Display module and display device

Abstract

The invention discloses a display module and a display device. The display module comprises a display panel; the backlight assembly is arranged on one side of the display panel in the first direction and comprises optical devices, a light source substrate and a light source, the light source substrate is located on at least one side of at least part of the optical devices in the second direction, the light source is arranged on the side, away from the display panel, of the light source substrate, the first direction is perpendicular to the plane where the display panel is located, and the second direction is perpendicular to the plane where the display panel is located. The second direction is parallel to the plane where the light source substrate is located.

Description

Technical Field

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

[0002] With the continuous development of technology, the application scenarios of display modules are becoming increasingly widespread. Display modules are commonly used in devices such as mobile phones, computers, televisions, and wearable devices. In related technologies, the structural design of display modules still needs further improvement in order to reduce their thickness. Summary of the Invention

[0003] This application provides a display module and a display device.

[0004] In a first aspect, embodiments of this application provide a display module, including: a display panel; a backlight assembly disposed on one side of the display panel in a first direction, the backlight assembly including optical devices, a light source substrate and a light source, the light source substrate being located on at least one side of at least some of the optical devices in a second direction, and the light source being disposed on the side of the light source substrate away from the display panel, wherein the first direction is perpendicular to the plane where the display panel is located, and the second direction is parallel to the plane where the light source substrate is located.

[0005] Secondly, embodiments of this application provide a display device, which includes the display module as described in the first aspect embodiment above.

[0006] This application provides a display module including a display panel and a backlight assembly, with the backlight assembly disposed on one side of the display panel in a first direction. The backlight assembly includes optical components, a light source substrate, and a light source. The light source substrate can be used to drive the light source to emit light, and the optical components can be used to adjust the light emitted by the light source. By positioning the light source substrate on at least one side of at least some of the optical components in a second direction, the light source substrate and at least some of the optical components can be better arranged along the second direction, making it less likely that the arrangement between the light source substrate and the optical components will increase the size of the backlight assembly in the first direction, thereby helping to reduce the overall thickness of the display module in the first direction. By placing the light source on the side of the light source substrate away from the display panel, it is beneficial to reduce the distance between the light source substrate and the display panel in the first direction, which can further help reduce the overall thickness of the display module in the first direction, and also helps to reduce the distance between the light source substrate and the optical components in the second direction, thereby helping to reduce the bezel size of the display module. Attached Figure Description

[0007] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0008] Figure 1 This is a schematic diagram of the structure of a display module provided in an embodiment of this application; Figure 2 This is a schematic diagram of the structure of a display module provided in another embodiment of this application; Figure 3 This is a schematic diagram of the structure of a display module provided in another embodiment of this application; Figure 4 This is a schematic diagram of the structure of a display module provided in another embodiment of this application; Figure 5 This is a schematic diagram of the structure of a display module provided in another embodiment of this application; Figure 6 This is a schematic diagram of the structure of a display module provided in another embodiment of this application; Figure 7 This is a schematic diagram of the structure of a display module provided in another embodiment of this application; Figure 8 This is a schematic diagram of the structure of a display module provided in another embodiment of this application; Figure 9 This is a schematic diagram of the structure of a display module provided in another embodiment of this application; Figure 10 This is a schematic diagram of the structure of a display module provided in another embodiment of this application; Figure 11 This is a schematic diagram of the structure of a display module provided in another embodiment of this application; Figure 12 This is a schematic diagram of the structure of a display module provided in another embodiment of this application; Figure 13 This is a schematic diagram of the structure of a display module provided in another embodiment of this application; Figure 14 This is a schematic diagram of the structure of a display module provided in another embodiment of this application; Figure 15 This is a schematic diagram of the structure of a display module provided in another embodiment of this application; Figure 16 This is a schematic diagram of the arrangement of a light source and a light guide provided in an embodiment of this application; Figure 17 This is a schematic diagram of the arrangement of a light source and a light guide provided in another embodiment of this application; Figure 18 This is a schematic diagram of the arrangement of a light source and a light guide element according to another embodiment of this application. Figure 19 This is a schematic diagram of the structure of a display module provided in another embodiment of this application; Figure 20 This is a schematic diagram of the structure of a display module provided in another embodiment of this application; Figure 21 This is a schematic diagram of the structure of a display module provided in another embodiment of this application; Figure 22 This is a schematic diagram of the structure of a display module provided in another embodiment of this application; Figure 23 This is a schematic diagram of the structure of a display module provided in another embodiment of this application; Figure 24 This is a schematic diagram of the structure of a display module provided in another embodiment of this application; Figure 25 This is a schematic diagram of the structure of a display module provided in another embodiment of this application; Figure 26 This is a schematic diagram of the structure of a display module provided in another embodiment of this application; Figure 27 This is a schematic diagram of the structure of a display module provided in another embodiment of this application; Figure 28 This is a schematic diagram of the structure of a display module provided in another embodiment of this application; Figure 29 This is a schematic diagram of the structure of a display module provided in another embodiment of this application; Figure 30 This is a schematic diagram of the structure of a light source substrate and a light source provided in an embodiment of this application; Figure 31 This is a schematic diagram of the structure of a light source substrate and a light source provided in another embodiment of this application; Figure 32 This is a schematic diagram of the structure of a display module provided in another embodiment of this application; Figure 33 This is a schematic diagram of the structure of a display module provided in another embodiment of this application; Figure 34 This is a schematic diagram of the structure of a display module provided in another embodiment of this application; Figure 35 This is a schematic diagram of the structure of a driving substrate, a light source substrate, a first circuit board, and a second circuit board provided in an embodiment of this application; Figure 36This is a schematic diagram of the structure of a driving substrate, a light source substrate, a first circuit board and a second circuit board provided in another embodiment of this application.

[0009] Explanation of reference numerals in the attached figures: 10 - Display module; 100 - Display panel; 110 - Driving substrate; 120 - Color filter substrate; 130 - First polarizer; 140 - Second polarizer; 200 - Backlight assembly; 201 - Light source array; 210 - Optical components; 211 - Light guide; 211a - First light guide portion; 211b - Second light guide portion; 2111 - First surface; 2112 - Second surface; 2113 - First side surface; 212 - First auxiliary optical component; 213 - Second reflector; 220 - Light source substrate; 220a - First substrate portion; 220b - Second substrate portion; 221 - Main body portion; 221a - Light source circuit; 221b - Insulating layer; 221ba - Passivation layer; 221bb - Connecting opening; 222 - Reflection Structure; 222a - clearance opening; 222b - first part; 222c - second part; 230 - light source; 231 - third surface; 232 - second side surface; 240 - second auxiliary optical component; 250 - first reflector; 250a - reflective layer; 250b - functional layer; 250c - heat dissipation groove; 251 - first reflective part; 252 - second reflective part; 252a - first reflective section; 252b - second reflective section; 252ba - first sub-part; 252bb - second sub-part; 253 - third reflective part; 254 - fourth reflective part; 300 - First adhesive layer; 400 - Second adhesive layer; 500 - Adhesive Material; 600 - First circuit board; 610 - First board body; 620 - Third board body; 630 - Fifth board body; 700 - Second circuit board; 710 - Second board body; 720 - Fourth board body; 730 - Sixth board body; D1 - First direction; D2 - Second direction; D3 - Third direction. Detailed Implementation

[0010] The features and exemplary embodiments of various aspects of this application will be described in detail below. To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are intended only to explain this application and not to limit it. For those skilled in the art, this application can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of this application by illustrating examples. In the drawings and the following description, at least some well-known structures and technologies are not shown in order to avoid causing unnecessary ambiguity to this application; and, for clarity, the dimensions of some structures may be exaggerated. Furthermore, the features, structures, or characteristics described below can be combined in any suitable manner in one or more embodiments.

[0011] It should be noted that, unless otherwise stated, "a plurality of" in this document means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationships, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0012] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of the embodiments of this application. It should also be noted in the description of this application that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0013] With the continuous development of technology, the application scenarios of display modules are becoming increasingly widespread. Display modules are commonly used in devices such as mobile phones, computers, televisions, and wearable devices. In related technologies, the structural design of display modules still needs further improvement in order to reduce their thickness.

[0014] For example, a display module includes a stacked display panel and a backlight assembly. The backlight assembly typically includes a light source, a light source substrate, and optical components. The light source substrate can be connected to the light source and is used to drive the light source to emit light. The optical components can be used to adjust the light emitted by the light source so that the light emitted by the light source can better illuminate the display panel. However, in related technologies, the light source substrate and optical components are often stacked (for example, in related technologies, the light source substrate is often stacked on the side of the optical components away from the display panel). The stacked light source substrate and optical components tend to make the backlight assembly have a large thickness, which in turn tends to result in a large overall thickness of the display module.

[0015] To address the aforementioned technical problems, this application is provided. To better understand this application, the display module and display device according to embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the structure of a display module 10 provided in an embodiment of this application. In the figure, direction D1 can represent a first direction D1, and direction D2 can represent a second direction D2. The first direction D1 may intersect with the second direction D2; for example, the first direction D1 may be perpendicular to the second direction D2.

[0017] like Figure 1 As shown, this application embodiment provides a display module 10, including: a display panel 100; a backlight assembly 200 disposed on one side of the display panel 100 in a first direction D1, the backlight assembly 200 including optical devices 210, a light source substrate 220 and a light source 230, the light source substrate 220 being located on at least one side of at least a portion of the optical devices 210 in a second direction D2, and the light source 230 being disposed on the side of the light source substrate 220 away from the display panel 100, wherein the first direction D1 is perpendicular to the plane where the display panel 100 is located, and the second direction D2 is parallel to the plane where the light source substrate 220 is located.

[0018] An embodiment of this application provides a display module 10 including a display panel 100 and a backlight assembly 200, wherein the backlight assembly 200 is disposed on one side of the display panel 100 in a first direction D1.

[0019] Optionally, the display panel 100 may have a light-incident side and a light-emitting side facing away from each other in the first direction D1, and the backlight assembly 200 may be disposed on the light-incident side of the display panel 100. The backlight assembly 200 can be used to provide backlight from the light-incident side of the display panel 100.

[0020] Optionally, the display panel 100 can be used to adjust its own transmittance to adjust the amount of light transmitted through the display panel 100, thereby achieving image display. As an example, the display panel 100 can be a liquid crystal display panel 100 (e.g., the display panel 100 can be a projective liquid crystal display panel or a reflective liquid crystal display panel). The display panel 100 may include a liquid crystal layer (not shown in the figure). The liquid crystal molecules in the liquid crystal layer can be deflected under the action of an electric field. Under the action of different magnitudes of electric fields, the liquid crystal molecules can have different degrees of deflection, so that the display panel 100 can have different transmittances, and thus the amount of light emitted by the backlight assembly 200 transmitted through the display panel 100 can be different, thereby achieving image display.

[0021] Optionally, the display panel 100 may include a driving substrate 110, which can be used to adjust the magnitude of the electric field acting on the liquid crystal molecules. For example, the display panel 100 may have multiple sub-pixel regions, and the driving substrate 110 may include driving circuits configured for different sub-pixel regions. Each driving circuit can be used to adjust the magnitude of the electric field of the liquid crystal molecules in each sub-pixel region, thereby enabling relatively independent adjustment of the light transmittance of each sub-pixel region. This allows the amount of light transmitted through each sub-pixel region by the backlight assembly 200 to be different, thereby achieving image display.

[0022] Optionally, the driving substrate 110 may be stacked with the liquid crystal layer in the first direction D1. For example, the driving substrate 110 may be disposed on the side of the liquid crystal layer near the light incident side in the first direction D1, and the backlight assembly 200 may be disposed on the side of the driving substrate 110 away from the liquid crystal layer.

[0023] Optionally, the display panel 100 may further include a color filter substrate 120, which can be used to adjust the color of light transmitted through the display panel 100. For example, the color filter substrate 120 may include a color resist layer, which may include multiple color resists (for example, the color resist layer may include red color resist, green color resist and blue color resist), each color resist may be set for different sub-pixel areas, and the color resist can play a filtering role, so that the light transmitted through each sub-pixel area can be a specific color.

[0024] Optionally, the color filter substrate 120 may be stacked with the driving substrate 110 and the liquid crystal layer in the first direction D1. For example, the color filter substrate 120 may be disposed on the side of the liquid crystal layer near the light-emitting side in the first direction D1, and the backlight assembly 200 may be disposed on the side of the driving substrate 110 away from the liquid crystal layer and the color filter substrate 120.

[0025] Optionally, the projected area of ​​the driving substrate 110 in the first direction D1 can be larger than the projected area of ​​the liquid crystal layer in the first direction D1, and the projected area of ​​the driving substrate 110 in the first direction D1 can be larger than the projected area of ​​the color filter substrate 120 in the first direction D1. This allows the driving substrate 110 to have a larger size, which is beneficial for the arrangement of the circuit structure within the driving substrate 110, and also for the bonding or connection of the driving substrate 110 with other device structures. For example, the projection of the liquid crystal layer in the first direction D1 can be located within the projection of the driving substrate 110 in the first direction D1, and the driving substrate 110 can protrude along the second direction D2 relative to at least one side of the liquid crystal layer; the projection of the color filter substrate 120 in the first direction D1 can be located within the projection of the driving substrate 110 in the first direction D1, and the driving substrate 110 can protrude along the second direction D2 relative to at least one side of the color filter substrate 120.

[0026] The backlight assembly 200 includes an optical device 210, a light source substrate 220, and a light source 230. The light source substrate 220 can be used to drive the light source 230 to emit light, and the optical device 210 can be used to adjust the light emitted by the light source 230.

[0027] Optionally, the optical device 210 can be used to adjust the propagation angle of the light emitted by the light source 230, so that the light emitted by the light source 230 can propagate better toward the display panel 100. For example, the light emitted by the light source 230 can be emitted outward from the side of the optical device 210 closest to the display panel 100 through the interior of the optical device 210.

[0028] By setting the light source substrate 220 to at least one side of at least some optical devices 210 in the second direction D2, the light source substrate 220 and at least some optical devices 210 can be better arranged along the second direction D2, so that the arrangement between the light source substrate 220 and the optical devices 210 does not easily increase the size of the backlight assembly 200 in the first direction D1, thereby helping to reduce the overall thickness of the display module 10 in the first direction D1.

[0029] For example, in the first direction D1, the light source substrate 220 does not overlap with at least some of the optical devices 210, so that the light source substrate 220 and at least some of the optical devices 210 can be better arranged along the second direction D2.

[0030] Optionally, the projection of the light source substrate 220 on the first direction D1 may at least partially overlap with the projection of the driving substrate 110 on the first direction D1, so that the light source substrate 220 can support the driving substrate 110. For example, the projection of the light source substrate 220 on the first direction D1 may be located within the projection of the driving substrate 110 on the first direction D1, so that the light source substrate 220 is less likely to protrude relative to the driving substrate 110 along the second direction D2, and the light source substrate 220 arranged with the optical device 210 along the second direction D2 is less likely to have an excessively large size, which helps to reduce the impact of the light source substrate 220 on the bezel size of the display module 10.

[0031] Optionally, the driving substrate 110 may protrude along the second direction D2 relative to at least one side of the light source substrate 220, so that the driving substrate 110 can have a larger size, which is beneficial to the arrangement of the circuit structure within the driving substrate 110, and also beneficial to the bonding or connection of the driving substrate 110 with other device structures.

[0032] Optionally, the projection of the light source substrate 220 on the first direction D1 may at least partially overlap with the projection of the color filter substrate 120 on the first direction D1, so that the light source substrate 220 can also provide a certain support for the color filter substrate 120; the projection of the light source substrate 220 on the first direction D1 may also at least partially overlap with the projection of the liquid crystal layer on the first direction D1, so that the light source substrate 220 can also provide a certain support for the liquid crystal layer.

[0033] Optionally, the projection of the optical device 210 in the first direction D1 may at least partially overlap with the projection of the liquid crystal layer in the first direction D1, and the projection of the optical device 210 in the first direction D1 may at least partially overlap with the projection of the color filter substrate 120 in the first direction D1, such that the light emitted from the optical device 210 can be emitted outward only after passing through the liquid crystal layer and the color filter substrate 120. For example, the projection of the optical device 210 in the first direction D1 may be located within the projection of the liquid crystal layer in the first direction D1; the projection of the optical device 210 in the first direction D1 may be located within the projection of the color filter substrate 120 in the first direction D1.

[0034] By placing the light source 230 on the side of the light source substrate 220 away from the display panel 100, it is beneficial to reduce the distance between the light source substrate 220 and the display panel 100 in the first direction D1, which can further reduce the overall thickness of the display module 10 in the first direction D1, and can also reduce the distance between the light source substrate 220 and the optical device 210 in the second direction D2, thereby reducing the bezel size of the display module 10.

[0035] Optionally, the light source 230 may be located on at least one side of at least a portion of the optical device 210 in the second direction D2, such that light emitted by the light source 230 can propagate from the side of the optical device 210 on at least one side in the second direction D2 into the interior of the optical device 210. The optical device 210 can be used to adjust the propagation angle of the light emitted by the light source 230, so that light entering the interior of the optical device 210 can exit along the first direction D1 from the side of the optical device 210 closest to the display panel 100.

[0036] For example, in the first direction D1, the light source 230 may not overlap with at least some of the optical devices 210, so that the light source 230 and at least some of the optical devices 210 can be better arranged along the second direction D2.

[0037] In some embodiments of this application, the optical device 210 has various structural configurations.

[0038] As an example, such as Figure 1 As shown, the optical device 210 can be a single-layer structure. The single optical device 210 can have a large thickness in the first direction D1. The optical device 210 with a large thickness can play a strong role in adjusting the propagation angle of the light emitted by the light source 230. The light source 230 and the light source substrate 220 can be located on the same side of the single optical device 210 in the second direction D2.

[0039] Figure 2 This is a schematic diagram of the structure of a display module 10 provided in another embodiment of this application.

[0040] As another example, such as Figure 2 As shown, the optical device 210 can be a multi-layered structure. Different layers in the optical device 210 can play different roles in adjusting the light, which is beneficial for the optical device 210 to better conduct the light emitted by the light source 230 to the display panel 100. The light source 230 and the light source substrate 220 can be simultaneously located on the same side of a single layer structure in the optical device 210 in the second direction D2; or, the light source 230 can be located on at least one side of a portion of the layer structure in the optical device 210 in the second direction D2, and the light source substrate 220 can be located on at least one side of another portion of the layer structure in the optical device 210 in the second direction D2 (e.g., ...). Figure 2 (As shown).

[0041] like Figure 2 As shown, in some examples, the optical device 210 includes a light guide 211 and a first auxiliary optical element 212 disposed between the light guide 211 and the display panel 100, the light source 230 is at least partially located on at least one side of the light guide 211 in the second direction D2, and the light source substrate 220 is located on at least one side of the first auxiliary optical element 212 in the second direction D2.

[0042] In this example, both the light guide 211 and the first auxiliary optical component 212 can be used to adjust the light path of the light emitted by the light source 230. The light source 230 and the light guide 211 can be arranged well along the second direction D2. The light source substrate 220 and the first auxiliary optical component 212 can be arranged along the second direction D2, so that the light source 230 is less likely to overlap with the light guide 211 in the first direction D1, and the light source substrate 220 is less likely to overlap with the first auxiliary optical component 212 in the first direction D1. This allows the optical device 210 to have a better optical adjustment function, while also helping to reduce the thickness of the backlight assembly 200 in the first direction D1.

[0043] Optionally, the light guide 211 and the first auxiliary optical component 212 can play different roles in adjusting the light emitted by the light source 230.

[0044] As an example, the light guide 211 can be used to receive light emitted from the light source 230 transmitted in the second direction D2, and guide the light to a first auxiliary optical element 212 located on the side of the light guide 211 near the display panel 100 in the first direction D1 (for example, the light guide 211 may have a first surface 2111, a second surface 2112 and a first side surface 2113, the first surface 2111 and the second surface 2112 may be opposite to each other in the first direction D1, the first surface 2111 may be located on the side of the second surface 2112 near the display panel 100, and the first side surface...). 2113 can be connected between the first surface 2111 and the second surface 2112, and at least part of the first side surface 2113 is located on the side of the first surface 2111 and the second surface 2112 closer to the light source 230 in the second direction D2. The first side surface 2113 of the light guide 211 can be the light incident surface, and the first surface 2111 of the light guide 211 can be the light emitting surface. The light emitted by the light source 230 can enter the interior of the light guide 211 from the first side surface 2113 and be conducted inside the light guide 211 to exit from the first surface 2111 to the first auxiliary optical element 212.

[0045] As an example, the first auxiliary optical element 212 can be used to change the light path of the light rays that are directed from the light guide element 211 to the display panel 100, so that the light rays can be emitted to the display panel 100 more uniformly and with a more suitable propagation angle (for example, the first auxiliary optical element 212 may include a collimating film, so that more light rays passing through the first auxiliary optical element 212 can be directed to the display panel 100 along the first direction D1, and it is beneficial to make the light rays be directed to the display panel 100 more uniformly after passing through the first auxiliary optical element 212).

[0046] Optionally, in the first direction D1, the light source 230 may not overlap with the light guide 211, allowing the light source 230 and the light guide 211 to be better arranged along the second direction D2. In the first direction D1, the light source substrate 220 may not overlap with the first auxiliary optical component 212, allowing the light source substrate 220 and the first auxiliary optical component 212 to be better arranged along the second direction D2.

[0047] Optionally, the light guide 211 and the light source substrate 220 may not be arranged along the second direction D2, that is, the light source substrate 220 may not be located on both sides of the light guide 211 in the second direction D2, so that the first side surface 2113 of the light guide film is not easily blocked by the light source substrate 220, which is conducive to the light guide 211 receiving the light emitted by the light source 230 more fully.

[0048] Optionally, there are various ways to set the size and position of the first auxiliary optical element 212.

[0049] As an example, such as Figure 2 As shown, the first auxiliary optical element 212 may not be located on one side of the light source 230 in the second direction D2, which is beneficial to reduce the thickness of the first auxiliary optical element 212. This allows the thickness of the light guide 211 to be increased without increasing the overall thickness of the optical device 210, which is beneficial for the light guide 211 to receive the light emitted by the light source 230 more fully.

[0050] Figure 3 This is a schematic diagram of the structure of a display module 10 provided in another embodiment of this application.

[0051] As another example, such as Figure 3 As shown, a portion of the first auxiliary optical element 212 may be located on one side of the light source 230 in the second direction D2. That is, the surface of the first auxiliary optical element 212 facing away from the display panel 100 may not be flush with the surface of the light source substrate 220 facing away from the display panel 100. This is beneficial to increasing the thickness of the first auxiliary optical element 212, thereby improving the light adjustment effect of the first auxiliary optical element 212.

[0052] Figure 4 This is a schematic diagram of the structure of a display module 10 provided in another embodiment of this application.

[0053] like Figure 4As shown, optionally, the light source substrate 220 may include a first substrate portion 220a and a second substrate portion 220b. In the first direction D1, the first substrate portion 220a may overlap with the light source 230, and the second substrate portion 220b may not overlap with the light source 230. The arrangement of the second substrate portion 220b is beneficial to the arrangement of the internal circuit structure of the light source substrate 220. The second substrate portion 220b may be located on both sides of the first substrate portion 220a in the second direction D2. The second substrate portion 220b located on the side of the first substrate portion 220a away from the optical device 210 in the second direction D2 can be used for bonding or connecting with other device structures. The second substrate portion 220b located on the side of the first substrate portion 220a close to the optical device 210 in the second direction D2 may include a circuit structure for driving the light source 230 to emit light.

[0054] like Figure 4 As shown, in some examples, the light guide 211 may be partially located on the side of the light source substrate 220 away from the display panel 100. The light guide 211 may have a large size, so that the light guide 211 can be closer to the light source 230. That is, the light guide 211 and the light source 230 are not easily affected by the second substrate portion 220b and have a large distance, which is beneficial for the light guide 211 to receive the light emitted by the light source 230.

[0055] For example, the light guide 211 includes a first light guide portion 211a and a second light guide portion 211b. In the first direction D1, the first light guide portion 211a overlaps with the light source substrate 220, while the second light guide portion 211b does not overlap with the light source substrate 220. Further, in the first direction D1, the first light guide portion 211a may overlap with the second substrate portion 220b, and the second light guide portion 211b may overlap with the first auxiliary optical component 212.

[0056] Optionally, the projected area of ​​the light guide 211 in the first direction D1 can be larger than the projected area of ​​the first auxiliary optical component 212 in the first direction D1, so that the light guide 211 can have a larger size, which is beneficial for the light guide 211 to extend to the side of the light source substrate 220 away from the display panel 100.

[0057] Optionally, the surface of the first auxiliary optical element 212 facing away from the display panel 100 can be flush with at least a portion of the surface of the light source substrate 220 facing away from the display panel 100 (for example, the surface of the first auxiliary optical element 212 facing away from the display panel 100 can be flush with at least a portion of the surface of the second substrate portion 220b facing away from the display panel 100). This allows the surface of the first auxiliary optical element 212 and the surface of the light source substrate 220 facing away from the display panel 100 to have good overall flatness. That is, on the side away from the display panel 100, it is not easy for a step difference to be generated between the first auxiliary optical element 212 and the light source substrate 220. This allows the light guide 211 to be covered relatively flatly on the side of the first auxiliary optical element 212 and the light source substrate 220 facing away from the display panel 100 during the fabrication of the display module 10. This is beneficial to improving the fabrication yield of the display module 10 and to the light guide 211 receiving the light emitted by the light source 230 better.

[0058] Figure 5 This is a schematic diagram of the structure of a display module 10 provided in another embodiment of this application.

[0059] like Figure 5 As shown, in some examples, the display panel 100 may also include a polarizer to improve the display effect of the display module 10. For example, the display panel 100 may include a first polarizer 130 disposed between the driving substrate 110 and the first auxiliary optical element 212; the display panel 100 may include a second polarizer 140 disposed on the side of the color filter substrate 120 opposite to the driving substrate 110.

[0060] Optionally, in the first direction D1, the first polarizer 130 and the light source substrate 220 do not overlap, so that the arrangement between the first polarizer 130 and the light source substrate 220 does not easily increase the overall thickness of the display module 10 in the first direction D1.

[0061] Optionally, the projected area of ​​the first polarizer 130 in the first direction D1 can be smaller than the projected area of ​​the second polarizer 140 in the first direction D1, so that the first polarizer 130 can have a smaller size, which is beneficial to ensure that the first polarizer 130 and the light source substrate 220 do not overlap in the first direction D1, and at the same time, the second polarizer 140 can have a larger size, which is beneficial to improving the optical effect of the second polarizer 140.

[0062] For example, the projection of the first polarizer 130 in the first direction D1 may be located within the projection of the second polarizer 140 in the first direction D1.

[0063] In some embodiments of this application, the thicknesses of the first auxiliary optical element 212, the first polarizer 130, and the light source substrate 220 can be set in various ways (the thickness of a certain device structure described in the embodiments of this application can be the dimension of the device structure in the first direction D1). For example, the thicknesses of the first auxiliary optical element 212, the first polarizer 130, and the light source substrate 220 can be correspondingly set to facilitate the flushing of at least a portion of the surface of the first auxiliary optical element 212 on the side facing away from the display panel 100 with the surface of the light source substrate 220 on the side facing away from the display panel 100.

[0064] In some examples, such as Figure 5 As shown, when the driving substrate 110 is in direct contact with the light source substrate 220, and the first polarizer 130 is also in direct contact with the first auxiliary optical component 212, the sum of the thicknesses of the first polarizer 130 and the first auxiliary optical component 212 can be the same as the thickness of the light source substrate 220. This makes it easier for the surface of the first auxiliary optical component 212 facing away from the display panel 100 to be flush with at least a portion of the surface of the light source substrate 220 facing away from the display panel 100.

[0065] Figure 6 This is a schematic diagram of the structure of a display module 10 provided in another embodiment of this application.

[0066] In some examples, such as Figure 6 As shown, the display module 10 also includes a first adhesive layer 300, which is disposed between the light source substrate 220 and the display panel 100. The light source substrate 220 can be bonded to the display panel 100 through the first adhesive layer 300 (for example, the first adhesive layer 300 can be disposed between the light source substrate 220 and the driving substrate 110, and the light source substrate 220 can be bonded to the driving substrate 110 through the first adhesive layer 300). When the first polarizer 130 is in direct contact with the first auxiliary optical component 212, the sum of the thicknesses of the first adhesive layer 300 and the optical substrate can be equal to the sum of the thicknesses of the first auxiliary optical component 212 and the first polarizer 130, thereby facilitating the surface of the first auxiliary optical component 212 facing away from the display panel 100 to be flush with at least a portion of the surface of the light source substrate 220 facing away from the display panel 100.

[0067] Figure 7 This is a schematic diagram of the structure of a display module 10 provided in another embodiment of this application.

[0068] In some examples, such as Figure 7As shown, the display module 10 also includes a second adhesive layer 400, which is disposed between the first polarizer 130 and the first auxiliary optical component 212. The first auxiliary optical component 212 can be bonded to the first polarizer 130 through the second adhesive layer 400. When the driving substrate 110 and the light source substrate 220 are in direct contact, the sum of the thicknesses of the first polarizer 130, the second adhesive layer 400, and the first auxiliary optical component 212 can be equal to the thickness of the light source substrate 220. This facilitates the surface of the first auxiliary optical component 212 facing away from the display panel 100 to be flush with at least a portion of the surface of the light source substrate 220 facing away from the display panel 100.

[0069] Figure 8 This is a schematic diagram of the structure of a display module 10 provided in another embodiment of this application.

[0070] In some examples, such as Figure 8 As shown, when the display module 10 includes a first adhesive layer 300 and a second adhesive layer 400, the sum of the thicknesses of the first polarizer 130, the second adhesive layer 400, and the first auxiliary optical component 212 can be equal to the sum of the thicknesses of the first adhesive layer 300 and the light source substrate 220. This facilitates the surface of the first auxiliary optical component 212 facing away from the display panel 100 to be flush with at least a portion of the surface of the light source substrate 220 facing away from the display panel 100.

[0071] In some embodiments of this application, when the display module 10 includes a first adhesive layer 300, there are various ways to set the relative size relationship between the thickness of the first adhesive layer 300 and the thickness of the first polarizer 130.

[0072] In some examples, such as Figure 8 As shown, when the display module 10 includes the first adhesive layer 300, the thickness of the first adhesive layer 300 can be equal to the thickness of the first polarizer 130. This allows the first polarizer 130 and the first adhesive layer 300 to have good flatness on the surface of the first polarizer 130 and the first auxiliary optical component 212 facing away from the driving substrate 110 after the first polarizer 130 and the first auxiliary optical component 212 are bonded together on the side facing away from the driving substrate 110 during the manufacturing process of the display module 10. This facilitates the subsequent bonding of the backlight assembly 200 to the side of the first polarizer 130 and the first auxiliary optical component 212 facing away from the driving substrate 110, thereby improving the manufacturing yield of the display module 10.

[0073] Optionally, the thickness of the first polarizer 130 and the first adhesive layer 300 may be no less than 0.3 mm and no more than 0.5 mm. For example, the thickness of the first polarizer 130 and the first adhesive layer 300 may be 0.3 mm, 0.35 mm, 0.4 mm, 0.45 mm or 0.5 mm.

[0074] Optionally, when the display module 10 includes a first adhesive layer 300 and a second adhesive layer 400, and the thickness of the first adhesive layer 300 is equal to the thickness of the first polarizer 130, the sum of the thicknesses of the second adhesive layer 400 and the first auxiliary optical component 212 is equal to the thickness of the light source substrate 220. This facilitates achieving a sum of thicknesses of the first polarizer 130, the second adhesive layer 400, and the first auxiliary optical component 212 equal to the sum of thicknesses of the first adhesive layer 300 and the light source substrate 220.

[0075] Figure 9 This is a schematic diagram of the structure of a display module 10 provided in another embodiment of this application. Figure 10 This is a schematic diagram of the structure of a display module 10 provided in another embodiment of this application.

[0076] In other examples, such as Figure 9 and Figure 10 As shown, when the display module 10 includes the first adhesive layer 300, the thickness of the first adhesive layer 300 may be different from the thickness of the first polarizer 130. The thickness of the first polarizer 130 can be set according to the optical requirements of the first polarizer 130 and the first auxiliary optical component 212.

[0077] Optional, such as Figure 9 As shown, the thickness of the first polarizer 130 can be greater than the thickness of the first adhesive layer 300, and a thicker first polarizer 130 can have a better optical adjustment effect; or, as shown... Figure 10 As shown, the thickness of the first polarizer 130 can be less than the thickness of the first adhesive layer 300, which is beneficial to increase the thickness of the first auxiliary optical component 212 while achieving flush alignment between the first auxiliary optical component 212 and the light source substrate 220. A thicker first auxiliary optical component 212 can have a better optical adjustment effect.

[0078] In some embodiments of this application, when the display module 10 includes a first adhesive layer 300 and a second adhesive layer 400, there are various ways to set the relative size relationship between the thickness of the first adhesive layer 300 and the thickness of the second adhesive layer 400.

[0079] Figure 11 This is a schematic diagram of the structure of a display module 10 provided in another embodiment of this application.

[0080] In some examples, see Figures 7 to 11 The thickness of the first adhesive layer 300 may be different from the thickness of the second adhesive layer 400. The thickness of the second adhesive layer 400 can be set according to the optical requirements of the first polarizer 130 and the first auxiliary optical component 212.

[0081] Optional, such as Figures 7 to 10As shown, the thickness of the second adhesive layer 400 can be greater than the thickness of the first adhesive layer 300. This is beneficial for reducing the thickness of the first auxiliary optical component 212 or the first polarizer 130 while ensuring that the first auxiliary optical component 212 is flush with the light source substrate 220. This, in turn, helps to reduce the weight of the backlight assembly 200 and, consequently, the overall weight of the display module 10. Alternatively, as... Figure 11 As shown, the thickness of the second adhesive layer 400 can be less than the thickness of the first adhesive layer 300, which is beneficial to increasing the thickness of the first auxiliary optical component 212 or the first polarizer 130 when the first auxiliary optical component 212 is flush with the light source substrate 220, thereby improving the optical adjustment effect of the first auxiliary optical component 212 or the first polarizer 130.

[0082] Figure 12 This is a schematic diagram of the structure of a display module 10 provided in another embodiment of this application.

[0083] In other examples, such as Figure 12 As shown, the thickness of the first adhesive layer 300 can be equal to the thickness of the second adhesive layer 400, so that the first adhesive layer 300 and the second adhesive layer 400 can be prepared using the same or similar processes during the preparation of the display module 10, thereby improving the preparation efficiency of the display module 10. For example, the first adhesive layer 300 and the second adhesive layer 400 can be prepared simultaneously on one side of the display panel 100.

[0084] Optionally, the materials of the first adhesive layer 300 and the second adhesive layer 400 can be the same.

[0085] In some embodiments of this application, the materials of the first adhesive layer 300 and the second adhesive layer 400 can be configured in various ways. The materials of the first adhesive layer 300 and the second adhesive layer 400 may include transparent adhesive materials, making it less likely that the first adhesive layer 300 and the second adhesive layer 400 will significantly obstruct light. For example, the materials of the first adhesive layer 300 and the second adhesive layer 400 may include pressure-sensitive adhesives (PSA).

[0086] Figure 13 This is a schematic diagram of the structure of a display module 10 provided in another embodiment of this application.

[0087] In some embodiments of this application, the spacing between the first polarizer 130 and the light source substrate 220 can be configured in various ways. For example... Figures 5 to 12 As shown, the distance between the first polarizer 130 and the light source substrate 220 in the second direction D2 can be zero; or, as... Figure 13As shown, the distance between the first polarizer 130 and the light source substrate 220 in the second direction D2 can be greater than zero, so that when the light source substrate 220 is attached to one side of the driving substrate 110, the first polarizer 130 is less likely to collide with the light source substrate 220, thereby improving the manufacturing yield of the display module 10. In addition, when the display module 10 also includes a first adhesive layer 300, by setting the distance between the first polarizer 130 and the light source substrate 220 in the second direction D2 to be greater than zero, it is also beneficial to increase the size of the first adhesive layer 300, so that the first adhesive layer 300 can protrude towards the first polarizer 130 relative to the light source substrate 220, which is beneficial to improve the bonding effect between the first adhesive layer 300 and the light source substrate 220.

[0088] For example, the distance between the first polarizer 130 and the light source substrate 220 in the second direction D2 can be 0-0.2 mm.

[0089] Figure 14 This is a schematic diagram of the structure of a display module 10 provided in another embodiment of this application.

[0090] Optionally, when the display module 10 includes a first adhesive layer 300, such as Figure 13 As shown, the first adhesive layer 300 can be connected to the first polarizer 130, so that the first adhesive layer 300 can also be used to bond and fix the first polarizer 130, thereby improving the structural stability of the display module 10; or, when the display module 10 includes the first adhesive layer 300, such as Figure 14 As shown, the first adhesive layer 300 and the first polarizer 130 can be spaced apart, so that when the light source substrate 220 is attached to one side of the driving substrate 110, the first adhesive layer 300 is facilitated to deform, thereby improving the bonding effect between the first adhesive layer 300 and the light source substrate 220.

[0091] Figure 15 This is a schematic diagram of the structure of a display module 10 provided in another embodiment of this application.

[0092] In some embodiments, such as Figure 15 As shown, the backlight assembly 200 also includes a second auxiliary optical element 240 disposed between the light guide 211 and the light source 230. The second auxiliary optical element 240 can be used to adjust the light emitted by the light source 230. After passing through the second auxiliary optical element 240, the light can be emitted from the light guide 211 in a more uniform manner and with a more suitable propagation intensity.

[0093] For example, the second auxiliary optical structure includes at least one of a prism film and a light diffusion film.

[0094] Optionally, the second auxiliary optical structure can be connected to the first side surface 2113, so that light can pass through the second auxiliary optical element 240 and then through the first side surface 2113 to the interior of the light guide element 211.

[0095] In some embodiments of this application, the light source 230 can be configured in various ways. The light source 230 may include backlight sources such as light-emitting diodes (LEDs) and cold cathode fluorescent lamps (CCFLs). For example, the light source 230 may include at least one of mini LEDs and micro LEDs, which allows the light source 230 to have a smaller volume, which is beneficial for reducing the overall thickness of the display module 10.

[0096] Figure 16 This is a schematic diagram of the arrangement of a light source 230 and a light guide 211 according to an embodiment of this application. The direction D3 in the diagram can represent a third direction D3. The first direction D1, the second direction D2, and the third direction D3 can intersect each other; for example, the first direction D1, the second direction D2, and the third direction D3 can be perpendicular to each other. The third direction D3 can also be parallel to the plane containing the light source substrate 220.

[0097] Optional, such as Figure 16 As shown, there can be multiple light sources 230, and multiple light sources 230 can be arranged along the third direction D3, so that the light emitted by each light source 230 can be directed more evenly onto the first side surface 2113 of the light guide 211 on the third direction D3, which is beneficial to improving the light output uniformity of the backlight assembly 200.

[0098] Optionally, the light sources 230 may be arranged in a column on the third direction D3. For example, the backlight assembly 200 may include a column of light sources 201, which may include light sources 230 located in the same column on the third direction D3.

[0099] Optionally, when the light source 230 includes a light-emitting diode (e.g., a miniature light-emitting diode), adjacent light sources 230 on the third direction D3 can contact each other, which is beneficial to increase the arrangement density of the light sources 230 to better increase the light output brightness of the backlight assembly 200, and also to further improve the uniformity of the light emitted from the light source 230 onto the first side surface 2113.

[0100] Optionally, adjacent light sources 230 on the third direction D3 can be in contact with each other, which means that the distance between adjacent light sources 230 on the third direction D3 can be zero.

[0101] Figure 17This is a schematic diagram of the arrangement of a light source 230 and a light guide 211 according to another embodiment of this application. Figure 18 This is a schematic diagram showing the arrangement of a light source 230 and a light guide 211 according to another embodiment of this application. Figure 19 This is a schematic diagram of the structure of a display module 10 provided in another embodiment of this application.

[0102] Optionally, there are several ways to set the number of light source columns 201. As an example, such as... Figure 16 As shown in the foregoing figures, the backlight assembly 200 may include only one light source array 201, or it may include only one light source substrate 220, with each light source in the light source array 201 disposed on the same light source substrate 220. As another example, such as... Figures 17 to 19 As shown, the backlight assembly 200 may include at least two light source columns 201.

[0103] Optionally, when the backlight assembly 200 includes at least two light source columns 201, there are multiple ways to arrange the positions of the light source columns 201.

[0104] As an example, such as Figure 17 As shown, at least two light source columns 201 can be disposed on both sides of the optical device 210 in the second direction D2, so that the light emitted by each light source column 201 can be directed from both sides of the optical device 210 in the second direction D2 to the optical device 210, thereby improving the light emission uniformity of the backlight assembly 200. Specifically, to drive the light source columns 201 disposed on both sides of the optical device 210 in the second direction D2, the backlight assembly 200 may include at least two light source substrates 220, which can be disposed on both sides of the optical device 210 in the second direction D2.

[0105] As an example, such as Figure 18 and Figure 19 As shown, the number of light source columns 201 located on the same side of the optical device 210 in the second direction D2 can be at least two, which is beneficial to increasing the amount of light entering the optical device 210 from one side, thereby improving the light output brightness of the backlight assembly 200. Adjacent light source columns 201 can be spaced apart in the second direction D2, which is beneficial for the light emitted by the light source 230 to be emitted more fully and for the heat dissipation of the light source 230. The light source columns 201 located on the same side of the optical device 210 in the second direction D2 can be disposed on the same light source substrate 220.

[0106] Figure 20 This is a schematic diagram of the structure of a display module 10 provided in another embodiment of this application.

[0107] Optional, such as Figure 20As shown, the side of the light source 230 facing away from the light source substrate 220 may have a third surface 231. In the first direction D1, the distance between the third surface 231 and the light source substrate 220 may be less than or equal to the distance between the second surface 2112 and the light source substrate 220. This ensures that, in the first direction D1, the protrusion of the light source 230 relative to the light source substrate 220 is not likely to be greater than the protrusion of the light guide 211 relative to the light source substrate 220. This facilitates the placement of other device structures (e.g., such as...) on the side of the light source 230 facing away from the light source substrate 220 without affecting the thickness of the display module 10. Figure 20 The first reflector 250 and adhesive material 500 described herein (and so on) help reduce the risk of other device structures rubbing against the light source 230 during the fabrication of the display module 10.

[0108] For example, by setting it on the first direction D1, the distance between the third surface 231 and the light source substrate 220 can be less than or equal to the distance between the second surface 2112 and the light source substrate 220, so that during the process of covering the light guide 211 on the side of the light source substrate 220 and the first auxiliary optical component 212 away from the display panel 100, the device structure used to cover the light guide 211 is not easy to rub against the light source 230.

[0109] Optionally, since micro-LEDs have a smaller volume compared to sub-millimeter LEDs, the light source 230 can include a micro-LED. This allows for the realization that "in the first direction D1, the distance between the third surface 231 and the light source substrate 220 can be less than or equal to the distance between the second surface 2112 and the light source substrate 220," without requiring the light guide 211 to have an excessive thickness. This, in turn, helps to reduce the thickness of the display module 10. For ease of description, the following embodiments will be described using the example of the light source 230 including a micro-LED.

[0110] For example, the thickness of the light guide 211 can be 50 micrometers to 100 micrometers, and the distance between the third surface 231 of the light source 230 and the light source substrate 220 can be 10 micrometers to 15 micrometers.

[0111] Optionally, the light generated by the light source 230 can be emitted outward from multiple of its outer surfaces. For example, the light source 230 may also have a second side surface 232 connected to the side of the third surface 231 near the display panel 100, and the light generated by the light source 230 can be emitted outward from at least the third surface 231 and the second side surface 232.

[0112] In some embodiments, such as Figure 20As shown, the backlight assembly 200 also includes a first reflector 250, which includes a first reflective portion 251 and a second reflective portion 252 connected to each other. The first reflective portion 251 is located on the side of the light source 230 away from the optical device 210, and the second reflective portion 252 is located on the side of the light source 230 away from the light source substrate 220.

[0113] In this embodiment, the material of the first reflector 250 may include a reflective material. By providing a first reflective portion 251 on the side of the light source 230 away from the optical device 210 and a second reflective portion 252 on the side of the light source 230 away from the light source substrate 220, the first reflector 250 can effectively surround the side of the light source 230 away from the light source substrate 220. This facilitates the first reflector 250 to reflect the light emitted by the light source 230 more fully to the light guide 211, thereby facilitating the light guide 211 to receive the light emitted by the light source 230 more fully, and thus improving the light output brightness of the backlight assembly 200. For example, the first reflective portion 251 can be used to reflect light emitted from the second side surface 232 located on the side of the third surface 231 away from the optical device 210, and the second reflective portion 252 can be used to reflect light emitted from the third surface 231.

[0114] Optionally, the material of the first reflector 250 may include a metallic material such as aluminum or silver that has a good reflective effect.

[0115] Optionally, the first reflective part 251 can be connected to the light source substrate 220, which helps to increase the overall size of the first reflective part 250 and makes the light emitted by the light source 230 less likely to leak outward.

[0116] Optionally, the first reflector 250 further includes a third reflector 253, which is connected to the second reflector 252. The third reflector 253 is located on the side of the optical device 210 away from the display panel 100, so that the light emitted by the light source 230 is less likely to leak outward from between the first reflector 250 and the optical device 210. This further facilitates the first reflector 250 to reflect the light emitted by the light source 230 more fully and guide it to the optical device 210.

[0117] For example, the third reflective portion 253 may be connected to the surface of the light guide 211 opposite to the display panel 100 (for example, the third reflective portion 253 may be connected to the surface of the first light guide 211a opposite to the display panel 100).

[0118] Figure 21 This is a schematic diagram of the structure of a display module 10 provided in another embodiment of this application.

[0119] Optional, such as Figure 21As shown, the first reflector 250 may further include a fourth reflector 254, which may be connected to the first reflector 251, the second reflector 252 and the third reflector 253. The fourth reflector 254 may be located on at least one side of the light source 230 in the third direction D3, which is beneficial for the first reflector 250 to further surround the light source 230, thereby making it easier for the first reflector 250 to reflect the light emitted by the light source 230 to the light guide 211 more fully.

[0120] Figure 22 This is a schematic diagram of the structure of a display module 10 provided in another embodiment of this application.

[0121] In some embodiments of this application, the first reflector 250 has various structural configurations. In some examples, such as... Figure 20 and Figure 21 As shown, the first reflector 250 can be a single-layer structure, and the entire first reflector 250 can be used to reflect light. In other examples, such as Figure 22 As shown, the first reflector 250 may be a multi-layer structure. The first reflector 250 may include a reflective layer 250a disposed on the side of the reflective layer 250a away from the light source 230. The material of the reflective layer 250a may include a reflective material. The reflective layer 250a can be used to reflect the light emitted by the inner light source 230, and the functional layer 250b can be used to protect the reflective layer 250a.

[0122] Optionally, when the first reflector 250 includes a reflective layer 250a and a functional layer 250b, the material of the functional layer 250b may include a light-absorbing material, so that the functional layer 250b can better restrict light from shining onto the surface of the reflective layer 250a away from the light source 230.

[0123] Figure 23 This is a schematic diagram of the structure of a display module 10 provided in another embodiment of this application.

[0124] In some examples, such as Figure 23 As shown, the backlight assembly 200 also includes an adhesive material 500, which fills the space between the first reflector 250 and the light source substrate 220. The adhesive material 500, filling the space between the first reflector 250 and the light source substrate 220, encapsulates the light source 230 and mitigates external impacts. When the display module 10 is subjected to external impacts, the impact is less likely to damage the light source 230 encased in the adhesive material 500. Furthermore, the adhesive material 500 can also be used to fix and support the first reflector 250, giving the first reflector 250 better structural stability.

[0125] For example, in the fabrication process of the display module 10, the fabrication step of the first reflector 250 can be located after the fabrication step of the adhesive material 500. Specifically, an adhesive material 500 with a specific shape can be fabricated first on the side of the light source substrate 220 away from the display panel 100. Then, the first reflector 250 can be fabricated on the adhesive material 500. Due to the shape of the outer surface of the adhesive material 500, the first reflector 250 covering the outer surface of the adhesive material 500 can also have a specific shape. Under the fixing and supporting effect of the adhesive material 500, the first reflector 250 can maintain its specific shape well, so that the first reflector 250 can have good structural stability.

[0126] Optionally, the material of the adhesive 500 may include a transparent material, so that the adhesive 500 is not likely to block the light emitted by the light source 230.

[0127] Optionally, the adhesive material 500 can be prepared using inkjet printing (IJP) technology. Specifically, the adhesive material 500 can be formed layer by layer through multiple inkjet printing processes (i.e., printing and curing the material 500 multiple times), so that the final multi-layered adhesive material 500 can form a specific shape.

[0128] Optionally, the first reflective element 250 can be covered on the outer surface of the adhesive material 500 by coating or laminating. Specifically, during the process of making the display module 10, the first reflective element 250 can be formed by coating the material of the first reflective element 250 onto the outer surface of the prepared adhesive material 500; or, the first reflective element 250 can be prepared separately first, and the first reflective element 250 can be in the form of a thin film. During the process of making the display module 10, the thin film-shaped first reflective element 250 can be attached to the outer surface of the adhesive material 500.

[0129] In some embodiments of this application, the morphology of the first reflector 250 can be configured in various ways.

[0130] In some examples, such as Figure 23 As shown, at least a portion of the surface of the first reflector 250 facing the light source substrate 220 can be planar, making the overall shape of the first reflector 250 more regular. This reduces the difficulty of fabricating the adhesive material 500 and the first reflector 250, and also makes the surface of the first reflector 250 facing away from the display panel 100 generally flatter, which is beneficial for setting other device structures on the side of the first reflector 250 facing away from the display panel 100. At least a portion of the surface of the adhesive material 500 facing away from the light source substrate 220 can be planar, so as to cover and form the first reflector 250 of the corresponding shape on the adhesive material 500.

[0131] For example, the surface of the adhesive 500 near the first reflective portion 251 may be a plane perpendicular to the second direction D2, and the surface of the first reflective portion 251 facing the light source substrate 220 may be a plane perpendicular to the second direction D2; and / or, the surface of the adhesive 500 near the second reflective portion 252 may be a plane perpendicular to the first direction D1, and the surface of the second reflective portion 252 facing the light source 230 may be a plane perpendicular to the first direction D1; and / or, the surface of the adhesive 500 near the third reflective portion 253 may be a plane perpendicular to the first direction D1, and the surface of the third reflective portion 253 facing the optical device 210 may be a plane perpendicular to the first direction D1; and / or, the surface of the adhesive 500 near the fourth reflective portion 254 may be a plane perpendicular to the third direction D3, and the surface of the fourth reflective portion 254 facing the light source 230 may be a plane perpendicular to the third direction D3.

[0132] Figure 24 This is a schematic diagram of the structure of a display module 10 provided in another embodiment of this application.

[0133] In some examples, such as Figure 24 As shown, the surface of the first reflector 250 facing the light source substrate 220 is curved, which facilitates the first reflector 250 to reflect the light emitted by the light source 230 to the first side surface 2113 of the light guide 211 more efficiently and fully. At least a portion of the surface of the adhesive material 500 facing away from the light source substrate 220 may be curved, so as to cover the adhesive material 500 to form a first reflector 250 of a corresponding shape.

[0134] For example, the surface of the adhesive 500 near the first reflective portion 251 may be curved, and the surface of the first reflective portion 251 facing the light source substrate 220 may be curved; and / or, the surface of the adhesive 500 near the second reflective portion 252 may be curved, and the surface of the second reflective portion 252 facing the light source 230 may be curved; and / or, the surface of the adhesive 500 near the third reflective portion 253 may be curved, and the surface of the third reflective portion 253 facing the optical device 210 may be curved; and / or, the surface of the adhesive 500 near the fourth reflective portion 254 may be curved, and the surface of the fourth reflective portion 254 facing the light source 230 may be curved.

[0135] Optionally, the second reflective portion 252 includes a first reflective portion 252a and a second reflective portion 252b connected to each other. The orthographic projection of the first reflective portion 252a on the display panel 100 overlaps with the orthographic projection of the light source 230 on the display panel 100. The orthographic projection of the second reflective portion 252b on the display panel 100 does not overlap with the orthographic projection of the light source 230 on the display panel 100. The distance between the first reflective portion 252a and the light source substrate 220 is greater than the distance between the second reflective portion 252b and the light source substrate 220.

[0136] By setting the distance between the first reflective portion 252a and the light source substrate 220 to be greater than the distance between the second reflective portion 252b and the light source substrate 220, a larger distance can be maintained between the first reflective portion 252a and the light source 230. This provides a larger buffer space between the first reflective portion 252a and the light source 230 when the first reflector 250 is subjected to external impact, thus helping to protect the light source 230 from damage by external forces. Furthermore, by setting the distance between the first reflective portion 252a and the light source substrate 220 to be greater than the distance between the second reflective portion 252b and the light source substrate 220, a smaller distance can be maintained between the second reflective portion 252b and the light source 230. This facilitates the focusing of light under the action of the second reflective portion 252b, thereby improving the efficiency of the first reflector 250 in reflecting light towards the optical device 210.

[0137] Optionally, the distance between the surface of the adhesive material 500 facing the first reflective portion 252a and the light source substrate 220 can be greater than the distance between the surface of the adhesive material 500 facing the second reflective portion 252b and the light source substrate 220, thereby facilitating the formation of a morphology in which "the distance between the first reflective portion 252a and the light source substrate 220 is greater than the distance between the second reflective portion 252b and the light source substrate 220".

[0138] Optionally, the distance between the surface of the first reflective portion 252a near the light source 230 and the light source substrate 220 can be greater than the distance between the surface of the light guide 211 away from the light source substrate 220 and the light source substrate 220, so that the first reflective portion 252a and the light source 230 can have a larger buffer space.

[0139] Optionally, the second reflective portion 252b includes a first sub-portion 252ba located near the optical device 210 in the first reflective portion 252a. Along the direction from the first reflective portion 251 to the optical device 210, the distance between the first sub-portion 252ba and the light source substrate 220 gradually decreases. This allows the first sub-portion 252ba to gradually focus light along the direction from the first reflective portion 251 to the optical device 210, thereby improving the efficiency of the first reflector 250 in reflecting light towards the optical device 210. Furthermore, the gradual decrease in the distance between the first sub-portion 252ba and the light source substrate 220 along the direction from the first reflective portion 251 to the optical device 210 also helps to reduce the space occupied by the first sub-portion 252ba and its inner adhesive material 500 in the first direction D1, thus facilitating the arrangement of other device structures on the side of the first sub-portion 252ba away from the light source substrate 220.

[0140] Optionally, along the direction from the first reflective portion 251 to the optical device 210, the distance between the surface of the adhesive material 500 facing the first sub-part 252ba and the light source substrate 220 can be gradually reduced, thereby facilitating the formation of a morphology in which "the distance between the first sub-part 252ba and the light source substrate 220 gradually decreases along the direction from the first reflective portion 251 to the optical device 210".

[0141] For example, the thickness of the adhesive material 500 can be gradually reduced along the direction from the first reflective portion 251 to the optical device 210.

[0142] Optionally, the second reflective portion 252b includes a second sub-portion 252bb located away from the optical element 210 in the first reflective portion 252a. Along the direction from the optical element to the first reflective portion 251, the distance between the second sub-portion 252bb and the light source substrate 220 gradually decreases, allowing the surface of the second sub-portion 252bb facing the light source 230 to better reflect light towards the optical element 210. This improves the efficiency of the first reflector 250 in reflecting light towards the optical element 210. Furthermore, the gradual decrease in distance between the second sub-portion 252bb and the light source substrate 220 along the direction from the optical element to the first reflective portion 251 also helps reduce the space occupied by the second sub-portion 252bb and its inner adhesive material 500 in the first direction D1. This facilitates the arrangement of other device structures on the side of the second sub-portion 252bb away from the light source substrate 220.

[0143] Optionally, along the direction from the optical device 210 to the first reflective portion 251, the distance between the surface of the adhesive material 500 facing the second sub-part 252bb and the light source substrate 220 gradually decreases, thereby facilitating the formation of a morphology in which "the distance between the second sub-part 252bb and the light source substrate 220 gradually decreases along the direction from the optical device 210 to the first reflective portion 251".

[0144] For example, the thickness of the adhesive material 500 can be gradually reduced along the direction from the optical device 210 to the first reflective part 251.

[0145] Optionally, the maximum distance between the first reflector 250 and the light source substrate 220 is not less than 120 micrometers and not more than 520 micrometers. By setting the maximum distance between the first reflector 250 and the light source substrate 220 to be not less than 120 micrometers, the space formed by the first reflector 250 and the light source substrate 220 is not too small, which is beneficial for buffering external impacts and for heat dissipation of the light source substrate 220. By setting the maximum distance between the first reflector 250 and the light source substrate 220 to be not more than 520 micrometers, the shape of the first reflector 250 is less likely to have an excessive impact on the thickness of the display module 10, which is beneficial for reducing the thickness of the display module 10.

[0146] For example, the maximum distance between the first reflective portion 252a and the light source substrate 220 is not less than 120 micrometers and not more than 520 micrometers.

[0147] Optionally, the maximum distance between the surface of the adhesive material 500 facing away from the light source substrate 220 and the light source substrate 220 is not less than 120 micrometers and not more than 520 micrometers, which is beneficial to achieving a morphology where "the maximum distance between the first reflector 250 and the light source substrate 220 is not less than 120 micrometers and not more than 520 micrometers". For example, the maximum thickness of the adhesive material 500 is not less than 120 micrometers and not more than 520 micrometers.

[0148] Optionally, the minimum distance between the first reflector 250 and the light source 230 is not less than 100 micrometers and not more than 500 micrometers. By setting the minimum distance between the first reflector 250 and the light source 230 to not less than 100 micrometers, the distance between the two is not too small, which helps to mitigate the impact of external impacts on the light source 230. By setting the minimum distance between the first reflector 250 and the light source 230 to not more than 500 micrometers, the first reflector 250 does not occupy too large a size, which is beneficial for the arrangement of other device structures and helps to reduce the thickness of the display module 10.

[0149] For example, the minimum distance between the first reflective portion 252a and the light source 230 is not less than 100 micrometers and not more than 500 micrometers; the minimum distance between the second reflective portion 252b and the light source 230 is not less than 100 micrometers and not more than 500 micrometers; the minimum distance between the third reflective portion and the light source 230 is not less than 100 micrometers and not more than 500 micrometers; and the minimum distance between the fourth reflective portion and the light source 230 is not less than 100 micrometers and not more than 500 micrometers.

[0150] Optionally, the minimum distance between the surface of the adhesive material 500 on the side facing away from the light source substrate 220 and the light source is not less than 100 micrometers and not more than 500 micrometers, which is beneficial to achieving the morphology of "the minimum distance between the first reflector 250 and the light source 230 is not less than 100 micrometers and not more than 500 micrometers".

[0151] Figure 25 This is a schematic diagram of the structure of a display module 10 provided in another embodiment of this application.

[0152] In some examples, such as Figure 25 As shown, a heat dissipation groove 250c is provided on the side of the first reflector 250 facing away from the light source 230. The heat dissipation groove 250c facilitates heat dissipation between the light source substrate 220 and the light source, thereby improving the working stability of the display module 10.

[0153] Optionally, the heat dissipation slot 250c may not penetrate the first reflector 250, so that the setting of the heat dissipation slot 250c is less likely to cause light leakage of the backlight assembly 200.

[0154] Optionally, when the first reflector 250 has a multilayer structure, the heat dissipation groove 250c can be formed on the outermost film layer structure of the first reflector 250. For example, when the first reflector 250 includes a reflective layer 250a and a functional layer 250b, the heat dissipation groove 250c can be formed on the functional layer 250b.

[0155] In some embodiments of this application, the heat dissipation groove 250c can be positioned in various ways. The heat dissipation groove 250c can be opened on the first reflector 250 at a position that is more likely to have a higher temperature.

[0156] In some examples, such as Figure 25As shown, the heat dissipation groove 250c can be formed on at least one of the first reflective portion 251, the second reflective portion 252, and the fourth reflective portion 254, while the third reflective portion 253 may not have the heat dissipation groove 250c. In this example, since the first reflective portion 251, the second reflective portion 252, and the fourth reflective portion 254 are relatively close to the light source 230, forming the heat dissipation groove 250c on at least one of the first reflective portion 251, the second reflective portion 252, and the fourth reflective portion 254 is beneficial to improving the heat dissipation efficiency of the display module 10. By not forming the heat dissipation groove 250c on the third reflective portion 253, which is farther away from the light source 230, the structural stability of the third reflective portion 253 is improved, allowing the third reflective portion 253 to be more firmly connected to the optical device 210.

[0157] As an example, such as Figure 25 As shown, when at least a portion of the heat dissipation grooves 250c are formed in the second reflective portion 252, only the first reflective portion 252a may have heat dissipation grooves 250c, while the second reflective portion 252b may not have heat dissipation grooves 250c. In this example, since the first reflective portion 252a is closer to the light source 230 than the second reflective portion 252b, it is more likely to have a higher temperature during the operation of the display module 10. Therefore, by forming heat dissipation grooves 250c on the first reflective portion 252a, heat dissipation efficiency can be improved. At the same time, by setting the second reflective portion 252b to not have heat dissipation grooves 250c, the structural stability of the second reflective portion 252b is improved.

[0158] Figure 26 This is a schematic diagram of the structure of a display module 10 provided in another embodiment of this application.

[0159] As another example, such as Figure 26 As shown, both the first reflective portion 252a and the second reflective portion 252b are provided with heat dissipation slots 250c, so that both the first reflective portion 252a and the second reflective portion 252b can have good heat dissipation capabilities.

[0160] For example, the first reflective portion 252a may have a heat dissipation groove 250c, and at least one of the first sub-part 252ba and the second sub-part 252bb may have a heat dissipation groove 250c.

[0161] Figure 27 This is a schematic diagram of the structure of a display module 10 provided in another embodiment of this application.

[0162] Optional, such as Figure 27As shown, when both the first reflective portion 252a and the second reflective portion 252b are provided with heat dissipation grooves 250c, the depth of the heat dissipation groove 250c in the first reflective portion 252a is greater than the depth of the heat dissipation groove 250c in the second reflective portion 252b. This allows the first reflective portion 252a, which is closer to the light source 230, to have a better heat dissipation effect, while the second reflective portion 252b, which is farther away from the light source 230, can have better structural stability.

[0163] For example, the first reflective portion 252a and the first sub-portion 252ba may be provided with heat dissipation grooves 250c, and the depth of the heat dissipation groove 250c provided in the first reflective portion 252a is greater than the depth of the heat dissipation groove 250c provided in the first sub-portion 252ba; and / or, the first reflective portion 252a and the second sub-portion 252bb may be provided with heat dissipation grooves 250c, and the depth of the heat dissipation groove 250c provided in the first reflective portion 252a is greater than the depth of the heat dissipation groove 250c provided in the second sub-portion 252bb.

[0164] Figure 28 This is a schematic diagram of the structure of a display module 10 provided in another embodiment of this application.

[0165] Optional, such as Figure 28 As shown, when the first sub-part 252ba has a heat dissipation groove 250c, the depth of the heat dissipation groove 250c in the first sub-part 252ba gradually decreases along the direction from the first reflector 251 to the optical device 210. This allows the heat dissipation groove 250c in the first sub-part 252ba that is closer to the light source 230 to have a larger depth, which is beneficial to improving the heat dissipation capacity of the first sub-part 252ba that is closer to the light source 230. At the same time, it allows the heat dissipation groove 250c in the first sub-part 252ba that is farther away from the light source 230 to have a smaller depth, which is beneficial to improving the structural stability of the first sub-part 252ba that is farther away from the light source 230.

[0166] Optional, such as Figure 28 As shown, when the second sub-part 252bb has a heat dissipation groove 250c, the depth of the heat dissipation groove 250c in the second sub-part 252bb gradually decreases along the direction from the optical device 210 to the first reflective part 251. This allows the heat dissipation groove 250c in the second sub-part 252bb that is closer to the light source 230 to have a larger depth, which is beneficial to improving the heat dissipation capacity of the second sub-part 252bb that is closer to the light source 230. At the same time, it allows the heat dissipation groove 250c in the second sub-part 252bb that is farther away from the light source 230 to have a smaller depth, which is beneficial to improving the structural stability of the second sub-part 252bb that is farther away from the light source 230.

[0167] Figure 29This is a schematic diagram of the structure of a display module 10 provided in another embodiment of this application.

[0168] In some examples, such as Figure 29 As shown, the light source substrate 220 may include a main body 221 and a reflective structure 222 disposed on the side of the main body 221 facing away from the display panel 100. The material of the reflective structure 222 includes a reflective material. By providing the reflective structure 222 on the side of the main body 221 facing away from the display panel 100, the light reflected from the first reflector 250 can be further guided to the light guide 211 via the reflective structure 222. This facilitates the light guide 211 to receive the light emitted by the light source 230 more fully, thereby improving the light output brightness of the backlight assembly 200.

[0169] Optionally, the material of the reflective structure 222 may include a metallic material such as aluminum or silver that has a good reflective effect. For example, the material of the reflective structure 222 may include metallic ink with a good reflective effect.

[0170] Optionally, in the first direction D1, the reflective structure 222 may at least partially overlap with the first reflector 250, which facilitates the reflection of light emitted from the light source 230 between the reflective structure 222 and the first reflector 250. This allows the reflective structure 222 and the first reflector 250 to efficiently reflect the light emitted from the light source 230 to the guide light member 211. For example, the projection of the reflective structure 222 in the first direction D1 may lie within the projection of the first reflector 250 in the first direction D1.

[0171] Optionally, the main body 221 may be a glass substrate or a printed circuit board, and the light source 230 may be driven by a passive matrix (PM) or an active matrix (AM).

[0172] Figure 30 This is a schematic diagram of the structure of a light source substrate 220 and a light source provided in an embodiment of this application.

[0173] Optional, such as Figure 30 As shown, the main body 221 can be electrically connected to the light source 230, and the main body 221 can be used to control and drive the operation of the light source 230. For example, the main body 221 may include a light source circuit 221a, and the light source 230 can be electrically connected to the light source circuit 221a, which can be used to control and drive the operation of the light source.

[0174] Optionally, the main body 221 may further include multiple insulating layers 221b, and the device structure of the light source circuit 221a may be disposed between adjacent insulating layers 221b. The insulating layer 221b may include a passivation layer 221ba disposed on the side of the light source circuit 221a near the light source 230. The passivation layer 221ba may have a connecting opening 221bb, through which the light source 230 can be electrically connected to the light source circuit 221a.

[0175] Figure 31 This is a schematic diagram of the structure of a light source substrate 220 and a light source 230 provided in another embodiment of this application.

[0176] In some embodiments of this application, the relative positions of the reflective structure 222 and the light source 230 are arranged in various ways.

[0177] In some examples, such as Figure 30 As shown, the reflective structure 222 may have a clearance opening 222a, through which the light source 230 can be electrically connected to the light source circuit 221a.

[0178] For example, the clearance opening 222a can be connected to the connecting opening 221bb, and the light source 230 can be electrically connected to the light source circuit 221a via the clearance opening 222a and the connecting opening 221bb.

[0179] Optionally, the reflective structure 222 may be arranged around the light source 230.

[0180] In the example on the other side, such as Figure 31 As shown, the material of the reflective structure 222 may include conductive material, and the light source 230 can be electrically connected to the light source circuit 221a through the reflective structure 222.

[0181] For example, the reflective structure 222 may include a first portion 222b and a second portion 222c spaced apart. The material of the first portion 222b may include a conductive material. The first portion 222b may be at least partially located within the communicating opening 221bb and electrically connected to the light source circuit 221a. The light source 230 may be electrically connected to the light source circuit 221a through the first portion 222b. The second portion 222c may be used to reflect the light emitted by the light source.

[0182] Figure 32 This is a schematic diagram of the structure of a display module 10 provided in another embodiment of this application.

[0183] In some embodiments, such as Figure 32As shown, the optical device 210 may further include a second reflector 213 disposed on the side of the light guide 211 facing away from the display panel 100. The material of the second reflector 213 may include a reflective material. By disposing of the second reflector 213 on the side of the light guide 211 facing away from the display panel 100, light emitted from the second surface 2112 can be reflected back into the light guide 211 by the reflection of the second reflector 213, allowing light to be emitted more fully from the first surface 2111, thereby improving the light output of the backlight assembly 200.

[0184] Optionally, the material of the second reflector 213 may include a metal material such as aluminum or silver that has a good reflective effect. Optionally, the second reflector 213 may be covered on the side of the light guide 211 away from the display panel 100 by coating or applying a film.

[0185] Optionally, in the first direction D1, the first reflector 250 may not overlap with the second reflector 213, thereby helping to reduce the thickness of the display module 10.

[0186] Optionally, the first reflector 250 can be connected to the second reflector 213 to better limit light leakage from the second surface 2112. The first reflector 250 and the second reflector 213 can be separate structures, or they can be integrally formed.

[0187] Figure 33 This is a schematic diagram of the structure of a display module 10 provided in another embodiment of this application.

[0188] In some examples, such as Figure 33 As shown, the display module 10 also includes a first circuit board 600 and a second circuit board 700. The first circuit board 600 is connected to the display panel 100, and the second circuit board 700 is connected to the light source substrate 220. The first circuit board 600 can be used to control and drive the operation of the display panel 100, and the second circuit board 700 can be used to control and drive the operation of the light source substrate 220.

[0189] For example, the first circuit board 600 can be connected to the driving substrate 110, and the first circuit board 600 can be used to control and drive the operation of the driving substrate 110.

[0190] Optionally, the first circuit board 600 includes a first board body 610, which is located on the side of the light source substrate 220 away from the display panel 100 in the first direction D1. The first board body 610 can be used to bond or connect the first circuit board 600 to other device structures. By placing the first board body 610 on the side of the light source substrate 220 away from the display panel 100, it is beneficial to reduce the bezel size of the display module 10.

[0191] Optionally, the second circuit board 700 includes a second board body 710, which is located on the side of the light source substrate 220 away from the display panel 100 in the first direction D1. The second board body 710 can be used to bond or connect the second circuit board 700 to other device structures. By placing the second board body 710 on the side of the light source substrate 220 away from the display panel 100, it is beneficial to reduce the bezel size of the display module 10.

[0192] Optionally, the first circuit board 600 may include a third board portion 620 connected to the first board portion 610, and the second circuit board 700 may include a fourth board portion 720 connected to the second board portion 710. In the second direction D2, both the third board portion 620 and the fourth board portion 720 are located on the side of the light source substrate 220 away from the optical device 210. The third board portion 620 in the first circuit board 600 can be bent relative to the first board portion 610, thereby facilitating the reduction of the bezel size of the display module 10. Similarly, the fourth board portion 720 in the second circuit board 700 can be bent relative to the second board portion 710, thereby facilitating the reduction of the bezel size of the display module 10.

[0193] Optionally, the first circuit board 600 may further include a fifth board portion 630 connected to the third board portion 620, and the fifth board portion 630 may be connected to the driving substrate 110; the second circuit board 700 may further include a sixth board portion 730 connected to the fourth board portion 720, and the sixth board portion 730 may be connected to the light source substrate 220.

[0194] In some embodiments of this application, there are various ways to set the connection position between the first circuit board 600 and the display panel 100, and the connection position between the second circuit board 700 and the light source substrate 220.

[0195] Figure 33 This is a schematic diagram of the structure of a display module 10 provided in another embodiment of this application.

[0196] In some examples, such as Figure 33 As shown, the first circuit board 600 can be connected to the surface of the driving substrate 110 opposite to the light source substrate 220, and the second circuit board 700 can be connected to the surface of the light source substrate 220 opposite to the driving substrate 110, so that there can be a large gap between the first circuit board 600 and the second circuit board 700, which is beneficial to reduce the interference between the first circuit board 600 and the second circuit board 700 during the manufacturing process of the display module 10.

[0197] Figure 34 This is a schematic diagram of the structure of a display module 10 provided in another embodiment of this application.

[0198] In some examples, such as Figure 34 As shown, the first circuit board 600 can be connected to the surface of the driving substrate 110 near the light source substrate 220, so that when the first circuit board 600 is bent, the third plate portion 620 is less likely to collide with the driving substrate 110, which helps to reduce the bending radius of the first circuit board 600, thereby helping to reduce the bezel of the display module 10; the second circuit board 700 can be connected to the surface of the light source substrate 220 away from the driving substrate 110, so that when the second circuit board 700 is bent, the fourth plate portion 720 is less likely to collide with the light source substrate 220, which helps to reduce the bending radius of the second circuit board 700, thereby helping to reduce the bezel of the display module 10.

[0199] In some embodiments of this application, there are various ways to set the relative positional relationship between the first circuit board 600 and the second circuit board 700.

[0200] In some examples, such as Figure 33 and Figure 34 As shown, the first circuit board 600 and the second circuit board 700 may be arranged in an arrangement that overlaps at least partially, so as to arrange other device structures on the side of the light source substrate 220 away from the display panel 100.

[0201] Optionally, the first plate portion 610 may be located on the side of the second plate portion 710 away from the light source substrate 220. For example, in the first direction D1, the first plate portion 610 may at least partially overlap with the second plate portion 710.

[0202] Optionally, the third plate portion 620 may be located on the side of the fourth plate portion 720 away from the optical device 210. Exemplarily, in the second direction D2, the third plate portion may at least partially overlap with the fourth plate portion.

[0203] Optionally, in the second direction D2, the spacing between the third plate portion 620 and the fourth plate portion 720 can be 0-0.5 micrometers, so that the overlapping third plate portion 620 and the fourth plate portion 720 are not likely to have excessively large dimensions in the second direction D2, which is beneficial to reducing the bezel size of the display module 10.

[0204] Figure 35 This is a schematic diagram of the structure of a driving substrate 110, a light source substrate 220, a first circuit board 600 and a second circuit board 700 provided in an embodiment of this application.

[0205] In some examples, such as Figure 35 As shown, the first circuit board 600 and the second circuit board 700 can be staggered, which can facilitate the reduction of the thickness of the display module 10 and help reduce the interference between the first circuit board 600 and the second circuit board 700 during the manufacturing process of the display module 10.

[0206] For example, in the first direction D1, the first plate portion 610 may not overlap with the second plate portion 710; in the second direction D2, the third plate portion 620 may not overlap with the fourth plate portion 720; and in the first direction D1, the fifth plate portion 630 may not overlap with the sixth plate portion 730.

[0207] Optionally, the third plate portion 620 and the fourth plate portion 720 may be arranged along the third direction D3; the fifth plate portion 630 and the sixth plate portion 730 may be arranged along the third direction D3.

[0208] Figure 36 This is a schematic diagram of the structure of a driving substrate 110, a light source substrate 220, a first circuit board 600 and a second circuit board 700 provided in another embodiment of this application.

[0209] Optionally, in the second direction D2, the first circuit board 600 and the second circuit board 700 can be disposed on opposite sides of the light source substrate 220. That is, the first circuit board 600 and the second circuit board 700 can be bent from opposite sides of the light source substrate 220 in the second direction D2, which helps to reduce the bezel size of the display module 10 on one side in the second direction D2, and further helps to reduce the interference between the first circuit board 600 and the second circuit board 700 during the manufacturing process of the display module 10.

[0210] According to some embodiments of this application, this application also provides a display device, which includes the display module 10 in any of the foregoing embodiments.

[0211] Since the display device provided in this application includes the display module 10 in any of the foregoing embodiments, the display device provided in this application has the beneficial effects of the display module 10 in any of the foregoing embodiments, which will not be repeated here.

[0212] The display devices provided in this application embodiment may include, but are not limited to, in-vehicle displays, mobile phones, televisions, tablet computers, smartwatches, and other devices with display functions.

[0213] The above description is merely a specific implementation of this application. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, modules, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here. It should be understood that the protection scope of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the protection scope of this application.

Claims

1. A display module, characterized by include: Display panel; A backlight assembly is disposed on one side of the display panel in a first direction. The backlight assembly includes optical components, a light source substrate, and a light source. The light source substrate is located on at least one side of at least a portion of the optical components in a second direction. The light source is disposed on the side of the light source substrate facing away from the display panel. The first direction is perpendicular to the plane where the display panel is located, and the second direction is parallel to the plane where the light source substrate is located.

2. The display module according to claim 1, characterized in that, The optical device includes a light guide and a first auxiliary optical element disposed between the light guide and the display panel, wherein the light source is at least partially located on at least one side of the light guide in the second direction. The light source substrate is located on at least one side of the first auxiliary optical component in the second direction.

3. The display module according to claim 2, characterized in that, The display panel includes a driving substrate and a first polarizer disposed between the driving substrate and the first auxiliary optical element, wherein, in the first direction, the first polarizer does not overlap with the light source substrate.

4. The display module of claim 3, wherein, The display module further includes a first adhesive layer, which is disposed between the light source substrate and the display panel; The thickness of the first adhesive layer is equal to the thickness of the first polarizer.

5. The display module according to claim 4, characterized in that, The display module further includes a second adhesive layer, which is disposed between the first polarizer and the first auxiliary optical component; The sum of the thicknesses of the second adhesive layer and the first auxiliary optical component is equal to the thickness of the light source substrate.

6. The display module according to claim 2, characterized in that, The light guide includes a first light guide portion and a second light guide portion. In the first direction, the first light guide portion overlaps with the light source substrate, while the second light guide portion does not overlap with the light source substrate.

7. The display module according to claim 2, characterized in that, The backlight assembly further includes a second auxiliary optical component disposed between the light guide and the light source, the second auxiliary optical structure including at least one of a prism film and a light diffusion film.

8. The display module according to claim 1, characterized in that, The backlight assembly further includes a first reflector, which includes a first reflective portion and a second reflective portion connected to each other. The first reflective portion is located on the side of the light source away from the optical device, and the second reflective portion is located on the side of the light source away from the light source substrate.

9. The display module according to claim 8, characterized in that, The first reflector further includes a third reflector connected to the second reflector, and the third reflector is located on the side of the optical device away from the display panel.

10. The display module according to claim 8, characterized in that, The second reflective portion includes a first reflective portion and a second reflective portion connected to each other. The orthographic projection of the first reflective portion on the display panel overlaps with the orthographic projection of the light source on the display panel, while the orthographic projection of the second reflective portion on the display panel does not overlap with the orthographic projection of the light source on the display panel. The distance between the first reflective portion and the light source substrate is greater than the distance between the second reflective portion and the light source substrate.

11. The display module according to claim 10, characterized in that, The second reflective portion includes a first sub-portion located near the optical device in the first reflective portion, and the distance between the first sub-portion and the light source substrate gradually decreases along the direction from the first reflective portion to the optical device; and / or, the second reflective portion includes a second sub-portion located away from the optical device in the first reflective portion, and the distance between the second sub-portion and the light source substrate gradually decreases along the direction from the optical device to the first reflective portion.

12. The display module according to claim 8, characterized in that, The surface of the first reflector facing the light source substrate is curved.

13. The display module according to claim 8, characterized in that, The maximum distance between the first reflector and the light source substrate is not less than 120 micrometers and not more than 520 micrometers; and / or, the minimum distance between the first reflector and the light source is not less than 100 micrometers and not more than 500 micrometers.

14. The display module according to claim 8, characterized in that, The first reflector has a heat dissipation groove on the side facing away from the light source.

15. The display module according to claim 14, characterized in that, The second reflective portion includes a first reflective portion and a second reflective portion connected to each other. The orthographic projection of the first reflective portion on the display panel overlaps with the orthographic projection of the light source on the display panel, while the orthographic projection of the second reflective portion on the display panel does not overlap with the orthographic projection of the light source on the display panel. Both the first reflective portion and the second reflective portion are provided with heat dissipation grooves, and the depth of the heat dissipation groove in the first reflective portion is greater than the depth of the heat dissipation groove in the second reflective portion.

16. The display module according to claim 8, characterized in that, The backlight assembly also includes an adhesive material that fills the space between the first reflector and the light source substrate.

17. The display module according to claim 1, characterized in that, The display module further includes a first circuit board and a second circuit board, the first circuit board being connected to the display panel, and the second circuit board being connected to the light source substrate. The first circuit board includes a first board body portion, which is located on the side of the light source substrate away from the display panel in the first direction. The second circuit board includes a second board body portion, which is located on the side of the light source substrate away from the display panel in the first direction; The first plate portion is located on the side of the second plate portion away from the light source substrate.

18. The display module according to claim 17, characterized in that, The first circuit board includes a third board portion connected to the first board portion, and the second circuit board includes a fourth board portion connected to the second board portion. In the second direction, both the third board portion and the fourth board portion are located on the side of the light source substrate away from the optical device. In the second direction, the distance between the third plate portion and the fourth plate portion can be 0-0.5 micrometers.

19. The display module according to claim 1, characterized in that, The light source includes miniature light-emitting diodes, and there are multiple light sources arranged along a third direction. Adjacent light sources in the third direction are in contact with each other, and the first direction, the second direction, and the third direction intersect each other.

20. A display device, characterized in that, Includes the display module as described in any one of claims 1 to 19.

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