WO2013051376A1 - Display device - Google Patents

Abstract

Provided is a display device granting perspective to a display image and having a visually dramatic effect. A display device provided with a projector (40) for emitting a display light (L) showing the display image, and a screen (50) onto which the display light (L) is projected and which is adapted for displaying the display image, the display device projecting the display image displayed on the screen (50) onto a windshield (100) using a first and second reflecting member (80, 90), and displaying a display image (virtual image) (V), wherein the display device has, as the screen (50), a first screen (51) and a second screen (52) forming a non-parallel state with the first screen (51); a first display image (S1) constituting part of the display image is displayed on the first screen (51); and a second display image (S2) with a different display form from the first display image (S1) is displayed on the second screen (52).

Description

Display device

The present invention includes a projection display that emits display light indicating a display image, and a projection member to which the display light is projected, and the display image displayed on the projection member is projected to a predetermined position using a reflection unit. The present invention relates to a display device that projects onto a member and displays a virtual image.

Conventionally, as for this type of display device, for example, the one described in Patent Document 1 below is known. The display device described in Patent Document 1 includes a head-up display mounted on a vehicle, and includes a display device such as a projection display device that emits display light indicating a predetermined display image, and the display device. A display screen on which the display image is projected and a display screen to display the display image. The display image displayed on the transmission screen is reflected by a windshield (two reflecting mirrors). A predetermined projection member) and a display image (virtual image) is displayed to a driver who drives the vehicle.

JP 2004-126226 A

However, in the case of the display device described in Patent Document 1, a display that is displayed in front of the transmissive windshield (visible to the driver) due to the flat shape of the transmissive screen. The image becomes a display image with a poor perspective, and has a low visual effect.
SUMMARY OF THE INVENTION In order to address the above-described problems, an object of the present invention is to provide a display device that gives a sense of perspective to a display image and has a visual effect.

The present invention includes a projection display that emits display light indicating a display image, and a projection member that projects the display light and displays the display image, and the display image displayed on the projection member In a display device that projects onto a predetermined projection member using a reflecting means and displays a virtual image, the first projection member and a second projection that is not parallel to the first projection member are used as the projection member. A first display image that is a part of the display image is displayed on the first projection member, and the first display image is displayed on the second projection member. Is characterized in that a second display image having a different display form is displayed.

The present invention also includes a projection display that emits display light indicating a display image, and a projection member that is projected with the display light and displays the display image, and the display image displayed on the projection member. In a display device that projects a light on a predetermined projection member using a reflection means and displays a virtual image, the display light is displayed at a predetermined position of the projection member in the optical path of the display light from the projection member to the reflection means. And a transmission / reflection member that reflects the first display image that is transmitted and transmits the second display image that is displayed at a different location of the projection member that is different from the predetermined location. To do.

Further, the present invention is characterized in that an optical path changing member is disposed in the optical path of the display light from the projection target member to the reflecting means.

Further, the present invention is characterized in that an optical path changing member is disposed in the optical path of the display light from the projection target member to the transmission / reflection member.

According to the present invention, an initial purpose can be achieved, a display device can be provided with a sense of perspective, and a visual effect can be provided.

1 is a cross-sectional view of a display device according to a first embodiment of the present invention. The expanded sectional view which expands and shows the A section in FIG. The figure which shows the 1st to-be-projected member when it sees from the arrow B direction in FIG. The figure which shows the 2nd to-be-projected member when it sees from the arrow C direction in FIG. The figure which shows the 1st optical path change member by the embodiment. The figure which shows the 2nd optical path change member by the embodiment. The principal part front view of the projection member by the same embodiment. Sectional drawing of the display apparatus by 2nd Embodiment of this invention. The expanded sectional view which expands and shows the F section in FIG. The figure which shows a to-be-projected member when it sees from the arrow G direction in FIG.

(First Embodiment) An embodiment in which the present invention is applied to a head-up display for a vehicle will be described below with reference to the accompanying drawings.

In FIG. 1, a display device D including a head-up display according to the present embodiment is mounted on a vehicle such as an automobile, and includes a control means 10, a storage means 20, a housing 30, a projector (projection display). ) 40, a screen (projected member) 50, a prism sheet (optical path changing member) 60, a circularly polarizing plate 70, a first reflecting member 80, and a second reflecting member 90. The emitted display light L indicating two display images to be described later is guided to the first reflecting member 80 side through the screen 50, the prism sheet 60, and the circularly polarizing plate 70, and then the first and second reflections. Irradiation (projection) is performed on (using) the members 80 and 90 toward the windshield 100 of the vehicle, which is a predetermined projection member.

Then, the display light L is irradiated onto the windshield 100 in this way, so that the driver (user) P who drives the vehicle can view the scenery on the front side of the windshield 100 (front of the front of the vehicle driver's seat). A superimposed display image (virtual image) V composed of a first display image and a second display image, which will be described later, can be viewed.

The control means 10 includes a microcomputer having a CPU, ROM, RAM, an input / output interface, and the like. The control means 10 acquires image data from the storage means 20 in response to input of an external signal, input of an operation signal from an operation means (not shown), and the like, and a drive signal corresponding to the image data is obtained at a predetermined cycle. Light emission display drive control is performed to emit display light L that is output to the projector 40 and that displays a display image on the screen 50.

In the case of this example, it is assumed that the control means 10 has acquired the image data composed of the own vehicle image data and the runway image data from the storage means 20, and accordingly, the display image is based on the own vehicle image data. The own vehicle display image and the road shape display image based on the road image data are included.

That is, in this case, the display light L emitted from the projector 40 to the screen 50 includes the first display light L1 indicating the own vehicle display image based on the own vehicle image data and the runway shape display image based on the runway image data. 2nd display light L2 which shows.

The storage unit 20 includes a nonvolatile memory such as an EEPROM, and stores image data indicating a display image to be displayed on the display device D.

The housing 30 is made of, for example, black synthetic resin, and accommodates the projector 40, the screen 50, the prism sheet 60, the circularly polarizing plate 70, the first reflecting member 80, and the second reflecting member 90 inside. In addition, on the side facing the windshield 100, there is formed an emission portion 31 comprising an opening window for emitting the display light L toward the windshield 100. The emission portion 31 is covered with a translucent cover 32. Is closed.

The projector 40 projects the display light L indicating the display image (that is, the first display light L1 indicating the host vehicle display image and the second display light L2 indicating the runway shape display image) toward the screen 50. For example, a liquid crystal projector that forms display light by transmitting light from a light source through a liquid crystal panel.

In this case, the projector 40 emits the first display light L1 toward the first screen (to be described later) of the screen 50, and directs the second display light L2 to the second screen (to be described later) of the screen 50. Are emitted.

The screen 50 that is a projection target member is a transmissive screen that projects (displays) a display image by projecting the display light L emitted from the projector 40. In the case of this example, the screen 50 includes a first screen 51 as the first projection member as shown in FIG. 2 and a second projection member that is not parallel to the first screen 51. The first screen 51 is positioned below the second screen 52 in the positional relationship between the two screens 51 and 52.

The first screen 51 is disposed in the housing 30 in an inclined state, and the first display light L1 out of the display light L emitted from the projector 40 is projected and is, for example, a first vehicle display image. The display image S1 is displayed (displayed) (see FIG. 3).

Here, paying attention to the optical path of the first display light L1 from the projector 40 to the viewpoint of the driver P, the first display light L1 is emitted an odd number of times (that is, the first reflection member 80 and the second reflection member). 90 and the windshield 100) is reflected and reaches the driver P. When the first screen 51 is viewed from the direction of arrow B in FIG. 2 (when viewed from the front), it is displayed on the first screen 51. 1st display image S1 which consists of the own vehicle display image becomes a display design in which the display design was turned upside down.

On the other hand, the second screen 52 is disposed in the housing 30 so as to have an inclination angle different from the inclination angle of the first screen 51, and the second screen 52 out of the display light L emitted from the projector 40. The second display light L2 is projected, and the second display image S2, which is a runway shape display image having a different display form from the first display image S1, is projected (displayed) (see FIG. 4).

Here, paying attention to the optical path of the second display light L2 from the projector 40 to the viewpoint of the driver P, the second display light L2 is reflected an odd number of times in the same manner as the first display light L1, and the driver. In order to reach P, when the second screen 52 is viewed from the direction of arrow C in FIG. 2 (when viewed from the front), the second display image S2 composed of the runway shape display image displayed on the second screen 52 is displayed. Is a display design whose display design is vertically inverted like the first display image S1.

The prism sheet 60 includes a first prism sheet 61 as a first optical path changing member and a second prism sheet 61 as a second optical path changing member, and the first prism sheet 61 is a first prism sheet 61. Are disposed in the optical path of the first display light L1 (display light L) from the screen 51 (screen 50) to the circularly polarizing plate 70 (reflection member 80). Specifically, the first prism sheet 61 is disposed (fixed) on the surface of the first screen 51 on the circularly polarizing plate 70 side, and a plurality of first prism sheets 61 are provided on the front surface of the first light-transmitting substrate 61a that serves as a base material. The first prism portion 61b is provided.

And the 1st display light L1 which permeate | transmitted the 1st screen 51 injects into the 1st translucent base material 61a from the 1st back surface part 61c of the 1st prism sheet 61, and the 1st prism part 61b. Is reflected toward the circularly polarizing plate 70 side. In addition, the 1st back surface part 61c of the 1st prism sheet 61 is parallel to the 1st screen 51 (refer FIG. 5).

The second prism sheet 62 is disposed in the optical path of the second display light L2 (display light L) from the second screen 52 (screen 50) to the circularly polarizing plate 70 (reflection member 80). The Specifically, the second prism sheet 62 is disposed (fixed) on the surface of the second screen 52 on the circularly polarizing plate 70 side, and a plurality of the second prism sheets 62 are provided on the front surface of the second light-transmitting substrate 62a serving as a base material. The fine second prism portion 62b is provided.

Then, the second display light L2 that has passed through the second screen 52 is incident on the second translucent substrate 62a from the second back surface portion 62c of the second prism sheet 62, and the second prism portion 62b. Is reflected toward the circularly polarizing plate 70 side. The second back surface portion 62c of the second prism sheet 62 is parallel to the second screen 52 (see FIG. 6).

The circularly polarizing plate 70 is configured by laminating and integrating a linear polarizing plate 71 and a λ / 4 plate 72. In order to perform such lamination and integration, the linearly polarizing plate 71 and the λ / 4 plate 72 may be bonded using a transparent and optically isotropic adhesive 73 such as an acrylic adhesive. .

The order of lamination of the linearly polarizing plate 71 and the λ / 4 plate 72 is the λ / 4 plate 72 and the linearly polarizing plate 71 from the screen 50 side. For example, the circularly polarizing plate 70 is a transparent support (not shown). May be laminated). The linear polarizing plate 71 located on the first reflecting member 80 side and the λ / 4 plate 72 located on the screen 50 side have a transmission axis of the linear polarizing plate 71 and an optical axis of the λ / 4 plate 72 of about 45. By laminating so as to form an angle of degrees, it can function as a circularly polarizing plate.

Here, outside light such as sunlight enters the inside of the housing 30 through the translucent cover 32, and then passes through a predetermined optical path (for example, the second reflecting member 90 and the first reflecting member 80), and the linearly polarizing plate 71. In this case, the external light irradiated to the linearly polarizing plate 71 is converted into linearly polarized light by passing through the linearly polarizing plate 71, and the linearly polarized light is further converted into a λ / 4 plate. The light is converted into circularly polarized light by passing through 72 and reflected by the first screen 51 via the first prism sheet 61 or reflected by the second screen 52 via the second prism sheet 62. When the direction of the circularly polarized light viewed from the side where the light travels is reversed and the reflected circularly polarized light passes through the λ / 4 plate 72 and becomes linearly polarized light, the reflected linearly polarized light (reflected light) is orthogonal to the linearly polarized light at the time of incidence. So that It cannot pass through the linearly polarizing plate 71.

Thus, the problem that the screen 50 can be seen in the display area of the display image V by blocking the reflected light by the circularly polarizing plate 70 is solved, and the visibility of the display image V can be improved.

The first reflecting member 80 is a flat mirror formed by depositing a metal such as aluminum on a resin material such as polycarbonate to form a reflecting surface.

The second reflecting member 90 is a concave mirror formed by depositing a metal such as aluminum on a resin material such as polycarbonate to form a reflecting surface. In the present embodiment, the first reflecting member 80 and the second reflecting member 90 constitute the reflecting means M.

The display device D is composed of the above-described units. In such a configuration, the first display light L1 indicating the host vehicle display image (first display image S1) among the display light L emitted from the projector 40 passes through the first screen 51, and then the first display light L1 is transmitted. The light is guided to the circularly polarizing plate 70 side by the first prism sheet 61 (first prism portion 61b) fixed on one screen 51. Then, the first display light L1 reaching the circularly polarizing plate 70 becomes circularly polarized light through the λ / 4 plate 72 when emitted from the circularly polarizing plate 70, and thereafter, each of the reflecting members 80 and 90 and the translucent cover 32. The windshield 100 is irradiated through.

Thus, the 1st display light L1 is irradiated to the windshield 100, and the driver | operator P is the front side of the windshield 100, and the driver | operator P is the 1st display image (1st display image) which is a own vehicle display image. Virtual image) V1 can be visually recognized (see FIG. 7).

Here, in the optical path of the first display light L1 from the projector 40 to the driver P, the optical path length from the first screen 51 on the tire 51a side of the host vehicle to the windshield 100 in FIG. 3, since the optical path length from the first screen 51 location on the ceiling 51b side of the host vehicle to the windshield 100 is substantially the same, when the windshield 100 is viewed from the driver P side, The first display image V1, which is the host vehicle display image, is displayed substantially planarly.

On the other hand, of the display light L emitted from the projector 40, the second display light L <b> 2 indicating the travel shape display image (second display image S <b> 2) is transmitted through the second screen 52 and then on the second screen 52. Is guided to the circularly polarizing plate 70 side by the second prism sheet 62 (second prism portion 62b) fixed to the substrate. Then, the second display light L2 reaching the circularly polarizing plate 70 becomes circularly polarized light through the λ / 4 plate 72 when emitted from the circularly polarizing plate 70, and thereafter, each of the reflecting members 80 and 90 and the translucent cover 32. The windshield 100 is irradiated through.

In this way, the second display light L2 is applied to the windshield 100, so that the driver P can display a second display image that is a runway shape display image (directly below) the first display image V1. Second virtual image) V2 can be visually recognized (see FIG. 7).

Further, in this case, the first display image V1 that is the host vehicle display image and the second display image V2 that is the runway shape display image are displayed in front of the windshield 100 in a state where they are arranged side by side. In addition, in the optical path of the second display light L2 from the projector 40 to the driver P, the optical path length from the second screen 52 portion, which is the one end side 52a of the traveling path shape, to the windshield 100 in FIG. 3, the windshield 100 was viewed from the driver P side because it was set to be shorter than the optical path length from the second screen 52 location which is the other end side 52 b of the running path shape to the windshield 100. At this time, the second display image V2 that is the runway shape display image is displayed three-dimensionally with a sense of depth as if it is inclined from the near side toward the far side.

That is, in the runway shape display image (second display image V2), the one end side 52a described above is displayed on the near side, and the other end side 52b located on the opposite side to the one end side 52a is on the far side. Since it is displayed, it is configured so as to be displayed in three dimensions as if it is tilted.

As described above, in the present embodiment, the projector 40 that emits the display lights L1 and L2 indicating the display images S1 and S2, and the screen 50 that projects the display lights L1 and L2 and displays the display images S1 and S2. The display device D that projects the display images S1 and S2 displayed on the screen 50 onto the windshield 100 using the first and second reflecting members 80 and 90 and displays the display images V1 and V2. 1 includes a first screen 51 and a second screen 52 that is inclined so as to be in a non-parallel state with the first screen 51. The first display image S1 that is an image (part of the display image) is displayed, and the second screen 52 is a runway shape display image that has a display form different from the vehicle display image. In which the second display image S2 is displayed.

Therefore, when the driver P visually recognizes both the first display image V1 that is the host vehicle display image and the second display image V2 that is the runway shape display image, the second display of the display images V1 and V2 is displayed. Since the image V2 is three-dimensionally displayed with a sense of depth, a sense of perspective is given to the display image V formed by the first display image V1 and the second display image V2, and a visual effect is obtained. A display device can be provided.

In the present embodiment, the first prism sheet 61 is disposed in the optical path of the display light L (first display light L1) from the first screen 51 to the circularly polarizing plate 70 (first reflective member 80). The second prism sheet 62 is disposed in the optical path of the display light L (second display light L2) from the second screen 52 to the circularly polarizing plate 70 (first reflection member 80). Is provided, the optical path of the first display light L1 emitted from the first prism sheet 61 (first prism portion 61b) is changed to the circularly polarizing plate 70 side, and the second Since the optical path of the second display light L2 emitted from the prism sheet 62 (second prism portion 62b) is changed to the circularly polarizing plate 70 side, the luminance reduction of the display images V1 and V2 is suppressed as much as possible. There is a merit that you can.

(Second Embodiment) Next, a second embodiment of the present invention will be described with reference to FIGS. 8 to 10. The same reference numerals are used for the same or corresponding parts as in the first embodiment, and the details thereof are used. The detailed explanation is omitted. In the second embodiment, instead of the screen 50 composed of the first screen 51 and the second screen 52, a screen 110 composed of a single screen is adopted as a projection member, and the circularly polarizing plate is formed from the screen 110. The half mirror 120, which is a transmission / reflection member, is arranged (arranged) in the optical path of the display light L reaching 70 (see FIGS. 8 and 9).

The screen 110 is a transmissive screen that projects (displays) a display image by projecting the display light L emitted from the projector 40, and is disposed in the housing 30 in an inclined state.

Specifically, the screen 110 is projected from the display light L emitted from the projector 40 (the first and second display lights L1 and L2 employed in the first embodiment) and is composed of the own vehicle display image. A second display image S2 including the first display image S1 and the runway shape display image is displayed.

In the case of the second embodiment, in FIG. 10, the first display image S <b> 1 is displayed on the first portion of the screen 110 on the upper side of the screen 110 (that is, the circularly polarizing plate 70 side of the screen 110). Similar to the embodiment, it is displayed as an inverted display design, and in FIG. 10, a second side is displayed on the lower side of the screen 110 (that is, on the screen 110 opposite to the position where the circularly polarizing plate 70 is disposed). It is assumed that the display image S2 is configured to be displayed as an inverted display design as in the first embodiment.

The prism sheet 120 has the same function as the prism sheet 60 (that is, the first prism sheet 61 or the second prism sheet 62) employed in the first embodiment, and the screen 110 is changed to the half mirror 130. Are arranged in the optical paths of the display lights L1 and L2.

The prism sheet 120 as the optical path changing member is arranged (fixed) on the screen 110 so as to cover the entire surface of the screen 110, and a plurality of fine prism portions 122 are provided on the front surface of the translucent substrate 121 serving as a base material. Is provided.

The half mirror 130 is disposed in the optical path of each of the display lights L1 and L2 from the screen 110 to the circularly polarizing plate 70 (the first reflecting member 80), and the predetermined portion of the screen 110 (the screen 110 in FIG. 10). The first display image S1 displayed on the upper side of the screen 110 is reflected, and the second display displayed on another portion of the screen 110 different from the predetermined portion (the lower side of the screen 110 in FIG. 10). It consists of a transmissive reflecting member that transmits the image S2.

In the configuration of the second embodiment, of the display light L emitted from the projector 40, the first display light L1 indicating the host vehicle display image (first display image S1) is transmitted through the screen 110 and then the screen 110. The light is guided to the half mirror 130 side by the prism sheet 120 (prism portion 122) fixed on the top, and is reflected as reflected light to the circularly polarizing plate 70 side by the half mirror 130.

The first display light L1, which is the reflected light reaching the circularly polarizing plate 70, becomes circularly polarized light through the λ / 4 plate 72 when emitted from the circularly polarizing plate 70, and thereafter, each of the reflecting members 80, 90 and The windshield 100 is irradiated through the translucent cover 32. Thus, the 1st display light L1 is irradiated to the windshield 100, and the driver | operator P visually recognizes the 1st display image V1 which is a own vehicle display image similarly to the said 1st Embodiment. Can do.

On the other hand, of the display light L emitted from the projector 40, the second display light L <b> 2 indicating the travel shape display image (second display image S <b> 2) is transmitted through the screen 110 and then fixed on the screen 110. The light is guided to the half mirror 130 side by the prism sheet 120 (prism portion 122).

Then, the second display light L2 guided to the half mirror 130 side passes through the half mirror 130 and becomes transmitted light and reaches the circularly polarizing plate 70. Further, the second display light L2, which is the transmitted light reaching the circularly polarizing plate 70, becomes circularly polarized light through the λ / 4 plate 72 when emitted from the circularly polarizing plate 70, and thereafter, each of the reflecting members 80, 90, and The windshield 100 is irradiated through the translucent cover 32. Thus, the driver | operator P can visually recognize the 2nd display image V2 which is a runway shape display image by irradiating the 2nd display light L2 to the windshield 100. FIG.

As described above, also in the configuration of the second embodiment in which the half mirror 130 is disposed in the optical path of each of the display lights L1 and L2 from the screen 110 to the circularly polarizing plate 70, the driver P can wind the windshield 100. In this case, the first display light L1 is reflected using the half mirror 130 and the first display image L1 is reflected using the half mirror 130. Since the second display light L2 is transmitted, the first display image V1, which is the host vehicle display image visually recognized by the driver P, and the second display image, which is the runway shape display image, are not shown in detail. V2 is displayed in an overlapping state.

In addition, as in the first embodiment, in FIG. 10, the optical path length from the portion of the screen 110 that is the one end side 111 of the runway shape to the windshield 100 is the screen 110 that is the other end side 112 of the runway shape in FIG. 10. When the windshield 100 is viewed from the driver P side because the optical path length from the location to the windshield 100 is set shorter, the second display image V2 has the above-mentioned one end side 111 in front. Since the other end 112 described above, which is located on the side opposite to the one end 111, is displayed on the far side, it is displayed in a three-dimensional display as if it is tilted, as in the first embodiment. The effect of this can be obtained. In this case, although the detailed description is omitted, the first display image V1 is displayed in a substantially planar manner as in the first embodiment.

In the second embodiment, the prism sheet 120 is disposed in the optical path of the display lights L1 and L2 from the screen 110 to the half mirror 130, so that the light is emitted from the prism sheet 120 (prism unit 122). Since the display lights L1 and L2 are changed to the half mirror 130 side, there is a merit that a decrease in luminance of the display images V1 and V2 can be suppressed as much as possible.

In the second embodiment, the example in which the prism sheet 120 is configured to cover the entire surface of the screen 110 has been described. For example, the prism sheet 120 is divided into two prism sheets. One of the prism sheets is arranged on the surface portion of the screen 110 on the own vehicle display image side (first display image S1 side), and the other prism sheet is arranged on the runway shape display image side (second display image S1 side). ) May be disposed on the surface portion of the screen 110. In this case, the shape of the prism portion of the one prism sheet may be different from the shape of the prism portion of the other prism sheet as necessary.

In each of the above embodiments, the first display image S1 is composed of the own vehicle display image and the second display image S2 is composed of the runway shape display image. However, the first display image S1 and the first display image S1 are the same. It goes without saying that any display image can be adopted as long as it is a display image having a display form different from that of the second display image S2 (that is, different).

The present invention includes a projection display that emits display light indicating a display image, and a projection member that projects the display light to display the display image, and uses the reflection means to display the display image displayed on the projection member. Thus, the present invention can be applied to a display device such as a head-up display that projects onto a predetermined projection member and displays a virtual image.

DESCRIPTION OF SYMBOLS 10 Control means 20 Memory | storage means 30 Housing 32 Translucent cover 40 Projector (projection type display)
50, 110 screen (projected member)
51 1st screen (1st to-be-projected member)
52 Second Screen (Second Projected Member)
60, 120 Prism sheet (light path changing member)
61 First prism sheet (first optical path changing member)
62 2nd prism sheet (2nd optical path changing member)
70 circularly polarizing plate 71 linearly polarizing plate 72 λ / 4 plate 80 first reflecting member 90 second reflecting member 100 windshield (projecting member)
130 Half mirror (transmission / reflection member)
M Reflecting means S1 First display image S2 Second display image V Display image (virtual image)
V1 first display image V2 second display image

Claims (4)

A projection display that emits display light indicating a display image; and
A projection target that projects the display light and displays the display image;
In the display device that projects the display image displayed on the projection member onto a predetermined projection member using a reflection unit, and displays a virtual image.
As the projection member, it has a first projection member and a second projection member that is in a non-parallel state with the first projection member,
A first display image that is a part of the display image is displayed on the first projection member, and a second display form is different from the first display image on the second projection member. A display device in which the display image is displayed. A projection display that emits display light indicating a display image; and
A projection target that projects the display light and displays the display image;
In the display device that projects the display image displayed on the projection member onto a predetermined projection member using a reflection unit, and displays a virtual image.
In the optical path of the display light from the projection target member to the reflection means, the first display image displayed at a predetermined location of the projection target member is reflected and the projection target member is different from the predetermined location. A display device comprising a transmission / reflection member that transmits a second display image displayed at another location. The display device according to claim 1, wherein an optical path changing member is disposed in an optical path of the display light from the projection member to the reflecting means. The display device according to claim 2, wherein an optical path changing member is disposed in an optical path of the display light from the projection member to the transmission / reflection member.

Images