Display module, preparation method and display device

Abstract

The invention provides a display module, a manufacturing method and a display device, and the display module comprises a display panel which is provided with a display area and a non-display area surrounding the display area; the display area is provided with a light transmitting part penetrating through the display panel, and the non-display area is provided with a light supplementing part used for providing a light source; the polarizing layer and the shading layer are arranged on the same layer of the light emitting side of the display panel; the polarization layer covers the display area, and the side close to the light supplementing part extends to the non-display area; the light shielding layer is arranged in the non-display area and is in tight butt joint with the polarization layer in the non-display area; in the thickness direction of the display panel, at least part of orthographic projection of the shading layer surrounds orthographic projection of the light supplementing part so as to prevent light generated by the light supplementing part from entering the polarization layer. The light shielding layer in the non-display area can prevent the light of the light supplementing part from entering the polarization layer, and the display area and the periphery of the light transmitting part are prevented from optical interference, so that the display effect of the display module and the imaging quality of the front camera shooting unit are guaranteed.

Description

Technical Field

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

[0002] Some display modules have a front-facing fill light on the light-emitting side to provide supplementary lighting for the front-facing camera unit.

[0003] In related technologies, when the front-facing fill light of the display module is turned on, the light it generates passes through a polarizing layer disposed on the light-emitting side of its display panel. Because the polarizing layer has light-guiding properties, some light enters the polarizing layer and propagates to the light-transmitting area corresponding to the front-facing camera unit, forming a halo around the light-transmitting area, thereby affecting the display effect and image quality of the display module. Summary of the Invention

[0004] In view of this, the purpose of this application is to provide a display module, a manufacturing method and a display device to solve some or all of the technical problems mentioned above.

[0005] For the purposes described above, this application provides a display module, including: A display panel having a display area and a non-display area surrounding the display area; the display area having a light-transmitting portion penetrating the display panel, and the non-display area having a supplementary light portion for providing a light source; the display panel includes: A polarizing layer and a light-shielding layer are disposed on the same layer on the light-emitting side of the display panel; the polarizing layer covers the display area and extends to the non-display area on the side of the polarizing layer near the supplementary light part; The light-shielding layer is disposed in the non-display area and is tightly connected between the non-display area and the polarizing layer; along the thickness direction of the display panel, at least a portion of the orthographic projection of the light-shielding layer surrounds the orthographic projection of the fill light portion to block the light generated by the fill light portion from entering the polarizing layer.

[0006] Based on the same inventive concept, this application also provides a method for manufacturing a display module, including: A base plate is provided, an adhesive layer is formed on one side of the base plate, and a polarizing substrate and a light-shielding substrate are formed on the side of the adhesive layer away from the base plate, so that the two are disposed in the same layer; A transfer film is provided, which simultaneously covers the polarizing substrate and the light-shielding substrate on the side away from the base plate; A display panel is provided and the base plate is removed. The polarizing substrate and the light-shielding substrate are bonded to the light-emitting side of the display panel through the adhesive layer, so that the polarizing substrate covers the display area of ​​the display panel and the light-shielding substrate is located in the non-display area of ​​the display panel and covers the supplementary light part of the display panel. Remove the transfer film and cut the polarizing substrate and the light-shielding substrate to cut the polarizing substrate into a polarizing layer that matches the peripheral contour of the display panel, and cut the light-shielding substrate into a light-shielding layer so that the orthographic projection of the light-shielding layer in the thickness direction of the display panel does not coincide with the orthographic projection of the supplementary light portion. An optical adhesive layer and a protective layer are sequentially formed on the side of the polarizing layer and the light-shielding layer away from the display panel.

[0007] Based on the same inventive concept, this application also provides a display device, including the display module as described above.

[0008] As can be seen from the above, the display module, manufacturing method and display device provided in this application, by setting a polarizing layer and a light-shielding layer distributed in the same layer on the light-emitting side of the display panel, makes the light-shielding layer closely connected with the polarizing layer in the non-display area, and makes at least part of the light-shielding layer surround the supplementary light part, can block the light emitted from the supplementary light part from entering the polarizing layer, and prevent the light from entering the display panel through the side of the polarizing layer and causing optical interference to its display area and the periphery of the light-transmitting part, so as to ensure the display effect of the display module and the imaging quality of its front camera unit. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0010] Figure 1 This is a schematic diagram of the structure of a display module in the related technology from a first-view perspective; Figure 2 This is a schematic diagram of the display module in the related technology from a second perspective; Figure 3 This is a schematic diagram of the structure of the first display module in the embodiments of this application from a first perspective; Figure 4 This is a schematic diagram of the structure of the first display module in the embodiments of this application from a second perspective; Figure 5 This is a schematic diagram of the second type of display module in the embodiments of this application; Figure 6 This is a schematic diagram of the third type of display module in the embodiments of this application; Figure 7 This is a flowchart illustrating the manufacturing method of the display module in this application embodiment; Figure 8 This is a schematic diagram showing the positional relationship of the base plate, polarizing substrate, and light-shielding substrate in an embodiment of this application from a first viewing angle. Figure 9 This is a schematic diagram showing the positional relationship of the base plate, polarizing substrate, and light-shielding substrate in a second viewpoint in an embodiment of this application. Figure 10 This is a diagram showing the positional relationship between the transfer film, the polarizing substrate, and the light-shielding substrate in the embodiments of this application; Figure 11 This is a diagram showing the positional relationship between the display panel, the polarizing substrate, and the light-shielding substrate in the embodiments of this application; Figure 12 This is a schematic diagram showing the positional relationship between the polarizing substrate and the light-shielding substrate after cutting in an embodiment of this application. Detailed Implementation

[0011] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with specific embodiments and the accompanying drawings.

[0012] It should be noted that, unless otherwise defined, the technical or scientific terms used in the embodiments of this application should have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word covers the element or object listed after the word and its equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0013] For display modules, such as Figures 1-2As shown, the display module may include a display panel 1 and a polarizing layer 2 covering the light-emitting side of the display panel 1. During the display process, the light-emitting side of the display panel 1 is used to provide the display content, while the polarizing layer 2 is used to control the polarization direction of the light emitted from the display panel 1, enabling the display panel 1 to display images normally. With the increasing requirements for the display area AA ratio of the display panel 1, most display panels 1 adopt a punch-hole display panel 1, that is, a through hole is set in the display area AA of the display panel 1 to serve as a light-transmitting part 101, allowing external light to pass through the light-transmitting part 101 and enter the front-facing camera unit located inside the display module to realize the front-facing shooting function.

[0014] In addition, some display modules are equipped with front-facing fill lights on their light-emitting side, serving as fill light units 102 for the front-facing camera unit. This allows for fill light to the front-facing camera unit in low-light environments, improving image acquisition quality. Compared to the display area AA of the display module, the fill light used to provide the fill light source is relatively bright. When the front-facing fill light is lit, the emitted light passes through the polarizing layer 2 disposed on the light-emitting side of the display panel 1 and exits from the light-emitting side of the display panel 1, supplementing insufficient ambient light and thus improving image acquisition quality. The polarizing layer 2 controls the polarization direction of the light emitted from the display module, enabling the display panel 1 to display images correctly; this is the light-guiding characteristic of the polarizing layer 2. Therefore, when some of the light from the front fill light passes through the polarizing layer 2, some of the light passing through the polarizing layer 2 will enter the interior of the polarizing layer 2 and diffuse along the polarizing layer 2. This light can propagate to the periphery of the light-transmitting area corresponding to the light-transmitting part 101 of the front camera unit, resulting in an unexpected light diffusion phenomenon on the display panel 1 and forming a noticeable halo around the light-transmitting area. At this time, the halo formed around the light-transmitting area may interfere with the display uniformity of a local area of ​​the display panel 1 and may also cause stray light interference to the imaging of the front camera unit, thus adversely affecting both the overall display effect of the display module and the imaging quality of the front camera unit.

[0015] This application provides a display module to address the issue of halos formed around the light-transmitting area of ​​the camera unit due to light from the front-facing fill light being guided by the polarizing layer 2, thus affecting the display effect and imaging quality of the camera unit. This display module can be combined with... Figures 3-6 The content shown provides a detailed description of the display module.

[0016] A display module includes a display panel 1, a polarizing layer 2, and a light-shielding layer 3, specifically as follows: Figures 3-6As shown; the display panel 1 has a display area AA and a non-display area NA surrounding the display area AA; the display area AA is provided with a light-transmitting part 101 penetrating the display panel 1, and the non-display area NA is provided with a supplementary light part 102 for providing a light source; the polarizing layer 2 and the light-shielding layer 3 are disposed on the same layer on the light-emitting side of the display panel 1; the polarizing layer 2 covers the display area AA, and the side of the polarizing layer 2 near the supplementary light part 102 extends to the non-display area NA; the light-shielding layer 3 is disposed in the non-display area NA, and is tightly connected between the non-display area NA and the polarizing layer 2; along the thickness direction of the display panel 1, at least a portion of the orthographic projection of the light-shielding layer 3 surrounds the orthographic projection of the supplementary light part 102 to block the light generated by the supplementary light part 102 from entering the polarizing layer 2.

[0017] To facilitate the explanation of the placement and connection relationships of the various parts of the display module, the thickness, length, and width directions of the display panel 1 can be defined as direction x, direction y, and direction z, respectively. This will allow for a clear understanding of the specific composition and working principle of the display module in conjunction with the accompanying drawings.

[0018] like Figures 3-6 As shown, the display module provided in this application includes a display panel 1, a polarizing layer 2, and a light-shielding layer 3. The display panel 1 has a display area AA for image display and a non-display area NA surrounding the display area AA. The display area AA is responsible for displaying the image normally, while the non-display area NA does not participate in imaging and can be used as a wiring area and provided with encapsulation to prevent the display panel 1 from leaking light or being interfered with by environmental factors.

[0019] like Figure 3 , Figure 5 and Figure 6 As shown, the display panel 1 has a light-transmitting portion 101 extending through the display area AA. This light-transmitting portion 101 serves as a pathway for optical elements such as the front-facing camera unit to collect external light. When the front-facing camera unit inside the display module is activated for image acquisition, external light can directly enter the front-facing camera unit through the light-transmitting portion 101 to achieve image acquisition. Furthermore, a supplementary light portion 102 is provided in the non-display area NA of the display panel 1 to avoid excessive encroachment on the display area AA. The supplementary light portion 102 can act as a supplementary light source, providing additional illumination to the front-facing camera unit when ambient light is insufficient, enhancing its imaging quality under low-light conditions. This ensures both the display effect of the display module and improves the imaging performance of the front-facing camera unit.

[0020] To improve the display effect of the display module and reduce the impact of activating the supplementary light unit 102 on the display effect and imaging quality, the display module provided in this application further includes a polarizing layer 2 and a light-shielding layer 3 disposed on the light-emitting side of the display panel 1. For example... Figures 3-6As shown, specifically, the polarizing layer 2 covers the display area AA of the display panel 1 and is used to control the polarization direction of the emitted light in the display area AA to ensure the normal operation of the display function of the display panel 1.

[0021] Furthermore, such as Figure 3 , Figure 5 and Figure 6 As shown, the light-shielding layer 3 and the polarizing layer 2 are located on the same level on the light-emitting side of the display panel 1. Along the thickness direction of the display panel 1, the light-shielding layer 3 at least partially surrounds the orthographic projection of the supplementary light part 102, so that the light-shielding layer 3 forms a light-shielding structure around the supplementary light part 102 and blocks the light emitted by the supplementary light part 102 toward the polarizing layer 2 from entering the interior of the polarizing layer 2. In this way, the light-shielding layer 3 can isolate the polarizing layer 2 and the supplementary light part 102 in the non-display area NA. When the supplementary light part 102 is lit, the light it shines toward the polarizing layer 2 will be blocked by the light-shielding layer 3, preventing these lights from entering the interior of the polarizing layer 2 from the side, thereby avoiding interference with the display area AA of the display panel 1 and the surrounding area of ​​the light-transmitting part 101, preventing the formation of interference halos around the light-transmitting part 101, and thus ensuring the display effect and the imaging quality of the front camera unit.

[0022] See Figure 3 , Figure 5 and Figure 6 The light-shielding layer 3 is disposed within the non-display area NA and closely connected to the polarizing layer 2, so that the two form a seamless splicing at the splicing boundary to construct a complete optical boundary, improving the integrity and surface flatness of the film layer, thereby ensuring the display effect of the display module and its anti-interference capability against the supplementary light source. In addition, the polarizing layer 2 not only covers the display area AA of the display panel 1, but its side near the supplementary light part 102 can also be connected to the light-shielding layer 3 after extending to the non-display area NA. In this way, when constructing the polarizing layer 2 and the light-shielding layer 3 on the light-emitting side of the display panel 1, the process difficulty and precision requirements of the two on the light-emitting side of the display panel 1 can be reduced, and the light-shielding layer 3 is prevented from blocking or encroaching on the display area AA of the display panel 1, thus ensuring the display effect of the display module and improving the overall manufacturing efficiency and reliability.

[0023] Furthermore, the light-shielding layer 3 can be the same color as the non-display area NA where it is located, such as black, so that it has good light absorption and light-shielding properties, while the non-display area NA can cover the light-shielding layer 3 to maintain the exquisite appearance of the display panel 1.

[0024] In summary, by arranging a light-shielding layer 3 and a polarizing layer 2 within the same layer, and ensuring that the light-shielding layer 3 at least partially surrounds the supplementary light portion 102, this display module can block the light emitted from the supplementary light portion 102 from entering the polarizing layer 2. This prevents the light from causing optical interference such as halos around the display area AA and the light-transmitting portion 101 of the display panel 1, thus ensuring the display effect of the display module and the imaging quality of the front-facing camera unit. The seamless connection between the light-shielding layer 3 and the polarizing layer 2 within the non-display area NA improves the integrity and surface flatness of the film layers, enhancing the anti-interference capability of the display panel 1 against the supplementary light source. Furthermore, extending the polarizing layer 2 to the non-display area NA and connecting it with the light-shielding layer 3 reduces the manufacturing process difficulty and precision requirements, while avoiding unnecessary obstruction or encroachment of the display area AA by the light-shielding layer 3, thereby improving the manufacturing efficiency and reliability of the display panel 1.

[0025] In some embodiments, the thickness of the light-shielding layer 3 is equal to the thickness of the polarizing layer 2 along the thickness direction of the display panel 1.

[0026] To improve the overall flatness of the display panel 1, for the light-shielding layer 3 and the polarizing layer 2, such as Figure 4 As shown, the polarizing layer 2 and the light-shielding layer 3 are disposed on the same layer on the light-emitting side of the display panel 1. Therefore, along the thickness direction of the display panel 1, the thickness of the light-shielding layer 3 can be equal to the thickness of the polarizing layer 2, so that the light-shielding layer 3 and the polarizing layer 2 are at the same plane height on the light-emitting side of the display panel 1, so as to form a flat and continuous optical film surface. This is beneficial to the uniform coating or bonding of other functional film layers in subsequent processes, and can also avoid problems such as stress concentration or interface reflection caused by differences in film height.

[0027] In addition, since the edge of the polarizing layer 2 and the edge of the light-shielding layer 3 are closely connected in the non-display area NA, setting the light-shielding layer 3 and the polarizing layer 2 to the same thickness can ensure that there are no steps or gaps at the splicing boundary between the two, so that the two can achieve a smooth transition in the non-display area NA, and ensure the integrity of the layer where the polarizing layer 2 and the light-shielding layer 3 are located.

[0028] In some embodiments, the light-shielding layer 3 is elongated and extends along the width direction of the display panel 1; along the thickness direction of the display panel 1, the orthographic projection of the light-transmitting portion 101 and the orthographic projection of the supplementary light portion 102 are located on opposite sides of the orthographic projection of the light-shielding layer 3.

[0029] like Figure 3 , Figure 5 and Figure 6As shown, the light-shielding layer 3 is elongated and can extend along the width direction of the display panel 1, forming a continuous and directional light-shielding structure within the non-display area NA. The elongated light-shielding layer 3 can block the light-enhancing part 102 and the light-transmitting part 101 within a limited space, preventing the light emitted by the light-enhancing part 102 from entering the polarizing layer 2. At the same time, the elongated light-shielding layer 3 can reduce the interference of the light-shielding layer 3 on the light-enhancing part 102, ensuring the light output of the light-enhancing part 102 and thus ensuring the light-enhancing effect of the light-enhancing part 102.

[0030] Furthermore, such as Figure 3 , Figure 5 and Figure 6 As shown, along the thickness direction of the display panel 1, the orthographic projection of the light-transmitting part 101 and the orthographic projection of the supplementary light part 102 are located on opposite sides of the orthographic projection of the light-shielding layer 3, so that the light-shielding layer 3 is located between the light-transmitting part 101 and the supplementary light part 102 in the non-display area NA, and the formed light-shielding structure acts as an optical barrier to limit the light emitted by the supplementary light part 102 to its side, prevent the light from being transmitted through the polarizing layer 2 to the area where the light-transmitting part 101 is located, and avoid the supplementary light part 102 causing optical interference to the display area AA around the light-transmitting part 101.

[0031] In some embodiments, the light-shielding layer 3 has a light-transmitting hole 301 corresponding to the light-transmitting part 101, and the orthogonal projection of the light-transmitting hole 301 in the thickness direction of the display panel 1 covers the orthogonal projection of the supplementary light part 102.

[0032] To prevent the light generated by the supplementary light unit 102 from being transmitted to the polarizing layer 2 and affecting the display area AA, such as Figure 6 As shown, the light-shielding layer 3 has a light-transmitting hole 301 corresponding to the light-transmitting part 101. The orthographic projection of the light-transmitting hole 301 along the thickness direction of the display panel 1 covers the orthographic projection of the light-transmitting part 101. On the one hand, the light generated by the supplementary light part 102 when it is lit can be emitted through the light-transmitting hole 301, thereby effectively providing a supplementary light source. On the other hand, the sidewall of the light-transmitting hole 301 can block the light that shines on its inner sidewall. At the same time, the polarizing layer 2 and the supplementary light part 102 are optically isolated by the light-shielding layer 3. In this way, even if the light generated by the supplementary light part 102 passes through the light-transmitting hole 301, the light generated by it will not be transmitted into the polarizing layer 2, thereby effectively preventing the supplementary light part 102 from causing optical interference to the display panel 1 and the light-transmitting part 101.

[0033] In some embodiments, along the length of the display panel 1, the polarizing layer 2 extends toward the side near the supplementary light portion 102, and the width of the non-display area NA ranges from 0.3 to 0.5 mm.

[0034] Specifically, along the length of the display panel 1, the polarizing layer 2 extends into the non-display area NA towards the side near the supplementary light part 102, so that it can fully cover the display area AA; and the width of the extension portion of the polarizing layer 2 in the non-display area NA is set to 0.3-0.5 mm, so as to ensure that the polarizing layer 2 and the light-shielding layer 3 can be fully aligned in the non-display area NA.

[0035] Specifically, the portion of polarizing layer 2 extending into the non-display area NA is used to align with light-shielding layer 3, forming a continuous and gapless splicing boundary between light-shielding layer 3 and polarizing layer 2. The light-shielding layer 3, located near the supplementary light section 102, blocks and absorbs the light generated by the supplementary light section 102. If the extension width of polarizing layer 2 within the non-display area NA is less than 0.3 mm, it is difficult to ensure the tightness and reliability of the alignment between polarizing layer 2 and light-shielding layer 3, increasing the risk of optical isolation failure or causing light-shielding layer 3 to affect the display effect at the edge of display area AA. If the extension width of polarizing layer 2 within the non-display area NA is too large, it increases the material required to form light-shielding layer 3, increasing the process complexity. Therefore, by limiting the extension width of polarizing layer 2 within the non-display area NA to the range of 0.3-0.5 mm, it is possible to ensure the complete control capability of polarizing layer 2 over the light emitted from display area AA, while also meeting the process tolerance requirements for alignment and bonding of polarizing layer 2 and light-shielding layer 3 within the non-display area NA.

[0036] In some embodiments, the light-shielding layer 3 is formed of black tape or black adhesive.

[0037] The light-shielding layer 3 is disposed in the non-display area NA, and its main function is to block the light emitted by the supplementary light unit 102 from diffusing toward the polarizing layer 2, thus preventing this light from adversely affecting the display effect of the display module or the imaging quality of the front camera unit. Therefore, the light-shielding layer 3 can be formed using black tape or black glue. When using black tape as the light-shielding layer 3, the black tape has good light-shielding performance, mechanical strength, and adhesion stability, making it easy to accurately adhere to the non-display area NA of the display panel 1. When using black glue to form the light-shielding layer 3, it can be formed by coating, dispensing, or printing, which has a higher degree of design freedom and contour adaptability, making it suitable for non-display areas NA with complex structures or limited space.

[0038] Furthermore, both black tape and black adhesive have the advantages of low cost and wide availability, which can meet the needs of display modules in terms of cost control, process compatibility, and optical performance. Therefore, the specific material of the light-shielding layer 3 can be flexibly selected according to product design requirements and manufacturing conditions to achieve reliable optical isolation function.

[0039] In some embodiments, the polarizing layer 2 protrudes on the side away from the display area AA to form a first positioning portion 201, and the light-shielding layer 3 is recessed on the side near the display area AA to form a second positioning portion 202 that is adapted to the first positioning portion 201. The first positioning portion 201 is embedded in the second positioning portion 202 in the non-display area NA.

[0040] like Figure 5 As shown, to improve the alignment accuracy and splicing reliability of the polarizing layer 2 and the light-shielding layer 3 in the non-display area NA, the display module can be provided with a mutually cooperating positioning structure at the mating boundary between the polarizing layer 2 and the light-shielding layer 3. Specifically, the positioning structure can include a first positioning part 201 and a second positioning part 202. The first positioning part 201 can be formed by protruding on the side of the polarizing layer 2 away from the display area AA, and the second positioning part 202 can be formed by recessing on the side of the light-shielding layer 3 close to the display area AA. The second positioning part 202 is adapted to the first positioning part 201. In this way, when assembling the light-shielding layer 3 and the polarizing layer 2, the first positioning part 201 of the polarizing layer can be embedded in the second positioning part 202 of the light-shielding layer 3, which can ensure the accurate alignment and stable bonding of the polarizing layer 2 and the light-shielding layer 3 in the non-display area NA, thereby improving the tightness of the mating between the two.

[0041] Furthermore, by employing a first positioning part 201 and a second positioning part 202 that are adapted to each other, this application can also limit the relative slippage or misalignment of the polarizing layer 2 and the light-shielding layer 3 in the plane, thereby improving the stability of the film layer splicing. At the same time, this positioning structure can eliminate gaps or steps at the interface between the two, ensuring the continuity and flatness of the optical boundary, thereby reducing the dependence on the precision of the bonding process and improving production yield and assembly efficiency.

[0042] For example, the first positioning part 201 provided at the edge of the polarizing layer 2 can be a positioning protrusion. This design is beneficial for accurately controlling the extension width of the polarizing layer 2 in the non-display area NA. Correspondingly, the second positioning part 202 provided at the light-shielding layer 3 can be a positioning groove. The positioning groove can be arranged in an area away from the supplementary light part 102. This design can not only reduce the impact of the positioning groove on the light-shielding function of the light-shielding layer 3, but also ensure that the light-shielding layer 3 effectively blocks the supplementary light part 102. This allows the light-shielding layer 3 to optically isolate the supplementary light part 102 without affecting the light emission effect at the edge of the display area AA of the display panel 1.

[0043] In some embodiments, the display module further includes a stacked optical adhesive layer 4 and a protective layer 5, a polarizing layer 2 and a light-shielding layer 3 forming a composite film layer, and the optical adhesive layer 4 is located between the protective layer 5 and the composite film layer; along the thickness direction of the display panel 1, the orthographic projection of the optical adhesive layer 4 covers the orthographic projection of the polarizing layer 2 and the orthographic projection of the light-shielding layer 3 respectively, and the orthographic projection of the protective layer 5 covers the orthographic projection of the optical adhesive layer 4.

[0044] To improve the structural stability and external protection capabilities of the display module, such as Figure 4 As shown, the display module further includes an optical adhesive layer 4 and a protective layer 5 stacked sequentially on the light-emitting side of the display panel 1. Specifically, the optical adhesive layer 4 is located between the protective layer 5 and the polarizing layer 2 and the light-shielding layer 3. Along the thickness direction of the display panel 1, the orthographic projection of the optical adhesive layer 4 covers the orthographic projection of the polarizing layer 2 and the light-shielding layer 3, respectively, ensuring that the optical adhesive layer 4 can fully cover the upper surfaces of the polarizing layer 2 and the light-shielding layer 3, and firmly connect the two with the protective layer 5 above them, enhancing the bonding strength between the film layers and preventing delamination or peeling during use. In addition, the film layer formed by the optical adhesive layer 4 can also serve as an optical compensation layer, reducing the scattering of light in the propagation path, thereby improving the overall light transmittance and display uniformity.

[0045] Furthermore, the orthographic projection of the protective layer 5 covers the orthographic projection of the optical adhesive layer 4, meaning that the protective layer 5, as the outermost functional layer of the display module, can cover the optical adhesive layer 4. The protective layer 5 can be made of a transparent material with high light transmittance and high hardness, such as a hardened coating, a transparent resin film, or a glass cover, which can resist physical damage such as scratches, contamination, and impacts from the external environment, while maintaining good optical transmittance performance to ensure that the display content of the display module is clearly visible and to protect the optical path of the front-facing camera unit from interference.

[0046] Based on the same inventive concept, this application provides a method for manufacturing a display module, such as... Figures 7-12 As shown, the manufacturing method includes: S100: Provides a base plate BOT, forms an adhesive layer on one side of the base plate BOT, and forms closely mated polarizing substrate POL and light-shielding substrate MAL on the side of the adhesive layer away from the base plate BOT, so that the two are set in the same layer. In this step, a base plate BOT is provided, which can be used as a temporary support platform. An optical adhesive layer 4 is formed on one side of the base plate BOT using optical adhesive, and the polarizing substrate POL and the light-shielding substrate MAL are pre-arranged on the adhesive layer so that their opposite edges are tightly joined, ensuring that they form a continuous and gapless composite film layer in the same plane, so that the polarizing substrate POL and the light-shielding substrate MAL can be transferred as a whole in the subsequent process.

[0047] For example, the base plate BOT can be formed of materials such as glass or metal, which can provide a highly flat surface and can be used as a temporary bearing platform to provide support, which will not be elaborated here.

[0048] S200: Provides a transfer film TRA, which simultaneously covers the polarizing substrate POL and the light-shielding substrate MAL on the side away from the base plate BOT. In this step, the provided transfer film TRA can serve as a temporary support or protective structure covering the side of the polarizing substrate POL and the light-shielding substrate MAL away from the base plate BOT, preventing film warping, misalignment, or separation during the transfer to the display panel 1, thereby ensuring that the polarizing substrate POL and the light-shielding substrate MAL maintain a tight, continuous, and gapless connection at the docking boundary.

[0049] For example, the transfer film TRA can be made of a transparent polymer film, a peelable adhesive film, or other materials suitable for optical device transfer processes, in order to balance support strength and subsequent ease of removal, which will not be elaborated here.

[0050] S300: Provides a display panel 1 and removes the base plate BOT. The polarizing substrate POL and the light-shielding substrate MAL are bonded to the light-emitting side of the display panel 1 by an adhesive layer, so that the polarizing substrate POL covers the display area AA of the display panel 1, and the light-shielding substrate MAL is located in the non-display area NA of the display panel 1 and covers the supplementary light part 102 of the display panel 1. In this step, the base plate BOT can be peeled off from the adhesive layer so that the base plate BOT is separated from the lower surface of the polarizing substrate POL and the light-shielding substrate MAL; the composite film layer is precisely attached to the light-emitting side of the display panel 1 through the adhesive layer so that the attached polarizing substrate POL can cover the display area AA to control the polarization state of the display light; the light-shielding substrate MAL is correspondingly arranged in the non-display area NA and at least partially covers the location of the supplementary light part 102 so as to form a light-shielding layer 3 for blocking the light from the supplementary light part 102 in the future.

[0051] S400: Remove the transfer film TRA and cut the polarizing substrate POL and the light-shielding substrate MAL to cut the polarizing substrate POL into a polarizing layer 2 that matches the peripheral contour of the display panel 1, and cut the light-shielding substrate MAL into a light-shielding layer 3 so that the orthographic projection of the light-shielding layer 3 in the thickness direction of the display panel 1 does not coincide with the orthographic projection of the supplementary light part 102. In this step, the transfer film TRA can be peeled off from the surface of the polarizing substrate POL and the light-shielding substrate MAL. Using a laser cutting process, the polarizing substrate POL is precisely cut according to the actual shape and functional area of ​​the display panel 1 to cut the polarizing layer 2 that matches the contour of the display panel 1, ensuring that the display area AA is completely covered without encroaching on the non-display area NA. The light-shielding substrate MAL is cut into a light-shielding layer 3 so that the shape and position of the light-shielding layer 3 are adapted to the light-filling part 102, so that its orthogonal projection in the thickness direction of the display panel 1 avoids the orthogonal projection of the light-filling part 102, and is at least partially located at the periphery of the light-filling part 102, ensuring that the light-shielding layer 3 does not obstruct the emission of the light-filling light and can block the light generated by the light-filling part 102 from diffusing laterally to the polarizing layer 2.

[0052] S500: An optical adhesive layer 4 and a protective layer 5 are sequentially formed on the side of the polarizing layer 2 and the light-shielding layer 3 away from the display panel 1.

[0053] In this step, an optical adhesive layer 4 and a protective layer 5 can be sequentially formed on top of the polarizing layer 2 and the light-shielding layer 3, which have been positioned and cut. Along the thickness direction of the display panel 1, the orthographic projection of the optical adhesive layer 4 covers the orthographic projection of the polarizing layer 2 and the light-shielding layer 3, respectively, and the orthographic projection of the protective layer 5 covers the orthographic projection of the optical adhesive layer 4. The optical adhesive layer 4 enhances the adhesion between film layers and improves the optical transmittance of the display panel 1. The protective layer 5 provides the surface of the display panel 1 with scratch resistance, anti-fouling, and mechanical protection functions, so that the display panel 1 has high light transmittance and ensures that the display and imaging functions are not affected.

[0054] Based on the same inventive concept, including the display module described in any of the above embodiments; specifically, since the display device provided in this application uses the display module described above, it has all the advantages and beneficial effects of the display module; for example, the display device provided in this application can be a mobile phone, computer, self-service kiosks, video screens and vehicle displays with interactive display functions, etc., which will not be described in detail here.

[0055] It should be noted that the above description describes some embodiments of this application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in a different order than that shown in the above embodiments and still achieve the desired result. Furthermore, the processes depicted in the drawings do not necessarily require a specific or sequential order to achieve the desired result. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0056] The various embodiments in this application are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0057] The description in this application is given for illustrative purposes and is not intended to be exhaustive or to limit the application to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of this application and to enable those skilled in the art to understand this application and design various embodiments with various modifications suitable for a particular purpose.

[0058] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of this application (including the claims) is limited to these examples; within the framework of this application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of the embodiments of this application as described above, which are not provided in the details for the sake of brevity.

[0059] Although this application has been described in conjunction with specific embodiments thereof, many substitutions, modifications and variations of these embodiments will be apparent to those skilled in the art from the foregoing description.

[0060] The embodiments of this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the embodiments of this application should be included within the protection scope of this application.

Claims

1. A display module, characterized in that, include: A display panel having a display area and a non-display area surrounding the display area; The display area is provided with a light-transmitting part that penetrates the display panel, and the non-display area is provided with a supplementary light part for providing a light source; A polarizing layer and a light-shielding layer are disposed on the same layer on the light-emitting side of the display panel; the polarizing layer covers the display area and extends to the non-display area on the side of the polarizing layer near the supplementary light part; The light-shielding layer is disposed in the non-display area and is tightly connected between the non-display area and the polarizing layer; Along the thickness direction of the display panel, at least a portion of the orthographic projection of the light-shielding layer surrounds the orthographic projection of the light-filling portion, so as to block the light generated by the light-filling portion from entering the polarizing layer.

2. The display module according to claim 1, characterized in that, Along the thickness direction of the display panel, the thickness of the light-shielding layer is equal to the thickness of the polarizing layer.

3. The display module according to claim 1, characterized in that, The light-shielding layer is elongated and extends along the width of the display panel; Along the thickness direction of the display panel, the orthographic projection of the light-transmitting part and the orthographic projection of the supplementary light part are located on opposite sides of the orthographic projection of the light-shielding layer.

4. The display module according to claim 1, characterized in that, The light-shielding layer has light-transmitting holes corresponding to the light-transmitting part, and the orthogonal projection of the light-transmitting holes in the thickness direction of the display panel covers the orthogonal projection of the supplementary light part.

5. The display module according to claim 1, characterized in that, Along the length of the display panel, the polarizing layer extends toward the side closer to the fill light portion, and its width in the non-display area ranges from 0.3 to 0.5 millimeters.

6. The display module according to claim 1, characterized in that, The light-shielding layer is formed by black tape or black glue.

7. The display module according to claim 1, characterized in that, The polarizing layer protrudes on the side away from the display area to form a first positioning portion, and the light-shielding layer is recessed on the side close to the display area to form a second positioning portion that matches the first positioning portion. The first positioning portion is embedded in the second positioning portion in the non-display area.

8. The display module according to claim 1, characterized in that, Also includes: Layered optical adhesive and protective layers; Along the thickness direction of the display panel, the orthographic projection of the optical adhesive layer covers the orthographic projection of the polarizing layer and the orthographic projection of the light-shielding layer, respectively, and the orthographic projection of the protective layer covers the orthographic projection of the optical adhesive layer.

9. A method for manufacturing a display module, characterized in that, include: A base plate is provided, an adhesive layer is formed on one side of the base plate, and a polarizing substrate and a light-shielding substrate are formed on the side of the adhesive layer away from the base plate, so that the two are disposed in the same layer; A transfer film is provided, which simultaneously covers the polarizing substrate and the light-shielding substrate on the side away from the base plate; A display panel is provided and the base plate is removed. The polarizing substrate and the light-shielding substrate are bonded to the light-emitting side of the display panel through the adhesive layer, so that the polarizing substrate covers the display area of ​​the display panel and the light-shielding substrate is located in the non-display area of ​​the display panel and covers the supplementary light part of the display panel. Remove the transfer film and cut the polarizing substrate and the light-shielding substrate to cut the polarizing substrate into a polarizing layer that matches the peripheral contour of the display panel, and cut the light-shielding substrate into a light-shielding layer so that the orthographic projection of the light-shielding layer in the thickness direction of the display panel does not coincide with the orthographic projection of the supplementary light portion. An optical adhesive layer and a protective layer are sequentially formed on the side of the polarizing layer and the light-shielding layer away from the display panel.

10. A display device, characterized in that, Includes the display module as described in any one of claims 1-8.

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