KR20160028156A - Image processing system - Google Patents

Abstract

The present invention relates to a projector and a method to process an image in the projector. According to the present invention, an image processing system includes: a projector projecting an image; and a screen outputting the image by including a dotted scattering layer with dots, formed on a transparent film with a certain fill factor, in an area. Therefore, the present invention is capable of outputting an image through the projector anywhere without an extra screen.

Description

[0001] IMAGE PROCESSING SYSTEM [0002]

The present invention relates to an image processing system, and more particularly, to an overlay image output by outputting an image to a screen including a dotted scattering layer in a projector.

In recent years, a large screen, high-definition display device has emerged as one of the important issues. Up to now, such a large-screen display device has been developed and commercialized as a direct-type liquid crystal display, a plasma display, a projection TV and a projector.

A projector is a display device for enlarging an image and enlarging and projecting the image on a screen. Recently, beam projectors have been spreading to replace LCD TVs. In addition, beam projectors are being used for movie screening, digital photo projection, enterprise and educational presentations, video games, and the like. The projector includes a device called an optical engine. In the optical engine, a display device such as a CRT (Cathode Ray Tube), a LCD (Liquid Crystal Display), and a DMD (Digital Micro mirror Device) do.

However, there is a problem that the projector is required to be set to an opaque screen and used only at a designated or fixed place.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to output an image through a projector anywhere, even if a separate screen is not provided.

Another object of the present invention is to provide a dotted scattering layer in an arbitrary size within the screen so that various images can be displayed through a transparent or opaque screen.

It is another object of the present invention to provide an image processing system that provides various services available through a general digital device or a display device, rather than a limited service using a projector.

The technical problem to be solved by the present invention is not limited to the above-described technical problems and other technical problems which are not mentioned can be clearly understood by those skilled in the art from the following description .

In order to accomplish the above object, an image processing system is described herein.

Here, an image processing system according to the present invention includes: a projector for projecting an image; And a dotted scattering layer in which dots are formed on a transparent film with a predetermined fill factor in one region, and the image is output.

The technical solutions obtained by the present invention are not limited to the above-mentioned solutions, and other solutions not mentioned are clearly described to those skilled in the art from the following description. It can be understood.

According to the present invention, there are the following effects.

According to an embodiment of the present invention, there is an effect that an image can be outputted through a projector anywhere, even if a separate screen is not provided.

According to another embodiment of the present invention, there is an effect that a dotted scattering layer is formed in an arbitrary area in an arbitrary size within the screen, and various images can be produced through a transparent or opaque screen.

According to another embodiment of the present invention, an image processing system that provides various services available through a general digital device or a display device, rather than a limited service using a projector, can be provided.

The effects obtained by the present invention are not limited to the above-mentioned effects, and other effects not mentioned can be clearly understood by those skilled in the art from the following description will be.

1 is a block diagram of a projector according to an embodiment of the present invention;
2 is a block diagram of a laser projector having a reflection type polarization conversion unit according to an embodiment of the present invention;
FIG. 3 is a view illustrating an image output on a screen according to an embodiment of the present invention; FIG.
FIG. 4 is a diagram for explaining the configuration of the screen 320 of FIG. 3 in more detail; FIG.
5 to 9 are diagrams for explaining a usage scenario including a dotted scattering layer according to an embodiment of the present invention; And
FIG. 10 is a view for explaining an image processing method according to an embodiment of the present invention.

Hereinafter, various embodiments (s) of an image processing system according to the present invention will be described in detail with reference to the drawings.

Herein, with reference to the accompanying drawings, it is to be noted that, in spite of a predetermined distance between a projector and a screen, an advanced zoom function which is superior to a conventional projector is provided, Thereby providing the advanced zoom function and minimizing degradation such as resolution or sharpness. Further, an advanced zoom function is provided while minimizing the deterioration of the resolution, sharpness, and the like, thereby improving the usability of the user and the product satisfaction with the projector.

The suffix "module "," part ", and the like for components used in the present specification are given only for ease of specification, and both may be used as needed. Also, even when described in ordinal numbers such as " 1st ", "2nd ", and the like, it is not limited to such terms or ordinal numbers.

In addition, although the terms used in the present specification have been selected from the general terms that are widely used in the present invention in consideration of the functions according to the technical idea of the present invention, they are not limited to the intentions or customs of the artisan skilled in the art, It can be different. However, in certain cases, some terms are arbitrarily selected by the applicant, which will be described in the related description section. Accordingly, it should be understood that the term is to be interpreted based not only on its name but on its practical meaning as well as on the contents described throughout this specification.

It is to be noted that the contents of the present specification and / or drawings are not intended to limit the scope of the present invention.

The "projector" described in the present specification is a display device for magnifying and projecting an image on a screen, and can be used as a concept including all digital devices that illustrate a projector but can output an image to the outside.

In addition, the term " image " as used herein may mean only a still image, as well as a moving image.

An image processing system according to an embodiment of the present invention includes a projector for projecting an image and a dotted scattering layer in which dots are formed on a transparent film in a predetermined fill factor in a region, And a screen to be displayed.

Here, the screen may be one side of an object that is not an implementation or digital device in a seesuru display or a head-up display for a vehicle.

In the above, the image projected by the projector can be output only in the in-screen dotted scattering layer region.

In the above, the dots constituting the dotted scattering layer may be formed with a constant interval on the transparent film. The dots constituting the dotted scattering layer may be formed with a fill factor of 50% or less on the transparent film. Alternatively, each dot constituting the dotted scattering layer may have the same or a different size.

On the other hand, each of the dots may have a size of at least 0.1 mm or more.

Each dot constituting the dotted scattering layer may have a circular shape, an elliptical shape or a polygonal shape.

The dots constituting the dotted scattering layer may not be all formed in the same shape.

The projector may output a test image in the screen to determine the area and size of the dotted scattering layer in the screen, and may convert the projection area and size of the image based on the determination result.

If the screen is a cue-through display or a digital device, but not a digital device, the display may be overlaid on an object image located on one side of the display or a transparent object, and the image projected by the projector , An SNS service, a video call, and a text message.

1 is a block diagram of a projector according to an embodiment of the present invention.

1, a projector 100 according to the present invention includes a light source 111 including a light source 111, a first condenser lens 112 and a collimating lens 113, a dichroic mirror 121a, And an illumination optical system 120 including an integrator 124 and an illumination lens 125. The illumination optical system 120 includes a first condensing lens 122a, a second condensing lens 122b, first and second reflecting surfaces 123a and 123b, And a projection optical system 130 including a display element 132 and a projection lens 133. [

Of course, the projector 100 according to the present invention may include components other than the above-described components as needed. However, since components other than the components described above are not directly related to the present invention, A detailed description thereof will be omitted below.

On the other hand, it should be noted that when the components are implemented in a practical application, two or more components may be integrated into one component as needed, or one component may be divided into two or more components.

Here, the projector according to the present invention receives image data from an external device connected via a wired / wireless network.

At this time, the external device can be viewed as a server in view of providing image data to be output to the projector according to the present invention. Such a server can be used, for example, as a concept that includes all digital devices that transmit data, content, services, applications, and the like. Such servers include, for example, a standing device such as a Network TV, a Hybrid Broadcast Broadband TV, a Smart TV, an Internet Protocol TV (IPTV), a Personal Computer , A PDA (Personal Digital Assistant), a smart phone, a tablet PC, a notebook, and the like. The server may be a game device such as a high-definition multimedia interface (HDMI), a playstation or an X-box, a smart phone, a tablet PC, a pocket photo, Such as a printer, a smart TV, a Blu-ray device, and the like.

Meanwhile, a wired / wireless network for connection and data transmission / reception between the projector and the server includes a concept that collectively refers to a communication network supporting various communication standards or protocols for pairing and / or data transmission / reception between the projector and the server to be. Such a wired / wireless network includes all of the communication networks to be supported by the standard now or in the future, and is capable of supporting one or more communication protocols therefor. Such a wired / wireless network includes, for example, a USB (Universal Serial Bus), a Composite Video Banking Sync (CVBS), a Component, an S-Video (Analog), a DVI (Digital Visual Interface) A communication standard or protocol for a wired connection such as an RGB or a D-SUB, a Bluetooth standard, a radio frequency identification (RFID), an infrared data association (IrDA), an ultra wideband (UWB) (ZigBee), DLNA (Digital Living Network Alliance), WLAN (Wi-Fi), Wibro (Wireless broadband), Wimax (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access) A long term evolution (LTE-Advanced), and Wi-Fi direct, and a communication standard or protocol for the network.

Hereinafter, the components of the projector 100 according to the present invention will be described in more detail as follows.

The light source 111 of the light source unit 110 generates and emits red (R), green (G), and blue (B) light as an LED. Of course, the projector 100 according to the present invention may be configured as a light source 111 as well as a lamp or a laser as well as the LED.

The first condenser lens 112 of the light source 110 condenses the light emitted from the light source 111. The condenser lens 112 is made of glass or plastic, and has at least one shape of meniscus spherical, elliptical and aspherical shapes.

The collimating lens 113 of the light source unit 110 converts the light condensed by the first condenser lens 112 into parallel light. 1, the light source 111 is attached to a PCB (Printed Circuit Board) formed on a first surface of a heat sink, and the first condenser lens 112 and the collimating lens (113) are fixed by fixing members coupled to both sides of the first surface of the heat sink.

The structure of the light source unit 110 including the fixing member will be described later in detail.

The dichroic mirrors 121a and 121b of the illumination optical system 120 are mirrors capable of selectively reflecting or transmitting only light having a specific wavelength to obtain light of a desired wavelength band, and usually use interference of light.

The dichroic mirrors 121a and 121b are arranged such that the first dichroic mirror 121a is located at a position where the blue (B) light and the red (R) light intersect, And the second dichroic mirror 121b may be positioned at a position where the red (R) light intersects.

At this time, the first dichroic mirror 121a transmits blue (B) light and reflects green (G) light and red (R) light.

On the other hand, the second dichroic mirror 121b can reflect green (G) light and transmit red (R) light.

As described above, the red (R) light, the green (110b) light, and the blue (110c) light are synthesized by passing through the two dichroic mirrors 121a and 122b and synthesized into light of various colors according to an image to be formed .

The second condenser lens 122 of the illumination optical system 120 condenses again the light synthesized by the two dichroic mirrors 121a and 121b. The second condenser lens 122 may be included in the light source unit 110 according to the structure of the projector 100 according to the present invention.

The integrator 124 of the illumination optical system 120 receives the light passing through the second condenser lens 122 through the first reflection surface 123a and shapes the light into a shape having a uniform luminous intensity.

The integrator 124 may be a light tunnel consisting of rod-shaped rod lenses or box-shaped mirrors, a funnel, a trapezoidal optical funnel, or the like.

According to the structure of the projector 100 according to the present invention, a fly-eye lens may be provided in place of the integrator 124. [ In this case, the second condenser lens 122 is omitted.

The illumination lens 125 of the illumination optical system 120 reflects the light having passed through the integrator 124 to the projection optical system 130 through the second reflection surface 123b.

The display device 132 of the projection optical system 130 outputs image information to be projected by appropriate switching or reflection processes when the light emitted from the illumination optical system 120 arrives, Information is projected on the screen 140 by the projection lens 133.

The display device 132 may be a DMD (digital micromirror device), a liquid crystal on silicon (LCoS), or a liquid crystal device (LCD). In addition, the projector 100 according to the present invention may use a scanner in place of the prism 131 and the display device 132.

2 is a block diagram of a laser projector having a reflection type polarization conversion unit according to an embodiment of the present invention.

2, the laser projector according to the present invention includes light sources 212, 214 and 216, dichroic mirrors 222, 224 and 226 as an image projecting part, and a scanner 230, A polarized light conversion unit 240, a power supply unit 260, and a control unit 270.

Of course, the laser projector according to the present invention may be configured to include elements other than the above-described components (for example, a reflection surface, a prism, and the like) as needed, but other than the above- Since there is no direct connection, a detailed explanation thereof will be omitted below for simplicity of explanation.

On the other hand, it should be noted that when the components are implemented in practical applications, two or more components may be combined into one component as necessary, or one component may be divided into two or more components .

Hereinafter, the components of the laser projector 300 according to the present invention will be described in order.

The light sources 212, 214 and 216 are composed of laser diodes of red (R), green (G) and blue (B), and emit laser light generated from the laser diodes.

The dichroic mirrors 222, 224, and 226 separate laser light emitted from the light sources 212, 214, and 216.

The scanner 230 scans the laser light emitted from the light sources 212, 214 and 216 and reflects the image on the screen 250 by reflecting the light on the x axis (horizontal) or the y axis (vertical).

A panel such as a digital micromirror device (DMD), a liquid crystal on silicon (LCoS), and a liquid crystal device (LCD) may be used instead of the scanner 230.

The polarization conversion unit 240 changes the polarization direction of laser light emitted from the dichroic mirrors 222, 224, and 226 or the scanner 230 to remove the coherency of the laser light. The polarization conversion unit 240 may be positioned between the scanner 240 and the screen 250 as shown in FIG. 2 and may be positioned between the dichroic mirrors 222, 224, and 226 and the scanner 240 Lt; / RTI > The details of the operation of the polarization converter 240 will be described later in detail.

The power supply unit 260 supplies power to the respective components of the laser projector, and the control unit 270 controls the overall operation of the respective components of the laser projector.

Hereinafter, the configuration of the reflection type or transmission type polarization conversion unit 240 will be described.

The reflection type polarization conversion unit 240 includes a polarization rotation plate, a motor, and a reflection plate. That is, the polarization rotation plate rotates the polarization of laser light by a predetermined angle. The polarizing rotary plate may be a lambda / 4 rotary plate that rotates the polarized light from 0 DEG to 45 DEG in a stationary state.

Under the control of the control unit 270, the motor receives power from the power supply unit 260 and rotates the polarization rotation plate.

A reflection plate is formed between the polarization rotation plate and the motor. When the polarization conversion unit 240 is positioned between the scanner 240 and the screen 250 as shown in FIG. 3, When the polarized light is reflected by the screen 250 and the polarized light conversion unit 240 is located between the dichroic mirror 220 and the scanner 230, the polarized light is reflected by the scanner 230 .

The transmission type polarization conversion unit 240 includes a polarization rotation plate and a motor. That is, the polarization rotation plate rotates the polarization of laser light by a predetermined angle. The polarizing rotary plate may be a lambda / 2 rotary plate which rotates the polarized light from 0 DEG to 90 DEG mainly in a stationary state.

Under the control of the control unit 270, the motor receives power from the power supply unit 260 and rotates the polarization rotation plate.

Generally, a laser is emitted with the direction of a particular polarization when the beam is emitted. The beam having such a specific polarization direction passes through the polarization conversion section 240 including the polarization rotation plate according to the present invention, so that the beam having polarization in different directions progresses at the same time continuously as the time changes.

Through this process, beams having different polarizations continuously change temporally and spatially to produce different interference fringes, and the laser spot patterns generated by temporally and spatially continuous interference fringe patterns are formed on the screen 250 When it is seen, it appears as an average of the laser spot patterns, so that the glitter phenomenon appears to disappear and the laser spot is removed.

That is, the polarization direction of the beam emitted from the laser beam is continuously changed by the polarization converter 240 according to the present invention, so that the coherence inherent to the laser beam is reduced, and as the coherence is reduced, Is removed.

FIG. 3 is a view for explaining an image output on a screen according to an embodiment of the present invention, and FIG. 4 is a diagram for explaining the configuration of the screen 320 of FIG. 3 in more detail.

3, the left side of the screen 320 shows the objects 310 that can be seen through the screen, the right side shows a projector 330 that outputs an image to the screen, a user looking at the screen (Eye) 340 are shown.

Here, the screen 320 is a transparent screen or a see-through display, and objects behind the screen can be seen as they are. In other words, it is the same principle that the screen 320 can be seen as a transparent glass window and an object over a window can be seen through a window. The screen is attached with a transparent film to which the dots 410 of FIG. 4 are attached. Accordingly, the screen 320 may be a screen generally associated with a projector, and may be any screen having the transparent film and the dots 410 on the transparent film.

Therefore, if the user 340 is not outputting any image on the screen 320 at the projector 340, it is the same as viewing an object through a glass window. Unlike the case where the projector 340 outputs an image on the screen 320 and the image is output to the screen from the conventional projector, the user 340 can simultaneously view the objects 310 and the output image .

This is accomplished by attaching dots 410 on the screen or by attaching only the dots 410 onto the screen, using sandblasting technology or / and printing technology .

On the other hand, the quality of the image output on the screen, that is, the images overlaid on the user's eyes together with the objects positioned at the rear of the screen, and the transparency of the images, ). In other words, the higher the fill factor of the dots on the screen, the higher the quality and brightness of the output image. In this case, however, the higher the fill factor of the dots 410 on the screen, the lower the transparency of the screen. This can be solved to some extent, for example, by embodying the dots in a transparent material, but there is still a loss of transparency compared to the case without dots.

Accordingly, the pitch factor of the dots 410 on the screen may be 1 to 50%, so that the quality, transparency, and brightness of the output image can be appropriately adjusted. Meanwhile, the distance between the dots 410 may be set arbitrarily, but it is preferable that the interval is within 0 to 5 cm. It is preferable that the size of each dot is within 1 cm, preferably at least 0.1 mm or more. However, the present invention is not limited to the above-described numerical values, and the user can design variously according to the purpose of use of the screen.

Each dot constituting the dotted scattering layer may have the same or a different size. Each dot constituting the dotted scattering layer may have a circular shape, an elliptical shape or a polygonal shape. The dots constituting the dotted scattering layer may not be all formed in the same shape.

In FIG. 3, a transparent screen such as a glass window is illustrated and described, but the present invention is not limited thereto. For example, the screen may be anything capable of attaching the dots 410 or the transparent film with the dots 410 to a desired size. That is, when a display device is installed in a department store, a mart, an airport, a home or the like, but the space is narrow or the space becomes a problem, the dot 410 or the transparent film It can be attached / detached in a desired size to the position.

Although not shown in the present specification, the dotted scattering layer may be attached to the output portion of the projector, that is, the lens, for example, instead of the screen, so that the same or similar effect as described later with reference to FIGS. However, in this case, the size of each dot constituting the dotted scattering layer may be much smaller than the size described above, and the dot-to-dot spacing may be smaller than the interval described above. Alternatively, only the lens having the dotted scattering layer as described above may be combined with the output portion of the projector or positioned at the front portion thereof, thereby achieving the same effect without adhering to the screen.

5 to 9 are views illustrating examples of projecting an image on a screen including a dotted scattering layer according to an embodiment of the present invention.

FIG. 5 is an example in which an SNS (Social Network Service) is output on a dotted scattering layer in a screen, for example.

5A shows a case where the projector does not output any image on the screen including the dotted scattering layer, for example. In this case, as described above, when the screen including the dotted scattering layer is one side of a transparent object, not a cue-through display or a digital device, objects located on the rear side are exposed through the screen. Therefore, in this case, the user hardly recognizes whether there is a dotted scattering layer in the screen or an area in the screen where the dotted scattering layer is formed, unless an image is projected onto the screen by the projector it's difficult.

However, as shown in FIG. 5B, if an image is projected from the projector to the screen, an image is output to the dotted scattering layer area. At this time, the projector may output a test image in advance before the image projection to determine whether a dotted scattering layer is formed in the screen. If the projector determines that a dotted scattering layer is formed in the screen, the projector determines the size of the formed scattered layer and the position or area within the screen. This is because, in general, when one side of a cue-through display or a transparent object is used as a screen, it is difficult to intuitively recognize an image projected on the screen due to objects on the rear side of the screen. However, in the dotted scattering layer region according to the present invention, since the image to be projected is output to the extent that the user can recognize the image regardless of such conditions, the position, area and size of the dotted scattering layer formed in the screen desirable. The projector converts or adjusts the output area, size, etc. of the image to be projected in comparison with the output area, the size, and the like of the projected test image and the dotted scattering layer thus determined. Accordingly, an image is output to the in-screen dotted scattering layer area 520 as shown in FIG. 5B. In FIG. 5B, the SNS service is output in the dotted scattering layer region 520. The output SNS service is generally the same as the configuration of the SNS service used on the display device, and the screen is different so that the object located on the rear side of the screen acts as a background screen, and the user uses the SNS service I feel like.

As shown in FIG. 5B, the screen for service must be implemented with at least one of FIGS. 6A to 6B. In FIG. 6A, a dotted scattering layer is formed in the entire screen region, and in FIG. 6B, a dotted scattering layer is formed in only a part of the screen. In the latter case, as described above, it is necessary to use a test image in the projector.

Referring to FIG. 7, if the above-described FIG. 5 uses the SNS service, FIG. 7 can be viewed as a broadcast program, in particular, a data broadcast such as news or a web browser. That is, a moving image may be output in the first dotted scattering region 710 in the screen, and text data such as an article may be output in the second dotted scattering region 720.

FIG. 8 is a view similar to FIG. 6, and is an example of forming a dotted scattering layer in a screen for providing a broadcast service or a web service as shown in FIG.

FIG. 9 illustrates a video call service such as face time, for example. In the first dotted scattering layer in the screen, the moving image of the user 1 (the caller) 910 is outputted, while in the second dotted scattering layer, the moving image of the user 2 The image is output.

In addition, although not shown or described in this specification, all services generally available in a digital device or a display device are available at any time without restriction of space or space. That is, in general, if an image is to be outputted or serviced in a place where a display is not provided in advance, a lot of electricity or electronic equipment is required and it is complicated to implement it from the outside, but according to the present invention, It is possible to easily output an image (service) and provide it to users regardless of opacity.

FIG. 10 is a view for explaining an image processing method according to an embodiment of the present invention.

Upon receiving the content including the image in the projector (S1002), the display area for outputting the content is determined (S1004). Then, the content is processed for outputting and outputted on the screen (S1006 / S1008). At this time, the content output in step S1008 may be a test image.

The projector compares the output area and size of the content output on the screen with the area and size of the dotted scattering layer in the screen (S1010).

If the result of the comparison is YES, the data is output as it is. Otherwise, the region and size of the dotted scattering layer in the screen are recognized and data is obtained (S1012).

Based on the acquired area and size of the in-screen dotted scattering layer, the output position and size of the content to be output are converted, and the converted content is outputted on the screen (S1014).

According to the present invention, it is possible to output an image through a projector anywhere, even if a separate screen is not provided, and to form a dotted scattering layer in an arbitrary area within the screen in an arbitrary size, And can provide a variety of services available through a general digital device or a display device, rather than a limited service using a projector.

Although the present invention has been described in the context of a projector for understanding the present invention and for convenience of explanation, the scope of the present invention is not limited thereto. In other words, the image processing method of the present invention can be applied in the same or similar manner to various digital devices capable of outputting images to the outside.

The projector and the image processing method in the projector described in this specification can be applied to a configuration and a method of the embodiments described above in a limited manner, May be selectively combined.

Meanwhile, the operation method of the projector disclosed in this specification can be implemented as a code that can be read by a processor on a recording medium readable by the processor included in the projector. The processor-readable recording medium includes all kinds of recording devices in which data that can be read by the processor is stored. Examples of the recording medium readable by the processor include ROM (Read Only Memory), RAM (Random Access Memory), CD-ROM, magnetic tape, floppy disk, optical data storage device, And may be implemented in the form of a carrier-wave. In addition, the processor-readable recording medium may be distributed over network-connected computer systems so that code readable by the processor in a distributed fashion can be stored and executed.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Of the right. Further, such modified embodiments should not be understood individually from the technical idea of the present invention.

100: projector 110: light source
111: light source 112: first condensing lens
113: Collimating lens
120: illumination optical system 121a, 121b: dichroic mirror
122: second condensing lens 123a, 123b: first and second reflecting surfaces
124: integrator 125: illumination lens
130: projection optical system 131: prism
132: display element 133: lens

Claims (14)

An image processing system comprising:
A projector for projecting an image; And
And a dotted scattering layer in which dots are formed on a transparent film with a predetermined fill factor in one region, wherein the image is output. The method according to claim 1,
The screen,
Is implemented in a seesaw display or a head-up display for a vehicle. The method according to claim 1,
The screen,
Characterized in that it is an aspect of an object other than a digital device. The method according to claim 1,
Wherein the image projected by the projector is an image projected by the projector,
And only in the intra-screen scattering layer region in the screen. The method according to claim 1,
The dots constituting the dotted scattering layer are,
Wherein the transparent film is formed with a predetermined gap therebetween. The method according to claim 1,
The dots constituting the dotted scattering layer are,
Is formed with a fill factor of 50% or less on the transparent film. The method according to claim 1,
Each of the dots constituting the dotted scattering layer may include,
And may have the same or an unequal size. 8. The method of claim 1 or 7,
Each of the dots includes:
Wherein the image processing system has a size of at least 0.1 mm or more. The method according to claim 1,
Each of the dots constituting the dotted scattering layer may include,
Circular, elliptical, or polygonal shape. The method according to claim 1,
Each of the dots constituting the dotted scattering layer may include,
Are not all configured in the same form. The method according to claim 1,
The projector includes:
And outputs a test image in the screen to determine the area and size of the dotted scattering layer in the screen. 12. The method of claim 11,
The projector includes:
And converts the projection area and the size of the image based on the determination result. The method according to claim 1,
Wherein the screen is overlaid with an object image located on one side of the display or a transparent object when the screen is a face-to-face display or a transparent object, not a digital device. The method according to claim 1,
Wherein the image projected by the projector is an image projected by the projector,
A broadcast program, an SNS service, a video call, and a text message.

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