WO2015099215A1

WO2015099215A1 - Head-mounted display apparatus and method for operating same

Info

Publication number: WO2015099215A1
Application number: PCT/KR2013/012138
Authority: WO
Inventors: 김형준; 손종현; 조택일; 최은지
Original assignee: 엘지전자 주식회사
Priority date: 2013-12-24
Filing date: 2013-12-24
Publication date: 2015-07-02

Abstract

The present invention relates to a head-mounted display apparatus and a method for operating same. A method for operating a head-mounted display apparatus according to an embodiment of the present invention comprises the steps of: receiving an image having a first resolution; displaying a partial region of the first image having the first resolution in accordance with a second resolution display mode, the second resolution being lower than the first resolution; sensing a head movement of a user; displaying a different region of the image having the first resolution in accordance with the sensed movement of the user. Accordingly, the convenience of use for the users can be improved.

Description

Head mounted display device and its operation method

The present invention relates to a head mounted display device and a method of operating the same, and more particularly, to a head mounted display device and a method of operating the same that can improve user convenience.

The head mounted display device is a device that can be worn on the user's head to view an image. On the other hand, since the head mounted display device is worn on the head of the user, the means for receiving the user input is limited.

Accordingly, various studies for user input in the head mounted display device have been conducted.

An object of the present invention is to provide a head-mounted display device and its operation method which can improve user convenience.

According to another aspect of the present invention, there is provided a method of operating a head mounted display device, the method including receiving an image having a first resolution and displaying a second resolution display mode smaller than the first resolution. Displaying a partial region of the image, detecting a movement of the user's head, and displaying another partial region of the image having the first resolution according to the detected movement of the user's head.

On the other hand, the head-mounted display device according to an embodiment of the present invention for achieving the above object, the display for displaying a predetermined image, the lens unit for enlarging the image displayed on the display, the sensor for detecting the movement of the user's head And a control unit to receive an image having a first resolution, and to display a partial region of the image having the first resolution according to a second resolution display mode smaller than the first resolution, and according to the detected head movement of the user. And a processor for controlling to display another partial region of the resolution image.

According to an embodiment of the present invention, the head mounted display apparatus according to the second resolution display mode may display another region of the image having the first resolution according to a user's head movement while displaying a partial region of the image having the first resolution. Some areas can be displayed. As a result, it is possible to quickly reproduce and display the corresponding image without downscaling the high resolution image. Accordingly, user convenience may be increased.

In particular, the display image may be moved in response to the up, down, left, or right movement of the user's head, or the display image may be zoomed in or out in response to the front or back movement of the user's head. Can watch the desired video area.

On the other hand, in response to the user's eyes, the menu display position can be changed, the user's ease of use can be increased.

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

FIG. 2 is a rear view of the head mounted display of FIG. 1.

3 is a cross-sectional view of the head mounted display of FIG. 1.

4 is a simplified internal block diagram of the head mounted display device of FIG. 1.

5 is a flowchart illustrating a method of operating a head mounted display device according to an embodiment of the present invention.

6 to 16 are diagrams for explaining the operating method of FIG. 5.

Hereinafter, with reference to the drawings will be described the present invention in more detail.

The suffixes "module" and "unit" for components used in the following description are merely given in consideration of ease of preparation of the present specification, and do not impart any particular meaning or role by themselves. Therefore, the "module" and "unit" may be used interchangeably.

The head mounted display device described in the present specification is a head mounted display device which can be worn on a user's head and can display a predetermined image. In particular, a display for displaying an image and a lens unit for enlarging the displayed image may be provided so that a user may recognize the image displayed on the display as an enlarged image.

Hereinafter, a head mounted display device according to an embodiment of the present invention will be described.

1 is a front view of a head mounted display device according to an embodiment of the present invention, FIG. 2 is a rear view of the head mounted display device of FIG. 1, and FIG. 3 is a cross-sectional view of the head mounted display device of FIG. 1.

Referring to the drawing, the user 700 may wear the head mounted display device 100 on the head. As shown in FIG. 1, it is preferable to wear the eye covering and to block external light in order to improve immersion of the display image.

The user 700 wearing the head mounted display apparatus 100 can lie down or sit down and watch a reproduced image.

Meanwhile, as shown in FIG. 2, the head mounted display apparatus 100 includes

lens units

195L and 195R, and provides an image enlarged through the

lens units

195L and 195R to a user's eye.

3 shows an upper sectional view of the head mounted display device 100. The

lens units

195L and 195R of the head mounted display apparatus 100 are positioned at a predetermined interval from both

eyes

710L and 710R of the user 700, and the images displayed on the

displays

300L and 300R are respectively lenses. It is enlarged through the

portions

195L and 195R, and is incident on both

eyes

710L and 710R of the user. Accordingly, the user 700 may recognize the enlarged

images

300L and 300R as shown in the drawing. At this time, the enlarged

images

300L and 300R are virtual images.

Referring to the drawings, the head mounted display apparatus 100 includes a sensor unit 130, a communication module 135, a memory 140, an audio output unit 160, a processor 170, a display 180, and a power supply unit. 190, the driving unit 193 and the lens unit 195 may be provided.

The sensor unit 130 may detect motion information of the head mounted display apparatus 100, in particular, motion information of a user's head and generate a sensing signal.

For example, the sensor unit 130 may include at least one of a motion sensor (not shown), a proximity sensor (not shown), a pressure sensor (not shown), and the like.

A motion sensor (not shown) detects the position or movement of the head mounted display apparatus 100 using an acceleration sensor, a gyro sensor, or the like.

The acceleration sensor may include an acceleration sensor in the X-axis, Y-axis, and Z-axis directions. On the other hand, the gyro sensor is a sensor for measuring the angular velocity, it can detect the direction returned to the reference direction.

The proximity sensor (not shown) may detect the presence or absence of an object approaching the head mounted display apparatus 100 or an object present in the vicinity of the head mounted display apparatus 100 without mechanical contact.

The pressure sensor (not shown) may detect whether pressure is applied to the head mounted display apparatus 100, the magnitude of the pressure, and the like. For example, pressure by the user's hand can be detected.

The communication module 135 may provide an interface for communicating with an external device. To this end, the communication module 135 may include at least one of a mobile communication module (not shown), a wireless Internet module (not shown), a short range communication module (not shown), a GPS module (not shown), and the like. . For example, WiFi communication may be performed through a wireless Internet module (not shown), and Near Field Communication (NFC) communication may be performed through a short range communication module (not shown).

The communication module 135 may exchange data with a mobile terminal (not shown) or an external server (not shown). In detail, the communication module 135 may receive various data such as video content from the mobile terminal. Meanwhile, status information of the head mounted display apparatus 100 may be transmitted to the mobile terminal.

The communication module 135 may receive sight information of the user 700 from a mobile terminal (not shown) or an external server (not shown).

The memory 140 may store a program for processing or controlling the processor 170 in the head mounted display apparatus 100, or may perform a function for temporarily storing input or output data.

Meanwhile, the memory 140 may temporarily store content data received from an external device for a certain period of time.

The audio output unit 160 may output an audio signal. For example, an audio signal of content reproduced on the display 180 may be output. The audio output unit 160 may include a speaker, or may include an audio output terminal for outputting audio to the outside.

The processor 170 controls the overall operation of each unit in the head mounted display apparatus 100.

For example, the processor 170 reproduces the video content stored in the memory 140 or received through the communication module 1345 based on the user input, and displays the corresponding video signal and the audio signal, respectively, 180. ) And the audio output unit 160.

As another example, the processor 170 may control to perform a corresponding operation based on motion information of the head mounted display apparatus 100, in particular, motion information of a user's head, which is detected by the sensor unit 130. have.

In relation to an embodiment of the present invention, the processor 170 receives an image having a first resolution and controls to display a partial region of an image having a first resolution according to a second resolution display mode smaller than the first resolution. In response to the detected movement of the head of the user 700, the controller may display another partial region of the image having the first resolution.

For example, the processor 170 may control to display another partial region of the image having the first resolution in response to the up, down, left, or right movement of the head of the user 700.

As another example, the processor 170 may control to zoom in or zoom out a partial area of the first resolution to be displayed in response to the front or rear movement of the head of the user 700.

In the menu display mode, the processor 170 may control to display a menu in an area corresponding to the gaze of the user 700.

The processor 170 may change at least one of a frequency, a magnitude, or a phase of the output audio signal according to the detected movement of the head of the user 700.

The processor 170 may adjust the focusing of the image to be displayed based on the sight information of the user 700 received through the communication module 135.

Meanwhile, the processor 170 may vary an operation corresponding to the movement of the user 700 according to the type of content of the image displayed on the display 180.

Meanwhile, the processor 170 may control the processor 170 to vary the distance between the eyes of the user 700 and the lens unit 195.

The display 180 may display text or an image. In particular, the display 180 may display a predetermined image.

In the menu display mode, the display 180 may display a menu in an area corresponding to the gaze of the user 700.

The power supply unit 190 may supply power required for the operation of each component under the control of the processor 170.

The driver 193 may vary the distance between the user 700 's eyes and the lens unit 195 under the control of the processor 170. To this end, the driving unit 193 may include a lens unit moving member (not shown), such as a stepping motor. By the operation of the motor, the distance between the user 700 eyes and the lens unit 195 may be varied.

FIG. 5 is a flowchart illustrating a method of operating a head mounted display device according to an embodiment of the present invention, and FIGS. 6 to 16 are views referred to for explaining the method of FIG. 5.

First, the head mounted display apparatus 100 receives an image having a first resolution (S510).

The communication module 135 of the head mounted display apparatus 100 receives an image having a first resolution from an external device. Then, the received image having the first resolution is transmitted to the processor 170.

For example, the image having the first resolution may be a UD (Ultra Definition) image, a panorama image, a wide cinema image having a resolution of 21: 9, and the like.

On the other hand, when the display 180 in the head mounted display device 100 does not support UD image, panoramic image, and 21: 9 resolution image, the processor 170 receiving the image is displayed by scaling. Down scaling should be performed at (180) resolution. In such a case, a playback time delay factor may occur due to downscaling.

In the present invention, in order to solve this problem, the processor 170 outputs a partial region so that a partial region of the image having the first resolution is displayed on the display 180 without additional scaling.

For example, if the display 180 is capable of displaying a 1920x1080 HD image, the processor 170 does not downscale the UD image to an HD image when the image of the UD resolution of 3840X2160 is received. A partial image area may be output for the UD image corresponding to or less than the HD image area.

Next, the head mounted display apparatus 100 displays a partial region of the image having the first resolution according to the second resolution display mode smaller than the first resolution (S520).

The display 180 of the head mounted display apparatus 100 may display only a portion of an image of the first resolution output from the processor 170 in accordance with a displayable resolution.

As described above, when a partial region of the UD image is output from the processor 170, the display 180 may display only a partial region of the UD image. Accordingly, the user can watch only a portion of the input image.

FIG. 6 illustrates that the user 700 wears the head mounted display apparatus 100 to display an image 620 corresponding to a partial region of the image 610 having the first resolution. In this case, it can be seen that the horizontal size of the image 620 corresponding to the partial region is S1.

6 illustrates that an object 625 indicating a partial display mode or a second resolution display mode is displayed on the display 180 together with an image 620 corresponding to a partial region of an image having a first resolution. . As a result, the user can recognize that the video being watched is part of the entire video area.

Next, the head mounted display apparatus 100 detects the movement of the head of the user 700 (S530).

The sensor unit 130 may detect a movement of the head of the user 700. In detail, the acceleration sensor may detect acceleration in the X, Y, and Z directions, and the gyro sensor may detect the angular velocity.

The processor 170 may move the head of the user 700 up, down, left, or right, move forward, backward, or rotate based on the sensing signal detected by the sensor unit 130. Can be determined.

Next, the head mounted display apparatus 100 displays another partial region of the image having the first resolution according to the detected movement of the head of the user 700 (S540).

The processor 170 performs a corresponding operation according to the detected head movement of the user.

In particular, when the user's head movement is detected while the processor 170 is outputting a partial region of the image having the first resolution to the display 180, the processor 170 displays the other partial region of the image having the first resolution. Can be output to

In detail, the processor 170 may control to display another partial region of the image having the first resolution in response to the up, down, left, or right movement of the head of the user 700.

FIG. 6 illustrates that when the movement of the head 705 of the user 700 moves up, down, left, or right, the image area displayed on the display 180 corresponds to up, down, left, Or to move right. As a result, the user can easily identify the area region that is not viewed insane among the images having the first resolution.

In FIG. 7, as shown in FIG. 6, an image 9706 of a partial region of the image 610 having the first resolution is displayed, but the vertical size of the partial region is the same as the vertical size of the first resolution image, but the horizontal size ( S2) illustrates smaller.

In this state, when the movement of the head 705 of the user 700 is moved to the left or right, the image area displayed on the display 180 is moved to the left or right correspondingly.

The processor 170 may control the displayed image area to move left or right in response to an up or down movement of the head of the user 700.

In detail, when the movement of the head 705 of the user 700 moves up or down, the image area displayed on the display 180 may move left or right as in the case of moving left or right. Do.

In FIG. 7, an object 675 indicating a partial display mode or a second resolution display mode is displayed on the display 180 together with the image 670 corresponding to a partial region of the image having the first resolution. . As a result, the user can recognize that the video being watched is part of the entire video area.

The processor 170 may control to zoom in or zoom out a partial area of the first resolution to be displayed in response to the front or rear movement of the head of the user 700.

Although not shown in FIG. 6 and FIG. 7, if there is another video area that the user is interested in or an important video area of the entire video area in an area other than the video area currently being viewed by the user 700, the processor may include a processor. 170 may control to display an indicator for inducing a user to watch. As a result, viewing of the user interest area or the important area can be performed.

FIG. 8 illustrates that when the movement of the head 705 of the user 700 moves backward, the image displayed on the display 180 is zoomed out and displayed.

That is, the image 620 corresponding to a partial region of the image 610 of the first resolution is displayed, and as the back movement moves, the image 622 corresponding to the entire region of the image of the first resolution may be displayed. .

In the drawing, the horizontal size of the image 620 corresponding to the partial region is S1 and the horizontal size of the image 622 corresponding to the entire region is S3, but the size of S3 is larger. The same size is also possible. That is, the image 622 corresponding to the entire area may be downscaled and displayed.

As such, the user may view the image 622 of the entire area of the first resolution image, thereby increasing user convenience.

On the other hand, unlike the figure, when the movement of the head 705 of the user 700 is moved backward, it is also possible to zoom in on the image displayed on the display 180.

Next, FIG. 9 illustrates that when the movement of the head 705 of the user 700 moves forward, the zoomed-in image of the image displayed on the display 180 is displayed.

That is, the image 622 corresponding to the entire area of the image 610 of the first resolution is displayed, and as the movement moves forward, the image 620 corresponding to a portion of the image 610 of the first resolution is displayed. Can be.

On the other hand, unlike the drawing, when the movement of the head 705 of the user 700 is moved forward, it is also possible to zoom out the image displayed on the display 180.

FIG. 10 illustrates that when the movement of the head 705 of the user 700 moves forward, the image displayed on the display 180 is zoomed in and displayed, and accordingly, the size of the output audio signal is increased. .

As shown in the figure, in order to increase user immersion when the image is zoomed in, the audio output unit 170 of the head mounted display apparatus 100 may include a second sound having a larger amplitude than the first sound 1. sound 2) can be output. In addition, it is possible to increase the frequency, gradually reduce the phase difference, or a combination thereof, such as the Doppler effect.

On the other hand, when the movement of the head 705 of the user 700 is moving backward as shown in FIG. 9, the image displayed on the display 180 is zoomed out, and accordingly, the size of the output audio signal is reduced or the frequency is reduced. It is possible to reduce the size, increase the phase difference, or a combination thereof.

On the other hand, when the movement of the head 705 of the user 700 is up, down, left, or right movement as shown in FIG. 7 or 8, the processor 170 outputs audio from the audio output unit 170. At least one of the frequency, magnitude, and phase of the signal may vary.

In particular, it is possible to output a directional audio signal. For example, it is possible to change the sign between channels in the frequency band of the audio signal, adjust the complex value between the channels, adjust the phase between the channels, or adjust the gain for each frequency.

Meanwhile, when the movement of the head 705 of the user 700 is an up, down, left, or right movement as shown in FIG. 7 or 8, the processor 170 corresponds to a change in the object of the displayed image. It can be controlled to output an audio signal for the object.

When audio encoding of the reproduced image content is performed, object-based coding is performed, and when audio data, in which object-by-object coding is performed, is received by the head mounted display apparatus 100, the processor 170 may determine the user's 700. In response to the movement of the head 705, audio signal reproduction for each object may be performed.

FIG. 11 illustrates that when the movement of the head 705 of the user 700 moves left, the displayed image 620 is moved to the left to display an image 1120 including a specific object.

In this case, an object 1125 indicating a partial display mode or a second resolution display mode may be displayed together. As a result, the user can recognize that the video being watched is part of the entire video area.

Referring to the drawings, the image 620 displayed before the left movement is an image including a partial region of the vehicle, and the image 1120 displayed after the left movement is an image including the guitar player.

When audio coding for the image content is performed for each vehicle or other player, the object 170 performs a third sound related to the vehicle in response to the image 620 displayed before the left movement. ) May be output, and in response to the image 1120 displayed after the left movement, a fourth sound related to the guitar player may be output.

On the other hand, even if object coding is not performed, the processor 170 displays when the movement of the head 705 of the user 700 is up, down, left, or right movement as shown in FIG. 7 or 8. At least one of a frequency, a magnitude, and a phase of the output audio signal may be changed according to the movement of the image.

12 illustrates an example of using a plurality of head mounted display devices.

The first head worn by the first user 700a when the same content is reproduced and executed between the first user 700a and the second user 700b, for example, when the two-player game content is executed. The second head mounted display device 100b worn by the mounted display device 100a and the second user 700b may exchange data with each other or via each other.

When the image resolution of the same content is the first resolution, each head mounted

display apparatus

100a or 100b may display an image having a second resolution lower than the first resolution. In particular, the game image that the user is executing may be displayed.

As shown in the drawing, when the entire video 1210 of the game for two players includes the first user video and the second user video, the first head mounted display apparatus 100a may include the first user video 1220. ), And the second head mounted display apparatus 100b may display the second user image 1230.

In this case, together with the first user image 1220 and the second user image 1230, objects 1225 and 1235 representing a partial display mode or a second resolution display mode may be displayed, respectively. As a result, it is possible to confirm which user the image is for the two-person image.

Meanwhile, in FIG. 12, when there are some images displayed for each user, when there is an up, down, left, or right movement as shown in FIG. 6 or 7, it is also possible to display an image for another user. . That is, when the first user 700a moves the head 705 to the right, the first head mounted display apparatus 100a replaces the first user image 1220 with the second user image 1230. I can display it.

On the other hand, zoom in and zoom out are also possible. That is, as shown in FIG. 8, when there is a backward movement, the first head mounted display apparatus 100a may display the first user image 1220 and zoom out to display the entire image 1210. .

Meanwhile, since the head mounted display apparatus 100 is a display apparatus that can be worn on the head 705 of the user 700, it is preferable to perform image display according to the user's eyesight.

As a method of displaying an image corresponding to the user's eyesight, as mentioned in the description of FIG. 4, a method of changing the position of the user's eyes and the lens unit 195 by moving the position of the lens unit 195 is described. have.

As another method, there is a method of performing signal processing on an image to be displayed without shifting the position of the lens unit 195.

All of these methods are preferably performed based on the user's vision information.

Accordingly, an embodiment of the present invention provides a method of receiving a user's vision information from an external device and performing signal processing on an image to be displayed based on the vision information.

13 illustrates receiving user vision information from the external device 1300 and adjusting focusing of content according to the received vision information.

As shown in FIG. 13A, when the focus of a part of the area 1315 of the displayed image 1310 is not focused, the user 700 may not recognize it well.

The head mounted display apparatus 100 may perform a request for transmitting vision information to the external device 1300 to reproduce image content, and transmits the vision information 1305 of the corresponding user from the external device 1300 to a communication module ( 135).

In this case, the external device 1300 may be a mobile terminal (not shown) or a server (not shown) that stores visual acuity information of the user, for example, diopter information.

The processor 170 may perform image signal processing on an image to be reproduced in response to the received vision information 1305.

For example, the processor 170 may determine a region to be focused in the image in response to the user's eyesight information, and enhance the sharpness, etc., to emphasize the focusing on the determined focusing region.

When determining the focusing area, the processor 170 may calculate a depth in the image and determine the focusing area according to the calculated depth. For example, as the user has poor vision, the distant image may not be seen well, and thus, an image area having a small depth may be selected and focusing may be performed.

Although not shown in the rear view of the head mounted display apparatus 100 of FIG. 2, a camera (not shown) may be further disposed between the left eye lens unit 195L and the right eye lens unit 195R to photograph the user's eyes. have.

The processor 170 may receive a photographing of the user's eyes from the camera and grasp the movement of the user's eyes.

In addition, as shown in FIG. 14, the processor 170 may determine a menu display area according to the movement of the user's eyes, and may control to display a menu in the corresponding area.

FIG. 14A illustrates a menu 1425 in the right region 1420 of the display image 1410 when both the left eye 710L and the

pupils

701L and 701R of the right eye 710R move to the right. Illustrates that is displayed. Accordingly, user convenience may be increased.

The processor 170 may select a corresponding item based on a user's head movement while the menu is displayed.

If the user 700 nods the head 705 as shown in FIG. 14B, the processor 170 may determine to select the focused item in the menu.

Meanwhile, as shown in FIG. 14C, when the user 700 moves the head 705 up or down, the processor 170 may determine that the focusing in the menu is moved up or down. As a result, the user can easily select a desired item in the menu.

The processor 170 may change an operation corresponding to the movement of the user according to the type of content that is reproduced and displayed.

FIG. 15A illustrates that the movie content 1510 and the object 1515 indicating the content type are displayed together.

At this time, when the user 700 nods the head 705 as shown in FIG. 15 (b), the processor 170 'yes', as shown in FIG. 15 (c), the user 700 displays the head 705. If you move horizontally, 'no', moving to the left as shown in FIG. 15 (d), moving to the previous point and playing, moving to the right as shown in FIG. 15 (e), moving to the next point and playing It can be controlled to perform.

FIG. 16A illustrates that the broadcast image 1610 and the object 1615 indicating the type of content are displayed together.

In this case, when the user 700 moves the head 705 downward as shown in FIG. 16 (b), the processor 170 'volume down', as shown in FIG. 16 (c), the user 700 moves the head ( If the 705 is moved upward, 'volume up', as shown in FIG. It can be controlled to perform.

15 and 16 may be distinguished from the partial region movement display according to the resolution.

That is, when the contents of FIG. 15 and FIG. 16 are HD contents, different operations may be performed according to the type of content, unlike movement of some regions of the UD image, such as FIG.

The head mounted display device and the method of operating the same according to the embodiment of the present invention are not limited to the configuration and method of the embodiments described above, but the embodiments may be modified in various ways. All or some of these may optionally be combined.

On the other hand, the operation method of the head mounted display device of the present invention can be implemented as a processor readable code on a processor readable recording medium provided in the head mounted display device. The processor-readable recording medium includes all kinds of recording devices that store data that can be read by the processor. Examples of the processor-readable recording medium include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like, and may also be implemented in the form of a carrier wave such as transmission over the Internet. . The processor-readable recording medium can also be distributed over network coupled computer systems so that the processor-readable code is stored and executed in a distributed fashion.

In addition, although the preferred embodiment of the present invention has been shown and described above, the present invention is not limited to the specific embodiments described above, but the technical field to which the invention belongs without departing from the spirit of the invention claimed in the claims. Of course, various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the prospect of the present invention.

The present invention is a head mounted display device and a method of operating the same, which can be worn on a user's head to watch an image.

Claims

In the operation method of the head mounted display device that can be worn on the user's head,

Receiving an image having a first resolution;

Displaying a partial area of the image having the first resolution according to a second resolution display mode smaller than the first resolution;

Detecting movement of the head of the user;

And displaying another partial region of the image having the first resolution according to the detected movement of the head of the user.
The method of claim 1,

The other partial region display step,

And displaying the other partial area of the image having the first resolution in response to an up, down, left, or right movement of the head of the user.
The method of claim 1,

The other partial region display step,

And in response to the front or rear movement of the user's head, zooming in or zooming out a portion of the displayed first resolution.
The method of claim 1,

And displaying a menu in a region corresponding to the gaze of the user in a menu display mode.
The method of claim 1,

And at least one of a frequency, a magnitude, and a phase of an output audio signal according to the detected movement of the head of the user.
The method of claim 1,

Receiving vision information of the user from the outside;

And adjusting the focusing of the image to be displayed based on the received visual acuity information.
The method of claim 1,

And an operation corresponding to the movement of the user according to the content type of the first resolution image.
The method of claim 1,

And displaying an indicator for viewing the other partial region when the partial region is displayed.
A head mounted display device that can be worn on a user's head,

A display for displaying a predetermined image;

A lens unit for enlarging an image displayed on the display;

Sensor unit for detecting the movement of the user's head;

Receiving an image having a first resolution, controlling to display a partial region of the image having the first resolution according to a second resolution display mode smaller than the first resolution, and according to the detected head movement of the user, And a processor configured to control to display another partial region of the image having one resolution.
The method of claim 9,

The processor,

And controlling to display the other partial region of the image having the first resolution in response to an up, down, left, or right movement of the user's head.
The method of claim 9,

The processor,

And controlling to display a zoom-in or zoom-out portion of the displayed first resolution in response to the front or rear movement of the user's head.
The method of claim 9,

The processor,

And in a menu display mode, to display a menu in an area corresponding to the gaze of the user.
The method of claim 9,

The processor,

And at least one of a frequency, a magnitude, and a phase of an output audio signal according to the detected head movement of the user.
The method of claim 9,

And a communication module configured to receive vision information of the user from the outside.

The processor,

And adjust focusing of an image to be displayed based on the received visual acuity information.
The method of claim 9,

The processor,

And an operation corresponding to the movement of the user according to the content type of the first resolution image.
The method of claim 9,

And a driving unit varying a distance between the user's eye and the lens unit.
The method of claim 9,

The processor,

And displaying the indicator for viewing the other partial region when the partial region is displayed.