Patent ID: 8022901
Filing Date: 2011-09-20
Classification: G09G

Abstract:
1. A current control driver of an active matrix method in a device in which elements that receive current supply are laid out in the form of a matrix, the elements being selected in the current control driver by sequential line scanning while output currents being controlled by applied currents from a plurality of data lines and supplied respectively to the selected elements, the current control driver comprising an element circuit for each of the elements, the element circuit comprising: a converting unit for converting a corresponding one of the applied currents into a voltage; a retaining unit for retaining the voltage converted by the converting unit; and a driving unit for converting the voltage retained by the retaining unit into a corresponding one of the output currents and supplying the output current, wherein the converting unit is shared between two or more different element circuits, and two or more of the converting units are connected to the retaining unit of one of the elements during a current supply period for the element by a switch located between the shared converting units.