Sharp Kabushiki Kaisha Corporation

Takuya Hachida

Yuhichiroh Murakami

Yasushi Sasaki

Seijirou Gyouten

Shige Furuta

Makoto Yokoyama

Shuji Nishi

Etsuo Yamamoto

A transistor circuit includes at least one transistor, wherein at least part of a connecting portion that connects the transistor (Tr) and a power supply line () is formed from a material of which a channel of the transistor (Tr) is made. This configuration reduces a circuit area of the transistor circuit.

Transistor circuit, flip-flop, signal processing circuit, driver circuit, and display device

A stage of the shift register has (i) a set-reset type flip-flop which receives an initialization signal and (ii) a signal generating circuit which receives a simultaneous selection signal and which generates an output signal by use of an output of the flip-flop. In at least one example embodiment, the output of the flip-flop becomes inactive regardless of whether a setting signal and a resetting signal are active or inactive, as long as the initialization signal is active. The initialization signal becomes active before the end of the simultaneous selection, and then becomes inactive after the end of the simultaneous selection. This makes it possible to stabilize operation of the shift register after the end of simultaneous selection of a plurality of signal lines carried out by the display driving circuit at a predetermined timing.

Display driving circuit, display panel and display device

A memory-type liquid crystal display device includes a liquid crystal panel including memory circuits, and conducts a refresh operation more than once during a display holding period after rewriting of a screen. The memory-type liquid crystal display device increases at least one of (i) a frequency at which the screen is rewritten and (ii) a frequency at which the refresh operation is conducted during the display holding period as an intensity of light received by the liquid crystal panel increases. This allows the memory-type liquid crystal display device to reduce power consumption while keeping its display quality.

Liquid crystal display device and drive method for liquid crystal display device

Growing community of inventors

Osaka, Japan

Takuya Hachida