CN210896308U

CN210896308U - Lower frame assembly, backlight source assembly and vehicle-mounted display device

Info

Publication number: CN210896308U
Application number: CN201922279770.5U
Authority: CN
Inventors: 鲁景阳; 曹俊威; 冯超
Original assignee: Shenzhen Hadbest Electronics Co ltd
Current assignee: Shenzhen Hadbest Electronics Co ltd
Priority date: 2019-12-17
Filing date: 2019-12-17
Publication date: 2020-06-30
Anticipated expiration: 2029-12-17

Abstract

The utility model discloses a lower frame subassembly, include to enclose by the baffle and establish framework, rivet and the protection piece that forms accommodation space, accommodation space's bottom is equipped with the rivet hole, and the rivet has accommodation space one side through the framework and wears the rivet hole outstanding from the opposite side of framework, and the protection piece covers on rivet hole and the rivet that is located accommodation space one side. The utility model also discloses a backlight subassembly, including above-mentioned lower frame subassembly. The utility model also discloses a vehicle-mounted display device, including above-mentioned backlight subassembly. Through above-mentioned structure, guaranteed the level and smooth of accommodation space bottom to prevent that the rivet hole from arousing the appearance of on-vehicle display screen abnormal phenomena, can prevent simultaneously that dust foreign matter etc. from getting into the finished product in a poor light through the rivet hole, can improve the quality and the life of product.

Description

Lower frame assembly, backlight source assembly and vehicle-mounted display device

Technical Field

The utility model relates to an on-vehicle demonstration technical field especially relates to a lower frame subassembly, backlight subassembly and on-vehicle display device.

Background

With the development of digital cars, intelligent cars and electric cars, a car is generally equipped with a plurality of vehicle-mounted displays, including an instrument panel, a central information display, a rear seat entertainment display and the like. The vehicular terminal has huge market potential and wide development prospect in China. The market demand of the vehicle-mounted display is directly driven, meanwhile, the requirements of a vehicle factory on appearance problems of white blocks, white dots, black blocks, dark areas and the like of a screen of the vehicle-mounted display are also strict, and the main reasons of the white blocks, the white blocks and the black blocks of the screen are caused by the extrusion stress of the TFT screen from the outside. The vehicle-mounted display screen lower frame is uneven due to burrs, burrs and bulges of the rivet hole during manufacturing, so that the reflecting film is extruded during assembling to generate white spots, white blocks, black spots and black blocks, and abnormal appearance problems such as white spots, white blocks and black blocks of a screen of the vehicle-mounted display screen are caused.

The foregoing description is provided for general background information and is not admitted to be prior art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lower frame subassembly, backlight subassembly and vehicle-mounted display device to improve because of rivet hole burr, drape over one's shoulders the vehicle-mounted display screen white spot or the black spot phenomenon that cutting edge of a knife or a sword, arch are uneven aroused.

The utility model provides a lower frame subassembly, include to enclose by the baffle and establish framework, rivet and protection piece that form accommodation space, accommodation space's bottom is equipped with the rivet hole, the rivet warp the framework has accommodation space wears on one side the rivet hole is followed the opposite side of framework is outstanding, protection piece covers and is being located accommodation space one side on rivet hole and the rivet.

In one embodiment, the protection member is a single-sided adhesive.

In one embodiment, the single-sided adhesive is square, the thickness of the single-sided adhesive is 0.03-0.1mm, and the width of the single-sided adhesive is 5-15 mm.

In one embodiment, the rivet holes are arranged at four corners of the bottom of the accommodating space.

In one embodiment, the rivet is hollow longitudinally to form a cylindrical space, and the inner wall of the cylindrical space is provided with threads.

In one embodiment, the rivet is provided with a convex hull surrounding a part of the rivet at the periphery, and the convex hull is arranged on the frame body at the side where the rivet protrudes.

The utility model also provides a backlight subassembly, including above-mentioned lower frame subassembly to and backlight and center, the backlight accept in accommodation space, the framework with the center block.

The utility model also provides an on-vehicle display device, including above-mentioned backlight subassembly to and TFT screen and upper ledge, the TFT screen is installed the upper ledge with between the center, the upper ledge with the TFT screen is acceptd to the center block.

The utility model provides a lower frame subassembly, through protection piece cover is located accommodation space one side on rivet hole and the rivet, guaranteed the level and smooth of accommodation space bottom to prevent that the rivet hole from arousing the appearance of on-vehicle display screen abnormal phenomenon, can prevent simultaneously that dust foreign matter etc. from getting into the finished product in a poor light through the rivet hole, can improve the quality and the life of product.

Drawings

Fig. 1 is a schematic structural view of a frame body according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a lower frame assembly according to an embodiment of the present invention;

FIG. 3 is another schematic view of the structure of FIG. 2;

fig. 4 is a schematic structural diagram of the vehicle-mounted display device of the present invention.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Referring to fig. 1 to 3, a lower frame assembly according to an embodiment of the present invention includes a frame 11, a rivet 12 and a protection member 14, wherein the frame is surrounded by a baffle 111 to form an accommodating space 113. A rivet hole 15 is formed at the bottom of the accommodating space 113, and the rivet 12 penetrates through the rivet hole 15 from one side of the frame 11 with the accommodating space 113 through the frame 11 and protrudes from the other side of the frame 11; the protector 14 covers the rivet hole 15 and the rivet 12 on the side of the accommodating space 113. The protector 14 also functions to seal the accommodating space 113 while ensuring a smooth and flat bottom of the accommodating space, thereby preventing dust or foreign substances from entering the accommodating space 113.

In the embodiment, the protection member 14 is a single-sided adhesive 14, and the area of the protection member 14 is larger than that of the rivet hole 15. The single-sided adhesive 14 is square, the thickness of the single-sided adhesive 14 is 0.03-0.1mm, and the width of the single-sided adhesive is 5-15 mm.

The rivet 12 is hollow longitudinally to form a cylindrical space 151, and the inner wall of the cylindrical space 151 is provided with a thread 1513 for fixing the frame 11 on the automobile.

Rivet hole 15 sets up the four corners in accommodation space 113 bottom, and rivet hole 15 is the through-hole. The opposite surface (the side from which the rivet 12 protrudes) of the bottom of the accommodating space 113 is provided with a convex hull 16, and the convex hull 16 surrounds part of the rivet 12. Before the rivet 12 does not penetrate through the rivet hole 15, an annular groove 13 surrounding the rivet hole 15 is arranged on the periphery of the rivet hole 15 on one side of the accommodating space 113 of the frame body 11; after the rivet 12 is inserted through the rivet hole 15, the annular recess 13 is formed into the convex hull 16 to fix the rivet 12 to the frame 11.

Referring to fig. 1 and fig. 4, an embodiment of the present invention further provides a backlight assembly, which includes the lower frame assembly 1, a backlight 3 and a middle frame 4. The backlight 3 is accommodated in the accommodating space 113, and the frame 11 engages with the center frame 4.

The backlight unit includes a reflective film 31, a light guide plate 32, a lower diffusion film 33, an LED light bar fixing double-sided tape 34, an LED light bar 35, a lower brightness enhancement film 36, and a DBEF (reflection brightness enhancement film) 37. Wherein, the LED light bar is FPCA (FPCA is the abbreviation of Flexible printed circuit adhesive Assembly, meaning is FPC component soldering tin or equipment), and LED light bar 35 sets up the side at light guide plate 32, and fixed double faced adhesive tape 34 of LED light bar laminates LED light bar 35 and framework 11 respectively to make LED light bar 35 fix on framework 11, reflectance coating 31, light guide plate 32, lower diffusion barrier 33, lower membrane 36 and the DBEF37 of adding lustre to set gradually from top to bottom.

Referring to fig. 4, an embodiment of the present invention further provides an on-vehicle display device, which includes the backlight module, the TFT screen 6 and the upper frame 7. The TFT panel 6 is mounted between the upper frame 7 and the middle frame 4, and the upper frame 7 engages with the middle frame 4 to accommodate the TFT panel 6.

And foam cotton rubber 5 is also arranged between the middle frame 4 and the TFT screen 6 and is used for buffering and protecting the TFT screen 6.

In the drawings, the size and relative sizes of layers and regions may be exaggerated for clarity. It will be understood that when an element such as a layer, region or substrate is referred to as being "formed on," "disposed on" or "located on" another element, it can be directly on the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly formed on" or "directly disposed on" another element, there are no intervening elements present.

In this document, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms can be understood in a specific case to those of ordinary skill in the art.

In this document, the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "vertical", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the sake of clarity and convenience of description of the technical solutions, and thus, should not be construed as limiting the present invention.

As used herein, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, including not only those elements listed, but also other elements not expressly listed.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The lower frame assembly is characterized by comprising a frame body, a rivet and a protection piece, wherein the frame body is enclosed by a baffle plate to form an accommodating space, a rivet hole is formed in the bottom of the accommodating space, the rivet penetrates through one side of the accommodating space of the frame body and protrudes from the other side of the frame body, and the protection piece covers the rivet hole and the rivet on one side of the accommodating space.

2. The lower frame assembly of claim 1, wherein the protective member is a single-sided adhesive.

3. The bottom frame assembly of claim 2, wherein the single-sided adhesive is square in shape, and has a thickness of 0.03-0.1mm and a width of 5-15 mm.

4. The lower frame assembly of claim 1, wherein the rivet holes are provided at four corners of the bottom of the receiving space.

5. The lower frame assembly of claim 1, wherein the rivet is longitudinally hollow to form a cylindrical space, and wherein threads are provided on an inner wall of the cylindrical space.

6. The bottom frame assembly of claim 1, wherein the rivet has a raised boss around a portion of the rivet, the raised boss being disposed on the frame on a side of the rivet from which the rivet protrudes.

7. A backlight unit comprising the lower frame unit according to any one of claims 1 to 6, a backlight and a middle frame, wherein the backlight is accommodated in the accommodating space, and the frame is engaged with the middle frame.

8. A vehicle-mounted display device comprising the backlight unit as claimed in claim 7, and a TFT panel and an upper frame, wherein the TFT panel is mounted between the upper frame and the middle frame, and the upper frame and the middle frame are engaged with each other to accommodate the TFT panel.