Incontinentia Pigmenti is a neurocutaneous genodermatosis that segregates as an X-linked dominant disorder with a high probability of prenatal male lethality. The level shifter and the pull-up circuit receive power from the same supply voltage. The second pixel stores the second data voltage as a second stored data voltage in response to the second gate-on voltage and discharges the second stored data voltage in response to the first gate-on voltage. The sender receives a feedback from the receiver, wherein the feedback is generated by the receiver based on searching an image repository using information from the first query. The driving device can include a control module for controlling output voltage of the driving device; a light modulation module for adjusting overall current of the backlight; and a current regulating module for obtaining signals for adjusting individual current of each LED unit and adjusting the individual current of each LED unit according to the signals.