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Projection display device for vehicle

A projection display and vehicle technology, which is applied in vehicle parts, transportation and packaging, optics, etc., can solve the problems of reduced perceptibility and disappearance, and achieve the effect of less energy and less heat

Active Publication Date: 2016-02-10
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the high transparency makes the perceptibility of the information displayed on the reflective surface greatly reduced or disappears completely under unfavorable light levels and especially under glare light

Method used

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  • Projection display device for vehicle
  • Projection display device for vehicle

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Experimental program
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Embodiment Construction

[0031] figure 1 A vehicle 1 is shown in which a projection display device 2 according to the invention is installed at the driver's seat. A control unit 5 generating image signals and an optical imaging unit 4 are installed in a dashboard 9 . The combination element 3 is placed directly in front of the windshield glass 6 from the driver's line of sight, wherein the installation method of the combination element is figure 1 not shown in . The upper edge of the composite element 3 is located below the driver's eye level, which can be seen from the line of sight 12 . In this case, the combination element 3 covers the visual field between the sight lines 10a and 10c in the vertical direction. Reflective surface 3 is reflective over its entire surface facing the driver. Thus, the image points of the display to be imaged can be seen through the viewing angle lying between rays 10 a and 10 c. The line 11 describes the beam path of such an image point by way of example.

[0032]...

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PUM

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Abstract

The projection display device (2) has a flat combiner element (3), where the combiner element is arranged between a vehicle occupant and a disk of the vehicle, such that an image is superimposed at the combiner element in the visual range of a viewing direction of the vehicle occupant. An area of the combiner element is formed partly with a reduced transparency in a manner that it covers a part of the vehicle, which locks the free view through the combiner element from the view of a vehicle occupant behind the combiner element. An independent claim is also included for a method for operating a projection display device.

Description

technical field [0001] The invention relates to a projection display device for a vehicle, a vehicle having a projection display device, and a method for operating the projection display device. Background technique [0002] Projection displays for vehicles, also known as head-up displays (head-up displays), display information by reflection on transparent surfaces, for example vehicle windows. Here, the displayed information is projected into the observer's eyes as a virtual image and can be perceived simultaneously with the surroundings visible behind the reflective surface. Combined projection display devices, so-called combined head-up displays, have their own transparent reflective surfaces. The projection display device is arranged in the vehicle interior as an additional device element, referred to below as a combination element, in the direction of the line of sight from the vehicle window. To display the information, the projection display device illuminates the c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B27/01B60R11/02
CPCG02B27/01G02B27/0101G02B2027/0118G02B2027/0123G02B2027/0187
Inventor C·科勒R·迈耶D·格里姆B·斯特劳布
Owner ROBERT BOSCH GMBH