CN221039715U - Prevent on-vehicle backlight unit and on-vehicle display device of MURA - Google Patents
Prevent on-vehicle backlight unit and on-vehicle display device of MURA Download PDFInfo
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- CN221039715U CN221039715U CN202322692737.1U CN202322692737U CN221039715U CN 221039715 U CN221039715 U CN 221039715U CN 202322692737 U CN202322692737 U CN 202322692737U CN 221039715 U CN221039715 U CN 221039715U
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- vehicle
- mura
- backlight module
- groove
- frame
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- 239000010408 film Substances 0.000 claims description 45
- 239000012528 membrane Substances 0.000 claims description 12
- 238000009792 diffusion process Methods 0.000 claims description 11
- 230000003287 optical effect Effects 0.000 claims description 9
- 239000003292 glue Substances 0.000 claims description 6
- 239000012788 optical film Substances 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000000853 adhesive Substances 0.000 description 14
- 230000001070 adhesive effect Effects 0.000 description 14
- 210000002421 cell wall Anatomy 0.000 description 11
- 239000011521 glass Substances 0.000 description 6
- 239000002390 adhesive tape Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 4
- 239000006260 foam Substances 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model provides a vehicle-mounted backlight module capable of preventing MURA, which comprises a lower frame, a middle frame and a display screen, wherein the middle frame is connected to the lower frame, the display screen is arranged on the middle frame, the lower frame is provided with a containing cavity for containing a diaphragm, the middle frame is provided with an avoiding groove, the avoiding groove is arranged on one side, far away from the containing cavity, of the middle frame, and a flat cable of the display screen is arranged in the avoiding groove. The vehicle-mounted backlight module capable of preventing the occurrence of the MURA can solve the problem that the Mura phenomenon occurs at the wire arrangement position of the display screen in the prior art, and improves the quality and the production efficiency of the vehicle-mounted backlight module. The utility model also relates to a vehicle-mounted display device.
Description
Technical Field
The utility model relates to the technical field of display screens, in particular to a vehicle-mounted backlight module capable of preventing MURA and a vehicle-mounted display device.
Background
In recent years, along with the continuous improvement of people on driving safety consciousness, the vehicle-mounted display screen 23 is rapidly developed in the automobile electronic field, can provide real-time monitoring display of the environment outside a carriage for drivers and passengers, provides guarantee for safe driving, becomes one of necessary equipment for traffic safety, and has higher and higher requirements on the quality of the vehicle-mounted display screen 23 by automobile manufacturers and also has higher requirements on the optical effect of the vehicle-mounted display screen 23.
As shown in fig. 1 and 2, the conventional vehicle-mounted backlight source includes a lower frame 21, a middle frame 22, an optical film and a display screen 23, where the optical film is disposed in the lower frame 21, the middle frame 22 is connected with the lower frame 21, and the display screen 23 is disposed on the middle frame 22, and since the middle frame 22 has a rectangular structure and is not provided with a avoidance groove for avoiding a glass flat cable 231 of the display screen 23, when the glass flat cable 231 of the display screen 23 needs to be electrically connected with a master control system, the glass flat cable 231 contacts with a baffle structure 221 of the middle frame 22, and when the glass flat cable 231 is assembled with the baffle structure 221 of the rubber frame, the glass flat cable 231 contacts with the baffle structure 221 due to the stress, so that Mura phenomenon can be caused by the stress of the glass flat cable 231, and uneven brightness of the display screen 23 can occur when a customer is used.
Disclosure of utility model
Therefore, the present utility model is directed to a vehicle-mounted backlight module capable of preventing MURA from occurring, which can solve the MURA phenomenon occurring at the flat cable position of the display screen in the prior art, and improve the quality and the production efficiency of the vehicle-mounted backlight module.
The utility model provides a vehicle-mounted backlight module capable of preventing MURA, which comprises a lower frame and a middle frame, wherein the middle frame is connected to the lower frame, the middle frame is used for bearing a display screen, the lower frame is provided with a containing cavity for containing a diaphragm, the middle frame is provided with an avoidance groove, the avoidance groove is arranged on one side, far away from the containing cavity, of the middle frame, and a flat cable of the display screen is arranged in the avoidance groove.
In an embodiment, the middle frame comprises a bearing frame and a frame, the bearing frame is fixedly connected to the frame, the frame comprises a top surface, an inner side surface and an outer side surface, the inner side surface and the outer side surface are oppositely arranged, the inner side surface is arranged in the accommodating cavity, the top surface is fixedly connected between the inner side surface and the outer side surface, the avoidance groove is formed by the outer side surface being recessed towards the direction close to the inner side surface, and the avoidance groove penetrates through the top surface.
In an embodiment, a chamfer structure with arc connection is formed between the bottom of the avoidance groove and the outer side surface.
In one embodiment, the chamfer structure has a radius of 0.4mm to 0.8mm.
In an embodiment, dodge the groove and include first cell wall, second cell wall and third cell wall, the second cell wall is connected first cell wall with between the third cell wall, the second cell wall with lateral surface parallel arrangement, first cell wall is equipped with first stopper, first stopper with the interval sets up between the second cell wall, the third cell wall be equipped with the second stopper that first stopper corresponds the setting, the second stopper with the interval sets up between the second cell wall, first stopper with the second stopper is used for right the winding displacement is spacing.
In an embodiment, the vehicle-mounted backlight module capable of preventing the MURA from occurring further includes a fixing glue, one side of the fixing glue is fixedly connected with the outer side surface of the middle frame, and the other side of the fixing glue is fixedly connected with the flat cable.
In an embodiment, the membrane comprises a reflective film, a light guide plate and an optical membrane, wherein the reflective film is arranged in the accommodating cavity, the light guide plate is arranged on the reflective film, and the optical membrane is arranged on the light guide plate.
In an embodiment, the optical film further includes a diffusion film, a lower brightness enhancement film, an upper brightness enhancement film, and a brightness enhancement film, wherein the diffusion film is disposed on the light guide plate, the lower brightness enhancement film is disposed on the diffusion film, the upper brightness enhancement film is disposed on the lower brightness enhancement film, and the brightness enhancement film is disposed on the upper brightness enhancement film.
In an embodiment, the vehicle-mounted backlight module capable of preventing the MURA from occurring further includes a light bar fixedly connected to an inner wall of the lower frame.
The utility model also relates to a vehicle-mounted display device which comprises the vehicle-mounted backlight module for preventing the MURA.
According to the vehicle-mounted backlight module, the avoidance groove is formed in the middle frame, and the flat cable of the display screen is connected with the main control system through the avoidance groove of the middle frame, so that the Mura phenomenon caused by pulling stress due to the fact that the flat cable is pressed on the middle frame during bending during assembly can be avoided, the quality of products and the use experience of customers are improved, and the production efficiency of the vehicle-mounted backlight module is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a partial schematic construction of a prior art center;
FIG. 2 is a partial schematic view of a prior art center and display assembly;
FIG. 3 is a schematic view of the structure of a middle frame according to a first embodiment of the present utility model;
FIG. 4 is a schematic view of the structure of FIG. 3 in partial cross-section at A-A;
FIG. 5 is a partially enlarged schematic illustration of the middle frame according to the first embodiment of the present utility model;
fig. 6 is a schematic cross-sectional view of a vehicle-mounted backlight module according to a first embodiment of the present utility model;
Fig. 7 is a schematic diagram of a split structure of a vehicle-mounted backlight module according to a first embodiment of the utility model;
Reference numerals: avoidance groove-101; groove bottom-1014; chamfering structure-1015; a lower frame-11; middle frame-12; a carrying frame-12 a; a frame-12 b; top surface-121; inner side-122; an outer side-123; a display screen-13; a flat cable-131; fixing glue-14; a reflective film-15; a light guide plate 16; an optical film-17; a diffusion film-171; a lower brightness enhancement film-172; upper brightness enhancement film-173; brightness enhancement film-174; a light bar-18; foam gum-19.
The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
Specific embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art without making any inventive effort, are intended to be within the scope of the present utility model.
In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "connected," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the terms described above will be understood to those of ordinary skill in the art in a specific context.
The terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," and the like are used as references to orientations or positional relationships based on the orientation or positional relationships shown in the drawings, or the orientation or positional relationships in which the inventive product is conventionally disposed in use, merely for convenience of description and simplicity of description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore are not to be construed as limiting the utility model.
The terms "first," "second," "third," and the like, are merely used for distinguishing between similar elements and not necessarily for indicating or implying a relative importance or order.
The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a list of elements does not include only those elements but may include other elements not expressly listed.
As shown in fig. 3 to 6, the vehicle-mounted backlight module capable of preventing MURA from occurring includes a lower frame 11 and a middle frame 12, the middle frame 12 is connected to the lower frame 11, the middle frame is used for bearing a display screen 13, both the display screen 13 is arranged on the middle frame 12, the lower frame 11 is provided with a containing cavity for containing a membrane, the middle frame 12 is provided with an avoiding groove 101, the avoiding groove 101 is arranged on one side, far away from the containing cavity, of the middle frame 12, and a flat cable 131 of the display screen 13 is arranged in the avoiding groove 101. In this embodiment, the MURA phenomenon refers to a phenomenon that the brightness of the display is uneven, resulting in various marks; the lower frame 11 comprises a bottom plate and side frames, the side frames are fixedly connected to the bottom plate and form the accommodating cavity, the bottom plate and the side frames are of an integrated structure or die casting, the membrane is fixedly connected in the accommodating cavity, and the middle frame 12 is fixed through black single-sided adhesive after being connected with the lower frame 11, so that the connection stability of the middle frame 12 and the lower frame 11 is improved; the middle frame 12 is preferably a rubber frame structure; the display 13 is a FOG.
According to the vehicle-mounted backlight module, the avoidance groove 101 is formed in the middle frame 12, and the flat cable 131 of the display screen 13 is connected with the main control system through the avoidance groove 101 of the middle frame 12, so that the Mura phenomenon caused by pulling stress due to the fact that the flat cable 131 is pressed on the middle frame 12 during bending during assembly can be avoided, the quality of products and the use experience of customers are improved, and the production efficiency of the vehicle-mounted backlight module is improved.
Further, the middle frame 12 includes a carrying frame 12a and a frame 12b, the carrying frame 12a is fixedly connected to the frame 12b, the frame 12b includes a top surface 121, an inner side surface 122 and an outer side surface 123 which are oppositely arranged, the inner side surface 122 is arranged in the accommodating cavity, the top surface 121 is fixedly connected between the inner side surface 122 and the outer side surface 123, the inner side surface 122 and the outer side surface 123 are respectively perpendicular to the top surface 121, the carrying frame 12a is fixedly connected to the inner side surface 122, the avoiding groove 101 is formed by the outer side surface 123 being recessed towards the direction close to the inner side surface 122, the avoiding groove 101 penetrates through the top surface 121, and the avoiding groove 101 is in an L-shaped arrangement.
As shown in fig. 4 and 5, the groove bottom 1014 of the avoiding groove 101 and the outer side face 123 are arc-shaped and connected chamfer structures 1015, and the radius of the chamfer structures 1015 is 0.4 mm-0.8 mm. In the present embodiment, the radius of the chamfer structure 1015 is preferably 0.4mm, 0.5mm, 0.8mm, or the like, but not limited thereto.
In another preferred embodiment, the avoiding groove 101 includes a first groove wall, a second groove wall and a third groove wall, the second groove wall is connected between the first groove wall and the third groove wall, the second groove wall is parallel to the outer side 123, the first groove wall is connected with the second groove wall in an arc shape, and the second groove wall is connected with the third groove wall in an arc shape.
As shown in fig. 6, the vehicle-mounted backlight module capable of preventing MURA from occurring further includes a fixing adhesive 14, one side of the fixing adhesive 14 is fixedly connected with the outer side 123 of the middle frame 12, and the other side of the fixing adhesive 14 is fixedly connected with the flat cable 131, so that MURA phenomenon can be effectively improved, and the flat cable 131 is prevented from being deformed due to pulling force caused by bending, and the fixing adhesive 14 is preferably double-sided adhesive.
As shown in fig. 7, the membrane comprises a reflective film 15, a light guide plate 16 and an optical membrane 17, wherein the reflective film 15 is arranged in the accommodating cavity, the reflective film 15 is fixedly connected to the bottom plate through a double sided adhesive tape, the light guide plate 16 is arranged on the reflective film 15, the optical membrane 17 is arranged on the light guide plate 16, and the light guide plate 16 can be connected with the optical membrane 17 through the double sided adhesive tape, a clamping block and a clamping groove in a matching manner; specifically, the optical film 17 further includes a diffusion film 171, a lower brightness enhancement film 172, an upper brightness enhancement film 173, and a brightness enhancement film 174, where the diffusion film 171 is disposed on the light guide plate 16, the lower brightness enhancement film 172 is disposed on the diffusion film 171, the upper brightness enhancement film 173 is disposed on the lower brightness enhancement film 172, and the diffusion film 171, the lower brightness enhancement film 172, the upper brightness enhancement film 173, and the brightness enhancement film 174 may be fixedly connected by a double-sided adhesive tape.
Further, the vehicle-mounted backlight module for preventing the MURA from occurring further includes a light bar 18, the light bar 18 is fixedly connected to the inner wall of the lower frame 11, and the light bar 18 is fixedly connected to the second side wall of the side frame 112 through a heat-conducting double sided adhesive tape.
Further, the vehicle-mounted backlight module for preventing the MURA from occurring further comprises a foam adhesive 19, and the foam adhesive 19 is used for buffering and fixing the display screen 13.
Second embodiment
The vehicle-mounted backlight module for preventing the occurrence of the MURA of the present embodiment is substantially identical to the vehicle-mounted backlight module for preventing the occurrence of the MURA of the first embodiment in structure, and is different in structure of the avoidance groove 101.
Specifically, the avoiding groove 101 includes a first groove wall, a second groove wall and a third groove wall, the second groove wall is connected between the first groove wall and the third groove wall, the second groove wall is parallel to the outer side 123, the first groove wall is provided with a first limiting block, the first limiting block is arranged at intervals between the first groove wall and the second groove wall, the third groove wall is provided with a second limiting block corresponding to the first limiting block, the second limiting block is arranged at intervals between the second limiting block and the second groove wall, and the first limiting block and the second limiting block are used for limiting the flat cable 131, so that the flat cable 131 is convenient to assemble and fix; the first limiting block protrudes towards the direction close to the third groove wall, the second limiting block protrudes towards the direction close to the first groove wall, and the first limiting block and the second limiting block are preferably columnar.
Further, the vehicle-mounted backlight module capable of preventing MURA further comprises a fixing adhesive 14, one side of the fixing adhesive 14 is fixedly connected with the outer side face 123 of the adhesive frame, the other side of the fixing adhesive 14 is fixedly connected with the flat cable 131, MURA phenomenon can be effectively improved, the flat cable 131 is prevented from being pulled and deformed due to bending, and the fixing adhesive 14 is preferably double-sided adhesive.
The utility model also relates to a vehicle-mounted display device which comprises the vehicle-mounted backlight module for preventing the MURA. The vehicle-mounted display device of the present utility model is, for example, but not limited to, a high-end vehicle-mounted instrument, a vehicle-mounted central control display, a vehicle-mounted vehicle recorder, a vehicle-mounted DVD navigation, a vehicle-mounted driver's cab integrated display screen, a vehicle-mounted streaming media rearview mirror, or a vehicle seat headrest display.
The present utility model is not limited to the above embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model. Accordingly, the scope of the utility model should be assessed as that of the appended claims.
Claims (10)
1. Prevent on-vehicle backlight unit of MURA, a serial communication port, including lower frame (11) and center (12), center (12) connect in lower frame (11), center (12) are used for bearing display screen (13), lower frame (11) are equipped with the holding chamber that is used for the holding diaphragm, center (12) are equipped with dodges groove (101), dodge groove (101) are located center (12) are kept away from one side of holding chamber, winding displacement (131) of display screen (13) set up dodge in groove (101).
2. The vehicle-mounted backlight module according to claim 1, wherein the middle frame (12) comprises a bearing frame (12 a) and a frame (12 b), the bearing frame (12 a) is fixedly connected to the frame (12 b), the frame (12 b) comprises a top surface (121) and an inner side surface (122) and an outer side surface (123) which are oppositely arranged, the inner side surface (122) is arranged in the accommodating cavity, the top surface (121) is fixedly connected between the inner side surface (122) and the outer side surface (123), the avoidance groove (101) is formed by the outer side surface (123) being recessed towards a direction close to the inner side surface (122), and the avoidance groove (101) penetrates through the top surface (121).
3. The vehicle-mounted backlight module for preventing MURA according to claim 2, wherein a chamfer structure (1015) is formed by arc connection between the groove bottom (1014) of the avoidance groove (101) and the outer side surface (123).
4. A vehicle backlight module according to claim 3, wherein the radius of the chamfer structure (1015) is 0.4mm to 0.8mm.
5. A vehicle-mounted backlight module for preventing a MURA from occurring according to claim 3, wherein the avoiding groove (101) comprises a first groove wall, a second groove wall and a third groove wall, the second groove wall is connected between the first groove wall and the third groove wall, the second groove wall is arranged in parallel with the outer side (123), the first groove wall is provided with a first limiting block, the first limiting block is arranged with the second groove wall at an interval, the third groove wall is provided with a second limiting block corresponding to the first limiting block, the second limiting block is arranged with the second groove wall at an interval, and the first limiting block and the second limiting block are used for limiting the flat cable (131).
6. The vehicle-mounted backlight module for preventing MURA according to claim 3 or 5, wherein the vehicle-mounted backlight module for preventing MURA further comprises a fixing glue (14), one side of the fixing glue (14) is fixedly connected with the outer side (123) of the middle frame (12), and the other side of the fixing glue (14) is fixedly connected with the flat cable (131).
7. The vehicle-mounted backlight module for preventing MURA according to claim 6, wherein the membrane comprises a reflective film (15), a light guide plate (16) and an optical membrane (17), the reflective film (15) is disposed in the accommodating cavity, the light guide plate (16) is disposed on the reflective film (15), and the optical membrane (17) is disposed on the light guide plate (16).
8. The vehicular backlight module for preventing MURA from occurring according to claim 7, wherein the optical film (17) further comprises a diffusion film (171), a lower brightness enhancement film (172), an upper brightness enhancement film (173), and a brightness enhancement film (174), the diffusion film (171) is disposed on the light guide plate (16), the lower brightness enhancement film (172) is disposed on the diffusion film (171), the upper brightness enhancement film (173) is disposed on the lower brightness enhancement film (172), and the brightness enhancement film (174) is disposed on the upper brightness enhancement film (173).
9. The MURA-preventing vehicle-mounted backlight module according to claim 8, wherein the MURA-preventing vehicle-mounted backlight module further comprises a light bar (18), and the light bar (18) is fixedly connected to an inner wall of the lower frame (11).
10. A vehicle-mounted display device, characterized by comprising the vehicle-mounted backlight module for preventing MURA according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322692737.1U CN221039715U (en) | 2023-10-08 | 2023-10-08 | Prevent on-vehicle backlight unit and on-vehicle display device of MURA |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322692737.1U CN221039715U (en) | 2023-10-08 | 2023-10-08 | Prevent on-vehicle backlight unit and on-vehicle display device of MURA |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221039715U true CN221039715U (en) | 2024-05-28 |
Family
ID=91166218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322692737.1U Active CN221039715U (en) | 2023-10-08 | 2023-10-08 | Prevent on-vehicle backlight unit and on-vehicle display device of MURA |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221039715U (en) |
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2023
- 2023-10-08 CN CN202322692737.1U patent/CN221039715U/en active Active
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