CN108700745B - A position adjustment method and terminal - Google Patents

Abstract

Embodiments of the present application provide a position adjustment method and a terminal, which relate to the technical field of terminals, and can adjust the positions of two display screens respectively, thereby improving the visual experience of users with vision defects. The specific scheme is as follows: the first adjusting member 33 includes a first motor 331, a first rotating shaft 332 and a first rotating drum 333 arranged perpendicular to the first display screen 312, the first rotating drum 333 is connected with the first motor 331, and the first rotating shaft One end of the 332 is screwed with the first rotating drum 333, and the other end is fixedly connected with the first display screen 312. The first adjustment member 33 also includes a second motor 334, a second rotating shaft 335 and a second display screen 322. Vertically arranged. The second rotating drum 336 is connected with the second motor 334 , one end of the second rotating shaft 335 is screwed with the second rotating drum 336 , and the other end is fixedly connected with the second display screen 322 . The embodiment of the present application is used to adjust the position of the display screen.

Description

A position adjustment method and terminal

This application is required to be submitted to the China Patent Office on December 26, 2016, the application number is 201611219941.X, the application name is "a method and device for focal length adjustment", and it was submitted to the China Patent Office on May 23, 2017, the application number is 201710370609.1, the priority of the Chinese patent application entitled "A method and apparatus for adjusting the focus", the entire contents of which are incorporated in this application by reference.

technical field

The embodiments of the present application relate to the technical field of terminals, and in particular, to a position adjustment method and a terminal.

Background technique

A head-mounted display (HMD) is a head-mounted display, which can achieve different effects such as virtual reality, augmented reality, and mixed reality by sending optical signals to human eyes. In recent years, the development of headsets has been extremely rapid, but they are mainly developed for users with normal vision. Most headsets are not suitable for users with visual impairments.

In response to this problem, a solution in the prior art is to adjust the position of the lens in the head-mounted display by manually controlling the buttons, so as to realize the focal length adjustment, so that users with vision defects can see clear images. However, the method of adjusting the focal length by adjusting the position of the lens will affect the user's field of view, making the user experience worse.

SUMMARY OF THE INVENTION

Embodiments of the present application provide a position adjustment method and terminal, which can adjust the positions of two display screens respectively, thereby improving the visual experience of users with vision defects.

In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions:

In a first aspect, an embodiment of the present application provides a terminal 30 including a first eyepiece 31 , a second eyepiece 32 and a first adjustment member 33 . The first eyepiece 31 includes a first lens barrel 311 and a first display screen 312 disposed in the first lens barrel 311 , and the first display screen 312 is slidably connected to the first lens barrel 311 . The second eyepiece 32 includes a second lens barrel 321 and a second display screen 322 disposed in the second lens barrel 321 . The second display screen 322 is slidably connected to the second lens barrel 321 . The first adjustment member 33 includes a first motor 331, a first rotating shaft 332, and a first rotating drum 333 arranged perpendicular to the first display screen 312. The first rotating drum 333 is connected to the first motor 331, and one end of the first rotating shaft 332 is connected to the The first rotating drum 333 is screwed together, and the other end of the first rotating shaft 332 is fixedly connected to the first display screen 312 . The first adjusting member 33 further includes a second motor 334, a second rotating shaft 335 and a second rotating drum 336 arranged perpendicular to the second display screen 322. The second rotating drum 336 is connected to the second motor 334, and one end of the second rotating shaft 335 The other end of the second rotating shaft 335 is fixedly connected with the second display screen 322 by screwing with the second rotating drum 336 .

In this way, the terminal 30 can use the first motor and the second motor respectively to adjust the position of the first display screen 312 corresponding to the left eye and the position of the second display screen 322 corresponding to the right eye to make clear images, and the user's vision will not be affected. The field range has an impact and can improve the user experience.

In combination with the first aspect, in a possible implementation manner, at least one first sliding groove 313 is provided on the inner wall of the first lens barrel 311, and at least one second sliding groove 323 is provided on the inner wall of the second lens barrel 321, The first display screen 312 is slidably connected to the first lens barrel 311 through at least one first sliding groove 313 , and the second display screen 322 is slidably connected to the second lens barrel 321 through at least one second sliding groove 323 .

In this way, the display screen can be slidably connected with the lens barrel through the sliding groove.

In combination with the first aspect and the above possible implementation manner, in another possible implementation manner, the terminal 30 further includes a second adjustment member 34, and the second adjustment member 34 includes a third motor 343, a transmission assembly 344 and a screw assembly 345, The screw assembly 345 is connected with the first lens barrel 311 and the second lens barrel 321 through threads. The third motor 343 drives the screw assembly 345 to rotate through the transmission assembly 344, so that the first lens barrel 311 and the second lens barrel 321 approach each other or move away from each other.

In this way, the terminal 30 can adjust the distance between the mirrors through the rotation of the motor, so as to adapt to the interpupillary distance of different users and improve the user's visual experience. Moreover, since manual adjustment is not required, the adjustment method is more convenient.

In combination with the first aspect and the above possible implementation manners, in another possible implementation manner, the screw assembly 345 includes a first screw 51 , a second screw 52 and a third screw 53 , and one end of the turbine 42 is connected to the surface of the first screw 51 . The two ends of the first screw 51 are respectively provided with gears, the ends of the second screw 52 and the third screw 53 are respectively provided with gears, and the two ends of the first screw 51 are respectively connected with the second screw 52 and the third screw 53. Through gear meshing, the ends of the second screw 52 and the third screw 53 without gears are respectively connected with the first lens barrel 311 and the second lens barrel 321 by screw thread.

In this way, through the cooperation of the first screw rod 51, the second screw rod 52 and the third screw rod 53, the fasteners can be more conveniently arranged to fix the first screw rod 51, the second screw rod 52 and the third screw rod 53 so that their The position is not easily moved.

Combining the first aspect and the above possible implementation manner, in another possible implementation manner, the screw assembly 345 includes a fourth screw 54 and a fifth screw 55, and one ends of the fourth screw 54 and the fifth screw 55 are respectively connected with the first screw The lens barrel 311 and the second lens barrel 321 are threadedly connected, and the transmission assembly 344 includes the output shaft 41 of the third motor 343, the connecting rod 43, the first bevel gear 44, the second bevel gear 45, the third bevel gear 46, and the fourth bevel gear. The gear 47 and the fifth bevel gear 48, the first bevel gear 44 are sleeved on the output shaft 41, the second bevel gear 45 and the third bevel gear 46 are arranged at both ends of the connecting rod 43, the first bevel gear 44 and the second bevel gear 44 The bevel gear 45 is meshed, the fourth bevel gear 47 is connected with the other end of the fourth screw 54, the fifth bevel gear 48 is connected with the other end of the fifth screw 55, and the third bevel gear 46 is respectively connected with the fourth bevel gear 47, the fifth The bevel gear 48 meshes.

In this way, the distance between the mirrors can also be adjusted through the cooperation of the bevel gear and the screw.

In combination with the first aspect and the above possible implementation manners, in another possible implementation manner, the first motor 331 , the second motor 334 and the third motor 343 may be a stepping motor, a DC motor, an asynchronous motor or a synchronous motor.

In this way, the specific implementation of the motor can be made more flexible.

In combination with the first aspect and the above possible implementation manner, in another possible implementation manner, the terminal 30 further includes a vision input component 35 for detecting vision information input by the user, and the vision information includes the vision parameter and the pupil distance parameter. At least one of the vision parameters includes a left eye vision parameter and/or a right eye vision parameter.

With reference to the first aspect and the above possible implementation manners, in another possible implementation manner, the terminal 30 further includes a memory 36 for storing vision information corresponding to the user's identification information.

In combination with the first aspect and the above possible implementation manners, in another possible implementation manner, the terminal 30 further includes a microprocessor 37 for controlling the first visual acuity information detected by the visual acuity input component 35 or stored in the memory. The adjustment member 33 or the second adjustment member 34 performs the adjustment operation.

In this way, the terminal 30 can perform the adjustment operation through the first adjustment member 33 or the second adjustment member 34 according to the accurate user vision information corresponding to the user input by the user through the vision input component 35 or stored in the memory 36 .

In combination with the first aspect and the above possible implementation manners, in another possible implementation manner, the microprocessor 37 is configured to control the first adjustment member 33 to perform an adjustment operation according to the vision information, which specifically includes: the microprocessor 37 according to the vision information Determine the reference value of the first screen distance and/or the reference value of the second screen distance; and determine the first rotation direction and the first rotation number of the first motor 331 according to the first screen distance reference value, and/or according to The second screen distance reference value determines the second rotation direction and the second rotation number of the second motor 334 . The first screen distance is the distance between the position of the first display screen 312 and the reference position of the left eye, and the second screen distance is the distance between the position of the second display screen 322 and the reference position of the right eye. The first adjustment member 33 adjusts the position of the first display screen 312 according to the first rotation direction of the first motor and the first rotation number, so that the distance between the adjusted position of the first display screen 312 and the reference position of the left eye is equal to the first display screen 312 . The reference value of a screen eye distance. The first adjustment member 33 adjusts the position of the second display screen 322 according to the second rotation direction and the second rotation number of the second motor 334, so that the distance between the adjusted position of the second display screen 322 and the reference position of the right eye is equal to The second screen eye distance reference value.

In this way, the terminal 30 can adjust the position of the display screen according to the accurate user vision information, so that the adjusted screen-to-eye distance is equal to the reference value of the screen-to-eye distance.

With reference to the first aspect and the above possible implementation manner, in another possible implementation manner, when the vision information includes the vision parameter of the left eye and/or the vision parameter of the right eye, the microprocessor 37 is configured to determine according to the vision information. The first screen-to-eye distance reference value and/or the second screen-to-eye distance reference value includes: determining the first screen-to-eye distance reference value according to the visual acuity parameter of the left eye and Expression 1. The second screen eye distance reference value is determined according to the visual acuity parameter of the right eye and Expression 1. Expression 1 is: u _i =1/(D _i -1/k) where k represents a constant, when u _i represents the reference value of the first screen-to-eye distance, D _i represents the power of the left eye; when u _i represents the power of the left eye When the second screen eye distance is the reference value, D _i represents the power of the right eye.

In this way, the terminal 30 can determine the reference value of the screen-to-eye distance according to the accurate user vision information, so that the position of the display screen can be adjusted according to the reference value of the screen-to-eye distance.

In combination with the first aspect and the above possible implementation manner, in another possible implementation manner, the microprocessor 37 is configured to control the second adjustment member 34 to perform an adjustment operation according to the vision information, which specifically includes: the microprocessor 37 according to the interpupillary distance The parameters determine the third rotation direction and the third rotation number of the third motor 343 . The second adjustment member 34 is used to adjust the distance between the first eyepiece 31 and the second eyepiece 32 according to the third rotation direction and the third rotation number of the third motor 343, so that the adjusted first eyepiece and the second eyepiece The distance between the eyepieces is equal to the interpupillary distance parameter.

In this way, the terminal 30 can adjust the distance between the eyeglasses according to the user's interpupillary distance parameter.

With reference to the first aspect and the above possible implementation manner, in another possible implementation manner, the visual acuity parameter includes at least one of myopia or hyperopia.

In this way, the terminal 30 can adjust the position of the display screen according to the user's nearsightedness or farsightedness, so that the user with both nearsightedness and farsightedness can see clear images.

In combination with the first aspect and the above possible implementation manners, in another possible implementation manner, the visual input component 35 includes the visual input component 35 may include at least one of a voice input unit and a manual input unit.

That is to say, users can input accurate vision information by voice or manually.

In combination with the first aspect and the above possible implementation manners, in another possible implementation manner, the visual input component 35 may specifically include a touch panel, an input panel with keys, a knob-type input panel, and the like.

In this way, the implementation of manual input can be made more flexible.

In combination with the first aspect and the above possible implementation manner, in another possible implementation manner, when the visual acuity information includes the value of the first screen eye distance and/or the value of the second screen eye distance, the microprocessor 37 is used for Determining the first screen eye distance reference value and/or the second screen eye distance reference value according to the vision information includes: the microprocessor 37 determining the value of the first screen eye distance as the first screen eye distance reference value. The microprocessor 37 determines the value of the second screen distance as the second screen distance reference value.

In this way, the terminal 30 can simply and directly determine the reference value of the screen distance according to the value of the screen distance input by the user or stored in the memory 36 and corresponding to the user.

With reference to the first aspect and the above possible implementation manners, in another possible implementation manner, the terminal 30 further includes: a wearing detection component 310 for detecting whether the terminal 30 has been worn by the user.

In combination with the first aspect and the above possible implementation manners, in another possible implementation manner, the terminal 30 further includes: an indication input unit 38 for detecting user input when the wearing detection unit 310 detects that the terminal 30 has been worn by the user The first indication information is used to instruct to adjust the vision parameters of the left eye and/or the vision parameters of the right eye. The microprocessor 37 is further configured to, according to the first indication information, determine the first adjustment value and/or the second adjustment value, where the first adjustment value is the adjustment value of the first screen distance, and the second adjustment value is the second screen distance distance adjustment value. The fourth rotation direction and the fourth rotation number of the first motor 331 are determined according to the first adjustment value, and/or the fifth rotation direction and the fifth rotation number of the second motor 334 are determined according to the second adjustment value. The first adjustment member 33 is also used for adjusting the position of the first display screen 312 according to the fourth rotation direction and the fourth rotation number of the first motor 331 , and/or according to the fifth rotation direction and the fourth rotation direction of the second motor 334 . Five turns to adjust the position of the second display screen 322 .

In this way, the terminal 30 can also fine-tune the position of the display screen according to the adjustment value of the vision parameter indicated by the user, so that the image of the display screen is clearer.

In combination with the first aspect and the above possible implementation manner, in another possible implementation manner, the indication input unit 38 is further configured to detect the second indication information of the user when the wearing detection unit 310 detects that the terminal 30 has been worn by the user , the second indication information is used to instruct to increase or decrease the first screen distance and/or the second screen distance, or, the first indication information is used to instruct to adjust the first display screen 312 and/or the first display screen 312 forward or backward. The position of the second display screen 322 . The microprocessor 37 is further configured to determine the sixth rotation direction and the sixth rotation number of the first motor 331 according to the second instruction information, and/or determine the seventh rotation direction and the sixth rotation direction of the second motor 334 according to the second instruction information. Seven turns. The first adjustment member 33 is also used for adjusting the position of the first display screen 312 according to the sixth rotation direction and the sixth rotation number of the first motor 331 , and/or according to the seventh rotation direction and the sixth rotation direction of the second motor 334 . Seven rotations are made to adjust the position of the second display screen 322 .

In this way, the terminal 30 can also fine-tune the position of the display screen according to the instruction information for instructing to adjust the position of the display screen, so that the image of the display screen is clearer.

In combination with the first aspect and the above possible implementation manner, in another possible implementation manner, the indication input unit 38 is further configured to detect the third indication information of the user when the wearing detection unit 310 detects that the terminal 30 has been worn by the user , and the third indication information is used to instruct to increase or decrease the interpupillary distance parameter or the eyepiece distance. The microprocessor 37 is configured to determine the eighth rotation direction and the eighth rotation number of the third motor 343 according to the third instruction information. The second adjustment member 34 is also used for adjusting the distance between the eyepieces according to the eighth rotation direction and the eighth rotation number of the third motor 343 .

In this way, the terminal 30 can fine-tune the distance between the eyepieces according to the user's instruction information, so as to improve the user's visual experience.

In combination with the first aspect and the above possible implementation manner, in another possible implementation manner, the instruction input unit 38 includes at least one of a voice instruction input unit and a posture instruction input unit; wherein the voice instruction input unit includes a microphone, The posture indication input part includes a camera.

In this way, the user can fine-tune the position of the display screen/the distance between the eyepieces by means of voice, posture, etc., without being affected by the visual obstruction of the user after wearing the terminal 30 .

In combination with the first aspect and the above possible implementation manners, in another possible implementation manner, the indication input component 38 is the same as or different from the visual input component 35 .

In combination with the first aspect and the above possible implementation manner, in another possible implementation manner, the terminal 30 further includes: an identification input component 39 for detecting identification information input by the user, where the identification information of the user includes character information corresponding to the user , at least one of voice information, fingerprint information, iris information, and face information.

In this way, the terminal 30 can determine the corresponding relationship between the vision information and the vision information through the identification information.

In a second aspect, an embodiment of the present application provides a terminal 60 including: a vision input component 61 for detecting vision information input by a user, where the vision information includes vision parameters of the left eye and/or vision parameters of the right eye. The memory 62 is used for storing vision information corresponding to the identification information of the user. The microprocessor 63 is used to determine the reference value of the screen-to-eye distance according to the vision information detected by the vision input component 61, or the vision information stored in the memory 62, and the reference value of the screen-to-eye distance includes the first screen-to-eye distance reference value and/or the second screen-to-eye distance reference value. The screen eye distance reference value, the first screen eye distance is the distance between the first display screen and the reference position of the left eye, and the second screen eye distance is the distance between the second display screen and the right eye reference position; and according to the screen eye distance From the reference value, adjust the position of the display screen so that the distance between the adjusted position of the first display screen and the left eye reference position is equal to the first screen eye distance reference value, or make the adjusted position of the second display screen The distance from the right eye reference position is equal to the second screen eye distance reference value.

In this way, the terminal can adjust the position of the first display screen corresponding to the left eye and the position of the second display screen corresponding to the right eye respectively according to the accurate vision information input by the user or the stored vision information corresponding to the user to make the imaging clear , without affecting the user's field of view, thus improving the user's experience. Moreover, the position of the display screen can be adjusted by rotating the motor, and the user does not need to manually adjust the position of the display screen, so the adjustment method is more convenient.

In a third aspect, an embodiment of the present application provides a method for position adjustment, including: the terminal determines a reference value of the screen-to-eye distance according to the user's vision information, and the vision information includes the vision information input by the user, or the identification information stored in the terminal corresponding to the user's identification information. Vision information, the vision information includes the vision parameters of the left eye and/or the vision parameters of the right eye, the reference value of the screen distance includes the first screen eye distance reference value and/or the second screen eye distance reference value, the first screen eye distance is the distance between the first display screen and the reference position of the left eye, and the second screen distance is the distance between the second display screen and the reference position of the right eye. The terminal adjusts the position of the display screen according to the reference value of the screen-to-eye distance, so that the distance between the adjusted position of the first display screen and the reference position of the left eye is equal to the first screen-to-eye distance reference value, or to make the adjusted second screen distance. The distance between the position of the display screen and the right eye reference position is equal to the second screen eye distance reference value.

In this way, the terminal can adjust the position of the first display screen corresponding to the left eye and the position of the second display screen corresponding to the right eye respectively according to the accurate vision information input by the user or the stored vision information corresponding to the user to make the imaging clear , without affecting the user's field of view, thus improving the user's experience. Moreover, the position of the display screen can be adjusted by rotating the motor, and the user does not need to manually adjust the position of the display screen, so the adjustment method is more convenient.

In combination with the third aspect, in a possible implementation manner, the vision information further includes a pupillary distance parameter, the pupillary distance parameter is a reference value of the eyepiece distance, the eyepiece distance is the distance between the first eyepiece and the second eyepiece, and the first eyepiece A first display screen is included, the second eyepiece includes a second display screen, and the method further includes: the terminal adjusts the eyepiece distance according to the interpupillary distance parameter, so that the adjusted eyepiece distance is equal to the interpupillary distance parameter.

In this way, the terminal can adjust the distance between the mirrors by rotating the motor to adapt to the pupil distance of different users and improve the user's visual experience. Moreover, since manual adjustment is not required, the adjustment method is more convenient.

With reference to the third aspect and the above possible implementation manners, in another possible implementation manner, the method further includes: after the terminal is worn by the user, the terminal receives indication information from the user; the terminal adjusts the first display in response to the indication information at least one of the position of the screen, the position of the second display, and the distance between the eyepieces.

In this way, before the terminal is worn by the user, the position of the display screen or the distance between the eyepieces can be roughly adjusted according to the vision information, and after the terminal is worn by the user, the position of the display screen or the distance between the eyepieces can be fine-tuned, thereby making the image clearer. It can improve the user experience more.

In a fourth aspect, an embodiment of the present application provides a terminal, including: a processor, a memory, a bus, and a communication interface; the memory is used to store computer execution instructions, the processor and the memory are connected through a bus, and when the terminal is running, the processor executes The computer stored in the memory executes the instructions to cause the terminal to execute the scheduling method as in any one of the third aspect above.

Description of drawings

FIG. 1 is a schematic diagram of a scenario in which a user wears a terminal according to an embodiment of the present application;

FIG. 2 is a schematic diagram of the basic principle of a head display provided by an embodiment of the present application;

3 is a schematic structural diagram of a head display provided by an embodiment of the present application;

4 is a schematic structural diagram of another head-mounted display provided by an embodiment of the present application;

FIG. 5a is a schematic structural diagram of another head-mounted display provided by an embodiment of the present application;

FIG. 5b is a schematic structural diagram of another head-mounted display provided by an embodiment of the present application;

FIG. 5c is a schematic structural diagram of another head-mounted display provided by an embodiment of the present application;

6a is a schematic structural diagram of another head-mounted display provided by an embodiment of the present application;

FIG. 6b is a schematic structural diagram of another head-mounted display provided by an embodiment of the present application;

FIG. 7 is a schematic structural diagram of another HMD provided by an embodiment of the present application;

8 is a schematic diagram of a vision information input scene provided by an embodiment of the present application;

9 is a schematic diagram of another vision information input scene provided by an embodiment of the present application;

FIG. 10 is a schematic diagram of a prompt scene provided by an embodiment of the present application;

FIG. 11 is a schematic diagram of another prompt scenario provided by an embodiment of the present application;

FIG. 12 is a schematic diagram of another prompt scenario provided by an embodiment of the present application;

FIG. 13 is a schematic diagram of another prompt scenario provided by an embodiment of the present application;

FIG. 14 is a schematic diagram of another prompt scenario provided by an embodiment of the present application;

FIG. 15 is a schematic diagram of another prompt scenario provided by an embodiment of the present application;

FIG. 16 is a schematic diagram of an indication scenario provided by an embodiment of the present application;

FIG. 17 is a schematic diagram of another indication scenario provided by an embodiment of the present application;

FIG. 18 is a schematic diagram of another indication scenario provided by an embodiment of the present application;

FIG. 19 is a schematic diagram of another indication scenario provided by an embodiment of the present application;

FIG. 20 is a schematic structural diagram of another terminal provided by an embodiment of the present application;

21 is a flowchart of a method for position adjustment provided by an embodiment of the present application;

22 is a flowchart of another method for position adjustment provided by an embodiment of the present application;

FIG. 23 is a schematic structural diagram of another terminal provided by an embodiment of the present application.

Detailed ways

For ease of understanding, the examples provide some descriptions of concepts related to the embodiments of the present application for reference. As follows:

Focal length: The distance from the optical center of the lens to the focal point.

Power: The reciprocal of the focal length.

Refraction: When light enters another medium with a different refractive index from one medium, it will change its advancing direction, which is called refraction in ophthalmic optics.

Diopter: a unit that represents the size of the refractive power, represented by D, which means that the parallel light passes through the refractive material, and the refractive power of the refractive material is 1 diopter or 1D when the focus is at 1m. In terms of lens, it refers to the unit of lens power. For example, when the focal length of the lens is 1m, the refractive power of the lens is 1D diopter.

Field of view angle: The angle formed by the two edges of the maximum range of the lens with the lens as the vertex and the object image of the object to be measured can pass through the lens is called the field of view angle. The size of the field of view determines the field of view. The larger the field of view, the larger the field of view, and the target object outside the field of view is not in the field of view.

Virtual image distance: The distance between the virtual image formed behind the lens and the human eye.

Interpupillary Distance: The distance between the pupils of a person's eyes.

Eyepiece Spacing: The distance between the center points of two eyepieces.

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application. Wherein, in the description of the embodiments of the present application, unless otherwise stated, “/” means or means, for example, A/B can mean A or B; “and/or” in this document is only a description of the associated object The association relationship of , indicates that there can be three kinds of relationships, for example, A and/or B, can indicate that A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present application, "plurality" refers to two or more than two.

The terminal provided by the embodiment of the present application is a display device that can be worn on the eyes, for example, it can be a head-mounted display device, also known as a head-mounted display, a glasses-type display, a portable theater, or video glasses. Exemplarily, for a schematic diagram of a scenario in which a user wears the terminal provided by this embodiment of the present application, reference may be made to FIG. 1 .

Specifically, in the embodiment of the present application, the adjustment method provided by the present application is introduced by taking the terminal device as a head-mounted display as an example. Referring to Figure 2, the basic principle of the head-mounted display is to magnify the image on the display screen through a set of optical lenses, project the image on the retina, and then present a large-screen image in the user's eyes. A magnified image of a virtual object.

Exemplarily, FIG. 3 provides a schematic structural diagram of a head-mounted display. The head display 200 may include: a first eyepiece 21 , a second eyepiece 22 , a first display screen 23 , a second display screen 24 , a first lens 25 and a second lens 26 . The first display screen 23 is used for imaging in combination with the first lens 25 , and the second display screen 24 is used for imaging in combination with the second lens 26 . Specifically, the first lens 25 and the second lens 26 may be one lens, or may be a lens group. The first display screen 23 and the second display screen 24 may specifically be liquid crystal display (LCD) panels or organic light-emitting diode (OLED) panels. In addition, although not shown in FIG. 3 , it should be understood that the head-mounted display may further include an earphone interface, an operation area, and the like. The operation area mainly includes the power key, the navigation key, the volume adjustment key and the menu key. Or, in another implementation manner, the power key, the navigation key, the volume adjustment key, the menu key, and the like may also be integrated on the separate remote control.

For users with vision defects, using the prior art method of adjusting the focal length for clear imaging will affect the user's field of view (ie, field of view), making the user's immersion worse, and thus reducing the user's experience.

Because users with vision defects such as nearsightedness or farsightedness have different degrees of distortion of the lens of their eyes, the virtual image distance that each eyeball can actually see clearly is different. Therefore, it is ensured that the human eye can see a clear image, and the user's field of view is not affected as in the prior art, which can improve the user's use experience.

The following will be described in detail through specific embodiments.

FIG. 3 shows the basic components and functions generally possessed by a head-mounted display. In order to make the description clearer, the following will take the head-mounted display shown in FIG. 3 as an example to describe the terminal 30 and the position adjustment method provided by the embodiment of the present application. It should be noted that, in the embodiments of this application, unless otherwise specified, the eyepiece is the general term for the first eyepiece and the second eyepiece; the lens barrel is the general term for the first lens barrel and the second lens barrel, and the display screen is the first lens barrel and the second lens barrel. The general term for a display screen and the second display screen; the lens is the general term for the first lens and the second lens; the visual acuity parameter is the collective term for the visual acuity parameter of the left eye and the visual parameter of the right eye.

Referring to FIG. 4 , an embodiment of the present application provides a head-mounted display 300 , which may include a first eyepiece 31 , a second eyepiece 32 and a first adjustment member 33 . The first eyepiece 31 includes a first lens barrel 311 and a first display screen 312 disposed in the first lens barrel 311 , and the first display screen 312 is slidably connected to the first lens barrel 311 . The second eyepiece 32 includes a second lens barrel 321 and a second display screen 322 disposed in the second lens barrel 321 . The second display screen 322 is slidably connected to the second lens barrel 321 . The first adjustment member 33 includes a first motor 331, a first rotating shaft 332, and a first rotating drum 333 arranged perpendicular to the first display screen 312. The first rotating drum 333 is connected to the first motor 331, and one end of the first rotating shaft 332 is connected to the The first rotating drum 333 is screwed together, and the other end of the first rotating shaft 332 is fixedly connected to the first display screen 312 . The first adjusting member 33 further includes a second motor 334, a second rotating shaft 335 and a second rotating drum 336 arranged perpendicular to the second display screen 322. The second rotating drum 336 is connected to the second motor 334, and one end of the second rotating shaft 335 The other end of the second rotating shaft 335 is fixedly connected with the second display screen 322 by screwing with the second rotating drum 336 .

The sliding connection between the first display screen 312 and the first lens barrel 311 may include various methods. For example, referring to FIG. 4 , at least one first sliding groove 313 is provided on the inner wall of the first lens barrel 311 , and the first display screen 312 is connected to the first lens barrel 311 through the at least one first sliding groove 313 , and the first display screen 312 can slide in the first chute 313 .

For the structure shown in FIG. 4 , the first adjustment member can perform the following first adjustment operation: when the first motor 331 in the first adjustment member 33 rotates, the first motor 331 drives the first drum 333 to rotate, and the first rotation The rotation of the drum 333 drives the first rotating shaft 332 to rotate into or out of the first rotating drum 333 . Moving, that is, driving the first display screen 312 to move along the inner wall of the first lens barrel 311 , so as to achieve the purpose of adjusting the position of the first display screen 312 .

For the structure shown in FIG. 4 , the first adjustment member can also perform the following second adjustment operation: when the second motor 334 in the first adjustment member 33 rotates, the second motor 334 drives the second drum 336 to rotate, and the second motor 334 rotates. The rotating drum 336 drives the second rotating shaft 335 to rotate into or out of the second rotating drum 336 , and the second rotating shaft 335 rotates into or out of the second rotating drum 336 to drive the second display screen 322 along the direction perpendicular to the second display screen 322 . The direction of movement is to drive the second display screen 322 to move along the inner wall of the second lens barrel 321 , so as to achieve the purpose of adjusting the position of the second display screen 322 .

It can be seen that the head display 300 provided by the embodiment of the present application can adjust the position of the first display screen 312 and the position of the second display screen 322 respectively. For users with visual impairments, the head display 300 provided in this embodiment of the present application can make clear images by adjusting the position of the first display screen 312 corresponding to the left eye and the position of the second display screen 322 corresponding to the right eye, respectively. It does not affect the user's field of view as in the prior art, so that the user experience can be improved.

Moreover, since the vision of the user's left eye and right eye may not be exactly the same, for example, some users have defective vision in the left eye, but normal vision in the right eye, if the positions of the first display screen 312 and the second display screen 322 are adjusted synchronously, Usually, only one eye can observe a clear image, while the other eye cannot observe a clear image, and the overall visual experience is poor. The head display 300 provided by the embodiment of the present application can adjust the position of the first display screen 312 corresponding to the left eye and the position of the second display screen 322 corresponding to the right eye respectively according to the actual vision conditions, so that both the left eye and the right eye can be adjusted. Clear images are observed, improving user visual experience.

In addition, manual adjustment is adopted in the prior art, and the user's eyesight is blocked after wearing the head display 300 (see FIG. 1 ), which is inconvenient for manual operation. The head display 300 provided by the embodiment of the present application can adjust the position of the display screen by controlling the rotation of the motor, without requiring the user to manually adjust the position of the display screen, so the adjustment method is more convenient.

Further, referring to FIG. 5 a , the head-mounted display 300 provided by the embodiment of the present application may further include a second adjustment member 34 . The second adjustment member 34 may include a third motor 343 , a transmission assembly 344 and a screw rod assembly 345 , and the screw rod assembly 345 is connected with the first lens barrel 311 and the second lens barrel 321 through threads. The second adjustment member 34 can perform the following third adjustment operation: the third motor 343 drives the screw assembly 345 to rotate through the transmission assembly 344, so that the first lens barrel 311 and the second lens barrel 321 are close to each other or away from each other, that is, two The lens barrel moves inward or outward at the same time.

That is, the HMD 300 can adjust the positions of the first lens barrel 311 and the second lens barrel 321 through the second adjustment member 34, so that the first lens barrel 311 and the second lens barrel 321 are close to each other or away from each other, so that the eyepiece Spacing increases or decreases.

Since the eyepiece distance should be consistent with the user's interpupillary distance, and different users have different interpupillary distances, the eyepiece distance is also different. The head display 300 provided by the embodiment of the present application can adjust the distance between the mirrors by rotating the motor, so as to adapt to the actual interpupillary distance of different users and improve the user's visual experience. Moreover, since manual adjustment is not required, the adjustment method is more convenient.

Further, referring to FIG. 5b, a first sleeve 341 may be fixed on the first lens barrel 311, a second sleeve 342 may also be fixed on the second lens barrel 321, and the screw assembly 345 passes through the first sleeve 341 and the second sleeve 341. The sleeves 342 are respectively screwed with the first lens barrel 311 and the second lens barrel 321 .

In a specific implementation, referring to FIG. 5b, the transmission assembly 344 includes the output shaft 41 of the third motor 343 and the turbine 42, the output shaft 41 is a worm, one end of the turbine 42 is matched with the worm, and the other end of the turbine 42 is connected with the screw Component 345 is connected. Wherein, the screw assembly 345 here may specifically be a screw.

In the structure shown in FIG. 5 b , when the third motor 343 rotates, the output shaft 41 drives the turbine 42 to rotate, and the rotation of the turbine 42 drives the screw assembly 345 to rotate, so that both ends of the screw assembly 345 are simultaneously screwed into the first sleeve 341 and the second sleeve 342, or screw out the first sleeve 341 and the second sleeve 342 at the same time, so that the first lens barrel 311 and the second lens barrel 321 move inward or outward at the same time.

In another specific implementation, referring to FIG. 5 c , the screw assembly 345 includes a first screw 51 , a second screw 52 and a third screw 53 , one end of the turbine 42 is engaged with the thread on the surface of the first screw 51 , and the first screw 51 Gears are respectively provided at both ends of the second screw 52 and one end of the third screw 53 are respectively provided with gears. Both ends of the first screw 51 are respectively meshed with the second screw 52 and the third screw 53 through gears. The end of the third screw 53 without gears is respectively connected with the first lens barrel 311 and the second lens barrel 321 by screw thread.

In the structure shown in FIG. 5c, when the third motor 343 rotates, the output shaft 41 drives the turbine 42 to rotate, the turbine 42 rotates and drives the first screw 51 to rotate, and the first screw 51 drives the second screw 52 and the third screw through the gear. 53 rotates, so that the second screw 52 and the third screw 53 are screwed into the first sleeve 341 and the second sleeve 342 at the same time, or the first sleeve 341 and the second sleeve 342 are screwed out at the same time, so that the first lens barrel 311 and the second lens barrel 321 move inward or outward at the same time.

It should be noted that in the process of adjusting the position of the display screen, the screw assembly 345 rotates, but the position does not move. In the structure shown in FIG. 5c, the first screw 51, the second screw 52 and the third screw 53 The combination of replacing one screw in Figure 5b can facilitate the provision of fasteners such as locks to fix the first screw 346, the second screw 347 and the third screw 348 so that their positions are not easily moved.

In another specific implementation, referring to FIG. 6 a , the screw assembly 345 includes a fourth screw 54 and a fifth screw 55 , and one ends of the fourth screw 54 and the fifth screw 55 are respectively connected with the first lens barrel 311 and the second lens barrel 321 is screwed, the transmission assembly 344 includes the output shaft 41 of the third motor 343, the connecting rod 43, the first bevel gear 44, the second bevel gear 45, the third bevel gear 46, the fourth bevel gear 47 and the fifth bevel gear 48 , the first bevel gear 44 is sleeved on the output shaft 41, the second bevel gear 45 and the third bevel gear 46 are arranged at both ends of the connecting rod 43, the first bevel gear 44 meshes with the second bevel gear 45, the fourth bevel gear 45 The gear 47 is connected to the other end of the fourth screw 54 , the fifth bevel gear 48 is connected to the other end of the fifth screw 55 , and the third bevel gear 46 meshes with the fourth bevel gear 47 and the fifth bevel gear 48 respectively.

In the structure shown in FIG. 6a, when the third motor 343 rotates, the output shaft 41 drives the first bevel gear 44 to rotate, the first bevel gear 44 rotates to drive the second bevel gear 45 to rotate, and the second bevel gear 45 rotates through the connection The rod 43 drives the third bevel gear 46 to rotate, the third bevel gear 46 drives the fourth bevel gear 47 and the fifth bevel gear 48 to rotate through gear meshing, the fourth bevel gear 47 and the fifth bevel gear 48 rotate, and drives the fourth screw 54 and the fourth and fifth screws 55 are rotated, so that the fourth screw 54 and the fourth and fifth screws 55 are screwed into the first sleeve 341 and the second sleeve 342 at the same time, or the first sleeve 341 and the second sleeve 342 are screwed out at the same time, so that The first lens barrel 311 and the second lens barrel 321 are simultaneously moved inward or outward.

In another specific implementation, as shown in FIG. 6b, the screw assembly 345 includes a screw, instead of the fourth screw 44 and the fifth screw 45 in FIG. 6a, the fourth bevel gear 47 and the fifth bevel gear 48 are sleeved on the screw.

It is worth noting that, in order to make the two lens barrels move inward and outward at the same time, in a possible implementation manner, the screw assembly and the thread at the connection of the two lens barrels have opposite helical directions, or the two lens barrels are respectively The helix direction of the thread at the junction of the screw assembly is opposite.

It should be noted that the second adjustment member 34 shown in Fig. 5a-Fig. 6b above is only an example, as long as it can ensure that the two lens barrels can be driven inward or outward at the same time by the rotation of the motor, the transmission structure can be used in In the examples of this application.

Specifically, in the embodiment of the present application, the second adjustment member 34 may perform the third adjustment operation according to the third rotation direction and the third rotation number of the third motor 343 . The third rotation direction of the third motor 343 determines whether the two lens barrels move inward or outward at the same time, and the third rotation number determines the distance the two lens barrels move inward or outward at the same time.

In addition, in the embodiment of the present application, the first motor 331 , the second motor 334 , and the third motor 343 may specifically be a stepping motor, a DC motor, an asynchronous motor, or a synchronous motor, or the like. In addition, since the motors occupy a certain space, the three motors can be dispersed or centrally arranged according to the space conditions. For example, the first motor 331 and the second motor 334 can be arranged in parallel between the two eyepieces, and the third motor 343 can be arranged in the eyepiece. above.

It can be understood that, although not shown in Figures 5a-6b, the shape of the cross-section of the lens barrel, the display screen and the lens may be oval, rectangular or other shapes in addition to circular shapes, which are not discussed here. limited.

FIG. 7 shows another schematic structural diagram of the head display 300. The head display 300 provided by the embodiment of the present application may further include a vision input component 35 for detecting vision information input by a user, and the vision information includes vision parameters and interpupillary distance parameters. at least one of the. Wherein, the vision parameters include left eye vision parameters and/or right eye vision parameters.

Further, the head-mounted display 300 may further include a memory 36 for storing vision information corresponding to the user's identification information.

The head-mounted display 300 may further include a microprocessor 37 for controlling the first adjustment member 33 or the second adjustment member 34 to perform an adjustment operation according to the vision information detected by the vision input part 35 or according to the vision information stored in the memory 36 .

The microprocessor 37 is used to control the first adjustment member 33 to perform an adjustment operation according to the vision information, which may specifically include:

The microprocessor 37 determines the reference value of the first screen distance and/or the reference value of the second screen distance according to the vision information, and determines the first rotation direction and the first rotation of the first motor 331 according to the first screen distance reference value. The number of turns, and/or the second rotation direction and the second rotation number of the second motor 334 are determined according to the second screen distance reference value. The first screen distance is the distance between the position of the first display screen 312 and the reference position of the left eye, and the second screen distance is the distance between the position of the second display screen 322 and the reference position of the right eye.

The first adjustment member 33 adjusts the position of the first display screen 312 according to the first rotation direction and the first rotation number of the first motor, that is, the first adjustment member 33 performs the above-mentioned first adjustment operation, so that the adjusted first The distance between the position of the display screen 312 and the left eye reference position is equal to the first screen eye distance reference value.

The first adjustment member 33 adjusts the position of the second display screen 322 according to the second rotation direction and the second rotation number of the second motor 334, that is, the first adjustment member 33 performs the above-mentioned second adjustment operation, so that the adjusted No. The distance between the position of the second display screen 322 and the reference position of the right eye is equal to the reference value of the second screen eye distance.

Specifically, the HMD 300 can acquire the first rotation direction and the first rotation number of the first motor 311 and/or the second rotation direction and the second rotation number of the second motor 321 in the following manner.

In a first possible implementation manner, the head-mounted display 300 includes a vision input component 35, and the vision information detected by the input component 35 includes the vision parameters of the left eye and/or the vision parameters of the right eye.

Wherein, the visual acuity parameter here may include at least one of nearsightedness or farsightedness. The visual input part 35 may include at least one of a voice input unit and a manual input unit. That is, the user can input vision information by voice or manually. When the user inputs vision information by voice, the vision input component 35 may specifically include at least one microphone for detecting the vision information in the form of voice input by the user. When the user manually inputs the vision information, the vision input component 35 may specifically include a touch panel, an input panel with keys, a knob-type input panel, and the like. In this way, the user can input accurate vision parameters of the left eye and/or the right eye through the vision input part 35 by voice or manually. Exemplarily, see FIG. 8 for a scene in which the user inputs vision parameters through the touch panel 40 . Exemplarily, see FIG. 9 for a scenario in which a user inputs a vision parameter through speech.

In this embodiment of the present application, when the user starts to use the head-mounted display 300, for example, when the head-mounted display 300 is turned on, the head-mounted display 300 may further remind the user to input vision information through a visual prompt and/or an auditory prompt. Exemplarily, referring to FIG. 10 , the head-mounted display 300 may issue a voice prompt “please input vision information” through a speaker (or an earphone). Or, for example, the head-mounted display 300 may issue a character prompt "please input the vision information" through the display screen or the touch panel 40 in the vision input part 35 . Or, for example, the head-mounted display 300 may illuminate the touch panel 40 in the vision input component 35 to prompt the user to input vision information. The schematic diagram of the head display 300 prompting the user through the touch panel 40 can be seen in FIG. 11 .

The microprocessor 37 can determine the reference value of the distance between the display screen and the reference position of the human eye according to the accurate visual acuity parameter input by the user through voice or manual mode. Among them, a far-sighted user corresponds to a larger screen-to-eye distance, and the corresponding screen-to-eye distance reference value is also larger; a myopic user corresponds to a smaller screen-to-eye distance, and the corresponding screen-to-eye distance reference value is also smaller.

It should be noted that, the head display 300 provided in this embodiment of the present application can perform the above-mentioned first adjustment operation, second adjustment operation, and third adjustment operation according to the vision information before the user wears it. At this time, the screen-to-eye distance refers to the distance between the display screen and the preset reference position of the human eye because the user has not yet worn the head-mounted display and thus cannot know the actual position of the human eye. Wherein, the reference position of the human eye is usually set between 10mm-20mm from the lens. Exemplarily, the left eye reference position may be set at a distance of 15 mm from the position of the first lens 314 , and the right eye position may be set at a distance of 15 mm from the position of the second lens 324 .

In one embodiment, the use of the microprocessor 37 for determining the first screen-to-eye distance reference value according to the visual acuity parameter of the left eye may include: determining the first screen-to-eye distance reference value according to the left eye visual acuity parameter and Expression 1. The use of the microprocessor 37 for determining the second screen-to-eye distance reference value according to the visual acuity parameter of the right eye may include: determining the second screen-to-eye distance reference value according to the right eye visual acuity parameter and Expression 1. Among them, expression one can be expressed as:

u _i =1/(D _i -1/k)

In Expression 1, when _ui represents the first screen distance reference value, D _i represents the power of the left eye; when _ui represents the second screen distance reference value, D _i represents the power of the right eye. k represents a constant, which can be specifically related to the characteristics of the actual product, such as lens parameters, product specifications and dimensions, etc. The unit of power _Di is 1/meter, 1/meter is also called diopter, expressed by D, and 1 diopter corresponds to 100 degrees of vision. Specifically, 100 degrees of myopia corresponds to -1dD, and 100 degrees of hyperopia corresponds to +1D. In this way, in the screen-to-eye distance reference value calculated according to Expression 1, the screen-to-eye distance reference value corresponding to the myopia parameter is small, and the screen-to-eye distance reference value corresponding to the hyperopia parameter is large.

Specifically, in one case, the microprocessor 37 can calculate the reference value of the screen-to-eye distance (No. 1 A reference value of eye distance and/or a reference value of second eye distance).

Or, in another case, the head-mounted display 300 may further include a memory 36, and the memory 36 may store a preset first comparison table, and the first comparison table includes the corresponding relationship between the visual acuity parameter and the screen-to-eye distance, and The correspondence between the screen-to-eye distance and the visual acuity parameter in the first comparison table satisfies the above expression one. Exemplarily, taking the visual acuity parameter as an example of myopia, a first comparison table provided in the embodiment of the present application may specifically be the following Table 1:

Table 1

Myopia parameters Reference value of screen-to-eye distance 50 degrees Reference value 1 100 degree Reference value 2 150 degrees Reference value 3 200 degrees Reference value 4 250 degrees Reference value 5 300 degrees Reference value 6 ... ...

When determining the first screen eye distance reference value, the microprocessor 37 can determine the distance between the current first display screen 312 and the left eye reference position, that is, the current first screen eye distance according to the current position of the first display screen 312, so as to determine the current first screen eye distance according to the first screen eye distance. A difference between the reference value of the screen distance and the current first screen distance determines the first rotation direction and the first rotation number of the first motor 331 .

It should be noted that, each time the head-mounted display 300 is used, the current position of the display screen in the head-mounted display 300 may be a preset position or a reserved position after the last adjustment, which is not specifically limited here.

For example, taking the first motor 331 as an example, if the reference value of the first screen-to-eye distance determined by the microprocessor 37 according to the visual acuity parameter of the left eye is 25 mm, and the current first screen-to-eye distance is 20 mm, then the first The display screen 312 is adjusted backward (in a direction away from the reference position of the left eye) by 5 mm, which can be recorded as the distance to be adjusted as +5 mm. The microprocessor 37 can calculate the first rotation number of the first motor 331 according to the 5 mm and the first pitch of the first rotating shaft 332 . The first number of rotations may specifically be the quotient of 5 mm and the first pitch. If the reference value of the first screen-to-eye distance determined by the microprocessor 37 according to the visual acuity parameter of the left eye is 25 mm, and the current first screen-to-eye distance is 30 mm, it is necessary to move the first display screen 312 forward (closer to the reference position of the left eye). direction) to adjust 5mm, can be recorded as the distance to be adjusted is -5mm. In addition, the microprocessor 37 can adjust the position of the first display screen 312 forward or backward as required, and determine whether the first rotation direction of the first motor 331 is clockwise or counterclockwise. Specifically, the corresponding relationship between the moving direction of the first display screen 312 and the rotation direction of the first motor 331 is related to the helical direction of the threads of the first rotating drum 333 and the first rotating shaft 332 . Similarly, the microprocessor 37 can also determine the second rotational direction and the second rotation of the second motor 334 .

In addition, in a possible implementation manner, the memory 36 may also store a preset second comparison table, where the second comparison table includes the correspondence between the distance to be adjusted on the display screen, the rotation direction of the motor and the number of rotations . After determining the distance to be adjusted, the microprocessor 37 can determine the rotation direction and the number of rotations of the motor by looking up the second comparison table.

After the microprocessor 37 determines the first rotation direction and the first rotation number of the first motor 331, the first adjustment member 33 may perform the above-mentioned first adjustment operation, so that the adjusted position of the first display screen 312 is the same as the left one. The distance of the eye reference position is equal to the first screen eye distance reference value. After the microprocessor 37 determines the second rotation direction and the second rotation number of the second motor 334, the first adjustment member 33 can perform the above-mentioned second adjustment operation, so that the adjusted position of the second display screen 322 is the same as the left one. The distance of the eye reference position is equal to the second screen eye distance reference value.

In this possible implementation, the HMD can determine the reference value of the screen-to-eye distance according to the accurate vision parameters input by the user, so as to determine the rotation direction and the number of rotations of the motor, and then adjust the position of the display screen to prevent vision defects. of users are able to observe clear images on the adjusted display.

In a second possible implementation manner, the head-mounted display 300 may further include a memory 36, and the visual acuity information stored in the memory 36 includes the visual acuity parameter of the left eye and/or the visual acuity parameter of the right eye corresponding to the identification information of the user. In this case, the HMD 300 can determine the reference value of the screen-to-eye distance according to the accurate vision parameters stored in the memory 36 corresponding to the user's identification information, thereby determining the rotation direction and the number of turns of the motor, and then adjusting the display screen position so that visually impaired users can observe clear images on the adjusted display.

In another embodiment, the vision information detected by the vision input component 35 or the vision information stored in the memory 36 includes the value of the first screen distance and the value of the second screen distance. In this possible implementation manner, the head-mounted display can determine the reference value of the screen-to-eye distance according to the accurate screen-to-eye distance value input by the user, so as to determine the rotation direction and the number of rotations of the motor, and then adjust the position of the display screen so that the Visually impaired users can observe clear images on the adjusted display.

In particular, the above-mentioned first possible implementation manner may be applicable to a scenario in which a user uses the head-mounted display 300 for the first time. In this scenario, vision information corresponding to the user's identification information is not stored in the memory 36 , and the user needs to input the vision parameters of the left eye and/or the vision parameters of the right eye through the vision input component 35 . In this case, if the user does not input the vision parameter, the head display 300 defaults that the user's vision is normal, and the vision parameter is the preset normal vision parameter. Other possible implementation manners may be applicable to scenarios where the user is not using the head-mounted display 300 for the first time. In this scenario, vision information corresponding to the user's identification information may be stored in the memory 36, so that when the user uses the head-mounted display 300 next time, the user can make adjustments more efficiently according to the vision information in the memory 36 without The user is required to input the vision information again.

Further, when the vision information detected by the above-mentioned vision component 35 or the vision information stored in the memory 36 includes the interpupillary distance parameter, the microprocessor 37 can also be used to control the second adjustment member 34 to perform an adjustment operation according to the vision information, specifically including: The microprocessor 37 determines the third rotation direction and the third rotation number of the third motor 343 according to the interpupillary distance parameter. The second adjustment member 34 is configured to perform the above-mentioned third adjustment operation according to the third rotation direction and the third rotation number of the third motor 343, so that the adjusted distance between the first eyepiece and the second eyepiece is equal to the pupil distance parameter.

The method by which the microprocessor 37 determines the third rotation direction and the third rotation number of the third motor 343 is similar to the method for the microprocessor 37 to determine the first rotation direction and the first rotation number of the first motor 331, and will not be repeated here. . The difference between the interpupillary distance parameter and the current eyepiece distance may be similar to the above-mentioned distance to be adjusted.

It can be seen that the HMD provided by the embodiment of the present application can determine the rotation direction and the number of rotations of the motor according to the accurate interpupillary distance parameter input by the user, or the accurate interpupillary distance parameter stored in the memory and corresponding to the user's identification information, Further, the positions of the two eyepieces are adjusted so that the adjusted positions of the eyepieces can be adapted to the pupil distance of the current user, thereby improving the user's visual experience.

Further, the head display 300 provided in this embodiment of the present application may further include an identification input component 39 for inputting identification information of the user.

The user identification information can be used to uniquely identify a user. Exemplarily, the identification information of the user may include at least one of character information, voice information, fingerprint information, iris information and facial information corresponding to the user. When the user's identification information is character information, the identification input component 39 may specifically be a touch panel, an input panel with buttons, etc.; when the user's identification information is voice information, the identification data component may specifically be a microphone; When the information is fingerprint information, the identification input component 39 can specifically be a fingerprint identification component; when the identification information of the user is iris information, the identification input component 39 can be an iris identification component, and when the identification information of the user is the facial recognition information, the identification input Component 39 may be a facial recognition component. Wherein, the iris recognition component and the face recognition component may specifically include a camera.

In the above-mentioned second possible implementation manner, when the head-mounted display 300 detects the identification information of the user through the identification input component 39, it can execute the execution according to the vision information according to the vision information stored in the memory 36 that matches the identification information of the user. Adjustment action.

Furthermore, in this embodiment of the present application, when the user starts to use the head-mounted display 300, for example, when the head-mounted display 300 is turned on, the head-mounted display 300 may remind the user to input identification information through a visual prompt and/or an auditory prompt. Exemplarily, the head-mounted display 300 may prompt the user "please input identification information" by voice. Or, exemplarily, referring to FIG. 12 , when the HMD 300 includes the touch panel 40 , the HMD 300 may prompt the user to “please input identification information” through the touch panel 40 .

Further, after adjusting the position of the display screen/the distance between the eyepieces, the head-mounted display 300 can also trigger prompt information to prompt the user that the position of the display screen/the distance between the eyepieces has been adjusted. The prompt information here may include visual prompts and/or auditory prompts. Exemplary or other types of prompt information are not specifically limited here.

Exemplarily, referring to FIG. 13 , after adjusting the position of the display screen (eg, the first display screen 312 ), the head-mounted display 300 may display visual prompt information “the position of the display screen has been adjusted” and “the adjustment is completed” on the display screen. or characters such as "ok". Exemplarily, referring to FIG. 14 , after adjusting the distance between the eyepieces, the head-mounted display 300 may display a visual prompt message "the distance between the eyepieces has been adjusted" on at least one display screen. Exemplarily, after adjusting the position of the display screen, the head-mounted display 300 may display the actual distance between the position of the adjusted display screen and the position of the human eye on the display screen. Exemplarily, after adjusting the distance between the eyepieces, the head-mounted display 300 may display the adjusted distance between the eyepieces on at least one display screen. Exemplarily, after adjusting the position of the display screen/the distance between the eyepieces, the HMD 300 may issue a voice prompt of "adjustment complete". For example, referring to FIG. 15 , after adjusting the position of the first display screen 312 , the head-mounted display 300 may issue a voice prompt of “the position of the first display screen has been adjusted”. Exemplarily, after adjusting the position of the display screen/the distance between the eyepieces, the head-mounted display 300 may issue a "beep" sound prompt. Exemplarily, after adjusting the position of the display screen/the distance between the eyepieces, the head-mounted display 300 may simultaneously display a prompt message "adjustment complete" on the display screen, and emit a "beep" sound. Exemplarily, after adjusting the position of the display screen/the distance between the eyepieces, the head-mounted display 300 may use vibration to prompt the user that the position of the display screen/the distance between the eyepieces has been adjusted. In addition, there may also be other possible prompting manners, which are not listed here one by one.

Further, after the user wears the head-mounted display 300, the actual position of the human eye may be slightly different from the reference position of the human eye, or the user's vision parameters may be slightly changed due to different wearing tightness, individual differences and other reasons. After the HMD 300 adjusts the position of the display screen according to the user's accurate vision information, the user may observe that the image on the display screen may not be particularly clear. At this time, the user can further fine-tune the position of the display screen by triggering the indication information. .

In a possible implementation, the head-mounted display 300 provided in this embodiment of the present application may further include a wearing detection part 310 and an indication input part 38 . The wearing detection part 310 can be used to detect whether the terminal 30 has been worn by the user. The instruction input component 38 may be used to detect the first instruction information input by the user for instructing to adjust the vision parameter of the left eye and/or the vision parameter of the right eye when the wearing detection component 310 detects that the terminal 30 has been worn by the user.

The microprocessor 37 can also be used to, according to the first indication information, determine the first adjustment value and/or the second adjustment value, where the first adjustment value is the adjustment value of the first screen distance, and the second adjustment value is the first adjustment value. The adjustment value of the second screen eye distance. And the fourth rotation direction and the fourth rotation number of the first motor 331 are determined according to the first adjustment value, and/or the fifth rotation direction and the fifth rotation number of the second motor 334 are determined according to the second adjustment value.

The first adjustment member 33 can also be used to adjust the position of the first display screen 312 according to the fourth rotation direction and the fourth rotation number of the first motor 331 , and/or according to the fifth rotation direction of the second motor 334 and In the fifth rotation, the position of the second display screen 322 is adjusted.

The adjustment range of the visual acuity parameter indicated by the user through the first indication information may be small. Specifically, the instruction input unit 38 may include at least one of a voice instruction input unit and a posture instruction input unit. The voice indication input component may specifically include a microphone for detecting the user's voice indication; the posture indication input component may specifically include a camera for detecting the user's posture indication. The posture input component here can detect posture indication information used by the user to instruct to adjust the visual acuity parameter of the left eye and/or the visual parameter of the right eye, such as user eye activity information and user head activity information. In addition, the instruction input component 38 may specifically include various sensors for detecting the user's instruction information.

Exemplarily, referring to FIG. 16 , the user can instruct the left eye myopia to increase by 1 degree, the right eye hyperopia to decrease by 3 degrees, and so on. Or, exemplarily, the memory 36 may also store a preset adjustment step size. For example, the visual acuity parameter is 1 degree, and the user can voice instruct to increase the degree of myopia of the left eye, which is equivalent to instructing to increase the degree of myopia of the left eye by 1 degree. Or, exemplarily, the user can turn the head to the left to indicate that the vision parameter of the left eye needs to be adjusted, and turn the head upward to indicate that the vision parameter of the user is increased; the user can turn the head to the right to Indicates that the vision parameters of the right eye need to be adjusted, and the head is turned downward to indicate that the vision parameters of the user are adjusted down. Or, exemplarily, the user can move the hand to the left to indicate that the visual acuity parameter of the left eye needs to be adjusted. Referring to FIG. 17 , pointing up the hand indicates that the visual parameter of the left eye needs to be adjusted; the user can move the hand to the right to adjust the visual acuity parameter of the left eye. Indicates that the visual acuity parameter of the right eye needs to be adjusted, see Figure 18, and the hand pointing down indicates that the visual acuity parameter of the right eye needs to be adjusted down. Or, exemplarily, the user can also trigger the first indication information by combining voice and posture. For example, the user can voice instruct the left eye and turn the head upward to instruct to increase the vision parameter of the left eye in a preset step.

The microprocessor 37 can determine the adjusted vision parameter according to the adjustment value of the vision parameter indicated by the above-mentioned first indication information, and determine the screen-eye distance according to the adjusted vision parameter, Expression 1 and the actual value of the current screen-eye distance. adjustment value.

Alternatively, the memory 36 may also store a second comparison table similar to Table 1, which is used to represent the corresponding relationship between the adjustment value of the vision parameter and the adjustment value of the screen-to-eye distance. The microprocessor 37 can determine the adjustment value of the screen-to-eye distance corresponding to the adjustment value of the vision parameter by looking up Table 2 according to the adjustment value of the vision parameter indicated by the first indication information. Illustratively, taking myopia as an example, the second comparison table may refer to the following Table 2 for details. The numerical values of the adjustment values of the visual acuity parameters in Table 2 are small.

Table 2

Myopia parameter adjustment value Screen distance adjustment value ... ... -1.5 degrees Adjustment value 1 -1 degree Adjustment value 2 -0.5 degrees Adjustment value 3 0.5 degrees Adjustment value 4 1 degree Adjustment value 5 1.5 degrees Adjustment value 6 ... ...

Among them, the adjustment value of the myopia parameter in Table 2 can be divided into positive and negative points, for example, it is positive when it increases, and negative when it decreases. Correspondingly, the adjustment value can also be divided into positive and negative. For example, when the adjustment value of the myopia parameter is positive, it means that the myopia parameter increases. At this time, the adjustment value of the screen-to-eye distance can be negative, which means that the screen-to-eye distance needs to be reduced, and the display screen needs to move toward the direction of the human eye; when the myopia parameter When the adjustment value is negative, it means that the myopia parameter is reduced. At this time, the adjustment value of the screen-to-eye distance can be positive, which means that the screen-to-eye distance needs to be increased, and the display screen needs to move away from the human eye.

It is worth noting that the above table 2 is described with myopia as an example, and the case of hyperopia is similar to myopia, and will not be repeated here.

The adjustment value of the screen distance can be similar to the above-mentioned distance to be adjusted. Similar to the method of determining the first rotation direction and the first number of rotations according to the above-mentioned distance to be adjusted, the microprocessor 37 can adjust the first screen distance according to The value determines the fourth rotation direction and the fourth rotation number, and determines the fifth rotation direction and the fifth rotation number according to the adjustment value of the second screen distance, so as to fine-tune the positions of the first display screen 312 and the second display screen 322, The specific process will not be repeated here.

In another possible implementation, the instruction input part 38 may also be used to detect the second instruction information of the user when the wearing detection part 310 detects that the terminal 30 has been worn by the user, where the second instruction information is used to instruct the increase Increase or decrease the first screen distance and/or the second screen distance, or the second indication information is used to instruct to adjust the position of the first display screen 312 and/or the second display screen 322 forward or backward. That is, the second indication information is used to directly indicate the position of the display screen.

The second indication information may specifically be voice information and/or posture information. Exemplarily, for the second indication information, the distance between the eyes of the first screen can be increased by 2 mm through voice, or the position of the first display screen 312 can be moved farther by 2 mm. For another example, the user may turn his head to the right to indicate adjusting the second display screen 322, and turning his head upward indicates to increase the second screen-to-eye distance, or to adjust backward according to a preset step length (for example, 0.5mm). The position of the second display screen 322 . For another example, the user can turn the head to the right to indicate adjusting the second display screen 322, move the hand forward to indicate that the second screen distance is reduced, or move the hand backward to indicate that the second screen is enlarged. distance.

The microprocessor 37 can also be used to determine the sixth rotation direction and the sixth rotation number of the first motor 331 according to the second instruction information, and/or determine the seventh rotation direction and the sixth rotation number of the second motor 334 according to the second instruction information. Seventh number of turns. The first adjustment member 33 can also be used to adjust the position of the first display screen 312 according to the sixth rotation direction and the sixth rotation number of the first motor 331 , and/or according to the seventh rotation direction of the second motor 334 and The seventh rotation is to adjust the position of the second display screen 322 .

That is to say, the microprocessor 37 can determine the sixth rotation direction and the sixth rotation number according to the adjustment value of the first screen distance indicated by the second instruction information, and then use the first motor 331 to fine-tune the adjustment of the first display screen 312 Or, the microprocessor 37 can determine the seventh rotation direction and the seventh rotation number according to the adjustment value of the second screen distance indicated by the second instruction information, and then fine-tune the second display screen 322 through the second motor 334. Location.

It can be seen that after the user wears the head-mounted display 300, if the image of the display screen is not very clear, the user can also input the first instruction information by means of voice or posture through the instruction input component 38, and fine-tune the vision parameters, so as to adjust the display. Adjust the position of the screen.

Therefore, the head display 300 provided by the embodiment of the present application can adjust the position of the display screen according to the accurate vision information input by the user or stored in the memory 36 before the user wears it; The position of the display screen is fine-tuned by the indication information triggered by the method, so that the user can observe a clearer image through the adjusted display screen.

Compared with the manual adjustment of the focal length in the prior art, the head display 300 provided by the embodiment of the present application not only does not affect the user's field of view, but also does not require the user to perform manual adjustment when the user's eyesight is blocked after wearing, so it does not need to be adjusted. It will be affected by the obstruction of vision, and the adjustment method is more convenient, so it can improve the user's experience.

In the prior art, there is also a method of directly adjusting the focal length through voice, which requires repeated adjustment of the position of the lens to make the image clearer, the adjustment process is long, and the adjustment speed is slow. The head display 300 provided by the embodiment of the present application can firstly adjust the position of the display screen roughly according to the accurate vision parameters input by the user, so that the display screen reaches a relatively accurate position, so that the image of the display screen is clearer; The user can fine-tune the position of the display screen through the indication information triggered by voice, posture, etc., so that the image of the adjusted display screen can be made clearer, and the adjustment process is simple and fast, which can further improve the user experience.

Further, similar to fine-tuning the position of the display screen, the head-mounted display 300 can also fine-tune the distance between the eyepieces.

Specifically, the instruction input unit 38 can also be used to detect third instruction information of the user when the wearing detection unit 310 detects that the terminal 30 has been worn by the user, and the third instruction information is used to instruct to increase or decrease the interpupillary distance parameter or eyepiece spacing. The microprocessor 37 may also be used to determine the eighth rotation direction and the eighth rotation number of the third motor 343 according to the third instruction information. The second adjustment member 34 is also used for adjusting the distance between the eyepieces according to the eighth rotation direction and the eighth rotation number of the third motor 343 . The third indication information may specifically be voice and/or posture information. Exemplarily, referring to FIG. 19 , the user may indicate that the distance between the eyepieces needs to be reduced by a pinch gesture. Exemplarily, the user can instruct "close to both eyepieces" by voice.

Wherein, the increased or decreased interpupillary distance parameter or eyepiece distance indicated by the third indication information may be similar to the above-mentioned distance to be adjusted, and the microprocessor 37 is used to determine the eighth rotation direction of the third motor 343 according to the third indication information For the process of the eighth number of rotations, refer to the process in which the microprocessor 37 determines the first rotation direction and the first number of rotations of the first motor 331 according to the distance to be adjusted, which will not be repeated here.

In this way, the head display 300 provided by the embodiment of the present application can adjust the eyepiece distance according to the accurate interpupillary distance parameter input by the user before the user wears it; and after the user wears it, it can be triggered by the user through voice, posture and other non-manual operation methods. The instruction information fine-tunes the eyepiece distance, so that the adjusted eyepiece distance better matches the actual interpupillary distance of different users, making the user feel more comfortable after wearing, and improving the user's visual experience.

In addition, after fine-tuning the position of the display screen or the distance between the eyepieces, the head-mounted display 300 can also trigger prompt information, which will not be repeated here.

Specifically, the instruction input component 38 and the vision input component 35 in the embodiment of the present application may be the same component or may be different.

In addition, when the user uses the head-mounted display 300, after the user observes a clear image, the user can also trigger the head-mounted display 300 to display the currently adjusted value of the screen-to-eye distance and the value of the eyepiece distance through the display screen.

It is worth noting that, in the embodiment of the present application, the visual acuity parameter stored in the memory 36 may be the visual acuity parameter adjusted by the head display 300 according to the first indication information; the value of the interpupillary distance stored in the memory 36 may be based on the above-mentioned 3 indicates the value of the adjusted interpupillary distance. In this way, when the head-mounted display 300 adjusts the position of the display screen or the distance between the eyepieces according to the vision information stored in the memory, the adjustment can be performed more accurately and efficiently according to the vision information adjusted in the last use.

For example, the visual acuity parameter stored in the memory 36 may specifically be the visual acuity parameter adjusted by the user through voice or posture indication when the user used it last time. For example, if the myopia parameter of the left eye inputted by the user through the visual acuity input part 35 is 100 degrees, and then through the instruction input part 38 to instruct to increase the myopia parameter of the left eye by 3 degrees, the The visual acuity parameter is myopia of 103 degrees. In this way, the user can directly, accurately and efficiently adjust the position of the display screen and the distance between the eyepieces according to the vision parameters stored in the memory 36 corresponding to the user's identification information when using it next time, without requiring the user to input the vision parameters again.

Alternatively, in the embodiment of the present application, the visual acuity parameter stored in the memory 36 may also be the visual acuity parameter input by the user detected by the visual acuity input component 35; the value of the screen-to-eye distance stored in the memory 36 may also be the screen-to-eye distance before fine-tuning The value of the interpupillary distance stored in the memory 36 may also be the interpupillary distance parameter input by the user detected by the visual acuity input unit 35 .

In addition, in the embodiment of the present application, in a possible situation, after the user finishes using this time, the HMD 300 can restore the display screen position and the eyepiece distance to preset values. In this case, when the user uses it again, the head-mounted display 300 can adjust the position of the display screen and the distance between the eyepieces according to the adjustment information corresponding to the identification information of the user.

In another possible situation, after the user finishes using this time, the HMD 300 may retain the position of the display screen and the distance between the eyepieces after this adjustment. In this case, if other users have not used the head-mounted display 300 before the user uses it again, the position of the display screen in the head-mounted display 300 and the distance between the eyepieces are still the values adjusted by the user when the user used it last time. When using it again, there is no need to adjust the position of the display screen and the distance between the eyepieces, and a clear image can be directly observed. If other users have used the head-mounted display 300 before the user uses it again, the position of the display screen in the head-mounted display 300 and the distance between the eyepieces may have changed. The vision information corresponding to the user's identification information can accurately and efficiently adjust the position of the display screen and the distance between the eyepieces.

Another embodiment of the present application further provides a terminal 60, see FIG. 20, including: a vision input component 61 for detecting vision information input by a user, where the vision information includes vision parameters of the left eye and/or vision parameters of the right eye . The memory 62 is used for storing vision information corresponding to the identification information of the user. The microprocessor 63 is used to determine the reference value of the screen-to-eye distance according to the vision information detected by the vision input component 61, or the vision information stored in the memory 62, and the reference value of the screen-to-eye distance includes the first screen-to-eye distance reference value and/or the second screen-to-eye distance reference value. The screen eye distance reference value, the first screen eye distance is the distance between the first display screen and the reference position of the left eye, and the second screen eye distance is the distance between the second display screen and the right eye reference position; and according to the screen eye distance From the reference value, adjust the position of the display screen so that the distance between the adjusted position of the first display screen and the left eye reference position is equal to the first screen eye distance reference value, or make the adjusted position of the second display screen The distance from the right eye reference position is equal to the second screen eye distance reference value.

This embodiment of the present application further provides a method for position adjustment, which can be applied to the above-mentioned terminal 30 shown in FIG. 4-FIG. 19 and the terminal 60 shown in FIG. 20 . Referring to FIG. 21 , the method may include:

101. The terminal determines a reference value of the screen-to-eye distance according to the vision information of the user, where the vision information includes vision information input by the user, or vision information stored in the terminal and corresponding to the identification information of the user.

Wherein, the vision information includes the vision parameter of the left eye and/or the vision parameter of the right eye, the reference value of the screen distance includes the first screen eye distance reference value and/or the second screen eye distance reference value, and the first screen eye distance is the first screen eye distance reference value. The distance between a display screen and the reference position of the left eye, and the second screen eye distance is the distance between the second display screen and the reference position of the right eye.

102. The terminal adjusts the position of the display screen according to the screen-to-eye distance reference value, so that the distance between the adjusted position of the first display screen and the left-eye reference position is equal to the first screen-to-eye distance reference value, or the adjusted The distance between the position of the second display screen and the right eye reference position is equal to the second screen eye distance reference value.

In this way, for a user with vision impairment, the method provided by the embodiment of the present application can adjust the first display screen corresponding to the left eye respectively according to the accurate vision information input by the user or the stored vision information corresponding to the user. The position of the second display screen corresponding to the right eye can be clearly imaged, and it will not affect the field of view of the user as in the prior art, so that the user experience can be improved. In addition, in the method provided by the embodiment of the present application, the position of the display screen can be adjusted through the rotation of the motor, and the user does not need to manually adjust the position of the display screen, so the adjustment method is more convenient.

Further, the visual acuity information may further include an interpupillary distance parameter, where the interpupillary distance parameter is a reference value of the eyepiece distance, and the eyepiece distance is the distance between the first eyepiece and the second eyepiece. The first eyepiece includes a first display screen, and the second eyepiece includes a second display screen. Referring to FIG. 22 , the method may further include:

103. The terminal adjusts the eyepiece distance according to the interpupillary distance parameter, so that the adjusted eyepiece distance is equal to the interpupillary distance parameter.

In this way, in the method provided by the embodiments of the present application, the distance between the mirrors can be adjusted according to the interpupillary distance parameter, so as to adapt to the interpupillary distance of different users and improve the user's visual experience. Moreover, since manual adjustment is not required, the adjustment method is more convenient.

Further, the method can also include:

104. After the terminal is worn by the user, the terminal receives the indication information of the user.

105. In response to the indication information, the terminal adjusts at least one of the position of the first display screen, the position of the second display, and the distance between the eyepieces.

In this way, before the terminal is worn by the user, the position of the display screen or the distance between the eyepieces can be roughly adjusted according to the vision information, and after the terminal is worn by the user, the position of the display screen or the distance between the eyepieces can be fine-tuned, thereby making the image clearer. It can improve the user experience more.

Another embodiment of the present application further provides a terminal 70. Referring to FIG. 23, the terminal 70 may include: a processor 71, a memory 72, a bus 73, and a communication interface 74; the memory 72 is used for storing computer execution instructions, and the processor 71 Connected to the memory 72 through the bus 73, when the terminal 70 is running, the processor 71 executes the computer execution instructions stored in the memory 72, so that the terminal 70 executes the above scheduling method.

Although the application is described herein in conjunction with various embodiments, in practicing the claimed application, those skilled in the art can understand and implement the disclosure by reviewing the drawings, the disclosure, and the appended claims Other variations of the embodiment. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "an" does not exclude a plurality. A single processor or other unit may fulfill the functions of several items recited in the claims. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that these measures cannot be combined to advantage.

Although the application has been described in conjunction with specific features and embodiments thereof, it will be apparent that various modifications and combinations can be made therein without departing from the spirit and scope of the application. Accordingly, this specification and drawings are merely exemplary illustrations of the application as defined by the appended claims, and are deemed to cover any and all modifications, variations, combinations or equivalents within the scope of this application. Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims (22)

1. A terminal (30), characterized in that the terminal comprises a wearable device, and the terminal comprises a first eyepiece (31), a second eyepiece (32) and a first adjustment member (33); Wherein, the first eyepiece (31) includes a first lens barrel (311) and a first display screen (312) arranged in the first lens barrel (311), the first display screen (312) and the the first lens barrel (311) is slidably connected; The second eyepiece (32) includes a second lens barrel (321) and a second display screen (322) arranged in the second lens barrel (321), and the second display screen (322) is connected to the second display screen (322). The second lens barrel (321) is slidably connected; The first adjusting member (33) includes a first motor (331), a first rotating shaft (332) and a first rotating drum (333) arranged perpendicular to the first display screen (312), the first rotating The drum (333) is connected with the first motor (331), one end of the first rotating shaft (332) is screwed with the first rotating drum (333), and the other end of the first rotating shaft (332) fixedly connected with the first display screen (312); The first adjusting member (33) further comprises a second motor (334), a second rotating shaft (335), and a second rotating drum (336) vertically arranged with the second display screen (322). The rotating drum (336) is connected with the second motor (334), one end of the second rotating shaft (335) is screwed with the second rotating drum (336), and the other end of the second rotating shaft (335) is threaded. One end is fixedly connected to the second display screen (322); The terminal (30) further includes a microprocessor (37); the microprocessor (37) determines a reference value of the screen-to-eye distance according to the vision information, where the vision information includes at least one of a vision parameter and an interpupillary distance parameter. The vision parameters include left eye vision parameters and/or right eye vision parameters, and the screen eye distance reference value includes a first screen eye distance reference value and/or a second screen eye distance reference value, and the first screen eye distance is the first screen eye distance. the distance between the display screen and the left eye reference position, the second screen eye distance is the distance between the second display screen and the right eye reference position; and the first motor is determined according to the first screen eye distance reference value (331) the first rotation direction and the first number of rotations, and/or determine the second rotation direction and the second number of rotations of the second motor (334) according to the second screen distance reference value; the microprocessing A device (37) is used to control the first adjustment member (33) according to the vision information to adjust the first adjustment member (33) according to the first rotation direction and the first rotation number of the first motor (331). A display screen (312) is positioned so that the distance between the adjusted position of the first display screen (312) and the left eye reference position is equal to the first screen eye distance reference value; and/or all The microprocessor (37) is configured to control the first adjustment member (33) to adjust according to the second rotation direction and the second rotation number of the second motor (334) according to the vision information the position of the second display screen (322), so that the distance between the adjusted position of the second display screen (322) and the right eye reference position is equal to the second screen eye distance reference value; Wherein, the microprocessor (37) is configured to determine the first screen-to-eye distance reference value and/or the second screen-to-eye distance reference value according to the vision information including: Determine the first screen eye distance reference value according to the visual acuity parameter of the left eye and Expression 1; Determine the second screen eye distance reference value according to the visual acuity parameter of the right eye and the expression 1; The expression one is: u _i =1/(D _i -1/k) Wherein, k represents a constant, when _ui represents the reference value of the first screen distance, D _i represents the power of the left eye; when _ui represents the second reference value of the screen distance, D _i represents the right eye focal power. 2. The terminal (30) according to claim 1, wherein the terminal (30) further comprises a second adjusting member (34), the second adjusting member (34) comprising a third motor (343) , a transmission assembly (344) and a screw assembly (345), the screw assembly (345) is connected with the first lens barrel (311) and the second lens barrel (321) through threads; The third motor (343) drives the screw assembly (345) to rotate through the transmission assembly (344), so that the first lens barrel (311) and the second lens barrel (321) approach each other or away from each other. 3. The terminal (30) according to claim 2, wherein the transmission assembly (344) comprises an output shaft (41) and a turbine (42) of the third motor (343), the output shaft (42) (41) is a worm, one end of the turbine (42) is matched with the worm, and the other end of the turbine (42) is connected with the screw assembly (345). 4. The terminal (30) according to claim 3, wherein the screw assembly (345) comprises a first screw (51), a second screw (52) and a third screw (53), and the turbine One end of (42) meshes with the thread on the surface of the first screw (51), the two ends of the first screw (51) are respectively provided with gears, the second screw (52) and the third screw ( 53) are respectively provided with gears at one end, the two ends of the first screw (51) are respectively meshed with the second screw (52) and the third screw (53) through gears, and the second screw (52) ) and the end of the third screw (53) without gears are respectively screwed with the first lens barrel (311) and the second lens barrel (321). 5. The terminal (30) according to claim 2, wherein the screw assembly (345) comprises a fourth screw (54) and a fifth screw (55), the fourth screw (54) and the One end of the fifth screw (55) is screwed with the first lens barrel (311) and the second lens barrel (321) respectively, and the transmission assembly (344) includes the third motor (343) Output shaft (41), connecting rod (43), first bevel gear (44), second bevel gear (45), third bevel gear (46), fourth bevel gear (47) and fifth bevel gear (48) ), the first bevel gear (44) is sleeved on the output shaft (41), the second bevel gear (45) and the third bevel gear (46) are arranged on the connecting rod (43) ), the first bevel gear (44) meshes with the second bevel gear (45), and the fourth bevel gear (47) is connected to the other end of the fourth screw (54), so The fifth bevel gear (48) is connected with the other end of the fifth screw (55), and the third bevel gear (46) is respectively connected with the fourth bevel gear (47) and the fifth bevel gear ( 48) Engage. 6. The terminal (30) according to any one of claims 1-5, characterized in that, at least one first chute (313) is provided on the inner wall of the first lens barrel (311), and the first At least one second chute (323) is provided on the inner wall of the second lens barrel (321); The first display screen (312) is slidably connected to the first lens barrel (311) through the at least one first sliding groove (313), and the second display screen (322) is slidably connected to the first lens barrel (311) through the at least one second display screen (322). The sliding groove (323) is slidably connected with the second lens barrel (321). 7. The terminal (30) according to claim 6, characterized in that, the terminal (30) further comprises a visual input component (35); The vision input component (35) is used for detecting the vision information input by the user. 8. The terminal (30) according to claim 7, characterized in that, the terminal (30) further comprises a memory (36) for storing the vision information corresponding to the identification information of the user. 9. The terminal (30) according to claim 7, wherein the microprocessor (37) is configured to control the second adjustment member (34) to perform an adjustment operation according to the vision information, specifically comprising: The microprocessor (37) determines the third rotation direction and the third rotation number of the third motor (343) according to the interpupillary distance parameter; The second adjusting member (34) is used for adjusting the first eyepiece (31) and the The distance between the two eyepieces (32) is such that the adjusted distance between the first eyepiece (31) and the second eyepiece (32) is equal to the interpupillary distance parameter. 10. The terminal (30) according to claim 7, wherein the visual input component 35 comprises at least one of a voice input unit and a manual input unit. 11. The terminal (30) according to claim 7, wherein the terminal (30) further comprises: A wearing detection component (310) is used to detect whether the terminal (30) has been worn by the user. 12. The terminal (30) according to claim 11, wherein the terminal (30) further comprises: An instruction input unit (38) is configured to detect the first instruction information input by the user when the wearing detection unit (310) detects that the terminal (30) has been worn by the user, the first instruction information using To instruct to adjust the visual acuity parameters of the left eye and/or the visual parameters of the right eye; The microprocessor (37) is further configured to, according to the first indication information, determine an adjustment value of the first screen distance and/or an adjustment value of the second screen distance; The fourth rotation direction and the fourth rotation number of the first motor (331) are determined according to the adjustment value of the first screen distance, and/or the first screen distance is determined according to the adjustment value of the second screen distance. The fifth rotation direction and the fifth rotation number of the two motors (334); The first adjustment member (33) is also used for adjusting the position of the first display screen (312) according to the fourth rotation direction and the fourth rotation number of the first motor (331) , and/or adjust the position of the second display screen (322) according to the fifth rotation direction and the fifth rotation number of the second motor (334). 13. The terminal (30) according to claim 11, wherein the terminal (30) further comprises: An instruction input unit (38), configured to detect second instruction information of the user when the wearing detection unit (310) detects that the terminal (30) has been worn by the user, where the second instruction information is used for Instruct to increase or decrease the first screen distance and/or the second screen distance, or the second indication information is used to instruct the first display screen to be adjusted forward or backward (312) and/or the position of the second display screen (322); The microprocessor (37) is further configured to determine, according to the second indication information, a sixth rotation direction and a sixth rotation number of the first motor (331), and/or according to the second indication information determining the seventh rotation direction and the seventh rotation number of the second motor (334); The first adjustment member (33) is also used for adjusting the position of the first display screen (312) according to the sixth rotation direction and the sixth rotation number of the first motor (331) , and/or adjust the position of the second display screen (322) according to the seventh rotation direction and the seventh rotation number of the second motor (334). 14. The terminal (30) according to claim 11, wherein the terminal (30) further comprises: An instruction input unit (38), configured to detect third instruction information of the user when the wearing detection unit (310) detects that the terminal (30) has been worn by the user, where the third instruction information is used for instructing to increase or decrease said interpupillary distance parameter or eyepiece distance; a microprocessor (37), configured to determine the eighth rotation direction and the eighth rotation number of the third motor (343) according to the third instruction information; The second adjustment member (34) is also used for adjusting the distance between the eyepieces according to the eighth rotation direction and the eighth rotation number of the third motor (343). 15. The terminal (30) according to any one of claims 12-14, characterized in that the indication input component (38) comprises at least one of a voice indication input component and a posture indication input component; Wherein, the voice indication input component includes a microphone, and the posture indication input component includes a camera. 16. The terminal (30) according to claim 15, characterized in that, the indication input part (38) is the same as the vision input part (35). 17. The terminal (30) according to claim 16, wherein the terminal (30) further comprises: An identification input component (39) is used for detecting identification information input by a user, where the identification information of the user includes at least one of character information, voice information, fingerprint information, iris information and face information corresponding to the user. 18. A terminal (60), characterized in that the terminal comprises a wearable device, and the terminal comprises: a vision input component (61) for detecting vision information input by a user, the vision information including vision parameters of the left eye and/or vision parameters of the right eye; a memory (62) for storing vision information corresponding to the identification information of the user; A microprocessor (63), configured to determine a screen-eye distance reference value according to the vision information detected by the vision input component (61) or the vision information stored in the memory (62), the screen-eye distance The distance reference value includes the first screen distance reference value and/or the second screen distance reference value, the first screen distance is the distance between the first display screen and the reference position of the left eye, and the second screen distance is the second distance. The distance between the display screen and the reference position of the right eye; The microprocessor (63) is further configured to determine the first rotation direction and the first rotation number of the first motor according to the first screen distance reference value, and/or according to the second screen distance reference value determining the second rotation direction and the second rotation number of the second motor; The microprocessor (63) is further configured to control the first adjustment member according to the vision information to adjust the first display screen according to the first rotation direction and the first rotation number of the first motor position, so that the distance between the adjusted position of the first display screen and the left eye reference position is equal to the first screen eye distance reference value; and/or the microprocessor (63) is used for According to the vision information, the first adjustment member is controlled to adjust the position of the second display screen according to the second rotation direction and the second rotation number of the second motor, so that the adjusted The distance between the position of the second display screen and the right eye reference position is equal to the second screen eye distance reference value; Wherein, the microprocessor (63) is configured to determine the screen-to-eye distance reference value according to the vision information detected by the vision input component (61), or the vision information stored in the memory (62), including: Determine the first screen eye distance reference value according to the visual acuity parameter of the left eye and Expression 1; Determine the second screen eye distance reference value according to the visual acuity parameter of the right eye and the expression 1; The expression one is: u _i =1/(D _i -1/k) Wherein, k represents a constant, when ui represents the reference value of the first screen distance, Di represents the power of the left eye; when ui represents the second reference value of the screen distance, Di represents the power of the right eye. 19. A method for position adjustment, wherein the method is applied to a wearable device, comprising: The terminal determines the screen-to-eye distance reference value according to the user's vision information, where the vision information includes vision information input by the user, or vision information stored in the terminal that corresponds to the user's identification information, where the vision information includes the left eye The visual acuity parameter and/or the visual acuity parameter of the right eye, the reference value of the screen distance includes the first screen distance reference value and/or the second screen eye distance reference value, and the first screen distance The distance between the eye reference positions, the second screen eye distance is the distance between the second display screen and the right eye reference position; and the first rotation direction and the first rotation direction of the first motor are determined according to the first screen eye distance reference value. a number of rotations, and/or determine the second rotation direction and second rotation number of the second motor according to the second screen distance reference value; control the first adjustment member according to the vision information according to the first motor Adjust the position of the first display screen so that the distance between the adjusted position of the first display screen and the reference position of the left eye is equal to the first screen distance reference value; and/or a microprocessor (37) for controlling the first adjustment member (33) according to the second motor (334) according to the vision information The direction of rotation and the number of second rotations, and the position of the second display screen (322) is adjusted so that the distance between the adjusted position of the second display screen (322) and the reference position of the right eye is equal to the reference value of the second screen eye distance; Wherein, determining the reference value of the screen-to-eye distance by the terminal according to the user's vision information includes: Determine the first screen eye distance reference value according to the visual acuity parameter of the left eye and Expression 1; Determine the second screen eye distance reference value according to the visual acuity parameter of the right eye and the expression 1; The expression one is: u _i =1/(D _i -1/k) Wherein, k represents a constant, when _ui represents the reference value of the first screen distance, D _i represents the power of the left eye; when _ui represents the second reference value of the screen distance, D _i represents the right eye focal power. 20. The position adjustment method according to claim 19, wherein the visual acuity information further comprises a pupillary distance parameter, the pupillary distance parameter is a reference value of the eyepiece distance, and the eyepiece distance is the first eyepiece and the second eyepiece distance. The distance between the eyepieces, the first eyepiece includes a first display screen, the second eyepiece includes a second display screen, and the method further includes: The terminal adjusts the eyepiece distance according to the interpupillary distance parameter, so that the adjusted eyepiece distance is equal to the interpupillary distance parameter. 21. The position adjustment method according to claim 19 or 20, wherein the method further comprises: After the terminal is worn by the user, the terminal receives the indication information of the user; In response to the indication information, the terminal adjusts at least one of the position of the first display screen, the position of the second display screen, and the distance between the eyepieces. 22. A terminal (70), characterized in that the terminal comprises a wearable device, and the terminal comprises: a processor (71) and a memory (72); the memory (72) is used for storing computer execution instructions, When the terminal (70) is running, the processor (71) executes the computer-executed instructions stored in the memory (72), so that the terminal (70) executes any one of claims 19-21 The described position adjustment method.

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