Transparent display screen, vehicle-mounted transparent display vehicle window and preparation method thereof

Abstract

The invention provides a transparent display screen, a vehicle-mounted transparent display vehicle window and a preparation method of the vehicle-mounted transparent display vehicle window. The transparent display screen comprises a transparent display area, a transparent frame area and a transparent dummy area. The transparent frame area at least partially surrounds the transparent display area and is close to the transparent display area. The transparent dummy area is located on one side of the transparent frame area away from the transparent display area. In the transparent display screen, no alignment boundary exists between the vehicle window glass and the transparent display screen, and the problem that the display effect is affected is solved.

Description

Technical Field

[0001] The present disclosure relates to the field of transparent display technology, and in particular, to a transparent display screen, a vehicle-mounted transparent display window, and a preparation method thereof. Background Art

[0002] Organic Light-Emitting Diode (OLED) display screens, as information display carriers and windows for human-computer interaction in the digital age, are becoming an important port for people to receive visual information, and are constantly affecting people's lives and economic and social development. It is worth mentioning that with the advancement of technology and the continuous improvement of people's demand for information interaction, commercial displays are being integrated into life at an unprecedented speed. For example, various forms of commercial display screens are integrated with the environment and the application of functions such as VR, AR, and holographic projection.

[0003] In recent years, the emergence of transparent OLED displays is undoubtedly a representative member of commercial displays. Transparent OLED displays have unique advantages. With the characteristics of self-luminous OLED, they can present high transparency and excellent image quality, and can achieve thin and light design and unlimited extension, providing new value for consumers.

[0004] However, in some applications, there is a problem that the visual effect is affected due to the alignment deviation between the transparent display screen and other media such as glass. Summary of the invention

[0005] The present disclosure provides a transparent display screen, a vehicle-mounted transparent display window and a method for preparing the same. The design of the transparent dummy area can eliminate the overlapping boundaries between the transparent display screen and products of different sizes, such as vehicle window glass, thereby improving the adverse effects of the overlapping boundaries on the visual effect.

[0006] The first aspect of the present disclosure provides a transparent display screen. The transparent display screen includes a transparent display area, a transparent frame area and a transparent dummy area. The transparent frame area is at least partially arranged around the transparent display area and is close to the transparent display area. The transparent dummy area is located on a side of the transparent frame area away from the transparent display area.

[0007] In the above scheme, by setting a transparent dummy area that can be cut, the transparent display screen can meet the needs of products of different sizes, such as vehicle-mounted transparent display windows, and the transparent dummy area is cut according to demand, so there will be no alignment deviation between it and the window glass, thereby improving the problem of visual effects affected by overlapping boundaries.

[0008] In a specific embodiment of the first aspect of the present disclosure, the transmittances of the transparent display area, the transparent frame area and the transparent dummy area are the same; or, the transmittance of the transparent display area is greater than the transmittance of the transparent frame area, and the transmittance of the transparent display screen gradually decreases in the direction from the junction of the transparent display area and the transparent frame area to the transparent dummy area.

[0009] In the above solution, the transparent display area, transparent frame area and transparent dummy area are designed to have consistent or gradual light transmission, so that when the transparent display screen is turned off, there will be no image differences in different areas, thereby improving the user experience.

[0010] In a specific embodiment of the first aspect of the present disclosure, a first driving circuit layer, a first light emitting device layer and a functional wiring are included, wherein the first driving circuit layer and the first light emitting device layer are located in a transparent display area, and the functional wiring is located in a transparent frame area, and the functional wiring has the same pattern density as the first driving circuit layer.

[0011] In the above solution, the design scheme that the functional wiring pattern of the transparent frame area is the same as the pattern density of the first driving circuit layer of the transparent display area can easily adjust the transmittance of the above two areas and save production costs.

[0012] In a specific embodiment of the first aspect of the present disclosure, the transparent display screen includes a first driving circuit layer, a first light-emitting device layer, and a second driving circuit layer, wherein the first driving circuit layer and the first light-emitting device layer are located in the transparent display area, and the second driving circuit layer is located in the transparent dummy area. The first driving circuit layer and the second driving circuit layer are in the same layer and made of the same material. For example, further, the transparent display screen also includes a second light-emitting device layer located in the transparent dummy area, and the second light-emitting device layer and the first light-emitting device layer are in the same layer and made of the same material.

[0013] In the above solution, corresponding film layers of the same layer and the same material are provided in the transparent display area and the transparent dummy area to adjust the transmittance of the two areas, which is easy to implement and saves production costs.

[0014] In a specific implementation of the first aspect of the present disclosure, the transparent display screen further includes an opaque frame area located outside the transparent frame area, the opaque frame area includes a driving chip, and the driving chip is electrically connected to the transparent frame area.

[0015] In a specific embodiment of the first aspect of the present disclosure, the transparent display area is connected to the opaque frame area, the transparent frame area and the transparent dummy area are partially arranged around the transparent display area, and the transparent frame area is located between the transparent dummy area and the transparent display area.

[0016] In the above solution, the design of the transparent display screen is suitable for relatively small-sized products, and can maximize the size of the display area in the product and improve the user experience.

[0017] In a specific embodiment of the first aspect of the present disclosure, the distance from the first bottom edge of the transparent display area close to the opaque border area to the opaque border area is a preset distance, the transparent virtual area is arranged around the transparent display area to form a closed figure, the transparent border area is arranged around the transparent display area, and an opening is formed at a position corresponding to the first bottom edge; or the transparent border area is arranged around the transparent display area to form a closed figure.

[0018] In the above solution, the design of the transparent display screen is suitable for products of relatively large size. The position of the transparent display area relative to the opaque frame is adjusted to make it easier for users to watch and improve the user experience.

[0019] In a specific embodiment of the first aspect of the present disclosure, the transparent display screen further includes a transmittance adjustment structure, and the transmittance adjustment structure is located on one side of the transparent display screen. For example, further, the transmittance adjustment structure includes a first transparent electrode, an electrochromic layer, and a second transparent electrode, and the electrochromic layer is located between the first transparent electrode and the second transparent electrode. For example, further, the first transparent electrode includes a plurality of electrode units arranged in an array.

[0020] In the above scheme, by adjusting the transmittance of the transmittance regulating structure itself, the transparent display screen having the transmittance regulating structure can adjust the overall transmittance according to the different scene requirements of the user, thereby improving user satisfaction.

[0021] A second aspect of the present disclosure provides a vehicle-mounted transparent display window, which includes a first glass, a second glass, and a transparent display screen located between the first glass and the second glass, and the transparent display screen is the transparent display screen of the first aspect mentioned above.

[0022] In the above solution, in the vehicle-mounted transparent display window, at least part of the transparent dummy area fills the space between the transparent display screen and the window glass, so that there is no alignment deviation between the two.

[0023] The third aspect of the present disclosure provides a method for preparing a vehicle-mounted transparent display window, the method comprising obtaining a first glass and a second glass. Obtaining the transparent display screen of the first aspect, the transparent display screen comprising a transparent display area, a transparent frame area, and a transparent virtual area. Placing the transparent display screen between the first glass and the second glass. Cutting at least one of the first glass, the second glass, and the transparent virtual area so that the orthographic projection of the transparent display screen on the first glass overlaps with the first glass, and overlaps with the orthographic projection of the second glass on the first glass. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the planar structure of a transparent display screen provided in one embodiment of the present disclosure.

[0025] Figure 2 for Figure 1 The shown diagram is a schematic cross-sectional view of a display screen along M1-N1 in one design.

[0026] Figure 3 for Figure 1 The shown diagram is a schematic cross-sectional view of a display screen along M1 - N1 in another design.

[0027] Figure 4 for Figure 1 The shown diagram is a schematic cross-sectional view of a display screen along M1 - N1 in another design.

[0028] Figure 5 for Figure 1 The shown diagram is a schematic cross-sectional view of a display screen along M1 - N1 in another design.

[0029] Figure 6 A schematic diagram of a planar structure of a transparent display screen in a certain design is provided in one embodiment of the present disclosure.

[0030] Figure 7 A schematic diagram of the planar structure of a transparent display screen provided in another design according to an embodiment of the present disclosure.

[0031] Figure 8 A schematic diagram of the planar structure of a transparent display screen provided in another design according to an embodiment of the present disclosure.

[0032] Fig. 9 A schematic diagram of the planar structure of a transparent display screen provided in another design according to an embodiment of the present disclosure.

[0033] Fig.10 for Figure 1 The shown diagram is a schematic cross-sectional view of a display screen along M1 - N1 in another design.

[0034] Fig.11 for Figure 1 The shown diagram is a schematic cross-sectional view of a display screen along M1 - N1 in another design.

[0035] Fig.12 A longitudinal cross-sectional view of a vehicle-mounted transparent display window provided in accordance with an embodiment of the present disclosure.

[0036] Fig.13 A schematic flow chart of a method for preparing a vehicle-mounted transparent display window provided in accordance with an embodiment of the present disclosure. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0038] Transparent OLED displays have many application scenarios, for example, in the automotive field, take side windows as an example. Specifically, the transparent OLED display is applied to the side windows of the vehicle, so that the side windows have both transparent and display functions. However, when the transparent OLED display is aligned with the window glass, there will be an alignment deviation problem. This alignment deviation causes the transparent OLED display to have an overlapping boundary with the window glass, resulting in some optical phenomena such as total reflection, thus affecting the visual effect.

[0039] In view of this, the embodiments of the present disclosure provide a transparent display screen, a vehicle-mounted transparent display window and a method for preparing the same, and improve the problem of visual effects being affected by the overlapping boundary between the window glass and the transparent display screen by designing the structure of the transparent display screen.

[0040] The disclosed embodiment provides a transparent display screen. The transparent display screen includes a transparent display area, a transparent frame area, and a transparent dummy area. The transparent frame area is at least partially arranged around the transparent display area and is close to the transparent display area. The transparent dummy area is on the side of the transparent frame area away from the transparent display area. In this way, the transparent dummy area that does not play a display role can be used to eliminate the alignment deviation between the transparent display screen and the vehicle window glass, thereby eliminating the overlapping boundary. Specifically, the transparent dummy area can be cut according to the size requirements of the transparent display screen, so that the transparent display screen meets the requirements of vehicle-mounted transparent display windows of different sizes, thereby improving the problem that the overlapping boundary between the transparent display screen and the vehicle window glass in the vehicle-mounted transparent display window has an adverse effect on the display effect.

[0041] In the following, the transparent display screen, the vehicle-mounted transparent display window and the manufacturing method thereof according to at least one embodiment of the present disclosure are described in conjunction with the accompanying drawings. In addition, as shown in the accompanying drawings, in at least one embodiment of the present disclosure, a spatial rectangular coordinate system is established with the surface where the transparent display screen is located as a reference to define the positions of the various film layers in the transparent display screen. In the spatial rectangular coordinate system, the X-axis and the Y-axis are parallel to the surface where the transparent display screen is located, and the Z-axis is perpendicular to the surface where the transparent display screen is located.

[0042] In at least one embodiment of the present disclosure, Figure 1 and Figure 2As shown, in a direction perpendicular to the transparent display screen 10, the transparent display screen 10 includes a substrate 101, a driving circuit layer 102 arranged on one side of the substrate 101, a light-emitting device layer 103 located on a side of the driving circuit layer 102 away from the substrate 101, and an encapsulation layer 104 located on a side of the light-emitting device layer 103 away from the substrate 101.

[0043] On a plane parallel to the transparent display screen 10, the transparent display screen 10 is divided into a transparent display area 100, a transparent frame area 200 and a transparent dummy area 300 based on different functions. The transparent display area 100 has a display function. The transparent frame area 200 is arranged around the transparent display area 100, and is close to the transparent display area 100 and connected to the transparent display area 100. The transparent frame area 200 includes functional circuits in a conventional frame, such as a driving circuit, an electrostatic circuit, a signal routing, etc. The transparent dummy area 300 is located on a side of the transparent frame area 200 away from the transparent display area 100. The transparent dummy area 300 does not have any display function and can be cut according to actual needs. Fig.12 It can be seen that the transparent display screen 10 and the vehicle window glass 20 are finally filled up so that there is no alignment deviation between the two, and the problem of affecting the display effect due to the overlapping boundary between the transparent display screen 10 and the vehicle window glass 20 will not occur.

[0044] It should be noted that the structure of the transparent display screen 10 is not limited to the examples in the above embodiments and figures. For example, the substrate 101 may be a flexible substrate 101, or may be a rigid substrate 101. For example, the driving circuit layer 102 generally includes a plurality of thin film transistors TFT and capacitors. The thin film transistors TFT and capacitors form a driving circuit, which may be a 3T1C (where "T" represents TFT and "C" represents capacitor), 4T1C, 5T1C, 5T2C, 6T1C, 7T1C or 8T1C structure. Taking the driving circuit of the 7T1C structure as an example, the driving circuit includes seven thin film transistors TFT and a capacitor, and the driving circuit is respectively connected to a plurality of signal lines such as a data signal line D, a first scanning signal line S1, a second scanning signal line S2, a light emitting signal line E, a first initial signal line INIT1, a second initial signal line INIT2, a first power line VDD and a second power line VSS. For example, the light emitting device layer 103 includes a plurality of light emitting units, each of which may include an anode, a cathode and a light emitting functional layer located between the anode and the cathode in the opening 220 of the pixel defining layer. The anode is connected to the driving circuit, the light-emitting functional layer is connected to the anode, and the cathode is connected to the light-emitting functional layer. The light-emitting functional layer emits light of corresponding color under the drive of the anode and the cathode. The light-emitting functional layer may include a light-emitting layer (Emitting Layer, EML) and any one or more of the following layers: a hole injection layer (Hole Inject Layer, HIL), a hole transport layer (Hole Transport Layer, HTL), an electron blocking layer (Electron Blocking Layer, EBL), an electron injection layer (Electron Inject Layer, EIL), an electron transport layer (Electron Transport Layer, ETL), and a hole blocking layer (Hole Blocking Layer, HBL). For another example, the encapsulation layer 104 may adopt a thin film encapsulation process to form a stacked film layer of an inorganic film layer / organic film layer / inorganic film layer to reduce the risk that external water vapor cannot enter the light-emitting device layer 103. The above can be designed according to actual needs and will not be repeated here.

[0045] Based on the transparent display screen 10 provided in the above embodiment, in addition to considering improving the display effect by eliminating the alignment deviation between the transparent display screen 10 and the vehicle window glass 20, the embodiment of the present disclosure also limits the transparent display screen 10 from the perspective of improving the visual effect of the transparent display screen 10 itself.

[0046] For example, in a transparent display screen 10 according to an embodiment of the present disclosure, the transparent display area 100, the transparent frame area 200, and the transparent dummy area 300 have the same transmittance. Figure 1As shown, the transmittance of the transparent display area 100 is 40%, the transmittance of the transparent frame area 200 is 40%, and the transmittance of the transparent dummy area 300 is 40%. The transmittances of the three different areas are the same. In this way, when the transparent display screen 10 is in the off state, that is, when the transparent display area 100 is not displayed, the amount of light transmitted by the transparent display area 100, the transparent frame area 200 and the transparent dummy area 300 is consistent, so that when the user watches the scene on the other side of the transparent display screen 10 from one side of the transparent display screen 10, there is no picture difference between the transparent display area 100, the transparent frame area 200 and the transparent dummy area 300, that is, the user will not distinguish the boundaries of the three areas, thereby greatly improving the user's visual experience, and the size of the transparent frame area 200 can be designed to be larger without affecting the display effect, which is convenient for the wiring of the driving circuit of the transparent display screen 10 and improves the quality of the transparent display screen 10.

[0047] For another example, in the transparent display screen 10 of another embodiment of the present disclosure, the transmittance of the transparent display area 100 is greater than the transmittance of the transparent frame area 200, and the transmittance of the transparent display screen 10 gradually decreases in the direction from the junction of the transparent display area 100 and the transparent frame area 200 to the transparent dummy area 300. For example, Figure 1 As shown, the transmittance of the transparent display area 100 is 40%, which is greater than the transmittance of the transparent frame area 200, and the transmittance of the transparent frame area 200 to the transparent dummy area 300 changes gradually from the junction of the transparent frame area 200 as the starting point. Specifically, starting from the junction of the transparent frame area 200, the transmittance of the transparent frame area 200 to the transparent dummy area 300 gradually increases, for example, the transmittance changes gradually from 40% to 45%, or starting from the junction of the transparent frame area 200, the transmittance of the transparent frame area 200 to the transparent dummy area 300 gradually decreases, for example, the transmittance changes gradually from 40% to 35%. This gradual change in transmittance will not be noticed by the user's eyes, and thus will not affect the visual effect.

[0048] It should be noted that the transmittance of the transparent display screen 10 is not limited to the value of 40% listed in the above embodiment, and it can be any value between 0% and 60%, such as 30%, 35%, 45%, 50%, 55%, 60%, etc. The gradual change of the transmittance is not limited to the numerical change in the above example, as long as the gradual change mode cannot be recognized by the user's eyes and does not appear unevenly displayed on the transparent display screen 10. All of the above can be designed according to actual needs and will not be elaborated here.

[0049] The above embodiment proposes a method for improving the display effect of the transparent display screen 10. Based on this method, a design scheme for achieving the same or gradual transmittance in different areas of the transparent display screen 10 is introduced below. The specific contents are as follows.

[0050] In the transparent display screen 10 provided in at least one embodiment of the present disclosure, as Figure 3 As shown, the transparent display screen 10 includes a first driving circuit layer 110 and a first light emitting device layer 120 located in the transparent display area 100, and a functional wiring 210 located in the transparent frame area 200, and the functional wiring 210 has the same pattern density as the first driving circuit layer 110. The driving circuit layer 102 and the light emitting device layer 103 are divided into a first driving circuit layer 110 and a first light emitting device layer 120 corresponding to the transparent display area 100. A plurality of driving circuits in the driving circuit layer 102 are correspondingly provided with a plurality of thin film transistors TFT, and the thin film transistor TFT is generally composed of a gate, a source, a drain, an active layer and an insulating layer therebetween. The metal wiring in the same layer as at least one of the gate, the source and the drain of the thin film transistor TFT includes a first metal wiring arranged in the transparent display area 100, between a plurality of light emitting units in the first light emitting device layer 120, and a second metal wiring (i.e., the functional wiring 210) arranged in the transparent frame area 200. The first metal routing usually includes data lines and scan lines, and the second metal routing, i.e., the functional routing 210, includes but is not limited to the routing in the gate drive circuit and other necessary signal transmission routing. The graphic density of the second metal routing, i.e., the functional routing 210, is the same as the graphic density of the first metal routing, i.e., the functional routing 210 is the same as the graphic density of the first drive circuit layer 110. The first metal routing and the second metal routing are located in multiple metal layers. In this way, by setting the graphic density and related dimensions of the first drive circuit layer 110 and the functional routing 210, the same transmittance can be achieved in the transparent display area 100 and the transparent frame area 200, or the transmittance can be gradually changed in the direction from the junction of the two to the transparent frame area 200.

[0051] In the transparent display screen 10 provided in at least one embodiment of the present disclosure, as Figure 4As shown, the transparent display screen 10 includes a first drive circuit layer 110 and a first light emitting device layer 120 located in the transparent display area 100 and a second drive circuit layer 310 located in the transparent dummy area 300. The first drive circuit layer 110 and the second drive circuit layer 310 are in the same layer and made of the same material. In the process of manufacturing the transparent display screen 10, the first drive circuit layer 110 and the second drive circuit layer 310 are formed in the transparent display area 100 and the transparent dummy area 300 at the same time, and the two are made of the same material film layer using the same process. Specifically, in addition to the first metal wiring configured in the transparent display area 100 and the second metal wiring configured in the transparent frame area 200, the drive circuit layer 102 also includes a third metal wiring configured in the transparent dummy area 300, and the pattern density of the first metal wiring, the second metal wiring and the third metal wiring is the same. The first light-emitting device layer 120 can be considered as the portion of the light-emitting device layer 103 located in the transparent display area 100. The design of the first light-emitting device layer 120 can refer to the introduction of the light-emitting device layer 103 in the above embodiment. In addition, the second driving circuit layer 310 has no signal transmission, and the specific structure of the first driving circuit layer 110 and the second driving circuit layer 310 can also refer to the introduction of the driving circuit in the above embodiment, which will not be repeated here.

[0052] In the transparent display screen 10 provided in at least one embodiment of the present disclosure, as Figure 5 As shown, the transparent display screen 10 includes a first driving circuit layer 110, a first light emitting device layer 120, a second driving circuit layer 310, and a second light emitting device layer 320. The first driving circuit layer 110 and the first light emitting device layer 120 are respectively the parts of the driving circuit layer 102 and the light emitting device layer 103 located in the transparent display area 100. The second driving circuit layer 310 and the second light emitting device layer 320 are respectively the parts of the driving circuit layer 102 and the light emitting device layer 103 located in the transparent dummy area 300. That is to say, the first driving circuit layer 110 and the second driving circuit layer 310 are in the same layer and made of the same material, and the first light emitting device layer 120 and the second light emitting device layer 320 are in the same layer and made of the same material. The second driving circuit layer 310 has no signal transmission, and the first metal wiring arranged in the transparent display area 100, the second metal wiring arranged in the transparent frame area 200, and the third metal wiring arranged in the transparent frame area 200 have the same pattern density, and the pixel arrangement of the first light emitting device layer 120 and the second light emitting device layer 320 is the same.

[0053] It should be noted that this proposal does not limit the specific pixel arrangement in the light-emitting device layer 103 of the transparent display screen 10. The required pixel arrangement is obtained based on the arrangement design of the light-emitting units emitting red, green and blue colors. The specific design can be based on actual needs and will not be elaborated here.

[0054] In the transparent display screen 10 provided in at least one embodiment of the present disclosure, as Figure 6 As shown, the transparent display screen 10 further includes an opaque frame area 400 located at the periphery of the transparent frame area 200 . The opaque frame area 400 includes a driving chip 410 . The driving chip 410 is electrically connected to the transparent frame area 200 .

[0055] It should be noted that the above embodiment does not limit the opaque border area 400 of the transparent display screen 10, and the opaque border area 400 can be designed according to actual needs. For example, a fan-out area can be set on the opaque border area 400, and the fan-out area includes a plurality of data fan-out lines, and the plurality of data fan-out lines are configured to connect the data signal lines of the transparent display area 100 in a fan-out (Fanout) routing mode. The driver chip 410 of the opaque border area 400, that is, an integrated circuit (IC), is configured to be connected to a plurality of data fan-out lines. The above can be designed according to actual needs, and will not be repeated here.

[0056] According to actual needs, the horizontal arrangement of the transparent display area 100 , the transparent frame area 200 and the transparent dummy area 300 in the transparent display screen 10 is designed, and the specific contents are as follows.

[0057] In a transparent display screen 10 provided in an embodiment of the present disclosure, as Figure 6 As shown, the transparent display area 100 is connected to the opaque frame area 400 , the transparent frame area 200 and the transparent dummy area 300 are partially arranged around the transparent display area 100 , and the transparent frame area 200 is located between the transparent dummy area 300 and the transparent display area 100 .

[0058] It should be noted that the above diagrams and embodiments are only examples of a transparent display screen 10. The transparent display screen 10 in this embodiment can also be set to other structures. For example, the length of the transparent display area 100 in the X direction can be equal to, greater than, or less than the length of the opaque frame area 400 in the X direction. For example, the shape of the transparent display area 100 is not limited to a rectangle, but can also be other shapes such as a circle or an ellipse. Similarly, the transparent frame area 200 and the transparent dummy area 300 can also be set to other shapes. All of the above can be designed according to actual needs and will not be described in detail here.

[0059] In another embodiment of the present disclosure, a transparent display screen 10 is provided. Figure 7 and Figure 8As shown, the distance from the first bottom edge of the transparent display area 100 close to the opaque frame area 400 to the opaque frame area 400 is a preset distance L1, and the transparent dummy area 300 is arranged around the transparent display area 100 to form a closed figure. The transparent frame area 200 located between the transparent display area 100 and the transparent dummy area 300 is arranged around the transparent display area 100, and an opening 220 is formed at a position corresponding to the first bottom edge. The size of the opening 220 can be designed according to actual needs, and will not be described in detail here.

[0060] In another embodiment of the present disclosure, a transparent display screen 10 is provided. Fig. 9 As shown, the distance from the first bottom edge of the transparent display area 100 close to the opaque frame area 400 to the opaque frame area 400 is a preset distance L1, and the transparent dummy area 300 is arranged around the transparent display area 100 to form a closed figure. The transparent frame area 200 located between the transparent display area 100 and the transparent dummy area 300 is arranged around the transparent display area 100 to form a closed figure.

[0061] The presently disclosed embodiment does not describe the preset distance L1. The specific size of the preset distance L1 can be designed according to actual product requirements, such as the size of the vehicle-mounted transparent display window and user requirements, and will not be elaborated here.

[0062] Based on the application of the transparent display screen 10 to the vehicle-mounted transparent display window, considering that it has different usage scenarios and may have different requirements for its transmittance, the present disclosure also provides a transparent display screen 10 with a transmittance adjustment structure, and its specific solution is as follows.

[0063] In a transparent display screen 10 provided in an embodiment of the present disclosure, as Fig.10 As shown, the transparent display screen 10 further includes a transmittance adjustment structure 500 located on one side of the transparent display screen 10. Specifically, the transmittance adjustment structure 500 is entirely disposed on one side of the transparent display screen 10, so that there is no overlapping boundary between the transmittance adjustment structure 500 and the transparent display screen 10, and the visual effect is not affected by the alignment deviation.

[0064] In the transparent display screen 10 provided in at least one embodiment of the present disclosure, the transmittance adjustment structure 500 includes a first transparent electrode 510, an electrochromic layer 520 and a second transparent electrode 530, and the electrochromic layer 520 is located between the first transparent electrode 510 and the second transparent electrode 530. The materials of the first transparent electrode 510 and the second transparent electrode 530 can be ITO, IZO, conductive silver wire, etc. The electrochromic layer 520 can be an inorganic electrochromic layer or an organic electrochromic layer, and the material of the electrochromic layer 520 can include Ir2O, NiO, WO3, polythiophene, viologen, etc., and can be formed on the first transparent electrode 510 by CVD, PVD, electrodeposition, etc.

[0065] In the embodiment of the present disclosure, the electrochromic layer 520 located between the first transparent electrode 510 and the second transparent electrode 530 is electrically controlled to adjust the color change degree of the transmittance adjusting structure 500, change the transmittance of the transmittance adjusting structure 500, and thus change the transmittance of the transparent display screen 10 provided with the transmittance adjusting structure to meet the needs of different scenes.

[0066] In at least one embodiment of the present disclosure, a transparent display screen 10 is provided, such as Fig.11 As shown, the first transparent electrode 510 includes a plurality of electrode units 511 arranged in an array. The first transparent electrode 510 may be an anode. By setting the first transparent electrode 510 to a pattern of a plurality of electrode units 511, the transmittance of different regions of the transmittance adjustment structure may be adjusted to achieve a more refined adjustment of the overall transmittance of the transparent display screen 10 having the transmittance adjustment structure to meet the needs of different scenarios. Specifically, the transmittance of all regions of the transparent display screen 10 corresponding to the transmittance adjustment structure may be changed simultaneously, so that the transmittance of the transparent display screen 10 changes simultaneously, or the transmittance of a partial region of the transparent display screen 10 corresponding to the transmittance adjustment structure, such as the second region and / or the third region, may be gradually changed, so that the transmittance of the region corresponding to the transparent display screen 10 may be gradually changed. In this way, multiple effects such as energy saving and contrast enhancement may be achieved.

[0067] In an embodiment of the present disclosure, a vehicle-mounted transparent display window is provided, such as Fig.12 As shown, the vehicle-mounted transparent display window includes a first glass 21, a second glass 22 and a transparent display screen 10 located between the first glass 21 and the second glass 22. The first glass 21 and the second glass 22 constitute the vehicle window glass 20 mentioned above, and the transparent display screen 10 is the transparent display screen 10 of the above embodiment, and the transparent display screen 10 includes a transparent display area 100, a transparent frame area 200 and a transparent dummy area 300.

[0068] In an embodiment of the present disclosure, a method for preparing a vehicle-mounted transparent display window is provided, such as Fig.13As shown, the preparation method comprises the following steps:

[0069] Step S01: Obtain a first glass and a second glass.

[0070] Step S02: Obtain a transparent display screen, which includes a transparent display area, a transparent frame area, and a transparent dummy area. The structure of the transparent display screen can refer to the relevant description in the above embodiment, and will not be described here.

[0071] Step S03: placing the transparent display screen between the first glass and the second glass.

[0072] Step S04: cutting at least one of the first glass, the second glass and the transparent dummy area so that the orthographic projection of the transparent display screen on the first glass overlaps with the first glass and overlaps with the orthographic projection of the second glass on the first glass.

[0073] It should be noted that, in the above preparation method, the specific structure of the obtained vehicle-mounted transparent display window and the transparent display screen used can be found in the relevant descriptions in the above embodiments, and will not be described in detail here.

[0074] The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure. Any modifications, equivalent substitutions, etc. made within the spirit and principles of the present disclosure should be included in the protection scope of the present disclosure.

Claims

1. A transparent display screen, characterized in that: include: Transparent display area; a transparent frame area, at least partially disposed around the transparent display area and close to the transparent display area; as well as The transparent dummy area is located at a side of the transparent frame area away from the transparent display area.

2. The transparent display screen according to claim 1, characterized in that: The transparent display area, the transparent frame area and the transparent dummy area have the same transmittance; or, The transmittance of the transparent display area is greater than the transmittance of the transparent frame area, and the transmittance of the transparent display screen gradually decreases in the direction from the boundary between the transparent display area and the transparent frame area to the transparent dummy area.

3. The transparent display screen according to claim 2, characterized in that: The transparent display screen comprises a first driving circuit layer, a first light emitting device layer and functional wiring, wherein the first driving circuit layer and the first light emitting device layer are located in the transparent display area, and the functional wiring is located in the transparent frame area; The functional wiring has the same pattern density as the first driving circuit layer.

4. The transparent display screen according to claim 2, characterized in that: The transparent display screen comprises a first driving circuit layer, a first light emitting device layer and a second driving circuit layer, wherein the first driving circuit layer and the first light emitting device layer are located in the transparent display area, and the second driving circuit layer is located in the transparent dummy area, and The first driving circuit layer and the second driving circuit layer are in the same layer and made of the same material; Preferably, the transparent display screen further comprises a second light emitting device layer located in the transparent dummy area, and the second light emitting device layer is in the same layer and made of the same material as the first light emitting device layer.

5. The transparent display screen according to claim 1, characterized in that: Also includes: The opaque frame area is located outside the transparent frame area. The opaque frame area includes a driving chip, and the driving chip is electrically connected to the transparent frame area.

6. The transparent display screen according to claim 5, characterized in that: The transparent display area is connected to the opaque frame area, the transparent frame area and the transparent dummy area are partially arranged around the transparent display area, and the transparent frame area is located between the transparent dummy area and the transparent display area.

7. The transparent display screen according to claim 5, characterized in that: The distance between the first bottom edge of the transparent display area close to the opaque frame area and the opaque frame area is a preset distance, and the transparent dummy area is arranged around the transparent display area to form a closed figure, and The transparent frame area is arranged around the transparent display area, and an opening is formed at a position corresponding to the first bottom edge; or The transparent frame area is arranged around the transparent display area to form a closed figure.

8. The transparent display screen according to any one of claims 1 to 7, characterized in that: It also includes a transmittance adjustment structure, wherein the transmittance adjustment structure is located on one side of the transparent display screen; Preferably, the transmittance adjustment structure comprises a first transparent electrode, an electrochromic layer and a second transparent electrode, wherein the electrochromic layer is located between the first transparent electrode and the second transparent electrode; Further preferably, the first transparent electrode comprises a plurality of electrode units arranged in an array.

9. A vehicle-mounted transparent display window, characterized in that: include: A first glass, a second glass, and a transparent display screen located between the first glass and the second glass, wherein the transparent display screen is the transparent display screen according to any one of claims 1 to 8.

10. A method for preparing a vehicle-mounted transparent display window, characterized in that: include: Obtain a first glass and a second glass; Obtain a transparent display screen according to any one of claims 1 to 8, wherein the transparent display screen comprises a transparent display area, a transparent frame area, and a transparent dummy area; Placing the transparent display screen between the first glass and the second glass; At least one of the first glass, the second glass and the transparent dummy area is cut so that the orthographic projection of the transparent display screen on the first glass overlaps with the first glass and overlaps with the orthographic projection of the second glass on the first glass.

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