Nec Corporation

Nlt Technologies, Ltd.

Nec Lcd Technologies, Ltd.

Nec Solution Innovators, Ltd.

Nobuaki Takanashi

Shin-ichi Uehara

Naoyasu Ikeda

Takeshi Honda

Masao Iriguchi

Fujio Okumura

Hiroshi Imai

Masao Imai

Yoshiaki Sato

Hiroyuki Watanabe

Setsuo Kaneko

Satoshi Itoi

Hiroshi Hayama

Noriyoshi Hiroi

Takafumi Kurokawa

Tatsumi Komura

Hiroki Ikeda

Kouji Shigemura

Kenji Akiyoshi

Ryohtaroh Tanimura

A projection control apparatus, method and non-transitory computer-readable storage medium are disclosed. A projection control apparatus may include a memory storing instructions; and one or more processors configured to process the instructions to: cause a projection apparatus to project an image; detect a user operation; control the projection apparatus to change projection parameters upon detecting a first user operation; and control the one or more processors to change the image without changing the projection parameters upon detecting a second user operation.

Projection control apparatus and projection control method

In a three-dimensional image display device for displaying color three-dimensional images, a fly eye lens, a display panel, and a light source are provided in this order from the observer side. A display panel has four pixels arrayed in a (2&#xd7;2) matrix correlated with one lens element of the fly eye lens. In the event that j is a natural number, a pixel magnifying projection width e in a second direction is set in a range of the following expression according to mean interpupillary distance Y of the observers. 

Three-dimensional image display device, portable terminal device, display panel and fly eye lens

An optical scanning device includes movable mirror () reflecting a light beam applied thereto, first beam () joined to an end of movable mirror (), second beam () joined to another end of movable mirror (), first piezoelectric element () generating stress or swinging movable mirror () through first beam (), and second piezoelectric element () generating stress for swinging movable mirror () through first beam (). First and second piezoelectric elements () have respective patterns whose longitudinal directions are aligned with a longitudinal direction of first beam (). First and second piezoelectric elements () are disposed on a support plate () which is joined to the first and second beams () and with an insulative distance being present between first and second piezoelectric elements ().

Optical scanning device and image display device

Optical scanning deviceaccording to the present invention includes: main movable portion; a pair of torsionally deformable main torsion beamsandarranged opposite to each other at both ends of main movable portionand swingably supporting main movable portion; and main driving unitthat drives main movable portionto oscillate. Main movable portionincludes mirror unithaving reflection surfacefor reflecting light, and a pair of permanent magnetsandarranged opposite to each other to sandwich mirror unit, each permanent magnet extending along oscillation axis X-X of main movable portion. Main driving unitincludes yoke unit, andarranged along oscillation axis X-X of main movable portionto surround permanent magnetsand, and coilwound on yoke unit, andand configured to be energized to magnetize yoke unit, and, thereby generating magnetic fields to be applied on permanent magnetsand

Optical scanning device

Provided is a three dimensional display device that includes: three dimensional image display unit () having display surface () for spatially separating and displaying parallax images corresponding to at least two viewpoints; and force sense generation unit () configured to generate a sound wave toward display surface () of three dimensional display unit () and then generate predetermined pressure of the sound wave reflected on display surface () at a position spatially similar to the position of three dimensional image () displayed by three dimensional display unit ().

Three dimensional display device and three dimensional display method

A magnetic force drive device () has the first movable part () and the first driving unit (). The first movable part () has the first movable plate (), and a permanent magnet () that is magnetized in a direction substantially parallel to the first movable plate (), and is supported by the first frame body () and the first pair of beam parts (), so as to be able to oscillate around the Y axis, which is substantially parallel to the first movable plate () and substantially perpendicular to the direction in which the permanent magnet () is magnetized. The first driving unit () has a yoke (), and a coil () that magnetizes the yoke (). The yoke () has the first end part (), and a second end part () that is placed on substantially the opposite side of the first end part () against one magnetic pole of the permanent magnet (). The first end part () and second end part () are magnetized in mutually different polarities, and drive the first movable part () in the same oscillation direction.

Magnetic force drive device, optical scanning device, and image display device

In an image display device where a lenticular lens, a display panel, and a light source are provided in order from a viewer side, when cylindrical lenses of the lenticular lens are arrayed in a horizontal direction, in first-viewpoint pixels and second-viewpoint pixels of the display panel, openings whose sides which intersect with straight lines in the horizontal direction are not parallel to a vertical direction are formed. And, a shape of the openings of a pair of pixels mutually adjacent in the vertical direction is made line-symmetric with respect to edges of the pixels extending in the horizontal direction as an axis.

Image display device with pixel sections arrayed in a matrix

In a display panel, a plurality of pixel sections are arranged in the form of a matrix. Each of the pixel sections includes a pixel for displaying an image for the left eye and a pixel for displaying an image for the right eye. Lenticular lens having repeated convex surfaces is disposed in front of the display panel to deflect the light emitted from each pixel in the horizontal direction from the pixel for displaying the image for the left eye to the pixel for displaying the image for the right eye in each pixel section. Reflection plate reflects the exterior light toward the display panel and has surface projections on the surface. In this case, the focal distance f of the lens is different from the distance H between the surface of the reflection plate and the apex of the lens.

Image display device having a lens and reflection plate surface projections and portable terminal device using the same

A three-dimensional image display device is provided with a display panel. The display panel is provided with a plurality of pixels for the right eyes and pixels for the left eye, and light emitted from the pixels for the right eye is made incident to the right eye of a viewer and light emitted from the pixels for the left eye is made incident to the left eye. When the normal distance between the display panel and the viewer is set to a maximum observation distance, D (mm), then definition X (dpi) of at least one of a vertical direction and a horizontal direction on a display plane of the display panel is set as in the following expression. 

Three-dimensional image display device and three-dimensional image display method

A three-dimensional image/two-dimensional image display device includes a plurality of display pixels, and a lenticular lens for three-dimensional display. Each display pixel is consisted of M&#xd7;N number of sub-pixels to be viewed from N view points. A pitchof sub-pixels arranged in the longitudinal direction of ridge projection of the lenticular lens and a pitchof the sub-pixels arranged in a direction orthogonal to the longitudinal direction of the lenticular lens satisfy the following expression. The M&#xd7;N number of sub-pixels included in each of said display pixels are formed within a square area.:1

Image display device, portable terminal device, display panel and image display method using the same

A three-dimensional image/two-dimensional image display device includes a plurality of display pixels, and a lenticular lens for three-dimensional display. Each display pixel is consisted of M&#xd7;N number of sub-pixels to be viewed from N view points. A pitch a of sub-pixels arranged in the longitudinal direction of ridge projection of the lenticular lens and a pitch b of the sub-pixels arranged in a direction orthogonal to the longitudinal direction of the lenticular lens satisfy the following expression. The M&#xd7;N number of sub-pixels included in each of said display pixels are formed within a square area.:1

A lenticular lens is provided in front of a liquid crystal panel composed of a plurality of pixels. In this case, the lenticular lens is arranged so that one cylindrical lens corresponds to two pixels adjacent to each other. Then, light rays outgoing from two pixels are refracted by this one cylindrical lens and intersect with each other at a point positioned on the surface of a tablet, and then reach the right eye and the left eye of a user, respectively.

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Tokyo, Japan

Nobuaki Takanashi