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    • 6. 发明申请
    • METHOD AND DEVICE FOR DRIVING AN ACTIVE MATRIX DISPLAY PANEL
    • 用于驱动有源矩阵显示面板的方法和装置
    • WO2004097781A1
    • 2004-11-11
    • PCT/IB2004/001227
    • 2004-04-15
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.SEMPEL, AdrianusHEKSTRA, Gerben, J.FISH, David, A.KNAPP, Alan, G.GIRALDO, AndreaJOHNSON, Mark, T.
    • SEMPEL, AdrianusHEKSTRA, Gerben, J.FISH, David, A.KNAPP, Alan, G.GIRALDO, AndreaJOHNSON, Mark, T.
    • G09G3/32
    • G09G3/3241G09G3/2011G09G3/2022G09G3/2077G09G3/22G09G2300/08G09G2300/0809G09G2300/0814G09G2300/0828G09G2300/0852G09G2310/0251G09G2320/0223G09G2320/0233
    • An active matrix display panel comprises a substrate, an array of pixel circuits being arranged in a matrix of at least one column and a plurality of rows on the substrate, each pixel circuit comprising a light-emitting element, capable of emitting light of an intensity determined by the value of a current passed through it, and at least one column line, each column line arranged to conduct a reference current, provided by a current driving circuit, when connected to the panel. The pixel circuits in a column are divided into a plurality of groups of at least one pixel circuit. The active matrix display panel comprises at least one current mirror circuit associated with a first group, comprising a first current mirror, arranged to mirror a reference current flowing through a column line to a first current mirror output. Each pixel circuit in the first group comprises at least a first current-memory stage, having an output terminal connected to the light-emitting element, wherein the first current-memory stage is capable of drawing a current determined at least partly by the current mirrored to the first current mirror output through the output terminal. Each current mirror circuit comprises at least one additional current mirror, arranged to mirror a reference current flowing through an associated column line to an additional current mirror output, wherein each additional current mirror output is connected in parallel to the first current mirror output.
    • 有源矩阵显示面板包括基板,像素电路阵列以基板上的至少一列和多行的矩阵排列,每个像素电路包括发光元件,其能够发射强度的光 由通过它的电流的值确定,以及至少一列列线,当连接到面板时,每列列线被布置成传导由电流驱动电路提供的参考电流。 列中的像素电路被分成多个至少一个像素电路组。 有源矩阵显示面板包括与第一组相关联的至少一个电流镜电路,包括第一电流镜,被布置成将流经列线的参考电流镜像到第一电流镜输出。 第一组中的每个像素电路包括至少第一电流存储器级,其具有连接到发光元件的输出端子,其中第一电流存储器级能够绘制至少部分由电流镜像确定的电流 通过输出端子到第一个电流镜像输出。 每个电流镜电路包括至少一个额外的电流镜,其布置成将流过相关联的列线的参考电流镜像到附加电流镜输出,其中每个附加电流镜输出与第一电流镜输出并联连接。
    • 9. 发明申请
    • ILLUMINATION SYSTEM COMPRISING A PLURALITY OF LEDS
    • 包含多个LED的照明系统
    • WO2012069961A1
    • 2012-05-31
    • PCT/IB2011/055099
    • 2011-11-15
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.SEMPEL, Adrianus
    • SEMPEL, Adrianus
    • H05B33/08
    • H05B33/0848H05B33/0827H05B33/0863
    • An illumination system (100)comprises: an LED system (120) comprising two or more LED groups (21, 22, 23, 24; 451, 452) and current distribution means (140), wherein each LED group includes one or more individual LEDs, the LED system (120) having two input terminals (121, 122); a single controllable driver (130) for providing working power to the LED system (120), the driver having two output terminals (131, 132) coupled to the two input terminals (121, 122) of the LED system (120), respectively; a control device (2) for controlling the driver (130); wherein the control device (2) is designed for controlling the driver output voltage (Vi); and wherein the current distribution means are responsive to the input voltage (Vi) at the input terminals of the LED system for drawing current from the driver and distributing the current among the different LED groups in dependence on the input voltage level.
    • 照明系统(100)包括:包括两个或更多个LED组(21,22,23,24; 451,452)和电流分配装置(140)的LED系统(120),其中每个LED组包括一个或多个个体 LED,具有两个输入端(121,122)的LED系统(120); 用于向LED系统(120)提供工作功率的单个可控驱动器(130),所述驱动器具有分别耦合到所述LED系统(120)的两个输入端子(121,122)的两个输出端子(131,132) ; 控制装置(2),用于控制驾驶员(130); 其中所述控制装置(2)被设计成用于控制所述驱动器输出电压(Vi); 并且其中所述电流分布装置响应于所述LED系统的输入端处的输入电压(Vi),用于从所述驱动器引出电流并根据所述输入电压电平分配所述不同LED组中的电​​流。