Sharp Kabushiki Kaisha Corporation

Mitsuru Chida

Emi Yamamoto

Koji Murata

Takashi Katayama

Masakazu Kamura

Takuya Ootani

A display device includes a display part; a driving part; and a display control part, the display control part being configured to provide a transition period between first and second driving periods in switching from the first driving period to the second driving period, the first driving period allowing the display part to be driven at a first frame frequency, the second driving period allowing the display part to be driven at a second frame frequency, the transition period including a period where the display part is driven at at least one frame frequency with a value between the first and second frame frequencies, the transition period including positive and negative periods that last for different total durations, the positive period allowing the display part to be driven at a positive voltage, the negative period allowing the display part to be driven at a negative voltage.

Display device

The present invention makes it possible to reduce an afterimage phenomenon while preventing an increase in driving voltage. A liquid crystal display device () includes: a liquid crystal layer () and a pair of substrates which face each other across the liquid crystal layer (); and an upper electrode (), a lower electrode (), and a first insulating layer () which are provided in a stack on one substrate () of the pair of substrates so that the upper electrode () and the lower electrode () overlap each other via the first insulating layer (), the upper layer electrode () having an end surface which constitutes an opening of the upper electrode (), the end surface being forward tapered and forming, with the one substrate (), an average angle of inclination of not more than 30 degrees.

Liquid crystal display device

A wavelength conversion substrate according to one aspect of the present invention includes: a first substrate having an optical transparency; and a light modulation unit provided on one surface of the first substrate and configured to modulate a spectrum of incident light in accordance with a polarization state of the incident light. The light modulation unit includes: a plurality of metallic structures periodically provided at intervals from one another on one surface of the first substrate and configured to exhibit plasmon resonance due to incident light; and a plurality of wavelength conversion units provided so that at least some wavelength conversion units are adjacent to the plurality of metallic structures and comprising a wavelength converting material configured to emit light in a wavelength band different from a wavelength band of the incident light.

Growing community of inventors

Sakai, Japan

Mitsuru Chida