Seiko Epson Corporation

Yasuhiro Honda

Shun Imai

Takashi Ozawa

Yasuhiro Nakamura

Kazutoshi Okada

A projector includes an image projection unit for displaying an image by a liquid crystal panel, and a controller that powers off the projector after displaying a black image in the image projection unit for a predetermined time (a set refresh time) in a refresh mode for improving burn-in of the liquid crystal panel, in which the controller stops the refresh mode when an interrupt event is generated before the set refresh time elapses in the refresh mode and powers off the projector after executing an interrupt process according to the interrupt event.

Image display apparatus and control method thereof

A projector includes: an image I/F unit that communicates with a document camera; a projection unit that displays an image based on photographic image data received from the document camera via the image I/F unit on a screen; a position detection unit that detects a position of an indicator with respect to the screen; and an instruction information transmission unit that transmits a control command for causing the document camera to perform a process based on a function related to an icon via the image I/F unit in a case in which it is detected that a region corresponding to the icon of the screen is operated with the indicator based on a detection result of the position detection unit.

Display apparatus, method of controlling display apparatus, document camera, and method of controlling document camera

A display apparatus, which improves operability in a case where operations are performed by plural indicators, and a display apparatus control method. A detection unit that detects an operation performed by a first indicator on a screen and an operation performed by a second indicator on the screen, and an invalid determination unit that receives an indication which causes the operations to be invalid are included. In a case where the indication is received after the detection unit detects the operation performed by the second indicator, and, thereafter, detects the operation performed by the first indicator, the invalid determination unit causes the operation performed by the second indicator to be invalid.

Display apparatus and display apparatus control method

A light curtain installation method, which is a method for adjusting or checking an installation state of a light curtain for detecting an operation with respect to an image plane of a display apparatus, includes: determining whether or not it is possible to detect an object that comes into contact with a target region on the image plane which corresponds to a reference pixel which is a pixel at a predetermined position; and setting a drive state of the reference pixel such that the drive state of the reference pixel is different depending on a result of the determining.

Light curtain installation method and interactive display apparatus

A position detection device capable of preventing an operation that is not intended by an operator from being detected as an input is provided. The position detection device includes: a detecting section that detects an indicator that performs an operation with respect to a screen, and an indicator different from the indicator; an imaging section that forms a captured image obtained by imaging a range including the screen; and a control section that detects a motion of the indicator with respect to the screen and a position of the indicator with respect to the screen based on data on the captured image of the imaging section to determine whether or not to detect an operation based on the indicator as an input.

Position detection device, projector, and position detection method

A position detection device capable of preventing an operation that is not intended by an operator from being detected as an input is provided. The position detection device includes: a detecting section that detects an indicator that performs an operation with respect to a screen, and a target different from the indicator; an imaging section that images a range including the screen to form a captured image; and a control section that detects a motion of the indicator based on data on the captured image of the imaging section to determine whether or not to detect an operation based on the indicator as an input.

A projector system includes: a position detecting unit that detects a pointed position of a pointer on a projection surface; a drawing unit that performs drawing on the projection surface according to the pointed position detected by the position detecting unit; a height detecting unit that detects a height of a user of a projector; and a display changing unit that changes, according to the user's height detected by the height detecting unit, at least one of a shape of the image projected onto the projection surface and a display position of the image on the projection surface.

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Shiojiri, Japan

Yasuhiro Honda