WO2018049621A1 - Head-mounted electronic device and display module thereof - Google Patents

Head-mounted electronic device and display module thereof Download PDF

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Publication number
WO2018049621A1
WO2018049621A1 PCT/CN2016/099104 CN2016099104W WO2018049621A1 WO 2018049621 A1 WO2018049621 A1 WO 2018049621A1 CN 2016099104 W CN2016099104 W CN 2016099104W WO 2018049621 A1 WO2018049621 A1 WO 2018049621A1
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WO
WIPO (PCT)
Prior art keywords
display
module
operating
optical module
elastic
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PCT/CN2016/099104
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French (fr)
Chinese (zh)
Inventor
余林蔚
谭鹏
陈松亚
Original Assignee
深圳市柔宇科技有限公司
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Priority to PCT/CN2016/099104 priority Critical patent/WO2018049621A1/en
Publication of WO2018049621A1 publication Critical patent/WO2018049621A1/en

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    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
    • G02B27/00Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01Head-up displays

Abstract

A display module (108), comprising an optical module (20), a support (24), a display screen (23), and an elastic sealing tube (25). The support (24) is movably connected to the optical module (20); the display screen (23) comprises a main body (23a) for displaying an image and is fixed to one side of the support (24) facing away from the optical module (20); the elastic sealing tube (25) is telescopic in a movement direction (Y) of the support (24), and both ends of the elastic sealing tube (25) are respectively hermetically connected to the support (24) and the optical module (20), so as to seal the main body (23a) of the display screen (23) in a space formed by the support (24), the optical module (20), and the elastic sealing tube (25). According to the technical solution, the providing of the elastic sealing tube (25) makes, when a user adjusts the diopter in an allowable range, external impurities unable to enter the elastic sealing tube (25) to influence the effect of an image projected to the eyes of the user.

Description

Head mounted electronic device and display module thereof Technical field

The invention relates to a display module of a head-mounted electronic device, in particular to a display module capable of adjusting diopter and lay length.

Background technique

Currently, near-eye display devices such as Head Mounted Display (HMD) are becoming more and more popular. The working principle is to amplify the image on the ultra-micro display through a set of precise optical lenses, and project the image on the eye, so that the wearer can view the magnified virtual image, similar to taking a magnifying glass to see the object showing an enlarged virtual image. In order to adapt to the different wearer's interpupillary distance, the HMD part currently on the market supports far-near vision adjustment, one of which is to adjust the distance between the display screen and the optical lens, so that the display screen and the optical lens need to be spaced apart. During subsequent use, dust entering the interior of the HMD tends to adhere to the display or to the optical lens, affecting the viewing effect.

Summary of the invention

SUMMARY OF THE INVENTION The present invention is directed to a display module capable of effectively preventing dust while adjusting diopter and a head mounted electronic device having the same.

Embodiments of the present invention provide a display module including an optical module, a bracket, a display screen, and an elastic sealing tube. A bracket is movably coupled to the optical module. The display screen includes a body that displays an image and is fixed to the side of the bracket opposite the optical module. The elastic sealing tube is retractable in a direction in which the bracket moves, and the two ends are sealingly connected to the bracket and the optical module respectively to seal the main body of the display screen formed by the bracket, the optical module and the elastic sealing tube In space.

Under the technical solution of the present invention, the elastic sealing tube is arranged such that when the user adjusts the diopter within the allowable range, foreign matter cannot enter the elastic sealing tube and affect the effect of the image being projected on the user's eyes.

DRAWINGS

The following figures are used to describe various embodiments of the invention in detail in conjunction with the specific embodiments. It should be understood that the various elements of the present invention are not to be construed as a

1 is a schematic diagram of a head mounted display device according to an embodiment of the present invention.

2 is a partial cross-sectional view showing a display portion of the head mounted display device of FIG. 1.

3 is a top plan view of a display portion of the head mounted display device of FIG. 1.

4 is a schematic structural view of a display module of the head mounted display device of FIG. 1.

FIG. 5 is a partially exploded perspective view of the display module of FIG. 1. FIG.

6 is another partially exploded perspective view of the display module of FIG. 1.

FIG. 7 is another partial exploded view of the display module of FIG. 1. FIG.

detailed description

The present invention will be further described in detail below in conjunction with the specific embodiments and the accompanying drawings. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to FIG. 1, the present invention provides a head mounted display device 100 including a display portion 102 for causing a user to see a display image and a headphone portion for causing a user to hear a sound matching the image. 104. In this embodiment, the earphone portion 104 is disposed at opposite ends of the display portion 102 and is a covered earphone for providing a user with a high quality auditory body. Test. The display portion 102 and the earphone portion 104 are preferably relatively rotatable to rotate to mutually overlapping positions when not in use, reducing the accommodation space required for the entire head mounted display device 100, such as the earphone portion 104 rotating in the direction indicated by the arrow AR. However, it should be understood that in other embodiments, the earphone portion 104 can also be an earbud type earphone, or just an earphone interface, such as a 3.5 mm headphone jack, for the user to access his or her desired earphone. In the present embodiment, the display portion 102 includes a housing 106 connected to the earphone portion 104 and two display modules 108 housed in the housing 106. Each display module 108 is configured to project an image beam 105 to a corresponding eye of the user. So that the user can see the enlarged dotted line and get the visual effect of watching the big screen.

Referring to FIG. 2 and FIG. 3, in the specification and the claims, when the user's binocular EY is in front of the infinity, the plane formed by the two parallel lines representing the binocular line of sight of the user is a "flat view" HS; The head-view surface HS is adjacent to the side of the user's chin and is defined as "down"; the side of the plan view HS is near the forehead of the user and is defined as "up". In order to prevent the user from feeling tired after wearing the eye for a long time, each image light beam 105 is emitted from the flat view surface HS in the downward direction of the plan view surface HS, and the optical axis thereof forms a non-zero first angle α with the plan view surface HS to correspond to incidence. Eyes EY; the optical axes of the respective image beams 105 are distant from each other in the direction of their respective incidences of the corresponding eyes, and a second angle β of non-zero is formed between the two optical axes.

In the above technical solution, when the user views the image displayed by the display module 108, the eye is inclined downward by a first angle α with respect to the eye, which is suitable for the eyes to be comfortable to watch. The habit, therefore, under the above technical solution, the user does not feel fatigued when viewing the head-mounted display device 100 for a long time. At the same time, since the optical axis of the image beam 105 projected by the display module 108 to the user's eyes is relatively "spread", that is, the optical axes are distant from each other in the direction of the respective incident corresponding eyes and between the two optical axes The non-zero second angle β is formed, so that the dotted line seen by the user in the direction opposite to the incident of the two optical axes is easy to focus and coincide, which is convenient for the user to wear the display device 100 and not easily see the non-coincident image. Love condition. Whether you can see the coincident images and whether you can watch them for a long time is an important aspect of the user experience. In summary, the above two angles are set to improve the comfort of the user.

Preferably, 5° ≤ α ≤ 15°, 1° ≤ β ≤ 18°. More preferably, 8 ° ≤ α ≤ 12 °, 5 ° ≤ β ≤ 16 °.

Optionally, the outer casing 106 includes an upper plate 106a, a lower plate 106b opposite to the upper plate 106a, and a front plate connecting the upper plate 106a and the lower plate 106b toward the user's eyes, the front plate including a left front plate 106c facing the left eye of the user and The right front panel 106d facing the right eye of the user. The angle between the left front plate 106c and the right front plate 106d is (180°-β). In this way, during the installation process, the two display modules 108 respectively abut the left front plate 106c and the right front plate 106d, so that the second angle is fixed to a preset angle β.

Alternatively, the angle γ between the lower plate 106b and the left front plate 106c and the right front plate 106d is equal to or greater than (90°-α). Alternatively, the angle δ between the upper plate 106a and the left front plate 106c and the right front plate 106d is equal to or greater than (90° + α). As such, an accommodation space within the outer casing 106 can be made.

Referring to FIG. 4 to FIG. 5 , an embodiment of the display module 108 includes an optical module 10 , an image generating device 20 , a first adjusting module 30 , and a second adjusting module 40 . The optical module 10 is movable in a set first direction X. The image generating device 20 is movably coupled to the optical module 10 in the set second direction Y. The first adjustment module 30 includes a first operating member 32 and a locking mechanism 34 that is synchronized with the optical module 10 in the first direction X. The locking mechanism 34 is in a first state in which the position of the optical module 10 is locked when the external force is not applied, and is in a second state in which the optical module 10 is movable in the first direction X when the first operation 32 receives an external force. The second adjustment module 40 includes a transmission mechanism 42 that is synchronized with the optical module 10 in the first direction X and a second operation member 44 that is coupled to the image generation device 20 via the transmission mechanism 42. The second operating member 44 surrounds the first operating member 32 and its rotation causes the image generating device 20 to move in the second direction Y.

In this manner, when the first operating member 32 is biased to bring the locking mechanism 34 into the second state, the locking mechanism 34 can be moved in the first direction by the external force, thereby driving the optical module 10 along the first direction. The X movement, in turn, acts to adjust the distance between the two display modules 108 to accommodate the user's interpupillary distance. Rotating the second operating member 44 can move the image generating device 20 in the second direction Y through the transmission mechanism 42 to adjust the distance between the image generating device 20 and the optical module 10 (ie, the diopter), thereby adapting The degree of myopia or hyperopia for different users. In addition, when the user rotates the second operating member 44, there is no need to apply force to the first operating member 32, and the locking mechanism 34 is in the first state of locking the position of the optical module 10, so that the adjustment of the diopter is not adjusted to the lay length; Similarly, the user applies the first operating member 32 without rotating to the second operating member 44, so that the diopter is not adjusted during the adjustment of the interpupillary distance. Therefore, the adjustment of the pupil distance and the diopter do not interfere with each other.

In addition, since the second operating member 44 needs a rotating operation, the portion to be rotated by the user should be far away from the center of the rotating shaft to facilitate the user's operation. Therefore, the intermediate portion of the second operating member 44 is not suitable for the user's operation. At this time, the first operating member 32 is located at an intermediate portion of the second operating member 44, that is, the structure disposed to be surrounded by the second operating member 44 is advantageous for reducing the area occupied by the two operating members 32, 44 on the lower plate 106b, so that the overall design It is relatively simple, and the two operating members 32, 44 are also arranged in such a manner that the user does not need to move to two separate positions when adjusting the diopter and the slanting distance, which is convenient for the user's operation.

Specifically, in conjunction with FIGS. 1 and 4 , a plurality of lenses are disposed in the optical module 10 and are moved in the first direction X under the guidance of the first guide bar 11 . The image generating device 20 may be an OLED display screen that produces an image beam 105 that is projected into the user's eyes in a set direction under the guidance of the optical module 10, thereby allowing the user to see the magnified virtual image. The image generating device 20 moves in the second direction Y under the guidance of the second guide bar 21.

The locking mechanism 34 includes an elastic member 36 and a positioning member for coupling with a coupling portion 107 38. The elastic member 36 is for applying an elastic force to the positioning portion 38 to be coupled with the coupling portion 107 to cause the locking mechanism 34 to be in the first state described above. The first operating member 32 transmits an external force to the elastic member 36 through the positioning member 38 to decouple the positioning member 38 from the coupling portion 107, thereby causing the locking mechanism 34 to be in the second state described above. In the present embodiment, the coupling portion 107 is disposed on an inner surface of the lower plate 106b and has an undulating wave shape. Correspondingly, the positioning member 38 is also provided with a corrugated portion 38a corresponding in shape to cooperate with the coupling portion 107. The elastic member 36 is a spring and is above the positioning member 38 and is always in a compressed state to apply a downward elastic force to the positioning portion 38. In this manner, when the coupling portion 107 and the positioning member 38 are matched by the unevenness, the positioning portion 38 cannot move in the first direction X when it is only subjected to the action of the elastic member 36.

More specifically, the opposite sides of the positioning member 38 are also respectively provided with an outwardly extending hook 38b. The two hooks 38b are slidable relative to the housing 48 of the transmission mechanism 42 (described in detail below) and locked. The mechanism 30 abuts the housing 48 when in the first state, as shown in FIG. Thus, although the elastic member 36 is biased toward the positioning member 38 at this time, the positioning member 38 is restricted from continuing to slide downward by the action of the hook 38b. When the external force exerts a force on the positioning member 38 through the first operating member 32, the positioning member 38 can slide upward (not shown) with respect to the housing 48, thereby allowing the coupling portion 107 to be uncoupled. Similarly, the first operating member 32 is also provided with two similar hooks 32a for abutting against the second operating member 44 when the locking mechanism 30 is in the first state, preventing the sliding from continuing downward; when the external force is applied The first operating member 32 slides upward so that the hook 32a abuts against the top positioning member 38, thereby decoupling the positioning member 38 from the coupling portion 107.

Preferably, the outer surface of the first operating member 32 facing outward is recessed inwardly, thereby facilitating the user to move the optical module 10 in the first direction X by the first operation 32.

It should be understood that in other embodiments, the elastic member 36 may also be disposed below the positioning member 38 while being stretched. Further, in the above embodiment, the positioning member 38 is movable in the third direction Z substantially perpendicular to the first direction X or the second direction Y. But understandable, in its In its embodiment, the first operating member 32 can also be disposed on the upper plate 106a of the outer casing 106 or the outer surface facing away from the user by the principle similar to the above embodiment, that is, the positioning member 38 is not limited to the third direction. The Z is slidable, and may be, for example, the first direction X or the second direction Y described above.

Referring to FIG. 5 and FIG. 6 , in particular, the second operating member 44 is provided with a recess 44 a , and the first operating member 32 is received in the recess 44 a so as to be surrounded by the second operating member 44 . In addition, a portion of the second operating member 44 surrounding the first operating member 32 is annular and an outer surface of the annular portion is provided with a plurality of radially extending ribs 44b, and the first operating member has a corresponding circular shape at 44. As such, the first operating member 32 is located in the recess 44a to be surrounded by the second operating member 44, and the arrangement of the ribs 44b facilitates the user's rotation of the second operating member 44.

The transmission mechanism 42 is coupled to include at least one screw 46 for converting rotational motion into linear motion. The second operating member 44 connects the at least one screw 46 and drives its rotation under the action of an external force. The second operating member 44 can be fixedly coupled to the screw 46 by screws 41 such that the two rotate in synchronization. Since the screw 46 is coupled to the image generating device 10, the second operating member 44 can be rotated to adjust the distance between the image generating device 10 and the optical module 20 to accommodate different distance or nearsighted users. In the present embodiment, since the second operating member 44 is disposed at the bottom and the image generating device 10 is moved in the second direction Y, the at least one screw 46 includes two mutually angles in the present embodiment. The screw 46, 46a is adapted to the embodiment, that is, the rotation on the second operating member 44 is transmitted to the screw 46a through the screw 46, and the screw threaded on the screw 46a is coupled with the thread on the optical module 20 to convert the rotary motion. For linear motion. However, it should be understood that in other embodiments, the second operating member 44 can be adjusted for other purposes if it is disposed at other locations, such as the housing facing away from the front side surface of the user.

More specifically, the transmission 42 further includes a housing 48 that is received within the housing 48. The housing 48 functions to fix the position of the at least one screw 46 so that the position thereof is less likely to change and the adjustment is impossible. Preferably, the housing 48 includes a fixed to light The first housing 48a of the module 20 and the second housing 48b on the opposite side are learned. The second housing 48b is provided with a blind hole 48c. The elastic member 36 is partially received in the blind hole 48c, and partially extends out of the blind hole 48c and abuts against the positioning member 38. The arrangement of the blind holes 48c serves to fix the position of the elastic member 36.

As shown in FIG. 5 , the first adjustment module 30 further includes a spring plate 35 fixed to the lower plate 106 b of the outer casing 106 . The surface of the optical module 20 is further provided with a plurality of concave friction portions 22 , and the optical module 20 is along the first During the movement of the direction X, the elastic piece 35 abuts against the friction portion 22 to emit vibration and/or sound, so as to allow the user to perceive the movement of the optical module 20, and at the same time, the depression of the friction portion 22 of the elastic piece 35 also rises. The role to a fixed position.

Referring to FIG. 7, in particular, the image generating device 20 includes a display screen 23, a bracket 24, and an elastic sealing tube 25. The display screen 23 includes a main body 23a for displaying an image, and the display screen 23 can be fixed to one side of the holder 24 facing away from the optical module 20 by screws, and the side on which the image is displayed faces the lens module 10. The bracket 24 is movably coupled to the optical module 20, for example, a plurality of fixing holes 24a are provided thereon for being sleeved to the second guiding rod 21 such that the bracket 24 is disposed in the direction of the second guiding rod 21, That is, the second direction Y is movably connected to the optical module 20. The elastic sealing tube 25 is sealingly fixed to the bracket 24 at one end, and the opposite end is sealingly fixed to the lens module 10, and can extend or contract in the direction in which the bracket 24 moves, that is, in the second direction Y, to display the display screen 23. The main body 23a on which the image is displayed is sealed in a space formed by the holder 24, the optical module 20, and the tube of the elastic seal 25. Thus, when the user adjusts the diopter within the allowable range, that is, when the distance between the display screen 23 and the lens module 10 is adjusted, since the elastic sealing tube 25 can be extended or contracted in the second direction Y, the adjustment is not performed. Causes restrictions. At the same time, due to the arrangement of the elastic sealing tube 25, the main body 23a and the lens module 10 are closed, and foreign matter cannot enter between them to affect the effect of the image being projected on the user's eyes. This is extremely important in the field of near-eye display where the display effect is extremely high. Therefore, the elastic sealing tube 25 can effectively prevent the influence of external impurities on the display effect, and at the same time, it does not limit the adjustment of the diopter.

It should be noted that in other embodiments, the above circuit board of the display screen 23 can also be set relatively small, and the bracket 24 further includes a sealing plate (not shown) for completely accommodating the display screen 23 in the bracket 24. .

Specifically, the elastic sealing tube 25 includes a first fixing member 26, a second fixing member 27, and a pipe elastic member 28. The first fixing member 26 is substantially annular/track-like, and can be fixedly coupled to one end 28a of the pipe elastic member 28 by bonding or the like, and is used for connection to the bracket 24. The manner of connecting to the bracket 24 may be to open a plurality of through holes 26a on the edge of the first fixing member 26, and at the same time, a plurality of protrusions 24b are disposed at corresponding positions of the bracket 24, such that the card passing through the through holes 26a and the protrusions 24a The buckle can achieve the connection of the first fixing member 26 to the bracket 24. Preferably, the pipe elastic member 28 is also provided with a corresponding through hole 28c corresponding to the position of the through hole 26a. Thus, the protrusion 24b of the bracket 24 is simultaneously inserted into the through holes 26a and 28c, thereby further preventing the first fixing member 26 from being further prevented. The effect of detachment from the pipe elastic member 28. Of course, in other embodiments, the first fixing member 26 and the one end 28a of the pipe elastic member 28 do not need to be bonded, and are directly fixed to the bracket 24 by the above-mentioned snapping manner. The second fixing member 27 is fixed to the lens module 10 and the other end 28b of the pipe elastic member 28 in the same manner as described above, and will not be described again. The duct elastic member 28 may be made of a material having retractability such as rubber, which is preferably poor in light transmittance, and its surface is preferably provided with a plurality of pleats 28d perpendicular to the direction of expansion and contraction for facilitating shrinkage or stretching.

It should be noted that, in the above embodiment, since the pipe elastic member 28 is soft, the fixing member 26, 28 made of plastic is hardened by two kinds of fixing members 26 and 28, and the bracket 24 and the lens module are buckled. 10 connections, while improving the reliability of the connection, also facilitate assembly during assembly. For example, the entire elastic sealing tube 25 is formed as an integral part, and can be fastened to the bracket 24 and the lens module 10 during the mounting process. However, it should also be understood that in other embodiments, the connection may be achieved by other means. For example, the ends 28a, 28b of the pipe elastic member 28 are directly bonded to the bracket 24 and the lens module 10 by adhesive bonding. In addition, in other implementations In the manner, the pipe elastic member 28 may be passed through the fixing member 26 or 28 at one end, and the other end may be connected to the bracket 24 and the lens module 10 by other means, such as adhesive bonding.

It must be noted that "first", "second", "third", and "fourth" and the like used in the present invention are used to distinguish different objects, and are not intended to describe a specific order, quantity, or importance. Similarly, the words "a", "an", "the" The word "comprising" or "comprises" or the like means that the element or item that precedes the word is intended to encompass the element or item recited after the word and its equivalent, and does not exclude other element or item. "Connected" or connected terms are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Upper", "lower", "left", "right", etc. are only used to indicate the relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may also change accordingly.

The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. Within the scope.

Claims (19)

  1. A display module comprising:
    Optical module
    a bracket movably connected to the optical module;
    The display screen includes a main body displaying the image and is fixed to the side of the bracket opposite to the optical module;
    An elastic sealing tube retractable in a direction in which the bracket moves, and two ends are sealingly connected to the bracket and the optical module respectively to seal the main body of the display screen by the bracket, the optical module and the elastic sealing tube In the space formed.
  2. The display module according to claim 1, wherein the elastic sealing tube comprises a fixing member and a pipe elastic member; the fixing member is substantially annular and connected to one end of the pipe elastic member for use with the bracket or the optical Module connection.
  3. The display module according to claim 2, wherein the surface of the pipe elastic member is provided with a plurality of pleats perpendicular to the direction of expansion and contraction.
  4. The display module of claim 2, wherein a plurality of through holes are defined in the fixing member, and a plurality of protrusions are disposed at corresponding positions of the bracket or the optical module; the fixing member and the bracket or the optical module The connection is made by the through hole and the protruding buckle.
  5. The display module of claim 4, wherein the pipe elastic member is also provided with a corresponding through hole corresponding to the position of the through hole of the fixing member, and the protrusion is simultaneously inserted into the pipe elastic member and the fixing member. In the through hole.
  6. The display module of claim 1 further comprising a first adjustment module for adjusting movement of the optical module in the set first direction; the first adjustment module comprising the first An operating member and a locking mechanism that is synchronized with the optical module in the first direction; the locking mechanism is not The first state in which the optical module is locked by the external force is in a second state that can move the optical module in the first direction when the first operating member receives an external force.
  7. The display module as claimed in claim 6 , wherein the locking mechanism comprises an elastic member and a positioning member for coupling with a coupling portion; the elastic member is configured to apply an elastic force to the positioning portion to be coupled thereto The locking mechanism is in the first state; the first operating member transmits an external force to the elastic member through the positioning member to decouple the positioning member from the coupling portion, and the locking mechanism is in the second status.
  8. The display module according to claim 6, wherein the positioning member is movable in a third direction substantially perpendicular to the first or second direction, and the elastic member is in a compressed state in the first state.
  9. The display module of claim 6 , wherein the first adjustment module further comprises a spring piece fixed to the coupling portion, the surface of the optical module further comprising a friction portion having a plurality of concave portions; the optical module The elastic piece abuts the friction portion during the movement in the first direction.
  10. The display module as claimed in claim 6 , further comprising a second adjustment module, including a transmission mechanism synchronized with the optical module in the first direction and connected to the image by the transmission mechanism A second operating member of the device, the rotation of the second operating member moving the image generating device in the second direction.
  11. The display module of claim 10, wherein the second operating member has a recess in a central portion thereof, and the first operating member is received in the recess to be surrounded by the second operating member.
  12. The display module according to claim 11, wherein the first operating member has a circular shape and a central portion thereof is recessed inwardly, and a portion of the second operating member surrounding the first operating member is annular and the ring The outer surface of the portion is provided with a plurality of ribs extending in the radial direction.
  13. The display module according to claim 10, wherein the transmission mechanism connection comprises at least one screw for converting a rotary motion into a linear motion; the second operating member is coupled to the at least one screw and acting at an external force Drive it down.
  14. A head mounted display device comprising a display portion for causing a user to see a display image, the display portion comprising a housing and a display module according to any one of claims 1 to 13 housed in the housing, each The display module is configured to project an image beam to the corresponding eye of the user to enable the user to see the virtual image.
  15. A head-mounted display device according to claim 14, further comprising a head-wound earphone for causing a user to hear a sound, the head-worn earphone being disposed at opposite ends of the display portion and It can be rotated relative to the display portion.
  16. A head-mounted display device according to claim 14, wherein each image beam is emitted from a plan view plane in a downward direction of the plan view plane, and an optical axis thereof forms a non-zero first angle α with the plan view surface to enter the corresponding eye. .
  17. A head mounted display device according to claim 16, wherein 5° ≤ α ≤ 15°.
  18. A head mounted display device according to claim 14, wherein the optical axes of the respective image beams are apart from each other in a direction along respective incident eyes, and a second angle of non-zero is formed between the two optical axes β.
  19. A head mounted display device according to claim 18, wherein 1° ≤ β ≤ 18°.
PCT/CN2016/099104 2016-09-14 2016-09-14 Head-mounted electronic device and display module thereof WO2018049621A1 (en)

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CN201680036029.2A CN107820579A (en) 2016-09-14 2016-09-14 Wear-type electronic equipment and its display module

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