JP2865589B2 - LCD shutter glasses for stereoscopic video playback systems - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to liquid crystal shutter glasses for a stereoscopic video reproduction system for viewing a video reproduced by a stereoscopic video reproduction apparatus as a stereoscopic video.

[0002]

2. Description of the Related Art Conventionally, there have been proposed several types of liquid crystal glasses for a stereoscopic video reproducing system for viewing a reproduced video as a stereoscopic video. Among them, for example, a liquid crystal element plate and a polarizing plate are superposed to form a shutter. It is advantageous to use shutter-type liquid crystal glasses in which liquid crystal shutters for performing opening and closing operations are arranged in the left-eye lens unit and the right-eye lens unit, respectively.

A liquid crystal shutter used for such liquid crystal shutter glasses generally has a liquid crystal element plate in which a liquid crystal material is sealed formed of a light transmitting glass member, and two polarizing plates are superposed on both front and rear surfaces thereof. A so-called sandwich structure.

As described above, the liquid crystal shutter glasses have a structure in which the liquid crystal element plate, the polarizing plate, and the liquid crystal shutter are held in the spectacle frame. There is a structural drawback in that when a is worn, a large load is applied to the nose and ears carrying it.

Also, in the shutter type liquid crystal glasses, as the operating power for opening and closing the liquid crystal shutter, the operating power of the shutter is externally provided to a lower end surface near the shutter (for example, a liquid crystal shutter glasses connection terminal of a television receiver). ), A lithium power battery called a normal button battery, a shutter power switch for controlling power supply by the battery, and the like are arranged near the jack.

The shutter power supply jack is supplied with shutter operation power from the liquid crystal shutter glasses connection terminal of the television receiver as described above (ie, connected) through a connection cord having plugs connected to both ends thereof. When the plug of the cord is connected to the shutter power supply jack), it can be used as cord-type liquid crystal shutter glasses that automatically open and close the liquid crystal shutter in preference to the control by the shutter power switch.

The lithium battery supplies a shutter operation power to a liquid crystal shutter as a primary battery, and when the battery is mounted on liquid crystal shutter glasses, the glasses are connected based on a switching operation of the shutter power switch. It can be used as cordless liquid crystal shutter glasses that do not use a cord.

As described above, in the shutter-type liquid crystal glasses, electric components such as a shutter power supply jack, a primary battery, and a shutter power supply switch used for opening and closing the liquid crystal shutter are arranged in a spectacle frame near the liquid crystal shutter. And
It has been considered that the liquid crystal shutter glasses function even when the primary battery is exhausted.

However, electric components such as a shutter power supply jack, a primary battery, and a shutter power switch are arranged such that the shutter power supply jack is disposed on the right eye side or the left eye side depending on the structure of the liquid crystal shutter glasses. A shutter power switch is disposed on the left eye side or the right eye side, and the glasses are formed with priority given to the design and convenience of the liquid crystal shutter glasses. For this reason, the weight balance applied to the nose and ear when the user wears the liquid crystal shutter glasses may not be considered.

Therefore, in addition to the above-mentioned structural disadvantages of the liquid crystal shutter, if the user wears the liquid crystal shutter glasses and uses the liquid crystal shutter for a long time, the nose and ears may be hurt right or left or a stereoscopic image may be viewed. It has been a problem to solve the problem of the weight balance between the right and left sides of the user's nose and ears when the user wears the liquid crystal shutter glasses, such as being tired.

[0011]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problem relating to the shutter-type liquid crystal eyeglasses, in which electric components provided for opening and closing the liquid crystal shutter are equally distributed on the left and right side light shielding portions. It is an object of the present invention to provide liquid crystal shutter glasses for a stereoscopic video reproduction system in which the weight of the glasses is distributed so that the weight of the glasses when the glasses are worn is not biased to either the left or right of the nose and ears.

[0012]

In order to achieve the above object, a liquid crystal glasses for a stereoscopic video reproduction system according to the present invention comprises:
In addition, a liquid crystal shutter and a control signal receiving unit for receiving a control signal are provided on the front surface thereof. Having a front light-shielding portion for blocking unnecessary external light, and a side light-shielding portion for shielding external light incident from the side of the head, and distributing electric components disposed on the liquid crystal shutter glasses to the left and right side light-shielding portions. In addition, the weight balance of the glasses is made uniform. Secondly, a primary battery for supplying operating power to a liquid crystal shutter, a shutter power switch for controlling power supply by the battery, a shutter power jack for externally receiving operating power for the liquid crystal shutter, And a board for connecting them. Thirdly, a liquid crystal shutter and a control signal receiving unit for receiving a control signal are provided on the front surface thereof, and an upper light shield for blocking extraneous light incident from above the head while wearing glasses on the glasses frame of the liquid crystal shutter glasses. Part, a front light-shielding portion for shielding unnecessary external light to the face, and a side light-shielding portion for shielding external light incident from the side of the head, at the lower ends of the left and right side light-shielding portions of liquid crystal shutter glasses, A shutter power supply jack for receiving the operation power of the liquid crystal shutter from outside is arranged.

[0013]

As described above, the electric components such as the primary battery, the shutter power switch, the shutter power jack, and the board are distributed and arranged in the left and right side light-shielding portions of the liquid crystal shutter glasses so as to have a uniform balance. Therefore, the deviation of the weight balance of the liquid crystal shutter glasses in the left-right direction is eliminated.

Further, since the shutter power supply jacks are respectively arranged at the lower ends of the left and right side light shielding portions, the jacks are connected to the liquid crystal shutter glasses desired by the user.

[0015]

1 to 7 show one embodiment of liquid crystal shutter glasses for a stereoscopic video reproduction system according to the present invention.

FIG. 1 is an overall perspective view of the liquid crystal shutter glasses as viewed from the front, FIG. 2 is an exploded perspective view of the liquid crystal shutter glasses in FIG. 1, and FIG. 1 shows an overall perspective view.

FIG. 4 is a side view showing a state in which liquid crystal shutter glasses are worn by a user who does not wear normal glasses and a user who wears normal glasses. FIG. FIG. 6 is an explanatory view showing a shutter power switch of the liquid crystal shutter glasses, and FIG. 7 is an explanatory view showing a shutter power jack of the liquid crystal shutter glasses.

First, referring to FIG.
Is a first spectacle frame 1 integrally formed of a synthetic resin or the like.
0, an ear hook part 2 formed by bending the tip in a chord shape
0, a second spectacle frame 30 integrally molded to face the first spectacle frame 10 with a synthetic resin or the like, and a protection sheet 40 formed of a light transmissive resin or the like.

Next, referring to FIG.
Is a first upper light-shielding portion 11 having a first upper light-shielding surface 11a for shielding external light incident from above the head with the liquid crystal shutter glasses 1, and a second upper light-shielding portion 11 for shielding unnecessary external light to the face. It comprises a first front light-shielding portion 12 having one front light-shielding surface 12a, and a first side light-shielding portion 13 having a first side light-shielding surface 13a for blocking external light incident from the side of the head.

The first front light-shielding portion 12 is provided with a pair of openings 14 formed in a rectangular shape corresponding to the left and right eyes, and the lower side of the front light-shielding portion is formed along the slope of the nose. A curved nose hook 15 is formed. The nose hook 15 has a projection (not shown) for attaching a nose pad 16 on the face side of the liquid crystal shutter glasses 1 shown in FIG. Are formed.

The nose pad 16 is connected to the projecting portion 1.
Since the nose pad is configured to be freely attached to and detached from the nose pad, the nose pad can be removed for cleaning by dirt due to sweat or the like, and can be easily replaced even when the nose pad is deteriorated. it can.

The nasal pad 16 is formed of rubber or resin having viscoelasticity. For this reason,
The nose pad 16 absorbs an external shock or the like applied to the liquid crystal shutter glasses 1, and prevents damage to the nose due to external force and damage to normal glasses for a user wearing the glasses.

As shown in FIG. 3, the nose pad 16 hits the nose when a user who does not wear ordinary glasses (hereinafter, referred to as a non-wearer of glasses) wears liquid crystal shutter glasses. When the user wearing normal glasses (hereinafter, referred to as a spectacle wearer) wears the liquid crystal shutter glasses, the nose pad 16a in contact with the nose pad of normal glasses, which is in contact with the nose pad 16a, is in contact with the nose pad of normal glasses. And a nose resting back surface 16b.

When the liquid crystal shutter glasses are worn by a person who does not wear the glasses shown in FIG. 4A, the person who does not wear the glasses makes contact with the nose surface 16a against the slope of the nose.
The glasses are worn in a stable state, and the distance between the liquid crystal shutter glasses and the face is set.

When the spectacle wearer shown in FIG. 4B wears the liquid crystal shutter glasses, when the spectacle wearer wears the spectacles by contacting the nose surface 16a with the slope of the nose, the liquid crystal shutter glasses 1 are used. The normal spectacles 60 is lifted by the nose pad back surface 16b accompanying the wearing of the nose pad, and the nose pad 1
The distance between the liquid crystal shutter glasses and the face is set by the contact of the nose with the slope by 6a. Therefore, by mounting the liquid crystal shutter glasses 1, the normal spectacle pad 61 is simply carried on the nose resting back surface 16b, and the liquid crystal shutter glasses 1 are mounted in this state.

In other words, when the spectacle wearer wears the liquid crystal shutter glasses, the lens surface of the normal glasses 60 is only slightly lifted upward by the nose pad 16, and the spectacle pads 61 of the glasses are in the nose. Do not abut.
For this reason, the distance between the liquid crystal shutter and the face is set at substantially the same interval as when the non-wearer of glasses wears the liquid crystal shutter glasses.

The first front light-shielding surface 12a shown in FIG.
Includes a liquid crystal shutter 51 related to the liquid crystal shutter glasses 1,
A front substrate 53 to which a control signal receiving section 52 including a receiving sensor for receiving a 3D instruction signal for controlling the opening / closing operation of the liquid crystal shutter is mounted is attached.

Also, ribs 17a and 18a are formed on the left and right first side light-shielding surfaces 13a in a substantially parallel manner with a step, and supply operating power to the liquid crystal shutter 51 in opposition to the ribs. Battery holder 5 containing primary battery 54
The ribs 17b and 18b are formed in parallel to guide the insertion of the rib 5. Further, a notch 19 is provided at the lower end of the first side light-shielding portion 13 to allow the flange portion 55c of the battery holder 55 to be inserted and fitted in accordance with the positions of the ends of the rib 18a and the rib 18b. It is recessed.

As shown in FIG. 5A, the primary battery 54 is attached by inserting the battery into the battery holder 55, inserting the holder in the direction of arrow A from the notch 19, The locking pieces 55a, 55b are
The primary battery is attached while being held at the battery holder 55 while being locked to the other ends of 7a and 17b.

Similarly, as shown in FIG. 5B, when the primary battery 54 is removed, the slot 55d formed in the flange 55c is pushed down in the direction of arrow B, so that the locking piece 55a of the battery holder 55 is removed. , 55b and the rib 17a,
The engagement with the other end of the battery 17b is released, and the primary battery is further pulled out and removed in the direction of arrow B while being held by the battery holder 55.

Further, a right side substrate 57 to which a shutter power switch 56 for controlling power supply by the primary battery 54 is attached is provided on the first side light-shielding portion 13 (see FIG. 2). The first side light-shielding surface 1
3a, provided in an arrangement corresponding to a particularly right-handed user.

As shown in FIG. 6, the switch 56 for the shutter power supply projects the tip of the button 56a of the switch through a through hole 32b formed in the second side light shielding portion 32, which will be described later. By pushing to
Power supply of a shutter power supply by the primary battery 54 is controlled.

Further, a left side substrate 59 to which a shutter power supply jack 58 for receiving the operation power of the liquid crystal shutter from the liquid crystal shutter eyeglass connection terminal of the television receiver is mounted is provided on the first side light shielding portion 13. It is attached to the first side light shielding surface 13a on the other side (the right side in FIG. 2) of the side light shielding portion,
It is provided in an arrangement corresponding to the user viewing from the left side toward the television receiver.

As shown in FIG. 7, a plug 7 at the other end of the connection cord 70 whose one end is connected to the shutter power supply jack 58 is connected to the shutter switching output terminal of the television receiver.
By inserting 1 in the direction of arrow D, shutter operation power is supplied independently of the control by the shutter power switch 56, and the liquid crystal shutter is automatically opened and closed.

As described above, the primary battery 54, the battery holder 55, and the shutter power switch 5 attached to the liquid crystal shutter glasses 1 and in particular to the first side light-shielding portion 13.
6. The shutter power supply jacks 58 and the electric components such as the right side substrate 57 and the left side substrate 59 for connecting them are distributed to the right and left first side light shielding surfaces 13a by their own weights. The arrangement is made in consideration of the right and left balance of the glasses.

In FIGS. 2 and 3, the ear hook portion 20 diffracts the ear hook portion approximately 90 degrees inward to accommodate liquid crystal shutter glasses like ordinary glasses.
A hinge 21 called a hinge in a normal spectacle frame is provided at an abutting portion with the first spectacle frame 10, and the hinge is screwed to the first spectacle frame 10 with a screw 22.

Further, a through hole 23 for passing a string is formed at the end of the ear hook portion 20 in order to prevent the liquid crystal shutter glasses from being lost when attaching or detaching them.

Next, referring to FIG.
Is composed of a second front light shielding portion 31 having a second front light shielding surface 31a and a second side light shielding portion 32 having a second side light shielding surface 32a.

The second spectacle frame 30 is fitted to the first spectacle frame 10 so as to sandwich the front substrate 53, the right side substrate 57, the left side substrate 59, and the like.
The first eyeglass frame 10 is attached from the face side by screws not shown.

Similarly to the first front light-shielding part 12, the second front light-shielding part 31 has a pair of openings 33 corresponding to the left and right eyes for looking outside through the liquid crystal shutter 51.
Are formed in a rectangular shape facing the opening 14. Furthermore,
The second front light-shielding portion 31 is provided with a through hole 34 through which the reception sensor 52 is exposed.

The second spectacle frame 30 includes the second eyeglass frame.
An upper edge 35 on the upper side of the front light shielding portion 31, a lower edge 37 on a lower side including the nose hook portion 36 of the second front light shielding portion, and side edges 38 on both sides of the second side light shielding portion 32, A step is formed with a step substantially equal to the thickness of the protective sheet corresponding to the outer shape of the protective sheet 40 described later. Then, along the edge of the step, the protective sheet is adhered to the second front light shielding surface 31a and the second side light shielding surface 32a.

Accordingly, the liquid crystal shutter glasses are provided with the respective edges formed on the second glasses frame 30 and the protective sheet 40.
Can be adapted to various designs by changing the shape of the second light-shielding portion 31 and the second side light-shielding portion 32 with the protective sheet. Can be hardly seen from the outside.

In the protective sheet 40, a light-transmitting resin sheet formed in the shape of a film is subjected to a mirror finish of vacuum deposition using a glossy material made of a colorable metal substance such as magnesium, and the reflection is performed. Since most of the external light is reflected by the mirror finishing, reflection on the surface of the liquid crystal shutter due to unnecessary external light passing through the protective sheet and entering the liquid crystal shutter is prevented.

As described above, since the protective sheet 40 is made to have a mirror finish, a part of the extraneous light passes through the protective sheet and enters the liquid crystal shutter. It does not prevent the reflection on the liquid crystal shutter surface by simply dimming the external brightness like the liquid crystal shutter glasses attached to the front of the camera, and does not prevent only the glare of extraneous light like sunglasses. For example, the external brightness when wearing glasses such as a half mirror can be maintained by reflecting mirror finishing.

Further, since the reflector finish is processed by vacuum deposition using a glossy material, the glossiness of the reflector can be appropriately changed by adjusting the deposition time, and the glossy material can be colored. The liquid crystal shutter glasses such as sunglasses can be designed to have a design by appropriately changing the coloring material.

As described above, in the above embodiment, the shutter power switch is provided on the right side of the liquid crystal shutter glasses, the shutter power jack is provided on the left side of the glasses, and these electric components are connected to the right side of the glasses. Arrange on the left side so that the weight balance is balanced.

Thus, fatigue caused by the imbalance of the right and left weight balance on the nose and the ear when the user wears the liquid crystal shutter glasses and uses the liquid crystal shutter for a long time is reduced.

However, the above description is an example for explaining the present invention, and should not be construed as limiting the scope of the invention described in the claims or reducing the scope thereof.
For example, according to the present invention, by arranging electrical components such as a shutter power switch or a shutter power jack on the right and left sides of the liquid crystal shutter glasses so as to balance the weight, the balance on the nose and ears can be reduced. It is possible to reduce the user's fatigue due to the offset. In addition to being able to deal with right-handed and left-handed users, it is also possible to deal with users who watch from the right and left sides of the television receiver.

As described above, the configuration of each part of the present invention is not limited to the above-described embodiment, but may be variously modified within the technical scope described in the claims.

[0050]

As described above, according to the liquid crystal shutter glasses for a stereoscopic video reproduction system of the present invention, the primary battery, the shutter power switch, the shutter power jack, and the substrate are provided on the left and right side light shielding portions of the liquid crystal shutter glasses. Since the electric components such as the liquid crystal shutter glasses are distributed and arranged so that the left and right balance of the liquid crystal shutter glasses is equal, the own weight of the liquid crystal shutter glasses can be prevented from being biased to either the left or right, and when the glasses are worn. The weight balance on the nose and ears is no longer biased. Therefore, pain in the left or right of the nose and ear when using the LCD shutter glasses for a long time,
In addition, the user's fatigue when viewing a stereoscopic video can be reduced.

Further, since the shutter power supply jacks are disposed at the lower ends of the left and right side light shielding portions of the liquid crystal shutter glasses, respectively, the jacks can be connected to the liquid crystal shutter glasses desired by the user. Provided are liquid crystal shutter glasses that allow the user to select a right-handed or left-handed one when viewing stereoscopic images while wearing the liquid crystal shutter glasses, and that do not select a position where the user views the television receiver. It has a unique effect that it can be performed.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of liquid crystal shutter glasses viewed from the front.

FIG. 2 is an exploded perspective view of the liquid crystal shutter glasses in FIG.

FIG. 3 is an overall perspective view of the liquid crystal shutter glasses viewed from the rear.

4 shows a side view wearing liquid crystal shutter glasses, FIG. 4a showing a non-wearer of glasses and FIG. 4b showing a wearer of glasses, respectively.

FIG. 5 is an explanatory diagram showing a state in which a primary battery of liquid crystal shutter glasses is attached and detached.

FIG. 6 is an explanatory diagram showing a shutter power switch operation of the liquid crystal shutter glasses.

FIG. 7 is an explanatory view showing a shutter power jack operation of the liquid crystal shutter glasses.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Liquid crystal shutter glasses 10 1st spectacle frame 11 1st upper shading part 12 1st front shading part 13 1st side shading part 30 2nd spectacle frame 31 2nd front shading part 32 2nd side shading part 51 Liquid crystal shutter 54 Primary battery 56 Shutter power switch 58 Shutter power jack

Claims (3)

(57) [Claims] 1. A liquid crystal shutter is disposed on each of a pair of left and right lens units, and the liquid crystal shutter is alternately opened and closed by application of a control signal from the outside in response to switching between left and right images on a monitor screen in a three-dimensional image reproduction system. Liquid crystal shutter glasses having a control signal receiving unit for receiving the liquid crystal shutter and the control signal on a front surface thereof, and shielding external light incident from above the head with the glasses on the frame of the liquid crystal shutter glasses. An upper light-shielding portion, a front light-shielding portion for shielding unnecessary external light to the face, and a side light-shielding portion for shielding external light incident from the side of the head, and an electric component provided in the liquid crystal shutter glasses. Liquid crystal shutter eyes for a three-dimensional image reproduction system, wherein the liquid crystal shutter eyes are distributed to the left and right side light-shielding portions so as to make the weight balance of the glasses uniform. . 2. A primary battery for supplying the electric components with operating power to the liquid crystal shutter, a shutter power switch for controlling power supply by the battery, and a shutter power jack for externally receiving operating power of the liquid crystal shutter. 2. The liquid crystal shutter glasses for a stereoscopic video reproduction system according to claim 1, wherein the liquid crystal shutter glasses are configured by a board and the like for connecting them. 3. A liquid crystal shutter is provided in each of a pair of left and right lens units, and the liquid crystal shutter is alternately opened and closed by application of a control signal from the outside in response to switching between left and right images on a monitor screen in a stereoscopic image reproduction system. Liquid crystal shutter glasses having a control signal receiving unit for receiving the liquid crystal shutter and the control signal on a front surface thereof, and shielding external light incident from above the head with the glasses on the frame of the liquid crystal shutter glasses. An upper light-shielding portion, a front light-shielding portion for blocking unnecessary external light to the face, and a side light-shielding portion for shielding external light incident from the side of the head, and the left and right side light-shielding portions of the liquid crystal shutter glasses. At the bottom of
Liquid crystal shutter glasses for a stereoscopic video reproduction system, wherein shutter power jacks for receiving the operation power of the liquid crystal shutter from outside are arranged.