LED driver
    31.
    发明申请
    LED driver 有权
    LED驱动器

    公开(公告)号:US20060181485A1

    公开(公告)日:2006-08-17

    申请号:US11262807

    申请日:2005-11-01

    IPC分类号: G09G3/14

    摘要: The present invention relates to an LED driver for driving light emitting diodes. The LED driver comprises a linear mode driver to increase and decrease a linear mode current to make a current flow in the LED at a predetermined target current value and output it to the LED; and a switch mode driver to increase and decrease a switch mode current depending on whether the linear mode current exceeds a predetermined reference current value and output it to the LED. Thus, the present invention provides an LED driver having high power efficiency and light efficiency and minimal distortions of a driving current.

    摘要翻译: 本发明涉及用于驱动发光二极管的LED驱动器。 LED驱动器包括线性模式驱动器,用于增加和减少线性模式电流,以使电流在LED中以预定的目标电流值流动并将其输出到LED; 以及开关模式驱动器,用于根据线性模式电流是否超过预定的参考电流值来增加和减少开关模式电流,并将其输出到LED。 因此,本发明提供了具有高功率效率和光效率以及驱动电流的最小失真的LED驱动器。

    Light emitting device and method of controlling the same using a differential amplifier
    32.
    发明授权
    Light emitting device and method of controlling the same using a differential amplifier 有权
    发光装置及其使用差动放大器进行控制的方法

    公开(公告)号:US08605068B2

    公开(公告)日:2013-12-10

    申请号:US11634842

    申请日:2006-12-07

    CPC分类号: H05B33/0851 H05B33/0815

    摘要: Provided is a light emitting device and a method of controlling the same are disclosed. The light emitting unit includes a power supply unit for supplying a drive voltage to the light emitting unit, and a control unit for comparing a first current level previously applied to the light emitting unit with a second current level to be applied to the light emitting unit in accordance with image information to be displayed using the light emitting unit, and controlling a voltage level applied to the light emitting unit based on a result of comparison.

    摘要翻译: 提供了一种发光器件及其控制方法。 发光单元包括用于向发光单元提供驱动电压的电源单元和用于将先前施加到发光单元的第一电流水平与施加到发光单元的第二电流电平进行比较的控制单元 根据要使用发光单元显示的图像信息,以及基于比较的结果控制施加到发光单元的电压电平。

    Light emitting apparatus and control method thereof
    33.
    发明授权
    Light emitting apparatus and control method thereof 失效
    发光装置及其控制方法

    公开(公告)号:US08284133B2

    公开(公告)日:2012-10-09

    申请号:US11651570

    申请日:2007-01-10

    IPC分类号: G09G3/32

    CPC分类号: G09G3/3406 G09G2320/064

    摘要: A light emitting apparatus includes: a plurality of light emitting parts connected in series; a current supplying part supplying current to the plurality of light emitting parts; a plurality of current switches connected in parallel to the plurality of light emitting parts, respectively, and causing the current to flow through the light emitting parts or bypass the light emitting parts; and a controlling part receiving brightness information corresponding to the plurality of light emitting parts and outputting pulse width modulation signals to the current switches so that emission time of the plurality of light emitting parts is separately adjusted based on the received brightness information.

    摘要翻译: 发光装置包括:串联连接的多个发光部; 向所述多个发光部供给电流的电流供给部; 分别与所述多个发光部并联连接的多个电流开关,使所述电流流过所述发光部,或者旁路所述发光部; 以及控制部分,接收对应于所述多个发光部分的亮度信息并将脉冲宽度调制信号输出到所述电流开关,使得所述多个发光部件的发光时间基于所接收的亮度信息被单独调节。

    Apparatus for generating ramp reset waveform for display panel and design method therefor
    35.
    发明申请
    Apparatus for generating ramp reset waveform for display panel and design method therefor 失效
    用于生成显示面板的斜坡复位波形的装置及其设计方法

    公开(公告)号:US20050140590A1

    公开(公告)日:2005-06-30

    申请号:US11003321

    申请日:2004-12-06

    摘要: A ramp reset waveform generating apparatus in a display panel driving apparatus for a display panel includes a current source which is connected to a first electrode sustain circuit of the display panel through a first terminal of the current source, and generates a current corresponding to a predetermined reference current; a first switching unit which switches current flow between a second terminal of the current source and a first electrode terminal of the display panel; and a second switching unit which switches current flow between the second terminal of the current source and a second electrode terminal of the display panel, wherein, in a reset period, a ramp reset waveform is generated in the first electrode terminal and the second electrode terminal by the charge or discharge process of the display panel by the current generated in the current source according to a predetermined switching sequence.

    摘要翻译: 用于显示面板的显示面板驱动装置中的斜坡复位波形发生装置包括:电流源,其通过电流源的第一端子连接到显示面板的第一电极维持电路,并产生对应于预定的 参考电流; 第一切换单元,其切换电流源的第二端子与显示面板的第一电极端子之间的电流; 以及第二开关单元,其切换电流源的第二端子与显示面板的第二电极端子之间的电流,其中在复位时段中,在第一电极端子和第二电极端子中产生斜坡复位波形 通过根据预定的切换顺序在电流源中产生的电流对显示面板进行充电或放电处理。

    LED driving apparatus, method for driving LED, and display apparatus thereof
    36.
    发明授权
    LED driving apparatus, method for driving LED, and display apparatus thereof 有权
    LED驱动装置,LED驱动方法及其显示装置

    公开(公告)号:US09123298B2

    公开(公告)日:2015-09-01

    申请号:US13617278

    申请日:2012-09-14

    IPC分类号: H05B37/02 G09G3/34 H05B33/08

    摘要: A display apparatus is provided. The display apparatus includes a display panel which displays an image, a LED module which provides backlight to the display panel, a LED driving unit which selectively uses current of an inductor to apply driving voltage to the LED module, a sensing unit which senses a current value of the inductor, and a switching control unit which adjusts the driving voltage according to sensing result by the sensing unit.

    摘要翻译: 提供一种显示装置。 显示装置包括显示图像的显示面板,向显示面板提供背光的LED模块,选择性地使用电感器的电流以向LED模块施加驱动电压的LED驱动单元,感测电流的感测单元 电感器的值,以及根据感测单元的感测结果来调节驱动电压的开关控制单元。

    Light source driving apparatus, light source driving method, and display apparatus
    37.
    发明授权
    Light source driving apparatus, light source driving method, and display apparatus 有权
    光源驱动装置,光源驱动方法和显示装置

    公开(公告)号:US08648790B2

    公开(公告)日:2014-02-11

    申请号:US12364909

    申请日:2009-02-03

    申请人: Jeong-il Kang

    发明人: Jeong-il Kang

    IPC分类号: G09G3/34

    CPC分类号: H05B33/083

    摘要: A light source driving apparatus includes: a switching driver which performs switched-mode power conversion and outputs a first current toward a light source, to control quantity of light emitted from the light source; and a current bypasser which bypasses at least a part of the first current so that a second current branched from the first current flows in the light source.

    摘要翻译: 一种光源驱动装置,包括:开关驱动器,进行开关模式电力转换,并向光源输出第一电流,以控制从光源发出的光量; 以及旁路第一电流的至少一部分的电流旁路,使得从第一电流分支的第二电流在光源中流动。

    Display apparatus and control method thereof
    38.
    发明授权
    Display apparatus and control method thereof 有权
    显示装置及其控制方法

    公开(公告)号:US08502767B2

    公开(公告)日:2013-08-06

    申请号:US11762519

    申请日:2007-06-13

    IPC分类号: G09G3/36

    摘要: A display apparatus comprising a display unit and a plurality of light emitting diodes (LEDs) provided in a backlight that illuminates the display unit, the display apparatus includes: a power supplier; a current detector which detects a value of a current flowing in each of the LEDs; a current adjusting unit which compares a target current value which is supplied to the LED with a current value detected by the current detector and controls the value of the current flowing in the LED; and a controller which determines the target current value based on grayscale information of a video signal which is displayed on the display unit, provides the target current value to the current adjusting unit, and provides a virtual target current value that is higher than the target current value to the current adjusting unit for a predetermined time period if the target current value is determined.

    摘要翻译: 一种显示装置,包括显示单元和设置在照明所述显示单元的背光中的多个发光二极管(LED),所述显示装置包括:电源; 电流检测器,其检测在每个LED中流动的电流的值; 电流调节单元,其将提供给LED的目标电流值与由电流检测器检测的电流值进行比较,并控制在LED中流动的电流的值; 以及控制器,其基于显示在显示单元上的视频信号的灰阶信息来确定目标电流值,将目标电流值提供给当前调整单元,并提供高于目标电流的虚拟目标电流值 如果确定了目标电流值,则预定时间段内的当前调整单元的值。

    LED driver
    40.
    发明授权
    LED driver 有权
    LED驱动器

    公开(公告)号:US07394444B2

    公开(公告)日:2008-07-01

    申请号:US11262807

    申请日:2005-11-01

    IPC分类号: G09G3/36

    摘要: The present invention relates to an LED driver for driving light emitting diodes. The LED driver comprises a linear mode driver to increase and decrease a linear mode current to make a current flow in the LED at a predetermined target current value and output it to the LED; and a switch mode driver to increase and decrease a switch mode current depending on whether the linear mode current exceeds a predetermined reference current value and output it to the LED. Thus, the present invention provides an LED driver having high power efficiency and light efficiency and minimal distortions of a driving current.

    摘要翻译: 本发明涉及用于驱动发光二极管的LED驱动器。 LED驱动器包括线性模式驱动器,用于增加和减少线性模式电流,以使电流在LED中以预定的目标电流值流动并将其输出到LED; 以及开关模式驱动器,用于根据线性模式电流是否超过预定的参考电流值来增加和减少开关模式电流,并将其输出到LED。 因此,本发明提供了具有高功率效率和光效率以及驱动电流的最小失真的LED驱动器。