Cover plate and display device

Abstract

This utility model discloses a cover plate and a display device. The edge of the cover plate is provided with a first optical film and a second optical film that cooperate with each other. Both the first and second optical films are inclined towards the edge of the cover plate. At least a portion of the first optical film is located within the display light-emitting area, and at least a portion of the second optical film is located within the non-display border area. The first optical film is a semi-reflective and semi-transparent film that can reflect some light and transmit other light. The second optical film is a semi-reflective and semi-transparent film or a total reflection film that can reflect at least some light. By having the first optical film reflect some of the light from the display light-emitting area toward the second optical film, and the second optical film then reflects the reflected light from the first optical film toward the light-emitting side of the cover plate, the displayed image can be seen in the non-display border area, appearing bright, thereby reducing the width of the black border or even making the black border disappear.

Description

Technical Field

[0001] This utility model relates to the field of display technology, and in particular to a cover plate and display device. Background Technology

[0002] In recent years, mobile phones, tablets, and other electronic devices have become increasingly common in people's lives. Mobile phone manufacturers have consistently explored ways to increase the screen-to-body ratio for better visual effects. A smartphone screen mainly consists of a display panel and a transparent cover. To prevent users from seeing halos and internal circuitry, and also to facilitate cover installation, an opaque area is provided around the light-transmitting area of ​​the cover. The display panel is projected through this light-transmitting area, while the opaque area is bonded to the step on the mid-frame using sealant to secure the screen and provide waterproofing for the smartphone's front cover.

[0003] To meet the waterproof rating requirements of smartphones, ensure the bonding strength between the screen and the mid-frame, and prevent various bright line abnormalities caused by impacts during assembly, production, or user drops to the PAD bending area of ​​the display screen, a certain width of adhesive must be provided between the step on the mid-frame and the opaque area of ​​the cover plate. Therefore, when processing and molding the cover plate, a sufficient amount of adhesive width must be reserved in the opaque area. This results in a wider opaque area occupying a larger portion of the cover plate, leading to excessively wide black borders and a lower screen-to-body ratio.

[0004] Figure 1 This is a schematic diagram of the optical path principle of a 2.5D cover plate in the existing technology. Figure 2 This is a schematic diagram of the optical path principle of a 3D cover plate in existing technology. To reduce the black border when displayed, such as... Figure 1 and Figure 2 As shown, existing technologies use cover plates with 2.5D or 3D curved edges to narrow the visual width of the black border on the display screen. For example... Figure 1 As shown, however, in terms of both principle and actual performance, the 2.5D cover plate does not have much effect; for example... Figure 2 As shown, 3D curved edge cover plates can play a role in compressing the width of the black border when viewed directly by using the principle of light refraction on the curved edge. In particular, when the black border is located on a large-angle curved edge, the compression effect of the narrow border when viewed directly is more obvious. However, 3D curved edge cover plates pose a great challenge to the screen bonding process and reliability, especially at the corners where screen wrinkles are easily caused, leading to failure.

[0005] Existing technologies also employ other methods to reduce the black border, such as setting a light guide structure on the underside of the cover plate to refract some of the light from the visible light-emitting area to the black border area. However, this solution has limited lateral expansion of the front-emitting light, and the brightness of the expanded front-emitting light is low, making it difficult to achieve a truly visually narrow bezel effect. Another existing technology moves the support surface for assembling the screen edge and the overall frame below the adhesive-coated surface, eliminating the need for gaps to be reserved and prevent interference with the screen edge when supporting the cover plate edge. This reduces the overall black border width, but it does not change the display bezel itself. Utility Model Content

[0006] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide a cover plate and display device to solve the problem of poor effect in reducing the width of black borders in the existing technology.

[0007] The objective of this utility model is achieved through the following technical solution:

[0008] This utility model provides a cover plate, the edge of which is provided with a first optical film and a second optical film that cooperate with each other. The first optical film and the second optical film are both inclined toward the edge of the cover plate. At least a portion of the first optical film is located in the display light-emitting area, and at least a portion of the second optical film is located in the non-display border area.

[0009] The first optical film is a semi-reflective and semi-transparent film that can reflect some light and transmit other light, and the second optical film is a semi-reflective and semi-transparent film or a total reflection film that can reflect at least some light.

[0010] In one embodiment, both the first optical film and the second optical film are disposed inside the cover plate.

[0011] In one embodiment, a protective film is provided on the light-emitting side of the cover plate, and both the first optical film and the second optical film are disposed inside the protective film.

[0012] In one embodiment, the projection portion of the first optical film on the cover plate is located in the non-display border area, and the other portion is located in the display light-emitting area.

[0013] In one embodiment, the projection of the first optical film onto the cover plate is entirely within the display light-emitting area.

[0014] In one embodiment, the projection of the second optical film onto the cover plate partially covers the non-display border area.

[0015] In one embodiment, the projection of the second optical film onto the cover completely covers the non-display border area.

[0016] In one embodiment, there are multiple first optical films, which are arranged parallel to each other, or the multiple first optical films have different inclination angles toward the edge of the cover plate.

[0017] In one embodiment, a light-shielding layer is provided on the edge of the light-incident side of the cover plate, the light-shielding layer corresponding to the non-display frame area, and the first optical film and the second optical film are closer to the light-emitting side of the cover plate relative to the light-shielding layer.

[0018] This application also provides a display device, including the cover plate as described above.

[0019] The beneficial effects of this invention are as follows: the first optical film reflects part of the light from the display light-emitting area toward the second optical film, and the second optical film then reflects the reflected light from the first optical film toward the light-emitting side of the cover plate, so that the non-display border area can also see the displayed image and present a bright state, thereby reducing the width of the black border or even making the black border disappear. Attached Figure Description

[0020] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0021] Figure 1 This is a schematic diagram of the optical path principle of a 2.5D cover plate in the existing technology.

[0022] Figure 2 This is a schematic diagram of the optical path principle of 3D cover plates in existing technology.

[0023] Figure 3 A schematic diagram of the hardware structure of a smart terminal to implement the various embodiments of this application.

[0024] Figure 4 This is a communication network system architecture diagram provided for an embodiment of this application.

[0025] Figure 5 This is a partial cross-sectional structural diagram of the display device in the first embodiment of this application.

[0026] Figure 6This is a schematic diagram of the optical path principle of the display device in the first embodiment of this application.

[0027] Figure 7 This is a partial cross-sectional structural diagram of the display device in the second embodiment of this application.

[0028] Figure 8 This is a schematic diagram of the optical path principle of the display device in the second embodiment of this application.

[0029] Figure 9 This is a partial cross-sectional structural diagram of the display device in the third embodiment of this application.

[0030] Figure 10 This is a schematic diagram of the optical path principle of the display device in the third embodiment of this application.

[0031] Figure 11 This is a partial cross-sectional structural diagram of the display device in the fourth embodiment of this application.

[0032] Figure 12 This is a schematic diagram of the optical path principle of the display device in the fourth embodiment of this application.

[0033] Figure 13 This is a partial cross-sectional structural diagram of the display device in the fifth embodiment of this application.

[0034] Figure 14 This is a schematic diagram of the optical path principle of the display device in the fifth embodiment of this application.

[0035] Figure 15 This is a partial cross-sectional structural diagram of the display device in the sixth embodiment of this application.

[0036] Figure 16 This is a schematic diagram of the optical path principle of the display device in the sixth embodiment of this application.

[0037] Figure 17 This is a partial cross-sectional structural diagram of the display device in the seventh embodiment of this application.

[0038] Figure 18 This is a schematic diagram of the optical path principle of the display device in the seventh embodiment of this application.

[0039] Figure 19 This is a partial cross-sectional structural diagram of the display device in the eighth embodiment of this application.

[0040] Figure 20 This is a schematic diagram of the optical path principle of the display device in the eighth embodiment of this application.

[0041] The realization of the objectives, functional features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. The accompanying drawings have illustrated specific embodiments of this application, which will be described in more detail below. These drawings and textual descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concepts of this application to those skilled in the art through reference to specific embodiments. Detailed Implementation

[0042] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0043] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, components, features, and elements with the same names in different embodiments of this application may have the same meaning or different meanings, the specific meaning of which must be determined by its interpretation in that specific embodiment or further in conjunction with the context of that specific embodiment.

[0044] It should be understood that although the terms first, second, third, etc., may be used herein to describe various information, such information should not be limited to these terms. These terms are used only to distinguish information of the same type from one another. For example, without departing from the scope of this document, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if," as used herein, may be interpreted as "when," "when," or "in response to determination." Furthermore, as used herein, the singular forms "a," "an," and "the" are intended to also include the plural forms unless the context indicates otherwise. It should be further understood that the terms "comprising," "including," indicate the presence of the stated feature, step, operation, element, component, item, kind, and / or group, but do not exclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, components, items, kinds, and / or groups. The terms "or," "and / or," "including at least one of the following," etc., as used in this application, may be interpreted as inclusive, or mean any one or any combination thereof. For example, "including at least one of the following: A, B, C" means "any one of the following: A; B; C; A and B; A and C; B and C; A and B and C." Similarly, "A, B, or C" or "A, B, and / or C" means "any one of the following: A; B; C; A and B; A and C; B and C; A and B and C." Exceptions to this definition only occur when the combination of elements, functions, steps, or operations is inherently mutually exclusive in some way.

[0045] It should be understood that although the steps in the flowcharts of this application's embodiments are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some of the steps in the figures may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily completed at the same time, but can be executed at different times, and their execution order is not necessarily sequential, but can be performed alternately or in turn with other steps or at least a portion of the sub-steps or stages of other steps.

[0046] Depending on the context, the words “if” or “suppose” as used here can be interpreted as “when” or “in response to determination” or “in response to detection.” Similarly, depending on the context, the phrases “if determination” or “if detection (of the stated condition or event)” can be interpreted as “when determination” or “in response to determination” or “when detection (of the stated condition or event)” or “in response to detection (of the stated condition or event).”

[0047] It should be noted that step designations such as S10 and S20 are used in this document for the purpose of more clearly and concisely describing the corresponding content, and do not constitute a substantial limitation on the order. In specific implementation, those skilled in the art may execute S20 first and then S10, etc., but these should all be within the protection scope of this application.

[0048] It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0049] In the following description, the use of suffixes such as "module," "part," or "unit" to denote elements is solely for the purpose of illustrative purposes and has no specific meaning in itself. Therefore, "module," "part," or "unit" may be used interchangeably.

[0050] Smart terminals can be implemented in various forms. For example, the smart terminals described in this application may include smart terminals such as mobile phones, tablets, laptops, handheld computers, personal digital assistants (PDAs), portable media players (PMPs), navigation devices, wearable devices, smart bracelets, pedometers, etc., as well as fixed terminals such as digital TVs and desktop computers.

[0051] The following description will use a mobile terminal as an example. Those skilled in the art will understand that, apart from elements specifically designed for mobile purposes, the construction according to the embodiments of this application can also be applied to fixed-type terminals.

[0052] Please see Figure 3 This is a schematic diagram of the hardware structure of a mobile terminal implementing various embodiments of this application. The mobile terminal 100 may include: an RF (Radio Frequency) unit 101, a WiFi module 102, an audio output unit 103, an A / V (Audio / Video) input unit 104, a sensor 105, a display unit 106, a user input unit 107, an interface unit 108, a memory 109, a processor 110, and a power supply 111, etc. Those skilled in the art will understand that... Figure 3 The mobile terminal structure shown does not constitute a limitation on the mobile terminal. The mobile terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0053] The following is combined with Figure 3 A detailed introduction to each component of the mobile terminal:

[0054] The radio frequency unit 101 can be used for receiving and transmitting signals during information transmission or calls. Specifically, it receives downlink information from the base station and processes it with the processor 110; additionally, it transmits uplink data to the base station. Typically, the radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low-noise amplifier, and a duplexer. Furthermore, the radio frequency unit 101 can also communicate wirelessly with networks and other devices. The aforementioned wireless communications may use any communication standard or protocol, including but not limited to GSM (Global System of Mobile communication), GPRS (General Packet Radio Service), CDMA2000 (Code Division Multiple Access 2000), WCDMA (Wideband Code Division Multiple Access), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access), FDD-LTE (Frequency Division Duplexing-Long Term Evolution), TDD-LTE (Time Division Duplexing-Long Term Evolution), and 5G, etc.

[0055] WiFi is a short-range wireless transmission technology. Mobile terminals, through the WiFi module 102, can help users send and receive emails, browse web pages, and access streaming media, providing users with wireless broadband internet access. Although Figure 3 The WiFi module 102 is shown, but it is understood that it is not a necessary component of the mobile terminal and can be omitted as needed without changing the essence of the utility model.

[0056] The audio output unit 103 can convert audio data received by the radio frequency unit 101 or the WiFi module 102 or stored in the memory 109 into audio signals and output them as sound when the mobile terminal 100 is in call signal receiving mode, call mode, recording mode, voice recognition mode, broadcast receiving mode, etc. Furthermore, the audio output unit 103 can also provide audio output related to specific functions performed by the mobile terminal 100 (e.g., call signal receiving sound, message receiving sound, etc.). The audio output unit 103 may include a speaker, a buzzer, etc.

[0057] The A / V input unit 104 is used to receive audio or video signals. The A / V input unit 104 may include a graphics processing unit (GPU) 1041 and a microphone 1042. The GPU 1041 processes image data of still images or videos acquired by an image capture device (such as a camera) in video capture mode or image capture mode. The processed image frames can be displayed on the display unit 106. The image frames processed by the GPU 1041 can be stored in the memory 109 (or other storage medium) or transmitted via the radio frequency unit 101 or the WiFi module 102. The microphone 1042 can receive sound (audio data) in operating modes such as telephone call mode, recording mode, and voice recognition mode, and can process such sound into audio data. The processed audio (voice) data can be converted into a format that can be transmitted to a mobile communication base station via the radio frequency unit 101 in telephone call mode. The microphone 1042 can implement various types of noise cancellation (or suppression) algorithms to eliminate (or suppress) noise or interference generated during the reception and transmission of audio signals.

[0058] The mobile terminal 100 also includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors. Optionally, the light sensor includes an ambient light sensor and a proximity sensor. Optionally, the ambient light sensor can adjust the brightness of the display panel 1061 according to the ambient light level, and the proximity sensor can turn off the display panel 1061 and / or backlight when the mobile terminal 100 is moved to the ear. As a type of motion sensor, an accelerometer sensor can detect the magnitude of acceleration in various directions (generally three axes), and can detect the magnitude and direction of gravity when stationary. It can be used for applications that recognize the phone's posture (such as landscape / portrait switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, tapping), etc. Other sensors that may be configured in the phone, such as fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, and infrared sensors, will not be described in detail here.

[0059] The display unit 106 is used to display information input by the user or information provided to the user. The display unit 106 may include a display panel 1061, which may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.

[0060] User input unit 107 can be used to receive input numerical or character information, and generate key signal inputs related to user settings and function control of the mobile terminal. Optionally, user input unit 107 may include touch panel 1071 and other input devices 1072. Touch panel 1071, also known as a touch screen, can collect touch operations performed by the user on or near it (such as operations performed by the user using a finger, stylus, or any suitable object or accessory on or near touch panel 1071), and drive corresponding connection devices according to a pre-set program. Touch panel 1071 may include a touch detection device and a touch controller. Optionally, the touch detection device detects the user's touch position and the signal generated by the touch operation, and transmits the signal to the touch controller; the touch controller receives touch information from the touch detection device, converts it into touch point coordinates, sends it to processor 110, and can receive and execute commands sent by processor 110. In addition, touch panel 1071 can be implemented using various types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel 1071, the user input unit 107 may also include other input devices 1072. Optionally, other input devices 1072 may include, but are not limited to, one or more of the following: physical keyboard, function keys (such as volume control buttons, power buttons, etc.), trackball, mouse, joystick, etc., without being specifically limited here.

[0061] Optionally, the touch panel 1071 may cover the display panel 1061. When the touch panel 1071 detects a touch operation on or near it, it transmits the information to the processor 110 to determine the type of touch event. Subsequently, the processor 110 provides corresponding visual output on the display panel 1061 based on the type of touch event. Although in Figure 3 In this embodiment, the touch panel 1071 and the display panel 1061 are two independent components to realize the input and output functions of the mobile terminal. However, in some embodiments, the touch panel 1071 and the display panel 1061 can be integrated to realize the input and output functions of the mobile terminal. The specific implementation is not limited here.

[0062] Interface unit 108 serves as an interface through which at least one external device can connect to mobile terminal 100. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, an audio input / output (I / O) port, a video I / O port, a headphone port, and so on. Interface unit 108 may be used to receive input (e.g., data, power, etc.) from the external device and transmit the received input to one or more elements within mobile terminal 100, or it may be used to transmit data between mobile terminal 100 and the external device.

[0063] The memory 109 can be used to store software programs and various data. The memory 109 may primarily include a program storage area and a data storage area. Optionally, the program storage area may store the operating system, applications required for at least one function (such as sound playback, image playback, etc.), etc.; the data storage area may store data created based on the use of the mobile phone (such as audio data, phonebook, etc.). Furthermore, the memory 109 may include high-speed random access memory, and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other volatile solid-state storage device.

[0064] The processor 110 is the control center of the mobile terminal. It connects various parts of the mobile terminal via various interfaces and lines. By running or executing software programs and / or modules stored in the memory 109, and by calling data stored in the memory 109, it performs various functions and processes data of the mobile terminal, thereby providing overall monitoring of the mobile terminal. The processor 110 may include one or more processing units; preferably, the processor 110 may integrate an application processor and a modem processor. Optionally, the application processor mainly handles the operating system, user interface, and applications, while the modem processor mainly handles wireless communication. It is understood that the modem processor may not be integrated into the processor 110.

[0065] The mobile terminal 100 may also include a power supply 111 (such as a battery) that supplies power to various components. Preferably, the power supply 111 can be logically connected to the processor 110 through a power management system, thereby enabling functions such as charging, discharging, and power consumption management through the power management system.

[0066] although Figure 3 As not shown, the mobile terminal 100 may also include a Bluetooth module, etc., which will not be described in detail here.

[0067] To facilitate understanding of the embodiments of this application, the communication network system on which the mobile terminal of this application is based is described below.

[0068] Please see Figure 4 , Figure 4 This application provides a communication network system architecture diagram. The communication network system is an LTE system based on the universal mobile communication technology. The LTE system includes a UE (User Equipment) 201, an E-UTRAN (Evolved UMTS Terrestrial Radio Access Network) 202, an EPC (Evolved Packet Core) 203, and the operator's IP services 204, which are connected in sequence.

[0069] Optionally, UE201 can be the aforementioned terminal 100, which will not be described in detail here.

[0070] E-UTRAN202 includes eNodeB2021 and other eNodeB2022, etc. Optionally, eNodeB2021 can connect to other eNodeB2022 via backhaul (e.g., X2 interface), and eNodeB2021 connects to EPC203, providing access from UE201 to EPC203.

[0071] EPC203 may include an MME (Mobility Management Entity) 2031, an HSS (Home Subscriber Server) 2032, other MMEs 2033, an SGW (Serving Gateway) 2034, a PGW (Packet Data Network Gateway) 2035, and a PCRF (Policy and Charging Rules Function) 2036, etc. Optionally, MME2031 is the control node that handles signaling between UE201 and EPC203, providing bearer and connection management. HSS2032 is used to provide registers to manage functions such as the Home Location Register (not shown in the figure) and stores user-specific information such as service characteristics and data rates. All user data can be sent through SGW2034. PGW2035 can provide UE 201 IP address allocation and other functions. PCRF2036 is the policy and charging control decision point for service data flow and IP bearer resources. It selects and provides available policy and charging control decisions for the policy and charging enforcement function unit (not shown in the figure).

[0072] IP services 204 may include the Internet, intranet, IMS (IP Multimedia Subsystem), or other IP services.

[0073] Although the above description uses the LTE system as an example, those skilled in the art should understand that this application is not only applicable to the LTE system, but also to other wireless communication systems, such as GSM, CDMA2000, WCDMA, TD-SCDMA, and future new network systems (such as 5G), etc., without limitation.

[0074] Based on the above-described mobile terminal hardware structure and communication network system, various embodiments of this application are proposed.

[0075] First Embodiment

[0076] Figure 5 This is a partial cross-sectional structural diagram of the display device in the first embodiment of this application. Figure 6 This is a schematic diagram of the optical path principle of the display device in the first embodiment of this application. For example... Figure 5 and Figure 6 As shown, in the first embodiment of this utility model, a cover plate 10 is provided. The edge of the cover plate 10 is provided with a first optical film 121 and a second optical film 122 that cooperate with each other. Both the first optical film 121 and the second optical film 122 are inclined towards the edge of the cover plate 10. At least a portion of the first optical film 121 is located within the display light-emitting area, and at least a portion of the second optical film 122 is located within the non-display border area. The non-display border area is located at the edge of the display light-emitting area and surrounds it. Both the first optical film 121 and the second optical film 122 surround the edge of the cover plate 10.

[0077] The first optical film 121 is a semi-reflective and semi-transparent film capable of reflecting some light and transmitting others. The second optical film 122 is a semi-reflective and semi-transparent film or a total reflection film capable of reflecting at least some light. In this embodiment, the second optical film 122 is a total reflection film, which can reflect most of the light with a reflectivity of over 90%. There is one first optical film 121 and one second optical film 122.

[0078] like Figure 2 As shown, light enters the cover plate 10 from the light-incident side. The first optical film 121 reflects part of the light towards the second optical film 122. The second optical film 122 then reflects the reflected light from the first optical film 121 towards the light-emitting side of the cover plate 10, so that the non-display border area can also see the displayed image and present a bright state, thereby increasing the width of the visible light-emitting area and reducing the width of the black border (black border area in the figure) or even making the black border disappear.

[0079] In this embodiment, a protective film 12 is provided on the light-emitting side of the cover plate 10. The first optical film 121 and the second optical film 122 are both disposed inside the protective film 12. This enhances the structural strength of the cover plate 10 and provides protection for the cover plate 10, thereby achieving a narrow bezel or bezel-less display. Of course, in other embodiments, the first optical film 121 and the second optical film 122 may also be directly disposed inside the cover plate 10.

[0080] Furthermore, the tilt angle of the first optical film 121 and the second optical film 122 toward the edge of the cover plate 10 is 40-60°. The specific tilt angle can be set according to the actual situation. It is only necessary to ensure that the first optical film 121 can reflect some light toward the second optical film 122, and the second optical film 122 can reflect the reflected light from the first optical film 121 toward the light-emitting side of the cover plate 10.

[0081] In this embodiment, the projection of the first optical film 121 onto the cover plate 10 is entirely within the display light-emitting area, thus ensuring that the entire first optical film 121 can be effectively utilized. Optionally, the edge of the projection of the first optical film 121 onto the cover plate 10 is aligned with the edge of the display light-emitting area, that is, the edge of the projection of the first optical film 121 onto the cover plate 10 is aligned with the boundary line between the non-display border area and the display light-emitting area. Of course, in other embodiments, the projection of the first optical film 121 onto the cover plate 10 may also be partially located in the non-display border area and partially located within the display light-emitting area, so that the projection of the first optical film 121 onto the cover plate 10 can cover the boundary line between the non-display border area and the display light-emitting area, thereby ensuring the display effect at the edge of the screen.

[0082] In this embodiment, the projection of the second optical film 122 onto the cover plate 10 covers a portion of the non-display border area. This allows for a reduction in the size of the second optical film 122 and lower costs while minimizing the black border. Of course, in other embodiments, the projection of the second optical film 122 onto the cover plate 10 can also completely cover the non-display border area, ensuring that the entire non-display border area can see the displayed image, thus eliminating the black border and achieving a borderless display effect.

[0083] In this embodiment, a light-shielding layer 11 is provided on the edge of the light-incident side of the cover plate 10. The light-shielding layer 11 corresponds to the non-display border area, that is, the projection of the light-shielding layer 11 on the cover plate 10 coincides with the non-display border area. Among them, the first optical film 121 and the second optical film 122 are closer to the light-emitting side of the cover plate 10 relative to the light-shielding layer 11.

[0084] This application also provides a display device, including a display panel 20 and a cover plate 10 as described above, wherein the cover plate 10 is disposed on the light-emitting side of the display panel 20.

[0085] Second Embodiment

[0086] Figure 7 This is a partial cross-sectional structural diagram of the display device in the second embodiment of this application. Figure 8 This is a schematic diagram of the optical path principle of the display device in the second embodiment of this application. For example... Figure 7 and Figure 8As shown, the display device provided in the second embodiment of this utility model is similar to that in the first embodiment. Figure 5 and Figure 6 The display devices in these devices are basically the same, except that:

[0087] In this embodiment, both the first optical film 121 and the second optical film 122 are semi-reflective and semi-transparent films, and both are capable of reflecting some light and transmitting another portion of light. For example... Figure 8 As shown, light enters the cover plate 10 from the light-incident side. The first optical film 121 reflects part of the light towards the second optical film 122. The second optical film 122 then reflects part of the reflected light from the first optical film 121 towards the light-emitting side of the cover plate 10. This allows the displayed image to be seen in the non-display border area, presenting a bright state, thereby increasing the width of the visible light-emitting area and reducing the width of the black border (the black border area in the figure) or even making the black border disappear. Another part of the reflected light from the first optical film 121 can pass through the second optical film 122. When viewed from the side of the display device, the displayed image can also be seen, presenting a bright state, and the effect of reducing the black border is even better.

[0088] Those skilled in the art should understand that the remaining structure and working principle of this embodiment are the same as those of the first embodiment, and will not be described again here.

[0089] Third Embodiment

[0090] Figure 9 This is a partial cross-sectional structural diagram of the display device in the third embodiment of this application. Figure 10 This is a schematic diagram of the optical path principle of the display device in the third embodiment of this application. Figure 9 and Figure 10 As shown, the display device provided in the third embodiment of this utility model is different from that in the first embodiment ( Figure 5 and Figure 6 The display devices in these devices are basically the same, except that:

[0091] In this embodiment, there are multiple first optical films 121 arranged parallel to each other. This allows the multiple first optical films 121 to reflect more light towards the second optical film 122, thereby increasing the brightness of the non-display border area and improving the display effect. Of course, in other embodiments, the multiple first optical films 121 have different tilt angles towards the edge of the cover plate 10, allowing the reflected light from the first optical films 121 to reach the second optical film 122 at multiple angles, further improving the display effect of the non-display border area.

[0092] By setting multiple first optical films 121, the display effect of the transition of reflected brightness in the non-display border area can be improved according to the correction requirements of the display brightness at the edge of the display device; and the thickness of the cover plate 10 and the display device can be further reduced.

[0093] Those skilled in the art should understand that the remaining structure and working principle of this embodiment are the same as those of the first embodiment, and will not be described again here.

[0094] Fourth embodiment

[0095] Figure 11 This is a partial cross-sectional structural diagram of the display device in the fourth embodiment of this application. Figure 12 This is a schematic diagram of the optical path principle of the display device in the fourth embodiment of this application. For example... Figure 11 and Figure 12 As shown, the display device provided in the fourth embodiment of this utility model is similar to that in the second embodiment (…). Figure 7 and Figure 8 The display devices in these devices are basically the same, except that:

[0096] In this embodiment, there are multiple first optical films 121 arranged parallel to each other. This allows the multiple first optical films 121 to reflect more light towards the second optical film 122, thereby increasing the brightness of the non-display border area and improving the display effect. Of course, in other embodiments, the multiple first optical films 121 have different tilt angles towards the edge of the cover plate 10, allowing the reflected light from the first optical films 121 to reach the second optical film 122 at multiple angles, further improving the display effect of the non-display border area.

[0097] By setting multiple first optical films 121, the display effect of the transition of reflected brightness in the non-display border area can be improved according to the correction requirements of the display brightness at the edge of the display device; and the thickness of the cover plate 10 and the display device can be further reduced.

[0098] Those skilled in the art should understand that the remaining structure and working principle of this embodiment are the same as those of the second embodiment, and will not be described again here.

[0099] Fifth Embodiment

[0100] Figure 13 This is a partial cross-sectional structural diagram of the display device in the fifth embodiment of this application. Figure 14 This is a schematic diagram of the optical path principle of the display device in the fifth embodiment of this application. For example... Figure 13 and Figure 14 As shown, the display device provided in the fifth embodiment of this utility model is similar to that in the first embodiment (…). Figure 5 and Figure 6), Second embodiment ( Figure 7 and Figure 8 ), Third embodiment ( Figure 9 and Figure 10 ) or fourth embodiment ( Figure 11 and Figure 12 The display devices in these devices are basically the same, except that:

[0101] In this embodiment, the projection of the second optical film 122 onto the cover plate 10 can also completely cover the non-display border area, so that the entire non-display border area can see the displayed image, thereby maximizing the width of the visible light-emitting area and making the black border disappear, thus achieving a borderless display effect.

[0102] Furthermore, the edges of the protective film 12 can be designed with a 2.5D or 3D curved arc to improve the display effect in the non-display border area.

[0103] Those skilled in the art should understand that the remaining structures and working principles of this embodiment are the same as those of the first, second, third, or fourth embodiments, and will not be described again here.

[0104] Sixth Embodiment

[0105] Figure 15 This is a partial cross-sectional structural diagram of the display device in the sixth embodiment of this application. Figure 16 This is a schematic diagram of the optical path principle of the display device in the sixth embodiment of this application. Figure 15 and Figure 16 As shown, the display device provided in the sixth embodiment of this utility model is different from that in the fifth embodiment. Figure 13 and Figure 14 The display devices in these devices are basically the same, except that:

[0106] In this embodiment, both the first optical film 121 and the second optical film 122 are semi-reflective and semi-transparent films, and both are capable of reflecting some light and transmitting another portion of light. For example... Figure 16 As shown, light enters the cover plate 10 from the light-incident side. The first optical film 121 reflects part of the light towards the second optical film 122. The second optical film 122 then reflects part of the reflected light from the first optical film 121 towards the light-emitting side of the cover plate 10. This allows the displayed image to be seen in the non-display border area, presenting a bright state, thereby increasing the width of the visible light-emitting area and reducing the width of the black border (the black border area in the figure) or even making the black border disappear. Another part of the reflected light from the first optical film 121 can pass through the second optical film 122. When viewed from the side of the display device, the displayed image can also be seen, presenting a bright state, and the effect of reducing the black border is even better.

[0107] Those skilled in the art should understand that the remaining structures and working principles of this embodiment are the same as those of the fifth embodiment, and will not be repeated here.

[0108] Seventh Embodiment

[0109] Figure 17 This is a partial cross-sectional structural diagram of the display device in the seventh embodiment of this application. Figure 18 This is a schematic diagram of the optical path principle of the display device in the seventh embodiment of this application. Figure 17 and Figure 18 As shown, the display device provided in the seventh embodiment of this utility model is similar to that in the first embodiment (…). Figure 5 and Figure 6 ), Second embodiment ( Figure 7 and Figure 8 ), Third embodiment ( Figure 9 and Figure 10 ), Fourth embodiment ( Figure 11 and Figure 12 Fifth embodiment () Figure 13 and Figure 14 ) or the sixth embodiment ( Figure 15 and Figure 16 The display devices in these devices are basically the same, except that:

[0110] In this embodiment, both the first optical film 121 and the second optical film 122 are directly disposed inside the cover plate 10, thereby allowing the first optical film 121 and the second optical film 122 to form an integral structure with the cover plate 10. This integrated cover plate design achieves narrow bezel or bezel-less display while reducing the thickness of the display device. This integrated cover plate design allows for direct edge brightness correction at the screen factory, further enhancing the narrow bezel or bezel-less display effect.

[0111] Those skilled in the art should understand that the remaining structures and working principles of this embodiment are the same as those of the first, second, third, fourth, fifth, or sixth embodiments, and will not be described again here.

[0112] Eighth embodiment

[0113] Figure 19 This is a partial cross-sectional structural diagram of the display device in the eighth embodiment of this application. Figure 20 This is a schematic diagram of the optical path principle of the display device in the eighth embodiment of this application. For example... Figure 19 and Figure 20 As shown, the display device provided in the eighth embodiment of this utility model is similar to that in the seventh embodiment (…). Figure 19 and Figure 20 The display devices in these devices are basically the same, except that:

[0114] In this embodiment, both the first optical film 121 and the second optical film 122 are semi-reflective and semi-transparent films, and both are capable of reflecting some light and transmitting another portion of light. For example... Figure 16 As shown, light enters the cover plate 10 from the light-incident side. The first optical film 121 reflects part of the light towards the second optical film 122. The second optical film 122 then reflects part of the reflected light from the first optical film 121 towards the light-emitting side of the cover plate 10. This allows the displayed image to be seen in the non-display border area, presenting a bright state, thereby increasing the width of the visible light-emitting area and reducing the width of the black border (the black border area in the figure) or even making the black border disappear. Another part of the reflected light from the first optical film 121 can pass through the second optical film 122. When viewed from the side of the display device, the displayed image can also be seen, presenting a bright state, and the effect of reducing the black border is even better.

[0115] Those skilled in the art should understand that the remaining structures and working principles of this embodiment are the same as those of the seventh embodiment, and will not be repeated here.

[0116] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A cover plate, characterized in that The edge of the cover plate (10) is provided with a first optical film (121) and a second optical film (122) that cooperate with each other. The first optical film (121) and the second optical film (122) are both inclined towards the edge of the cover plate (10). At least a portion of the first optical film (121) is located in the display light-emitting area, and at least a portion of the second optical film (122) is located in the non-display border area. The first optical film (121) is a semi-reflective and semi-transparent film that can reflect part of the light and transmit another part of the light, and the second optical film (122) is a semi-reflective and semi-transparent film or a total reflection film that can reflect at least part of the light.

2. The cover sheet of claim 1, wherein The first optical film (121) and the second optical film (122) are both disposed inside the cover plate (10).

3. The cover sheet of claim 1, wherein The cover plate (10) has a protective film (12) on the light-emitting side, and the first optical film (121) and the second optical film (122) are both disposed inside the protective film (12).

4. The cover sheet of claim 1, wherein The projection portion of the first optical film (121) on the cover plate (10) is located in the non-display border area, and the other portion is located in the display light-emitting area.

5. The cover sheet of claim 1, wherein The projection of the first optical film (121) onto the cover plate (10) is entirely within the display light-emitting area.

6. The cover plate according to claim 1, characterized in that, The projection of the second optical film (122) onto the cover plate (10) covers the non-display border area.

7. The cover sheet of claim 1, wherein The projection of the second optical film (122) onto the cover plate (10) completely covers the non-display border area.

8. The cover sheet of claim 1, wherein The number of the first optical films (121) is at least two, and the at least two first optical films (121) are arranged parallel to each other, or the at least two first optical films (121) have different tilt angles toward the edge of the cover plate (10).

9. The cover sheet according to any one of claims 1 to 8, characterized in that The cover plate (10) has a light-shielding layer (11) on the light-incident side edge, the light-shielding layer (11) is opposite to the non-display frame area, and the first optical film (121) and the second optical film (122) are closer to the light-emitting side of the cover plate (10) relative to the light-shielding layer (11).

10. A display device, characterized by comprising: Includes the cover plate (10) as described in any one of claims 1-9.

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