Display device having short and long light emitting periods. Apparatus for signal control device of the same, and signal control method

摘要

A display device includes a plurality of pixels, a scan driver sequentially applying a scan signal to a plurality of scan lines, a data driver applying a data signal corresponding to the scan signal to a plurality of data lines, and a signal controller calculating an image parameter from an image signal, and generating and transmitting one of a driving control signal for short period light emitting and a driving control signal for long period light emitting to the scan driver and the data driver by using the image parameter. The driving control signal for short period light emitting is a signal controlling a light emitting period in which a plurality of pixels emit light during one frame with a first period. The driving control signal for long period light emitting is a signal controlling the light emitting period with a second period that is longer than the first period.

主权项

1. A display device, comprising:
a plurality of pixels; a scan driver to sequentially apply a scan signal to a plurality of scan lines coupled to the plurality of pixels; a data driver to apply a data signal corresponding to the scan signal to a plurality of data lines coupled to the plurality of pixels; a signal controller to calculate an image parameter from an image signal, and to generate and transmit one of a driving control signal for short period light emitting or a driving control signal for long period light emitting to the scan driver and the data driver by using the image parameter; a sustain power supply to receive a driving control signal for a sustain voltage and determine levels of a sustain voltage according to a driving control signal for the sustain voltage, and to supply the sustain voltage to the plurality of data lines; and a MUX unit connecting the data driver or the sustain power supply to the plurality of data lines according to the driving control signal for short period light emitting or the driving control signal for long period light emitting, wherein: the driving control signal for short period light emitting is a signal controlling a light emitting period in which the plurality of pixels emit light during one frame with a first period, the driving control signal for long period light emitting is a signal controlling the light emitting period with a second period in another frame that is longer than the first period, the second period being longer than the first period by a period Δd, a frame length of the first frame and a frame length of the second frame being equal, and the driving control signal selectively controlling application of a sustain voltage to a gate of a driving transistor during the period Δd, and an ELVSS voltage applied to the pixels is a high level during the period Δd of the first frame and a low level during the period Δd of the second frame.