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Image display device for vehicle

一种影像显示、车辆的技术，应用在车辆部件、静态指示器、运输和包装等方向，能够解决驾驶员无法正常地视觉辨认影像等问题，达到简单构造的效果

Active Publication Date: 2018-07-17
MAXELL HLDG LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, when the direction of the image light projected from the HUD does not match the position of the driver's eyes, the driver cannot normally visually recognize the image.

Method used

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  • Image display device for vehicle
  • Image display device for vehicle
  • Image display device for vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0079] In Embodiment 1, an example of the mirror adjustment mechanism of the head-up display (HUD) of the present invention will be described, and for easy understanding, it will be described in comparison with a conventional adjustment mechanism.

[0080] Figure 7 It is a figure explaining the conventional mirror adjustment method 1. The image light emitted from the image display device 2 is reflected by the reflector 3 , reflected at the reflective position 70 of the windshield, and enters the driver's eyes 8 , where the driver visually recognizes it as a virtual image 9 . When the positions of the eyes 8 (hereinafter referred to as viewpoints) change as A, B, and C due to the height of the driver, the image light emitted from the video display device 2 may not be incident on each viewpoint, or may be missing even if it can enter. part of the image. In order to cope with this, in the conventional adjustment method 1, a mechanism for rotating the three mirrors by the mirro...

Embodiment 2

[0109] Embodiment 1 is a configuration in which the driver observes an image to determine the optimum position for mirror adjustment, that is, a manual adjustment method. In contrast, Embodiment 2 is a method of calculating the position of the driver's eyes and automatically adjusting the position of the reflector to an optimal state corresponding thereto. In order to detect the position of the driver's eyes, in this embodiment, the position of the center of gravity of the driver is obtained from the position and weight of the driver, and the position of the eyes is calculated from the position of the center of gravity.

[0110] Thereby, when the driver is replaced by another driver, or when the driving posture of the same driver changes, it is possible to track the position of the eyes of the driver at that time and display an image that is easiest to see. In addition, the adjustment mechanism of the mirror adopts the adjustment methods described in the first embodiment, and ...

Embodiment 3

[0122] In the third embodiment, a configuration in which the entire HUD is moved left and right within the instrument panel in order to move the image display area in the left and right directions will be described. For example, it is necessary to move the display area in the left and right directions in the following cases.

[0123] (1) When the position (viewpoint) of the driver's eyes moves in the left-right direction.

[0124] (2) When the driver's posture (center of gravity position) moves in the left-right direction.

[0125] (3) When the traveling direction of the vehicle changes according to the driving operation (steering wheel operation, direction indicator).

[0126] (4) When the direction of the driver's line of sight changes according to road guidance (left and right turn signs, intersection distance).

[0127] (5) When the direction of the driver's line of sight changes due to an obstacle (a traffic jam, a pedestrian intruding suddenly).

[0128] Changes in th...

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Abstract

Provided is an image display device for a vehicle that can make an image suitably visible by a simple structure even if the position of the driver's eyes changes. An image display device 100 for a vehicle is provided with: an image display unit 2 that has a light source and a display element and outputs image light; a mirror 3 that reflects the image light output by the image display unit 2 towarda windshield 7; a mirror drive unit 4 that changes the angle and position of the mirror 3; and a control unit 10 that determines amounts of change in the angle and position of the mirror and controlsthe mirror drive unit 4. The control unit 10 makes determinations of the amount of change for the angle and position of the mirror in association with each other such that the image is visible even if the position of the driver's eyes 8 changes and the display state of the image with respect to the driver does not change.

Description

technical field [0001] The present invention relates to a video display device for a vehicle that is suitable for being mounted on a vehicle or the like to display various video information. Background technique [0002] In recent years, as one of technologies for superimposing and displaying images on real space, a vehicle image display device (so-called head-up display (hereinafter referred to as HUD) that displays various information on the windshield (also referred to as windshield) of a vehicle )) get practical. For example, by providing information for the driver as displayed video information, it is possible to support the driving operation of the vehicle. [0003] The basic structure of the HUD is to project an optically generated image onto the windshield, and the reflected image light enters the driver's eyes, and the driver can visually recognize the virtual image in front of the windshield. At this time, the image (virtual image) looks different depending on th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/01B60K35/00
CPCB60K35/00G09G3/001G09G5/00G09G2320/06G09G2380/10G09G2320/0626G09G2354/00G09G2360/144G02B2027/0118G02B27/0101G02B27/0149G02B27/0179G02B2027/0159G02B2027/0181B60K35/23B60K2360/23B60K2360/334B60K35/81B60K35/658B60K35/654G02B2027/014G02B2027/0183G02B2027/0187G09G3/02G09G5/38
Inventor 永野裕己佐藤壮太藤田裕司中田卓见金子一臣
Owner MAXELL HLDG LTD
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