Power control method of light emitting device for image display, light emitting device for image display, display device and television receiver
    1.
    发明授权
    Power control method of light emitting device for image display, light emitting device for image display, display device and television receiver 有权
    用于图像显示的发光装置的电力控制方法,用于图像显示的发光装置,显示装置和电视接收器

    公开(公告)号:US08456495B2

    公开(公告)日:2013-06-04

    申请号:US13063790

    申请日:2009-07-17

    IPC分类号: G09G5/10 G09G3/36

    摘要: In a method of controlling power of a light emitting device for image display that irradiates illumination light from divided regions, light emission brightness data of each light emitting element of the light emitting device is determined based on image data for image display (S20). Power in each region and total light emission power are computed based on the light emission brightness data of each light emitting element for each region (S40). If the computed total light emission power exceeds predetermined allowable power, the power in each region is limited so that the total light emission power is equal to or less than the predetermined allowable power (S50).

    摘要翻译: 在对从分割区域照射照明光的图像显示用发光装置的电力进行控制的方法中,基于图像显示用图像数据确定发光装置的各发光元件的发光亮度数据(S20)。 基于每个区域的每个发光元件的发光亮度数据计算每个区域的功率和总发光功率(S40)。 如果计算出的总发光功率超过预定的容许功率,则限制每个区域的功率,使得总的发光功率等于或小于预定的容许功率(S50)。

    LIQUID CRYSTAL DISPLAY DEVICE
    2.
    发明申请
    LIQUID CRYSTAL DISPLAY DEVICE 审中-公开
    液晶显示装置

    公开(公告)号:US20110199401A1

    公开(公告)日:2011-08-18

    申请号:US13122973

    申请日:2009-07-22

    IPC分类号: G09G3/36 G09G5/02

    摘要: A liquid crystal display device 100 includes thermistors 28 provided separately from light-emitting diodes 22 in an area where the light-emitting diodes 22 are arranged, and a light emission control section 201 for controlling a voltage to be applied to the light-emitting diodes 22. Based on temperature information obtained from the thermistors 28, the light emission control section 201 decreases a target value v1 of the voltage to be applied to the light-emitting diodes 22 as the temperature increases and increases the target value v1 of the voltage to be applied to the light-emitting diodes 22 as the temperature decreases.

    摘要翻译: 液晶显示装置100包括与布置有发光二极管22的区域中的发光二极管22分开设置的热敏电阻28,以及用于控制施加到发光二极管的电压的发光控制部201 基于从热敏电阻28获得的温度信息,发光控制部分201随着温度升高而减小施加到发光二极管22的电压的目标值v1,并将电压的目标值v1增加到 随着温度降低而施加到发光二极管22。

    LIGHT EMITTING DEVICE FOR IMAGE DISPLAY, IMAGE DISPLAY APPARATUS, AND LED DRIVER
    4.
    发明申请
    LIGHT EMITTING DEVICE FOR IMAGE DISPLAY, IMAGE DISPLAY APPARATUS, AND LED DRIVER 有权
    用于图像显示的发光装置,图像显示装置和LED驱动器

    公开(公告)号:US20120299979A1

    公开(公告)日:2012-11-29

    申请号:US13522107

    申请日:2010-11-16

    IPC分类号: G09G5/10 G09G3/36 H05B37/02

    摘要: Specifically provided is a light emitting device for image display, wherein each of light emitting elements, a PWM control unit which PWM-controls a current to be supplied to the light emitting element, a control condition setting unit which, according to the APL of image data, determines and updatably sets the PWM limiting condition for limiting the PWM value that is the duty ratio of the PWM control, and the reference current value that is the value of the current flowing to the light emitting element in response to turn-on of the PWM control, and a PWM value calculation unit which on the basis of the image data, the PWM limit condition, and the reference current value, calculates the PWM value of each area, and the PWM control unit performs the PWM control on the basis of the reference current value and the calculated PWM value.

    摘要翻译: 具体提供了一种用于图像显示的发光装置,其中每个发光元件,PWM控制要供给到发光元件的电流的PWM控制单元,根据图像的APL的控制条件设置单元 数据,确定和可更新地设置用于限制作为PWM控制的占空比的PWM值的PWM限制条件,以及作为响应于接通的流向发光元件的电流的值的参考电流值 PWM控制和PWM值计算单元,基于图像数据,PWM限制条件和基准电流值,计算每个区域的PWM值,PWM控制单元基于该PWM值进行PWM控制 的参考电流值和计算出的PWM值。

    IMAGE DISPLAY APPARATUS, DRIVER APPARATUS, AND BACKLIGHT UNIT
    5.
    发明申请
    IMAGE DISPLAY APPARATUS, DRIVER APPARATUS, AND BACKLIGHT UNIT 审中-公开
    图像显示装置,驱动装置和背光单元

    公开(公告)号:US20130120481A1

    公开(公告)日:2013-05-16

    申请号:US13812146

    申请日:2011-04-20

    IPC分类号: G09G3/34 G09G5/10

    摘要: An image display apparatus comprising: a driver apparatus; and a total of N device groups of a first group to an N-th group (2≦N) each of which includes one or a plurality of light emitting devices, the image display apparatus uses the driver apparatus to make each of the device groups emit light preventing light emission capable periods from overlapping one another and displays an image by using the obtained light as backlight; wherein the driver apparatus includes: a power output circuit that outputs light emission power used for the light emission of the light emitting device; and a switch mechanism that switches, in accordance with arrival of the light emission capable period of a device group K (1≦K≦N), an output destination of the light emission power output from the power output circuit to the device group K.

    摘要翻译: 一种图像显示装置,包括:驱动器装置; 以及包括一个或多个发光装置的第一组的N个装置组到第N组(2 @ N),图像显示装置使用驱动器装置来使每个装置组 防止发光能力的时段彼此重叠,并通过使用所获得的光作为背光来显示图像; 其中所述驱动器装置包括:功率输出电路,其输出用于所述发光器件的发光的发光功率; 以及根据设备组K(1 @ K @ N)的发光能力期间的到达将从功率输出电路输出的发光功率的输出目的地切换到设备组K的开关机构。

    DRIVER DEVICE, BACKLIGHT UNIT, AND IMAGE DISPLAY APPARATUS
    6.
    发明申请
    DRIVER DEVICE, BACKLIGHT UNIT, AND IMAGE DISPLAY APPARATUS 审中-公开
    驱动装置,背光单元和图像显示装置

    公开(公告)号:US20120147066A1

    公开(公告)日:2012-06-14

    申请号:US13390564

    申请日:2010-03-10

    IPC分类号: G09G3/36 G09G3/32 G09G5/10

    摘要: Disclosed is a backlight unit (16) for supplying backlight to a liquid crystal panel (15a), the backlight unit being provided with a plurality of LEDs (16b) that function as a light source of the backlight, and an LED driver (5) that comprises a plurality of control channels (1-12 ch) to each of which one or more of the LEDs are connected, and that PWM-controls lighting of the connected LEDs. The LED driver (5) can set the frequency or phase of the PWM control independently for each of the control channels (1-12 ch). Consequently, the flexibility of control of LEDs can be increased while the number of necessary LED drivers is reduced to a minimum.

    摘要翻译: 公开了一种用于向液晶面板(15a)提供背光的背光单元(16),背光单元设置有用作背光源的光源的多个LED(16b)和LED驱动器(5) 其包括多个控制通道(1-12ch),其中一个或多个LED连接到其中的每一个,并且PWM控制连接的LED的点亮。 LED驱动器(5)可以为每个控制通道(1-12ch)单独设置PWM控制的频率或相位。 因此,可以增加控制LED的灵活性,同时将必要的LED驱动器的数量减少到最小。

    Liquid Crystal Display Device And Light Source Control Method
    7.
    发明申请
    Liquid Crystal Display Device And Light Source Control Method 审中-公开
    液晶显示装置及光源控制方法

    公开(公告)号:US20120086740A1

    公开(公告)日:2012-04-12

    申请号:US13378227

    申请日:2010-03-03

    IPC分类号: G09G3/36 G09G5/10

    摘要: In at least one example embodiment, the present invention includes a liquid crystal display panel for displaying an image by virtue of having liquid crystals whose orientation changes in response to application of a voltage; a backlight unit with a built-in PWM light modulation type LED for emitting light to be supplied to the liquid crystal display panel; and a control unit for controlling the liquid crystal display panel and the backlight unit. In cases where the response speed of liquid crystal molecules is relatively high, the LED is driven at a relatively low drive frequency, whereas in cases where the response speed of the liquid crystal molecules is relatively low, the LED is driven at a relatively high drive frequency. According to the present invention, problems with image quality that tend to occur depending on the degree of tilting of the liquid crystal molecules (ghost outlines) are prevented.

    摘要翻译: 在至少一个示例性实施例中,本发明包括一种液晶显示面板,用于通过具有响应于施加电压的方向改变的液晶来显示图像; 具有内置PWM调制型LED的背光单元,用于发射供给到液晶显示面板的光; 以及用于控制液晶显示面板和背光单元的控制单元。 在液晶分子的响应速度相对较高的情况下,以相对低的驱动频率驱动LED,而在液晶分子的响应速度相对较低的情况下,LED以较高的驱动速度驱动 频率。 根据本发明,防止了根据液晶分子的倾斜度(鬼影轮廓)倾向于发生的图像质量的问题。

    BACKLIGHT DRIVE DEVICE AND DISPLAY DEVICE HAVING SAME
    8.
    发明申请
    BACKLIGHT DRIVE DEVICE AND DISPLAY DEVICE HAVING SAME 审中-公开
    背光驱动装置和显示装置

    公开(公告)号:US20110248974A1

    公开(公告)日:2011-10-13

    申请号:US12998924

    申请日:2010-01-29

    IPC分类号: G09G5/10 H05B37/02

    摘要: Backlight drive units included in a backlight drive device of at least one embodiment of the present invention each have a plurality of metal pads functioning as a plurality of address setting terminals. To provide a potential for setting a unique address by coming into contact with the metal pads, metal protrusions are provided at corresponding locations of a backlight housing. A backlight drive control unit is directly connected to each unit through an IIC bus by a bus scheme and receives, via the IIC bus, a detected amount of light and temperature from each unit identified by the address. With such a simple configuration, a unique address can be automatically set for each unit, obtaining the commonization of backlight drive units.

    摘要翻译: 包括在本发明的至少一个实施例的背光驱动装置中的背光驱动单元各自具有用作多个地址设置端子的多个金属焊盘。 为了提供通过与金属焊盘接触来设置唯一地址的可能性,在背光外壳的相应位置处提供金属突起。 背光驱动控制单元通过总线方案通过IIC总线直接连接到每个单元,并通过IIC总线接收来自由该地址识别的每个单元的检测到的光量和温度。 通过这样简单的配置,可以为每个单元自动设置唯一的地址,从而获得背光驱动单元的通用性。

    LIGHT EMITTING DEVICE FOR IMAGE DISPLAY, AND IMAGE DISPLAY DEVICE
    10.
    发明申请
    LIGHT EMITTING DEVICE FOR IMAGE DISPLAY, AND IMAGE DISPLAY DEVICE 有权
    用于图像显示的发光装置和图像显示装置

    公开(公告)号:US20120299891A1

    公开(公告)日:2012-11-29

    申请号:US13522115

    申请日:2010-11-10

    IPC分类号: G09G5/00

    摘要: The light emitting device is divided into a plurality of areas, and has, as main configuration elements, an area drive circuit (2), which generates LED data and LCD data, an LED controller (4), and a backlight unit (5), which is provided with a plurality of LEDs (52) corresponding to each of the areas. The power calculating unit of the LED controller (4) is mainly configured of a power calculating circuit (42), a power limiter circuit (43), and a limit value updating circuit (45), and the emission power to be supplied to each of the LEDs (52) is calculated for each are on the basis of image data. The power calculating unit performs the calculation such that the sum (Psum) of the emission power does not exceed a power limit value (Plimit) currently set, and updates the power limit value (Plimit) by following a previously set pattern.

    摘要翻译: 发光装置分为多个区域,作为主要构成要素,具有产生LED数据和LCD数据的区域驱动电路(2),LED控制器(4)和背光单元(5) ,其设置有对应于每个区域的多个LED(52)。 LED控制器(4)的功率计算单元主要由功率计算电路(42),功率限制器电路(43)和限制值更新电路(45)构成,并且向每个 根据图像数据计算每个LED(52)。 功率计算单元执行计算,使得发射功率的总和(Psum)不超过当前设置的功率限制值(Plimit),并且通过遵循预先设定的模式来更新功率限制值(Plimit)。