CN214151321U

CN214151321U - Straight following formula backlight module and on-vehicle display device of chase under bending in succession

Info

Publication number: CN214151321U
Application number: CN202120505819.9U
Authority: CN
Inventors: 曹俊威; 冯超; 刘子平
Original assignee: Shenzhen Hadbest Electronics Co ltd
Current assignee: Shenzhen Hadbest Electronics Co ltd
Priority date: 2021-03-09
Filing date: 2021-03-09
Publication date: 2021-09-07
Anticipated expiration: 2031-03-09

Abstract

The utility model provides a straight following formula backlight module of chase under bending in succession, includes underframe, straight following formula light source and diffuser plate, and the underframe includes the bottom plate and connects the frame on the bottom plate, forms the holding chamber between bottom plate and the frame, and straight following formula light source installs in the holding intracavity, is equipped with the plummer on the frame, and the diffuser plate is fixed in the plummer. The utility model discloses a straight following formula backlight module of chase has reduced manufacturing cost effectively down bending in succession, has improved production efficiency to luminous effect is more even. The utility model discloses still relate to an on-vehicle display device.

Description

Straight following formula backlight module and on-vehicle display device of chase under bending in succession

Technical Field

The utility model relates to an illumination display device technical field, in particular to straight following formula backlight module and the on-vehicle display device of chase under bending in succession.

Background

At present, a direct-type backlight or an edge-type backlight is generally adopted in a conventional vehicle-mounted display screen. The contrast, color saturation and display fineness of the display screen adopting the direct type backlight source are higher.

However, the direct type backlight is much more expensive than the edge type backlight, and the manufacturing process is also more complicated than the edge type backlight. For example: the direct-type backlight needs to separately provide a supporting member for supporting the diffuser plate to fix the diffuser plate. Therefore, how to simplify the production process of the direct type backlight, reduce the production cost, and improve the assembly efficiency is a problem that needs to be urgently solved at present.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a straight following formula backlight module of chase under bending in succession has reduced manufacturing cost effectively, has improved production efficiency to luminous effect is more even.

The utility model provides a straight following formula backlight module of chase under bending in succession, includes underframe, straight following formula light source and diffuser plate, and the underframe includes the bottom plate and connects the frame on the bottom plate, forms the holding chamber between bottom plate and the frame, and straight following formula light source installs in the holding intracavity, is equipped with the plummer on the frame, and the diffuser plate is fixed in the plummer.

The utility model discloses an in the embodiment, above-mentioned plummer winds the circumference setting of bottom plate, a plurality of baffles of fixedly connected with on the plummer, it is a plurality of the baffle winds the circumference setting of diffuser plate.

The utility model discloses an in the embodiment, above-mentioned straight following formula backlight module of chase under bending in succession still includes the center, the center round the circumference setting of underframe, the center with the baffle is connected.

The utility model discloses an in the embodiment, above-mentioned center includes side frame and top frame, the side frame with the top frame is connected perpendicularly, the side frame with the baffle is connected, the top frame with the plummer sets up relatively from top to bottom.

The embodiment of the utility model provides an in, above-mentioned straight following formula backlight module of indisputable frame under bending in succession still includes the optics diaphragm, the optics diaphragm is fixed on the diffuser plate, the upper surface of optics diaphragm with the interval of top frame is more than or equal to 0.3 mm.

The embodiment of the utility model provides an in, above-mentioned optical diaphragm includes diffusion barrier, first membrane, second membrane and brightness enhancement film, the diffusion barrier is fixed on the diffuser plate, first membrane that adds lustre to covers on the diffusion barrier, the second membrane that adds lustre to covers on the first membrane that adds lustre to, the membrane that adds lustre to covers on the second membrane that adds lustre to.

The utility model discloses an in the embodiment, above-mentioned straight following formula backlight module of chase under bending in succession still includes the bound glue, the bound glue connect in the frame with between the side frame.

The utility model discloses an in the embodiment, above-mentioned straight following formula light source includes lamp plate and electric connection a plurality of light sources on the lamp plate, it is a plurality of the light source is the matrix and arranges, the straight following formula backlight module of chase still includes the heat conduction glue under bending in succession, the lamp plate passes through the heat conduction glue is fixed in the bottom plate.

The embodiment of the utility model provides an in, above-mentioned straight following formula backlight module of chase under bending in succession still includes the reflectance coating, the reflectance coating be equipped with the hole of dodging that the light source corresponds, the reflectance coating is fixed in lamp plate, each the light source passes respectively each the hole of dodging.

The utility model also provides a vehicle-mounted display device, including the straight following formula backlight module of the iron frame under foretell bending in succession.

The utility model discloses a be equipped with the plummer on the frame of the straight following formula backlight module of chase under bending in succession, the diffuser plate is fixed in the plummer, has saved the structure that conventional straight following formula backlight module is used for bearing the diffuser plate, consequently, has reduced manufacturing cost effectively, has still improved production efficiency. And the height between the bearing table and the bottom plate can be set according to the required distance between the direct type light source and the diffusion plate, so that the OD design value between the direct type light source and the diffusion plate can be accurately ensured, and the final light-emitting effect of the direct type backlight source module of the iron frame under continuous bending is ensured to be more uniform without lamp spots.

Drawings

Fig. 1 is a schematic view of a split structure of a direct type backlight module of a continuously bending lower iron frame of the present invention.

Fig. 2 is an enlarged schematic structural diagram of the middle frame of the present invention.

Fig. 3 is an enlarged schematic structural view of the bottom frame of the present invention.

Detailed Description

The application provides a straight following formula backlight module of chase under bending in succession.

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In order to facilitate understanding of those skilled in the art, the present application provides a specific implementation process of the technical solution provided by the present application through the following embodiments.

Fig. 1 is the utility model discloses a bend in succession down straight following formula backlight module's of chase split structure schematic diagram, fig. 2 is the utility model discloses an enlarged structure schematic diagram of center, fig. 3 is the utility model discloses an enlarged structure schematic diagram of underframe please refer to fig. 1 to fig. 3, bend in succession down straight following formula backlight module of chase includes underframe 11, straight following formula light source 12 and diffuser plate 13, underframe 11 includes bottom plate 111 and connects frame 112 on bottom plate 111, forms holding chamber 101 between bottom plate 111 and the frame 112, straight following formula light source 12 installs in holding chamber 101, is equipped with plummer 1121 on the frame 112, and diffuser plate 13 is fixed in plummer 1121. In this embodiment, the bottom plate 111 and/or the frame 112 are made of metal materials, such as: materials such as iron, copper, and alloys; but not limited thereto, for example: the bottom plate 111 and/or the frame 112 may also be made of plastic.

The utility model discloses a bend in succession and be equipped with the plummer 1121 on the frame 112 of the straight following formula backlight module of chase down, diffuser plate 13 is fixed in the plummer 1121, has saved the structure that conventional straight following formula backlight module is used for bearing diffuser plate 13, consequently, has reduced manufacturing cost effectively, has still improved production efficiency. Moreover, the height between the susceptor 1121 and the bottom plate 111 can be set according to the required distance between the direct-type light source 12 and the diffuser 13, so as to accurately ensure the OD design value between the direct-type light source 12 and the diffuser 13, and ensure that the final light emitting effect of the direct-type backlight module with the continuously bent lower iron frame is more uniform without lamp spots.

Further, the bottom plate 111 and the frame 112 are integrally provided or separately provided.

Further, the susceptor 1121 and the diffusion plate 13 can be fixed by a double-sided tape (not shown) to prevent the diffusion plate 13 from loosening.

Further, the susceptor 1121 is disposed around the circumference of the base plate 111, a plurality of baffles 113 are fixedly connected to the susceptor 1121, and the plurality of baffles 113 are disposed around the circumference of the diffuser plate 13. In this embodiment, the baffle 113 and the plummer 1121 are integrally disposed or separately disposed, and one end of the baffle 113 away from the plummer 1121 is used for bearing the middle frame 14 and a TP cover (not shown); the supporting platform 1121 may also be used for supporting a FOG liquid crystal display.

Further, the direct type backlight module for continuously bending the lower iron frame further comprises an intermediate frame 14, the intermediate frame 14 is disposed around the circumference of the bottom frame 11, and the intermediate frame 14 is connected to the baffle 113. In this embodiment, the middle frame 14 is made of metal material, for example: materials such as iron, copper, and alloys; but not limited thereto, for example: the middle frame 14 may also be made of plastic.

Further, the middle frame 14 includes a side frame 141 and a top frame 142, the side frame 141 is vertically connected to the top frame 142, the side frame 141 is connected to the baffle 113, and the top frame 142 is disposed opposite to the plummer 1121.

Furthermore, a plurality of slots 102 are disposed on one side of the baffle 113 close to the side frame 141, the side frame 141 is provided with a plurality of locking blocks 1131 matched with the slots 102, and after the middle frame 14 is fixedly connected with the bottom frame 11, each locking block 1131 is correspondingly disposed in each slot 102.

Further, the top frame 142 is pasted with silica gel 15 around for limiting and fixing the display screen (not shown), and the surface is pasted with foam double-sided adhesive 16 for installing and fixing the display screen.

Further, the direct type backlight module of the continuously bending lower iron frame further comprises an optical film 17, the optical film 17 is fixed on the diffusion plate 13, and the distance between the upper surface of the optical film 17 and the top frame 142 is greater than or equal to 0.3 mm. In the present embodiment, the distance between the upper surface of the optical film 17 and the top frame 142 is used to ensure that the optical film 17 has a sufficient expansion and contraction space in the vehicle-mounted harsh high and low temperature test without the problem of wrinkling of the optical film 17.

Further, the optical film 17 includes a diffuser film 171, a first brightness enhancement film 172, a second brightness enhancement film 173, and a brightness enhancement film 174, the diffuser film 171 is fixed on the diffuser plate 13, the first brightness enhancement film 172 covers the diffuser film 171, the second brightness enhancement film 173 covers the first brightness enhancement film 172, and the brightness enhancement film 174 covers the second brightness enhancement film 173. In this embodiment, the diffuser film 171, the first brightness enhancement film 172, the second brightness enhancement film 173, and the brightness enhancement film 174 are fixed by adhesive tapes (not shown), for example: one side of each of the diffuser film 171, the first brightness enhancement film 172, the second brightness enhancement film 173 and the brightness enhancement film 174 is fixed in a segmented manner by double-sided tape, so that the diffuser film 171, the first brightness enhancement film 172, the second brightness enhancement film 173 and the brightness enhancement film 174 are prevented from loosening and making abnormal sound.

Further, the direct type backlight module continuously bending the lower iron frame further includes an edge-covering adhesive 18, and the edge-covering adhesive 18 is connected between the frame 112 and the side frame 141. In this embodiment, the edge covering adhesive 18 can prevent light leakage of the direct-type backlight module with the lower bezel being continuously bent, and the connection between the bezel 112 and the side frame 141 is firmer.

Further, straight following formula light source 12 includes lamp plate and a plurality of light sources of electric connection on the lamp plate, and a plurality of light sources are the matrix and arrange, and the straight following formula backlight module of chase still includes heat-conducting glue 21 under bending in succession, and the lamp plate is fixed in bottom plate 111 through heat-conducting glue 21.

Further, the light source is, for example, a light emitting diode.

Further, the direct type backlight module of the continuously bent lower iron frame further comprises a reflective film 19, the reflective film 19 is provided with avoidance holes corresponding to the light sources, the reflective film 19 is fixed on the lamp panel, and the light sources respectively penetrate the avoidance holes. In this embodiment, the reflective film 19 can reflect the light emitted from the light source, so that the light emitted from the light source can be recycled, thereby improving the surface brightness of the direct-type backlight source with the continuously bent lower bezel.

The utility model discloses still relate to an on-vehicle display device, including the straight following formula backlight module of foretell iron frame under bending in succession. In the embodiment, the vehicle-mounted display device comprises a vehicle display screen, a vehicle-mounted central control, a vehicle-mounted instrument display and the like.

The utility model discloses not be limited to the specific details among the above-mentioned embodiment the utility model discloses a within the technical idea scope, can be right the technical scheme of the utility model carry out multiple simple variant, these simple variants all belong to the utility model discloses a protection scope. The various features described in the foregoing detailed description may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations.

Claims

1. The utility model provides a straight following formula backlight module of chase under continuous bending, characterized in that, includes bottom frame (11), straight following formula light source (12) and diffuser plate (13), bottom frame (11) include bottom plate (111) and connect frame (112) on bottom plate (111), form between bottom plate (111) and frame (112) and hold chamber (101), straight following formula light source (12) are installed in holding chamber (101), be equipped with plummer (1121) on frame (112), diffuser plate (13) are fixed in plummer (1121).

2. The direct type backlight module of continuous bending lower iron frame according to claim 1, wherein the carrier (1121) is disposed around the circumference of the bottom plate (111), a plurality of baffles (113) are fixedly connected to the carrier (1121), and a plurality of baffles (113) are disposed around the circumference of the diffuser plate (13).

3. The direct type backlight module of a continuous bending lower iron frame of claim 2, further comprising an intermediate frame (14), wherein the intermediate frame (14) is disposed around the circumference of the bottom frame (11), and the intermediate frame (14) is connected to the baffle (113).

4. The direct type backlight module of the continuous bending lower iron frame of claim 3, wherein the middle frame (14) comprises a side frame (141) and a top frame (142), the side frame (141) is vertically connected with the top frame (142), the side frame (141) is connected with the baffle (113), and the top frame (142) and the bearing platform (1121) are arranged opposite to each other in the vertical direction.

5. The direct type backlight module of a continuously bending lower iron frame as claimed in claim 4, further comprising an optical film (17), wherein the optical film (17) is fixed on the diffuser plate (13), and a distance between an upper surface of the optical film (17) and the top frame (142) is greater than or equal to 0.3 mm.

6. The direct-type backlight module of continuously bending a lower iron frame as claimed in claim 5, wherein the optical film (17) comprises a diffuser film (171), a first brightness enhancement film (172), a second brightness enhancement film (173) and a brightness enhancement film (174), the diffuser film (171) is fixed on the diffuser plate (13), the first brightness enhancement film (172) is covered on the diffuser film (171), the second brightness enhancement film (173) is covered on the first brightness enhancement film (172), and the brightness enhancement film (174) is covered on the second brightness enhancement film (173).

7. The direct type backlight module of a continuously bending lower iron frame as claimed in claim 4, further comprising an edge-covering adhesive (18), wherein the edge-covering adhesive (18) is connected between the frame (112) and the side frame (141).

8. The direct type backlight source module of the continuously bending lower iron frame according to claim 1, wherein the direct type light source (12) comprises a lamp panel and a plurality of light sources electrically connected to the lamp panel, the plurality of light sources are arranged in a matrix, the direct type backlight source module of the continuously bending lower iron frame further comprises a heat conducting glue (21), and the lamp panel is fixed to the bottom plate (111) through the heat conducting glue (21).

9. The direct type backlight source module of the continuously bending lower iron frame according to claim 8, further comprising a reflective film (19), wherein the reflective film (19) has an avoiding hole corresponding to the light source, the reflective film (19) is fixed on the lamp panel, and each light source passes through each avoiding hole.

10. A vehicular display device, comprising the direct type backlight module of the continuous bending lower iron frame of any one of claims 1 to 9.