KR102377397B1 - Device for Augmented Reality using micro lens - Google Patents

Abstract

An augmented reality device using a microlens according to an embodiment of the present invention includes a first transparent substrate on which a blocking pattern that blocks external light is formed on the front or back side, and a light-emitting pixel portion through which light is output is formed on the back side; And a second transparent substrate formed with the same diameter as the blocking pattern and provided with a fine lens formed on the same line as the light-emitting pixel portion, wherein the light output from the light-emitting pixel portion is refracted by the fine lens. It may be characterized in that an image is formed on the optic nerve, and a virtual image is generated at a distance of 20 cm or more in front of the microlens.

Description

Augmented reality device using micro lens {Device for Augmented Reality using micro lens}

The present invention relates to an augmented reality device using a micro-lens, and more specifically, the light output from the light-emitting pixel portion finely provided at one end of the transparent substrate passes through the micro-lens and forms an image on the retina of the optic nerve. By preventing interference with light reflected from external objects, it is possible for the image to be output from the light-emitting pixel unit to appear as a virtual image, and by adjusting the angle of the transparent substrate, the angle of incidence or transmission of light passing through the microlens can be adjusted. This is about an augmented reality device using a micro-lens that allows

Recently, as technology has developed, Augmented Reality (AR) technology, which is implemented to project a virtual environment in a real space, is attracting attention.

It is treated in a similar form to virtual reality (VR) in that it uses computer graphics to make the virtual environment feel realistic, but virtual reality (VR) is implemented as a virtual image rather than a real image, so the real environment is On the other hand, augmented reality (AR) has the characteristic of increasing the sense of reality because images implemented by computer graphics are mixed with the real environment and additional images appear in the real environment.

For this reason, recently, research has been actively conducted to utilize augmented reality (AR) in various media and industrial fields such as medical, media, education, manufacturing, and games, and modules to implement augmented reality (AR) are gradually being developed. As it becomes smaller, it is developing into a portable augmented reality (AR) module.

They are being developed in the form of glasses that can be worn by users to carry and implement augmented reality (AR) in real time in a real environment, but these problems are solved because the shape and volume are not suitable as a module for implementing augmented reality (AR). It is necessary to improve.

As an example of such an augmented reality (AR) module, Korean Patent No. 10-2012299, 'Virtual reality and augmented reality device with blue light blocking means', blocks blue light and allows dust and moisture to penetrate into the image display unit. a blue light blocking and dust penetration prevention means, a lens for blue light blocking and dust penetration prevention means, and a blue light blocking filter formed on a surface opposite to the lens of the blue light blocking and dust penetration prevention means, and is formed as a head wearable device. A technology for a head wearable device used as a virtual reality (VR) or augmented reality (AR) device is disclosed.

However, the conventional virtual reality (VR) or augmented reality (AR) device as described above only discloses a means of protecting the virtual reality (VR) or augmented reality (AR) device from external dust or moisture, and is portable. No other means of increasing gender were disclosed.

In addition, in Korea Patent Publication No. 10-2019-0105854, 'Electronic Device', the main body, which is installed with a display unit that is detachably coupled and a control unit that generates an image and implements it on the display unit, can be worn on the user's head. A technology for an electronic device that does this has been disclosed.

However, Korean Patent Publication No. 10-2019-0105854 only discloses a technology for a configuration that can be used by replacing a specific configuration depending on the intended use, thereby increasing portability and implementing various functions with one module. There is no disclosed means for doing so.

As described above, it is designed to be portable and usable in daily life. It is necessary to improve it so that it can be used by switching between augmented reality (AR) or virtual reality (VR), but the conventional augmented reality (AR) or virtual reality (VR) ) The device has limitations that make it unsuitable for solving these problems.

Therefore, it is urgent to improve these problems.

The present invention is intended to solve the above problems, and is provided with a microlens that transmits the light output from the light-emitting pixel unit so that the image is formed on the retina of the optic nerve, and a blocking pattern that blocks external light is placed at regular intervals. A microlens is formed so finely that it does not block the path of light coming from outside to the retina of the optic nerve and blocks light heading to the microlens, allowing external objects and virtual images output from the light-emitting pixel to be seen at the same time. The purpose is to provide augmented reality devices using augmented reality devices.

An augmented reality device using a microlens according to an embodiment of the present invention to solve the above problem has a blocking pattern that blocks external light formed on the front or rear part, and a light-emitting pixel unit that outputs light is formed on the rear part. First transparent substrate; And a second transparent substrate formed with the same diameter as the blocking pattern and provided with a fine lens formed on the same line as the light-emitting pixel portion, wherein the light output from the light-emitting pixel portion is refracted by the fine lens. This causes an image to form on the optic nerve, so that a virtual image can be created at a distance of 20 cm or more in front of the microlens.

At this time, the blocking pattern is formed in a size of 2 mm or less, and is formed at regular intervals on the front or back part of the first transparent substrate so as not to interfere with the path through which external light flows into the optic nerve, and the light emitting pixel unit. The virtual image created by the light output from the front and the real image seen by the light coming from the front can be seen at the same time.

At this time, the light-emitting pixel unit includes red pixels, green pixels, and blue pixels, and is formed to be equal to or smaller than the diameter in which the blocking pattern is formed, so that it can output light in the direction of the microlens.

The microlens of the augmented reality device using the microlens according to an embodiment of the present invention further includes a prism formed at one end to be able to refract the central angle of the incident light, wherein the prism outputs from the light emitting pixel unit. By changing the refraction angle of the light, the position where the image is formed can be varied.

In addition, the first and second transparent substrates can have outer peripheral surfaces formed with a constant curvature, and when more than one light-emitting pixel unit is provided, they are located on different planes according to the curvature of the first transparent substrate. , When provided with one or more microlenses, they can be positioned on different planes depending on the curvature of the second transparent substrate.

At this time, it further includes a joint portion bonded between the first transparent substrate and the second transparent substrate by injecting a cured resin, wherein the joint portion combines the first transparent substrate and the second transparent substrate into one structure. It can be integrated and made transparent to allow light to pass through.

In addition, it further includes a fine angle adjusting device formed to finely adjust the angle by contracting or expanding depending on whether electricity is applied, wherein the fine angle adjusting device is formed on the first transparent substrate and the second transparent substrate. The central angle of the light output from the emitting pixel unit can be adjusted.

The augmented reality device using a microlens according to an embodiment of the present invention further includes an LCD panel unit capable of blocking external light depending on whether electricity is applied, wherein the LCD panel unit replaces the first transparent substrate. It can be configured to block external light, and can be switched to virtual reality mode by allowing light output from the light-emitting pixel unit to selectively focus on the image.

In addition, it further includes a blocking barrier formed in a vertical direction between the light emitting pixel portion and the microlens, wherein the blocking barrier prevents light passing through the first transparent substrate from the outside from passing through the microlens. You can block it.

In addition, the first transparent substrate is configured by replacing the OLED panel part, and a part or the entire OLED panel part blocks external light, and the OLED panel part outputs light to emit light itself without the light-emitting pixel part. there is.

The augmented reality device using a micro-lens according to an embodiment of the present invention is formed so that the light output from the light-emitting pixel portion finely provided at one end of the transparent substrate passes through the micro-lens and forms an image on the retina of the optic nerve, and is reflected in the external object. It has the advantage of showing the effect of augmented reality by preventing interference with reflected light and causing the image to be output from the light-emitting pixel portion to appear as a virtual image.

In addition, the angle of incidence or transmission of light passing through the microlens can be adjusted by adjusting the angle of the transparent substrate, and it is possible to easily transmit light from various angles by using a prism that refracts the central angle of light.

Figure 1 is an exemplary diagram showing the overall appearance of an augmented reality device using a microlens according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view showing the configuration of the augmented reality device of FIG. 1.
Figure 3 is an example diagram showing light entering the optic nerve so that augmented reality is projected onto an object by the augmented reality device of Figure 2.
Figure 4 is an example diagram showing how the blocking pattern of an augmented reality device using a micro lens according to an embodiment of the present invention is arranged.
Figure 5 is an example diagram showing a prism provided on the second transparent substrate of an augmented reality device.
Figure 6 is an example diagram showing how the first and second transparent substrates of the augmented reality device are provided to have a constant curvature.
Figure 7 is an example diagram showing how the angles of the first and second transparent substrates of the augmented reality device are adjusted.
Figure 8 is an example diagram showing an augmented reality device in which the first transparent substrate is replaced with an LCD panel portion.
Figure 9 is an example diagram showing the LCD panel portion of the augmented reality device of Figure 8 being formed to allow external light to pass through.
Figure 10 is an exemplary diagram showing an augmented reality device using a microlens according to an embodiment of the present invention provided with a blocking partition.

Hereinafter, the description of the present invention with reference to the accompanying drawings is not limited to specific embodiments, and various modifications may be made and various embodiments may be possible. In addition, the content described below should be understood to include all conversions, equivalents, and substitutes included in the spirit and technical scope of the present invention.

In the following description, terms such as first, second, etc. are terms used to describe various components, and their meaning is not limited, and is used only for the purpose of distinguishing one component from other components.

Like reference numerals used throughout this specification refer to like elements.

As used herein, singular expressions include plural expressions, unless the context clearly dictates otherwise. In addition, terms such as “comprise,” “provide,” or “have” used below are intended to designate the presence of features, numbers, steps, operations, components, parts, or a combination thereof described in the specification. It should be construed and understood as not precluding the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts or combinations thereof.

Hereinafter, an augmented reality device using a microlens according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 10.

Figure 1 is an exemplary diagram showing the overall appearance of an augmented reality device using a micro lens according to an embodiment of the present invention, Figure 2 is a cross-sectional view showing the configuration of the augmented reality device of Figure 1, and Figure 3 is an augmented reality device of Figure 1. This is an example showing how light enters the optic nerve so that augmented reality is projected onto an object by a device.

Referring to Figures 1 to 3, the augmented reality device 1 using a micro lens according to an embodiment of the present invention includes a frame 100, a first transparent substrate 200, a second transparent substrate 300, and a blocking pattern. It may include (210), a light emitting pixel unit (220), and a fine lens (310).

First, the augmented reality device 1 may be provided with a frame 100 to provide a configuration for implementing augmented reality, and the frame 100 may be provided in the form of glasses to be convenient for the user to carry and easy to wear. You can.

At this time, the frame 100 may be formed of a metallic material containing gold, titanium, copper alloy, nickel alloy, aluminum, etc., or a plastic material containing celluloid, acetate, optyl, etc., and the augmented reality device 1 The frame 100 is not limited to metallic or plastic materials, and can be made of various materials with flexible characteristics as it is configured to implement augmented reality.

The first transparent substrate 200 and the second transparent substrate 300 are formed on one side of the frame 100 at regular intervals so as to be parallel to each other, and the first transparent substrate 200 is located on the front side of the second transparent substrate. Thus, the light projected from the outside primarily passes through the first transparent substrate 200, and the light projected on the first transparent substrate 200 can be formed to pass through the second transparent substrate 300.

At this time, the first transparent substrate 200 and the second transparent substrate 300 may be formed at the positions where the eyes of the user wearing the augmented reality device 1 are formed, respectively, and the first transparent substrate 200 and the second transparent substrate 300 may be formed respectively. 2The spacing between the transparent substrates 300 can vary depending on the diameter of the microlens 310.

That is, the augmented reality device 1 may be provided in the shape of typical glasses as shown in FIG. 1, and the first transparent substrate 200 and the second transparent substrate 300 overlap at a certain interval to form the lenses of the glasses. Can be provided in each corresponding location.

At this time, the augmented reality device 1 may be provided in the shape of glasses, but is not limited to this, and the configuration of the first transparent substrate 200 and the second transparent substrate 300 is such that the goggles can be fixed to the user's eyes. It can be provided in various shapes such as a mask or a mask.

The first transparent substrate 200 may include a blocking pattern 210 capable of blocking visible light coming from the outside, a light emitting pixel unit 220 capable of outputting light of various wavelengths, and the blocking pattern 210 is formed on the front or back side of the first transparent substrate 200, and the light emitting pixel portion 220 is formed on the back side of the first transparent substrate 200 so that the visible light flowing in from the outside toward the light emitting pixel portion 220 Light rays can be blocked by the blocking pattern 210.

The blocking pattern 210 is formed on the front or back side of the first transparent substrate 200 and is coated with a special paint or attached film that can absorb or reflect light in the visible light region to block light reflected from objects and coming in. It can be formed in the form of

The blocking pattern 210 may be formed to block external light flowing in the direction of the light emitting pixel unit 220, but may be formed on the front or rear surface of the first transparent substrate 200 so as not to interfere with the image forming phenomenon on the user's optic nerve. The size formed can be adjusted.

In other words, the diameter at which the blocking pattern 210 is formed is formed to a diameter that does not block the pupil so as not to block the light that is reflected from the object and flows into the pupil, so that recognition of external objects is not hindered by the blocking pattern 210. can be formed.

The light-emitting pixel unit 220 can be formed to output light in the visible light region on its own so that an image is formed on the user's retina and a virtual image is realized as a virtual image. It may be formed by combining more than one unit pixel 221, and the unit pixel 221 may include a red pixel 221R, a green pixel 221G, and a blue pixel 221B.

The light emitting pixel unit 220 may be composed of one unit pixel 221, and may be formed by combining multiple unit pixels 221.

For example, the light emitting pixel unit 220 formed in a square shape of 2 mm x 2 mm may be formed of a unit pixel 221 of 2 mm x 2 mm, and the unit pixel 221 may be formed of a unit pixel 221 of 0.5 mm x 0.5 mm in size. It can be formed in a 4x4 array, and when combined with a 2 mm x 2 mm light emitting pixel unit 220 and a 0.02 mm x 0.02 mm unit pixel 221, an image can be created with a resolution of 100 x 100. It is possible.

That is, the resolution of the display can be adjusted by adjusting the number of combinations of unit pixels 221 formed in the light-emitting pixel unit 220.

As will be described later, the light emitting pixel unit 220 outputs light in the direction of the microlens 310 formed on the second transparent substrate 300, and the light passing through the microlens 310 is parallel light and is transmitted to the user's pupil. As it is refracted to go straight, an image may be formed on the user's retina.

At this time, the light-emitting pixel unit 220 can be implemented as a display in the form of an OLED (organic light-emitting diode) to receive electrical signals and output light so as to output light capable of implementing an image, and the second It can be formed to have a size equal to or smaller than the diameter of the microlens 310 formed on the transparent substrate 300 to prevent interference with light coming from the outside.

At this time, the light-emitting pixel unit 220 may be provided in the form of a metal electrode, and the substrate forming the light-emitting pixel unit 220 uses an opaque electrode through which light does not pass, thereby playing the role of the blocking pattern 210. It may be provided to do so.

For example, when forming the light emitting pixel portion 220 in the form of an OLED, it is possible to use a metal electrode, so the blocking pattern 210 and the light emitting pixel portion 220 can be formed on the same side of the substrate, and are formed with an opaque electrode. By using the light-emitting pixel unit 220, it is possible to provide only the light-emitting pixel unit 220 without the blocking pattern 210.

The second transparent substrate 300 is formed on the frame 100 of the augmented reality device 1 at a certain distance from the rear end of the first transparent substrate 200, and the microlens 310 formed on one side is a light-emitting pixel portion. The light in the visible light region output from 220 may be refracted so that it can proceed to the user's retina.

At this time, the size of the fine lens 310 can be formed within a range that does not interfere with external light directed to the user's retina, similar to the blocking pattern 210 or the light-emitting pixel unit 220.

Here, the blocking pattern 210, the light-emitting pixel portion 220, and the microlens 310 provided on the first transparent substrate 200 and the second transparent substrate 300 may be located on the same line, and the light-emitting pixel portion may be positioned on the same line. 220 and the microlens 310 may be formed to have a size equal to or smaller than the diameter in which the blocking pattern 210 is formed, but may preferably be formed to have the same diameter as the diameter of the blocking pattern 210 .

At this time, as described above, the blocking pattern 210 may be formed so as not to interfere with light directed to the user's retina, and may be formed to have a diameter equal to or smaller than the diameter of the user's pupil.

The size of a typical person's pupil is known to be 2 mm to 4 mm when the surroundings are bright, and to expand to 4 mm to 8 mm in a dark environment. Therefore, when the pupil becomes small to 2 mm in an environment with bright external light, the user wearing the augmented reality device 1 in which the blocking pattern 210 with a diameter of 2 mm or more is formed is blocked from light coming from the outside. There is interference from the pattern 210, making it impossible to accurately recognize the object.

That is, assuming that the diameter of the user's pupil is at least 2 mm, the blocking pattern 210 formed in the augmented reality device 1 of the present invention can be formed with a diameter of up to 2 mm, and the light-emitting pixel portion The diameter of 220 and the microlens 310 can also be formed within 2 mm.

Therefore, in the present invention, the minimum pupil size of a normal adult is set to 2 mm to determine the diameters of the blocking pattern 210, the light-emitting pixel portion 220, and the microlens 310, but the actual augmented reality device (1) ), the diameter of each configuration can be varied within a range that does not interfere with light coming from the outside.

Referring to Figures 2 and 3, the augmented reality device 1 using a micro lens according to an embodiment of the present invention has a first transparent substrate 200 and a second transparent substrate 300 spaced at a certain distance from the frame 100. ) can be formed.

The gap between the first transparent substrate 200 and the second transparent substrate 300 is to adjust the distance between the light-emitting pixel unit 220 and the microlens 310, and the light output from the light-emitting pixel unit 220 is The spacing may be adjusted in consideration of the focal distance formed when transmitting through the fine lens 310.

At this time, when the distance between the light-emitting pixel unit 220 and the fine lens 310 is formed equal to the focal length of the fine lens 310, the light output from the light-emitting pixel unit 220 passes through the fine lens 310. While doing so, it becomes parallel light and passes through the user's pupil, and the light passing through the pupil can be formed to form an image on the retina.

The focal length of the fine lens 310 can be expressed as the ratio of f (effective aperture diameter, D _EP )/# (effective focal length, EFL) of the lens, where f represents the effective focal length and # represents the diameter of the lens. it means.

Here, the diameter of the fine lens 310 formed on the second transparent substrate 300 is formed to be 2 mm, and when f/# is 1, the focal distance of the fine lens 310 can be formed to be 2 mm, When the gap between the light-emitting pixel unit 220 and the fine lens 310 is formed to 2 mm, the gap between the light-emitting pixel unit 220 and the fine lens 310 is equal to the focal length of the fine lens 310. Thus, the light output from the light emitting pixel unit 220 passes through the microlens 310 and can be formed to be directed to the user's pupil as parallel light.

For example, when the diameter of the blocking pattern 210 formed on the first transparent substrate 200 is formed to be 2 mm, the diameter of the micro lens 310 is adjusted to within 2 mm to separate the first transparent substrate 200 and the second transparent substrate 200. It is possible to form a gap between the transparent substrates 300 of 2 mm or less.

In other words, it is possible to form a lens with a thickness thinner than that of lenses or glasses required to implement augmented reality in a conventional device, thereby improving portability.

At this time, the fine lens 310 has a diameter of 0.001 mm to 2 mm, so that it can be formed to have various focal lengths. Preferably, the diameter of the fine lens 310 is so small that the light emitting pixel portion To prevent image quality from deteriorating due to a decrease in the number of arrays (220), the diameter can be formed in the range of 0.1 mm to 2.0 mm.

Figure 4 is an example diagram showing how the blocking pattern of an augmented reality device using a micro lens according to an embodiment of the present invention is arranged.

Referring to FIG. 4, the augmented reality device 1 using a micro lens according to an embodiment of the present invention can be formed so that the blocking patterns 210 formed on the first transparent substrate 200 are arranged at regular intervals. there is.

At this time, since the blocking pattern 210 reduces the amount of light by blocking light coming from the outside according to the arrangement formed on the first transparent substrate 200, the blocking pattern 210 formed on the first transparent substrate 200 Depending on the ratio, the degree of image implementation of the augmented reality device 1 may vary.

For example, when one blocking pattern 210 is formed in a size of 2 mm x 2 mm, if the gap between each blocking pattern 210 is formed at 2 mm, the same as the size of the blocking pattern 210, As shown in Figure 4, the blocking pattern 210 may be arranged at a ratio of 1/4 of the first transparent substrate 200. At this time, as described above, the amount of light flowing in from the outside is reduced by 3/4 due to the blocking pattern 210, but as shown in FIG. 3, the light reflected by the object passes between the blocking patterns 210. This allows it to reach the user's pupil and recognize objects. Additionally, the blocking pattern 210 formed in a minute size at a close distance from the user's pupil may be formed so as not to be visible to the user's eyes.

At this time, the spacing between the blocking patterns 210 may be the same size as the blocking pattern 210, but may be provided at various intervals to adjust the amount of light coming from the outside.

In other words, due to the formation of the blocking pattern 210, the amount of light that allows the recognition of external objects may be reduced, but it does not prevent the recognition of the object, and the image output from the light-emitting pixel unit 220 is transmitted to the user's retina. If an image is formed, it is possible to recognize an external object and at the same time make the image output from the light-emitting pixel unit 220 appear as a virtual image.

At this time, the plurality of light-emitting pixel units 220 formed on the rear portion of the first transparent substrate 200 can allow each light-emitting pixel unit 220 to output the same image or to output different images.

When outputting the same image from the light-emitting pixel unit 220, the light output from the plurality of light-emitting pixels may be configured to form the same image, and only the light output from one light-emitting pixel unit 220 among the plurality of light-emitting pixels 220 may be used by the user. Even if it passes through the pupil, the same image can be displayed on the retina.

In other words, even if the augmented reality device 1 is not exactly aligned with the user's pupil, if the same image is output from the plurality of light-emitting pixel units 220, it can have the effect of forming an image on the user's retina, and the augmented reality device ( 1) When wearing, the alignment tolerance can be increased. Even if there is slight shaking or alignment is misaligned while wearing, there may be a change in the brightness of the image, but it is possible to ensure that the image is formed continuously. do.

Figure 5 is an example diagram showing a prism being provided on the second transparent substrate of an augmented reality device, and Figure 6 is an example diagram showing the first and second transparent substrates of the augmented reality device being provided to have a certain curvature.

Referring to FIG. 5, the augmented reality device 1 according to an embodiment of the present invention may further include a prism 320.

The prism 320 may be provided at one end of the rear portion of the second transparent substrate 300 and may be formed on the same line as the microlens 310 so that light passing through the microlens 310 is refracted.

The light-emitting pixel unit 220 of the augmented reality device 1 is provided to output light on the same plane and pass through the user's pupil, so that the center of the array of pixels outputting light is the same, and is located at the same point on the user's retina. It can be formed to form an image.

At this time, when the fine lens 310 formed on the second transparent substrate 300 is provided with the prism 320, the light output from the light emitting pixel unit 220 is refracted to a point where the prism 320 is not provided. It becomes not parallel to the light passing through, and the position where the image is formed on the user's retina changes.

In other words, when the prism 320 is provided at a portion of the position where the fine lens 310 is provided, the light output from the light emitting pixel unit 220 exhibits different refraction angles depending on whether the prism 320 is formed, thereby forming the light emitting pixel. It is possible to increase the number of pixel arrays that can implement a virtual image by the unit 220.

For example, if the f/# of the microlens is 4, the numerical aperture is approximately 1/8 and the angle of the light ray coming from the pixel array is ±7.2°. If the deflection angle of the prism is 15° or the array base of each pixel has a 15° inclination, it produces a ray of ±7.2° at 0 degrees and 15 degrees, respectively, resulting in an image with an angle of ±15° or a total viewing angle of 30°. You can make it. If each pixel array had a resolution of 100 One way to increase resolution by using multiple pixel arrays is to change the angle of the central ray by shifting the center of the lens and the pixel array.

Referring to FIG. 6, the first and second transparent substrates 200 and 300 of the microlens according to an embodiment of the present invention can be provided in a shape whose outer peripheral surface has a certain curvature.

One or more light emitting pixel units 220 provided on the first transparent substrate formed to have a curvature of a certain angle can be positioned on different planes so that the central angle of the output light can be formed differently. Additionally, the microlens 310 provided on the second transparent substrate 300 formed to have the same curvature may be formed to be parallel to the corresponding light emitting pixel portion 220.

That is, the first and second transparent substrates 200 and 300, which are formed to have a certain curvature, can form the central angle of the light output from the light emitting pixel unit 220 to be different depending on the curvature formed on the outer peripheral surface, and each The point at which the image appears on the user's retina can be varied by the light-emitting pixel unit 220.

In addition, a curing resin is injected between the first and second transparent substrates 200 and 300 to adhere the first transparent substrate 200 and the second transparent substrate 300, thereby forming the first transparent substrate 200 and the second transparent substrate 300. The transparent substrate 300 may further include a joint (not shown) so that it is formed like a single lens.

At this time, the cured resin injected between the first and second transparent substrates 200 and 300 may be epoxy acrylate, urethane acrylate, unsaturated polyester resin, polyester acrylate, etc., but is not limited thereto. 1, 2 Transparent substrates (200, 300) can be bonded and cured, and it is possible to use a colorless material so as not to interfere with the transmission of light.

That is, the angle between each substrate can be changed by leaving an air gap between the first and second transparent substrates 200 and 300, and the first transparent substrate 200 and the second transparent substrate are formed using a curing resin. It is possible to form a joint (not shown) between the substrates 300 and use it like a single lens.

At this time, when the first transparent substrate 200 and the second transparent substrate 300 are bonded using a curing resin, the microlens 310 formed on the front side of the second transparent substrate 300 is positioned on the rear side. This can prevent interference caused by the cured resin.

Referring to FIG. 7, the first and second transparent substrates 200 and 300 of the micro lens according to an embodiment of the present invention may further include a fine angle adjustment device 400.

The fine angle adjustment device 400 is made of a polymer material that can be contracted or expanded by being activated by electricity or ions, and is provided on the first transparent substrate 200 and the second transparent substrate 300 to control the first and second transparent substrates. The shape in which (200, 300) is formed can be modified.

The first transparent substrate 200 is formed as a single substrate in the shape of a plane, but is formed in a divided form according to the position where the blocking pattern 210 and the light emitting pixel portion 220 are formed, as shown in FIG. 7. Likewise, the second transparent substrate 300 can be formed in the same shape as the first transparent substrate 200 is divided depending on the position where the microlens 310 is formed.

The fine angle adjustment device 400 may be provided between the divided substrates, and when electricity is supplied, it contracts or expands at a certain angle to change the arrangement of the divided first and second transparent substrates 200 and 300. You can do it.

At this time, the material of the fine angle adjustment device 400 may vary depending on the type of activation. Preferably, it is possible to respond quickly even at low voltage, and the Ionic EAP (Ionic EAP) is activated by ions to greatly implement the operation. Electronic active polymer) can be applied.

At this time, depending on the material, Ionic EAP is made of carbon nanotubes (CNT), electroheological fluids (ERP), conducting polymers (CP), ionic polymer gels (IPG), ionic- It can be subdivided into polymer-metal composites (ionic polymer-metal composites, IPMC), etc.

When electricity is not supplied to the fine angle adjusting device 400 and the first and second transparent substrates 200 and 300 are formed as a plane, the light output from the light emitting pixel unit 220 is imaged at the same position. However, if electricity is supplied and the angle of light output from the light emitting pixel unit 220 changes, the point at which the image is focused on the user's retina can be changed.

By differently adjusting the central angle of the light output from each light-emitting pixel unit 220 formed on the first and second transparent substrates 200 and 300 through the fine angle adjustment device 400, the range in which the image is formed on the retina is adjusted. It can be adjusted.

That is, the augmented reality device 1 using a micro lens according to an embodiment of the present invention forms a prism 320 or each light-emitting pixel portion 220 formed on the first and second transparent substrates 200 and 300. ) By adjusting the angle at which the light-emitting pixel unit 220 is formed, the central angle of the light output from the light-emitting pixel unit 220 can be changed to adjust the resolution for implementing a virtual image.

FIG. 8 is an exemplary diagram showing an augmented reality device in which the first transparent substrate is replaced with an LCD panel portion, and FIG. 9 is an exemplary diagram showing the LCD panel portion of the augmented reality device of FIG. 8 being formed to allow external light to pass through.

Referring to FIGS. 8 and 9, the augmented reality device 1 using a microlens according to an embodiment of the present invention has a first transparent substrate 200 formed on the front part of the frame 100 using an LCD (Liquid crystal display). ) It can be provided by replacing it with the panel part 500.

The LCD panel unit 500 may be made of a transparent material to allow external light to pass through, and the color may change when electricity is supplied to the LCD panel unit 500.

At this time, when electricity is supplied to the LCD panel unit 500, the transmittance of the entire area of the LCD panel unit 500 can be changed, and only a portion of it can be changed as shown in FIG. 9. That is, the LCD panel unit 500 can freely adjust the area that changes the transmittance.

When electricity is supplied to the LCD panel unit 500 to change the color of the entire area to black, it can be adjusted to completely block light coming from the outside. At this time, the user's pupil is exposed to the light emitting pixel unit 220. It can be formed so that only the light output from passes through.

That is, when the front of the LCD panel unit 500 is adjusted to black and external light is blocked and the light output from the light-emitting pixel unit 220 passes through the user's pupil, the user's retina is exposed to the light-emitting pixel unit ( 220), only the image output is imaged, so it can be used in virtual reality mode.

In addition, if only the part where the light-emitting pixel unit 220 and the microlens 310 are located is converted to black to allow external light to pass through the transparent part of the LCD panel unit 500, the effect of augmented reality can be displayed. .

In other words, the LCD panel unit 500 can adjust the range of blocking external light depending on whether electricity is supplied, and can selectively adjust the augmented reality mode and virtual reality mode accordingly. Additionally, by adjusting the range that blocks external light, the contrast between the image of a real object and the virtual image can be adjusted in augmented reality.

At this time, the LCD panel unit 500 formed on the first transparent substrate 200 can be replaced with an OLED panel unit (not shown), and the first transparent substrate 200 formed on the OLED panel unit (not shown) can replace the functions provided by the LCD panel unit 500. In addition, when replaced with an OLED panel unit (not shown), it is possible to output light on its own and thus replace the role played by the light emitting pixel unit 220.

In other words, the function of an augmented reality device can be implemented by allowing the OLED panel unit (not shown) to partially block external light to recognize external objects and at the same time make the image output from the light-emitting pixel unit 220 appear as a virtual image. In addition, the OLED panel unit (not shown) can function as a virtual reality device by blocking all external light so that only the image output from the light-emitting pixel unit 220 is visible. Additionally, the metal electrode constituting the OLED panel unit may be configured to serve as a blocking pattern.

Figure 10 is an example diagram showing a blocking partition wall provided in an augmented reality device.

Referring to FIG. 10, the augmented reality device 1 using a fine lens according to an embodiment of the present invention may further include a blocking partition 600, and the blocking partition 600 moves in the direction of the fine lens 310. It can block out external light.

In the augmented reality device (1) of the present invention, light coming from the outside must pass through the first and second transparent substrates (200, 300) directly into the user's pupil, and pass through the microlens (310) into the user's pupil. If it flows into the light, the light may be emitted and the image on the user's retina may become blurred.

The blocking partition 600 is formed between the first transparent substrate 200 and the second transparent substrate 300, is provided in a vertical direction at the upper and lower points of the microlens 310, and is dark to block light. By using a material, the central angle of light coming from the outside is directed toward the microlens 310, so that it can be blocked from passing through the microlens 310.

Additionally, it is possible to prevent light output from the light emitting pixel unit 220 from moving in a direction other than the position where the microlens 310 is formed and directly passing through the user's pupil.

In addition, the augmented reality device 1 using a micro lens according to an embodiment of the present invention has been described by illustrating that the first transparent substrate 200 and the second transparent substrate 300 are formed as a plane, but in reality, in the present invention The technology used is not limited to the outer peripheral surfaces of the first transparent substrate 200 and the second transparent substrate 300, and can be applied to both flat or curved shapes.

As described above, the present invention has been described with reference to the embodiments shown in the drawings, but these are merely illustrative, and those skilled in the art will understand that various modifications and other equivalent embodiments are possible therefrom. will be. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the attached claims.

1: Augmented reality device
100: frame
200: First transparent substrate
210: Blocking pattern
220: Light-emitting pixel unit
221: unit pixel
221R: Red pixel
221G: Green Pixel
221B: Blue Pixel
300: Second transparent substrate
310: Fine lens
320: prism
400: Fine angle adjustment device
500: LCD panel part
600: blocking bulkhead

Claims (10)

A first transparent substrate on which a blocking pattern to block external light is formed on the front or back side, and a light-emitting pixel portion through which light is output is formed on the back side; and
A second transparent substrate is formed with the same diameter as the blocking pattern and is provided with a fine lens formed on the same line as the light emitting pixel portion,
The light output from the light-emitting pixel unit is refracted by the microlens to form an image on the optic nerve, so that a virtual image is generated at a distance of 20 cm or more in front of the microlens,
The blocking pattern is,
It is formed to a size of 2 mm or less so as to be smaller than the diameter of the pupil, and is formed at regular intervals on the front or back side of the first transparent substrate so as not to interfere with the path through which external light enters the optic nerve, and the light emitting pixel portion The virtual image created by the light output from the front and the real image created by the light coming from the front are visible at the same time.
The light emitting pixel unit,
An augmented reality device using a microlens, which includes red pixels, green pixels, and blue pixels, and is formed to be equal to or smaller than the diameter in which the blocking pattern is formed, and outputs light in the direction of the microlens.
delete delete According to paragraph 1,
The fine lens is,
It further includes a prism formed at one end to be able to refract the central angle of the incident light,
The prism is,
An augmented reality device using a microlens, characterized in that the position at which the image is formed is varied by changing the refraction angle of the light output from the light-emitting pixel unit.
According to paragraph 1,
The first and second transparent substrates are,
The outer peripheral surfaces are formed with a certain curvature,
The light emitting pixel unit,
When provided with more than one, they are located on different planes according to the curvature of the first transparent substrate,
The fine lens is,
An augmented reality device using microlenses that, when provided with more than one, can be positioned on different planes depending on the curvature of the second transparent substrate.
According to paragraph 1,
It further includes: a joint bonded between the first transparent substrate and the second transparent substrate by injecting a cured resin,
The joint is,
An augmented reality device using a microlens, characterized in that the first transparent substrate and the second transparent substrate are integrated into one structure and are formed transparently to allow light to pass through.
According to paragraph 1,
It further includes a fine angle adjustment device formed to finely adjust the angle by contracting or expanding depending on whether electricity is applied,
The fine angle adjustment device,
An augmented reality device using a microlens formed on a first transparent substrate and a second transparent substrate and controlling the central angle of light output from the light-emitting pixel portion.
According to paragraph 1,
It further includes an LCD panel unit that can block external light depending on whether electricity is applied,
The LCD panel part,
Augmented reality using a microlens that can be configured by replacing the first transparent substrate, blocks external light, and can be switched to virtual reality mode by selectively focusing the light output from the light-emitting pixel unit on the image. device
According to paragraph 1,
It further includes a blocking partition formed in a vertical direction between the light-emitting pixel portion and the microlens,
The blocking partition is,
An augmented reality device using a microlens, characterized in that it blocks light passing through the first transparent substrate from the outside from passing through the microlens.
According to paragraph 1,
The first transparent substrate is,
It is constructed by replacing the OLED panel part, and part or the entire OLED panel part blocks external light,
An augmented reality device using a microlens, characterized in that it outputs light from the OLED panel unit and emits light on its own without the light-emitting pixel unit.

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