Patent ID: 6376994
Filing Date: 2002-04-23
Classification: G09G

Abstract:
A driving apparatus for EL devices, comprising:a driving unit for selectively supplying a light emission driving energy to said EL devices; a temperature sensing unit for sensing an operation temperature; and a temperature compensating unit for changing said light emission driving energy; wherein said temperature compensating unit decreases said light emission driving energy in accordance with an increase in said operation temperature and increases said light emission driving energy in accordance with a decrease in said operation temperature; wherein said driving unit comprises: a plurality of first electrode lines; a plurality of second electrode lines which intersect said first electrode lines; and a light emission control unit for selecting any of said first electrode lines every horizontal scanning period of an image signal that is supplied, selecting any of said second electrode lines in correspondence to a pixel position in said horizontal scanning period, applying a reverse bias voltage to portions between non-selected lines among said first electrode lines and non-selected lines among said second electrode lines, and supplying a driving current to portions between the selected electrode line among said first electrode lines and the selected electrode line among said second electrode lines, wherein said EL devices are arranged in a matrix form in which one of each of electrodes and another electrode are connected to one of said first electrode lines and one of said second electrode lines, respectively, and said temperature compensating unit changes a magnitude of said reverse bias voltage in accordance with said operation temperature.