KR20140012396A - Transparent display system for displaying floating image - Google Patents

Transparent display system for displaying floating image Download PDF

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Publication number
KR20140012396A
KR20140012396A KR1020120079151A KR20120079151A KR20140012396A KR 20140012396 A KR20140012396 A KR 20140012396A KR 1020120079151 A KR1020120079151 A KR 1020120079151A KR 20120079151 A KR20120079151 A KR 20120079151A KR 20140012396 A KR20140012396 A KR 20140012396A
Authority
KR
South Korea
Prior art keywords
image
display
transparent
transparent display
unit
Prior art date
Application number
KR1020120079151A
Other languages
Korean (ko)
Inventor
김태섭
김차연
서영규
김윤호
Original Assignee
케이디씨 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 케이디씨 주식회사 filed Critical 케이디씨 주식회사
Priority to KR1020120079151A priority Critical patent/KR20140012396A/en
Publication of KR20140012396A publication Critical patent/KR20140012396A/en

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0016—Grooves, prisms, gratings, scattering particles or rough surfaces
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
    • G02B6/003—Lens or lenticular sheet or layer
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F19/00—Advertising or display means not otherwise provided for
    • G09F19/12—Advertising or display means not otherwise provided for using special optical effects
    • G09F19/18—Advertising or display means not otherwise provided for using special optical effects involving the use of optical projection means, e.g. projection of images on clouds
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/35—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being liquid crystals
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/18—Edge-illuminated signs
    • G09F2013/1886—Special effects
    • G09F2013/189—Three dimensional effects

Abstract

The present invention relates to a composition for realizing the transparent property of a transparent display and the floating property projecting an object into the air without having the object. A transparent display system includes a display part displaying an image, a transparent display part located in front of the display part and displaying information relating to the image of the display part, and a lens part located between the display part and the transparent display part and floating the image of the display part in a space.

Description

Transparent display system capable of displaying floating images {TRANSPARENT DISPLAY SYSTEM FOR DISPLAYING FLOATING IMAGE}

The present invention relates to a transparent display system, and more particularly, an image and a transparent image output from a transparent display by arranging a screen displaying information on a rear surface of the transparent display and floating the image on the screen in a manner of projecting into the air. The present invention relates to a transparent display system for displaying a realistic image by combining a floating image seen through a display.

Started with the development of Liquid Crystal Display (LCD), flat-panel displays have been used for the vast majority of electronic information displays, from small mobile devices to notebooks, monitors, TVs and large displays, thanks to the rapid technological advancements of TFT_LCD and PDP. Occupies.

The major issues in the near future in such flat panel displays are flexible display and transparent display.

The flexible display is based on a flexible plastic substrate, and thus, a flexible display is a thin, compact, and unbreakable display device, which is free from the heavy, hard and fragile display centered on a conventional glass substrate.

The transparent display is a display that shows the background of the screen. In the past, the transparent display is mainly implemented by projecting on a transparent screen. However, the development is now being conducted in order to construct a transparent screen directly, and an active organic light emitting diode showing rapid technological development in recent years. (AMOLED: Active Matrix Organic Light Emitting Diodes).

Such transparent displays are used for advertisements or exhibitions in show windows that effectively express the characteristics and information of products by using the transparent characteristics seen behind the screen to be combined with the background.

1 illustrates an example of displaying a floating image by using a transparent display.

Referring to FIG. 1, the conventional display system 10 is configured to pull-out and place an object 14 to be displayed behind the transparent display 12, and mount the illumination 18 as necessary. In addition, the touch panel 16 may be included in front of the transparent display 12 to facilitate a user input.

The conventional display system 10 configured as described above uses the transparent characteristics of the transparent display 12, while viewing the object 14 behind the screen, information output from the transparent display 12, that is, information or advertisement about the object 14. Provide video for viewing together.

As such, the conventional display system 10 has the advantage of increasing the real three-dimensional and immersive feeling by using the real body 14 itself and changing the real body 14 as necessary.

However, when the object 14 itself is inserted, the volume of the entire display system 10 becomes large, and if the mechanical structure 14a for mounting the object is distorted, the position of the projected image is distorted, thereby causing the effect of floating. The problem of reducing occurs. In addition, in order to adjust the perspective of the real 14, it is necessary to adjust the separation distance between the real 14 and the transparent display 12. In particular, when the distance needs to be maintained, the thickness of the entire display system becomes thick.

The present invention has been made to solve the above problems, and to provide a transparent display system that can implement the floating characteristics and the transparent characteristics of the transparent display in software without projecting the real object in the air.

That is, a screen displaying an image on the back of the transparent display and a lens unit are disposed so that the image of the screen is floated through the lens unit in the space so that the image is output from the transparent display and the floating image shown through the transparent display. The purpose of the present invention is to provide a structure of a transparent display system for displaying a realistic three-dimensional image.

In addition, another object of the present invention is to correct the image distortion caused by the use of the lens unit by distorting and projecting the image projected through the lens in advance in advance.

Transparent display system of the present invention for this purpose, the display unit for displaying an image; A transparent display unit positioned in front of the display unit to display information related to the image; And a lens unit positioned between the display unit and the transparent display unit and projecting an image of the display unit to float in a space.

The apparatus may further include a distance adjusting unit for mechanically adjusting the floating distance with respect to the image projected on the lens unit.

The lens unit may include any one or more than one of a convex lens, a concave lens, and a Fresnel lens.

The display unit may be a poster or printed matter displaying a still image or a flat panel display displaying a still image or a moving image.

The display unit may correct the distortion of the image input to the lens unit and output the distortion to the lens unit.

According to the present invention, by implementing the floating image in software without embedding the real, there is an effect that can reduce the volume and thickness of the entire display system and solve the alignment error according to the mounting position of the real.

In addition, the present invention has the effect of improving the distortion and the viewing angle of the output image by implementing the floating characteristics and the transparent characteristics of the transparent display through the lens unit and also correct the image distortion caused by the use of the lens unit by software.

1 is a diagram schematically illustrating a structure of displaying a floating image by using a transparent display.
2 is a diagram illustrating a structure of a transparent display system according to an exemplary embodiment of the present invention.
3 is a view illustrating various structures of a lens unit according to an exemplary embodiment of the present invention.
4 is a configuration diagram for correcting image distortion due to the use of the lens unit in the system of the present invention.
5 is an example of a screen illustrating a process of correcting image distortion.
6 is a flowchart illustrating a method of displaying a floating image through the transparent display system of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The configuration of the present invention and the operation and effect thereof will be clearly understood through the following detailed description.

Before describing the present invention in detail, the same components are denoted by the same reference symbols as possible even if they are displayed on different drawings. In the case where it is judged that the gist of the present invention may be blurred to a known configuration, do. In addition, when a part includes an element, it does not exclude other elements unless specifically stated otherwise, but may include other elements.

2 is a diagram illustrating a structure of a transparent display system according to an exemplary embodiment of the present invention, and FIG. 3 is a diagram illustrating various structures of a lens unit according to an exemplary embodiment of the present invention.

First, referring to FIG. 2, in the transparent display system 100 according to an exemplary embodiment of the present invention, the display unit 110 is disposed at the far rear, and the lens unit 120 and the transparent display are placed in front of the display unit 110. The part 140 is arrange | positioned on the same straight line and is comprised.

The touch panel 150 may further include a touch panel 150 for performing a user's manipulation in a touch manner in front of the transparent display unit 140, and an illumination 160 for brightening a floating image.

The display 110 is a display device that displays an image. The display unit 110 is a flat panel display including a liquid crystal display (LCD), a plasma display (PDP), an organic light emitting diode display (OLED), a flexible display, a transparent display, a CRT (Cathode Ray Tube), a poster, a printed matter, and the like. It may include. In this case, the poster or printed matter may display a predetermined image, that is, a still image, and the flat panel display and the CRT may display not only the still image but also the moving image.

The display 110 provides a background image or a main image due to the transparency of the transparent display 140. The background image refers to an image that becomes a background with respect to the image output from the transparent display unit 140, and the main image refers to an image that is the core of the image output from the transparent display unit 140.

The transparent display unit 140 is located in front of the display unit 110 and outputs information related to an image displayed on the display unit 110. For example, when the image displayed on the display 110 is a new product sneaker, the transparent display unit 140 may output product information or an advertisement image for the new product sneaker. In this case, the image displayed by the display 110 may be a background of the advertisement image or may serve as a main image.

In particular, the transparent display unit 140 of the present invention has a transparent property of the background visible. The transparent display unit 140 includes a transparent thin film electro-luminescence (TFEL) display, a transparent OLED display, a transparent LCD display, a transparent LED display, an AMOLED display, a transmissive transparent display, and the like. The transparent TFEL display is a display in which electrons pass through the phosphor and excite the phosphor to emit light by using a phosphor having a transparent characteristic. The transparent OLED display displays the transparent organic light emitting layer of the OLED by forming both electrodes transparently and injecting electrons and holes on both sides of the organic light emitting layer to display light. Transparent LCD display, transparent LED display, and AMOLED display are displays that emit light using transparent liquid crystal (LCD), transparent light emitting diodes (LED), and transparent active matrix organic light emitting diodes (AMOLED) with no backlight. The transparent display refers to a display that realizes transparent characteristics by varying the transmittance by changing the liquid crystal and pixels of a general liquid crystal display (LCD).

The lens unit 120 is positioned between the display unit 110 and the transparent display unit 140 to project an image of the display unit 110 to the transparent display unit 140. To float on The lens unit 120 may be configured of any one of a convex lens, a concave lens, and a Fresnel lens, or may include one or more lenses.

FIG. 3A illustrates a structure composed of the convex lens 120a, and part (b) illustrates an example of the structure composed of the concave lens 120b. 3 (c) is a structure in which both sides are arrayed by convex lenses 120c-1 and 120c-2, and (d) is a convex lens 120d-1 and a concave lens 120d-2. Each of the arrayed structures (e) shows the structure of the dual Fresnel lens 120e.

At this time, the thickness of the lens unit 120, the convex shape, the concave shape, the sawtooth shape arranged in each cross section may be set the same or different depending on the focal length, the floating distance, the size of the image to be floated.

The distance adjuster 130 mechanically adjusts the floating distance with respect to the image floated through the lens unit 120. The mechanical adjustment means adjusting the separation distance between the lens unit 120 and the transparent display 140 by changing the position of the lens unit 120 or the transparent display 140. For example, FIG. 2 illustrates an example of a structure in which a focal length between the lens unit 120 and the transparent display unit 140 is adjusted by inserting the lens unit 120 into a groove recessed at a predetermined interval.

The transparent display system of the present invention configured as described above is formed as the image is floated in the air while the image of the display unit 110 passes through the lens unit 120, and the floated image is transmitted through the transparent display 140 to display the transparent display. It is displayed together with the image output from 140. Therefore, the viewer can view the image output from the transparent display unit 140 and the floating image reflected behind the screen of the transparent display unit 140 from the front.

4 is a configuration diagram for correcting image distortion due to the use of the lens unit in the system of the present invention.

In the transparent display system of the present invention, the final output image may be distorted and chromatic aberration may occur due to the use of the lens unit 120.

That is, the image input from the display unit 110 to the lens unit 120 may generate a distorted output image when passing through the lens unit 120 due to the optical characteristics of the lens. Accordingly, the display driver 170 driving and controlling the display 110 outputs the corrected input image to the lens unit 120 through the distortion correction algorithm to finally obtain a normal output image. have.

The correction algorithm reversely corrects the image output from the lens unit 120 according to the distorted shape. That is, the distortion caused by the lens is corrected. For example, when the lens unit 120 is convex, and the image output from the lens unit 120 is convexly distorted beyond the reference value, the lens unit 120 is concave and deformed conversely to the corrected input image of the lens unit 120. Output In addition, when the lens unit 120 is concave, and the image output from the lens unit 120 is concavely distorted to a reference value or less, the image is corrected by bending or convexing the image. Output to 120.

Referring to FIG. 5, when the input image is transmitted through the lens unit 120, the image transmitted through the lens unit 120 is distorted and output in a convex shape, and the display driver 170 corrects the correction image by using a correction algorithm. By inputting (algorithm processing), the output image is output almost similar to the original input image, thereby improving the distortion and the viewing angle of the image.

The display driver 170 for this purpose is defined in advance with respect to the distortion degree according to the shape and shape of the lens unit 120, and the correction algorithm for correcting the same. The display driver 170 may output the corrected image to the display unit 110 of FIG. 2 to be input as the corrected input image of the lens unit 120.

Therefore, the display system according to the present invention can maximize image slimming by implementing image distortion by adding software, and can easily maintain and reduce costs.

6 is a flowchart illustrating a method of displaying a floating image through the transparent display system of the present invention. For reference, it will be described in connection with components of the display system of FIG. 2.

The transparent display system of the present invention projects an image (hereinafter, referred to as a first image) output from the display unit 110 onto the lens unit 120 and plots it on the space (S100).

Thereafter, the transparent display system outputs information (hereinafter, referred to as a second image) related to the first image of the display unit 110 through the transparent display unit 140 and together with the second image of the transparent display unit 140. The first image of the display 110 transmitted through the transparent display unit 140 is overlapped and displayed (S200).

Then, the observer in front of the user sees a realistic image combined with the second image output from the transparent display unit 140 and the first image of the display unit 110 illuminated by the transparency of the transparent display unit 140. It becomes possible.

In this process, in the process of plotting the first image (S100), the process may further include the process of correcting the first image by applying a predefined correction algorithm according to the degree of distortion due to the lens unit 120 (S300). have.

In addition, the method may further include adjusting the floating distance of the first image through the distance adjusting unit 130 in the step S200 of overlapping and displaying the first image and the second image. This process (S400) can also be performed in the process of plotting the first image (S100).

The foregoing description is merely illustrative of the present invention, and various modifications may be made by those skilled in the art without departing from the spirit of the present invention. Accordingly, the embodiments disclosed in the specification of the present invention are not intended to limit the present invention. The scope of the present invention should be construed according to the following claims, and all the techniques within the scope of equivalents should be construed as being included in the scope of the present invention.

100: transparent display system
110:
120: lens unit
130: distance adjustment unit
140: transparent display unit
150: touch panel
160: lighting

Claims (5)

A display unit for displaying an image;
A transparent display unit positioned in front of the display unit to display information related to the image; And
A lens unit positioned between the display unit and the transparent display unit and projecting an image of the display unit to float in a space
Transparent display system comprising a. The method of claim 1,
Distance adjusting unit for mechanically adjusting the floating distance with respect to the image projected on the lens unit
Transparent display system further comprises. The method of claim 1,
The lens unit may include any one or more of a convex lens, a concave lens, and a Fresnel lens. The method of claim 1,
The display unit
A transparent display system, characterized in that a poster or printed matter displaying a still image or a flat panel display displaying a still image or a moving image. The method of claim 1,
The display unit
Transparent display system, characterized in that for correcting the distortion of the image input to the lens unit to output to the lens unit.
KR1020120079151A 2012-07-20 2012-07-20 Transparent display system for displaying floating image KR20140012396A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020120079151A KR20140012396A (en) 2012-07-20 2012-07-20 Transparent display system for displaying floating image

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Application Number Priority Date Filing Date Title
KR1020120079151A KR20140012396A (en) 2012-07-20 2012-07-20 Transparent display system for displaying floating image

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KR20140012396A true KR20140012396A (en) 2014-02-03

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9945988B2 (en) 2016-03-08 2018-04-17 Microsoft Technology Licensing, Llc Array-based camera lens system
US10012834B2 (en) 2016-03-08 2018-07-03 Microsoft Technology Licensing, Llc Exit pupil-forming display with reconvergent sheet
KR20180135649A (en) * 2017-06-13 2018-12-21 광운대학교 산학협력단 System for space touch
US10191188B2 (en) 2016-03-08 2019-01-29 Microsoft Technology Licensing, Llc Array-based imaging relay

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9945988B2 (en) 2016-03-08 2018-04-17 Microsoft Technology Licensing, Llc Array-based camera lens system
US10012834B2 (en) 2016-03-08 2018-07-03 Microsoft Technology Licensing, Llc Exit pupil-forming display with reconvergent sheet
US10191188B2 (en) 2016-03-08 2019-01-29 Microsoft Technology Licensing, Llc Array-based imaging relay
US10684470B2 (en) 2016-03-08 2020-06-16 Microsoft Technology Licensing, Llc Array-based floating display
KR20180135649A (en) * 2017-06-13 2018-12-21 광운대학교 산학협력단 System for space touch

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