JP2008076814A - Image display device with projector function and image display system - Google Patents

Abstract

The present invention provides a video display device with a projector function and a video display system that are small, light, easy to handle and carry with a simple structure and do not require a projector-specific installation space. The video display apparatus 1 includes a main body unit 2, a first display unit 3, an optical system 10 including a light source unit 11, a liquid crystal panel 12, a mirror 13, and a lens unit 14, a switching mirror 30, a support member 40, and an external device. The display unit 50 is mainly provided.
The projector function-equipped video display system 100 of the present invention mainly includes the projector function-equipped video display device 1 and an external display unit 50.
[Selection] Figure 1

Description

  The present invention relates to an image display device with a projector function and an image display system, and more particularly, an image display with a projector function that uses the same optical unit for displaying images on a distant view and displaying images on display means of the image display device. The present invention relates to an apparatus and a video display system.

Conventionally, a projector is connected to a laptop computer via a cable, for example, so that a large number of people can view the video displayed on the display of a portable video display device such as a laptop computer. Using this projector, an image displayed on the display is projected and enlarged on a screen provided far away.
However, according to such means, a projector and a cable separate from the notebook personal computer are required. In particular, since the projector is a large device, it is inconvenient to carry and reduces the portability of the notebook computer. In addition, the cost of introducing such equipment was high.

In view of such a problem, a projector as shown in Patent Document 1 has been developed.
A projector disclosed in Patent Document 1 includes a transmissive liquid crystal panel, and a back plate including a backlight or the like that illuminates the liquid crystal panel from the back, and a notebook including a liquid crystal display unit configured to be detachable from the back plate A projector that displays a display image of a computer as a projection image on a screen, a housing-like projector body that houses a liquid crystal display unit with a rear panel removed, and a liquid crystal display unit that is disposed in the projector body from the front A light source means for illuminating and a lens unit mounted on the back side of the projector main body and positioned behind the liquid crystal display unit housed in the projector main body. It is used by putting it on a personal computer.
JP-A-9-90503 (FIG. 1)

  However, since the projector shown in Patent Document 1 has a large-scale configuration in which each member is housed inside a housing-like projector body, the entire apparatus is large in size and heavy, and handling such as moving the entire apparatus or the like. It was inconvenient to carry. Moreover, the manufacturing cost was high.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a video display device and a video display system with a projector function that have a simple configuration, are small and lightweight, and are easy to handle and carry.

  The present invention that has solved the above problems is a projector function-equipped video display device that has a projector function for projecting video light onto a display means and displaying the projected light as a projected video, the main body having control means, and the main body A main body display section pivotally mounted on the main body, and having a transmission screen for transmitting the image light and displaying a projected image, and an image sent from the main body section connected to the rear side of the main body section so as to be separated from each other An optical unit that outputs a signal as video light, a switching mirror that reflects and switches video light output from the optical unit to the main body display unit or an external display unit installed outside, and the switching mirror to the main body A support member that is rotatably supported by being separated from the rear side of the display unit, and the optical unit transmits the light signal from the light source unit and the light from the light source unit. A liquid crystal panel for converting to image light; an optical path changing mirror for reflecting the image light transmitted through the liquid crystal panel to change an optical path; and the image light reflected by the optical path changing mirror being enlarged and switched. And a lens unit to be sent to the mirror.

  According to such a configuration, the video display device with a projector function converts the video signal transmitted from the control unit of the main unit into video light via the light source unit of the optical unit and the liquid crystal panel, and The optical path is changed by the optical path changing mirror, enters the lens unit, and is sent from the lens unit to the upper switching mirror. The image display device with a projector function switches the reflection direction of the image light by the switching mirror, and displays the image light as a projection image on the transmission screen of the main body display unit. In addition, the image display device with a projector function rotates the reflection direction of the switching mirror by a predetermined angle and switches it to reflect it to an external display unit installed outside in advance and display it as a projected image.

  In the video display device with a projector function according to the present invention, the support member includes a support arm and a slide arm slidably provided on the support arm, and one end of the support arm has the main body display. The other end portion of the slide arm may be attached to the side surface portion of the switching mirror via the rotating portion.

  According to such a configuration, the projector-function-equipped video display device slides the slide arm along the support arm to contract the entire support member. In this state, the support arm uses the rotating portion of the support arm as a fulcrum. In addition to rotating the slide arm along the support arm toward the main body display unit side, the switching mirror is rotated about the rotation unit so that the switching mirror overlaps the rear surface side of the main body display unit. Can be folded to the main body display portion side.

In the video display device with a projector function of the present invention, the main body may be a main body of a notebook personal computer.
The image display device with a projector function configured as described above can create or store data such as images and characters that become projection images. The projector function-equipped video display device can display this data as a projected video on the main body display unit or an external display unit installed outside.

  The projector function-equipped video display system of the present invention is disposed separately from the projector function-equipped video display device according to any one of claims 1 to 3 and the projector function-equipped video display device, And the external display unit that displays the image reflected by the switching mirror.

  The thus configured video display system with a projector function can display a projected video on the main body display unit or an external display unit installed outside without separately using a projector.

  According to the image display device with a projector function of the present invention, the image light incident on the switching mirror from the same optical unit is switched to the main body display unit by rotating the reflection direction of the switching mirror by a predetermined angle and switching. Since it can be shared for video display and video display on an external display unit installed outside, the configuration of the video display device with projector function becomes simple, and the video display device with projector function is reduced in size and weight. This makes it easy to handle and carry the video display device with a projector function.

  In addition, by folding the switching mirror to the main body display unit side, the video display device with a projector function can be miniaturized, and the video display device with a projector function can be more easily handled and carried.

  In addition, by using the main body as a main body of a notebook personal computer, data such as images and characters that become projection images can be created or stored. The video display device with a projector function can display this data as a projected video on the main body display unit or an external display unit installed outside, and the convenience is enhanced.

  Further, according to the video display system with a projector function of the present invention, the projection video can be displayed on the main body display unit or the external display unit installed outside in advance without using a separate projector. Installation space is not required, and space can be saved.

Embodiments of a video display device with a projector function of the present invention will be described below with reference to the drawings. In the drawings to be referred to, FIG. 1 is an overall configuration diagram of an image display device with a projector function of the present invention, and shows a state in which a switching mirror reflects image light on the front side of an external display unit. 2 is a perspective view of the video display device main body of the video display device with a projector function according to the present invention as viewed from the rear, and FIG. 3 is an overall configuration diagram of the video display device with a projector function according to the present invention. FIG. 4 is a diagram illustrating a state in which image light is reflected on the back side of the main body display unit, and FIG. 4 is a partially enlarged view of the optical unit of the image display device with a projector function according to the present invention as viewed from above.
In the description in the present specification, the upper and lower directions are based on the directions described in the drawings. In addition, regarding the main body display unit 3 described later and the external display unit 50 described later, the front is referred to as a front surface and the rear is referred to as a rear surface.
1 and 3 are the same in configuration except that the switching direction of the switching mirror 30 described later is different, and therefore FIG. 1 will be described as a representative diagram.

As shown in FIG. 1, the video display device 1 with a projector function mainly includes a video display device main body 1 a including a main body 2 and a main body display 3, an optical unit 10 connected to the main body 2, and The switching mirror 30 positioned above the optical unit 10 and a support member 40 that supports the switching mirror 30 apart from the back side of the main body display unit 3 are configured.
For example, a notebook personal computer, a DVD player, or the like can be used as the video display device main body 1a.

  As shown in FIG. 2, the main body 2 of the video display device main body 1 a is a portion that does not include the main body display 3, and the keyboard 4, for example, serves as input means for the user to input various information on the upper surface. A mouse pad 8, a trackball (not shown), and the like are provided.

In addition, a control signal is transmitted to the light source unit 11 (see FIG. 1), which will be described later, or the liquid crystal panel 12 (FIG. 1), which will be described later, based on an input signal input from the keyboard 4 by the user. Control means (not shown) for transmitting a video signal for displaying the original video. Here, the original image refers to an image before the light from the light source unit 11 to be described later is applied.
Further, the control means (not shown) inverts the original image as a mirror image according to the display means and displays it on the liquid crystal panel 12 (see FIG. 1) described later. Details will be described later.
Further, the control means (not shown) includes a processing means, a storage means, and the like, and can create or store data of characters and images that become projection images.

The main body display unit 3 is pivotally provided in the vicinity of the upper end of the main body unit 2 so as to be rotatable to the main body unit 2 via a rotating unit 5 (see FIG. 1). And a transmissive screen 7.
As shown in FIG. 2, the outer frame 6 has an opening inside a rectangular flat plate made of plastic or the like. The transmissive screen 7 is fitted into the opening, so that the transmissive screen 7 The front part and the back part are exposed.
The main body display unit 3 may have various operation buttons for user operations.

The transmissive screen 7 is a display unit of the video display apparatus main body 1a, and transmits video light and displays it as a projected video.
As the transmissive screen 7, a known material such as an acrylic material or a processed transmissive liquid crystal is appropriately used.

As shown in FIG. 1 again, the optical unit 10 is connected to the rear side of the main body 2 via a support member 20.
The optical unit 10 converts a video signal transmitted from a control means (not shown) into video light, and makes this video light enter a switching mirror 30 described later. FIG. 1 or FIG. As shown in FIG. 3, the light source unit 11, the liquid crystal panel 12 disposed behind the light source unit 11, the optical path changing mirror 13 disposed behind the liquid crystal panel 12, and the optical path changing mirror 13 are disposed in the housing 16. An optical path changing mirror 13 and a lens unit 14 arranged coaxially are provided above.
As shown in FIG. 4, a cooling fan 15 is attached inside the housing 16 to cool the light source unit 11.

As shown in FIG. 1 or FIG. 4, the light source unit 11 serves as a light source for displaying a projected image on the transmissive screen 7 or the external display unit 50, and is transmitted from a control means (not shown). The light is emitted based on the control signal. The light emitted from the light source unit 11 illuminates the liquid crystal panel 12 from the front, and is projected on the transmission screen 7 or the external display unit 50 through the optical path changing mirror 13, the lens unit 14, and the switching mirror 30. It is like that.
For the light source unit 11, known means such as a white lamp, a high-pressure mercury lamp, and an LED are appropriately used.

The liquid crystal panel 12 displays an original image based on a control signal from a control means (not shown), and mainly includes a liquid crystal, a polarizing filter, an alignment film, an electrode, an RGB color filter, and the like. Is done.
In this liquid crystal panel 12, the azimuth angle of the arrangement of liquid crystal molecules is appropriately changed based on a video signal from a control means (not shown), and an original video is created on the liquid crystal panel 12. The original image created in this manner is image light that allows the light transmitted from the light source unit 11 to be transmitted from the front part to the rear part of the liquid crystal panel 12 along the arrangement of liquid crystal molecules, so that the original image can be viewed. And is emitted toward an optical path changing mirror 13 to be described later.

  The optical path changing mirror 13 reflects the image light transmitted from the liquid crystal panel 12 and changes the optical path of the image light toward the lens unit 14. The optical path changing mirror 13 is mainly configured to have a mirror formed in a substantially rectangular shape, and the mirror surface is fixed at a predetermined angle with respect to the liquid crystal panel 12 and the lens unit 14. The arrangement of the mirror will be described in detail later.

The lens unit 14 enlarges the image light incident from the optical path changing mirror 13 to a size to be displayed on the main body display unit 3 or the external display unit 50 by transmitting the lens surface through the lens surface. Is emitted toward the switching mirror 30. The lens unit 14 is positioned coaxially with the switching mirror 30 when in use. Details will be described later.
The lens unit 14 is configured by combining one or more known magnifying lenses. Moreover, a concave lens is also combined if necessary.

  Again, as shown in FIG. 1, the switching mirror 30 reflects the image light incident from the lens unit 14 to the back side of the transmissive screen 7 or the front side of the external display unit 50. An outer frame 31 formed of plastic or the like and a known mirror surrounded by the outer frame 31 are configured.

The switching mirror 30 is positioned at a predetermined distance from the back side of the main body display unit 3 by a bar-like support member 40 extending substantially horizontally from the side surface part of the main body display unit 3 toward the side surface part of the outer frame 31 of the switching mirror 30. The main body display unit 3 is rotatably supported. By rotating the switching mirror 30 by a predetermined amount in the front-rear direction and adjusting the tilt angle, the reflection direction of the image light is switched and reflected to the transmissive screen 7 or the external display unit 50. The inclination angle of the switching mirror 30 and the positional relationship with the optical path changing mirror 13 will be described later.
The switching mirror 30 is arranged at a predetermined distance from the transmission screen 7 in order to make the projection distance from the switching mirror 30 uniform between the upper part and the lower part of the transmission screen 7. When the distance between the switching mirror 30 and the transmissive screen 7 is increased, the unevenness of the projected image displayed on the upper and lower parts of the transmissive screen 7 can be reduced.

The support member 40 supports the switching mirror 30 so as to be rotatable while being separated from the back side of the main body display unit 3.
The support member 40 includes, for example, a hollow cylindrical support arm 40 a whose one end is attached to the side surface of the main body display unit 3 via the rotation unit 42, and the switching mirror 30 having the other end via the rotation unit 41. A slide arm 40b having a diameter smaller than that of the support arm 40a attached to the side surface portion is combined into a single long bar shape.

  The slide arm 40b is slidable in the front-rear direction along the support arm 40a inside the support arm 40a, and makes the switching mirror 30 close to the back side of the main body display unit 3 or the back surface of the main body display unit 3 Can be separated from the side.

  The rotating parts 41 and 42 are formed to have, for example, a screw mechanism. For example, the screws are loosened to rotate the support member 40 or the switching mirror 30 to a desired position and then tighten the screws. Thus, the support member 40 or the switching mirror 30 can be fixed at a desired position.

The external display unit 50 is a display unit for displaying a projected video on a large screen so that a large number of people can check the projected video at the same time, and is arranged in advance away from the video display device main body 1a.
As the external display unit 50, for example, a reflective screen installed on a wall or the like, a transmissive screen, or the like can be used.
Note that a white wall or the like may be used instead of the external display unit 50.

Here, the arrangement of each member in the present embodiment will be described. In the drawings to be referred to, FIG. 5 is an explanatory view for explaining the positional relationship of each member of the image display device with a projector function of the present invention, and FIG. 6 is a transmission type of the image display device with a projector function of the present invention. FIG. 7 is a diagram showing the angle and positional relationship of the optical path changing mirror and the switching mirror when image light is reflected on the back side of the screen, and FIG. 7 is a front view of the external display unit 50 of the image display device with a projector function of the present invention. It is a figure which shows the angle and positional relationship of an optical path change mirror and a switching mirror in the case of reflecting the image light on the side.
In addition, the dashed-dotted line in FIGS. 5-7 shall show an optical axis.

  As shown in FIG. 5, the angle of view is θ, the distance on the optical axis from the liquid crystal panel 12 to the optical path changing mirror 13 is L1, the distance on the optical axis from the optical path changing mirror 13 to the lens unit 14 is L2, and the lens unit The distance on the optical axis from 14 to the switching mirror 30 is L3, the distance on the optical axis from the switching mirror 30 to the external display unit 50 is L4, the width of the liquid crystal panel 12 is W1, the transmissive screen 7, or the external display When the width of the portion 50 is Ws and the focal length of the lens portion 14 is f, the following formula 1 is established. Here, the display of video on the external display unit 50 will be described as a representative.

そして、切替ミラー３０の幅Ｗｍ１は、傾斜角度をφ１としたときに、数式２を満たすように規定される。

The width Wm1 of the switching mirror 30 is defined so as to satisfy Formula 2 when the tilt angle is φ1.

同様にして、光路変更ミラー１３の幅Ｗｍ２は、光路変更ミラー１３の傾斜角度をφ２としたときに、数式３を満たすように規定される。

Similarly, the width Wm2 of the optical path changing mirror 13 is defined so as to satisfy Formula 3 when the inclination angle of the optical path changing mirror 13 is φ2.

  In addition, as shown in FIG. 6, the inclination angle and position of the switching mirror 30 and the optical path changing mirror 13 when the image light is reflected to the front side of the external display unit 50 are the inclinations of the optical path changing mirror 13 and the switching mirror 30. When the angle is φ, the horizontal distance on the optical axis between the optical path changing mirror 13 and the switching mirror 30 is b, and the vertical distance is h, it is defined to satisfy Expression 4.

  Further, as shown in FIG. 7, the tilt angle and position of the switching mirror 30 and the optical path changing mirror 13 when the image light is reflected on the back side of the transmissive screen 7 are set such that the tilt angle of the switching mirror 30 is φ2 and the optical path. When the tilt angle of the change mirror 13 is φ1, the horizontal distance on the optical axis of the switching mirror 30 and the optical path change mirror 13 is b, and the vertical distance is h, the formula 5 is defined to be satisfied.

  By adjusting the tilt angles of the switching mirror 30 and the optical path changing mirror 13 so as to satisfy Formula 5, it becomes possible for the image light to display a projected image on the external display unit 50 through the optical path shown in FIG. . Needless to say, the image light can display a projected image on the transmission screen 7 through the optical path shown in FIG.

Further, in the present embodiment, as shown in FIG. 1 or FIG. 4, the casing 16 includes an outer casing 17 and an inner casing 18 that is housed in the outer casing 17 so as to be put in and out. Has been.
The inner casing 18 is opened upward with the upper wall portion removed, and when in use, a part of the inner casing 18 is taken out of the outer casing 17 by, for example, pulling out a predetermined amount. Thereby, as shown in FIG. 1 or FIG. 3, the optical path changing mirror 13 and the lens unit 14 are exposed to the outside of the housing 16, and the lens unit 14 is positioned coaxially with the switching mirror 30. Image light can be sent to the switching mirror 30 as image light.
The amount of drawer of the inner casing 18 is determined in advance in several stages.

  In the present embodiment, the switching mirror 30 and the casing 16 can be folded so as to contact the video display device main body 1a as follows. This will be described below. In the drawings to be referred to, FIG. 8 is a diagram showing a state in which the switching mirror 30 and the housing 16 of the video display device with a projector function of the present invention are folded to the video display device main body 1a side.

The main body display unit 3 is rotated from the position indicated by the dotted line in FIG. 8 toward the main body unit 2 with the rotating unit 5 as a fulcrum, so that the main body display unit 3 comes into contact with the main body unit 2. 1a can be folded. Further, the slide mirror 40b of the support member 40 is contracted to the main body display unit 3 side, and the switching mirror 30 is rotated with the rotating unit 42 as a fulcrum, so that the switching mirror 30 is moved to the main body as shown in FIG. The switching mirror 30 can be overlapped and folded on the back side of the main body display unit 3 so as to be parallel to the display unit 3.
On the other hand, the main body display unit 3 is rotated in a direction away from the main body unit 2 with the rotating unit 5 as a fulcrum, and is expanded in an L shape, and the slide arm 40b of the support member 40 is separated from the rear surface of the main body display unit 3. The switching mirror 30 is unfolded by extending in the direction of rotation and rotating the switching mirror 30 with the rotating portion 42 as a fulcrum.

As shown in FIG. 8, for example, when the housing 16 is rotated about 90 degrees from the position indicated by the dotted line toward the main body portion 2 with the rotating portion 21 as a fulcrum, the housing 16 stands substantially vertically. At this time, the rear wall portion of the housing 16 is the upper surface, the front wall portion of the housing 16 is the lower surface, and the rear wall portion of the housing 16 is substantially flush with the rear surface side of the folded switching mirror 30. become. In this state, the support member 20 is contracted, and the housing 16 is moved in the horizontal direction to a position where it contacts the back side of the main body 2 side. Thus, the housing | casing 16 can be folded in the video display apparatus main body 1a side.
On the other hand, the supporting member 20 is extended, and the casing 16 is expanded by rotating the casing 16 by 90 degrees in the direction away from the main body 2 with the rotating portion 21 as a fulcrum.

  The projection of the image on the display means by the projector function-equipped video display system including the projector function-equipped video display device 1 and the external display unit 50 thus configured will be described with reference to FIG. 1 or FIG. 3 as appropriate.

The projector-function-equipped video display device 1 is positioned in advance so that the transmissive screen 7 and the external display unit 50 are opposed to each other with the switching mirror 30 interposed therebetween.
Further, according to the display means, the tilt angle of the switching mirror 30 is adjusted in advance and positioned.

Based on an input signal input by the user from the keyboard 4, a control means (not shown) transmits a video signal to the liquid crystal panel 12 to display the original video on the liquid crystal panel 12.
At this time, the control means (not shown) displays the original image with the mirror image inverted according to the display means. In other words, in the present embodiment, since the video display device 1 with the projector function is arranged so that the main body display unit 3 and the external display unit 50 are opposed to each other with the switching mirror 30 interposed therebetween, either one of the displays is displayed. For the purpose of displaying on the means (for example, the main body display unit 3), when the original image displayed on the liquid crystal panel 12 described later is reflected as it is on the other display unit (in this case, the external display unit 50), the other display unit ( In this case, the original image is inverted and displayed on the external display unit 50). In order to prevent the image from being inverted and displayed in this way, when the image light is reflected toward the other display unit with respect to the one display unit, the original image is mirrored in advance on the liquid crystal panel 12. Invert and display.

Then, a control unit (not shown) transmits a signal to the light source unit 11 to cause the light source unit 11 to emit light, and emits, for example, white light to the liquid crystal panel 12. The white light is incident on the liquid crystal panel 12 from the front side and is transmitted to the back side, whereby the original image displayed on the liquid crystal panel 12 is converted into visible image light. The image light transmitted through the liquid crystal panel 12 is incident on the front optical path changing mirror 13.
The optical path changing mirror 13 reflects the incident image light, changes the optical path in the direction of the lens unit 14, and emits the light toward the lens unit 14. The image light incident on the lens unit 14 is transmitted through the lens unit 14 to be enlarged, and is emitted toward the switching mirror 30.
The switching mirror 30 reflects the incident video light on the back side of the transmissive screen 7 or on the front side of the external display unit 50.

As shown in FIG. 3, when image light is incident on the back side of the transmissive screen 7, the image light is transmitted to the front side of the transmissive screen 7 as it is, and a projected image is displayed on the front side of the transmissive screen 7. .
Thereby, the user can confirm the projection image | video displayed on the transmissive | pervious screen 7 at hand, operating the video display apparatus main body 1a.
As shown in FIG. 1, when the image light is incident on the front side of the external display unit 50, the incident image light is displayed as a projected image on the front side of the external display unit 50. As a result, a large number of people can check the video simultaneously.

As described above, according to the video display device with a projector function 1 according to the present embodiment, the switching mirror 30 rotates and switches the reflection direction of the video light incident from the optical unit 10 by a predetermined angle, thereby switching the main body. The projected image can be displayed on the display unit 3, or the projected image can be displayed on the external display unit 50 installed outside in advance.
Therefore, the configuration of the video display device with a projector function 1 is simplified, the video display device with a projector function 1 can be reduced in size and weight, and the video display device with a projector function 1 can be easily handled and carried.

As described above, the present invention is not limited to the above-described embodiment, and can be implemented in various forms.
For example, in the present embodiment, the casing 16 is formed of the outer casing 17 and the inner casing 18, but is not limited thereto. That is, the casing 16 may be any one that does not interfere with the optical path from the lens unit 14 to the switching mirror 30, and the casing 16 is made of a transparent material as a single casing having substantially the same dimensions as the outer casing 17. It may be formed. In this case, the lens unit 14 may be positioned by expanding and contracting the support member 20 in several stages.
Further, the casing 16 is formed by a single casing having substantially the same dimensions as the outer casing 17, and the lens unit 14 is embedded in the upper surface of the casing 16, and image light is transmitted from the lens unit 14 to the switching mirror 30. It may be incident. In this case as well, the lens unit 14 may be positioned by expanding and contracting the support member 20 in several stages.

The switching mirror 30 may be detachably connected to the main body display unit 3.
Further, the support member 40 may be detachably connected at one end to the side surface of the main body display unit 3 via the rotation unit 42, and the other end may be switched via the rotation unit 41. The mirror 30 may be detachably connected to the side surface.

It is a whole block diagram of a video display with a projector function of the present invention, and is a figure showing signs that a change mirror reflects video light to the front side of an external display. It is the perspective view which looked at the image display apparatus main body of the image display apparatus with a projector function of this invention from back. It is a whole block diagram of the video display apparatus with a projector function of this invention, Comprising: It is a figure which shows a mode that a switching mirror reflects the light for an image | video on the back side of a main body display part. It is the elements on larger scale of the state which looked at the optical unit of the image display apparatus with a projector function of this embodiment from the upper surface. It is explanatory drawing for demonstrating the positional relationship of each member of the video display apparatus with a projector function of this invention. It is a figure which shows the angle and positional relationship of an optical path change mirror and a switching mirror in the case of reflecting the image | video light on the back side of the main body display part of the video display apparatus with a projector function of this invention. It is a figure which shows the angle and positional relationship of an optical path change mirror and a switching mirror in the case of reflecting the image | video light on the front side of the external display part of the image display apparatus with a projector function of this invention. It is a figure which shows the state by which the switching mirror and housing | casing of the video display apparatus with a projector function of this invention were folded by the video display apparatus main body side.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Video display apparatus 1a Video display apparatus main body 2 Main body part 3 Main body display part 5 Rotating part 7 Transmission type screen 10 Optical unit 11 Light source part 12 Liquid crystal panel 13 Optical path change mirror 14 Lens part 15 Cooling fan 16 Housing | casing 20 Support member 21 Rotating unit 30 Switching mirror 40 Support members 41, 42 Rotating unit 50 External display unit

Claims (4)

A projector function-equipped video display device having a projector function of projecting light for video on a display means and displaying it as a projected video,
A main body having a control means, a main body display having a pivot screen pivotally mounted on the main body and transmitting the image light and displaying a projected image, and a rear side of the main body The optical unit that outputs the video signal transmitted from the main unit as the video light and the video light output from the optical unit is switched to the main body display unit or the external display unit installed outside and reflected. And a support member that rotatably supports the switching mirror by separating the switching mirror from the back side of the main body display unit,
The optical unit includes a light source unit, a liquid crystal panel that transmits light from the light source unit to convert the video signal into video light, and reflects the video light transmitted through the liquid crystal panel to change an optical path. An optical path changing mirror, and a lens unit that enlarges the image light reflected by the optical path changing mirror and sends it to the switching mirror,
An image display device with a projector function, comprising:   The support member includes a support arm and a slide arm that is slidably provided on the support arm, and one end of the support arm is attached to a side surface of the main body display unit via a rotation unit. 2. The video display device with a projector function according to claim 1, wherein the other end portion of the slide arm is attached to a side surface portion of the switching mirror via a rotating portion.   The video display device with a projector function according to claim 1, wherein the main body is a main body of a notebook personal computer. The video display device with a projector function according to any one of claims 1 to 3, and the external display that is disposed separately from the video display device with a projector function and displays the video projected by the switching mirror. And
A video display system with a projector function, characterized by comprising:

Images