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    • 8. 发明授权
    • Pixel modulation apparatus and method thereof
    • 像素调制装置及其方法
    • US06963615B2
    • 2005-11-08
    • US10117204
    • 2002-04-08
    • Somei KawasakiMasami IsekiHiroyuki MaruFujio Kawano
    • Somei KawasakiMasami IsekiHiroyuki MaruFujio Kawano
    • B41J2/44H04N1/113H04N1/23H04N1/405H04N7/12
    • H04N1/4056
    • A pixel modulation apparatus for converting pixel data D composed of N1 bits to a pixel data signal composed of one bit. The pixel data D is input into the apparatus at a pixel period T0. The apparatus includes a first data conversion unit which converts the pixel data D to pixel data D1 expanded to N2 bits (N2>N1) at the period T0, a second data conversion unit which converts the pixel data D1 to pixel data D2 composed of N3/m bits at a period T0/m, a third data conversion unit which inputs n data from among the pixel data D2 and pixel data Dd2 constituting the pixel data D2 before having the period T0/m to execute logical sum operations a predetermined number (equal to or less than n) of times to convert the n data to pixel data D3 composed of N3 bits, including additional data corresponding to the predetermined number, and a fourth data conversion unit which converts the pixel data D3 to the pixel data signal composed of one bit at the period T0/m.
    • 一种像素调制装置,用于将由N 1位组成的像素数据D转换为由一位构成的像素数据信号。 像素数据D在像素周期T 0被输入到装置中。 该装置包括第一数据转换单元,其将像素数据D转换为在周期T 0处扩展为N 2位(N 2> N 1)的像素数据D 1,第二数据转换单元,将像素数据D 1转换为 在周期T 0 / m处由N 3 / m位组成的像素数据D 2,第三数据转换单元,其在具有周期之前从像素数据D 2和构成像素数据D 2的像素数据Dd 2输入n个数据 T 0 / m以执行逻辑和运算,将预定数量(等于或小于n)次以将n个数据转换为由包括与预定数量相对应的附加数据的N 3位组成的像素数据D 3,以及第四 数据转换单元,其将像素数据D 3转换为在周期T 0 / m处由一位组成的像素数据信号。
    • 10. 发明申请
    • Programming circuit, light emitting device using the same, and display device
    • 编程电路,使用相同的发光装置和显示装置
    • US20060120357A1
    • 2006-06-08
    • US11290578
    • 2005-12-01
    • Somei KawasakiMasami IsekiFujio KawanoTakanori Yamashita
    • Somei KawasakiMasami IsekiFujio KawanoTakanori Yamashita
    • H04L12/66
    • G09G3/3283G09G3/325G09G2300/0842G09G2300/0861G09G2320/0233
    • Even if characteristics of transistors differ every circuit, in order to suppress an influence by the different characteristics and stabilize the programming operation to a control electrode of a drive transistor even if a data signal is small, there is provided a programming apparatus for programming signals which are supplied to a circuit array (61, 62) having a plurality of circuits each having transistors (M11, M12), first switching elements (M21, M22) connected to control electrodes of the transistors, and second switching elements (M31, M32) each connected to one main electrode of each of the transistors. The programming apparatus has: a current generating circuit (M3, M4) which is connected in common to each of the second switching elements of the circuit array and generates a current corresponding to a current flowing in the transistor of the selected circuit; and an operational amplifier (OPAMP1) which is connected in common to each of the first switching elements of the circuit array and supplies the program signal to the control electrode of the transistor of the selected circuit. A data signal and a signal corresponding to the current generated by the current generating circuit are inputted to the operational amplifier.
    • 即使每个电路的晶体管的特性不同,为了抑制不同特性的影响,即使数据信号较小,也能将编程操作稳定在驱动晶体管的控制电极上,因此提供了一种用于对信号进行编程的编程装置 被提供给具有多个电路的电路阵列(61,62),每个电路各自具有晶体管(M 11,M 12),连接到晶体管的控制电极的第一开关元件(M 21,M 22)和第二开关元件 M 31,M 32),每个连接到每个晶体管的一个主电极。 编程装置具有:电流产生电路(M 3,M 4),其共同连接到电路阵列的每个第二开关元件,并产生与流过所选电路的晶体管的电流相对应的电流; 以及与电路阵列的每个第一开关元件共同连接的运算放大器(运算放大器1),并将编程信号提供给所选电路的晶体管的控制电极。 将数据信号和与电流产生电路产生的电流对应的信号输入到运算放大器。