KR20110016118A - Head up display for navigation - Google Patents

Abstract

PURPOSE: A head up display for navigation is provided to allow a user to recognize an LCD image which is outputted from a car navigation system while having no interference to driving vehicle. CONSTITUTION: A head up display device for the small vehicle comprises a light source(100), an image source(200), an optical system(300), and a combiner(400). The light source generates illumination. The image source includes a micro display panel receiving varies image information which is necessary to a driver The optical system outputs an image from the image source through the illumination. The combiner reflects the image which is outputted from the optical system to a driver while having the image source and the optical system together with.

Description

Head up display device for navigation {Head up display for Navigation}

The present invention relates to a head-up display device for navigation. More specifically, a general vehicle navigation system for displaying map data, navigation, and additional information through an LCD monitor is for a driver to view an LCD monitor in a driving direction while driving. Since there is a problem of moving to the LCD monitor, a candidate facility object having a high importance in the driver's field of view is selected, and the additional information of the facility is displayed on the head-up display through the driver's visibility inspection among the selected candidate facility objects.

As electronic products are developed, they are applied to fields that help driving. A typical example is car navigation. However, the driver must check the objects in the field of view and drive while the vehicle also checks the driving state.

There are several systems that are being developed as a medium that provides the driver's safety while driving and effectively transmits the vehicle driving information and surrounding information to the driver, among which HUD (Head Up Display) is a major concern.

The HUD is a system that provides vehicle driving information or other information within the driver's front line, that is, within the range of the driver's main line of sight while driving a vehicle or aircraft. In the early days, the HUD was developed by being attached to an aircraft, especially a fighter aircraft.

There is a risk because the vehicle is usually about 55m at a time (about 2 seconds) while keeping the field of view on the instrument panel while driving at approximately 100m / h per hour. One way to reduce this risk is developing a vehicle HUD. The vehicle HUD displays information on the dashboard (speed, mileage, RPM, etc.) on the driver's field of view on the windshield, allowing the driver to easily capture driving information while driving. This allows the driver to drive safely by recognizing important driving information without taking his eyes off the road.

In other words, the driving information transmitted from the vehicle's internal system is converted into displayable data, and the data is reflected on the mirror and projected on the windshield to form a virtual image in the driver's field of view to provide the driver with driving information. Will be provided.

There are many ways to develop a HUD system in a vehicle.

Of these, the currently developed and used method is a projection method. In the case of the direct reflection method, the system itself is bulky, which makes it difficult to mount it in front of the handle.

In addition, due to the limitation of the distance adjustment with the combiner for displaying the virtual image through the driver's field of view, the size of the screen cannot be increased, and the image quality is also degraded.

In order to solve the above-mentioned problems, the present invention does not interfere with the safe driving of the user in the head-up display for car navigation (HUDN), and the LCD image output from the vehicle navigation system is The purpose is to be more clearly recognized by the driver.

In addition, another object of the present invention can be installed in all models, can be used as a portable and can be mounted in close proximity to the driver to implement a large screen, to realize a high-quality screen.

Head-up display device according to the present invention for achieving the above object is a light source for generating illumination light; An image source having a micro display panel for receiving and outputting various image information images required by a driver; An optical system for outputting an image from an image source through the illumination light; And a foldable combiner configured to reflect an image output from the optical system in a driver's direction and be integrated with the image source and the optical system. It is characterized by including.

In this case, the integrated structure of the head-up display device according to the present invention is a hexahedron, the mirror is formed on the inner surface so that the light is reflected from the interior of the hexahedron, the image source and the optical system is the inner surface of the hexahedron It is preferred that it is formed parallel to.

In addition, the head-up display device according to the invention is characterized in that the tinting treatment on the front or rear of the combiner.

In addition, the head-up display device according to the present invention may further include a stereoscopic image filter for converting the image output from the image source to a three-dimensional stereoscopic image.

In addition, the light source of the head-up display device according to the invention is characterized in that the laser light source.

 Therefore, the present invention has an effect that does not interfere with the safe driving of the user.

 In addition, the present invention has the effect that the driver can recognize the navigation image more clearly.

 In addition, the present invention can be installed in all models, there is an effect that can implement a high-quality screen.

 In addition, the present invention is not only portable, but also can be mounted in close proximity to the driver has the effect of implementing a large screen.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 is a diagram illustrating an overall configuration diagram and a head-up display device for a small vehicle according to the present invention.

As shown in FIG. 3, if the driver can display various information such as vehicle driving information, geographic information through navigation, and various instrument panel information such as the speed of the vehicle within a range not departing from the driving field of view, As a driver, there is an advantage that the vehicle operation can be quite stable. And a combiner that reflects the holographic image output from the mirror system in the driver's direction. The mirror system controls the output direction of the holographic image to position the display area of the holographic image above the driver's line of sight.

The mirror system may control the reflection angle of the mirror so that the display area of the holographic image is located above the driver's gaze height in response to a change in the gaze height of the driver. In addition, the display area of the holographic image may be fixed to the front of the driver in the horizontal direction.

As described above, the conventional HUD system for a vehicle has been in the future as an in-dash type or a portable type on a dashboard in front of a handle in consideration of a driver's viewing angle. However, the driver's focus is fixed on the mirror because the driver sees the virtual image through a real mirror with reflectance. In general, the distance between the driver and the mirror is up to 80 cm. Depending on the individual differences in vision, the virtual image may or may not be visible. In order to eliminate this inconvenience, as shown in FIG. 2, the present invention secures a portable HUD system to a sun visor of a vehicle to reduce the distance between the eye and the HUD mirror, thereby improving readability and improving screen image. Has a merit that the large screen can be implemented.

4 is a view showing a schematic diagram and principle of a head-up display device for a folding type vehicle mounted on a mirror system according to another embodiment of the present invention. As shown in FIG. 4, it is a system provided with the foldable combiner 400 in which the combiner 400 was integrated. The micro display panel 200 is configured to directly reflect the information image to the combiner so that the micro display panel 200 is displayed as a virtual image at a certain distance from the driver.

That is, the micro display panel 200 generates light from the red, green, and blue light sources 100 that generate illumination light, and the generated light generates a video image including various information required by an actual driver. The reflected or transmitted image information is displayed through the combiner 400 to display the virtual 3D image 600 information at a predetermined distance in front of the driver's field of view.

In addition, the embodiment of the present invention shown in FIG. 4 does not specifically limit its structural shape, so that each optical element may be disposed in accordance with the miniaturization of the system to be pursued by the present invention.

As such, the present invention is a portable head-up display (HUD) device including a micro display panel 200, a mirror, and a combiner 400, as shown in FIG. It is possible to form the virtual image 600. When the head-up display device can be configured near the driver's field of view, the virtual image 600 can be made larger and closer, and the resolution of the image can be much higher.

In addition, the light source 100 may be used as an illumination light source, UHP Lamp, LED and laser. It can be used as a suitable light source according to the system's specification and design, and of course, the HUD system can select various light sources according to its characteristics.

In addition, the micro display panel 200 may be used as an LCD, LOCS, DMD, or the like. That is, by using such a flat panel display device, not only can the system configuration efficiency be improved, the system can be easily miniaturized and slimmed, but also a projection optical system that reflects or transmits various image information required by the driver is realized. It is also easy to do.

In addition, it is desirable to have a three-dimensional image filter between the micro display panel, which is an image source, and the optical system. By mounting the three-dimensional image filter, the three-dimensional image information displayed to the driver is realized in three dimensions. It is possible to provide a better display of information to the driver, and the two-dimensional image of a large amount of information can solve the problem of obscuring the driver's field of vision.

In addition, it is preferable that the above-mentioned combiner 400 is treated with a tinting 410, which folds the sun visor and mounts the HUD device according to the present invention in the form of a clip, so that the driver's driving field of view is reduced. Because it interferes with the tinting 410 treatment on one surface of the combiner 400, it is possible to secure the driving field without glare from sunlight.

As shown in FIG. 4, the integrated portable head-up display device can selectively use the HUD device according to the needs of the driver.

5 is a view illustrating a display principle of a conventional dashboard type HUD device and a mirror system HUD system according to the present invention. As shown in FIG. 5, the virtual image conveys information to the driver's eyes through a transflective mirror, that is, a combiner. Due to the characteristics of the same optical system, the viewing angle of the virtual image is smaller than the viewing angle of the semi-transparent mirror, and the screen size of the virtual image is perceived as the image size projected onto the semi-transmissive mirror. For example, when projecting a virtual image of 8 inch size at a distance of 3 meters, such as a dashboard type, and comparing the same 8 inch size image at a distance of 1 m of the sun visor type according to the present invention, a large screen can be realized in the same optical system. do.

6 is a diagram illustrating a schematic diagram of a slim head-up display device as another embodiment of the present invention.

The figure shown in FIG. 6 illustrates only the slim-type head-up display device. Referring to the drawings, a slim vehicle head-up display system includes a light source 100, an image source 200, and an optical system 300 composed of a mirror and a combiner. At this time, the light source 100, the image source 200, and the optical system 300 is installed in the hexagonal housing, the structure of the folder-shaped combiner 400 is integrally formed. However, in the drawings, the mirrors 312 in the optical system 300 are shown to be installed in parallel to each other in a direction opposite to each other, but is not limited thereto, and the positions of the mirrors 312 may be variously changed.

Here, the image source 200 may be connected to an external display device (for example, a liquid crystal display (LCD), a digital micromirror device (DMD), etc.) through a connection terminal (not shown), in which case the connection terminal In addition to receiving and outputting an image signal from an external display device, the display device may be implemented as a display device such as an LCD or a DMD to directly output an image.

The light source 100 outputs light for reflecting or transmitting the image output by the image source 200. The image reflected or transmitted by the light source 100 is sequentially reflected and outputted while changing the reflection angle in the direction of the combiner 400 by the reflection mirror or the optical system 300 in the housing. The virtual image is displayed to the driver through the binner 400.

Thus, when providing a slim HUD device according to the present invention, the weight of the device is much reduced, the size of the device is much reduced, there is an advantage in miniaturization and low cost.

As described above, the present invention has been described by specific embodiments such as specific components and the like. For those skilled in the art to which the present invention pertains, various modifications and variations are possible.

Therefore, the spirit of the present invention should not be limited to the described embodiments, and all the things that are equivalent to or equivalent to the claims as well as the following claims will belong to the scope of the present invention. .

1A is a schematic diagram of a conventional HUD optical system for a vehicle,

1B is a schematic diagram when a driver of an actual vehicle uses a conventional HUD system,

Figure 1c is a view showing the principle of a conventional HUD system,

2 is a view illustrating a display method using a conventional vehicle head-up display device;

3 is a diagram illustrating an overall configuration diagram and a head-up display device for a small vehicle according to the present invention,

4 is a view showing the schematic diagram and principle of a head-up display device for a folding type vehicle equipped with a mirror system according to another embodiment of the present invention;

5 is a view illustrating a display principle of a conventional dashboard type HUD device and a mirror system type HUD system according to the present invention;

6 is a diagram illustrating a schematic view of a slim mirror system type head-up display device as another embodiment of the present invention;

Claims (5)

A light source generating illumination light; An image source having a micro display panel for receiving and outputting various image information images required by a driver; An optical system for outputting an image from an image source through the illumination light; And A foldable combiner configured to reflect an image output from the optical system in a driver's direction and be integrated with the image source and the optical system; Small vehicle head-up display device comprising a. The method of claim 1, wherein the integrated structure, A hexahedron, wherein the mirror is formed on the inner surface so that the light is reflected inside the hexahedron, the image source and the optical system is formed in parallel to the inner surface of the hexahedron characterized in that the compact vehicle head-up display device.   The method according to claim 1 or 2, Head-up display device for a small vehicle, characterized in that the tinting process on the front or rear of the combiner. The method according to claim 1 or 2, And a stereoscopic image filter for converting an image output from the image source into a 3D stereoscopic image. The method of claim 1 or 2, wherein the light source, A small vehicle head-up display device, characterized in that the laser light source.

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