Display device and manufacturing method therefor

Abstract

A display device and a manufacturing method therefor. The display device comprises: a first display module (10), the first display module (10) being a transparent display module; and a pattern layer (20), the pattern layer (20) exposing the first display module (10). The transparency of the first display module (10) can mitigate the sense of disconnection between a screen body and a surrounding decorative background, thereby facilitating optimizing the overall effect; the pattern layer (20) exposes the first display module (10), so that the pattern layer (20) will not block a display picture of the first display module (10), thereby optimizing the display effect; and a decorative pattern presented by the pattern layer (20) enhances the aesthetic appeal and style of the appearance of the display device, thereby solving the technical problem in the related art that the design of display products is insufficient to meet the requirements of users.

Description

Display device and method of manufacturing the same

[0001] Cross-reference to Related Applications

[0002] This application claims priority to Chinese Patent Application No. 202411105017.3, filed on August 12, 2024, entitled “Display device and method of manufacturing the same,” the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0003] The present application relates to the technical field of display, in particular to a display device and a method of manufacturing the same. BACKGROUND

[0004] With the rapid development of terminal devices, more and more display panels are widely used in people's daily life and work, bringing great convenience to people's daily life and work, and becoming an indispensable important tool for people today.

[0005] At present, with the continuous improvement of user aesthetics, users have higher pursuit of the beauty and fashion of display products in the fields of vehicle-mounted and smart home display, and the design of display products of related technologies has already been insufficient to meet the needs of users.

[0006] SUMMARY

[0007] The embodiments of the present application provide a display device and a method of manufacturing the same, which can solve the technical problem that the design of display products in related technologies is insufficient to meet the needs of users.

[0008] In a first aspect, the embodiments of the present application provide a display device, comprising: a first display module, the first display module being a transparent display module; and a pattern layer, the pattern layer exposing the first display module.

[0009] Based on the same inventive concept, in a second aspect, the embodiments of the present application further provide a method of manufacturing a display device, comprising:

[0010] adhering the display surface of the first display module and a first region of a first surface of a cover plate by using a first adhesive layer, the first surface further comprising a second region adjacent to the first region;

[0011] spraying a pattern material on the second region and a non-display surface of the first display module;

[0012] removing the pattern material on the non-display surface of the first display module;

[0013] adhering the non-display surface of the first display module and a second display module by using a second adhesive layer.

[0014] According to the display device and the manufacturing method thereof provided in the embodiments of the present application, the first display module is a transparent display module, the transparent characteristic of the first display module can weaken the sense of separation between the screen body and the peripheral decoration background, and helps to optimize the overall effect; the pattern layer exposes the first display module, so that the pattern layer does not cause the display picture of the first display module to be blocked, thereby optimizing the display effect; the decorative pattern presented by the pattern layer improves the appearance and fashion of the display device; therefore, the display device and the manufacturing method thereof provided in the embodiments of the present application can solve the technical problem that the design of the display product in the related art cannot meet the user demand.

[0015] The above description is only a summary of the technical solutions of the present application, in order to enable the technical means of the present application to be more clearly understood, and to be implemented according to the content of the description, and in order to enable the above and other purposes, characteristics and advantages of the present application to be more obvious and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0016] Other characteristics, purposes and advantages of the present application will become more apparent by reading the following detailed description of the non-limiting embodiments with reference to the accompanying drawings, wherein the same or similar reference signs represent the same or similar features, and the drawings are not drawn according to the actual scale.

[0017] Fig. 1 shows a top view structural schematic diagram of a display device provided in an embodiment of the present application;

[0018] Fig. 2 shows a cross-sectional structural schematic diagram of the A-A' direction in Fig. 1;

[0019] Fig. 3 shows a schematic diagram of the display device shown in Fig. 1 in a first state;

[0020] Fig. 4 shows a cross-sectional structural schematic diagram of a display device in a comparative example;

[0021] Fig. 5 shows a schematic diagram of the display device shown in Fig. 4 in a first state;

[0022] Fig. 6 shows a light path diagram in an oblique angle in Fig. 2;

[0023] Fig. 7 shows another top view structural schematic diagram of a display device provided in an embodiment of the present application;

[0024] Fig. 8 shows a cross-sectional structural schematic diagram of the B-B' direction in Fig. 7;

[0025] Fig. 9 shows another cross-sectional structural schematic diagram of the A-A' direction in Fig. 1;

[0026] Fig. 10 shows a top view structural schematic diagram of a partial area of a display device provided in an embodiment of the present application;

[0027] FIG. 11 shows a structure schematic diagram of a gate driving circuit in a display device according to an embodiment of the present application;

[0028] FIG. 12 shows a structure schematic diagram of a shift register in a display device according to an embodiment of the present application;

[0029] FIG. 13 shows a layout structure schematic diagram of a partial region of a display device according to an embodiment of the present application;

[0030] FIG. 14 shows another cross-sectional structure schematic diagram of the direction of B-B' in FIG. 7;

[0031] FIG. 15 shows a flow schematic diagram of a method for manufacturing a display device according to an embodiment of the present application;

[0032] FIG. 16 shows a structure schematic diagram in a manufacturing process of a method for manufacturing a display device according to an embodiment of the present application;

[0033] FIG. 17 shows another structure schematic diagram in a manufacturing process of a method for manufacturing a display device according to an embodiment of the present application;

[0034] FIG. 18 shows another structure schematic diagram in a manufacturing process of a method for manufacturing a display device according to an embodiment of the present application;

[0035] FIG. 19 shows another structure schematic diagram in a manufacturing process of a method for manufacturing a display device according to an embodiment of the present application. DETAILED DESCRIPTION

[0036] The features and exemplary embodiments of various aspects of the present application will be described in detail below with reference to the drawings. The following detailed description is merely provided to explain the present application, and is not configured to limit the present application. The present application can be implemented without some of the specific details, which are well known to those skilled in the art. The following description of the embodiments is merely provided to provide a better understanding of the present application by showing examples of the present application.

[0037] It should be noted that, in the description of the present application, the terms such as first and second, etc. are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or sequence between these entities or operations. Also, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the elements defined by the statement "include" do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0038] It should be understood that, when describing the structure of a component, when one layer, one region is referred to as being "on" or "above" another layer, another region, it can mean being directly on or above another layer, another region, or other layers or regions can be included therebetween. And if the component is turned over, the layer, the region will be "under" or "below" the other layer, the other region.

[0039] It should be understood that the term "and / or" used herein is only to describe the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects have an "or" relationship.

[0040] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0041] Various modifications and changes can be made to the present application without departing from the spirit or scope of the present application, which will be apparent to those skilled in the art. Therefore, the present application intends to cover the modifications and changes of the present application falling within the scope of the corresponding claims (claimed technical solutions) and their equivalents. It should be noted that the embodiments provided by the present application can be combined with each other without contradiction.

[0042] Embodiments of the present application provide a display device and a manufacturing method thereof. The embodiments of the present application will be described below with reference to the accompanying drawings.

[0043] FIG. 1 shows a top view of a display device according to an embodiment of the present application. As shown in FIG. 1, the display device according to an embodiment of the present application includes a first display module 10 and a pattern layer 20. The first display module 10 is in a transparent display mode, and the pattern layer 20 exposes the first display module 10.

[0044] The first display module 10 is configured to display a picture. When the first display module 10 does not display a picture, the first display module 10 is in a transparent state. The transparent property of the first display module 10 can weaken the sense of separation between the screen and the surrounding decorative background, and help to optimize the overall effect.

[0045] For example, the first display module 10 includes a micro light-emitting diode (Micro LED) display module. Of course, in other examples, the first display module 10 can be an organic light-emitting diode (OLED) display module or other types of display modules.

[0046] It should be noted that FIG. 1 shows the first display module 10 in a display state. For example, the picture currently displayed by the first display module 10 is a "smiling face".

[0047] It should be understood that the pattern layer 20 is configured to present a pattern. For example, the pattern layer 20 presents a wood grain pattern or other texture pattern. The pattern presented by the pattern layer 20 can be used as a decorative pattern of the display device, thereby optimizing the appearance design of the display device. For example, such a display device can be applied in the field of vehicle-mounted devices. The pattern layer 20 presents a wood grain pattern (first pattern), which can highlight the seniority of the vehicle interior, so that the vehicle-mounted display device achieves the effect of integrating functionality and aesthetics.

[0048] The pattern layer 20 exposes the first display module 10, so that the pattern layer 20 does not block the display picture of the first display module 10, thereby avoiding affecting the display effect of the display device.

[0049] For example, the pattern layer 20 includes ink.

[0050] According to the display device provided in the embodiments of the present application, the first display module is a transparent display module, the transparent characteristic of the first display module can weaken the sense of separation between the screen body and the surrounding decorative background, and helps to optimize the overall effect; the pattern layer exposes the first display module, so that the pattern layer does not block the display picture of the first display module, thereby optimizing the display effect; the decorative pattern presented by the pattern layer improves the appearance and fashion of the display device; therefore, the display device provided in the embodiments of the present application can solve the technical problem that the design of the display product in the related art cannot meet the user demand.

[0051] FIG. 2 shows a schematic diagram of a cross-sectional structure in the A-A' direction of FIG. 1. Please refer to FIGS. 1 and 2 together, in some examples, the pattern layer 20 surrounds the first display module 10, and in the thickness direction Z of the display device, the pattern layer 20 does not overlap the first display module 10.

[0052] In the thickness direction Z of the display device, the pattern layer 20 does not overlap the first display module 10, including: in the front view, the pattern layer 20 completely exposes the first display module 10. In this way, the first display module can be prevented from being blocked by the pattern layer, and at the same time, the pattern layer can also be prevented from overlapping the pattern in other areas due to overlapping with the first display module; in addition, the difference in the connection between the pattern layer and the background layer below the first display module in the visual effect can also be avoided (this point will be described in detail below).

[0053] It can be understood that, in the direction X parallel to the plane on which the display device is located, the minimum distance between the pattern layer 20 and the first display module 10 is greater than or equal to 0.

[0054] In some examples, as shown in FIG. 2, the display device further includes a second display module 30, the second display module 30 is located on the side of the first display module 10 away from the display surface (i.e., the second display module 30 is located on the side of the first display module 10 away from the display surface), and in the thickness direction Z of the display device, the second display module 30 at least partially overlaps the pattern layer 20.

[0055] In the thickness direction Z of the display device, the second display module 30 also overlaps the first display module 10. For example, the area of the second display module 30 is greater than the area of the first display module 10, and the orthographic projection of the first display module 10 on the plane on which the display device is located is surrounded by the orthographic projection of the second display module 30 on the plane on which the display device is located.

[0056] In the embodiments of the present application, by further arranging the second display module 30 on the backlight side (i.e., the side away from the display surface) of the first display module 10, the display device can have a more flexible display design.

[0057] For example, the display device can display some dynamic pictures with complex patterns and rich colors by using the first display module 10, and can display some text pictures such as e-book information by using the second display module 30, so as to present more types of pictures.

[0058] It can be understood that when the second display module 30 displays information, the first display module 10 does not display. Since the first display module 10 is transparent, the second display module 30 is located on the backlight side of the first display module 10, and the viewer can clearly see the content displayed by the second display module 30.

[0059] It can be understood that in the embodiment, the second display module serves as a background layer below the first display module. Of course, in other examples, the background layer below the first display module is not limited to a display module, for example, an ink pattern layer or other pattern layer can also serve as a background layer.

[0060] In some examples, the display device at least includes a first state. In the first state, the first display module 10 does not display, and the second display module 30 displays a first pattern. As shown in FIG. 3, the first pattern displayed by the second display module 30 is related to the pattern of the pattern layer 20.

[0061] The first pattern displayed by the second display module 30 is related to the pattern of the pattern layer 20, which means that the first pattern displayed by the second display module 30 is the same as or similar to the type of the pattern of the pattern layer 20. For example, when the pattern of the pattern layer 20 is a wood grain pattern, the first pattern displayed by the second display module 30 is also a wood grain pattern.

[0062] In the first state, by controlling the first pattern displayed by the second display module 30 to be related to the pattern of the pattern layer 20, the hiding effect of the first display module 10 when not displaying a picture can be improved. That is, when the first display module 10 does not display, the pattern presented by the whole display device viewed by the viewer is consistent, which increases the fit of the first display module 10 with the surrounding decoration environment, and makes the pattern of the whole area of the display device integrated, thereby improving the visual effect.

[0063] For example, when the display device is applied in the field of vehicle-mounted, the pattern of the pattern layer 20 can be designed as a wood grain pattern. In the first state, by controlling the second display module 30 to also display a wood grain pattern, the whole display device can present a complete wood veneer.

[0064] In one example, referring to FIG. 3, when the lines in the pattern of the pattern layer 20 are irregularly distributed, the extension paths of the lines in the first pattern displayed by the second display module 30 can be designed according to the extension paths of the lines in the pattern of the pattern layer 20, so that the lines displayed by the second display module 30 and the lines extending from the pattern of the pattern layer 20 are continuous, and the pattern of the pattern layer 20 and the first pattern displayed by the second display module 30 are matched, so as to ensure the coherence of the overall presented pattern and further improve the visual effect.

[0065] Alternatively, in another example, when the lines in the pattern of the pattern layer 20 are periodically distributed, i.e., the lines in the pattern of the pattern layer 20 are regularly distributed, the lines in the first pattern displayed by the second display module 30 can also be periodically distributed, and in this case, the first pattern displayed by the second display module 30 can be the same as the pattern of the pattern layer 20.

[0066] In some embodiments, referring to FIG. 2, the display device further includes a cover plate 50 located on one side of the display surface of the first display module 10, and a first adhesive layer 41 is arranged between the first display module 10 and the cover plate 50, and a second adhesive layer 42 is arranged between the first display module 10 and the second display module 30 and between the pattern layer 20 and the second display module 30.

[0067] It can be understood that the first adhesive layer 41 and the second adhesive layer 42 have adhesion, and can be used to bond different structures together to increase reliability.

[0068] The first adhesive layer 41 and the second adhesive layer 42 are transparent structures. For example, the first adhesive layer 41 and / or the second adhesive layer 42 are optical adhesive (OCA).

[0069] In an example, the gap between the first display module 10 and the pattern layer 20 is filled with a transparent filling layer 40, and the transparent filling layer 40 is in contact with the first adhesive layer 41 and the second adhesive layer 42.

[0070] As an example, the pattern layer 20 includes ink, and the ink has adhesion, so that the pattern layer 20 can be directly attached to the cover plate 50.

[0071] In other examples, the first adhesive layer 41 can also be arranged between the pattern layer 20 and the cover plate 50, i.e., the pattern layer 20 and the first display module 10 are both attached to the cover plate 50 through the first adhesive layer 41.

[0072] As an example, the second display module 30 includes an electronic paper display module, and the electronic paper display module is relatively thin, and the addition of the electronic paper display module will not greatly affect the overall thickness of the display device.

[0073] The inventor of the present application found in the design process that when the first display module does not display and the second display module displays the first pattern, at the oblique viewing angle, the pattern of the pattern layer and the first pattern displayed by the second display module have obvious differences at the joint, abnormal effects of misalignment of the patterns of the two occur, obvious fragmentation is present, and the visual effect of the display device is affected.

[0074] For example, as shown in FIG. 4, in the thickness direction Z of the display device, the ink layer 02 and the transparent display module 1 at least partially overlap. In order to fill the step caused by the ink layer 02, the thickness of the first optical adhesive layer OCA1 must be larger, which leads to a larger distance between the ink layer 02 and the electronic paper display module 03, and the distance between the ink layer 02 and the electronic paper display module 03 is marked as h1 in FIG. 4.

[0075] In the case where the distance between the ink layer 02 and the electronic paper display module 03 is large, at the oblique viewing angle, as shown in FIG. 4, the position point c1 on the ink layer 02 and the position point c2 on the electronic paper display module 3 observed by the human eye are spliced together, while in the thickness direction Z of the display device, the position point c1 on the ink layer 02 and the position point c3 on the electronic paper display module 03 overlap, that is, in fact, the position point c1 on the ink layer 02 and the position point c3 on the electronic paper display module 03 are spliced, thereby causing the pattern observed by the human eye to have the abnormal effect of misalignment of the patterns as shown in FIG. 5, and causing the pattern of the ink layer 02 observed by the human eye and the pattern displayed by the electronic paper display module 03 to have a misalignment at the joint. As the ink layer 02 and the electronic paper display module 3 are two pattern layers, the transparent display module 01 is sandwiched between the two pattern layers at the joint or the connection area, which also affects the visibility of the visual difference at the connection.

[0076] In the embodiment of the present application, please refer to FIG. 6, in the thickness direction Z of the display device, the pattern layer 20 does not overlap with the first display module 10, in this way, the first adhesive layer 41 does not need to fill the step of the pattern layer 20, therefore, the first adhesive layer 41 can be designed to be relatively thin, thereby reducing the distance h2 between the pattern layer 20 and the second display module 30, h2 < h1, the position point c4 on the pattern layer 20 and the position point c5 on the second display module 30 observed by the human eye are spliced together, in the thickness direction Z of the display device, the position point c4 on the pattern layer 20 and the position point c5 on the second display module 30 can basically overlap, thereby improving the misalignment of the pattern of the pattern layer and the first pattern displayed by the second display module at the joint. It can be understood that in the embodiment of the present application, the pattern layer 20 and the second display module 30 are two pattern layers, and the first display module 10 is no longer arranged between the two pattern layers, thereby improving the visibility of the visual difference at the connection of the two pattern layers.

[0077] As an example, the thickness of the first bonding layer 41 is 10um-50um. For example, the thickness of the first bonding layer 41 is 10um, 30um, 50um, etc.

[0078] In some examples, as shown in FIG. 2, the pattern layer 20 and the first display module 10 at least partially overlap in the direction X parallel to the plane on which the display device is located. In this way, the distance between the pattern layer 20 and the second display module 30 can be further reduced, thereby further improving the misalignment feeling of the pattern of the pattern layer and the first pattern displayed by the second display module at the joint. In addition, in this design, the overall thickness of the display device can be reduced.

[0079] As an example, the pattern layer 20 and the first display module 10 at least partially overlap in the direction X parallel to the plane on which the display device is located, including: in the thickness direction of the display device, the top surface of the pattern layer 20 is closer to the cover plate 50 than the top surface of the first display module 10, and the bottom surface of the pattern layer 20 is located between the top surface and the bottom surface of the first display module 10; or, in the thickness direction of the display device, the top surface of the pattern layer 20 is flush with the top surface of the first display module 10, and the bottom surface of the pattern layer 20 is located between the top surface and the bottom surface of the first display module 10; or, the thickness of the pattern layer 20 is less than the thickness of the first display module 10, and in the thickness direction of the display device, the top and bottom surfaces of the pattern layer 20 are located between the top surface and the bottom surface of the first display module 10. For examples in which the pattern layer 20 and the first display module 10 at least partially overlap in the direction X, they will not be listed one by one here.

[0080] Of course, in other examples, the pattern layer 20 and the first display module 10 can also have no overlap at all in the direction X parallel to the plane on which the display device is located.

[0081] In some examples, as shown in FIG. 2, the top surface of the pattern layer 20 and the top surface of the first display module 10 are not flush, and / or the bottom surface of the pattern layer 20 and the bottom surface of the first display module 10 are not flush.

[0082] In other words, the surface of the pattern layer 20 parallel to the light exit surface of the display device is not flush with the surface of the first display module 10 parallel to the light exit surface of the display device.

[0083] The top surface of the pattern layer 20 and the top surface of the first display module 10 are not flush, and / or the bottom surface of the pattern layer 20 and the bottom surface of the first display module 10 are not flush, including any one of the following design methods:

[0084] Design method one, the top surface of the pattern layer 20 and the top surface of the first display module 10 are not flush, and the bottom surface of the pattern layer 20 and the bottom surface of the first display module 10 are not flush;

[0085] In the second design, the top surface of the pattern layer 20 and the top surface of the first display module 10 are not flush, and the bottom surface of the pattern layer 20 and the bottom surface of the first display module 10 are flush.

[0086] In the third design, the top surface of the pattern layer 20 and the top surface of the first display module 10 are flush, and the bottom surface of the pattern layer 20 and the bottom surface of the first display module 10 are not flush.

[0087] For example, in the first design, in the thickness direction of the display device, the top surface of the pattern layer 20 is closer to the cover plate 50 than the top surface of the first display module 10, and the bottom surface of the pattern layer 20 is between the top surface and the bottom surface of the first display module 10; or in the thickness direction of the display device, the top surface and the bottom surface of the pattern layer 20 are both between the top surface and the bottom surface of the first display module 10; or in the thickness direction of the display device, the top surface of the first display module 10 is closer to the cover plate 50 than the top surface of the pattern layer 20, and the bottom surface of the pattern layer 20 is between the top surface and the bottom surface of the first display module 10; or in the thickness direction of the display device, the top surface of the first display module 10 is closer to the cover plate 50 than the top surface of the pattern layer 20, and the bottom surface of the pattern layer 20 is farther away from the cover plate 50 than the bottom surface of the first display module 10. In addition, other examples of the first design and specific examples of the second design and the third design are not listed here.

[0088] In the first design, the top surface of the pattern layer 20 is the surface of the pattern layer 20 facing the light-emitting surface of the display device, and the bottom surface of the pattern layer 20 is the surface of the pattern layer 20 away from the light-emitting surface of the display device; the top surface of the first display module 10 is the surface of the first display module 10 facing the light-emitting surface of the display device, and the bottom surface of the first display module 10 is the surface of the first display module 10 away from the light-emitting surface of the display device.

[0089] In some examples, as shown in FIG. 2, in the direction X parallel to the plane on which the display device is located, the distance d1 between the pattern layer 20 and the first display module 10 is greater than 0. That is, in the direction X parallel to the plane on which the display device is located, there is a gap between the pattern layer 20 and the first display module 10. Further, the gap between at least part of the pattern layer 20 and the first display module 10 has a transparent filling layer 40.

[0090] The transparent filling layer 40 can be transparent to light, for example, in the case where a second display film layer is further provided on the side of the first display module 10 away from the display surface, the light emitted by the second display module can be transmitted through the transparent filling layer 40.

[0091] For example, the transparent filling layer 40 can have viscosity, for example, the transparent filling layer 40 comprises optically clear adhesive (OCA), and the transparent filling layer 40 with viscosity can adhere the pattern layer 20 and the first display module 10, thereby increasing the reliability of the display device.

[0092] In some examples, please refer to FIG. 7 and FIG. 8, in the direction X parallel to the plane where the display device is located, the end surface of the pattern layer 20 is in contact with the end surface of the first display module 10. Herein, the “end surface” of the pattern layer 20 refers to one end surface of the pattern layer 20 facing the first display module 10; the “end surface” of the first display module 10 refers to one end surface of the first display module 10 facing the pattern layer 20.

[0093] In other words, in the direction X parallel to the plane where the display device is located, the distance between the pattern layer 20 and the first display module 10 is equal to 0. That is, in the direction X parallel to the plane where the display device is located, there is no gap between the pattern layer 20 and the first display module 10.

[0094] In the embodiment, the gap between the pattern layer 20 and the first display module 10 shown in FIG. 2 is removed, and instead, the end surface of the pattern layer 20 is in contact with the end surface of the first display module 10, which can improve the visual effect difference. In addition, the end surface of the pattern layer 20 in contact with the end surface of the first display module 10 can also reduce the frame of the display device, thereby realizing narrow frame, and the end surface of the two in contact can simplify the overall structure, which is conducive to improving the structural stability.

[0095] In some examples, as shown in FIG. 2, the first display module 10 comprises a display area 11 and a frame area 12, and the light transmittance of the frame area 12 and the light transmittance of the display area 11 tend to be consistent.

[0096] The light transmittance of the frame area 12 and the light transmittance of the display area 11 tend to be consistent, including that the light transmittance of the frame area 12 and the light transmittance of the display area 11 are the same or similar. A certain error between the two can be allowed. For example, the difference between the light transmittance of the frame area 12 and the light transmittance of the display area 11 can be between -10% and +10%. For example, the light transmittance of the frame area 12 and the light transmittance of the display area 11 are presented as: the human eye cannot observe the difference between the light transmittance of the two.

[0097] If the difference between the light transmittance of the frame area 12 and the light transmittance of the display area 11 is large, the difference between the amount of light passing through the display area 11 and the amount of light passing through the frame area 12 will be large, which will affect the consistency between the pattern of the pattern layer 20 in the first state and the first pattern displayed by the second display module 30. In the embodiment of the present application, the light transmittance of the frame area 12 is designed to be consistent with the light transmittance of the display area 11, and the light transmittance of the frame area 12 is designed by comparing with the light transmittance of the display area 11. In this way, the problem of poor pattern consistency caused by the difference between the light transmittance of the frame area 12 and the light transmittance of the display area 11 can be improved, thereby further improving the visual effect.

[0098] The display area 11 includes sub-pixels (not shown in the figure), and the frame area 12 includes a gate drive circuit (not shown in the figure), and the sub-pixels emit light under the drive of the gate drive circuit. Specifically, the sub-pixel includes a pixel circuit and a light emitting element, the gate drive circuit is connected with the pixel circuit, and the control signal output by the gate drive circuit can control the state of the pixel circuit, and the pixel circuit drives the light emitting element to emit light under the control of the gate drive circuit.

[0099] The pixel circuits are arranged in an array in the display area. The gate drive circuit includes a plurality of shift registers connected in cascade. For example, the plurality of shift registers connected in cascade output effective pulses in sequence, thereby scanning a plurality of rows of pixel circuits row by row.

[0100] The gate drive circuit and the pixel circuit each include elements, the elements of the gate drive circuit are connected through wires, and the elements of the pixel circuit are connected through wires. The elements include transistors, capacitors, etc. The gate of the transistor and the substrate of the capacitor are made of metal, and the wires connecting the elements are also made of metal. The element distribution density and the proportion of metal area in a region will affect the light transmittance of the region.

[0101] In some examples, the first display module includes a display area and a frame area, and the element distribution density of the frame area per unit area is consistent with the element distribution density of the display area per unit area.

[0102] In some examples, the first display module includes a display area and a frame area, and the proportion of metal area of the frame area per unit area is consistent with the proportion of metal area of the display area per unit area.

[0103] The gate drive circuit includes a plurality of shift registers connected in cascade, and the number of elements of the shift registers is usually larger than the number of elements of the pixel circuit. For example, in order to make the light transmittance of the frame area 12 consistent with the light transmittance of the display area 11, the frame area 12 can be designed to be wider, and the size of the elements and the wires remains unchanged.

[0104] For a more intuitive illustration of the widened design of the frame area 12, please refer to FIG. 9, which is the same as FIG. 2 except that the frame area 12 is widened. Specifically, the width of the frame area 12 in FIG. 9 is d3, and the width of the frame area 12 in FIG. 2 is d2, d3>d2. In this context, the "width" of the frame area refers to the dimension of the frame area 12 in the direction Y1 pointing from the frame area 12 to the display area 11.

[0105] Further, in the structures shown in FIG. 2 and FIG. 9, the elements and traces in the frame area 12 can have the same size. It can be understood that, in the structure shown in FIG. 9, the frame area 12 is widened, and thus, in the case where the size of the elements and traces remains unchanged, the gaps between elements, between an element and a trace, and between traces in the frame area of FIG. 9 are larger than those in the frame area of FIG. 2, thereby increasing the light transmittance of the frame area.

[0106] In some examples, the frame area can also be divided into an element area and a non-element area, the element area being used to place elements, and the non-element area not being used to place elements. Specifically, as shown in FIG. 10, the first display module 10 includes a display area 11 and a frame area 12, the frame area 12 including an element area 121 and a first transparent area 122, the light transmittance of the first transparent area 122 being greater than that of the element area 121.

[0107] It can be understood that the element area 121 includes elements, and the elements are used to constitute a driving circuit that needs to be provided in the frame area. For example, the elements are used to constitute a shift register, and the shift register is used to provide a scanning signal and / or a light-emitting control signal to a pixel circuit.

[0108] The first transparent area 122 can not include elements, and thus, the first transparent area 122 has a higher light transmittance than the element area 121. The first transparent area 122 can be provided with traces, some of which are used to connect elements in the frame area 12, or some of which are used to connect a driving circuit in the frame area 12 and a driving circuit in the display area AA.

[0109] For example, the first transparent area 122 is provided with connection traces. The connection traces can be metal traces, such as traces made of titanium / aluminum / titanium (Ti / Al / Ti) laminates, tungsten, nickel, etc. The connection traces can also be transparent traces, such as traces made of indium tin oxides (ITO) or other transparent materials, to ensure the light transmittance of the first transparent area.

[0110] It should be noted that, in order to visually reflect the light transmittance of the element area 121 and the first transparent area 122, the element area 121 is filled with a dark color in FIG. 10, the first transparent area 122 is represented by a transparent frame, and the specific elements in the element area 121 are not shown. The design of the element area 121 and the first transparent area 122 in the present application is universal, and the placement position and density of the elements in the element area 121 are not limited.

[0111] In some examples, please continue to refer to FIG. 10, the element area 121 and the first transparent area 122 are alternately distributed in the direction Y1 from the frame area 12 to the display area 11. For example, in the direction Y1, one element area 121, one first transparent area 122, one element area 121, one first transparent area 122, and so on are alternately distributed. By setting the element area 121 and the first transparent area 122 to be alternately distributed, the light transmittance of the frame area 12 can be relatively uniform as a whole, thereby further improving the visual effect.

[0112] It should be noted that, in FIG. 10, five element areas 121 and four first transparent areas 122 are shown, and the number of element areas 121 and the number of first transparent areas 122 can be set according to actual conditions, which are not limited in the present application.

[0113] In some examples, in the case of alternately distributing the element area 121 and the first transparent area 122, the number of element areas 121 is greater than the number of first transparent areas 122. It can be understood that, in the direction Y1, both sides are element areas 121, and one of the element areas 121 is adjacent to the display area 11. The elements in the element area 121 constitute a driving circuit which needs to be connected with the pixel circuit in the display area 11, and the element area 121 is adjacent to the display area 11, which can facilitate the connection of the driving circuit in the frame area 12 with the pixel circuit in the display area 11.

[0114] In some examples, the element area 121 includes a plurality of elements (not shown in FIG. 10), and the plurality of elements of at least one element area 121 belong to the same functional circuit module.

[0115] For example, as shown in FIG. 11, the frame area 12 is provided with a gate driving circuit, and the gate driving circuit includes a plurality of cascaded shift registers, wherein the output end OUT of the upper shift register is connected with the input end IN of the lower shift register. As shown in FIG. 12, the shift register includes a plurality of different functional circuit modules, for example, the plurality of functional circuit modules are respectively a first node control module 01, a second node control module 02, a third node control module 04, a first output control module 05, and a second output control module 06. For example, the plurality of elements of at least one element area 121 can belong to the first node control module 01.

[0116] Generally, multiple elements in the same functional circuit module need to be connected with each other. By setting multiple elements in the element region 121 as belonging to the same functional circuit module, that is, selecting multiple elements with relatively close connection relationship to be placed in the same element region, the connection between multiple elements in the element region can be facilitated.

[0117] It should be noted that the structure shown in FIGS. 11 and 12 is only an example, and the technical concept of the present application is universal. The present application can also be applied to other structure forms of the driving circuit in the frame region, and the present application does not limit the specific structure of the driving circuit in the frame region.

[0118] In some examples, as shown in FIG. 10, the element region 121 includes at least a first element region 1211 and a second element region 1212. The elements in the first element region 1211 belong to a first functional circuit module, and the elements in the second element region 1212 belong to a second functional circuit module.

[0119] Still taking FIG. 12 as an example, the first functional circuit module can be any one of the first node control module 01, the second node control module 02, the third node control module 04, the first output control module 05, and the second output control module 06, and the second functional circuit module can be any other one of the first node control module 01, the second node control module 02, the third node control module 04, the first output control module 05, and the second output control module 06.

[0120] As an example, the number of element regions 121 can be the same as the number of functional circuit modules of the shift register. The multiple functional circuit modules and the multiple element regions 121 correspond to each other. The elements of the same functional circuit module are placed in each element region 121, and the elements in any two element regions 121 belong to two functional circuit modules.

[0121] For example, still taking FIG. 12 as an example, five element regions 121 can be set, and the five element regions 121 are respectively placed with the first node control module 01, the second node control module 02, the third node control module 04, the first output control module 05, and the second output control module 06.

[0122] Of course, in other examples, the number of element regions can also be different from the number of functional circuit modules of the shift register. For example, the number of element regions is less than the number of functional circuit modules of the shift register. For example, the total number of elements of certain two functional circuit modules of the shift register is relatively small, and the two functional circuit modules can be placed in the same element region. For another example, the number of element regions is greater than the number of functional circuit modules of the shift register. For example, the total number of elements of a certain functional circuit module of the shift register is relatively large, and multiple elements of the functional circuit module can occupy at least two element regions.

[0123] In some examples, as shown in FIG. 10, the widths of the at least two element regions 121 are different. For example, the width of the first element region 1211 is greater than the width of the second element region 1212.

[0124] The frame region includes various functional circuit modules, and the number of elements of different functional circuit modules is different. Therefore, the widths of different element regions can be different to adapt to the number of elements of the functional circuit modules arranged in the element regions.

[0125] Herein, the "width" of an element region refers to the size of the element region in the direction Y1 from the frame region 12 to the display region 11.

[0126] In some examples, as shown in FIG. 10, the element regions 121 include at least a third element region 1213 and a fourth element region 1214, the number of elements in the third element region 1213 is greater than the number of elements in the fourth element region 1214, the width of the third element region 1213 is d33, the width of the fourth element region 1214 is d34, and d33>d34.

[0127] For example, the more the number of elements in an element region, the greater the width of the element region.

[0128] For example, the widths of the first transparent regions 122 are the same, thereby further improving the uniformity of the overall light transmittance of the frame region.

[0129] In some examples, the widths of the at least two first transparent regions 122 are the same.

[0130] For example, the widths of the first transparent regions 122 are the same, thereby further improving the uniformity of the overall light transmittance of the frame region.

[0131] Herein, the "width" of a first transparent region 122 refers to the size of the first transparent region in the direction Y1 from the frame region 12 to the display region 11.

[0132] In some examples, as shown in FIG. 10, the display region 11 includes a second transparent region 112, the width of the at least one first transparent region 122 is the same as the width of the second transparent region 112, and / or the area of the at least one first transparent region 122 is the same as the area of the second transparent region 112.

[0133] The display region 11 includes pixel regions 111, and the pixel regions 111 are separated by the second transparent regions 112. The pixel regions 111 are provided with pixel circuits, and the second transparent regions 112 can not be provided with pixel circuits. The light transmittance of the second transparent regions 112 is greater than the light transmittance of the pixel regions 111. It can be understood that the second transparent regions 112 can extend signal lines.

[0134] For example, the widths of the second transparent regions 112 are the same, the widths of the first transparent regions 122 are the same, and the widths of the first transparent regions 122 are the same as the widths of the second transparent regions 112.

[0135] For example, the areas of the first transparent regions 122 are the same, the areas of the second transparent regions 112 are the same, and the areas of the first transparent regions 122 are the same as the areas of the second transparent regions 112.

[0136] When the transparent regions are approximately rectangular or square, the area of a transparent region is the product of its width and length.

[0137] Herein, the "width" of a second transparent region 112 refers to the dimension of the second transparent region 112 in the direction Y1 from the frame region 12 to the display region 11.

[0138] It should be noted that the element regions and the transparent regions are shown as rectangles in the drawings herein, which is merely an example and does not limit the present application. For example, in other examples, the element regions and / or the transparent regions are n-sided rows, where n is greater than or equal to 3, for example, n is 5, 6, 8, etc. In addition, the boundary lines between the element regions and the transparent regions are not limited to straight lines. Since the elements or the traces are irregular, the boundary lines between the element regions and the transparent regions can be jagged lines, wavy lines, etc. The element regions and the transparent regions need to be connected, but the element regions are provided with elements constituting a circuit module, and the transparent regions are not provided with elements, so the element regions and the transparent regions can not have strict boundaries.

[0139] The difference between the design scheme in which the frame region is widened and divided into an element region and a first transparent region and the design scheme in which the frame region is not widened, as shown in FIG. 2, will be described below with reference to FIG. 13. Image a in FIG. 13 corresponds to the design scheme in which the frame region is not widened, as shown in FIG. 2, and image b in FIG. 13 corresponds to the design scheme in which the frame region is widened and divided into an element region and a first transparent region. It can be understood that image a and image b refer to design schemes of different embodiments.

[0140] The elements in the frame region in the scheme shown in image a are arranged relatively closely. In the scheme shown in image b, since the frame region is widened and divided into an element region 121 and a first transparent region 122, the scheme shown in image b can avoid concentrated arrangement of elements or concentrated traces, thereby increasing the overall light transmittance of the frame region, making the light transmittance of the frame region and the light transmittance of the display region consistent, avoiding the frame region being an opaque region, that is, avoiding the frame region becoming an opaque region between the display region and the pattern layer, so that the overall light transmittance from the display region to the ink layer is consistent and uniform, thereby avoiding the pattern under the oblique viewing angle from having a misalignment feeling at the joint, thereby improving the visual effect.

[0141] It should be noted that the black fillings in FIG. 13 represent backgrounds, the white lines represent wirings, and the patterns formed by the white lines represent elements.

[0142] In some examples, as shown in FIG. 14, the first display module 10 includes a display area 11 and a frame area 12, the frame area 12 includes a first frame area 1201 and a second frame area 1202, the second frame area 1202 is located between the first frame area 1201 and the display area 11; the functional circuit (not shown in the figure) in the first frame area 1201 has no electrical connection relationship with the pixel circuit (not shown in the figure) in the display area 11; the functional circuit (not shown in the figure) in the second frame area 1202 is electrically connected with the pixel circuit in the display area 11.

[0143] It can be understood that the second frame area 1202 is a real frame area, which has signal connection with the pixel circuit in the display area 11 and plays a role in driving the pixel circuit; and the first frame area 1201 is a pseudo frame, which has no signal connection with the pixel circuit in the display area 11. By increasing the first frame area 1201, it is beneficial to play the role of optical consistency.

[0144] For example, the light transmittance of the first frame area 1201 and the second frame area 1202 tends to be consistent.

[0145] In some examples, the first display module 10 includes a display area 11 and a frame area 12, the frame area 12 includes a first frame area 1201 and a second frame area 1202, the second frame area 1202 is located between the first frame area 1201 and the display area 11; the functional circuit (not shown in the figure) in the first frame area 1201 has no electrical connection relationship with the pixel circuit (not shown in the figure) in the display area 11; the functional circuit (not shown in the figure) in the second frame area 1202 is electrically connected with the pixel circuit in the display area 11. The pattern structure of the first frame area 1201 and the pattern structure of the second frame area 1202 are the same or similar.

[0146] For example, the first frame area 1201 and the second frame area 1202 sample the same or similar layout. The structure, arrangement, etc. of the functional circuit of the first frame area 1201 and the structure, arrangement, etc. of the functional circuit of the second frame area 1202 are the same or similar. The light transmittance or reflectivity of the materials of the film layers in the first frame area 1201 and the materials of the film layers in the second frame area 1202 are the same or similar. In this way, the reflectivity of the first frame area 1201 and the second frame area 1202 to light tends to be consistent, which can better play the role of optical consistency.

[0147] It should be noted that the widening design scheme of the frame area is described by the structure shown in FIG. 9 herein, however, this does not limit the application range of the widening design scheme of the frame area, and it can be understood that the widening design scheme of the frame area can also be applied to the design mode in which the end surface of the pattern layer and the end surface of the first display module are in contact, as shown in FIG. 8. Similarly, the design scheme in which the frame area includes the real second frame area and the first frame area as the pseudo frame is described by the structure shown in FIG. 14 herein, however, this does not limit the application range of the design scheme in which the frame area includes the real frame and the pseudo frame, and it can be understood that the design scheme in which the frame area includes the real frame and the pseudo frame can also be applied to the design mode in which there is a gap between the pattern layer and the first display module, as shown in FIG. 2.

[0148] It can be understood that the display device provided by the embodiments of the present application can be a vehicle-mounted display device, or a computer, a television, a wearable product or other display devices with display functions, and the present application does not make specific limitations thereto.

[0149] Based on the same inventive concept, the embodiments of the present application also provide a method for manufacturing a display device. As shown in FIG. 15, the method for manufacturing a display device provided by the embodiments of the present application includes S51-S54.

[0150] The steps S51-S54 are described in detail below in combination with FIGS. 16-19.

[0151] S51, as shown in FIG. 16, the display surface of the first display module 10 and the first area Q1 of the first surface f1 of the cover plate 50 are attached by using the first adhesive layer 41, and the first surface f1 of the cover plate 50 also includes a second area Q2 adjacent to the first area Q1. For example, the second area Q2 surrounds the first area Q1.

[0152] In this paper, the cover plate 50 is a transparent cover plate, for example, the cover plate 50 can be a glass cover plate.

[0153] S52, as shown in FIG. 17, the pattern material 201 is sprayed on the second area Q2 and the non-display surface of the first display module 10. For example, the pattern material 201 includes ink, and the Ink-Jet method can be used to spray multiple layers of ink to achieve a wood grain pattern.

[0154] It can be understood that the pattern material 201 located in the second area Q2 constitutes the pattern layer 20.

[0155] S53, as shown in FIG. 18, the pattern material 201 on the non-display surface of the first display module 10 is removed.

[0156] S54, as shown in FIG. 19, the non-display surface of the first display module 10 is attached to the second display module 30 by using the second adhesive layer 42.

[0157] Compared with the method for preparing the display device by using the bonding, the gap between the pattern layer 20 and the first display module 10 is inevitably caused due to the error in the bonding mode, while the method for preparing the display device provided in the embodiment of the application can ensure that the end surface of the pattern layer 20 and the end surface of the first display module 10 are in contact, so that the design structure without the gap between the pattern layer 20 and the first display module 10 is obtained.

[0158] In accordance with the embodiments of the present application described above, these embodiments do not describe all the details, nor limit the application to the specific embodiments described. Obviously, many modifications and variations can be made in light of the above teachings. The above description is selected and described for the best illustrating the principles of the application and the best practice for putting it into practical use, so that those skilled in the art can well utilize the application and make modifications and variations on the basis of the application. The application is limited only by the claims and their full scope and equivalents.

Claims

1. A display device, comprising: a first display module, the first display module being a transparent display module; a pattern layer, the pattern layer exposing the first display module.

2. The display device according to claim 1, wherein The pattern layer surrounds the first display module, and in a thickness direction of the display device, the pattern layer does not overlap the first display module.

3. The display device according to claim 1, wherein In a direction parallel to a plane on which the display device is located, the pattern layer at least partially overlaps the first display module.

4. The display device according to claim 1, wherein A space between at least part of the pattern layer and the first display module has a transparent filling layer.

5. The display device according to claim 1, wherein An end surface of the pattern layer is in contact with an end surface of the first display module.

6. The display device according to claim 1, wherein A top surface of the pattern layer and a top surface of the first display module are not flush, and / or a bottom surface of the pattern layer and a bottom surface of the first display module are not flush.

7. The display device according to claim 1, wherein The display device further comprises a second display module located on a side of the first display module away from a display surface; in a thickness direction of the display device, the second display module at least partially overlaps the pattern layer.

8. The display device of claim 7, wherein, The second display module is an electronic paper display module. 9.The display device of claim 1, wherein The first display module comprises a display area and a frame area, and a light transmittance of the frame area and a light transmittance of the display area tend to be consistent. 10.The display device of claim 1, wherein The first display module comprises a display area and a frame area, and a distribution density of elements per unit area of the frame area and a distribution density of elements per unit area of the display area tend to be consistent.

11. The display device according to claim 1, wherein The first display module comprises a display area and a frame area, and a metal area ratio per unit area of the frame area and a metal area ratio per unit area of the display area tend to be consistent. 12.The display device of claim 1, wherein The first display module comprises a display area and a frame area, and the frame area comprises an element area and a first transparent area, and a light transmittance of the first transparent area is greater than a light transmittance of the element area. 13.The display device of claim 12, wherein In a direction from the frame area to the display area, the element area and the first transparent area are alternately distributed. 14.The display device of claim 13, wherein A number of the element areas is greater than a number of the first transparent areas.

15. The display device of claim 12, wherein, The element area comprises a plurality of elements, and the plurality of elements of at least one element area belong to a same functional circuit module.

16. The display device of claim 15, wherein, The element area comprises at least a first element area and a second element area, elements of the first element area belong to a first functional circuit module, and elements of the second element area belong to a second functional circuit module.

17. The display device of claim 12, wherein, Widths of at least two element areas are different.

18. The display device of claim 17, wherein, The element area comprises at least a third element area and a fourth element area, a number of elements of the third element area is greater than a number of elements of the fourth element area, and a width of the third element area is greater than a width of the fourth element area.

19. The display device of claim 12, wherein, Widths of at least two first transparent areas are the same.

20. The display device of claim 12, wherein, The display area comprises a second transparent area; A width of at least one first transparent area is the same as a width of the second transparent area, and / or an area of at least one first transparent area is the same as an area of the second transparent area.

21. The display device of claim 1, wherein, The first display module comprises a display area and a frame area, the frame area comprises a first frame area and a second frame area, and the second frame area is located between the first frame area and the display area. The functional circuit in the first frame area has no electrical connection relationship with the pixel circuit in the display area. The functional circuit in the second frame area is electrically connected with the pixel circuit in the display area.

22. The display device of claim 1, wherein, The first display module comprises a display area and a frame area, the frame area comprises a first frame area and a second frame area, and the second frame area is located between the first frame area and the display area. The functional circuit in the first frame area has no electrical connection relationship with the pixel circuit in the display area. The functional circuit in the second frame area is electrically connected with the pixel circuit in the display area. The pattern structure of the first frame area and the pattern structure of the second frame area are the same or similar.

23. The display device of claim 7, wherein, The display device at least comprises a first state, in the first state, the first display module does not display, the second display module displays a first pattern, and the first pattern is related to the pattern of the pattern layer.

24. The display device of claim 7, wherein, The display device further comprises a cover plate, and the cover plate is located on one side of the display surface of the first display module. A first adhesive layer is arranged between the first display module and the cover plate. A second adhesive layer is arranged between the first display module and the second display module and between the pattern layer and the second display module.

25. A method for preparing a display device, comprising: attaching a display surface of a first display module and a first region of a first surface of a cover plate by using a first adhesive layer, the first surface further comprising a second region adjacent to the first region; spraying a pattern material on the second region and a non-display surface of the first display module; removing the pattern material on the non-display surface of the first display module; attaching the non-display surface of the first display module and a second display module by using a second adhesive layer.

Images