Vehicle-mounted narrow-frame double screen

Abstract

This utility model aims to provide a vehicle-mounted narrow-bezel dual-screen display, which includes a back shell, two backlight modules, and a display assembly. A common beam is integrally formed in the middle of the back shell, so that an assembly groove is formed on both sides of the common beam. Several positioning rods are provided at the edges of the two assembly grooves. The backlight module includes a backlight panel and a backlight sheet assembly. The backlight panel is set in the assembly groove. Several waist-shaped holes extending in the same direction are opened on one side of the backlight sheet assembly, and several rectangular holes are opened on the other side of the backlight sheet assembly. The backlight sheet assembly is stacked on the backlight panel so that a positioning rod passes through each waist-shaped hole / rectangular hole. The positioning rod is located on the side of the waist-shaped hole / rectangular hole away from the other waist-shaped holes / rectangular holes. The display assembly includes a panel, two middle frames, and two display modules. The two middle frames are respectively set in the two assembly grooves, and the two display modules are respectively set in the two middle frames. The panel is used to cover the two display modules.

Description

Technical Field

[0001] This utility model relates to the technical field of vehicle screens, and in particular to a vehicle-mounted narrow-bezel dual-screen display. Background Technology

[0002] With the development of automotive technology, especially the continuous development of new energy vehicles, in-vehicle screens are no longer limited to the central control screen, and a new demand has emerged for passenger entertainment screens. Currently, the central control screen and the passenger entertainment screen are separate and independent, that is, they are two separate and independent screens.

[0003] However, this separate and independent screen structure has the following drawbacks in automotive layout: First, the two independent screens require two completely independent frame structures, which reduces space utilization due to the need to reserve space for screen installation. Furthermore, the independent installation of two screens degrades the user experience. Second, as people pursue larger screen areas, the internal backlight modules also become larger. Since the backlight module film is sensitive to thermal expansion and contraction, the frame structure needs to provide sufficient deformation space to prevent the film from wrinkling due to thermal expansion or jumping out due to cold contraction. However, increased deformation space means that the frame width needs to be increased, ultimately resulting in excessively wide black borders at the screen edges. Therefore, the larger the screen area, the wider the black border becomes. Therefore, to solve the above shortcomings, this application proposes a dual-screen automotive narrow-bezel design. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a dual-screen system for vehicles with narrow bezels that allows two screens to share a single frame to improve space utilization, and can achieve narrow bezels even when the screen area is increased.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A dual-screen in-vehicle system with narrow bezels, comprising:

[0007] The rear shell has a common beam integrally formed in the middle, so that an assembly groove is formed on both sides of the common beam, and a number of positioning rods are provided at the edge of the two assembly grooves.

[0008] Two backlight modules are respectively disposed in two assembly slots. Each backlight module includes a backlight panel and a backlight sheet assembly. The backlight panel is disposed on the inner bottom wall of the assembly slot. A plurality of oblong holes extending in the same direction are formed on one side of the backlight sheet assembly, and a plurality of rectangular holes are formed on the other side of the backlight sheet assembly. The backlight sheet assemblies are stacked on the backlight panel such that a positioning rod passes through each oblong hole / rectangular hole. In any given positioning rod, the positioning rod is located on the side of the oblong hole / rectangular hole away from the other oblong holes / rectangular holes.

[0009] The display assembly includes a panel, two middle frames, and two display modules. The two middle frames are respectively disposed in the two mounting slots, and the two display modules are respectively disposed in the two middle frames. The panel is disposed on the top surface of the rear shell and the common beam so that the panel covers the two display modules.

[0010] Optionally, the inner wall of the assembly groove is provided with a first step and a second step, the backlight assembly is disposed on the first step, and the middle frame is disposed on the second step.

[0011] Optionally, the end face of the positioning rod is flush with the second step so that the end face of the positioning rod abuts against the middle frame.

[0012] Optionally, the middle frame is provided with an extension arm that extends toward the center of the mounting slot, and the display module is disposed on the extension arm.

[0013] Optionally, a first tape is also provided on the extension arm, and the display module is disposed on the first tape.

[0014] Optionally, a second adhesive tape is provided on both the rear shell and the common beam, and the panel is disposed on the second adhesive tape.

[0015] Optionally, the backlight assembly includes a diffuser plate and several optical sheets, with the diffuser plate and each optical sheet stacked sequentially from bottom to top, and each diffuser plate and each optical sheet having the waist-shaped hole / rectangular hole.

[0016] Optionally, the projection of the edge of the optical element along the normal of the panel lies on the extension arm.

[0017] Compared with the prior art, the present invention has at least the following advantages:

[0018] This utility model discloses a vehicle-mounted narrow-bezel dual-screen display, comprising a rear shell, two backlight modules, and a display assembly. A common beam is integrally formed in the middle of the rear shell, forming an assembly groove on each side of the common beam. Several positioning rods are provided at the edges of the two assembly grooves. The two backlight modules are respectively disposed in the two assembly grooves. Each backlight module includes a backlight panel and a backlight sheet assembly. The backlight panel is disposed on the inner bottom wall of the assembly groove. Several oblong holes extending in the same direction are opened on one side of the backlight sheet assembly, and several rectangular holes are opened on the other side of the backlight sheet assembly. The backlight sheet assembly is stacked on the backlight panel, so that a positioning rod passes through each oblong hole / rectangular hole. In any positioning rod, the positioning rod is located on the side of the oblong hole / rectangular hole away from the other oblong holes / rectangular holes. The display assembly includes a panel, two middle frames, and two display modules. The two middle frames are respectively disposed in the two assembly grooves, and the two display modules are respectively disposed in the two middle frames. The panel is disposed on the top surface of the rear shell and the common beam, so that the panel covers the two display modules. Thus, the dual-screen vehicle-mounted narrow bezel of this application, by integrally forming a shared beam on the rear shell, allows the two display modules to be supported by the shared beam simultaneously, thereby effectively reducing the distance between the two displays and improving the space utilization of the car's center console; secondly, by setting a positioning rod in conjunction with waist-shaped holes and rectangular holes for limiting assembly, the amount of cold shrinkage of the backlight assembly is suppressed, ultimately narrowing the black bezel of the display screen to form a narrow bezel structure. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a vehicle-mounted narrow-bezel dual-screen according to one embodiment of the present invention;

[0021] Figure 2 for Figure 1 The diagram shows a partial cross-sectional view of a dual-screen in-vehicle system with a narrow bezel.

[0022] Figure 3 for Figure 1 A partial enlarged structural diagram of A;

[0023] Figure 4 This is a schematic diagram of the rear shell structure according to one embodiment of the present invention.

[0024] Explanation of reference numerals in the attached figures:

[0025] 10. Vehicle-mounted narrow-bezel dual-screen; 100. Rear shell; 200. Backlight module; 300. Display component; 400. Shared beam; 101. Assembly slot; 500. Positioning rod; 210. Backlight panel; 231. Waist-shaped hole; 232. Rectangular hole; 310. Panel; 320. Middle frame; 330. Display module; 110. First step; 120. Second step; 321. Extension arm; 340. First tape; 600. Second tape; 220. Diffuser plate; 230. Optical sheet. Detailed Implementation

[0026] To facilitate understanding of this utility model, a more comprehensive description will be provided below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model.

[0027] like Figures 1 to 4 As shown, a vehicle-mounted narrow-bezel dual-screen 10 includes a rear shell 100, two backlight modules 200, and a display assembly 300. A common beam 400 is integrally formed in the middle of the rear shell 100, creating mounting grooves 101 on both sides of the common beam 400. Several positioning rods 500 are provided along the edges of both mounting grooves 101. The two backlight modules 200 are respectively disposed within the two mounting grooves 101. Each backlight module 200 includes a backlight panel 210 and a backlight sheet assembly. The backlight panel 210 is disposed on the inner bottom wall of the mounting groove 101. Several oblong holes 231 extending in the same direction are formed on one side of the backlight sheet assembly, and several rectangular holes 231 are formed on the other side of the backlight sheet assembly. 2. Backlight panels are stacked on the backlight plate 210 so that each waist-shaped hole 231 / rectangular hole 232 is provided with a positioning rod 500. In any positioning rod 500, the positioning rod 500 is located on the side of the waist-shaped hole 231 / rectangular hole 232 away from the other waist-shaped holes 231 / rectangular holes 232. The display assembly 300 includes a panel 310, two middle frames 320 and two display modules 330. The two middle frames 320 are respectively disposed in two assembly slots 101. The two display modules 330 are respectively disposed in the two middle frames 320. The panel 310 is disposed on the top surface of the rear shell 100 and the common beam 400 so that the panel 310 covers the two display modules 330.

[0028] It should be noted that the rear shell 100 and the common beam 400 are formed into a single integrated structure through an integral die-casting process. This results in the common beam 400 forming two mounting slots 101 within the rear shell 100. Each mounting slot 101 is used to install a backlight module 200. A middle frame 320 is then installed on each backlight module 200, followed by a display module 330 on the middle frame 320. Finally, a panel 310 is installed on the top surface of the rear shell 100 and the common beam 400, covering both display modules 330. Compared to the prior art where two independent displays are installed, where there is at least a distance of two bezels between the two displays, in this application, the two display modules 330 share a single rear shell 100. The common beam 400 supports both display modules 330, allowing the common beam 400 to be narrower, effectively reducing the distance between the two displays and improving the space utilization of the car's center console.

[0029] Furthermore, in each backlight module 200, as the area increases with market demand, the area of ​​the backlight assembly also becomes larger. However, since the size of the backlight assembly is sensitive to thermal expansion and contraction—that is, it expands when the temperature rises, increasing its long and wide sides, and contracts when the temperature drops, decreasing its long and wide sides—the existing approach is to increase the width of the middle frame 320, thereby increasing the coverage area of ​​the middle frame 320 over the backlight assembly and increasing the deformation range of the backlight assembly under temperature changes. This results in an excessively wide black border produced by the middle frame 320. In particular, as the area of ​​the backlight assembly increases, the width of the middle frame 320 needs to be increased, leading to a larger black border. In this application, multiple positioning rods 500 are provided at the edge of the assembly slot 101. For example, the positioning rods 500 and the back shell 100 are also integrally die-cast. Furthermore, several oblong holes 231 are formed on the same side edge of the backlight assembly, wherein the extension direction of each oblong hole 231 is consistent, and several rectangular holes 232 are formed on the other side edge. For ease of description, since the screens are all mounted at an angle or vertically on the car's center console, the side of the screen that is vertically above is defined as the top side, and the side of the screen that is vertically below is defined as the bottom side. Therefore, it can also be described as having several oblong holes 231 formed on the top side of the backlight assembly and several rectangular holes 232 formed on the bottom side. A positioning rod 500 is inserted into each oblong hole 231 and each rectangular hole 232, so that the backlight assembly is stably stacked on top of the backlight panel 210. It should be noted that the positioning rod 500 in any oblong hole 231 or rectangular hole 232 is located on the inner bottom wall of the side away from other oblong holes 231 and rectangular holes 232. In one embodiment, two oblong holes 231 and two rectangular holes 232 are provided. For ease of description, the two oblong holes 231 are defined as the first hole and the second hole, respectively. The positioning rod 500 located in the first hole is located at the end away from the second hole, and the positioning rod 500 located in the second hole is located at the end away from the first hole. Further, the two rectangular holes 232 are defined as the third hole and the fourth hole, respectively. The positioning post located in the third hole is located at a corner position away from the first, second, and fourth holes, and the positioning post located in the fourth hole is located at a corner position away from the first, second, and third holes. In this way, each positioning rod 500 is in a state of non-contactly expanding the backlight assembly. When the temperature rises, the long side and the wide side of the backlight assembly increase. Since the positioning rods 500 leave a margin in the first, second, third, and fourth holes, the backlight assembly can expand normally. Correspondingly, there is a margin between the edge of the backlight assembly and the inner wall of the assembly groove 101 to ensure that the backlight assembly will not be squeezed and wrinkled by the assembly groove 101 when it expands.When the temperature decreases, both the long and wide sides of the backlight assembly decrease. Since each positioning rod 500 is located at the extreme positions of the first, second, third, and fourth holes, each positioning rod 500 will support the inner walls of the first, second, third, and fourth holes to resist the shrinkage deformation of the backlight assembly. In this way, the positioning rods 500 forcibly intervene in the cold shrinkage deformation of the backlight assembly. Since the middle frame 320 needs to cover the edge of the backlight assembly, the decrease in the cold shrinkage of the backlight assembly means that the width of the middle frame 320 can be designed to be smaller, ultimately allowing the black border of the display screen to be narrower. Furthermore, the display module 330 is a liquid crystal display structure, which can be any liquid crystal display in the prior art. Since the structure of the display module 330 itself is not within the protection scope of this application, its detailed structure will not be described in detail.

[0030] Thus, through the vehicle-mounted narrow-bezel dual-screen 10 of this application, by integrally forming a common beam 400 on the rear shell 100, the two display modules 330 can be simultaneously supported by the common beam 400, thereby effectively reducing the distance between the two displays and improving the space utilization of the car's center console; secondly, by setting a positioning rod 500 in conjunction with the waist-shaped hole 231 and rectangular hole 232 for limiting assembly, the amount of cold shrinkage of the backlight assembly is suppressed, and finally the black bezel of the display screen is narrowed to form a narrow frame structure.

[0031] like Figure 2 and Figure 3 As shown, in one embodiment, a first step 110 and a second step 120 are provided on the inner sidewall of the assembly groove 101, the backlight sheet assembly is disposed on the first step 110, and the middle frame 320 is disposed on the second step 120.

[0032] It should be noted that by setting the first step 110 and the second step 120 in the assembly slot 101, the backlight assembly and the middle frame 320 can be installed on the first step 110 and the second step 120 in sequence. In this way, on the one hand, the assembly can be quickly positioned, and on the other hand, the backlight assembly and the display module 330 are kept stably spaced within the back cover 100.

[0033] like Figure 1 As shown, in one embodiment, the end face of the positioning rod 500 is flush with the second step 120 so that the end face of the positioning rod 500 abuts against the middle frame 320.

[0034] In this way, the positioning rod 500 can support the middle frame 320, improve the structural strength of the middle frame 320, and at the same time, the middle frame 320 can limit the positioning rod 500 to prevent the backlight assembly from coming off the positioning rod 500.

[0035] like Figure 2As shown, in one embodiment, an extension arm 321 is provided on the middle frame 320, and the extension arm 321 extends toward the center of the assembly groove 101, and the display module 330 is disposed on the extension arm 321.

[0036] Thus, the extension arm 321 covers the backlight assembly along the normal of the panel 310, ensuring that the display module 330 mounted on the middle frame 320 is stably illuminated by the backlight assembly.

[0037] like Figure 1 and Figure 2 As shown, in one embodiment, a first tape 340 is also provided on the extension arm 321, and the display module 330 is disposed on the first tape 340.

[0038] It should be noted that the first tape 340 is used to bond and fix the display module 330 to the extension arm 321. In one embodiment, the first tape 340 is a foam double-sided tape, which provides cushioning when the display module 330 is bonded to the first tape 340.

[0039] like Figure 2 As shown, in one embodiment, a second adhesive tape 600 is provided on both the rear shell 100 and the common beam 400, and the panel 310 is disposed on the second adhesive tape 600.

[0040] Thus, the second adhesive tape 600 bonds and secures the panel 310. In one embodiment, the panel 310 is a glass plate used to protect the display module 330, and the two display modules 330 share a single panel 310, which improves the user experience. Furthermore, in one embodiment, the second adhesive tape 600 is also a foam double-sided adhesive, providing cushioning between the panel 310 and the back cover 100 and the shared beam 400.

[0041] like Figure 2 As shown, in one embodiment, the backlight assembly includes a diffuser plate 220 and a plurality of optical sheets 230. The diffuser plate 220 and each optical sheet 230 are stacked sequentially from bottom to top. The diffuser plate 220 and each optical sheet 230 are provided with an oblong hole 231 / rectangular hole 232.

[0042] It should be noted that aligned waist-shaped holes 231 and rectangular holes 232 are provided on the diffuser plate 220 and each optical sheet 230. This allows the diffuser plate 220 and each optical sheet 230 to be quickly stacked and installed on the first step 110 via the positioning rod 500. The optical sheet 230 is one of a diffuser film, a brightness enhancement film, a quantum dot film, or a double-sided brightness enhancement film. In one embodiment, five optical sheets 230 are provided, stacked sequentially, and arranged from bottom to top as a quantum dot film, a brightness enhancement film, a diffuser film, a brightness enhancement film, and a double-sided brightness enhancement film.

[0043] In one embodiment, the projection of the edge of the optical sheet 230 along the normal of the panel 310 is located on the extension arm 321. Thus, at room temperature, that is, when the optical sheet 230 does not undergo thermal expansion and contraction, the edge of the optical sheet 230 is covered by the extension arm 321. When the optical sheet 230 undergoes thermal expansion and contraction, it is ensured that the edge of the optical sheet 230 is always covered by the extension arm 321, so that the display module 330 mounted on the extension arm 321 is covered and illuminated by the optical sheet 230.

[0044] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the utility model patent. Unless otherwise specifically defined, the installation / fixing / setting mentioned in this utility model can be understood as including, but not limited to, locking and fixing with screws / bolts, welding, or bonding with adhesives, wherein the adhesives used can be commercially available finished products. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A vehicle-mounted narrow-bezel dual-screen display, characterized in that, include: The rear shell has a common beam integrally formed in the middle, so that an assembly groove is formed on both sides of the common beam, and a number of positioning rods are provided at the edge of the two assembly grooves. Two backlight modules are respectively disposed in two assembly slots. Each backlight module includes a backlight panel and a backlight sheet assembly. The backlight panel is disposed on the inner bottom wall of the assembly slot. A plurality of oblong holes extending in the same direction are formed on one side of the backlight sheet assembly, and a plurality of rectangular holes are formed on the other side of the backlight sheet assembly. The backlight sheet assemblies are stacked on the backlight panel such that a positioning rod passes through each oblong hole / rectangular hole. In any given positioning rod, the positioning rod is located on the side of the oblong hole / rectangular hole away from the other oblong holes / rectangular holes. The display assembly includes a panel, two middle frames, and two display modules. The two middle frames are respectively disposed in the two mounting slots, and the two display modules are respectively disposed in the two middle frames. The panel is disposed on the top surface of the rear shell and the common beam so that the panel covers the two display modules.

2. The in-vehicle narrow-bezel dual-screen display according to claim 1, characterized in that, The inner wall of the assembly slot is provided with a first step and a second step, the backlight sheet assembly is disposed on the first step, and the middle frame is disposed on the second step.

3. The in-vehicle narrow-bezel dual-screen display according to claim 2, characterized in that, The end face of the positioning rod is flush with the second step so that the end face of the positioning rod abuts against the middle frame.

4. The in-vehicle narrow-bezel dual-screen display according to claim 2, characterized in that, An extension arm is provided on the middle frame, and the extension arm extends toward the center of the assembly slot, and the display module is disposed on the extension arm.

5. The in-vehicle narrow-bezel dual-screen display according to claim 4, characterized in that, A first adhesive tape is also provided on the extension arm, and the display module is disposed on the first adhesive tape.

6. The in-vehicle narrow-bezel dual-screen display according to claim 5, characterized in that, The rear shell and the common beam are both provided with a second adhesive tape, and the panel is disposed on the second adhesive tape.

7. The in-vehicle narrow-bezel dual-screen display according to claim 4, characterized in that, The backlight assembly includes a diffuser plate and several optical sheets. The diffuser plate and each optical sheet are stacked sequentially from bottom to top. The diffuser plate and each optical sheet are provided with the waist-shaped hole / rectangular hole.

8. The in-vehicle narrow-bezel dual-screen display according to claim 7, characterized in that, The projection of the edge of the optical element along the normal of the panel lies on the extension arm.

Images