Display devices

Abstract

The present disclosure relates to a display device comprising a display panel; a middle frame for supporting the display panel, the middle frame being provided with an accommodation space; and a fingerprint module disposed between the display panel and the middle frame, with at least a portion of the fingerprint module disposed within the accommodation space. The fingerprint module comprises a circuit board and a fingerprint chip attached to a first surface of the circuit board, the fingerprint chip facing the display panel, and the circuit board being located within the accommodation space. The display device described in the embodiments of the present disclosure avoids the fingerprint module occupying the cavity between the middle frame and the back cover, providing more space for stacking other components and facilitating the ultra-thinness of the entire device.

Description

Technical Field

[0001] The present disclosure relates to the technical field of electronic devices, and in particular to a display device. Background Art

[0002] Electronic devices such as mobile phones, tablets and smart wearables have become indispensable tools for people's lives, entertainment and work.

[0003] Under-screen fingerprint technology is currently widely used in electronic devices. The housing is the part of the electronic device that constitutes the external structure and is the structure that the user can directly touch. The housing mainly plays a protective role. The housing of an electronic device usually includes a mid-frame. Taking the common electronic device - mobile phone as an example, the mid-frame is the part of the housing that forms the side of the phone. A transparent cover is usually installed on one side of the mid-frame, and a back cover is installed on the other side, thus forming a cavity. The display module, fingerprint module, battery and other structures are all located in this cavity.

[0004] In related technologies, the midframe has a hole, and the fingerprint module is located between the midframe and the back cover, partially within the hole. This space occupied by the fingerprint module significantly impacts the stacking of other components within this space, hindering the overall slimness of the device. Furthermore, the size of the fingerprint module itself is limited by the stacking of other components, impacting the fingerprint recognition area. Summary of the Invention

[0005] To overcome the problems existing in the related art, the present disclosure provides a display device.

[0006] According to one aspect of an embodiment of the present disclosure, a display device is provided, including a display panel; a middle frame for supporting the display panel, the middle frame being provided with an accommodating space; a fingerprint module being arranged between the display panel and the middle frame, and at least a portion of the fingerprint module being arranged in the accommodating space, the fingerprint module including a circuit board and a fingerprint chip attached to a first surface of the circuit board, the fingerprint chip facing the display panel, and the circuit board being located in the accommodating space.

[0007] In one example, the fingerprint module further includes a reinforcing plate; the reinforcing plate is adhered to the second surface of the circuit board and connected to the middle frame; the second surface of the circuit board is opposite to the first surface; the reinforcing plate is located in the accommodating space and connected to the middle frame.

[0008] In one example, the accommodating space is a groove provided in the middle frame; and the reinforcing plate is attached to the bottom surface of the groove.

[0009] In one example, the accommodating space is a through hole that passes through the middle frame; the through hole is formed as a stepped through hole having a first through hole and a second through hole; the fingerprint chip is arranged in the first through hole; the reinforcement plate is arranged in the second through hole and is attached to the stepped surface of the first through hole and the second through hole.

[0010] In one example, a diameter of the first through hole is smaller than a diameter of the second through hole.

[0011] In one example, the display device further includes a support plate, which includes a U-shaped plate and bending portions arranged on both sides of the U-shaped plate; the fingerprint module is arranged in the recessed portion of the U-shaped plate.

[0012] In one example, the accommodating space is a through hole penetrating the middle frame; the U-shaped plate of the support plate is disposed in the through hole; and the bent portion of the support plate is attached to the middle frame.

[0013] In one example, the accommodating space is a through hole passing through the middle frame; the through hole is formed as a stepped through hole having a first through hole and a second through hole; the U-shaped plate of the support plate is arranged in the first through hole; and the bent portion of the support plate is attached to the stepped surface of the first through hole and the second through hole.

[0014] In one example, a surface of the support plate facing away from the reinforcing plate and a surface of the middle frame facing away from the display panel form a coplanar surface.

[0015] In one example, the fingerprint module further includes a sealing foam; the sealing foam is arranged around the fingerprint chip.

[0016] In one example, the display panel is a liquid crystal display (LCD) panel.

[0017] In one example, the display panel is an organic light emitting diode (OLED) display panel.

[0018] In one example, the display device further includes a light source; the light source is disposed in the middle frame.

[0019] In one example, the thickness of the fingerprint module is less than 0.45 mm.

[0020] The technical solution provided by the embodiments of the present disclosure may include the following beneficial effects: the fingerprint module is located between the display panel and the middle frame, and partially located in the accommodating space of the middle frame, avoiding the fingerprint module occupying the cavity between the middle frame and the back cover, providing more space for the stacking of other components, and facilitating the ultra-thinness of the entire machine.

[0021] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0023] Figure 1 It is a structural schematic diagram of a display device with an LCD display panel in the related art.

[0024] Figure 2 FIG. 1 is a schematic structural diagram of a display device with an LCD display panel according to an exemplary embodiment of the present disclosure.

[0025] Figure 3 FIG. 4 is a schematic structural diagram of a display device with an LCD display panel according to another exemplary embodiment of the present disclosure.

[0026] Figure 4 FIG. 4 is a schematic structural diagram of a display device with an LCD display panel according to another exemplary embodiment of the present disclosure.

[0027] Figure 5 FIG. 4 is a schematic structural diagram of a display device with an LCD display panel according to another exemplary embodiment of the present disclosure.

[0028] Figure 6 FIG. 4 is a schematic structural diagram of a display device with an OLED display panel according to another exemplary embodiment of the present disclosure.

[0029] Figure 7 FIG. 4 is a schematic structural diagram of a display device with an OLED display panel according to another exemplary embodiment of the present disclosure.

[0030] Figure 8 FIG. 4 is a schematic structural diagram of a display device with an OLED display panel according to another exemplary embodiment of the present disclosure.

[0031] Figure 9 FIG. 4 is a schematic structural diagram of a display device with an OLED display panel according to another exemplary embodiment of the present disclosure.

[0032] Figure 10 FIG. 1 is a schematic diagram showing fingerprint recognition areas of different fingerprint modules according to an exemplary embodiment of the present disclosure.

[0033] Figure 11 FIG1 is a schematic top view of the assembly of a fingerprint module and a sealing foam according to an exemplary embodiment of the present disclosure.

[0034] Figure 12 is based on Figure 11 The embodiment shown is a front view schematic diagram of the assembly of the fingerprint module and the sealing foam. DETAILED DESCRIPTION

[0035] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible embodiments consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

[0036] Figure 1 This is a schematic diagram of the structure of a display device with an LCD display panel in the related art. Because the backlight layer of the LCD display panel is not transparent to visible light, the LCD display panel cannot provide light source for the fingerprint module. Therefore, Figure 1 As shown, in the display device 1 with an LCD display panel, it is necessary to additionally add 940nm infrared light as the light source 14.

[0037] exist Figure 1 In the embodiment, the display device 1 includes a through hole 12 provided in the middle frame 11 , a fingerprint module 13 provided in the through hole 12 , and a light source 14 .

[0038] The middle frame 11 is fixedly connected to the LCD display panel 15. An operable display area is provided on the LCD display panel 15. The position of the through hole 12 provided in the middle frame 11 corresponds to the operable display area.

[0039] The fingerprint module 13 is fixed to the side of the middle frame 11 facing away from the LCD display panel 15 and is located within the through hole 12. The light source 14 is located on the lower sidewall of the middle frame 11. The light source 14 is an infrared LED lamp. The infrared LED lamp emits infrared light as incident light d. The incident light d passes through the LCD display panel and illuminates the fingerprint path. The incident light d is then reflected by the fingerprint path to form reflected light e. The fingerprint module 13 receives the reflected light e and uses it to determine the fingerprint of the finger.

[0040] like Figure 1 As shown, the fingerprint module 13 is located on the side of the middle frame 11 facing away from the LCD display panel 15. The sensor in the fingerprint module 13 uses a lens, which has a relatively large Z-axis dimension of typically 2mm-3mm. This occupies the space between the middle frame and the back cover, significantly impacting the stacking of other components within that space and hindering the overall slimness of the device. Furthermore, the through-hole 12 in the middle frame 11 also impacts the overall strength of the device.

[0041] Furthermore, because the size of the fingerprint module 13 itself is also limited by the stacking of other components, the sensor lens can only realize single small-area fingerprint recognition A, and the small recognition area leads to low unlocking performance and affects the user experience.

[0042] In addition, the distance between the fingerprint recognition area of ​​the fingerprint module 13 and the LCD display panel 15 is relatively far, resulting in slow fingerprint recognition speed and poor unlocking performance, which affects the user experience.

[0043] In view of this, an embodiment of the present disclosure provides a display device. Figure 2 FIG. 1 is a schematic structural diagram of a display device of an LCD display panel according to an exemplary embodiment of the present disclosure.

[0044] In the embodiment of the present disclosure, the display device may be a mobile phone, a tablet computer, a smart wearable device, a personal digital assistant, etc. In the following description, a mobile phone is used as an example, but the present invention is not limited thereto.

[0045] like Figure 2 As shown, the display device 2 of this embodiment includes an LCD display panel 24, a middle frame 23 supporting the display panel 24, and a fingerprint module 22 located between the display panel 24 and the middle frame 23. The middle frame 23 is provided with an accommodating space 21 for accommodating the fingerprint module 22. A light source 25 is provided on the side wall of the middle frame 23.

[0046] In this embodiment, the LCD display panel 24 may include a glass cover 241, an optically clear adhesive layer (OCA) 242, a color filter (CF) 243, a thin film transistor (TFT) 244, a backlight film 245, and a backlight frame 246, which are stacked in sequence. The backlight frame 246 has a through hole to allow light to pass through the through hole and illuminate the fingerprint recognition area of ​​the fingerprint module 22. The LCD display panel 24 is also provided with an operable display area 247 and an ink area 248 (non-display area). The fingerprint module 22 is located in the operable display area 247 to ensure accurate fingerprint recognition.

[0047] The fingerprint module 22 is used to identify the user's fingerprint in order to determine whether the current user's access is legal. The fingerprint module 22 is arranged between the display panel 24 and the middle frame 23, and at least a portion of the fingerprint module 22 is arranged in the accommodating space. The fingerprint module 22 includes a circuit board 221 and a fingerprint chip 222 attached to the first surface of the circuit board 221. The fingerprint chip 222 faces the display panel 24, and the circuit board 221 is located in the accommodating space 21. The overall thickness of the fingerprint module can be less than 0.45 mm. The fingerprint chip 222 is used for fingerprint image acquisition, feature extraction and feature comparison to realize the fingerprint recognition function.

[0048] The fingerprint chip 222 is thin and light, making the overall thickness of the fingerprint module less than 0.45 mm. Therefore, the fingerprint module 22 occupies a small area of ​​the entire device.

[0049] In addition, the fingerprint module 22 is located between the LCD display panel 24 and the middle frame 23, and is partially located in the accommodation space 21 of the middle frame 23, avoiding the fingerprint module 22 occupying the cavity between the middle frame 23 and the back cover (not shown), providing more space for stacking other components in the mobile phone, and facilitating the ultra-thinness of the entire device. Moreover, the size of the fingerprint module 22 itself is no longer limited by other components, and the fingerprint module 22 can be appropriately increased to arrange more micro lenses 222a on the fingerprint chip 222, thereby increasing the fingerprint recognition area B of the fingerprint module 22 (such as Figure 10 In addition, the fingerprint recognition area of ​​the fingerprint module 22 is closer to the display panel 24, which increases the fingerprint recognition speed of the fingerprint module 22 and improves the unlocking performance.

[0050] In some embodiments, as Figure 2 As shown, the fingerprint module 22 also includes a reinforcing plate 223. The reinforcing plate 223 is attached to the second side of the circuit board 221 and is connected to the middle frame 23. The second side of the circuit board 221 is opposite to the first side. The reinforcing plate 223 is located in the accommodating space 21 and is connected to the middle frame 23. The reinforcing plate 223 mainly supports the fingerprint chip 222 and the circuit board 221, thereby improving the overall strength of the fingerprint module 22. In addition, the reinforcing plate 223 is connected to the middle frame 23 to supplement the strength of the accommodating space of the middle frame 23. In order to further reduce the overall thickness of the fingerprint module 22, the circuit board 221 can be a flexible circuit board. The thickness of the flexible circuit board can be 0.1mm, the thickness of the chip can be 0.2mm, and the thickness of the reinforcing plate can be 0.15mm.

[0051] In one example, the reinforcing plate 223 can be a metal or plastic plate with a certain degree of support strength, such as a steel plate, aluminum alloy plate, polycarbonate plate, or polyvinyl chloride plate. In this embodiment, a steel plate is preferably used, which is fixed to the middle frame by bonding or welding. The steel plate has a certain degree of support strength, which can provide support for the fingerprint module 22 and improve the strength of the fingerprint module 22.

[0052] In some embodiments, as Figure 2 As shown, the accommodating space 21 is a groove set in the middle frame 23, and the reinforcing plate 223 is attached to the bottom surface of the groove. Specifically, a blind hole can be opened on the surface of the middle frame 23 near the LCD display panel 24, and the reinforcing plate 223 is fixedly attached to the bottom of the blind hole.

[0053] In this embodiment, the accommodating space 21 is a recessed structure defined in the middle frame 23, with the fingerprint module 22 positioned within the recess. This assembly method eliminates the need for the fingerprint module 22 to occupy the cavity between the middle frame 23 and the back cover (not shown), providing more space for stacking other components within the phone and contributing to the phone's ultra-thin design. Furthermore, the middle frame 23 eliminates the need for a through-hole; the recess is integrally formed with the middle frame 23, thereby enhancing the strength of the middle frame 23 and, consequently, the overall device.

[0054] In the above embodiment, when the fingerprint module 22 needs to be repaired or replaced, the LCD display panel 24 of the mobile phone needs to be removed from the middle frame 23 first, and then the fingerprint module 22 needs to be removed from the groove of the middle frame 23, which will cause inconvenience in disassembly, repair and replacement.

[0055] In order to solve the problem in the above embodiment, Figure 3 FIG. 4 is a schematic structural diagram of a display device of an LCD display panel according to another exemplary embodiment of the present disclosure.

[0056] In some embodiments, as Figure 3 As shown, the accommodating space 21 is a through hole that passes through the middle frame 23. The through hole is formed into a stepped through hole having a first through hole 211 and a second through hole 212. In this embodiment, preferably, the middle frame 23 can be provided with a first through hole 211 and a second through hole 212 of different diameters. The diameter of the first through hole 211 is smaller than the diameter of the second through hole 212, and the first through hole 211 is located on the side close to the LCD display panel 24. The fingerprint chip 222 is disposed in the first through hole 211, and the reinforcement plate 223 is disposed in the second through hole 212 and adheres to the stepped surface formed by the first through hole 211 and the second through hole 212. During assembly, the reinforcement plate 223 in the fingerprint module 22 is reversed and installed on the side of the middle frame 23 facing away from the LCD display panel 24, so that it adheres to the stepped surface of the first through hole 211 and the second through hole 212.

[0057] In this embodiment, the fingerprint module 22 is reverse-mounted in the through-hole of the middle frame 23. When the fingerprint module 22 needs to be repaired or replaced, there is no need to remove the display panel 24 from the middle frame 23. Instead, the fingerprint module 22 can be removed from the side of the middle frame 23 facing away from the display panel. This facilitates repair and replacement, improving after-sales repair efficiency. Furthermore, the assembly space of the fingerprint module 22 is reduced, reducing the area occupied by the entire device and providing more space for stacking other components. Furthermore, the reinforcement plate 223 is attached to the stepped surface of the first through-hole 211 and the second through-hole 212, forming a single piece with the middle frame 23, thus supplementing the strength of the openings of the middle frame 23.

[0058] To further reduce the space occupied by the mobile phone battery, the middle frame 23 can be made thinner. However, when the thickness of the middle frame 23 is less than 0.3 mm, there are problems such as large processing errors and low yield, which make the middle frame 23 unable to be mass-produced.

[0059] In order to solve the above technical problem, Figure 4 FIG. 4 is a schematic structural diagram of a display device of an LCD display panel according to another exemplary embodiment of the present disclosure.

[0060] In some embodiments, as Figure 4 As shown, the display device 2 also includes a support plate 26. The support plate 26 mainly supports and fixes the fingerprint module 22. The support plate 26 can be a metal plate or plastic plate with a certain supporting strength, such as a steel plate, an aluminum alloy plate or a polycarbonate plate, a polyvinyl chloride plate. In this embodiment, the support plate 26 is preferably a steel plate. The support plate 26 includes a U-shaped plate and a bending portion arranged on both sides of the U-shaped plate, and the fingerprint module 22 is arranged in the recessed portion of the U-shaped plate. Preferably, the surface of the support plate 26 facing away from the fingerprint module 22 and the surface of the middle frame 23 facing away from the LCD display panel 24 form the same plane. Therefore, more space can be provided for the mobile phone battery.

[0061] In some embodiments, as Figure 4 As shown, the accommodating space 21 is a through hole that passes through the middle frame 23. The U-shaped plate of the support plate 26 is disposed within the through hole, and the bent portion of the support plate 26 is attached to the middle frame 23. Specifically, a through hole can be opened in the middle frame 23, the fingerprint module 22 can be assembled to the U-shaped plate of the support plate 26, and then the bent portion of the support plate 26 can be attached to a surface of the middle frame 23 near the LCD display panel 24.

[0062] In this embodiment, the display device 2 adds a support plate 26. The support plate 26 can be made less than 0.3 mm, and there is no problem of being unable to mass produce. Therefore, the middle frame 23 can be further thinned. For example, the thickness of the middle frame 23 can be close to 0.3 mm, so that the battery space on the side of the middle frame 23 away from the LCD display panel 24 becomes larger, thereby increasing the battery capacity and improving the battery life of the mobile phone. In addition, the support plate 26 can reinforce the strength of the through hole of the middle frame 23, thereby improving the strength of the entire machine. In addition, when the fingerprint module 22 needs to be repaired or replaced, there is no need to disassemble the display panel 24 and the middle frame 23. It is only necessary to disassemble the support plate 26 equipped with the fingerprint module 22 from the side of the middle frame 23 away from the LCD display panel. Disassembly and maintenance are convenient, which is conducive to improving maintenance efficiency.

[0063] Figure 5 FIG. 4 is a schematic structural diagram of a display device of an LCD display panel according to another exemplary embodiment of the present disclosure.

[0064] In some embodiments, as Figure 5 As shown, the accommodating space 21 is a through hole that passes through the middle frame 23 and is formed into a stepped through hole having a first through hole 211 and a second through hole 212. The U-shaped plate of the support plate 26 is disposed in the first through hole 211, and the bent portion of the support plate 26 is attached to the stepped surface of the first through hole 211 and the second through hole 212.

[0065] In this embodiment, preferably, a first through hole 211 and a second through hole 212 of different diameters can be opened on the middle frame 23. The diameter of the first through hole 211 is larger than the diameter of the second through hole 212, and the first through hole 211 is located on the side close to the LCD display panel 24. During assembly, the reinforcement plate of the fingerprint module 22 is first attached to the recessed portion of the U-shaped plate of the support plate 26, and then the support plate 26 is reversed from the side of the middle frame 23 facing away from the LCD display panel 24, that is, the bent portion of one side of the U-shaped plate of the support plate 26 is first attached to the stepped surface formed by the first through hole 211 and the second through hole 212, and then the bent portion of the other side of the U-shaped plate of the support plate 26 is attached to the stepped surface formed by the first through hole 211 and the second through hole 212.

[0066] This embodiment further thins the middle frame 23, increasing the battery space on the side of the middle frame 23 facing away from the LCD display panel 24. This increases the battery capacity and the phone's battery life. Furthermore, the support plate 26 reinforces the strength of the through-holes in the middle frame 23, thereby increasing the strength of the entire device. Furthermore, when the fingerprint module 22 needs to be repaired or replaced, there is no need to disassemble the display panel 24 from the middle frame 23. Instead, the support plate 26 with the fingerprint module 22 installed can be removed from the side of the middle frame 23 facing away from the display panel. This facilitates disassembly and maintenance, improving repair efficiency.

[0067] Figure 11 FIG1 is a schematic top view of the assembly of a fingerprint module and a sealing foam according to an exemplary embodiment of the present disclosure. Figure 12 is based on Figure 11 The embodiment shown is a front view schematic diagram of the assembly of the fingerprint module and the sealing foam.

[0068] In some embodiments, as Figure 11 and Figure 12 As shown, the fingerprint module 22 further includes a sealing foam 224 disposed between the display panel 24 and the reinforcing plate 223. The sealing foam 224 is disposed around the fingerprint chip 222. The addition of the sealing foam 240 can prevent dust from entering the fingerprint module 22 and improve the sealing performance of the fingerprint module 22.

[0069] The display device provided by another embodiment of the present disclosure may also be a display device with an OLED display panel.

[0070] Figure 6FIG. 1 is a structural diagram of a display device of an OLED screen according to another exemplary embodiment of the present disclosure. Figure 6 As shown, the display device 2 of this embodiment includes an organic liquid crystal display panel 24' (OLED display panel 24'), a middle frame 23 supporting the OLED display panel 24', and a fingerprint module 22 located between the OLED display panel 24' and the middle frame 23. The middle frame 23 is provided with an accommodating space 21 for accommodating the fingerprint module 22. The fingerprint module 22 is located within the operable display area 247' of the OLED display panel 24'.

[0071] In this embodiment, a hole is opened in the auxiliary material (eg, foam, PI, copper foil) under the OLED screen to allow light to pass through the hole and illuminate the fingerprint recognition area of ​​the fingerprint module 22.

[0072] In this embodiment, the OLED display panel 24' is a self-luminous display panel. The light it emits can pass through the display panel to illuminate the display panel normally. External light can also enter the display panel and pass through the display panel to illuminate the fingerprint module, without the need for an additional light source.

[0073] The fingerprint module 22 is arranged between the display panel 24' and the middle frame 23, and at least a part of the fingerprint module 22 is arranged in the accommodating space. The fingerprint module 22 includes a circuit board 221 and a fingerprint chip 222 attached to the first side of the circuit board 221. The fingerprint chip 222 faces the display panel 24', and the circuit board 221 is located in the accommodating space 21. Among them, the overall thickness of the fingerprint module can be less than 0.45mm. The fingerprint chip 222 is light and thin, so that the overall thickness of the fingerprint module can be less than 0.45mm. In addition, the fingerprint module 22 avoids occupying the cavity between the middle frame 23 and the back cover (not shown), providing more space for stacking other components in the mobile phone, which is conducive to the ultra-thinness of the entire machine.

[0074] In some embodiments, as Figure 6 As shown, the fingerprint module 22 also includes a reinforcement plate 223 disposed within the accommodating space 21. The reinforcement plate 223 is bonded to the second surface of the circuit board 221 and connected to the middle frame 23, with the second surface of the circuit board 221 facing the first surface. The reinforcement plate 223 is connected to the middle frame 23 to provide additional strength within the accommodating space.

[0075] In one example, the reinforcing plate 223 can be a metal or plastic plate with a certain degree of support strength, such as a steel plate, aluminum alloy plate, polycarbonate plate, or polyvinyl chloride plate. In this embodiment, a steel plate is preferably used and fixedly mounted within the accommodating space 21 by bonding or welding. The steel plate has a certain degree of support strength, which can provide support for the fingerprint module 22 and improve the strength of the fingerprint module 22.

[0076] In some embodiments, as Figure 6 As shown, the accommodating space 21 is a groove set in the middle frame 23, and the reinforcing plate 223 is attached to the bottom surface of the groove. Specifically, a blind hole can be opened on the surface of the middle frame 23 near the OLED display panel 24', and the reinforcing plate 223 is fixedly attached to the bottom of the blind hole.

[0077] This assembly method prevents the fingerprint module 22 from occupying the cavity between the middle frame 23 and the back cover (not shown). This eliminates the need to reserve assembly space for the fingerprint module 22, providing more space for stacking other components in the phone and contributing to the phone's ultra-thin design. Furthermore, the middle frame 23 does not require a hole; the groove is integrally formed with the middle frame 23, thereby increasing the strength of the middle frame 23 and, by extension, the entire phone.

[0078] Figure 7 FIG. 1 is a schematic diagram of a structure of a display device of an OLED screen according to another exemplary embodiment of the present disclosure. Figure 7 As shown, the accommodating space 21 is a through hole that passes through the middle frame 23, and the through hole is formed as a stepped through hole having a first through hole 211 and a second through hole 212. In this embodiment, preferably, a first through hole 211 and a second through hole 212 of different diameters can be opened on the middle frame 23, the diameter of the first through hole 211 is smaller than the diameter of the second through hole 212, and the first through hole 211 is located on the side close to the OLED display panel 24'. The fingerprint chip 222 is arranged in the first through hole 211, and the reinforcement plate 223 is arranged in the second through hole 212 and is attached to the stepped surface formed by the first through hole 211 and the second through hole 212. During assembly, the reinforcement plate 223 in the fingerprint module 22 is reversed from the side of the middle frame 23 facing away from the OLED display panel 24', and is attached to the stepped surface of the first through hole 211 and the second through hole 212.

[0079] Figure 8 FIG. 1 is a schematic diagram of a structure of a display device of an OLED screen according to another exemplary embodiment of the present disclosure. Figure 8 As shown, the display device 2 also includes a support plate 26. The support plate 26 mainly supports and fixes the fingerprint module 22. The support plate 26 can be a metal plate or plastic plate with a certain supporting strength, such as a steel plate, an aluminum alloy plate or a polycarbonate plate, a polyvinyl chloride plate. In this embodiment, the support plate 26 is preferably a steel plate. The support plate 26 includes a U-shaped plate and a bending portion arranged on both sides of the U-shaped plate, and the fingerprint module 22 is arranged in the recessed portion of the U-shaped plate. Preferably, the surface of the support plate 26 facing away from the fingerprint module 22 and the surface of the middle frame 23 facing away from the OLED display panel 24' form the same plane. Therefore, more space can be provided for the mobile phone battery.

[0080] In some embodiments, as Figure 8As shown, the accommodating space 21 is a through hole that passes through the middle frame 23. The U-shaped plate of the support plate 26 is disposed within the through hole, and the bent portion of the support plate 26 is attached to the middle frame 23. Specifically, a through hole can be opened in the middle frame 23, the fingerprint module 22 can be assembled to the U-shaped plate of the support plate 26, and then the bent portion of the support plate 26 can be attached to a surface of the middle frame 23 near the OLED display panel 24'.

[0081] In this embodiment, when the fingerprint module 22 needs to be repaired or replaced, there is no need to disassemble the OLED display panel 24' and the middle frame 23. Instead, it is only necessary to disassemble the support plate 26 equipped with the fingerprint module 22 from the side of the middle frame 23 facing away from the OLED display panel 24'. This facilitates disassembly and maintenance, and helps improve maintenance efficiency.

[0082] Figure 9 FIG. 1 is a schematic diagram of a structure of a display device of an OLED screen according to another exemplary embodiment of the present disclosure. Figure 9 As shown, the accommodating space 21 is a through hole that passes through the middle frame 23 and is formed into a stepped through hole having a first through hole 211 and a second through hole 212. The U-shaped plate of the support plate 26 is disposed in the first through hole 211, and the bent portion of the support plate 26 is attached to the stepped surface of the first through hole 211 and the second through hole 212.

[0083] In this embodiment, preferably, a first through hole 211 and a second through hole 212 of different diameters can be opened on the middle frame 23. The diameter of the first through hole 211 is larger than the diameter of the second through hole 212, and the first through hole 211 is located on the side close to the OLED display panel 24'. During assembly, first, the reinforcement plate of the fingerprint module 22 is attached to the recessed portion of the U-shaped plate of the support plate 26, and then the support plate 26 is reversed from the side of the middle frame 23 away from the OLED display panel 24', that is, first, the bent portion of one side of the U-shaped plate of the support plate 26 is attached to the stepped surface formed by the first through hole 211 and the second through hole 212, and then the bent portion of the other side of the U-shaped plate of the support plate 26 is attached to the stepped surface formed by the first through hole 211 and the second through hole 212.

[0084] This embodiment further thins the middle frame 23, increasing the battery space on the side of the middle frame 23 facing away from the OLED display panel 24', thereby increasing the battery capacity and improving the battery life of the phone. Furthermore, the support plate 26 can reinforce the strength of the through-holes in the middle frame 23, thereby increasing the strength of the entire device. Furthermore, when the fingerprint module 22 needs to be repaired or replaced, there is no need to disassemble the OLED display panel 24' from the middle frame 23. Instead, the support plate 26 with the fingerprint module 22 installed can be removed from the side of the middle frame 23 facing away from the display panel. This makes disassembly and maintenance easy, which helps improve maintenance efficiency.

[0085] It is further understood that in the present disclosure, "plurality" refers to two or more than two, and other quantifiers are similar. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the related objects before and after are in an "or" relationship. The singular forms "a", "the" and "the" are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0086] It will be further understood that the terms "first," "second," and the like are used to describe various types of information, but such information should not be limited to these terms. These terms are used solely to distinguish information of the same type from one another and do not indicate a particular order or level of importance. In fact, the terms "first," "second," and the like are fully interchangeable. For example, first information could be referred to as second information, and similarly, second information could be referred to as first information without departing from the scope of this disclosure.

[0087] It is further understood that although operations are described in a particular order in the drawings in the embodiments of the present disclosure, this should not be construed as requiring that the operations be performed in the particular order shown or in a serial order, or that all of the operations shown be performed to obtain the desired results. In certain circumstances, multitasking and parallel processing may be advantageous.

[0088] Other embodiments of the present disclosure will readily occur to those skilled in the art after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the present disclosure being indicated by the following claims.

[0089] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A display device, characterized in that: include: Display panel; a middle frame, used to support the display panel, wherein the middle frame is provided with an accommodating space; as well as A fingerprint module is disposed between the display panel and the middle frame, and at least a portion of the fingerprint module is disposed in the accommodating space. The fingerprint module includes a circuit board and a fingerprint chip attached to a first surface of the circuit board; The fingerprint chip faces the display panel; The circuit board is located in the accommodating space; The fingerprint module further includes a reinforcement plate, which is a metal plate or a plastic plate; The reinforcing plate is bonded to the second surface of the circuit board; The second surface of the circuit board is opposite to the first surface; The reinforcing plate is located in the accommodating space and is connected to the middle frame. The reinforcing plate is used to supplement the strength of the middle frame in the accommodating space.

2. The display device according to claim 1, wherein The accommodating space is a groove provided in the middle frame; The reinforcing plate is attached to the bottom surface of the groove.

3. The display device according to claim 1, wherein The accommodating space is a through hole that passes through the middle frame; The through hole is formed as a stepped through hole having a first through hole and a second through hole; The fingerprint chip is arranged in the first through hole; The reinforcing plate is disposed in the second through hole and adheres to the stepped surfaces of the first through hole and the second through hole.

4. The display device according to claim 3, wherein A diameter of the first through hole is smaller than a diameter of the second through hole.

5. The display device according to claim 1, wherein The display device further includes a support plate; The support plate includes a U-shaped plate and bending portions arranged on both sides of the U-shaped plate; The fingerprint module is arranged in the recessed portion of the U-shaped plate.

6. The display device according to claim 5, wherein: The accommodating space is a through hole that passes through the middle frame; The U-shaped plate of the support plate is disposed in the through hole; The bent portion of the support plate is attached to the middle frame.

7. The display device according to claim 5, wherein: The accommodating space is a through hole that passes through the middle frame; The through hole is formed as a stepped through hole having a first through hole and a second through hole; The U-shaped plate of the support plate is disposed in the first through hole; The bent portion of the support plate is attached to the stepped surfaces of the first through hole and the second through hole.

8. The display device according to claim 7, wherein: The surface of the support plate facing away from the fingerprint module and the surface of the middle frame facing away from the display panel form a same plane.

9. The display device according to any one of claims 1 to 8, characterized in that The fingerprint module further includes sealing foam; The sealing foam is arranged around the fingerprint chip.

10. The display device according to any one of claims 1 to 8, characterized in that The thickness of the fingerprint module is less than 0.45 mm.

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