Display screen component, display module and electronic equipment

Abstract

The embodiment of the invention provides a display screen component, a display module and electronic equipment, relates to the technical field of electronics, and aims to solve the problem of light leakage of display electronic equipment. The display component can be of a cover plate structure or a protective film layer structure. The display screen component comprises a body and a shading laminated layer, and the body can be of a 2D, 2.5 D or 3D body structure. The shading laminated layer comprises a connecting layer and a shading layer, the connecting layer is connected with the body through chemical bonding, and the shading layer meets the shading effect. Compared with the scheme that an ink layer is physically attached to the body, the chemical bonding connection between the shading lamination layer and the body can improve the adhesive force of the shading lamination layer to the body, the problem of dot-shaped, linear and block-shaped damage of the shading lamination layer due to poor adhesive force is solved, and therefore the light leakage problem caused by the damage of the shading lamination layer is solved.

Description

Technical Field

[0001] This application relates to the field of electronic technologies, and in particular, to a display screen component, a display module, and an electronic device. Background Art

[0002] With the development of electronic technologies, electronic devices with a display function have become ubiquitous in people's lives. The display screen is a core product of an electronic device. The display screen generally includes an effective display area and a peripheral area located around the effective display area. The effective display area of the display screen serves as the effective light-emitting area of the electronic device.

[0003] To prevent the display screen from being scratched, a protective layer is usually provided on the light-emitting side of the display screen. The protective layer covers the effective display area and the peripheral area of the display screen to protect the display screen. During the light-emitting process of the display screen, part of the light emitted from the effective display area will directly shoot out of the protective layer, while part of the light will converge at the corners of the protective layer through optical paths such as refraction and reflection of light, thus forming a visible bright-edge light leakage phenomenon, which greatly affects the experience of consumers. Summary of the Invention

[0004] Embodiments of this application provide a display screen component, a display module, and an electronic device, which are used to improve the problem of light leakage in the display electronic device.

[0005] To achieve the above object, this application adopts the following technical solutions:

[0006] In a first aspect of the embodiments of this application, a display screen component is provided. The display screen component may be, for example, a cover plate or a protective film. The display screen component includes a body and a light-shielding laminate. The body includes a first surface, a second surface, and a side peripheral surface. The first surface is used as the outer surface of the display screen component, the second surface is used as the inner surface of the display screen component, and the side peripheral surface is located between the first surface and the second surface and intersects both the first surface and the second surface; the light-shielding laminate covers at least a part of the area of the side peripheral surface; the light-shielding laminate includes a connecting layer and a first light-shielding layer; the connecting layer is located between the first light-shielding layer and the body, and the connecting layer is bonded to the body through chemical bonding.

[0007] For the display screen component provided by the embodiments of this application, the light-leakage area on the side peripheral surface of the body is covered by the light-shielding laminate, so that light cannot shoot out from the side peripheral surface. After the display screen component is applied to an electronic device, the problem of light leakage in the electronic device can be improved. On this basis, the connecting layer in the light-shielding laminate is bonded to the body through chemical bonding. Compared with the structure in the related art where the ink is physically attached to the body, the chemical bonding in the embodiments of this application can greatly improve the adhesion of the light-shielding laminate to the body. Thus, the problem of dot-like, line-like, and block-like light leakage caused by poor adhesion of the display screen component can be effectively improved.

[0008] In a possible implementation, the light-shielding laminate further includes a second light-shielding layer; the second light-shielding layer is located on the side of the connection layer away from the body, and the insulation impedance of the second light-shielding layer is greater than that of the first light-shielding layer. By adding the second light-shielding layer with a large insulation impedance in the light-shielding laminate, on the basis of ensuring the light-shielding effect of the light-shielding laminate, the insulation impedance of the light-shielding laminate can be increased to reduce the electrical interference brought by the light-shielding laminate to other conductive structures such as the touch screen in the electronic device, and improve the performance of the electronic device.

[0009] In a possible implementation, the second light-shielding layer is located between the first light-shielding layer and the connection layer. By using the color of the first light-shielding layer as the appearance color of the light-shielding laminate, the appearance of the light-shielding laminate can be cyan-black, meeting different usage requirements.

[0010] In a possible implementation, the first light-shielding layer is located between the second light-shielding layer and the connection layer. By using the color of the second light-shielding layer as the appearance color of the light-shielding laminate, the appearance of the light-shielding laminate can be bright-colored, meeting different usage requirements.

[0011] In a possible implementation, the light-shielding laminate further includes a light-adjusting layer; the light-adjusting layer is located between the connection layer and the first light-shielding layer, and the refractive index of the light-adjusting layer is greater than that of the connection layer and less than that of the first light-shielding layer. By adding the light-adjusting layer in the light-shielding laminate, the overall refractive index of the light-shielding laminate can be adjusted to adjust the appearance color of the light-shielding laminate to meet different usage requirements, and at the same time, the problem of light reflection of the light-shielding laminate can be improved.

[0012] In a possible implementation, the light-adjusting layer is located between the second light-shielding layer and the connection layer. The light-adjusting layer can adjust the presented color of the second light-shielding layer to enrich the appearance color of the light-shielding laminate.

[0013] In a possible implementation, the light-shielding laminate is prepared by a chemical vapor deposition process. When the chemical vapor deposition process forms a film, the film layer structure is diversified, the thickness can be controlled at the micron level, the film thickness uniformity is good, the film layer is dense, the adhesion is strong, the process precision is high, and the yield of the display screen components is high.

[0014] In a possible implementation, the side peripheral surface includes a first part, and the first part intersects with the first surface; the light-shielding laminate covers the first part. The first part is a position where light leakage may occur in the body, and covering the first part with the light-shielding laminate can improve the light leakage problem at the first part.

[0015] In a possible implementation, the side peripheral surface further includes a second part, and the second part intersects with the second surface, and the light-shielding laminate covers the second part. The second part is a position where light leakage may occur in the body, and covering the second part with the light-shielding laminate can improve the light leakage problem at the second part.

[0016] In a possible implementation, the side peripheral surface further includes a third part which is parallel to the thickness direction of the display screen component, and the light-shielding laminate covers the third part. The third part is a position where light leakage may occur in the body, and covering the third part with the light-shielding laminate can improve the light leakage problem at the third part.

[0017] In a possible implementation, the thickness of the light-shielding laminate ranges from 200 nm to 1000 nm. By limiting the overall thickness of the light-shielding laminate within 1000 nm, the thinner light-shielding laminate can further improve the adhesion between the light-shielding laminate and the body.

[0018] In a possible implementation, the optical density of the light-shielding laminate is greater than or equal to 0.4. By limiting the optical density of the light-shielding laminate to be greater than or equal to 0.4, the light-shielding laminate can have a good light-shielding effect.

[0019] In a possible implementation, the transmittance of the light-shielding laminate at 550 nm ranges from 0% to 30%. By limiting the transmittance of the light-shielding laminate at 550 nm to be less than 30%, the light-shielding laminate can have a good light-shielding effect.

[0020] In a possible implementation, the insulation impedance of the light-shielding laminate is greater than or equal to 1 MΩ. By setting the insulation impedance of the light-shielding laminate above 1 MΩ, the electrical interference of the light-shielding laminate to conductive structures such as the touch screen in the electronic device can be almost eliminated.

[0021] In a possible implementation, the material of the connection layer includes silicon oxide or silicon nitride. Both silicon oxide and silicon nitride are materials with high pencil hardness. Using silicon oxide or silicon nitride as the material of the connection layer can improve the hardness of the connection layer, effectively reducing the occurrence of indentation, scratching, and damage to the light-shielding laminate, as well as the dot-like, line-like, and surface-like light leakage phenomena caused by the damage.

[0022] In a possible implementation, the thickness of the connection layer ranges from 20 nm to 100 nm. By setting the thickness of the connection layer within 20 nm - 100 nm, while achieving the chemical bonding connection between the connection layer and the body, the thickness of the connection layer is minimized to further improve the adhesion of the light-shielding laminate.

[0023] In a possible implementation, the material of the first light-shielding layer includes carbon or metal oxide. Both carbon and metal oxide are materials with high pencil hardness. Using carbon or metal oxide as the material of the connection layer can improve the hardness of the first light-shielding layer, effectively reducing the occurrence of indentation, scratching, and damage to the light-shielding laminate, as well as the dot-like, line-like, and surface-like light leakage phenomena caused by the damage.

[0024] In a possible implementation, the thickness of the first light-shielding layer ranges from 100 nm to 950 nm. The thickness of the first light-shielding layer is set within the range of 100 nm to 950 nm. On the basis of ensuring the light-shielding effect, the thickness of the first light-shielding layer is minimized as much as possible to further improve the adhesion of the light-shielding stack.

[0025] In a possible implementation, the material of the second light-shielding layer includes silicon hydride or silicon. Silicon hydride or silicon has a higher refractive index than carbon, which will cause a certain sidewall reflection phenomenon to change the appearance structure of the light-shielding stack and meet different requirements.

[0026] In a possible implementation, the thickness of the second light-shielding layer ranges from 1 nm to 300 nm. The thickness of the second light-shielding layer is set within the range of 1 nm to 300 nm. On the basis of ensuring the light-shielding effect, the thickness of the second light-shielding layer is minimized as much as possible to further improve the adhesion of the light-shielding stack.

[0027] In a possible implementation, the material of the light-adjusting layer includes a silicon oxynitride layer and aluminum oxide. The refractive index of the silicon oxynitride layer or aluminum oxide is relatively easy to reach the required refractive index, and the cost is relatively low.

[0028] In a possible implementation, the refractive index of the light-adjusting layer ranges from 1.6 to 1.8. Controlling the refractive index of the light-adjusting layer within the range of 1.6 to 1.8 can preferably eliminate the problem of reflection of the light-shielding stack, making the light-shielding stack present a darker color (such as black).

[0029] In a possible implementation, the thickness of the light-adjusting layer ranges from 1 nm to 100 nm. The thickness of the light-adjusting layer is set within the range of 1 nm to 100 nm. On the basis of ensuring the adjustment of optical parameters, the thickness of the light-adjusting layer is minimized as much as possible to further improve the adhesion of the light-shielding stack.

[0030] In a second aspect of the embodiments of the present application, a display module is provided. The display module includes a display screen component and a display screen. The display screen component includes the display screen component according to any one of the first aspect, and the second surface of the display screen component faces the light-emitting side of the display screen.

[0031] In a third aspect of the embodiments of the present application, an electronic device is provided. The electronic device includes a display module and a rear shell. The display module includes the display module according to the second aspect, and the rear shell is located on the back of the display module. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is an architecture diagram of an electronic device provided by an embodiment of the present application;

[0033] Figure 2A It is an optical path diagram of a display module provided by an embodiment of the present application;

[0034] Figure 2B The display effect diagram of an electronic device provided by an embodiment of the present application;

[0035] Figure 3 The partial schematic diagram of a protective layer provided by an embodiment of the present application;

[0036] Figure 4A The cross-sectional view of a display screen component provided by an embodiment of the present application;

[0037] Figure 4B The top view of a display screen component provided by an embodiment of the present application;

[0038] Figures 5A - 5D The cross-sectional schematic diagram of a main body provided by an embodiment of the present application;

[0039] Figure 6 The structural schematic diagram of a display screen component provided by an embodiment of the present application;

[0040] Figure 7A The structural schematic diagram of a display screen component provided by an embodiment of the present application;

[0041] Figure 7B The light transmission effect diagram of a display screen component provided by an embodiment of the present application;

[0042] Figure 7C The light transmittance curve graph of a display screen component provided by an embodiment of the present application;

[0043] Figure 8A The structural schematic diagram of a display screen component provided by an embodiment of the present application;

[0044] Figure 8B The light transmittance curve graph of a display screen component provided by an embodiment of the present application;

[0045] Figure 9A The structural schematic diagram of a display screen component provided by an embodiment of the present application;

[0046] Figure 9B The light transmittance curve graph of a display screen component provided by an embodiment of the present application.

[0047] Reference numerals:

[0048] 1 - Electronic device; 10 - Protective layer; 20 - Display screen; 30 - Middle frame; 40 - Rear shell;

[0049] 50 - Display screen component; 51 - Main body; 52 - Light-shielding laminate; 521 - Connection layer; 522 - First light-shielding layer; 523 - Second light-shielding layer; 524 - Dimming layer;

[0050] a1 - The first surface; a2 - The second surface; a3 - The third surface; a31 - The first part; a32 - The second part; a33 - The third part. Detailed implementation

[0051] Next, the technical solutions in the embodiments of the present application will be described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments.

[0052] Hereinafter, terms such as "second" and "first" are only for convenience of description, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "second", "first", etc. may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "a plurality" is two or more.

[0053] In addition, in the embodiments of the present application, orientation terms such as "upper", "lower", "left", "right", etc. may include but are not limited to being defined relative to the schematic placement of components in the accompanying drawings. It should be understood that these directional terms may be relative concepts, which are used for relative description and clarification, and may change accordingly with the change of the orientation of the components in the accompanying drawings.

[0054] In the embodiments of the present application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" may be a fixed connection, a detachable connection, or integrated; it may be directly connected, or indirectly connected through an intermediate medium. In addition, the term "coupled" may be a direct electrical connection, or an indirect electrical connection through an intermediate medium. The term "contact" may be direct contact, or indirect contact through an intermediate medium.

[0055] In the embodiments of the present application, "and / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone, where A and B may be singular or plural. The character " / " generally represents an "or" relationship between the front and rear associated objects.

[0056] Embodiments of the present application provide an electronic device, such as a consumer electronic product with a display function, a home electronic product, a vehicle-mounted electronic product, a financial electronic device product, etc. Among them, consumer electronic products include mobile phones, tablets, laptop computers, e-readers, personal computers (PCs), personal digital assistants (PDAs), desktop monitors, smart wearable products (e.g., smart watches, smart bracelets), virtual reality (VR) devices, augmented reality (AR) devices, drones, etc. Home electronic products include smart door locks, rechargeable small household appliances (e.g., floor cleaning robots), etc. Vehicle-mounted electronic products include vehicle navigators, vehicle-mounted high-density digital video discs (DVDs), etc. Financial electronic device products include automated teller machines (ATMs), electronic devices for self-service business handling, etc.

[0057] Embodiments of the present application do not impose special restrictions on the specific forms of the above devices. For the convenience of description below, an electronic device is taken as an example of a smart watch to schematically illustrate the electronic device.

[0058] Figure 1 It is an architecture diagram of an electronic device provided by an embodiment of the present application.

[0059] As Figure 1 shown, the electronic device 1 mainly includes a protective layer 10, a display screen 20, a middle frame 30, and a rear case (or called a battery cover, a housing) 40.

[0060] The display screen 20 has a light-emitting side where a display picture can be seen and a back surface opposite to the light-emitting side. The protective layer 10 is located on the light-emitting side of the display screen 20, and the rear case 40 is located on the back surface of the display screen 20. The display screen 20 includes an active area (AA), and the active area AA is used to display images. The active area AA includes a plurality of sub-pixels (SP).

[0061] In a possible embodiment, the display screen 20 is a liquid crystal display (LCD). Based on this, the electronic device 1 further includes a backlight module (BLU) located on the back of the liquid crystal display. The backlight module can provide light sources for the liquid crystal display so that each sub-pixel in the liquid crystal display can emit light to realize image display.

[0062] In another possible embodiment, the display screen 20 is a self-luminous display screen such as an organic light-emitting diode (OLED) display screen, an active-matrix organic light-emitting diode (AMOLED) display screen, a mini organic light-emitting diode (Mini-OLED) display screen, a micro light-emitting diode (Micro-LED) display screen, a micro organic light-emitting diode (Micro-OLED) display screen, a quantum dot light emitting diodes (QLED) display screen, etc. At this time, the display screen 20 can be a rigid display screen or a flexible display screen.

[0063] The middle frame 30 is located between the display screen 20 and the rear case 40. An installation space is formed between the middle frame 30 and the rear case 40 to accommodate electronic components such as a printed circuit board (PCB), a battery, a receiver, a speaker, a camera, etc. The PCB can integrate electronic components such as the main controller, the storage unit, the antenna module, and the power management module of the electronic device, and the battery can supply power to electronic components such as the display screen 20, the circuit board, the receiver, the speaker, and the camera.

[0064] The protective layer 10 is located on the side of the display screen 20 away from the middle frame 30. The protective layer 10 is a light-transmitting structure and covers the display surface of the display screen 20 as a protective layer. In this way, the light transmitted by the display surface of the display screen 20 can pass through the protective layer 10 and be received by the user. The display surface of the display screen 20 involved in the embodiments of the present application is the side of the display screen 20 for displaying a picture to the user. The display surface of the display screen 20 and the light-emitting side of the display screen 20 are on the same side, and the back surface of the display screen 20 refers to the surface opposite to the display surface of the display screen 20. After the display screen 20 and components such as the protective layer 10 are assembled, the display module provided by the embodiments of the present application can be formed.

[0065] In some embodiments, the electronic device 1 further includes a touch panel (TP). The touch panel is used to provide a touch screen function for the electronic device 1. The touch panel can be disposed between the display screen 20 and the protective layer 10, or the touch panel can be integrated in the display screen 20. The setting schemes in the related art are applicable to the electronic device 1 provided by the embodiments of the present application.

[0066] Figure 2A An optical path diagram of a display module provided by an embodiment of the present application Figure 2B A display effect diagram of an electronic device provided by an embodiment of the present application

[0067] As Figure 2A shown, some of the light emitted from the effective display area AA of the display screen 20 can be emitted to the effective light-emitting area, but some of the light will converge at the corners of the protective layer 10 through optical paths such as refraction and reflection of light, thereby forming a visible bright edge light leakage area, which greatly affects the consumer experience. As Figure 2B shown, the light leakage area can be arranged in a circle around the effective light-emitting area. The light leakage area can also be discontinuous light spots, and the light leakage area can also be multiple light rings located outside the effective light-emitting area. The form of the light leakage area is diverse, seriously affecting the consumer experience

[0068] Figure 3 A partial schematic diagram of a protective layer provided by an embodiment of the present application

[0069] In order to improve the light leakage problem, in some embodiments, as Figure 3 shown, at the positions where light leakage is likely to occur, such as the top corners (or called C corners) of the protective layer 10, a black ink with a thickness greater than or equal to 10 μm is covered by spraying or pad printing processes to absorb the light emitted by the display screen 20, thereby improving the light leakage problem

[0070] Although the ink can improve the light leakage problem, first, the pencil hardness of the ink is relatively low (generally less than 2H), and it is easy to press and scratch the ink during the manufacturing process of the protective layer 10, resulting in ink scratches, thereby causing dot-like and line-like light leakage in the light-shielding area. Second, the ink adheres to the glass and other substrates, and to ensure the light-shielding property, the coating thickness of the ink is required to be greater than or equal to 10 μm, which will lead to poor adhesion of the ink, easy natural shedding or knocking-off, resulting in block-like light leakage. Third, when spraying or pad printing liquid ink, the fluidity of the liquid ink greatly affects the uniformity of the coating thickness, resulting in uneven light-shielding effects at local positions. Fourth, the spraying process accuracy is relatively low, and it is difficult for the ink to accurately cover the light leakage area, often causing ink overflow, local ink shortage, ink size difference, ink serrations, etc. The single-process yield is extremely low. Therefore, it is urgent to develop a coating with a thin thickness, good adhesion, uniform coating, and strong light-shielding property to improve the light leakage problem of electronic devices

[0071] In other embodiments, a metal film is provided at the positions where light leakage is likely to occur, such as the top corners of the protective layer 10, to absorb the light emitted by the display screen 20, thereby improving the light leakage problem

[0072] Although the metal film has good light-shielding property, the strong conductivity of the metal film will affect the performance of the touch screen in the electronic device 1, resulting in screen touch failure

[0073] Figure 4A A cross-sectional view of a display screen component provided by an embodiment of the present application. Figure 4B A top view of a display screen component provided by an embodiment of the present application.

[0074] An embodiment of the present application provides a display screen component 50, as Figure 4A and Figure 4B shown. The display screen component 50 includes a body 51 and a light-shielding stack 52. The display screen component 50 provided by the embodiment of the present application can be used as, for example, the protective layer 10 in the above-mentioned electronic device 1.

[0075] Exemplarily, if the display screen component 50 is a cover plate, then the body 51 can be a cover plate body, and the material of the body 51 can be, for example, glass (first-strength glass, second-strength glass, Kunlun glass), sapphire, metal, transparent ceramic, glass fiber, etc.

[0076] Alternatively, exemplarily, the display screen component 50 can also be a protective film, then the body 51 can be a protective film body. The material of the body 51 can be, for example, polypropylene (PP), polyvinyl chloride (PVC), polyethylene terephthalate (PET), thermoplastic polyurethane (TPU), etc.

[0077] The body 51 can be, for example, a 2D-shaped body, a 2.5D-shaped body, or a 3D-shaped body. The embodiment of the present application does not limit this.

[0078] The body 51 includes a first surface a1, a second surface a2, and a side peripheral surface a3. Both the first surface a1 and the second surface a2 are perpendicular to the thickness direction of the display screen component 50. The side peripheral surface a3 is located between the first surface a1 and the second surface a2 and intersects both the first surface a1 and the second surface a2. The first surface a1, the second surface a2, and the side peripheral surface a3 constitute the outer surface of the body 51.

[0079] Figures 5A - 5D A cross-sectional schematic diagram of a body provided by an embodiment of the present application.

[0080] As Figures 5A - 5C shown, the first surface a1 can be a plane. As Figure 5D shown, the first surface a1 can also be a curved surface. The first surface a1 is used as the outer surface of the display screen component 50. When the display screen component 50 is applied to the electronic device 1, the first surface a1 faces away from the display screen 20 and is the outer surface that can be touched by the user. As Figure 5A , Figure 5Band Figure 5D As shown, the second surface a2 can be a flat surface, such as Figure 5C shown. The second surface a2 can also be a non-flat surface with unevenness. The second surface a2 is used as the inner surface of the display component 50. When the display component 50 is applied to the electronic device 1, the second surface a2 faces the light-emitting side of the display screen 20 and is the inner surface that cannot be touched by the user. The body 51 schematically shown in the drawings of the embodiments of the present application is only an exemplary listing, and the shapes of the protective layers located on the light-emitting side of the display screen 20 in the related art are all applicable to the body 51 of the embodiments of the present application.

[0081] The contour of the first surface a1 can be any shape such as a circle, a square, a rectangle, etc. The contour shape of the first surface a1 is related to the shape of the screen of the electronic device 1. For example, when the electronic device 1 is a watch, the first surface a1 is circular. Or, for example, when the electronic device 1 is a mobile phone, the first surface a1 is rectangular. Or, for example, when the electronic device 1 is a mobile phone and the display component 50 is applied to the secondary screen in the electronic device 1, the first surface a1 is square.

[0082] The embodiment of the present application does not limit the shape of the side peripheral surface a3, which is related to the shape of the body 51 itself. Exemplarily, as Figure 5A shown, the body 51 can be a 2.5D stepped body. As Figure 5B shown, the body 51 can be a 2.5D flat body. As Figure 5C shown, the body 51 can be a 3D arc-shaped body. As Figure 5D shown, the body 51 can be a 2.5D bridge-shaped body. The shape of the body 51 is different, and the shape of the side peripheral surface a3 is also different. Figures 5A - 5D Regarding the cross-sectional shape of the side peripheral surface a3 outlined by the dotted coil, the side peripheral surface a3 should be arranged around the contours of the first surface a1 and the second surface a2 for one circle.

[0083] In some embodiments, as Figures 5A - 5C shown, the side peripheral surface a3 includes a first part a31, and the first part a31 intersects with the first surface a1. Exemplarily, the first part a31 intersects with the first surface a1 to form an obtuse angle. The first part a31 can also be understood as the surface chamfering part commonly referred to in the art. Or it can be understood that the first part a31 is the part of the side peripheral surface a3 closest to the first surface a1. Of course, as Figure 5D shown, the side peripheral surface a3 may not include the first part a31, and in this case, the first part a31 is not the part of the side peripheral surface a3 closest to the first surface a1.

[0084] In some embodiments, as Figures 5A - 5DAs shown, the side circumferential surface a further includes a second part a32, and the second part a32 intersects with the second surface a2. For example, the intersection of the second part a32 and the second surface a2 forms an obtuse angle. The second part a32 can also be understood as the bottom chamfer part commonly referred to in the art. Or it can be understood that the second part a32 is the part of the side circumferential surface a3 closest to the second surface a2. Of course, the side circumferential surface a3 may not include the second part a32, in which case the second part a32 is not the part of the side circumferential surface a3 closest to the second surface a2.

[0085] In some embodiments, as Figures 5A - 5D shown, the side circumferential surface a3 further includes a third part a33, and the third part a33 is parallel to the thickness direction of the display screen component 50. As Figures 5B - 5D shown, only one section of the third part a33 may be included in the side circumferential surface a3, and the third part a33 can also be understood as the side wall straight body part commonly referred to in the art. As Figure 5A shown, multiple sections of the third part a33 may also be included in the side circumferential surface a3. The third part a33 adjacent to the first part a31 can be understood as the side wall straight body part commonly referred to in the art, and the third part a33 adjacent to the second part a32 can be understood as the convex platform side wall in the art. For example, the third part a33 is located between the first part a31 and the second part a32, and along the thickness direction of the display screen component 50, both sides of the third part a33 can be connected to the first part a31 and the second part a32 respectively (including direct connection and indirect connection).

[0086] The "parallel" referred to in the embodiments of the present application is not limited to absolute parallel, and approximate parallel within the process error range also belongs to the protection scope of the embodiments of the present application. For example, deviations within the range of ±10° are all considered parallel in the embodiments of the present application.

[0087] The side circumferential surface a3 in the embodiments of the present application is not limited to only including the above-mentioned first part a31, second part a32 and third part a33. As Figure 5A shown, the side circumferential surface a3 may further include other parts. In the embodiments of the present application, the surfaces in the same plane of the side circumferential surface a3 can be divided into the same part, and a corner will be formed between two adjacent part surfaces.

[0088] In some embodiments, as Figure 4A shown, at least part of the area of the side circumferential surface a3 is covered with a light-shielding laminate 52. Figure 4A Taking a section of the area of the side circumferential surface a3 covered with a light-shielding laminate 52 as an example for illustration, multiple sections of the area of the side circumferential surface a3 may also be covered with a light-shielding laminate 52, and the side circumferential surface a3 may also be entirely covered with a light-shielding laminate 52. For example, as Figure 4AAs shown, in the thickness direction of the display screen component 50, only a partial area of the side peripheral surface a3 is covered with the light-shielding laminate 52. As Figure 4B shown, in the circumferential direction of the display screen component 50, the light-shielding laminate 52 is disposed around the periphery of the main body 51 for one circle.

[0089] Exemplarily, the light-shielding laminate 52 covers a part of the side peripheral surface a3.

[0090] For example, the light-shielding laminate 52 covers part or all of the first part a31. Or, for example, the light-shielding laminate 52 covers part or all of the second part a32. Or, for example, the light-shielding laminate 52 covers part or all of the third part a33.

[0091] Exemplarily, the light-shielding laminate 52 covers multiple parts of the side peripheral surface a3.

[0092] Figure 6 It is a schematic structural diagram of a display screen component provided by an embodiment of the present application.

[0093] For example, as Figure 6 shown, the light-shielding laminate 52 covers part or all of the first part a31, and the light-shielding laminate 52 also covers part or all of the third part a33. Figure 6 In Figure 6 it is schematically shown taking that the light-shielding laminate 52 covers all of the first part a31 and part of the third part a33 adjacent to the first part a31 as an example,

[0094] Or, for example, the light-shielding laminate 52 covers part or all of the first part a31, and the light-shielding laminate 52 also covers part or all of the second part a32. Or, for example, the light-shielding laminate 52 covers part or all of the third part a33, and the light-shielding laminate 52 also covers part or all of the second part a32. Or, for example, the light-shielding laminate 52 covers part or all of the first part a31, the light-shielding laminate 52 also covers part or all of the second part a32, and the light-shielding laminate 52 also covers part or all of the third part a33. Or, for example, the light-shielding laminate 52 covers the entire side peripheral surface a3.

[0095] Figure 7A It is a schematic structural diagram of a display screen component provided by an embodiment of the present application, Figure 7B It is a light transmission effect diagram of a display screen component provided by an embodiment of the present application, Figure 7C It is a light transmittance curve diagram of a display screen component provided by an embodiment of the present application.

[0096] In some embodiments, as Figure 7AAs shown, the light-shielding laminate 52 includes a connection layer 521 and a first light-shielding layer 522; the connection layer 521 is located between the first light-shielding layer 522 and the body 51, and the connection layer 521 is connected to the body 51 by chemical bonding.

[0097] Exemplarily, the connection layer 521 covers the surface of the body 51, and the connection layer 521 is in direct contact with the body 51.

[0098] For the display screen component 50 provided by the embodiment of the present application, the light-leakage area in the side peripheral surface a3 of the body 51 is covered by the light-shielding laminate 52, so that light cannot be emitted from the side peripheral surface a3. After the display screen component 50 is applied to the electronic device 1, the light-leakage problem of the electronic device 1 can be improved. On this basis, the connection layer 521 in the light-shielding laminate 52 is connected to the body 51 by chemical bonding. Compared with the structure in the related art where the ink is physically attached to the body, the chemical bonding connection in the embodiment of the present application can greatly improve the adhesion of the light-shielding laminate 52 to the body 51. Thereby effectively improving the dot-like, line-like, and block-like light-leakage phenomena caused by poor adhesion of the display screen component 50.

[0099] In some embodiments, the material of the connection layer 521 includes silicon oxide and / or silicon nitride.

[0100] Both silicon oxide and silicon nitride belong to materials with high pencil hardness. Using silicon oxide or silicon nitride as the material of the connection layer 521 can improve the hardness of the connection layer 521, and can effectively reduce the occurrence of indentation, scratching, and damage of the light-shielding laminate 52, as well as the dot-like, line-like, and surface-like light-leakage phenomena caused by the damage.

[0101] In some embodiments, the thickness of the connection layer 521 ranges from 20 nm to 100 nm. For example, the thickness of the connection layer 521 is 20 nm, 30 nm, 40 nm, 50 nm, 60 nm, 70 nm, 80 nm, 90 nm, 100 nm, etc.

[0102] The thickness of the connection layer 521 is set to be 20 nm to 100 nm. On the basis of realizing the chemical bonding connection between the connection layer 521 and the body 51, the thickness of the connection layer 521 is minimized to further improve the adhesion of the light-shielding laminate 52.

[0103] In some embodiments, the material of the first light-shielding layer 522 includes carbon or metal oxide. For example, the material of the first light-shielding layer 522 includes C60, diamond, graphite, titanium oxide, chromium oxide, indium oxide, tin oxide, etc.

[0104] Both carbon and metal oxides belong to materials with high pencil hardness. Using carbon or metal oxides as the material of the connection layer 521 can improve the hardness of the first light-shielding layer 522, effectively reducing the occurrence of indentation, scratching, and damage to the light-shielding stack 52, as well as the punctate, linear, and planar light leakage phenomena caused by damage.

[0105] In some embodiments, the thickness of the first light-shielding layer 522 ranges from 100 nm to 950 nm. For example, the thickness of the first light-shielding layer 522 is 100 nm, 200 nm, 300 nm, 400 nm, 500 nm, 600 nm, 700 nm, 800 nm, 900 nm, 950 nm, etc.

[0106] The thickness of the first light-shielding layer 522 is set within the range of 100 nm to 950 nm. On the basis of ensuring the light-shielding effect, the thickness of the first light-shielding layer 522 is minimized as much as possible to further improve the adhesion of the light-shielding stack 52.

[0107] In some embodiments, the connection layer 521 and / or the first light-shielding layer 522 are formed by gas-phase deposition processes such as physical vapor deposition (PVD), chemical vapor deposition (CVD), and plasma chemical vapor deposition (PCVD).

[0108] The coating equipment used in the gas-phase deposition process is equipped with a quartz crystal oscillator that can regulate the film thickness at the micron level, and the film thickness of the gas-phase formed film is uniform. Moreover, the gas-phase deposition process has high precision, can accurately cover the area to be light-shielded, and has a high production yield. Through experiments, it is found that the formed light-shielding stack 52 can achieve the effect of uniform light-shielding in a complete circle, and the yield of the display component 50 can be increased by more than 30%, effectively reducing the production cost.

[0109] Exemplarily, as Figure 7A shown, the total thickness of the light-shielding stack 52 is 460 nm, and the light-shielding stack 52 covers the first part a31 (the chamfered surface part) of the side circumferential surface a3. The material of the connection layer 521 is silicon oxide, and the thickness of the connection layer 521 is 60 nm. The material of the first light-shielding layer 522 is carbon, and the thickness of the first light-shielding layer 522 is 400 nm. The body 51 is a glass cover plate body.

[0110] The surface material of the light-shielding laminate 52 is carbon, and its appearance is bluish-black. The total thickness of the light-shielding laminate 52 is 460 nm, which is more than 20 times lower than that of the 10-μm ink layer. The reduction in the thickness of the light-shielding laminate 52 can further improve the overall adhesion of the light-shielding laminate 52. After the light-shielding laminate 52 is precisely deposited on the first part a31 through a vapor deposition process, it is placed on the lit display screen 20 to check for light leakage in the first part a31. As Figure 7B shown, there is no light leakage phenomenon of a uniform bright edge around the whole circle. As Figure 7C shown, it is found through testing that the light transmittance at 550 nm is about 26.781%, and the optical density (OD) value is calculated to be 0.572. The light-shielding laminate 52 has a good light-shielding effect. And it is found through testing that the insulation impedance of the light-shielding laminate 52 is about 1.964 MΩ, which can reduce the electrical influence of the light-shielding laminate 52 on other conductive structures in the electronic device 1. Among them, the light transmittance at 550 nm refers to the light transmittance of light with a wavelength of 550 nm.

[0111] Using an energy dispersive spectrometer (EDS) to perform a depth analysis on the display screen component 50 at a position less than 2 μm deep from the side of the first light-shielding layer 522 towards the body 51 side. As shown in Table 1, it is found that the proportion of carbon (C), oxygen (O), and silicon (Si) elements is greater than or equal to 92%, among which the C content proportion is greater than 50%, and the content ratio of Si to O elements is about 1:2. The total proportion of the remaining sodium (Na), aluminum (Al), and potassium (K) elements is less than or equal to 8%, which is considered to be the glass composition. The pencil hardness of the light-shielding laminate 52 and the ink coating are tested respectively. It is found that the pencil hardness of the light-shielding laminate 52 is increased to above 9H. Compared with the 2H of the ink coating, the pencil hardness of the light-shielding laminate 52 can be increased by more than 5 times. The boiled hundred-grid test of the light-shielding laminate 52 can meet the 5B requirement. Compared with the 3B of the ink coating, the adhesion of the light-shielding laminate 52 is improved by two grades. The eraser friction of the light-shielding laminate 52 can meet the requirement of no peeling off after 5000 times. Compared with the slight peeling off after 2000 times of friction of the ink coating, the eraser friction adhesion of the light-shielding laminate 52 is increased by more than 2 times. The steel wool friction of the light-shielding laminate 52 can meet the requirement of no peeling off after 5000 times. Compared with the slight peeling off after 250 times of friction of the ink coating, the steel wool friction adhesion of the light-shielding laminate 52 is increased by more than 20 times. In summary, the light-shielding laminate 52 has achieved a great improvement in terms of pencil hardness and adhesion compared with the ink coating, and can effectively improve the dot-like, line-like, and block-like light leakage phenomena that occur in the display screen component 50 due to poor operation in the post-process.

[0112] Table 1 EDS analysis

[0113]

[0114] Figure 8AA schematic structural diagram of a display screen component provided by an embodiment of the present application. Figure 8B A transmittance curve graph of a display screen component provided by an embodiment of the present application.

[0115] In some embodiments, as Figure 8A shown, the light-shielding laminate 52 further includes a second light-shielding layer 523, the second light-shielding layer 523 is located on the side of the connection layer 521 away from the main body 51, and the insulation impedance of the second light-shielding layer 523 is greater than that of the first light-shielding layer 522.

[0116] By adding the second light-shielding layer 523 with a large insulation impedance in the light-shielding laminate 52, on the basis of ensuring the light-shielding effect of the light-shielding laminate 52, the insulation impedance of the light-shielding laminate 52 can be increased to reduce the electrical interference brought by the light-shielding laminate 52 to other conductive structures such as the touch screen in the electronic device 1, and improve the performance of the electronic device 1.

[0117] In some embodiments, the material of the second light-shielding layer 523 includes silicon hydride or silicon.

[0118] Silicon hydride or silicon has a higher refractive index than carbon, which will cause a certain sidewall reflection phenomenon to change the appearance structure of the light-shielding laminate 52 to meet different requirements.

[0119] For example, as Figure 8A shown, the second light-shielding layer 523 is located between the first light-shielding layer 522 and the connection layer 521. In this way, the first light-shielding layer 522 serves as the appearance color of the light-shielding laminate 52, and the appearance of the light-shielding laminate 52 can be cyan-black.

[0120] Or, for example, the first light-shielding layer 522 is located between the second light-shielding layer 523 and the connection layer 521. In this way, the second light-shielding layer 523 serves as the appearance color of the light-shielding laminate 52, and the appearance of the light-shielding laminate 52 can be bright-colored.

[0121] In some embodiments, the thickness of the second light-shielding layer 523 ranges from 1 nm to 300 nm. For example, the thickness of the second light-shielding layer 523 is 1 nm, 20 nm, 50 nm, 70 nm, 100 nm, 120 nm, 150 nm, 170 nm, 200 nm, 220 nm, 250 nm, 270 nm, 300 nm, etc.

[0122] The thickness of the second light-shielding layer 523 is set at 1 nm - 300 nm. On the basis of ensuring the light-shielding effect, the thickness of the second light-shielding layer 523 is minimized to further improve the adhesion of the light-shielding laminate 52.

[0123] In some embodiments, a second light-shielding layer 523 is formed by a vapor deposition process such as PVD, CVD, or PCVD. When forming a film by a vapor deposition process, the film layer structure is diversified, the thickness can be controlled at the micron level, the film thickness uniformity is good, the film layer is dense, and the adhesion is strong, resulting in a high yield of the display screen component 50.

[0124] For example, as Figure 8A shown, the total thickness of the light-shielding stack 52 is 520 nm, and the light-shielding stack 52 covers the first part a31 (the chamfered part of the side surface) of the side circumferential surface a3. The material of the connection layer 521 is silicon oxide, and the thickness of the connection layer 521 is 20 nm. The material of the first light-shielding layer 522 is carbon, and the thickness of the first light-shielding layer 522 is 200 nm. The material of the second light-shielding layer 523 is silicon hydride, and the thickness of the second light-shielding layer 523 is 300 nm. The body 51 is a glass cover plate body.

[0125] The surface material of the light-shielding stack 52 is carbon, and the appearance is bright gray. The total thickness of the light-shielding stack 52 is 520 nm. Compared with a 10-μm ink layer, the total thickness is reduced by more than 19 times. The reduction in the thickness of the light-shielding stack 52 can further improve the overall adhesion of the light-shielding stack 52. After the light-shielding stack 52 is accurately deposited on the first part a31 by a vapor deposition process, it is placed on the lit display screen 20 to check for light leakage in the first part a31. There is no phenomenon of uniform light leakage around the entire circle. As Figure 8B shown, it is found through testing that the light transmittance at 550 nm is about 24.718%, and the OD value is calculated to be 0.607. The light-shielding stack 52 has a good light-shielding effect. And it is found through testing that the insulation impedance of the light-shielding stack 52 is about 7.0 GΩ, which can greatly reduce the electrical influence of the light-shielding stack 52 on other conductive structures in the electronic device 1.

[0126] Figure 9A FIG. is a schematic structural diagram of a display screen component provided by an embodiment of the present application, Figure 9B FIG. is a light transmittance curve diagram of a display screen component provided by an embodiment of the present application.

[0127] In some embodiments, as Figure 9A shown, the light-shielding stack 52 further includes a light-adjusting layer 524, and the light-adjusting layer 524 is located between the connection layer 521 and the first light-shielding layer 522. The refractive index of the light-adjusting layer 524 is greater than the refractive index of the connection layer 521, and the refractive index of the light-adjusting layer 524 is also less than the refractive index of the first light-shielding layer 522.

[0128] For example, as Figure 9A shown, the light-adjusting layer 524 is located between the second light-shielding layer 523 and the connection layer 521. Or, for example, the light-adjusting layer 524 is located between the second light-shielding layer 523 and the first light-shielding layer 522.

[0129] In the embodiments of the present application, by adding a light-adjusting layer 524 to the light-shielding stack 52, the overall refractive index of the light-shielding stack 52 can be adjusted to adjust the appearance color of the light-shielding stack 52 to meet different usage requirements. At the same time, the problem of light reflection of the light-shielding stack 52 can also be improved.

[0130] In some embodiments, the refractive index of the light-adjusting layer 524 ranges from 1.6 to 1.8. For example, the refractive index of the light-adjusting layer 524 is 1.6, 1.65, 1.7, 1.75, 1.8.

[0131] Controlling the refractive index of the light-adjusting layer 524 within the range of 1.6 to 1.8 can preferably eliminate the problem of light reflection of the light-shielding stack 52, making the light-shielding stack 52 present a darker color (such as black).

[0132] Exemplarily, the material of the light-adjusting layer 524 includes a silicon oxynitride layer or aluminum oxide. The refractive index of the silicon oxynitride layer or aluminum oxide can relatively easily reach the required refractive index and the cost is low.

[0133] In some embodiments, the thickness of the light-adjusting layer 524 ranges from 1 nm to 100 nm. For example, the thickness of the light-adjusting layer 524 is 1 nm, 10 nm, 20 nm, 30 nm, 40 nm, 50 nm, 60 nm, 70 nm, 80 nm, 90 nm, 100 nm, etc.

[0134] Setting the thickness of the light-adjusting layer 524 within the range of 1 nm to 100 nm can, on the basis of ensuring the adjustment of optical parameters, minimize the thickness of the light-adjusting layer 524 to further improve the adhesion of the light-shielding stack 52.

[0135] In some embodiments, the light-adjusting layer 524 is formed by a vapor deposition process such as PVD, CVD, or PCVD. When forming a film by the vapor deposition process, the film layer structure is diversified, the thickness can be controlled at the micron level, the film thickness uniformity is good, the film layer is dense, the adhesion is strong, and the yield rate of the display component 50 is high.

[0136] Exemplarily, as Figure 9A shown, the total thickness of the light-shielding stack 52 is 680 nm, and the light-shielding stack 52 covers the first part a31 (the chamfered surface part) of the side peripheral surface a3. The material of the connecting layer 521 is silicon oxide, and the thickness of the connecting layer 521 is 20 nm. The material of the first light-shielding layer 522 is carbon, and the thickness of the first light-shielding layer 522 is 300 nm. The material of the second light-shielding layer 523 is silicon hydride, and the thickness of the second light-shielding layer 523 is 300 nm. The material of the light-adjusting layer 524 is silicon oxynitride, and the thickness of the light-adjusting layer 524 is 60 nm. The body 51 is a glass cover plate body.

[0137] The surface material of the light-shielding laminate 52 is carbon, and its appearance is black. The total thickness of the light-shielding laminate 52 is 680 nm. Compared with the 10-μm ink layer, the total thickness is reduced by more than 14 times. The reduction in the thickness of the light-shielding laminate 52 can further improve the overall adhesion of the light-shielding laminate 52. After accurately depositing the light-shielding laminate 52 on the first part a31 through a vapor deposition process, it is placed on the lit display screen 20 to check for light leakage in the first part a31. There is no light leakage with a uniform bright edge around the whole circle, and there is no reflective rainbow pattern at the step position. As Figure 9B shown, the test found that the light transmittance at 550 nm is about 17.939%, and the OD value is calculated to be 0.746. The light-shielding laminate 52 has a good light-shielding effect. And through testing, it is found that the insulation impedance of the light-shielding laminate 52 is about 4.7 GΩ, which can greatly reduce the electrical influence of the light-shielding laminate 52 on other conductive structures in the electronic device 1.

[0138] In some embodiments, the overall thickness of the light-shielding laminate 52 ranges from 200 nm to 1000 nm. For example, the thickness of the light-shielding laminate 52 is 250 nm, 270 nm, 300 nm, 320 nm, 350 nm, 370 nm, 400 nm, 450 nm, 500 nm, 550 nm, 600 nm, 650 nm, 700 nm, 750 nm, 800 nm, 850 nm, 900 nm, 950 nm, 1000 nm, etc.

[0139] By limiting the overall thickness of the light-shielding laminate 52 within 1000 nm, the thinner light-shielding laminate 52 can further improve the adhesion between the light-shielding laminate 52 and the body 51.

[0140] In some embodiments, the overall optical density of the light-shielding laminate 52 is greater than or equal to 0.4. For example, the optical density of the light-shielding laminate 52 is 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, etc.

[0141] By limiting the optical density of the light-shielding laminate 52 to be greater than or equal to 0.4, the light-shielding laminate 52 can have a good light-shielding effect.

[0142] In some embodiments, the 550-nm transmittance of the overall light-shielding laminate 52 ranges from 0% to 30%. For example, the 550-nm transmittance of the light-shielding laminate 52 is 30%, 25%, 20%, 15%, 10%, 5%, 0% (opaque).

[0143] By limiting the 550-nm transmittance of the light-shielding laminate 52 to be less than 30%, the light-shielding laminate 52 can have a good light-shielding effect.

[0144] In some embodiments, the overall insulation impedance of the light-shielding stack 52 is greater than or equal to 1 MΩ. For example, the insulation impedance of the light-shielding stack 52 is 1 MΩ, 10 MΩ, 100 MΩ, 200 MΩ, 300 MΩ, 400 MΩ, 500 MΩ, 600 MΩ, 700 MΩ, 800 MΩ, 900 MΩ, 1 GΩ, 2 GΩ, 3 GΩ, 4 GΩ, 5 GΩ, 10 GΩ, 15 GΩ, 20 GΩ, etc.

[0145] By setting the insulation impedance of the light-shielding stack 52 above 1 MΩ, the electrical interference of the light-shielding stack 52 on conductive structures such as the touch screen in the electronic device 1 can be almost eliminated.

[0146] Based on the light-shielding stack 52 provided in the embodiments of the present application, by adjusting the structure of the light-shielding stack 52, the appearance of the light-shielding stack 52 can present colors such as cyan-black, black, bright black, gray, bright gray, cyan-gray, etc. Characteristic peaks such as Si-Si, Si-C, and Si-O can be obtained in the light-shielding stack 52 by methods such as fourier transform infrared (FTIR) and nuclear magnetic resonance spectroscopy (NMR). Minor characteristic peaks should include Si-H (hydrogen), Si-N (nitrogen), C-H, etc. Elements such as Si, C, O, H, and N can be obtained in the light-shielding stack 52 by methods such as EDS, X-ray photoelectron spectroscopy (XPS), mass spectrometry, or atomic absorption spectroscopy. The thickness of each film layer can be measured by methods such as precision profile scanning method (step film thickness measuring instrument) and electron microscopic imaging method.

[0147] The display screen component 50 provided in the embodiments of the present application can be applied to the display module provided in the embodiments of the present application. The display screen component 50 is located on the light-emitting side of the display screen 20, and the second surface a2 of the display screen component 50 faces the display screen 20. The display screen component 50 can exist in the form of a cover plate, and the display screen component 50 can also exist in the form of a protective film. The embodiments of the present application do not make any limitations in this regard.

[0148] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A display screen component, characterized in that, Comprising: A main body, the main body includes a first surface, a second surface and a side peripheral surface. The first surface is used as the outer surface of the display screen component, the second surface is used as the inner surface of the display screen component, and the side peripheral surface is located between the first surface and the second surface and intersects both the first surface and the second surface; A light-shielding laminate that covers at least a partial area of the side peripheral surface; Wherein, the light-shielding laminate includes a connection layer and a first light-shielding layer; the connection layer is located between the first light-shielding layer and the main body, and the connection layer is connected to the main body by chemical bonding.

2. The display screen component according to claim 1, characterized in that, The light-shielding laminate further includes a second light-shielding layer; the second light-shielding layer is located on the side away from the main body of the connection layer, and the insulation impedance of the second light-shielding layer is greater than the insulation impedance of the first light-shielding layer.

3. The display screen component according to claim 2, characterized in that, The second light-shielding layer is located between the first light-shielding layer and the connection layer.

4. The display screen component according to any one of claims 1 - 3, characterized in that, The light-shielding laminate further includes a light-adjusting layer; the light-adjusting layer is located between the connection layer and the first light-shielding layer, and the refractive index of the light-adjusting layer is greater than the refractive index of the connection layer and less than the refractive index of the first light-shielding layer.

5. The display screen component according to any one of claims 1 - 4, characterized in that, The light-shielding laminate is prepared by a chemical vapor deposition process.

6. The display screen component according to any one of claims 1 - 5, characterized in that, The side peripheral surface includes a first part that intersects the first surface; the light-shielding laminate covers the first part.

7. The display screen component according to claim 6, characterized in that, The side peripheral surface further includes a second part that intersects the second surface, and the light-shielding laminate covers the second part.

8. The display screen component according to claim 6 or 7, characterized in that, The side peripheral surface further includes a third part that is parallel to the thickness direction of the display screen component, and the light-shielding laminate covers the third part.

9. The display screen component according to any one of claims 1 - 8, characterized in that, The thickness of the light-shielding laminate ranges from 200 nm to 1000 nm.

10. The display screen component according to any one of claims 1 - 9, characterized in that, The optical density of the light-shielding laminate is greater than or equal to 0.

4.

11. The display screen component according to any one of claims 1 - 10, characterized in that, The transmittance of the light-shielding laminate at 550 nm ranges from 0% to 30%.

12. The display screen component according to any one of claims 1 - 11, characterized in that, The insulation impedance of the light-shielding laminate is greater than or equal to 1 MΩ.

13. The display screen component according to any one of claims 1 - 12, characterized in that, The material of the connection layer includes silicon oxide or silicon nitride.

14. The display screen component according to any one of claims 1 - 13, characterized in that, The thickness of the connection layer ranges from 20 nm to 100 nm.

15. The display screen component according to any one of claims 1 - 14, characterized in that, The material of the first light-shielding layer includes carbon or metal oxide.

16. The display screen component according to any one of claims 1 - 15, characterized in that, The thickness of the first light-shielding layer ranges from 100 nm to 950 nm.

17. The display screen component according to any one of claims 2 - 16, characterized in that, The material of the second light-shielding layer includes silicon hydride or silicon.

18. The display screen component according to any one of claims 2-17, characterized in that, The thickness of the second light-shielding layer ranges from 1 nm to 300 nm.

19. The display screen component according to any one of claims 3-18, characterized in that, The material of the light-adjusting layer includes a silicon oxynitride layer and aluminum oxide.

20. The display screen component according to any one of claims 3-19, characterized in that, The refractive index of the light-adjusting layer ranges from 1.6 to 1.

8.

21. The display screen component according to any one of claims 3-20, characterized in that, The thickness of the light-adjusting layer ranges from 1 nm to 100 nm.

22. A display module, characterized in that, The display module includes a display screen component and a display screen. The display screen component includes the display screen component according to any one of claims 1-21, and the second surface of the display screen component faces the light-emitting side of the display screen.

23. An electronic device, characterized in that, The electronic device includes a display module and a rear case. The display module includes the display module according to claim 22, and the rear case is located on the back of the display module.

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