Sharp Kabushiki Kaisha Corporation

Kazuki Ohfuku

Masakazu Takeuchi

Akihisa Iwamoto

Masashi Miwa

Akihiro Hada

In a display device including a non-rectangular display unit in which a plurality of gate bus lines and a plurality of source bus lines are arranged as signal lines, at least one of the gate bus lines and the source bus lines are driven by a first-type drive circuit unit as a circuit portion configured to drive such signal lines from only one end side, and a second-type drive circuit unit as a pair of circuit portions configured to drive the signal lines from both of one end side and the other end side.

Driving circuit for non-rectangular display unit

A liquid crystal display device is provided with: a liquid crystal display panel (), a light guide plate disposed on the rear surface side of the liquid crystal display panel; light sources disposed on the side surfaces of the light guide plate and applying light to the liquid crystal display panel through the light guide plate; a reflective sheet () disposed on the rear surface side of the light guide plate; and a reflection sheet moving unit () that movably holds the reflection sheet.

Liquid crystal display device having movable reflecting and transmitting screen

A backlight unit is provided that, for a case where on a mounting board on which a plurality of point light sources are mounted, an electronic component other than those point light sources is mounted, can reduce the occurrence of uneven luminance, with no increase in the size of the backlight unit. This backlight unit () is provided with a PWB () having at least an LED mounting region () extending along a side surface () of a light guide plate (). The LED mounting region () of the PWB () is, at an end portion thereof on one side, provided with an FPC mounting region () and is, at an end portion thereof on the other side opposite to the one side, provided with a capacitor mounting region () extending along a side surface () perpendicular to the side surface () of the light guide plate ().

Backlight unit

A display apparatus according to the present invention is provided with a matrix-type liquid crystal panel and a switching liquid crystal panel, the matrix-type liquid crystal panel and the switching liquid crystal panel assembled together. In the display apparatus, a polarity of a voltage applied on an electrode pair of the switching liquid crystal panel is inverted once in substantially one vertical period or in one or more vertical period. With this arrangement, it is possible to reduce a number of bright line or dark line. This attains display quality improvement and power consumption reduction.

Growing community of inventors

Osaka, Japan

Kazuki Ohfuku