JPH095674A - Liquid crystal shutter spectacles for stereoscopic video reproducing system - Google Patents

Abstract

PURPOSE: To provide liquid crystal shutter spectacles for a stereoscopic video reproducing system capable of reproducing a stereoscopic video without necessitating the battery exchange for the liquid crystal shutter spectacles. CONSTITUTION: The liquid crystal shutter spectacles 1 are provided with a liquid crystal shutter 51 and a control signal receiving part 52 for receiving a control signal on the front side of the spectacles 1, and the spectacles are provided with an upper light shielding part 11 for shielding external light made incident from above the head part in a state that the spectacles are hung on the spectacles frame 10 of the spectacles 1, a front light shielding part 12 for shielding the undesired external light made incident on the face and a side light shielding part 13 for shielding the external light made incident from the side of the head part, and at least on the upper light shielding part 11, a solar battery 54 for photoelectrically converting the external light and supplying an operating power to the liquid crystal shutter 51 is arranged corresponding to left and right eyes.

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 image reproducing system for viewing reproduced images by a stereoscopic image reproducing device as stereoscopic images, and more particularly to a battery for shutter power supply for supplying operating power for opening and closing the liquid crystal shutters. Is.

[0002]

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

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

Further, in the shutter type liquid crystal glasses, as a power supply means for opening and closing the liquid crystal shutter,
A shutter power supply jack for receiving from the external device (for example, a liquid crystal shutter glasses connection terminal of a television receiver) is arranged at the lower end of the shutter near the shutter, and a primary battery is built in the vicinity of the jack. A shutter power switch for controlling the supply of operating power is arranged.

The shutter power supply jack supplies the operating power to the liquid crystal shutter through the connection cords having the plugs connected to both ends of the liquid crystal shutter eyeglass connection terminal of the television receiver as described above. Can be used as cord-type liquid crystal shutter glasses in which the liquid crystal shutter automatically opens and closes.

The primary battery is built in the liquid crystal shutter glasses and supplies operating power to the liquid crystal shutters. When the battery is mounted on the liquid crystal shutter glasses, the supply of operating power to the liquid crystal shutters is controlled. It can be used as cordless liquid crystal shutter glasses which does not use a connection cord based on the switching operation of the shutter power supply switch.

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

However, when the liquid crystal shutter glasses are used cordlessly for the primary battery, battery replacement occurs due to consumption of the battery, and this battery replacement has been a troublesome task for the user. That is, as the primary battery used for the liquid crystal shutter glasses, a lithium battery generally called a button battery is used, and the battery is used as a power supply means for a camera or the like, but is not general-purpose in consumer electric devices, When the battery is exhausted and needs to be replaced, it is necessary to purchase a new battery or prepare a spare battery separately.

[0009]

SUMMARY OF THE INVENTION The present invention is intended to solve the above-mentioned problems associated with shutter-type liquid crystal eyeglasses, and is capable of reproducing cordless stereoscopic video without the need for battery replacement of the liquid crystal shutter eyeglasses. Provided are liquid crystal shutter glasses for a video reproduction system.

[0010]

In order to achieve the above object, the liquid crystal glasses for a stereoscopic image reproducing system according to the present invention are provided as a first embodiment.
In addition, liquid crystal shutters are respectively disposed on the pair of left and right lens parts, and the liquid crystal shutters are alternately opened / closed in response to switching of left and right images on a monitor screen in a stereoscopic image reproduction system by applying a control signal from the outside. In the spectacles, a liquid crystal shutter and a control signal receiving unit for receiving a control signal are provided on the front surface of the spectacles. Has a front light-shielding portion that shields unnecessary extraneous light to, and a side light-shielding portion that shields extraneous light that enters from the side of the head,
A solar cell that photoelectrically converts external light and supplies operating power to the liquid crystal shutter is arranged at least in the upper light-shielding portion so as to correspond to the left and right eyes.

Secondly, liquid crystal shutters are respectively arranged on the pair of left and right lens portions, and the liquid crystal shutters are applied by a control signal from the outside according to the switching of the left and right images on the monitor screen in the stereoscopic image reproducing system. In the liquid crystal shutter glasses that alternately open and close, a liquid crystal shutter and a control signal receiving unit that receives a control signal are provided on the front surface of the liquid crystal shutter glasses, and external light is incident from above the head of the liquid crystal shutter glasses while the glasses are worn. Has an upper light-shielding portion that shields the face, a front light-shielding portion that shields unnecessary external light to the face, and a side light-shielding portion that shields external light incident from the side of the head. A solar cell that photoelectrically converts the light to supply operating power to the liquid crystal shutter is arranged corresponding to the left and right eyes, and the light of the solar cell is provided on the left and right side light-shielding portions. Wherein the secondary battery to charge the electric power obtained by the conversion to the arrangement of each.

[0012]

As described above, a pair of solar cells are arranged on at least the upper light-shielding portion of the spectacle frame corresponding to the left and right eyes of the liquid crystal shutter glasses, and the external light radiated to the liquid crystal shutter glasses by the solar cells is a power source. Photoelectrically converted to. Then, the electric power obtained by the photoelectric conversion by the solar cell is supplied to the liquid crystal shutter.

Further, the secondary battery is provided on the left and right side light-shielding portions of the first spectacle frame, and the electric power obtained by photoelectric conversion of the solar cell is used for the secondary battery even when the liquid crystal shutter spectacles are not used. Be charged.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 to FIG. 6 are all embodiments showing liquid crystal shutter glasses for a stereoscopic image reproducing system according to the present invention.

FIG. 1 shows an overall perspective view of the liquid crystal shutter glasses as seen from the front, FIG. 2 shows an exploded perspective view of the liquid crystal shutter glasses as shown in FIG. 1, and FIG. 3 shows an overall perspective of the liquid crystal shutter glasses as seen from the rear. The figure is shown.

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, and FIG. The state diagram in which the secondary battery is attached and detached is shown. FIG. 6 is an explanatory diagram showing a shutter power supply switch of the liquid crystal shutter glasses.

1 to 6, the same parts are designated by the same reference numerals.

First, referring to FIG. 1, liquid crystal shutter glasses 1
Is a first spectacle frame 1 integrally molded of synthetic resin or the like.
0, an ear hook 2 formed by bending its tip into a chord shape
0, and a second spectacle frame 30 formed integrally with the first spectacle frame 10 so as to face the first spectacle frame 10 and a protective sheet 40 formed of a light transmissive resin or the like.

Then, in FIG. 2, the first spectacle frame 10 is used.
Is a first upper light-shielding portion 11 having a first upper light-shielding surface 11a that shields external light incident from above the head while the liquid crystal shutter glasses 1 are attached, and a first upper light-shielding portion 11 that shields unnecessary external light to the face. It is composed of a first front light-shielding portion 12 having a first front light-shielding surface 12a and a first side light-shielding portion 13 having a first side light-shielding surface 13a that shields external light incident from the side of the head.

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

As described above, since the nose pad 16 is configured to be freely attached to and detached from the projecting portion 15a, the nose pad can be detached and cleaned from dirt caused by sweat and the like. Even if the nose pad deteriorates, it can be easily replaced. Also, the nose pad 16
Is molded of rubber or resin having viscoelasticity. For this reason, the nose pad 16 absorbs an external impact applied to the liquid crystal shutter eyeglasses 1 to prevent injury to the nose portion due to external force and damage to normal eyeglasses for a user wearing the eyeglasses.

Further, as shown in FIG. 3, the nose pad 16 contacts the nose when a user who does not wear normal glasses (hereinafter referred to as a non-wearer of glasses) wears the liquid crystal shutter glasses. The nose rest surface 16a in contact with the nose pad of ordinary eyeglasses referred to as eyeglass pad when a user wearing normal eyeglasses (hereinafter referred to as eyeglass wearer) wears liquid crystal shutter eyeglasses. It is composed of the back of the nose 16b.

When the liquid crystal shutter glasses are worn by the non-wearing person of the glasses shown in FIG. 4a, the non-wearing person of the glasses brings the nose hanging surface 16a into contact with the slope of the nose.
The eyeglasses are mounted in a stable state, and the distance between the liquid crystal shutter eyeglasses and the face is set.

When the spectacle wearer wears the liquid crystal shutter spectacles shown in FIG. 4b, when the spectacle wearer abuts the nose hanging surface 16a on the slope of the nose and wears the spectacles, the liquid crystal shutter spectacles 1 The normal spectacles 60 are lifted by the movement of the backside 16b of the nose rest associated with wearing, and the distance between the liquid crystal shutter eyeglasses and the face is set by the contact of the nose rest surface 16a with the slope of the nose. Therefore, when the liquid crystal shutter eyeglasses 1 are attached, the normal eyeglass pad 61 is simply carried on the nose rest back surface 16b, and the liquid crystal shutter eyeglasses 1 are attached in this state.

In other words, when the spectacle wearer wears the liquid crystal shutter spectacles, the lens surface of the normal spectacles 60 is only slightly raised by the nose pad 16, and the spectacle pad 61 contacts the nose. Don't touch Therefore, the space between the liquid crystal shutter and the face is set at substantially the same interval as when the liquid crystal shutter glasses are worn by the non-wearing person.

Next, the first front light-shielding surface 12a shown in FIG.
Includes a pair of liquid crystal shutters 5 related to the liquid crystal shutter glasses 1.
1 and 3 for controlling the opening / closing operation of the liquid crystal shutter
The front substrate 53 to which the control signal receiving section 52 including a receiving sensor for receiving the D instruction signal is attached is attached.

An upper substrate 55 having a pair of solar cells 54 for supplying operating power to the liquid crystal shutter 51 is attached to the first upper light-shielding surface 11a corresponding to the left and right eyes. Then, the solar cell 54 photoelectrically converts the external light incident from above the head and supplies the electric power obtained by the photoelectric conversion to each of the liquid crystal shutters 51.

Further, ribs 17a and 18a are formed in parallel with each other on the left and right first side light-shielding surfaces 13a so as to have a step, and operating power is supplied to the liquid crystal shutter 51 so as to face the ribs. Battery holder 5 accommodating the secondary battery 56
Ribs 17b and 18b are formed in parallel so as to guide the insertion of 7. Further, at the lower end of the first side light-shielding portion 13, there is a notch portion 19 corresponding to the position of one end of the rib 18a and one end of the rib 18b, which allows insertion of the collar portion 57c of the battery holder 57. It is recessed.

As the secondary battery 56, a nickel-cadmium battery generally called a nickel-cadmium battery is used, and the battery is usually charged with electric power and is discharged for data compensation when an abnormality such as power failure occurs. As a backup power supply means to be used, it is generally used in electronic devices and consumer electric devices. Then, in the liquid crystal shutter glasses, the secondary battery 56 is charged with the electric power obtained by the photoelectric conversion by the solar cell 54.

Therefore, when the user uses the liquid crystal shutter glasses, the electric power photoelectrically converted by the solar cell 54 is supplied to the liquid crystal shutter 51 based on the switch operation of the shutter power switch 58 described later. At the same time, the surplus power is supplied to the secondary battery 56 and charged.

When the user does not use the liquid crystal shutter glasses, the electric power photoelectrically converted by the solar cell 54 is supplied to the secondary battery 56 regardless of the switch operation of the shutter power switch 58 described later. The battery is charged at any time.

As described above, when the liquid crystal shutter glasses are used for the secondary battery 56, the surplus power photoelectrically converted by the solar battery 54 is also supplied, so that the secondary battery provides ambient brightness. When the solar cell 54 is dark and the photoelectric conversion rate of the solar cell 54 is low, operating power is supplied to the liquid crystal shutter 51 so as to complement the solar cell.

Then, as shown in FIG. 5A, the secondary battery 56 is mounted by accommodating the battery in the battery holder 57 and then inserting the holder in the direction of the arrow A from the cutout portion 19. The locking pieces 57a and 57b of the
7a and 17b are attached to the other end of the battery holder 57 while being locked to the other ends.

Similarly, as shown in FIG. 5b, the secondary battery 56 can be removed by pushing down the slot 57d formed in the collar 57c in the direction of arrow B so that the engaging pieces 57a and 57b are removed. The ribs 17a and 17b are disengaged from the other ends, and in the state where the ribs 17a and 17b are held by the battery holder 57, they are further pulled out in the direction of arrow B and removed.

On the right side, a shutter power switch 58 for controlling the power supply to the liquid crystal shutter by the secondary battery 56 is attached to the first side light-shielding portion 13 based on the fact that the liquid crystal shutter glasses are not used. The surface substrate 59a is attached to the first side light-shielding surface 13a on one side (on the left side in FIG. 2) of the first side light-shielding portion, and is provided in an arrangement suitable for a right-handed user.

Then, as shown in FIG. 6, the shutter power switch 56 projects the tip of the button 58a of the switch through a through hole 32b formed in a second side light-shielding portion 32, which will be described later. By pushing in the direction, the power supply of the shutter power source by the secondary battery 56 is controlled.

The liquid crystal shutter eyeglasses 1, especially the first
Electrical components such as the secondary battery 56 attached to the side light-shielding portion 13, the battery holder 57, the shutter power switch 58, and the left and right side substrates 59a and 59b connecting these components are left and right by the weight of the components. It is distributed to the first side light-shielding surface 13a and is arranged in consideration of the left-right balance of the liquid crystal shutter glasses.

Here, in the present embodiment, the shutter power switch 58 is configured to be attached to the right side substrate 59a, but it is provided on the left side substrate 59b so as to be arranged for left-handed users. Alternatively, the left and right side substrates 59a and 59b may be provided on the left and right side substrates 59a and 59b, respectively, so as to correspond to right-handed and left-handed users.

It should be noted that connectors (not shown) are arranged on the front substrate and the top substrate, and the connectors are used to connect the substrates to transmit a power supply and a signal system.

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

Further, the ear hooking portion 20 is formed with a through hole 23 for threading a string at the tip thereof in order to prevent the liquid crystal shutter glasses from being lost when they are attached and detached.

Next, referring to FIG. 2, the second spectacle frame 30
Is a second front light blocking portion 31 having a second front light blocking surface 31a,
The second side light shield 32 has a second side light shield 32a. Then, the second spectacle frame 30 is fitted into the first spectacle frame 10 so as to sandwich the front substrate 53, the upper substrate 55, the left and right side substrates 59a, 59b, etc. It is attached from the face side of the first spectacle frame 10.

In addition, the second front light-shielding portion 31, like the first front light-shielding portion 12, looks outward through the liquid crystal shutter 51, and therefore, a pair of openings 33 corresponding to the left and right eyes.
Is formed in a rectangular shape so as to face the opening 14. Furthermore,
The second front light shielding portion 31 is provided with a through hole 34 for exposing the control signal receiving portion 52.

The second eyeglass frame 30 has the second
An upper edge portion 35 is provided on an upper side of the front light shielding portion 31, a lower edge portion 37 is provided on a lower side including the nose hook portion 36 of the second front light shielding portion, and side edge portions 38 are provided on both sides of the second side light shielding portion 32. Corresponding to the outer shape of the protective sheet 40, which will be described later, a step portion is formed with a step substantially the same as the thickness of the protective sheet. Then, the protective sheet is attached to the second front light-shielding surface 31a and the second side light-shielding surface 32a along the edge of the step.

Therefore, the liquid crystal shutter eyeglasses include the edge portions formed on the second eyeglass frame 30 and the protective sheet 40.
A variety of designs can be accommodated by appropriately changing the shape of. Further, by forming the protective sheet 40 so as to cover substantially the entire surfaces of the second front light shielding portion 31 and the second side light shielding portion 32, the liquid crystal shutter 51 can be made invisible from the outside.

Further, the protective sheet 40 is obtained by subjecting a light-transmissive resin sheet formed in a film shape to a reflection mirror finish which is vacuum-deposited with a gloss material made of a colorable metal substance such as magnesium, and the reflection thereof is performed. Since most of the external light is reflected by the mirror finish, unnecessary external light that passes through the protective sheet and enters the liquid crystal shutter is prevented from being reflected on the surface of the liquid crystal shutter.

As described above, by making the protective sheet 40 a reflecting mirror finish, a part of the external light passes through the protective sheet and enters the liquid crystal shutter. It does not prevent the reflection on the surface of the liquid crystal shutter by simply darkening the external brightness, such as the liquid crystal shutter glasses attached to the front surface of the, and does not prevent the glare of external light such as sunglasses. The external brightness when wearing glasses such as a half mirror can be maintained by the mirror finishing.

Further, since the reflecting mirror finish is processed by vacuum vapor deposition using a glossy material, the glossiness of the reflecting mirror can be appropriately changed by adjusting the vapor deposition time, and the glossy material can be colored. Since it is formed of a metallic material, liquid crystal shutter eyeglasses such as sunglasses can be made to have a design by appropriately changing the coloring material.

The above description is merely an example for explaining the present invention, and should not be construed as limiting the invention described in the claims or reducing the scope.

That is, in the above-mentioned embodiment, a pair of solar cells are arranged corresponding to the left and right eyes in at least the upper light-shielding portion of the eyeglass frame of the liquid crystal shutter eyeglasses, and external light applied to the liquid crystal shutter eyeglasses is converted into electric energy. Although the photoelectric conversion is performed to supply the operating power to the liquid crystal shutter, for example, according to the present invention, the solar cell may be arranged not only in the upper light shielding portion but also in the front light shielding portion or the left and right side light shielding portions. As a result, the power supplied to the liquid crystal shutter can be increased to ensure the operation of the liquid crystal shutter.

As described above, it goes without saying that the structure of each part of the present invention is not limited to the above-described embodiment, and various modifications can be made within the technical scope described in the claims.

[0052]

As described above, according to the liquid crystal shutter eyeglasses for a stereoscopic image reproducing system of the present invention, a pair of solar cells are arranged in at least the upper light shielding portion of the eyeglass frame so as to correspond to the left and right eyes of the liquid crystal shutter eyeglasses. Since the solar cell photoelectrically converts the external light applied to the liquid crystal shutter glasses to supply the operating power to the liquid crystal shutters, the conventional primary battery is used as the power supply means for the liquid crystal shutter glasses. Battery replacement is unnecessary, and cumbersome replacement work for this can be stopped.

Further, secondary batteries are provided in the left and right side light-shielding portions of the first spectacle frame, and the secondary batteries are charged with electric power obtained by photoelectric conversion of the solar cells at any time. The battery is charged with electric power even when the user does not use the liquid crystal shutter glasses. As a result, there is no shortage of power supply for operating the liquid crystal shutters, and even if the user wears the liquid crystal shutter glasses and uses them for a long time, the liquid crystal shutter glasses can cordlessly reproduce a stereoscopic image. Play.

[Brief description of drawings]

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

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. 5 is a state diagram of attaching and detaching a secondary battery provided in the liquid crystal shutter glasses.

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

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Liquid crystal shutter spectacles 10 1st spectacle frame 11 Upper light-shielding part 12 Front light-shielding part 13 Side light-shielding part 51 Liquid crystal shutter 52 Control signal receiving part 54 Solar cell 56 Secondary battery

Claims (2)

[Claims] 1. A liquid crystal shutter is provided on each of a pair of left and right lens portions, and the liquid crystal shutter is alternately opened / closed in response to switching of left and right images on a monitor screen in a stereoscopic image reproduction system by applying a control signal from the outside. In the liquid crystal shutter eyeglasses, a liquid crystal shutter and a control signal receiving unit for receiving the control signal are provided on the front surface of the liquid crystal shutter eyeglasses to block external light incident from above the head of the eyeglass frame of the liquid crystal shutter eyeglasses. It has an upper light-shielding portion, a front light-shielding portion that shields unnecessary external light to the face, and a side light-shielding portion that shields external light incident from the side of the head. Stereoscopic image reproduction characterized in that solar cells for photoelectrically converting and supplying operating power to the liquid crystal shutter are arranged corresponding to the left and right eyes. The liquid crystal shutter glasses stem. 2. A liquid crystal shutter is provided on each of a pair of left and right lens portions, and the liquid crystal shutter is alternately opened / closed in response to switching of left and right images on a monitor screen in a stereoscopic image reproducing system by applying a control signal from the outside. In the liquid crystal shutter eyeglasses, a liquid crystal shutter and a control signal receiving unit for receiving the control signal are provided on the front surface of the liquid crystal shutter eyeglasses to block external light incident from above the head of the eyeglass frame of the liquid crystal shutter eyeglasses. The upper light-shielding portion, the front light-shielding portion that shields unnecessary extraneous light to the face, and the side light-shielding portion that shields extraneous light incident from the side of the head are provided. Solar cells that convert and supply operating power to the liquid crystal shutters are arranged corresponding to the left and right eyes, and the solar cells are provided on the left and right side light-shielding portions. Liquid crystal shutter glasses for stereoscopic video reproducing system, characterized in that the secondary battery to charge the electric power obtained by the photoelectric conversion are arranged, respectively.