JP2019062250A - Housing for head mount display and shield type head mount display - Google Patents

Abstract

To provide a shield type head mount display which enables ventilation in a housing where heat tends to accumulate.SOLUTION: A housing for a head mount display is a housing used in a shield type head mount display, which is used while placed in contact with a face of a user so as to cover eyes of the user, and includes: a housing body having at least one opening; and a ventilation sheet which covers the opening and has light blocking effect. The above object is achieved by the housing for the head mount display and the head mount display using the housing.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a housing for a head mounted display and a shielded head mounted display.

  BACKGROUND Conventionally, there has been known a shielded head mounted display that is used by being applied to a face so as to cover the user's eyes.

  The shield-type head mount display is an eyepiece lens disposed in a box-shaped housing, a display (image display unit) for displaying an image or an image, a display control unit including a processor for controlling the display, and an eye Is mounted on the head of the user like goggles and used against the face so as to make the image displayed on the image display unit visible from the eyepiece. The user visually recognizes the reproduced image displayed on the image display unit through the eyepiece. The shielded head mounted display can make the user feel virtual reality by interrupting the view of the right eye and the left eye from the outside and immersing the user in watching the reproduced image.

  In the case of the shield type head mount display, in the case where the image display unit is disposed and the space formed between the head mount display and the face in order to present a clear image to the user. It is necessary to block the view from the outside so that outside light does not enter. In the housing, a display control unit for controlling display of an image is housed together with the image display unit. The display control unit generates heat during operation in order to process image data transmitted from the reproduction apparatus at high speed. In the case where the case has a sealed structure, the heat generated when the image display unit or the display control unit operates heats the inside of the case, causing the user to feel the heat and giving discomfort or discomfort due to sweating from the face. Was a problem.

  The following techniques are known as techniques for improving the thermal discomfort at the time of mounting the shield type head mounted display. For example, Patent Document 1 listed below is a shield-type head mounted display that is used by being mounted on the head of a user, and is a case that forms an internal space that covers the field of view of the user when the head mounted display is mounted. And a display unit which is accommodated in the housing and presents a video to the user, and a forehead support arranged between the user's forehead and the housing when the head mounted display is mounted, the forehead support Has a gas conduction path connecting the internal space of the housing and the outside of the housing, and the conduction path is configured to restrict light entering from the opening on the external side from entering the display unit Discloses a head mounted display. Moreover, the following Patent Document 2 is a ventilating device used for a head mounted display in which a main body portion provided with an image display portion is mounted on the head of a user, and is a fan capable of taking in air and sending out taken in air And an air flow guiding unit having one end connected to the air blowing unit and guiding the air flow formed by the air blowing unit between the one end and the other end, and the air flow guiding unit has the main body and the head at the other end And a ventilating device which is opened between the two.

Unexamined-Japanese-Patent No. 2017-17565 Unexamined-Japanese-Patent No. 2017-22657

  A display control unit for controlling an image display unit or an image display unit, which is housed in a housing, is usually disposed at the deepest portion in the housing and sealed. Therefore, the heat generated by the image display unit and the display control unit is transmitted to the inside of the housing, and the heat is transmitted to the user's face, causing the user to feel discomfort and also to adversely affect the operation of the device. Be done. According to the technique described in Patent Document 1 above, since the conduction path is disposed in the forehead placement portion disposed between the user's forehead and the housing, the user's forehead and housing It is possible to ventilate the space between them. Further, according to the technique described in Patent Document 2, the space between the forehead of the user and the casing is ventilated because the opening of the air flow guiding portion is provided between the main body and the head. I can do it. However, according to those techniques, the heat generated from an element such as an image display unit or a control unit, which is disposed inside the housing separated from the face, can not be released at a portion near them. .

  An object of the present invention is to provide a housing of a head mounted display which can ventilate the inside of a housing of a shielded head mounted display.

  One aspect of the present invention is a housing used for a shielded head-mounted display that is used by being applied to the face so as to cover the user's eyes, comprising a housing body having at least one opening, and an opening And an air-permeable sheet having a light-shielding property covering the above. According to such a configuration, the inside of the housing can be ventilated through the air-permeable sheet by providing the opening in the housing body and covering the opening with the air-permeable sheet having the light shielding property. Moreover, when the air-permeable sheet has a light shielding property, it is possible to suppress external light from entering the housing through the opening. Furthermore, since the opening can be provided at a desired position of the housing body, the inside of the housing can be provided by providing an opening in a portion close to the display control portion or an image display portion serving as a heat source housed in the housing. It is possible to make it easy to release the heat.

  The breathable sheet preferably includes a cloth, preferably a non-woven fabric, or a leather-like sheet containing non-woven fabric, from the viewpoint of easily adjusting the air permeability and the light shielding property, and also excellent in design.

  Moreover, it is preferable that the air-permeable sheet has a total visible light transmittance of 10% or less at a wavelength of 380 to 780 nm from the viewpoint that the penetration of external light into the housing can be sufficiently suppressed.

  In addition, the case main body is a box shape having a front surface and a side surface, has at least one opening on the side surface, and an air-permeable sheet is laminated so as to cover the side surface, the opening provided on the side surface Is preferable from the point of being excellent in designability, since it can be concealed so as not to be visible from the outside.

  Another aspect of the present invention is a shield-type head mounted display that is used by being applied to the face so as to cover the eyes of the user, and the housing for any of the above-mentioned head mounted displays, and a housing At least an image display unit for displaying an image housed in the body, and a fixing unit for fixing the head mount display housing to the head in a state of being placed on the face so as to cover the eyes of the user It is a shield type head mount display provided. In such a head mounted display, the ventilating device may be further provided in the housing to forcibly ventilate the inside of the housing through the opening.

  According to the present invention, it is possible to obtain a shielded head mounted display that can ventilate the inside of the housing.

FIG. 1 is a schematic view of a shield-type head mount display 10 of the present embodiment, (a) is a schematic perspective view, and (b) is a partially exploded schematic view. FIG. 2 is an explanatory view for explaining the structure of the housing of the head mounted display 10. FIG. 3 is a block diagram of a head mounted display system 100 in which the head mounted display 10 is connected to the playback device 20. As shown in FIG. FIG. 4 is an explanatory view showing the overall configuration of the head mounted display system 100 when the head mounted display 10 is attached to the user U and used. FIG. 5 is an explanatory view for explaining another example of the structure of the housing of the head mounted display. FIG. 6 is an explanatory view for explaining another example of the structure of the housing of the head mounted display. FIG. 7 is an explanatory view for explaining another example of the structure of the housing of the head mounted display. is there. FIG. 8 is an explanatory view for explaining an example in which a ventilation device is provided in a housing of a head mounted display.

  Hereinafter, an embodiment of a shield-type head mount display case and a head mount display using the same according to the present invention will be described with reference to the drawings.

  FIG. 1 is a schematic view of the shield-type head mount display 10 of the present embodiment, where (a) is a schematic perspective view and (b) is a view when the lens unit 2 is removed from the housing 1 of the head mount display 10. It is a partial decomposition schematic diagram explaining a situation. FIG. 2 is an explanatory view for explaining the structure of the housing 1 of the head mounted display 10. FIG. 3 is a block diagram of a head mounted display system 100 in which the head mounted display 10 is connected to the playback device 20. As shown in FIG. FIG. 4 is an explanatory view showing the overall configuration of the head mounted display system 100 when the head mounted display 10 is attached to the user U and used.

  In FIG. 1, 1 is a housing, 2 is a lens unit, 2a is an eyepiece for the right eye, 2b is an eyepiece for the left eye, 2c is a face member, 2d is a nosepiece, 2e and 2f are lens mounting recesses, 3 is Fixed belt 4a is a right-eye image display unit for presenting an image to the right eye of the user 4b is a left-eye image display unit for presenting an image to the left eye 5 is a display control unit for image display 6 Is an image signal input terminal. Hereinafter, the right-eye image display unit 4a and the left-eye image display unit 4b are collectively referred to as an image display unit 4.

  The face pad member 2c is formed of, for example, a porous elastic body such as urethane so that a portion in contact with the face when worn is in close contact. The lens unit 2 mounted on the housing 1 has the right-eye eyepiece lens 2a and the left-eye eyepiece lens 2b disposed in the lens mounting recesses 2e and 2f of the lens unit body 2j, and the face-contacting member 2c on the lens unit body 2j. It is formed by arranging. The fixing belt 3 also includes a belt 3a for fixing the head mounted display 10 to the head of the user U and a size adjuster 3b for adjusting the length.

  The right-eye eyepiece 2a and the left-eye eyepiece 2b are disposed to face the user's right and left eyes, respectively, when the head mounted display 10 is worn by the user. The right-eye eyepiece 2a and the left-eye eyepiece 2b are disposed to face the right-eye image display unit 4a and the left-eye image display unit 4b, respectively. In addition, each of the right-eye eyepiece 2a and the left-eye eyepiece 2b is a cup-shaped lens mounting recess 2e or 2f that protrudes toward the internal space of the housing 1 to limit the field of view of the right eye or the left eye. They are respectively disposed at the bottom and are arranged to limit the field of vision of the user's right or left eye when worn. By arranging each element in this manner, the user can visually recognize the image displayed on the right-eye image display unit 4a through the right-eye eyepiece 2a with the right eye, and the left-eye image display unit through the left-eye eyepiece 2b with the left eye Visualize the image displayed on 4b.

  The housing 1 has a light shielding main body 1a which is a light shielding molded body having openings v which are a plurality of slit-like holes and a ventilation having a light shielding property, for example, which is laminated on the housing main body 1a. And the sex sheet 1b. For example, as shown in FIG. 2, the housing 1 is manufactured by bonding the air-permeable sheet 1b to the housing body 1a having the opening v so as to cover the opening v.

  FIG. 3 is a block diagram of a head mounted display system 100 in which a reproduction device 20 for transmitting image data to the head mounted display 10 is connected. The head mounted display system 100 includes a head mounted display 10, a playback device 20, and a battery unit 15 for supplying power to the head mounted display 10.

  In the head mounted display 10, the right eye image display unit 4a, the left eye image display unit 4b, the display control unit 5, and the image signal input are provided in the housing 1 in which the opening v of the housing body 1a is covered with the breathable sheet 1b. Terminal 6 is accommodated. The right-eye image display unit 4a and the left-eye image display unit 4b are display elements such as a liquid crystal display and an organic EL display, and may be provided with a half mirror. Further, the display control unit 5 receives the image data transmitted from the reproduction device 20, and based on the image data, outputs the reproduced image to each of the right-eye image display unit 4a and the left-eye image display unit 4b. It is a processing device including a program to be executed, a processor and the like. The image signal input terminal 6 is a High-Definition Multimedia Interface (HDMI) (registered trademark) terminal or the like, and a transmission cable 7 for transmitting a signal having a corresponding terminal is connected. In addition, the head mounted display 10 is supplied with power from the battery unit 15 connected by the power supply cable 8.

  The reproduction apparatus 20 stores the image data to be transmitted to the head mounted display 10, stores the image data in the storage unit 21, reproduces the stored image data, and transmits a signal to the head mounted display 10. A reproduction control unit 22 to control and an image signal output terminal 23 such as an HDMI terminal to which a transmission cable 7 such as an HDMI cable is connected are provided. As the reproduction device 20, for example, a HDD recorder, a mobile device such as a smartphone, a personal computer or the like is used. The head mounted display 10 is connected to the reproduction device 20 by the transmission cable 7 and appropriately receives a signal transmitted by the reproduction device 20. The head mounted display 10 is connected by wire to the reproducing apparatus 20 by the transmission cable 7, but may be connected wirelessly instead of the wired connection.

  The reproduction data reproduced by the reproduction device 20 and transmitted by the transmission cable 7 is input to the display control unit 5 through the image signal input terminal 6 of the head mounted display 10. Specifically, the display control unit 5 converts the signal of the reproduction data transmitted from the reproduction device 20 into image information to be displayed on the right-eye image display unit 4a or the left-eye image display unit 4b. In addition, the display control unit 5 performs processing for giving parallax to the images displayed on the right-eye image display unit 4a and the left-eye image display unit 4b, thereby converting data so that the user sees as a 3D image. There is also. The display control unit 5 outputs the generated right-eye or left-eye image information to the right-eye image display unit 4a or the left-eye image display unit 4b. The right-eye image display unit 4a and the left-eye image display unit 4b display an image or a video based on the input image information. The user U wearing the head mounted display 10 visually recognizes the image displayed on the right-eye image display unit 4a through the right-eye eyepiece lens 2a, and displays the image displayed on the left-eye image display unit 4b through the left-eye eyepiece lens 2b. Visualize. The right-eye image display unit 4a and the left-eye image display unit 4b may be non-transmissive or transmissive. The right-eye image display unit 4a or the left-eye image display unit 4b is an integrated display as long as it displays an image corresponding to the right-eye eyepiece 2a or the left-eye eyepiece 2b, respectively. It is also good.

  As shown in FIG. 4, the head mounted display 10 is configured such that the user puts the face-contacting member 2 c of the lens unit 2 so that the right-eye or left-eye eyepiece 2 b can be seen by the user U's right or left eye. The head is brought into contact with the face of U, and the nose rest 2d is put on the nose, fixed to the head of the user U by the fixing belt 3 and mounted. The lens unit 2 shields the field of vision of both eyes of the user U from its surroundings, and forms a space between the face and the right-eye eyepiece 2a and the left-eye eyepiece 2b. In the shield type head mount display, in order to make it easy to visually recognize the image displayed on the image display unit 4, light shielding is performed so that light does not enter the internal space of the housing 1 and the space formed on the surface of the face. Form a space. The light shielding space is susceptible to heat since the air flow is blocked from the outside. As shown in FIG. 1, in the housing 1, an opening v is provided in the housing body 1 a, and the opening v is configured to be covered with a breathable sheet 1 b having a light shielding property. By using such a housing 1, ventilation can be performed while suppressing external light from entering the internal space of the housing 1 through the air-permeable sheet 1 b and the opening v. In the housing 1, as shown in FIG. 2, the air-permeable sheet 1b is laminated and bonded so as to cover the entire upper side surface of the housing body 1a where the opening v is formed, and the opening v has a light shielding property The design is not impaired even if the opening v is provided because it is covered with the air-permeable sheet 1 b having the above and hidden from the outside.

  In the head mounted display 10, as shown in FIG. 2, the opening v including a plurality of slit-like holes is provided on the upper side surface of the housing body 1a, but the shape of the opening v can be changed as appropriate. For example, as shown in FIG. 5, like the case 31 integrated so that the side surface of the frame-like case main body 31a which provided the opening v which consists of several large holes in the upper side may be covered with the breathable sheet 1b. 6A and 6B, the casing integrated with the air-permeable sheet 1b so as to cover the side surface of the case main body 41a provided with the openings v each having a plurality of slits in the upper side and the lower side. As shown in FIG. 7 such as the shape of the body 41, as shown in FIG. 7, the air-permeable sheet 1b is used to cover the side surface of the casing main body 51a provided with openings v each consisting of a plurality of slits in the left side It may be shaped like an integrated housing 51. When the openings are provided on the facing surfaces as in the case 41 and the case 51, air flow can be performed, and the ventilation efficiency is improved.

  As a material for molding the housing body, any material conventionally used for a housing of a head mounted display can be used without particular limitation. Specific examples thereof include resins such as polycarbonate resins, polyester resins, polyolefin resins, and polyamide resins.

  Moreover, as the air-permeable sheet having the light shielding property, a sheet material having both the air permeability and the light shielding property is used without particular limitation. Specific examples of such sheet materials include, for example, entangled nonwoven fabrics, paper non-woven fabrics, fabrics such as woven fabrics, woven fabrics, knitted fabrics, etc., artificial leather in which a polymer elastic material such as polyurethane is added to the voids of these fabrics, Leather-like materials such as synthetic leather are mentioned. Moreover, the sheet | seat which provided the air hole in the non-porous resin sheet may be sufficient.

Here, the light-shielding property means opacity to block transmission of visible light, and specifically, the total visible light transmittance of a wavelength of 380 to 780 nm is 10% or less, and further, 8% or less It is preferable that the content be 6% or less. The breathable sheet is a sheet having breathability. As the air permeability of the air-permeable sheet, it is sufficient that the air permeability is 5 to 40 cm ³ / (cm ² · second) and further 10 to 30 cm ³ / (cm ² · second) while maintaining the light shielding property It is preferable from the point which can ensure ventilation.

  Although the thickness of the air-permeable sheet is not particularly limited, it is preferably, for example, 100 to 3000 μm, further 150 to 1000 μm, and particularly 200 to 900 μm. When the breathable sheet is too thin, it is difficult to ensure sufficient light shielding properties, and when it is too thick, the breathability tends to decrease.

  Among the above-mentioned air-permeable sheets having a light-shielding property, leather-like materials such as an entangled nonwoven fabric or an artificial leather obtained by adding a polymer elastic body such as polyurethane to the entangled nonwoven fabric, particularly a leather-like material is excellent in designability At the same time, it is preferable from the viewpoint that high light shielding properties can be maintained by increasing the fiber density or coloring in a dark color while securing high air permeability. Hereinafter, as representative examples of the breathable sheet, a leather-like material including an entangled nonwoven fabric and an entangled nonwoven fabric will be described in detail.

  The thermoplastic resin which is a resin component for forming fibers is not particularly limited, and examples thereof include polyesters such as polyethylene terephthalate (PET), polyamides such as polyamide 6 and polyamide 66; polyolefins such as polypropylene and polyethylene. Further, the fineness of the fibers forming the entangled nonwoven fabric is not particularly limited as long as the light shielding property can be ensured, but the fineness is preferably 2 dtex or less, more preferably 0.001 to 1 dtex, particularly 0.01 to 0.6 dtex . If the fineness is too high, a dense non-woven fabric tends to be difficult to obtain.

  The fiber length of the fiber is not particularly limited, and even staples which are staples intentionally cut so that the fiber length becomes about 3 to 80 mm after spinning are cut to a suitable length of 80 mm or more It may be a filament or a continuous fiber which is not intentionally cut after spinning. Among these, continuous fibers are particularly preferable in that non-woven fabrics with high fiber density can be obtained. The fiber length of the continuous fiber may be several m, several hundreds m, several km or more, unless technically manufacturable and unavoidably cut in the manufacturing process. In addition, a part of the long fibers may be unavoidably cut in the manufacturing process to become short fibers due to needle punching at the time of entanglement or buffing of the surface.

  A leather-like material such as artificial leather can be obtained by providing a polymer elastic material such as polyurethane in the voids of the entangled nonwoven fabric. The type of polymeric elastomer is not particularly limited. Specific examples thereof include polyurethane, acrylic elastomer, polyurethane acrylic composite elastomer, polyvinyl chloride, synthetic rubber and the like. Among these, polyurethane is preferable from the viewpoint of excellent adhesion and mechanical properties. The content of the polymer elastic body is 5 to 50% by mass, further 12 to 40% by mass, particularly 8 to 30% with respect to the total amount with the ultrafine fibers, which inhibits air permeability It is preferable from the point which can maintain high light-shielding property, without.

  The leather-like material is preferably colored with a coloring agent in order to improve the light shielding property. There is no particular limitation on the method of incorporating the coloring agent into the leather-like material. For example, when melt spinning a fiber, blending a pigment into the fiber, dyeing a non-colored fiber with a dye, coloring a polymer elastic body with a pigment or a dye, printing the surface with an ink by inkjet printing May be Moreover, you may combine and color these. Among these, the method of coloring with a pigment is particularly preferable in terms of light shielding property and high fastness. Specific examples of the pigment include, for example, carbon black, organic pigments such as phthalocyanine type, anthraquinone type, quinacdrine type, dioxazine type, dioxazine type, perylene type, thioindigo type and azo type, titanium oxide, red iron oxide, chromium red, molybdenum red, Inorganic pigments such as lithium surge and iron oxide can be mentioned. The dye is appropriately selected from the viewpoint of fastness, but in the case of polyester, it is preferable to use a cationic dyeable polyester and to dye with a cationic dye from the viewpoint of excellent fastness.

  As a method of integrating the breathable sheet into the case body, there is a method of bonding and bonding the breathable sheet to the case body with an adhesive, or by injection molding the breathable sheet housed in the mold. The method of in-mold molding which integrates a breathable sheet | seat with the housing body which is an injection molded body shape | molded is mentioned.

  As mentioned above, although one Embodiment of the housing | casing for head mount displays of a shielding type and head mount display which concern on this invention was described, about a specific structure, it can change suitably in the range which does not deviate from the summary of this invention. it can.

  For example, as shown in FIG. 8, a ventilation device 16 such as a fan is disposed around the opening v1 in the housing 1, and the air in the housing 1 is exhausted from the opening v1 and the outside air is taken from the opening v2. By forming a flow of air flow, a configuration is adopted in which the air heated by the heat released from the image display unit 4 and the display control unit 5 disposed in the housing 1 is discharged to the outside to cool the inside of the housing You may

  Hereinafter, the present invention will be more specifically described by way of examples. The scope of the present invention is not limited to these examples.

Example 1
An artificial leather substrate in which 14% by mass of polyurethane is impregnated with an entangled nonwoven fabric of cationic dyeable polyester fibers with a fineness of 0.08 dtex is dyed in gray with a cationic dye to raise the surface fibers and is a raised artificial leather A leather-like sheet was prepared. This leather-like sheet had a thickness of 500 μm, an apparent density of 0.530 g / cm ³ , and a basis weight of 265 g / cm ² . It was 0.9% when the total visible light transmittance of wavelength 380-780 nm of this leather-like sheet | seat was measured based on the total light transmittance (%) measuring method prescribed | regulated to JIS-K7136. Further, the air permeability measured according to the JIS L 1096 Gurley method was 13.5 cm ³ / (cm ² · second). The results are shown in Table 1 below.

  Using the leather-like sheet thus obtained, as shown in FIG. 2, it was adhered with a urethane adhesive so as to cover the entire side surface of the case main body for a head mount display having an opening on the upper side surface. Thus, a housing for a head mounted display was manufactured. The inside of the obtained housing for a head mounted display was shielded from light and had air permeability.

Example 2
In Example 1, instead of using an artificial leather substrate dyed in gray color, an artificial leather substrate in which 14% by mass of polyurethane is impregnated with a non-woven fabric of polyester fiber having a fineness of 0.08 dtex containing 1% by mass of carbon black is used. The leather-like sheet was evaluated in the same manner as in Example 1 except that a leather-like sheet having a thickness of 350 μm was used. The case for a head mounted display was also manufactured. The results are shown in Table 1.

[Example 3]
Instead of using the artificial leather substrate dyed in gray color in Example 1, using an artificial leather substrate in which 14% by mass of polyurethane is impregnated and imparted to a non-woven fabric of polyester fiber having a fineness of 0.08 dtex containing 5% by mass of carbon black The leather-like sheet was evaluated in the same manner as in Example 1 except that the manufactured 470-μm-thick leather-like sheet was used, and a case for a head mounted display was manufactured. The results are shown in Table 1.

Example 4
Instead of using the artificial leather substrate dyed in gray in Example 1, an artificial leather substrate in which 14% by mass of polyurethane is impregnated with a non-woven fabric of polyester fiber having a fineness of 0.08 dtex containing 1% by mass of carbon black The leather-like sheet was evaluated in the same manner as in Example 1 except that a leather-like sheet with a thickness of 440 μm was used, the surface of which was printed in gray by printing. The results are shown in Table 1.

[Example 5]
Instead of using the artificial leather substrate dyed in gray in Example 1, an artificial leather substrate in which 14% by mass of polyurethane is impregnated with a non-woven fabric of polyester fiber having a fineness of 0.08 dtex containing 1% by mass of carbon black The leather-like sheet was evaluated in the same manner as in Example 1 except that a 470 μm-thick leather-like sheet having a gray printed surface was used for printing, and a case for a head mounted display was manufactured. The results are shown in Table 1.

[Examples 6, 7]
In the same manner as in Example 1 except that instead of using the artificial leather substrate dyed in gray in Example 1, a 450 μm-thick leather-like sheet is used, whose surface is printed in blue or red-green by ink jet printing. The leather-like sheet was evaluated, and a housing for a head mounted display was manufactured. The results are shown in Table 1.

[Example 8]
A leather-like sheet was evaluated in the same manner as in Example 1 except that a leather-like sheet whose thickness was adjusted to 450 μm was omitted in Example 1 without using dyeing, and a case for a head mount display was manufactured. . The results are shown in Table 1.

1, 31, 41, 51 Casing 1a, 31a, 41a, 51a Casing Body 1b Permeable Sheet 2 Lens Unit 2a Right Eye Eyepiece 2b Left Eye Eyepiece 2c Face Rest Member 2d Nose Head 2e Lens Mounting Recess 2f Lens Mounting recess 2j Lens unit body 3 Fixed belt 3a Belt 3b Size adjustment tool 4 Image display unit 4a Right eye image display unit 4b Left eye image display unit 5 Display control unit 6 Image signal input terminal 7 Transmission cable 10 Head mount display 15 Battery unit DESCRIPTION OF SYMBOLS 16 Ventilation apparatus 20 Reproduction apparatus 21 Memory | storage part 22 Reproduction | regeneration control part 23 Image signal output terminal 100 Head mounted display system U User v Opening

Claims (7)

A housing used for a shielded head mounted display,
A housing for a head mount display, comprising: a housing body having at least one opening; and a light-shielding air-permeable sheet covering the opening.   The case for a head mounted display according to claim 1, wherein the breathable sheet comprises a cloth.   The housing for a head mounted display according to claim 2, wherein the cloth comprises a nonwoven fabric or a leather-like sheet including the nonwoven fabric.   The case for a head mounted display according to any one of claims 1 to 3, wherein the breathable sheet has a total visible light transmittance of 10% or less at a wavelength of 380 to 780 nm. The case body is box-like with a front and a side, and has at least one said opening in the side,
The case for a head mounted display according to any one of claims 1 to 4, wherein the breathable sheet is laminated so as to cover the side surface. A shielded head mounted display that is used by being applied to the face so as to cover the user's eyes,
A housing for a head mounted display according to any one of claims 1 to 5,
An image display unit for displaying an image accommodated in the head mounted display housing;
A shield type head mount display comprising at least a fixing portion for fixing the head mount display casing to the head in a state of being placed on the face so as to cover the eyes of the user.   The shielded head mounted display according to claim 6, further comprising a ventilation device in the housing for the head mounted display.

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