公开(公告)号：US20130057165A1

公开(公告)日：2013-03-07

申请号：US13698058

申请日：2011-06-28

申请人： Masahiro Ide ,  Motoyuki Oniki ,  Tomoyuki Ichiza

发明人： Masahiro Ide ,  Motoyuki Oniki ,  Tomoyuki Ichiza

IPC分类号： H05B37/02

CPC分类号： H05B33/0845 ,  G09G3/2092 ,  G09G3/3406

摘要： Provided are an LED control device and a liquid crystal display apparatus, wherein energy loss or noise (humming sound) to be generated upon switching the control of power supplying from a power supply device to a plurality of LED groups, between constant current control and constant voltage control, can be alleviated. In a configuration wherein power to be supplied from one power supply device, to which a plurality of LED groups are connected in parallel, is controlled with constant current control wherein the voltage at the end section at the cathode side of the LED group to be turned on is to be maintained at a predetermined first voltage value, when at least one of the LED groups is to be turned on, and controlled with constant voltage control wherein the voltage at the end sections at the anode side of the LED groups is to be maintained at a predetermined second voltage value, when all the LED groups are to be turned off, a phase difference of 2π/n (n is the number of LED groups) is made to be generated between PWM signals corresponding to each of the LED groups.

摘要翻译： 提供了一种LED控制装置和液晶显示装置，其中，在恒定电流控制和恒定电流控制之间切换从电源装置向多个LED组供电的控制时产生的能量损失或噪声（嗡嗡声） 电压控制，可以减轻。 在其中通过恒定电流控制来控制从多个LED组并联连接的从一个电源装置供电的电力的情况下，在LED组的阴极侧的端部处的电压被转动 将要保持在预定的第一电压值，当至少一个LED组要被接通时，并且通过恒定电压控制来控制，其中LED组的阳极侧的端部处的电压将为 保持在预定的第二电压值，当所有LED组关闭时，在与每个LED对应的PWM信号之间产生2＆pgr / n（n是LED组的数量）的相位差 团体

公开(公告)号：US20120162289A1

公开(公告)日：2012-06-28

申请号：US13389415

申请日：2010-08-06

申请人： Motoyuki Oniki

发明人： Motoyuki Oniki

IPC分类号： G09G5/10 ,  G09G3/36

CPC分类号： G09G3/342 ,  G02F1/133602 ,  G02F1/133603 ,  G02F2001/133601 ,  G09G2310/0237 ,  G09G2310/024 ,  G09G2310/08 ,  G09G2320/0261 ,  G09G2340/0435 ,  H04N7/0132

摘要： To provide a liquid crystal display device capable of reducing the occurrence of a multi-contour in the display of a moving image to the minimum, the cycle of execution of an intermittent lighting operation in backlight scanning and the cycle of a vertical synchronization signal are made equal when an interpolation image insertion mode in which an interpolation image signal generated on the basis of two or more continuous frame images is inserted between frames and written into a liquid crystal panel is executed, and the cycle of the execution of the intermittent lighting operation in the backlight scanning is made longer than the cycle of the vertical synchronization signal (or the backlight scanning is disabled) when an overlapped image output mode in which the same frame image is written into the liquid crystal panel continuously n times is executed.

摘要翻译： 为了提供能够将运动图像的显示中的多轮廓的发生减少到最小的液晶显示装置，进行背光扫描中的间歇点亮操作的执行周期和垂直同步信号的周期 执行其中基于两个或更多个连续帧图像生成的内插图像信号插入到帧之间并写入液晶面板的内插图像插入模式时，等同于执行间歇照明操作的循环 当执行将相同帧图像连续n次写入液晶面板的重叠图像输出模式时，使背光扫描比垂直同步信号的周期长（或背光扫描禁止）。

公开(公告)号：US08797253B2

公开(公告)日：2014-08-05

申请号：US13382857

申请日：2010-07-06

申请人： Kohji Iwasaki ,  Motoyuki Oniki

发明人： Kohji Iwasaki ,  Motoyuki Oniki

IPC分类号： G09G3/36

CPC分类号： G09G3/3406 ,  G02F2001/133613 ,  G09G2320/0633 ,  G09G2320/064

摘要： In an LCD device, picture quality luminance is controlled through the combination of pulse-width modulation (PWM) system and current value control system, reducing the electrical power consumption associated with turning on an LED. In the LED backlight, the light emitting luminance of the LED is controlled by both PWM and also by current value control, which selects the value of the current supplied to the LED from a plurality of set values. At least one of the plurality of set values is a predetermined current value at which duty reaches a maximum value at the maximum luminance value used in a specified picture quality mode of the picture quality modes established in the liquid crystal display device. In the aforementioned specified picture quality mode, the greatest luminance value to be used is smaller than at least the greatest luminance value used in other specified picture quality modes.

摘要翻译： 在LCD装置中，通过脉冲宽度调制（PWM）系统和电流值控制系统的组合来控制图像质量亮度，从而降低与打开LED相关的电力消耗。 在LED背光源中，LED的发光亮度由PWM和电流值控制来控制，电流值控制从多个设定值中选择提供给LED的电流值。 多个设定值中的至少一个是在液晶显示装置中建立的图像质量模式的指定图像质量模式中使用的最大亮度值下的占空比达到最大值的预定电流值。 在上述指定的图像质量模式中，要使用的最大亮度值至少小于其他指定图像质量模式中使用的最大亮度值。

公开(公告)号：US20120105515A1

公开(公告)日：2012-05-03

申请号：US13382857

申请日：2010-07-06

申请人： Kohji Iwasaki ,  Motoyuki Oniki

发明人： Kohji Iwasaki ,  Motoyuki Oniki

IPC分类号： G09G3/36 ,  G09G5/10

CPC分类号： G09G3/3406 ,  G02F2001/133613 ,  G09G2320/0633 ,  G09G2320/064

摘要： In an LCD device, picture quality luminance is controlled through the combination of pulse-width modulation (PWM) system and current value control system, reducing the electrical power consumption associated with turning on an LED. In the LED backlight, the light emitting luminance of the LED is controlled by both PWM and also by current value control, which selects the value of the current supplied to the LED from a plurality of set values. At least one of the plurality of set values is a predetermined current value at which duty reaches a maximum value at the maximum luminance value used in a specified picture quality mode of the picture quality modes established in the liquid crystal display device. In the aforementioned specified picture quality mode, the greatest luminance value to be used is smaller than at least the greatest luminance value used in other specified picture quality modes.

摘要翻译： 在LCD装置中，通过脉冲宽度调制（PWM）系统和电流值控制系统的组合来控制图像质量亮度，从而降低与打开LED相关的电力消耗。 在LED背光源中，LED的发光亮度由PWM和电流值控制来控制，电流值控制从多个设定值中选择提供给LED的电流值。 多个设定值中的至少一个是在液晶显示装置中建立的图像质量模式的指定图像质量模式中使用的最大亮度值下的占空比达到最大值的预定电流值。 在上述指定的图像质量模式中，要使用的最大亮度值至少小于其他指定图像质量模式中使用的最大亮度值。

公开(公告)号：US09142166B2

公开(公告)日：2015-09-22

申请号：US13638563

申请日：2011-03-30

申请人： Motoyuki Oniki

发明人： Motoyuki Oniki

IPC分类号： G09G3/36 ,  G09G3/34

CPC分类号： G09G3/342 ,  G09G2310/0237 ,  G09G2360/144

摘要： Provided is a liquid crystal display device capable of improving motion blur and preventing excessive current flow into a light source with a desired balance in a structure where the light intensity of a backlight device is properly changed in conjunction with the ambient illuminance. If the ambient illuminance (S1) of a liquid crystal display device is lower than a preliminarily set predetermined illuminance, a backlight scanning process (intermittent lighting process) is implemented (Yes of S2, S3), while if the ambient illuminance is not lower than the predetermined illuminance, the backlight scanning process (intermittent lighting process) is terminated (No of S2, S21). The light intensity of the backlight device is changed in conjunction with the high and low ambient illuminance by changing the drive current supplied to the light source, depending on the ambient illuminance of the liquid crystal display device and whether or not to implement the backlight scanning process (intermittent lighting process) (S4, S22).

摘要翻译： 提供一种能够改善运动模糊并防止在背光装置的光强度与环境照度一起适当地改变的结构中以期望的平衡来过量的电流流入光源的液晶显示装置。 如果液晶显示装置的环境照度（S1）低于预先设定的预定照度，则进行背光扫描处理（间歇照明处理）（S2，是S3），如果环境照度不低于 预定照度，背光扫描处理（间歇照明处理）结束（S2，S21）。 通过根据液晶显示装置的环境照度改变提供给光源的驱动电流，以及是否实施背光扫描处理，结合高低环境照度来改变背光装置的光强度 （间歇照明处理）（S4，S22）。

公开(公告)号：US08860321B2

公开(公告)日：2014-10-14

申请号：US13698058

申请日：2011-06-28

申请人： Masahiro Ide ,  Motoyuki Oniki ,  Tomoyuki Ichiza

发明人： Masahiro Ide ,  Motoyuki Oniki ,  Tomoyuki Ichiza

IPC分类号： H05B37/00 ,  G09G3/34 ,  G09G3/20 ,  H05B33/08

CPC分类号： H05B33/0845 ,  G09G3/2092 ,  G09G3/3406

摘要： Provided are an LED control device and a liquid crystal display apparatus, wherein energy loss or noise (humming sound) to be generated upon switching the control of power supplying from a power supply device to a plurality of LED groups, between constant current control and constant voltage control, can be alleviated. In a configuration wherein power to be supplied from one power supply device, to which a plurality of LED groups are connected in parallel, is controlled with constant current control wherein the voltage at the end section at the cathode side of the LED group to be turned on is to be maintained at a predetermined first voltage value, when at least one of the LED groups is to be turned on, and controlled with constant voltage control wherein the voltage at the end sections at the anode side of the LED groups is to be maintained at a predetermined second voltage value, when all the LED groups are to be turned off, a phase difference of 2π/n (n is the number of LED groups) is made to be generated between PWM signals corresponding to each of the LED groups.

摘要翻译： 提供了一种LED控制装置和液晶显示装置，其中，在恒定电流控制和恒定电流控制之间切换从电源装置向多个LED组供电的控制时产生的能量损失或噪声（嗡嗡声） 电压控制，可以减轻。 在其中通过恒定电流控制来控制从多个LED组并联连接的从一个电源装置供电的电力的情况下，在LED组的阴极侧的端部处的电压被转动 将要保持在预定的第一电压值，当至少一个LED组要被接通时，并且通过恒定电压控制来控制，其中LED组的阳极侧的端部处的电压将为 保持在预定的第二电压值，当所有LED组关闭时，在与每个LED对应的PWM信号之间产生2＆pgr / n（n是LED组的数量）的相位差 团体

公开(公告)号：US08842140B2

公开(公告)日：2014-09-23

申请号：US13389415

申请日：2010-08-06

申请人： Motoyuki Oniki

发明人： Motoyuki Oniki

IPC分类号： G09G5/10 ,  G09G3/34 ,  G02F1/1335 ,  H04N7/01

CPC分类号： G09G3/342 ,  G02F1/133602 ,  G02F1/133603 ,  G02F2001/133601 ,  G09G2310/0237 ,  G09G2310/024 ,  G09G2310/08 ,  G09G2320/0261 ,  G09G2340/0435 ,  H04N7/0132

摘要： To provide a liquid crystal display device capable of reducing the occurrence of a multi-contour in the display of a moving image to the minimum, the cycle of execution of an intermittent lighting operation in backlight scanning and the cycle of a vertical synchronization signal are made equal when an interpolation image insertion mode in which an interpolation image signal generated on the basis of two or more continuous frame images is inserted between frames and written into a liquid crystal panel is executed, and the cycle of the execution of the intermittent lighting operation in the backlight scanning is made longer than the cycle of the vertical synchronization signal (or the backlight scanning is disabled) when an overlapped image output mode in which the same frame image is written into the liquid crystal panel continuously n times is executed.

摘要翻译： 为了提供能够将运动图像的显示中的多轮廓的发生减少到最小的液晶显示装置，进行背光扫描中的间歇点亮操作的执行周期和垂直同步信号的周期 执行其中基于两个或更多个连续帧图像生成的内插图像信号插入到帧之间并写入液晶面板的内插图像插入模式时，等同于执行间歇照明操作的周期 当执行将相同帧图像连续n次写入液晶面板的重叠图像输出模式时，使背光扫描比垂直同步信号的周期长（或背光扫描禁止）。

公开(公告)号：US20130016140A1

公开(公告)日：2013-01-17

申请号：US13638563

申请日：2011-03-30

申请人： Motoyuki Oniki

发明人： Motoyuki Oniki

IPC分类号： G09G5/10 ,  G09G3/36

CPC分类号： G09G3/342 ,  G09G2310/0237 ,  G09G2360/144

摘要： Provided is a liquid crystal display device capable of improving motion blur and preventing excessive current flow into a light source with a desired balance in a structure where the light intensity of a backlight device is properly changed in conjunction with the ambient illuminance. If the ambient illuminance (S1) of a liquid crystal display device is lower than a preliminarily set predetermined illuminance, a backlight scanning process (intermittent lighting process) is implemented (Yes of S2, S3), while if the ambient illuminance is not lower than the predetermined illuminance, the backlight scanning process (intermittent lighting process) is terminated (No of S2, S21). The light intensity of the backlight device is changed in conjunction with the high and low ambient illuminance by changing the drive current supplied to the light source, depending on the ambient illuminance of the liquid crystal display device and whether or not to implement the backlight scanning process (intermittent lighting process) (S4, S22).

摘要翻译： 提供一种能够改善运动模糊并防止在背光装置的光强度与环境照度一起适当地改变的结构中以期望的平衡来过量的电流流入光源的液晶显示装置。 如果液晶显示装置的环境照度（S1）低于预先设定的预定照度，则进行背光扫描处理（间歇照明处理）（S2，是S3），如果环境照度不低于 预定照度，背光扫描处理（间歇照明处理）结束（S2，S21）。 通过根据液晶显示装置的环境照度改变提供给光源的驱动电流，以及是否实施背光扫描处理，结合高低环境照度来改变背光装置的光强度 （间歇照明处理）（S4，S22）。

公开(公告)号：US20120162532A1

公开(公告)日：2012-06-28

申请号：US13393151

申请日：2010-08-30

申请人： Motoyuki Oniki ,  Tetsuo Ikeyama

发明人： Motoyuki Oniki ,  Tetsuo Ikeyama

IPC分类号： G09G3/36 ,  H04N3/10 ,  G09G5/10

CPC分类号： H04N5/202 ,  G09G3/3406 ,  G09G3/3611 ,  G09G2320/0646 ,  G09G2320/0673 ,  G09G2360/144 ,  G09G2360/16

摘要： A liquid crystal display apparatus and a television receiver enable an improvement in visibility in a low-tone range in a configuration in which the brightness of a backlight is changed on the basis of brightness information relating to an image. The apparatus includes an APL curve setting portion and a histogram luminance modulating portion which adjust the brightness of the backlight and a tone signal on the basis of the average brightness of the image and the brightness histogram of the image. A black extending portion applies gamma correction to the tone signal adjusted by the histogram luminance modulating portion on the basis of a previously set gamma value.

摘要翻译： 液晶显示装置和电视接收机能够在基于与图像有关的亮度信息改变背光源的亮度的配置中提高低色调范围的可视性。 该装置包括基于图像的平均亮度和图像的亮度直方图来调节背光的亮度和色调信号的APL曲线设置部分和直方图亮度调制部分。 基于预先设定的伽马值，黑色延伸部分对由直方图亮度调制部分调整的色调信号应用伽马校正。