Under-screen camera integrated display system and brush palm device

Abstract

The under-screen camera integrated display system is characterized by comprising a display screen unit used for displaying an image; the under-screen camera module is arranged below the display screen unit and is used for acquiring a signal generation image; and the transparent light guide plate is arranged in the display screen unit, is positioned in an area above the under-screen camera module, and is used for guiding ambient light to penetrate through. Through the arrangement of the transparent light guide plate and the under-screen camera module, the high-quality imaging effect can be achieved while the integrity of the display screen is kept.

Description

Technical Field

[0001] The utility model relates to the technical field of under-screen imaging, and specifically, to an under-screen camera integrated display system and a palm-sweeping device. Background Art

[0002] Under-screen display technology is a technology that integrates a display under the screen to achieve a borderless full-screen experience.

[0003] The core of under-screen display technology lies in improving the utilization rate and aesthetics of the screen without sacrificing display effects and functions. To achieve this goal, multiple technical problems such as screen transmittance, pixel density, and imaging quality need to be solved. The following will introduce each aspect of under-screen display technology in detail:

[0004] Under-screen fingerprint recognition technology (Under Display, i.e., UD): This is one of the most common applications of under-screen technology. By embedding a fingerprint image sensor under the screen, users can complete operations such as unlocking and payment by simply touching the screen. Currently, optical and ultrasonic are two mainstream under-screen fingerprint recognition technologies. The optical type recognizes by the screen emitting light and reflecting the fingerprint image, while the ultrasonic type penetrates the screen by emitting sound waves to precisely capture the texture of the fingerprint. Ultrasonic technology has gradually become the mainstream due to its higher recognition accuracy and speed.

[0005] Under-screen camera technology (Camera Under Panel, i.e., CUP): The goal of this technology is to hide the front camera under the screen, making the "forehead" of the mobile phone completely disappear. Under-screen cameras need to solve the problem of difficult light transmission caused by high screen pixel density. By adjusting the screen pixel arrangement and material selection, the light transmittance can be improved. For example, using transparent oxide materials instead of traditional silicon materials can significantly improve the light transmission efficiency. In addition, the application of AI image processing technology is also an important means to optimize the shooting effect. By real-time processing of the captured pictures, the image quality problems caused by insufficient light can be effectively improved.

[0006] Under-screen biometric technology: In addition to fingerprint recognition, face recognition is also an important biometric recognition method. By embedding an infrared camera and a dot matrix projector under the screen, 3D modeling and face recognition can be achieved. Apple's Face ID is realized through this technology. With the continuous progress of technology, more innovative under-screen biometric methods may emerge in the future, such as iris recognition and gesture recognition.

[0007] Under-screen environmental perception technology: Modern smartphones not only need to achieve display and photography functions, but also need to have environmental perception capabilities. For example, under-screen ambient light image sensors, distance image sensors, etc. can achieve automatic screen brightness adjustment and power-saving modes. These technologies are realized by embedding micro image sensors under the screen, and have little impact on the screen display effect.

[0008] With the development of full-screen technology, users have higher requirements for the integrity and visual experience of the device screen. Under-screen imaging technology has become the key to realizing the full-screen design, but there are still challenges in imaging quality, screen display effect, and their collaborative work in the existing technologies.

[0009] The disclosure of the above background technical content is only used to assist in understanding the inventive concept and technical solution of the present utility model, and it does not necessarily belong to the prior art of this patent application. Without clear evidence indicating that the above content was publicly available on the filing date of this patent application, the above background technology should not be used to evaluate the novelty and inventiveness of this application. Summary of the Utility Model

[0010] Therefore, the present utility model can achieve high-quality imaging effects while maintaining the integrity of the display screen by providing a transparent light guide plate and an under-screen camera module.

[0011] In a first aspect, the present utility model provides an under-screen camera integrated display system, which is characterized by comprising:

[0012] A display screen unit for displaying images;

[0013] An under-screen camera module disposed under the display screen unit for obtaining signals to generate images;

[0014] A transparent light guide plate disposed in the display screen unit and in the area above the under-screen camera module for guiding ambient light to pass through.

[0015] Optionally, in the under-screen camera integrated display system, the transparent light guide plate comprises:

[0016] A microlens array for adjusting the angle of the transmitted light and reducing interference with the under-screen camera module.

[0017] Optionally, in the under-screen camera integrated display system, the microlens array comprises:

[0018] A plurality of lens units for optically processing the transmitted light;

[0019] A substrate for fixing the lens units.

[0020] Optionally, in the described under-screen camera integrated display system, the transparent light guide plate includes:

[0021] A grating structure for controlling the propagation path of light and improving the imaging quality.

[0022] Optionally, in the described under-screen camera integrated display system, the transparent light guide plate further includes:

[0023] A microlens array for adjusting the angle of the transmitted light and reducing interference with the under-screen camera module;

[0024] The grating structure is etched on the substrate of the microlens array.

[0025] Optionally, in the described under-screen camera integrated display system, the transparent light guide plate further includes:

[0026] A microlens array for adjusting the angle of the transmitted light and reducing interference with the under-screen camera module;

[0027] The microlens array and the grating structure are two independent structures, and the spacing therebetween does not exceed 3 mm.

[0028] Optionally, in the described under-screen camera integrated display system, the under-screen camera module includes:

[0029] An image sensor with high sensitivity for generating an image signal according to the optical signal;

[0030] A micro lens located in front of the image sensor for guiding light onto the image sensor.

[0031] Optionally, in the described under-screen camera integrated display system, it further includes:

[0032] An image processing unit connected to the under-screen camera module for receiving and processing the image signal.

[0033] Optionally, in the described under-screen camera integrated display system, the display screen unit includes a display unit and a substrate; the transparent light guide plate is located inside the substrate and penetrates the substrate so that light can pass through the display screen unit.

[0034] In a second aspect, the present utility model provides a palm-sweeping device, which is characterized by including the under-screen camera integrated display system described in any one of the foregoing items.

[0035] Compared with the prior art, the present utility model has the following beneficial effects:

[0036] The under-screen camera module in this utility model is completely hidden under the display screen, achieving a truly full-screen design; the design of the transparent light guide module and the under-screen camera module ensures high-quality imaging effects; it provides users with a shooting experience without visual interference and high-quality image capture. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of this utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the provided drawings. By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, objectives, and advantages of this utility model will become more obvious:

[0038] Figure 1 It is a schematic structural diagram of an under-screen camera integrated display system in an embodiment of this utility model;

[0039] Figure 2 It is a schematic structural diagram of a transparent light guide plate in an embodiment of this utility model;

[0040] Figure 3 It is a schematic structural diagram of a microlens array in an embodiment of this utility model;

[0041] Figure 4 It is a schematic structural diagram of another transparent light guide plate in an embodiment of this utility model;

[0042] Figure 5 It is a schematic structural diagram of another transparent light guide plate in an embodiment of this utility model;

[0043] Figure 6 It is a schematic structural diagram of another transparent light guide plate in an embodiment of this utility model;

[0044] Figure 7 It is a schematic structural diagram of an under-screen camera module in an embodiment of this utility model;

[0045] Figure 8 It is a schematic structural diagram of another under-screen camera integrated display system in an embodiment of this utility model;

[0046] Figure 9 It is a schematic structural diagram of another under-screen camera integrated display system in an embodiment of this utility model;

[0047] Figure 10 It is a schematic structural diagram of another under-screen camera integrated display system in an embodiment of this utility model.

[0048] 1 - Display screen unit;

[0049] 2 - Transparent light guide plate;

[0050] 3 - Under - screen camera module;

[0051] 4 - Microlens array;

[0052] 5 - Grating structure;

[0053] 6 - Lens unit;

[0054] 7 - Substrate;

[0055] 8 - Image sensor;

[0056] 9 - Micro lens;

[0057] 10 - Image processing unit;

[0058] 11 - Cooperative control unit;

[0059] 12 - Display unit;

[0060] 13 - Substrate; Detailed implementation mode

[0061] The present utility model will be described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present utility model, but do not limit the present utility model in any form. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made. These all belong to the protection scope of the present utility model.

[0062] The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the present utility model and the above - mentioned drawings are used to distinguish similar objects, and do not necessarily need to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances, so that the embodiments of the present utility model described here, for example, can be implemented in an order other than those illustrated or described here. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non - exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0063] An under - screen camera integrated display system provided by an embodiment of the present utility model aims to solve the problems existing in the prior art.

[0064] The following specific embodiments are used to describe in detail the technical solution of the utility model and how the technical solution of the present application solves the above technical problems. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the utility model will be described below in conjunction with the accompanying drawings.

[0065] The utility model can achieve high-quality imaging effects while maintaining the integrity of the display screen by providing a transparent light guide plate and an under-screen camera module.

[0066] Figure 1 Schematic diagram of the structure of an under-screen camera integrated display system in an embodiment of the utility model. Figure 1 As shown, an under-screen camera integrated display system in an embodiment of the utility model includes:

[0067] The display screen unit 1 is used for displaying images.

[0068] Specifically, the display unit, as one of the core components of the system, is located in the center of the entire structure. It is responsible for displaying images for users to watch, and usually adopts advanced display technology such as LCD (liquid crystal display), OLED (organic light emitting diode display), etc. The display unit is fixed in the frame of the system to ensure stability and flatness to ensure the clarity and quality of the image. The display unit can be a transparent display or a traditional display.

[0069] The under-screen camera module 3 is arranged below the display screen unit and is used to acquire signals to generate images.

[0070] Specifically, the under-screen camera module is set below the display unit, closely fitting with the display unit but maintaining a certain degree of isolation. It uses advanced imaging technologies, such as microlens arrays, light field cameras, etc., to generate and capture images without affecting the normal operation of the display unit. The under-screen camera module adopts a miniaturized design to reduce the impact on the display unit; it is equipped with a high-sensitivity sensor that can capture clear images in low-light environments; it can also restore images through advanced technologies such as machine learning to improve the problem of image quality degradation caused by screen occlusion.

[0071] A transparent light guide plate 2 is arranged in the display screen unit and located in the area above the under-screen camera module, and is used to guide ambient light to pass through.

[0072] Specifically, the main function of the transparent light guide plate is to guide ambient light through the screen to ensure that the camera can receive enough light for shooting. The transparent light guide plate is made of high-transmittance material, which can minimize the loss of light during transmission. After precise optical design, the transparent light guide plate can ensure that light is evenly irradiated onto the under-screen camera module at a suitable angle and distribution. The transparent light guide plate also has good heat dissipation performance, which helps to reduce the heat generated by the camera module when working and ensure the stable operation of the system.

[0073] Figure 2 Schematic diagram of the structure of a transparent light guide plate in the embodiment of the utility model. Figure 2 As shown, a transparent light guide plate in an embodiment of the utility model includes:

[0074] The microlens array 4 is used to adjust the angle of the transmitted light to reduce interference with the under-screen camera module.

[0075] Specifically, the microlens array is designed and integrated on the surface or inside of the transparent light guide plate. These microlenses are arranged in an array (such as single row, M*N arrangement, full coverage, etc.). Each lens unit of the microlens array has a micron-level aperture and relief depth, which can focus and transform light, thereby adjusting the angle and distribution of light. The arrangement, lens shape, focal length and other parameters of the microlens array have been carefully designed to ensure that the interference of light on the under-screen camera module can be effectively reduced, and the distribution of light can be optimized to improve the imaging effect.

[0076] Figure 3 FIG. 1 is a schematic diagram of the structure of a microlens array in an embodiment of the utility model. Figure 3 As shown, a microlens array in an embodiment of the utility model includes:

[0077] A plurality of lens units 6 are used to perform optical processing on the light passing therethrough.

[0078] Specifically, the lens units are the core part of the microlens array, and they are responsible for optical processing of the light passing through. Each lens unit is a tiny optical element with a specific shape (such as spherical, aspherical, cylindrical, etc.) and optical properties (such as focal length, numerical aperture, etc.). When light passes through the lens units, they are subject to optical effects such as refraction, reflection or diffraction by the lens, thereby changing the propagation direction and focusing performance of the light. This optical processing helps to optimize the distribution of light and imaging quality, and reduce interference with the under-screen camera module.

[0079] The lens units are arranged in an array on the microlens array. They can be arranged according to certain rules (such as rectangular arrays, hexagonal arrays, etc.) to ensure that light can be processed evenly and effectively. The spacing and arrangement density between lens units are also important factors to consider during design. Smaller spacing and higher arrangement density can provide better light control effects, but will also increase the difficulty and cost of manufacturing.

[0080] The base 7 is used to fix the lens unit.

[0081] Specifically, the substrate is a supporting structure for fixing the lens unit. It is usually made of transparent materials with high light transmittance, high stability and easy processing, such as glass, quartz or polymer. The substrate not only provides a stable support for the lens unit, but also ensures the accuracy of the relative position and spacing between them. This is crucial to maintaining the overall optical performance of the microlens array. The substrate material needs to have high light transmittance, high stability and easy processing.

[0082] In this embodiment, the microlens array achieves precise control and optimized processing of the light passing through through the synergy of its multiple lens units and the substrate structure. This design has a wide range of application value in the under-screen camera integrated display system, which can improve the image quality and reduce the interference to the imaging module.

[0083] Figure 4 FIG. 2 is a schematic diagram of the structure of another transparent light guide plate in an embodiment of the utility model. Figure 4 As shown, another transparent light guide plate in the embodiment of the utility model includes:

[0084] The grating structure 5 is used to control the propagation path of light and improve the imaging quality.

[0085] Specifically, the grating structure is usually designed inside or on the surface of a transparent light guide plate to control the propagation path of light. The grating structure controls the propagation path of light through its special physical structure (such as periodically arranged lines or grooves), optimizing the distribution of light and imaging quality. The grating structure can be one-dimensional (such as line grating) or two-dimensional (such as surface grating), with a specific grating pitch and grating line direction. These parameters determine the optical performance and application range of the grating. The application of the grating structure effectively controls the propagation of light and reduces the interference of the screen display on the imaging.

[0086] Figure 5 FIG. 2 is a schematic diagram of the structure of another transparent light guide plate in an embodiment of the utility model. Figure 5As shown, another transparent light guide plate in the embodiment of the utility model includes a grating structure 5 and a microlens array 4 at the same time. The grating structure is etched on the substrate of the microlens array. The grating structure does not exist as an independent layer, but is directly formed on the substrate carrying the microlens array through an etching process. At this time, the lines, grooves or other features of the grating structure share the same substrate material with the lens units of the microlens array. The etching process generally includes high-precision processing methods such as photolithography and electron beam etching, which can accurately control the shape and size of the structure at the micron or nanometer scale. Therefore, the grating structure and the microlens array can be integrated very accurately to ensure that the optical performance between them can be coordinated and optimized with each other. In this embodiment, since the grating structure and the microlens array share the same substrate, the optical interface between them is reduced, which helps to reduce the reflection, scattering and other losses of light on the interface, and improve the transmittance and imaging quality of light; the integrated design of the grating structure and the microlens array enables them to work together on the light to achieve more accurate light control and optimization. The microlens array can adjust the angle and direction of light, while the grating structure can further control the propagation path and distribution of light, thereby improving the clarity and resolution of imaging; etching the grating structure directly on the substrate of the microlens array can simplify the manufacturing process. Compared with manufacturing two independent components separately and then assembling them, this integrated design reduces manufacturing steps and costs, while improving the stability and reliability of the product.

[0087] Figure 6 FIG. 2 is a schematic diagram of the structure of another transparent light guide plate in an embodiment of the utility model. Figure 6 As shown, another transparent light guide plate in the embodiment of the utility model includes a grating structure 5 and a microlens array 4 at the same time. The microlens array and the grating structure are two independent structures, and the spacing does not exceed 3mm. The microlens array is mainly responsible for adjusting the angle and direction of the transmitted light to reduce interference with the under-screen camera module and optimize the distribution of light in the display area. Its design usually takes into account factors such as the shape, focal length, and arrangement of the lens to achieve the best optical effect. The grating structure is mainly used to control the propagation path of light, and produces optical effects such as diffraction and interference through its special physical structure (such as periodically arranged lines or grooves), thereby further improving the imaging quality. The design parameters of the grating structure (such as grating pitch, line depth, angle, etc.) need to be accurately calculated and optimized according to specific application requirements. It allows more sophisticated and flexible light control in the transparent light guide plate, and has broad application prospects in the under-screen camera integrated display system.

[0088] Figure 7 Schematic diagram of the structure of an under-screen camera module in an embodiment of the present utility model. Figure 7 As shown, an under-screen camera module in an embodiment of the utility model includes:

[0089] The image sensor 8 has high sensitivity and is used to generate an image signal according to the light signal.

[0090] Specifically, the image sensor is the core component in the camera module. Its function is to convert the received light signal into an electrical signal to generate an image. Since it directly determines the imaging quality of the camera, it requires high sensitivity and high resolution. In the under-screen camera module, CMOS (complementary metal oxide semiconductor) sensors are usually used because CMOS sensors have the advantages of high integration, low power consumption and cost-effectiveness. The CMOS sensor receives light through the photodiode array on its surface and generates corresponding electrical signals according to the intensity of the light. These electrical signals are converted into digital image data through analog-to-digital conversion for subsequent image processing and analysis.

[0091] The micro lens 9 is located in front of the image sensor and guides the light to the image sensor.

[0092] Specifically, the micro lens is responsible for focusing external light onto the image sensor to form a clear image. In the under-screen camera module, due to space limitations, the lens needs to be specially designed to maintain a small size. The lens is a transparent optical component composed of one or more pieces of curved optical glass, which ensures that light can be accurately focused through precise calculations and adjustments. The main parameters of the lens include focal length, aperture size and field of view, which together determine the imaging effect and scope of application of the lens.

[0093] The image sensor and micro lens in this embodiment are two key components that cooperate and depend on each other. They jointly determine the imaging quality and performance of the camera. By continuously optimizing the design and manufacturing process of these two components, the shooting effect and user experience of the under-screen camera module can be further improved.

[0094] Figure 8 FIG. 1 is a schematic diagram of another structure of an under-screen camera integrated display system in an embodiment of the present utility model. Figure 8 As shown, compared with the above-mentioned embodiment, another under-screen camera integrated display system in the embodiment of the utility model further includes:

[0095] The image processing unit 10 is connected to the under-screen camera module and is used to receive and process image signals.

[0096] Specifically, the Image Processing Unit (IPU) is a crucial part of the under-screen camera module. It is responsible for receiving the raw image signal captured by the image sensor and processing it to output a high-quality image. The IPU first pre-processes the received raw image signal, including noise removal, color correction, and brightness adjustment. These steps are to improve the quality of the image and ensure that the final output image is clear and realistic. The IPU converts the processed image data into a format suitable for display or further processing. This may include image compression, resolution adjustment, and color space conversion.

[0097] The IPU is usually closely connected to the image sensor to quickly receive and process image data. In an under-screen camera module, the IPU may be directly integrated on the camera chip or work with the camera module as a separate chip. The coordination between the IPU and the image sensor is crucial. The image sensor is responsible for capturing images, while the IPU is responsible for converting this image data into the photos or videos that the user ultimately sees.

[0098] Figure 9 FIG. 1 is a schematic diagram of another structure of an under-screen camera integrated display system in an embodiment of the present utility model. Figure 9 As shown, compared with the above-mentioned embodiment, another under-screen camera integrated display system in the embodiment of the utility model further includes:

[0099] The collaborative control unit 11 is used to control the working status of the display screen unit and the under-screen camera module.

[0100] Specifically, the main responsibility of the collaborative control unit is to coordinate the working status of the display unit and the under-screen camera module to ensure that the two can operate efficiently and collaboratively. The collaborative control unit is responsible for switching the status when the display and camera need to work at the same time. For example, when a user uses the camera to make a video call, the collaborative control unit will adjust the display mode of the display to ensure that the camera can receive enough light.

[0101] In the under-screen camera integrated display system, the display and camera share certain hardware resources. The collaborative control unit needs to allocate these resources reasonably to ensure that both can obtain the necessary resource support. This includes dynamic management of resources such as processor time and memory allocation.

[0102] Displays and cameras are both big power consumers, and the collaborative control unit needs to optimize the power consumption of the system. By intelligently adjusting parameters such as operating frequency and voltage, the collaborative control unit can reduce overall power consumption while ensuring system performance.

[0103] In operations such as taking photos or recording videos, the collaborative control unit is responsible for synchronizing the data flow between the display and the camera. It ensures that the image data acquired by the image sensor can be transmitted to the image processing unit in a timely manner and finally displayed on the screen.

[0104] The collaborative control unit is also responsible for processing user input, such as starting the camera when the screen is touched, or switching the camera's operating mode in a specific application. It ensures that the system can respond quickly to user instructions.

[0105] The collaborative control unit in this embodiment is the "brain" of the under-screen camera integrated display system. It ensures that the display screen and the camera can work together seamlessly through precise control and management, providing users with a smooth user experience. The display screen and camera collaborative control unit optimizes the work synergy between the two and improves system performance.

[0106] Figure 10 FIG. 1 is a schematic diagram of another structure of an under-screen camera integrated display system in an embodiment of the present utility model. Figure 10 As shown, the display screen unit 1 includes a display unit 12 and a substrate 13. The transparent light guide plate is located inside the substrate 13 and runs through the substrate 13 so that light passes through the display screen unit. The display unit is a specific part of the display screen unit that is responsible for generating and presenting images or videos. Depending on the type of technology (such as LCD, OLED, LED, etc.), the construction and working principle of this part will be different. For example, in an LCD (liquid crystal display), the display unit includes a liquid crystal layer, a backlight plate, a color filter, and a polarizer, etc., which work together to control the transmission of light to display images. The substrate is the basic supporting structure of the display screen unit, which is usually made of a strong and insulating material such as glass or plastic. The substrate provides a stable mounting platform for the display unit and protects it from the external environment. In this embodiment, the substrate can be light-transmitting or opaque. The transparent light guide plate is located inside the substrate and runs through the entire substrate. It is a highly light-transmitting material, such as glass or special plastic. This embodiment reduces the impact on the display screen unit by arranging a transparent light guide plate in the substrate. It is not only applicable to transparent display screens, but also to traditional display screens, and can meet the needs of various scenarios.

[0107] The embodiment of the utility model also provides a palm-swiping device, including the under-screen camera integrated display system described in any of the above items. The palm-swiping device of this embodiment cleverly combines optical imaging technology and biometric technology to achieve accurate capture and recognition of palm features, thereby safeguarding the safety and convenience of users. The palm-swiping device of this embodiment mainly works through its built-in under-screen camera integrated display system. This system is located under the screen of the device or in a specific sensing area, does not take up additional space, and maintains the overall beauty and portability of the device. When the user places the palm in the specified position, the under-screen camera integrated display system will start immediately to quickly and accurately image and identify the palm. The palm-swiping device in this embodiment has the characteristics of high-precision imaging, contactless operation, fast response, and high security. It is suitable for various application scenarios such as mobile payment, access control systems, and personal device unlocking.

[0108] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same and similar parts between the embodiments can be referred to each other. The above description of the disclosed embodiments enables professionals and technicians in this field to implement or use the utility model. Various modifications to these embodiments will be obvious to professionals and technicians in this field, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features disclosed herein.

[0109] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various modifications or variations within the scope of the claims, which does not affect the essence of the present invention.

Claims

1. An under-screen camera integrated display system, characterized in that: include: A display unit, used for displaying images; An under-screen camera module, disposed below the display unit, for acquiring signals to generate images; A transparent light guide plate is arranged in the display screen unit and located in the area above the under-screen camera module, and is used to guide ambient light to pass through.

2. The under-screen camera integrated display system according to claim 1, characterized in that: The transparent light guide plate comprises: The microlens array is used to adjust the angle of the transmitted light to reduce interference with the under-screen camera module.

3. The under-screen camera integrated display system according to claim 2, characterized in that: The microlens array comprises: A plurality of lens units for optically processing the light passing therethrough; A substrate is used to fix the lens unit.

4. The under-screen camera integrated display system according to claim 1, characterized in that: The transparent light guide plate comprises: The grating structure is used to control the propagation path of light and improve the imaging quality.

5. The under-screen camera integrated display system according to claim 4, characterized in that: The transparent light guide plate further comprises: A microlens array, used to adjust the angle of transmitted light to reduce interference with the under-screen camera module; The grating structure is etched on the substrate of the microlens array.

6. The under-screen camera integrated display system according to claim 4, characterized in that: The transparent light guide plate further comprises: A microlens array, used to adjust the angle of transmitted light to reduce interference with the under-screen camera module; The microlens array and the grating structure are two independent structures, and the distance between them does not exceed 3 mm.

7. The under-screen camera integrated display system according to claim 1, characterized in that: The under-screen camera module includes: An image sensor having high sensitivity and used for generating an image signal according to the light signal; A micro lens, located in front of the image sensor, guides light to the image sensor.

8. The under-screen camera integrated display system according to claim 1, characterized in that: Also includes: An image processing unit is connected to the under-screen camera module and is used to receive and process image signals.

9. The under-screen camera integrated display system according to claim 1, characterized in that: The display screen unit comprises a display unit and a substrate; the transparent light guide plate is located inside the substrate and penetrates the substrate so that light passes through the display screen unit.

10. A palm brushing device, characterized in that: A camera-integrated display system under the screen comprising any one of claims 1 to 9.

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