DISPLAY AND ELECTRONIC DEVICE ASSEMBLY

Abstract

The invention relates to a display assembly, an electronic device, and a method for fabricating a display assembly. In the display assembly, a light-diffusing layer is positioned between the substrate and the light-source layer. A hole is created in the light-diffusing layer. The illuminated region of the light-emitting layer on the light-diffusing layer covers the hole, and the illuminated region of the interface between the non-luminous and luminous layers on the light-diffusing layer is positioned outside the hole. In this way, the ripple pattern beneath the screen is effectively reduced or prevented, thus improving the accuracy of fingerprint recognition, thereby significantly improving usability and user experience.

Description

Electronic device, display assembly and manufacturing method thereof

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on May 31, 2021, with application number 202110605538.5 and application name “Electronic device, display assembly and manufacturing method thereof”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The embodiments of the present application relate to the field of terminal technology, and in particular to an electronic device, a display component, and a manufacturing method thereof. Background Art

[0003] With the continuous upgrade of electronic products, touchscreen smartphones, watches, and other electronic products have prompted manufacturers to launch differentiated products to attract consumers. One of the current highlights in the market is electronic products with under-screen fingerprint recognition. Under-screen fingerprint recognition solutions generally include optical fingerprint recognition and ultrasonic fingerprint recognition. Optical fingerprint recognition has higher accuracy, smaller device size, and more mature and stable performance, making it popular in the market.

[0004] The existing optical fingerprint recognition solution generally installs an optical fingerprint module under the display of an electronic product. The optical fingerprint module includes a sensor and a lens, where the lens is located between the sensor and the display. Based on the principle of lens imaging, the light source of the optical fingerprint module generally comes from the light-emitting unit inside the display. Moreover, displays are becoming increasingly thin and light. When a finger touches the top surface of the display, the difference between the distance between the fingerprint and the lens and the distance between the light-emitting unit and the lens is small, making it easy for the optical fingerprint module to focus on the light-emitting unit of the display. Because the spatial frequency of the light-emitting unit in optical fingerprint imaging is close to that of the sensor's photosensitive pixels, a moiré phenomenon of alternating bright and dark colors will be formed.

[0005] However, when the width of the moiré pattern is similar to the width of the finger, it is easy to cause the problem of reduced fingerprint recognition accuracy, which will greatly affect the user's performance and experience.

[0006] Summary of the Invention

[0007] The embodiments of the present application provide an electronic device, a display component, and a manufacturing method thereof, which effectively reduce or avoid the phenomenon of under-screen moiré, improve the accuracy of fingerprint recognition, and thus greatly improve the user's performance and experience.

[0008] In a first aspect, an embodiment of the present application provides a display component, which is applied to an electronic device with a fingerprint recognition function, and includes at least: a base layer, a light source layer, and a light scattering layer located between the base layer and the light source layer; the light source layer includes a light-emitting layer and a non-light-emitting layer located on both sides of the light-emitting layer; the light-scattering layer has an opening, the projection area of ​​the light-emitting layer on the light-scattering layer covers the opening, and the projection area of ​​the connection area between the non-light-emitting layer and the light-emitting layer on the light-scattering layer is located outside the opening.

[0009] The display component provided by the embodiment of the present application is configured by arranging a light scattering layer between the base layer and the light source layer, wherein the light scattering layer has an opening, the projection area of ​​the light emitting layer on the light scattering layer covers the opening, and the projection area of ​​the connection area between the non-light emitting layer and the light emitting layer on the light scattering layer is located outside the opening. Based on the principle of light scattering, when the light from the light emitting layer toward the side of the base layer is emitted from the edge of the opening, it will be diffusely reflected in the light scattering layer to form divergent light in different directions. In this way, the light scattering layer blurs the divergent light, and the image collected by the optical recognition component does not have obvious "graininess" but presents evenly distributed bright spots, thereby avoiding optical spatial interference, effectively reducing or avoiding the occurrence of optical fingerprint moiré, improving the accuracy of fingerprint recognition, and thus greatly improving the user's usage performance and experience.

[0010] In one possible implementation, the light-scattering layer includes a transparent matrix and light-scattering particles distributed within the transparent matrix. The light-scattering particles have a higher refractive index than the transparent matrix. Thus, the transparent matrix encapsulated with the light-scattering particles forms a light-scattering layer that scatters outgoing light.

[0011] In a possible implementation, the diameter of the light scattering particles is 10-100 nm. Nanoscale light scattering particles are distributed in the transparent matrix, which can improve the uniformity of the light scattering layer and thus improve the scattering effect of the light scattering layer.

[0012] In one possible implementation, the light scattering layer includes: at least one group of a first light scattering layer and a second light scattering layer stacked together; the first light scattering layer has a plurality of first protrusions on a side close to the second light scattering layer, and a first groove is formed between two adjacent first protrusions; the second light scattering layer has a plurality of second protrusions on a side close to the first light scattering layer that are adapted to the first grooves, and a second groove is formed between two adjacent second protrusions, and the second groove is adapted to the first protrusions; and the refractive index of the first light scattering layer is different from the refractive index of the second light scattering layer.

[0013] In this way, the first light scattering layer and the second light scattering layer form a hierarchical structure with alternating high and low refractive indices. Light can be refracted on the concave-convex surface of the first light scattering layer and the second light scattering layer, thereby changing the propagation direction of light and achieving the effect of light astigmatism.

[0014] In one possible implementation, at least some of the plurality of first protrusions have different shapes or sizes, and at least some of the plurality of second protrusions have different shapes or sizes. This allows the concave-convex surfaces of the first and second light scattering layers to have irregular shapes, further enhancing the light scattering effect of the light scattering layers.

[0015] In one possible implementation, the light source layer includes multiple light-emitting layers and multiple non-light-emitting layers, and the light-emitting layers are spaced apart from the non-light-emitting layers; the light-scattering layer includes multiple sub-scattering layers, and the projection areas of the multiple sub-scattering layers on the light source layer completely cover the multiple non-light-emitting layers, and the projection areas of the multiple sub-scattering layers on the light source layer cover the parts of the multiple light-emitting layers adjacent to the multiple non-light-emitting layers.

[0016] In a possible implementation, the light-emitting layer and the non-light-emitting layer are spaced apart in the first direction; a width in the first direction of a projection area of ​​each of the sub-scattering layers on each of the light-emitting layers is greater than one-fifth of a width of each of the light-emitting layers in the first direction, and a width in the first direction of a projection area of ​​each of the sub-scattering layers on each of the light-emitting layers is less than four-fifths of a width of each of the light-emitting layers in the first direction.

[0017] In a possible implementation, the light-emitting layer and the non-light-emitting layer are spaced apart in the second direction; a width in the second direction of a projection area of ​​each of the sub-scattering layers on each of the light-emitting layers is greater than one-fifth of a width of each of the light-emitting layers in the second direction, and a width in the second direction of a projection area of ​​each of the sub-scattering layers on each of the light-emitting layers is less than four-fifths of a width of each of the light-emitting layers in the second direction; wherein the second direction is perpendicular to the first direction.

[0018] In a possible implementation, the system further includes: an intermediate layer; the intermediate layer is located between the base layer and the light source layer; a portion of the intermediate layer is located between the light source layer and the light scattering layer, and another portion of the intermediate layer is located in the opening.

[0019] In one possible implementation, the intermediate layer includes at least one flat layer, a portion of which is located between the light source layer and the light scattering layer, and another portion of which is located within the opening. The flat layer can smoothen the surface of the light scattering layer.

[0020] In one possible implementation, the intermediate layer includes at least two planar layers and at least one passivation layer; the passivation layer is located between two adjacent planar layers; one of the at least two planar layers is located between the light source layer and the planar layer, a portion of the other of the at least two planar layers is located between the passivation layer and the light scattering layer, and another portion of the other of the at least two planar layers is located within the opening. The passivation layer can provide thermal insulation and prevent isolator erosion.

[0021] In one possible implementation, the intermediate layer includes a first flat layer, a second flat layer, and a passivation layer located between the first and second flat layers. A portion of the first flat layer is located between the passivation layer and the light scattering layer, while another portion of the first flat layer is located within the opening. The second flat layer is located between the light source layer and the passivation layer, and contains at least one transistor, which is in contact with the passivation layer. The first flat layer smoothes the surface of the light scattering layer, while the second flat layer smoothes the surface of the passivation layer, thereby preventing adverse effects on the transistor caused by uneven height and poor flatness.

[0022] In one possible implementation, the device further includes an encapsulation layer, wherein the light source layer is located between the encapsulation layer and the second flat layer. The encapsulation layer can protect the light source layer from external conditions, thereby preventing damage to the performance of the display assembly.

[0023] In one possible implementation, the bottom surface of the non-luminescent layer is flush with the bottom surface of the luminescent layer, and the top surface of the non-luminescent layer is higher than the top surface of the luminescent layer. Furthermore, the end of the non-luminescent layer near the luminescent layer has an inclined portion, and the thickness of the inclined portion gradually decreases from the end away from the luminescent layer to the end near the luminescent layer. This increases the angle of emission of light from the luminescent layer toward the encapsulation layer, thereby increasing the emission range of the emitted light.

[0024] In one possible implementation, the thickness of the light scattering layer is 20-100 nm, which can reduce the thickness of the display assembly to a certain extent, thereby facilitating a thinner and lighter display assembly, and further facilitating a thinner and lighter electronic device having the display assembly.

[0025] A second aspect of an embodiment of the present application provides an electronic device, which includes at least: a middle frame, an optical recognition component, and any of the above-mentioned display components; the optical recognition component is located between the display component and the middle frame.

[0026] An electronic device provided in an embodiment of the present application comprises at least a display component, wherein a light scattering layer is arranged between a base layer and a light source layer, the light scattering layer having an opening, a projection area of ​​the light emitting layer on the light scattering layer covering the opening, and a projection area of ​​the connection area between the non-light emitting layer and the light emitting layer on the light scattering layer being located outside the opening. Based on the principle of light scattering, when light from the light emitting layer toward the side of the base layer is emitted from the edge of the opening, diffuse reflection occurs in the light scattering layer to form divergent light of different directions. In this way, the light scattering layer blurs the divergent light, and the image captured by the optical recognition component does not have obvious "graininess" but is a uniformly distributed bright spot, thereby avoiding optical spatial interference, effectively reducing or avoiding the occurrence of optical fingerprint moiré, improving the accuracy of fingerprint recognition, and thereby greatly improving the user's usage performance and experience.

[0027] In one possible implementation, the optical recognition component includes: a lens and a sensor; the lens is located between the display component and the sensor; the display component has a fingerprint detection area, and the projection area of ​​the fingerprint detection area on the middle frame at least partially overlaps with the projection area of ​​the lens on the middle frame.

[0028] A third aspect of an embodiment of the present application provides a method for manufacturing a display component, the method comprising at least: providing a base layer; forming a light scattering layer on the base layer; setting an opening on the light scattering layer; and forming a light source layer above the light scattering layer; wherein the light source layer comprises a light-emitting layer and non-light-emitting layers located on both sides of the light-emitting layer, the projection area of ​​the light-emitting layer on the light scattering layer covers the opening, and the projection area of ​​the connection area between the non-light-emitting layer and the light-emitting layer on the light scattering layer is located outside the opening.

[0029] The manufacturing method of the display component provided in the embodiment of the present application is as follows: the method forms a light scattering layer on a base layer, sets an opening on the light scattering layer, and forms a light source layer above the light scattering layer; the projection area of ​​the light-emitting layer on the light scattering layer covers the opening, and the projection area of ​​the connection area between the non-light-emitting layer and the light-emitting layer on the light scattering layer is located outside the opening. Based on the principle of light scattering, when the light from the light-emitting layer toward the side of the base layer is emitted from the edge of the opening, it will be diffusely reflected in the light scattering layer to form divergent light with different directions. In this way, the light scattering layer blurs the divergent light, and the image collected by the optical recognition component does not have obvious "graininess" but presents evenly distributed bright spots, thereby avoiding optical spatial interference, effectively reducing or avoiding the occurrence of optical fingerprint moiré, improving the accuracy of fingerprint recognition, and thus greatly improving the user's usage performance and experience.

[0030] In one possible implementation, forming a light-scattering layer on the base layer includes: providing light-scattering particles and a transparent matrix; doping the light-scattering particles into the transparent matrix to form the light-scattering layer; and coating the light-scattering layer on the base layer. The light-scattering particles have a higher refractive index than the transparent matrix. Thus, the transparent matrix encapsulating the light-scattering particles forms a light-scattering layer that scatters outgoing light.

[0031] In one possible implementation, the light scattering layer is formed between the base layer and the light source layer, including: providing a first light scattering layer; arranging a plurality of first protrusions on a first surface of the first light scattering layer, with a first groove between two adjacent first protrusions; forming a second light scattering layer on the first surface having the plurality of first protrusions, so that a plurality of second protrusions adapted to the first grooves and a plurality of second grooves adapted to the first protrusions are formed on a side of the second light scattering layer close to the first surface; wherein the refractive index of the first light scattering layer is different from the refractive index of the second light scattering layer.

[0032] In this way, the first light scattering layer and the second light scattering layer form a hierarchical structure with alternating high and low refractive indices. Light can be refracted on the concave-convex surface of the first light scattering layer and the second light scattering layer, thereby changing the propagation direction of light and achieving the effect of light astigmatism.

[0033] In a possible implementation, forming the light source layer above the light scattering layer includes: forming an intermediate layer on the light scattering layer; forming the light source layer on the intermediate layer; wherein a portion of the intermediate layer is located between the light source layer and the light scattering layer, and another portion of the intermediate layer is located within the opening. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] FIG1 is a schematic diagram of the overall structure of an electronic device provided in one embodiment of the present application;

[0035] FIG2 is a schematic diagram of the disassembled structure of an electronic device provided in one embodiment of the present application;

[0036] FIG3 is a schematic structural diagram of a display component and an optical recognition component in an electronic device provided in an embodiment of the present application;

[0037] FIG4 is a schematic structural diagram of a fingerprint detection area in a display assembly according to an embodiment of the present application;

[0038] FIG5 is a schematic structural diagram of a fingerprint detection area in a display assembly according to an embodiment of the present application;

[0039] FIG6 is a schematic diagram of an imaging pattern of a light-emitting layer in a display component on a lens of an optical recognition component in the prior art;

[0040] FIG7 is a schematic diagram of an imaging pattern of a photosensitive unit of a sensor in an optical recognition component in the prior art;

[0041] FIG8 is a schematic diagram of an imaging pattern of a light-emitting layer in a display component on a sensor of an optical recognition component in the prior art;

[0042] FIG9 is a fingerprint image with moiré patterns captured by an optical recognition component in an electronic device in the prior art;

[0043] FIG10 is a fingerprint image with moiré patterns captured by an optical recognition component in an electronic device in the prior art;

[0044] FIG11 is a distorted fingerprint image obtained by optical calculation by an optical recognition component in an electronic device in the prior art;

[0045] FIG12 is a schematic structural diagram of a display component in an electronic device provided in an embodiment of the present application;

[0046] FIG13 is a schematic diagram of light emission of a display component in an electronic device provided in an embodiment of the present application;

[0047] FIG14 is a schematic structural diagram of a light scattering layer in a display assembly provided in one embodiment of the present application;

[0048] FIG15 is a schematic structural diagram of a light scattering layer in a display assembly provided in one embodiment of the present application;

[0049] FIG16 is a schematic structural diagram of a light scattering layer in a display assembly provided in one embodiment of the present application;

[0050] FIG17 is a schematic structural diagram of a first light scattering layer and a second light scattering layer in a light scattering layer provided in one embodiment of the present application;

[0051] FIG18 is a schematic structural diagram of a first light scattering layer and a second light scattering layer in a light scattering layer provided in one embodiment of the present application;

[0052] FIG19 is a schematic structural diagram of a light source layer in a display assembly provided in one embodiment of the present application;

[0053] FIG20 is a schematic structural diagram of a light source layer and a light scattering layer in a display assembly provided in one embodiment of the present application;

[0054] FIG21 is a schematic diagram of light emission after the light scattering layer scatters the light source layer in a display assembly provided by an embodiment of the present application;

[0055] FIG22 is a fingerprint image without moiré patterns captured by an optical recognition component in an electronic device according to an embodiment of the present application;

[0056] FIG23 is a schematic flow chart of a method for manufacturing a display assembly according to an embodiment of the present application;

[0057] FIG24 is a schematic structural diagram of a display assembly after a light scattering layer is formed on a substrate layer in a method for manufacturing the display assembly according to an embodiment of the present application;

[0058] FIG25 is a schematic structural diagram of a display assembly manufacturing method according to an embodiment of the present application after an opening is provided on the light scattering layer;

[0059] FIG26 is a schematic diagram of a process for manufacturing a display component according to an embodiment of the present application;

[0060] FIG27 is a schematic structural diagram of a display assembly after forming an intermediate layer (a first planarization layer and a passivation layer) on a light scattering layer in a method for manufacturing the display assembly according to an embodiment of the present application;

[0061] FIG28 is a schematic diagram of a process for forming a light scattering layer on a base layer in a method for manufacturing a display assembly according to an embodiment of the present application;

[0062] FIG29 is a schematic diagram of a process for forming a light scattering layer on a base layer in a method for manufacturing a display assembly according to an embodiment of the present application;

[0063] FIG30 is a schematic structural diagram of a display assembly after forming a first light scattering layer on a substrate layer in a method for manufacturing the display assembly according to an embodiment of the present application;

[0064] FIG31 is a schematic structural diagram of a display assembly after forming a first protrusion and a first groove on a first light scattering layer in a method for manufacturing the display assembly according to an embodiment of the present application;

[0065] FIG32 is a schematic structural diagram of a display assembly after a second light scattering layer is formed on a first light scattering layer in a method for manufacturing the display assembly according to an embodiment of the present application.

[0066] Description of reference numerals:

[0067] 100-display component; 10-base layer; 20-light source layer;

[0068] 201-light-emitting layer; 202-non-light-emitting layer; 2021-inclined portion;

[0069] 203 - connection area; 30 - light scattering layer; 31 - opening;

[0070] 32-sub-scattering layer; L1-first direction; L2-second direction;

[0071] W1-first width; W2-second width; W3-third width;

[0072] W4 - fourth width; W5 - fifth width; W6 - sixth width;

[0073] 301-transparent matrix; 302-light scattering particles; 303-first light scattering layer;

[0074] 3031 - first surface; 3032 - first protrusion; 3033 - first groove;

[0075] 304 - second light scattering layer; 3041 - second protrusion; 3042 - second groove;

[0076] 40-middle layer; 401-first flat layer; 402-second flat layer;

[0077] 403-passivation layer; 50-transistor; 60-encapsulation layer;

[0078] 110-opening; 120-fingerprint detection area; 200-mobile phone;

[0079] 21- Optical recognition component; 211- Lens; 212- Sensor;

[0080] 22-middle frame; 221-frame; 222-metal middle plate;

[0081] 23-circuit board; 24-battery; 25-back cover;

[0082] 300-fingers; 400-light lines; 500-dark lines;

[0083] 600-distorted image; 700-bright area; 800-dark area. DETAILED DESCRIPTION

[0084] The terms used in the implementation section of this application are only used to explain the specific embodiments of this application and are not intended to limit this application. The implementation of the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0085] An embodiment of the present application provides an electronic device, which may include but is not limited to a mobile phone, a tablet computer, a laptop computer, an ultra-mobile personal computer (UMPC), a handheld computer, a walkie-talkie, a netbook, a point of sales (POS) machine, a personal digital assistant (PDA), a wearable device, a virtual reality device, a wireless USB flash drive, a Bluetooth speaker / headphone, or a mobile or fixed terminal with a camera function, such as a vehicle-mounted front-end device, a driving recorder, and a security device.

[0086] In the embodiment of the present application, a mobile phone 200 is used as an example of the electronic device described above. The mobile phone 200 provided in the embodiment of the present application can be a curved screen mobile phone or a flat screen mobile phone. In the embodiment of the present application, a flat screen mobile phone is used as an example for description. Figures 1 and 2 respectively show the overall structure and the disassembled structure of the mobile phone 200. The display component 100 of the mobile phone 200 provided in the embodiment of the present application can be a water drop screen, a notch screen, a full screen, or a punch-hole screen (see Figure 1). For example, an opening 110 is opened on the display component 100. The following description uses the punch-hole screen as an example for description.

[0087] 1 and 2 , the mobile phone 200 may be a mobile phone 200 with a fingerprint recognition function, and the mobile phone 200 may include at least: a middle frame 22, an optical recognition component 21, and a display component 100, wherein the optical recognition component 21 is located between the display component 100 and the middle frame 22, and the display component 100 may have a fingerprint detection area 120 on its side surface facing away from the optical recognition component 21.

[0088] 2 , the mobile phone 200 may further include a rear housing 25, with the display assembly 100 and the rear housing 25 respectively located on either side of the middle frame 22. Furthermore, the mobile phone 200 may further include a battery 24 located between the middle frame 22 and the rear housing 25, wherein the battery 24 may be located on the side of the middle frame 22 facing the rear housing 25 (as shown in FIG2 ), or the battery 24 may be located on the side of the middle frame 22 facing the display assembly 100. For example, the side of the middle frame 22 facing the rear housing 25 may have a battery compartment (not shown in the figure), and the battery 24 may be installed in the battery compartment. In some other examples, the mobile phone 200 may further include a circuit board 23, wherein the circuit board 23 may be located on the middle frame 22, for example, the circuit board 23 may be located on the side of the middle frame 22 facing the rear housing 25 (as shown in FIG2 ), or the circuit board 23 may be located on the side of the middle frame 22 facing the display assembly 100, with the display assembly 100 and the rear housing 25 respectively located on either side of the middle frame 22.

[0089] When the mobile phone 200 is a flat-screen mobile phone, the display component 100 can be an organic light-emitting diode (OLED) display component or a liquid crystal display (LCD) component. When the mobile phone 200 is a curved-screen mobile phone, the display component 100 can be an OLED display component. It should be understood that the display component 100 may include a display and a touch device. The display is used to output display content to the user, and the touch device is used to receive touch events input by the user on the display component 100.

[0090] Continuing with reference to Figure 2, the middle frame 22 may include a metal middle plate 222 and a frame 221, and the frame 221 is arranged around the outer periphery of the metal middle plate 222. Generally, the frame 221 may include a top frame, a bottom frame, a left frame and a right frame, and the top frame, the bottom frame, the left frame and the right frame form a frame of a square ring structure. The material of the metal middle plate 222 includes but is not limited to aluminum plate, aluminum alloy, stainless steel, steel-aluminum composite die-cast plate, titanium alloy or magnesium alloy. The frame 221 may be a metal frame, a ceramic frame, or a glass frame. When the frame 221 is a metal frame, the material of the metal frame includes but is not limited to aluminum alloy, stainless steel, steel-aluminum composite die-cast plate or titanium alloy. The metal middle plate 222 and the frame 221 may be snap-fitted, welded, bonded or integrally formed, or the metal middle plate 222 and the frame 221 may be fixedly connected by injection molding.

[0091] The top and bottom frames are positioned opposite each other, and the left and right frames are positioned opposite each other. The top frame is connected to one end of the left and right frames with rounded corners, respectively. The bottom frame is connected to the other end of the left and right frames with rounded corners, respectively, thereby forming a rounded rectangular area. The back cover ground plane is positioned within the rounded rectangular area and is connected to the top, bottom, left, and right frames, respectively. It is understood that the back cover ground plane can be the back cover 25 of the mobile phone 200.

[0092] The back cover 25 may be a metal back cover, a glass back cover, a plastic back cover, or a ceramic back cover. In the embodiment of the present application, the material of the back cover 25 is not limited and is not limited to the above examples.

[0093] It should be noted that, in some examples, the back shell 25 of the mobile phone 200 can be connected to the frame 221 to form an integrally molded (Unibody) back shell. For example, the mobile phone 200 may include: a display component 100, a metal middle plate 222 and a back shell. The back shell can be a back shell formed by integrally molding (Unibody) the frame 221 and the back shell 25, so that the circuit board 23 and the battery 24 are located in the space surrounded by the metal middle plate 222 and the back shell.

[0094] It should be understood that the structures illustrated in the embodiments of the present application do not constitute a specific limitation on the mobile phone 200. In other embodiments of the present application, the mobile phone 200 may include more or fewer components than shown, or may combine or separate certain components, or arrange the components differently. The components shown in the illustrations may be implemented in hardware, software, or a combination of software and hardware.

[0095] In the embodiment of the present application, as shown in FIG3 , the optical recognition component 21 may include a lens 211 and a sensor 212 , wherein the lens 211 is located between the display component 100 and the sensor 212 . The display component 100 has a fingerprint detection area 120 (see FIG4 and FIG5 ). Specifically, the fingerprint detection area 120 is located on the side of the display component 100 that contacts the finger 300 . Furthermore, the projection area of ​​the fingerprint detection area 120 on the middle frame 22 may at least partially overlap with the projection area of ​​the lens 211 on the middle frame 22 , thereby ensuring that the optical recognition component 21 accurately detects fingerprints within the fingerprint detection area 120 .

[0096] When the finger 300 touches the fingerprint detection area 120, the light-emitting unit (i.e., the light-emitting layer 201) of the display component 100 emits light, which is then transmitted to the finger 300 through the transparent electrode of the display component 100. The surface of the finger 300 has a microscopic texture structure. After the light hits the finger 300, the peaks and troughs of the microscopic texture structure reflect light with different intensities. After passing through the transparent electrode again, an optical image of the fingerprint microscopic surface is formed. The fingerprint information is then captured and calculated by the optical sensor 212 to obtain fingerprint information for identification.

[0097] Figure 6 shows the image of an object presented by the light-emitting units in display assembly 100 under lens 211. This image presents a regular pattern of light and dark, with a high spatial frequency. Specifically, the image comprises multiple bright regions 700, with dark regions 800 formed in the gaps between these regions. It should be noted that spatial frequency refers to the number of cycles of repetitive light and dark fringes or the number of repetitions of sinusoidal changes in shading within a unit viewing angle. Additionally, Figure 7 shows the photosensitive units of sensor 212, which are arranged in the same shape as Figure 6 but have a slightly different spatial frequency. The spatial frequency of the pattern in Figure 7 is slightly lower than that of the pattern in Figure 6. In Figure 8, when the light-emitting units form an image on sensor 212, due to the spaced photosensitive units in the sensor, some image information is not captured. The overlapping images form a pattern of enhancements and reductions in spatial distribution, resulting in light and dark fringes (see light fringes 400 and dark fringes 500 in Figure 8), also known as moiré.

[0098] It should be noted that when the imaging pattern in FIG6 and the imaging pattern in FIG7 are arranged in the same direction, vertical stripes will be formed, and when the two are at a certain angle, oblique stripes will be formed. Due to the optical diffuse reflection of the fingerprint surface, the direction of each light path is not consistent, so in actual application scenarios, irregular stripes are usually formed. In addition, different imaging effects are also seen from different observation angles. For example, as shown in FIG9, moiré patterns with clear light and dark boundaries are formed, and the image has a clear "graininess". Alternatively, as shown in FIG10, the fingerprint image with moiré patterns appears as unevenly distributed bright spots, and a distorted image 600 is generated in the image. FIG11 is a distorted fingerprint image obtained by the optical recognition component 21 through optical calculation, and the optical recognition component 21 cannot accurately identify the user's fingerprint that forms the distorted image 600.

[0099] Since the optical recognition component 21 draws the fingerprint image by calculating the light and dark features of the image, when the moiré image is similar to the fingerprint image, the image of the fingerprint itself cannot be recognized, making the user's fingerprint difficult to recognize, reducing the accuracy of fingerprint recognition, and thus reducing the user's performance and experience.

[0100] Based on this, an embodiment of the present application provides a display component 100, which displays the display component 100 by setting a light scattering layer 30 between the base layer 10 and the light source layer 20, and having an opening 31 on the light scattering layer 30. The projection area of ​​the light-emitting layer 201 on the light scattering layer 30 covers the opening 31, and the projection area of ​​the connection area 203 between the non-light-emitting layer 202 and the light-emitting layer 201 on the light scattering layer 30 is located outside the opening 31. Based on the principle of light scattering, when the light from the light-emitting layer 201 toward the side of the base layer 10 is emitted from the edge of the opening 31, it will be diffusely reflected in the light scattering layer 30 to form divergent light in different directions. In this way, the light scattering layer 30 blurs the divergent light, and the image captured by the optical recognition component 21 does not have obvious "graininess" but presents evenly distributed bright spots, thereby avoiding optical spatial interference, effectively reducing or avoiding the occurrence of optical fingerprint moiré, improving the accuracy of fingerprint recognition, and thus greatly improving the user's usage performance and experience.

[0101] The specific structure of the display assembly 100 and the manufacturing method of the display assembly 100 are described in detail below with reference to the accompanying drawings.

[0102] As shown in FIG12 or FIG13 , the display assembly 100 provided in an embodiment of the present application may include at least: a base layer 10, a light source layer 20, and a light scattering layer 30 located between the base layer 10 and the light source layer 20. The light source layer 20 may include a light emitting layer 201 and non-light emitting layers 202 located on both sides of the light emitting layer 201. Specifically, in FIG13 , the black arrows indicate the light emission direction of the light source layer 20.

[0103] In the embodiment of the present application, the light scattering layer 30 may have an opening 31. The projection area of ​​the light emitting layer 201 on the light scattering layer 30 covers the opening 31, and the projection area of ​​the connection area 203 between the non-light emitting layer 202 and the light emitting layer 201 on the light scattering layer 30 is located outside the opening 31. Because the light scattering layer 30 can evenly distribute light, when light from the light emitting layer 201 toward the substrate 10 is emitted from the edge of the opening 31, it is diffusely reflected by the light scattering layer 30, forming divergent light with different directions. In this way, the light scattering layer 30 blurs the divergent light, forming a continuous image on the non-light emitting layer 202 of the display component 100, thereby avoiding spatial similarity between the light emitting layer 201 of the display component 100 and the photosensitive units of the sensor 212. The image captured by the optical recognition component 21 does not have obvious "graininess" and is evenly distributed with bright spots, thus avoiding optical spatial interference, effectively reducing or preventing the occurrence of optical fingerprint moiré, improving the accuracy of fingerprint recognition, and thus significantly improving the user's performance and experience.

[0104] It should be noted that, in the embodiment of the present application, the projection area of ​​the light emitting layer 201 on the light scattering layer 30 may completely cover the opening 31 .

[0105] In an embodiment of the present application, as shown in Figure 12, the display component 100 may further include: an intermediate layer 40, the intermediate layer 40 is located between the base layer 10 and the light source layer 20, and a portion of the intermediate layer 40 is located between the light source layer 20 and the light scattering layer 30, and another portion of the intermediate layer 40 is located in the opening 31.

[0106] Specifically, the intermediate layer 40 may include at least one flat layer, a portion of which is located between the light source layer 20 and the light scattering layer 30 , and another portion of which is located within the opening 31 . The flat layer can smoothen the surface of the light scattering layer 30 .

[0107] Furthermore, in some embodiments, the intermediate layer 40 may include: at least two planar layers and at least one passivation layer, wherein the passivation layer is located between two adjacent planar layers, one of the at least two planar layers is located between the light source layer 20 and the planar layer, a portion of the other of the at least two planar layers is located between the passivation layer and the light scattering layer 30, and another portion of the other of the at least two planar layers is located within the opening 31. The passivation layer can provide heat insulation and prevent isolator erosion.

[0108] Exemplarily, as shown in Figure 12, the intermediate layer 40 may include: a first flat layer 401, a second flat layer 402, and a passivation layer 403 located between the first flat layer 401 and the second flat layer 402, wherein a portion of the first flat layer 401 is located between the passivation layer 403 and the light scattering layer 30, another portion of the first flat layer 401 is located in the opening 31, and the second flat layer 402 is located between the light source layer 20 and the passivation layer 403.

[0109] The first planarization layer 401 can planarize the surface flatness of the light scattering layer 30 , and the second planarization layer 402 can planarize the surface flatness of the passivation layer 403 , thereby preventing uneven height and poor flatness from adversely affecting the transistor 50 .

[0110] It should be noted that the materials of the first flat layer 401 and the second flat layer 402 can be resin materials, and the material of the passivation layer 403 can be silicon dioxide. For example, the silicon dioxide serving as the passivation layer 403 can be provided on the first flat layer 401 by evaporation, and the resin material serving as the second flat layer 402 can be provided on the passivation layer 403 by coating.

[0111] In addition, as an optional implementation, at least one transistor 50 may be provided in the second planar layer 402 , and the transistor 50 is in contact with the passivation layer 403 .

[0112] Specifically, the transistor 50 may be a thin film transistor (TFT). The display component 100 having a thin film transistor has advantages such as high responsiveness, high brightness, and high contrast, and has a better display effect.

[0113] As shown in FIG13 , the display assembly 100 may further include an encapsulation layer 60, with the light source layer 20 positioned between the encapsulation layer 60 and the second planar layer 402. The encapsulation layer 60 may be made of silicon nitride, for example. The encapsulation layer 60 protects the light source layer 20 from external influences, thereby preventing damage to the performance of the display assembly 100.

[0114] It is understood that in some embodiments, the bottom surface of the non-luminescent layer 202 can be flush with the bottom surface of the luminescent layer 201, the top surface of the non-luminescent layer 202 can be higher than the top surface of the luminescent layer 201, and the end of the non-luminescent layer 202 close to the luminescent layer 201 can have an inclined portion 2021 (see FIG. 13 ), with the thickness of the inclined portion 2021 gradually decreasing from the end away from the luminescent layer 201 to the end close to the luminescent layer 201. In this way, the emission angle of the light emitted from the luminescent layer 201 toward the encapsulation layer 60 can be increased, thereby increasing the emission range of the emitted light.

[0115] In the embodiment of the present application, the thickness of the light scattering layer 30 is 20-100 nm. For example, the thickness of the light scattering layer 30 can be 70 nm, 80 nm, or 90 nm, etc., which is not limited to the embodiment of the present application and is not limited to the above example. This can reduce the thickness of the display assembly 100 to a certain extent, facilitating the thinning and lightweight display assembly 100, and further facilitating the thinning and lightweight mobile phone 200 incorporating the display assembly 100.

[0116] Specifically, in the embodiment of the present application, the specific formation method of the light scattering layer 30 includes but is not limited to the following two possible implementation methods:

[0117] In one possible implementation, as shown in Figures 14 and 15 , the light scattering layer 30 may include a transparent matrix 301 and light scattering particles 302 distributed in the transparent matrix 301, wherein the refractive index of the light scattering particles 302 is higher than that of the transparent matrix 301. Thus, the transparent matrix 301 encapsulated with the light scattering particles 302 forms the light scattering layer 30, which can scatter the emitted light.

[0118] It should be noted that the transparent matrix 301 may be a colloid material such as photoresist or resin material. For example, the transparent matrix 301 may be an acrylic resin, a polyimide resin, or a polyamide resin.

[0119] The light scattering particles 302 can be organic materials such as acrylic particles, Si particles, poly(3,4-ethylenedioxythiophene) (PEDOT), 4,4'-bis[N-(3-methylphenyl)-N-phenylamino]biphenyl (TPD), 4,4',4"-tris(N-carbazole)triphenylamine (TCTA). Alternatively, in some other embodiments, the light scattering particles 302 can also be inorganic materials. The embodiments of the present application do not impose any restrictions on the materials used for the transparent matrix 301 and the light scattering particles 302, nor are they limited to the above examples. As long as they have a high refractive index and are not easily decomposed, they can be used.

[0120] In the embodiment of the present application, the diameter of the light scattering particles 302 can be 10-100 nm. The nanoscale light scattering particles 302 can be prepared by methods such as physical pulverization or chemical deposition, and the light scattering particles 302 can be microscopic particles with a circular cross-section or any other shape. The nanoscale light scattering particles 302 distributed within the transparent matrix 301 can improve the uniformity of the light scattering layer 30, thereby enhancing the scattering effect of the light scattering layer 30.

[0121] For example, the diameter of the light scattering particles 302 may be 20 nm, 30 nm, 40 nm, etc., and the embodiments of the present application are not limited to this, nor are they limited to the above examples.

[0122] In addition, the light scattering particles 302 can be randomly distributed in the transparent matrix 301, and the doping ratio of the light scattering particles 302 in the transparent matrix 301 can be 3%-97%. It should be noted that the numerical values ​​and numerical ranges involved in this application are approximate values ​​and may have a certain range of errors due to the influence of the manufacturing process. Those skilled in the art can consider such errors to be negligible.

[0123] Another possible implementation is as shown in FIG16 , wherein the light scattering layer 30 may include: at least one stacked first light scattering layer 303 and a second light scattering layer 304. As shown in FIG17 , the first light scattering layer 303 may have a plurality of first protrusions 3032 on a side adjacent to the second light scattering layer 304, with first grooves 3033 formed between two adjacent first protrusions 3032. As shown in FIG17 , the second light scattering layer 304 may have a plurality of second protrusions 3041 on a side adjacent to the first light scattering layer 303, which mate with the first grooves 3033. A second groove 3042 is formed between two adjacent second protrusions 3041, which mate with the first protrusions 3032. Furthermore, the refractive index of the first light scattering layer 303 is different from that of the second light scattering layer 304.

[0124] In this way, the first light scattering layer 303 and the second light scattering layer 304 form a hierarchical structure with alternating high and low refractive indices. Light is refracted by the concave-convex surfaces of the first and second light scattering layers 303, 304, thereby changing the direction of light propagation and achieving the effect of light astigmatism. For example, if the refractive index of the first light scattering layer 303 is greater than that of the second light scattering layer 304, as indicated by the black arrows in FIG. 18 , upon illumination, light first passes through the first light scattering layer 303 and then refracts by the concave-convex surface of the first light scattering layer 303, thereby changing the direction of light propagation and achieving the effect of light astigmatism.

[0125] As an optional embodiment, at least some of the plurality of first protrusions 3032 may have different shapes or sizes (see FIG31 ), and at least some of the plurality of second protrusions 3041 may have different shapes or sizes. In this way, the concave-convex surface of the first light scattering layer 303 and the second light scattering layer 304 may have irregular shapes, further enhancing the scattering effect of the light scattering layer 30.

[0126] In addition, it should be noted that the cross-sectional shape of the first protrusion 3032 and the first groove 3033 can be a rectangle as shown in Figure 17, or a triangle as shown in Figure 18. The embodiments of the present application are not limited to this, nor are they limited to the above examples.

[0127] In an embodiment of the present application, as shown in Figure 19, the light source layer 20 may include multiple light-emitting layers 201 and multiple non-light-emitting layers 202, and the light-emitting layers 201 and the non-light-emitting layers 202 are arranged at intervals. Specifically, the light scattering layer 30 may include multiple sub-scattering layers 32, as shown in Figure 20. The projection area of ​​the multiple sub-scattering layers 32 on the light source layer 20 can completely cover the multiple non-light-emitting layers 202, and the projection area of ​​the multiple sub-scattering layers 32 on the light source layer 20 can cover part of the multiple light-emitting layers 201 adjacent to the multiple non-light-emitting layers 202.

[0128] It is easy to understand that the non-luminescent layer 202 may be a pixel defining layer, and the material of the pixel defining layer may be a resin material.

[0129] Continuing with reference to FIG. 20 , in an embodiment of the present application, the light-emitting layer 201 and the non-light-emitting layer 202 may be spaced apart in the first direction L1, and the width of the projection area of ​​each sub-scattering layer 32 on each light-emitting layer 201 in the first direction L1 is greater than one-fifth of the width of each light-emitting layer 201 in the first direction L1, and the width of the projection area of ​​each sub-scattering layer 32 on each light-emitting layer 201 in the first direction L1 is less than four-fifths of the width of each light-emitting layer 201 in the first direction L1.

[0130] Specifically, as shown in FIG20 , the width of each light-emitting layer 201 in the first direction L1 is the first width W1, the width of the projection area of ​​each sub-scattering layer 32 on each light-emitting layer 201 in the first direction L1 is the second width W2, and the width of the area of ​​each light-emitting layer 201 not covered by the sub-scattering layer 32 in the first direction L1 is the third width W3. It is easy to understand that W1=W2+W3, that is, 1 / 5W1<W2<4 / 5W1, 1 / 5W1<W3<4 / 5W1, that is, the third width W3 of the area of ​​each light-emitting layer 201 not covered by the sub-scattering layer 32 in the first direction L1 is greater than one-fifth of the first width W1 of each light-emitting layer 201 in the first direction L1, and the third width W3 of the area of ​​each light-emitting layer 201 not covered by the sub-scattering layer 32 in the first direction L1 is less than four-fifths of the first width W1 of each light-emitting layer 201 in the first direction L1.

[0131] The light-emitting layer 201 and the non-light-emitting layer 202 may be spaced apart in the second direction L2, a width in the second direction L2 of a projection area of ​​each sub-scattering layer 32 on each light-emitting layer 201 is greater than one-fifth of a width of each light-emitting layer 201 in the second direction L2, and a width in the second direction L2 of a projection area of ​​each sub-scattering layer 32 on each light-emitting layer 201 is less than four-fifths of a width of each light-emitting layer 201 in the second direction L2, wherein the second direction L2 is perpendicular to the first direction L1.

[0132] Specifically, as shown in FIG20 , the width of each light-emitting layer 201 in the second direction L2 is a fourth width W4, the width of the projection area of ​​each sub-scattering layer 32 on each light-emitting layer 201 in the second direction L2 is a fifth width W5, and the width of the area of ​​each light-emitting layer 201 not covered by the sub-scattering layer 32 in the second direction L2 is a sixth width W6. It is easy to understand that W4=W5+W6, that is, 1 / 5W4<W5<4 / 5W4, 1 / 5W4<W6<4 / 5W4, that is, the sixth width W6 of the area of ​​each light-emitting layer 201 not covered by the sub-scattering layer 32 in the second direction L2 is greater than one-fifth of the fourth width W4 of each light-emitting layer 201 in the second direction L2, and the sixth width W6 of the area of ​​each light-emitting layer 201 not covered by the sub-scattering layer 32 in the second direction L2 is less than four-fifths of the fourth width W4 of each light-emitting layer 201 in the second direction L2.

[0133] As an optional embodiment, the second width W2 of the projection area of ​​each sub-scattering layer 32 on each light-emitting layer 201 in the first direction L1 and the fifth width W5 of the projection area of ​​each sub-scattering layer 32 on each light-emitting layer 201 in the second direction L2 can be as small as possible. This will have a smaller impact on the fingerprint imaging of the finger 300 and will not have a negative effect on the fingerprint image collected by the optical recognition component 21 and the recognition of fingerprint features.

[0134] Figure 21 shows the scattering principle of the light scattering layer 30. When light is emitted from the edge of the light-emitting layer 201, it will be diffusely reflected at the light scattering layer 30 (sub-scattering layer 32), forming divergent light in different directions, thereby blurring the light pattern at the non-light-emitting layer 202. When observed from the side of the light-emitting layer 201 toward the substrate layer 10, the light tends to be continuous, thereby destroying the high-frequency characteristics of the space in which the light-emitting layer 201 is imaged regularly in the optical recognition component 21. As shown in Figure 22, the image captured by the optical recognition component 21 no longer has a clear "graininess" compared to Figures 9 and 10, and is a uniformly distributed bright spot, thereby avoiding optical spatial interference and effectively reducing the generation of optical moiré.

[0135] Furthermore, since the light scattering layer 30 is disposed on the side of the light emitting layer 201 facing the base layer 10 , the light scattering layer 30 will not adversely affect the front light output display effect of the display assembly 100 .

[0136] In addition, it can be understood that the area where the light scattering layer 30 is arranged in the display assembly 100 corresponds to the fingerprint detection area 120, thereby achieving the function of improving the accuracy of fingerprint detection.

[0137] In addition, the embodiment of the present application further provides a method for manufacturing the display assembly 100, as shown in FIG23 . The method may at least include:

[0138] S101: providing a base layer 10.

[0139] In the embodiment of the present application, the base layer 10 may be made of a glass substrate or a flexible material substrate. For example, the flexible material may be polyimide (PI), which has excellent mechanical properties, dielectric properties, thermal expansion properties, and stability.

[0140] S102 : forming a light scattering layer 30 on the base layer 10 .

[0141] Specifically, as shown in Figure 24, a light scattering layer 30 is formed on the base layer 10. Taking the light scattering layer 30 as a transparent matrix 301 wrapped with light scattering particles 302 as an example, the light scattering layer 30 can be formed by coating the transparent matrix 301 containing the light scattering particles 302 on the base layer 10, and curing the light scattering layer 30 formed by the transparent matrix 301 wrapped with the light scattering particles 302 through a curing process.

[0142] S103 : providing openings 31 in the light scattering layer 30 .

[0143] 25 , an opening 31 may be formed on the light scattering layer 30 by etching. It should be noted that the shape of the opening 31 may be any pattern, that is, the pattern required in the actual application scenario may be obtained by etching.

[0144] S104 : forming the light source layer 20 on the light scattering layer 30 .

[0145] In which, the light source layer 20 may include a light-emitting layer 201 and non-light-emitting layers 202 located on both sides of the light-emitting layer 201, the projection area of ​​the light-emitting layer 201 on the light-scattering layer 30 covers the opening 31, and the projection area of ​​the connection area 203 between the non-light-emitting layer 202 and the light-emitting layer 201 on the light-scattering layer 30 is located outside the opening 31.

[0146] Based on the principle of light scattering, when the light from the light-emitting layer 201 toward the side of the base layer 10 is emitted from the edge of the opening 31, it will be diffusely reflected in the light scattering layer 30 to form divergent light in different directions. In this way, the light scattering layer 30 blurs the divergent light, and the image collected by the optical recognition component 21 does not have obvious "graininess" but presents evenly distributed bright spots, thereby avoiding optical spatial interference, effectively reducing or avoiding the occurrence of optical fingerprint moiré, improving the accuracy of fingerprint recognition, and thus greatly improving the user's usage performance and experience.

[0147] In the embodiment of the present application, as shown in FIG26 , S104 may specifically include:

[0148] S1041 : forming an intermediate layer 40 on the light scattering layer 30 .

[0149] For example, as shown in Figure 27, a first flat layer 401 can be formed on the light scattering layer 30, and a passivation layer 403 can be formed on the first flat layer 401. The first flat layer 401 can flatten the surface of the light scattering layer 30 to achieve a smooth surface, and the passivation layer can provide heat insulation and prevent spacer erosion.

[0150] In addition, a second planar layer 402 may be further formed on the passivation layer 403 , and at least one transistor 50 may be disposed in the second planar layer 402 , with the transistor 50 being in contact with the passivation layer 403 .

[0151] It should be noted that the materials of the first flat layer 401 and the second flat layer 402 can be resin materials, and the material of the passivation layer 403 can be silicon dioxide. For example, the silicon dioxide serving as the passivation layer 403 can be provided on the first flat layer 401 by evaporation, and the resin material serving as the second flat layer 402 can be provided on the passivation layer 403 by coating.

[0152] The transistor 50 may be a thin film transistor (TFT). The display element 100 having a thin film transistor has advantages such as high responsiveness, high brightness, and high contrast, and has a better display effect.

[0153] S1042 : forming the light source layer 20 on the intermediate layer 40 .

[0154] A portion of the intermediate layer 40 is located between the light source layer 20 and the light scattering layer 30 , and another portion of the intermediate layer 40 is located in the opening 31 .

[0155] It should be noted that, in the embodiment of the present application, the light scattering layer 30 may be formed on the base layer 10 in the following two possible implementations:

[0156] One possible implementation is as shown in FIG28 , S102 may specifically include:

[0157] S1021a: Provide light scattering particles 302 and a transparent matrix 301.

[0158] It should be noted that the transparent matrix 301 may be a colloid material such as photoresist or resin material. For example, the transparent matrix 301 may be an acrylic resin, a polyimide resin, or a polyamide resin.

[0159] The light scattering particles 302 can be organic materials such as acrylic particles, Si particles, poly(3,4-ethylenedioxythiophene) (PEDOT), 4,4'-bis[N-(3-methylphenyl)-N-phenylamino]biphenyl (TPD), and 4,4',4"-tris(N-carbazole)triphenylamine (TCTA). The embodiments of the present application do not limit the materials used for the transparent matrix 301 and the light scattering particles 302, nor are they limited to the above examples.

[0160] S1022a: doping light scattering particles 302 into the transparent matrix 301 to form a light scattering layer 30.

[0161] It should be noted that the doping ratio of the light scattering particles 302 in the transparent matrix 301 may be 3%-97%.

[0162] S1023a: coating the light scattering layer 30 on the base layer 10 .

[0163] The refractive index of the light scattering particles 302 is higher than that of the transparent matrix 301. Thus, the transparent matrix 301 encapsulating the light scattering particles 302 forms a light scattering layer 30, which can scatter the emitted light.

[0164] Another possible implementation is as shown in FIG. 29 , S102 may specifically include:

[0165] S1021b: providing a first light scattering layer 303 .

[0166] Specifically, as shown in FIG. 30 , a first light scattering layer 303 is formed on the base layer 10 .

[0167] S1022b: a plurality of first protrusions 3032 are provided on the first surface 3031 of the first light scattering layer 303 , with a first groove 3033 being defined between two adjacent first protrusions 3032 .

[0168] 30 and 31 , a plurality of first protrusions 3032 are provided on the first surface 3031 of the first light scattering layer 303, so that a first groove 3033 is formed between two adjacent first protrusions 3032. It should be noted that the first protrusions 3032 and the first grooves 3033 can be formed on the first light scattering layer 303 using a nanoindentation process.

[0169] S1023b: Form a second light scattering layer 304 on the first surface 3031 having the plurality of first protrusions 3032, so that a plurality of second protrusions 3041 adapted to the first grooves 3033 and a plurality of second grooves 3042 adapted to the first protrusions 3032 are formed on a side of the second light scattering layer 304 close to the first surface 3031.

[0170] Specifically, as shown in Figure 32, the second light scattering layer 304 is formed on the first light scattering layer 303. Since the first surface 3031 of the first light scattering layer 303 has a plurality of first protrusions 3032 and a plurality of first grooves 3033, when the second light scattering layer 304 is disposed on the first surface 3031 of the first light scattering layer 303, a plurality of second protrusions 3041 that match the first grooves 3033, and a plurality of second grooves 3042 that match the first protrusions 3032 are formed on a side of the second light scattering layer 304 that is close to the first surface 3031 (see Figures 17 and 18).

[0171] It should be noted that, in the embodiment of the present application, the refractive index of the first light scattering layer 303 is different from the refractive index of the second light scattering layer 304 .

[0172] In this way, the first light scattering layer 303 and the second light scattering layer 304 form a hierarchical structure with alternating high and low refractive indices. Light can be refracted on the concave-convex surface of the first light scattering layer 303 and the second light scattering layer 304, thereby changing the propagation direction of light and achieving the effect of light astigmatism.

[0173] In the description of the embodiments of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to a fixed connection, an indirect connection via an intermediate medium, internal communication between two components, or an interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of this application based on specific circumstances.

[0174] In the embodiments of the present application, any device or element referred to or implied must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the embodiments of the present application. In the description of the embodiments of the present application, the meaning of "plurality" is two or more, unless otherwise specifically specified.

[0175] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the embodiments of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the embodiments of the present application described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "may include" and "have" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0176] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the present application, rather than to limit them. Although the embodiments of the present application have been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents, and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A display component, applied to an electronic device with a fingerprint recognition function, characterized in that: At least: a base layer, a light source layer, and a light scattering layer located between the base layer and the light source layer; The light source layer includes a light-emitting layer and non-light-emitting layers located on both sides of the light-emitting layer; The light scattering layer has an opening, the projection area of ​​the luminescent layer on the light scattering layer covers the opening, and the projection area of ​​the connection area between the non-luminescent layer and the luminescent layer on the light scattering layer is located outside the opening.

2. The display assembly according to claim 1, wherein: The light scattering layer comprises: a transparent matrix and light scattering particles distributed in the transparent matrix; Furthermore, the refractive index of the light scattering particles is higher than that of the transparent matrix.

3. The display assembly according to claim 1, wherein: The light scattering layer comprises: at least one set of a first light scattering layer and a second light scattering layer stacked; The first light scattering layer has a plurality of first protrusions on a side close to the second light scattering layer, and a first groove is formed between two adjacent first protrusions; The second light scattering layer has a plurality of second protrusions on a side close to the first light scattering layer, which are matched with the first grooves. A second groove is formed between two adjacent second protrusions, and the second groove is matched with the first protrusion. The refractive index of the first light scattering layer is different from the refractive index of the second light scattering layer.

4. The display assembly according to any one of claims 1 to 3, characterized in that: The light source layer includes a plurality of light-emitting layers and a plurality of non-light-emitting layers, and the light-emitting layers are spaced apart from the non-light-emitting layers; The light scattering layer includes a plurality of sub-scattering layers, and the projection areas of the plurality of sub-scattering layers on the light source layer completely cover the plurality of non-luminescent layers, and the projection areas of the plurality of sub-scattering layers on the light source layer cover portions of the plurality of luminescent layers adjacent to the plurality of non-luminescent layers.

5. The display assembly according to claim 4, wherein: The light-emitting layer and the non-light-emitting layer are spaced apart in a first direction; The width of the projection area of ​​each sub-scattering layer on each light-emitting layer in the first direction is greater than one-fifth of the width of each light-emitting layer in the first direction, and the width of the projection area of ​​each sub-scattering layer on each light-emitting layer in the first direction is less than four-fifths of the width of each light-emitting layer in the first direction.

6. The display assembly according to claim 5, characterized in that The light-emitting layer and the non-light-emitting layer are spaced apart in the second direction; The width of the projection area of ​​each sub-scattering layer on each light-emitting layer in the second direction is greater than one-fifth of the width of each light-emitting layer in the second direction, and the width of the projection area of ​​each sub-scattering layer on each light-emitting layer in the second direction is less than four-fifths of the width of each light-emitting layer in the second direction; The second direction is perpendicular to the first direction.

7. The display assembly according to any one of claims 1 to 6, characterized in that: Also includes: middle layer; The intermediate layer is located between the base layer and the light source layer; A portion of the intermediate layer is located between the light source layer and the light scattering layer, and another portion of the intermediate layer is located in the opening.

8. The display assembly according to claim 7, wherein: The intermediate layer includes: at least one flat layer; a portion of the flat layer is located between the light source layer and the light scattering layer, and another portion of the flat layer is located in the opening.

9. The display assembly according to claim 8, wherein: The intermediate layer includes: at least two planar layers and at least one passivation layer; The passivation layer is located between two adjacent planar layers; One of the at least two flat layers is located between the light source layer and the flat layer, a portion of the other of the at least two flat layers is located between the passivation layer and the light scattering layer, and another portion of the other of the at least two flat layers is located in the opening.

10. The display assembly according to claim 9, wherein: The intermediate layer includes: a first flat layer, a second flat layer, and a passivation layer located between the first flat layer and the second flat layer; A portion of the first flat layer is located between the passivation layer and the light scattering layer, and another portion of the first flat layer is located within the opening; The second planar layer is located between the light source layer and the passivation layer. At least one transistor is disposed in the second planar layer, and the transistor is in contact with the passivation layer.

11. The display assembly according to claim 10, wherein: Also includes: Encapsulation layer; The light source layer is located between the encapsulation layer and the second planar layer.

12. The display assembly according to any one of claims 1 to 11, characterized in that: The bottom surface of the non-luminescent layer is flush with the bottom surface of the luminescent layer, and the top surface of the non-luminescent layer is higher than the top surface of the luminescent layer; The non-luminescent layer has an inclined portion at one end close to the luminescent layer, and the thickness of the inclined portion gradually decreases from the end away from the luminescent layer to the end close to the luminescent layer.

13. The display assembly according to any one of claims 1 to 12, characterized in that: The thickness of the light scattering layer is 20-100 nm.

14. An electronic device, characterized in that: At least: A middle frame, an optical identification component, and a display component as described in any one of claims 1 to 13 above; The optical recognition component is located between the display component and the middle frame.

15. The electronic device according to claim 14, characterized in that The optical recognition component includes: a lens and a sensor; The lens is located between the display assembly and the sensor; The display component has a fingerprint detection area, and a projection area of ​​the fingerprint detection area on the middle frame at least partially overlaps with a projection area of ​​the lens on the middle frame.

16. A method for manufacturing a display component, characterized in that: At least: Provides a base layer; forming a light scattering layer on the base layer; providing an opening on the light scattering layer; forming a light source layer above the light scattering layer; The light source layer includes a light-emitting layer and non-light-emitting layers located on both sides of the light-emitting layer, the projection area of ​​the light-emitting layer on the light-scattering layer covers the opening, and the projection area of ​​the connection area between the non-light-emitting layer and the light-emitting layer on the light-scattering layer is located outside the opening.

17. The method for manufacturing a display component according to claim 16, wherein: The step of forming a light scattering layer on the base layer comprises: providing light scattering particles and a transparent matrix; doping the light scattering particles into the transparent matrix to form the light scattering layer; coating the light scattering layer on the base layer; Wherein, the refractive index of the light scattering particles is higher than the refractive index of the transparent matrix.

18. The method for manufacturing a display component according to claim 16, wherein: The light scattering layer formed between the base layer and the light source layer comprises: providing a first light scattering layer; A plurality of first protrusions are provided on the first surface of the first light scattering layer, and a first groove is provided between two adjacent first protrusions; forming a second light scattering layer on the first surface having the plurality of first protrusions, so that a plurality of second protrusions adapted to the first grooves and a plurality of second grooves adapted to the first protrusions are formed on a side of the second light scattering layer close to the first surface; The refractive index of the first light scattering layer is different from the refractive index of the second light scattering layer.

19. The method for manufacturing a display assembly according to any one of claims 16 to 18, wherein: The step of forming a light source layer above the light scattering layer comprises: forming an intermediate layer on the light scattering layer; forming a light source layer on the intermediate layer; Part of the intermediate layer is located between the light source layer and the light scattering layer, and another part of the intermediate layer is located in the opening.

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