Projection-type display device, safe-driving support method, and safe-driving support program

    公开(公告)号:US10302941B2

    公开(公告)日:2019-05-28

    申请号:US15613273

    申请日:2017-06-05

    Abstract: Provided are a projection-type display device, a safe-driving support method, and a non-transitory computer readable recording medium storing a safe-driving support program capable of securing safety while providing sufficient information to a driver even in a situation where a field of vision in a traveling direction of a motor vehicle is poor. An HUD includes a light modulation unit that modulates light emitted from a light source unit; a projection unit that projects the light modulated by the light modulation unit onto a combiner; a first image information generation unit that generates first image information and outputs the first image information to the light modulation unit; a second image information generation unit that generates second image information and outputs the second image information to a display device; and a control unit that controls operations of the first image information generation unit and the second image information generation unit.

    Head-up display emitting light of different colors from a plurality of light sources, and light source control method thereof

    公开(公告)号:US10404956B2

    公开(公告)日:2019-09-03

    申请号:US15622047

    申请日:2017-06-13

    Abstract: A projection display device and a light source control method thereof capable of improving visibility of specific information without increasing a manufacturing cost and a power consumption amount are provided. An HUD includes a plurality of light sources that emit light beams with different colors, a projection unit that projects light according to image information among the light beams emitted from the plurality of light sources onto a combiner, and a light source control unit that sequentially emits lights from the plurality of respective light sources according to a predetermined light emission amount pattern. The light source control unit performs control for causing at least one of the light sources other than a specific light source among the plurality of light sources to emit light with a smaller light emission amount than a light emission amount of the specific light.

    Projection-type display device and heat dissipation method

    公开(公告)号:US10168604B2

    公开(公告)日:2019-01-01

    申请号:US15468387

    申请日:2017-03-24

    Abstract: A projection-type display device includes: R, G, and B light sources that emit light beams with different colors; a projection unit that projects light beams based on image information among light beams emitted from the light sources onto a projection screen; a heat sink that radiates heat generated from the R light source, which has a maximum change in light emission intensity relative to a change in temperature, among the light sources; and a heat sink that radiates heat generated from the G and B light sources and that has a surface area smaller than that of the heat sink. In a use state, the R light source is disposed on a side apart from the other light sources in a direction opposite to a direction of gravitational force.

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