WO2014006979A1 - 頭部装着型表示装置並びに光学ユニット - Google Patents
頭部装着型表示装置並びに光学ユニット Download PDFInfo
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- WO2014006979A1 WO2014006979A1 PCT/JP2013/063369 JP2013063369W WO2014006979A1 WO 2014006979 A1 WO2014006979 A1 WO 2014006979A1 JP 2013063369 W JP2013063369 W JP 2013063369W WO 2014006979 A1 WO2014006979 A1 WO 2014006979A1
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- Prior art keywords
- display panel
- lens
- unit
- head mounted
- display
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
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- G02B27/0172—Head mounted characterised by optical features
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- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
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- G02B27/01—Head-up displays
- G02B27/017—Head mounted
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B2027/0178—Eyeglass type
Definitions
- the technology disclosed herein relates to a head-mounted display device and an optical unit used by being mounted on the head of a user, and in particular, to a display panel for displaying an image and an image displayed on the display panel.
- the present invention relates to a head mounted display having an eyepiece optical unit that projects onto an eye, and an optical unit.
- a display mounted on a head and viewing an image that is, a head mounted display (HMD) is widely known.
- the head mount display has an optical unit for each of the left and right eyes, and is configured to be able to control vision and hearing in combination with headphones. If it is configured to completely block the outside world when worn on the head, the virtual reality at the time of viewing increases.
- the head mount display can also project different images to the left and right eyes, and can present 3D images if images with parallax are displayed on the left and right eyes.
- the head mounted display is a display system that provides the user with a virtual image (ie, images the virtual image on the retina of the eye).
- a virtual image can be formed on the object side when the object is closer to the lens than the focal length.
- the distance from the user at which the virtual image is formed is preferably changed according to the image.
- a head-mounted liquid crystal display device having a small size, light weight and a wide viewing angle using a small liquid crystal display element having a diagonal angle of 2 inches or less is proposed by a magnifying lens consisting of three high refractive index plastic lenses. (See, for example, Patent Document 1).
- a display device that provides a virtual image in a form suitable for video has been proposed (see, for example, Patent Document 2).
- This display device is provided with a magnifying optical system that places the same virtual image observed by the left and right eyes of the user on the same plane, and according to the aspect ratio of the image, the distance from the virtual image to the user and the virtual image Is designed to control the size of the
- high-definition broadcasts such as movies and dramas with an aspect ratio of 16: 9
- form a large virtual image on the retina at a distance of about 15 meters from the user and use NTSC (National Television System Committee) aspect
- the image of a television signal with a ratio of 4: 3 forms a virtual image of a medium size on the retina relatively near a position 3 meters from the user, making the user feel a sense of presence and watching the virtual image Reduce the feeling of fatigue.
- the observing user may feel the image uncomfortable.
- the holding member having the liquid crystal display element fixed is attached to the optical unit containing the eyepiece lens.
- the positioning accuracy of the display panel with respect to the lens must be at least a pixel size (e.g., 10 microns when using an organic EL element) or less.
- the object of the technology disclosed in the present specification is to provide a display panel for displaying an image and an eyepiece for projecting an image displayed on the display panel to the user's eye, and the display panel is accurate according to the optical characteristics of the eyepiece. It is an object of the present invention to provide an excellent head mounted display and an optical unit which are configured to be able to be aligned with each other.
- a display panel unit including a display panel for displaying an image;
- An eyepiece optical unit having a lens integrally formed with a part to which the display panel unit is attached, and performing optical processing on an image displayed by the display panel;
- a video signal processing unit that processes a video signal;
- a display control unit that drives the display panel based on the video signal processed by the video signal processing unit;
- a head-mounted display device
- the lens having the attached portion of the head mounted display according to claim 1 is made of a transparent resin molded lens, and the attached portion is integrally molded. .
- the mounting portion of the head mounted display according to claim 2 includes a plurality of fixing pins integrally molded with the transparent resin molded lens. Then, the fixing pin is inserted into a fixing hole formed on the side of the display panel portion to attach the display panel portion to the eyepiece optical portion.
- the fixing pins are displayed in the effective area of the display panel on the surface of the transparent resin molded lens. It is arranged in the place where the light of the image does not pass.
- the plurality of fixing pins are arranged at positions symmetrical with respect to the optical center of the transparent resin molded lens. It is set up.
- the eyepiece optical unit of the head mounted display according to claim 1 has a plurality of lenses, and the lens integrated with the portion to be attached is the Closest to the display panel.
- the head mounted display according to claim 1 further includes a display panel cooling unit that cools the display panel.
- the display panel cooling unit of the head mounted display according to claim 7 has a heat sink which is in surface contact with the substrate side of the display panel. There is.
- the head mounted display according to claim 8 fills a gap generated when the heat sink is brought into surface contact with the substrate side of the display panel. It further comprises a thermally conductive grease.
- the head mounted display according to claim 1 further includes a display panel sealing portion that seals the light emitting surface of the display panel.
- the display panel sealing portion of the head mounted display device is a side surface portion of the display panel fixed by the display panel holding portion. It has a cover frame that covers and a lid that closes the opening of the cover frame.
- the lid portion is a heat sink which is in surface contact with the substrate side of the display panel.
- the head mounted display according to claim 12 fills a gap generated when the heat sink is brought into surface contact with the substrate side of the display panel. It further comprises a thermally conductive grease.
- a display panel unit including a display panel for displaying an image;
- An eyepiece optical unit having a lens integrally formed with a part to which the display panel unit is attached, and performing optical processing on an image displayed by the display panel;
- An optical unit for a head mounted display comprising:
- the display panel includes an image display panel and an eyepiece lens for projecting an image displayed on the display panel onto the user's eye, and the display panel is accurate according to the optical characteristics of the eyepiece lens. It is possible to provide a superior head-mounted display as well as an optical unit configured to be aligned with the
- the display panel can be aligned with the eyepiece with an accuracy that is equal to or less than the pixel size of the display panel without compromising the reduction in size and weight.
- a head mounted display and an optical unit can be provided.
- FIG. 1 is a view schematically showing the configuration of an image display system including a head mount display.
- FIG. 2 is a view of the top of the main body of the head mount unit 10 as viewed from above.
- FIG. 3 is a view schematically showing an internal configuration of the head mount unit 10.
- FIG. 4 is a view for explaining a method of positioning and fixing the display panel to the lens barrel through the panel holder.
- FIG. 5 is a view for explaining a method of positioning and fixing the display panel to the lens barrel through the panel holder.
- FIG. 6 is a view for explaining a method of positioning and fixing the display panel to the lens barrel through the panel holder.
- FIG. 7 is a view for explaining a method of positioning and fixing the display panel to the lens barrel via the panel holder.
- FIG. 8 is a view for explaining a method of positioning and fixing the display panel to the lens barrel through the panel holder.
- FIG. 9 is a view for explaining a method of positioning and fixing the display panel to the lens barrel through the panel holder.
- FIG. 10 is a view showing a top view of a transparent resin molded lens obtained by integrally molding the fixing pin.
- FIG. 11 is a view showing a structure in which a display panel is directly positioned and fixed using a fixing pin formed integrally with a transparent resin molded lens.
- FIG. 12 is a view for explaining a method of directly positioning and fixing the display panel using the fixing pin integrally formed on the transparent resin molded lens.
- FIG. 13 is a view for explaining a method of directly positioning and fixing a display panel using a fixing pin integrally formed on a transparent resin molded lens.
- FIG. 14 is a view for explaining a method of directly positioning and fixing a display panel using a fixing pin integrally formed on a transparent resin molded lens.
- FIG. 15 is a view showing how the cover frame 1104 is attached to the lens barrel of the eyepiece optical lens unit 1101. As shown in FIG.
- FIG. 1 schematically shows the configuration of an image display system including a head mount display.
- the illustrated system includes a Blu-ray Disc playback apparatus 20 as a source of viewing content, a front end box 40 for processing an AV signal output from the Blu-ray Disc playback apparatus 20, and a Blu-ray Disc playback apparatus 20.
- a head-mounted display device (head-mount unit) 10 serving as a playback content output destination and a high-vision display serving as another output destination of playback content of the Blu-ray Disc playback device 20 (for example, HDMI (registered trademark) ) Corresponding television 30).
- the head mount unit 10 and the front end box 40 constitute a set of head mount displays.
- the front end box 40 corresponds to an HDMI (registered trademark) repeater that performs, for example, signal processing and outputs the HDMI (registered trademark) when the AV signal output from the Blu-ray Disc player 20 is input to the HDMI (registered trademark). Do.
- the front end box 40 is also a two-output switcher that switches the output destination of the Blu-ray Disc player 20 to either the head mount unit 10 or the high-definition display 30. In the illustrated example, the front end box 40 has two outputs, but may have three or more outputs. However, the front end box 40 makes the output destination of the AV signal exclusive and makes the output to the head mount unit 10 the top priority.
- HDMI High-Definition Multimedia Interface
- DVI Digital Visual Interface
- TMDS Transition Minimized Differential Signaling
- the system conforms to, for example, HDMI (registered trademark) 1.4.
- the Blu-ray Disc player 20 and the front end box 40, and the front end box 40 and the high-definition display 30 are connected by HDMI (registered trademark) cables, respectively.
- HDMI registered trademark
- the AV signal is serially transferred using a cable of another specification. You may do so.
- one cable connecting between the front end box 40 and the head mount unit 10 supplies the AV signal and the power, and the head mount unit 10 also obtains the driving power through this cable. be able to.
- FIG. 2 shows the top surface of the main body of the head mount unit 10 as viewed from above.
- the head mount unit 10 includes two independent display units for the left eye and the right eye.
- Each display unit uses, for example, a display panel made of an organic EL element.
- Each of the left and right display units is equipped with an eyepiece optical system with a low distortion and a wide viewing angle with a high resolution. By setting the wide angle of view by enlarging and projecting the image of the display panel with this eyepiece optical system and reproducing multiple channels with headphones, it is possible to reproduce a sense of realism as viewed in a movie theater.
- the head mount unit 10 has an optical system independently on the left and right, while the height and width of the eye have individual differences among users, so it is necessary to align the optical system with the eyes of the user who wears it is there. Therefore, the main body of the head mount unit 10 is equipped with an eye width adjusting mechanism for adjusting the eye width between the display unit for the right eye and the display unit for the left eye.
- FIG. 3 schematically shows the internal configuration of the head mount display 10. Each part will be described below.
- the operation unit 301 includes a touch sensor, and operation elements such as buttons and keys (for example, a power button and a cross key, none of which are shown).
- the control unit 302 centrally controls the operation in the head mount unit 10 according to the operation information via the operation unit 301. Specifically, the control unit 302 instructs the video control unit 303 to process the video signal, instructs the OSD control unit 304 to draw the OSD screen, and performs various other in-device operations to the MISC control unit 305. To direct.
- the video input interface 306 inputs a video signal reproduced and output from the Blu-ray disc reproducing apparatus 20 (see FIG. 1) via the front end box 40.
- the video control unit 303 performs image quality adjustment and other signal processing on the input video signal in accordance with an instruction from the control unit 302, and writes the video signal in the video buffer 307. Further, based on the operation information from the operation unit 301, the control unit 302 instructs the video control unit 303 to draw a cursor in the video.
- the OSD control unit 304 draws the OSD screen to be superimposed on the original video according to the information transmitted from the control unit 302 and writes the OSD screen in the OSD buffer 308.
- the OSD screen includes one or more menus / buttons selected by the user via the operation unit 301 such as a touch sensor, a submenu pulled down from the menu / buttons, and thus text information and the like.
- the MISC control unit 305 performs control other than the OSD control and the video control according to the information transmitted from the control unit 302.
- the image combining unit 309 superimposes the OSD screen written in the OSD buffer 308 on the video data written in the video buffer 307, and outputs the result to the display control unit 310.
- the display control unit 310 separates the input video signal into a left-eye video signal and a right-eye video signal, and controls drawing on the left-eye display panel 311L and the right-eye display panel 311R.
- the left-eye display panel 311L and the right-eye display panel 311R are made of, for example, display devices such as an organic EL element or liquid crystal.
- the left eye display panel 311L and the right eye display panel 311R are equipped with eyepiece optical lens sections 312L and 312R for respectively enlarging and projecting an image.
- the left and right eyepiece optical lens units 312L and 312R are each composed of a combination of a plurality of lenses, and the enlarged and projected images displayed by the left-eye display panel 311L and the right-eye display panel 311R to the left and right eyes of the observer Perform optical processing such as The images displayed on the light emitting surfaces of the left-eye display panel 311L and the right-eye display panel 311R are enlarged as they pass through the eyepiece optical lens unit, and form a large virtual image on the user's retina. Then, in the brain of the observing user, the image for the left eye and the image for the right eye are fused.
- the positioning accuracy of the display panels 311L and 311R with respect to the eyepiece optical lens portions 312L and 312R must be at least a pixel size (for example, 10 microns when using an organic EL element) or less.
- the optical characteristics of the eyepiece optical lens portions 312L and 312R have variations with respect to design values within tolerances.
- the pixel positions of the left-eye display panel 311L and the right-eye display panel 311R have variations within tolerances with respect to the panel outer frame to which the display panels 311L and 311R are attached.
- the display panel can not be directly positioned and fixed to the eyepiece, and usually, the first mechanical component for holding the eyepiece, and the display panel on the first mechanical component It is considered that a second mechanical component to be attached intervenes in the positioning and fixing of the eyepiece and the display panel.
- a panel holder 402 supports a panel portion 403 in which a display panel is previously fixed to a panel outer frame 403A. And an optical unit of a head mount unit configured to attach the panel holder 402 to the lens barrel 401 of the eyepiece.
- FIG. 4 shows the optical unit for the left eye and omits the illustration of the optical unit for the right eye.
- the illustrated optical unit includes a lens barrel 401 containing a plurality of lenses, a panel holder 402, a panel portion 403 in which the display panel is fixed in advance to the panel outer frame 403A, and the panel holder 402 and the display panel side portion. It comprises a cover frame 404 which covers and a heat sink 405 which is made of a material having high heat conductivity.
- the lens barrel 401 On the surface of the lens barrel 401, four fixing pins are formed at four corners. However, the optical characteristics of the lens barrel 401 have variations (that is, individual differences) within the tolerance with respect to the design value. Further, the panel holder 402 is screwed to the lens barrel 401.
- the panel unit 403 is obtained by bonding and fixing a display panel to the panel outer frame 403A in advance.
- the panel outer frame 403A is provided with fixing holes through which the fixing pins (described above) fixed to the lens barrel 401 are inserted.
- the display panel is made of a display element such as an organic EL, and the panel outer frame 403A is made of a substrate (FPC: Flexible Printed Circuits) on which the display panel is mounted.
- FPC Flexible Printed Circuits
- FIG. 5 illustrates how the fixing pins of the panel holder 402 are respectively inserted into the corresponding fixing holes on the panel section 403 side.
- 6 to 9 illustrate a procedure for positioning and fixing the panel portion 403 to the lens barrel 401 accommodating the eyepiece through the panel holder 402.
- the panel holder 402 is attached to the surface of the lens barrel 401 with four screws at four corners. In this state, the fixing pin of the panel holder 402 protrudes on the opposite side to the lens barrel 401.
- the display panel is positioned with respect to the optical axis of the lens barrel 401 in accordance with the individual variation of the pixel position of the display panel with respect to the panel outer frame 403A. Positioning of the display panel with respect to the optical axis of the lens barrel 401 is performed, for example, with an accuracy equal to or less than the pixel size.
- the vicinity of each fixing pin is irradiated with ultraviolet light to cure the UV resin filled in the gap with the fixing pin.
- the display panel can be fixed to the tube 401 at a desired position.
- the positioning element (positioning hole) for the lens barrel 401 and the fixing means (four screws) ) is necessary.
- the panel holder 402 is a high-value-added component that requires accuracy control, which leads to an increase in cost.
- the panel holder 402 is, for example, a metal pressed product, and needs surface treatment (or matte coating) for unnecessary light reflection prevention. When screwing the panel holder 402 into the lens barrel 401, fine metal shavings and dust due to plating are generated, and it is feared that such dust will adhere to the effective display area of the display panel Be done.
- the present applicant integrally provides a mounting portion for positioning and fixing the display panel (specifically, the panel portion on which the display panel is mounted) to the eyepiece optical lens portion, and parts such as the panel holder 402
- a mounting portion for positioning and fixing the display panel specifically, the panel portion on which the display panel is mounted
- parts such as the panel holder 402
- At least one lens constituting the eyepiece optical lens unit is a transparent resin molded lens, and a fixing pin as a mounting portion of the display panel is integrally molded on the transparent resin molded lens.
- the eyepiece optical lens unit is usually composed of a plurality of lenses, but by making all of them a resin molded product, the eyepiece optical lens unit can be made inexpensive and lightweight.
- a transparent thermoplastic resin for example, COP (Cyclic Olefin Polymer), PC (PolyCarbonate), PMMA (PolyMethyl MethAcrylate), MS (Methylmethacrylate Styrene copolymerization) resin, etc.
- COP Cyclic Olefin Polymer
- PC PolyCarbonate
- PMMA PolyMethyl MethAcrylate
- MS Metalmethacrylate Styrene copolymerization
- the fixing pins may be integrally molded with any of these resin molded lenses.
- the fixing pin it is necessary to determine the location of the fixing pin in consideration of the optical characteristics of the eyepiece optical lens unit so as not to prevent observation of the display image of the display panel by forming the fixing pin on the lens surface. That is, it is preferable to form the fixing pin at a place where the light of the image displayed in the effective area of the display panel does not pass. Furthermore, it is preferable to dispose the fixing pins at symmetrical positions with respect to the optical axis center of the resin molded lens, in consideration of the workability, etc., in which the center positions of the fixing pins match the corresponding fixing holes on the panel portion side. .
- FIG. 10 is a top view of the transparent resin molded lens in which the fixing pins are integrally molded at symmetrical positions at the center of the optical axis of the eyepiece optical lens unit at positions not interfering with the optical characteristics of the eyepiece optical lens unit (FIG. See A)) and a side view (see (B)).
- a lens having a spherical or aspheric lens shape so as to obtain optical characteristics as an eyepiece optical lens on one surface of the transparent resin molded part 1000 having a rectangular contour (bottom side in the same figure (B)) Portion 1001 is configured.
- the lens portion 1001 has an optical center substantially at the center of the rectangle. The light of the image displayed in the effective area of the display panel passes through the lens portion 1001 and is enlarged and projected to the eye of the observer.
- the other surface of the transparent resin molded part 1000 (upper surface side in the same figure (B)) has a substantially flat shape, and fixing pins 1002, 1003, 1004 and 1005 are provided at four corners of the surface. doing. These four fixing pins 1002 to 1005 are arranged at places where the light of the image displayed in the effective area of the display panel does not pass, and do not disturb the observation of the image on the display panel. Further, a set of the fixing pin 1002 and the fixing pin 1005 and a set of the fixing pin 1003 and the fixing pin 1004 are disposed at positions symmetrical with respect to the optical center of the lens portion 1001.
- FIG. 11 shows a cross-sectional configuration of the eyepiece optical lens portion 1101 in a state in which the fixing pin is formed on the transparent resin molded lens closest to the display panel and the panel portion is directly attached to the fixing pin.
- a panel unit 1103 is configured by mounting the display panel 1102 on a panel outer frame 1103A made of PC (Poly Carbonate). Further, in the panel outer frame 1103A, fixing holes are bored at positions corresponding to the fixing pins integrally formed on the first lens 1101-1.
- PC Poly Carbonate
- the eyepiece optical lens unit 1101 has a total of n transparent resin molded lenses of a first lens 1101-1, a second lens 1101-2,..., An n-th lens 1101-n, which are not shown. It is positioned and supported so that a desired optical characteristic can be obtained by the lens barrel (the optical axes of the respective lenses are assumed to be coincident).
- the first lens 1101-1 is disposed at the closest position (ie, the outermost position) to the display panel.
- a spherical or aspheric lens shape is formed in order to obtain desired optical characteristics.
- a fixing pin is integrally formed on the other surface (display panel 1102 side) of the first lens 1101-1.
- the fixing pins of the first lens 1101-1 do not disturb the optical characteristics of the eyepiece optical lens unit 1101 and are symmetrical with respect to the optical axis. Are located in
- the fixing pins integrally formed on the first lens 1101-1 are inserted through the corresponding fixing holes on the panel outer frame 1103A side, and the display panel 1102 is assembled together with the panel portion 1103. Directly attach to the first lens 1101-1. Since attachment of the panel portion 1103 does not involve screwing with a screw, there is no risk of dust generation.
- the optical axis of the eyepiece optical lens unit 1101 is changed while changing the position of the display panel 1102 along the XYZ axes and the roll, pitch, and yaw axes.
- the display panel 1102 is positioned corresponding to individual variations within tolerances of the characteristics and individual variations of the pixel position of the display panel 1102 with respect to the panel outer frame 1103A. Positioning of the display panel 1102 with respect to the optical axis of the eyepiece optical lens unit 1101 is performed, for example, with an accuracy equal to or less than the pixel size.
- a display panel for the eyepiece optical lens unit 1101 is displayed by displaying a light emission pattern that can recognize the spatial position and orientation of the display panel 1102 on the display panel 1102 and recognizing this in the captured image of a camera (not shown)
- the relative position of 1102 is adjusted in six axial directions.
- UV resin is poured into each fixing hole as shown in FIG. 13 while the position is held, and a gap with the fixing pin is filled.
- the fixing pin as shown in FIG. 12 may be inserted.
- each fixing pin is irradiated with ultraviolet light, and the UV resin filled in the gap with the fixing pin is cured to make the display panel 1102 desired for the eyepiece optical lens unit 1101. Fix in position.
- Each fixing pin is transparent to be integrally molded with the transparent resin molded lens. Therefore, when the UV resin is irradiated with the ultraviolet light, the fixing pin does not become a shadow, and there is an advantage that the setting of the curing condition and the management become easy. For example, even if it irradiates an ultraviolet ray from the side of a fixed pin, UV resin can be hardened uniformly.
- each lens used in the eyepiece optical lens unit 1101 is a transparent thermoplastic resin (for example, COP, PC, PMMA, MS resin, etc.) used for optical applications, and the panel outer frame 1103A made of PC etc. It has a close linear expansion coefficient. Therefore, the relative movement change amount with respect to the temperature change is substantially equal to 0 between the fixing hole of panel outer frame 1103A and the fixing pin on the side of lens 1101-1.
- a transparent thermoplastic resin for example, COP, PC, PMMA, MS resin, etc.
- the panel holder 402 of metal material and PC are used as materials.
- the relative expansion / contraction amount difference with the panel outer frame 403A is not as small as 0.02 mm (however, it is a difference at a fluctuation of 40 degrees, and the distance between the lens center and the fixing pin is 13 mm). For this reason, it is necessary to have a device for suppressing the relative movement change amount with respect to the temperature change of the optical axis center of the panel outer frame 403A (that is, the display panel) and the lens.
- the mounting portion such as the fixing pin for mounting the panel holder 402 or the display panel is integrally molded with the eyepiece which is an injection molded product, the holding structure It can be said that the degree of freedom in shape is improved.
- the sealing structure for dustproofing the light emitting surface of the display panel 1102 mainly comprises three points of the lens barrel of the eyepiece optical lens unit 1101, the cover frame 1104 and the heat sink 1105.
- the lens barrel of the eyepiece optical lens unit 1101 and the cover frame 1104 are in close contact with each other on the surfaces facing each other without a gap.
- the cover frame 1104 and the heat sink 1105 are in close contact with each other at the surfaces facing each other.
- a cushioning material (not shown) is attached to the FPC taking-out portion of the display panel 1102 on the back surface of the cover frame 1104 in order to reduce external load on the FPC, and a structure for pressing the FPC through this cushioning material
- the assembly operation as described above is preferably performed in a clean booth to prevent dust from invading and adhesion of dust to the light emitting surface of the display panel 1102 at the time of assembly. Then, after the assembly is completed, the light emitting surface of the display panel 1102 has a dustproof structure.
- a thin display element such as the above-described organic EL element or a liquid crystal display is used. It is known that a display panel manufactured by this kind of semiconductor process is accompanied by heat generation according to power consumption. On the other hand, since the maximum driving temperature of the display panel is determined, it is considered that the display panel incorporated in the head mount unit 10 needs to be managed within the maximum driving temperature.
- the cooling structure is such that the heat sink 1105 discharges the display panel 1102 from the surface on the substrate side (that is, the back surface of the light emitting surface).
- the height of the cover frame 1104 in the optical axis direction is such that a space is created between the back surface of the display panel 1102 and the heat sink 1105 when the heat sink 1105 is attached.
- a thermally conductive grease is filled in the gap between the back surface of the opposite display panel 1102 and the heat sink 1105. Further, when assembling, an appropriate amount of heat conductive grease is applied to the back surface of the display panel 1102 or the heat sink 1105 in advance.
- the thermally conductive grease is spread and filled in a certain area between the back surface of the display panel 1102 and the heat sink 1105.
- the thermally conductive grease it is preferable to use one having an appropriate viscosity and thixotropy so as not to drip or flow out from the gap.
- the illustrated heat sink 1105 and the cooling structure using the heat conductive grease absorb the dimensional dispersion. It also has the effect of being able to
- An eyepiece light having a display panel unit including a display panel for displaying an image, and a lens integrally formed with a portion to which the display panel unit is attached, and optically processing an image displayed by the display panel Faculty, Video signal processing unit for processing video signal, And a display control unit configured to drive the display panel based on the video signal processed by the video signal processing unit.
- the head mounted display according to (1) wherein the lens having the part to be attached is a transparent resin molded lens, and the part to be attached is integrally molded.
- the portion to be attached includes a plurality of fixing pins integrally formed on the transparent resin molded lens, and the fixing pin is inserted into a fixing hole formed on the display panel portion side, and the display panel portion
- the fixing pin is disposed on the surface of the transparent resin molded lens where light of an image displayed in the effective area of the display panel does not pass.
- Type display device (5)
- the head mounted display according to (1) wherein the eyepiece optical unit includes a plurality of lenses, and the lens integrated with the portion to be attached is closest to the display panel.
- the head mounted display according to (1) further including a display panel cooling unit configured to cool the display panel.
- the head mounted display according to (1) further including: a display panel sealing unit that seals a light emitting surface of the display panel.
- the display panel sealing portion has a cover frame that covers a side surface portion of the display panel fixed by the display panel holding portion, and a lid portion that closes an opening portion of the cover frame.
- An eyepiece light having a display panel portion including a display panel for displaying an image, and a lens integrally formed with a portion to which the display panel portion is attached, and optically processing an image displayed by the display panel
- An optical unit for a head-mounted display device comprising an undergraduate.
- the technology disclosed herein has been described focusing on an embodiment applied to a head mount display consisting of a front end box and a head mount unit, but is disclosed herein
- the scope of the present invention is not limited to a specific head mount display configuration.
- the techniques disclosed herein can be similarly applied to various types of display devices in which a display panel and an optical system are integrated.
- lens portion 1002 to 1005 ... fixing pin 1101 ... ocular light Part, 1101-1 ⁇ 1101 ⁇ n ... lens 1102 ... display panel 1103 ... panel, 1103A ... panel outer frame 1104 ... cover frame, 1105 ... heat sink
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Abstract
Description
画像を表示する表示パネルを含む表示パネル部と、
前記表示パネル部を取り付ける部位と一体的に形成されたレンズを有し、前記表示パネルが表示する映像に対して光学処理する接眼光学部と、
映像信号を処理する映像信号処理部と、
前記映像信号処理部で処理された映像信号に基づいて、前記表示パネルを駆動する表示制御部と、
を具備する頭部装着型表示装置である。
画像を表示する表示パネルを含む表示パネル部と、
前記表示パネル部を取り付ける部位と一体的に形成されたレンズを有し、前記表示パネルが表示する映像に対して光学処理する接眼光学部と、
を具備する頭部装着型表示装置用の光学ユニットである。
(1)画像を表示する表示パネルを含む表示パネル部と、前記表示パネル部を取り付ける部位と一体的に形成されたレンズを有し、前記表示パネルが表示する映像に対して光学処理する接眼光学部と、映像信号を処理する映像信号処理部と、
前記映像信号処理部で処理された映像信号に基づいて、前記表示パネルを駆動する表示制御部と、を具備する頭部装着型表示装置。
(2)前記取り付ける部位を有するレンズは、透明樹脂成形レンズからなり、前記取り付ける部位が一体成形される、上記(1)に記載の頭部装着型表示装置。
(3)前記取り付ける部位は、前記透明樹脂成形レンズに一体成形された複数の固着ピンからなり、前記固着ピンを前記表示パネル部側に穿設された固着穴に挿通させて、前記表示パネル部を前記接眼光学部に取り付ける、上記(2)に記載の頭部装着型表示装置。
(4)前記固着ピンは、前記透明樹脂成形レンズ表面上で、前記表示パネルの有効エリアに表示された映像の光が通過しない場所に配設される、上記(3)に記載の頭部装着型表示装置。
(5)前記複数の固着ピンは、前記透明樹脂成形レンズの光学中心に対し対称となる位置に配設される、上記(3)に記載の頭部装着型表示装置。
(6)前記接眼光学部は、複数のレンズを有し、前記取り付ける部位と一体となるレンズは、前記表示パネルに最も近接する、上記(1)に記載の頭部装着型表示装置。
(7)前記表示パネルを冷却する表示パネル冷却部をさらに備える、上記(1)に記載の頭部装着型表示装置。
(8)前記表示パネル冷却部は、前記表示パネルの基板側に面接触するヒート・シンクを有する、上記(7)に記載の頭部装着型表示装置。
(9)前記ヒート・シンクを前記表示パネルの基板側に面接触させたときに生じる間隙を充填する熱伝導性グリースをさらに有する、上記(8)に記載の頭部装着型表示装置。
(10)前記表示パネルの発光面を封止する表示パネル封止部をさらに備える、上記(1)に記載の頭部装着型表示装置。
(11)前記表示パネル封止部は、前記表示パネル保持部により固定された前記表示パネルの側面部分を覆うカバー・フレームと、前記カバー・フレームの開口部分を塞ぐ蓋部を有する、上記(10)に記載の頭部装着型表示装置。
(12)前記蓋部は、前記表示パネルの基板側に面接触するヒート・シンクである、上記(11)に記載の頭部装着型表示装置。
(13)前記ヒート・シンクを前記表示パネルの基板側に面接触させたときに生じる間隙を充填する熱伝導性グリースをさらに有する、上記(12)に記載の頭部装着型表示装置。
(14)画像を表示する表示パネルを含む表示パネル部と、前記表示パネル部を取り付ける部位と一体的に形成されたレンズを有し、前記表示パネルが表示する映像に対して光学処理する接眼光学部と、を具備する頭部装着型表示装置用の光学ユニット。
20…ブルーレイ・ディスク再生装置
30…ハイビジョン・ディスプレイ
40…フロント・エンド・ボックス
301…操作部
302…制御部
303…映像制御部
304…OSD制御部
305…MISC制御部
306…映像入力インターフェース
307…映像バッファー
308…OSDバッファー
309…画像合成部
310…表示制御部
311L…左眼用表示パネル、311R…右眼用表示パネル
312L…左眼用接眼光学レンズ部、312R…右眼用接眼光学レンズ部
401…レンズ鏡筒、402…パネル・ホルダー
403…パネル部、404…カバー・フレーム
405…ヒート・シンク
1000…透明樹脂成形部品
1001…レンズ部分、1002~1005…固着ピン
1101…接眼光学部、1101-1~1101~n…レンズ
1102…表示パネル
1103…パネル部、1103A…パネル外枠
1104…カバー・フレーム、1105…ヒート・シンク
Claims (14)
- 画像を表示する表示パネルを含む表示パネル部と、
前記表示パネル部を取り付ける部位と一体的に形成されたレンズを有し、前記表示パネルが表示する映像に対して光学処理する接眼光学部と、
映像信号を処理する映像信号処理部と、
前記映像信号処理部で処理された映像信号に基づいて、前記表示パネルを駆動する表示制御部と、
を具備する頭部装着型表示装置。 - 前記取り付ける部位を有するレンズは、透明樹脂成形レンズからなり、前記取り付ける部位が一体成形される、
請求項1に記載の頭部装着型表示装置。 - 前記取り付ける部位は、前記透明樹脂成形レンズに一体成形された複数の固着ピンからなり、
前記固着ピンを前記表示パネル部側に穿設された固着穴に挿通させて、前記表示パネル部を前記接眼光学部に取り付ける、
請求項2に記載の頭部装着型表示装置。 - 前記固着ピンは、前記透明樹脂成形レンズ表面上で、前記表示パネルの有効エリアに表示された映像の光が通過しない場所に配設される、
請求項3に記載の頭部装着型表示装置。 - 前記複数の固着ピンは、前記透明樹脂成形レンズの光学中心に対し対称となる位置に配設される、
請求項3に記載の頭部装着型表示装置。 - 前記接眼光学部は、複数のレンズを有し、前記取り付ける部位と一体となるレンズは、前記表示パネルに最も近接する、
請求項1に記載の頭部装着型表示装置。 - 前記表示パネルを冷却する表示パネル冷却部をさらに備える、
請求項1に記載の頭部装着型表示装置。 - 前記表示パネル冷却部は、前記表示パネルの基板側に面接触するヒート・シンクを有する、
請求項7に記載の頭部装着型表示装置。 - 前記ヒート・シンクを前記表示パネルの基板側に面接触させたときに生じる間隙を充填する熱伝導性グリースをさらに有する、
請求項8に記載の頭部装着型表示装置。 - 前記表示パネルの発光面を封止する表示パネル封止部をさらに備える、
請求項1に記載の頭部装着型表示装置。 - 前記表示パネル封止部は、前記表示パネル保持部により固定された前記表示パネルの側面部分を覆うカバー・フレームと、前記カバー・フレームの開口部分を塞ぐ蓋部を有する、
請求項10に記載の頭部装着型表示装置。 - 前記蓋部は、前記表示パネルの基板側に面接触するヒート・シンクである、
請求項11に記載の頭部装着型表示装置。 - 前記ヒート・シンクを前記表示パネルの基板側に面接触させたときに生じる間隙を充填する熱伝導性グリースをさらに有する、
請求項12に記載の頭部装着型表示装置。 - 画像を表示する表示パネルを含む表示パネル部と、
前記表示パネル部を取り付ける部位と一体的に形成されたレンズを有し、前記表示パネルが表示する映像に対して光学処理する接眼光学部と、
を具備する頭部装着型表示装置用の光学ユニット。
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US14/409,586 US20150198807A1 (en) | 2012-07-04 | 2013-05-14 | Head-mounted display device and optical unit |
CN201380034411.6A CN104395816A (zh) | 2012-07-04 | 2013-05-14 | 头戴式显示装置和光学单元 |
BR112014032686A BR112014032686A2 (pt) | 2012-07-04 | 2013-05-14 | aparelho de exibição montado na cabeça, e, unidade óptica. |
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JP2021134340A (ja) * | 2020-02-28 | 2021-09-13 | 京セラ株式会社 | 熱伝導性グリース組成物およびそれを用いた物品 |
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2013
- 2013-05-14 CN CN201380034411.6A patent/CN104395816A/zh active Pending
- 2013-05-14 US US14/409,586 patent/US20150198807A1/en not_active Abandoned
- 2013-05-14 WO PCT/JP2013/063369 patent/WO2014006979A1/ja active Application Filing
- 2013-05-14 BR BR112014032686A patent/BR112014032686A2/pt not_active IP Right Cessation
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2014
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JPH08278476A (ja) * | 1995-04-07 | 1996-10-22 | Omron Corp | 液晶表示パネル及びヘッドマウントディスプレイ |
JP2004287278A (ja) * | 2003-03-24 | 2004-10-14 | Olympus Corp | 光学素子、光学系、光学装置 |
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BR112014032686A2 (pt) | 2017-06-27 |
CN104395816A (zh) | 2015-03-04 |
IN2014MN02506A (ja) | 2015-07-17 |
US20150198807A1 (en) | 2015-07-16 |
JP2014013320A (ja) | 2014-01-23 |
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