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    Apparatus and method for driving backlight unit
    1.
    发明申请
    Apparatus and method for driving backlight unit 有权
    用于驱动背光单元的装置和方法

    公开(公告)号：US20090021178A1

    公开(公告)日：2009-01-22

    申请号：US10571278

    申请日：2005-07-08

    申请人： Norimasa Furukawa ,  Hiroaki Ichikawa ,  Kenichi Kikuchi

    发明人： Norimasa Furukawa ,  Hiroaki Ichikawa ,  Kenichi Kikuchi

    IPC分类号： H05B41/30

    CPC分类号： H05B33/0815 ,  G09G3/3413 ,  G09G3/342 ,  G09G2320/041 ,  G09G2320/0633 ,  G09G2320/064 ,  G09G2360/145 ,  H05B33/0818 ,  H05B33/0857 ,  H05B33/0872

    摘要： The present invention is directed to a drive apparatus for a backlight unit (20) in which plural LED (Light Emitting Diode) elements are cascade-connected every three primary colors, which comprises a signal generating unit (44) for generating a signal having an arbitrary amplitude, an adjustment unit (50) for adjusting light emission quantities of groups of LED elements (30) on the basis of the signal which has been generated by the signal generating unit (44), a voltage applying unit (41) for applying a predetermined voltage every the groups of LED elements (30), light emission quantity detecting units (33) for detecting quantities of rays of light which have been emitted from the groups of LED elements (30), calorific value detecting units (32) for detecting calorific values emitted from the groups of LED elements in accordance with the voltage which has been applied to the voltage applying unit (41), and a control unit (50) for controlling the signal generating unit (44) on the basis of light emission quantities which have been detected by the light emission quantity detecting units (33) and calorific values which have been detected by the calorific value detecting units (32).

    摘要翻译： 本发明涉及一种用于背光单元（20）的驱动装置，其中多个LED（发光二极管）元件每三原色级联连接，该信号产生单元（44）用于产生具有 根据由信号生成部（44）生成的信号，调整LED元件组（30）的发光量的调整部（50），施加电压施加部（41） 每组LED元件（30）中的预定电压，用于检测从LED元件组（30）发射的光线的光量的发光量检测单元（33），用于 根据施加到电压施加单元（41）的电压来检测从LED元件组发射的发热值;以及控制单元（50），用于控制在基座上的信号产生单元（44） 由发光量检测单元（33）检测出的发光量和由发热量检测单元（32）检测出的发热量。

    Apparatus and method for driving backlight unit
    2.
    发明授权
    Apparatus and method for driving backlight unit 有权
    用于驱动背光单元的装置和方法

    公开(公告)号：US07675249B2

    公开(公告)日：2010-03-09

    申请号：US10571278

    申请日：2005-07-08

    申请人： Norimasa Furukawa ,  Hiroaki Ichikawa ,  Kenichi Kikuchi

    发明人： Norimasa Furukawa ,  Hiroaki Ichikawa ,  Kenichi Kikuchi

    IPC分类号： H05B37/02

    CPC分类号： H05B33/0815 ,  G09G3/3413 ,  G09G3/342 ,  G09G2320/041 ,  G09G2320/0633 ,  G09G2320/064 ,  G09G2360/145 ,  H05B33/0818 ,  H05B33/0857 ,  H05B33/0872

    摘要： The present invention is directed to a drive apparatus for a backlight unit (20) in which plural LED (Light Emitting Diode) elements are cascade-connected every three primary colors, which comprises a signal generating unit (44) for generating a signal having an arbitrary amplitude, an adjustment unit (50) for adjusting light emission quantities of groups of LED elements (30) on the basis of the signal which has been generated by the signal generating unit (44), a voltage applying unit (41) for applying a predetermined voltage every the groups of LED elements (30), light emission quantity detecting units (33) for detecting quantities of rays of light which have been emitted from the groups of LED elements (30), calorific value detecting units (32) for detecting calorific values emitted from the groups of LED elements in accordance with the voltage which has been applied to the voltage applying unit (41), and a control unit (50) for controlling the signal generating unit (44) on the basis of light emission quantities which have been detected by the light emission quantity detecting units (33) and calorific values which have been detected by the calorific value detecting units (32).

    摘要翻译： 本发明涉及一种用于背光单元（20）的驱动装置，其中多个LED（发光二极管）元件每三原色级联连接，该信号产生单元（44）用于产生具有 根据由信号生成部（44）生成的信号，调整LED元件组（30）的发光量的调整部（50），施加电压施加部（41） 每组LED元件（30）中的预定电压，用于检测从LED元件组（30）发射的光线的光量的发光量检测单元（33），用于 根据施加到电压施加单元（41）的电压来检测从LED元件组发射的发热值;以及控制单元（50），用于控制在基座上的信号产生单元（44） 由发光量检测单元（33）检测出的发光量和由发热量检测单元（32）检测出的发热量。

    Display unit and backlight unit
    3.
    发明授权
    Display unit and backlight unit 有权
    显示单元和背光单元

    公开(公告)号：US08174487B2

    公开(公告)日：2012-05-08

    申请号：US12370578

    申请日：2009-02-12

    申请人： Norimasa Furukawa ,  Kenichi Kikuchi ,  Hiroaki Ichikawa

    发明人： Norimasa Furukawa ,  Kenichi Kikuchi ,  Hiroaki Ichikawa

    IPC分类号： G09G3/34

    CPC分类号： G09G3/342 ,  G02F1/133603 ,  G09G3/3413 ,  G09G2320/0233 ,  G09G2320/041 ,  G09G2320/0633 ,  G09G2320/064 ,  G09G2360/145

    摘要： The disclosure includes various embodiments including, for example: (i) a color liquid crystal display unit has a color display panel of transmissive type and a backlight unit placed behind the color display panel; (ii) a backlight unit has a plurality of LEDs connected in series and a drive unit to drive the LEDs; (iii) a temperature sensor to detect the temperature of LEDs; (iv) groups of LEDs are arranged in regions where the display unit has the same temperature; and (v) a drive unit controls current to be supplied to LEDs in response to temperature detected by the temperature sensor so that the LEDs retain the constant brightness even when the LEDs fluctuate in temperature.

    摘要翻译： 本公开包括各种实施例，包括例如：（i）彩色液晶显示单元具有透射型彩色显示面板和位于彩色显示面板后面的背光单元; （ii）背光单元具有串联连接的多个LED和用于驱动LED的驱动单元; （iii）检测LED的温度的温度传感器; （iv）一组LED布置在显示单元具有相同温度的区域中; 和（v）驱动单元响应于由温度传感器检测到的温度控制向LED提供的电流，使得即使当LED的温度波动时，LED也保持恒定的亮度。

    Apparatus and method for driving backlight unit
    4.
    发明授权
    Apparatus and method for driving backlight unit 有权
    用于驱动背光单元的装置和方法

    公开(公告)号：US08111020B2

    公开(公告)日：2012-02-07

    申请号：US12656268

    申请日：2010-01-22

    申请人： Norimasa Furukawa ,  Hiroaki Ichikawa ,  Kenichi Kikuchi

    发明人： Norimasa Furukawa ,  Hiroaki Ichikawa ,  Kenichi Kikuchi

    IPC分类号： H05B37/02 ,  G09G3/36

    CPC分类号： H05B33/0815 ,  G09G3/3413 ,  G09G3/342 ,  G09G2320/041 ,  G09G2320/0633 ,  G09G2320/064 ,  G09G2360/145 ,  H05B33/0818 ,  H05B33/0857 ,  H05B33/0872

    摘要： The present invention is directed to a drive apparatus for a backlight unit (20) in which plural LED (Light Emitting Diode) elements are cascade-connected every three primary colors, which comprises a signal generating unit (44) for generating a signal having an arbitrary amplitude, an adjustment unit (50) for adjusting light emission quantities of groups of LED elements (30) on the basis of the signal which has been generated by the signal generating unit (44), a voltage applying unit (41) for applying a predetermined voltage every the groups of LED elements (30), light emission quantity detecting units (33) for detecting quantities of rays of light which have been emitted from the groups of LED elements (30), calorific value detecting units (32) for detecting calorific values emitted from the groups of LED elements in accordance with the voltage which has been applied to the voltage applying unit (41), and a control unit (50) for controlling the signal generating unit (44) on the basis of light emission quantities which have been detected by the light emission quantity detecting units (33) and calorific values which have been detected by the calorific value detecting units (32).

    摘要翻译： 本发明涉及一种用于背光单元（20）的驱动装置，其中多个LED（发光二极管）元件每三原色级联连接，该信号产生单元（44）用于产生具有 根据由信号生成部（44）生成的信号，调整LED元件组（30）的发光量的调整部（50），施加电压施加部（41） 每组LED元件（30）中的预定电压，用于检测从LED元件组（30）发射的光线的光量的发光量检测单元（33），用于 根据施加到电压施加单元（41）的电压来检测从LED元件组发射的发热值;以及控制单元（50），用于控制在基座上的信号产生单元（44） 由发光量检测单元（33）检测出的发光量和由发热量检测单元（32）检测出的发热量。

    Apparatus and method for driving backlight unit
    5.
    发明申请
    Apparatus and method for driving backlight unit 有权

    公开(公告)号：US20100181921A1

    公开(公告)日：2010-07-22

    申请号：US12656268

    申请日：2010-01-22

    申请人： Norimasa Furukawa ,  Hiroaki Ichikawa ,  Kenichi Kikuchi

    发明人： Norimasa Furukawa ,  Hiroaki Ichikawa ,  Kenichi Kikuchi

    IPC分类号： H05B37/02

    CPC分类号： H05B33/0815 ,  G09G3/3413 ,  G09G3/342 ,  G09G2320/041 ,  G09G2320/0633 ,  G09G2320/064 ,  G09G2360/145 ,  H05B33/0818 ,  H05B33/0857 ,  H05B33/0872

    摘要： The present invention is directed to a drive apparatus for a backlight unit (20) in which plural LED (Light Emitting Diode) elements are cascade-connected every three primary colors, which comprises a signal generating unit (44) for generating a signal having an arbitrary amplitude, an adjustment unit (50) for adjusting light emission quantities of groups of LED elements (30) on the basis of the signal which has been generated by the signal generating unit (44), a voltage applying unit (41) for applying a predetermined voltage every the groups of LED elements (30), light emission quantity detecting units (33) for detecting quantities of rays of light which have been emitted from the groups of LED elements (30), calorific value detecting units (32) for detecting calorific values emitted from the groups of LED elements in accordance with the voltage which has been applied to the voltage applying unit (41), and a control unit (50) for controlling the signal generating unit (44) on the basis of light emission quantities which have been detected by the light emission quantity detecting units (33) and calorific values which have been detected by the calorific value detecting units (32).

    DISPLAY UNIT AND BACKLIGHT UNIT
    6.
    发明申请
    DISPLAY UNIT AND BACKLIGHT UNIT 有权
    显示单元和背光单元

    公开(公告)号：US20090153464A1

    公开(公告)日：2009-06-18

    申请号：US12370578

    申请日：2009-02-12

    申请人： Norimasa FURUKAWA ,  Kenichi Kikuchi ,  Hiroaki Ichikawa

    发明人： Norimasa FURUKAWA ,  Kenichi Kikuchi ,  Hiroaki Ichikawa

    IPC分类号： G09G3/36

    CPC分类号： G09G3/342 ,  G02F1/133603 ,  G09G3/3413 ,  G09G2320/0233 ,  G09G2320/041 ,  G09G2320/0633 ,  G09G2320/064 ,  G09G2360/145

    摘要： The screen is exempt from variation in brightness due to uneven temperature distribution.The color liquid crystal display unit has a color display panel of transmissive type and a backlight unit placed behind the color display panel. The backlight unit has a plurality of LEDs connected in series, the drive unit to drive the LEDs in correspondence with the LEDs, and the temperature sensor to detect the temperature of LEDs. The groups of LEDs are arranged in regions where the display unit has the same temperature. The drive unit controls current to be supplied to LEDs in response to temperature detected by the temperature sensor so that the LEDs retain the constant brightness even when the LEDs fluctuate in temperature.

    摘要翻译： 由于不均匀的温度分布，屏幕不受亮度变化的影响。 彩色液晶显示单元具有透射型彩色显示面板和位于彩色显示面板后面的背光单元。 背光单元具有串联连接的多个LED，与LED对应地驱动LED的驱动单元和用于检测LED的温度的温度传感器。 LED组被布置在显示单元具有相同温度的区域中。 驱动单元响应于由温度传感器检测到的温度来控制向LED提供的电流，使得即使当LED在温度上波动时，LED也保持恒定的亮度。

    Display unit and backlight unit
    7.
    发明授权
    Display unit and backlight unit 有权
    显示单元和背光单元

    公开(公告)号：US07511695B2

    公开(公告)日：2009-03-31

    申请号：US11176391

    申请日：2005-07-08

    申请人： Norimasa Furukawa ,  Kenichi Kikuchi ,  Hiroaki Ichikawa

    发明人： Norimasa Furukawa ,  Kenichi Kikuchi ,  Hiroaki Ichikawa

    IPC分类号： G09G3/36

    CPC分类号： G09G3/342 ,  G02F1/133603 ,  G09G3/3413 ,  G09G2320/0233 ,  G09G2320/041 ,  G09G2320/0633 ,  G09G2320/064 ,  G09G2360/145

    摘要： The screen is exempt from variation in brightness due to uneven temperature distribution.The color liquid crystal display unit has a color display panel of transmissive type and a backlight unit placed behind the color display panel. The backlight unit has a plurality of LEDs connected in series, the drive unit to drive the LEDs in correspondence with the LEDs, and the temperature sensor to detect the temperature of LEDs. The groups of LEDs are arranged in regions where the display unit has the same temperature. The drive unit controls current to be supplied to LEDs in response to temperature detected by the temperature sensor so that the LEDs retain the constant brightness even when the LEDs fluctuate in temperature.

    摘要翻译： 由于不均匀的温度分布，屏幕不受亮度变化的影响。 彩色液晶显示单元具有透射型彩色显示面板和位于彩色显示面板后面的背光单元。 背光单元具有串联连接的多个LED，与LED对应地驱动LED的驱动单元和用于检测LED的温度的温度传感器。 LED组被布置在显示单元具有相同温度的区域中。 驱动单元响应于由温度传感器检测到的温度来控制向LED提供的电流，使得即使当LED在温度上波动时，LED也保持恒定的亮度。