JPH0630361A - Glasses type display device - Google Patents

Abstract

PURPOSE:To light a fluorescent light in a dark lighting state easily stimulating a fluorescent lamp in a glasses frame and to display the lighting state to an outside of the glasses frame when the light is lighted. CONSTITUTION:The glasses type display device is provided with liquid crystal display devices 2, 4 used to display a picture, a fluorescent lamp 18 giving a lighting light of the liquid crystal display devices, glasses frame 1 containing the liquid crystal display devices 2, 4 and the fluorescent light 18 while shielding external light, and a light guide means 20 used to lead an external light of the glasses frame 1 to the fluorescent lamp 18.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a spectacle type display for creating an artificial reality.

[0002]

2. Description of the Related Art Generally, in order to create a powerful artificial reality, a liquid crystal display device is housed in, for example, a glasses-type display which is fixed in front of the user like ski goggles. Therefore, the user magnifies and views the image of the liquid crystal display device through the magnifying lens.

By the way, this liquid crystal display device requires back illumination, and a fluorescent tube such as a cold cathode tube is generally used as a light source for this back illumination.

[0004]

However, a fluorescent tube generally has a drawback that it is difficult to light in the dark, which is called dark lighting. Therefore, when used as a backlight light source of a liquid crystal display device housed in a glasses-type display,
Since this fluorescent tube is housed in the spectacle frame in a light-shielded state, there is a problem that the light source is difficult to light when the spectacle display is used.

The present invention has been made in order to solve the above-mentioned problems, and it is a spectacle type that can easily turn on a fluorescent lamp and illuminate a liquid crystal display device to see an image even in the dark or in a dark lighting state. It is intended to provide a display.

[0006]

In the present invention, the above object is to provide a liquid crystal display device for displaying an image, a fluorescent lamp for providing illumination light to the liquid crystal display device, the liquid crystal display device and the fluorescent light. This is achieved by an eyeglass-type display including an eyeglass frame that shields the lamp from external light and stores the light, and a light guide unit that guides light outside the eyeglass frame to the fluorescent lamp.

[0007] Preferably, the light guide means has a light guide window.

Preferably, the light guide means comprises a light guide window provided on the spectacle frame and a light guide member provided between the light guide window and the fluorescent lamp.

Preferably, the light guide window is made of a translucent material. Further, the light guide means is used as an indicator for displaying the lighting of the fluorescent lamp outside the spectacle frame.

The spectacle frame may be provided with a first liquid crystal display device and a second liquid crystal display device, and the first liquid crystal display device and the second liquid crystal display device may be illuminated by one fluorescent lamp.

Preferably, the spectacle frame is provided with a first liquid crystal display device and a second liquid crystal display device, and
The liquid crystal display device of is illuminated by the first fluorescent lamp and
The liquid crystal display device may be configured to be illuminated by the second fluorescent lamp.

[0012]

The light from the outside of the spectacle frame is guided to the fluorescent lamp in the dark state through the light guiding means, and the fluorescent light is stimulated by the external light to facilitate the lighting of the fluorescent lamp. Further, when the fluorescent lamp is already turned on, the light of the fluorescent lamp is guided to the light guide means and the fluorescent lamp is turned on outside the glasses frame to display that the glasses-type display is in operation.

[0013]

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The examples described below are
Since it is a preferred specific example of the present invention, various technically preferable limitations are attached, but the scope of the present invention is, unless otherwise stated to limit the present invention, in the following description.
It is not limited to these modes.

FIG. 1 shows a preferred embodiment of the glasses-type display of the present invention, and FIG. 2 shows the internal structure of the embodiment of the glasses-type display.

The spectacle type display includes a spectacle frame 1, a first liquid crystal display device (LCD) 2, a second liquid crystal display device (LCD) 4, two magnifying lenses 6, 8, two sets of mirrors 10, 12, 14, 16 and 1 small fluorescent tubes 1
8, and the light guide means 20 and the like.

The spectacle frame 1 is preferably light-shielded so that external light does not enter the inside thereof, and the small fluorescent tube 18 is under the condition of dark lighting. Under such conditions, the fluorescent tube is difficult to light.

The first liquid crystal display device 2 and the second liquid crystal display device 4 are arranged facing each other in the spectacle frame 1 and can display an image based on a video signal from a control circuit (not shown). .

The magnifying lenses 6 and 8 are provided in the spectacle frame 1 and arranged at positions corresponding to both eyes of the user. The image displayed on the first liquid crystal display device 2 is reflected by the mirror 10 and can be magnified by the magnifying lens 6 to be guided to one eye of the user. Similarly, the image displayed on the second liquid crystal display device 4 can be reflected by the mirror 12 and magnified by the magnifying lens 8 to be guided to the other eye of the user.

The fluorescent tube 18 includes a first liquid crystal display device 2 and a second liquid crystal display device 2.
Plays the role of so-called backlight or backlight of the liquid crystal display device 4. When a switch (not shown) is turned on and the fluorescent tube 18 is turned on, the illumination light of the fluorescent tube 18 is reflected by the mirrors 14 and 16 and is reflected by the first liquid crystal display device 2 respectively.
The light is emitted as a backlight from behind and the second liquid crystal display device 4. The fluorescent tube 18 is, for example, a cold cathode tube, and its diameter is, for example, 4 mm.

The light guide means 20 is composed of a light guide window 22 and a light guide member 24, as shown in FIGS. The light guide window 22 is provided in a hole 23 located at the center front side of the spectacle frame 1 so that light outside the spectacle frame 1 can be transmitted. Therefore, for example, the light guide window 22 is made of translucent plastic, such as acrylic or polycarbonate,
It has a substantially disk shape, and is preferably colored red, green, blue or the like. Here, the diameter of the hole 23 provided with the light guide window 22 is, for example, 2 to 4 mm.

Further, the light guide member 24 can be made of, for example, preferably an inexpensive plastic optical fiber or a material having a characteristic similar to that, such as acrylic.

Further, the light guide member 24 serves to guide the external light L entering the light guide window 22 to the fluorescent tube 18 side when the fluorescent tube 18 is turned off as shown in FIG.

FIG. 5 shows a state in which the fluorescent tube 18 is not illuminated or extinguished. The fluorescent tube 18 is surrounded by the spectacle frame 1 and is in a dark lighting state without the above-mentioned light guide means 20. In such a dark lighting state, the fluorescent tube 1
When 8 is turned on, outside light L is introduced through the light guide window 22 and the light guide member 24 and guided to the fluorescent tube 18 unless the environment of use is dark. As a result, the external light L is emitted to the fluorescent tube 18.
Can be applied to prevent the dark lighting state, and the smooth lighting operation of the fluorescent tube 18 can be started.

Further, in the present embodiment, the light guide member 2
4 is the fluorescent tube 18 when the fluorescent tube 18 is turned on as shown in FIG.
A part of the illumination light L1 can be guided to the light guide window 22.
That is, the light guide window 22 serves as an indicator that can display outside the spectacle frame 1 whether the fluorescent tube 18 is on or off.

For example, if the fluorescent tube 18 is lit,
The light of the fluorescent tube 18 reaches the indicator / light guide window 22 through the light guide member 24, and the light guide window 22 shines red, so that it can be confirmed from the outside that the glasses-type display is operating. Therefore, it is possible to prevent the fluorescent tube 18 from being left unused when it is not used, and to prevent an erroneous operation such as pulling out a connection cord (not shown) even though the fluorescent tube 18 is turned on when the power is turned on.

The present invention is not limited to the above embodiment. The position of the light guide window also serving as the indicator is not particularly limited as long as it can guide the external light L, and can be freely arranged. For example, as shown in FIG. 7, the light guide window 122 which also serves as an indicator may be provided at the center of the upper portion of the spectacle frame 1.

The light guide member shown in FIG. 3 may be a light guide tube, for example. Further, when the light guide window 22 can be arranged near the fluorescent tube 18, the light guide member 24 may be omitted. If the light guide means is used only as the indicator, only the light guide window does not have to be used for the light guide member.

Further, FIG. 8 shows another embodiment of the glasses-type display of the present invention. The glasses-type display includes the glasses frame 201 and the first liquid crystal display device 20.
2, second liquid crystal display device 204, magnifying lens 206, 2
08, fluorescent tubes 218, 228 for backlight, liquid crystal display device control circuit / voice control circuit 230, headphone 2
It has 32, 234, a D / D converter 240, and a connector cable 242. The connector cable 242 is the output terminal 3 of the small-sized portable video tape recording / reproducing apparatus 300.
It is connected to 04. The recording / reproducing apparatus 300 has a battery 302. From the output terminal 304, the video signal, the audio signal, and the power supply are applied to the liquid crystal display device control circuit / audio control circuit 230 via the connector cable 242 and the D / D converter 240.

The D / D converter 240 includes a first liquid crystal display device 202 and a second liquid crystal display device 20 via a line.
It is connected to 4 and gives a video signal to these. The liquid crystal display device control circuit / voice control circuit 230 is connected to the first liquid crystal display device 202 and the second liquid crystal display device 2 via the line.
It is connected to 04. Headphones 232 and 234 are connected to a liquid crystal display device control circuit / voice control circuit 230 via a line, and a voice signal is given.

Fluorescent tubes 218 and 228 for backlight
Are arranged corresponding to the first liquid crystal display device 202 and the second liquid crystal display device 204, respectively. Magnifying mirror 2
Reference numerals 06 and 208 denote the first liquid crystal display device 202 and the first liquid crystal display device 202, respectively.
It is arranged corresponding to the second liquid crystal display device 204.
A user wearing or wearing the spectacle frame 201 can magnify and view the images displayed on the first liquid crystal display device 202 and the second liquid crystal display device 204 through the magnifying lenses 206 and 208. In addition to being able to do so, the sound can be heard through the headphones 232 and 234.

Two light guide windows 222 and 223 are preferably provided on the front side of the spectacle frame 201, and the light guide windows 222 and 223 correspond to the fluorescent tubes 218 and 228, respectively. External light is guided from the light guide windows 222 and 223 to the fluorescent tubes 218 and 228 under the dark lighting state.

As described above, the eyeglass-type display of this embodiment has a small or ultra-small liquid crystal display device (for example, a color liquid crystal display device having a size of 0.7 inch) in the eyeglass frame and a magnifying lens. Is designed to look as large as a large TV or projector.

As it is worn on the face like glasses, it is suitable for private use and has excellent portability and can be easily used outdoors or on a moving boarding ship such as a train. It can exhibit extremely excellent functions as a device. Also, unlike a normal LCD display, you can enjoy a powerful and enlarged screen with the music of the headphones.

Furthermore, the two-screen configuration corresponding to the left and right eyes is
It also has a feature that makes it easy to reproduce stereoscopic images.
It can be suitably used in the field of stereoscopic images.

[0035]

As described above, according to the present invention, even when the fluorescent lamp housed in the spectacle display is in the dark lighting state, the external light is guided to the fluorescent lamp and the fluorescent lamp is stimulated by the external light. Thus, the fluorescent lamp can be easily turned on and the image can be viewed immediately. Therefore, it is not necessary to use a separate power source or circuit for stimulating the fluorescent lamp, and it is possible to save space and reduce power consumption. Further, when the fluorescent lamp is on, the light of the fluorescent lamp can be guided to the outside of the spectacle frame and displayed as an indicator. Therefore, the operating state of the glasses-type display can be confirmed, and it is possible to prevent erroneous operations such as keeping the fluorescent lamp on when it is not needed and pulling out the connection cord when the power is turned on.

[Brief description of drawings]

FIG. 1 is an external perspective view showing a preferred embodiment of a glasses-type display of the present invention.

FIG. 2 is a perspective view showing an internal configuration of the embodiment of FIG. 1 of the present invention.

FIG. 3 is a perspective view showing a light guide means and a fluorescent tube by cutting the spectacle frame of the embodiment of FIG. 1 of the present invention in the middle.

FIG. 4 is a side view showing the cutting portion and the light guiding means shown in FIG. 3 of the present invention.

5 is a view for explaining that the fluorescent tube is in a dark lighting state and guides external light to the fluorescent tube through a light guide in the embodiment of FIG. 1 of the present invention.

FIG. 6 is a view for explaining that the light guide means displays the state in which the fluorescent tube is lit on the outside of the spectacle frame in the embodiment of FIG. 1 of the present invention.

FIG. 7 is a perspective view showing another embodiment of the present invention.

FIG. 8 is a perspective view showing another embodiment of the present invention.

[Explanation of symbols]

 1,201 Glasses frame 2,202 First liquid crystal display device 4,204 Second liquid crystal display device 6,8,206,208 Magnifying lens 10,12,14,16 Mirror 18,218,228 Fluorescent tube (fluorescent lamp) ) 20 light guide means 22 light guide window 24 light guide members 222, 223 light guide window

Claims (7)

[Claims] 1. A liquid crystal display device for displaying an image, a fluorescent lamp for providing illumination light to the liquid crystal display device, and a spectacle frame for housing the liquid crystal display device and the fluorescent lamp while shielding them from external light. A spectacles-type display, comprising: a light guide unit for guiding light outside the spectacle frame to the fluorescent lamp to the fluorescent lamp. 2. The glasses-type display according to claim 1, wherein the light guide means has a light guide window. 3. The light guide means comprises a light guide window provided in a spectacle frame, and a light guide member provided between the light guide window and the fluorescent lamp. Item 3. The glasses-type display according to item 1 or 2. 4. The spectacles type display according to claim 2, wherein the light guide window is made of a translucent material. 5. The spectacles mold according to claim 1, wherein the light guide means is configured as an indicator for displaying the lighting of a fluorescent lamp to the outside of the spectacle frame. display. 6. A structure in which the eyeglass frame includes a first liquid crystal display device and a second liquid crystal display device, and the first liquid crystal display device and the second liquid crystal display device are illuminated by one fluorescent lamp. The glasses-type display according to any one of claims 1 to 4, characterized in that. 7. The spectacle frame includes a first liquid crystal display device and a second liquid crystal display device, the first liquid crystal display device is illuminated by a first fluorescent lamp, and the second liquid crystal display device is a second liquid crystal display device. The glasses type display according to any one of claims 1 to 4, wherein the glasses type display is configured to be illuminated by the second fluorescent lamp.