JP2010098567A - Head mount full-face type image display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a head mount full-face type image display device capable of imparting a sense of distance to an image, thereby appreciating the image rich in presence. <P>SOLUTION: The head mount full-face type image display device for image display comprises: a display image generating means; and an optical system transfer means for transferring a display image to display the image on a display area 60. The display area 60 includes a real display region 61 and a framing region 62 surrounding the real display region. In the real display region 61, the display image generated by the display image generating means is displayed. The framing region 62 is constituted of an outline of a large polygon similar to the real display region 61 so as to display a plurality of frames 63a, 63b mutually different in size, formed to dispose corresponding vertices P of the frames 63a, 63b and correcting vertices P of the real display region in straight lines and to gather all such straight lines at one point inside the real display region 61. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a head-face-mounted image display device.

  2. Description of the Related Art In recent years, eyeglass-type image display devices have been proposed that visually recognize an image displayed on a display such as a liquid crystal panel (LCD) as an enlarged virtual image via an optical system having an eyepiece lens, a half mirror, and the like. This display device is called a head-mounted display system (HMD), for example, because it visually recognizes an eyeglass-type image display unit mounted on the head or face.

  Many such HMDs are known in which an image display unit is configured by a liquid crystal device (see, for example, Patent Document 1). That is, an image is generally generated by a liquid crystal device based on image data to be displayed, and this is transmitted and enlarged by an optical system, so that the generated image is displayed so as to be visible on a glasses-type display system. .

By the way, as an application of such an HMD, movies and games are mainly used so far. Especially for movies, even if there is no image display device with a large screen, it is expected that a realistic appreciation equivalent to viewing on a large screen such as 40 inches or 50 inches can be realized.
Japanese Patent Laid-Open No. 7-72446

  However, the conventional general HMD has a black display around the projected image (virtual image), that is, a dark field of view, and the image itself looks planar, so the position and size of the person who created the image It may be recognized differently from the intention. As a result, a sense of reality equivalent to that seen on a large screen cannot be obtained.

  The present invention has been made in order to solve the above-described problems, and the object of the present invention is to provide a head-face-mounted type that gives a sense of distance to an image, thereby enabling appreciation of a realistic image. An object is to provide an image display device.

The head-face-mounted image display device of the present invention is a head-face-mounted image display device that is mounted on the head or face to display an image.
Display image generating means for generating a display image;
An optical system transmission unit that transmits the display image generated by the display image generation unit and displays the display image in a display area;
The display area has a polygonal real display area and a frame-shaped frame area surrounding the real display area,
The actual display area is configured to display a display image generated by the display image generation means,
The frame area is a plurality of frames that are similar to the polygon formed by the actual display area and have polygonal outlines larger than the polygon and have different sizes, and vertices corresponding to the frames. A configuration in which a plurality of frames formed so that corresponding vertices in a polygon of the actual display area are arranged in a straight line and all the straight lines made up of these vertices are gathered at one point in the actual display area is displayed. It is characterized by being.

  According to the head-face-mounted image display device, a plurality of frames are displayed in the frame area around the image displayed in the actual display area. Is created. Accordingly, a sense of distance is added to the image, and this makes it possible to enjoy viewing an image full of realism.

In the head-face-mounted image display device, the frame displayed in the frame area can be a display image generated by a frame generation unit provided in the display image generation unit.
It can also be a display image generated by a frame generation unit provided in the optical system transmission means.
Further, when the display image generating means is composed of a display device having a display window corresponding to the actual display area and a frame corresponding to the frame area and surrounding the display window, the frame area The frame displayed in can be a display image generated by a frame generation unit provided in the frame.
Thus, since the frame generation part which produces | generates a frame can be formed in several places, the head-face-mounted image display apparatus of this invention has a high design freedom.

Further, in the head-face-mounted image display device, the frame may be a distance between the corresponding vertices between the frame positioned closest to the inside of the frame or a case where there is no other frame inside. The distance between the vertex in the polygonal outline formed by the actual display area and the corresponding vertex is displayed so as to become longer as it goes outside the actual display area. preferable.
In this way, the sense of distance of the image created by the frame becomes more effective, and the sense of reality is further enhanced.

In the head-face-mounted image display device, it is preferable that the actual display area is rectangular.
This makes you feel as if you are actually watching in a movie theater, especially when watching movies.

In the head-face-mounted image display device, it is preferable that one point where all of the straight lines are gathered in the actual display area is located on a center line in the left-right direction of the actual display area. The center point of the actual display area is preferable.
In this way, a higher sense of realism can be obtained by aligning the viewpoint with the center point on the center line of the actual display area.

Hereinafter, the head-face-mounted image display device of the present invention will be described in detail.
FIG. 1 is a diagram showing an embodiment of a head-face-mounted image display apparatus according to the present invention. Reference numeral 1 in FIG. 1 denotes a head-face-mounted image display apparatus (hereinafter referred to as HMD). The HMD is of a spectacle type, and includes an HMD main body 2 corresponding to a lens portion of the spectacles, and a pair of temples 3 and 3 extending inward from both ends of the HMD main body 2.

  The HMD main body 2 is worn like goggles in front of the user's eyes, and has an image display unit 4 corresponding to a lens portion. Optical system transmission means 5 is disposed inside these image display portions 4. Further, on the upper side and the lower side of the image display unit 4 and the optical system transmission unit 5, light shielding hoods 6 are provided. Accordingly, the upper and lower sides of the image display unit 4 and the optical system transmission unit 5 are covered with the light shielding hoods 6 and 6.

  The image display unit 4 contains display image generation means. The display image generating means is formed by a liquid crystal display device in this embodiment. The liquid crystal display device includes a transmissive color liquid crystal device 10 as shown in FIGS. As shown in FIG. 2B, the color liquid crystal device 10 includes a liquid crystal panel 20, a backlight unit (illuminating means) 30 that irradiates the liquid crystal panel 20 with illumination light, and a control means 40. Yes.

  The liquid crystal panel 20 includes an element substrate 11, a counter substrate 12 disposed to face the element substrate 11, and a liquid crystal layer 13 disposed between the element substrate 11 and the counter substrate 12. In the liquid crystal panel 20, the element substrate 11 and the counter substrate 12 are bonded together with a sealing material 14, and the liquid crystal layer 13 is sealed between the element substrate 11 and the counter substrate 12 by the sealing material 14. Yes. Here, an area surrounded by the sealing material 14 in the liquid crystal panel 2 is an image display area 15 shown in FIG. A large number of pixels (not shown) arranged in a matrix are arranged in the image display area 15, and a desired image can be displayed by the large number of pixels.

  As shown in FIG. 2B, the element substrate 11 is formed of a substantially rectangular glass substrate in plan view, and various metal films, insulating films, semiconductor layers, impurity layers, etc. are formed on the glass substrate. It is. The element substrate 11 includes a pixel portion including a pixel electrode, a thin film transistor (TFT), a storage capacitor, and the like formed on a glass substrate using a predetermined technique such as a photolithography technique or an inkjet method, and a pixel And a wiring portion for supplying an electrical signal or the like. Further, an alignment film for controlling the alignment of liquid crystal molecules constituting the liquid crystal layer 13 is provided on the inner surface of the element substrate 11, and a polarizing plate 17 is disposed on the outer surface of the element substrate 11.

  Similar to the element substrate 11, the counter substrate 12 is made of a glass substrate having a substantially rectangular shape in plan view, and a black matrix, a color filter layer, a protective film, an electrode, and the like are formed on the glass substrate. An alignment film is formed on the inner surface of the counter substrate 12, and a polarizing plate 18 is disposed on the outer surface thereof.

  The backlight unit 30 is disposed on the outer surface side of the element substrate 11. As shown in FIGS. 2B and 3, the backlight unit 30 includes a light guide plate 21, a light source 22 that emits illumination light toward the light guide plate 21, and a reflection of the illumination light toward the light guide plate 21. And a reflecting plate 24 to be configured. As the light source 22, an LED (light emitting diode) is preferably used, and a plurality of LEDs (light sources 22) are arranged as shown in FIG. 3, thereby enabling display in the image display area 15. .

  As shown in FIG. 2B, the control means 40 is configured to control the supply of image signals and scanning signals to the image display area 15 in the liquid crystal panel 20 and the driving of the light source 22. Further, a memory device 50 is connected to the control means 40, and an external connection device 55 for connecting to an external device (not shown) is further connected.

The memory device 50 transmits prestored data to the control means 40, and the control means 40 supplies image signals and scanning signals to the image display area 15 and drives the light source 22 based on the transmitted data. It comes to perform control.
The external connection device 55 is connected to, for example, a DVD device, and receives data from the DVD device and transmits it to the control means 40. As a result, the control means 40 can display an image displayed on the DVD device in the image display area 15 of the liquid crystal panel 20.

  Based on such a configuration, the image display units 4 and 4 are displayed on the basis of the data stored in the memory device 50 or the data input from the external connection device 55 by the display image generating means accommodated therein. Is generated and displayed in the image display area 15.

  The memory device 50 is provided with a voice data storage unit (not shown), and the external connection device 55 is provided with a voice data input unit (not shown). An audio data output unit (not shown) is connected to the audio data storage unit and the audio data input unit. The audio data output unit is composed of an external device such as a headphone or an earphone, or a speaker (not shown) incorporated in the temple 3, whereby the person wearing the HMD 1 is displayed in the image display area 15. You can listen to audio and music at the same time as viewing images.

  The optical system transmission unit 5 transmits the image (display image) generated by the display image generation unit and displayed in the image display area 15 and displays it in the display area. That is, as shown schematically in FIG. 4, the optical system transmission unit 5 includes various lenses inside a rectangular cylindrical holder 52 disposed on the display surface side of the color liquid crystal device 10. In this configuration, an image (display image) displayed in the image display area 15 is transmitted to the image formation surface A and imaged here. That is, the imaging plane A is the display area 60 in the present invention, and the person wearing the HMD 1 can recognize the image (display image) displayed in the image display area 15 by looking at the display area 60. It is like that.

  In the present invention, the display area 60 is composed of a horizontally long actual display area 61 and a frame-shaped frame area 62 surrounding the actual display area 61 as shown in FIGS. . The actual display area 61 is an area for displaying a target image by the color liquid crystal device 10. On the other hand, the frame area 62 is basically a black display, that is, a night vision area as shown in FIG. 5A, and a plurality of frames are shown in the night vision field as shown in FIG. In this embodiment, two frames 63a and 64b are displayed.

  Note that FIG. 5A in which no frame is displayed in the frame area 62 shows a state where the frame is viewed in the display area in the conventional HMD. As shown in FIG. 5A, when the frame area 62 is simply a night vision field, the image displayed in the actual display area 61 looks planar. As a result, there is little distance between them, and it is impossible to obtain a sense of reality equivalent to that seen on a large screen.

On the other hand, in the present invention, as shown in FIG. 5B, two (plural) frames 63a and 63b are displayed, so that a sense of distance is created around the actual display area 61 by these frames 63a and 63b. The
That is, the frames 63a and 63b are similar to the rectangle which is the shape formed by the actual display area 61, are formed by rectangular outlines larger than the rectangle, and are formed in different sizes. The frames 63a and 63b are arranged so that vertices corresponding to each other, for example, the vertex P1 of the frame 63a and the vertex P2 of the frame 63b, and the vertex P3 in the outline 61a of the actual display area 61 are aligned. Has been. The straight lines formed by these vertices P, that is, all the straight lines passing through the vertices P corresponding to each other, are formed so as to gather at one point in the actual display area 61.

  In the example shown in FIG. 5B, the straight lines L1, L2, L3, and L4 that pass through the corresponding apexes P are straight lines that are diagonal lines of the rectangle formed by the actual display area 61. Therefore, one point where all of the straight lines L 1, L 2, L 3, and L 4 are gathered in the actual display area 61 is a center point O of the actual display area 61. Here, in the present invention, not only the frames 63a and 63b are displayed in the frame area 62, but in addition to the frames 63a and 63b, a part of the straight lines L1, L2, L3, and L4, that is, the outermost side. Line segments L1a, L2a, L3a, and L4a that connect the apex P of the frame 63b that is positioned and the apex P of the outline 61a of the actual display area 61 may also be displayed together. By displaying the line segments L1a, L2a, L3a, and L4a in this way, it is possible to create a sense of distance more effectively around the actual display area 61.

  Such frames 63a and 63b and line segments L1a, L2a, L3a, and L4a are display images generated by the frame generation unit. The frame generation section can be formed at a plurality of locations in the present invention, and therefore the HMD (head-face-mounted image display apparatus) 1 of the present invention has a high degree of design freedom.

  The frame generation unit is provided in the display image generation unit in the first example. That is, the frames 63a, 63b, etc. are generated by the frame generation unit provided in the control unit 40 of the color liquid crystal device 10 shown in FIG. Can do. FIG. 6A shows a state in which the color liquid crystal device 10 displays frames 63a and 63b as display images.

  As shown in FIG. 6A, in the first example, the entire image display area 15 of the color liquid crystal device 10 is made to correspond to the display area 60 shown in FIGS. The central part corresponds to the actual display area 61 and the outer peripheral part corresponds to the frame area 62. Therefore, the frame generating unit constituted by the control means 40 can display the frames 63a, 63b, etc. in the outer frame area 62 separately from the image display such as a movie. In the actual display by the HMD 1, the frame portion 10a of the color liquid crystal device 10 shown in FIG. 6A is masked, so that the frame portion 10a becomes a dark field as shown in FIG. 6B.

  In the second example, the frame generation unit is provided in a frame portion of the display image generation unit. That is, the outside of the image display area 15 in the color liquid crystal device 10 constituting the display image generating means, that is, the frame portion 10a thereof is formed by the frame 35 having the configuration shown in FIG. 7, and this frame 35 is used as a frame generating unit. Can do. The frame 35 is configured to correspond to the frame region 62 in the display area 60 shown in FIGS. 5 (a) and 5 (b). The entire frame 35 is formed to be light-shielding, and only at positions corresponding to the frames 63a and 63b. In addition, a translucent portion 37 such as a slit is formed. For example, the frame 35 is formed of a transparent plate material such as glass or resin, and a black mask is provided on the entire surface excluding the light transmitting portion 37.

  In the color liquid crystal device 10 provided with such a frame 35, as shown in FIG. 3, a backlight unit 30 including a light guide plate 21, a light source 22, and a reflection plate 24 is provided on the back side thereof. The light from 22 is transmitted through the light transmitting portion 37, so that a frame as a display image is generated. Then, the generated frame is transmitted to the imaging plane A by the optical system transmission unit 5 and is imaged here, whereby the frames 63 a and 63 b can be displayed in the frame area 62 in the display area 60. The frame generation unit may also display the line segments L1a, L2a, L3a, and L4a together with the frames 63a and 63b.

  The frame generation unit is provided in the optical system transmission unit 5 in the third example. That is, as shown in FIG. 8A, the inner peripheral surface of the holding body 52 corresponds to the frame area 62 of the display area 60 formed on the imaging plane A at the position where the imaging plane A is formed. A frame member 38 having a rectangular frame shape is formed at a location. As shown in FIG. 8B, the frame member 38 is formed with a translucent portion 39 for generating the frames 63a and 63b. Similarly to the frame 35, the frame member 38 can be formed by providing a black matrix in a portion excluding the light transmitting portion 39 of a transparent plate material such as glass.

  When such a frame generation unit is provided in the optical transmission means 5, an image to be displayed on the color liquid crystal device 10 is configured so that light enters the frame generation unit, that is, the frame member 38. . Alternatively, a light source (not shown) such as an LED may be directly provided on the frame member 38, and the frames 63a and 63b may be displayed separately from the image displayed on the color liquid crystal device 10.

The frame generation unit may also display the line segments L1a, L2a, L3a, and L4a together with the frames 63a and 63b.
As described above, by providing the frame generation unit configured as shown in the first example, the second example, and the third example, the HMD main body 2 can display the real display area 61 as shown in FIG. The frames 63a and 63b can be displayed in the outer frame area 62.

  In order to watch, for example, a movie using the HMD 1 of the present embodiment, first, the HMD body 2 is mounted on the face like glasses with the temples 3 and 3 over the ears. Then, the color liquid crystal device 1 (display image generating means) of the HMD main body 2 is obtained by calling movie data recorded in advance in the memory device 50 or by calling and outputting movie data of, for example, a DVD device via the external connection device 55. To generate a display image. Then, this display image is visually recognized by transmitting it by the optical system transmitting means 5 and displaying it in the display area 60 of the image plane A.

At this time, since a plurality of frames 63a and 63b are displayed in the frame area 62 around the movie image displayed in the actual display area 61, the distance around the actual display area 61 by these frames 63a and 63b. A feeling can be created.
Therefore, according to the HMD 1 of the present invention, it is possible to give a sense of distance to an image, and thereby, an image (image) overflowing with a sense of reality equivalent to that seen on a large screen such as 40 inches or 50 inches can be viewed. can do.
In addition, since the frame generation unit that generates a frame can be formed at a plurality of locations as shown in the first example, the second example, and the third example, for example, the degree of freedom in design is increased. High and can therefore be easily applied to the required type.

  The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the gist of the present invention. For example, in the above embodiment, the display image generating means is configured by a liquid crystal display device (color liquid crystal device 10). However, the present invention is not limited to this, and for example, a display image is generated by an organic electroluminescence device (organic EL device). Means can also be configured. At that time, for example, as shown in the second example, when the frame generating unit is provided in the frame portion of the display image generating means, as shown in FIG. Further, it is possible to display the frames 63a and 63b, which are good for guiding light by a light guide plate (not shown) and emitting light from the light transmitting portion 37 shown in FIG.

  In the above-described embodiment, an example in which two frames are formed has been described. However, as long as there are a plurality of frames, it is needless to say that three or more frames may be used. Furthermore, in the above embodiment, the distance between the frame and the frame positioned closest to the inside of the frame, or the distance between the frame and the outline of the actual display area when there is no other frame on the inside is shown in FIG. As shown in FIG. 10, it may be displayed so that it becomes longer as it goes outside the real display area 61. By displaying the frame in this way, the sense of distance of the image created by the frame becomes more effective, and the sense of reality is further enhanced.

  In the embodiment, straight lines L1, L2, L3, and L4 passing through the corresponding vertices P of the frames 63a and 63b are the center point O of the actual display area 61 as shown in FIG. The frames 63a and 63b are formed so as to gather, but as shown in FIG. 10, for example, a straight line L1 formed by the vertex P corresponding to each other of the frames 63c, 63d, and 63e and the vertex P of the outline 61a of the actual display area, L2, L3, and L4 may be shifted upward from the center point of the actual display area 61, or may be shifted downward.

  Moreover, the head-face-mounted image display device (HMD) of the present invention can be used to view various images and videos such as games, in addition to watching movies.

1 is a perspective view showing an embodiment of a head-face-mounted image display device of the present invention. (A) is a front view of a liquid crystal display device, (b) is a sectional side view of a liquid crystal display device. It is a figure which shows a backlight unit. It is a side sectional view showing an optical system transmission means typically. (A) (b) is a figure for demonstrating a display area. (A) (b) is explanatory drawing in the case of displaying a frame with a liquid crystal display device. It is explanatory drawing at the time of using the frame of a liquid crystal device as a flame | frame production | generation part. (A) (b) is explanatory drawing at the time of providing a frame production | generation part in an optical system transmission means. It is explanatory drawing at the time of providing a frame production | generation part in a frame part. It is a figure which shows the example of a display of a frame.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Head-and-face image display apparatus (HMD), 2 ... HMD main body, 4 ... Image display part, 5 ... Optical system transmission means, 10 ... Color liquid crystal display device (display image generation means), 22 ... Light source, 35 ... frame, 37 ... translucent part, 38 ... frame area, 39 ... translucent part, 60 ... display area, 61 ... real display area, 62 ... frame area, 63a, 63b, 63c, 63d, 63e ... frame, A ... Imaging plane, P, P1, P2, P3 ... vertex, L1, L2, L3, L4 ... straight line

Claims (8)

A head-face-mounted image display device that is mounted on the head or face to display an image,
Display image generating means for generating a display image;
An optical system transmission unit that transmits the display image generated by the display image generation unit and displays the display image in a display area;
The display area has a polygonal real display area and a frame-shaped frame area surrounding the real display area,
The actual display area is configured to display a display image generated by the display image generation means,
The frame area is a plurality of frames having polygonal outlines similar to the polygon formed by the actual display area and larger than the polygon, and vertices corresponding to each other of the frames. A configuration in which a plurality of frames formed so that corresponding vertices in the polygon of the actual display area are arranged in a straight line and all the straight lines made of these vertices are gathered at one point in the actual display area is displayed. A head-face-mounted image display device characterized by that.   The head-face-mounted image display device according to claim 1, wherein the frame displayed in the frame area is a display image generated by a frame generation unit provided in the display image generation unit.   The head-face-mounted image display device according to claim 1, wherein the frame displayed in the frame area is a display image generated by a frame generation unit provided in the optical system transmission unit.   The display image generation unit includes a display device having a display window corresponding to the actual display area and a frame corresponding to the frame area and surrounding the display window, and is displayed in the frame area. The head-face-mounted image display device according to claim 1, wherein the frame is a display image generated by a frame generation unit provided in the frame.   The frame is a distance between the vertices corresponding to each other between a frame positioned closest to the inside of the frame, or a vertex in a polygonal outline formed by the real display area when there is no other frame inside. The distance between the corresponding vertexes is displayed so as to become longer as the distance to the outer side with respect to the actual display area is increased. The head-face-mounted image display device described.   The head-face-mounted image display device according to claim 1, wherein the actual display area is rectangular.   The head-face-mounted image display device according to claim 6, wherein one point where all of the straight lines are gathered in the real display area is located on a center line in the left-right direction of the real display area.   8. The head-face-mounted image display device according to claim 7, wherein one point where all of the straight lines gather in the real display area is a center point of the real display area.

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