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1.发明申请公开(公告)号：US20190373230A1
公开(公告)日：2019-12-05
申请号：US16542302
申请日：2019-08-16
Inventor： Yoshiteru MINO , Kosuke KUBOTA , Masahito OGATA , Yuta YAMAMOTO
Abstract: A display device has a movable screen that is movable in a movement direction, a drive controller, a projector, and a position detector. The drive controller moves the movable screen relative to a reference position set at a prescribed position in a movement range of the movable screen. The projector performs drawing on the movable screen by irradiating the movable screen with light used for scanning the movable screen and projects a virtual image onto a target space based on light that passes through the movable screen. The position detector executes position detection processing for detecting that the movable screen is located at a detection position set in relation to the prescribed position. The position detector moves the movable screen and executes the position detection processing in a non-display period in which the movable screen is not irradiated with light from the projector.
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Patent Agency Ranking
2.发明申请公开(公告)号：US20200314399A1
公开(公告)日：2020-10-01
申请号：US16822814
申请日：2020-03-18
Inventor： Fumihito INUKAI , Kosuke KUBOTA , Yukihiro CHOKYU
IPC: H04N9/31
Abstract: An image display system includes: a light source driver configured to supply, to a light source, a drive current including a first current and a second current; a processor configured to output the set value of the first current to the light source driver; and a corrector configured to perform a correction process on the first current. The processor is configured to set, based on a correspondence relationship between the gradation value and the current value of the first current, the set value of the first current to a current value determined with reference to the correspondence relationship when the gradation value is in a second gradation range in which numerical values are smaller than numerical values in the first gradation range, the correction process correcting the correspondence relationship such that a difference between a measured intensity and a target intensity of the light source falls within a prescribed range.
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公开(公告)号：US20190018250A1
公开(公告)日：2019-01-17
申请号：US16068393
申请日：2017-01-10
Inventor： Ken'ichi KASAZUMI , Toshiya MORI , Kosuke KUBOTA , Masahito OGATA
CPC classification number: G02B27/0179 , B60K35/00 , B60K2370/1529 , B60K2370/177 , B60K2370/193 , B60K2370/334 , G01C21/3632 , G02B27/0101 , G02B2027/0141 , G02B2027/0185 , G09G3/02 , G09G5/377 , G09G2380/10
Abstract: Provided is a display device that allows a distance from a display medium to an object ahead to be easily ascertained. The display device includes a display unit that projects a light beam onto a windshield so as to be reflected from the windshield such that a virtual image is displayed in a space further than the windshield in the depth direction, and a controller that controls the display unit so that a reference pattern to be superimposed on a pedestrian present in the space is displayed so as to correspond to the position of the pedestrian.
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公开(公告)号：US20220003998A1
公开(公告)日：2022-01-06
申请号：US17480425
申请日：2021-09-21
Inventor： Masahito OGATA , Yoshiteru MINO , Kosuke KUBOTA , Toshiya MORI
Abstract: A video display system includes: a screen on which an mage for displaying a virtual image is projected; a light source that emits laser light; a scanner that projects the image onto the screen by biaxially scanning the laser light onto the screen; and a controller that generates the image and controls the light source using an image signal for causing the generated image to be projected onto the screen by the laser light, and receives an input of sensing information measured using a temperature sensor and controls the scanner in accordance with the input sensing information. When the sensing information indicates a temperature outside a given temperature range, the controller causes the scanner to reduce an amplitude of the biaxial scanning in at least one axial direction to a smaller value than when the sensing information indicates a second brightness or a temperature within the given temperature range.
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公开(公告)号：US20190306475A1
公开(公告)日：2019-10-03
申请号：US16363580
申请日：2019-03-25
Inventor： Fumihito INUKAI , Kosuke KUBOTA , Yukihiro CHOKYU
Abstract: The image display system includes a processing unit and a driving unit. The processing unit is configured to receive an image signal indicative of an instruction value of luminance of a light source. The driving unit is configured to supply a drive current to the light source in accordance with the instruction value indicated by the image signal received by the processing unit. The driving unit includes a shaping circuit and an adjusting unit. The shaping circuit includes a plurality of D/A converters and an arithmetic unit. The arithmetic unit is configured to output the drive current to the light source based on a computation result of analog signals outputted from the plurality of D/A converters. The adjusting unit is configured to determine values of digital signals inputted into the plurality of D/A converters of the shaping circuit in accordance with the instruction value.
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6.发明申请公开(公告)号：US20190302456A1
公开(公告)日：2019-10-03
申请号：US16363534
申请日：2019-03-25
Inventor： Kosuke KUBOTA , Ken'ichi KASAZUMI , Yoshiteru MINO , Toshiya MORI
Abstract: A display system according to an aspect includes a screen, a drive control unit, and a projection unit. The drive control unit has the screen moved in a movement direction. The projection unit renders an image on the screen by irradiating the screen with a light beam that scans the screen and projects a virtual image onto a projection plane with the light beam transmitted through the screen. The drive control unit has the screen moved in the movement direction such that an optical path leading to a rendering point on the screen varies its length according to a tilt angle defined by the projection plane with respect to a reference plane.
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