Display module and display device

Abstract

Disclosed is a display module, comprising a flexible display panel, a support plate, a transparent support structure and a light shielding part. The flexible display panel comprises a display surface, and the display surface comprises a light-transmitting region. The support plate is located on the side of the flexible display panel away from the display surface, and the support plate has a light-transmitting hole. The transparent support structure is filled in the light-transmitting hole, and the orthogonal projection of the transparent support structure on the display surface at least partially overlaps with the light-transmitting region. The light shielding part is located on at least part of the side wall of the light-transmitting hole.

Description

Technical Field

[0001] This disclosure relates to the field of display technology, and in particular to a display module and display device. Background Technology

[0002] With the rapid development of the display industry, various types of flexible display panels, such as curved, folded, irregularly shaped, and rollable panels, have become highly sought after in the market. Flexible display panels generally use flexible materials as the substrate and require support components on the back of the panel to provide support.

[0003] However, since the support components are generally made of opaque materials, they cannot meet the light requirements of the camera, which greatly limits the use of under-display cameras. Summary of the Invention

[0004] On one hand, a display module is provided. The display module includes a flexible display panel, a support plate, a transparent support structure, and a light-shielding portion. The flexible display panel includes a display surface, which contains a light-transmitting area. The support plate is located on the side of the flexible display panel opposite to the display surface; the support plate has a light-transmitting hole. The transparent support structure fills the light-transmitting hole; the orthographic projection of the transparent support structure on the display surface at least partially overlaps with the light-transmitting area. The light-shielding portion is located on at least a portion of the sidewall of the light-transmitting hole.

[0005] In some embodiments, the display module further includes an anti-reflective and anti-reflective layer. The anti-reflective and anti-reflective layer is located within the light-transmitting aperture. The anti-reflective and anti-reflective layer is stacked with the transparent support structure.

[0006] In some embodiments, the anti-reflective coating is located on the side of the transparent support structure closest to the flexible display panel.

[0007] In some embodiments, the antireflective coating includes at least two first refractive layers and at least one second refractive layer, wherein the second refractive layer is located between two adjacent first refractive layers. The refractive index of the first refractive layer is less than the refractive index of the second refractive layer.

[0008] In some embodiments, the display module further includes a transparent protective layer. The transparent protective layer is located on the side of the support plate opposite to the flexible display panel. The orthogonal projection of the transparent protective layer onto the support plate covers the light-transmitting hole.

[0009] In some embodiments, the minimum distance between the boundary of the orthographic projection of the transparent protective layer on the support plate and the light-transmitting hole is greater than or equal to 0.5 mm.

[0010] In some embodiments, the modulus of the transparent protective layer ranges from 8 MPa to 100 MPa.

[0011] In some embodiments, the thickness of the transparent protective layer gradually decreases from the center to the edge of the transparent protective layer.

[0012] In some embodiments, the maximum thickness of the transparent protective layer is d0, where 20μm≤d0≤50μm.

[0013] In some embodiments, the support plate includes a first metal layer. The thickness of the first metal layer is d1, where 80 μm ≤ d1 ≤ 300 μm.

[0014] In some embodiments, the support plate includes a second metal layer and an auxiliary support layer. The auxiliary support layer is located on the side of the second metal layer closest to the flexible display panel. The unit weight of the auxiliary support layer is less than the unit weight of the second metal layer. The sum of the thickness of the second metal layer and the thickness of the auxiliary support layer is d2, where 80 μm ≤ d2 ≤ 300 μm.

[0015] In some embodiments, the auxiliary support layer is made of carbon fiber.

[0016] In some embodiments, the display module further includes a first adhesive layer, a second adhesive layer, and a transparent elastomer layer stacked together. The transparent elastomer layer is located between the first adhesive layer and the second adhesive layer, and the first adhesive layer is located on the side of the transparent elastomer layer closer to the support plate. The light transmittance of the transparent elastomer layer is greater than or equal to 95%.

[0017] In some embodiments, the elastic modulus of the transparent elastomer layer ranges from 40 MPa to 500 MPa.

[0018] In some embodiments, the material of the transparent elastomer layer includes at least one of thermoplastic polyurethane elastomer, thermoplastic elastomer, or thermoplastic polyester elastomer.

[0019] In some embodiments, the display module further includes a light-concentrating layer. The light-concentrating layer includes a plurality of spaced-apart microlenses. The plurality of microlenses are located between the transparent elastomer layer and the first adhesive layer or the second adhesive layer. The orthographic projections of the plurality of microlenses on the display surface and the orthographic projections of the transparent support structure on the display surface at least partially overlap.

[0020] In some embodiments, the plurality of microlenses are located between the transparent elastomer layer and the second adhesive layer. At least one of the microlenses comprises multiple layers of optical films stacked together. Among two adjacent optical films, the refractive index of the optical film closer to the support plate is lower than the refractive index of the optical film away from the support plate; and among the multiple optical films, the refractive index of the optical film closest to the support plate is greater than the refractive index of the transparent elastomer layer.

[0021] In some embodiments, the material of the transparent support structure includes at least one of ultrathin glass, polyethylene terephthalate, polymethyl methacrylate, or polycarbonate.

[0022] In some embodiments, the dimension of the light-shielding portion is d3 in the direction along the transparent support structure toward the support plate, where 0.1mm≤d3≤1mm.

[0023] In some embodiments, the support plate includes a first support portion, a second support portion, and a bendable portion located between the first support portion and the second support portion. The bendable portion has a plurality of grooves; and the light-transmitting hole is located in the first support portion and / or the second support portion.

[0024] On the other hand, a display device is provided. The display device includes a display module and optical components as described in any of the above embodiments. The optical components are located on the side of the support plate opposite to the flexible display panel, and the orthographic projection of the optical components on the support plate at least partially overlaps with the light-transmitting hole. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in this disclosure, the accompanying drawings used in some embodiments of this disclosure will be briefly described below. Obviously, the drawings described below are only drawings of some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams and are not intended to limit the actual size of the product, the actual flow of the method, the actual timing of the signals, etc. involved in the embodiments of this disclosure.

[0026] Figure 1 This is a structural diagram of a display module provided in some embodiments of the present disclosure;

[0027] Figure 2 for Figure 1 A cross-sectional structural diagram at point A-A';

[0028] Figure 3 This is a structural diagram of a flexible display panel provided in some embodiments of the present disclosure;

[0029] Figure 4 for Figure 1 Another cross-sectional structural diagram at point A-A';

[0030] Figure 5 for Figure 1 Another cross-sectional structural diagram at point A-A';

[0031] Figure 6 for Figure 1 Another cross-sectional structural diagram at point A-A';

[0032] Figure 7 for Figure 1 Another cross-sectional structural diagram at point A-A';

[0033] Figure 8 for Figure 1 Another cross-sectional structural diagram at point A-A';

[0034] Figure 9 for Figure 1 Another cross-sectional structural diagram at point A-A';

[0035] Figure 10 for Figure 1 Another cross-sectional structural diagram at point A-A';

[0036] Figure 11 for Figure 10 A structural diagram of a microlens;

[0037] Figure 12A A structural diagram of a support plate provided in some embodiments of this disclosure;

[0038] Figure 12B A structural diagram of yet another support plate provided in some embodiments of this disclosure;

[0039] Figure 12C A structural diagram of yet another support plate provided in some embodiments of this disclosure;

[0040] Figure 12D A structural diagram of yet another support plate provided in some embodiments of this disclosure;

[0041] Figure 13 for Figure 1 Another cross-sectional structural diagram at point A-A';

[0042] Figure 14 for Figure 1 Another cross-sectional structural diagram at point A-A';

[0043] Figure 15 A flowchart of a display module provided for some embodiments of this disclosure;

[0044] Figure 16 This is a cross-sectional structural diagram of a display device provided for some embodiments of this disclosure. Detailed Implementation

[0045] The technical solutions in some embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments provided in this disclosure are within the scope of protection of this disclosure.

[0046] Unless the context otherwise requires, throughout the specification and claims, the term "comprise" and its other forms, such as the third-person singular "comprises" and the present participle "comprising," are interpreted as open-ended and encompassing, meaning "including, but not limited to." In the description of the specification, terms such as "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific example," or "some examples," etc., are intended to indicate that a particular feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of this disclosure. The illustrative representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics mentioned may be included in any suitable manner in any one or more embodiments or examples.

[0047] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0048] "At least one of A, B and C" has the same meaning as "at least one of A, B or C", both including the following combinations of A, B and C: only A, only B, only C, combinations of A and B, combinations of A and C, combinations of B and C, and combinations of A, B and C.

[0049] "A and / or B" includes the following three combinations: A only, B only, and a combination of A and B.

[0050] In addition, the use of “based on” implies openness and inclusivity, because processes, steps, calculations or other actions “based on” one or more of the stated conditions or values ​​may in practice be based on additional conditions or values ​​beyond those stated.

[0051] As used herein, “approximately” or “about” includes the stated value and the average value within an acceptable range of deviation from the given value, wherein the acceptable range of deviation is determined by a person skilled in the art taking into account the measurement under discussion and the error associated with the measurement of the given quantity (i.e., the limitations of the measurement system).

[0052] It should be understood that when a layer or element is referred to as being on another layer or substrate, it can mean that the layer or element is directly on the other layer or substrate, or that there is an intermediate layer between the layer or element and the other layer or substrate.

[0053] This document describes exemplary embodiments with reference to cross-sectional views and / or plan views, which are idealized exemplary drawings. In the drawings, the thickness of layers and regions is enlarged for clarity. Therefore, variations in shape relative to the drawings are contemplated due to, for example, manufacturing techniques and / or tolerances. Thus, exemplary embodiments should not be construed as limited to the shapes of the regions shown herein, but rather include shape deviations due to, for example, manufacturing processes. For example, etched regions shown as rectangular would typically have curved features. Therefore, the regions shown in the drawings are schematic in nature, and their shapes are not intended to show the actual shapes of the regions of the device, nor are they intended to limit the scope of the exemplary embodiments.

[0054] Figure 1 This is a structural diagram of a display module provided in some embodiments of the present disclosure. Figure 2 for Figure 1 A cross-sectional structural diagram at point A-A'. (See reference...) Figure 1 and Figure 2 As shown, some embodiments of this disclosure provide a display module 100, which includes a flexible display panel 10, a support plate 20, a transparent support structure 30, and a light-shielding part 40.

[0055] like Figure 1 As shown, the flexible display panel 10 includes a display surface 11, which contains a light-transmitting region Q. Here, the light-transmitting region Q is at least a portion of the display surface 11 of the flexible display panel 10. Figure 1 The illustration takes an example where the light-transmitting area Q is located on the display surface 11 away from the lower edge of the display module 100. It is understood that in other embodiments, the light-transmitting area Q may also be located on the display surface 11 near the lower edge of the display module 100.

[0056] For example, the flexible display panel 10 includes an organic light-emitting diode (OLED), a quantum dot light-emitting diode (QLED), or a micro light-emitting diode (Micro-LED).

[0057] Figure 3 This is a structural diagram of a flexible display panel provided for some embodiments of this disclosure. See also... Figure 3 As shown, the flexible display panel 10 includes a pixel driving circuit P and multiple light-emitting devices O. The pixel driving circuit P drives the light-emitting devices O to emit light, enabling the flexible display panel 10 to display images. It is understood that the aforementioned light-transmitting area Q is used for image capture during the imaging stage, and during the display stage, it displays images synchronously with other areas of the display surface 11.

[0058] in, Figure 3 The illustration takes the pixel driving circuit P and multiple light-emitting devices O at locations other than the light-transmitting area Q on the display surface 11 as an example. The pixel driving circuit P in the light-transmitting area Q is connected and driven in the same way as the light-emitting devices Q. The pixel density (Pixels Per Inch, PPI) in the light-transmitting area Q is lower than the pixel density at other locations on the display surface 11 in order to meet the light transmittance requirements of the under-display camera.

[0059] For example, the light-transmitting area Q can be a camera area or a fingerprint recognition area, etc. The following text only takes the light-transmitting area Q as a camera area as an example, and the same applies to fingerprint recognition.

[0060] like Figure 2 As shown, the support plate 20 is located on the side of the flexible display panel 10 opposite to the display surface 11, and the support plate 20 has a light-transmitting hole 21. The support plate 20 can support the flexible display panel 10, and image light can be transmitted to the under-display camera through the light-transmitting hole 21 to realize the full-screen design of the display module 10.

[0061] in, Figure 2 The illustration is given by taking the example where the boundary of the orthographic projection of the light-transmitting region Q onto the plane of the support plate 20 overlaps with the boundary of the light-transmitting hole 21. It is understood that in some other embodiments, the orthographic projection of the light-transmitting region Q onto the plane of the support plate 20 may cover the light-transmitting hole 21 or overlap with a portion of the light-transmitting hole 21.

[0062] In some of the above implementation methods, in order to meet the requirements of the under-display camera, a light-transmitting hole 30 is set on the light-transmitting support plate 20 that cannot transmit light. However, due to the insufficient strength of each film layer of the flexible display panel 10, when the support plate 20 and the flexible display panel 10 are bonded together, the light-emitting surface 11 of the flexible display panel 10 at the position corresponding to the light-transmitting hole 21 will form a depression. This will cause the light-emitting surface 11 of the flexible display panel 10 corresponding to the light-transmitting hole 21 to be clearly visible with appearance defects such as molding and indentation.

[0063] The present disclosure provides a display module 100 in some embodiments, which can be further described in the following sections. Figure 2 As shown, a transparent support structure 30 is filled inside the light-transmitting hole 21. The orthographic projection of the transparent support structure 30 on the display surface 11 at least partially overlaps with the light-transmitting area Q. The transparent support structure 30 can be combined with the support plate 20 to support the flexible display panel 10, thereby reducing or eliminating the molding problem of the display module 100 caused by the lack of force at the position of the light-transmitting hole 21.

[0064] in, Figure 2 The illustration is given by taking the example where the surface of the transparent support structure 30 near the flexible display panel 10 is flush with the surface of the support plate 20 near the flexible display panel 10, and the surface of the transparent support structure 30 away from the flexible display panel 10 is flush with the surface of the support plate 20 away from the flexible display panel 10. This is to further ensure that the transparent support structure 30 completely fills the through hole 21, thereby reducing or eliminating the molding problem of the display module 100 caused by the lack of force at the position of the through hole 21.

[0065] It is understood that in some other embodiments, the surface of the transparent support structure 30 near the flexible display panel 10 is flush with the surface of the support plate 20 near the flexible display panel 10, and the surface of the transparent support structure 30 away from the flexible display panel 10 is located in the light-transmitting hole 21; or, the surface of the transparent support structure 21 near the flexible display panel 10 is located in the light-transmitting hole 21, and the surface of the transparent support structure 30 away from the flexible display panel 10 is flush with the surface of the support plate 20 away from the flexible display panel 10; or, both the surface of the transparent support structure 21 near the flexible display panel 10 and the surface of the transparent support structure 30 away from the flexible display panel 10 are located in the light-transmitting hole 21.

[0066] Due to the existence of certain uncontrollable errors, the aforementioned "flushness" includes both absolute and near-flushness between one side surface of the transparent support structure 30 and one side surface of the support plate 20. That is, the fluctuation range of the step difference between one side surface of the transparent support structure 30 and one side surface of the support plate 20 does not exceed the error threshold, and the two surfaces can be considered relatively "flush". The error threshold can be, for example, 0.5 mm.

[0067] Figure 4 for Figure 1 Another cross-sectional structural diagram at point A-A'. (See also...) Figure 4 As shown, the flexible display panel 10 includes a substrate 00, a driving circuit layer 01, a light-emitting device layer 02, a pixel defining layer 06, and an encapsulation layer 07. The driving circuit layer 01 drives the light-emitting devices in the light-emitting device layer 02 to emit light for display. The light-emitting device layer 02 includes multiple light-emitting devices O' located in the light-transmitting region Q, and light-emitting devices O located in areas of the display surface other than the light-transmitting region Q. Both light-emitting devices O and O' include an anode layer 03, a cathode layer 05, and a light-emitting layer 04 located between the anode layer 03 and the cathode layer 05.

[0068] For example, the size of the light-emitting device O' is smaller than the size of the light-emitting device O. This can improve the light transmittance of the light-transmitting region Q.

[0069] For example, the density among multiple light-emitting devices O' needs to be less than the density among multiple light-emitting devices O. This can improve the light transmittance of the light-transmitting region Q.

[0070] in, Figure 4 The illustration uses multiple light-emitting devices O of the same size as an example. It should be noted that in some embodiments, when the light-emitting devices O include red, green, and blue light-emitting devices, the luminous efficiency of the light-emitting layer O4 in the blue light-emitting device is the lowest, followed by the light-emitting layer O4 in the red light-emitting device, and the light-emitting layer O4 in the green light-emitting device has the highest luminous efficiency. Therefore, the size of the blue light-emitting device can be set to be the largest, followed by the red light-emitting device, and the green light-emitting device to be the smallest, which helps to improve the color shift problem of the display module 100. The same theory applies to the light-emitting device O' at the light-transmitting area Q, and will not be elaborated further here.

[0071] Continue reading Figure 4 As shown, the light-shielding part 40 is located on at least a portion of the sidewall 211 of the light-transmitting hole 21. Light L1 emitted by the light-emitting device O enters the light-shielding part 40 within the light-transmitting hole 21, and light L2 emitted by the light-emitting device O' may also enter the light-shielding part 40 within the light-transmitting hole 21. The light-shielding part 40 can absorb both light L1 and light L2. This improves the light leakage problem at the location of the light-transmitting hole 21 on the support plate 20. Furthermore, since the anode layer 03 in the light-emitting device O' is located between the light-emitting layer 04 and the light-transmitting hole 21, and the anode layer 03 is generally made of metal, light L3 emitted vertically downwards by the optical device O' will be reflected out of the display module 100 by its corresponding anode layer 03. Therefore, the anode layer 03 can be used to prevent the light L3 emitted by the optical device O' from affecting the imaging effect.

[0072] The light-shielding part 40 is located on at least a portion of the sidewall 211 of the light-transmitting hole 21. The light-shielding part 40 can be a closed-loop structure, surrounding the entire transparent support structure 30; or, the light-shielding part 40 can be a non-closed-loop structure, surrounding a portion of the transparent support structure 30. Both structures of the light-shielding part 40 can improve the light leakage problem at the location of the light-transmitting hole 21.

[0073] For example, the light-shielding part 40 can be a light-shielding adhesive. On the one hand, the light-shielding adhesive can improve the light leakage problem at the light-transmitting hole 21; on the other hand, the light-shielding adhesive can also be used to fix the transparent support structure 30 and the support plate 20, preventing the transparent support structure 30 from falling off the support plate 20, which is beneficial to improving the yield of the display module 100.

[0074] For example, the light-blocking adhesive can be at least one adhesive material such as epoxy resin, silicone, or methyl methacrylate. It can simultaneously achieve the functions of light blocking and fixing the transparent support structure 30.

[0075] In summary, the display module 100 provided in some embodiments of this disclosure fills the light-transmitting hole 21 with a transparent support structure 30. The transparent support structure 30 does not significantly affect the light transmittance of the light-transmitting hole 21, meeting the normal requirements of the under-display camera; it can also be combined with the support plate 20 to support the flexible display panel 10, thereby reducing or eliminating molding problems caused by the lack of force at the light-transmitting hole 21. Furthermore, a light-shielding portion 40 is provided on at least a portion of the sidewall 211 of the light-transmitting hole 21. The light-shielding portion 40 can block the light emitted by the light-emitting device O inside the flexible display panel 10 from entering the light-transmitting hole 21, improving the light leakage problem at the light-transmitting hole 21 location on the support plate 20.

[0076] In some embodiments, continue reading Figure 2 As shown, the material of the transparent support structure 30 includes at least one of ultrathin glass, polyethylene terephthalate, polymethyl methacrylate, or polycarbonate.

[0077] For example, the transparent support structure 30 can be made of any one of ultra-thin glass, polyethylene terephthalate, polymethyl methacrylate, or polycarbonate, or any combination of two or more materials. Filling it into the light-transmitting hole 21 can both support the flexible display panel 100 to prevent molding and effectively improve the light transmittance within the light-transmitting hole 21.

[0078] In some embodiments, continue reading Figure 2 As shown, in the direction from the transparent support structure 30 to the support plate 20, the size of the light-shielding part 40 is d3, 0.1mm≤d3≤1mm.

[0079] When the size of the light-shielding part 40 is equal to or close to 0.1mm, the light-shielding part 40 is relatively narrow. At this time, the transparent support structure 30 can be fixed by the light-shielding part 40, and the light-shielding part 40 can absorb the interference light generated in the flexible display panel 10. It can also reduce the obstruction of image light that needs to pass through the light-transmitting hole 21 by the light-shielding part 40, improve the transmittance of image light, and improve the imaging quality. When the size of the light-shielding part 40 is equal to or close to 1mm, the light-shielding part 40 is relatively wide. At this time, it can allow enough image light to pass through the light-transmitting hole, and can more effectively absorb interference light and bond and fix the transparent support structure 30, preventing the transparent support structure 30 from falling off the support plate 20, thereby improving the yield of the display module 100.

[0080] For example, the dimension of the light-shielding part 40 in the horizontal direction can be 0.1mm, 0.3mm, 0.5mm or 1mm.

[0081] Figure 5 for Figure 1 Another cross-sectional structural diagram at point A-A'. See also: [Image of cross-sectional structure at point A-A'] in some embodiments. Figure 5 and combination Figure 1 As shown, the display module 100 also includes an anti-reflective and anti-reflective layer 50. The anti-reflective and anti-reflective layer 50 is located within the light-transmitting aperture 21. The anti-reflective and anti-reflective layer 50 is stacked with the transparent support structure 30.

[0082] In some embodiments, an anti-reflection and anti-reflection layer 50 is provided inside the light-transmitting hole 21, opposite to the transparent support structure 30. The anti-reflection and anti-reflection layer 50 can be used to increase the light transmittance inside the light-transmitting hole 21, thereby greatly increasing the amount of external light entering the light-transmitting area Q, achieving the purpose of improving the front-facing camera effect and the accuracy of face recognition.

[0083] For example, Figure 5 The illustration takes an example where the anti-reflective coating 50 is located on the side of the transparent support structure 30 closest to the flexible display panel 10. It is understood that in other embodiments, the anti-reflective coating 50 may be sandwiched between two layers of transparent support structure 30, or the anti-reflective coating 50 may be located on the side of the transparent support structure 30 opposite to the flexible display panel 10. Figure 5 The relative positional relationship between the antireflective and anti-reflective layer 50 and the transparent support structure 30 shown can further increase the light transmittance within the light-transmitting hole 21 compared to the relative positional relationship between the antireflective and anti-reflective layer 50 and the transparent support structure 30 in other embodiments.

[0084] Figure 6 for Figure 1 Another cross-sectional structural diagram at point A-A'. See also: [Image of cross-sectional structure at point A-A'] in some embodiments. Figure 6 and combination Figure 1As shown, the antireflective coating 50 includes at least two first refractive layers 51 and at least one second refractive layer 52. The second refractive layer 52 is located between two adjacent first refractive layers 51. The refractive index of the first refractive layer 51 is less than the refractive index of the second refractive layer 52.

[0085] For example, the antireflective coating 50 includes alternating layers of a first refractive layer 51 and a second refractive layer 52. Among the multiple layers of the antireflective coating 50, the layer closest to the flexible display panel 10 and the support plate 20 is the first refractive layer 51; that is, the outermost layers on both the top and bottom of the antireflective coating 50 are both first refractive layers 51. Based on this structure, the refractive index of the first refractive layer 51 is set to be less than the refractive index of the second refractive layer 52, and the refractive index of the first refractive layer 51 closest to the transparent support structure 30 is less than that of the transparent support structure 30. When external light is incident on the antireflective coating 50, a portion is reflected back on both surfaces of the coating, and the reflected light (two waves) interferes. The thickness of the first refractive layer 51 / second refractive layer 52 in any one of the antireflection and anti-reflection layers 50 is set to be at the nanometer level, which is 1 / 4 of the wavelength of visible light. The two reflected light waves will coherently cancel each other out, thereby achieving the antireflection effect and greatly increasing the amount of external light entering the light-transmitting area Q, thereby improving the front camera effect and the accuracy of face recognition.

[0086] in, Figure 6 The antireflective coating 50 is illustrated as an example comprising two first refractive layers 51 and one second refractive layer 52. It is understood that in other embodiments, the antireflective coating 50 may have a structure of 3, 5, 7, or more layers.

[0087] For example, the first refractive layer 51 can be silicon oxide, and the second refractive layer 52 can be niobium oxide.

[0088] For example, the antireflective coating 50 can be deposited on the transparent support structure 30 by vapor deposition. For instance, when the antireflective coating 50 includes two first refractive layers 51 and one second refractive layer 52, the first refractive layer 51 and the second refractive layer 52 can be deposited sequentially on the transparent support structure 30 by vapor deposition.

[0089] Figure 7 for Figure 1 Another cross-sectional structural diagram at point A-A'. See also: [Image of cross-sectional structure at point A-A'] in some embodiments. Figure 7 and combination Figure 1 As shown, the display module 100 also includes a transparent protective layer 60. The transparent protective layer 60 is located on the side of the support plate 20 opposite to the flexible display panel 10. The orthogonal projection of the transparent protective layer 60 on the support plate 20 covers the light-transmitting hole 21.

[0090] In some embodiments, a transparent protective layer 60 is formed on the side of the light-transmitting hole 21 facing away from the flexible display panel 10, and the surface of the transparent protective layer 60 facing away from the support plate 20 is a relatively smooth surface. This allows the transparent protective layer 60 to fill the recessed position 41 formed by the step difference between the inner film layer structures of the light-transmitting hole 21, thereby improving the molding problem of the display module 100 caused by the recessed position 41.

[0091] For example, since the light-shielding part 40 provided inside the light-transmitting hole 21 will shrink after curing, a recessed position 41 will be formed at the corresponding position of the light-shielding part 40. This recessed position 41 cannot bear force, which will cause molding problems when the flexible display panel 10 is subsequently bonded. Based on this, a transparent protective layer 60 can be provided on the side of the support plate 20 away from the flexible display panel 10, at the position of the light-transmitting hole 21. The surface of the transparent protective layer 60 near the support plate 20 can fill the recessed position 41, and the surface of the transparent protective layer 60 away from the support plate 20 is a relatively flat surface, thereby reducing or eliminating the molding effect caused by the light-shielding part 40.

[0092] For example, the material of the transparent protective layer 60 may include at least one of silicone or epoxy resin adhesive.

[0093] In some embodiments, continue Figure 7 As shown, the minimum distance L0 between the boundary of the orthographic projection of the transparent protective layer 60 on the support plate 20 and the light-transmitting hole 21 is greater than or equal to 0.5 mm.

[0094] A value of L0 greater than or equal to 0.5 mm ensures that the transparent protective layer 60 covers all light-transmitting holes 21, preventing molding problems caused by step differences within the light-transmitting holes 21. It also avoids errors during the fabrication of the transparent protective layer 60 that could prevent complete coverage of the light-transmitting holes 21, thus preventing unresolved molding problems. The orthographic projection of the transparent protective layer 60 onto the support plate 20 covers a portion of the support plate 20, and at least a portion of the remaining exposed area of ​​the support plate 20 can be used for grounding, facilitating the discharge of static electricity within the display module 100 and improving the yield rate of the display module 100.

[0095] For example, the minimum distance L0 between the boundary of the orthographic projection of the transparent protective layer 60 on the support plate 20 and the light-transmitting hole 21 can be 0.5mm, 0.8mm or 1mm, etc.

[0096] In some embodiments, continue reading Figure 7 As shown, the modulus of the transparent protective layer 60 ranges from 8 MPa to 100 MPa.

[0097] When the modulus of the cured transparent protective layer 60 is equal to or close to 8 MPa, the relatively small modulus prevents secondary molding problems in the display module 100 caused by a large modulus after curing. It also helps improve molding problems in the display module 100 caused by the light-transmitting hole 21. When the modulus of the cured transparent protective layer 60 is equal to or close to 100 MPa, the relatively large modulus further helps the transparent protective layer 60 improve molding problems in the display module 100.

[0098] For example, the modulus of the transparent protective layer 60 can be 8 MPa, 50 MPa or 100 MPa.

[0099] In some embodiments, continue reading Figure 7 As shown, the thickness of the transparent protective layer 60 gradually decreases from the center to the edge of the transparent protective layer 60.

[0100] For example, with the transparent protective layer 60 attached to the support plate 20 on the side closest to the support plate 20, the thickness of the transparent protective layer 60 is set to gradually decrease from the center of the transparent protective layer 60 to the edge until it becomes zero. The side of the transparent protective layer 60 away from the support plate 20 forms a relatively smooth interface, which can reduce the molding problem of the display module 100.

[0101] For example, a transparent protective layer 60 can be formed on the support plate 20 by spin coating. This further ensures that the thickness of the transparent protective layer 60 gradually decreases from its center to its edge. However, this is not a limitation, and other feasible methods can also be used.

[0102] in, Figure 7 The illustration is based on an example where the side of the transparent protective layer 60 facing away from the support plate 20 is arc-shaped. It is understood that in other embodiments, the side of the transparent protective layer 60 facing away from the support plate 20 may also be other shapes with varying thicknesses, and the shape of the transparent protective layer 60 is not specifically limited.

[0103] In some embodiments, continue reading Figure 7 As shown, the maximum thickness of the transparent protective layer 60 is d0, where 20μm≤d0≤50μm.

[0104] When the maximum thickness d0 of the transparent protective layer 60 is equal to or close to 20 μm, the thickness of the transparent protective layer 60 is relatively small, which facilitates the thinning of the display module 100. At the same time, the transparent protective layer 60 can also fill the recessed position 41 in the light-transmitting hole 21, improving the molding problem of the display module 100. When the maximum thickness d0 of the transparent protective layer 60 is equal to or close to 50 μm, the maximum thickness d0 of the transparent protective layer 60 is relatively large, which can facilitate the filling of the recessed position 41 in the light-transmitting hole 21, improving the molding problem of the display module 100.

[0105] For example, the maximum thickness d0 of the transparent protective layer 60 can be 20μm, 30μm, 40μm or 50μm.

[0106] In some embodiments, continue reading Figure 2 As shown, the support plate 20 includes a first metal layer 22. The thickness of the first metal layer 22 is d1, where 80μm≤d1≤300μm.

[0107] When the thickness of the first metal layer 22 is equal to or close to 80μm, the weight of the support plate 20 can be reduced while meeting the support force requirements of the support plate 20. When the thickness of the first metal layer 22 is equal to or close to 300μm, the support force of the support plate 20 can be met while avoiding excessive weight of the support plate 20, which would affect the usability of the display module 100 and ensure a good user experience.

[0108] For example, the first metal layer 22 can be made of stainless steel (SUS), copper, or titanium alloy, and the thickness of the first metal layer 22 can be 80μm, 100μm, 200μm, or 300μm.

[0109] Figure 8 for Figure 1 Another cross-sectional structural diagram at point A-A'. See also: [Image of cross-sectional structure at point A-A'] in some embodiments. Figure 8 and combination Figure 1 As shown, the support plate 20 includes a second metal layer 23 and an auxiliary support layer 24. The auxiliary support layer 24 is located on the side of the second metal layer 23 closest to the flexible display panel 10. The unit weight of the auxiliary support layer 24 is less than the unit weight of the second metal layer 23. The sum of the thickness of the second metal layer 23 and the thickness of the auxiliary support layer 24 is d2, where 80μm≤d2≤300μm.

[0110] In some embodiments, the support plate 20 includes a second metal layer 23 and an auxiliary support layer 24, and the sum of the thicknesses of the second metal layer 23 and the auxiliary support layer 24 ranges from 80 μm to 300 μm. When the sum of the thicknesses of the second metal layer 23 and the auxiliary support layer 24 is equal to or close to 80 μm, the support force of the support plate 20 can be satisfied while reducing its weight. When the sum of the thicknesses of the second metal layer 23 and the auxiliary support layer 24 is equal to or close to 300 μm, the support force of the support plate 20 can be satisfied while avoiding excessive weight, thus ensuring a good user experience. Based on this, by setting the unit weight of the auxiliary support layer 24 to be less than the unit weight of the second metal layer 23, the weight of the second metal layer 23 can be effectively reduced by adjusting the material of the support plate 20 and replacing part of the second metal layer 23 with the auxiliary support layer 24, while keeping the original thickness of the support plate 20 unchanged. This further reduces the weight of the support plate 20.

[0111] In addition, an auxiliary support layer 24 is provided on the side of the second metal layer 23 close to the flexible display panel 10, which facilitates grounding using the second metal layer, facilitates the discharge of static electricity inside the display module 100, and improves the yield of the display module 100.

[0112] For example, the material of the second metal layer 23 can be the same as that of the first metal layer 22, such as stainless steel (SUS), copper, or titanium alloy.

[0113] For example, the thickness of the second metal layer 23 can be 30μm, 50μm, or 100μm. When the thickness of the second metal layer 23 is equal to or close to 30μm, the thickness of the second metal layer 23 is relatively small, which can significantly reduce the weight of the support plate 20 while meeting the support force of the support plate 20.

[0114] In some embodiments, continue reading Figure 8 As shown, the support plate 20 may further include an adhesive layer 25. The adhesive layer 25 is located between the dual metal layer 23 and the auxiliary support layer 24. The adhesive layer 25 can be used to fix the dual metal layer 23 and the auxiliary support layer 24. For example, the adhesive layer 25 can be OCA optical adhesive (Optical Clear Adhesive).

[0115] In some embodiments, continue reading Figure 8 As shown, the auxiliary support layer 24 is made of carbon fiber. Carbon fiber possesses high strength and good thermal conductivity. Based on this, the support plate 20 includes a second metal layer 23 and carbon fiber. This can improve the heat dissipation performance of the support plate 20 while meeting its strength requirements and reducing its weight. Alternatively, the auxiliary support layer 24 can also be made of other materials, such as rubber.

[0116] Figure 9 for Figure 1 Another cross-sectional structural diagram at point A-A'. See also: [Image of cross-sectional structure at point A-A'] in some embodiments. Figure 9 and combination Figure 1 As shown, the display module 100 further includes a first adhesive layer 71, a second adhesive layer 72, and a transparent elastomer layer 80. The transparent elastomer layer 80 is located between the first adhesive layer 71 and the second adhesive layer 72, and the first adhesive layer 71 is located on the side of the transparent elastomer layer 80 closer to the support plate 20. The light transmittance of the transparent elastomer layer 80 is greater than or equal to 95%.

[0117] In some embodiments, the display module 100 further includes a transparent elastomer layer 80. The transparent elastomer layer 80 is located between the support plate 20 and the flexible display panel 10. Because the transparent elastomer layer 80 has a certain degree of elasticity and resilience, it can buffer the pressure during bonding and provide post-bonding recovery, reducing molding problems in the display module 100. Furthermore, since the transparent elastomer layer 80 has a light transmittance greater than or equal to 95%, it is a high-transmittance material, which helps to improve light transmittance and greatly increase the amount of external light entering the light-transmitting area Q, thereby improving the front-facing camera effect and facial recognition accuracy. Specifically, the transparent elastomer layer 80 is bonded to a first adhesive layer 71 and a second adhesive layer 72. The first adhesive layer 71 is bonded to the support plate 20, and the second adhesive layer 72 is bonded to the flexible display panel 10.

[0118] For example, the first adhesive layer 71 and the second adhesive layer 72 can both be OCA optical adhesive, but are not limited to this, and other adhesives can also be used to achieve the fixing effect.

[0119] In some embodiments, continue reading Figure 9 As shown, the elastic modulus of the transparent elastomer layer 80 ranges from 40 MPa to 500 MPa.

[0120] When the elastic modulus of the transparent elastomer layer 80 is equal to or close to 40 MPa, it can satisfy the function of buffering and shock absorption while effectively improving the mold imprinting problem of the display module 100. When the elastic modulus of the transparent elastomer layer 80 is equal to or close to 500 MPa, it can reduce or even eliminate the mold imprinting problem of the display module 100 while playing a good role in buffering and shock absorption.

[0121] For example, the elastic modulus of the transparent elastomer layer 80 can be 40MPa, 100MPa, 200MPa, or 400MPa. When the elastic modulus of the transparent elastomer layer 80 is 100MPa, it has better buffering and recovery performance compared to other elastic moduli, realizing the function of buffering the pressure during bonding and recovering after bonding, thus improving the molding problem of the display module 100.

[0122] Optionally, the thickness of the transparent elastomer layer 80 can be set within the range of 50μm to 200μm to avoid the transparent elastomer layer 80 being too thin or too thick, thus failing to provide cushioning and recovery. For example, the thickness of the transparent elastomer layer 80 can be 50μm, 100μm, or 200μm.

[0123] In some embodiments, continue reading Figure 9 As shown, the material of the transparent elastomer layer 80 includes any one of thermoplastic polyurethanes (TPU), thermoplastic rubber (TPE), or thermoplastic polyester elastomer (TPEE), or a combination of two or more of these materials. Furthermore, compared to traditional foam materials, the transparent elastomer layer 80 has a relatively large elastic modulus, resulting in better cushioning and recovery properties, thus reducing the molding problems of the display module 100.

[0124] For example, when the material of the transparent elastomer layer 80 is thermoplastic polyurethane (TPU), the material type can be Iwatani ISR-TPS50.

[0125] Figure 10 for Figure 1 Another cross-sectional structural diagram at point A-A'. See also: [Image of cross-sectional structure at point A-A'] in some embodiments. Figure 10 and combination Figure 1 As shown, the display module 100 also includes a light-concentrating layer 90. The light-concentrating layer 90 includes a plurality of spaced microlenses 91. The plurality of microlenses 91 are located between the transparent elastomer layer 80 and the first adhesive layer 71 or the second adhesive layer 72, and the orthographic projections of the plurality of microlenses 91 on the display surface 11 and the orthographic projections of the transparent support structure 30 on the display surface 11 at least partially overlap.

[0126] In some embodiments, the display module 100 further includes a light-concentrating layer 90. The light-concentrating layer 90 can concentrate light. By ensuring that the orthographic projection of the light-concentrating layer 90 on the display surface 11 and the orthographic projection of the transparent support structure 30 on the display surface 11 at least partially overlap, the light-concentrating effect at the location of the transparent support structure 30 can be improved. This satisfies the light transmittance requirements of the light-transmitting area Q of the display module 100 for the image, thereby improving image quality. Figure 10 Taking the example of multiple microlenses 91 located between the transparent elastomer layer 80 and the second adhesive layer 72, it can be understood that in some other embodiments, multiple microlenses 91 are located between the transparent elastomer layer 80 and the first adhesive layer 71.

[0127] In some embodiments, a light-concentrating layer 90 is formed on the side of the transparent elastomer layer 80 near the first adhesive layer 71 or near the second adhesive layer 72. The light-concentrating layer 90 can concentrate light. By setting the orthographic projection of the light-concentrating layer 90 on the display surface 11 and the orthographic projection of the transparent support structure 30 on the display surface 11 to at least partially overlap, the light-concentrating effect at the location of the transparent support structure 30 can be improved, so as to meet the light transmittance requirements of the light-transmitting area Q of the display module 100 for the image and improve the image quality.

[0128] Continue reading Figure 10 As shown, the microlens 91 is a convex lens. The plane 91A of the convex lens is located in the light-concentrating layer 90 near the transparent elastomer layer 80, and the convex surface 91B of the convex lens is located in the light-concentrating layer 90 near the second adhesive layer 72. By using the microlens convex lens 91 to converge light, the light transmittance of the light-transmitting area Q of the display module 100 is met, thereby improving the image quality.

[0129] For example, the light-concentrating layer 90 can be made of a high-refractive-index material, such as a material with a refractive index of around 1.7, to form a microlens 91, thereby achieving a better light-concentrating effect. The light-concentrating layer 90 can be formed on the side of the transparent elastomer layer 80 near the first adhesive layer 71 or near the second adhesive layer 72 using inkjet printing (IKP).

[0130] Figure 11 for Figure 10 A structural diagram of a microlens. See also: In some embodiments, see Figure 11 and combination Figure 10 As shown, a plurality of microlenses 91 are located between the transparent elastomer layer 80 and the second adhesive layer 72. At least one microlens 91 includes multiple layers of optical film layers 911 stacked together. Among two adjacent optical film layers 911, the refractive index of the optical film layer 911 closer to the support plate 20 is lower than the refractive index of the optical film layer 911 away from the support plate 20. Furthermore, among the multiple layers of optical film layers 911, the refractive index of the optical film layer 911 closest to the support plate 20 is greater than the refractive index of the transparent elastomer layer 80.

[0131] In some embodiments, a light-concentrating layer 90 is located on the side of the transparent elastomer layer 80 away from the support plate 20, and at least one microlens 91 includes multiple layers of optical film layers 911 stacked together. The optical film layers 911 closer to the support plate 20 have lower refractive indices, but the refractive index of the optical film layer 911 with the lowest refractive index is still greater than that of the transparent elastomer layer 80. That is, the refractive index of the optical film layers adjacent to the transparent elastomer layer 80 is greater than that of the transparent elastomer layer 80, so that along the direction from the light-concentrating layer 90 to the transparent elastomer 80, the refractive index of the film layers in the light-concentrating layer 90 to the transparent elastomer 80 decreases sequentially, thereby achieving the effect of converging light.

[0132] in, Figure 11 The microlens 91, comprising five optical film layers 91, is illustrated as an example. For instance, typically, the refractive index of the transparent elastomer layer 80 is approximately 1.5, while the refractive index of the optical film layer 911 is approximately 1.7. (Continue reading...) Figure 10 and Figure 11 As shown, among the multiple optical film layers 911 of the microlens 91, the optical film layer 911A is closest to the flexible display panel 10, and it has the highest refractive index. Among the multiple optical film layers 911 of the microlens 91, the optical film layer 911B is closest to the support plate 20, and it has the lowest refractive index. Furthermore, the refractive index of optical film layer 911B is greater than that of the transparent elastomer layer 80. Along the direction from optical film layer 911A to optical film layer 911B, the refractive index of optical film layer 911 gradually decreases from 1.7 to 1.5.

[0133] Figure 12A This is a structural diagram of a support plate provided in some embodiments of the present disclosure. Figure 12B This is a structural diagram of yet another support plate provided in some embodiments of this disclosure. Figure 12C This is a structural diagram of yet another support plate provided in some embodiments of this disclosure. Figure 12D This is a structural diagram of yet another support plate provided for some embodiments of this disclosure. In some embodiments, see [reference needed]. Figures 12A-12D As shown, the support plate 20 includes a first support portion 20A, a second support portion 20B, and a bendable portion 20C. The bendable portion 20C is located between the first support portion 20A and the second support portion 20B. The bendable portion 20C has a plurality of grooves W. Furthermore, a light-transmitting hole 21 is located in the first support portion 20A and / or the second support portion 20B.

[0134] The bendable portion 20C is used to realize the foldable display module. The bendable portion 20C has multiple slots W to facilitate bending of the support plate 20. The number of light-transmitting holes 21 on the support plate 20 can be one or more, depending on actual needs. When the support plate 20 includes only one light-transmitting hole 21, the light-transmitting hole 21 can be located on the first support portion 20A or the second support portion 20B. When the support plate 20 includes multiple light-transmitting holes 21, the light-transmitting holes 21 can be located on the first support portion 20A or the second support portion 20B. Alternatively, multiple light-transmitting holes 21 can be distributed on the first support portion 20A and the second support portion 20B. The shape of the orthographic projection of the light-transmitting hole 21 onto the plane of the support plate 20 can be circular, elliptical, square, star-shaped, or polygonal; the shape of the light-transmitting hole 21 is not limited.

[0135] in, Figure 12A An example is given by taking a support plate 20 that includes a light-transmitting hole 21, and the light-transmitting hole 21 is elliptical in shape. Figure 12B The following is an example of a support plate 20 including a light-transmitting hole 21, wherein the light-transmitting hole 21 is hexagonal in shape. Figure 12C The following is an example of a support plate 20 including a light-transmitting hole 21, wherein the light-transmitting hole 21 is hexagonal in shape. Figure 12D The following is an example of a support plate 20 that includes two light-transmitting holes 21, both of which are circular in shape, and the two light-transmitting holes 21 are located in the first support part 20A and the second support part 20B, respectively.

[0136] Furthermore, the aforementioned support plate 20 is only an example of a single-fold structure, meaning that the support plate 20 is folded only once, subsequently reducing the exposed area of ​​the corresponding display module 100 by half. However, it is not limited to this; the support plate 20 can also be configured as a multi-fold structure so that the display module 100 can be folded into a structure with a smaller exposed area. The multi-fold structure includes two or more folding sections, and there are no specific restrictions on the exact location of the folding sections.

[0137] Figure 13 for Figure 1 Another cross-sectional structural diagram at point A-A'. See also the following for some embodiments: Figure 13 ,as well as Figure 1 As shown, the display module 100 also includes: a cover plate 201, a polarizer 202, and a back film 203.

[0138] like Figure 13 As shown, the back film 203 is located between the flexible display panel 10 and the support plate 20, and the back film 203 can provide a certain degree of support for the flexible display panel 10. The back film 203 can be bonded to the flexible display panel 10 and the support plate 20 through an adhesive layer. For example, combined with... Figure 9As shown, the back film 203 can be fixedly bonded to the support plate 20 through the second adhesive layer 72.

[0139] The cover plate 201 is located on the side of the flexible display panel 10 opposite to the support plate 20. The cover plate 201 can be used to protect the flexible display panel 10 and prevent it from being scratched.

[0140] For example, cover plate 201 is a flexible cover plate. The material of cover plate 201 includes at least one of transparent polyimide and ultrathin glass.

[0141] A polarizer 202 is located between the cover plate 201 and the flexible display panel 10. The polarizer 202 can be a circular polarizer. Here, the polarizer 202 can reduce external light emission and prevent the display module 100 from producing a glare effect.

[0142] For example, the polarizer 202 includes an opening K extending through it. The orthographic projection of the opening K onto the plane of the support plate 20 at least partially overlaps with the light-transmitting hole 21, thus improving the effect of the polarizer 202 on the light transmittance at the location of the light-transmitting hole 21. When the orthographic projection of the opening K onto the plane of the support plate 20 completely covers the light-transmitting hole 21, the effect of the polarizer 202 on the light transmittance at the location of the light-transmitting hole 21 can be prevented. Compared to the case where the orthographic projection of the opening K onto the plane of the support plate 20 at least partially overlaps with the light-transmitting hole 21, the improvement effect at the location of the light-transmitting hole 21 is better.

[0143] For example, the boundary of the orthographic projection of the opening K onto the plane of the support plate 20 coincides with the boundary of the light-transmitting hole 21. In this case, the polarizer 202 is less likely to affect the light transmittance at the location of the light-transmitting hole 21, and the area of ​​the polarizer 202 other than the opening K is not too small, thus ensuring the anti-reflection effect of the polarizer 202 on the display surface excluding the light-transmitting hole 21. It should be noted that due to certain uncontrollable errors, the aforementioned "coincidence" includes absolute coincidence and approximate coincidence. That is, the fluctuation range of the error distance between the boundary of the orthographic projection of the opening K onto the plane of the support plate 20 and the boundary of the light-transmitting hole 21 does not exceed the error threshold, and the two surfaces can be considered relatively "coinciding". The error threshold range can be, for example, 0μm to 0.5μm. The two sides of the polarizer 202 can be bonded to the cover plate 201 and the flexible display panel 10 respectively through adhesive layers 204. The material of the adhesive layer includes thermosetting resin or photocurable resin. For example, the adhesive layer is made of OCA optical adhesive (Optical Clear Adhesive).

[0144] Figure 14 for Figure 1 Another cross-sectional structural diagram at point A-A'. See also the following for some embodiments: Figure 14 ,as well as Figure 1As shown, the display module 100 includes a cover plate 201 and a back film 203. The display module 100 is based on a COE structure (Color Film On Encapsulation, i.e., the color filter is directly fabricated on the encapsulation layer). The color filter layer 205 is located between the flexible display panel 10 and the cover plate 201. The color filter layer 205 includes a separating pattern 2051 and a plurality of color filter portions 2052. The separating pattern 2051 is used to separate the plurality of color filter portions 2052. The plurality of color filter portions 2052 include a red color filter portion, a green color filter portion, and a blue color filter portion.

[0145] For example, the partition pattern 2051 located in the area within the display surface other than the light-transmitting area Q is made of black light-absorbing material.

[0146] For example, the dividing pattern 2051 located in the light-transmitting area Q is made of transparent material, which can facilitate the improvement of light transmittance in the light-transmitting area Q in order to meet the requirements of under-display camera.

[0147] For example, the display module 100 may also include an overcoating (OC) layer 206 disposed between the color filter layer 205 and the cover plate 201, covering the color filter layer 205.

[0148] Figure 14 The display module 100 shown is relative to Figure 13 The display module 100 shown does not require a polarizer, which helps reduce the cost of the display module 100. At the same time, the polarizer-free technology allows for lower screen power consumption at the same display brightness. Furthermore, compared to a polarizer, the screen thickness can be significantly reduced, which helps extend the lifespan of the flexible display panel 10.

[0149] It should be noted that, Figure 14 The illustration uses an example where all color filter elements 2052 are of equal size. In other embodiments, the sizes of color filter elements 2052 of different colors can be set differently. For example, the size of the blue color filter element corresponds to the size of the blue light-emitting device, the size of the green color filter element corresponds to the size of the green light-emitting device, and the size of the red color filter element corresponds to the size of the red light-emitting device. Furthermore, the size of the color filter element 2052 within the light-transmitting region Q can be smaller than the size of the color filter elements 2052 in the area outside the light-transmitting region Q of the display surface; and the density of multiple color filter elements 2052 within the light-transmitting region Q can be smaller than the density of multiple color filter elements 2052 in the area outside the light-transmitting region Q of the display surface.

[0150] Figure 15 This is a flowchart illustrating the structure of a display module provided in some embodiments of this disclosure. Alternatively, see [link to relevant documentation]. Figure 15 and combination Figure 1 and Figure 2 As shown, some embodiments of this disclosure provide a method for manufacturing a display module, including: S1 to S5.

[0151] S1: A support plate 20 is provided, with an opening design on the support plate 20 to form a light-transmitting hole 21 that penetrates through the support plate 20. The light-transmitting hole 21 can be made on the support plate using methods such as laser cutting or etching.

[0152] S2: Fill the light-transmitting hole 21 with a transparent support structure 30.

[0153] S3: Fill the space between the sidewall 211 of the light-transmitting hole 21 and the transparent support structure 30 with a light-blocking part 40.

[0154] S4: Provide a flexible display panel 10, the flexible display panel 10 includes a display surface 11, the display surface 11 includes a light-transmitting area Q.

[0155] S5: The flexible display panel 10 and the support plate 20 are attached together, so that the orthographic projection of the transparent support structure 30 on the display surface 11 at least partially overlaps with the light-transmitting area Q, forming a display module 100.

[0156] In some embodiments, a transparent support structure 30 is filled within the light-transmitting hole 21. This transparent support structure 30 can be combined with the support plate 20 to support the flexible display panel 10, thereby reducing or eliminating molding problems caused by the lack of force at the light-transmitting hole 21. Furthermore, selecting a transparent material to form the transparent support structure 30 can also meet the light transmittance requirements of the light-transmitting area Q, improving the imaging effect. In addition, at least a portion of the sidewall 211 is provided with a light-shielding part 40. This light-shielding part 40 can block the light emitted by the light-emitting device O inside the flexible display panel 10, preventing the light emitted by the light-emitting device O from entering the optical device G, thereby avoiding light leakage problems at the light-transmitting hole 21 and improving the imaging quality of the optical device G.

[0157] In some embodiments, continue reading Figure 15 and combination Figure 7 As shown, after step S3 is completed, a transparent protective layer 60 can be spin-coated on the side of the support plate 20 away from the flexible display panel 10 to facilitate the formation of a smooth transparent protective layer 60, which can reduce or eliminate the molding problem of the backlight module 100.

[0158] In some embodiments, continue reading Figure 15 and combination Figure 9As shown, after step S1 and before step S2, a transparent elastomer layer 80 is provided, and a first adhesive layer 71 and a second adhesive layer 72 are formed on the upper and lower sides of the transparent elastomer layer 80, respectively. The transparent elastomer layer 80 is bonded to the first side of the support plate 20 using the first adhesive layer 71. The first side is the side of the support plate 20 in the display module 100 that is close to the flexible display panel 10. Since the transparent elastomer layer 80 has a certain elasticity and a certain recovery performance, it can buffer the pressure during bonding and play a role in recovery after bonding, reducing the molding problem of the display module 100. In addition, since the light transmittance of the transparent elastomer layer 80 is greater than or equal to 95%, it is a high-transmittance material, which can help improve the light transmittance and greatly increase the amount of external light entering the light-transmitting area Q, thereby achieving the purpose of improving the front-facing camera effect and the accuracy of face recognition.

[0159] Figure 16 This is a cross-sectional structural diagram of a display device provided in some embodiments of the present disclosure. On the other hand, some embodiments of the present disclosure provide a display device 200. See also... Figure 16 As shown. The display device 200 includes a display module 100 as described in any of the above embodiments and an optical element G. The optical element G is located on the side of the support plate 20 opposite to the flexible display panel 10, and the orthographic projection of the optical element G on the support plate 20 at least partially overlaps with the light-transmitting hole 21.

[0160] Since the support plate 20 includes a light-transmitting hole 21, and the orthographic projection of the optical device G on the support plate 20 at least partially overlaps with the light-transmitting hole 21, the light-transmitting hole 21 can meet the light transmittance requirements of the optical device G to achieve a full-screen design. A transparent support structure 30 is filled within the light-transmitting hole 21, and the orthographic projection of the transparent support structure 30 on the display surface 11 at least partially overlaps with the light-transmitting area Q. The transparent support structure 30 is made of a transparent material, which can mitigate the significant impact of the transparent support structure 30 on the light transmittance at the light-transmitting hole 21, meet the light transmittance requirements of the optical device G, and improve the imaging effect. Simultaneously, the transparent support structure 30 can also be combined with the support plate 20 to support the flexible display panel 10, thereby reducing or eliminating molding problems caused by the lack of force at the light-transmitting hole 21. Additionally, a light-shielding portion 40 is provided on at least a portion of the sidewall 211 of the light-transmitting hole 21. The light-shielding portion 40 can block the light emitted by the light-emitting device O inside the flexible display panel 10, preventing the light emitted by the light-emitting device O from entering the optical device G, thereby avoiding the light leakage problem at the location of the light-transmitting hole 21 and improving the imaging quality of the optical device G.

[0161] For example, the optical device G may include a camera module, a fingerprint module, a facial recognition sensor, etc. For instance, the optical device G may be a camera module, which includes a camera. Setting the orthographic projection of the optical device G on the support plate 20 to at least partially overlap with the light-transmitting hole 21 can improve the camera's imaging effect and facial recognition accuracy. The camera can be fixedly connected to the support plate 20 using a third adhesive layer M. This disclosure does not limit the material of the third adhesive layer M; any material that serves to fix the camera without affecting its imaging function is acceptable.

[0162] For example, the display device 200 provided in some embodiments of this disclosure can be used as any product or component with display function, such as a television, mobile phone, tablet computer, laptop computer, digital photo frame or navigator. The embodiments of this disclosure do not limit the use of the display device 200.

[0163] Furthermore, the aforementioned display device 200 can be any device that displays images, whether moving (e.g., video) or fixed (e.g., still images), and whether it contains text or images. More specifically, the embodiments described are contemplated to be implemented in or associated with a variety of electronic devices, such as (but not limited to) mobile phones, wireless devices, personal data assistants (PDAs), handheld or portable computers, GPS receivers / navigators, cameras, MP4 video players, camcorders, game consoles, watches, clocks, calculators, television monitors, flat panel displays, computer monitors, automotive displays (e.g., odometer displays, etc.), navigators, cockpit controllers and / or displays, displays of camera views (e.g., displays of rearview cameras in vehicles), electronic photographs, electronic billboards or signs, projectors, architectural structures, packaging and aesthetic structures (e.g., displays of images of a piece of jewelry), etc.

[0164] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A display module, characterized in that, include: A flexible display panel includes a display surface, the display surface comprising a light-transmitting area; A support plate is located on the side of the flexible display panel that faces away from the display surface; The support plate has light-transmitting holes; A transparent support structure is filled within the light-transmitting hole; the orthographic projection of the transparent support structure on the display surface at least partially overlaps with the light-transmitting area. as well as, A light-shielding portion is located on at least a portion of the sidewall of the light-transmitting hole; A transparent protective layer is located on the side of the support plate opposite to the flexible display panel; the orthographic projection of the transparent protective layer on the support plate covers the light-transmitting hole; the thickness of the transparent protective layer gradually decreases from the center to the edge; the orthographic projection of the transparent protective layer on the support plate covers a portion of the support plate, and at least a portion of the uncovered area of ​​the support plate is grounded.

2. The display module according to claim 1, characterized in that, Also includes: An anti-reflective and anti-reflective layer is located inside the light-transmitting hole; the anti-reflective and anti-reflective layer is stacked with the transparent support structure.

3. The display module according to claim 2, characterized in that, The anti-reflective and anti-reflective layer is located on the side of the transparent support structure closest to the flexible display panel.

4. The display module according to claim 2, characterized in that, The anti-reflection and anti-reflection layer includes: At least two first refractive layers; and, The second refractive layer is located between two adjacent first refractive layers; The refractive index of the first refractive layer is less than that of the second refractive layer.

5. The display module according to claim 1, characterized in that, The minimum distance between the boundary of the orthographic projection of the transparent protective layer on the support plate and the light-transmitting hole is greater than or equal to 0.5 mm.

6. The display module according to claim 1, characterized in that, The modulus of the transparent protective layer ranges from 8 MPa to 100 MPa.

7. The display module according to claim 1, characterized in that, The maximum thickness of the transparent protective layer is d0, where 20μm≤d0≤50μm.

8. The display module according to any one of claims 1 to 7, characterized in that, The support plate includes a first metal layer; The thickness of the first metal layer is d1, where 80μm≤d1≤300μm.

9. The display module according to claim 1, characterized in that, The support plate includes: Second metal layer; and, An auxiliary support layer is located on the side of the second metal layer closest to the flexible display panel; the unit weight of the auxiliary support layer is less than the unit weight of the second metal layer; the sum of the thickness of the second metal layer and the thickness of the auxiliary support layer is d2, where 80μm≤d2≤300μm.

10. The display module according to claim 9, characterized in that, The auxiliary support layer is made of carbon fiber.

11. The display module according to claim 1, characterized in that, Also includes: A first adhesive layer, a second adhesive layer, and a transparent elastomer layer are stacked together; the transparent elastomer layer is located between the first adhesive layer and the second adhesive layer, and the first adhesive layer is located on the side of the transparent elastomer layer closer to the support plate; The light transmittance of the transparent elastomer layer is greater than or equal to 95%.

12. The display module according to claim 11, characterized in that, The elastic modulus of the transparent elastomer layer ranges from 40 MPa to 500 MPa.

13. The display module according to claim 11, characterized in that, The material of the transparent elastomer layer includes at least one of thermoplastic polyurethane elastomer, thermoplastic elastomer, or thermoplastic polyester elastomer.

14. The display module according to claim 11, characterized in that, Also includes: The light-concentrating layer includes a plurality of spaced-apart microlenses; wherein the plurality of microlenses are located between the transparent elastomer layer and the first adhesive layer or the second adhesive layer; The orthographic projections of the plurality of microlenses on the display surface and the orthographic projections of the transparent support structure on the display surface at least partially overlap.

15. The display module according to claim 14, characterized in that, The plurality of microlenses are located between the transparent elastomer layer and the second adhesive layer; At least one of the microlenses comprises multiple layers of optical films stacked together; In two adjacent optical film layers, the refractive index of the optical film layer closer to the support plate is lower than the refractive index of the optical film layer away from the support plate; and, In the multiple optical film layers, the refractive index of the optical film layer closest to the support plate is greater than the refractive index of the transparent elastomer layer.

16. The display module according to claim 1, characterized in that, The material of the transparent support structure includes at least one of ultrathin glass, polyethylene terephthalate, polymethyl methacrylate, or polycarbonate.

17. The display module according to claim 1, characterized in that, In the direction from the transparent support structure to the support plate, the dimension of the light-shielding part is d3, 0.1mm≤d3≤1mm.

18. The display module according to claim 1, characterized in that, The support plate includes a first support portion, a second support portion, and a bendable portion located between the first support portion and the second support portion; the bendable portion has a plurality of grooves; and... The light-transmitting hole is located in the first support portion and / or the second support portion.

19. A display device, characterized in that, include: The display module as described in any one of claims 1 to 18; and, An optical device is located on the side of the support plate opposite to the flexible display panel, and the orthographic projection of the optical device on the support plate at least partially overlaps with the light-transmitting hole.

Images