TWM515653U - Head mounted display - Google Patents

Abstract

The present invention discloses a head mounted display. The head mounted display includes a base, head band structure, and at least one head band step adjusting module fixed on the base. The at least one head band step adjusting module includes a head band adjusting gear structure engaged with a head band gear of the head band structure. In which, one end of the head band structure moves step by step in response to the rotation of the head band adjusting gear structure.

Description

Head mounted display device

The present invention relates to a display device, and more particularly to a head mounted display device.

With the rapid development of technology, people's demand for information absorption and multimedia video is increasing. They usually receive external information through visual or auditory, commonly used multimedia playback devices, network communication devices, and computer devices. It is used with displays such as LCD or LED, and the captured image must be displayed, but the image pixels and size that can be displayed are limited by the size and performance of the display, and lack of visual effects. Long-term use can also cause eye fatigue.

Therefore, a Head-Mounted Display (HMD) has appeared on the market. The head-mounted display is an optical product for stereoscopic display, which transmits a signal having a stereoscopic effect of two-eye parallax, sequentially transmitted to the eyes through a display element disposed in front of both eyes and an optical lens, thereby generating a stereoscopic and large Size image. Head-mounted displays are typically used in augmented reality (AR) systems or virtual reality (VR) systems, and can be moved by users and used as an input device to receive users. Reaction, and through the head-mounted display worn on the user's head, the image and text can also be added to the image viewed by the user to achieve virtual reality or augmented reality. Effect.

Please refer to FIG. 1 , which is a schematic structural view of a head mounted display disclosed in Taiwan Patent No. I457602. The head mounted display includes a housing, a display component disposed in the housing, a adjuster, and a headband and a forehead pad connected to the housing, and the user can adjust the length of the headband through the adjuster to match the head mounted display It is worn and fixed at the appropriate position on the user's head to facilitate the user to view the image displayed by the display element.

In general, the adjusters of conventional head-mounted displays are mostly in the form of buckles, in the form of belt latches or in the form of VELCRO, however, the housing and the display elements therein have considerable weight. In the process of wearing a head-mounted display, the user usually needs to hold the housing with one hand, and the other hand can adjust the adjuster, which is inconvenient. Secondly, the forehead pad of the conventional head-mounted display does not have an adjustment structure for spacing with the user's forehead, but the size of each user's head is not the same, resulting in the forehead pad being difficult to adhere to certain The user's forehead causes discomfort to the users.

As can be seen from the above description, the conventional head mounted display has an improved space.

The purpose of the present invention is to provide a head mounted display device, and more particularly to a head mounted display device that can adjust the headband structure and the forehead pad to secure the head mounted display device to the user's head.

In a preferred embodiment, the present disclosure provides a head mounted display device including: a base having at least one display module disposed therein, and the base includes at least one corresponding to the at least one display module a window for a user to view an image displayed by the at least one display module; a headband structure for surrounding the head of the user together with the base And at least one headband adjustment module for the headband structure to pass therethrough and for the user to operate and the paragraph adjustment does not penetrate the headband structure of the at least one headband segment adjustment module One of the lengths to secure the head mounted display device to the head of the user.

In a preferred embodiment, the at least one headband section adjustment module includes a headband adjustment gear structure, and the headband structure includes a headband toothed portion that engages the headband adjustment gear structure; The length of the headgear structure of the at least one headed adjustment module is varied by the rotation of the headband adjustment gear structure.

In a preferred embodiment, the at least one headband segment adjustment module further includes a fixing structure fixed to one side of the base and fixed in the fixing structure and passing through the headband adjusting gear structure. a shaft body for the headband adjusting gear structure to pivot with the shaft body as an axis.

In a preferred embodiment, the headband structure further includes a headband passing through one of the headband grooves to limit movement of the headband structure when the headband adjustment gear structure is toggled to rotate. range.

In a preferred embodiment, the headband adjustment gear structure includes an adjustment gear and a toggle wheel that are superposed on each other, and the adjustment gear has an adjustment tooth portion that meshes with the head tooth portion, and the toggle The wheel has a dial for the user to toggle.

In a preferred embodiment, the at least one headband adjustment module further includes a button structure, and the headband adjustment gear structure cannot be toggled when the button structure is not pressed.

In a preferred embodiment, the button structure includes a button tooth portion, and the headband adjusting gear structure includes an adjusting gear and a dialing wheel that are superposed on each other; wherein the adjusting gear has a toothed portion of the headband An adjusting toothing portion having a dialing portion formed on the outer side of the dialing wheel and configured for the user to move, and formed on the inner side of the dialing wheel and when the button structure is not pressed With the button A toggle tooth tooth that meshes with the tooth.

In a preferred embodiment, the head mounted display device further includes: a forehead pad; and a forehead pad segment adjustment module disposed on the base for the user to operate and paragraphwise adjust A distance between the forehead pad and the head of the user is set thereon to cause the forehead pad to fit the head.

In a preferred embodiment, the forehead pad segment adjustment module includes a fixed abutting structure fixed to the base and a forehead pad moving structure for driving the forehead pad to move, and is fixed The top structure has an abutting tooth portion, and the forehead pad moving structure has a forehead pad moving tooth portion engaged with the abutting tooth portion; wherein the forehead pad moving structure is attached to the forehead pad moving structure Paragraph movement when forced.

In a preferred embodiment, the head mounted display device further includes a forehead pad limiting structure, and the forehead pad limiting structure includes at least one limiting tooth portion and configured to drive the at least one limiting tooth portion to synchronize Displacement of one of the limit release portions; wherein, when the limit release portion is not applied, the at least one limit tooth portion is engaged with the forehead pad moving tooth portion to limit the forehead pad movement structure mobile.

In a preferred embodiment, the present invention also provides a head mounted display device comprising: a base comprising at least one window and at least one display module corresponding to the at least one window and disposed in the base a headband structure comprising a toothed portion; and at least one headband adjustment module fixed to the base and including a headband adjustment gear structure meshing with the headband tooth portion; wherein the headband One end of the structure is moved in a paragraphwise manner due to the rotation of the headband adjustment gear structure to change the length of the headgear structure into the base.

In a preferred embodiment, the at least one headband segment adjustment module further includes a fixing structure fixed to one side of the base and fixed in the fixing structure and passing through the headband adjusting gear structure. a shaft for the headband adjustment gear The structure pivots with the shaft as the axis.

In a preferred embodiment, the headband structure further includes a headband passing through one of the headband grooves to limit movement of the headband structure when the headband adjustment gear structure is toggled to rotate. range.

In a preferred embodiment, the headband adjustment gear structure includes an adjustment gear and a toggle wheel that are superposed on each other, and the adjustment gear has an adjustment tooth portion that meshes with the head tooth portion, and the toggle The wheel has a dial for the user to toggle.

In a preferred embodiment, the at least one headband adjustment module further includes a button structure, and the headband adjustment gear structure cannot be toggled when the button structure is not pressed.

In a preferred embodiment, the button structure includes a button tooth portion, and the headband adjusting gear structure includes an adjusting gear and a dialing wheel that are superposed on each other; wherein the adjusting gear has a toothed portion of the headband An adjusting toothing portion having a dialing portion formed on the outer side of the dialing wheel and configured for the user to move, and formed on the inner side of the dialing wheel and when the button structure is not pressed a toggle tooth portion that engages the button tooth.

In a preferred embodiment, the head mounted display device further includes: a forehead pad; and a forehead pad segment adjustment module disposed on the base for a user to operate and paragraphwise adjustment A distance between the forehead pad and one of the heads of the user is placed thereon to cause the forehead pad to fit the head.

In a preferred embodiment, the forehead pad segment adjustment module includes a fixed abutting structure fixed to the base and a forehead pad moving structure for driving the forehead pad to move, and is fixed The top structure has an abutting tooth portion, and the forehead pad moving structure has a forehead pad moving tooth portion engaged with the abutting tooth portion; wherein the forehead pad moving structure is attached to the forehead pad moving structure Paragraph movement when forced.

In a preferred embodiment, the head mounted display device further includes a forehead pad limiting structure, and the forehead pad limiting structure includes at least one limiting tooth portion and is configured to And driving the at least one limit tooth portion to be synchronously displaced by the limit releasing portion; wherein the at least one limiting tooth portion is engaged with the forehead pad moving tooth portion when the limit releasing portion is not applied Move to limit the movement structure of the forehead pad.

1‧‧‧ head-mounted display device

11‧‧‧Base

12‧‧‧ headband structure

13‧‧‧ Forehead pad

14‧‧‧Display module

15‧‧‧ headband paragraph adjustment module

16‧‧‧ Forehead pad paragraph adjustment module

17‧‧‧ Forehead pad limit structure

111‧‧‧Window

121‧‧‧ headband groove

122‧‧‧ head tooth

151‧‧‧ headband adjustment gear structure

152‧‧‧Fixed structure

153‧‧‧Axis

154‧‧‧ button structure

155‧‧‧ headband adjustment elastomer

161‧‧‧ forehead pad mobile structure

162‧‧‧Fixed top structure

163‧‧‧Fixed cover

171‧‧‧First limit tooth

172‧‧‧Second limit tooth

173‧‧‧ Groove

174‧‧‧Restriction Department

175‧‧‧ forehead pad adjustment elastomer

1511‧‧‧Adjustment gear

1512‧‧‧Toggle wheel

1541‧‧‧ button tooth

1611‧‧‧Forehead pad moving tooth

1621‧‧‧Right tooth

1731‧‧‧Longitudinal slot

1732‧‧‧transverse trough

15111‧‧‧Adjusting the tooth

15121‧‧‧The Ministry of Movement

15122‧‧‧Turn the gear teeth

D1‧‧ Direction

D2‧‧ Direction

FIG. 1 is a schematic diagram showing the appearance of a preferred head mounted display device in a preferred embodiment.

FIG. 2 is a schematic view showing the appearance of the head-mounted display device shown in FIG. 1 from another perspective.

FIG. 3 is a partial structural diagram of the headband type adjustment module and the headband structure of the head mounted display device shown in FIG. 1.

Fig. 4 is a partial structural view of the button structure and the headband structure of the headband paragraph type adjustment module shown in Fig. 3.

Fig. 5 is a perspective exploded view showing the button structure and the headband structure of the headband paragraph type adjustment module shown in Fig. 4.

6 is a perspective exploded view showing the button structure of the headband segment type adjustment module shown in FIG. 4 and the headband structure at another viewing angle.

Fig. 7 is a structural schematic view of the frontal pad section adjusting module of the head mounted display device shown in Fig. 1.

Figure 8 is a schematic view showing the structure of the forehead pad paragraph type adjustment module shown in Figure 7 from another perspective.

Figure 9 is a partial structural view of the forehead pad paragraph adjustment module shown in Figure 7.

Fig. 10 is a schematic view showing the operation relationship of the fixed abutting structure and the forehead pad limiting structure shown in Fig. 9.

Referring to FIG. 1 to FIG. 6 , FIG. 1 is a schematic structural view of a head-mounted display device according to a preferred embodiment of the present invention, and FIG. 2 is a schematic structural view of the head-mounted display device of FIG. 3 is a partial structural view of a headband type adjustment module and a headband structure of the head mounted display device of FIG. 1, and FIG. 4 is a button structure and a headband of the headband paragraph type adjustment module shown in FIG. FIG. 5 is a perspective exploded view of the button structure and the headband structure of the headband segment type adjustment module shown in FIG. 4, and FIG. 6 is a button structure of the headband paragraph type adjustment module shown in FIG. And a perspective exploded view of the headband structure from another perspective.

The head mounted display device 1 includes a base 11 , a headband structure 12 , a forehead pad 13 disposed above the base 11 , a display module 14 disposed in the base 11 , and a headband disposed on both sides of the base 11 The slanting module 15 has a second window 111 corresponding to the two display modules 14 . The user can view the image displayed by the display module 14 through the window 111 of the pedestal 11 ; The manner in which the display module 14 displays images and related techniques is well known to those skilled in the art and will not be described herein.

Moreover, when the user wears the head mounted display device 1, the base 11 and the headband structure 12 are commonly wrapped around the user's head, and in the preferred embodiment, the two ends of the headband structure 12 The two headband segment adjustment modules 15 respectively pass through the two sides of the base 11 and extend into the base 11 respectively. The user can perform the paragraph adjustment of the headband structure 12 through the headband paragraph adjustment module 15 This fixes the head mounted display device 1 to the user's head.

In detail, in the preferred embodiment, the headband section adjustment module 15 includes a headband adjustment gear 1511 structure 151, a fixing structure 152 fixed to the side of the base 11, and a structure 151 for passing the headband adjustment gear 1511. And fixed to the shaft body 153 of the fixed structure 152, and the headband structure 12 includes a headband groove 121 through which the shaft body 153 passes and a head toothed portion 122 located above the headband groove 121, and the headband adjustment The gear 1511 structure 151 includes an adjusting gear 1511 and a dialing wheel 1512 that are stacked on each other and pivoted about the shaft 153. The dialing wheel 1512 is larger than the adjusting gear 1511 and has an outer side formed on the dialing wheel 1512. And some are revealed in The fixing structure 152 has a dialing portion 15121 for the user to move, and the adjusting gear 1511 has an adjusting tooth portion 15111 that meshes with the head tooth portion 122 of the headband structure 12; When the dial 1512 and the adjustment gear 1511 are pivoted together with the shaft 153 as the axis, the headband structure 12 is engaged by the head tooth portion 122 and the adjustment tooth portion 15111 of the adjustment gear 1511. Synchronously driving, the headband structure 12 is moved in a paragraphwise manner, and the moving distance of each segment depends on the pitch of the adjusting tooth portion 15111 and/or the pitch of the headband tooth portion 122; in addition, the headband groove 121 can be The range of movement of the headband structure 12 is limited.

More specifically, when the user wears the head-mounted display device 1 on the head and the portion of the headband structure 12 that is exposed outside the susceptor 11 is too long to fix the head-mounted display device 1 to the head. The dial wheel 1512 can be rotated in the direction D1 by the toggle portion 15121, so that one end of the headband structure 12 extends into the base 11 (that is, the length of the headband structure 12 extending into the base 11 is increased. Therefore, the length of the headband structure 12 that does not penetrate the headband paragraph adjustment module 15 can be progressively reduced in a paragraphwise manner until the head mounted display device 1 can be fixed to the user's head; conversely, when the user When the head-mounted display device 1 is worn on the head and the portion of the headband structure 12 that is exposed outside the base 11 is too short to fit the head-mounted display device 1 into the head, the toggle can be toggled. The portion 15121 rotates the dial wheel 1512 in the direction D2, thereby moving one end of the headband structure 12 to the outside of the base 11 (ie, reducing the length of the headband structure 12 in the base 11), so that the headband is not worn. The length of the headband structure 12 of the paragraph adjustment module 15 can be progressively increased in a paragraphwise manner until the head mounted display device 1 can be nested. The user's head.

Preferably, but not limited thereto, the headband segment adjustment module 15 further includes a button structure 154. When the user wants to adjust the headband structure 12 through the headband segment adjustment module 15, the button must be pressed. Structure 154 is only enabled, thereby preventing the dial wheel 1512 from being easily mistouched and moving to the adjusted headband structure 12.

In detail, in the preferred embodiment, the button structure 154 includes a button tooth portion 1541, and the dial wheel 1512 is further formed on the inner side of the dial wheel 1512 and is not pressed when the button structure 154 is pressed with the button tooth portion. 1541 meshing toggle teeth The portion 15122; wherein the button structure 154 and the fixing structure 152 are disposed with a headband adjusting elastic body 155. When the user applies a pressing force to the button structure 154 which is greater than the elastic force of the headband adjusting elastic body 155, the button structure The button tooth portion 1541 of the 154 moves downward and leaves the dial gear tooth portion 15122 of the dialing wheel 1512. At this time, since the button tooth portion 1541 and the dial gear tooth portion 15122 are not in mesh with each other, the dial wheel 1512 can be adapted accordingly. The user's toggle rotates to move the headband structure 12; and when the user no longer presses the button structure 154 to cause the button structure 154 to return to the home position in response to the headband adjusting the elastic force of the elastic body 155, the button The tooth portion 1541 is moved upward to return to the home position and is engaged with the adjustment tooth portion 15111, so the dial wheel 1512 cannot be rotated.

Please refer to FIG. 7 to FIG. 10 . FIG. 7 is a schematic structural view of a frontal pad section adjusting module of the head mounted display device shown in FIG. 1 , and FIG. 8 is a front forehead pad type adjusting module shown in FIG. 7 . FIG. 9 is a partial structural view of the forehead pad segment type adjustment module shown in FIG. 7, and FIG. 10 is a schematic view showing the operation relationship of the fixed abutment structure and the forehead pad limit structure shown in FIG.

In the preferred embodiment, the head mounted display device 1 further includes a forehead pad segment adjustment module 16 disposed on the base 11 for user operation and paragraph adjustment of the forehead pad 13 and the user. The spacing of the heads further causes the forehead pad 13 to fit over the user's head.

In detail, the forehead pad segment adjustment module 16 includes a forehead pad moving structure 161 on which the forehead pad 13 is disposed, a fixed abutment structure 162 fixed to the base 11 and a fixed cover body 163, and is fixed. The abutting structure 162 is located in the lower groove of the forehead pad moving structure 161, and a part of the forehead pad moving structure 161 is limited to the space between the base 11 and the fixed cover 163, so that the forehead pad can be avoided. The moving structure 161 is detached outward during the movement; wherein the sidewall of the groove below the forehead pad moving structure 161 is formed with a forehead pad moving tooth portion 1611, and the fixed abutting structure 162 has a front fore pad moving tooth portion 1611 The abutting tooth portion 1621 that is engaged with the forehead pad moving tooth portion 1611 is extended.

Furthermore, when the user wears the head mounted display device 1 on the head and When the position of the forehead pad 13 is inappropriate so that the forehead pad 13 cannot be attached to the user's head, the forehead pad 13 can be moved forward or backward by applying a force to the forehead pad moving structure 161. Until the forehead pad 13 is in a proper position; wherein the force applied to the forehead pad moving structure 161 is to overcome the friction between the abutting tooth portion 1621 and the forehead pad moving tooth portion 1611 and/or the abutting tooth At least one of the portion 1621 or the forehead pad moving tooth portion 1611 is deformed to cause the forehead pad moving structure 161 to move in a paragraph, and the moving distance of each segment depends on the pitch of the abutting tooth portion 1621 and/or Or the forehead pad moves the pitch of the tooth portion 1611.

Preferably, but not limited thereto, the head mounted display device 1 further includes a forehead pad limit structure 17 for adjusting the forehead pad 13 and the user when the user wants to pass the forehead pad segment adjustment module 16 When the distance between the heads of the persons is removed, the limit state of the forehead pad restricting structure 17 to the forehead pad moving structure 161 must be released, thereby preventing the forehead pad moving structure 161 from being easily mistakenly moved.

In detail, in the preferred embodiment, the forehead pad limiting structure 17 includes a first limiting tooth portion 171, a second limiting tooth portion 172, a T-shaped groove portion 173, and extending toward the user. a limit release portion 174, and a forehead pad adjusting elastic body 175 is disposed between the forehead pad limiting structure 17 and the base 11; wherein, when the user does not apply the elastic force greater than the forehead pad adjusting elastic body 175 When a pressing force is applied to the limit releasing portion 174, the forehead pad moving tooth portion 1611 of the forehead pad moving structure 161 and the abutting tooth portion 1621 of the fixed abutting structure 162 are respectively located in the longitudinal groove 1731 of the groove portion 173 and In the transverse groove 1732, the first limiting tooth portion 171, the second limiting tooth portion 172 and the abutting tooth portion 1621 are in a parallel state, as shown in FIG. 9, thereby cooperating with the forehead pad moving tooth portion 1611. Since the forehead pad moving tooth portion 1611 is engaged by a large number of teeth at this time, the forehead pad 13 is not easily moved by the biasing force.

When the user applies a pressing force greater than the elastic force of the forehead pad adjusting elastic body 175 to the limit releasing portion 174 to move the forehead pad limiting structure 17 downward as shown in FIG. 10, the first limit The tooth portion 171 and the second limiting tooth portion 172 are separated from the forehead pad moving tooth portion 1611 of the forehead pad moving structure 161. At this time, since the first limiting tooth portion 171 and the second limiting tooth portion 172 are not before Front pad moving structure 161 The forehead pad moving tooth portion 1611 is engaged with each other, that is, the forehead pad moving tooth portion 1611 is only engaged with the abutting tooth portion 1621 of the fixed abutting structure 162, so the forehead pad moving structure 161 can be adapted to the user's application. Forced to move paragraphwise.

In particular, in the process of the user wearing the head mounted display device 1, the head mounted display device 1 can be first put into the head, and the left and right sides of the base 11 are respectively supported by the right and left hands. At the same time, the two-wheeled wheel 1512 of the two-headed paragraph-adjusting module 15 can be respectively moved by the thumb of the right and left hands, thereby adjusting the headband to the state of the head size in a paragraphwise manner, thereby enabling the head-mounted display device 1 It is fixed to the user's head. Therefore, the present invention overcomes the inconvenience of adjusting the headband structure with one hand and the other hand when the head-mounted display device is used. In addition, the present invention is also applicable to the head-mounted display device. A forehead pad paragraph adjustment module 16 that can adjust the forehead pad 13 in a paragraphwise manner is provided on the first embodiment, so that the forehead pad 13 can be more conformed to the forehead of the user, so that the user has a comfortable feeling.

However, the above is only an embodiment, and those skilled in the art can perform any equal change design according to actual application requirements. For example, the groove portion 173 of the design forehead pad limit structure 17 can be changed according to actual application requirements. The shape or the number of the limit teeth of the forehead pad limit structure 17 , for example, whether the forehead pad limit structure 17 or the button structure 154 is set according to actual application requirements, for example, can be practically applied. The number of the headband paragraph adjustment modules 15 is selected to be required, for example, only a single headband paragraph adjustment module is disposed on one side of the base on the head mounted display device.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the scope of the patent application of the present invention. Therefore, any equivalent changes or modifications made without departing from the spirit of the present invention should be included in the present case. Within the scope of the patent application.

1‧‧‧ head-mounted display device

11‧‧‧Base

12‧‧‧ headband structure

13‧‧‧ Forehead pad

15‧‧‧ headband paragraph adjustment module

16‧‧‧ Forehead pad paragraph adjustment module

17‧‧‧ Forehead pad limit structure

111‧‧‧Window

152‧‧‧Fixed structure

154‧‧‧ button structure

174‧‧‧Restriction Department

15121‧‧‧The Ministry of Movement

15122‧‧‧Turn the gear teeth

Claims (19)

A head-mounted display device includes: a base having at least one display module disposed therein, and the base includes at least one window corresponding to the at least one display module for a user to view the at least one An image displayed by the display module; a headband structure for surrounding the head of the user with the base; and at least one headband adjustment module for the headband structure to be worn And the length of the headband structure that is not penetrated into the at least one headband adjustment module to adjust the length of the headband display device to the head of the user unit. The head mounted display device of claim 1, wherein the at least one headband type adjustment module comprises a headband adjustment gear structure, and the headband structure comprises a head that meshes with the headband adjustment gear structure. a toothed portion; wherein the length of the headband structure that does not penetrate the at least one headband type adjustment module is changed by rotation of the headband adjustment gear structure. The head-mounted display device of claim 2, wherein the at least one headband-type adjustment module further comprises a fixing structure fixed to a side of the base and fixed in the fixing structure. A shaft body of the gear structure is adjusted through the headband for pivoting the headband adjustment gear structure with the shaft body as an axis. The head-mounted display device of claim 3, wherein the headband structure further comprises a headband passing through one of the headband grooves for rotating the headband adjustment gear structure to be rotated. Limits the range of movement of one of the headband structures. The head mounted display device of claim 2, wherein the headband adjustment gear structure comprises an adjustment gear and a toggle wheel that are superposed on each other, and the adjustment tooth The wheel has an adjustment tooth portion that meshes with the head tooth portion, and the dial wheel has a toggle portion for the user to toggle. The head-mounted display device of claim 2, wherein the at least one headband-type adjustment module further comprises a button structure, and the headband adjustment gear structure cannot be Toggle the rotation. The head-mounted display device of claim 6, wherein the button structure comprises a button tooth portion, and the headband adjusting gear structure comprises an adjusting gear and a dialing wheel which are superposed on each other; wherein The gear has an adjusting tooth portion that meshes with the head tooth portion, and the dialing wheel has a dial portion formed on the outer side of the dialing wheel and configured for the user to move, and is formed on the inner side of the dialing wheel And a toggle tooth portion that engages the button tooth portion when the button structure is not pressed. The head-mounted display device of claim 1, further comprising: a forehead pad; and a forehead pad segment adjustment module disposed on the base for the user to operate The paragraph adjustment is disposed on the front pad and a spacing of the head of the user, such that the forehead pad is attached to the head. The head-mounted display device of claim 8, wherein the forehead pad segment adjustment module comprises a fixed abutting structure fixed on the base and one of the forehead pad movements a forehead pad moving structure, and the fixed abutting structure has an abutting tooth portion, and the forehead pad moving structure has a forehead pad moving tooth portion engaged with the abutting tooth portion; wherein the forehead pad moves The structure is moved in a paragraph when the forehead pad moving structure is applied. The head-mounted display device of claim 9, further comprising a forehead pad limiting structure, wherein the forehead pad limiting structure comprises at least one limiting tooth portion and for driving the at least one limit One of the tooth portion synchronous shifting limit releasing portion; wherein, When the limit releasing portion is not applied, the at least one limiting tooth portion is engaged with the forehead pad moving tooth portion to restrict movement of the forehead pad moving structure. A head mounted display device comprising: a base comprising at least one window and at least one display module corresponding to the at least one window and disposed in the base; a headband structure including a head toothed portion; At least one end-mounted adjustment module is fixed to the base and includes a headband adjustment gear structure meshing with the headband tooth portion; wherein one end of the headband structure is adapted to the headband adjustment gear structure Rotating for a paragraphwise movement to change the length of the headgear structure into the base. The head mounted display device of claim 11, wherein the at least one headband adjustment module further comprises a fixing structure fixed to a side of the base and fixed in the fixing structure. A shaft body of the gear structure is adjusted through the headband for pivoting the headband adjustment gear structure with the shaft body as an axis. The head-mounted display device of claim 12, wherein the headband structure further comprises a headband passing through one of the headband grooves for rotating the headband adjustment gear structure to be rotated. Limits the range of movement of one of the headband structures. The head mounted display device of claim 11, wherein the headband adjustment gear structure comprises an adjustment gear and a toggle wheel that are superposed on each other, and the adjustment gear has a meshing portion with the head gear portion. An adjustment tooth portion has a dial portion for the user to move. The head mounted display device of claim 11, wherein the at least one headband adjustment module further comprises a button structure, and the headband adjustment gear structure cannot be used when the button structure is not pressed. Toggle the rotation. The head-mounted display device of claim 15, wherein the button structure comprises a button tooth portion, and the headband adjusting gear structure comprises an adjusting gear and a dialing wheel which are superposed on each other; wherein The gear has an adjusting tooth portion that meshes with the head tooth portion, and the dialing wheel has a dial portion formed on the outer side of the dialing wheel and configured for the user to move, and is formed on the inner side of the dialing wheel And a toggle tooth portion that engages the button tooth portion when the button structure is not pressed. The head-mounted display device of claim 11, further comprising: a forehead pad; and a forehead pad segment adjustment module disposed on the base for a user to operate The paragraph adjustment is disposed on a front pad and a spacing of one of the heads of the user, such that the forehead pad fits to the head. The head-mounted display device of claim 17, wherein the forehead pad segment adjustment module comprises a fixed abutting structure fixed on the base and one of the forehead pad movements a forehead pad moving structure, and the fixed abutting structure has an abutting tooth portion, and the forehead pad moving structure has a forehead pad moving tooth portion engaged with the abutting tooth portion; wherein the forehead pad moves The structure is moved in a paragraph when the forehead pad moving structure is applied. The head-mounted display device of claim 18, further comprising a forehead pad limiting structure, wherein the forehead pad limiting structure comprises at least one limiting tooth portion and for driving the at least one limit One of the limit disengagement portions of the tooth portion synchronous displacement; wherein, when the limit release portion is not applied, the at least one limit tooth portion is engaged with the forehead pad moving tooth portion to limit the forehead pad Move the structure to move.