Display module and preparation method therefor

Abstract

A display module and a preparation method therefor. The preparation method for a display module comprises: providing a display panel (1), the display panel (1) having a light-emitting surface (10), and the light-emitting surface (10) comprising a display region (101); then printing, on the display region (101) of the light-emitting surface (10), a plurality of transparent adhesive droplets (2a) which are at intervals; next, curing the plurality of transparent adhesive droplets (2a) to form a plurality of cured adhesive layers (2) which are arranged at intervals; and then printing an ink layer (3) on the display region (101) of the light-emitting surface (10), the ink layer (3) surrounding the cured adhesive layers (2). According to the preparation method for a display module, on a flat surface or a complex spatial curved surface, on the basis of different requirements, a display module having a decoration function is prepared, and the display module may be matched with a decorative panel.

Description

Display module and manufacturing method thereof

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority based on Chinese patent application 2023112028558 filed on September 18, 2023, and all of its contents are incorporated herein by reference.

Technical field

[0003] The present application relates to the field of display technology, and in particular to a display module and a method for preparing the same. [Background Technology]

[0004] As electronic devices become increasingly intelligent, screens are increasingly being incorporated into household appliances and other devices. However, existing display devices typically appear black when not in use, failing to blend in well with surrounding décor and impacting the overall decorative design. Furthermore, display devices with decorative panel functionality in related technologies typically have high manufacturing costs and limited flexibility, making them difficult to mass-produce.

[0005] [Summary of the invention]

[0006] The display module and preparation method thereof provided in the present application are intended to solve the problems existing in the prior art that display devices are difficult to integrate with environmental decoration and difficult to be manufactured in batches at low cost and flexibility.

[0007] To solve the above technical problems, a technical solution adopted in this application is to provide a method for preparing a display module, comprising:

[0008] A display panel is provided; the display panel has a light emitting surface, and the light emitting surface includes a display area;

[0009] Printing a plurality of spaced-apart transparent glue droplets in the display area of ​​the light-emitting surface;

[0010] solidifying the plurality of transparent adhesive droplets to form a plurality of spaced-apart solidified adhesive layers;

[0011] An ink layer is printed at least in the display area of ​​the light emitting surface; the ink layer is located around the curing adhesive layer.

[0012] In a specific embodiment, the step of printing a plurality of spaced transparent glue droplets in the display area of ​​the light emitting surface includes:

[0013] A plurality of spaced-apart ultraviolet curing glue droplets are formed in the display area of ​​the light emitting surface by multi-color offset printing, screen printing, or inkjet printing.

[0014] In a specific embodiment, the step of solidifying the plurality of transparent adhesive droplets to form a plurality of spaced-apart solidified adhesive layers includes:

[0015] The plurality of ultraviolet light curing adhesive droplets are irradiated with ultraviolet light.

[0016] In a specific embodiment, the step of printing a plurality of spaced transparent glue droplets in the display area of ​​the light emitting surface includes:

[0017] A plurality of spaced-apart thermosetting glue droplets are formed in the display area of ​​the light emitting surface by multi-color offset printing, screen printing, or inkjet printing.

[0018] In a specific embodiment, the step of solidifying the plurality of transparent adhesive droplets to form a plurality of spaced-apart solidified adhesive layers includes:

[0019] The plurality of heat-curable adhesive droplets are heated.

[0020] In a specific embodiment, the display area includes a plurality of pixel areas arranged at intervals; the transparent glue droplet covers the plurality of pixel areas; and the number of the plurality of pixel areas covered by each transparent glue droplet is greater than or equal to 3 and less than or equal to 20.

[0021] In a specific embodiment, a contact angle between the transparent adhesive droplet and the light emitting surface is greater than or equal to 30° and less than or equal to 75°.

[0022] In a specific embodiment, before the step of printing the ink layer at least in the display area of ​​the light emitting surface, the method further includes:

[0023] The surface of the cured adhesive layer is treated to be ink-repellent; and / or the area of ​​the light-emitting surface not covered by the cured adhesive layer is treated to be ink-philic, so that the contact angle between the ink layer and the cured adhesive layer is greater than the contact angle between the ink layer and the light-emitting surface.

[0024] In a specific embodiment, the step of printing an ink layer at least in the display area of ​​the light emitting surface specifically includes:

[0025] The ink layer is formed around the cured adhesive layer by multi-color offset printing, screen printing or inkjet printing; the thickness of the ink layer is less than the thickness of the cured adhesive layer.

[0026] In a specific embodiment, before the step of printing a plurality of spaced transparent glue droplets in the display area of ​​the light emitting surface, the method further comprises:

[0027] The light-emitting surface is subjected to surface plasma treatment.

[0028] In a specific embodiment, after the step of printing the ink layer at least in the display area of ​​the light emitting surface, the method further comprises:

[0029] A decorative plate is provided, which has an opening; a surface of the decorative plate and the ink layer have patterns that match each other.

[0030] In a specific embodiment, after the step of providing the decorative plate, the method further includes:

[0031] A display panel printed with an ink layer is embedded in the opening so that the surface of the decorative plate is substantially flush with the surface of the ink layer away from the display panel.

[0032] To solve the above technical problems, another technical solution adopted in this application is to provide a method for preparing a display module, comprising:

[0033] Providing a substrate; the substrate has a light emitting surface, and the light emitting surface includes a display area;

[0034] Printing a plurality of spaced transparent glue droplets in the display area of ​​the light emitting surface;

[0035] solidifying the plurality of transparent adhesive droplets to form a plurality of spaced-apart solidified adhesive layers;

[0036] An ink layer is printed at least in the display area of ​​the light emitting surface; the ink layer is located around the cured adhesive layer;

[0037] The substrate having the cured adhesive layer and the ink layer is used to prepare a display panel; or the substrate having the cured adhesive layer and the ink layer is attached to the light emitting surface of a display panel.

[0038] In order to solve the above technical problems, another technical solution adopted in the present application is: providing a display module, which is manufactured by using the manufacturing method of the display module involved in any of the above items.

[0039] To solve the above technical problems, another technical solution adopted by the present application is to provide a display module, comprising:

[0040] Display panel; the display panel has a light emitting surface, and the light emitting surface includes a display area;

[0041] A plurality of spaced-apart curing adhesive layers are disposed in the display area of ​​the light emitting surface;

[0042] The ink layer is arranged in the display area of ​​the light emitting surface; the ink layer is located around the curing adhesive layer.

[0043] Beneficial effects of the embodiments of the present application: Different from the prior art, the present application provides a display module and a method for preparing the same; the method for preparing the display module comprises: providing a display panel; the display panel has a light-emitting surface, the light-emitting surface including a display area; then printing a plurality of spaced transparent glue droplets in the display area of ​​the light-emitting surface; then curing the plurality of transparent glue droplets to form a plurality of spaced cured glue layers; then printing an ink layer in the display area of ​​the light-emitting surface; the ink layer is located around the cured glue layer. This method prints transparent glue droplets in the display area and cures them to form a cured glue layer, so that the light of the display panel can be projected and displayed normally; and by printing an ink layer around the cured glue layer, the ink layer can form a pattern of a preset shape and color to decorate the display device. In addition, this method can realize the preparation of a display device with decorative function on a flat surface or a complex spatial curved surface according to different needs by directly printing the cured glue layer and the ink layer on the display panel.

Brief Description of the Drawings

[0044] FIG1 is a flow chart of a method for preparing a display module according to an embodiment of the present application;

[0045] FIG2 is a schematic structural diagram of a display panel provided in one embodiment of the present application;

[0046] FIG3 is a schematic structural diagram of the display panel after processing in step S2;

[0047] FIG4 is a schematic structural diagram of the display panel after processing in step S3;

[0048] FIG5 is a schematic structural diagram of the display panel after processing in step S4;

[0049] FIG6 is a schematic structural diagram of a display module provided in one embodiment of the present application;

[0050] FIG7 is a flow chart of a method for preparing a display module according to a second embodiment of the present application;

[0051] FIG8 is a schematic structural diagram of a substrate provided in a second embodiment of the present application;

[0052] FIG9 is a schematic structural diagram of the display panel after processing in step S2A;

[0053] FIG10 is a schematic structural diagram of the display panel after processing in step S3A;

[0054] FIG11 is a schematic structural diagram of the display panel after processing in step S4A;

[0055] FIG12 is a schematic structural diagram of the display panel after processing in step S5A;

[0056] FIG13 is a flow chart of a method for preparing a display module according to a third embodiment of the present application;

[0057] FIG14 is a schematic structural diagram of a substrate provided in a third embodiment of the present application;

[0058] FIG15 is a schematic structural diagram of the display panel after processing in step S2B;

[0059] FIG16 is a schematic structural diagram of the display panel after processing in step S3B;

[0060] FIG17 is a schematic structural diagram of the display panel after processing in step S4B;

[0061] FIG18 is a schematic structural diagram of the display panel after being processed in step S5B.

[0062] Explanation of the accompanying drawings: 1-display panel; 2-cured adhesive layer; 3-ink layer; 4-decorative plate; 10-light-emitting surface; 2a-transparent adhesive droplet; 11-first polarizer; 12-color filter substrate; 13-array substrate; 14-second polarizer; 15-substrate; 16-light-emitting layer; 101-display area; 102-non-display area; 131-pixel area; 132-non-pixel area; 151-substrate; 152-polarizing layer. [Specific implementation method]

[0063] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0064] The terms "first," "second," and "third" in this application are used only for descriptive purposes and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of such features. In the description of this application, "multiple" means at least two, for example, two, three, etc., unless otherwise specifically defined. All directional indications in the embodiments of this application (such as up, down, left, right, front, back...) are only used to explain the relative positional relationship, movement, etc. between the components under a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications also change accordingly. In addition, the terms "including" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or units that are inherent to these processes, methods, products, or devices.

[0065] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0066] In the related art, the display of a display device generally appears black when not displaying, which does not blend well with the surrounding decoration of the display device and affects the overall decorative design. In some display devices with decorative panel functions, their manufacturing costs are generally high and their flexibility is low, making them difficult to mass-produce.

[0067] Based on this, an embodiment of the present application provides a display module and a preparation method thereof. The preparation method of the display module can realize the preparation of a display module with decorative functions on a flat surface or a complex spatial curved surface according to different needs, and the display module can be matched with a decorative panel.

[0068] The present application is described in detail below with reference to the accompanying drawings and embodiments.

[0069] Referring to FIG. 1 , FIG. 1 is a flow chart of a method for manufacturing a display module according to a first embodiment of the present application. The present application provides a method for manufacturing a display module, which includes:

[0070] Step S1: providing a display panel; the display panel has a light emitting surface, and the light emitting surface includes a display area.

[0071] The display panel 1 may be a cathode ray tube (CRT) display panel, a liquid crystal display (LCD) panel, an inorganic light emitting diode (LED) display panel, or an organic light emitting diode (OLED) display panel. The display panel 1 may be a rigid display panel or a flexible display panel. The light emitting surface 10 may be a flat surface or a curved surface.

[0072] The LCD display panel includes an array substrate, a liquid crystal layer, an opposing substrate (such as a color film substrate) and a polarizer arranged in sequence. The light-emitting surface 10 of the LCD display panel can be the surface of the polarizer away from the array substrate. The LED display panel and the OLED display panel can include an array substrate light-emitting layer, a packaging cover plate and a polarizer arranged in sequence. The light-emitting surface 10 of the LED display panel and the OLED display panel can be the surface of the polarizer away from the array substrate. It can be understood that if there is no polarizer, the light-emitting surface 10 can be the surface of the opposing substrate or the packaging cover plate away from the array substrate. This embodiment is described by taking the LCD display panel as an example. The CRT display panel includes an emitting substrate and a packaging cover plate. The light-emitting surface 10 of the CRT display panel can be the surface of the packaging cover plate away from the emitting substrate.

[0073] In a specific embodiment, as shown in FIG2 , FIG2 is a schematic structural diagram of a display panel provided in an embodiment of the present application; the display panel 1 may include a first polarizer 11, a color filter substrate 12, an array substrate 13, and a second polarizer 14 stacked in sequence; a liquid crystal layer (not shown) is further provided between the color filter substrate 12 and the array substrate 13. In this embodiment, the light-emitting surface 10 of the display panel 1 is the surface of the side of the first polarizer 11 facing away from the color filter substrate 12. The light-emitting surface 10 may include a display area 101 and a non-display area 102; wherein the display area 101 is used to display an image, and the non-display area 102 is located on at least one side of the display area 101, and is used to set a driving circuit for driving the display area 101 to display. It can be understood that the light-emitting surface 10 may also not have the non-display area 102, that is, full-screen display.

[0074] As shown in FIG2 , the display area 101 of the light-emitting surface 10 may include a plurality of pixel areas 131 spaced apart from each other and non-pixel areas 132 surrounding the pixel areas 131. The plurality of pixel areas 131 are arranged in an array to form a display image of the display panel 1. Each pixel area 131 corresponds to a filter layer, such as a red filter layer, a green filter layer, or a blue filter layer. The non-pixel areas 132 correspond to a light-shielding layer, such as a black matrix layer.

[0075] Furthermore, a semi-transparent and semi-reflective layer (not shown) can be coated on the light-emitting surface 10 to improve the background reflectivity of the display panel 1; specifically, the semi-transparent and semi-reflective layer can be a silver-plated layer, and the thickness of the silver-plated layer is less than or equal to 20nm; for example, the thickness of the silver-plated layer can be any thickness such as 1nm, 5nm, 10nm, 15nm, 20nm, etc.

[0076] In a specific implementation process, step S1 may further include: cleaning the light emitting surface.

[0077] Specifically, the light emitting surface 10 of the display panel 1 can be cleaned by liquid flushing and / or compressed air blowing to remove pollutants such as particles, fibers, and oil stains that may exist on the surface of the display panel 1, so as to avoid these pollutants from adversely affecting subsequent processes and causing a decline in product quality.

[0078] After the step of cleaning the light emitting surface 10 , the method may further include: performing surface plasma treatment on the light emitting surface.

[0079] Specifically, a plasma generator can be used to generate plasma to perform surface treatment on the light-emitting surface 10, further cleaning and removing surface contaminants from the light-emitting surface 10. This can also improve the adhesion of the light-emitting surface 10, thereby regulating the contact angle between the subsequently printed transparent adhesive droplets 2a and the surface of the light-emitting surface 10. Furthermore, surface plasma treatment of the light-emitting surface 10 can effectively improve the surface properties of the light-emitting surface 10, increasing its wear resistance, corrosion resistance, and pollution resistance.

[0080] Step S2: printing a plurality of spaced transparent adhesive droplets in the display area of ​​the light emitting surface.

[0081] Specifically, as shown in FIG3 , which is a schematic diagram of the structure of the display panel after step S2 , multiple transparent adhesive droplets 2a are spaced apart within the display area 101 of the light-emitting surface 10 by multi-color offset printing, screen printing, or inkjet printing, with each transparent adhesive droplet 2a covering multiple pixel areas 131. It will be appreciated that while the transparent adhesive droplets 2a cover multiple pixel areas 131, they also cover the non-pixel areas 132 surrounding these pixel areas 131. After the transparent adhesive droplets 2a are subsequently cured to form a cured adhesive layer 2, light emitted from the pixel areas 131 can be projected externally through each cured adhesive layer 2. The light projected externally from the multiple cured adhesive layers 2 forms a display image.

[0082] Those skilled in the art will appreciate that if the number of pixel areas 131 covered by each transparent adhesive droplet 2a is too small, the preparation process for the transparent adhesive droplet 2a will be demanding and difficult to implement. Conversely, if the number of pixel areas 131 covered by each transparent adhesive droplet 2a is too large, the subsequently printed ink layer 3 will have insufficient coverage, reducing the decorative effect of the ink layer 3. Therefore, in this embodiment, preferably, the number of pixel areas 131 covered by each transparent adhesive droplet 2a is greater than or equal to 3 and less than or equal to 20, so that the display module can achieve both display and decorative effects. For example, the number of pixel areas 131 covered by each transparent adhesive droplet 2a can be any number, such as 3, 5, 10, 15, or 20.

[0083] The spacing between adjacent transparent adhesive droplets 2a is 0.15mm-1mm; for example, the spacing between adjacent transparent adhesive droplets 2a can be any value such as 0.15mm, 0.3mm, 0.5mm, 0.8mm, or 1mm. It is understood that if the spacing between adjacent transparent adhesive droplets 2a is too small, the manufacturing process requirements are high and difficult to implement. If the spacing between adjacent transparent adhesive droplets 2a is too large, the ink layer 3 covers too many pixel areas 131, resulting in less light projected from the pixel areas 131 to the outside world, affecting the display quality of the display module and even causing an incomplete display image.

[0084] In the specific implementation process, the transparent glue droplets 2a are set in the display area 101 by printing. The position of the transparent glue droplets 2a in the display area 101 can be flexibly adjusted according to design requirements to adapt to products with different requirements, effectively reducing production costs.

[0085] Furthermore, fluorine additives can be added to the transparent glue droplets 2a to improve the hydrophobic and oleophobic properties of the transparent glue droplets 2a, so that in the subsequent step of printing the ink layer 3, the ink can flow smoothly into the gaps of the cured glue layer 2, and the ink is prevented from remaining on the cured glue layer 2 and affecting the display effect. Specifically, the contact angle between the transparent glue droplets 2a and the light-emitting surface 10 is greater than or equal to 30° and less than or equal to 75°. This contact angle can make the transparent glue droplets 2a formed on the light-emitting surface 10 have an outward convex structure, that is, the surface of the transparent glue droplets 2a away from the light-emitting surface 10 is a curved surface, making it difficult for ink to adhere to the side of the transparent glue droplets 2a away from the light-emitting surface 10. Even if the ink adheres to the side of the transparent glue droplets 2a away from the light-emitting surface 10, it will slide along the slope of the curved surface and fall between the transparent glue droplets 2a.

[0086] In a specific implementation process, step S2 may specifically include: forming a plurality of spaced-apart UV-curable adhesive droplets in the display area of ​​the light-emitting surface by multi-color offset printing, screen printing, or inkjet printing.

[0087] Specifically, in some embodiments, the transparent adhesive droplets 2a can be UV-curable adhesive droplets. Multiple UV-curable adhesive droplets are placed in the display area 101 of the light-emitting surface 10 by multi-color offset printing, screen printing, or inkjet printing, with the contact angle between the UV-curable adhesive droplets and the light-emitting surface 10 being greater than or equal to 30° and less than or equal to 75°.

[0088] Alternatively, step S2 may further specifically include: forming a plurality of spaced-apart thermosetting adhesive droplets in the display area of ​​the light emitting surface by multi-color offset printing, screen printing, or inkjet printing.

[0089] Specifically, in other embodiments, the transparent adhesive droplets 2a may also be thermosetting adhesive droplets. In these embodiments, multiple thermosetting adhesive droplets are placed in the display area 101 of the light emitting surface 10 by multi-color offset printing, screen printing, or inkjet printing, and the contact angle between the thermosetting adhesive droplets and the light emitting surface 10 is greater than or equal to 30° and less than or equal to 75°.

[0090] Among them, the implementation methods of multi-color offset printing, screen printing and inkjet printing are the same or similar to those in the prior art. For details, please refer to the prior art and will not be repeated here.

[0091] Step S3: solidifying the plurality of transparent adhesive droplets to form a plurality of spaced-apart solidified adhesive layers.

[0092] As shown in FIG4 , FIG4 is a schematic diagram of the structure of the display panel after processing in step S3; in the specific implementation process, the multiple transparent glue droplets 2a in the display area 101 are solidified to form multiple solidified glue layers 2 set at intervals to determine the setting area of ​​the subsequently printed ink layer 3, so that the ink layer 3 can form a preset pattern to achieve a preset decorative effect.

[0093] In a specific implementation process, if the transparent glue droplets 2a are UV-curable glue droplets, step S3 may specifically include: irradiating a plurality of UV-curable glue droplets with UV light.

[0094] Specifically, in some embodiments, the transparent adhesive droplets 2a can be UV-curable adhesive droplets. UV light is irradiated onto multiple UV-curable adhesive droplets to cure them and form multiple spaced-apart cured adhesive layers 2. The thickness of the cured adhesive layer 2 can be 0.2 mm to 1 mm; for example, the thickness of the cured adhesive layer 2 can be any value such as 0.2 mm, 0.3 mm, 0.5 mm, 0.8 mm, or 0.1 mm.

[0095] If the transparent glue droplets 2a are thermosetting glue droplets, step S3 may further specifically include: heating the plurality of thermosetting glue droplets.

[0096] In other embodiments, the transparent adhesive droplets 2a may also be thermally curable adhesive droplets, and multiple thermally curable adhesive droplets are heated and cured to form multiple cured adhesive layers 2 spaced apart.

[0097] Furthermore, after the step of solidifying a plurality of transparent adhesive droplets to form a plurality of spaced-apart solidified adhesive layers, the method may further include: performing ink-repellent treatment on the surface of the solidified adhesive layer; and / or performing ink-philic treatment on the area of ​​the light-emitting surface not covered by the solidified adhesive layer.

[0098] During the specific implementation process, the surface of the cured adhesive layer 2 can be treated to be ink-repellent to ensure that the surface of the cured adhesive layer 2 has good ink-repellent properties, thereby preventing ink from adhering to the surface of the cured adhesive layer 2 and affecting the display effect. The method for treating the surface of the cured adhesive layer 2 with ink-repellent properties can be to deposit a micro-nano light-transmitting structure that is ink-repellent on the surface of the cured adhesive layer 2. Further, the exposed area of ​​the light-emitting surface 10 that is not covered by the cured adhesive layer 2 can be treated with ink-repellent properties to make the exposed area of ​​the light-emitting surface 10 have good adhesion, which is conducive to the adhesion of ink to the light-emitting surface 10. Specifically, the exposed area of ​​the light-emitting surface 10 that is not covered by the cured adhesive layer 2 can be treated with ink-repellent properties by corona discharge treatment, plasma treatment, oxidant chemical corrosion, coating with an antistatic agent, etc. Of course, in some other embodiments, other methods can also be used to perform ink-repellent treatment; for example, when the substrate is a glass-based substrate, the exposed area not covered by the cured adhesive layer 2 can be treated with ink-repellent properties by methods such as grease-sensitive treatment or acid corrosion treatment.

[0099] Step S4: printing an ink layer at least in the display area of ​​the light emitting surface; the ink layer is located around the cured adhesive layer.

[0100] As shown in Figure 5, Figure 5 is a schematic diagram of the structure of the display panel after the processing of step S4; in the specific implementation process, an ink layer 3 can be set in the gap between the multiple cured adhesive layers 2 in the display area 101 of the light-emitting surface 10; that is, the ink layer 3 is set in the exposed area of ​​the light-emitting surface 10 that is not covered by the cured adhesive layer 2, so that the ink layer 3 can form a pattern of a preset shape, so that the display module has a preset decorative effect. Of course, in other embodiments, the non-display area 102 of the light-emitting surface 10 can also be printed with an ink layer that matches the display area 101, so that the decorative pattern of the display area 101 and the decorative pattern of the decorative plate 4 can be better integrated together. The ink layer 3 can be a color ink, or it can include black and white ink, or it can include color ink and black and white ink to form a decorative pattern.

[0101] Specifically, the contact angle between the ink layer 3 and the cured adhesive layer 2 is greater than the contact angle between the ink layer 3 and the light emitting surface 10, so that the ink layer 3 is more easily attached to the light emitting surface 10 than to the cured adhesive layer 2. At the same time, because the ink layer 3 has poor adhesion to the cured adhesive layer 2, the ink layer 3 attached to the cured adhesive layer 2 can slide from the surface of the cured adhesive layer 2 to the area between the cured adhesive layers 2.

[0102] In a specific implementation process, step S4 may further include: forming an ink layer around the cured adhesive layer by multi-color offset printing, screen printing or inkjet printing; the thickness of the ink layer is smaller than the thickness of the cured adhesive layer.

[0103] Specifically, ink can be applied to the exposed areas of the light-emitting surface 10 not covered by the cured adhesive layer 2 by multi-color offset printing, screen printing, or inkjet printing, and then dried to form an ink layer 3. The thickness of the ink layer 3 is less than that of the cured adhesive layer 2 to prevent the surface of the cured adhesive layer 2 facing away from the light-emitting surface 10 from being excessively obscured by the ink layer 3, thereby affecting the display quality and image quality of the display module. The thickness of the ink layer 3 can range from 0.1 mm to 50 mm; for example, the thickness of the ink layer 3 can range from 0.1 mm, 10 mm, 20 mm, 40 mm, 50 mm, or any other value.

[0104] In a specific implementation process, after step S4, the method may further include: providing a decorative plate having an opening.

[0105] Refer to Figure 6, which is a schematic diagram of the structure of the display module provided by one embodiment of the present application. The decorative plate 4 can be a wooden board, a ceramic board or a glass substrate or other materials. The surface of the decorative plate 4 has a pattern that matches the ink layer 3. Specifically, the pattern on the surface of the decorative plate 4 has a color and / or graphic that matches the pattern of the ink layer 3, so that the decoration of the display panel 1 and the decorative plate 4 remain consistent. Specifically, the pattern can be set on the surface of the decorative plate 4 by multi-color offset printing, screen printing or inkjet printing, or a film material with the pattern can be prepared and then attached to the substrate to form the decorative plate 4.

[0106] After providing the decorative plate 4, the process may further include inserting a display panel printed with an ink layer into the opening so that a surface of the decorative plate is substantially flush with a surface of the ink layer facing away from the display panel. The surface of the decorative plate 4 with the pattern faces the same direction as the surface of the display panel 1 with the ink layer 3.

[0107] As shown in FIG6 , the display panel 1 processed in step S4 is embedded in the opening of the decorative panel 4 , and the surface of the decorative panel 4 is flush with the surface of the ink layer 3 away from the display panel 1 , so that the pattern on the surface of the decorative panel 4 matches the ink layer 3 to achieve the best decorative effect.

[0108] It can be understood that when a display device is manufactured using the display module manufactured in the first embodiment of the present application, a direct-type backlight module or an edge-type backlight module can be used.

[0109] Refer to Figures 7 to 12. Figure 7 is a flow chart of the method for preparing the display module provided in the second embodiment of the present application; Figure 8 is a schematic structural diagram of the substrate provided in the second embodiment of the present application; Figure 9 is a schematic structural diagram of the display panel after being processed by step S2A; Figure 10 is a schematic structural diagram of the display panel after being processed by step S3A; Figure 11 is a schematic structural diagram of the display panel after being processed by step S4A; and Figure 12 is a schematic structural diagram of the display panel after being processed by step S5A. The method for preparing the display module provided in the second embodiment of the present application is basically the same as the method for preparing the display module provided in the first embodiment of the present application, with the difference being that the method for preparing the display module provided in the second embodiment of the present application first prepares a cured adhesive layer 2 and an ink layer 3 on a substrate 15, and then uses the substrate 15 having the cured adhesive layer 2 and the ink layer 3 to prepare a display panel 1.

[0110] Specifically, the method for preparing the display module provided in the second embodiment includes:

[0111] Step S1A: providing a substrate; the substrate has a light emitting surface, and the light emitting surface includes a display area.

[0112] Specifically, the substrate 15 includes a base 151 and a polarizing layer 152 located on a surface of the base 151 , and the light emitting surface 10 is a surface of the polarizing layer 152 away from the base 151 .

[0113] Step S2A: Printing a plurality of spaced transparent adhesive droplets in the display area of ​​the light emitting surface.

[0114] Step S3A: solidifying the plurality of transparent adhesive droplets to form a plurality of spaced-apart solidified adhesive layers.

[0115] Step S4A: printing an ink layer at least in the display area of ​​the light emitting surface; the ink layer is located around the cured adhesive layer.

[0116] Step S5A: preparing a display panel using a substrate having a cured adhesive layer and an ink layer.

[0117] Specifically, the substrate 15 having the cured adhesive layer 2 and the ink layer 3 serves as a packaging cover, and is disposed on one side of the array substrate 13 having the light-emitting layer 16 ; the light-emitting layer 16 may include a plurality of LED or OLED light-emitting units.

[0118] Refer to Figures 13 to 18. Figure 13 is a flow chart of the method for preparing the display module provided in the third embodiment of the present application; Figure 14 is a schematic structural diagram of the substrate provided in the third embodiment of the present application; Figure 15 is a schematic structural diagram of the display panel after being processed by step S2B; Figure 16 is a schematic structural diagram of the display panel after being processed by step S3B; Figure 17 is a schematic structural diagram of the display panel after being processed by step S4B; and Figure 18 is a schematic structural diagram of the display panel after being processed by step S5B. The method for preparing the display module provided in the third embodiment of the present application is basically the same as the method for preparing the display module provided in the first embodiment of the present application, with the difference being that the method for preparing the display module provided in the third embodiment of the present application first prepares a cured adhesive layer 2 and an ink layer 3 on a substrate 15, and then adheres the substrate 15 having the cured adhesive layer 2 and the ink layer 3 to the light-emitting side of the display panel 1.

[0119] Specifically, the method for preparing the display module provided in the third embodiment includes:

[0120] Step S1B: providing a substrate; the substrate has a light emitting surface, and the light emitting surface includes a display area.

[0121] Specifically, the substrate 15 may be a polymer flexible layer such as PI or a glass plate.

[0122] Step S2B: Printing a plurality of spaced transparent adhesive droplets in the display area of ​​the light emitting surface.

[0123] Step S3B: solidifying the plurality of transparent adhesive droplets to form a plurality of spaced-apart solidified adhesive layers.

[0124] Step S4B: printing an ink layer at least in the display area of ​​the light emitting surface; the ink layer is located around the cured adhesive layer.

[0125] Step S5B: Laminating the substrate having the cured adhesive layer and the ink layer to the light emitting surface of the display panel.

[0126] The present application provides a display module and a method for preparing the same. The method comprises: providing a display panel 1; the display panel 1 having a light-emitting surface 10, the light-emitting surface 10 including a display area 101; then printing a plurality of spaced transparent glue droplets 2a in the display area 101 of the light-emitting surface 10; then curing the plurality of transparent glue droplets 2a to form a plurality of spaced cured glue layers 2; then printing an ink layer 3 in the display area 101 of the light-emitting surface 10; the ink layer 3 being located around the cured glue layer 2. This method prints transparent glue droplets 2a in the display area 101 and cures them to form a cured glue layer 2, so that light from the display panel 1 can be projected and displayed normally; and printing the ink layer 3 around the cured glue layer 2 enables the ink layer 3 to form a pattern of a preset shape and color to decorate the display module. In addition, this method can achieve the preparation of a display module with decorative functions on a flat surface or a complex spatial curved surface according to different requirements by directly printing the cured glue layer 2 and the ink layer 3 on the display panel 1.

[0127] The present application provides a display module, which is manufactured using the display module preparation method provided in the above embodiment. The display module can be a product or component with display function such as LCD, sub-millimeter light-emitting diode (Mini LED), etc. As shown in Figure 6, the display module also includes optical adjustment controls, diffusers, reflectors, circuit boards, backlight panels and other structures. These structures are the same or similar to the relevant structures of existing display modules. For details, please refer to the prior art and will not be repeated here.

[0128] The present application provides a display module, which includes a display panel 1, a plurality of spaced-apart curing adhesive layers 2, and an ink layer 3. The display panel 1 has a light-emitting surface 10, and the light-emitting surface 10 includes a display area 101; a plurality of spaced-apart curing adhesive layers 2 are arranged in the display area 101 of the light-emitting surface 10; an ink layer 3 is arranged in the display area 101 of the light-emitting surface 10; and the ink layer 3 is located around the curing adhesive layer 2. The display module prints transparent adhesive droplets 2a in the display area 101 and solidifies to form a curing adhesive layer 2, so that the light of the display panel 1 can be projected and displayed normally; and the ink layer 3 is printed around the curing adhesive layer 2, so that the ink layer 3 can form a pattern of a preset shape and color to decorate the display module. In addition, the method can realize the preparation of a display module with decorative function on a flat surface or a complex spatial curved surface according to different needs by directly printing the curing adhesive layer 2 and the ink layer 3 on the display panel 1.

[0129] It will be apparent to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present application is defined by the appended claims, not the foregoing description, and all variations within the meaning and scope of the appended claims are intended to be included herein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0130] The above is only an implementation method of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A method for preparing a display module, wherein: include: providing a display panel; The display panel has a light emitting surface, and the light emitting surface includes a display area; Printing a plurality of spaced transparent glue droplets in the display area of ​​the light emitting surface; Solidifying the plurality of transparent adhesive droplets to form a plurality of spaced-apart solidified adhesive layers; An ink layer is printed at least in the display area of ​​the light emitting surface; the ink layer is located around the curing glue layer.

2. The method for preparing a display module according to claim 1, wherein: The step of printing a plurality of spaced transparent glue droplets in the display area of ​​the light emitting surface comprises: A plurality of spaced ultraviolet light curing glue droplets are formed in the display area of ​​the light emitting surface by multi-color offset printing, screen printing, or inkjet printing.

3. The method for preparing a display module according to claim 2, wherein: The step of curing the plurality of transparent adhesive droplets to form a plurality of spaced-apart cured adhesive layers comprises: The ultraviolet light is irradiated onto a plurality of the ultraviolet light curing glue droplets.

4. The method for preparing a display module according to claim 1, wherein: The step of printing a plurality of spaced transparent glue droplets in the display area of ​​the light emitting surface comprises: A plurality of spaced thermosetting glue droplets are formed in the display area of ​​the light emitting surface by multi-color offset printing, screen printing, or inkjet printing.

5. The method for preparing a display module according to claim 4, wherein: The step of curing the plurality of transparent adhesive droplets to form a plurality of spaced-apart cured adhesive layers comprises: The plurality of heat curing adhesive droplets are heated.

6. The method for preparing a display module according to claim 1, wherein: The display area includes a plurality of pixel areas arranged at intervals; the transparent glue droplet covers the plurality of pixel areas; and the number of the plurality of pixel areas covered by each transparent glue droplet is greater than or equal to 3 and less than or equal to 20.

7. The method for preparing a display module according to claim 1, wherein: The contact angle between the transparent glue droplet and the light emitting surface is greater than or equal to 30° and less than or equal to 75°.

8. The method for preparing a display module according to claim 1, wherein: Before the step of printing the ink layer at least in the display area of ​​the light emitting surface, the method further comprises: The surface of the cured adhesive layer is treated to be ink-repellent; and / or the area of ​​the light-emitting surface not covered by the cured adhesive layer is treated to be ink-philic, so that the contact angle between the ink layer and the cured adhesive layer is greater than the contact angle between the ink layer and the light-emitting surface.

9. The method for preparing a display module according to claim 1, wherein: The step of printing an ink layer at least in the display area of ​​the light emitting surface specifically includes: The ink layer is formed around the curing adhesive layer by multi-color offset printing, screen printing or inkjet printing; the thickness of the ink layer is less than the thickness of the curing adhesive layer.

10. The method for preparing a display module according to any one of claim 1, wherein: Before the step of printing a plurality of spaced transparent glue droplets in the display area of ​​the light emitting surface, the method further comprises: The light emitting surface is subjected to surface plasma treatment.

11. The method for preparing a display module according to claim 1, wherein: After the step of printing the ink layer at least in the display area of ​​the light emitting surface, the method further comprises: A decorative plate is provided, which has an opening; a surface of the decorative plate and the ink layer have patterns that match each other.

12. The method for preparing a display module according to claim 11, wherein: The step of providing the decorative plate further includes: The display panel printed with the ink layer is embedded in the opening, so that the surface of the decorative plate is substantially flush with the surface of the ink layer away from the display panel.

13. A method for preparing a display module, wherein: include: providing a substrate; The substrate has a light emitting surface, and the light emitting surface includes a display area; Printing a plurality of spaced transparent glue droplets in the display area of ​​the light emitting surface; Solidifying the plurality of transparent adhesive droplets to form a plurality of spaced-apart solidified adhesive layers; Printing an ink layer at least in the display area of ​​the light emitting surface; The ink layer is located around the curing glue layer; The substrate having the curing adhesive layer and the ink layer is used to prepare a display panel; or the substrate having the curing adhesive layer and the ink layer is attached to a light emitting surface of a display panel.

14. A display module, wherein: The display module is prepared by the method for preparing the display module according to any one of claims 1 to 13.

15. A display module, wherein: include: Display panel; The display panel has a light emitting surface, and the light emitting surface includes a display area; A plurality of intervally arranged curing adhesive layers are arranged in the display area of ​​the light emitting surface; The ink layer is arranged in the display area of ​​the light emitting surface; the ink layer is located around the curing glue layer.

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