公开(公告)号：US08289269B2

公开(公告)日：2012-10-16

申请号：US12452072

申请日：2008-06-09

申请人： Kohei Nanbu

发明人： Kohei Nanbu

IPC分类号： G09G3/36

CPC分类号： G09G3/342 ,  G02F1/133604 ,  G09G3/006 ,  G09G2320/0606 ,  G09G2330/02 ,  G09G2330/04

摘要： One embodiment of the present invention discloses a transmissive display device including a display panel, a backlight including a plurality of fluorescent tubes, an inverter section that supplies a driving voltage to the backlight, and an inverter control section that controls whether to drive or stop the inverter section and stops the inverter section when at least one of the fluorescent tubes is not lighting. The display device includes a mode determination section that determines whether a driving mode of the display device is a normal mode or a maintenance mode. Upon receiving, from the mode determination section, a signal indicating that the drive mode is the maintenance mode, after having stopped the inverter section due to a fact that at least one of the plurality of fluorescent tubes is not lighting, the inverter control section drives the inverter section again. Such a configuration makes it possible to, in a display device in which a backlight including a plurality of fluorescent tubes is used, make maintenance work more efficient by identifying a failed fluorescent tube while the backlight is not lighting.

摘要翻译： 本发明的一个实施例公开了一种透射型显示装置，包括显示面板，包括多个荧光管的背光，向背光源提供驱动电压的逆变器部，以及控制是否驱动 逆变器部分，并且当至少一个荧光管不发光时停止变频器部分。 显示装置包括确定显示装置的驱动模式是正常模式还是维护模式的模式确定部。 在从模式确定部分接收到指示驱动模式是维护模式的信号之后，由于多个荧光管中的至少一个未点亮的事实使逆变器部分停止，则逆变器控制部分驱动 逆变器部分。 这样的结构使得在使用包括多个荧光管的背光的显示装置中可以通过在背光源不点亮的同时识别失效的荧光管来使维护工作更有效率。

公开(公告)号：US08248360B2

公开(公告)日：2012-08-21

申请号：US12452080

申请日：2008-06-10

申请人： Kohei Nanbu

发明人： Kohei Nanbu

IPC分类号： G09G3/36

CPC分类号： H05B41/3927 ,  G02F1/133604 ,  G02F1/133615 ,  G02F2001/133601 ,  G02F2201/58 ,  G02F2203/11 ,  G09G3/342 ,  G09G2320/0233 ,  G09G2320/064 ,  G09G2360/145

摘要： One embodiment of the present invention discloses a backlight control device that provides PWM control inverters with PWM signals generated in accordance with a dimming level input through a light receiving section that receives infrared light, the inverters causing fluorescent lamps that emit visible light and infrared light to illuminate. The backlight control device includes a phase adjusting section that changes a phase difference between a first PWM signal for driving a first lamp group and a second PWM signal for driving a second lamp group according to the dimming level when the dimming level is at least in a predetermined range of all dimming levels, the first and second lamp groups each including at least one lamp. This provides a backlight control device that enables reduction of faulty operation in an infrared-based apparatus.

摘要翻译： 本发明的一个实施例公开了一种背光控制装置，其向PWM控制逆变器提供根据通过接收红外光的光接收部输入的调光电平而产生的PWM信号，所述反相器引起发出可见光和红外光的荧光灯 照亮。 背光控制装置包括：相位调整部，其在调光度至少为1时，根据调光度改变用于驱动第1灯组的第1 PWM信号与驱动第2灯组的第2 PWM信号之间的相位差 所有调光水平的预定范围，第一和第二灯组各自包括至少一个灯。 这提供了一种能够减少基于红外线的装置中的故障操作的背光控制装置。

公开(公告)号：US20100127963A1

公开(公告)日：2010-05-27

申请号：US12452080

申请日：2008-06-10

申请人： Kohei Nanbu

发明人： Kohei Nanbu

IPC分类号： G09G3/36

CPC分类号： H05B41/3927 ,  G02F1/133604 ,  G02F1/133615 ,  G02F2001/133601 ,  G02F2201/58 ,  G02F2203/11 ,  G09G3/342 ,  G09G2320/0233 ,  G09G2320/064 ,  G09G2360/145

摘要： One embodiment of the present invention discloses a backlight control device that provides PWM control inverters with PWM signals generated in accordance with a dimming level input through a light receiving section that receives infrared light, the inverters causing fluorescent lamps that emit visible light and infrared light to illuminate. The backlight control device includes a phase adjusting section that changes a phase difference between a first PWM signal for driving a first lamp group and a second PWM signal for driving a second lamp group according to the dimming level when the dimming level is at least in a predetermined range of all dimming levels, the first and second lamp groups each including at least one lamp. This provides a backlight control device that enables reduction of faulty operation in an infrared-based apparatus.

摘要翻译： 本发明的一个实施例公开了一种背光控制装置，其向PWM控制逆变器提供根据通过接收红外光的光接收部输入的调光电平而产生的PWM信号，所述反相器引起发出可见光和红外光的荧光灯 照亮。 背光控制装置包括：相位调整部，其在调光度至少为1时，根据调光度改变用于驱动第1灯组的第1 PWM信号与驱动第2灯组的第2 PWM信号之间的相位差 所有调光水平的预定范围，第一和第二灯组各自包括至少一个灯。 这提供了一种能够减少基于红外线的装置中的故障操作的背光控制装置。

公开(公告)号：US08186841B2

公开(公告)日：2012-05-29

申请号：US12307515

申请日：2007-06-28

申请人： Masahiro Arai ,  Kohei Nanbu ,  Masaki Shimizu

发明人： Masahiro Arai ,  Kohei Nanbu ,  Masaki Shimizu

IPC分类号： G09F13/04

CPC分类号： H05B41/00 ,  G02F1/133604 ,  G02F1/133611 ,  G02F2001/133612 ,  H05B41/282 ,  Y02B20/183

摘要： A fluorescent tube is prevented from being wrongly attached and broken when being attached, and luminance nonuniformity of backlight due to luminance difference generated in a tube axis direction of the fluorescent tube is reduced. A backlight device 2 is provided with a plurality of fluorescent tubes 21 having electrodes 211 at both ends; a bundling member 213 for bundling wirings 212 pulled out from the electrode 211 on one side of two or more of the fluorescent tubes 21; and a conducting means 31 for achieving conduction between the electrodes of the two fluorescent tubes among the fluorescent tubes 21 by being connected with the bundling member 213. The conducting means 31 permits a current to be carried between the electrodes of the two fluorescent tubes 21, which are bundled by the one bundling member 213, and the conducting means are arranged on inverter circuit substrate 28, respectively, not to be adjacent to each other.

摘要翻译： 防止荧光灯在安装时被错误地安装和断开，并且由于在荧光管的管轴方向上产生的亮度差导致的背光源的亮度不均匀性降低。 背光装置2设置有在两端具有电极211的多个荧光管21， 捆扎构件213，用于将从荧光管21的两个或更多个的一侧上的电极211拉出的布线212捆扎; 以及用于通过与捆扎构件213连接来实现荧光管21中的两个荧光管的电极之间的导通的导电装置31.导电装置31允许在两个荧光管21的电极之间承载电流， 它们由一个捆扎构件213捆扎，并且导电装置分别布置在逆变器电路基板28上，彼此不相邻。

公开(公告)号：US20120043901A1

公开(公告)日：2012-02-23

申请号：US13266644

申请日：2010-02-17

申请人： Kohei Nanbu

发明人： Kohei Nanbu

IPC分类号： H05B41/36

CPC分类号： G09G3/342 ,  G09G2320/064 ,  H05B41/3927

摘要： In a lighting device (3) including a cold-cathode fluorescent lamp (light source) (9), and a light-emitting surface (10c) that emits light from the cold-cathode fluorescent lamp (9), an inverter circuit (driver circuit) (16) that drives and turns on the cold-cathode fluorescent lamp (9) using PWM dimming; and a lighting control unit (control unit) (15) that receives a dimming instruction signal that gives an instruction on the luminance of the light-emitting surface (10c) input from outside, and conducts driving control of the inverter circuit (16) based on the input dimming instruction signal are disposed. Provided with an LUT (storage unit) (15d) having the relationship between dimming instruction signals and dimming frequencies in PWM dimming stored therein in advance, the lighting control unit (15), when a dimming instruction signal is input, obtains a dimming frequency that corresponds to the input dimming instruction signal from the LUT (15d), and conducts driving control of the inverter circuit (16) such that the cold-cathode fluorescent lamp (9) is driven and turned on by the obtained dimming frequency.

摘要翻译： 在包括冷阴极荧光灯（光源）（9）的发光装置（3）和从冷阴极荧光灯（9）发射光的发光面（10c）的逆变器电路（驱动器 电路）（16），其使用PWM调光驱动并打开冷阴极荧光灯（9）; 以及照明控制单元（15），其接收对外部输入的发光面（10c）的亮度的指示的调光指示信号，并且基于逆变器电路（16）的驱动控制 对输入调光指示信号进行配置。 具有预先存储的PWM调光中的调光指示信号和调光频率之间的关系的LUT（存储单元）（15d），点亮控制单元（15）在输入调光指示信号时获得调光频率， 对应于来自LUT（15d）的输入调光指示信号，并且进行逆变器电路（16）的驱动控制，使得冷阴极荧光灯（9）通过获得的调光频率被驱动和接通。

公开(公告)号：US20100134526A1

公开(公告)日：2010-06-03

申请号：US12452284

申请日：2008-07-03

申请人： Kohei Nanbu

发明人： Kohei Nanbu

IPC分类号： G09G5/10 ,  G09G3/36

CPC分类号： H05B41/2821 ,  G09G3/2092 ,  G09G3/342 ,  G09G2330/12 ,  G09G2360/145

摘要： In one embodiment of the present invention, a transmissive liquid crystal display device includes a display panel, a backlight, and an inverter section. The liquid crystal display device further includes: a comparison process section for judging whether or not a voltage supplied to the inverter section is not less than a predetermined voltage required for normally driving the inverter section; a lighting state detection section for detecting lighting state of the backlight; and a backlight failure detection section for (i) judging whether or not the backlight has failed in accordance with each of processed results, and outputting a signal in accordance with a judged result. The backlight failure detection section outputs a backlight failure signal, in a case where (i) the voltage is not less than the predetermined voltage and (ii) the backlight is not lighting normally. Whereas, the backlight failure detection section does not output the backlight failure signal, in a case where the voltage is less than the predetermined voltage. According to the configuration of the display device including a backlight, a cause of improper lighting of the backlight can be identified. This allows maintenance work to be carried out efficiently.

摘要翻译： 在本发明的一个实施例中，透射式液晶显示装置包括显示面板，背光源和逆变器部分。 液晶显示装置还包括：比较处理部分，用于判断提供给逆变器部分的电压是否不小于正常驱动逆变器部分所需的预定电压; 照明状态检测部，用于检测背光的点亮状态; 以及背光源故障检测部，其用于（i）根据处理结果判断背光是否发生故障，并根据判定结果输出信号。 在（i）电压不小于预定电压并且（ii）背光不正常照明的情况下，背光故障检测部分输出背光故障信号。 而在电压小于预定电压的情况下，背光源故障检测部分不输出背光故障信号。 根据包括背光的显示装置的结构，可以识别背光不正确照明的原因。 这样可以有效地进行维护工作。

公开(公告)号：US20090316079A1

公开(公告)日：2009-12-24

申请号：US12307515

申请日：2007-06-28

申请人： Masahiro Arai ,  Kohei Nanbu ,  Masaki Shimizu

发明人： Masahiro Arai ,  Kohei Nanbu ,  Masaki Shimizu

IPC分类号： G02F1/13357 ,  G09F13/04 ,  H01J9/24

CPC分类号： H05B41/00 ,  G02F1/133604 ,  G02F1/133611 ,  G02F2001/133612 ,  H05B41/282 ,  Y02B20/183

摘要： A fluorescent tube is prevented from being wrongly attached and broken when being attached, and luminance nonuniformity of backlight due to luminance difference generated in a tube axis direction of the fluorescent tube is reduced. A backlight device 2 is provided with a plurality of fluorescent tubes 21 having electrodes 211 at both ends; a bundling member 213 for bundling wirings 212 pulled out from the electrode 211 on one side of two or more of the fluorescent tubes 21; and a conducting means 31 for achieving conduction between the electrodes of the two fluorescent tubes among the fluorescent tubes 21 by being connected with the bundling member 213. The conducting means 31 permits a current to be carried between the electrodes of the two fluorescent tubes 21, which are bundled by the one bundling member 213, and the conducting means are arranged on inverter circuit substrate 28, respectively, not to be adjacent to each other.

摘要翻译： 防止荧光灯在安装时被错误地安装和断开，并且由于在荧光管的管轴方向上产生的亮度差导致的背光源的亮度不均匀性降低。 背光装置2设置有在两端具有电极211的多个荧光管21， 捆扎构件213，用于将从荧光管21的两个或更多个的一侧上的电极211拉出的布线212捆扎; 以及用于通过与捆扎构件213连接来实现荧光管21中的两个荧光管的电极之间的导通的导电装置31.导电装置31允许在两个荧光管21的电极之间承载电流， 它们由一个捆扎构件213捆扎，并且导电装置分别布置在逆变器电路基板28上，彼此不相邻。

公开(公告)号：US20100134525A1

公开(公告)日：2010-06-03

申请号：US12452072

申请日：2008-06-09

申请人： Kohei Nanbu

发明人： Kohei Nanbu

IPC分类号： G09G5/10 ,  G09G3/36

CPC分类号： G09G3/342 ,  G02F1/133604 ,  G09G3/006 ,  G09G2320/0606 ,  G09G2330/02 ,  G09G2330/04

摘要： One embodiment of the present invention discloses a transmissive display device including a display panel, a backlight including a plurality of fluorescent tubes, an inverter section that supplies a driving voltage to the backlight, and an inverter control section that controls whether to drive or stop the inverter section and stops the inverter section when at least one of the fluorescent tubes is not lighting. The display device includes a mode determination section that determines whether a driving mode of the display device is a normal mode or a maintenance mode. Upon receiving, from the mode determination section, a signal indicating that the drive mode is the maintenance mode, after having stopped the inverter section due to a fact that at least one of the plurality of fluorescent tubes is not lighting, the inverter control section drives the inverter section again. Such a configuration makes it possible to, in a display device in which a backlight including a plurality of fluorescent tubes is used, make maintenance work more efficient by identifying a failed fluorescent tube while the backlight is not lighting.

摘要翻译： 本发明的一个实施例公开了一种透射型显示装置，包括显示面板，包括多个荧光管的背光，向背光源提供驱动电压的逆变器部，以及控制是否驱动 逆变器部分，并且当至少一个荧光管不发光时停止变频器部分。 显示装置包括确定显示装置的驱动模式是正常模式还是维护模式的模式确定部。 在从模式确定部分接收到指示驱动模式是维护模式的信号之后，由于多个荧光管中的至少一个未点亮的事实使逆变器部分停止，则逆变器控制部分驱动 逆变器部分。 这样的结构使得在使用包括多个荧光管的背光的显示装置中可以通过在背光源不点亮的同时识别失效的荧光管来使维护工作更有效率。

公开(公告)号：US20070189024A1

公开(公告)日：2007-08-16

申请号：US10564391

申请日：2004-07-15

申请人： Kohei Nanbu ,  Mitsuhiro Moriyasu ,  Kazuko Tanaka

发明人： Kohei Nanbu ,  Mitsuhiro Moriyasu ,  Kazuko Tanaka

IPC分类号： G02F1/1335

CPC分类号： G02B6/005 ,  G02B6/0056 ,  G02F1/133536 ,  G02F1/133602 ,  G02F2001/133507 ,  G02F2203/60

摘要： In a backlight unit provided with a plurality of optical sheets, a first optical sheet is characterized by having different coefficients of linear expansion in two different directions (a first direction and a second direction) with the coefficient of linear expansion in the first direction larger than that in the second direction. A second optical sheet is arranged adjacently to the first optical sheet. The coefficient of linear expansion of the second optical sheet in approximately the same direction as the first direction of the first optical sheet is approximated to the coefficient of linear expansion of the first optical sheet in the first direction.

摘要翻译： 在设置有多个光学片的背光单元中，第一光学片的特征在于在两个不同方向（第一方向和第二方向）上具有不同的线性膨胀系数，其中在第一方向上的线膨胀系数大于 在第二个方向。 第二光学片被布置成与第一光学片相邻。 与第一光学片的第一方向大致相同的方向上的第二光学片的线膨胀系数近似于第一光学片在第一方向上的线膨胀系数。

公开(公告)号：US20120044134A1

公开(公告)日：2012-02-23

申请号：US13266640

申请日：2010-03-05

申请人： Kohei Nanbu

发明人： Kohei Nanbu

IPC分类号： G09G3/36

CPC分类号： H05K7/20972 ,  G02F1/133382 ,  G02F2001/133628 ,  G02F2201/36

摘要： Provided is a liquid crystal display apparatus having a heat dissipation mechanism which can effectively dissipate heat generated in a heat generating part generating a large amount of heat. The liquid crystal display apparatus includes a liquid crystal panel, a backlight, a backlight chassis (70), and a wiring substrate (75) to which at least one heat generating part (90) is electrically connected. The heat generating part is mounted on a heat dissipation plate (80) through which heat generated by the heat generating part is dissipated. The region of the heat dissipation plate on which the heat generating part is mounted is spatially separated from the substrate to form an air passage (87). At least a portion of the heat dissipation plate is attached to the backlight chassis so as to conduct heat from the heat generating part to the backlight chassis through the heat dissipation plate.

摘要翻译： 提供一种具有散热机构的液晶显示装置，其能够有效地散发产生大量热量的发热部产生的热量。 液晶显示装置包括液晶面板，背光源，背光源底座（70）和至少一个发热部（90）电连接的配线基板。 发热部安装在散热板（80）上，由散热板产生的热量消散。 散热板的安装有发热部的区域与基板空间分离，形成空气通路（87）。 散热板的至少一部分被安装在背光源底座上，以便通过散热板将热量从发热部分传导到背光源底座。