Sharp Kabushiki Kaisha Corporation

Toshihisa Nakano

Akihiko Inoue

Tomoyuki Ishihara

Yuji Sato

Saburo Miyamoto

Hiroshi Hamada

Takeshi Yamaguchi

Tomohiko Nishimura

Saburoh Miyamoto

A display device with a touch sensor according to the present invention includes an active matrix substrate and a transparent counter electrode. On a first surface of the active matrix substrate, multiple pixel electrodes are arranged in matrix. The transparent counter electrode is opposed to the first surface of the active matrix substrate. The display device further includes a first circuit, a second circuit and a switching circuit. The first circuit supplies a voltage or a current to the transparent counter electrode for display purposes. The second circuit detects currents flowing from a number of points on the transparent counter electrode. And the switching circuit selectively connects electrically one of the first and second circuits to the transparent counter electrode.

Touch sensor, display device with touch sensor, and method of generating location data

A touch-sensored display deviceaccording to the present invention includes: a counter substratedisposed on a viewer side of an active matrix substratevia a display medium layer, the counter substratehaving a counter electrodewhich opposes pixel electrodes; a display panel driving circuitfor supplying to the counter electrodea common voltage which undergoes periodic inversion in polarity; a transparent conductive filmfor position detection placed so as to oppose the counter electrodevia the counter substrate; a strobe signal generation circuitfor generating a strobe signal which is in synchronization with a polarity inversion period of the common voltage, and a noise-cut current signal generation circuitfor generating a noise-cut current signal which is obtained by eliminating based on the strobe signal a predetermined portion from a current flowing from a terminal connected to the transparent conductive filmfor position detection.

Display device with touch sensor, and drive method for the device

A display device with a touch sensor according to the present invention includes an active matrix substrateA and a transparent counter electrode. On a first surface of the active matrix substrate, multiple pixel electrodes are arranged in matrix. The transparent counter electrode is opposed to the first surface of the active matrix substrate. The display device further includes a first circuit, a second circuit and a switching circuit. The first circuit supplies a voltage or a current to the transparent counter electrode for display purposes. The second circuit detects currents flowing from a number of points on the transparent counter electrode. And the switching circuit selectively connects electrically one of the first and second circuits to the transparent counter electrode.

Touch sensor, display with touch sensor, and method for generating position data

An image display system includes at least one display device connected to a host device. An image is displayed on the at least one display device in accordance with an image signal which is output from the host device. The at least one display device monitors a state of coupling with the host device.

Image display system and display device

A server system of the present invention includes a server apparatus and one or more terminal apparatuses electrically connected to the server apparatus through a transmission line, in which each of the one or more terminal apparatuses include one or more input devices, the server apparatus implements an operating system and an application program, the server apparatus includes input information recognition means for recognizing an input information signal which is output from each of the one or more input devices and input to the server apparatus, and the server apparatus executes the operating system and the application program based on the input information signal.

Server transferring only image display data for a part of a display image which is to be updated for associated terminals

A synchronization signal generation circuit includes: a synchronization signal generation section for generating a first vertical synchronization signal and a first horizontal synchronization signal based on an externally-supplied second vertical synchronization signal; and a detection section for detecting the second vertical synchronization signal, wherein when the second vertical synchronization signal is detected by the detection section for the first time, the first vertical synchronization signal is not output by the synchronization signal generation section, and when the second vertical synchronization signal is detected by the detection section for the next time at a predetermined timing, the first vertical synchronization signal is output by the synchronization signal generation section.

Synchronization signal generation circuit, image display apparatus using synchronization signal generation circuit, and method for generating synchronization signal

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Tenri, Japan

Toshihisa Nakano