Patent ID: 7859495
Filing Date: 2010-12-28
Classification: G09G

Abstract:
1. An image display apparatus, comprising: a pixel array section; and a peripheral circuit section configured to drive said pixel array section; said pixel array section including a plurality of scanning lines extending along rows, a plurality of signal lines extending along columns, and a plurality of pixels disposed in a matrix at locations at which said scanning lines and said signal lines intersect with each other; said peripheral circuit section having a scanner configured to supply sequential scanning signals in a predetermined transfer period to said scanning lines in order to perform line sequential scanning over one field and a driver configured to supply an image signal to said signal lines in accordance with the line sequential scanning; each of said pixels containing a sampling transistor, a drive transistor, a switching transistor, and a light emitting element; said sampling transistor being rendered conducting in response to a first control signal supplied from an associated first one of said scanning lines to sample an image signal supplied from an associated one of said signal lines; said drive transistor supplying output current in response to the image signal sampled by said sampling transistor to said light emitting element; said light emitting element emitting light with luminance in accordance with the image signal based on the output current supplied from said drive transistor; said switching transistor being disposed in a current path along which the output current flows in such a manner as to exhibit an on state in response to a time width of a second one of the control signals supplied thereto from said second scanning line to supply the output current to said light emitting element so as to cause said light emitting element to emit light within a light emitting period in accordance with the time width; said scanner consists of a first scanner configured to supply the first control signals to the first scanning lines and a second scanner configured to supply the second control signals to the second scanning lines; said first scanner operating in response to a clock signal which defines a transfer period which includes ordinary first transfer periods and second transfer periods which are longer than and mixed in the first transfer periods to supply the first control signals sequentially in the first transfer periods and the second transfer periods which are mixed in the first transfer periods to the first scanning lines; said second scanner operating in response to a clock signal synchronized with the clock signal for said first scanner to sequentially supply the second control signals to the second scanning lines, whereupon the time width of the second control signals which defines the light emitting period varies for each row due to the mixture of the first transfer periods and the second transfer periods; said second scanner turning off the output of the second control signals in accordance with the second transfer periods thereby to adjust the light emitting period against variation caused by the mixture of the second transfer periods.