Patent ID: 6903712
Filing Date: 2005-06-07
Classification: G09G

Abstract:
1. A display device comprising: a plurality of cathode wires, a plurality of anode wires arranged in a matrix shape together with said plurality of cathode wires, electroluminescence (EL) elements disposed between said plurality of cathode wires and anode wires, and in which an electrical charge is stored, a current source coupled to said anode wires, a voltage source coupled to said cathode wires, an anode control circuit connected between said anode wires and said current source, for discharging said stored charge from said EL elements, and for controlling respective current flow into said anode wires, a cathode control circuit connected between said cathode wires and said voltage source, for discharging said stored charge from said EL elements, and for controlling respective voltages at said cathode wires, a display controller for controlling said anode control circuit and said cathode control circuit, said display controller including a setting unit for setting a discharge time for discharging said stored charge of said EL elements before light emission of said EL elements to a time Rt, wherein a discharge time Tx for discharging said stored charge before light emission of said EL elements is determined so as to obtain a luminance Lp of said EL elements determined by: where Le is a luminance of light emitted by said EL elements storing substantially no electrical charge, and said discharge time Rt satisfies the relation of: