Display module

Abstract

The present application discloses a display module. The display module comprises: a curved display panel, the curved display panel including multiple curved regions; at least one circuit board disposed on the non-display side of the curved display panel, the at least one circuit board disposed in N of the multiple curved regions, where the N curved regions correspond to the first N curvatures of the multiple curved regions arranged in ascending order of curvature; N is an integer greater than or equal to 1. Using this display, the circuit boards can be arranged according to the curvature of the display panel, with the circuit boards disposed in the curved regions with smaller curvatures. This effectively reduces the rebound force of the circuit boards when the display panel bends, reduces the risk of components peeling off from the circuit boards, and ensures the display quality of the display module.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display module. Background Art

[0002] With the development of display technology, organic light-emitting diode (OLED) displays with the advantages of high contrast, high definition, and flexibility have been widely used. Based on the flexible and bendable characteristics of OLED, curved display technology has developed accordingly, and users have an increasing demand for curved screen products, especially large-size curved screen products with a gradient curvature.

[0003] However, large-size, gradient curved screens have problems such as high temperature rise and component peeling after bending, which affects the display effect of the display. Summary of the Invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a display module that can reduce the rebound force of the circuit board when the display panel is bent, reduce the risk of components on the circuit board peeling off, and ensure the display effect of the display module.

[0005] In a first aspect, the present application provides a display module. The display module includes: a curved display panel, the curved display panel including a plurality of curved areas;

[0006] At least one circuit board is arranged on the non-display surface side of the curved display panel, and the at least one circuit board is arranged in N curved areas among the multiple curved areas, where the N curved areas are the N curved areas corresponding to the first N curvatures after the curvatures of the multiple curved areas are arranged in ascending order; N is an integer greater than or equal to 1.

[0007] In conjunction with the first aspect, in one possible implementation, at least one circuit board includes a control circuit board and a source circuit board, the control circuit board being disposed in M ​​of the N bending regions, where the M bending regions correspond to the first M curvatures of the N bending regions arranged in ascending order of curvature; M is an integer greater than or equal to 1 and less than N.

[0008] The source circuit board is arranged at the remaining positions in the N bending regions except the position occupied by the control circuit board.

[0009] In combination with the first aspect, in a possible implementation, the bendability of the circuit board is related to the curvature of a corresponding bending area of ​​the circuit board.

[0010] In combination with the first aspect, in one possible implementation, if the curvature of the curved area corresponding to the circuit board is greater than a preset threshold, the circuit board is a flexible circuit board; if the curvature of the curved area corresponding to the circuit board is less than the preset threshold, the circuit board is a rigid circuit board.

[0011] In combination with the first aspect, in a possible implementation, the lengths of the control circuit boards in different bending regions are different, and the lengths of the source circuit boards in different bending regions are different.

[0012] In combination with the first aspect, in one possible implementation, if the curvature of the curved area corresponding to the first control circuit board is smaller than the curvature of the curved area corresponding to the second control circuit board, the length of the first control circuit board is greater than the length of the second control circuit board; if the curvature of the curved area corresponding to the first source circuit board is smaller than the curvature of the curved area corresponding to the second source circuit board, the length of the first source circuit board is greater than the length of the second source circuit board.

[0013] In combination with the first aspect, in one possible implementation, a contoured member is arranged between the curved display panel and the circuit board, the side of the contoured member close to the curved display panel is a curved structure, and the surface parameters of the curved structure are related to the curvature of the corresponding curved area of ​​the circuit board on the curved display panel.

[0014] In combination with the first aspect, in a possible implementation, the display module further includes a cooling mechanism, and the cooling mechanism is disposed on a side of the circuit board away from the curved display panel.

[0015] In combination with the first aspect, in a possible implementation, the cooling mechanism includes a cooler and a bracket, the bracket is used to support the cooler on a side of the circuit board away from the curved display panel, and both ends of the bracket cross the circuit board and are connected to the curved display panel.

[0016] In combination with the first aspect, in a possible implementation, the cooling mechanism also includes a first connecting member, a second connecting member is provided on the side of the curved display panel close to the cooling mechanism, through holes are provided at both ends of the bracket, and the second connecting member has a fixing cavity matching the through hole. When the first connecting member passes through the through hole and is inserted into the fixing cavity of the second connecting member, the cooling mechanism is connected to the curved display panel.

[0017] In combination with the first aspect, in a possible implementation manner, the size of the first connecting member is positively correlated with the curvature of the curved area corresponding to the first connecting member.

[0018] An embodiment of the present application provides a display module comprising a curved display panel and at least one circuit board disposed on a non-display surface of the curved display panel. The curved display panel includes multiple curved regions, and the at least one circuit board is disposed in N of the multiple curved regions, where the N curved regions correspond to the first N curvatures of the multiple curved regions arranged in ascending order of curvature. In this embodiment of the present application, the circuit boards are arranged according to the curvature of the display panel, and are disposed in the curved regions with smaller curvatures. This effectively reduces the rebound force of the circuit boards when the display panel bends, reduces the risk of components peeling off from the circuit boards, and ensures the display quality of the display module. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0020] Figure 1 Schematic diagram of the curvature of a curved screen with a gradually changing curvature in one embodiment;

[0021] Figure 2 A schematic diagram of temperature distribution of a curved screen in one embodiment;

[0022] Figure 3 A rear view of a display module in one embodiment;

[0023] Figure 4 A schematic cross-sectional view showing a module in one embodiment;

[0024] Figure 5 Another rear view of the display module in one embodiment;

[0025] Figure 6 A top view of a display module in one embodiment;

[0026] Figure 7 A schematic structural diagram of a profiling member in one embodiment;

[0027] Figure 8 Another top view of a display module according to one embodiment;

[0028] Figure 9 Another rear view of the display module in one embodiment;

[0029] Figure 10 FIG. 1 is another structural diagram of a display module in an embodiment. DETAILED DESCRIPTION

[0030] The present application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the relevant invention and are not intended to limit the invention. It should also be noted that, for ease of description, only portions relevant to the invention are shown in the accompanying drawings.

[0031] It should be noted that, unless there is a conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments. Furthermore, the term "and / or" herein is merely a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, or B exists alone.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0034] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "fixed," and the like should be understood in a broad sense. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0035] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element.

[0036] With the development of display technology, OLED, with its advantages of high contrast, high definition, and flexibility, has been widely used. Based on the flexibility and bendability of OLED, curved display technology has also developed accordingly. Users are increasingly demanding curved screen products, especially large-size curved screens with a gradient curvature. Among them, large-size curved screens with a gradient curvature can refer to those with a size greater than 20 inches.

[0037] However, due to the curvature gradient problem, the curved screen has the problem of uneven curvature. The circuit board in the area with larger curvature of the curved screen has a larger degree of bending and elasticity when the display panel is bent, which easily causes the problem of circuit board components peeling off; Figure 1 As shown in the figure, the curvature of curved area A of the curved screen is smaller than that of curved area B, so the curvature 1 / R1 of curved area A is smaller than the curvature 1 / R2 of curved area B; where R1 is the curvature radius of curved area A, and R2 is the curvature radius of curved area B. Moreover, due to its large size, the cross-pressure of the display panel is large, which makes the heat generation power of the display panel higher, as shown in the figure. Figure 2 As shown, large-scale, gradient-curved screens experience localized overheating, with the highest temperature rise concentrated in the circuit board component area. These high temperature rises and component peeling can affect the display quality.

[0038] The present application proposes a display module that can solve the above-mentioned problems of device peeling and excessive temperature rise, and improve the display effect of the display module.

[0039] In one embodiment, a display module is provided, which includes a curved display panel 10, the curved display panel 10 including multiple curved areas; at least one circuit board 20 is arranged on the non-display side of the curved display panel 10, and the at least one circuit board 20 is arranged in N curved areas among the multiple curved areas, and the N curved areas are N curved areas corresponding to the first N curvatures of the multiple curved areas after the curvatures are arranged in ascending order.

[0040] In embodiments of the present application, a curved display panel can be divided into multiple curved regions, each of which can accommodate a circuit board. The curvature of each curved region can then be determined, and the circuit board can be placed in the curved region with the smallest curvature. For example, the multiple curved regions can be arranged in ascending order of curvature, and the circuit board can be placed in the curved region corresponding to the first N curvatures in the arrangement.

[0041] Wherein, N is an integer greater than or equal to 1. When at least one circuit board can be simultaneously arranged in a curved region with the smallest curvature, N is 1; when at least one circuit board cannot be simultaneously arranged in a curved region, N is greater than 1.

[0042] Taking the curved display panel divided into two curved areas as an example, at least one circuit board can be placed in the curved area with a relatively small curvature until the remaining space in the curved area can no longer accommodate circuit boards, and then the remaining circuit boards can be placed in another curved area with a relatively large curvature. Figure 3 As shown, a back view of a display module is provided. The display module includes three circuit boards. The curved display panel includes a curved area A and a curved area B. When the curvature of curved area A is smaller than that of curved area B, two circuit boards can be placed in curved area A. In this case, if there is no room for additional circuit boards in curved area A, the remaining circuit board is placed in curved area B. The circuit boards 20 and the circuit boards 20 and the curved display panel 10 are connected via a chip on film (COF) 23 to achieve signal transmission.

[0043] In one possible implementation, Figure 4 As shown, a cross-sectional schematic diagram of a display module is provided, wherein the curved display panel 10 may include a stacked support structure Bracket (i.e., BKT), Pressure sensitive adhesive (PSA), Back Film (i.e., BF), Panel (i.e., PNL), Polarizer (i.e., POL), Light control film (LCF), Optical clear adhesive (OCA), and Cover glass (i.e., CG). The thickness of CG may be in the range of 1.1-1.3 mm, the thickness of OCA may be 0.25 mm, the thickness of LCF may be 0.26 mm, the thickness of POL may be 0.191 mm, the thickness of PNL may be 0.049 mm, the thickness of BF may be 0.1 mm, and the thickness of PSA may be 0.05 mm.

[0044] Among them, the thickness of BKT can be 0.3mm, which is thinner than the commonly used BKT. While playing a supporting role, it can reduce the rebound force when the display panel is bent, thereby reducing the risk of component peeling on the circuit board; BKT can be aluminum materials such as GL57 and GM55, which have better bendability and higher yield strength.

[0045] In this embodiment, the circuit board 20 (PCB in the figure) can be bonded to the display panel's back-knitted casing (BKT) using PSA. The circuit board can be 0.5mm or 0.6mm thick, which is thinner than conventional circuit boards. This reduces the rebound force when the display panel is bent, thereby reducing the risk of components peeling off the circuit board. The circuit board can be connected to the PNL using a COF.

[0046] An embodiment of the present application provides a display module comprising a curved display panel and at least one circuit board disposed on a non-display surface of the curved display panel. The curved display panel includes multiple curved regions, and the at least one circuit board is disposed in N of the multiple curved regions, where the N curved regions correspond to the first N curvatures of the multiple curved regions arranged in ascending order of curvature. The embodiment of the present application arranges the circuit boards according to the curvature of the display panel, placing the circuit boards in the curved regions with smaller curvatures. This effectively reduces the rebound force of the circuit boards when the display panel bends, reduces the risk of components peeling off from the circuit boards, and ensures the display quality of the display module.

[0047] In one embodiment, at least one circuit board 20 includes a control circuit board 21 and a source circuit board 22. The control circuit board 21 is arranged in M ​​bending areas among the N bending areas, and the M bending areas are the M bending areas corresponding to the first M curvatures after the curvatures are arranged in ascending order; M is an integer greater than 1 and less than N; the source circuit board 22 is arranged in the remaining available positions in the N bending areas except the position occupied by the control circuit board 21.

[0048] In the embodiment of the present application, the circuit boards can be divided into a control circuit board 21 and a source circuit board 22 according to their functionality. The components on the control circuit board 21 are mainly used to realize the logic control function of the display module, and the components on the source circuit board 22 are mainly used for signal transmission function.

[0049] Compared to the source circuit board 22, the components on the control circuit board 21 require higher stability. Therefore, the control circuit board 21 can be placed in the N curved areas with the smallest curvature, while the source circuit board 22 can be placed in the remaining available locations in the N curved areas, excluding the location occupied by the control circuit board. For example, the N curved areas can be arranged from smallest to largest in curvature, with the control circuit board 21 placed in the curved area corresponding to the first M curvatures, while the source circuit board 22 can be placed in the remaining curved areas excluding the M curved areas. Alternatively, if there is remaining space in the curved area with the curvature arranged Mth, the source circuit board 22 can also be placed in that curved area.

[0050] Wherein, M is an integer greater than or equal to 1 and less than or equal to N. When at least one control circuit board 21 can be simultaneously disposed in a curved region with the smallest curvature, M is 1; when at least one control circuit board 21 cannot be simultaneously disposed in a curved region, M is greater than 1 and less than or equal to N.

[0051] like Figure 5As shown, a back view of another display module is provided. This example illustrates a display module comprising a control circuit board (i.e., TCON-PCB) and two source circuit boards (i.e., Source PCB1 and Source PCB2), and a curved display panel comprising two curved regions A and B, where the curvature of curved region A is smaller than that of curved region B. A control circuit board 21 and a source circuit board 22 can be placed in curved region A. If there is no room for additional circuit boards in curved region A, the other source circuit board 22 can be placed in curved region B. The control circuit board 21, source circuit board 22, and curved display panel 10 are connected via a COF 23 to enable signal transmission.

[0052] At least one circuit board in a display module provided in an embodiment of the present application includes a control circuit board and a source circuit board. The control circuit board is disposed in M ​​of N curved regions, where the M curved regions correspond to the first M curvatures of the N curved regions arranged in ascending order of curvature. The source circuit board is disposed in the remaining available positions within the N curved regions, excluding the position occupied by the control circuit board. In an embodiment of the present application, the circuit boards are arranged according to the stability requirements of the components on the circuit boards. The control circuit board, which has a higher stability requirement, is disposed in the curved region with the smaller curvature among the N curved regions. This effectively reduces the rebound force of the control circuit board when the display panel bends, reduces the risk of components on the control circuit board peeling off, and ensures the display quality of the display module.

[0053] In one embodiment, the bendability of the circuit board is related to the curvature of the corresponding bending area of ​​the circuit board.

[0054] In the embodiments of the present application, different circuit boards have different bendabilities. For example, circuit boards can be divided into flexible printed circuits (FPCs) and rigid printed circuits based on their bendability. Compared to rigid printed circuits, flexible printed circuits have better bendability and a lower risk of components peeling off from the printed circuit boards. Therefore, a circuit board with less flexibility can be set in a curved area with a smaller curvature to prevent the circuit board with less flexibility from bending too much with the curved display panel, thereby reducing the risk of components peeling off from the printed circuit board. A circuit board with greater flexibility can be set in a curved area with a larger curvature to prevent the circuit board from having excessive elastic force when bending with the curved display panel, thereby reducing the risk of components peeling off from the printed circuit board.

[0055] In one embodiment, if the curvature of the curved area corresponding to the circuit board is greater than a preset threshold, the circuit board is a flexible circuit board; if the curvature of the curved area corresponding to the circuit board is less than the preset threshold, the circuit board is a rigid circuit board.

[0056] The preset threshold may be 7 mm.

[0057] In the embodiments of the present application, when the curvature of the curved region is greater than a preset threshold, the curvature of the curved region is high, and the risk of components peeling off the circuit board is high. Therefore, the circuit board in this curved region can be a flexible circuit board to effectively reduce the rebound force when the curved display panel is bent, thereby effectively reducing the risk of components peeling off the circuit board. When the curvature of the curved region is less than the preset threshold, the risk of components peeling off the circuit board in this curved region is relatively low. Therefore, the circuit board in this curved region can be a rigid circuit board, which can ensure the stability of the components on the circuit board while reducing the cost of the display module.

[0058] When the curvature of the curved area is equal to a preset threshold, the circuit board in the curved area can be a flexible circuit board or a rigid circuit board. For example, based on component stability considerations, the circuit board in the curved area can be a flexible circuit board, while based on cost considerations, the circuit board in the curved area can be a rigid circuit board.

[0059] As above Figure 5 As shown, when the curvatures of the bending area A and the bending area B are both less than the preset threshold, TCON-PCB, Source PCB1 and Source PCB2 are all rigid circuit boards; when the curvatures of the bending area A are both less than the preset threshold and the curvatures of the bending area B are both greater than the preset threshold, TCON-PCB and Source PCB1 are rigid circuit boards, and Source PCB2 is a flexible circuit board; when the curvatures of the bending area A and the bending area B are both greater than the preset threshold, TCON-PCB, Source PCB1 and Source PCB2 are all flexible circuit boards.

[0060] The bendability of the circuit board in the display module provided by the embodiment of the present application is related to the curvature of the corresponding bending area of ​​the circuit board. When the curvature of the corresponding bending area of ​​the circuit board is greater than a preset threshold, the circuit board is a flexible circuit board; when the curvature of the corresponding bending area of ​​the circuit board is less than the preset threshold, the circuit board is a rigid circuit board. The embodiment of the present application selects different types of circuit boards based on the curvature of the bending area. When the curvature is large, a flexible circuit board is selected, which effectively reduces the rebound force of the circuit board when it bends with the curved display panel, thereby effectively reducing the risk of components on the circuit board peeling off. When the curvature is small, a rigid circuit board is selected, which can reduce the cost of the display module while ensuring the stability of the components on the circuit board.

[0061] In one embodiment, the lengths of the control circuit boards in different bending regions are different, and the lengths of the source circuit boards in different bending regions are different.

[0062] In the embodiments of the present application, due to different components and their layouts, the sizes of the different circuit boards vary. Specifically, at least one control circuit board has a different length, and at least one source circuit board has a different length. Furthermore, the lengths of the same type of circuit boards can vary depending on the bend, specifically, the lengths of the control circuit boards and source circuit boards can vary depending on the bend.

[0063] Since a shorter circuit board has a smaller span when bent with a curved display panel, the rebound force is smaller and the risk of components peeling off on the circuit board is smaller, when the same circuit board is arranged in multiple curved areas, the circuit board with a relatively shorter length can be placed in the curved area with a larger curvature.

[0064] Taking two circuit boards of the same type as an example, if the curvature of the curved area corresponding to the first control circuit board is smaller than the curvature of the curved area corresponding to the second control circuit board, the length of the first control circuit board is greater than the length of the second control circuit board; if the curvature of the curved area corresponding to the first source circuit board is smaller than the curvature of the curved area corresponding to the second source circuit board, the length of the first source circuit board is greater than the length of the second source circuit board.

[0065] For example, as above Figure 5 As shown, the length L2 of the Source PCB2 is smaller than the length L1 of the Source PCB1 . Therefore, the Source PCB2 can be disposed in the curved region B with a larger curvature.

[0066] The following Figure 5 The parameters of the components are further defined:

[0067] Since the Source PCB1 is a special-shaped structure with one end protruding, the length L3 of the TCON-PCB can be within the range of 1 / 2L1-2 / 3L1 to avoid the TCON-PCB and Source PCB1 being too close or overlapping.

[0068] L4 + e1 ≤ 3 / 4e3, where L4 is the width of the TCON-PCB, e1 is the width of the Source PCB1, and e3 is the width of the display module. This dimension is used to reserve space in the width direction of the display module for packaging.

[0069] The width e1 of the Source PCB1 and the width e2 of the Source PCB2 may be the same, ie, e1 = e2.

[0070] The curvature a of the curved region A having a relatively small curvature is less than 5 mm.

[0071] L1 = n*L5 + (n-1)d or L2 = n*L5 + (n-1)d, where n is the number of COFs connected on Source PCB1 or Source PCB2, L5 is the COF width, and d is the distance between the two COFs. While ensuring the normal layout of components on the Source PCB, the distance d between the two COFs can be reduced. For example, the minimum value feasible within the process can be used to reduce the length of the Source PCB. This reduces the span of the Source PCB when it bends with the curved display panel, thereby reducing the rebound force on the Source PCB and the risk of component peeling off the Source PCB.

[0072] In the display module provided by the present embodiment, the control circuit boards in different curved regions have different lengths, and the source circuit boards in different curved regions have different lengths. This embodiment arranges the circuit boards according to their lengths, placing shorter circuit boards of the same type in curved regions with greater curvature. This prevents excessive rebound forces in the curved regions when the display panel bends, thereby reducing the risk of component peeling from the circuit boards.

[0073] In one embodiment, Figure 6 As shown, a contoured member 30 is provided between the curved display panel 10 and the circuit board 20. The side of the contoured member 30 close to the curved display panel 10 is a curved structure, and the surface parameters of the curved structure are related to the curvature of the corresponding curved area of ​​the circuit board 20 on the curved display panel 10.

[0074] In the embodiment of the present application, a contoured member 30 may be provided between the curved display panel 10 and the circuit board 20. Figure 7 As shown, the side of the contoured member 30 closest to the curved display panel 10 can be attached with a protective film. The side of the contoured member 30 closest to the circuit board 20 has an adhesive layer (i.e., an adhesive). The side of the adhesive layer away from the contoured member 30 can be attached with an adhesive protective film. The thickness of the protective film and the adhesive protective film can be within a range of 0.05-0.08 mm. The adhesive layer is used to bond the contoured member 30 to the circuit board 20 and can be within a range of 0.05-0.25 mm.

[0075] The side of the profiling member 30 closest to the curved display panel 10 is a curved structure. The curvature parameters of this curved structure are correlated with the step parameters of the corresponding curved region of the circuit board on the curved display panel 10. This ensures that the curved shape of the curved structure matches the shape of the corresponding curved region. Consequently, when the curved display panel is bent, the curved structure of the profiling member 30 evenly adheres to the curved display panel. The colloid between the profiling member 30 and the circuit board 20 is evenly distributed, effectively ensuring the adhesion of the adhesive layer and the stability of the circuit board 20.

[0076] The side of the contour member 30 close to the circuit board 20 is flat, and the circuit board 20 is arranged on the flat side of the contour member 30. When the curved display panel 10 is bent, the contour member 30 can effectively reduce the degree of bending of the circuit board 20, thereby effectively reducing the rebound force of the circuit board 20 and reducing the risk of peeling of components on the circuit board 20.

[0077] The profiling member 30 may be made of plastic, for example, polyphenylene sulfide (PPS), high-temperature nylon, etc., which has the characteristics of high temperature resistance and good adhesion. The thickness of the profiling member 30 at its thinnest position may be within the range of 1-3 mm.

[0078] It should be noted that one circuit board 20 corresponds to one contour piece 30 .

[0079] In the display module provided in the embodiments of the present application, a contoured member is disposed between the curved display panel and the circuit board. The side of the contoured member closest to the curved display panel is a curved structure, and the curvature parameters of the curved structure are correlated with the curvature of the corresponding curved area of ​​the circuit board on the curved display panel. The contoured member in the embodiments of the present application effectively reduces the degree of bending of the circuit board when the curved display panel is bent, thereby effectively reducing the rebound force of the circuit board and the risk of components peeling off the circuit board.

[0080] In one embodiment, Figure 8 and Figure 9 As shown, the display module also includes a cooling mechanism 40, which is disposed on the side of the circuit board 20 away from the curved display panel 10. The cooling mechanism 40 includes a cooler 41 and a bracket 42. The bracket 42 is used to support the cooler 41 on the side of the circuit board 20 away from the curved display panel 10. The two ends of the bracket 42 span the circuit board 20 and are connected to the curved display panel 10.

[0081] in, Figure 8 To show the top view of the module, Figure 9 The back view of the display module.

[0082] In the embodiment of the present application, the above Figure 2 It can be seen that the large-size gradient curved screen has the problem of excessive temperature at the location where the circuit board is set. Therefore, a cooling mechanism 40 can be set on the side of the circuit board 20 away from the curved display panel 10. The cooling mechanism 40 includes a cooler 41 and a bracket 42. The two ends of the bracket 42 cross the circuit board 20 and are connected to the curved display panel 10, and the cooler 41 is supported on the side of the circuit board 20 away from the curved display panel 10, so that the position of the cooler 41 matches the position of the circuit board 20, thereby achieving precise cooling of the circuit board 20 by the cooling mechanism 40.

[0083] Among them, both ends of the bracket 42 cross the circuit board 20 and are connected to the BKT of the curved display panel 10; a cooling mechanism 40 can include two coolers 41, thereby expanding the cooling range of the cooling mechanism 40 and ensuring the cooling effect; the cooler 41 can be a fan.

[0084] The following describes the dimensional parameters of the various components of the cooling mechanism 40:

[0085] The distance between the two coolers 41 in the cooling mechanism 40 is greater than 20 mm to ensure that the cooling range of the cooler 41 can cover most areas of the circuit board 20 and ensure the cooling effect.

[0086] L6>2.5L7, where L6 is the length of the non-bending area on the bracket 42 where the cooler 41 is located, and L7 is the diameter of the cooler 41 .

[0087] The distance H1 between the cooler 41 and the circuit board 20 may be in the range of 6-20 mm.

[0088] like Figure 10 As shown, the cooling mechanism 40 also includes a first connecting member 43, and a second connecting member 44 is provided on the side of the curved display panel 10 close to the cooling mechanism 40. Through holes are provided at both ends of the bracket 42, and the second connecting member 44 has a fixing cavity matching the through hole. When the first connecting member 43 passes through the through hole and is inserted into the fixing cavity of the second connecting member 44, the cooling mechanism 40 is connected to the curved display panel 10.

[0089] The second connecting member 44 may be a structure that is separately provided on a side of the curved display panel 10 close to the circuit board 20 , or may be a structure formed by thickening the BKT of the curved display panel 10 .

[0090] In the embodiment of the present application, the through-holes at both ends of the bracket 42 match the dimensions of the fixing cavity in the second connector 44. The first connector 43 can be a screw, and the diameter of the screw also matches the dimensions of the through-holes at both ends of the bracket 42 and the fixing cavity in the second connector 44. Thus, when the first connector 43 is inserted through the through-holes into the fixing cavity of the second connector 44, the bracket 42 is fixed to the curved display panel 10, thereby achieving a connection between the cooling mechanism 40 and the curved display panel 10.

[0091] In a possible implementation, the size of the first connecting member 43 is positively correlated with the curvature of the curved region corresponding to the first connecting member 43 .

[0092] The size of the first connecting member 43 may be the diameter of the first connecting member 43 , for example, the diameter of a screw.

[0093] In the embodiment of the present application, the deformation degree of the curved area with a larger curvature is higher, and the stability of the cooling mechanism 40 connected to the curved area is poor. Therefore, a larger-sized first connecting member 43 can be used to connect the cooling mechanism 40 to the curved area, that is, the size of the first connecting member 43 is positively correlated with the size of the curvature of the curved area corresponding to the first connecting member 43, thereby improving the connection stability of the cooling mechanism 40.

[0094] In a possible implementation, the size of the second connecting member 44 is positively correlated with the curvature of the curved region corresponding to the second connecting member 44 .

[0095] The size of the second connecting member 44 may be the thickness of the second connecting member 44. The thicker second connecting member 44 may be disposed in a curved region with a larger curvature, thereby improving the stability of the connection between the cooling mechanism 40 and the curved display panel 10.

[0096] Taking the curved display panel 10 including a curved area A and a curved area B, where the curvature of the curved area A is smaller than that of the curved area B as an example, the sizes of the first connecting member 41 and the second connecting member 44 are described as follows:

[0097] The diameters Φ1 and Φ2 of the two first connecting parts 41 in the bending area A can be in the range of 4-6 mm, and the thickness H2 of the second connecting part 42 can be in the range of 8-12 mm; the diameters Φ3 and Φ4 of the two first connecting parts 41 in the bending area B can be in the range of 6-8 mm, and the thickness H2 of the second connecting part 42 can be in the range of 12-16 mm.

[0098] The display module provided in the embodiment of the present application also includes a cooling mechanism, which is arranged on the side of the circuit board away from the curved display panel. The cooling mechanism includes a cooler, a bracket and a first connecting member. A second connecting member is provided on the side of the curved display panel close to the cooling mechanism. Through holes are provided at both ends of the bracket. The second connecting member has a fixed cavity that matches the through hole. When the first connecting member passes through the through hole and is inserted into the fixed cavity of the second connecting member, the cooling mechanism is connected to the curved display panel. The display module provided in the embodiment of the present application includes a cooling mechanism, which can cool the circuit board to prevent the circuit board temperature from being too high and affecting the display effect of the display module. At the same time, the sizes of the first connecting member and the second connecting member are positively correlated with the curvature of the corresponding curved area, thereby improving the stability of the connection between the cooling mechanism and the curved display panel and improving the stability of the display module.

[0099] The above description is merely a preferred embodiment of the present application and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of the invention herein is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features, but also encompasses other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the inventive concept. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features having similar functions disclosed in this application.

Claims

1. A display module, characterized in that: The display module includes: a curved display panel, wherein the curved display panel includes a plurality of curved areas; At least one circuit board is disposed on a non-display surface side of the curved display panel, the at least one circuit board being disposed in N curved areas among the plurality of curved areas, the N curved areas being N curved areas corresponding to first N curvatures of the plurality of curved areas arranged in ascending order of curvature; where N is an integer greater than or equal to 1; The at least one circuit board includes a control circuit board and a source circuit board, wherein the control circuit board is disposed in M ​​of the N bending areas, wherein the M bending areas are M bending areas corresponding to the first M curvatures of the N bending areas arranged in ascending order of curvature; wherein M is an integer greater than or equal to 1 and less than N; The source circuit board is arranged at the remaining positions in the N bending areas except the position occupied by the control circuit board.

2. The display module according to claim 1, wherein: The bendability of the circuit board is related to the curvature of the corresponding bending area of ​​the circuit board.

3. The display module according to claim 2, wherein: If the curvature of the curved area corresponding to the circuit board is greater than a preset threshold, the circuit board is a flexible circuit board; if the curvature of the curved area corresponding to the circuit board is less than the preset threshold, the circuit board is a rigid circuit board.

4. The display module according to claim 1, wherein: The lengths of the control circuit boards in different bending regions are different, and the lengths of the source circuit boards in different bending regions are different.

5. The display module according to claim 4, wherein: If the curvature of the curved area corresponding to the first control circuit board is smaller than the curvature of the curved area corresponding to the second control circuit board, the length of the first control circuit board is greater than the length of the second control circuit board; if the curvature of the curved area corresponding to the first source circuit board is smaller than the curvature of the curved area corresponding to the second source circuit board, the length of the first source circuit board is greater than the length of the second source circuit board.

6. The display module according to claim 1, wherein: A contoured member is provided between the curved display panel and the circuit board. The side of the contoured member close to the curved display panel is a curved structure, and the surface parameters of the curved structure are related to the curvature of the corresponding curved area of ​​the circuit board on the curved display panel.

7. The display module according to claim 1, wherein: The display module further includes a cooling mechanism, which is arranged on a side of the circuit board away from the curved display panel.

8. The display module according to claim 7, wherein: The cooling mechanism includes a cooler and a bracket, wherein the bracket is used to support the cooler on a side of the circuit board away from the curved display panel, and two ends of the bracket are connected to the curved display panel after crossing the circuit board.

9. The display module according to claim 8, wherein: The cooling mechanism further includes a first connecting member. A second connecting member is provided on a side of the curved display panel close to the cooling mechanism. Through holes are provided at both ends of the bracket. The second connecting member has a fixing cavity matching the through holes. When the first connecting member is inserted into the fixing cavity of the second connecting member through the through hole, the cooling mechanism is connected to the curved display panel.

10. The display module according to claim 9, wherein: The size of the first connecting member is positively correlated with the curvature of the curved area corresponding to the first connecting member.

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