US Patent 10140940 Display device

According to one embodiment, a display device has a display area and pixels forming a matrix pattern. Each of the pixels has a display element and a capacitive element series circuit, and a capacitive element series circuit includes a first capacitive element and a second capacitive element. Some switches in a boost control circuit are controlled by a gate signal during one pulse period of an input source signal at least two times. The switches include, a switch being opening and/or closing in a first half of the pulse period, and a switch being closing and/or opening in a second half of the pulse period.