Display module, display device and automobile

Abstract

A display module comprises a support layer, one side of the support layer is provided with a flexible display panel, the support layer is provided with a patterned area, the patterned area is provided with a plurality of recesses, the orthographic projection of a bending area on the support layer is located in the patterned area, in the process of unfolding and folding of the display module, the plurality of recesses of the patterned area can buffer the bending stress of the bending area, so that the support layer and the display panel are always closely attached, and the probability of generating display defects can be reduced or eliminated. The application also provides a display device comprising the display module, and a car comprising the display device.

Description

Technical Field

[0001] This invention relates to the field of display technology, and more specifically, to a display module, a display device, and an automobile. Background Technology

[0002] Organic light-emitting diodes (OLEDs) can be fabricated on flexible substrates to form flexible display panels, thereby enabling flexible display functions such as folding, bending, and rolling.

[0003] During the unfolding and retraction of the display module, the support layer experiences certain bending stress, which can easily cause separation between the support layer and the display panel, resulting in poor display quality.

[0004] It should be noted that the information in the background section above is only used to enhance the understanding of the background of the present invention, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to overcome the problem that the support layer and the display panel are prone to separation during the unfolding and retraction of the display module, and to provide a display module and display device.

[0006] According to one aspect of the present invention, a display module is provided having a bending region. The display module includes a support layer and a flexible display panel, the flexible display panel being disposed on one side of the support layer. The support layer has a patterned region, the patterned region having a plurality of recesses, and the orthographic projection of the bending region on the support layer is located within the patterned region.

[0007] In one embodiment of the present invention, the display module further includes a heat insulation layer, which is disposed on the side of the support layer away from the flexible display panel, and the orthographic projection of the heat insulation layer on the support layer does not overlap with the patterned area.

[0008] In one embodiment of the present invention, the display module further includes a first protective adhesive and a printed circuit board. The printed circuit board and the first protective adhesive are disposed on the side of the support layer away from the flexible display panel. The first protective adhesive extends from the side of the printed circuit board to the side of the printed circuit board away from the support layer. The orthographic projection of the first protective adhesive on the support layer does not overlap with the patterned area.

[0009] In one embodiment of the present invention, the printed circuit board includes a first printed circuit board, and the display module further includes a first flexible circuit board. One end of the first flexible circuit board is bonded to the flexible display panel, and the other end is bonded to the first printed circuit board. A first protective adhesive extends from the side of the first printed circuit board to the side of the first printed circuit board away from the support layer.

[0010] In one embodiment of the present invention, the flexible display panel includes a first flat display portion, a bent display portion, and a second flat display portion. The first flat display portion is bonded to one side of the support layer, and the second flat display portion is bonded to the side of the support layer away from the flexible display panel. One end of the bent display portion is connected to the first flat display portion, and the other end is connected to the second flat display portion.

[0011] In one embodiment of the present invention, the two sides of the bending area are a first straight area and a second straight area, respectively. The first straight area is located along a first direction on the side of the bending area closer to the bending display part, and the second straight area is located on the side of the bending area away from the bending display part. The first straight area or the second straight area is provided with a first display area.

[0012] In one embodiment of the present invention, when the first display area is located in the first flat area, the width of the first display area along the first direction is less than or equal to the width of the first flat area; when the first display area is located in the second flat area, the width of the first display area along the first direction is less than or equal to the width of the second flat area.

[0013] In one embodiment of the present invention, the heat insulation layer is disposed on the side of the support layer away from the flexible display panel, and is located along the first direction on the side of the patterned area away from the bent display portion, and the orthographic projection of the heat insulation layer on the flexible display panel is located within the first display area.

[0014] In one embodiment of the present invention, the thickness of the heat insulation layer is less than or equal to the bending diameter of the display module in the bending area.

[0015] In one embodiment of the present invention, the display module includes a first flat area, a second flat area and a third flat area, a first bending area is provided between the first flat area and the second flat area, a second bending area is provided between the second flat area and the third flat area, a support layer is provided with a first patterned area in the first bending area, and a support layer is provided with a second patterned area in the second bending area.

[0016] In one embodiment of the present invention, the printed circuit board includes a first printed circuit board and a second printed circuit board, and the display module further includes a first flexible circuit board and a second flexible circuit board. The portion of the support layer located in the first flat area is the first support portion, and the portion of the support layer located in the second flat area is the second support portion. The first printed circuit board is disposed on the side of the first support portion away from the flexible display panel, and the second printed circuit board is disposed on the side of the second support portion away from the flexible display panel. One end of the second flexible circuit board is bound to the first printed circuit board, and the other end is bound to the second printed circuit board.

[0017] In one embodiment of the present invention, the display module further includes a first protective adhesive, which is disposed on the side of the second support portion away from the flexible display panel, and the first protective adhesive is located on the side of the second printed circuit board away from the first support portion, extending from the side of the second printed circuit board to the side of the second printed circuit board away from the second support portion.

[0018] In one embodiment of the present invention, the display module further includes a cover plate disposed on the side of the flexible display panel away from the support layer. The display module further includes a second protective adhesive. The portion of the support layer located in the third flat area is a third support portion. The second protective adhesive is disposed at the end of the third support portion away from the second support portion. The second protective adhesive at least covers the side of the support layer, the area of ​​the flexible display panel exposed outside the support layer on the non-display side, the side of the flexible display panel, and the area of ​​the cover plate exposed outside the flexible display panel.

[0019] In one embodiment of the present invention, the heat insulation layer is disposed on the side of the support layer away from the flexible display panel. The display module includes a first flat area, a second flat area and a third flat area. A first bending area is provided between the first flat area and the second flat area. A second bending area is provided between the second flat area and the third flat area. The flexible display panel has a first display area in the third flat area. The orthographic projection of the heat insulation layer on the flexible display panel is located in the first display area.

[0020] In one embodiment of the present invention, the display module is a sliding display module, the display module is attached to the scroll in the bending area, the portion of the support layer located in the bending area is the sliding support portion, and the patterned area is located in the sliding support portion.

[0021] In one embodiment of the present invention, the printed circuit board includes a first printed circuit board and a second printed circuit board, and the display module further includes a first flexible circuit board and a second flexible circuit board. The display module also includes a flat sliding area connected to the bending area. The portion of the support layer located in the flat sliding area is a flat support portion. The first printed circuit board and the second printed circuit board are spaced apart along a first direction on the side of the flat support portion away from the flexible display panel. One end of the second flexible circuit board is bonded to the first printed circuit board, and the other end is bonded to the second printed circuit board. A first protective adhesive is applied to the side of the second printed circuit board.

[0022] According to another aspect of the present invention, a display device is provided, comprising a display module provided according to another aspect of the present invention.

[0023] According to another aspect of the invention, an automobile is provided, including a display device provided according to yet another aspect of the invention.

[0024] The display module of the present invention includes a support layer, a flexible display panel on one side of the support layer, a patterned area on the support layer, and a plurality of recesses on the patterned area. The orthographic projection of the bending area on the support layer is located within the patterned area. During the unfolding and retraction of the display module, the plurality of recesses in the patterned area can buffer the bending stress of the bending area, so that the support layer and the display panel are always in close contact, which can reduce or eliminate the probability of display defects.

[0025] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit the invention. Attached Figure Description

[0026] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention. It is obvious that the drawings described below are merely some embodiments of the invention, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0027] Figure 1 This is a schematic diagram of the internal structure of a car when the rearview mirror of the car involved in the embodiment of the present invention adopts a reflective mirror or a liquid crystal display panel.

[0028] Figure 2 This is a schematic diagram of the internal structure of a car when the display module involved in the embodiment of the present invention includes a bending area and is unfolded.

[0029] Figure 3 This is a schematic diagram of the internal structure of a car when the display module involved in the embodiment of the present invention includes a first bending area and a second bending area, and is shown when the display module is unfolded.

[0030] Figure 4 This is a schematic diagram of the interior structure of a car when the display module involved in the embodiment of the present invention is a sliding display module and the sliding display module is unfolded.

[0031] Figure 5 This is a schematic diagram of the interior structure of a car with a display module for a rearview mirror according to an embodiment of the present invention, and when the display module is retracted.

[0032] Figure 6 This is a cross-sectional schematic diagram of the display module according to an embodiment of the present invention, which includes a first flat area and a second flat area, and the support layer is provided with a patterned area.

[0033] Figure 7 This is a planar schematic diagram of the display module according to an embodiment of the present invention, which includes a first flat area and a second flat area, and the support layer is provided with a patterned area.

[0034] Figure 8 The display module involved in the embodiment of the present invention includes a first flat area and a second flat area, and the heat insulation layer is disposed on the side of the support layer away from the flexible display panel. When the first display area is located in the second flat area, the cross-sectional schematic diagram of the display module is shown.

[0035] Figure 9 The display module involved in the embodiment of the present invention includes a first flat area and a second flat area, and the heat insulation layer is disposed on the side of the support layer away from the flexible display panel. The first display area is located in the first flat area. This is a cross-sectional schematic diagram of the display module.

[0036] Figure 10 This is a cross-sectional schematic diagram of the display module according to an embodiment of the present invention, which includes a first flat area and a second flat area, and a first protective adhesive covers the side of the first printed circuit board away from the support layer.

[0037] Figure 11 The display module involved in the embodiment of the present invention includes a first flat area and a second flat area, and a first protective adhesive covers the side of the first printed circuit board away from the support layer, and a heat insulation layer is disposed on the side of the support layer away from the flexible display panel. When the first display area is located in the second flat area, the cross-sectional schematic diagram of the display module is shown.

[0038] Figure 12 This is a cross-sectional schematic diagram of the display module when the display module involved in the embodiment of the present invention includes a first flat area, a second flat area and a third flat area.

[0039] Figure 13 This is a cross-sectional schematic diagram of the display module according to an embodiment of the present invention, which includes a first flat area, a second flat area, and a third flat area, and a heat insulation layer is provided on the side of the second patterned area away from the second printed circuit board.

[0040] Figure 14 This is a cross-sectional schematic diagram of the display module according to an embodiment of the present invention, which includes a first flat area, a second flat area, and a third flat area, and where the first protective adhesive extends to the side of the second printed circuit board away from the second support portion.

[0041] Figure 15 The present invention relates to a display module comprising a first flat area, a second flat area, and a third flat area, wherein the first protective adhesive extends to the side of the second printed circuit board away from the second support portion, and a heat insulation layer is provided on the side of the second patterned area away from the second printed circuit board. This is a cross-sectional schematic diagram of the display module.

[0042] Figure 16The display module involved in the embodiments of the present invention includes a first flat area, a second flat area and a third flat area, and a heat insulation layer is provided on the side of the second patterned area away from the second printed circuit board. The first protective adhesive extends to the side of the second printed circuit board away from the second support portion. When the second protective adhesive covers the area of ​​the cover plate exposed outside the flexible display panel, the cross-sectional schematic diagram of the display module is shown.

[0043] Figure 17 This is a cross-sectional schematic diagram of the display module according to an embodiment of the present invention, when the display module includes a bending area and a straight sliding area.

[0044] Figure 18 The present invention relates to a display module including a bending area and a straight sliding area, and a patterned area provided in the sliding support portion. The first protective adhesive covers the side of the second printed circuit board, and this is a cross-sectional schematic diagram of the display module.

[0045] Figure 19 The present invention relates to a display module including a bending area and a straight sliding area, and a patterned area provided in the sliding support portion. The first protective adhesive covers the side of the first printed circuit board, and this is a cross-sectional schematic diagram of the display module.

[0046] Figure 20 The display module involved in the embodiment of the present invention includes a bending area and a straight sliding area, and the sliding support part is provided with a patterned area. The first protective adhesive covers the side of the second printed circuit board, and the second protective adhesive covers the area of ​​the cover plate exposed outside the flexible display panel. This is a cross-sectional schematic diagram of the display module.

[0047] In the diagram: 1-Support layer, 101-Patterned area, 1011-First patterned area, 1012-Second patterned area, 102-First support part, 103-Second support part, 104-Third support part, 105-Roll-up support part, 106-Flat support part, 2-Flexible display panel, 201-First flat display part, 202-Bent display part, 203-Second flat display part, 204-First display area, 3-Polarizer, 4-Optical adhesive layer, 5-Cover plate, 501-Ink layer, 6-First printed electrode 7-First flexible circuit board, 8-Second printed circuit board, 9-Second flexible circuit board, 10-First adhesive part, 11-Second adhesive part, 12-First protective adhesive, 13-Second protective adhesive, 14-Heat insulation layer, 15-Conductive adhesive, 16-Driver chip, 100-Bending area, 1001-First bending area, 1002-Second bending area, 200-First straight area, 300-Second straight area, 400-Third straight area, 500-Straight sliding area, 1000-Automobile, 2000-Display device. Detailed Implementation

[0048] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that the invention will be thorough and complete, and the concept of the exemplary embodiments will be fully conveyed to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted. Furthermore, the drawings are merely illustrative of the invention and are not necessarily drawn to scale.

[0049] Although relative terms such as "up" and "down" are used in this specification to describe the relative relationship of one component of an icon to another, these terms are used only for convenience, such as according to the orientation of the examples shown in the accompanying drawings. It is understood that if the device of the icon is flipped upside down, the component described as "up" will become the component described as "down." When a structure is "up" of another structure, it may mean that the structure is integrally formed on the other structure, or that the structure is "directly" mounted on the other structure, or that the structure is "indirectly" mounted on the other structure through another structure.

[0050] The terms “a,” “one,” “the,” “the,” and “at least one” are used to indicate the presence of one or more elements / components / etc.; the terms “including” and “having” are used to indicate an open-ended inclusion and to mean that there may be other elements / components / etc. in addition to the listed elements / components / etc.; the terms “first,” “second,” and “third,” etc., are used only as markers and are not a limitation on the number of objects.

[0051] Flexible display panels have made significant progress in recent years, especially in automotive display applications, where they have demonstrated a considerable competitive advantage. For example... Figure 1 As shown, the display device 2000, as a traditional in-vehicle streaming media screen, mainly relies on physical reflectors or liquid crystal display panels. However, compared to the former, flexible display panels can significantly reduce weight while maintaining strength, which is beneficial to improving the flexibility of interior space layout.

[0052] Organic light-emitting diodes (OLEDs) are fabricated on a flexible substrate to form a flexible display panel 2, enabling flexible display functions such as folding, bending, and rolling. During the unfolding and retraction of the display module, the support layer 1 experiences certain bending stress, which can easily cause separation between the support layer 1 and the display panel, resulting in display defects.

[0053] Based on this, embodiments of the present invention provide a display module. For example... Figures 2 to 20As shown, the display module has a bending area 100. The display module includes a support layer 1 and a flexible display panel 2. The flexible display panel 2 is disposed on one side of the support layer 1. The support layer 1 has a patterned area 101 with multiple recesses. The orthographic projection of the bending area 100 on the support layer 1 is located within the patterned area 101.

[0054] The support layer 1 has a patterned area 101 with multiple recesses. The orthographic projection of the bending area 100 on the support layer 1 is located within the patterned area 101. During the unfolding and retraction of the display module, the multiple recesses of the patterned area 101 can buffer the bending stress of the bending area 100, so that the support layer 1 and the display panel are always tightly fitted, which can reduce or eliminate the probability of display defects.

[0055] When the display module is applied to the in-vehicle display device 2000, it is located at the position of the streaming media rearview mirror, and the form of the display module can be dynamically adjusted according to the driving scenario and user needs. For example... Figures 2 to 4 As shown, when parked, the display module can be fully extended to present a large information window to support a variety of in-car entertainment activities such as large-screen viewing and gaming. Figure 5 As shown, during driving, the display module can be retracted to minimize space occupation, displaying only key driving information to ensure driving safety and optimize the use of interior space. For example, before the display module is deployed, a camera inside the vehicle can capture rear-view images, which are then transmitted to the display module for display, realizing the display function of a traditional rearview mirror.

[0056] The display panel involved in the embodiments of the present invention will be described in detail below with reference to specific examples.

[0057] like Figure 6 and Figure 7 As shown, the display module may include a support layer 1 and a flexible display panel 2. The flexible display panel 2 includes a first flat display portion 201, a bent display portion 202, and a second flat display portion 203. The first flat display portion 201 is bonded to one side of the support layer 1. A first adhesive portion 10 is provided on the side of the support layer 1 away from the first flat display portion 201. The second flat display portion 203 is bonded to the other side of the first adhesive portion 10 away from the support layer 1. One end of the bent display portion 202 is connected to the first flat display portion 201, and the other end is connected to the second flat display portion 203. A driving chip 16 is provided on the side of the second flat display portion 203 away from the support layer 1. The driving chip 16 is used to control the display of the flexible display panel 2.

[0058] The display module also includes a first flexible circuit board 7, a second adhesive part 11, and a first printed circuit board 6. The second adhesive part 11 is disposed on the side of the support layer 1 away from the first flat display part 201. The first printed circuit board 6 is bonded to the side of the second adhesive part 11 away from the support layer 1. The first flexible circuit board 7 is disposed on the side of the second flat display part 203 and the first printed circuit board 6 away from the support layer 1. One end of the first flexible circuit board 7 is bonded to the flexible display panel 2 by conductive adhesive 15, and the other end is bonded to the first printed circuit board 6 by conductive adhesive 15.

[0059] The display module has a bending area 100. Since the support layer 1 experiences strong bending stress during bending, a patterned area 101 is provided in the support layer 1. The patterned area 101 has multiple recesses, which alleviate the bending stress of the support layer 1 in the patterned area 101. It should be noted that the depth of the recesses is less than or equal to the thickness of the support layer 1. To ensure that the bending stress at various locations of the bending area 100 is alleviated, the orthographic projection of the bending area 100 onto the support layer 1 is located within the patterned area 101; that is, in the first direction, the two sides of the patterned area 101 are recessed relative to the two sides of the bending area 100.

[0060] The bending area 100 has a first straight area 200 and a second straight area 300 on either side. The first straight area 200 is located along the first direction on the side of the bending area 100 closer to the second adhesive portion 11, and the second straight area 300 is located along the first direction on the side of the bending area 100 away from the second adhesive portion 11. Because the first display area 204 is used frequently, prolonged use can easily cause it to overheat, affecting the lifespan of the display module. Figure 8 As shown, the display module also includes a heat insulation layer 14, which is located on the side of the support layer 1 away from the first flat display section 201. This effectively blocks the potential interference of heat generated by electronic components on the display effect of the first display area 204, thereby enhancing the display module's ability to withstand changes in its internal environment and extending its lifespan. The orthographic projection of the heat insulation layer 14 onto the support layer 1 does not overlap with the orthographic projection of the bending area 100 onto the support layer 1. The thickness of the heat insulation layer 14 is less than the diameter of the bending display section 202, preventing interference with components on the first printed circuit board 6 during folding.

[0061] like Figure 8 As shown, the first display area 204 is located in the second flat area 300. At this time, the width of the first display area 204 along the first direction is less than or equal to the width of the second flat area 300 along the first direction. Since the first display area 204 is located in the second flat area 300, the heat insulation layer 14 is located along the first direction on the side of the bending area 100 away from the second adhesive portion 11. The orthographic projection of the heat insulation layer 14 on the support layer 1 can be located within the orthographic projection of the first display area 204 on the support layer 1, that is, the width of the heat insulation layer 14 along the first direction is less than the width of the first display area 204. Figure 9 As shown, the first display area 204 can also be located in the first flat area 200, in which case the width of the first display area 204 along the first direction is less than or equal to the width of the first flat area 200.

[0062] like Figure 10 As shown, the display module also includes a first protective adhesive 12. The first protective adhesive 12 is disposed on the side of the support layer 1 away from the flexible display panel 2. The first protective adhesive 12 covers the side of the second adhesive portion 11, the side of the first printed circuit board 6, and the side of the first printed circuit board 6 away from the support layer 1. The orthographic projection of the first protective adhesive 12 on the support layer 1 does not overlap with the orthographic projection of the bending area 100 on the support layer 1. The first protective adhesive 12 can encapsulate a highly stable adhesive material, such as UV-curable adhesive, waterproof adhesive, or a combination of multiple adhesives. Figure 11 As shown, in Figure 10 Based on this, a heat insulation layer 14 is provided on the side of the support layer 1 away from the flexible display panel 2, and the orthographic projection of the heat insulation layer 14 on the support layer 1 can be located within the orthographic projection of the first display area 204 on the support layer 1.

[0063] like Figures 6 to 11 As shown, the display module may further include a polarizer 3, an optical adhesive layer 4, and a cover plate 5. The polarizer 3 is located on the display side of the flexible display panel 2, the optical adhesive layer 4 is located on the side of the polarizer 3 away from the flexible display panel 2, and the cover plate 5 is located on the side of the optical adhesive layer 4 away from the flexible display panel 2. The cover plate 5 is bonded to the flexible display panel 2 by the optical adhesive layer 4. Because the display module can be in both unfolded and retracted states, the cover plate 5 should also be made of a flexible material to adapt to bending during the unfolding process. The edge of the cover plate 5 is provided with an ink layer 501, which can prevent light leakage from the edge of the display module.

[0064] It should be noted that the cover plate 5, as a hard and transparent protective layer, covers the flexible display panel 2. The cover plate 5 can be made of glass or plastic, and can resist external scratches and impacts. Optical transparent adhesive, applied between the cover plate 5 and the flexible display panel 2, ensures optical clarity without the formation of air bubbles. The polarizer 3 is used to filter light with specific polarization directions, which can improve the contrast of the displayed image.

[0065] When streaming rearview mirror is used Figures 6 to 11 When displaying modules in the middle, such as Figure 2 As shown, when parked, the display module can be fully extended, with the first straight area 200, the curved area 100, and the second straight area 300 working together to present a large information window to support a variety of in-car entertainment activities such as large-screen viewing and games. Figure 5As shown, during driving, it can be folded to minimize space occupation. By setting a first display area 204 in the first flat area 200 or the second flat area 300, key driving information (such as driving images behind the vehicle) is displayed through the first display area 204, ensuring driving safety and optimizing the use of interior space.

[0066] like Figures 12 to 16 As shown, the display module includes a first flat area 200, a second flat area 300 and a third flat area 400. A first bending area 1001 is provided between the first flat area 200 and the second flat area 300, and a second bending area 1002 is provided between the second flat area 300 and the third flat area 400. The support layer 1 has a first patterned area 1011 in the first bending area 1001 and a second patterned area 1012 in the second bending area 1002.

[0067] After the display module is bent in the first bending area 1001 and the second bending area 1002, the angle between the first straight display area and the second straight display area can be equal to the angle between the third straight display area and the second straight display area. That is, the bending shape formed by the display module is a "Z-shaped structure". The display module also includes a heat insulation layer 14, which is disposed in the third straight area 400.

[0068] like Figure 13 As shown, since electronic components on printed circuit boards are prone to heat generation, the display module also includes a first printed circuit board 6, a first flexible circuit board 7, a second printed circuit board 8, and a second flexible circuit board 9 to facilitate better heat dissipation. The portion of the support layer 1 located in the first flat area 200 is the first support portion 102, and the portion of the support layer 1 located in the second flat area 300 is the second support portion 103. The first printed circuit board 6 is located on the side of the first support portion 102 away from the flexible display panel 2, and the second printed circuit board 8 is located on the side of the second support portion 103 away from the flexible display panel 2. One end of the first flexible circuit board 7 is bound to the flexible display panel 2, and the other end is bound to the first printed circuit board 6. One end of the second flexible circuit board 9 is bound to the first printed circuit board 6, and the other end is bound to the second printed circuit board 8. This improves overall thermal management and assembly flexibility.

[0069] The third flat area 400 can be used to display key driving information while the car is in motion. However, due to the high frequency of use of the third flat area 400, prolonged use can easily cause it to overheat, affecting the lifespan of the display module. For example... Figure 13As shown, the display module also includes a heat insulation layer 14. The flexible display panel 2 has a first display area in the third flat area 400, which is used to display key driving information during vehicle operation. The heat insulation layer 14 is located within the first display area on the flexible display panel 2, effectively blocking the potential interference of heat generated by electronic components on the display effect of the first display area 204, thereby enhancing the display module's ability to resist changes in its internal environment and extending the lifespan of the display module.

[0070] like Figure 14 As shown, the display module also includes a first protective adhesive 12. The first protective adhesive 12 is located on the side of the second support portion 103 away from the flexible display panel 2, and is also located on the side of the second printed circuit board 8 away from the first support portion 102. The first protective adhesive 12 covers the side of the second printed circuit board 8 and can extend to the side of the second printed circuit board 8 away from the second support portion 103. This prevents misalignment between the second printed circuit board 8 and the support layer 1 during bending of the display module. Figure 15 As shown, in Figure 14 Based on this, the display module also includes a heat insulation layer 14, and the portion of the support layer 1 located in the third flat area 400 is the third support portion 104. The heat insulation layer 14 is located on the side of the third support portion 104 away from the flexible display panel 2.

[0071] like Figure 16 As shown, the display module also includes a second protective adhesive 13, which is disposed at the end of the third sub-display module away from the second sub-display module. The second protective adhesive 13 covers the side of the heat insulation layer 14, the side of the support layer 1, the area of ​​the flexible display panel 2 exposed outside the support layer 1 on the non-display side, the side of the flexible display panel 2, and the area of ​​the cover plate 5 exposed outside the flexible display panel 2. The second protective adhesive 13 includes, but is not limited to, UV adhesive, waterproof adhesive, and flame-retardant adhesive, or a combination of multiple adhesives. When the display module includes the heat insulation layer 14, the second protective adhesive 13 can also cover the side of the heat insulation layer 14.

[0072] Streaming rearview mirror adopts Figures 12 to 16 When displaying the module as shown, such as Figure 2 As shown, the driving image behind the vehicle can be displayed by illuminating the first horizontal area 200, thus supporting the traditional rearview mirror display function. Figure 3 As shown, the display module with a "Z-shaped structure" bending shape can be folded and unfolded two or more times, so that the first flat area 200, the second flat area 300, the third flat area 400, the first bending area 1001 and the second bending area 1002 are located on the same plane, expanding the information display, and even serving as an entertainment expansion display function after autonomous driving or parking.

[0073] The display module is a sliding display module, such as Figure 4As shown, the display module has interconnected curved areas 100 and straight sliding areas 500. The display module is attached to the scroll in the curved area 100. When the vehicle is parked, the curved area 100 slides off the scroll, and the curved area 100 and the straight sliding area 500 are displayed together, which can present a large information window to support a variety of in-vehicle entertainment activities such as large-screen viewing and games. Figure 2 As shown, during driving, the bending area 100 is rolled up to the spool, leaving only the straight sliding area 500 exposed to display key driving information, ensuring driving safety and optimizing the use of interior space.

[0074] like Figure 17 As shown, the portion of the support layer 1 located in the bending area 100 is the sliding support portion 105. To prevent the sliding support portion 105 from separating from the flexible display panel 2 due to bending stress during the sliding process, the sliding support portion 105 is provided with a patterned area 101. The orthographic projection of the bending area 100 onto the sliding support portion 105 is located within the patterned area 101. The patterned area 101 can buffer the bending stress of the bending area 100, ensuring that the support layer 1 and the display panel are always in close contact, thereby reducing or eliminating the probability of display defects.

[0075] The display module may also include a first printed circuit board 6 and a first flexible circuit board 7. The portion of the support layer 1 located in the flat sliding area 500 is a flat support portion 106. The first printed circuit board 6 is located on the side of the flat support portion 106 away from the flexible display panel 2. One end of the first flexible circuit board 7 is bound to the flexible display panel 2, and the other end is bound to the first printed circuit board 6.

[0076] like Figure 18 As shown, the display module may further include a second printed circuit board 8 and a second flexible circuit board 9. The first printed circuit board 6 and the second printed circuit board 8 are spaced apart along a first direction on the side of the flat support portion 106 away from the flexible display panel 2. The second printed circuit board 8 is located on the side of the sliding support portion 105 away from the flexible display panel 2. One end of the second flexible circuit board 9 is bound to the first printed circuit board 6, and the other end is bound to the second printed circuit board 8.

[0077] The display module may also include a first protective adhesive 12, such as Figure 19 As shown, Figure 19 The display module in the image only includes a first printed circuit board 6 and a first flexible circuit board 7. A first protective adhesive 12 extends from the side of the first printed circuit board 6 to the side of the first printed circuit board 6 away from the second support portion 103. For example... Figure 18 As shown, Figure 18 When the display module also includes a second printed circuit board 8 and a second flexible circuit board 9, the first protective adhesive 12 extends from the side of the first printed circuit board 6 to the side of the first printed circuit board 6 away from the second support portion 103.

[0078] like Figure 20 As shown, in Figure 18 Based on this, the display module also includes a second protective adhesive 13. The second protective adhesive 13 is located at the end of the bending area 100 away from the straight sliding area 500. The second protective adhesive 13 covers the side of the heat insulation layer 14, the side of the support layer 1, the area of ​​the non-display side of the flexible display panel 2 exposed outside the support layer 1, the side of the flexible display panel 2, and the area of ​​the cover plate 5 exposed outside the flexible display panel 2.

[0079] It should be noted that the first direction is Figures 6 to 11 ,as well as Figures 17 to 20 The x-direction shown is the length direction of the display module.

[0080] This invention also provides a display device 2000, which may include the display module described in any of the above embodiments of this invention. The specific structure and beneficial effects of the display device 2000 can also be referred to the display module, therefore, they will not be repeated here.

[0081] It should be noted that, in addition to the display module, the display device 2000 also includes other necessary components and parts, such as the housing, circuit board, power cord, etc. Those skilled in the art can make corresponding additions according to the specific usage requirements of the display device 2000, which will not be elaborated here.

[0082] When the display module has the structure mentioned above, the display device 2000 can be a traditional electronic device, such as a mobile phone, computer, television and video recorder, or an emerging wearable device, such as a virtual reality device and an augmented reality device, which will not be listed here.

[0083] This invention also provides a vehicle 1000, which includes a display device 2000 according to yet another aspect of the invention, the display device 2000 serving as a rearview mirror for the vehicle 1000. The specific structure and beneficial effects of the vehicle 1000 can be found in the display module description, and will not be repeated here.

[0084] Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention described herein. This application is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not invented herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the appended claims.

Claims

1. A display module having a bending area, characterized in that, The display module includes: Support layer; A flexible display panel is disposed on one side of the support layer; The support layer has a patterned area, and the patterned area has multiple recesses. The orthographic projection of the bending area on the support layer is located within the patterned area. The display module further includes a heat insulation layer, which is disposed on the side of the support layer away from the flexible display panel, and the orthographic projection of the heat insulation layer on the support layer does not overlap with the patterned area.

2. The display module according to claim 1, characterized in that, The display module further includes a first protective adhesive and a printed circuit board. The printed circuit board and the first protective adhesive are disposed on the side of the support layer away from the flexible display panel. The first protective adhesive extends from the side of the printed circuit board to the side of the printed circuit board away from the support layer. The orthographic projection of the first protective adhesive on the support layer does not overlap with the patterned area.

3. The display module according to claim 2, characterized in that, The printed circuit board includes a first printed circuit board, and the display module further includes a first flexible circuit board. One end of the first flexible circuit board is bonded to the flexible display panel, and the other end is bonded to the first printed circuit board. The first protective adhesive extends from the side of the first printed circuit board to the side of the first printed circuit board away from the support layer.

4. The display module according to claim 1, characterized in that, The flexible display panel includes a first flat display portion, a bent display portion, and a second flat display portion. The first flat display portion is bonded to one side of the support layer, and the second flat display portion is bonded to the side of the support layer away from the flexible display panel. One end of the bent display portion is connected to the first flat display portion, and the other end is connected to the second flat display portion.

5. The display module according to claim 4, characterized in that, The two sides of the bending area are a first straight area and a second straight area, respectively. The first straight area is located along a first direction on the side of the bending area closer to the bending display part, and the second straight area is located on the side of the bending area away from the bending display part. The first straight area or the second straight area is provided with a first display area.

6. The display module according to claim 5, characterized in that, When the first display area is located in the first flat area, the width of the first display area along the first direction is less than or equal to the width of the first flat area. When the first display area is located in the second flat area, the width of the first display area along the first direction is less than or equal to the width of the second flat area.

7. The display module according to claim 6, characterized in that, The heat insulation layer is disposed on the side of the support layer away from the flexible display panel, and is located along the first direction on the side of the patterned area away from the bent display portion. The orthographic projection of the heat insulation layer on the flexible display panel is located within the first display area.

8. The display module according to claim 1, characterized in that, The thickness of the heat insulation layer is less than or equal to the bending diameter of the display module in the bending area.

9. The display module according to claim 2, characterized in that, The display module includes a first flat area, a second flat area, and a third flat area. A first bending area is provided between the first flat area and the second flat area, and a second bending area is provided between the second flat area and the third flat area. The support layer has a first patterned area in the first bending area and a second patterned area in the second bending area.

10. The display module according to claim 9, characterized in that, The printed circuit board includes a first printed circuit board and a second printed circuit board. The display module also includes a first flexible circuit board and a second flexible circuit board. The portion of the support layer located in the first flat area is a first support portion, and the portion of the support layer located in the second flat area is a second support portion. The first printed circuit board is disposed on the side of the first support portion away from the flexible display panel, and the second printed circuit board is disposed on the side of the second support portion away from the flexible display panel. One end of the second flexible circuit board is bound to the first printed circuit board, and the other end is bound to the second printed circuit board.

11. The display module according to claim 10, characterized in that, The display module further includes a first protective adhesive, which is disposed on the side of the second support portion away from the flexible display panel, and the first protective adhesive is located on the side of the second printed circuit board away from the first support portion, extending from the side of the second printed circuit board to the side of the second printed circuit board away from the second support portion.

12. The display module according to claim 11, characterized in that, The display module further includes a cover plate disposed on the side of the flexible display panel away from the support layer. The display module also includes a second protective adhesive. The portion of the support layer located in the third flat area is a third support portion. The second protective adhesive is disposed at the end of the third support portion away from the second support portion. The second protective adhesive at least covers the side of the support layer, the area of ​​the flexible display panel exposed outside the support layer on the non-display side, the side of the flexible display panel, and the area of ​​the cover plate exposed outside the flexible display panel.

13. The display module according to claim 1, characterized in that, The heat insulation layer is disposed on the side of the support layer away from the flexible display panel. The display module includes a first flat area, a second flat area, and a third flat area. A first bending area is provided between the first flat area and the second flat area. A second bending area is provided between the second flat area and the third flat area. The flexible display panel has a first display area in the third flat area. The orthographic projection of the heat insulation layer on the flexible display panel is located within the first display area.

14. The display module according to claim 2, characterized in that, The display module is a sliding display module, and the display module is attached to the scroll in the bending area. The portion of the support layer located in the bending area is a sliding support portion, and the patterned area is located in the sliding support portion.

15. The display module according to claim 14, characterized in that, The printed circuit board includes a first printed circuit board and a second printed circuit board. The display module also includes a first flexible circuit board and a second flexible circuit board. The display module also includes a flat sliding area connected to the bending area. The portion of the support layer located in the flat sliding area is a flat support portion. The first printed circuit board and the second printed circuit board are spaced apart along a first direction on the side of the flat support portion away from the flexible display panel. One end of the second flexible circuit board is bonded to the first printed circuit board, and the other end is bonded to the second printed circuit board. The first protective adhesive covers the side of the second printed circuit board.

16. A display device, characterized in that, Includes the display module as described in any one of claims 1 to 15.

17. A car, characterized in that, Includes the display device as described in claim 16.

Images