公开(公告)号：KR1020070121373A

公开(公告)日：2007-12-27

申请号：KR1020060056358

申请日：2006-06-22

Applicant: 한양대학교 산학협력단

Inventor： 권오경

IPC: G09G3/20 ,  H03M1/66

CPC classification number: G09G3/2092 ,  G09G3/3275 ,  G09G3/3688 ,  G09G2310/0294 ,  G11C27/02 ,  H03M1/66 ,  H03M2201/71

Abstract: A data driver and a driving method of the same are provided to minimize a mount area of a digital-analog converter circuit irrespective of an increase of bits of digital data signals. A data driver includes a plurality of digital-analog converters to convert digital data signals to analog data signals. Each of the digital-analog converters includes a first, second, and third sampling/hold circuits(110,120,130) connected through a common line to each other. Each of the first, second, and third sampling/hold circuits includes at least one or more unit sampling/hold circuit. The unit sampling/hold circuit includes a capacitor, a transistor, and a switch. In the unit sampling/hold circuit, a first terminal of the transistor is connected to the common line. The capacitor is formed on a conductive line disconnected from the first terminal of the transistor. A node is formed between the capacitor and the first terminal of the transistor. The node is connected to a gate terminal of the transistor. The switch is formed between the first terminal of the transistor and the capacitor in order to switch selectively a flow of current between the first terminal of the transistor and the capacitor.

Abstract translation: 提供了一种数据驱动器及其驱动方法，以最小化数模转换器电路的安装面积，而与数字数据信号的位数量增加无关。 数据驱动器包括将数字数据信号转换为模拟数据信号的多个数模转换器。 每个数模转换器包括通过公共线相互连接的第一，第二和第三取样/保持电路（110,120,130）。 第一，第二和第三采样/保持电路中的每一个包括至少一个或多个单元采样/保持电路。 单元采样/保持电路包括电容器，晶体管和开关。 在单元采样/保持电路中，晶体管的第一端子连接到公共线。 电容器形成在与晶体管的第一端子断开的导线上。 在电容器和晶体管的第一端之间形成节点。 节点连接到晶体管的栅极端子。 开关形成在晶体管的第一端子和电容器之间，以便选择性地在晶体管的第一端子与电容器之间切换电流。