JPH0795498A - Glasses type display - Google Patents

Abstract

PURPOSE:To easily suppress the fatigue of user's eyes by shifting the display position of an image in the direction opposite to the eyes in response to the change of direction of the eyes. CONSTITUTION:The sensors 54, 55 and 56 are attached to a glasses type display and detect the position of a user in the horizontal and vertical planes and the tilt of the ser in the vertical plane respectively based on the angular velocity of each direction. An arithmetic circuit 57 calculates the output of sensors 54-56 respectively and controls the writing or reading addresses of frame memories 52R and 52L based on those arithmetic results. Meanwhile a timing generator 58 is controlled to transmits the control signals to the LCD 12R and 12L based on the arithmetic results. Therefore the display position of an can be shifted in the direction opposite to the user's eyes in response to the moving directions of eyes. Then a so-called 'eye turning action' is possible.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spectacle type display suitable for use in, for example, game machines.

[0002]

2. Description of the Related Art Recently, a game apparatus in which a spectacles type display is mounted on a head and a user enjoys a game while watching an image displayed on the display is becoming popular. In such a game device, since the display is mounted on the head, the user can always see the image regardless of the posture, and can enjoy a more varied game.

20 to 22 show changes in the display image of such a conventional spectacles type display and the posture of the user.

FIG. 20 (a) shows a state in which the user faces the front of his / her body and is using the spectacle type display. Then, FIG. 2B shows the field of view (display image) of the spectacles type display in that posture.

In this spectacle type display, the see-through region R ₁ is provided, and when the image is not displayed, the outside world can be seen with the spectacle type display worn on the head. . A predetermined range R ₂ of the see-through region R ₁ is a displayable region, and the image is displayed within this range. In reality, a part of the displayable area R ₂ is an area R _{3 which} is an actual image display area, and an image is displayed in this display area R ₃ . Therefore, the user can observe the outside world as it is in the area other than the display area R ₃ . In the case of this example, persons M _{1 to} M ₃ located in front of the user are observed.

The image displayed in the display area R ₃ is a stereoscopic image as the virtual image I, and is recognized by the user so as to be positioned ahead by a predetermined distance from the user.

FIG. 21 shows a state in which the user looks slightly to the right of the state shown in FIG. That is, FIG.
As shown in (a), the user rotates his / her head from the front of his / her body to the right by an angle θ ₁ in the horizontal plane. As a result, in the state shown in FIG. 20, the person M ₁ was seen in the front, and the persons M ₂ and M ₃ were respectively observed on the left and right, but in the state shown in FIG. 21, the person M ₃ was seen in the front. Can be seen, and the person M ₁ is seen to the left of it.

FIG. 22 shows a state in which the user is further facing the right side. That is, in this state, the user turns to the right by the angle θ ₂ (θ ₂ > θ ₁ ) in the horizontal plane. In this case, the user can observe the person M ₃ on the leftmost side of the see-through region R ₁ .

In any of the states shown in FIGS. 20 to 22, the display area R ₃ is always fixed at the approximate center of the displayable area R ₂ . As a result, the user can always observe the display image regardless of the position (orientation).

[0010]

As described above, in the conventional spectacle type display, the image is always displayed regardless of the direction of the user. As a result, eyes may get tired or a headache may occur when used for a long time. In such a case, the user has to remove the spectacles type display from his / her head, which causes a problem of poor operability.

The present invention has been made in view of such a situation and improves operability.

[0012]

The spectacles type display of the present invention is a display means for displaying an image (for example, the LCD of FIG. 1).
12R, 12L), detection means (sensors 54 to 56 in FIG. 1) for detecting a change in the direction of the line of sight of the user, and when the direction of the line of sight of the user changes, the display position of the image on the display means is the line of sight. The control means (for example, the arithmetic circuit 57 in FIG. 1) for controlling the display position of the image corresponding to the detection result of the detection means is provided so as to move in the direction opposite to the direction.

For the user's eye, the LCD 12R, 1
Optical means (for example, the half mirror 15 in FIG. 2) that allows the light of the image displayed on the 2L to enter and also allows the light from the outside to enter can be further provided.

The sensors 54 to 56 can detect the direction of the line of sight with respect to the direction of the user's body, or can detect the relative change with respect to the current direction of the line of sight of the user. This can be achieved, for example, by detecting the angular velocity of movement in the direction of the line of sight of the user.

Regardless of the detection results of the sensors 54 to 56,
A reset means (for example, the remote controller 33 in FIG. 1) for displaying an image can be further provided in substantially the center of the LCD 12R, 12L.

The sensors 54 to 56 can detect changes in the line of sight in the left-right direction, changes in the vertical direction, or changes in the inclination.

[0017]

In the spectacle-type display having the above structure, L
The display positions of the images displayed on the CDs 12R and 12L are moved in the direction opposite to the line-of-sight direction according to the detection results of the sensors 54 to 56. Therefore, it is possible to prevent the image from being displayed on the LCDs 12R and 12L by deflecting the line of sight.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram showing the internal electrical configuration of a spectacle type display. The RGB decoder 51
The input video signal is decoded to generate RGB data for the left eye and RGB data for the right eye. The RGB data for the left eye is supplied to and stored in the frame memory 52L. In addition, this data is read from the frame memory 52L, supplied to the LCD 12L for the left eye and displayed via the RGB driver 53L.

Similarly, the RGB data for the right eye output from the RGB decoder 51 is stored in the frame memory 52R.
Are stored and stored in. Then, this data is read, supplied to the LCD 12R via the RGB driver 53R, and displayed.

The sensors 54, 55, and 56 are mounted on the spectacle-type display, respectively, and are located in the horizontal plane (left-right direction) of the user wearing the spectacle-type display and in the vertical plane (up-down direction). ) Detect the position or inclination in the vertical plane from the angular velocity in each direction. The arithmetic circuit 57 calculates the outputs of these sensors 54 to 56,
Corresponding to the calculation result, the frame memories 52R and 52R
The write address or read address of L is controlled. Further, the timing generator 58 that outputs a control signal for controlling the LCDs 12R and 12L is controlled in accordance with the calculation result.

Operation circuit 57 and timing generator 5
A signal synchronized with the synchronizing signal in the video signal detected by the RGB decoder 51 is supplied to 8. The remote controller 33, when operated by the user, operates the arithmetic circuit 57.
It is designed to output a reset signal to.

FIG. 2 shows a more detailed structure mainly of the optical system of the spectacle type display. The spectacles type display is basically composed of a main body 1 and a ring 2. A pad 3 is provided on the back side of the main body 1, and by pressing the pad 3 against the user's forehead and turning the ring 2 to the rear of the head, it is just like a person wearing glasses,
It is designed so that an eyeglass-type display can be worn.

A backlight 11 is provided on the main body 1,
LCDs 12L and 12 provided one each on the left and right
R is illuminated from behind. An image signal for the left eye is displayed on the LCD 12L provided on the left side of the LCD 12, and an image signal for the right eye is displayed on the LCD 12R provided on the right side. The image displayed on the LCD 12 is reflected by the mirrors 13L and 13R provided to face the left and right LCDs 12L and 12R, respectively, and further reflected by the half mirror 15, so that the image of the user wearing this spectacle-type display is displayed. It is designed to be incident on the eyes.
At this time, the image displayed on the LCD 12L for the left eye is
The image incident on the left eye of the user and displayed on the LCD 12R for the right eye is incident on the right eye of the user.

Between the pair of left and right mirrors 13L, 13R and the half mirror 15, a pair of left and right aspherical lenses 14L,
14R is provided so that the images displayed on the LCD 12L for the left eye and the LCD 12R for the right eye are respectively enlarged and focused on the eyes of the user.

A smoke glass 16 is rotatably provided on the front surface of the half mirror 15. As shown in FIG. 2, when the smoke glass 16 is opened, the user can see the outside world through the half mirror 15 as needed. Whether to see the image of the LCD 12 reflected by the half mirror 15 or see the outside world,
It is automatically selected according to which the user focuses on. When it is not necessary to see the outside world, the smoke glass 16 is closed to prevent the light from the outside world from entering the half mirror 15, so that the image on the LCD 12 can be seen more clearly.

On the right side surface of the main body 1, an interpupillary adjustment knob 17
Is provided, and by adjusting the interpupillary adjustment knob 17, the aspherical lenses 14L, 1L arranged on the left and right are provided.
The horizontal distance of 4R can be adjusted to the pupil distance of one's eye, that is, the distance between both eyes.

A virtual image position adjusting knob 18 is provided on the left side surface of the main body 1. By rotating and adjusting the virtual image position adjusting knob 18, the distance between the LCD 12 and the aspherical lens 14 in the optical axis direction. Can be changed. Thereby, the virtual image position can be adjusted (diopter adjustment). That is, when the virtual image position adjusting knob 18 is adjusted,
The user can recognize the image displayed on the LCD 12 as an image existing at a position 3 m away from himself or as an image existing at a position 1 m away. This distance can be adjusted by operating the virtual image position adjusting knob 18.

Between the left and right mirrors 13L and 13R, D
The / A converter 10 is arranged. The D / A converter 10 outputs electric power for driving the backlight 11. Since the electric power for driving the backlight 11 is relatively high voltage, it is disadvantageous in terms of withstand voltage if it is arranged at a position far from the backlight 11. Therefore,
In the case of this embodiment, as shown in FIG.
It is arranged in the vicinity of 1 and between the pair of mirrors 13L and 13R.

Headphone reels 21L and 21R are provided on the left and right side surfaces of the ring 2, and the left and right earphones 3 are provided.
The cords 32 of 1L and 31R (the earphone 31L on the right side is not shown) can be appropriately wound. A D / D converter 22 is housed on the right side surface of the ring 2. This D / D converter 22 is
This is for supplying a necessary DC voltage to each part of this spectacle-type display. Also, on the left side surface of the ring 2,
An RG board 23 in which circuits for processing image signals such as the decoder 51 and the frame memory 52, a driver 53 for driving the LCD 12, and the like are arranged is accommodated.

A remote controller 33 is connected to the left side surface of the ring 2 via a cord 34. The user operates the remote controller 33 to operate the earphone 31.
It is possible to adjust the audio signal output to the display and the image displayed on the LCD 12.

Next, the operation will be described. The RGB decoder 51 is supplied with video signals to be displayed on the left and right LCDs 12L and 12R. The RGB decoder 51
This video signal is decoded to generate left and right RGB data. The left and right RGB data are supplied to the corresponding frame memories 52L and 52R, and then read from the corresponding frame memories 52L and 52R, and are read via the RGB drivers 53L and 53R.
It is supplied to each of the CDs 12L and 12R and displayed.

The images displayed on the LCDs 12L and 12R are reflected by the left and right mirrors 13L and 13R, respectively, enter the half mirror 15 through the aspherical lenses 14L and 14R, are reflected again there, and are reflected by the eyes of the user. Is incident on. Since the images displayed on the left and right LCDs 12L and 12R include components corresponding to the parallax of both eyes, the user combines the images incident on both eyes in his / her head and creates a stereoscopic image ( Recognized as a virtual image).

3 to 5 show the posture of the user and the field of view (display image) at that posture.

FIG. 3 shows a case where the user faces the same direction (front) as the body. At the center of the front of the user, there is a person M ₁ , and to the left and right of that person M ₂
There are M ₃ a. In this case, if the smoke glass 16 is left open, the user will see an image as shown in FIG.

That is, the image displayed on the LCD 12 is displayed in the display area R ₃ . The LCD 12 does not display the display image over the entire range of the displayable area R ₂ , but displays the image with a slight margin left on the outer peripheral portion thereof. Therefore, the display area R ₃ is displayed to the user.
In the range excluding, the front person M ₁ and the left and right persons M ₂ , M ₃
Can be observed in the see-through region R ₁ and the displayable region R ₂ .

From the state shown in FIG. 3A, the state shown in FIG.
It is assumed that the user turns his / her head to the right by an angle θ ₁₁ with the body facing forward as shown in FIG. FIG. 4B shows the field of view (display image) in that state. At this time, the display area R ₃ is moved to the left of the displayable area R ₂ . As a result, the user can observe the person M ₃ in the front through the displayable region R ₂ and can observe the person M ₁ from the left side of the see-through region R ₁ .

When the user further faces the right side as shown in FIG. 5 (a) and faces the right side by an angle θ ₁₂ from the front, the display image becomes as shown in FIG. 5 (b). That is, in the display region R _2, are not displayed anymore image, the user can through the displayable region R ₂ and the see-through region R _1, to fully observe the outside world. In the present case, the person M ₃ can be seen to the left of the see-through region R ₁ .

That is, in this case, the sensor 54 detects the position of the user's head in the horizontal plane and outputs the detection signal to the arithmetic circuit 57. The arithmetic circuit 57 calculates the output of the sensor 54 and controls the timing generator 58 according to the calculation result. Timing generator 58
Corresponds to the control signal from the arithmetic circuit 57,
Supply to 2L and 12R. The timing signal is controlled, for example, as shown in FIG.

That is, when the user faces the front as shown in FIG. 3, the LCD 12 is driven as shown in FIG. 6 (a). That is, following the pedestal period of the horizontal synchronizing signal HD, the signal is substantially put into a non-signal state for a period T ₁ corresponding to an undisplayed section on the left side of the displayable region R ₂ . Then, an image to be displayed subsequently, that is, a signal ABC as an image component corresponding to the display region R ₃ is arranged. And further next, the displayable area R ₂
A section in which an image signal does not substantially exist is formed for a period T ₂ corresponding to the undisplayed section on the right side of. In this way, as shown in FIG. 31B, the displayable area R ₂ (L
A predetermined image ABC is displayed almost in the center of the CD 12).

On the other hand, as shown in FIG. 4, when the user is facing the right angle from the front by the angle θ ₁₁ , as shown in FIG. 6B, immediately after the horizontal synchronizing signal HD. The video signal of the image BC is arranged following the pedestal period of. Then, the subsequent period T ₃ is a period in which no video signal substantially exists. Thus, as shown in FIG. 4 (b), the image BC is displayed on the left end of the display region R _2, the other sections of the display region R ₂ is able to observe the external with see-through region R ₁ It becomes a state.

Further, as shown in FIG. 5 (a), when the user turns to the right from the front by an angle θ ₁₂ (θ ₁₂ > θ ₁₁ ), as shown in FIG. 6 (c), During the period T ₄ immediately following the horizontal sync signal and following the pedestal period, the video signal is substantially absent. By doing so, as shown in FIG. 5B, the image is not substantially displayed in the displayable region R ₂ , and the external world is observed from all the regions as in the see-through region R ₁ . You will be able to do so.

FIGS. 7 to 9 show changes in the display state of the image when the user faces left with the body facing forward.

When the user is facing the front as shown in FIG. 7 (a), the displayed image is as shown in FIG. 7 (b). This image is the same as the image in FIG.

On the other hand, as shown in FIG.
When the head is turned to the left by the angle θ ₂₁ , the displayed image changes as shown in FIG. 8B. That is, in this case, the display area R ₃ is moved to the right of the displayable area R ₂ . And there, in the image ABC, the image A on the left side
Only B is displayed.

Further, as shown in FIG. 9, when the user turns leftward from the front by an angle θ ₂₂ (θ ₂₂ > θ ₂₁ ), FIG.
(B), the display region R ₂ substantially a state not appear nothing image, it is possible to observe the outside from there.

Also in this case, the video signal supplied to the LCD 12 by the timing generator 58,
The timing with the horizontal sync signal is adjusted.

In these cases, the display area R
_The speed at which ₃ moves to the left or to the right (opposite the direction of the head of the user) can be proportional to the angular speed at which the user moves his head.

By the way, for example, as shown in FIG. 10, when the user is facing north, as shown in FIG. 3 or FIG. 7, displayed in the center of the display region R ₂ region R ₃
Shall be formed. The direction in which the user wears the spectacles-type display is not necessarily the north direction. Therefore, even if the user faces the east direction, as shown in FIG. 11, the display is as shown in FIG. 3 or 7. Possible area R
It is necessary to form the display region R ₃ at approximately the center of ₂ .

For this reason, that is, the sensor 54 does not detect the absolute direction of the head orientation (north, east, west, north), but detects a change in direction from a predetermined direction (for example, north or east). The display position of the image may be changed according to the detection result. To this end, the angular velocity of the movement of the head of the user may be detected, and the display region R ₃ may be moved in accordance with this angular velocity.

Note that, for example, from the state shown in FIG.
When the user changes his / her posture to the state shown in, that is, not only when the head is rotated to the right, but also when the body is rotated to the right, the direction of the body and the direction of the line of sight are not changed. . When the user turns in any direction to play the game, this direction is used. That is, as shown in FIGS. 3 to 5 or 7 to 9, the head is not rotated without rotating the body. Therefore, when not only the head orientation but also the body orientation is changed in this way, the display position of the image may not be changed. With this configuration, the user can play the game in any direction suitable for playing the game.

However, if the sensor 54 detects the angular velocity of the head, the change in the angular velocity is detected not only when the head is rotated but also when the body is rotated. As a result, the display position of the image is moved so that the display area R ₃ is not displayed in the displayable area R ₂ immediately after the display position is oriented in any direction. So, in such a case,
The remote controller 33 is operated to input the reset signal to the arithmetic circuit 57. When the reset signal is input, the arithmetic circuit 57 executes a process of invalidating the output of the sensor 54 up to that point. Immediately after the reset signal is input, the display position of the image is controlled according to the output of the sensor 54. With this configuration, when the user faces an arbitrary direction, it is possible to quickly observe the display image in the state of facing the direction.

Alternatively, the sensor 54 detects the difference between the body orientation and the head orientation, and when the head orientation is the same as the body orientation, the head orientation (and hence the body orientation) The display position of the image does not change even if the orientation of the head changes, and only when the orientation of the head (the direction of the line of sight) deviates from the orientation of the body, the display position of the image in the opposite direction May be moved.

By doing so, when the user simultaneously changes the body orientation and the head orientation in order to select an arbitrary direction for playing the game, the image is always displayed in the center. Only when the body is fixed and only the head is displaced from the body,
The display position of the image will be moved. As a result, it is possible to quickly select the direction for enjoying the game without inputting the reset signal. Of course, also in this case, when the reset signal is input, the image may be displayed substantially in the center of the displayable area.

As described above, when the direction of the line of sight with respect to the direction of the body is not detected, it suffices to detect the change in the direction of the line of sight relative to the direction of the immediately preceding line of sight. Therefore, this change can be detected by detecting the angular velocity of the movement of the line of sight.

In the above embodiment, the movement of the line of sight is detected in the horizontal plane, but a change in the vertical (vertical) plane (change in the vertical direction) may be detected.

12 to 14 show an embodiment of this case. For example, as shown in FIG. 12 (a), when the user is facing the front, as shown in FIG. 12 (b), substantially at the center of the display region R _2, the display area R ₃
Is displayed. In this case, behind the virtual image I in the display area R ₃ , background images (house images) H _{1 to} H ₃ that actually exist are visible.

From this state, when the user changes the line of sight upward as shown in FIG. 13 (a), the displayed image changes as shown in FIG. 13 (b). That is, in this case, displayed on the lower display region R ₂ region R ₃
A part of the upper part of is displayed. At this time, the background image also changes in response to the upward change of the line of sight. In the case of this embodiment, the lower part H ₃ of the image of the house is invisible.

On the contrary, as shown in FIG. 14 (a), when the user turns his / her line of sight downward, the displayed image changes as shown in FIG. 14 (b). That is, a part of the lower part of the display area R ₃ is displayed above the displayable area R ₂ . In this case, the image H ₁ corresponding to the roof of the house that was visible in the state shown in FIG. 12B is no longer visible.

Such a vertical change in the line of sight of the user is detected by the sensor 55. The arithmetic circuit 57 controls the timing generator 58 in response to the detection result of the sensor 55, and the timing generator 58 responds to this control with a signal as shown in FIG.
Controls R and 12L.

That is, as shown in FIG. 12A, when the user is facing the front, the timing generator 5
As shown in FIG. 15 (a), 8 arranges the image corresponding to the display area R ₃ substantially at the center between the vertical synchronizing signal VD and the next vertical synchronizing signal VD.

On the other hand, as shown in FIG. 13A, when the user faces upward,
As shown in (b), the video signal corresponding to the display area R ₃ is arranged in the rear portion between the vertical synchronizing signal VD and the next vertical synchronizing signal VD.

Furthermore, as shown in FIG.
When the user faces downward, as shown in FIG. 15C, the video signal corresponding to the display area R ₃ is arranged in the period between the two vertical synchronizing signals VD before the time. .

Furthermore, the display position of the image can be changed even when the head is tilted left and right. 16 to 18 show an embodiment in this case. That is, as shown in FIG. 16 (a), when the user does not tilt his / her head, an image as shown in FIG. 16 (b) is obtained. This image is substantially the same as the image shown in FIG.

On the other hand, as shown in FIG. 17A, when the user tilts his / her head to the right side by an angle α ₁ as viewed from the rear, an image as shown in FIG. 17B is displayed. Let That is, in this case, in the displayable area R ₂ , the display area R ₃ is rotated and displayed in the direction opposite to the direction of inclination of the user's head. At this time, the background images H _{1 to} H ₃ also appear to be tilted in the direction opposite to the head tilt.
In other words, the relative relationship between the background images H _{1 to} H ₃ and the display area R ₃ has not changed.

On the contrary, as shown in FIG. 18 (a), when the user tilts his / her head to the left as viewed from the rear by an angle α ₂ , the display image is changed as shown in FIG. 18 (b). That is, the display area R ₃ is displayed in the displayable area R _{2 while} being tilted rightward. At this time, since the background images H _{1 to} H ₃ are similarly inclined to the right side, the display region R ₃ and the background images H _{1 to} H 3
The relative relationship of ₃ does not change.

Such a head inclination is detected by the sensor 56. The arithmetic circuit 57 controls the read address of the image data stored in the frame memories 52R and 52L in response to the output of the sensor 56, for example, as shown in FIG.

That is, for example, assuming that the write addresses when data is recorded in the frame memories 52R and 52L are represented by the coordinates X _W and Y _W , the coordinate types X _W and Y _W are as follows: The arithmetic circuit 57 calculates the read address along the coordinate axes X _R and Y _R inclined by an angle corresponding to the angle α of the head inclination. By reading the data corresponding to the read address along the coordinate axes X _R and Y _R ,
The image displayed on the LCD 12 can be tilted by the angle α.

In the above embodiment, the direction of the line of sight is detected from the direction of the head, but it is also possible to detect the direction of the line of sight from the position of the eyeball.

Further, in the above embodiment, the display area R ₃ is moved in the direction opposite to the moving direction of the line of sight, so that the so-called line of sight is deflected. be able to. Some conventional spectacle-type displays are designed to move the display image in response to the movement of the line of sight. This has characteristics similar to those of the present embodiment in that the display image is moved in the direction opposite to the line of sight, but in the present embodiment, not only the display image is moved, but the display area R ₃ itself is moved. . Thus, eventually it will move the display area R ₃ outside the display region R _2, can result in a state in which the display region R ₂ does not appear substantially image. As a result, it is possible to perform an operation of diverting the line of sight.

On the other hand, in the conventional eyeball display, when the line of sight is moved,
New images are continuously displayed, and even if the line of sight is deflected, the image in the deflected direction is displayed, so that it becomes impossible to rest the eyes.

The case where the present invention is applied to a so-called see-through type spectacle type display capable of observing not only the display image but also the outside world has been described above, but the present invention cannot see the outside world and the display image It is also possible to apply to a spectacle-type display capable of seeing only.

[0072]

As described above, according to the spectacles type display of the present invention, the display position of the image is moved in the direction opposite to the direction of the line of sight corresponding to the change of the direction of the line of sight of the user. Therefore, it is possible to prevent the displayed image from being seen by performing a so-called line-of-sight operation while wearing the spectacle-type display, and it is possible to easily suppress the occurrence of eye fatigue, headache, or the like. It will be possible.

[0073]

[Brief description of drawings]

FIG. 1 is a block diagram showing an electrical configuration of a glasses-type display of the present invention.

FIG. 2 is a perspective view mainly showing the configuration of an optical system of the eyeglass-type display of the present invention.

FIG. 3 is a diagram illustrating a change in a display image when the line of sight is changed in the horizontal direction.

FIG. 4 is a diagram illustrating a change in a display image when the line of sight is changed in the horizontal direction.

FIG. 5 is a diagram illustrating a change in a display image when the line of sight is changed in the horizontal direction.

6 is a timing chart for explaining the operation of the timing generator 58 of FIG. 1 for realizing the display of FIGS.

FIG. 7 is a diagram illustrating a change in a display image when the line of sight is changed in the horizontal direction.

FIG. 8 is a diagram illustrating a change in a display image when the line of sight is changed in the horizontal direction.

FIG. 9 is a diagram illustrating a change in a display image when the line of sight is changed in the horizontal direction.

FIG. 10 is a diagram showing an absolute position in the direction of the line of sight of the user.

FIG. 11 is a diagram showing an absolute position in the direction of the line of sight of the user.

FIG. 12 is a diagram illustrating a change in a display image when the line of sight is changed up and down.

FIG. 13 is a diagram illustrating a change in a display image when the line of sight is changed up and down.

FIG. 14 is a diagram illustrating a change in a display image when the line of sight is changed up and down.

15 is a timing chart explaining the operation of the timing generator 58 of FIG. 1 to obtain the display images of FIGS.

FIG. 16 is a diagram illustrating a change in a display image when the line of sight is tilted.

FIG. 17 is a diagram illustrating a change in a display image when the line of sight is tilted.

FIG. 18 is a diagram illustrating a change in a display image when the line of sight is tilted.

FIG. 19 is a diagram for explaining the operation of the arithmetic circuit 57 for realizing the display images of FIGS.

FIG. 20 is a diagram illustrating a change in a display image on a conventional glasses-type display.

FIG. 21 is a diagram illustrating a change in display image on a conventional glasses-type display.

FIG. 22 is a diagram illustrating a change in a display image on a conventional glasses-type display.

[Explanation of symbols]

 1 Body 11 Backlight 12, 12L, 12R LCD 13, 13L, 13R Mirror 14, 14L, 14R Aspherical lens 15 Half mirror 16 Smoke glass 17 Eye width adjustment knob 18 Virtual image position adjustment knob 31L, 31R Earphone 33 Remote control 51 RGB decoder 52L, 52R Frame memory 53L, 53R RGB driver 54 to 56 Sensor 57 Operation circuit 58 Timing generator

Claims (9)

[Claims] 1. A display unit for displaying an image, a detection unit for detecting a change in the direction of the line of sight of the user, and a display area of the image of the display unit when the direction of the line of sight of the user changes. A spectacles-type display, comprising: a control unit that controls a display area of the image in accordance with a detection result of the detection unit so as to move in a direction opposite to the direction of the line of sight. 2. The optical device further comprises optical means for making the light of the image displayed on the display means incident on the eyeball of the user and also making the light from the outside incident on the eyeball of the user. An eyeglass-type display according to item 1. 3. The spectacles type display according to claim 1, wherein the detection means detects a direction of a line of sight with respect to a body direction of the user. 4. The spectacles type display according to claim 1, wherein the detection means detects a relative change with respect to a current direction of the line of sight of the user. 5. The detection means detects an angular velocity of movement in the direction of the line of sight of the user.
Or the spectacles type display according to item 4. 6. A reset means for arranging the display area of the image substantially in the center of the display means regardless of the detection result of the detection means.
6. The spectacles type display according to any one of 5 to 5. 7. The detecting means detects a change in the left-right direction of the line of sight of the user.
7. A spectacles type display according to any one of items 1 to 6. 8. The spectacles type display according to claim 1, wherein the detecting means detects a change in the vertical direction of the line of sight. 9. The spectacles type display according to claim 1, wherein the detection means detects a change in the inclination of the line of sight.