Patent ID: 7760181
Filing Date: 2010-07-20
Classification: G09G

Abstract:
1. An apparatus for driving an active matrix type display device comprising: a plurality of pixel circuits arranged on a substrate in a matrix a pixel select gate driver which shifts selection for each row of the pixel circuits in order to write signals to capacitances of the plurality of pixel circuits and which applies a pixel select gate signal which sets a signal write period, to a line for the selected row; an illumination on/off driver which shifts selection for each row of the pixel circuits in order to set emission periods for display elements for the plurality of pixel circuits and which applies a illumination on/off gate signal to a line for the selected row; the pixel select gate driver including a pixel select shift register which starts a shift operation at a first start pulse being input, and including a first gate signal output control circuit to which a first output enable signal is applied to output the pixel select gate signal; and the illumination on/off driver including an illumination on/off shift register which starts a shift operation at a second start pulse being input and including a second gate signal output control circuit to which a second output enable signal is applied to output the illumination on/off gate signal, wherein a controller makes following sequence, the first start pulse is started, next the first output enable signal is applied to the first gate signal output control circuit after power-on and stabilization, next the second output enable signal is applied to the second gate signal output control circuit after at least one vertical period of the first one of the first output enable signal, next the second start pulse is applied to the illumination on/off shift register.