Patent ID: 7009451

Claim:
An image display apparatus, comprising: a display screen device with a drive input; and a driver circuit comprising a push-pull stage with an output coupled to the drive input, the driver circuit comprising: an n-type pull transistor with a main current channel coupled to the drive input; an n-type control transistor with a main current channel terminal coupled to a control electrode of the pull transistor via a node; a voltage source for applying a predetermined voltage over a series connection of the control electrode-main current channel terminals of the control transistor and the pull transistor; a p-type current mirror with an output transistor that serves as push transistor for the push-pull stage and an input fed by the main current channel of the control transistor; and an input transistor with a main current channel coupled to said node, the input transistor having a control electrode coupled to an input of the driver circuit, the input transistor being arranged to draw substantially all of a variable part of the current from the control transistor, an external input of the apparatus having a coupling to the control electrode of the input transistor that does not include the main current channel through the control transistor.