Patent ID: 8358258
Filing Date: 2013-01-22
Classification: G09G,H01L

Abstract:
1. An active matrix display comprising: an array of column conducting lines; an array of row conducting lines crossing the array of column conducting lines; a matrix of pixel elements, wherein a pixel element is electrically connected to at least one column conducting line and at least one row conducting line, and wherein the pixel element having multiple operation modes comprises: a first capacitive element; a first transistor having a semiconductor channel, a first terminal of the semiconductor channel of the first transistor being electrically connected to the first capacitive element via a first terminal of the first capacitive element; a driving transistor having a gate electrically connected to the semiconductor channel of the first transistor via the second terminal of the semiconductor channel of the first transistor, and wherein the semiconductor channel of the first transistor is electrically connected within the pixel element between the first capacitive element and the gate of the driving transistor; a light-emitting element operationally coupled to the driving transistor such that a current in the light-emitting element depends upon a voltage on the gate of the driving transistor; and resistive means for making a bias voltage of the first transistor at time t linearly depend upon an exponential decaying function exp(−t/τ) with a predetermined time constant τ that is a function of a constant resistive value of a linear resistor, wherein the bias voltage of the first transistor is a voltage difference between the gate of the first transistor and the first terminal of the semiconductor channel of the first transistor.