Display module and display apparatus
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2026-01-30
- Publication Date
- 2026-08-13
Smart Images
Figure CN2026076052_13082026_PF_FP_ABST
Abstract
Description
Display module and display device
[0001] Cross-referencing
[0002] This disclosure claims priority to Chinese Patent Application No. 202510142266.8, filed on February 8, 2025, entitled “Display Module and Display Device”, the entire contents of which are incorporated herein by reference. Technical Field
[0003] This invention relates to the field of display technology, and more specifically, to a display module and a display device. Background Technology
[0004] Currently, with the continuous development of display technology, the screen ratio of screens is getting higher and higher, and the bezels of display panels and display modules are being continuously compressed.
[0005] Because the display panel needs to be aligned with the bent part when it is bent, a second alignment mark is reserved in the non-display area of the display part, which makes it impossible to reduce the size of the bezel of the display panel and display module.
[0006] 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
[0007] The purpose of this invention is to overcome the problem that the bezels of the display panel and display module cannot be narrowed due to the area reserved for setting the first alignment mark in the non-display area of the display section, and to provide a display module and display device.
[0008] According to one aspect of the present invention, a display module is provided, comprising a display panel, a heat dissipation film, and a cover plate. The display panel includes a display portion and a bent portion, the bent portion being connected to the edge of the display portion and having a first alignment mark on the bent portion. The heat dissipation film is disposed on the non-display side of the display panel. The cover plate is disposed on the side of the display panel away from the heat dissipation film. The display portion has a lug, and the lug has a second alignment mark, or the heat dissipation film has a second alignment mark, or the area of the cover plate that does not overlap with the display panel has a second alignment mark.
[0009] In one embodiment of the present invention, the display portion includes a first side extending along a first direction and a second side extending along a second direction, the bent portion is connected to the first side of the display portion, and the lug protrudes relative to the first side of the display portion along the second direction.
[0010] In one embodiment of the present invention, the display portion is provided with at least one pair of lugs, each pair of lugs including two lugs, the two lugs being symmetrically arranged on both sides of the bent portion, and each lug being provided with a second alignment mark.
[0011] In one embodiment of the present invention, the distance between the edge of the lug and the edge of the display portion at the position furthest from the display portion in the second direction is 0.5 to 2 mm.
[0012] In one embodiment of the present invention, the distance between the edge of the lug and the edge of the bend in the first direction is greater than or equal to 10 mm.
[0013] In one embodiment of the present invention, the lug includes a first protrusion and a second protrusion arranged sequentially along a direction away from the display portion. The width of the second protrusion is greater than the width of the first protrusion. The second alignment mark is a T-shaped structure, and the second alignment mark includes a first alignment portion and a second alignment portion. The first alignment portion is disposed on the first protrusion, and the second alignment portion is disposed on the second protrusion. The first alignment portion extends along a second direction, and the second alignment portion extends along a first direction.
[0014] In one embodiment of the present invention, the lug includes a first protrusion and a second protrusion arranged sequentially in a direction away from the display portion. The width of the first protrusion gradually increases in the direction away from the display portion, and the width of the second protrusion gradually decreases in the direction away from the display portion. The shape of the second alignment mark is polygonal. The second alignment mark has two first alignment sides and two second alignment sides. The two first alignment sides are arranged opposite to each other and close to the display portion, and the two second alignment sides are arranged opposite to each other and away from the display portion. The two first alignment sides are disposed on the first protrusion, and the two second alignment sides are disposed on the second protrusion.
[0015] In one embodiment of the present invention, the width of the first protrusion increases uniformly in the direction away from the display portion, so that the two opposite sides of the first protrusion are straight edges, and the width of the second protrusion increases uniformly in the direction away from the display portion, so that the two opposite sides of the second protrusion are straight edges. The two sides on the first protrusion are parallel to the two first alignment edges, and the two sides on the second protrusion are parallel to the two second alignment edges.
[0016] In one embodiment of the present invention, the increase in width of the first protrusion gradually decreases in the direction away from the display portion, the decrease in width of the second protrusion gradually increases in the direction away from the display portion, and the shape of the second alignment mark is a quadrilateral or a pentagon.
[0017] In one embodiment of the present invention, a second alignment mark is disposed on a heat dissipation film, the heat dissipation film including a metal layer, foam and an adhesive layer, the foam being disposed on the side of the display portion away from the cover plate, the adhesive layer being disposed on the side of the foam away from the cover plate, and the metal layer being disposed on the side of the adhesive layer away from the cover plate.
[0018] In one embodiment of the invention, the second alignment mark is formed by cutting a metal layer.
[0019] In one embodiment of the present invention, the second alignment mark is adhered to the side of the metal layer away from the display portion.
[0020] In one embodiment of the present invention, the second alignment mark includes a base film, an alignment layer, and a protective film. The alignment layer is disposed on the side of the base film away from the heat dissipation film, and the protective film is disposed on the side of the alignment layer away from the heat dissipation film.
[0021] In one embodiment of the present invention, the distance between the edge of the second pair of marks and the edge of the heat dissipation film in the second direction is 0.2 to 2 mm.
[0022] In one embodiment of the present invention, the metal layer is provided with an alignment opening, and a second alignment mark is provided in the alignment opening, the second alignment mark being provided on the adhesive layer.
[0023] In one embodiment of the present invention, the alignment opening is provided at the edge of the display portion, the second alignment mark is a T-shaped structure, the second alignment mark includes a first alignment portion and a second alignment portion, the first alignment portion extends along a second direction, the second alignment portion extends along a first direction, and the first alignment portion is located on the side of the second alignment portion away from the edge of the display portion.
[0024] In one embodiment of the present invention, the area where the orthographic projection of the display unit onto the cover plate does not overlap with the cover plate is provided with light-shielding ink, and a second alignment mark is provided on the light-shielding ink, the color of the second alignment mark being different from the color of the light-shielding ink.
[0025] According to another aspect of this application, a display device is provided, comprising the display module provided in any one aspect of this invention.
[0026] The display module of the present invention includes a display panel, which includes a display portion. The display portion has a lug, and a second alignment mark is provided on the lug, or on a heat dissipation film or ink area, or in an area where the cover plate does not overlap with the display panel. By placing the second alignment mark on the lug, heat dissipation film, or cover plate outside the non-display area, the width of the non-display area of the display portion can be reduced while simultaneously aligning the display portion with the bent portion, thereby reducing the bezel of the display panel and the display module.
[0027] 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
[0028] 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.
[0029] Figure 1 is a planar schematic diagram of the display module involved in the embodiment of the present invention when an alignment opening is provided at the lower edge of the heat dissipation film, and the alignment opening exposes part of the display area.
[0030] Figure 2 is a planar schematic diagram of the display module involved in the embodiment of the present invention when the heat dissipation film is provided with a second alignment mark.
[0031] Figure 3 is a magnified view of part A in Figure 2.
[0032] Figure 4 is a magnified view of part B in Figure 2.
[0033] Figure 5 is a cross-sectional schematic diagram of the second alignment mark involved in an embodiment of the present invention.
[0034] Figure 6 is a cross-sectional schematic diagram of the heat dissipation film involved in an embodiment of the present invention.
[0035] Figure 7 is a planar schematic diagram of the display module involved in the embodiment of the present invention when an alignment opening is provided on the metal layer and a second alignment mark is provided on the adhesive layer exposed in the alignment opening.
[0036] Figure 8 is a plan view of the display module according to an embodiment of the present invention, when the alignment opening is located at the edge of the display part and a second alignment mark is provided on the adhesive layer exposed inside the alignment opening.
[0037] Figure 9 is a magnified view of part C in Figure 8.
[0038] Figure 10 is a cross-sectional schematic diagram of the heat dissipation film according to an embodiment of the present invention when the metal layer has alignment openings.
[0039] Figure 11 is a cross-sectional schematic diagram of the heat dissipation film according to an embodiment of the present invention when the width of the second protrusion is greater than the width of the first protrusion.
[0040] Figure 12 is a magnified view of part D in Figure 11.
[0041] Figure 13 is a planar schematic diagram of the display module involved in the embodiment of the present invention when the two opposite sides of the first protrusion and the second protrusion are straight edges and the shape of the second alignment mark is set to a pentagon.
[0042] Figure 14 is a magnified view of part E in Figure 13.
[0043] Figure 15 is a planar schematic diagram of the display module involved in the embodiment of the present invention, in which the increase in the width of the first protrusion gradually decreases along the direction away from the display portion, the decrease in the width of the second protrusion gradually increases along the direction away from the display portion, and the shape of the second alignment mark is set to a quadrilateral.
[0044] Figure 16 is a magnified view of part F in Figure 15.
[0045] Figure 17 is a planar schematic diagram of the display module involved in the embodiment of the present invention when the lug is set as a rectangle.
[0046] Figure 18 is a planar schematic diagram of a display module according to an embodiment of the present invention, which has a pair of lugs on the display section.
[0047] Figure 19 is a planar schematic diagram of the display module involved in the embodiment of the present invention, when the area of the display section on the cover plate is provided with light-shielding ink and the area of the cover plate not overlapping with the cover plate is provided with a second alignment mark.
[0048] In the diagram: 1-Display panel, 11-Display section, 111-Display area, 112-Non-display area, 12-Bending section, 13-Leg, 131-First protrusion, 132-Second protrusion, 2-Heat dissipation film, 21-Metal layer, 211-Alignment opening, 22-Foam, 23-Adhesive layer, 3-Cover plate, 31-Light-shielding ink, 4-First alignment mark, 41-Third alignment section, 42-Fourth alignment section, 5-Second alignment mark, 51-First alignment section, 52-Second alignment section, 53-First alignment edge, 54-Second alignment edge, 55-Third alignment edge, 501-Bottom film, 502-Alignment layer, 503-Protective film, 6-Display driver chip, 7-Flexible circuit board. Detailed Implementation
[0049] 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.
[0050] Although relative terms such as "upper" and "lower" 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 in the accompanying drawings. It is understood that if the device of the icon is flipped so that it is upside down, the component described as "upper" will become the component described as "lower." When a structure is "upper" 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.
[0051] 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.
[0052] Extremely narrow bezels are a major trend in display panels today, allowing the display area 111 to occupy the largest possible proportion of the entire display panel 1. COP (Chip On Panel) involves setting a bent portion 12 at the lower edge of the display section 11, with pads on the bent portion 12. The display driver chip 6 (DDIC) is directly fixed to the pads. Utilizing the flexibility of the display panel 1, the bent portion 12 is bent to the non-display side of the display panel 1 through a bending process, thereby reducing the bezel area and forming a narrow bezel.
[0053] When the display panel 1 is bent, the display area 11 needs to be aligned with the bent portion 12. Typically, a first alignment mark 4 is set on the bent portion 12, and a second alignment mark 5 is set on the display area 11. When the bent portion 12 is bent to the back of the display panel 1, an image recognition device (e.g., a CCD camera) identifies the distance between the first alignment mark 4 and the second alignment mark 5, ensuring that this distance is within a set range, thereby guaranteeing a narrow bezel for the display module. The second alignment mark 5 is usually located in the non-display area 112 below the display area 111, occupying part of the bottom bezel, thus preventing the bottom bezel of the display module from being narrowed.
[0054] As shown in Figure 1, in order to reduce the bottom bezel of the display module, an alignment opening 211 is provided at the bottom edge of the heat dissipation film 2 to avoid the second alignment mark 5, so that the second alignment mark 5 can be exposed when bending for alignment. However, as the bottom bezel of the display module becomes narrower, part of the display area 111 will be exposed by the alignment opening 211. The sub-pixels exposed by the alignment opening 211 cannot be shielded and protected by the heat dissipation film 2, and the resulting electrostatic discharge (ESD) cannot be conducted away by the heat dissipation film 2, causing display defects in the display panel 1. In addition, when the exposed sub-pixels are illuminated by external light, it will affect the recombination of charge carriers in the light-emitting material layer, resulting in a difference in brightness between the exposed and shielded sub-pixels, leading to uneven display.
[0055] Based on this, the present invention provides a display module. As shown in Figures 4 to 18, the display module includes a display panel 1, a heat dissipation film 2, and a cover plate 3. The display panel 1 includes a display part 11 and a bent part 12. The bent part 12 is connected to the edge of the display part 11, and a first alignment mark 4 is provided on the bent part 12. The heat dissipation film 2 is provided on the non-display side of the display panel 1. The cover plate 3 is provided on the side of the display panel 1 away from the heat dissipation film 2. The display part 11 is provided with a lug 13, and a second alignment mark 5 is provided on the lug 13, or on the heat dissipation film 2, or on the area of the cover plate 3 that does not overlap with the display panel 1.
[0056] The display section 11 is provided with a lug 13, and a second alignment mark 5 is provided on the lug 13, or on the heat dissipation film 2 or the ink area, or on the area of the cover plate 3 that does not overlap with the display panel 1. By providing the second alignment mark 5 on the lug 13, the heat dissipation film 2 or the cover plate 3 outside the non-display area 112, the width of the non-display area 112 of the display section 11 can be reduced while aligning the display section 11 with the bent section 12, thereby reducing the bezel of the display panel 1 and the display module.
[0057] The display module involved in the embodiments of the present invention will be described in detail below with reference to specific examples.
[0058] As shown in Figure 2, the display module may include a display panel 1, which may include a display section 11 and a bent section 12. The bent section 12 is connected to the lower edge of the display section 11. The bent section 12 is provided with a first bonding area and a second bonding area. The first bonding area is provided with a first pad, and the second bonding area is provided with a second pad. The bent section 12 is bent to the non-display side of the display section 11. The first pad and the second pad are located on the side of the bent section 12 away from the display section 11. A display driver chip 6 is bonded to the first pad, and the second pad is bonded to one end of the flexible circuit board 7.
[0059] The display module may further include a heat dissipation film 2, which is disposed on the non-display side of the display unit 11. The display module may also include a cover plate 3, which is disposed on the display side of the display unit 11. The display unit 11 has a display area 111 and a non-display area 112 disposed around the periphery of the display area 111. The edge of the heat dissipation film 2 is located between the edge of the display area 111 and the edge of the non-display area 112. The area of the cover plate 3 is larger than the area of the display unit 11, and the edge of the non-display area 112 is located between the edge of the heat dissipation film 2 and the edge of the cover plate 3.
[0060] The heat dissipation film 2 is provided with a second alignment mark 5, which can reduce the space for the non-display area 112 to be placed with the second alignment mark 5 or distribute more peripheral traces. The maximum size of the second alignment mark 5 along the second direction can be 1 to 10 mm, and the distance between the edge of the second alignment mark and the edge of the heat dissipation film 2 in the second direction is 0.2 to 2 mm. As shown in Figure 3, the second alignment mark 5 has a T-shaped structure, including a first alignment part 51 and a second alignment part 52. The first alignment part 51 extends along the second direction, and the second alignment part 52 extends along the first direction. The second alignment part 52 can be provided on the side of the first alignment part 51 close to the edge of the display part 11, or it can be provided on the side of the second alignment part 52 away from the edge of the display part 11.
[0061] As shown in Figure 4, the first alignment mark 4 is cross-shaped and includes a third alignment portion 41 and a fourth alignment portion 42. The third alignment portion 41 extends along a first direction, and the fourth alignment portion 42 extends along a second direction. When the first alignment mark 4 is aligned with the second alignment mark 5, the first alignment portion 51 and the fourth alignment portion 42 are aligned with each other, and the second alignment portion 52 and the third alignment portion 41 are aligned with each other, thereby determining the distance between the first alignment mark 4 and the second alignment mark 5 and ensuring that the distance is within a set range.
[0062] The second alignment mark 5 can be cut separately from the incoming material, as shown in Figure 5. The second alignment mark 5 includes a base film 501, an alignment layer 502, and a protective film 503. The alignment layer 502 is located on the side of the base film 501 away from the heat dissipation film 2, and the protective film 503 is located on the side of the alignment layer 502 away from the heat dissipation film 2. The base film 501 and the protective film 503 can protect the alignment layer 502, preventing the alignment layer 502 from being affected during the bonding process of the second alignment mark 5, thus affecting the alignment accuracy. As shown in Figure 6, the heat dissipation film 2 includes a metal layer 21, foam 22, and an adhesive layer 23. The foam 22 is located on the side of the display part 11 away from the cover plate 3, the adhesive layer 23 is located on the side of the foam 22 away from the cover plate 3, and the metal layer 21 is located on the side of the adhesive layer 23 away from the cover plate 3. The second alignment mark 5 is attached to the heat dissipation film 2. Specifically, when attaching the second alignment mark 5, the base film 501 can be bonded to the metal layer 21. The advantage of this setup is that it eliminates the need for additional processing steps, resulting in lower processing costs.
[0063] Alternatively, the second alignment mark 5 can be directly cut out from the metal layer 21, without cutting the foam 22 and adhesive layer 23. The second alignment mark 5 is then attached to the foam 22 via the adhesive layer 23. Since the foam 22 does not expose the display area 111, it avoids interference from electrostatic discharge and external light, thus preventing display defects and unevenness on the display panel 1. The advantage of this design is that it eliminates the need for a separate second alignment mark 5, thus not affecting the thickness of the display module.
[0064] As shown in Figures 7 to 10, an alignment opening 211 can also be provided on the metal layer 21. A second alignment mark 5 is provided on the adhesive layer 23 exposed within the alignment opening 211. The second alignment mark 5 is located on the adhesive layer 23 and can be cut separately from the incoming material. The advantage of this arrangement is that the alignment opening 211 can be pre-formed on the metal layer 21, and the approximate location of the second alignment mark 5 can be locked by the position of the alignment opening 211. Then, the second alignment mark 5 is attached to the adhesive layer 23. Compared to directly forming the second alignment mark 5 on the metal layer 21, the processing accuracy requirement of the alignment opening 211 is lower than that of the second alignment mark 5, making the setting of the second alignment mark 5 easier. Compared to directly bonding it to the metal layer 21, the second alignment mark 5 can be directly bonded within the alignment opening 211. The alignment accuracy requirement during bonding is lower, and the thickness of the second alignment mark 5 is usually less than the thickness of the metal layer 21, so it will not affect the thickness of the display module.
[0065] As shown in Figures 8 and 9, to avoid affecting the strength of the heat dissipation film 2, the alignment opening 211 can be located at the edge of the display section 11. Since the foam 22 is not cut, it can shield the edge of the display area 111, so there is no need to consider the problem of exposing the display area 111. To further reduce the impact on the strength of the heat dissipation film 2, the size of the alignment opening 211 can be reduced, and the second alignment mark 5 can be a T-shaped structure. The second alignment mark 5 includes a first alignment part 51 and a second alignment part 52. The first alignment part 51 extends along the second direction, and the second alignment part 52 extends along the first direction. The first alignment part 51 is located on the side of the second alignment part 52 away from the edge of the display section 11. That is, the first alignment part 51 is set at a wider position of the alignment opening 211, and the second alignment part 52 extends towards the bottom of the alignment opening 211. This maximizes the use of the alignment opening 211 and avoids making the alignment opening 211 too large.
[0066] As shown in Figures 11 to 17, the display portion 11 includes a first side extending in a first direction and a second side extending in a second direction. A lug 13 is provided on the lower part of the first side of the display portion 11, and a second alignment mark 5 is provided on the lug 13. Other positions of the lower part of the second alignment edge 54 of the display portion 11 remain straight edges. The distance between the edge of the lug 13 and the edge of the display portion 11 in the second direction is 0.5–2 mm, and the distance between the edge of the lug 13 and the edge of the bent portion 12 in the first direction is greater than or equal to 10 mm. It should be noted that the lug 13 and the bent portion 12 are formed simultaneously in a single cutting process, without increasing additional process costs.
[0067] As shown in Figures 11 and 12, the lug 13 may include a first protrusion 131 and a second protrusion 132 arranged sequentially along a direction away from the display unit 11. The width of the second protrusion 132 is greater than the width of the first protrusion 131. The second alignment mark 5 has a T-shaped structure, and the second alignment mark includes a first alignment part 51 and a second alignment part 52. The first alignment part 51 is disposed on the first protrusion 131, and the second alignment part 52 is disposed on the second protrusion 132. The first alignment part 51 extends along a second direction, and the second alignment part 52 extends along a first direction. The advantage of this arrangement is that while achieving effective alignment between the second alignment mark 5 and the first alignment mark 4, the space occupied by the lug 13 can be minimized, avoiding any impact on the bezel width of the display module.
[0068] As shown in Figures 13 to 16, the lug 13 includes a first protrusion 131 and a second protrusion 132 arranged sequentially in the direction away from the display part 11. The width of the first protrusion 131 gradually increases in the direction away from the display part 11, and the width of the second protrusion 132 gradually decreases in the direction away from the display part 11. The shape of the second alignment mark 5 can be pentagonal. The second alignment mark 5 has two first alignment sides 53 and two second alignment sides 54. The two first alignment sides 53 are arranged opposite to each other and close to the display part 11, and the two second alignment sides 54 are arranged opposite to each other and away from the display part 11. The two first alignment sides 53 are provided on the first protrusion 131, and the two second alignment sides 54 are provided on the second protrusion 132.
[0069] As shown in Figures 13 and 14, when the width of the first protrusion 131 increases uniformly in the direction away from the display portion 11, the two opposite sides of the first protrusion 131 are straight edges. When the width of the second protrusion 132 increases uniformly in the direction away from the display portion 11, the two opposite sides of the second protrusion 132 are straight edges. The two sides of the first protrusion 131 are parallel to the two first alignment edges 53, and the two sides of the second protrusion 132 are parallel to the two second alignment edges 54. At this time, the shape of the second alignment mark 5 can be set as a pentagon, that is, the second alignment mark 5 can also include a third alignment edge 55. The two ends of the third alignment edge 55 are connected to the two first alignment edges 53, respectively. The setting position of the two first alignment edges 53 can be better determined by the distance between the third alignment edge 55 and the two opposite sides of the first protrusion 131.
[0070] As shown in Figures 15 and 16, to prevent stress concentration during the cutting process that could cause the lug 13 to break, the edge of the lug 13 is made arc-shaped. The increase in width of the first protrusion 131 gradually decreases in the direction away from the display part 11, while the decrease in width of the second protrusion 132 gradually increases in the direction away from the display part 11. Similarly, to minimize the space occupied, the shape of the second alignment mark 5 can be made quadrilateral or pentagonal, so that the outline of the second alignment mark 5 is basically similar to the outline of the lug 13.
[0071] As shown in Figure 17, the lug 13 can also be made rectangular for ease of processing. To prevent the lug 13 from breaking due to stress concentration, the two corners of the protrusion away from the display part 11 are rounded, and the connection between the protrusion and the display part 11 is made into a smooth transition.
[0072] As shown in Figure 18, in the above embodiment, the display part 11 is provided with at least one pair of lugs 13. Each pair of lugs 13 includes two lugs 13, which are symmetrically arranged on both sides of the bent part 12. Each lug 13 is provided with a second alignment mark 5. The first alignment mark 4 can be aligned with the two second alignment marks 5 at the same time, which can ensure that the bending amount on both sides of the bent part 12 is consistent and avoid the bent part 12 from being bent off-center.
[0073] It should be noted that in the embodiments shown in Figures 11 to 18, since the lug 13 is located at a local position on the lower edge of the display portion 11 and has a certain distance from the bent portion 12 along the first direction, the starting bending point of the bent portion 12 is not affected. Furthermore, its size in the second direction is much smaller than the arc radius of the bent portion 12, so the lug 13 does not affect the bending radius of the bent portion 12. Since neither the starting bending point nor the bending radius is affected, it does not affect the narrowing of the display module's bezel.
[0074] As shown in Figure 19, the area where the orthographic projection of the display unit 11 onto the cover plate 3 does not overlap with the cover plate 3 is provided with light-shielding ink 31. A second alignment mark 5 is provided on the light-shielding ink 31, thus preventing interference between the second alignment mark 5 and the display unit 11. The color of the second alignment mark 5 differs from the color of the light-shielding ink 31. Since the light-shielding ink 31 is typically black, the second alignment mark 5 can be white, resulting in a high contrast between the colors of the second alignment mark 5 and the light-shielding ink 31.
[0075] It should be noted that the shape of the second alignment mark 5 is not limited to the T-shaped structure, quadrilateral or pentagonal structure mentioned above, but can also be a "cross" or other shapes.
[0076] It should be noted that the first direction is the x-direction shown in Figures 2, 7, 8, 11, 13, 15 and 17 to 19, and the second direction is the y-direction shown in Figures 2, 7, 8, 11, 13, 15 and 17 to 19.
[0077] This invention also provides a display device, 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 module have already been described in detail above, and therefore will not be repeated here.
[0078] It should be noted that, in addition to the display module, the display device also includes other necessary components and parts, such as the casing, circuit board, power cord, etc. Those skilled in the art can make corresponding additions according to the specific usage requirements of the display device, which will not be elaborated here.
[0079] Display devices can also be emerging wearable devices, such as virtual reality and augmented reality devices, or traditional electronic devices, such as mobile phones, computers, televisions, and video recorders. These will not be listed exhaustively here.
[0080] Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure 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 disclosed 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, wherein, include: The display panel includes a display section and a bent section, the bent section being connected to the edge of the display section, and a first alignment mark being provided on the bent section; A heat dissipation film is disposed on the non-display side of the display panel; A cover plate is disposed on the side of the display panel away from the heat dissipation film; The display section is provided with a lug, and the lug is provided with a second alignment mark, or the heat dissipation film is provided with a second alignment mark, or the area of the cover plate that does not overlap with the display panel is provided with a second alignment mark.
2. The display module according to claim 1, wherein, The display portion includes a first side extending along a first direction and a second side extending along a second direction. The bent portion is connected to the first side of the display portion, and the lug protrudes relative to the first side of the display portion along the second direction.
3. The display module according to claim 1, wherein, The display section is provided with at least one pair of lugs, each pair of lugs including two lugs, the two lugs being symmetrically arranged on both sides of the bent section, and each lug being provided with a second alignment mark.
4. The display module according to claim 2, wherein, The distance between the edge of the lug and the furthest point from the display unit in the second direction is 0.5 to 2 mm.
5. The display module according to claim 2, wherein, The distance between the edge of the lug and the edge of the bend in the first direction is greater than or equal to 10 mm.
6. The display module according to claim 2, wherein, The lug includes a first protrusion and a second protrusion arranged sequentially along a direction away from the display portion. The width of the second protrusion is greater than the width of the first protrusion. The second alignment mark is a T-shaped structure. The second alignment mark includes a first alignment portion and a second alignment portion. The first alignment portion is disposed on the first protrusion, and the second alignment portion is disposed on the second protrusion. The first alignment portion extends along the second direction, and the second alignment portion extends along the first direction.
7. The display module according to claim 1, wherein, The lug includes a first protrusion and a second protrusion arranged sequentially in a direction away from the display portion. The width of the first protrusion gradually increases in the direction away from the display portion, and the width of the second protrusion gradually decreases in the direction away from the display portion. The second alignment mark is polygonal in shape and has two first alignment sides and two second alignment sides. The two first alignment sides are arranged opposite to each other and close to the display portion, and the two second alignment sides are arranged opposite to each other and away from the display portion. The two first alignment sides are located on the first protrusion, and the two second alignment sides are located on the second protrusion.
8. The display module according to claim 7, wherein, The width of the first protrusion increases uniformly in the direction away from the display portion, so that the two opposite sides of the first protrusion are straight edges. The width of the second protrusion increases uniformly in the direction away from the display portion, so that the two opposite sides of the second protrusion are straight edges. The two sides of the first protrusion are parallel to the two first alignment edges, and the two sides of the second protrusion are parallel to the two second alignment edges.
9. The display module according to claim 7, wherein, The increase in width of the first protrusion gradually decreases in the direction away from the display portion, the decrease in width of the second protrusion gradually increases in the direction away from the display portion, and the shape of the second alignment mark is a quadrilateral or a pentagon.
10. The display module according to claim 1, wherein, The second alignment mark is disposed on the heat dissipation film, which includes a metal layer, foam and an adhesive layer. The foam is disposed on the side of the display part away from the cover plate, the adhesive layer is disposed on the side of the foam away from the cover plate, and the metal layer is disposed on the side of the adhesive layer away from the cover plate.
11. The display module according to claim 10, wherein, The second alignment mark is formed by cutting the metal layer.
12. The display module according to claim 10, wherein, The second alignment mark is adhered to the side of the metal layer away from the display portion.
13. The display module according to claim 12, wherein, The second alignment mark includes a base film, an alignment layer, and a protective film. The alignment layer is disposed on the side of the base film away from the heat dissipation film, and the protective film is disposed on the side of the alignment layer away from the heat dissipation film.
14. The display module according to claim 10, wherein, The distance between the edge of the second pair of marks and the edge of the heat dissipation film in the second direction is 0.2 to 2 mm.
15. The display module according to claim 10, wherein, The metal layer has an alignment opening, and the alignment opening contains a second alignment mark, which is located on the adhesive layer.
16. The display module according to claim 15, wherein, The alignment opening is located at the edge of the display portion, and the two alignment marks include a first alignment portion and a second alignment portion. The first alignment portion extends along a second direction, and the second alignment portion extends along a first direction. The first alignment portion is located on the side of the second alignment portion away from the edge of the display portion.
17. The display module according to claim 1, wherein, The area where the display unit's orthographic projection on the cover plate does not overlap with the cover plate is provided with light-shielding ink. The light-shielding ink is provided with a second alignment mark, the color of which is different from the color of the light-shielding ink.
18. A display device, wherein, Includes the display panel as described in any one of claims 1 to 17.