CN111489636B - Transparent display device - Google Patents

Transparent display device Download PDF

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Publication number
CN111489636B
CN111489636B CN202010315441.6A CN202010315441A CN111489636B CN 111489636 B CN111489636 B CN 111489636B CN 202010315441 A CN202010315441 A CN 202010315441A CN 111489636 B CN111489636 B CN 111489636B
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China
Prior art keywords
light
transparent substrate
layer
scattering layer
display device
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CN202010315441.6A
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CN111489636A (en
Inventor
王龙
秦广奎
贾南方
彭依丹
周健
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BOE Technology Group Co Ltd
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BOE Technology Group Co Ltd
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • 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
    • G02F1/133504—Diffusing, scattering, diffracting elements
    • 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
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133512—Light shielding layers, e.g. black matrix
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/54—Accessories
    • G03B21/56—Projection screens
    • G03B21/60—Projection screens characterised by the nature of the surface
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/85—Arrangements for extracting light from the devices
    • H10K50/854—Arrangements for extracting light from the devices comprising scattering means
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays

Abstract

The invention provides a transparent display device, belongs to the technical field of display, and can at least partially solve the problem that the conventional transparent display device can only display normal images on one surface to limit the application range of the conventional transparent display device. The transparent display device of the present invention has a light-transmitting region and a non-light-transmitting region, and includes: a transparent substrate; the first scattering layer is arranged in at least part of the non-light-transmitting area of the transparent substrate; the second scattering layer is arranged in at least part of the non-light-transmitting area of the transparent substrate; the first shading layer is arranged in the non-light-transmitting area of the transparent substrate, and the first scattering layer and the second scattering layer are located on different sides of the first shading layer.

Description

Transparent display device
Technical Field
The invention belongs to the technical field of display, and particularly relates to a transparent display device.
Background
With the development of the technology, the transparent display technology gradually comes into the lives of people, for example, the transparent display technology can be applied to different scenes such as a transparent refrigerator, a transparent show window, a traffic sign, a transparent vehicle-mounted display and the like.
A transparent display device of the related art can see displayed images on both sides, but displays a normal image on one side and displays an image symmetrical to the normal image on the other side for a viewer, that is, displays a reverse image, that is, the transparent display device can display a normal image on only one side, and the display mode of the transparent display device is greatly limited in the application range of the transparent display device.
Disclosure of Invention
The invention at least partially solves the problem that the conventional transparent display device can only display normal images on one side to limit the application range of the conventional transparent display device, and provides the transparent display device.
The technical scheme adopted for solving the technical problem of the invention is a transparent display device, which is provided with a light-transmitting area and a non-light-transmitting area, and comprises the following components:
a transparent substrate;
the first scattering layer is arranged in at least part of the non-light-transmitting area of the transparent substrate;
the second scattering layer is arranged in at least part of the non-light-transmitting area of the transparent substrate;
the first shading layer is arranged in a non-light-transmitting area of the transparent substrate, and the first scattering layer and the second scattering layer are located on different sides of the first shading layer.
It is further preferable that the transparent substrate has a first surface and a second surface opposite to each other, the first scattering layer and the second scattering layer are both stacked in the non-light-transmitting region of the first surface of the transparent substrate, and the first light shielding layer is located between the first scattering layer and the second scattering layer.
It is further preferable that the transparent substrate has a first surface and a second surface opposite to each other, the first scattering layer is disposed in the opaque region of the first surface of the transparent substrate, the second scattering layer is disposed in the opaque region of the second surface of the transparent substrate, and the first light shielding layer is located between the first scattering layer and the transparent substrate.
Further preferably, the transparent display device of the present embodiment further includes: the second shading layer is arranged in the non-light-transmitting area of the transparent substrate and is positioned between the second scattering layer and the transparent substrate.
It is further preferable that the light-transmitting region includes a plurality of light-transmitting sub-regions, the non-light-transmitting region includes a plurality of non-light-transmitting sub-regions, the light-transmitting sub-regions and the non-light-transmitting sub-regions are alternately arranged, and any one of the non-light-transmitting sub-regions is different from the scattering layer in the adjacent non-light-transmitting sub-region.
It is further preferable that the transparent substrate has a first surface and a second surface opposite to each other, the first scattering layer is disposed on the first surface of the transparent substrate, the second scattering layer is disposed on the second surface of the transparent substrate, and the first light shielding layer is located in the non-light-transmitting region of the first surface of the transparent substrate.
It is further preferable that the transparent substrate has a first surface and a second surface opposite to each other, the first scattering layer is disposed on the first surface of the transparent substrate, the second scattering layer is disposed on the second surface of the transparent substrate, the first light shielding layer is divided into a first sub light shielding layer and a second sub light shielding layer, the first sub light shielding layer is disposed between the first scattering layer and the transparent substrate, and the second sub light shielding layer is disposed between the second scattering layer and the transparent substrate.
It is further preferable that the transparent substrate has a first surface and a second surface opposite to each other, the first scattering layer and the second scattering layer are both located on the first surface of the transparent substrate, the first light shielding layer is divided into a first sub light shielding layer and a second sub light shielding layer, the first sub light shielding layer is disposed on the surface of the first scattering layer away from the transparent substrate, and the second sub light shielding layer is disposed between the second scattering layer and the transparent substrate.
It is further preferred that the first scattering layer is formed of scattering nanoparticles.
Further preferably, the transparent display device further includes: and the protective layer covers the first scattering layer, the second scattering layer and the first shading layer.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic cross-sectional view of a transparent display device according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of another transparent display device according to an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of another transparent display device according to an embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of another transparent display device according to an embodiment of the invention;
FIG. 5 is a schematic cross-sectional view of another transparent display device according to an embodiment of the invention;
FIG. 6 is a schematic cross-sectional view of another transparent display device according to an embodiment of the invention;
FIG. 7 is a schematic cross-sectional view of another transparent display device according to an embodiment of the invention;
FIG. 8 is a schematic top view of another transparent display device according to an embodiment of the present invention;
FIG. 9 is a schematic top view of another transparent display device according to an embodiment of the present invention;
FIG. 10 is a schematic top view of another transparent display device according to an embodiment of the invention;
FIG. 11 is a schematic cross-sectional view of a transparent display device with single-sided display;
FIG. 12 is a schematic cross-sectional view of a transparent display device with single-sided display;
FIG. 13 is a diagram illustrating an operating status of a transparent display device according to an embodiment of the present invention;
wherein the reference numerals are: 1. a transparent substrate; 11. a first surface; 12. a second surface; 2. a first scattering layer; 3. a second scattering layer; 4. a first light-shielding layer; 41. a first sub-light-shielding layer; 42. a second sub-light-shielding layer; 5. a second light-shielding layer; 7. a transparent display device; 8. an image source; a. a light-transmitting region; b. a non-light-transmitting region.
Detailed Description
In order to make the technical solutions of the present invention better understood, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The invention will be described in more detail below with reference to the accompanying drawings. Like elements in the various figures are denoted by like reference numerals. For purposes of clarity, the various features in the drawings are not necessarily drawn to scale. Moreover, certain well-known elements may not be shown in the figures.
In the following description, numerous specific details of the invention, such as structure, materials, dimensions, processing techniques and techniques of components, are set forth in order to provide a more thorough understanding of the invention. However, as will be understood by those skilled in the art, the present invention may be practiced without these specific details.
Example 1:
as shown in fig. 1 to 10, the present embodiment provides a transparent display device having a light-transmitting region a and a non-light-transmitting region b, the transparent display device including:
a transparent substrate 1;
a first scattering layer 2 disposed in at least a portion of the non-transmission region b of the transparent substrate 1;
a second scattering layer 3 disposed in at least a portion of the non-transmission region b of the transparent substrate 1;
and the first shading layer 4 is arranged in the non-light-transmitting area b of the transparent substrate 1, and the first scattering layer 2 and the second scattering layer 3 are positioned on different sides of the first shading layer 4.
As shown in fig. 13, when the transparent display device 7 of the present embodiment is in operation, an image source 8 (such as a projector) capable of providing an image is required to project a display image onto the transparent display device 7, and the image is reflected by the transparent display device 7 to the eyes of a user, so that the user can see the display image on the transparent display device 7.
Among them, since the transparent substrate 1 is transparent, the transparent display device of the present embodiment can realize transparent display, that is, the other side of the transparent display device can be seen from one side of the transparent display device. The transparent substrate 1 may be made of glass, polyimide film (PI), polyester resin (PET) or other suitable transparent film materials.
When the image source projects a display image onto the first scattering layer 2 or the second scattering layer 3, the first scattering layer 2 or the second scattering layer 3 screens the received light and reflects the light to be reflected so that a user can see a clear and normal image.
The first light-shielding layer 4 is opaque and is located in the non-transparent region b of the transparent substrate 1, so that the non-transparent region b of the transparent substrate 1 is opaque. The first scattering layer 2 and the second scattering layer 3 are located on different sides of the first light shielding layer 4, so that the first scattering layer 2 and the second scattering layer 3 can respectively screen and reflect light forming images on different sides of the first light shielding layer 4, and a user can see images of different light on different sides of the first light shielding layer 4 (namely different sides of the transparent display device); meanwhile, due to the arrangement of the first light shielding layer 4, images on both sides do not affect each other.
In the transparent display device of the present embodiment, by providing the first scattering layer 2 and the second scattering layer 3 on different sides of the first light shielding layer 4, not only the transparent display of the transparent display device can be ensured, but also different images can be displayed on different sides of the transparent display device, thereby expanding the application range of the transparent display device. The transparent display device of the embodiment is particularly suitable for a large-size transparent display device, and has the advantages of low cost and easy implementation.
Preferably, a transparent display device of the present embodiment is: the transparent substrate 1 has a first surface 11 and a second surface 12 opposite to each other, the first scattering layer 2 and the second scattering layer 3 are both stacked in the non-light-transmitting region b of the first surface 11 of the transparent substrate 1, and the first light-shielding layer 4 is located between the first scattering layer 2 and the second scattering layer 3.
As shown in fig. 1, that is, the first scattering layer 2 and the second scattering layer 3 are located on the same side of the transparent substrate 1, but the first scattering layer 2 and the second scattering layer 3 are still located on both sides of the first light shielding layer 4, so that the first image source emits light for forming an image onto the first scattering layer 2, and a first image is formed on one side of the transparent display device (i.e., the side corresponding to the first surface 11 of the transparent substrate 1); the second image source emits light forming an image onto the second scattering layer 3 through the transparent substrate 1, and forms a second image on the other side of the transparent display device (i.e., the side corresponding to the second surface 12 of the transparent substrate 1).
It should be noted that the sizes of the first scattering layer 2 and the second scattering layer 3 may be the same, and the size of the first light shielding layer 4 may be slightly larger than the size of the first scattering layer 2 or the second scattering layer 3 so that the light rays at two sides of the transparent display device do not affect each other, specifically, in a direction parallel to the transparent substrate 1, the size of the first light shielding layer 4 is 2 to 10um, preferably 2 to 3um larger than the size of the first scattering layer 2 or the second scattering layer 3.
Preferably, another transparent display device of the present embodiment is: the transparent substrate 1 has a first surface 11 and a second surface 12 opposite to each other, the first scattering layer 2 is disposed in the non-light-transmitting region b of the first surface 11 of the transparent substrate 1, the second scattering layer 3 is disposed in the non-light-transmitting region b of the second surface 12 of the transparent substrate 1, and the first light-shielding layer 4 is disposed between the first scattering layer 2 and the transparent substrate 1.
As shown in fig. 2, that is, the first scattering layer 2 and the second scattering layer 3 are located on different sides of the transparent substrate 1, so that the first image source emits light for forming an image onto the first scattering layer 2 to form a first image on one side of the transparent display device (i.e., the side corresponding to the first surface 11 of the transparent substrate 1); the second image source directs light forming an image onto the second scattering layer 3 to form a second image on the other side of the transparent display device (i.e., the side corresponding to the second surface 12 of the transparent substrate 1).
Preferably, another transparent display device of the present embodiment is: the transparent display device further includes: and a second light shielding layer 5 disposed in the non-light-transmitting region b of the transparent substrate 1 and between the second scattering layer 3 and the transparent substrate 1.
As shown in fig. 3, the transparent display device is an improvement of the previous transparent display device, that is, the second light shielding layer 5 is disposed between the second scattering layer 3 and the transparent substrate 1, so that the images on both sides of the transparent substrate 1 can be further prevented from affecting each other, and the display effect of the double-sided display of the transparent display device can be further ensured.
Preferably, the light-transmitting area a comprises a plurality of light-transmitting sub-areas, the non-light-transmitting area b comprises a plurality of non-light-transmitting sub-areas, the light-transmitting sub-areas and the non-light-transmitting sub-areas are alternately arranged, and the type of the scattering layer in any one non-light-transmitting sub-area is different from that in the adjacent non-light-transmitting sub-area.
In this case, the first scattering layers 2 and the second scattering layers 3 are arranged alternately in the nontransparent subregions. The light-transmitting sub-regions and the non-light-transmitting sub-regions are alternately arranged, so that images displayed on the transparent display device are clear, and the transparent effect of the transparent display device can be ensured.
The non-light-transmitting subregion may be rectangular and may have a length and width dimension of 2 to 50 um. The transmittance of the transparent display device of the present embodiment may be 20% or more, that is, the proportion of the light-transmitting sub-region in the whole screen is 20% or more.
The arrangement of the light transmissive sub-regions and the non-light transmissive sub-regions may be as shown in fig. 8. It should be noted that the arrangement of the light-transmitting sub-region and the non-light-transmitting region b is not limited to the above arrangement, and may be as shown in fig. 9 or fig. 10.
Preferably, another transparent display device of this embodiment is: the transparent substrate 1 has a first surface 11 and a second surface 12 opposite to each other, the first scattering layer 2 is disposed on the first surface 11 of the transparent substrate 1, the second scattering layer 3 is disposed on the second surface 12 of the transparent substrate 1, and the first light shielding layer 4 is located in the non-light-transmitting region b of the first surface 11 of the transparent substrate 1.
As shown in fig. 4, that is, the first scattering layer 2 and the second scattering layer 3 are located on different sides of the transparent substrate 1, so that the first image source emits light for forming an image onto the first scattering layer 2 to form a first image on one side of the transparent display device (i.e., the side corresponding to the first surface 11 of the transparent substrate 1); the second image source emits light forming an image onto the second scattering layer 3, and forms a second image on the other side of the transparent display device (i.e., the side corresponding to the second surface 12 of the transparent substrate 1).
Preferably, another transparent display device of the present embodiment is: the transparent substrate 1 has a first surface 11 and a second surface 12 opposite to each other, the first scattering layer 2 is disposed on the first surface 11 of the transparent substrate 1, the second scattering layer 3 is disposed on the second surface 12 of the transparent substrate 1, the first light shielding layer 4 is divided into a first light sub-shielding layer 41 and a second light sub-shielding layer 42, the first light sub-shielding layer 41 is disposed between the first scattering layer 2 and the transparent substrate 1, and the second light sub-shielding layer 42 is disposed between the second scattering layer 3 and the transparent substrate 1.
As shown in fig. 5, that is, the first scattering layer 2 and the second scattering layer 3 are located on different sides of the transparent substrate 1, and the first sub-light-shielding layer 41 and the second sub-light-shielding layer 42 are also located on different sides of the transparent substrate 1, so that the first image source emits light for forming an image onto the first scattering layer 2, and a first image is formed on one side of the transparent display device (i.e., the side corresponding to the first surface 11 of the transparent substrate 1); the second image source directs light forming an image onto the second scattering layer 3 to form a second image on the other side of the transparent display device (i.e., the side corresponding to the second surface 12 of the transparent substrate 1).
In the transparent display device, the first sub-light-shielding layer 41 and the second sub-light-shielding layer 42 may be both located in all the opaque regions, as shown in fig. 6, and thus, the images on both sides of the transparent substrate 1 may be further prevented from affecting each other.
Preferably, another transparent display device of the present embodiment is: the transparent substrate 1 has a first surface 11 and a second surface 12 opposite to each other, the first scattering layer 2 and the second scattering layer 3 are both located on the first surface 11 of the transparent substrate 1, the first light shielding layer 4 is divided into a first sub light shielding layer 41 and a second sub light shielding layer 42, the first sub light shielding layer 41 is disposed on the surface of the first scattering layer 2 far away from the transparent substrate 1, and the second sub light shielding layer 42 is disposed between the second scattering layer 3 and the transparent substrate 1.
As shown in fig. 7, that is, the first scattering layer 2 and the second scattering layer 3 are located on the same side of the transparent substrate 1, and the first light sub-shielding layer 41 and the second light sub-shielding layer 42 are also located on the same side of the transparent substrate 1. So that the first image source emits light for forming an image onto the first scattering layer 2 to form a first image on one side of the transparent display device (i.e., the side corresponding to the first surface 11 of the transparent substrate 1); the second image source emits light forming an image onto the second scattering layer 3 through the transparent substrate 1, and forms a second image on the other side of the transparent display device (i.e., the side corresponding to the second surface 12 of the transparent substrate 1).
Preferably, the first scattering layer 2 is formed of scattering nanoparticles.
The first scattering layer 2 may be formed of scattering particles having different sizes, or nanoparticles having a scattering effect on light rays having different incident angles. The scattering nanoparticle layer may be a metal nanolayer, which may be 100nm to 0.5mm thick.
Preferably, the transparent display device of the present embodiment further includes: and a protective layer covering the first scattering layer 2, the second scattering layer 3, and the first light shielding layer 4.
Wherein, that is to say the protective layer plays the guard action to first scattering layer 2, second scattering layer 3 and first light shield layer 4 to guarantee transparent display device's performance and life.
Specifically, the transparent display device may be any product or component having a display function, such as a liquid crystal display panel, an Organic Light Emitting Diode (OLED) display panel, and the like.
The preparation method in a transparent display device of this embodiment is as follows:
s11, a solution containing nanoparticles is coated on the transparent substrate 1, and the solution is patterned by photolithography, printing, transfer printing, or the like to form the first scattering layer 2. The nanoparticles may be metal nanoparticles, which may be coated to a thickness of 100nm to 0.5 mm.
Wherein, different non-transparent subareas can be coated with uniform scattering particles corresponding to red, green and blue wavelengths, or coated with particles corresponding to a certain wavelength; different non-transparent subareas can be coated with particles with different angle selectivity, so that the transparent display device can realize better display effect.
S12, forming a light-shielding material layer on the first scattering layer 2, and patterning the light-shielding material layer to form a first light-shielding layer 4. The thickness of the first light-shielding layer 4 may be 100nm to 5 mm.
S13, the second scattering layer 2 is formed on the first light-shielding layer 4, and the specific forming steps refer to steps S11 and S12.
And S14, forming a protective layer covering the first scattering layer 2, the second scattering layer 3 and the first shading layer 4.
The design concept of the transparent display device of the present embodiment can be applied to a transparent display device with single-sided display, as shown in fig. 11 and 12.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
While embodiments in accordance with the invention have been described above, these embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments described. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention and various embodiments with various modifications as are suited to the particular use contemplated. The invention is limited only by the claims and their full scope and equivalents.

Claims (10)

1. A transparent display device having a light-transmitting region and a non-light-transmitting region, comprising:
a transparent substrate;
the first scattering layer is arranged in at least part of the non-light-transmitting area of the transparent substrate;
the second scattering layer is arranged in at least part of the non-light-transmitting area of the transparent substrate;
the first shading layer is arranged in a non-light-transmitting area of the transparent substrate, and the first scattering layer and the second scattering layer are positioned on different sides of the first shading layer;
in a direction parallel to the transparent substrate, the size of the first light shielding layer is larger than the size of the first scattering layer and the size of the second scattering layer.
2. The transparent display device according to claim 1, wherein the transparent substrate has first and second opposing surfaces, the first and second scattering layers each being stacked in a non-transmissive region of the first surface of the transparent substrate, the first light-shielding layer being located between the first and second scattering layers.
3. The transparent display device according to claim 1, wherein the transparent substrate has a first surface and a second surface opposite to each other, the first scattering layer is disposed in the opaque region of the first surface of the transparent substrate, the second scattering layer is disposed in the opaque region of the second surface of the transparent substrate, and the first light shielding layer is located between the first scattering layer and the transparent substrate.
4. The transparent display device according to claim 3, further comprising: and the second shading layer is arranged in the non-light-transmitting area of the transparent substrate and is positioned between the second scattering layer and the transparent substrate.
5. The transparent display device according to claim 1, wherein the light-transmitting region comprises a plurality of light-transmitting sub-regions, the non-light-transmitting region comprises a plurality of non-light-transmitting sub-regions, the light-transmitting sub-regions and the non-light-transmitting sub-regions are alternately arranged, and any one of the non-light-transmitting sub-regions is different from the scattering layer in the non-light-transmitting sub-region adjacent to the non-light-transmitting sub-region.
6. The transparent display device according to claim 5, wherein the transparent substrate has a first surface and a second surface opposite to each other, the first scattering layer is disposed on the first surface of the transparent substrate, the second scattering layer is disposed on the second surface of the transparent substrate, and the first light shielding layer is located in the non-light-transmitting region of the first surface of the transparent substrate.
7. The transparent display device of claim 5, wherein the transparent substrate has first and second opposing surfaces, the first scattering layer is disposed on the first surface of the transparent substrate, the second scattering layer is disposed on the second surface of the transparent substrate,
the first shading layer is divided into a first sub shading layer and a second sub shading layer, the first sub shading layer is arranged between the first scattering layer and the transparent substrate, and the second sub shading layer is arranged between the second scattering layer and the transparent substrate.
8. The transparent display device of claim 5, wherein the transparent substrate has opposing first and second surfaces, the first and second scattering layers each being located on the first surface of the transparent substrate,
the first shading layer is divided into a first sub shading layer and a second sub shading layer, the first sub shading layer is arranged on the surface, far away from the transparent substrate, of the first scattering layer, and the second sub shading layer is arranged between the second scattering layer and the transparent substrate.
9. The transparent display device according to claim 1, wherein the first scattering layer is formed of scattering nanoparticles.
10. The transparent display device according to claim 1, further comprising: and the protective layer covers the first scattering layer, the second scattering layer and the first shading layer.
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