Display device and display terminal

Abstract

The present application relates to the technical field of display, and provides a display device and a display terminal. The display device comprises a cover plate, a display screen and a backlight module which are arranged in sequence. The cover plate comprises a main body portion and a light shielding layer which are stacked. An optical sensor is arranged in the backlight module; the optical sensor is provided with a sensing portion used for receiving light; the light shielding layer is provided with a light transmitting portion and a light shielding portion; the orthographic projection of the sensing portion on the light shielding layer is located in the light transmitting portion; and the light transmittance of the light transmitting portion is greater than that of the light shielding portion.

Description

Display device and display terminal

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application with application number 202311456930.3 and application name “Display device and display terminal” filed with the China Patent Office on November 1, 2023, the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the field of display technology, and in particular to a display device and a display terminal. Background Art

[0004] To enable the display device's brightness to adapt to ambient light, an optical sensor must be incorporated into the display device. In related art, incorporating an optical sensor into the display screen of a display device increases the manufacturing complexity and cost of the display screen, and also reduces the display screen's yield. Furthermore, the need for additional optical sensor wiring also increases the display screen's bezel, hindering the need for a narrow bezel.

[0005] Therefore, it is urgent to solve the above technical problems. SUMMARY OF THE INVENTION

[0006] This application aims to achieve low-cost installation of optical sensors in real devices.

[0007] In a first aspect, an embodiment of the present application discloses a display device, comprising:

[0008] The cover plate comprises a main body portion and a light shielding layer which are stacked;

[0009] a display screen, disposed on a side of the light shielding layer away from the main body;

[0010] a backlight module, arranged on a side of the display screen facing away from the cover plate;

[0011] Among them, an optical sensor is provided in the backlight module, and the optical sensor is provided with a sensing part for receiving light. The shading layer is provided with a transparent part and a shading part. The positive projection of the sensing part on the shading layer is located in the transparent part, and the transmittance of the transparent part is greater than the transmittance of the shading part.

[0012] In a second aspect, an embodiment of the present application discloses a display terminal, wherein the display terminal includes a display device, and the display device includes:

[0013] The cover plate comprises a main body portion and a light shielding layer which are stacked;

[0014] a display screen, disposed on a side of the light shielding layer away from the main body;

[0015] a backlight module, arranged on a side of the display screen facing away from the cover plate;

[0016] Among them, an optical sensor is provided in the backlight module, and the optical sensor is provided with a sensing part for receiving light. The shading layer is provided with a transparent part and a shading part. The positive projection of the sensing part on the shading layer is located in the transparent part, and the transmittance of the transparent part is greater than the transmittance of the shading part. Beneficial effects

[0017] The embodiments of the present application disclose a display device and a display terminal. The display device includes a cover plate, a display screen, and a backlight module. The cover plate includes a main body and a light-shielding layer that are stacked. The display screen is arranged on the side of the light-shielding layer away from the main body, and the backlight module is arranged on the side of the display screen away from the cover plate. An optical sensor is provided in the backlight module. The optical sensor is provided with a sensing portion for receiving light. The light-shielding layer is provided with a light-transmitting portion and a light-shielding portion. The orthographic projection of the sensing portion on the light-shielding layer is located in the light-transmitting portion. The light transmittance of the light-transmitting portion is greater than the light transmittance of the light-shielding portion. The present application arranges the optical sensor in the backlight module and arranges the light-transmitting portion on the light-shielding layer of the cover plate so that the orthographic projection of the sensing portion on the light-shielding layer is located in the light-transmitting portion. The light transmittance of the light-transmitting portion is greater than the light transmittance of the light-shielding portion. Ambient light can pass through the light-transmitting portion and enter the sensing portion, thereby realizing the optical sensor's reception of light. Through the above arrangement, the present application can achieve low-cost arrangement of an optical sensor in a display device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] FIG1 is a front view of a display device provided in an embodiment of the present application;

[0019] FIG2 is a partial enlarged schematic diagram of point A in FIG1 ;

[0020] FIG3 is a schematic cross-sectional view of the cross section BB' in FIG2;

[0021] FIG4 is a partially enlarged schematic diagram of the three-dimensional structure of the backlight module in FIG1 ;

[0022] FIG5 is a rear view of a first display device provided in an embodiment of the present application;

[0023] FIG6 is a rear view of a second display device provided in an embodiment of the present application.

[0024] Description of reference numerals:

[0025] 10-cover plate, 11-main body, 12-light shielding layer, 121-transparent part, 122-light shielding part, 20-display screen, 21-first substrate, 22-second substrate, 23-first polarizer, 24-second polarizer, 30-backlight module, 31-bottom frame, 311-side plate, 3110-support part, 3110a-side wall of support part, 3110b-top wall of support part, 312-bottom plate, 3121-opening, 3122- Boss, 32-middle frame, 33-avoidance groove, 34-light bar, 341-first flexible printed circuit board, 342-lamp beads, 3411-first connecting part, 3412-second connecting part, 51-adhesive layer, 52-reflective sheet, 53-light guide plate, 54-optical film, 55-buffer, 40-optical sensor, 41-sensing part, 42-second flexible printed circuit board, s1-width of the first connecting part, s2-width of the second connecting part. Modes for Carrying Out the Invention

[0026] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of this application.

[0027] In this application, the word "exemplary" is used to mean "serving as an example, illustration, or description." Any embodiment described in this application as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is given to enable any person skilled in the art to implement and use the present application. In the following description, details are listed for the purpose of explanation. It should be understood that one of ordinary skill in the art can recognize that the present application can be implemented without using these specific details. In other instances, known structures and processes are not described in detail to avoid obscuring the description of the present application with unnecessary detail. Therefore, the present application is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles disclosed herein.

[0028] The present application provides a display device, as shown in Figures 1 to 6, the display device includes a cover plate 10, a display screen 20, and a backlight module 30. The cover plate 10 includes a main body 11 and a light-shielding layer 12 that are stacked. The display screen 20 is arranged on the side of the light-shielding layer 12 away from the main body 11, and the backlight module 30 is arranged on the side of the display screen 20 away from the cover plate 10; wherein, an optical sensor 40 is provided in the backlight module 30, and the optical sensor 40 is provided with a sensing part 41 for receiving light. The light-shielding layer 12 is provided with a light-transmitting part 121 and a light-shielding part 122. The orthographic projection of the sensing part 41 on the light-shielding layer 12 is located in the light-transmitting part 121, and the transmittance of the light-transmitting part 121 is greater than the transmittance of the light-shielding part 122.

[0029] In this embodiment, the display device may be a liquid crystal display device.

[0030] As shown in Figure 3, the display device includes a cover plate 10, a display screen 20, and a backlight module 30. The display screen 20 can be a liquid crystal panel. The display screen 20 includes a display area and a non-display area provided on at least one side of the display area. The display area is used to display images. The display screen 20 includes a first substrate 21 and a second substrate 22 that are opposed and spaced apart. Liquid crystal (not shown) is provided between the first substrate 21 and the second substrate 22. A first polarizer 23 is provided on the side of the first substrate 21 facing away from the second substrate 22, and a second polarizer 24 is provided on the side of the second substrate 22 facing away from the first substrate 21. The display screen 20 can control the transmittance of light from the backlight module 30, thereby achieving brightness and darkness control of the image.

[0031] The cover plate 10 and the display screen 20 may be bonded together by an adhesive material. For example, the adhesive material may be an optically clear adhesive (OCA), but is not limited thereto.

[0032] The backlight module 30 can be a direct backlight or an edge-type backlight. The backlight module 30 is used to provide a backlight source for the display screen 20. FIG3 shows a case where the backlight module 30 is an edge-type backlight.

[0033] In this embodiment, as shown in Figures 1 to 3, the cover plate 10 includes a main body 11 and a light shielding layer 12, which are stacked. The main body 11 can be made of a transparent material such as glass or polyimide. The light shielding layer 12 can be a film layer with light shielding capabilities, such as ink.

[0034] The central area of ​​the cover plate 10 is provided with only the main body 11, while the edge areas of the cover plate 10 are provided with the main body 11 and the light-shielding layer 12. In other words, the central area of ​​the cover plate 10 is not provided with the light-shielding layer 12. The central area of ​​the cover plate 10 corresponds to the display area of ​​the display screen 20, while the edge areas of the cover plate 10 correspond to the non-display area of ​​the display screen 20. The main body 11 allows light to pass through without affecting the image display. The light-shielding layer 12 can shield the structures outside the display area, thereby preventing the peripheral structures from being observed and affecting the appearance of the display device.

[0035] The light-shielding layer 12 includes a light-transmitting portion 121 and a light-shielding portion 122. The light-transmitting portion 121 and the light-shielding portion 122 are adjacent to each other, and both the light-transmitting portion 121 and the light-shielding portion 122 are located in the edge area of ​​the cover plate 10. The transmittance of the light-transmitting portion 121 is greater than the transmittance of the light-shielding portion 122. The higher the transmittance of the light-transmitting portion 121, the more light is allowed to pass through. When the transmittance of the light-transmitting portion 121 is higher, the optical sensor 40 is more likely to receive light. When the transmittance of the light-transmitting portion 121 is lower, the optical sensor 40 receives less light. The transmittance of the light-transmitting portion 121 can be set according to the light receiving requirements of the optical sensor 40. This application does not limit the transmittance of the light-transmitting portion 121.

[0036] Optionally, in some embodiments, the material of the light-transmitting portion 121 may be semi-transparent ink, and the light transmittance of the light-transmitting portion 121 may be 5% to 15%, but is not limited thereto. When the light transmittance of the light-transmitting portion 121 is 5-15%, sufficient light can pass through the light-transmitting portion 121 while still allowing the surface of the cover plate 10 to appear entirely black, thereby preventing the structure beneath the light-transmitting portion 121 from being visible and affecting the appearance of the display device.

[0037] Optionally, in some embodiments, the light shielding portion 122 may be made of ink. The light shielding portion 122 has an optical density (OD) greater than 5.0, thereby effectively shielding the structure in the corresponding area below the cover plate 10 .

[0038] In this embodiment, the optical sensor 40 is provided with a sensing portion 41 for receiving light. The optical sensor 40 can obtain ambient light information from the received ambient light, so that the display terminal can automatically adjust the brightness of the display device, thereby automatically adapting to the brightness of the environment and improving the display effect of the display device.

[0039] In the display device of the present application, as shown in Figures 3 to 6, the backlight module 30 includes a bottom frame 31 and a middle frame 32. The bottom frame 31 includes side panels 311 and a bottom panel 312 connected to the side panels 311. A support portion 3110 is protruding from the connection between the side panels 311 and the bottom panel 312; the middle frame 32 is arranged in the bottom frame 31 and at least partially overlaps the support portion 3110; wherein, the middle frame 32 is provided with an avoidance groove 33, and the optical sensor 40 is arranged in the avoidance groove 33.

[0040] In some embodiments, the backlight module 30 includes a bottom frame 31 and a middle frame 32. The bottom frame 31 includes side panels 311 and a bottom panel 312 connected to the side panels 311. A support portion 3110 is protruding from the connection between the side panels 311 and the bottom panel 312. The middle frame 32 is arranged in the bottom frame 31 and at least partially overlaps the support portion 3110. The bottom frame 31 is provided with an avoidance groove 33, and the optical sensor 40 is arranged in the avoidance groove 33.

[0041] In some embodiments, the backlight module 30 includes a bottom frame 31 and a middle frame 32. The bottom frame 31 includes side panels 311 and a bottom panel 312 connected to the side panels 311. A support portion 3110 is protruding from the connection between the side panels 311 and the bottom panel 312. The middle frame 32 is arranged in the bottom frame 31 and at least partially overlaps the support portion 3110. Both the middle frame 32 and the bottom frame 31 are provided with an avoidance groove 33, and the optical sensor 40 is arranged in the avoidance groove 33.

[0042] In this embodiment, the bottom frame 31 can be a die-cast part or a sheet metal part. The material of the bottom frame 31 can be metal, etc. The bottom frame 31 includes side panels 311 and a bottom panel 312 connected to the side panels 311. The bottom panel 312 is arranged parallel to the display surface of the display device, and the side panels 311 are approximately perpendicular to the bottom panel 312. The side panels 311 and the bottom panel 312 form a receiving cavity, in which optical devices are disposed to provide a surface light source. The side panels 311 and the bottom panel 312 can be integrally formed, but are not limited thereto.

[0043] In some embodiments, the cover plate 10 can be bonded to the backlight module 30. Specifically, an adhesive material is provided on the surface of the side plate 311 near the cover plate 10, and the adhesive material achieves adhesion between the side plate 311 and the cover plate 10. For example, the adhesive material can be provided on the upper surface of the side plate 311 using a dispensing process, but is not limited thereto.

[0044] In this embodiment, as shown in FIG3 , a support portion 3110 is provided at the connection between the side panels 311 and the bottom panel 312. The surface of the support portion 3110 close to the side panels 311 is connected to the side panels 311, and the surface of the support portion 3110 close to the bottom panel 312 is connected to the bottom panel 312. The support portion 3110 and the side panels 311 can be integrally formed. The support portion 3110 can provide support for the center frame 32.

[0045] It should be noted that the bottom frame 31 may include multiple side panels 311 located around the bottom plate 312. For example, when the bottom frame 31 is rectangular, the number of side panels 311 may be four. The support portions 3110 may be disposed only on two opposing sides of the bottom frame 31, but are not limited thereto. In this embodiment, by disposing the support portions 3110 only on two opposing sides of the bottom frame 31, the width of the borders on the other two sides of the backlight module 30 can be reduced, achieving a narrow border effect.

[0046] In this embodiment, the middle frame 32 is located in the accommodating cavity formed by the side panels 311 and the bottom panel 312, and the middle frame 32 is at least partially overlapped on the support portion 3110. The middle frame 32 can be made of metal, plastic, or other materials. When the middle frame 32 is made of metal, the mechanical strength of the backlight module 30 can be enhanced, thereby improving the life of the display device. For example, when the display device is used in an automotive application scenario, the display device is susceptible to vibration and shock while the vehicle is driving. In this case, the middle frame 32 can be made of metal to improve the vibration and shock resistance of the display device.

[0047] In some embodiments, the middle frame 32 is a frame-shaped structure that matches the shape of the bottom frame 31. The middle frame 32 defines an effective light-emitting area of ​​the backlight module 30. The middle frame 32 and the bottom frame 31 are detachably connected.

[0048] As shown in Figure 3, the middle frame 32 includes a first end, a connecting portion, and a second end, which are sequentially connected. The first end of the middle frame 32 overlaps the top wall 3110b of the support portion, and the second end extends along the side of the support portion 3110 away from the side panel 311. The second end is parallel to the bottom panel 312, and the display screen 20 overlaps the second end. The first and second ends are parallel, and the connecting portion connects the first and second ends and is located near the side wall 3110a of the support portion.

[0049] It should be noted that a buffer member 55 may also be provided on the second end of the middle frame 32. The buffer member 55 is located between the middle frame 32 and the display screen 20. The buffer member 55 is a frame-shaped structure that matches the shape of the middle frame 32. The buffer member 55 may be made of foam, etc. When the display screen 20 is impacted by external forces, the buffer member 55 can provide a cushioning effect, reducing the risk of damage to the display screen 20 caused by the external forces.

[0050] Optionally, in some embodiments, an adhesive layer is provided on a surface of the buffer member 55 close to the display screen 20 , and the buffer member 55 is bonded to the display screen 20 through the adhesive layer.

[0051] When the support portions 3110 are only provided on two opposite sides of the bottom frame 31, the middle frame 32 can be detachably connected to the side panels 311 on the other opposite sides where the support portions 3110 are not provided. For example, buckles can be provided on the side panels 311, and corresponding bayonet holes can be provided on the middle frame 32. The buckles and bayonet holes engage with each other to achieve the connection between the middle frame 32 and the bottom frame 31.

[0052] Optionally, an adhesive material may be provided between the middle frame 32 and the side panels 311 to bond the middle frame 32 to the side panels 311 , thereby enhancing the firmness of the connection between the middle frame 32 and the bottom frame 31 .

[0053] In some embodiments, the middle frame 32 may be provided with an avoidance groove 33 , and the optical sensor 40 is disposed in the avoidance groove 33 .

[0054] In some embodiments, the bottom frame 31 may be provided with an avoidance groove 33 , and the optical sensor 40 is disposed in the avoidance groove 33 .

[0055] In some embodiments, as shown in FIG4 , when the optical sensor 40 has a relatively large outer dimension, providing a clearance groove 33 on either the middle frame 32 or the bottom frame 31 alone is still insufficient to accommodate the optical sensor 40 . Therefore, the clearance groove 33 may be provided on both the middle frame 32 and the bottom frame 31 to increase the accommodation space of the clearance groove 33 . The optical sensor 40 is disposed within the clearance groove 33 .

[0056] It should be noted that the display panel can be a vehicle-mounted display screen. As a preface to the implementation of the present application, a technical solution is provided, specifically: the optical sensor 40 is integrated into the display screen 20, and an additional light mask is required to produce the optical sensor 40. The addition of the light mask will greatly increase the production cost. At the same time, due to the addition of the production of the optical sensor 40, the manufacturing process difficulty of the display screen 20 will increase and the yield will decrease. Furthermore, the production of the optical sensor 40 in the display screen 20 requires an increase in the wiring space of the frame, which will increase the frame of the display screen 20, which is not conducive to achieving the narrow frame requirement. Based on the above reasons, most vehicle-mounted display screens choose a sensorless design, which requires users to manually adjust the display brightness, affecting the user experience.

[0057] Optionally, in this embodiment, the optical sensor 40 is disposed in the bottom frame 31 , so that the optical sensor 40 can be integrated into the backlight module 30 .

[0058] Optionally, in this embodiment, the optical sensor 40 is disposed in the middle frame 32 , so that the optical sensor 40 can be integrated into the backlight module 30 .

[0059] Optionally, in this embodiment, the optical sensor 40 is disposed in the bottom frame 31 and the middle frame 32 , so that the optical sensor 40 can be integrated into the backlight module 30 .

[0060] Based on the configurations of the above three optional embodiments, the frame width of the backlight module 30 is not increased, and a narrow frame of the display device is easily achieved.

[0061] In the display device of the present application, as shown in FIG3 , the distance between the surface of the optical sensor 40 away from the bottom plate 312 and the light shielding layer 12 is greater than or equal to the distance between the surface of the side plate 311 away from the bottom plate 312 and the light shielding layer 12. This means that the optical sensor 40 does not protrude from the upper surface of the side plate 311, thereby preventing interference between the optical sensor 40 and the cover plate 10. The side plate 311 also protects the optical sensor 40, preventing the cover plate 10 from squeezing the optical sensor 40 and causing it to fail.

[0062] In the display device of the present application, as shown in Figure 3, the backlight module 30 includes a light bar 34, which is arranged on the side wall of the support part 3110 away from the side panel 311, and the light bar 34 includes a first flexible printed circuit board 341 and lamp beads 342. The optical sensor 40 includes a second flexible printed circuit board 42 electrically connected to the sensing part 41, and the second flexible printed circuit board 42 is arranged on the top wall 3110b of the support part.

[0063] In some embodiments, a stacked reflective sheet 52, a light guide plate 53, and an optical film 54 are provided in the accommodating cavity of the bottom frame 31. The first flexible printed circuit board 341 can be adhered to the side wall 3110a of the support portion through the adhesive layer 51. The lamp beads 342 are arranged near the light incident surface of the light guide plate 53. The lamp beads 342 can be LEDs, etc., but are not limited to this. The light guide plate 53 is used to convert the light of the lamp beads 342 into a surface light source. The reflective sheet 52 is arranged between the light guide plate 53 and the bottom plate 312. The reflective sheet 52 is used to reflect light and improve the light utilization rate of the backlight module 30. The optical film 54 can be a stacked diffuser, prism sheet, etc., but is not limited to this. The diffuser is used to diverge the light, and the prism sheet is used to improve the brightness of the backlight module 30.

[0064] In this embodiment, the optical sensor 40 includes a second flexible printed circuit board 42 electrically connected to the sensing portion 41. The second flexible printed circuit board 42 is disposed on the top wall 3110b of the support portion and is used to output signals from the optical sensor 40 to the outside.

[0065] In some embodiments, as shown in FIG3 , the first flexible printed circuit board 341 and the second flexible printed circuit board 42 are integrally provided. This arrangement allows the optical sensor 40 to be integrated with the light bar 34 , allowing the optical sensor 40 and the light bar 34 to share a common connection terminal for external connection, eliminating the need for an additional connection terminal for the optical sensor 40 and saving space.

[0066] Alternatively, as shown in Figures 3 and 5, Figure 5 is a rear view of the first display device provided in an embodiment of the present application, wherein the positive direction along the Y-axis in Figure 3 is the rearward viewing direction, and the rear view is a view viewed along the rearward viewing direction. An opening 3121 is defined in the bottom plate 312, and the first flexible printed circuit board 341 includes at least a first connecting portion 3411. One end of the first connecting portion 3411 extends through the opening 3121 and is disposed on the surface of the bottom plate 312 facing away from the cover plate 10.

[0067] The first connection portion 3411 includes a plurality of connection terminals (not shown in the figure) for connecting to an external device, which may be a host, etc., but is not limited thereto. The first connection portion 3411 is used to input and output signals to control the display of the display device.

[0068] Optionally, a boss 3122 is provided on a surface of the bottom plate 312 facing away from the cover plate 10 , and the first connecting portion 3411 is provided between two adjacent bosses 3122 , and the thickness of the connecting portion is smaller than the thickness of the boss 3122 .

[0069] In this embodiment, the boss 3122 may be a reinforcing rib. In this embodiment, the mechanical strength of the bottom frame 31 may be improved by providing the boss 3122 .

[0070] Optionally, in some embodiments, the thickness of the connecting portion is less than the thickness of the boss 3122, where thickness refers to the dimension perpendicular to the display surface. This arrangement in this embodiment allows the first connecting portion 3411 to not extend beyond the surface of the boss 3122, thereby reducing the risk of interference between the first connecting portion 3411 and external devices and preventing damage to the first connecting portion 3411 caused by external devices.

[0071] Optionally, in this embodiment, as shown in Figure 5, the first flexible printed circuit board 341 includes a second connecting portion 3412, one end of the second connecting portion 3412 passes through the opening 3121 and is arranged on the surface of the bottom plate 312 facing away from the cover plate 10, and the width s2 of the second connecting portion is greater than the width s1 of the first connecting portion.

[0072] The first connection portion 3411 and the second connection portion 3412 can be arranged side by side. The first connection portion 3411 and the second connection portion 3412 can be used to transmit signals between the lamp bead 342 and the optical sensor 40. The first connection portion 3411 can be used only to transmit signals from the lamp bead 342, while the second connection portion 3412 can be used to transmit signals from the lamp bead 342 and the optical sensor 40. The first connection portion 3411 and the second connection portion 3412 can be connected to a connector in an external device to achieve signal transmission.

[0073] After the optical sensor 40 and light bar 34 are integrated, the second connection portion 3412 has more connection terminals, with the additional terminals used to transmit signals from the optical sensor 40. Because the second connection portion 3412 has more connection terminals than the first connection portion 3411, the width s2 of the second connection portion is greater than the width s1 of the first connection portion. For example, the second connection portion 3412 may have 15 connection terminals, 10 of which are used to transmit signals from the lamp beads 342 and 5 of which are used to transmit signals from the optical sensor 40. The first connection portion may have 10 connection terminals, all of which are used to transmit signals from the lamp beads 342.

[0074] The number of connection terminals of the first connection portion 3411 and the number of connection terminals of the second connection portion 3412 can be set as needed, thereby realizing the transmission of the signal of the optical sensor 40 and the signal of the lamp bead 342 .

[0075] It should be noted that the width refers to the dimension perpendicular to the extension direction of the first connection portion 3411, that is, the width s1 of the first connection portion is the dimension of the short side of the first connection portion 3411. Similarly, the width s2 of the second connection portion is the dimension of the short side of the second connection portion 3412.

[0076] Through the above-mentioned arrangement in this embodiment, the connection terminal of the optical sensor 40 can be set in the second connection part 3412, while the connection terminal of the first connection part 3411 remains unchanged, so that the connector corresponding to the first connection part 3411 can be compatible with the original connector, reducing production changes caused by connector changes and reducing the impact on the production process.

[0077] In other embodiments, as shown in FIG6 , FIG6 illustrates a rear view of the second display device, where the positive direction along the Y-axis in FIG3 is the rearward viewing direction, and the rear view is a view viewed along the rearward viewing direction. The second display device differs from the first display device in the arrangement of the second connection portion 3412. The first flexible printed circuit board 341 includes two first connection portions 3411, each of which is used to transmit signals from the lamp beads 342. The second flexible printed circuit board 42 includes a second connection portion 3412, which is used to transmit signals from the optical sensor 40.

[0078] In this embodiment, the first flexible printed circuit board 341 and the second flexible printed circuit board 42 are spaced apart and insulated, which means that the first flexible printed circuit board 341 and the second flexible printed circuit board 42 are independently arranged. The first flexible printed circuit board 341 can be arranged on the side wall 3110a of the support portion, and the second flexible printed circuit board 42 can be arranged on the top wall 3110b of the support portion.

[0079] In this embodiment, the signal of the optical sensor 40 is transmitted through the independent second flexible printed circuit board 42 , thereby reducing the risk of crosstalk between the signal of the optical sensor 40 and the signal of the lamp bead 342 .

[0080] The present application also provides a display terminal, which includes the above-mentioned display device.

[0081] In this embodiment, the display terminal may be any product or component with a display function, such as a mobile phone, a tablet computer, a television, a monitor, a laptop computer, a digital photo frame, a navigator, or a car display screen.

[0082] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0083] This application uses specific terms to describe the embodiments of this application. For example, "one embodiment," "an embodiment," and / or "some embodiments" refer to a certain feature, structure, or characteristic associated with at least one embodiment of this application. Therefore, it should be emphasized and noted that "one embodiment," "an embodiment," or "an alternative embodiment" mentioned twice or multiple times in different locations in this specification does not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of this application may be appropriately combined.

[0084] Similarly, it should be noted that, in order to simplify the description of this application and thus facilitate understanding of one or more embodiments of the application, the foregoing description of the embodiments of this application sometimes combines multiple features into a single embodiment, figure, or description thereof. However, this disclosure method does not mean that the subject matter of this application requires more features than those recited in the claims. In fact, the features of an embodiment may be fewer than all the features of the individual embodiments disclosed above.

[0085] The above is a detailed introduction to the display device and display terminal provided in the embodiments of the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solutions and core ideas of the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A display device, wherein: The display device comprises: The cover plate comprises a main body and a light shielding layer which are stacked; A display screen is arranged on a side of the light shielding layer away from the main body; A backlight module is arranged on a side of the display screen away from the cover plate; Among them, an optical sensor is provided in the backlight module, and the optical sensor is provided with a sensing part for receiving light. The shading layer is provided with a light-transmitting part and a light-shielding part. The orthographic projection of the sensing part on the light-shielding layer is located in the light-transmitting part, and the transmittance of the light-transmitting part is greater than the transmittance of the light-shielding part.

2. The display device according to claim 1, wherein: The backlight module comprises: The bottom frame comprises a side plate and a bottom plate connected to the side plate, wherein a support portion is protruded from the connection between the side plate and the bottom plate; A middle frame, disposed inside the bottom frame and at least partially overlapped on the support portion; Wherein, the middle frame is provided with an avoidance groove, and the optical sensor is arranged in the avoidance groove.

3. The display device according to claim 1, wherein: The backlight module comprises: The bottom frame comprises a side plate and a bottom plate connected to the side plate, wherein a support portion is protruded from the connection between the side plate and the bottom plate; A middle frame, disposed inside the bottom frame and at least partially overlapped on the support portion; Wherein, the bottom frame is provided with an avoidance groove, and the optical sensor is arranged in the avoidance groove.

4. The display device according to claim 1, wherein: The backlight module comprises: The bottom frame comprises a side plate and a bottom plate connected to the side plate, wherein a support portion is protruded from the connection between the side plate and the bottom plate; A middle frame, disposed inside the bottom frame and at least partially overlapped on the support portion; Wherein, the middle frame and the bottom frame are both provided with avoidance grooves, and the optical sensor is arranged in the avoidance grooves.

5. The display device according to any one of claims 2 to 4, wherein: The distance between the surface of the optical sensor away from the bottom plate and the light shielding layer is greater than the distance between the surface of the side plate away from the bottom plate and the light shielding layer.

6. The display device according to any one of claims 2 to 4, wherein: The distance between the surface of the optical sensor away from the bottom plate and the light shielding layer is equal to the distance between the surface of the side plate away from the bottom plate and the light shielding layer.

7. The display device according to claim 5 or 6, wherein: The backlight module comprises a light bar, and the light bar is arranged on a side wall of the support portion away from the side plate.

8. The display device according to claim 7, wherein: The light bar includes a first flexible printed circuit board and lamp beads, and the optical sensor includes a second flexible printed circuit board electrically connected to the sensing part, and the second flexible printed circuit board is arranged on the top wall of the supporting part.

9. The display device according to claim 8, wherein: The first flexible printed circuit board and the second flexible printed circuit board are integrally provided.

10. The display device according to claim 8 or 9, wherein: The bottom plate is provided with an opening, the first flexible printed circuit board comprises at least a first connecting portion, one end of the first connecting portion passes through the opening and is arranged on a surface of the bottom plate at a side away from the cover plate.

11. The display device according to claim 10, wherein: A boss is arranged on a surface of one side of the bottom plate facing away from the cover plate, the first connecting portion is arranged between two adjacent bosses, and the thickness of the first connecting portion is smaller than the thickness of the boss.

12. The display device according to claim 11, wherein: The first flexible printed circuit board includes a second connecting portion, one end of which passes through the opening and is arranged on a surface of the bottom plate away from the cover plate, and a width of the second connecting portion is greater than a width of the first connecting portion.

13. The display device according to claim 8, wherein: The first flexible printed circuit board is spaced apart from and insulated from the second flexible printed circuit board.

14. A display terminal, wherein: The display terminal includes a display device, and the display device includes: The cover plate comprises a main body and a light shielding layer which are stacked; A display screen is arranged on a side of the light shielding layer away from the main body; A backlight module is arranged on a side of the display screen away from the cover plate; Among them, an optical sensor is provided in the backlight module, and the optical sensor is provided with a sensing part for receiving light. The shading layer is provided with a light-transmitting part and a light-shielding part. The orthographic projection of the sensing part on the light-shielding layer is located in the light-transmitting part, and the transmittance of the light-transmitting part is greater than the transmittance of the light-shielding part.

15. The display terminal according to claim 14, wherein: The backlight module comprises: The bottom frame comprises a side plate and a bottom plate connected to the side plate, wherein a support portion is protruded from the connection between the side plate and the bottom plate; A middle frame, disposed inside the bottom frame and at least partially overlapped on the support portion; Wherein, at least one of the middle frame and the bottom frame is provided with an avoidance groove, and the optical sensor is arranged in the avoidance groove.

16. The display terminal according to claim 15, wherein: The distance between the surface of the optical sensor away from the bottom plate and the light shielding layer is greater than or equal to the distance between the surface of the side plate away from the bottom plate and the light shielding layer.

17. The display terminal according to claim 15, wherein: The backlight module includes a light bar, which is arranged on the side wall of the support part away from the side panel, and the light bar includes a first flexible printed circuit board and lamp beads. The optical sensor includes a second flexible printed circuit board electrically connected to the sensing part, and the second flexible printed circuit board is arranged on the top wall of the support part.

18. The display terminal according to claim 17, wherein: The first flexible printed circuit board and the second flexible printed circuit board are integrally provided.

19. The display terminal according to claim 17 or 18, wherein: The bottom plate is provided with an opening, the first flexible printed circuit board comprises at least a first connecting portion, one end of the first connecting portion passes through the opening and is arranged on a surface of the bottom plate at a side away from the cover plate.

20. The display terminal as claimed in claim 19, wherein: A boss is arranged on a surface of one side of the bottom plate facing away from the cover plate, the first connecting portion is arranged between two adjacent bosses, and the thickness of the first connecting portion is smaller than the thickness of the boss.

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