Seiko Epson Corporation

Hiroyuki Hosaka

Hidehito Iisaka

Taku Kitagawa

Kazuhisa Mizusako

Toru Aoki

Takashi Toyooka

Nariya Takahashi

Suguru Uchiyama

Yusuke Komuro

Takashi Nishimori

Atsushi Kato

Junichi Wakabayashi

Tetsuro Yamazaki

Akihide Haruyama

Tomo Ikebe

Shigemi Sato

Shuichi Nakanishi

Seiji Osawa

Daigo Hokazono

Kosuke Fukui

A projection-type display apparatus includes a liquid crystal panel including a panel pixel, an optical path shifting element that shifts a projected pixel projected from the panel pixel, and a display control circuit that controls the liquid crystal panel and the optical path shifting element. The display control circuit supplies, to the liquid crystal panel, the same data signal and controls the projected pixel to be at a same position in each of a unit period f-and a unit period f-, and controls the optical path shifting element to cause a shift direction from the projected pixel before the shift toward the projected pixel after the shift from a unit period f-to a unit period f-to be opposite to the shift direction from the projected pixel before the shift toward the projected pixel after the shift from a unit period f-to a unit period f-

Projection-type display apparatus

A projection-type display apparatus includes a liquid crystal panel including a panel pixel, an optical path shifting element that shifts a projected pixel projected from the panel pixel, and a display control circuit that controls the liquid crystal panel and the optical path shifting element. The display control circuit supplies, to the liquid crystal panel, the same data signal and controls the projected pixel to be at a same position in a unit period f-and a unit period f-period, and controls the optical path shifting element to cause the position of the projected pixel in each of a unit period f-to a unit period f-, to be different from the position of the projected pixel in a respective one of a unit period f-to a unit period f-

A display device includes liquid crystal panels, and displays an image, based on emission light from each of the liquid crystal panels. A display control circuit of the display device supplies image data of respective colors R, G, and B to the corresponding liquid crystal panels. A panel pixel having the lowest transmittance of three panel pixels corresponding to white-side pixels at domain boundaries is regarded as a reference panel pixel. The display control circuit reduces a gray scale level of pixel data supplied to two panel pixels other than the reference panel pixel of the three panel pixels. With this, coloring of the white-side pixels can be suppressed.

Control method for display device and display device

A projector including an electro-optical panel in which a plurality of pixels are arrayed, an optical path shifting element configured to change an optical path of light emitted from the plurality of pixels, and a control circuit configured to control a state of the optical path shifting element such that light emitted from a predetermined pixel among the plurality of pixels reaches a first position on a display screen in the first unit period, control a state of the optical path shifting element such that light emitted from the predetermined pixel reaches a second position on the display screen in the second unit period, and control a state of the optical path shifting element in a transition period in which a unit period transitions from the first unit period to the second unit period based on a type of image indicated by an input image signal.

Projector and control method for projector

A liquid crystal device includes a liquid crystal panel including a liquid crystal layer as a first liquid crystal layer, a first polarizing element, a second polarizing element, a first phase difference adjusting element arranged between the first polarizing element and the liquid crystal panel and including a liquid crystal layer as a second liquid crystal layer, a second phase difference adjusting element arranged between the liquid crystal panel and the second polarizing element and including a liquid crystal layer as a third liquid crystal layer, and a first phase difference controlling element driving unit and a second phase difference controlling element driving unit as control units configured to control a value of a voltage applied to the first phase difference adjusting element and the second phase difference adjusting element, based on image data input to the liquid crystal panel.

Liquid crystal device, display device, optical modulation module, and control method of liquid crystal device

In a projection-type display device including a liquid crystal panel where panel pixels are arranged in a first direction and a second direction, the polarity of the image signal supplied to each of all panel pixels is set to the same polarity in the same unit period among a plurality of unit periods, and the polarity of the image signal is reversed upon transition from the current frame period to the next frame period. The polarity of the image signal is reversed when a projection pixel is shifted by a light path shifting element unit in the first direction or in the second direction upon transition of the unit period, and the polarity of the image signal is not reversed when it is shifted along a third direction or a fourth direction that intersects the first direction and the second direction.

Projection-type display device, and control method for projection-type display device

A liquid crystal projector includes a liquid crystal panel having a pixel circuit that modulates light based on video data corresponding to each of pixels, and a shift device configured to shift the modulated light by the pixel circuit so that a position of a projected pixel on a screen by the modulated light is shifted for each of the pixels, wherein the pixel circuit modulates n pixels of a first group, n being an integer of 2 or more, from among pixels of an image specified by video data in first frame period, and modulates n pixels of a second group in second frame period next to the first frame period, and the n pixels of the first group are different from the n pixels of the second group.

Liquid crystal projector

A liquid crystal projector includes a liquid crystal panel, a shift device and a display control circuit. The liquid crystal panel includes a plurality of panel pixels. The shift device shifts projection positions of the plurality of panel pixels. The display control circuit controls the liquid crystal panel to cause one of the panel pixels to represent k (k is an integer equal to or more than 3) display pixels that are in a non-adjacent relationship in k unit periods in a frame period, and the display control circuit controls the shift device to vary the projection position for each of the k unit periods.

Liquid crystal projector having non-adjacent display pixels

A projector is provided that includes a light source configured to radiate light, an electro-optical panel including a pixel circuit configured to receive light from the light source and emit the light, and an optical axis shifting element configured to shift an optical axis of the light emitted from the pixel circuit, with the projector being configured to display a pixel on a projection surface, based on the light emitted from the pixel circuit via the optical axis shifting element. When shifting a position of the pixel on the projection surface from a first position to a second position in a first direction, the optical axis shifting element shifts an optical axis of the light emitted from the pixel circuit using a path different from a shortest path from the first position to the second position.

Projector and method for controlling projector

An image processing device that uses pixels displayed in a liquid crystal panel to display, across a plurality of fields, pixels constituting an image specified with image data includes, a temporary determining unit configured to, based on a gradation level specified for one pixel of a liquid crystal panel and a gradation level specified for another pixel adjacent to the one pixel in one field, make temporary determination on whether to correct the gradation level of at least one of the one pixel or the other pixel, and a cancellation unit configured to cancel the temporary determination when the gradation level specified for each of the one pixel and the gradation level specified for the other pixel are identical to a gradation level in a field that precedes, by a plurality of the fields, the one field.

Image processing device and liquid crystal projector

A projector includes a liquid crystal panel including a predetermined pixel, a light path shifting element changing a light path of light emitted via the predetermined pixel so that a first region in a display surface in a first unit period and a second region in the display surface in a second unit period partially overlap, and a control unit displaying an image corresponding to a first pixel information on the predetermined pixel in one subfield period within the first unit period, displaying an image corresponding to a second pixel information on the predetermined pixel in another subfield period within the first unit period, displaying an image corresponding to the second pixel information on the predetermined pixel in one subfield period within the second unit period, and displaying an image corresponding to a third pixel information on the predetermined pixel in another subfield period of the second unit period.

Electro-optical device including a light path shifting element and method for controlling the same

A liquid crystal display to suppress a reverse tilt domain that includes pixel electrodes, a first light-shielding film arranged in a first direction along a first side of the pixel electrodes; a second light-shielding film arranged in a second direction along a second side of the pixel electrodes, a correction unit corrects a first input image signal so that a first difference between a first voltage applied to the first pixel electrode and a second voltage applied to a second pixel electrode, and a second difference between the first voltage and a third voltage to be applied to a third pixel electrode are reduced. A width of the first light-shielding film is narrower than a width of the second light-shielding film. The correction unit corrects the first input image signal so that a decreased amount of the first difference is greater than a decreased amount of the second difference.

Liquid crystal display and electronic equipment

An electrooptic device includes a plurality of first pixels, a plurality of second pixels, a first supplying section that supplies a first data signal to the first pixels and drives the first pixels, a second supplying section that supplies a second data signal to the second pixels and drives the second pixels, and a controller that supplies a third data signal to the first supplying section and supplies a fourth data signal to the second supplying section. The first supplying section generates the first data signal based on the third data signal. The second supplying section generates the second data signal based on the fourth data signal. The controller individually corrects a fifth data signal serving as a source of the third data signal and a sixth data signal serving as a source of the fourth data signal and generates the third data signal and the fourth data signal.

Electrooptic device, electronic device, and driving method

A video processing circuit detects a risk boundary, which a portion of the boundary between a dark pixel and a bright pixel in an image represented by a video signal Vid-in, and is determined by a tilt azimuth of liquid crystal molecules, from the boundary, and corrects a video signal corresponding to at least one of the dark pixel and the bright pixel which is contiguous to the detected risk boundary in at least one field of a plurality of fields constituting one frame such that a period in which the risk boundary is present in one frame period is shortened.

Video processing method, video processing circuit, liquid crystal display, and electronic apparatus

A first supply circuit outputs data signals to odd-numbered distribution circuits, and outputs selection signals to all of distribution circuits. A second supply circuit outputs data signals to even-numbered distribution circuits. The odd-numbered distribution circuits distribute the data signals to signal lines using the selection signals. The even-numbered distribution circuits distribute the data signals to signal lines using the selection signals. The first supply circuit outputs the data signals generated based on digital data signals which are basic signals of the data signals and an adjustment value, to the distribution circuits.

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Matsumoto, Japan

Hiroyuki Hosaka