Seiko Epson Corporation

Nobutaka Tanaka

Satoshi Yatabe

Naoki Tomikawa

An electro-optical device includes an element substrate, a liquid crystal, and a counter substrate provided opposite to the element substrate via the liquid crystal, wherein the counter substrate includes a light blocking film disposed outside a display region in plan view, and a heater overlapping with the light blocking film in plan view and provided along the display region.

Electro-optical device and electronic apparatus

An electro-optical device includes an element substrate provided with a plurality of pixel electrodes, a counter substrate provided with a common electrode, a liquid crystal sandwiched between the plurality of pixel electrodes and the common electrode, and a dust-proof glass bonded to at least one substrate of the element substrate or the counter substrate and having a heater disposed along an outer side of a display region in plan view.

A projection-type display device includes a liquid crystal device, a transmittance measuring device configured to measure a transmittance of a liquid crystal panel, and a cooling device. After a result of measurement of the transmittance by the transmittance measuring device changes by 10% relative to a default value, a control unit controls the cooling device to raise temperatures of a liquid crystal layer to be not less than 60&#xb0; C. and not more than a nematic-isotropic phase transition temperature Tni-20&#xb0; C. This makes it possible to efficiently sweep impurities from a display region to the outside of the display region without heating the liquid crystal layer more than necessary. In addition, a liquid crystal volume ratio V1/V2 of a liquid crystal device for blue among a plurality of liquid crystal devices is greater than that of the other liquid crystal panels, where V1 is a volume of liquid crystal at the inner side of a seal material, and V2 is a volume of the liquid crystal layer in the display region.

Method of driving display device, and display device

In a liquid crystal device, on a first substrate, a first electrode to which a potential higher than a common potential is applied and a second electrode to which a potential lower than the common potential is applied are provided at the outside of a pixel area. The first electrode and the second electrode respectively extend along different portions of the outer edge of the pixel area, and are not parallel to each other. At least one of the first electrode and the second electrode is provided on all sides of the pixel area. For example, the first electrodes extend across the entirety or substantially entirety of the first side and the second side, and the second electrodes extend across the entirety or substantially entirety of the third side and the fourth side.

Liquid crystal display device comprising first and second electrodes respectively disposed outside of diagonally opposite first and second corner portions of a pixel area

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Shiojiri, Japan

Nobutaka Tanaka