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。

公开(公告)号：US08035603B2

公开(公告)日：2011-10-11

申请号：US11805851

申请日：2007-05-24

申请人： Norimasa Furukawa ,  Mitsuru Okabe ,  Mitsunari Hoshi

发明人： Norimasa Furukawa ,  Mitsuru Okabe ,  Mitsunari Hoshi

IPC分类号： G09G3/36 ,  G02B3/00

CPC分类号： G09G3/3413 ,  G09G3/3426 ,  G09G2320/0633 ,  G09G2320/064 ,  G09G2320/0666 ,  G09G2360/145

摘要： An illumination system capable of varying the light emission intensity of illumination light while maintaining the color balance of the illumination light is provided. An additive process illumination system obtaining a specific color light by mixing a plurality of color lights, the illumination system may include a plurality of light sources each emitting a different color light; a lighting period varying means for varying the lighting period of each light source; a light emission intensity varying means for varying the light emission intensity of each light source; and a control means for controlling the lighting period varying means and the light emission intensity varying means to control the light emission amount of each light source.

摘要翻译： 提供能够在保持照明光的颜色平衡的同时改变照明光的发光强度的照明系统。 一种通过混合多个彩色光获得特定色光的添加过程照明系统，该照明系统可以包括多个光源，每个光源发射不同的颜色光; 用于改变每个光源的发光周期的发光周期变化装置; 用于改变每个光源的发光强度的发光强度变化装置; 以及控制装置，用于控制发光周期改变装置和发光强度变化装置，以控制每个光源的发光量。

公开(公告)号：US20100265281A1

公开(公告)日：2010-10-21

申请号：US12756831

申请日：2010-04-08

申请人： Norimasa FURUKAWA ,  Mitsuyasu Asano

发明人： Norimasa FURUKAWA ,  Mitsuyasu Asano

IPC分类号： G09G5/10

CPC分类号： G09G3/3413 ,  G09G3/3426 ,  G09G2310/0235 ,  G09G2320/0242 ,  G09G2320/0646 ,  G09G2360/144 ,  G09G2360/16

摘要： The image display device includes a light source section having light emitting subsections; a display panel; and a display control section performing a control. An input frame image is decomposed into a plurality of field images and the field images are displayed in a field sequential manner. A differential image for each of the three primary-color components is obtained by subtracting a common luminance portion from the subsection-drive frame image. The differential image and a common image configured of the common luminance portion are sequentially outputted to the display panel in a time-divisional manner. In the first field period for outputting the differential image of a primary color component, corresponding primary color light is emitted, and in a second field period for outputting the common image, multiple kinds of primary color light, corresponding to the primary-color components configuring the common luminance portion, are emitted together.

摘要翻译： 图像显示装置包括具有发光子部分的光源部分; 显示面板; 以及执行控制的显示控制部。 输入帧图像被分解为多个场图像，并且以场顺序的方式显示场图像。 通过从子驱动帧图像中减去公共亮度部分来获得三个主要颜色分量中的每一个的差分图像。 差分图像和由公共亮度部分构成的公共图像以时分方式被顺序地输出到显示面板。 在用于输出原色分量的差分图像的第一场周期中，发出相应的原色光，并且在用于输出公共图像的第二场周期中，对应于初级颜色分量构成的多种原色光 公共亮度部分一起发射。

公开(公告)号：US07566143B2

公开(公告)日：2009-07-28

申请号：US11807590

申请日：2007-05-29

申请人： Norimasa Furukawa ,  Mitsunari Hoshi ,  Yoshihiro Katsu ,  Mitsuru Okabe

发明人： Norimasa Furukawa ,  Mitsunari Hoshi ,  Yoshihiro Katsu ,  Mitsuru Okabe

IPC分类号： F21S2/00 ,  G09G3/12 ,  F21V9/00

CPC分类号： G09G3/3413 ,  G09G3/3426 ,  G09G2320/0233 ,  G09G2320/064 ,  G09G2320/0646 ,  G09G2320/0666 ,  G09G2360/145

摘要： Herein disclosed a backlight apparatus for illuminating a color display panel from the back side, which may include a light source section having a composite light source, a light detecting light introducing plate, a plurality of light amount sensors for the individual colors, and control means.

摘要翻译： 这里公开了一种用于从背面照射彩色显示面板的背光装置，其可以包括具有复合光源的光源部分，光检测光导入板，用于各种颜色的多个光量传感器，以及控制装置 。

公开(公告)号：US07538497B2

公开(公告)日：2009-05-26

申请号：US10560444

申请日：2005-03-24

申请人： Norimasa Furukawa

发明人： Norimasa Furukawa

IPC分类号： G05F1/00

CPC分类号： H05B33/089 ,  G02F1/133603 ,  G09G3/342 ,  G09G2300/0452 ,  G09G2320/064 ,  H05B33/0818 ,  H05B33/0857

摘要： Disclosed is a constant current driving unit for constant current driving a plural number of series connected light emitting diodes by a pulse-width modulating constant current driving circuit. Bypass circuits (80A) to 80(E), made up by a plural number of thyristors (81A) to (81E), each connected in parallel with each of series-connected light emitting diodes (41A) to (41E), are provided with gate potential setting circuits (83A) to (83E). These gate potential setting circuits afford to the thyristors a gate potential value such that, when the series-connected light emitting diodes (41A) to (41E) are operating as normally, the thyristors (81A) to (81E) are in the off-state. The gate potential setting circuit affords to the thyristors another gate potential value such that, when the light emitting diodes (41A) to (41E) are in the open state, the thyristors connected in parallel with the light emitting diodes (41A) to (41E) in the opened state will be in a turned-on state.

摘要翻译： 公开了一种恒流驱动单元，用于通过脉冲宽度调制恒流驱动电路驱动多个串联的发光二极管的恒定电流。 提供了由多个串联连接的发光二极管（41A）至（41E）并联连接的多个晶闸管（81A）至（81E）组成的旁路电路（80A）至80（E） 与门电位设定电路（83A）〜（83E）。 这些栅极电位设定电路为晶闸管提供了栅极电位值，使得当串联连接的发光二极管（41A）至（41E）正常工作时，晶闸管（81A）至（81E） 州。 栅极电位设定电路为晶闸管提供了另一个栅极电位值，使得当发光二极管（41A）至（41E）处于打开状态时，与发光二极管（41A）至（41E）并联连接的晶闸管 ）处于打开状态将处于打开状态。

公开(公告)号：US07532283B2

公开(公告)日：2009-05-12

申请号：US10530828

申请日：2004-08-10

申请人： Tomoya Yano ,  Norimasa Furukawa ,  Hiroshi Murayama

发明人： Tomoya Yano ,  Norimasa Furukawa ,  Hiroshi Murayama

IPC分类号： G02F1/1335

CPC分类号： G02F1/133634 ,  G02B5/3083 ,  G02F1/134363 ,  G02F2001/133749

摘要： In case polarization plates (10A, 10B) including protective layers whose phase difference is negative are used, a retardation film optimized for the negative phase difference is placed in a position (P1) between a liquid crystal plane (20) and outgoing-side polarization plate (10A), in a position (P2) between the outgoing-side polarization plate (10A) and liquid crystal plate (20) or in both the positions (P1, P2) to reduce the leakage of black-level light directed at an angle 45 deg. Thus, in the in-plane switching (IPS) mode type liquid crystal display device, optical compensation is made to improve the viewing angle in black display.

摘要翻译： 在使用包括相位差为负的保护层的偏振板（10A，10B）的情况下，将针对负相位差优化的延迟膜设置在液晶面（20）和出射侧极化之间的位置（P1） （10A），在出射侧偏振板（10A）和液晶板（20）之间的位置（P2）或两个位置（P1，P2）处，以减少指向 角度45度 因此，在平面切换（IPS）模式型液晶显示装置中，进行光学补偿以改善黑色显示中的视角。

公开(公告)号：US07425943B2

公开(公告)日：2008-09-16

申请号：US11107124

申请日：2005-04-15

申请人： Norimasa Furukawa

发明人： Norimasa Furukawa

IPC分类号： G09G3/36

CPC分类号： H05B33/089 ,  G09G3/3406 ,  G09G3/342 ,  G09G2300/0452 ,  G09G2320/064 ,  G09G2330/08 ,  G09G2330/12 ,  G09G2360/145 ,  H05B33/0818 ,  H05B33/083 ,  H05B33/0857

摘要： A constant current driving device for constant current driving of a plurality of elements connected in series with each other by a pulse width modulation constant current driving circuit includes: switching elements respectively connected in parallel with the plurality of elements connected in series with each other; a control circuit for performing control to bypass a driving current flowing through the other elements than an arbitrary element to be measured via the respective switching elements and pass a measuring driving current through only the element to be measured; and a detecting circuit for identifying an element at a faulty position by detecting the driving current flowing through the plurality of elements connected in series with each other.

摘要翻译： 用于通过脉宽调制恒流驱动电路串联连接的多个元件的恒流驱动的恒流驱动装置包括：分别与彼此串联连接的多个元件并联连接的开关元件; 控制电路，用于通过各个开关元件执行控制以绕过流过其它元件的驱动电流而不是任何待测量的元件，并且通过测量驱动电流仅通过被测量元件; 以及检测电路，用于通过检测流过彼此串联连接的多个元件的驱动电流来识别故障位置处的元件。

公开(公告)号：US20070024206A1

公开(公告)日：2007-02-01

申请号：US11483866

申请日：2006-07-10

申请人： Yoshihiko Usami ,  Norimasa Furukawa

发明人： Yoshihiko Usami ,  Norimasa Furukawa

IPC分类号： H05B41/36

CPC分类号： H05B41/2828

摘要： A discharge lamp operating device includes a voltage application unit that applies to a discharge lamp an alternating-current (AC) voltage for operation of the discharge lamp, and a frequency setting unit that sets a frequency of the AC voltage to a first frequency for ignition of the discharge lamp and sets the frequency of the AC voltage to a second frequency during operation of the discharge lamp after the ignition. In the discharge lamp operating device, the second frequency is lower than the first frequency.

摘要翻译： 放电灯操作装置包括：电压施加单元，其对放电灯施加用于放电灯操作的交流（AC）电压;以及频率设定单元，其将交流电压的频率设定为点火的第一频率 并且在点火之后在放电灯的操作期间将AC电压的频率设定为第二频率。 在放电灯操作装置中，第二频率低于第一频率。

公开(公告)号：US20060176411A1

公开(公告)日：2006-08-10

申请号：US10560444

申请日：2005-03-24

申请人： Norimasa Furukawa

发明人： Norimasa Furukawa

IPC分类号： G02F1/133

CPC分类号： H05B33/089 ,  G02F1/133603 ,  G09G3/342 ,  G09G2300/0452 ,  G09G2320/064 ,  H05B33/0818 ,  H05B33/0857

摘要： Disclosed is a constant current driving unit for constant current driving a plural number of series connected light emitting diodes by a pulse-width modulating constant current driving circuit. Bypass circuits (80A) to 80(E), made up by a plural number of thyristors (81A) to (81E), each connected in parallel with each of series-connected light emitting diodes (41A) to (41E), are provided with gate potential setting circuits (83A) to (83E). These gate potential setting circuits afford to the thyristors a gate potential value such that, when the series-connected light emitting diodes (41A) to (41E) are operating as normally, the thyristors (81A) to (81E) are in the off-state. The gate potential setting circuit affords to the thyristors another gate potential value such that, when the light emitting diodes (41A) to (41E) are in the open state, the thyristors connected in parallel with the light emitting diodes (41A) to (41E) in the opened state will be in a turned-on state.

摘要翻译： 公开了一种恒流驱动单元，用于通过脉冲宽度调制恒流驱动电路驱动多个串联的发光二极管的恒定电流。 旁路电路（80A）至80（E），由多个晶闸管（81A）至（81E）组成，每个与串联连接的发光二极管（41A）至 （83E）设置有栅极电位设定电路（83A）〜（83E）。 这些栅极电位设定电路对晶闸管提供栅极电位值，使得当串联连接的发光二极管（41A）至（41E）正常工作时，晶闸管（81A）至（81E）为 在关闭状态。 所述栅极电位设定电路向所述晶闸管提供另一个栅极电位值，使得当所述发光二极管（41A）至（41E）处于打开状态时，与所述发光二极管（41A）并联连接的晶闸管， 到（41E）处于打开状态将处于打开状态。

公开(公告)号：US20050128374A1

公开(公告)日：2005-06-16

申请号：US10511706

申请日：2004-02-05

申请人： Norimasa Furukawa

发明人： Norimasa Furukawa

IPC分类号： G02F1/13357 ,  F21V8/00 ,  F21Y101/02 ,  F21Y103/00 ,  G02B6/00 ,  G02F1/133 ,  H05B37/02 ,  G02F1/1333

CPC分类号： G02B6/0018 ,  G02B6/0071 ,  G02B6/0078 ,  G09G3/3426 ,  G09G2320/0233 ,  G09G2360/145 ,  G09G2360/16

摘要： A proposed backlight is suitable for a large size liquid crystal display. A backlight 2 for illuminating a liquid crystal panel 3 from the rear, is formed by combining a plurality of backlight units 10, 10, . . . By providing a transparent acrylic board 4 between the backlight 2 and the liquid crystal panel 3, it becomes possible to prevent brightness unevenness from occurring at a junction section of the backlight units 10, 10, . . . , even when the backlight is formed by combining the plurality of the backlight units 10, 10, . . . .

摘要翻译： 所提出的背光适用于大尺寸液晶显示器。 通过组合多个背光单元10,10而形成用于从后方照射液晶面板3的背光源2。 。 。 通过在背光源2和液晶面板3之间设置透明的亚克力板4，可以防止在背光单元10,10的接合部发生亮度不均匀。 。 。 即使通过组合多个背光单元10,10而形成背光也是如此。 。 。 。