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1. 发明申请

US20090096724A1 Display apparatus, quantity-of-light adjusting method for display apparatus and electronic equipment 有权
标题翻译：显示装置，显示装置和电子设备的光量调节方法
公开(公告)号：US20090096724A1
公开(公告)日：2009-04-16
申请号：US12287178
申请日：2008-10-07
申请人： Hiroaki Ichikawa , Kenichi Kikuchi , Kimio Hatajiri
发明人： Hiroaki Ichikawa , Kenichi Kikuchi , Kimio Hatajiri
IPC分类号： G09G3/22
CPC分类号： H05B33/0869 , G09G2320/041 , G09G2320/064 , G09G2320/0666 , G09G2360/145
摘要： A display apparatus includes display means for displaying an image, a light source that irradiates light to the display means, and control means for controlling the quantity of light of the light source with pulse width modulation. The control means controls the quantity of light of the light source based on the ratio of the light-on period with pulse width modulation to the light-off period when the light source is turned off.
摘要翻译：显示装置包括用于显示图像的显示装置，向显示装置照射光的光源以及用于通过脉宽调制来控制光源的光量的控制装置。控制装置根据导通周期与脉冲宽度调制与光源关闭时的熄灭时间的比率来控制光源的光量。

2. 发明授权

US08830157B2 Display apparatus, quantity-of-light adjusting method for display apparatus and electronic equipment 有权
标题翻译：显示装置，显示装置和电子设备的光量调节方法
公开(公告)号：US08830157B2
公开(公告)日：2014-09-09
申请号：US12287178
申请日：2008-10-07
申请人： Hiroaki Ichikawa , Kenichi Kikuchi , Kimio Hatajiri
发明人： Hiroaki Ichikawa , Kenichi Kikuchi , Kimio Hatajiri
IPC分类号： G09G3/34 , H05B33/08
CPC分类号： H05B33/0869 , G09G2320/041 , G09G2320/064 , G09G2320/0666 , G09G2360/145
摘要： A display apparatus includes display means for displaying an image, a light source that irradiates light to the display means, and control means for controlling the quantity of light of the light source with pulse width modulation. The control means controls the quantity of light of the light source based on the ratio of the light-on period with pulse width modulation to the light-off period when the light source is turned off.
摘要翻译：显示装置包括用于显示图像的显示装置，向显示装置照射光的光源以及用于通过脉宽调制来控制光源的光量的控制装置。控制装置根据导通周期与脉冲宽度调制与光源关闭时的熄灭时间的比率来控制光源的光量。

3. 发明申请

US20080121780A1 Light source device, light source driving device, light emission amount control device and liquid crystal display 有权
标题翻译：光源装置，光源驱动装置，发光量控制装置和液晶显示器
公开(公告)号：US20080121780A1
公开(公告)日：2008-05-29
申请号：US11975368
申请日：2007-10-18
申请人： Hiroaki Ichikawa , Kenichi Kikuchi , Kimio Hatajiri
发明人： Hiroaki Ichikawa , Kenichi Kikuchi , Kimio Hatajiri
IPC分类号： G01J1/32
CPC分类号： G09G3/3413 , G09G3/3611 , G09G2310/0235 , G09G2320/0233 , G09G2320/064
摘要： A light source device capable of further reducing fluctuations in the intensity or the like of illumination light with a simple configuration is provided. The light source device may include a light source including a plurality of lighting sections controllable independently of one another; a drive means for driving the light source so that the lighting sections are sequentially turned on; a light-sensing device receiving light from the light source in which the lighting sections are sequentially turned on; and a control means for controlling the drive means on the basis of a light receiving signal obtained by the light-sensing device from a specific lighting section so as to control the light emission amount of each lighting section.
摘要翻译：提供能够以简单的结构进一步减少照明光的强度等的波动的光源装置。光源装置可以包括光源，其包括彼此独立控制的多个照明部分; 用于驱动光源的驱动装置，使得照明部分顺序地接通; 从光源接收光的感光装置，其中照明部分顺序地接通; 以及控制装置，用于根据由感光装置从特定照明部分获得的光接收信号来控制驱动装置，以便控制每个照明部分的发光量。

4. 发明授权

US07295180B2 Backlight driving device, backlight driving method, and liquid crystal display device 有权
标题翻译：背光驱动装置，背光驱动方法和液晶显示装置
公开(公告)号：US07295180B2
公开(公告)日：2007-11-13
申请号：US11281153
申请日：2005-11-17
申请人： Hiroaki Ichikawa , Kenichi Kikuchi , Kimio Hatajiri
发明人： Hiroaki Ichikawa , Kenichi Kikuchi , Kimio Hatajiri
IPC分类号： G09G3/36 , H05B37/02
CPC分类号： G09G3/342 , G09G2320/041 , G09G2320/064 , G09G2320/0666 , G09G2330/021 , G09G2330/026 , G09G2360/145
摘要： A backlight driving device for controlling driving of a backlight device for display, the backlight device generating predetermined white light by mixing light from a plurality of light emitting diodes of three or more colors, the backlight driving device including: storing device for storing an initial amount of current and a predetermined multiplication coefficient for each color; light quantity detecting device for detecting a light quantity for each color; and controlling device for adjusting an amount of current passed through the light emitting diodes of each color by feedback control on a basis of a detection output from the light quantity detecting device with an amount of current obtained by multiplying the initial amount of current by the predetermined multiplication coefficient as an initial value, whereby the predetermined white light is generated; wherein when a difference between the amount of current after the feedback control and the initial amount of current exceeds a predetermined threshold value, the controlling device updates the multiplication coefficient according to the amount of current after the feedback control.
摘要翻译：一种用于控制用于显示的背光装置的驱动的背光驱动装置，所述背光装置通过混合来自多种颜色的多个发光二极管的光来产生预定的白光，所述背光驱动装置包括：用于存储初始量的存储装置的电流和每种颜色的预定乘法系数; 光量检测装置，用于检测每种颜色的光量; 以及控制装置，用于通过基于来自光量检测装置的检测输出的反馈控制来调整通过每种颜色的发光二极管的电流量，其中通过将初始电流量乘以预定的电流而获得的电流量乘法系数作为初始值，由此产生预定的白光; 其中，当所述反馈控制后的电流量与所述初始电流量之间的差超过预定阈值时，所述控制装置根据所述反馈控制后的电流量来更新所述乘法系数。

5. 发明授权

US07982706B2 Backlight device, method of driving backlight and liquid crystal display apparatus 失效
标题翻译：背光装置，背光驱动方法及液晶显示装置
公开(公告)号：US07982706B2
公开(公告)日：2011-07-19
申请号：US11283148
申请日：2005-11-18
申请人： Hiroaki Ichikawa , Kenichi Kikuchi , Kimio Hatajiri
发明人： Hiroaki Ichikawa , Kenichi Kikuchi , Kimio Hatajiri
IPC分类号： G09G3/36
CPC分类号： G09G3/3413 , G02F1/133611 , G09G3/342 , G09G2320/041 , G09G2320/0633 , G09G2320/064 , G09G2320/0666 , G09G2330/026 , G09G2360/145
摘要： The present invention prevents extension of the time period from powering on a device to convergence of chromaticity of emitted white light on a certain chromaticity, irrespective of the temperature when the device is powered on. A color liquid crystal display apparatus includes a liquid crystal display unit, a backlight employing LEDs of red, green and blue as its light source, a drive unit for driving the LEDs of each color, a temperature sensor for sensing the temperature of the LEDs, and a chromaticity sensor for sensing the chromaticity of white light emitted from the LEDs. The drive unit supplies a current to the LEDs to drive them, and implements feedback control of the amount of current for the LEDs of each color based on a value sensed by the chromaticity sensor so that the white light has a certain chromaticity. Furthermore, upon powering on the backlight, the drive unit retrieves initial current values of the LEDs of each color from a non-volatile memory, and corrects the initial current values according to a value sensed by the temperature sensor to activate the LEDs of each color with the corrected value.
摘要翻译：本发明防止了当设备通电时，不考虑设备的温度，延长设备上的时间段到所发射的白光的色度收敛到某一色度。一种彩色液晶显示装置，包括液晶显示单元，采用红色，绿色和蓝色LED作为其光源的背光源，驱动每种颜色的LED的驱动单元，用于感测LED的温度的温度传感器，以及用于感测从LED发出的白光的色度的色度传感器。驱动单元向LED提供电流以驱动它们，并且基于由色度传感器感测的值来实现每种颜色的LED的电流量的反馈控制，使得白光具有一定的色度。此外，在对背光进行供电时，驱动单元从非易失性存储器检索每种颜色的LED的初始电流值，并且根据由温度传感器感测的值来校正初始电流值，以激活每种颜色的LED 具有校正值。

6. 发明授权

US07507943B2 Light source for LCD with individually controlled sections 有权
标题翻译：液晶显示屏的光源，具有单独控制的部分
公开(公告)号：US07507943B2
公开(公告)日：2009-03-24
申请号：US11975368
申请日：2007-10-18
申请人： Hiroaki Ichikawa , Kenichi Kikuchi , Kimio Hatajiri
发明人： Hiroaki Ichikawa , Kenichi Kikuchi , Kimio Hatajiri
IPC分类号： H01J40/14 , G02F1/13
CPC分类号： G09G3/3413 , G09G3/3611 , G09G2310/0235 , G09G2320/0233 , G09G2320/064
摘要： A light source device capable of further reducing fluctuations in the intensity or the like of illumination light with a simple configuration is provided. The light source device may include a light source including a plurality of lighting sections controllable independently of one another; a drive means for driving the light source so that the lighting sections are sequentially turned on; a light-sensing device receiving light from the light source in which the lighting sections are sequentially turned on; and a control means for controlling the drive means on the basis of a light receiving signal obtained by the light-sensing device from a specific lighting section so as to control the light emission amount of each lighting section.
摘要翻译：提供能够以简单的结构进一步减少照明光的强度等的波动的光源装置。光源装置可以包括光源，其包括彼此独立控制的多个照明部分; 用于驱动光源的驱动装置，使得照明部分顺序地接通; 从光源接收光的感光装置，其中照明部分顺序地接通; 以及控制装置，用于根据由感光装置从特定照明部分获得的光接收信号来控制驱动装置，以便控制每个照明部分的发光量。

7. 发明申请

US20060125773A1 Backlight device, method of driving backlight and liquid crystal display apparatus 失效
标题翻译：背光装置，背光驱动方法及液晶显示装置
公开(公告)号：US20060125773A1
公开(公告)日：2006-06-15
申请号：US11283148
申请日：2005-11-18
申请人： Hiroaki Ichikawa , Kenichi Kikuchi , Kimio Hatajiri
发明人： Hiroaki Ichikawa , Kenichi Kikuchi , Kimio Hatajiri
IPC分类号： G09G3/36
CPC分类号： G09G3/3413 , G02F1/133611 , G09G3/342 , G09G2320/041 , G09G2320/0633 , G09G2320/064 , G09G2320/0666 , G09G2330/026 , G09G2360/145
摘要： The present invention prevents extension of the time period from powering on a device to convergence of chromaticity of emitted white light on a certain chromaticity, irrespective of the temperature when the device is powered on. A color liquid crystal display apparatus includes a liquid crystal display unit, a backlight employing LEDs of red, green and blue as its light source, a drive unit for driving the LEDs of each color, a temperature sensor for sensing the temperature of the LEDs, and a chromaticity sensor for sensing the chromaticity of white light emitted from the LEDs. The drive unit supplies a current to the LEDs to drive them, and implements feedback control of the amount of current for the LEDs of each color based on a value sensed by the chromaticity sensor so that the white light has a certain chromaticity. Furthermore, upon powering on the backlight, the drive unit retrieves initial current values of the LEDs of each color from a non-volatile memory, and corrects the initial current values according to a value sensed by the temperature sensor to activate the LEDs of each color with the corrected value.
摘要翻译：本发明防止了当设备通电时，不考虑设备的温度，延长设备上的时间段到所发射的白光的色度收敛到某一色度。一种彩色液晶显示装置，包括液晶显示单元，采用红色，绿色和蓝色LED作为其光源的背光源，驱动每种颜色的LED的驱动单元，用于感测LED的温度的温度传感器，以及用于感测从LED发出的白光的色度的色度传感器。驱动单元向LED提供电流以驱动它们，并且基于由色度传感器感测的值来实现每种颜色的LED的电流量的反馈控制，使得白光具有一定的色度。此外，在对背光进行供电时，驱动单元从非易失性存储器检索每种颜色的LED的初始电流值，并且根据由温度传感器感测的值来校正初始电流值，以激活每种颜色的LED 具有校正值。

8. 发明申请

US20060109389A1 Backlight driving device, backlight driving method, and liquid crystal display device 有权
标题翻译：背光驱动装置，背光驱动方法和液晶显示装置
公开(公告)号：US20060109389A1
公开(公告)日：2006-05-25
申请号：US11281153
申请日：2005-11-17
申请人： Hiroaki Ichikawa , Kenichi Kikuchi , Kimio Hatajiri
发明人： Hiroaki Ichikawa , Kenichi Kikuchi , Kimio Hatajiri
IPC分类号： G02F1/13
CPC分类号： G09G3/342 , G09G2320/041 , G09G2320/064 , G09G2320/0666 , G09G2330/021 , G09G2330/026 , G09G2360/145
摘要： A backlight driving device for controlling driving of a backlight device for display, the backlight device generating predetermined white light by mixing light from a plurality of light emitting diodes of three or more colors, the backlight driving device including: storing means for storing an initial amount of current and a predetermined multiplication coefficient for each color; light quantity detecting means for detecting a light quantity for each color; and controlling means for adjusting an amount of current passed through the light emitting diodes of each color by feedback control on a basis of a detection output from the light quantity detecting means with an amount of current obtained by multiplying the initial amount of current by the predetermined multiplication coefficient as an initial value, whereby the predetermined white light is generated; wherein when a difference between the amount of current after the feedback control and the initial amount of current exceeds a predetermined threshold value, the controlling means updates the multiplication coefficient according to the amount of current after the feedback control.
摘要翻译：一种用于控制用于显示的背光装置的驱动的背光驱动装置，所述背光装置通过混合来自三种或更多种颜色的多个发光二极管的光来产生预定的白光，所述背光驱动装置包括：存储装置，用于存储初始量的电流和每种颜色的预定乘法系数; 光量检测装置，用于检测每种颜色的光量; 以及控制装置，用于通过基于来自光量检测装置的检测输出的反馈控制来调整通过每种颜色的发光二极管的电流量，其中通过将初始电流量乘以预定的电流而获得的电流量乘法系数作为初始值，由此产生预定的白光; 其中当所述反馈控制之后的电流量与所述初始电流量之间的差超过预定阈值时，所述控制装置根据所述反馈控制之后的电流量来更新所述乘法系数。

9. 发明授权

US08174487B2 Display unit and backlight unit 有权
标题翻译：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。

10. 发明申请

US20090021178A1 Apparatus and method for driving backlight unit 有权
标题翻译：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。

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