Method of driving a light source, light source apparatus for performing the method and display apparatus having the light source apparatus
    21.
    发明授权
    Method of driving a light source, light source apparatus for performing the method and display apparatus having the light source apparatus 有权
    驱动光源的方法,用于执行该方法的光源装置和具有该光源装置的显示装置

    公开(公告)号:US08482510B2

    公开(公告)日:2013-07-09

    申请号:US12617769

    申请日:2009-11-13

    IPC分类号: G09G3/34

    摘要: A light source apparatus includes a light source module, a local dimming control part and a light source driving part. The light source module includes a plurality of light-emitting blocks. Each of the light-emitting blocks includes a first color light source, a second color light source and a third color light source, respectively. The local dimming control part drives the light-emitting blocks by blocks. The local dimming control part sets a reference duty signal for first, second and third color driving signals in accordance with a driving mode of the light source module. The light source driving part generates the first color driving signal, the second color driving signal and the third color driving signal by using the reference duty ratio set in accordance with the driving mode and a driving current having a same peak current level in accordance with the driving mode.

    摘要翻译: 光源装置包括光源模块,局部调光控制部和光源驱动部。 光源模块包括多个发光块。 每个发光块分别包括第一颜色光源,第二彩色光源和第三颜色光源。 局部调光控制部件通过块驱动发光块。 局部调光控制部分根据光源模块的驱动模式设置第一,第二和第三颜色驱动信号的参考占空比信号。 光源驱动部分通过使用根据驱动模式设置的基准占空比和根据该驱动模式具有相同峰值电流电平的驱动电流来产生第一颜色驱动信号,第二颜色驱动信号和第三颜色驱动信号 驾驶模式。

    Backlight unit with controlled power consumption and display apparatus having the same
    22.
    发明授权
    Backlight unit with controlled power consumption and display apparatus having the same 有权
    具有受控功耗的背光单元和具有其的显示装置

    公开(公告)号:US08400073B2

    公开(公告)日:2013-03-19

    申请号:US12689968

    申请日:2010-01-19

    IPC分类号: H05B37/02

    摘要: In a display apparatus having a backlight unit, a light unit includes plural light source strings commonly connected to an output terminal of a boosting circuit to generate light in response to a light source driving voltage. The light source strings are grouped into plural light generating groups. Plural driving circuits are respectively connected to the light generating groups, and each driving circuit sequentially outputs feedback voltages from the light source strings of a corresponding light generating group. A minimum voltage detecting circuit compares the feedback voltages with each other from the driving circuits to detect a minimum voltage and outputs a control signal according to the detected minimum voltage. A voltage control circuit controls a voltage level of the light source driving voltage in response to the control signal. Accordingly, although the number of the driving circuits increases, power consumption used in each driving circuit may be reduced.

    摘要翻译: 在具有背光单元的显示装置中,光单元包括共同连接到升压电路的输出端的多个光源串,以响应于光源驱动电压产生光。 光源串被分组成多个发光组。 多个驱动电路分别连接到发光组,并且每个驱动电路从相应的发光组的光源串中顺序地输出反馈电压。 最小电压检测电路将来自驱动电路的反馈电压相互比较以检测最小电压,并根据检测到的最小电压输出控制信号。 电压控制电路响应于控制信号控制光源驱动电压的电压电平。 因此,尽管驱动电路的数量增加,但是可以减少每个驱动电路中使用的功耗。

    Method of driving light sources, light source driving device for performing the method and display apparatus having the circuit
    23.
    发明授权
    Method of driving light sources, light source driving device for performing the method and display apparatus having the circuit 有权
    驱动光源的方法,用于执行该方法的光源驱动装置和具有该电路的显示装置

    公开(公告)号:US08373645B2

    公开(公告)日:2013-02-12

    申请号:US12499699

    申请日:2009-07-08

    IPC分类号: G09G3/36

    CPC分类号: G09G3/3426

    摘要: A light source driving device includes a resolution analyzing part, a dimming block adjusting part, a local dimming part and a light source unit. The resolution analyzing part obtains an image resolution. The dimming block adjusting part adjusts the size or the number of dimming blocks generating light in a local dimming method in response to the resolution. The local dimming part generates a local dimming signal for individually driving the dimming blocks in response to the image data and the size or the number of dimming blocks. The light source unit is driven by the local dimming signal to generate light. The size or the number of the dimming blocks is adjusted to be optimized for the obtained image resolution, so that regardless of the image resolution, a local dimming signal corresponding to the size and the number of the dimming blocks may be generated.

    摘要翻译: 光源驱动装置包括分辨率分析部分,调光块调节部分,局部调光部分和光源单元。 分辨率分析部分获得图像分辨率。 调光块调整部分根据分辨率调整以局部调光方式产生光的调光块的大小或数量。 本地调光部分响应于图像数据和调光块的大小或数量,产生用于单独驱动调光块的局部调光信号。 光源单元由局部调光信号驱动以产生光。 调整调光块的大小或数量以对于获得的图像分辨率进行优化,使得不管图像分辨率如何,可以产生与调光块的大小和数量相对应的局部调光信号。

    Backlight Unit With Controlled Power Consumption And Display Apparatus Having The Same
    25.
    发明申请
    Backlight Unit With Controlled Power Consumption And Display Apparatus Having The Same 有权
    具有控制功耗的背光单元和具有相同功能的显示设备

    公开(公告)号:US20110012521A1

    公开(公告)日:2011-01-20

    申请号:US12689968

    申请日:2010-01-19

    IPC分类号: H05B37/02

    摘要: In a display apparatus having a backlight unit, a light unit includes plural light source strings commonly connected to an output terminal of a boosting circuit to generate light in response to a light source driving voltage. The light source strings are grouped into plural light generating groups. Plural driving circuits are respectively connected to the light generating groups, and each driving circuit sequentially outputs feedback voltages from the light source strings of a corresponding light generating group. A minimum voltage detecting circuit compares the feedback voltages with each other from the driving circuits to detect a minimum voltage and outputs a control signal according to the detected minimum voltage. A voltage control circuit controls a voltage level of the light source driving voltage in response to the control signal. Accordingly, although the number of the driving circuits increases, power consumption used in each driving circuit may be reduced.

    摘要翻译: 在具有背光单元的显示装置中,光单元包括共同连接到升压电路的输出端的多个光源串,以响应于光源驱动电压产生光。 光源串被分组成多个发光组。 多个驱动电路分别连接到发光组,并且每个驱动电路从相应的发光组的光源串中顺序地输出反馈电压。 最小电压检测电路将来自驱动电路的反馈电压相互比较以检测最小电压,并根据检测到的最小电压输出控制信号。 电压控制电路响应于控制信号控制光源驱动电压的电压电平。 因此,尽管驱动电路的数量增加,但是可以减少每个驱动电路中使用的功耗。

    Light source module and display device including the same
    26.
    发明授权
    Light source module and display device including the same 有权
    光源模块和显示设备包括相同

    公开(公告)号:US09117388B2

    公开(公告)日:2015-08-25

    申请号:US13540411

    申请日:2012-07-02

    IPC分类号: G09G5/00 G09G3/00 G09G3/34

    摘要: An approach is provided for a light source module and a display device including the same. The light source module includes two first light source packages configured to emit light of a first color, one or more second light source packages disposed between the two first light source packages, and a plurality of third light source packages disposed between the two first light source packages and alternately arranged with the one or more second light source packages. The one or more second light source packages are configured to emit light of the first color and the plurality of third light source packages are configured to emit light of a second color. An intensity of light emitted from each of the one or more second light source packages is approximately twice an intensity of light emitted from each of the two first light source packages.

    摘要翻译: 提供了一种用于光源模块和包括该光源模块的显示装置的方法。 光源模块包括被配置为发射第一颜色的光,设置在两个第一光源封装之间的一个或多个第二光源封装的两个第一光源封装以及设置在两个第一光源之间的多个第三光源封装 并且与一个或多个第二光源封装交替布置。 一个或多个第二光源封装被配置为发射第一颜色的光,并且多个第三光源封装被配置为发射第二颜色的光。 从一个或多个第二光源封装中的每一个发射的光的强度大约是从两个第一光源封装中的每个发射的光的强度的两倍。

    Method for driving a light source module and display apparatus for performing the method
    27.
    发明授权
    Method for driving a light source module and display apparatus for performing the method 有权
    用于驱动光源模块的方法和用于执行该方法的显示装置

    公开(公告)号:US09035868B2

    公开(公告)日:2015-05-19

    申请号:US12760369

    申请日:2010-04-14

    IPC分类号: G09G3/36 G09G3/34

    摘要: A method for driving a light source module, the light source module including a plurality of light-emitting blocks, a driving mode of the light-emitting block providing light to a plurality of pixels displaying a unit image is determined by analyzing grayscale values corresponding to the pixels. A second driving signal is applied to the light-emitting block determined to be in a boosting mode, the second driving signal having a level higher than the level of a first driving signal applied to the light-emitting block determined to be in a normal mode.

    摘要翻译: 一种用于驱动光源模块的方法,所述光源模块包括多个发光块,通过分析对应于...的灰度值来确定向显示单元图像的多个像素提供光的发光块的驱动模式 像素。 第二驱动信号被施加到确定为升压模式的发光块,第二驱动信号的电平高于施加到判定为正常模式的发光块的第一驱动信号的电平 。

    METHOD FOR DRIVING A LIGHT SOURCE MODULE AND DISPLAY APPARATUS FOR PERFORMING THE METHOD
    28.
    发明申请
    METHOD FOR DRIVING A LIGHT SOURCE MODULE AND DISPLAY APPARATUS FOR PERFORMING THE METHOD 有权
    用于驱动光源模块的方法和用于执行该方法的显示装置

    公开(公告)号:US20100277514A1

    公开(公告)日:2010-11-04

    申请号:US12760369

    申请日:2010-04-14

    IPC分类号: G09G5/10

    摘要: A method for driving a light source module, the light source module including a plurality of light-emitting blocks, a driving mode of the light-emitting block providing light to a plurality of pixels displaying a unit image is determined by analyzing grayscale values corresponding to the pixels. A second driving signal is applied to the light-emitting block determined to be in a boosting mode, the second driving signal having a level higher than the level of a first driving signal applied to the light-emitting block determined to be in a normal mode.

    摘要翻译: 一种用于驱动光源模块的方法,所述光源模块包括多个发光块,通过分析对应于...的灰度值来确定向显示单元图像的多个像素提供光的发光块的驱动模式 像素。 第二驱动信号被施加到确定为升压模式的发光块,第二驱动信号的电平高于施加到判定为正常模式的发光块的第一驱动信号的电平 。

    METHOD OF LOCAL DIMMING, BACKLIGHT ASSEMBLY FOR PERFORMING THE METHOD AND DISPLAY APPARATUS HAVING THE BACKLIGHT ASSEMBLY
    29.
    发明申请
    METHOD OF LOCAL DIMMING, BACKLIGHT ASSEMBLY FOR PERFORMING THE METHOD AND DISPLAY APPARATUS HAVING THE BACKLIGHT ASSEMBLY 有权
    本地调光方法,用于执行方法的背光组件和具有背光组件的显示装置

    公开(公告)号:US20090189543A1

    公开(公告)日:2009-07-30

    申请号:US12335707

    申请日:2008-12-16

    IPC分类号: H05B37/02

    摘要: In order to perform local dimming, a driving dimming duty cycle is generated using a target gamma curve (TGV), wherein the driving dimming duty cycle corresponds to a representative grayscale value (RGV) of each of a plurality of dimming unit areas. Each of a plurality of light unit blocks of a light source is driven based on the driving dimming duty cycle, wherein the light unit blocks correspond to the dimming unit areas, respectively. Therefore, a display apparatus may display an image having a higher contrast ratio than normal.

    摘要翻译: 为了执行局部调光,使用目标伽马曲线(TGV)产生驱动调光占空比,其中驱动调光占空比对应于多个调光单元区域中的每一个的代表性灰度值(RGV)。 基于驱动调光占空比驱动光源的多个光单元块中的每一个,其中,光单元块分别对应于调光单元区域。 因此,显示装置可以显示具有比正常对比度更高的对比度的图像。