CN113095117A

CN113095117A - Display device

Info

Publication number: CN113095117A
Application number: CN202010019176.7A
Authority: CN
Inventors: 娄椿杰
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2020-01-08
Filing date: 2020-01-08
Publication date: 2021-07-09

Abstract

The present disclosure relates to a display device including a display panel; the middle frame is used for supporting the display panel and is provided with an accommodating space; the fingerprint module sets up between display panel and center, and the at least partly setting of fingerprint module is in the accommodation space, and the fingerprint module includes the circuit board and with the fingerprint chip of the first face laminating of circuit board, fingerprint chip towards display panel, the circuit board is located the accommodation space. The display equipment of the embodiment of the disclosure avoids the fingerprint module from occupying the cavity between the middle frame and the back cover, provides more space for stacking other parts, and is beneficial to ultra-thinning of the whole machine.

Description

Display device

Technical Field

The present disclosure relates to the field of electronic devices, and more particularly, to a display device.

Background

Electronic equipment such as mobile phones, tablet computers and intelligent wearable devices have become essential tools for people in life, entertainment and work.

The technology of finger print under the screen is widely applied to electronic equipment at present. The shell is a part forming an appearance structure in the electronic equipment and is a structure which can be directly touched by a user, and the shell mainly plays a role in protection. The casing of the electronic device usually includes a middle frame, and in the case of a common electronic device, such as a mobile phone, the middle frame is a portion of the casing that forms a side surface of the mobile phone. Transparent cover plate is usually installed to one side of center, and the back of the body lid is installed to the opposite side to form a cavity, display module assembly, fingerprint module, battery isotructure all are located this cavity.

In the correlation technique, the center trompil, the fingerprint module is located between center and the back of the body lid, and the part is located in the trompil, because, the fingerprint module occupies the space between center and the back of the body lid, leads to the fact great influence to piling up of other parts in this space, and is unfavorable for the ultra-thin of complete machine. In addition, the size of fingerprint module self also receives the restriction because of the piling up of other parts, influences the fingerprint identification area.

Disclosure of Invention

To overcome the problems in the related art, the present disclosure provides a display device.

According to an aspect of an embodiment of the present disclosure, there is provided a display apparatus including a display panel; the middle frame is used for supporting the display panel and is provided with an accommodating space; the fingerprint module sets up between display panel and center, and the at least part setting of fingerprint module is in the accommodation space, and the fingerprint module includes the circuit board and with the fingerprint chip of the first face laminating of circuit board, fingerprint chip towards display panel, the circuit board is located in the accommodation space.

In one example, the fingerprint module further comprises a reinforcing plate; the reinforcing plate is attached to the second surface of the circuit board and connected with the middle frame; the second surface of the circuit board is opposite to the first surface; the reinforcing plate is positioned in the accommodating space and is connected with the middle frame.

In one example, the accommodating space is a groove arranged on the middle frame; the reinforcing plate is attached to the bottom surface of the groove.

In one example, the accommodating space is a through hole penetrating 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 arranged in the second through hole and is attached to the stepped surface of the first through hole and the stepped surface of the second through hole.

In one example, the diameter of the first through hole is smaller than the diameter of the second through hole.

In one example, the display device further includes a support plate including a U-shaped plate and bending portions provided at both sides of the U-shaped plate; the fingerprint module sets up in the depressed part of U template.

In one example, the accommodating space is a through hole penetrating through the middle frame; the U-shaped plate of the supporting plate is arranged in the through hole; the bending part of the supporting plate is attached to the middle frame.

In one example, the accommodating space is a through hole penetrating 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 supporting plate is arranged in the first through hole; the bending part of the supporting plate is attached to the stepped surface of the first through hole and the second through hole.

In one example, the surface of the support plate facing away from the reinforcing plate and the surface of the middle frame facing away from the display screen form the same plane.

In one example, the fingerprint module further comprises a sealing foam; the sealed foam is arranged around the fingerprint chip.

In one example, the display panel is an LCD liquid crystal display panel.

In one example, the display panel is an organic light emitting diode OLED display panel.

In one example, the display device further comprises a light source; the light source is arranged on the middle frame.

In one example, the thickness of the fingerprint module is 0.45mm or less.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: the fingerprint module is located between display panel and the center to the part is arranged in the accommodation space of center, has avoided the fingerprint module to occupy the cavity between center and the back of the body lid, has provided more spaces for piling up of other parts, does benefit to the ultra-thin of complete machine.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

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 disclosure.

Fig. 1 is a schematic configuration diagram of a display device with an LCD display panel in the related art.

Fig. 2 is a schematic structural diagram illustrating a display device with an LCD display panel according to an exemplary embodiment of the present disclosure.

Fig. 3 is a schematic structural diagram illustrating a display device with an LCD display panel according to another exemplary embodiment of the present disclosure.

Fig. 4 is a schematic structural diagram illustrating a display device with an LCD display panel according to still another exemplary embodiment of the present disclosure.

Fig. 5 is a schematic structural view illustrating a display device with an LCD display panel according to still another exemplary embodiment of the present disclosure.

Fig. 6 is a schematic structural view illustrating a display device with an OLED display panel according to still another exemplary embodiment of the present disclosure.

Fig. 7 is a schematic structural view illustrating a display device with an OLED display panel according to still another exemplary embodiment of the present disclosure.

Fig. 8 is a schematic structural view illustrating a display device with an OLED display panel according to still another exemplary embodiment of the present disclosure.

Fig. 9 is a schematic structural view illustrating a display device with an OLED display panel according to still another exemplary embodiment of the present disclosure.

FIG. 10 is a schematic diagram illustrating different fingerprint module fingerprint identification areas according to an exemplary embodiment of the present disclosure.

Figure 11 is a schematic top view of a fingerprint module and sealed foam assembly according to an exemplary embodiment of the present disclosure.

Fig. 12 is a schematic front view of the fingerprint module assembled with the sealed foam according to the embodiment shown in fig. 11.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations 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.

Fig. 1 is a schematic configuration diagram 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 the reverse direction of visible light, the LCD display panel cannot provide a light source for the fingerprint module. Therefore, as shown in fig. 1, in the display device 1 with the LCD display panel, 940nm infrared light needs to be additionally added as the light source 14.

In fig. 1, the display device 1 includes a through hole 12 disposed in a middle frame 11, a fingerprint module 13 disposed in the through hole 12, and a light source 14.

The middle frame 11 is fixedly connected with an LCD display panel 15, and an operable display area is arranged 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.

The fingerprint module 13 is fixed in the surface of one side of center 11 that deviates from LCD display panel 15, and is located the through-hole 12, and the light source 14 sets up the lower lateral wall at center 10. The light source 14 is an infrared LED lamp, the infrared LED lamp emits infrared light to form incident light d, the incident light d irradiates to the finger lines through the LCD display panel, and then is reflected by the finger fingerprint path to form reflected light e, and the fingerprint module 13 receives the reflected light e and determines the fingerprint of the finger through the reflected light e.

As shown in fig. 1, the fingerprint module 13 is located on a side surface of the middle frame 11 facing away from the LCD display panel 15. The sensor in the fingerprint module 13 adopts a lens, the size of the lens in the Z direction is large, generally between 2mm and 3mm, the fingerprint module 13 occupies the space between the middle frame and the back cover, the stacking of other parts in the space is greatly influenced, and the ultra-thinning of the whole machine is not facilitated. In addition, the through holes 12 in the middle frame 11 also affect the strength of the whole machine.

Furthermore, because the size of the fingerprint module 13 itself is limited by the stacking of other components. The sensor lens can only realize single small-area fingerprint identification A, and the identification area is small, so that the unlocking performance is low, and the user experience is influenced.

In addition, the distance between fingerprint identification district and LCD display panel 15 of fingerprint module 13 is far away, leads to fingerprint identification speed slow, and the unblock performance is poor, influences user experience.

In view of this, the disclosed embodiments provide a display device. Fig. 2 is a schematic structural diagram of a display device of an LCD display panel shown according to an exemplary embodiment of the present disclosure.

In the embodiment of the present disclosure, the display device may be a mobile phone, a tablet computer, an intelligent wearable device, a personal digital assistant, or the like. In the following description, a mobile phone is taken as an example, but the present invention is not limited thereto.

As shown in fig. 2, the display device 2 of the present 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 a side wall of the middle frame 23.

In this embodiment, the LCD display panel 24 may include a glass cover 241, an Optically Clear Adhesive (OCA)242, a Color Filter (CF)243, a Thin Film Transistor (TFT)244, a backlight film 245, and a backlight bezel 246, which are sequentially stacked. The backlight bezel 246 is formed with a through hole so that light can pass through the through hole to irradiate the fingerprint identification area of the fingerprint module 22. The LCD display panel 24 is further provided with an operable display area 247 and an ink area 248 (non-display area), and the fingerprint module 22 is located in the operable display area 247 to ensure accurate identification of the fingerprint.

The fingerprint module 22 is used for identifying the fingerprint of the user, so as to achieve the purpose of identifying whether the access of the current user is legal or not. The fingerprint module 22 is disposed between the display panel 24 and the middle frame 23, and at least a portion of the fingerprint module 22 is disposed 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. Wherein, the whole thickness of fingerprint module can be below 0.45 mm. The fingerprint chip 222 is used for image acquisition, feature extraction, and feature comparison of a fingerprint, so as to realize a fingerprint identification function.

The fingerprint chip 222 has a light and thin structure, so that the overall thickness of the fingerprint module can be less than 0.45 mm. Therefore, the fingerprint module 22 occupies a small area of the whole machine.

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 accommodating space 21 of the middle frame 23, so that the fingerprint module 22 is prevented from occupying a cavity between the middle frame 23 and a back cover (not shown), more space is provided for stacking other components in the mobile phone, and the ultra-thinning of the whole mobile phone is facilitated. Moreover, the size of the fingerprint module 22 itself is not limited by other components, and then the fingerprint module 22 can be properly increased, so that more micro lenses 222a can be arranged on the fingerprint chip 222, and therefore the fingerprint identification area B (shown in fig. 10) of the fingerprint module 22 is increased, the unlocking performance is improved, and the user experience is improved. In addition, the fingerprint identification district of fingerprint module 22 is closer to display panel 24, makes fingerprint module 22's fingerprint identification speed improve, and then promotes the unblock performance.

In some embodiments, as shown in FIG. 2, the fingerprint module 22 further comprises a stiffener 223. The reinforcing plate 223 is attached to the second surface of the circuit board 221 and connected to the middle frame 23, and the second surface of the circuit board 221 is opposite to the first surface. The reinforcing plate 223 is located in the accommodating space 21 and connected to the middle frame 23. The reinforcing plate 223 mainly supports the fingerprint chip 222 and the circuit board 221, and the overall strength of the fingerprint module 22 is improved. In addition, the reinforcing plate 223 is connected with the middle frame 23, so that the strength of the accommodating space of the middle frame 23 can be supplemented. To further reduce the overall thickness of the fingerprint module 22, the circuit board 221 may 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 0.15 mm.

In one example, the reinforcing plate 223 may be a metal plate or a plastic plate having a certain supporting strength, such as a steel plate, an aluminum alloy plate or a polycarbonate plate, and a polyvinyl chloride plate. The steel plate is preferably adopted in the embodiment and is fixedly connected with the middle frame in a bonding or welding mode and the like. The steel sheet has certain support intensity, can play the supporting role to fingerprint module 22, improves fingerprint module 22's intensity.

In some embodiments, as shown in fig. 2, the accommodating space 21 is a groove disposed on the middle frame 23, and the reinforcing plate 223 is attached to a bottom surface of the groove. Specifically, a blind hole may be formed on the surface of the middle frame 23 close to the LCD display panel 24, and the reinforcing plate 223 is fixedly attached to the bottom of the blind hole.

In this embodiment, the accommodating space 21 is a groove structure formed on the middle frame 23, and the fingerprint module 22 is disposed in the groove of the middle frame 23. By adopting the assembly mode, the fingerprint module 22 is prevented from occupying a cavity between the middle frame 23 and the back cover (not shown), more space is provided for stacking other parts in the mobile phone, and the ultra-thinning of the whole mobile phone is facilitated. In addition, the middle frame 23 does not need to be provided with a through hole, and the groove and the middle frame 23 are in an integral structure, so that the strength of the middle frame 23 is improved, and the strength of the whole machine is further improved.

In the above embodiment, when the fingerprint module 22 needs to be maintained or replaced, the LCD display panel 24 of the mobile phone needs to be detached from the middle frame 23, and then the fingerprint module 22 is taken out from the groove of the middle frame 23, which can cause the problems of inconvenience in detachment, maintenance and replacement.

To solve the problems in one embodiment described above, fig. 3 is a schematic structural diagram of a display device of an LCD display panel shown according to another exemplary embodiment of the present disclosure.

In some embodiments, as shown in fig. 3, the accommodating space 21 is a through hole penetrating 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, it is preferable that the middle frame 23 is provided with a first through hole 211 and a second through hole 212, the diameter of the first through hole 211 is smaller than that of the second through hole 212, and the first through hole 211 is located at a side close to the LCD display panel 24. The fingerprint chip 222 is disposed in the first through hole 211, and the stiffener 223 is disposed in the second through hole 212 and attached to a step surface formed by the first through hole 211 and the second through hole 212. During the assembly, with stiffening plate 223 among the fingerprint module 22 from the one side of the back deviation LCD display panel 24 of center frame 23 reverse the dress, laminate in the ladder face of first through-hole 211 and second through-hole 212.

In this embodiment, with fingerprint module 22 anti-dress in the through-hole of center 23, when fingerprint module 22 needs maintenance or change, need not to dismantle screen 24 and center 23, only need with fingerprint module 22 from center 23 deviate from one side of display screen dismantle can, maintenance, change convenience improve after sale repair efficiency. And, the assembly space of fingerprint module 22 reduces, reduces the area occupied to the complete machine, provides more spaces for the piling up of other devices. The reinforcing plate 223 is attached to the stepped surfaces of the first through hole 211 and the second through hole 212, and is integrally connected to the middle frame 23 to supplement the strength of the opening of the middle frame 23.

In order to further reduce the space occupied by the middle frame 23 in the battery of the mobile phone, the middle frame 23 can be made thin. However, if the thickness of the intermediate frame 23 is less than 0.3mm, the processing error is large, the yield is low, and the intermediate frame 23 cannot be mass-produced.

In order to solve the above-mentioned technical problem, fig. 4 is a schematic structural diagram of a display device of an LCD display panel according to still another exemplary embodiment of the present disclosure.

In some embodiments, as shown in FIG. 4, the display device 2 further comprises a support plate 26. The supporting plate 26 mainly supports and fixes the fingerprint module 22. The supporting plate 26 may be a metal plate or a plastic plate having a certain supporting strength, such as a steel plate, an aluminum alloy plate or a polycarbonate plate, a polyvinyl chloride plate, and the supporting plate 26 of this embodiment is preferably a steel plate. The supporting plate 26 comprises a U-shaped plate and bending parts arranged on two sides of the U-shaped plate, and the fingerprint module 22 is arranged in the concave part of the U-shaped plate. Preferably, the surface of the supporting 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.

In some embodiments, as shown in fig. 4, the accommodating space 21 is a through hole penetrating through the middle frame 23, a U-shaped plate of the supporting plate 26 is disposed in the through hole, and the bent portion of the supporting plate 26 is attached to the middle frame 23. Specifically, a through hole may be opened on the middle frame 23, the fingerprint module 22 is assembled to the U-shaped plate of the supporting plate 25, and then the bending portion of the supporting plate 26 is attached to a surface of the middle frame 23 close to the LCD display panel 24.

In the embodiment, the supporting plate 25 is added to the display device 2, the supporting plate 25 can be less than or equal to 0.3mm, and the problem that mass production cannot be realized does not exist. Therefore, the middle frame 23 can be further thinned, for example, the thickness of the middle frame 23 can be close to 0.3mm, so that the battery space on the side of the middle frame 23 away from the LCD display panel 24 is enlarged, and further, the capacity of the battery can be increased, and the cruising ability of the mobile phone can be improved. Moreover, the supporting plate 26 can reinforce the strength of the through hole of the middle frame 23, thereby improving the strength of the whole machine. In addition, when fingerprint module 22 needs maintenance, change, need not to dismantle screen 23 and center 23, only need will be equipped with backup pad 26 of fingerprint module 22 and dismantle from one side that deviates from LCD display panel of center 23 can, dismantle easy maintenance, be favorable to improving maintenance efficiency.

Fig. 5 is a schematic structural diagram of a display device of an LCD display panel according to still another exemplary embodiment of the present disclosure.

In some embodiments, as shown in fig. 5, the accommodating space 21 is a through hole penetrating 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. The U-shaped plate of the supporting plate 26 is disposed in the first through hole 211, and the bent portion of the supporting plate 26 is attached to the stepped surfaces of the first through hole 211 and the second through hole 222.

In this embodiment, the middle frame 23 may be provided with a first through hole 211 and a second through hole 212 having different diameters. The diameter of the first through hole 211 is smaller than that of the second through hole 212, and the first through hole 211 is located at a side away from the LCD display panel 24. During the assembly, at first with the stiffening plate laminating of fingerprint module 22 in the depressed part of the U-shaped board of backup pad 25, then with backup pad 26 from the one side of center 23 deviating from LCD display panel 24 reverse dress, laminate the ladder face that first through-hole 211 and second through-hole 222 formed with the kink of one side of the U-shaped board of backup pad 26 promptly, laminate the ladder face that first through-hole 211 and second through-hole 222 formed with the kink of the other side of the U-shaped board of backup pad 26 again.

The embodiment further thins the middle frame 23, so that the battery space on the side of the middle frame 23 away from the LCD display panel 24 is enlarged, the capacity of the battery can be increased, and the cruising ability of the mobile phone can be improved. Moreover, the supporting plate 26 can reinforce the strength of the through hole of the middle frame 23, thereby improving the strength of the whole machine. In addition, when fingerprint module 22 needs maintenance, change, need not to dismantle screen 23 and center 23, only need will be equipped with backup pad 26 of fingerprint module 22 and dismantle from one side of center 23 that deviates from the display screen can, dismantle easy maintenance, be favorable to improving maintenance efficiency.

Figure 11 is a schematic top view of a fingerprint module and sealed foam assembly according to an exemplary embodiment of the present disclosure. Fig. 12 is a schematic front view of the fingerprint module assembled with the sealed foam according to the embodiment shown in fig. 11.

In some embodiments, as shown in fig. 11 and 12, the fingerprint module 22 further includes a sealing foam 224 disposed between the display panel 24 and the stiffener 223, the sealing foam 224 being disposed around the fingerprint chip 222. Increase and seal the cotton 240 of bubble and can prevent that the dust from getting into fingerprint module 22, improve fingerprint module 22's leakproofness.

Another embodiment of the present disclosure may provide a display device that may also be a display device with an OLED display panel.

Fig. 6 is a schematic structural diagram of a display device of an OLED panel according to still another exemplary embodiment of the present disclosure. As shown in fig. 6, the display device 2 of the present 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 in the operable display area 247 'of the OLED display panel 24'.

In this embodiment, the auxiliary material (e.g., foam, PI, copper foil) is perforated under the OLED screen so that the light passes through the through hole and irradiates the fingerprint identification area of the fingerprint module 22.

In this embodiment, the OLED display panel 24' is a self-luminous display screen, and light emitted from the OLED display panel can pass through the display screen to illuminate, so that the display screen can normally display images, and external light can also enter the display screen and pass through the display screen to illuminate the fingerprint module without an additional light source.

The fingerprint module 22 is disposed between the display panel 24 and the middle frame 23, and at least a portion of the fingerprint module 22 is disposed 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. Wherein, the whole thickness of fingerprint module can be below 0.45 mm. The fingerprint chip 222 has a light and thin structure, so that the overall thickness of the fingerprint module can be less than 0.45 mm. And the fingerprint module 22 avoids occupying a cavity between the middle frame 23 and the back cover (not shown), so that more space is provided for stacking other components in the mobile phone, and the ultra-thinning of the whole mobile phone is facilitated.

In some embodiments, as shown in fig. 6, the fingerprint module 22 further includes a reinforcing plate 223 disposed in the accommodating space 21. The reinforcing plate 223 is attached to the second surface of the circuit board 221 and connected to the middle frame 23, and the second surface of the circuit board 221 is opposite to the first surface. The reinforcing plate 223 is connected with the middle frame 23, so that the strength of the accommodating space of the middle frame 23 can be supplemented.

In one example, the reinforcing plate 223 may be a metal plate or a plastic plate having a certain supporting strength, such as a steel plate, an aluminum alloy plate or a polycarbonate plate, and a polyvinyl chloride plate. In the present embodiment, a steel plate is preferably used and is fixedly installed in the accommodating space 21 by bonding or welding. The steel sheet has certain support intensity, can play the supporting role to fingerprint module 22, improves fingerprint module 22's intensity.

In some embodiments, as shown in fig. 6, the accommodating space 21 is a groove disposed on the middle frame 23, and the reinforcing plate 223 is attached to a bottom surface of the groove. Specifically, a blind hole may be formed on the surface of the middle frame 23 close to the OLED display panel 24', and the reinforcing plate 223 is fixedly attached to the bottom of the blind hole.

By the assembly mode, the fingerprint module 22 is prevented from occupying a cavity between the middle frame 23 and the back cover (not shown), an assembly space does not need to be reserved for the fingerprint module 22, more space is provided for stacking other components in the mobile phone, and ultra-thinning of the whole mobile phone is facilitated. In addition, the middle frame 23 does not need to be provided with holes, and the grooves and the middle frame 23 are of an integrated structure, so that the strength of the middle frame 23 is improved, and the strength of the whole machine is further improved.

Fig. 7 is a schematic structural diagram of a display device of an OLED panel according to another exemplary embodiment of the present disclosure. In some embodiments, as shown in fig. 7, the accommodating space 21 is a through hole penetrating 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, the middle frame 23 may be provided with a first through hole 211 and a second through hole 212 having different diameters, the diameter of the first through hole 211 is smaller than that of the second through hole 212, and the first through hole 211 is located at a side close to the OLED display panel 24'. The fingerprint chip 222 is disposed in the first through hole 211, and the stiffener 223 is disposed in the second through hole 212 and attached to a step surface formed by the first through hole 211 and the second through hole 212. During the assembly, with the stiffening plate 223 among the fingerprint module 22 from the one side of the centre frame 23 deviating from OLED display panel 24' the reverse dress, laminate in the ladder face of first through-hole 211 and second through-hole 212.

Fig. 8 is a schematic structural diagram of a display device of an OLED panel according to still another exemplary embodiment of the present disclosure. In some embodiments, as shown in fig. 8, the display device 2 further comprises a support plate 25. The supporting plate 25 mainly supports and fixes the fingerprint module 22. The supporting plate 25 may be a metal plate or a plastic plate having a certain supporting strength, such as a steel plate, an aluminum alloy plate or a polycarbonate plate, a polyvinyl chloride plate, and the supporting plate 25 of this embodiment is preferably a steel plate. The supporting plate 25 comprises a U-shaped plate and bending portions arranged on two sides of the U-shaped plate, and the fingerprint module 22 is arranged in the concave portion of the U-shaped plate. Preferably, the surface of the supporting 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.

In some embodiments, as shown in fig. 8, the accommodating space 21 is a through hole penetrating through the middle frame 23, a U-shaped plate of the supporting plate 25 is disposed in the through hole, and a bent portion of the supporting plate 25 is attached to the middle frame 23. Specifically, a through hole may be opened on the middle frame 23, the fingerprint module 22 is assembled to the U-shaped plate of the supporting plate 25, and then the bending portion of the supporting plate 25 is attached to a surface of the middle frame 23 close to the OLED display panel 24'.

This embodiment, when fingerprint module 22 needs maintenance, change, need not to dismantle OLED display panel 24 'with center 23, only need will be equipped with the backup pad 25 of fingerprint module 22 and dismantle from one side that deviates from OLED display panel 24' of center 23 can, dismantle easy maintenance, be favorable to improving maintenance efficiency.

Fig. 9 is a schematic structural view of a display device of an OLED panel according to still another exemplary embodiment of the present disclosure. In some embodiments, as shown in fig. 9, the accommodating space 21 is a through hole penetrating 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. The U-shaped plate of the supporting plate 25 is disposed in the first through hole 211, and the bent portion of the supporting plate 25 is attached to the stepped surfaces of the first through hole 211 and the second through hole 222.

In this embodiment, the middle frame 23 may be provided with a first through hole 211 and a second through hole 212 having different diameters. The diameter of the first through hole 211 is smaller than that of the second through hole 212, and the first through hole 211 is located at a side away from the OLED display panel 24'. During the assembly, at first with the stiffening plate laminating of fingerprint module 22 in the depressed part of the U-shaped board of backup pad 25, then with the backup pad 26 from the one side of center 23 deviating from OLED display panel 24' the anti-dress, promptly with the kink of one side of the U-shaped board of backup pad 26 laminating in the ladder face that first through-hole 211 and second through-hole 222 formed earlier, laminate the kink of the other side of the U-shaped board of backup pad 26 in the ladder face that first through-hole 211 and second through-hole 222 formed again.

In this embodiment, the middle frame 23 is further thinned, so that the battery space on the side of the middle frame 23 away from the OLED display panel 24' is enlarged, and the capacity of the battery can be increased, thereby improving the cruising ability of the mobile phone. Moreover, the supporting plate 26 can reinforce the strength of the through hole of the middle frame 23, thereby improving the strength of the whole machine. In addition, when fingerprint module 22 needs maintenance, change, need not to dismantle OLED display panel 24' and center 23, only need will be equipped with backup pad 26 of fingerprint module 22 and dismantle from one side that deviates from the display screen of center 23 can, dismantle easy maintenance, be favorable to improving maintenance efficiency.

It is further understood that the use of "a plurality" in this disclosure means two or more, as other terms are analogous. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. The singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It will be further understood that the terms "first," "second," and the like are used to describe various information and that such information should not be limited by these terms. These terms are only used to distinguish one type of information from another and do not denote a particular order or importance. Indeed, the terms "first," "second," and the like are fully interchangeable. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure.

It is further to be understood that while operations are depicted in the drawings in a particular order, this is not to be understood as requiring that such operations be performed in the particular order shown or in serial order, or that all illustrated operations be performed, to achieve desirable results. In certain environments, multitasking and parallel processing may be advantageous.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may 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, comprising:

a display panel;

the middle frame is used for supporting the display panel and is provided with an accommodating space; and

a fingerprint module disposed between the display panel and the middle frame, at least a portion of the fingerprint module being disposed in the accommodating space,

the fingerprint module comprises a circuit board and a fingerprint chip attached to the first surface of the circuit board;

the fingerprint chip faces the display panel;

the circuit board is located in the accommodating space.

2. The display device according to claim 1,

the fingerprint module further comprises a reinforcing plate;

the reinforcing plate is attached 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 connected with the middle frame.

3. The display device according to claim 2,

the accommodating space is a groove arranged in the middle frame;

the reinforcing plate is attached to the bottom surface of the groove.

4. The display device according to claim 2,

the accommodating space is a through hole penetrating 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 stiffening plate set up in the second through-hole to laminate in first through-hole with the ladder face of second through-hole.

5. The display device according to claim 4,

the diameter of the first through hole is smaller than that of the second through hole.

6. The display device according to claim 1,

the display device further comprises a support plate;

the supporting plate comprises a U-shaped plate and bending parts arranged on two sides of the U-shaped plate;

the fingerprint module set up in the depressed part of U template.

7. The display device according to claim 6,

the accommodating space is a through hole penetrating through the middle frame;

the U-shaped plate of the supporting plate is arranged in the through hole;

the bending part of the supporting plate is attached to the middle frame.

8. The display device according to claim 6,

the accommodating space is a through hole penetrating through the middle frame;

the U-shaped plate of the supporting plate is arranged in the first through hole;

the kink of backup pad laminate in first through-hole with the ladder face of second through-hole.

9. The display device according to claim 8,

the backup pad deviate from the surface of fingerprint module with the surface that deviates from of center the surface of display screen forms the coplanar.

10. The display device according to any one of claims 1 to 9,

the fingerprint module further comprises sealing foam;

the sealed foam is arranged around the fingerprint chip.

11. The display device according to any one of claims 1 to 9,

the thickness of fingerprint module is below 0.45 mm.