KR20030087092A - Eye glasses type monitor - Google Patents

Abstract

PURPOSE: An eye glasses type monitor is provided to miniaturize the eye glasses type monitor by reducing the number of components and using an OLED(Organic Light Emitting Diode). CONSTITUTION: An eye glasses type monitor includes an image output portion, an image transmission enlargement portion, an OLED(5), a beam splitter(2), and a concave mirror(1). The image output portion receives the image information from the outside and outputs the received image information. The image transmission enlargement portion transmits the output image of the image output portion or enlarges the output image of the image output portion. The OLED is used as an image output portion. The image transmission enlargement portion is formed with a prism.

Description

Glasses type video display device {EYE GLASSES TYPE MONITOR}

The present invention provides an eye glasses type Moniter;

IGM.) More specifically, the video display device

Smaller size by using OLED (Organic Light Emitting Diode)

It is about the composition of IGM which can be configured to be lightweight.

In general, the prior art designation of the present invention is a head mounted display.

(Head Mounted Display; hereinafter referred to as HMD).

IGM outputs video from video output devices such as video devices, TVs or computers

Device to display an image in front of the user's eyes by inputting

It is a device that allows you to enjoy the enlarged image like a large screen. In other words,

Using a pair of video output devices that can output images to both eyes,

A device capable of delivering images and each image at a predetermined magnification from left and right

By allowing users to see enlarged virtual images, users can enjoy larger screens.

It can be. The structure of a general HMD is described with reference to FIGS. 1 and 2.

1 is an explanatory diagram illustrating a principle of image enlargement of a general HMD. On this device

The reflector constituting the imaging system should use a convex mirror or a concave mirror.

There is a method, but generally use a concave mirror to correct for chromatic aberration

Many methods have been adopted, and in FIG. 1 and FIG.

The general configuration is illustrated.

In FIG. 1, when the radius of the concave mirror 1 is R, the vertex of the concave mirror Ver-

The focal point F is formed at a point corresponding to 1/2 of the radius from tex). And awards

If the object is placed in the inner side of the focal point F (near between the reflecting mirror and the focusing point),

The enlarged upright virtual image I is imaged on the reflection side of the concave mirror 1 by a pull force. this

The formulation virtual image (I) formed by the principle as

By this, a large screen can be enjoyed by this apparatus.

2 shows a configuration of a conventional HMD. Typical HMD as shown

The display unit is composed of an LCD on which an image input from the outside is displayed.

(4), and the backlight (3) for supplying illumination to the image of the display unit 4 and the

A semi-reflective mirror 2 for changing the optical path of the image on the display 4, and

Establishment of the image reflected by the semi-reflective mirror 2 using the above-described principle

It is comprised including the concave mirror 1 for forming the virtual image (I).

The display unit 4 mainly composed of LCD displays an external image signal.

Ray. And the backlight 3 is half the image displayed on the display 4

Project toward the reflector 2, the semi-reflective mirror 2 is provided by the backlight (3)

Part of the light being transmitted through and reflecting the other part toward the concave mirror 1.

do. The semi-reflective mirror 2 is then positioned within the focal length as described above.

The upright image is formed by the concave mirror 1. like this

The formed image can be viewed by the user through the semi-reflection mirror (2)

Will be.

As described above, according to the conventional structure, the display for transmitting the image

There must be two parts of the ray part 4 and the backlight 3 to generate and transmit the image.

The structure itself is complicated, heavy, electrical

As a result of unnecessary power consumption.

And a semi-reflective mirror (2) and a concave mirror (1), which are means of transmitting and expanding images.

Both of them occupy volume and weigh like the above-described display means.

By doing so inconveniences the user.

As such, since IGM is a personal electronic device, power consumption and portability used

Cannot be ignored. To improve this, develop low-power parts

The overall size and structure are important factors. Thus conventional

It can be seen that there is a limitation in constructing the IGM with the HMD structure.

The present invention is to solve the above-mentioned disadvantages, it can be further miniaturized

Its purpose is to provide a user with an IGM.

Another object of the present invention is to simplify the components and to simplify the construction of the IGM.

To the user.

1 illustrates an example of a general image magnification principle.

2 is a schematic view showing the configuration of a conventional HMD.

3 is a simplified schematic diagram of an image output device according to the present invention.

3 is a simplified diagram using an existing optical system.

Figure 4 shows the optical system and image display means of the IGM according to the present invention.

Explanation of symbols for the main parts of the drawings

1 ...... recess

2 ...... reflective mirror

3 ...... backlight

4 ...... LCD

5 ...... OLED

IGM according to the present invention for achieving the above object, as shown in Figure 4 from the outside

Organic thin film electroluminescent diode (5) for displaying an input image (Organic Light

Emitting Diode; Hereinafter referred to as OLED.)

Can be explained by the prism.

First, the video output device, which is the first problem presented, is described.

I will. Conventional HMD requires LCD 4 and backlight 3 to display images

However, the present invention can replace the above two parts only with the OLED (5).

This reduces the number of parts, light weight, and low power consumption.

Here, the OLED 5 will be briefly described as follows.

Thin film thickness by developing multilayer thin film by vacuum deposition and high quantum efficiency

Is only 1,000 Å and can be driven at voltages as low as 10 volts.

The device was developed by Tang in 1987. From this time organic by single molecule deposition method

Thin film electroluminescent diodes have been developed

Low voltage drive and low power consumption, self-illumination, fast response speed, wide viewing angle, light weight

It has advantages such as thinness and low production cost.

By using the OLED 5 described above, the effect of making the IGM small and light can be expected.

Can be.

The second issue will be described with respect to the optical system.

To replace the concave mirror (1) and the semi-reflective mirror (2) described in Figures 2 and 3

Prism of 4 can maximize the effect. The prism shown in FIG.

This is a kind of aspherical lens, which is briefly described as follows.

In general, the lens is made of spherical surface, so that the lens

The focal position will be different, resulting in spherical aberrations that compromise the sharpness of the image.

do. This phenomenon is more pronounced with larger apertures.

The lens developed for this purpose is an aspheric lens. Normally, the lens will function properly.

Under as many conditions as possible, the fewer lenses available, the more transmittance the lens will have.

Higher spherical aberration and lower production costs

Has the advantage.

As a result, the prism is used to improve the image quality of IGM and to reduce the size and weight.

The effect can be maximized.

By implementing the IGM in the manner described above, the volume of the entire IGM is minimized.

Low power consumption products can be achieved by using lightweight, lightweight, and efficient components.

It is possible to provide more advanced picture quality to the user.

As described above, according to the present invention, the following effects are expected.

Can be.

First of all, by reducing the number of parts, IGM can be made smaller and lighter.

Because it can be driven by electric power, you can use the battery longer.

It is effective to implement various convenient functions.

And, from the user's point of view, a product with clearer and improved image quality

Therefore, this IGM can be used more conveniently, and the producer has a simple structure.

And assembling can be expected to reduce the production cost effect.

Claims (2)

Image output means for outputting image information input from the outside; Image transmission magnification for transmitting the image by the image output means and enlarging it to a predetermined level Way; And a semi-reflective mirror and a concave mirror, which are the image output means and the OLED and the image transmission and enlargement means. Image output means for outputting image information input from the outside; Image transmission by image output means and image transmission magnification to enlarge to a predetermined level Way; Configuring the OLED as the image output means and the prism as the image transmission magnification means. The display device characterized by the above-mentioned.