KR102040163B1 - Transparent display device - Google Patents

Transparent display device Download PDF

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Publication number
KR102040163B1
KR102040163B1 KR1020130126948A KR20130126948A KR102040163B1 KR 102040163 B1 KR102040163 B1 KR 102040163B1 KR 1020130126948 A KR1020130126948 A KR 1020130126948A KR 20130126948 A KR20130126948 A KR 20130126948A KR 102040163 B1 KR102040163 B1 KR 102040163B1
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KR
South Korea
Prior art keywords
light
panel
light source
set cover
frame
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KR1020130126948A
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Korean (ko)
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KR20150047191A (en
Inventor
박기덕
Original Assignee
엘지디스플레이 주식회사
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Priority to KR1020130126948A priority Critical patent/KR102040163B1/en
Publication of KR20150047191A publication Critical patent/KR20150047191A/en
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Publication of KR102040163B1 publication Critical patent/KR102040163B1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/64—Constructional details of receivers, e.g. cabinets or dust covers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • F21V33/0004—Personal or domestic articles
    • F21V33/0052—Audio or video equipment, e.g. televisions, telephones, cameras or computers; Remote control devices therefor
    • 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
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0086—Positioning aspects
    • G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1601—Constructional details related to the housing of computer displays, e.g. of CRT monitors, of flat displays

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Nonlinear Science (AREA)
  • Optics & Photonics (AREA)
  • Theoretical Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Computer Hardware Design (AREA)
  • Chemical & Material Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Mathematical Physics (AREA)
  • Signal Processing (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)

Abstract

The present invention relates to a transparent display device, and more particularly, to provide a transparent display device equipped with an auxiliary light source unit capable of illuminating a subject disposed on a rear surface thereof. To this end, the transparent display device according to the present invention comprises a module including a panel for outputting an image, and a light shielding panel disposed on a rear surface of the panel to transmit or block light; A set cover for supporting the module; A support for supporting the set cover; And an auxiliary light source unit mounted to the set cover or the support part to illuminate a subject disposed in the back direction of the module, wherein the support part extends from the side surface of the set cover in the back direction. ; And a second frame extending perpendicularly to the first frame from an end of the first frame and extending to be disposed in a rear direction of the set cover, wherein the auxiliary light source unit includes the first frame and the second frame. It is mounted on at least one of the frames.

Description

Transparent display device {TRANSPARENT DISPLAY DEVICE}

The present invention relates to a light blocking panel which blocks light transmission and a transparent display device using the same.

Flat panel displays (FPDs) are used in various types of electronic products, including mobile phones, tablet PCs, notebook computers, and monitors. The flat panel display includes a liquid crystal display (LCD), a plasma display panel (PDP), an organic light emitting display (OLED), and more recently, an electrophoretic display. (EPD: ELECTROPHORETIC DISPLAY) is also widely used.

Among flat panel display devices (hereinafter, simply referred to as 'display devices'), liquid crystal display devices are most widely commercialized due to the advantages of mass production technology, ease of driving means, and high quality. Among the display devices, organic light emitting display devices have attracted attention as next generation display devices because they have a high response speed of 1 ms or less and low power consumption.

Recently, in order to satisfy users' desire for various functions and various designs, a transparent display device capable of transmitting light has been developed.

When a user views an image through the transparent display device, a rear surface of the transparent display device may be viewed through the transparent display device.

FIG. 1 is an exploded perspective view of an embodiment of a module applied to a conventional transparent display device, and FIG. 2 is an exemplary view for explaining a function of a conventional transparent display device.

The transparent display device includes a module for outputting an image, a set cover covering the module, and a support unit for supporting the set cover.

1 and 2, the module is disposed on the panel 13 for displaying an image, the cover bottom 15, the rear frame 17, the rear surface of the panel to transmit light or A light blocking panel 10, a light guide plate 11, a light source unit 16, an optical unit 18, a guide panel 12, and a top case 14 to shield light are included. In the following description, the back of the transparent display device refers to the back surface of the cover bottom 15 in FIG. 1, and the front of the transparent display device refers to the front surface of the top case 14 in FIG. 1. it means.

Various types of subjects 20 may be provided on the back of the transparent display device, and apples are illustrated as examples of the subjects 20 in FIGS. 1 and 2. The user 30 may see the object 20 through the module in front of the transparent display device including the module.

The panel 13 may be a panel applied to a display device which is generally used. For example, the panel 13 may be a liquid crystal panel, an organic light emitting panel, a plasma display panel, or an electrophoretic panel. That is, the panel 13 may display an image by using various methods.

The light blocking panel 10 performs a function of transmitting light or blocking light according to a user's selection.

For example, the user 30 who wants to see the object 20 disposed on the rear surface of the transparent display device may cause the light blocking panel 10 to transmit light. The user 30 who does not want to see the object 20 arranged on the rear surface may cause the light shielding panel 10 to block light.

The configuration and function of the light blocking panel 10 will be briefly described as follows.

The light blocking panel 10 may include a lower base substrate, electrodes formed on the lower base substrate, a partition wall formed between the electrodes to define a pixel, a dispersion liquid embedded in each of the pixels defined by the partition wall, And a common electrode formed on the charged particles, the upper base substrate, and the upper base substrate filled in the dispersion. The charged particles may be charged with a negative charge or a positive charge. Hereinafter, the light blocking panel will be described with an example in which the charged particles are charged with negative (−) charge.

First, when a negative charge is supplied to the electrode formed in the pixel surrounded by the partition wall, repulsive force is applied between the charged particles and the electrode.

In this case, the charged particles diffuse in a direction far from the electrode and are distributed on the upper surface of the pixel. Therefore, light transmitted from the lower end of the lower base substrate and introduced into the pixel is blocked by the charged particles. Since the light introduced into the pixel is blocked by the charged particles, light does not pass through the pixel. Therefore, the user cannot see the back of the transparent display device through the transparent display device. In this case, the light blocking panel 10 may function as a reflecting plate reflecting light transmitted from the light guide plate 11 toward the light blocking panel 10 toward the panel 13.

Second, when positive charge is supplied to the electrode formed in the pixel surrounded by the partition wall, an attractive force is applied between the charged particles and the electrode.

In this case, the charged particles are collected around the electrode. Thus, only a portion of the light transmitted from the lower end of the lower base substrate and introduced into the pixel is blocked by the charged particles gathered around the electrode, and most of the remaining light passes through the pixel. Accordingly, the user can see the rear surface of the transparent display device through the transparent display device.

That is, when the negative charge is supplied to the electrodes, the light shielding panel 10 blocks the light, so that the user can use the transparent display device on the back surface of the transparent display device. 20) can not see.

However, since the light blocking panel 10 transmits light when the positive charge is supplied to the electrodes, the user 30 uses the transparent display device as shown in FIGS. 1 and 2. Through this, the object 20 disposed on the rear surface of the transparent display device can be seen.

Except for the function of the light blocking panel 10, the transparent display device including the module may perform the same function as a general display device.

For example, when the light blocking panel 10 does not transmit light and performs a function of the reflecting plate, the transparent display device may output an image in the same manner as a conventional display device.

When the light blocking panel 10 transmits light, while the image is output through the panel 13, the user displays the object 20 disposed on the rear surface of the panel 13 together with the image. can see.

In the conventional transparent display device as described above, the transparency of the object is determined according to the transmittance of each of the components constituting the transparent display device.

For example, the transmittance of the panel 13 is 0.175%, the transmittance of the optical part 18 is 0.85%, the transmittance of the light guide plate 11 is 0.93%, and the transmittance of the light blocking panel 10 is At 0.85% and the transmittance of the rear frame 17 is 0.93%, the transmittance of the entire transparent display device is 0.11% (= 0.175 x 0.85 x 0.93 x 0.85 x 0.93).

That is, in the conventional transparent display device, since the transmittance of the transparent display device is determined only by the transmittance of each of the components, the transmittance of the transparent display device is substantially only 0.11%.

Therefore, the user cannot clearly see the object 20 through the transparent display device.

SUMMARY OF THE INVENTION The present invention has been proposed to solve the above-described problem, and it is a technical object of the present invention to provide a transparent display device equipped with an auxiliary light source unit capable of illuminating a subject disposed on a rear surface thereof.

According to an aspect of the present invention, there is provided a transparent display device comprising: a module including a panel for outputting an image and a light blocking panel disposed on a rear surface of the panel to transmit or block light; A set cover for supporting the module; A support for supporting the set cover; And an auxiliary light source unit mounted to the set cover or the support part to illuminate a subject disposed in the back direction of the module, wherein the support part extends from the side surface of the set cover in the back direction. ; And a second frame extending perpendicularly to the first frame from an end of the first frame and extending to be disposed in a rear direction of the set cover, wherein the auxiliary light source unit includes the first frame and the second frame. It is mounted on at least one of the frames.
According to an aspect of the present invention, there is provided a transparent display device comprising: a module including a panel configured to output an image, and a light blocking panel disposed on a rear surface of the panel to transmit or block light; A set cover for supporting the module; A support for supporting the set cover; A light source unit supplying light to the light guide plate from a side of the light guide plate mounted to the module; And an auxiliary light source unit mounted on the set cover or the support unit to illuminate a subject disposed in a rear direction of the module, wherein the auxiliary light source unit is connected to the light source unit and mounted inside the set cover.

According to the present invention, by brightly illuminating the subject disposed on the back of the transparent display device, the user can more clearly see the subject through the transparent display device.

In addition, the present invention, by using a high color organic light emitting diode (OLED) as an auxiliary light source for illuminating the subject, the user can see the intrinsic color of the subject more clearly.

1 is an exploded perspective view illustrating a configuration of a module applied to a conventional transparent display device.
2 is an exemplary diagram for describing a function of a conventional transparent display device.
Figure 3 is an exploded perspective view showing an embodiment of a module applied to the transparent display device according to the present invention.
4 is a perspective view of an embodiment of a transparent display device according to a first embodiment of the present invention.
5 is a side view of an embodiment of a transparent display device according to a first embodiment of the present invention;
FIG. 6 is an exploded perspective view illustrating a configuration of a module applied to the transparent display device according to the second embodiment of the present invention. FIG.
7 is a side view of an embodiment of a transparent display device according to a second embodiment of the present invention.
8 is an exemplary view schematically illustrating a method of viewing a subject disposed on a rear surface of a transparent display device using the transparent display device according to the second embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail an embodiment of the present invention.

3 is an exploded perspective view of an embodiment of a module applied to the transparent display device according to the present invention. The transparent display device according to the present invention may be an organic light emitting display device consisting of an organic light emitting panel in which an organic light emitting diode (OLED) is formed, or a liquid crystal display device consisting of a liquid crystal panel in which a liquid crystal is filled. For convenience of explanation, a transparent display device according to the present invention will be described with an example of a liquid crystal display device.

The transparent display device according to the present invention includes a module 100 including a panel 130 for outputting an image, and a light blocking panel 151 disposed on a rear surface of the panel 130 to transmit or block light, A set cover for supporting the module 100, a support for supporting the set cover, and an auxiliary light source unit mounted on the set cover or the support and illuminating a subject disposed in the back direction of the module 100. Include.

First, as shown in FIG. 3, the module 100 includes a cover bottom 150, a rear frame 170 disposed on the cover bottom 150, and a front surface of the rear frame 170. The light blocking panel 151 disposed, the light guide plate 110 disposed on the front surface of the light blocking panel 151, the light source unit 160 disposed on the side surface of the light guide plate 110, and disposed on the front surface of the light guide plate 110. An optical unit 152 for converting the light output from the light source unit 160 through the light guide plate 110 perpendicular to the plane of the light guide plate 110, and disposed in front of the optical unit 152 to use the light; Mounted to the panel 130 for outputting an image, the cover bottom 150, and coupled to the cover bottom 150 in a front direction of the guide panel 120 and the panel 130 to guide the components. The top case 140 is included. In the following description, the back surface of the transparent display device or the module 100 means the back surface of the cover bottom 150 in FIG. 3, and the front surface of the transparent display device or the module 100 is illustrated in FIG. 3. In 3, it means the front of the top case 140.

First, the cover bottom 150 is fastened to the top case 140 disposed on the front surface of the panel 130 to perform a function of embedding the components.

Therefore, between the cover bottom 150 and the top case 140, the rear frame 170, the light blocking panel 151, the light guide plate 110, the light source unit 160, and the optical unit 152. The guide panel 120 and the panel 130 are disposed.

Second, the rear frame 170 is mounted on the cover bottom 150 and supports the light blocking panel 151.

When the light blocking panel 151 is formed to transmit light, light output from the rear surface of the transparent display device, that is, from the rear surface of the rear frame 170 passes through the rear frame 170 and the light shielding. Since the panel 151 must pass through, the rear frame 170 must be formed of a transparent material.

Therefore, the rear frame 170 may be formed of a transparent glass substrate or a transparent synthetic resin substrate.

Third, the light guide panel 110 scatters and reflects the light output from the light source unit 160 and transmits the light to the panel 110 disposed above the LGP 110. Do this.

The light guide plate 110 may be formed of a material such as plastic or resin, such as polymethylmethacrylate (PMMA).

The light guide plate 110 is guided by the guide panel 120 and is mounted to the cover bottom 150.

Fourth, the light source unit 160, for injecting light into the panel 130 through the light guide plate 110, may be composed of a light source for outputting light and a printed circuit board for supporting the light source. have. As the light source, a light emitting diode package may be applied.

The light emitting diode package may include a light emitting diode (LED) and a mold supporting the light emitting diode.

As illustrated in FIG. 3, the light source unit 160 is disposed on the side surface of the light guide plate 110.

Fifth, the guide panel 120 guides the rear frame 170, the light blocking panel 151, the light guide plate 110, the light source unit 160, and the optical unit 152, and the panel 130. ) To support this function.

That is, the guide panel 120 is formed in a rectangular frame and is disposed in the cover bottom 150 as shown in FIG. 3, wherein the rear frame 170 is disposed in the guide panel 120. The light blocking panel 151, the light guide plate 110, the light source unit 160, and the optical unit 152 may be guided by side surfaces of the guide panel 120, and may be fixed at a predetermined position.

Grooves for fixing the rear frame 170, the light blocking panel 151, the light guide plate 110, the light source unit 160, the optical unit 152, and the like, on side surfaces of the guide panel 120. Or projections may be formed.

Sixth, the panel 130 includes pixels formed in regions defined by intersections of gate lines and data lines formed in the display area, and a thin film transistor TFT is formed in each of the pixels.

The thin film transistor TFT supplies a data voltage supplied from the data line to the pixel electrode in response to a scan signal supplied from the gate line. The transmittance of light is controlled by driving the liquid crystal positioned between the pixel electrode and the common electrode in response to the data voltage.

The panel 130 may be driven in an IPS mode or a TN mode.

In the panel 130 driven in the IPS mode, a pixel electrode and a common electrode are disposed on a lower substrate constituting the panel 130, and the liquid crystal is arranged by a transverse electric field between the pixel electrode and the common electrode. This is regulated.

In the panel 130 driven in the TN mode, a pixel electrode is formed on a lower substrate constituting the panel 130, and a common electrode is formed on an upper substrate constituting the panel 130. The arrangement of the liquid crystals is controlled by the electric field between the pixel electrode and the common electrode.

In the transparent display device in which the panel 130 is configured in the TN mode, when the image is not output to the panel 130, that is, even when the transparent display device according to the present invention is turned off, the transparent display device is displayed. Light reflected from a subject disposed on the rear surface of the device is passed through the rear frame 170, the light shielding plate 100, the light guide plate 110, the optical unit 152, and the panel 130. It may be input to the eyes of a user located in front of the 130. Therefore, the user can see the object disposed on the rear surface of the transparent display device from the front surface of the transparent display device. In this case, even when the image is output to the panel, that is, even when the transparent display device according to the present invention is turned on, the user places the object on the rear surface of the transparent display device in front of the transparent display device. Can be seen at

In the transparent display device in which the panel 130 is configured in the IPS mode, the user can use the image only when the image is output to the panel 130, that is, when the transparent display device according to the present invention is turned on. The object disposed on the rear surface of the transparent display device can be viewed from the front surface of the transparent display device.

The panel 130 may be formed of a lower substrate, an upper substrate, and a liquid crystal layer formed between the lower substrate and the upper substrate and filled with liquid crystal. The polarizing film and the upper polarizing film are attached.

The upper polarizing film and the lower polarizing film are attached to the front or rear surface of the panel 130 to pass only components in a specific direction among the components of the light transmitted through the light guide plate 110. Do this.

In detail, the panel 130 drives the liquid crystal injected between the upper substrate and the lower substrate at a voltage applied to the upper substrate or the lower substrate, so that the amount of light transmitted from the light source unit 160 is transmitted. The video is output by controlling.

Seventh, the top case 140 is fastened to the cover bottom 150 to embed the panel 130 and the above components between the top case 140 and the cover bottom 150. To perform.

The top case 140 surrounds the flat outer surface of the panel 130, and the light emitted from the panel 130 is output to the outside through the open central portion of the top case.

Eighth, the light blocking panel 151 is disposed on the rear surface of the light guide plate 110. The light blocking panel 151 performs a function of reflecting light transmitted from the light guide plate 110 toward the light guide plate 110, or transmits light transmitted from a rear surface of the transparent display device to the light guide plate 110. The panel 130 transmits the light toward the front of the transparent display device.

If the user who does not want to see the back of the transparent display device adjusts the polarity supplied to the electrodes of the light blocking panel 151 so that the light blocking panel 151 does not transmit light, the light blocking panel 151 Does not transmit light, but reflects light. In this case, the light blocking panel 151 functions as a reflector in the transparent display device.

For example, in a general liquid crystal display device, after being output from the light source unit 160 and flowing into the light guide plate 110, the rear direction of the light guide plate 110, that is, the direction in which the light blocking panel 151 is disposed. There may be light traveling to. In this case, a reflector may be disposed on the rear surface of the light guide plate 110 to reflect the light back toward the panel 130.

In the transparent display device according to the present invention, the light blocking panel 151 may function as the reflective plate. That is, the light output from the light source unit 160 and introduced into the light guide plate 110 is refracted by a pattern formed in the light guide plate 110 and reflected in the direction of the panel 130, but is not reflected. There may also be light leaking out through the back of the 110. In this case, the light blocking panel 151 may perform a function of directing the outgoing light in the direction of the light blocking panel 151 to guide the light toward the panel 130.

When the user who wants to see the back of the transparent display device adjusts the polarity supplied to the electrodes of the light blocking panel 151 so that the light blocking panel 151 transmits light, the light blocking panel 151 It transmits light.

For example, while viewing an image through the transparent display device according to the present invention, a user who wants to see the rear surface of the transparent display device may adjust the polarity supplied to the electrodes of the light blocking panel 151 to control the light blocking panel ( 151 may also transmit light.

In this case, light output from the rear surface of the transparent display device passes through the rear frame 170, the light blocking panel 151, the light guide plate 110, the optical unit 152, and the panel 130. The front panel 130 may be input to an eye of a user looking at the panel 130.

Therefore, the user can see the object on the back of the transparent display device in front of the transparent display device.

The configuration of the light blocking panel 151 applied to the present invention will be briefly described as follows. The light blocking panel 151 may include a lower base substrate, electrodes formed on the lower base substrate, a partition wall formed between the electrodes to define a pixel, a dispersion liquid embedded in each of the pixels defined by the partition wall, And a common electrode formed on the charged particles, the upper base substrate, and the upper base substrate filled in the dispersion.

The lower base substrate may be formed of a transparent glass substrate or a transparent synthetic resin substrate.

The plurality of electrodes is formed on the lower base substrate. In this case, the electrodes may be formed directly on the lower base substrate, but may be formed on top of other layers formed on the lower base substrate, for example, an insulating layer. In addition, the electrodes may be formed in direct contact with the dispersion liquids embedded in the partition walls, but the electrodes may be covered by an insulating film. In this case, the insulating layer may be deposited on top of the electrodes using chemical vapor deposition (CVD).

At least one of the electrodes is formed at regular intervals between the partition walls. In this case, one pixel may be defined by the two partition walls.

The dispersion is inherent in each of the pixels defined by the partition wall. For example, the charged particles are filled in a pixel defined by two partitions, and the dispersion is inherent in the pixel. That is, the charged particles are included in the dispersion liquid inherent in the pixel defined by the two partition walls. In detail, the dispersion functions as a medium to allow the charged particles to easily move in the direction of the electrode or to move away from the electrode, depending on the polarity supplied to the electrode.

The upper base substrate may also be formed of a transparent glass substrate or a transparent synthetic resin substrate.

The common electrode may be formed on an entire surface of the upper base substrate.

The black matrix may be formed in an area corresponding to the partition wall of the upper base substrate, and a color filter may be formed in an area corresponding to the partition walls.

The charged particles have a positive polarity or a negative polarity. The charged particles may be formed in a form in which a black pigment charged with a positive polarity or a negative polarity is covered by a polymer shell. The light blocking panel 151 may transmit light or block light by controlling a property in which the charged particles spread inside the pixel.

For example, by adjusting the polarity supplied to the electrode of the light blocking panel 151, the light blocking panel 151 may reflect light without transmitting light. In this case, the light blocking panel 151 may function as a reflector in the transparent display device.

In addition, the light blocking panel 151 may transmit light by adjusting the polarity supplied to the electrode of the light blocking panel 151. In this case, the user may see a subject disposed on the rear surface of the transparent display device through the transparent display device.

Ninth, the optical unit 152 is to diffuse light passing through the light guide plate 110 or to allow light passing through the light guide plate 110 to be incident perpendicularly to the panel 130. It may be variously formed, including a diffuser sheet, a prism sheet, and the like.

That is, the optical unit 152 is disposed in the front direction of the light guide plate 110 and performs a function of converting a traveling direction of light output from the light guide plate 110 in a direction perpendicular to the light guide plate 110. .

As described above, the optical unit 152 may be formed of various kinds of sheets, but may be formed in a shape similar to that of the light blocking panel 151.

When the optical unit 152 is configured to have a shape similar to that of the light blocking panel 151, the shape of the electrode formed on the optical unit 152 is changed, or the voltage supplied to the electrode is controlled. By doing so, the characteristics of the light transmitted through the optical unit 152 may be the same as the characteristics of the light transmitted by the sheets.

Next, the set cover performs a function of supporting the module 100. To this end, the set cover may be divided into a front set cover and a rear set cover. That is, the module 100 may be mounted on the set cover by fastening the front set cover and the back set cover while the module 100 is disposed between the front set cover and the rear set cover. have.

Next, the auxiliary light source unit is mounted to the set cover or the support unit. The auxiliary light source unit performs a function of shining light on a subject disposed in the rear direction of the module 100.

Finally, the support unit performs a function of supporting the set cover. The support portion may be configured such that the set cover may be disposed perpendicular to the ground, or may be configured so that the set cover may be disposed obliquely on the ground.

4 is a perspective view of an example of a transparent display device according to a first embodiment of the present invention. In particular, FIG. 4 is a perspective view of the transparent display device viewed from the rear direction of the transparent display device. FIG. 5 is a side view of a transparent display device according to a first embodiment of the present invention, and is an exemplary view of the transparent display device shown in FIG. 4 as viewed from the left side of the transparent display device shown in FIG. 4. The transparent display device according to the first embodiment of the present invention uses the module 100 illustrated in FIG. 3.

As shown in FIGS. 3 and 4, the transparent display device 200 according to the present invention is disposed on a panel 130 for outputting an image and on a rear surface of the panel 130 to transmit or block light. A module 100 including the light blocking panel 151, a set cover 181 for supporting the module 100, a support 182 for supporting the set cover, and the support 182. And an auxiliary light source unit 190 for illuminating the object 20 arranged in the back direction of the 100.

First, as shown in FIG. 3, the module 100 includes a cover bottom 150, a rear frame 170 disposed on the cover bottom 150, and a front surface of the rear frame 170. The light blocking panel 151 disposed, the light guide plate 110 disposed on the front surface of the light blocking panel 151, the light source unit 160 disposed on the side surface of the light guide plate 110, and disposed on the front surface of the light guide plate 110. An optical unit 152 for converting the light output from the light source unit 160 through the light guide plate 110 perpendicular to the plane of the light guide plate 110, and disposed in front of the optical unit 152 to use the light; Mounted to the panel 130 for outputting an image, the cover bottom 150, and coupled to the cover bottom 150 in a front direction of the guide panel 120 and the panel 130 to guide the components. The top case 140 is included.

Next, the set cover 181 performs a function of supporting the module 100.

To this end, the set cover 181 may be divided into a front set cover and a rear set cover. For example, in FIG. 4, the set cover 181 is not separated into the front set cover and the rear set cover, but the front set cover covers the front direction of the module, and the back set cover is It may be configured to cover the back direction of the module.

When the module 100 is disposed between the front set cover and the rear set cover, the front set cover and the rear set cover are fastened so that the module 100 can be mounted on the set cover 181. Can be.

In this case, one side of the four sides of the set cover 181 on which the support part 182 is mounted may be formed thinner than the other three sides, as shown in FIG. 4.

Next, the support part 182 performs a function of supporting the set cover 181. The support part 182 may be configured such that the set cover 181 may be disposed obliquely on the ground.

For example, as shown in FIGS. 4 and 5, in a state in which one side of the support part 182 is mounted on the side of the set cover 181, the other side of the support part 182 is set in the set cover 181. When spaced apart in the back direction of the), the set cover 181 and the support portion 182 may be in the form of supporting each other.

Therefore, the transparent display device may be disposed on the ground by the set cover 181 and the support part 182.

To this end, the support portion 182, the first frame 182a extending in the rear direction from the side of the set cover 181 and the first frame 182a from the end of the first frame 182a It may be configured to include a second frame 182b extending perpendicular to and extending to be disposed in the rear direction of the set cover 181.

Here, the first frame 182a may be rotatably mounted on the side of the set cover 181. That is, the first frame 182a may be mounted on the side of the set cover 181 by a fastening device 183 such as a hinge, and may be rotated using the fastening device 183.

Accordingly, the first frame 182a may be disposed to be in close contact with the side surface of the set cover 181, and as shown in FIGS. 4 and 5, the first frame 182a may be disposed in the rear direction of the set cover 181. It may be.

The second frame 182b extends perpendicularly to the first frame 182a from an end of the first frame 182a. In this case, the second frame 182b may extend from the first frame 182a to be disposed in the rear direction of the set cover 181.

The second frame 182b may be configured to be in close contact with the bottom surface of the set cover 181 when the first frame 182a is in close contact with the side of the set cover 181.

For example, as indicated by dotted lines in FIGS. 4 and 5, the second frame 182b may be in close contact with the bottom surface of the set cover 181. To this end, the length of the first frame 181 may be the same as the length of the set cover 181 or slightly larger than the length of the set cover 181.

In addition, although not shown in the drawing, the support part 182 extends in the rear direction from another side facing the side on which the first frame 182a is mounted, and the second frame 182b. It may further include a third frame connected to the end of the).

For example, the support part 182 illustrated in FIGS. 4 and 5 is formed in a 'b' shape, but the support part 182 may be formed in a 'c' shape.

In this case, the third frame and the first frame 182a are mounted at each of both ends of the second frame 182b while being mounted on each of both sides of the set cover 181 facing each other. Can be mounted.

The auxiliary light source unit 190 may include at least one of side surfaces of the first frame 182a and the second frame 182b facing the rear direction and other side surfaces adjacent to the side surfaces. It can be mounted on either side.

For example, in FIG. 4 and FIG. 5, the auxiliary light source unit 190 is mounted on side surfaces of the first frame 182a and the second frame 182b that face in the rear direction. have.

That is, the auxiliary light source unit 190 is mounted on the side facing the rear direction among the side surfaces of the first frame 182a, and the side facing the rear direction among the side surfaces of the second frame 182b. In addition, the auxiliary light source unit 190 is mounted.

As another example, although not shown in the drawings, among the side surfaces of the first frame 182a and the second frame 182b, the other side surfaces adjacent to the side surfaces facing the rear direction may be formed. The auxiliary light source unit 190 may be mounted.

For example, in the first frame 182a illustrated in FIG. 4, a side adjacent to a surface on which the auxiliary light source unit 190 is mounted, that is, a side facing in a direction perpendicular to the rear direction, and The auxiliary light source unit 190 is mounted on each side of the second frame 182b adjacent to the surface on which the auxiliary light source unit 190 is mounted, that is, the side surfaces facing in a direction perpendicular to the back direction. Can be.

As another example, the auxiliary light source unit 190 may be mounted on each of all of the above-described aspects.

Lastly, the auxiliary light source unit 190 performs a function of illuminating the object 20 disposed in the rear direction of the module 100.

As described above, the auxiliary light source unit 190 may be mounted on at least one of the first frame 182a and the second frame 182b.

In addition, the auxiliary light source unit 190 may include side surfaces of the first frame 182a and the second frame 182b that face the rear direction and other side surfaces adjacent to the side surfaces. It may be mounted on at least one side of the.

The auxiliary light source unit 190 includes a light source 192 for outputting light and a substrate 192 for supporting the light source.

A light emitting diode (LED) may be applied to the light source 192.

In particular, as the light source 192, a high color light emitting diode (LED) that can best express the color of the object 20 may be applied.

The direction in which light is output from the auxiliary light source unit 190 may be adjusted by an angle formed by the set cover 181 and the support unit 182.

In addition, the direction in which light is output from the auxiliary light source unit 190 may be adjusted by adjusting the angles of the auxiliary light source unit 190 mounted to the first frame 182a and the second frame 182b. It may be.

To this end, as shown in FIG. 5, an adjusting unit 193 for adjusting an angle of the auxiliary light source unit 190 may be mounted at an end of the second frame 182b of the support unit 182. .

The user may freely change the angle of the auxiliary light source unit 190 by rotating the adjusting unit 193 with a driver or various other tools or hands. As the angle of the auxiliary light source unit 190 is changed, a direction in which light is output from the auxiliary light source unit 190 may be variously changed.

FIG. 6 is an exploded perspective view illustrating a configuration of a module applied to the transparent display device according to the second embodiment of the present invention. FIG. FIG. 7 is a side view of an example of a transparent display device according to a second embodiment of the present invention, and FIG. 8 is a side view of a transparent display device disposed on a rear surface of the transparent display device using the transparent display device according to the second embodiment of the present invention. It is an exemplary view schematically showing how to see things. In the following description, the same or similar contents as those described with reference to FIGS. 3 to 5 will be omitted or simply described.

As illustrated in FIGS. 6 and 7, the transparent display device 200 according to the present invention includes a panel 130 for outputting an image and a rear surface of the panel 130 to transmit or block light. A module 100 including the light blocking panel 151, a set cover 181 for supporting the module 100, a support part 182 for supporting the set cover 181, and the set cover 181. And an auxiliary light source unit 190 for illuminating the subject 20 arranged in the rear direction of the module 100.

First, as shown in FIG. 6, the module 100 includes a cover bottom 150, a rear frame 170 disposed on the cover bottom 150, and a front surface of the rear frame 170. The light blocking panel 151 disposed, the light guide plate 110 disposed on the front surface of the light blocking panel 151, the light source unit 160 disposed on the side surface of the light guide plate 110, and disposed on the front surface of the light guide plate 110. An optical unit 152 for converting the light output from the light source unit 160 through the light guide plate 110 perpendicular to the plane of the light guide plate 110, and disposed in front of the optical unit 152 to use the light; Mounted to the panel 130 for outputting an image, the cover bottom 150, and coupled to the cover bottom 150 in a front direction of the guide panel 120 and the panel 130 to guide the components. The top case 140 is included.

First, the cover bottom 150 is fastened to the top case 140 disposed on the front surface of the panel 130 to perform a function of embedding the components. The cover bottom hole 151a is formed in the cover bottom so that the light output from the auxiliary light source unit 190 can be output to the outside. Therefore, the cover bottom hole 151a is formed at a position corresponding to the auxiliary light source unit 190.

Second, the rear frame 170 is mounted on the cover bottom 150 and supports the light blocking panel 151.

Third, the light guide panel 110 scatters and reflects the light output from the light source unit 160 and transmits the light to the panel 110 disposed above the LGP 110. Do this.

Fourth, the light source unit 160, for injecting light into the panel 130 through the light guide plate 110, may be composed of a light source for outputting light and a printed circuit board for supporting the light source. have. As the light source, a light emitting diode package may be applied.

Fifth, the guide panel 120 guides the rear frame 170, the light blocking panel 151, the light guide plate 110, the light source unit 160, and the optical unit 152, and the panel 130. ) To support this function.

Sixth, the panel 130 includes pixels formed in regions defined by intersections of gate lines and data lines formed in the display area, and a thin film transistor TFT is formed in each of the pixels. The panel 130 may be driven in an IPS mode or a TN mode.

Seventh, the top case 140 is fastened to the cover bottom 150 to embed the panel 130 and the above components between the top case 140 and the cover bottom 150. To perform.

Eighth, the light blocking panel 151 is disposed on the rear surface of the light guide plate 110. The light blocking panel 151 performs a function of reflecting light transmitted from the light guide plate 110 toward the light guide plate 110, or transmits light transmitted from a rear surface of the transparent display device to the light guide plate 110. The panel 130 transmits the light toward the front of the transparent display device.

If the user who does not want to see the back of the transparent display device adjusts the polarity supplied to the electrodes of the light blocking panel 151 so that the light blocking panel 151 does not transmit light, the light blocking panel 151 Does not transmit light, but reflects light. In this case, the light blocking panel 151 functions as a reflector in the transparent display device.

When the user who wants to see the back of the transparent display device adjusts the polarity supplied to the electrodes of the light blocking panel 151 so that the light blocking panel 151 transmits light, the light blocking panel 151 It transmits light. Thus, as shown in FIG. 8, the user 30 may see the object 20 on the back of the transparent display device in front of the transparent display device.

The light blocking panel 151 applied to the present invention includes a lower base substrate, electrodes formed on the lower base substrate, partition walls formed between the electrodes to define pixels, and pixels defined by the partition walls, respectively. And a common electrode formed on the upper base substrate and the upper base substrate.

Ninth, the optical unit 152 is to diffuse light passing through the light guide plate 110 or to allow light passing through the light guide plate 110 to be incident perpendicularly to the panel 130. It may be variously formed, including a diffuser sheet, a prism sheet, and the like. As described above, the optical unit 152 may be formed of various kinds of sheets, but may be formed in a shape similar to that of the light blocking panel 151.

Next, the set cover 181 performs a function of supporting the module 100.

To this end, the set cover 181 may be divided into a front set cover and a rear set cover. For example, in FIG. 7, the set cover 181 is not separated into the front set cover and the rear set cover, but the front set cover covers the front direction of the module, and the back set cover is It may be configured to cover the back direction of the module.

When the module 100 is disposed between the front set cover and the rear set cover, the front set cover and the rear set cover are fastened so that the module 100 can be mounted on the set cover 181. Can be.

The set cover opening 181a may be provided at the rear set cover 181 so that light output from the auxiliary light source unit 190 and transmitted through the cover bottom hole 151a may be output to the outside of the transparent display device. ) Is formed. That is, the set cover opening 181a is formed at a portion of the rear surface of the set cover 181 that corresponds to the auxiliary light source unit 190. Therefore, the set cover opening 181a may be formed at various positions among the rear surfaces of the set cover 181 according to the position of the auxiliary light source unit 190.

The set cover opening 181a may not be provided with any structure. However, in order to prevent foreign matter from flowing into the transparent display device through the set cover opening 181a, transparent glass or transparent synthetic resin may be mounted on the set cover opening 181a.

Next, the support part 182 performs a function of supporting the set cover 181. The support part 182 may be configured such that the set cover 181 may be disposed perpendicular to the ground.

For example, as shown in FIG. 7, the support 182 may be mounted on the bottom or bottom of the set cover 181, and the bottom of the support 182 may be formed in a pedestal form. .

Lastly, the auxiliary light source unit 190 performs a function of illuminating the object 20 disposed in the rear direction of the module 100.

As shown in FIG. 7, the auxiliary light source unit 190 is connected to the light source unit 160 that supplies light to the light guide plate 110 from the side of the light guide plate 110 mounted on the module 100. And may be mounted in the set cover 181.

The light source unit 160 includes a main light source 162 for outputting light and a main board 161 for supporting the light source 162.

A light emitting diode (LED) may be applied to the main light source 162.

The auxiliary light source unit 190 includes a light source 192 for outputting light and a substrate 191 for supporting the light source 192.

A light emitting diode (LED) may be applied to the light source 192.

In particular, as the light source 192, a high color light emitting diode (LED) that can best express the color of the object 20 may be applied.

That is, the light source 192 may be a light emitting diode (LED) having a high color rendering index (CRI) of 90 or more. By shining light onto the surface of the object 20 using the light source 192, the relative transparency and color characteristics of the transparent display device may be improved.

The substrate 191 may be formed to be connected to the main substrate 161.

In this case, the substrate 191 may be formed to be inclined at a predetermined angle so that the light source 192 faces the rear direction.

For example, as illustrated in FIG. 7, the substrate 191 is bent from the main board 161 toward the lower end of the front surface of the set cover 181, and then, again, of the set cover 181. It may be bent in the direction of the lower end of the back. The light source 192 is mounted on a surface of a portion of the substrate 191 that is bent in the direction of the lower end of the rear surface of the set cover 181.

As another example, the substrate 191 may be bent directly from the main board 161 toward the lower end of the rear surface of the set cover 181. Here, the light source 192 is mounted on a surface of the bent portion.

The direction in which light is output from the auxiliary light source unit 190 may be controlled by an angle formed by the bent portion of the substrate 191.

In addition, the direction in which light is output from the auxiliary light source unit 190 may be adjusted by adjusting the angle of the bent portion of the substrate 191.

To this end, the bent portion may be composed of a connecting device such as a hinge. That is, by rotating the connection device, a direction in which light is output from the auxiliary light source unit 190 may be variously changed.

Briefly summarized the present invention as described above is as follows.

According to the present invention, by using a high color light emitting diode (LED), the auxiliary light source unit 190 capable of illuminating a subject disposed on the rear surface of the transparent display device can be configured to improve transparency and color sense characteristics of the transparent display device. Can be.

That is, the transparent display device according to the present invention includes an auxiliary light source unit 190 equipped with a light emitting diode (LED) having a high color rendering index, so that transparency can be improved as compared with a conventional transparent display device.

In detail, in recent years, development of a transparent display device using a liquid crystal display (LCD) has been actively progressed. The present invention can improve transparency and color characteristics of a transparent display device by using a high color light emitting diode (LED) that can illuminate a subject disposed on the back of the transparent display device as the auxiliary light source unit 190. have.

Those skilled in the art to which the present invention pertains will understand that the present invention can be implemented in other specific forms without changing the technical spirit or essential features. Therefore, it is to be understood that the embodiments described above are exemplary in all respects and not restrictive. The scope of the present invention is shown by the following claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts should be construed as being included in the scope of the present invention. do.

160: light source unit 110: light guide plate
120: guide panel 130: liquid crystal panel
140: top case 150: cover bottom
151 shading panel 170 rear frame
152: light source unit 111: lower base substrate

Claims (10)

A module including a panel for outputting an image and a light shielding panel disposed on a rear surface of the panel and transmitting or blocking light;
A set cover for supporting the module;
A support for supporting the set cover;
A light source unit supplying light to the light guide plate from a side of the light guide plate mounted to the module; And
An auxiliary light source unit mounted to the set cover or the support unit to illuminate a subject disposed in the rear direction of the module;
The support portion,
A first frame extending in the rear direction from a side of the set cover; And
A second frame extending perpendicular to the first frame from an end of the first frame and extending to be disposed in a rear direction of the set cover,
The auxiliary light source unit,
And a transparent display device mounted on at least one of the first frame and the second frame. delete The method of claim 1,
The first frame is rotatably mounted on the side of the set cover,
The second frame is in close contact with the bottom surface of the set cover when the first frame is in close contact with the side of the set cover. The method of claim 1,
The support unit is equipped with a control unit for adjusting the angle of the auxiliary light source unit. The method of claim 1,
The support portion,
And a third frame extending in the rear direction from another side facing the side on which the first frame is mounted and connected to an end of the second frame. The method of claim 1,
The auxiliary light source unit,
A transparent display device mounted on at least one of side surfaces of the first frame and the second frame facing the rear direction and another side surface adjacent to the side surfaces. A module including a panel for outputting an image and a light shielding panel disposed on a rear surface of the panel and transmitting or blocking light;
A set cover for supporting the module;
A support for supporting the set cover;
A light source unit supplying light to the light guide plate from a side of the light guide plate mounted to the module; And
An auxiliary light source unit mounted to the set cover or the support unit to illuminate a subject disposed in the rear direction of the module;
The auxiliary light source unit is connected to the light source unit and is mounted inside the set cover. The method of claim 7, wherein
And a set cover opening is formed in a portion of the rear surface of the set cover that corresponds to the auxiliary light source portion. The method of claim 7, wherein
The auxiliary light source unit,
A substrate connected to the light source unit; And
And a light source mounted on the substrate. The method of claim 9,
The substrate is inclined at a predetermined angle so that the light source faces the rear direction.
KR1020130126948A 2013-10-24 2013-10-24 Transparent display device KR102040163B1 (en)

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KR20170056841A (en) 2015-11-16 2017-05-24 엘지전자 주식회사 Mobile terminal and method for controlling the same
CN206627729U (en) * 2017-03-27 2017-11-10 京东方科技集团股份有限公司 A kind of Transparence Display module and transparent display
CN113366554A (en) * 2018-12-11 2021-09-07 Ａｇｃ株式会社 Transparent glass with transparent display
CN113994412A (en) 2020-05-21 2022-01-28 松下电器（美国）知识产权公司 Display system and display control method
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