correction processing for adjusting the distribution of brightness of the planar light on light source color video signals to convert them into light source color video signals.

摘要翻译： 在由主微型计算机管理的LED控制器中，LED控制器沿着布置在矩阵中的LED形成的平面光平面内的至少两个方向执行亮度校正处理，用于调整光源彩色视频信号上的平面光的亮度分布 将其转换为光源彩色视频信号。

公开(公告)号：US09711093B2

公开(公告)日：2017-07-18

申请号：US13522115

申请日：2010-11-10

申请人： Kohji Fujiwara ,  Takayuki Murai

发明人： Kohji Fujiwara ,  Takayuki Murai

IPC分类号： G09G3/288 ,  G09G3/34

CPC分类号： G09G3/3426 ,  G09G2320/041 ,  G09G2330/021 ,  G09G2360/144 ,  G09G2360/16

摘要： The light emitting device is divided into a plurality of areas, and has, as main configuration elements, an area drive circuit (2), which generates LED data and LCD data, an LED controller (4), and a backlight unit (5), which is provided with a plurality of LEDs (52) corresponding to each of the areas. The power calculating unit of the LED controller (4) is mainly configured of a power calculating circuit (42), a power limiter circuit (43), and a limit value updating circuit (45), and the emission power to be supplied to each of the LEDs (52) is calculated for each are on the basis of image data. The power calculating unit performs the calculation such that the sum (Psum) of the emission power does not exceed a power limit value (Plimit) currently set, and updates the power limit value (Plimit) by following a previously set pattern.

公开(公告)号：US08872756B2

公开(公告)日：2014-10-28

申请号：US13390562

申请日：2010-03-10

申请人： Kohji Fujiwara ,  Takayuki Murai

发明人： Kohji Fujiwara ,  Takayuki Murai

IPC分类号： G09G3/36 ,  G09G3/34 ,  H04N5/66

CPC分类号： G09G3/3426 ,  G09G3/3611 ,  G09G2320/064 ,  H04N5/66

摘要： A backlight unit according to the present invention includes a plurality of LED drivers (5a) to (5i), an LED controller (61) that generates a control information group in which lighting control information for selected LED drivers is arranged and a cascade line that connects the LED drivers in cascade. The LED controller (61) enables the selected LED drivers (5), and feeds the control information group to the cascade line, and the enabled LED drivers (5) perform an operation (acquisition operation) of acquiring the lighting control information on itself among the control information group whereas the LED drivers (5) that are not enabled do not perform the acquisition operation. According to the present invention, it is possible to reduce the performance of unnecessary operations of the backlight unit. The present invention can be utilized in a liquid crystal display device that uses LEDs as a light source of backlight.

摘要翻译： 根据本发明的背光单元包括多个LED驱动器（5a）至（5i），LED控制器（61），其生成控制信息组，其中布置所选择的LED驱动器的点亮控制信息;以及级联线， 将级联的LED驱动器连接起来。 LED控制器（61）使能所选择的LED驱动器（5），并且将控制信息组馈送到级联线路，并且使能的LED驱动器（5）执行获取其自身上的照明控制信息的操作（获取操作） 控制信息组而不启用的LED驱动器（5）不执行采集操作。 根据本发明，可以降低背光单元的不必要的操作的性能。 本发明可以用在使用LED作为背光的光源的液晶显示装置中。