CN110928046A - Transparent display device - Google Patents

Transparent display device Download PDF

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Publication number
CN110928046A
CN110928046A CN201911245108.6A CN201911245108A CN110928046A CN 110928046 A CN110928046 A CN 110928046A CN 201911245108 A CN201911245108 A CN 201911245108A CN 110928046 A CN110928046 A CN 110928046A
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CN
China
Prior art keywords
transparent
guide plate
display device
light guide
light
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN201911245108.6A
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Chinese (zh)
Inventor
覃佐波
黄顺运
张亚荣
赵昌源
田锋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hefei Toppower Tatsu Intelligent Equipment Co Ltd
Original Assignee
Hefei Toppower Tatsu Intelligent Equipment Co Ltd
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 Hefei Toppower Tatsu Intelligent Equipment Co Ltd filed Critical Hefei Toppower Tatsu Intelligent Equipment Co Ltd
Priority to CN201911245108.6A priority Critical patent/CN110928046A/en
Publication of CN110928046A publication Critical patent/CN110928046A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336Illuminating devices
    • G02F1/133615Edge-illuminating devices, i.e. illuminating from the side
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/13338Input devices, e.g. touch panels
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509Filters, e.g. light shielding masks
    • G02F1/133512Light shielding layers, e.g. black matrix
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509Filters, e.g. light shielding masks
    • G02F1/133514Colour filters

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

The invention discloses a transparent display device, which comprises a transparent liquid crystal display screen and a backlight module arranged on the light incident surface of the transparent liquid crystal display screen, wherein the backlight module comprises a transparent light guide plate and a dimming film parallel to the transparent light guide plate, the dimming film is in full-lamination connection with the dot surface of the transparent light guide plate, the transparent liquid crystal display screen is in full-lamination with the light emergent surface of the transparent light guide plate, the edge of the transparent light guide plate is provided with a light source, a plurality of transparent liquid crystal displays are sequentially in full-lamination on the same transparent light guide plate, the dimming film comprises a white dimming film and a black dimming film, the rough surface of the white dimming film is in full-lamination connection with the mirror surface of the black dimming film, and the mirror surface; the display device at any time can realize the switching between the transparent display and the non-transparent display of the display device at any time and can display screen information more clearly.

Description

Transparent display device
Technical Field
The invention relates to the technical field of transparent display, in particular to a transparent display device.
Background
A transparent display is a display that has a certain degree of light transmittance, so that a user can clearly see the background behind the display while viewing the display. Therefore, the transparent display is suitable for being applied to building windows, high-speed rails, subways, shop windows and the like.
In the prior art, the transparent display and the non-transparent display are realized by two mutually independent devices, the switching display of the transparent display and the non-transparent display at any time is difficult to realize by the same device, meanwhile, the image quality of the conventional transparent display is very rough, and the cost of the transparent display is relatively high.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides a transparent display device, which can realize the switching between the transparent display and the non-transparent display of the display device at any time and can more clearly display screen information.
The invention provides a transparent display device, which comprises a transparent liquid crystal display screen and a backlight module arranged on the light incoming surface of the transparent liquid crystal display screen, wherein the backlight module comprises a transparent light guide plate and a light adjusting film parallel to the transparent light guide plate, the light adjusting film is in full-lamination connection with the lattice point surface of the transparent light guide plate, the transparent liquid crystal display screen is in full-lamination with the light outgoing surface of the transparent light guide plate, and the edge of the transparent light guide plate is provided with a light source.
Furthermore, a plurality of transparent liquid crystal screens are sequentially and fully attached to the same transparent light guide plate.
Further, the light adjusting film comprises a white light adjusting film and a black light adjusting film, the rough surface of the white light adjusting film is in full-lamination connection with the mirror surface of the black light adjusting film, and the mirror surface of the white light adjusting film is in full-lamination connection with the lattice point surface of the transparent light guide plate.
Furthermore, the transparent light guide plate is made of glass, and the thickness of the light adjusting film is 0.05-10 mm.
Furthermore, a plurality of transparent smooth concave mesh points are arranged on the mesh point surface of the transparent light guide plate, the diameter of each concave mesh point is 0.01-0.3mm, the depth of each concave mesh point is 0.01-0.1mm, the angle of the concave bottom of each concave mesh point is 60-170 degrees, and the distance between every two adjacent concave mesh points is 0.1-6 mm.
Furthermore, a touch panel is arranged in parallel on the display surface of the transparent liquid crystal screen, the touch panel is in full-fit connection with the transparent liquid crystal screen, and the thickness of the touch panel is 0.1-6 mm.
Furthermore, the transparent light guide plate is connected with the transparent liquid crystal screen and the light adjusting film through optical cement respectively, the touch panel is in full-lamination connection with the transparent liquid crystal screen through the optical cement, the refractive index of the optical cement is smaller than that of the transparent light guide plate, and the thickness of the optical cement is 0.01-2 mm.
Furthermore, the transparent liquid crystal screen and the backlight module form a display device, a frame is arranged around the outer side of the display device, and the thickness of the display device is 5-50 mm.
Furthermore, light sources are respectively arranged on the periphery of the outer side of the transparent light guide plate, the light sources are fixedly arranged on the inner surface of the periphery of the frame, and the light sources are LED light bars.
Furthermore, the light emitting surface of the LED lamp strip is parallel to the light incident surface of the transparent light guide plate.
The transparent display device provided by the invention has the advantages that: according to the transparent display device provided by the structure, the transparent light guide plate is respectively in full fit with the transparent liquid crystal screen and the light adjusting film, so that transparent display and non-transparent display of the display device can be switched at any time, the overall thickness of the display device is reduced, and the weight of the display device is lightened; after the light adjusting film and the transparent light guide plate are completely laminated, noise points generated by the mesh points after LED points and various stripes generated during the production of the light guide plate can be optimized, and the purity of the whole picture is further improved after the full lamination, so that the picture is higher in definition; a plurality of transparent liquid crystal screens can be spliced on the same transparent light guide plate to realize ultra-large screen display; the transparent display and the non-transparent display of the display device can be switched at any time by controlling the opening and closing of the white light adjusting film and the black light adjusting film; most of the devices of the whole display device are made of materials with stable physical properties such as glass and metal, so that the display device can be used in the fields of outdoor, military industry, polar climate and the like.
Drawings
FIG. 1 is a schematic structural diagram of a transparent display device according to the present invention;
FIG. 2 is a cross-sectional view M of FIG. 1;
FIG. 3 is a schematic structural view of a plurality of transparent liquid crystal panels spliced on the same transparent light guide plate;
FIG. 4 is a schematic view of the light transmittance display when the white and black dimming films are on;
FIG. 5 is a schematic view of a light-shielding display with white and black dimming films turned off;
the touch screen comprises a 1-transparent liquid crystal screen, a 2-backlight module, a 3-light source, a 4-touch panel, a 5-frame, a 6-external connecting line, a 21-transparent light guide plate, a 22-dimming film, 23-optical glue, 211-concave lattice points, a 221-white dimming film and a 222-black dimming film.
Detailed Description
The present invention is described in detail below with reference to specific embodiments, and in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.
Referring to fig. 1 to 5, the transparent display device provided by the invention comprises a transparent liquid crystal screen 1 and a backlight module 2 arranged on a light incident surface of the transparent liquid crystal screen 1, wherein the backlight module 2 comprises a transparent light guide plate 21 and a dimming film 22 parallel to the transparent light guide plate 21, the dimming film 22 is in full-lamination connection with a mesh surface of the transparent light guide plate 21, the transparent liquid crystal screen 1 is in full-lamination with a light emergent surface of the transparent light guide plate 21, and a light source 3 is arranged at the edge of the transparent light guide plate 21.
The transparent light guide plate 21 is made of glass, and the light transmittance of the transparent light guide plate made of glass to the light source is large, so that the utilization rate of the transparent liquid crystal screen 1 to the light source and the image display quality are improved, and the thickness (namely the light mixing height) of the backlight module 2 in the display device is reduced. The problem of because of the material harmomegathus nature is big, the support nature is poor, easy ageing deformation in the conventional plastics light guide plate is solved, the curtain of outdoor super narrow frame is shown can be realized. The surface of the light-emitting surface of the transparent light guide plate 21 is flat and cannot have any other structure, and the mesh point surface of the transparent light guide plate 21 cannot have other structures except mesh points, so that light scattering is avoided, and transmittance is not affected.
The transparent light guide plate 21 is respectively connected with the transparent liquid crystal display 1 and the light adjusting film 22 through optical cement 23, the thickness of the light adjusting film 22 is 0.05-10mm, the thickness can be adopted according to different requirements, the overall thickness of the display device is reduced, the overall strength is increased, and the weight of the display device is reduced; after the light adjusting film 22 and the transparent light guide plate 21 are completely attached, noise points generated by the mesh points after LED points and various stripes generated during the production of the light guide plate can be optimized, and the purity of the whole picture is further improved after the full attachment, so that the picture is higher in definition.
The optical adhesive 23 may be an Optical Clear Adhesive (OCA) or an aqueous adhesive (OCR), and regardless of the adhesive, the refractive index of the fully-laminated optical adhesive 23 is smaller than that of the transparent light guide plate 21, so as not to affect the light transmission and the light extraction efficiency. The full-lamination optical adhesive has high purity and cannot contain impurities, crystals, bubbles and foreign matters so as to avoid influencing the transmittance, cannot have color change after long-term use and has small harmomegathus. The thickness of the fully-attached glue layer is between 0.01mm and 2 mm.
The whole display device is connected to a peripheral controller through an external wire 6, so that the display device is convenient to transport and assemble.
In the first preferred embodiment, because the maximum size of the current display screen can only be within 120 inches, the maximum size of the conventional display screen can only be 120 inches, and the conventional display screen does not realize transparent display, the production size of the transparent liquid crystal screen 1 is limited, and the transparent light guide plate 21 is firm in material, stable in physical property, and not limited in production size; therefore, a plurality of transparent liquid crystal screens 1 can be sequentially and fully attached to the same transparent light guide plate 21, as shown in fig. 3, so as to realize ultra-large screen display, light sources 3 are respectively arranged around the outer side of the transparent light guide plate 21, the light sources 3 are fixedly arranged on the inner surface around the frame 5, the light sources 3 are LED light bars, and the light outgoing surface of each LED light bar is parallel to the light incoming surface of the transparent light guide plate 21.
The transparent liquid crystal display 1 is sequentially spliced and then arranged on the light emitting surface of the transparent light guide plate 21 through full lamination of optical cement, so that the bottleneck of traditional ultra-large screen display is relieved.
In the second preferred embodiment, when the display device is embedded in a wall of a building to be used as a curtain wall display, or other people affecting the indoor use to collect and shield natural light, the dimming film 22 in the display device can be preferably processed, preferably, the dimming film 22 comprises a white dimming film 221 and a black dimming film 222, the rough surface of the white dimming film 221 is in full-lamination connection with the mirror surface of the black dimming film 222, and the mirror surface of the white dimming film 221 is in full-lamination connection with the mesh point surface of the transparent light guide plate 21. The dot surface of the transparent light guide plate 21 is provided with a plurality of transparent smooth concave dots 211, the diameter of the concave dots 211 is 0.01-0.3mm, the depth of the concave dots 211 is 0.01-0.1mm, the angle of the concave bottom of the concave dots is 60-170 degrees, and the distance between adjacent concave dots 211 is 0.1-6 mm. The light sources 3 are respectively arranged on the periphery of the outer side of the transparent light guide plate 21, the light sources 3 are fixedly arranged on the inner surfaces of the periphery of the frame 5, the light sources 3 are LED lamp bars, and the light emergent surfaces of the LED lamp bars are parallel to the light incident surface of the transparent light guide plate 21.
When the white dimming film 221 is turned off, the surface attached to the mesh surface of the transparent light guide plate 21 is in a white state, which can play a role of a reflector plate, so that the light source which does not irradiate the transparent liquid crystal screen 1 is reflected and utilized again, the utilization rate of the light source is improved, and non-transparent display in a conventional display state is realized. When the white dimming film 221 is turned on by power supply, the white dimming film is in a transparent state, and the transparent display effect of the display device is not affected. By switching the white dimming film 221, the transparent display and the normal display can be switched back and forth on the same transparent liquid crystal panel 1.
The black light adjusting film 222 is used to block light pollution, when the black light adjusting film 222 is turned off, the whole film is black, and the light on the white light adjusting film 221 is absorbed, so that light pollution to an unnecessary place is avoided. When the black dimming film 222 is turned on, it is a transparent film, and the transparent visual effect is not affected.
Therefore, in daytime, as shown in fig. 4, the white dimming film 221 and the black dimming film 222 can be turned on, and the display device on the outer wall can not influence the natural light to directly enter the room, so that the requirement of people in the room on the natural light is met. At night, as shown in fig. 5, the white dimming film 221 and the black dimming film 222 are closed, natural light cannot enter a room, light pollution cannot be caused to an unnecessary place, the shielding requirement of people on the natural light is met, and the white dimming film 221 can be used as a reflector plate.
The same function as above can be achieved by using a light control glass instead of the light control film 22 according to various environments.
In order to conveniently perform various touch operations on the whole display device, the third preferred embodiment replaces physical keys such as a mouse and the like, and realizes manual operation at any time, the touch panel 4 is arranged in parallel on the display surface of the transparent liquid crystal screen 1, the touch panel 4 is in full-lamination connection with the transparent liquid crystal screen 1, the touch panel 4 and the transparent liquid crystal screen 1 are in full-lamination by adopting optical cement, namely, the touch panel 4 is tightly combined with the transparent liquid crystal screen 1, the touch panel 4 is protected on the display surface of the transparent liquid crystal screen 1, and damage caused by external touch is prevented. Wherein, the refractive index of the optical cement 23 is smaller than that of the transparent light guide plate 21, and the thickness of the optical cement 23 is 0.01-2 mm; the touch panel 4 is a toughened touch panel, and the thickness of the touch panel 4 is 0.1-6 mm.
The fourth preferred embodiment combines the first preferred embodiment, the second preferred embodiment and the third preferred embodiment to form a display device which can be spliced, can transmit natural light, can shield natural light and can be directly operated by touching, and the display device realizes that: splicing multiple liquid crystal screens by using a transparent light guide plate 21 as a substrate to realize an oversized display screen; the switching between transparent display and non-transparent display at any time is realized, when the display screen is used for curtain wall display, the natural light injection cannot be influenced in the daytime, and the indoor normal work and rest time cannot be influenced after the light of the transparent liquid crystal screen 1 is isolated at night; the transparent light guide plate 21, the light adjusting film 22 and the transparent liquid crystal screen 1 in the display device are completely laminated, so that the whole thickness, the weight and the reinforcing strength of the display device can be reduced; the whole controller is externally connected, so that the transportation and the assembly are convenient; most of the devices of the whole display device are made of materials with stable physical properties such as glass and metal, so that the display device can be used in the fields of outdoor, military industry, polar climate and the like.
In the above embodiment, the transparent liquid crystal panel 1 and the backlight module 2 constitute the whole display device, the frame 5 is arranged around the outer side of the display device, and the thickness of the display device is 5-50 mm. The frame 5 is a metal frame.
It should be noted that the frame 5 of the whole display device is a metal frame and is opaque, and the frame 5 mainly plays a role in fixing and supporting the whole display device and protecting safety in practical use. An external wire 6 is arranged in the frame 5 in a penetrating mode, one end of the external wire 6 is connected with an LED lamp bar, a dimming film 22 and the like of the whole display device to provide a power supply and a control signal, and the other end of the external wire 6 is connected with a peripheral controller to control the display state of the whole display device. The subsequent transportation and assembly are convenient and beautiful. The structure is succinct, and the cost is cheap and suitable, and follow-up can be used for market show window display, rail display, special cabinet display, curtain show etc. display mode in batches.
The working process is as follows: the periphery of the outer side of the transparent light guide plate 21 is respectively provided with a light source 3, the light sources 3 are fixedly arranged on the inner surface of the periphery of the frame 5, and the light sources 3 are LED lamp bars. The light emitting surface of the LED light bar is parallel to the light incident surface of the transparent light guide plate 21. The LED light source is connected to a peripheral controller through an external connection wire 6, the controller transmits a control signal and a power supply to the whole display device through the external connection wire 6, the power supply drives the LED light bar to be opened to provide a point light source, the transparent light guide plate 21 breaks the point light source through concave dots 211 to be totally reflected to form a surface light source to be provided for the transparent liquid crystal screen 1, and the transparent liquid crystal screen 1 displays images on a display picture. The white dimming film 221 and the black dimming film 222 are turned on and off by receiving a control signal of an external controller, when the white dimming film 221 and the black dimming film 222 are turned on, a display screen can be seen and a subsequent object and an actual scene can be seen on the display surface of the transparent liquid crystal screen 1, and when the white dimming film 221 and the black dimming film 222 are turned off, only the display screen can be seen on the display surface of the transparent liquid crystal screen 1. And when the transparent liquid crystal screen 1 does not need to display a picture, the power supply and the control signal of the LED lamp strip are turned off.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (10)

1. The utility model provides a transparent display device, include transparent LCD screen (1) and set up in backlight unit (2) of transparent LCD screen (1) income plain noodles, a serial communication port, backlight unit (2) are including transparent light guide plate (21) and be on a parallel with the membrane (22) of adjusting luminance of transparent light guide plate (21), the membrane (22) of adjusting luminance is connected with the full laminating of the site face of transparent light guide plate (21), the play plain noodles full laminating of transparent LCD screen (1) and transparent light guide plate (21), the edge of transparent light guide plate (21) is provided with light source (3).
2. The transparent display device according to claim 1, wherein a plurality of transparent liquid crystal panels (1) are sequentially and completely bonded to the same transparent light guide plate (21).
3. The transparent display device according to claim 1, wherein the light adjusting film (22) comprises a white light adjusting film (221) and a black light adjusting film (222), a rough surface of the white light adjusting film (221) is in full-lamination with a mirror surface of the black light adjusting film (222), and a mirror surface of the white light adjusting film (221) is in full-lamination with a dot surface of the transparent light guide plate (21).
4. The transparent display device according to claim 3, wherein the transparent light guide plate (21) is made of glass, and the thickness of the light adjusting film (22) is 0.05-10 mm.
5. The transparent display device according to claim 1, wherein a plurality of transparent smooth concave dots (211) are arranged on the dot surface of the transparent light guide plate (21), the diameter of the concave dots (211) is 0.01-0.3mm, the depth of the concave dots is 0.01-0.1mm, the angle of the concave bottom of the concave dots is 60-170 degrees, and the distance between adjacent concave dots (211) is 0.1-6 mm.
6. The transparent display device according to any one of claims 1 to 5, wherein a touch panel (4) is arranged in parallel with the display surface of the transparent liquid crystal screen (1), the touch panel (4) is in full-lamination connection with the transparent liquid crystal screen (1), and the thickness of the touch panel (4) is 0.1-6 mm.
7. The transparent display device according to claim 6, wherein the transparent light guide plate (21) is connected with the transparent liquid crystal display (1) and the light adjusting film (22) through optical glue (23), the touch panel (4) and the transparent liquid crystal display (1) are in full-lamination connection through the optical glue (23), the refractive index of the optical glue (23) is smaller than that of the transparent light guide plate (21), and the thickness of the optical glue (23) is 0.01-2 mm.
8. The transparent display device according to any one of claims 1 to 5, wherein the transparent liquid crystal panel (1) and the backlight module (2) form a display device, a frame (5) is arranged around the outer side of the display device, and the thickness of the display device is 5-50 mm.
9. The transparent display device according to claim 8, wherein the light sources (3) are respectively arranged on the outer periphery of the transparent light guide plate (21), the light sources (3) are fixedly arranged on the inner peripheral surface of the frame (5), and the light sources (3) are LED light bars.
10. The transparent display device of claim 9, wherein the light emitting surface of the LED light bar is parallel to the light incident surface of the transparent light guide plate (21).
CN201911245108.6A 2019-12-06 2019-12-06 Transparent display device Pending CN110928046A (en)

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Cited By (4)

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WO2021234981A1 (en) * 2020-05-21 2021-11-25 パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカ Display system and display control method
WO2021238466A1 (en) * 2020-05-27 2021-12-02 京东方科技集团股份有限公司 Display panel and transparent display apparatus
WO2021238432A1 (en) * 2020-05-27 2021-12-02 京东方科技集团股份有限公司 Display module and transparent display apparatus
US11592667B2 (en) 2020-05-21 2023-02-28 Panasonic Intellectual Property Corporation Of America Display system and display control method

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