CN112859405A - Transparent display module and transparent display device - Google Patents
Transparent display module and transparent display device Download PDFInfo
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- CN112859405A CN112859405A CN202110062035.8A CN202110062035A CN112859405A CN 112859405 A CN112859405 A CN 112859405A CN 202110062035 A CN202110062035 A CN 202110062035A CN 112859405 A CN112859405 A CN 112859405A
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- G—PHYSICS
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- 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
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- 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
- G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
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- 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
- G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
- G02F1/13318—Circuits comprising a photodetector
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- 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
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Abstract
The invention provides a transparent display module, comprising: a transparent display panel having a display surface; the light adjusting structure is arranged on one side, away from the display surface, of the transparent display panel; a control module configured to: and adjusting the light transmittance of the light adjusting structure at least according to the gray scale of the display picture of the transparent display panel. The invention also provides a transparent display device. The invention can reduce the interference of external environment light to the transparent display module, thereby improving the display effect.
Description
Technical Field
The invention relates to the technical field of display, in particular to a transparent display module and a transparent display device.
Background
The transparent display screen has high permeability, is green and energy-saving, and has great application prospect in building glass curtain walls, show windows, and vehicle windows of traffic facilities such as automobiles, subways and the like.
However, since the transparent display screen is in a transparent state during displaying (i.e. a user can see a scene behind the display screen through the display screen), the intensity and complexity of ambient light around the transparent display screen greatly interfere with the display of the transparent display screen, and it is sometimes difficult for human eyes to distinguish display contents, thereby resulting in a poor display effect of the transparent display screen under complex ambient light.
Disclosure of Invention
The invention aims to at least solve one technical problem in the prior art, and provides a transparent display module and a transparent display device.
In order to achieve the above object, the present invention provides a transparent display module, which includes:
a transparent display panel having a display surface;
the light adjusting structure is arranged on one side, away from the display surface, of the transparent display panel;
a control module configured to: and adjusting the light transmittance of the light adjusting structure at least according to the gray scale of the display picture of the transparent display panel.
Optionally, the control module is further configured to: and adjusting the light transmittance of the dimming structure according to the intensity of the ambient light of the environment where the transparent display module is located and the gray scale of the display picture of the transparent display panel.
Optionally, the transparent display panel includes a plurality of display units, and the dimming structure includes a plurality of dimming portions, each of which corresponds to one of the display units;
the control module is specifically configured to: and adjusting the light transmittance of the light adjusting part corresponding to each display unit at least according to the gray scale of the display unit.
Optionally, each of the display units includes a plurality of sub-pixels, and the control module is specifically configured to: and adjusting the light transmittance of the light adjusting part corresponding to each display unit according to the average gray scale of all the sub-pixels in each display unit.
Optionally, each display unit is divided into a display area and a light-transmitting area located outside the display area;
the orthographic projection of each light-transmitting area on the light adjusting structure is positioned in the range of the light adjusting part corresponding to the light-transmitting area.
Optionally, the display area is provided with: the light-emitting device comprises a pixel circuit layer and a light-emitting device arranged on one side of the pixel circuit layer, which is far away from the dimming structure, wherein the pixel circuit layer is configured to provide a driving current for the light-emitting device so as to enable the light-emitting device to emit light;
the pixel circuit layer is connected with the light-emitting device through a first electrode, and the first electrode is a non-light-transmitting electrode.
Optionally, the minimum transmittance of the dimming structure is 0% to 10%.
Optionally, the dimming structure comprises:
a substrate;
the liquid crystal layer is arranged on one side, facing the transparent display panel, of the substrate;
a driving electrode layer disposed on at least one side of the liquid crystal layer, the driving electrode layer configured to supply an electric field to the liquid crystal layer in response to control of a driving signal to deflect liquid crystals in the liquid crystal layer.
Optionally, the driving electrode layer includes a first electrode layer and a second electrode layer, and the first electrode layer and the second electrode layer are respectively disposed on two opposite sides of the liquid crystal layer.
The present invention also provides a transparent display device, comprising: the transparent display module is provided.
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 structural diagram of a transparent display module according to an embodiment of the present invention;
fig. 2a is a schematic view of a transparent display panel according to an embodiment of the present invention;
fig. 2b is a schematic diagram of a dimming structure according to an embodiment of the present invention;
FIG. 3 is a longitudinal view of a transparent display module according to an embodiment of the present invention;
FIGS. 4a and 4b are schematic views of a liquid crystal layer using polymer dispersed liquid crystal according to an embodiment of the present invention;
fig. 5a and 5b are schematic diagrams of a liquid crystal layer using dye liquid crystal according to an embodiment of the present invention.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
Unless otherwise defined, technical or scientific terms used in the embodiments of the present invention should have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Likewise, the word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
An embodiment of the present invention provides a transparent display module, and fig. 1 is a schematic structural diagram of the transparent display module provided in the embodiment of the present invention, and as shown in fig. 1, the transparent display module includes: a transparent display panel 1, a dimming structure 2 and a control module (not shown in the figure). The transparent display panel 1 may include a pixel circuit layer 11, a light-emitting functional layer 12, and an encapsulation layer 13, which will be described in detail later and will not be described herein again. The transparent display panel 1 has a display surface, and the dimming structure 2 is disposed on a side of the transparent display panel 1 away from the display surface. The control module is configured to: the light transmittance of the light adjusting structure 2 is adjusted at least according to the gray scale of the display frame of the transparent display panel 1.
Specifically, the display surface of the transparent display panel 1 refers to a surface of the transparent display panel 1 that faces a user and is used for display. In the embodiment of the present invention, the transparent display panel 1 can display according to the gamma voltage provided by the driving module, and therefore, the control module can determine the gray scale of the display image of the transparent display panel 1 according to the gamma voltage, so as to adjust the light transmittance of the light adjusting structure 2. The control module can enable the dimming structure 2 to keep a higher light transmittance when the gray scale of the display picture of the transparent display panel 1 is higher, and reduce the light transmittance of the dimming structure 2 when the gray scale of the display picture of the transparent display panel 1 is lower, so that the interference of ambient light on the display effect of the transparent display panel 1 is reduced. The specific manner of adjusting the light transmittance of the light modulating structure 2 by the control module according to the gray scale of the display frame of the transparent display panel 1 can be determined according to actual needs, and is not limited herein, for example, the light transmittance of the light modulating structure 2 can be adjusted by the control module according to the average gray scale of the display frame of the transparent display panel 1, the light transmittance of the light modulating structure 2 can also be adjusted according to the maximum gray scale of the display frame of the transparent display panel 1, or the gray scales of the display frame of the transparent display panel 1 can be sorted from high to low, and then the light transmittance of the light modulating structure 2 can be adjusted according to the average value of a part of higher gray scales (for example, 30%).
It should be noted that, in other embodiments, the transparent display panel 1 may also collect the display image of the transparent display panel 1 through the detection device, so as to obtain the gray scale of the display image of the transparent display panel 1, and further adjust the light transmittance of the light adjusting structure 2.
By adopting the transparent display module provided by the embodiment of the invention, the light adjusting structure 2 is arranged on the back surface of the transparent display panel, and the light transmittance of the light adjusting structure 2 can be adjusted according to the gray scale of the display picture of the transparent display panel 1, so that even if the transparent display module is in complicated ambient light, when the display picture of the transparent display panel 1 is difficult to distinguish by human eyes (for example, the gray scale of the display picture is low), the light transmittance of the light adjusting structure 2 can be reduced, thereby reducing the interference of the external ambient light and improving the display effect.
The following describes a specific structure of the transparent display module according to an embodiment of the invention in detail with reference to fig. 1 to 5 b.
In some embodiments, the control module is further configured to: the light transmittance of the light adjusting structure 2 is adjusted according to the intensity of the ambient light of the environment where the transparent display module is located and the gray scale of the display picture of the transparent display panel 1.
In the embodiment of the present invention, the control module may adjust the light transmittance of the light adjusting structure 2 according to the intensity of the ambient light and the gray scale of the display image of the transparent display panel 1, so that for the same display image, when the intensity of the ambient light is higher (the content of the display image is difficult to be distinguished by human eyes), the light transmittance of the light adjusting structure 2 may be reduced to reduce the interference of the ambient light; when the intensity of external environment light is lower (the content that the display frame was distinguished easily to the people's eye), can increase the luminousness of structure 2 of adjusting luminance to guarantee transparent display module assembly's transparent display effect, thereby improve transparent display module assembly's demonstration and people's eye's suitability, further promote display effect.
In some embodiments, the light-adjusting structure 2 can adjust the transmittance as a whole, that is, the transmittance at each position of the light-adjusting structure 2 is the same, so that the light-adjusting structure has a simpler structure, fewer wires, a simple manufacturing process, and is beneficial to reducing the cost.
In other embodiments, the light modulation structure 2 may further perform light transmittance adjustment in different regions, and the light transmittance of each region is adjusted according to the gray scale of the corresponding display unit, specifically, fig. 2a is a schematic diagram of the transparent display panel provided in the embodiment of the present invention, and fig. 2b is a schematic diagram of the light modulation structure provided in the embodiment of the present invention, and as shown in fig. 2a and fig. 2b, the transparent display panel 1 includes a plurality of display units P, the light modulation structure 2 includes a plurality of light modulation portions 21, and each light modulation portion 21 corresponds to one display unit P. The control module is specifically configured to: the light transmittance of the light-adjusting part 21 corresponding to each display unit P is adjusted at least according to the gray scale of the display unit P.
In the embodiment of the present invention, the plurality of display units P may be distributed in an array, the control module determines the light transmittance of one light modulation part 21 according to the gray scale of one display unit P, specifically, each display unit P may include a plurality of sub-pixels (for example, a red sub-pixel R, a green sub-pixel G, and a blue sub-pixel B), and the control module determines the light transmittance of the light modulation part 21 corresponding to the display unit P according to the average gray scale of all the sub-pixels in the one display unit P. Of course, as shown above, the control module may determine the light transmittance of the light modulation part 21 corresponding to one display unit P according to the highest gray scale of all the sub-pixels in the display unit P, or sort the gray scales of all the sub-pixels of one display unit P from high to low, and then adjust the light transmittance of the light modulation part 21 according to the average value of a higher part of the gray scales (for example, 30%).
Adopt foretell transparent display module assembly, can adjust the luminousness rather than the portion of adjusting luminance that corresponds to the content that every display element P shows to make the adjustment to the luminousness of light modulation structure 2 more become more meticulous, and then further promote display effect.
In some embodiments, each display unit P is divided into a display area a and a light-transmitting area T located outside the display area a. The orthographic projection of each light-transmitting area T on the light-modulating structure 2 is located within the range of its corresponding light-modulating portion 21.
In the embodiment of the present invention, the display area a is provided with: the light-emitting device comprises a pixel circuit layer 11 and a light-emitting function layer 12 arranged on one side of the pixel circuit layer 11, which is far away from the dimming structure 2, wherein a plurality of light-emitting devices are arranged in the light-emitting function layer 12, and the pixel circuit layer 11 is configured to provide driving current for the light-emitting devices so as to enable the light-emitting devices to emit light. The pixel circuit may include a thin film transistor and a signal line for supplying an electrical signal to the thin film transistor, the signal line may be made of a non-light-transmissive material, such as metal, and the signal line using metal has good conductivity and lower resistance compared to a transparent conductive material (such as ITO), so that electrical loss of the pixel circuit may be reduced, thereby reducing power consumption of the transparent display module.
In some embodiments, the pixel circuit layer 11 is connected to the light emitting device through a first electrode (not shown). The first electrode can be a non-light-transmitting electrode, and the material of the first electrode can be metal, so that the power consumption of the transparent display module can be further reduced.
In the embodiment of the present invention, the Light Emitting device may be an Organic Light-Emitting Diode (OLED), and the OLED may emit red Light, green Light, blue Light or white Light (i.e., each of the sub-pixels described above is formed by one Light Emitting device). The light emitting device includes an organic light emitting layer, a hole injection layer, a hole transport layer, an electron injection layer, an electron transport layer, and the like. In the embodiment of the invention, a second electrode is further disposed in the display region, one of the first electrode and the second electrode is a cathode, and the other is an anode. The second electrode may be a light-transmitting electrode, so that light emitted from the light emitting device may be emitted from the second electrode, thereby implementing display.
It should be noted that, in the above embodiments, the light emitting device is explained by using a top emission type structure, and in other embodiments, the light emitting device may also use a bottom emission type structure. When a bottom emission type structure is employed, the second electrode may be a non-light-transmitting electrode and the first electrode is a light-transmitting electrode.
In some embodiments, the minimum transmittance of the light-adjusting structure 2 is 0% to 10%. For example 0%. When the light adjusting structure 2 is adjusted to the lowest light transmittance, the light adjusting structure 2 is similar to light-tight, so that the influence of external environment light on the display effect of the transparent display panel 1 can be reduced to the maximum extent, and the display effect is greatly improved.
Fig. 3 is a longitudinal sectional view of a transparent display module according to an embodiment of the invention, as shown in fig. 3, in some embodiments, the dimming structure 2 includes: a substrate 21. A liquid crystal layer 22 disposed on the side of the substrate 21 facing the transparent display panel 1. And a driving electrode layer 23 disposed on at least one side of the liquid crystal layer 22, the driving electrode layer 23 being configured to supply an electric field to the liquid crystal layer 22 in response to control of a driving signal to deflect liquid crystals in the liquid crystal layer 22.
In the embodiment of the present invention, when the driving electrode layer 23 does not provide an electric field to the liquid crystal layer 22, the liquid crystal in the liquid crystal layer 22 can be in a random arrangement state, at this time, when the light passes through the liquid crystal layer 22, scattering occurs in the liquid crystal layer 22, at this time, the liquid crystal layer 22 is in a semi-transparent state or a non-transparent state, and the light modulation structure 2 has a smaller light transmittance. When the driving electrode layer 23 supplies an electric field to the liquid crystal layer 22, liquid crystals in the liquid crystal layer 22 are deflected, and the light transmittance of the liquid crystal layer 22 is changed accordingly. As the magnitude of the electric field provided by the driving electrode layer 23 gradually increases, the light transmittance of the liquid crystal layer 22 also gradually increases. When the electric field provided to the liquid crystal layer 22 is sufficiently large, the liquid crystals in the liquid crystal layer 22 may be regularly arranged, for example, the liquid crystals in the liquid crystal layer 22 are arranged along the horizontal direction of the liquid crystal layer 22, at this time, the light enters the liquid crystal layer 22 and is totally emitted, the liquid crystal layer 22 is in a transparent state, and the dimming structure 2 reaches its maximum light transmittance.
In some embodiments, the driving electrode layer 23 includes a first electrode layer 23a and a second electrode layer 23b, and the first electrode layer 23a and the second electrode layer 23b are respectively disposed on opposite sides of the liquid crystal layer 22.
As shown in fig. 3, the first electrode layer 23a is located on the side of the liquid crystal layer 22 close to the substrate 21, and the second electrode layer 23b is located on the side of the liquid crystal layer 22 away from the substrate 21. The first electrode layer 23a and the second electrode layer 23b may be made of a transparent conductive material, such as Indium Tin Oxide (ITO). The light-adjusting structure 2 further includes an encapsulation glue 25 disposed between the first electrode layer 23a and the second electrode layer 23b, and the encapsulation glue 25 is used for encapsulating the liquid crystal layer 22 so as to separate the liquid crystal layer from the outside.
In some embodiments, the liquid crystal layer 22 includes: polymer Dispersed Liquid Crystal (PDLC) material or dye Liquid Crystal.
Fig. 4a and 4b are schematic diagrams of a liquid crystal layer using polymer dispersed liquid crystal according to an embodiment of the present invention, where, as shown in fig. 4a, when an electric field is not applied to the liquid crystal layer 22, the optical axis of the liquid crystal is in a free orientation, and the refractive index of the liquid crystal is not matched with that of the matrix, so that light is scattered when passing through the liquid crystal layer 22, and the liquid crystal layer 22 is in a non-transmissive state or a semi-transmissive state. When an electric field is applied to the liquid crystal layer 22, as shown in fig. 4b, the optical axis of the liquid crystal is aligned in the direction of the electric field, and the refractive index of the liquid crystal matches the refractive index of the substrate, so that the light incident on the liquid crystal layer 22 can be transmitted completely, and the liquid crystal layer is in a transparent state.
Dye liquid crystals are prepared by incorporating a dichroic dye into a conventional nematic liquid crystal, the dye molecules being aligned with the liquid crystal molecules and being deflectable with the liquid crystal molecules. Therefore, when an electric field is applied to the liquid crystal layer 22 to deflect the liquid crystal molecules, the dye molecules are also deflected, thereby achieving adjustment of the light transmittance of the liquid crystal layer 22. Fig. 5a and 5b are schematic diagrams of a liquid crystal layer using dye liquid crystal according to an embodiment of the present invention, and as shown in fig. 5a, when an electric field is not applied to the liquid crystal layer 22, dye molecules are aligned with the liquid crystal molecules, a long axis direction of the dye molecules is parallel to a thickness direction of the liquid crystal layer 22, light incident into the liquid crystal layer 22 is completely transmitted, and the liquid crystal layer 22 is in a transparent state. As shown in fig. 5b, when an electric field is applied to the liquid crystal layer 22, the liquid crystal molecules are oriented in a spiral shape perpendicular to the thickness direction of the liquid crystal layer 22 by the electric field force, the dye molecules are also oriented in a spiral shape along with the liquid crystal molecules, the light incident into the liquid crystal layer 22 is absorbed by the dye molecules, and the liquid crystal layer 22 is in a non-transmissive state.
Both of the above materials can adjust the deflection angle of the liquid crystal in the liquid crystal layer 22 by adjusting the magnitude of the electric field provided to the liquid crystal layer 22, thereby adjusting the light transmittance of the liquid crystal layer 22.
In some embodiments, substrate 21 is a rigid substrate, which may be made of a rigid inorganic material. Such as glass. In the embodiment of the present invention, a first buffer layer 24a is further disposed between the substrate 21 and the first electrode layer 23a, a second buffer layer 24b is further disposed between the second electrode layer 23b and the transparent display panel 1, and the first and second buffer layers 24a and 24b may include an inorganic material such as silicon oxide (SiOx), silicon nitride (SiNx), and/or silicon oxynitride (SiON), and may be formed in multiple layers or a single layer. In some embodiments, the transparent display panel 1 further includes an encapsulation layer 13, and the encapsulation layer 13 is disposed on a side of the light emitting device away from the substrate 21. The encapsulation layer 13 covers the light emitting device to encapsulate the light emitting device, thereby preventing moisture and/or oxygen in the external environment from corroding the light emitting device.
In some embodiments, the encapsulation layer 1 includes a first inorganic encapsulation layer, a second inorganic encapsulation layer and an organic encapsulation layer, the second inorganic encapsulation layer is located on the side of the first inorganic encapsulation layer away from the substrate 21, and the organic encapsulation layer is located between the first inorganic encapsulation layer and the second inorganic encapsulation layer. The first inorganic packaging layer and the second inorganic packaging layer can be made of inorganic materials with high compactness, such as silicon oxynitride (SiON), silicon oxide (SiOx), silicon nitride (SiNx) and the like. The organic packaging layer can be made of a high polymer material containing a drying agent or a high polymer material capable of blocking water vapor. For example, the polymer resin may be used to relieve stress of the first inorganic encapsulating layer and the second inorganic encapsulating layer, and may further include a water-absorbing material such as a desiccant to absorb water, oxygen, or the like that has intruded into the inside.
In other embodiments, substrate 21 may be a flexible substrate, which may be made of a flexible organic material. For example, the organic material is a resin material such as polyimide, polycarbonate, polyacrylate, polyetherimide, polyethersulfone, polyethylene terephthalate, or polyethylene naphthalate. The transparent display module with the flexible substrate can realize non-planar display and is suitable for being used in vehicle-mounted, wearable and other scenes.
The present invention also provides a transparent display device, comprising: the transparent display module is provided.
By adopting the transparent display device provided by the embodiment of the invention, the light adjusting structure is arranged on the back surface of the transparent display panel, and the light adjusting structure can adjust the period transmittance, so that when the display brightness of the display panel is lower, the transmittance of the light adjusting structure can be reduced, the interference of external environment light is reduced, a user can observe the display picture of the display panel, and the display effect is improved.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (10)
1. The utility model provides a transparent display module assembly which characterized in that includes:
a transparent display panel having a display surface;
the light adjusting structure is arranged on one side, away from the display surface, of the transparent display panel;
a control module configured to: and adjusting the light transmittance of the light adjusting structure at least according to the gray scale of the display picture of the transparent display panel.
2. The transparent display module of claim 1, wherein the control module is further configured to: and adjusting the light transmittance of the dimming structure according to the intensity of the ambient light of the environment where the transparent display module is located and the gray scale of the display picture of the transparent display panel.
3. The transparent display module according to claim 1, wherein the transparent display panel comprises a plurality of display units, the dimming structure comprises a plurality of dimming portions, and each dimming portion corresponds to one display unit;
the control module is specifically configured to: and adjusting the light transmittance of the light adjusting part corresponding to each display unit at least according to the gray scale of the display unit.
4. The transparent display module of claim 3, wherein each of the display units comprises a plurality of sub-pixels, and the control module is specifically configured to: and adjusting the light transmittance of the light adjusting part corresponding to each display unit according to the average gray scale of all the sub-pixels in each display unit.
5. The transparent display module of claim 3, wherein each display unit is divided into a display area and a transparent area outside the display area;
the orthographic projection of each light-transmitting area on the light adjusting structure is positioned in the range of the light adjusting part corresponding to the light-transmitting area.
6. The transparent display module of claim 5, wherein the display area has disposed therein: the light-emitting device comprises a pixel circuit layer and a light-emitting device arranged on one side of the pixel circuit layer, which is far away from the dimming structure, wherein the pixel circuit layer is configured to provide a driving current for the light-emitting device so as to enable the light-emitting device to emit light;
the pixel circuit layer is connected with the light-emitting device through a first electrode, and the first electrode is a non-light-transmitting electrode.
7. The transparent display module according to any one of claims 1 to 6, wherein the minimum transmittance of the light-adjusting structure is 0% to 10%.
8. The transparent display module according to any one of claims 1 to 6, wherein the dimming structure comprises:
a substrate;
the liquid crystal layer is arranged on one side, facing the transparent display panel, of the substrate;
a driving electrode layer disposed on at least one side of the liquid crystal layer, the driving electrode layer configured to supply an electric field to the liquid crystal layer in response to control of a driving signal to deflect liquid crystals in the liquid crystal layer.
9. The transparent display module of claim 8, wherein the driving electrode layer comprises a first electrode layer and a second electrode layer, and the first electrode layer and the second electrode layer are respectively disposed on two opposite sides of the liquid crystal layer.
10. A transparent display device, comprising: the transparent display module according to any one of claims 1 to 9.
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