CN219811106U - Backlight module structure compatible with grating and touch screen - Google Patents
Backlight module structure compatible with grating and touch screen Download PDFInfo
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- CN219811106U CN219811106U CN202321263616.9U CN202321263616U CN219811106U CN 219811106 U CN219811106 U CN 219811106U CN 202321263616 U CN202321263616 U CN 202321263616U CN 219811106 U CN219811106 U CN 219811106U
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- backlight module
- grating
- frame
- touch screen
- middle frame
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- 239000002184 metal Substances 0.000 claims abstract description 36
- 238000006243 chemical reaction Methods 0.000 claims abstract description 26
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 24
- 230000003287 optical effect Effects 0.000 claims description 10
- 238000010009 beating Methods 0.000 claims description 4
- RVCKCEDKBVEEHL-UHFFFAOYSA-N 2,3,4,5,6-pentachlorobenzyl alcohol Chemical compound OCC1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl RVCKCEDKBVEEHL-UHFFFAOYSA-N 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012788 optical film Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model provides a backlight module structure compatible with a grating and a touch screen, which is provided with a sheet metal backboard, a middle frame, a front frame and a liquid crystal screen, wherein a bearing support plate is arranged on the inner side surface of the middle frame in an extending way, a pair of conversion frames are respectively arranged at four corners of the outer side surface of the bearing support plate, the liquid crystal screen is clamped on the inner side of the conversion frames, and the front frame and the sheet metal backboard are respectively buckled on the front side and the rear side of the middle frame. The utility model has simple structure, and can match the backlight module with the grating and the touch screen by using different conversion frames, thereby achieving the aim of assembling two backlight module structures and enabling the backlight module to be converted between a 3D function and a touch screen function structure. The utility model utilizes the same set of backlight module molds, the money exchange of the middle frame is only realized by the four-angle insert, the investment of molds with different backlight module structures is reduced, meanwhile, the whole machine assembly efficiency is improved by screw removal design, the production cost of products is reduced, the product competitiveness of enterprises is improved, and the utility model can be widely applied to the technical field of liquid crystal modules.
Description
Technical Field
The utility model relates to the technical field of liquid crystal modules, in particular to a backlight module structure compatible with a grating and a touch screen.
Background
The common LED backlight module takes a metal plate backboard as a carrier basically, the periphery of the metal plate backboard is turned to form 90 degrees with the bottom surface, optical materials such as LED lamp strips, reflecting sheets, light guide plates, optical films and the like are assembled in the metal plate backboard, a liquid crystal screen is carried on the upper part of a middle frame, and the liquid crystal screen is fixed through double-sided foam glue or a front frame to form the whole backlight module. In order to expand the 3D function of the liquid crystal module, the backlight module is added with components such as gratings, and in order to meet the requirements of people on the touch screen, the backlight module is also added with components such as the touch screen.
Different functional requirements often need to assemble different backlight module structures, so that parts such as a front frame, a middle frame, a metal plate back plate and the like need to be manufactured through different moulds for many times, the cost of products is high, and the product competitiveness of enterprises is reduced.
Disclosure of Invention
The utility model aims to provide a backlight module structure compatible with a grating and a touch screen, which can be converted between a 3D function and a touch screen function structure, and meanwhile, the assembly efficiency is improved, and the production cost of products is reduced.
Therefore, the utility model provides a backlight module structure compatible with a grating and a touch screen, which is provided with a sheet metal backboard, a middle frame, a front frame and a liquid crystal screen, wherein the inner side surface of the middle frame is provided with a bearing support plate in an extending way, four corners of the outer side surface of the bearing support plate are respectively provided with a pair of conversion frames, the liquid crystal screen is clamped on the inner side of the conversion frames, and the front frame and the sheet metal backboard are respectively buckled on the front side and the rear side of the middle frame.
Preferably, the end face of the conversion frame is flush with the end face of the middle frame, and the grating is arranged on the outer side of the liquid crystal screen and clamped on the inner side of the conversion frame.
Preferably, the end face of the conversion frame is lower than the end face of the middle frame, the touch screen is arranged on the outer side of the conversion frame, and meanwhile the touch screen is clamped on the inner side of the middle frame.
Preferably, the side edge of the middle frame is provided with a first limiting hole, the bearing support plate is provided with a positioning hole, the side edge of the metal plate backboard extends to be provided with a positioning column, the outer side of the side edge of the metal plate backboard is provided with a first limiting bulge, the positioning column is arranged in the positioning hole, and meanwhile the first limiting bulge is arranged in the first limiting hole, so that the metal plate backboard and the middle frame are fixed together.
Preferably, the panel beating backplate still is equipped with limit baffle towards the one side of optics piece cavity, and the panel beating backplate all is equipped with two with limit baffle of one side, and the both sides of optics diaphragm, light guide plate, reflector plate all are equipped with the location limit, and the location limit is located between the limit baffle, and the position that bears the weight of the baffle and corresponds limit baffle still is equipped with positioning groove.
Preferably, the outer side of the side edge of the middle frame is provided with a second limiting protrusion, the side edge of the front frame is provided with a second limiting hole, and the second limiting protrusion is arranged in the second limiting hole, so that the front frame is buckled on the outer side of the middle frame.
Preferably, the bottom side of the front frame is upwards folded and provided with a fixing plate, and the fixing plate is fixedly connected with the sheet metal backboard through a PCBA protection cover plate.
The utility model provides a backlight module structure compatible with a grating and a touch screen, which has the following beneficial effects:
the utility model has simple structure, and can make the backlight module not only match with the grating, but also match with the touch screen by utilizing different conversion frames, thereby achieving the purpose of assembling two backlight module structures and making the assembled backlight module capable of being converted between the 3D function and the touch screen function structure. The utility model utilizes the same set of backlight module molds, and the money exchange of different middle frames is only realized by the four-angle inserts, so that the investment of the molds of different backlight module structures is reduced, the whole machine assembly efficiency is improved by screw design, the production cost of products is reduced, the product competitiveness of enterprises is improved, and the utility model can be widely applied to the technical field of liquid crystal modules.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the sheet metal back plate of the present utility model;
FIG. 3 is a schematic view of the structure of the middle frame of the present utility model;
FIG. 4 is a schematic view of the structure of the front frame of the present utility model;
FIG. 5 is a schematic diagram of the structure of the grating and middle frame matching (front frame removed) of example 1;
FIG. 6 is a schematic diagram of the structure of the touch screen of embodiment 2 matching the middle frame (with the front frame removed);
fig. 7 is a schematic view of embodiment 2 with the sheet metal back plate removed.
The marks in the figure: 1. the liquid crystal display panel comprises a metal plate backboard, 11, a positioning column, 12, a first limiting bulge, 13, a limiting baffle, 2, a middle frame, 21, a bearing support plate, 211, a positioning hole, 212, a positioning groove, 213, a reinforcing rib, 22, a conversion frame, 23, a first limiting hole, 24, a second limiting bulge, 3, a front frame, 31, a second limiting hole, 32, a fixing plate, 33, a third positioning bulge, 4, a liquid crystal screen, 5, a grating and 6.
Detailed Description
The utility model will be further described with reference to the drawings and specific examples to aid in understanding the context of the utility model. The method used in the utility model is a conventional method unless specified otherwise; the raw materials and devices used, unless otherwise specified, are all conventional commercial products.
Example 1
As shown in fig. 1-5 and 7, the utility model provides a backlight module structure compatible with a grating and a touch screen, which is provided with a metal plate backboard 1, a middle frame 2, a front frame 3 and a liquid crystal screen 4, wherein the inner side surface of the middle frame 2 is provided with a bearing support plate 21 in an extending way, the extending direction of the bearing support plate 21 is perpendicular to the extending direction of the side edge of the middle frame 2, four corners of the outer side surface (one side, which is attached to the liquid crystal screen 4), of the bearing support plate 21 are respectively provided with a pair of conversion frames 22, the end surfaces of the conversion frames 22 are flush with the end surface of the middle frame 2, one opposite surface of the conversion frames 22 forms a right angle, the four corners of the liquid crystal screen 4 are limited to be clamped on the inner side of the conversion frames 22, and the back surface of the liquid crystal screen 4 is fixedly connected with the bearing support plate 21 through double-sided tape.
In order to expand the 3D function of the backlight module, the outer side of the liquid crystal screen 4 is also provided with a grating 5, the grating 5 is also clamped on the inner side of the conversion frame 22, gaps are controlled by dispensing or attaching silica gel strips around the grating 5 and the liquid crystal screen 4, and the outer end face of the grating 5 is level with the end face of the conversion frame 22. The outside of grating 5 still is equipped with preceding frame 3, and preceding frame 3 passes through the buckle structure buckle in the outside of center 2, fixes grating 5 between preceding frame 3 and LCD screen 4. The metal plate backboard 1 is buckled on the rear side of the middle frame 2 through a buckling structure, an optical piece cavity is formed among the front frame 3, the liquid crystal screen 4, the middle frame 2 and the metal plate backboard 1, and optical components such as an optical diaphragm, a light guide plate and a reflecting plate are sequentially arranged in the optical piece cavity to form a backlight module structure.
Preferably, the side edge of the middle frame 2 is provided with a first limiting hole 23, the bearing support plate 21 is provided with a positioning hole 211, the side edge of the metal plate backboard 1 is extended to be provided with a positioning column 11, and the outer side of the side edge of the metal plate backboard 1 is provided with a first limiting protrusion 12. During assembly, the positioning column 11 is aligned with the positioning hole 211, the metal plate backboard 1 and the middle frame 2 are clamped, at this time, the positioning column 11 is arranged in the positioning hole 211, meanwhile, the first limiting protrusion 12 is arranged in the first limiting hole 23, the metal plate backboard 1 and the middle frame 2 are clamped and fixed together, and the assembly mode is simple and quick, the traditional screwing step is avoided, and the assembly efficiency is improved.
The left and right ends of the inner side (the side facing the cavity of the optical piece) of the metal plate backboard 1 are also provided with limit baffles 13, the limit baffles 13 on the same side of the metal plate backboard 1 are respectively provided with two, the two sides of the optical membrane, the light guide plate and the reflecting sheet are respectively provided with a positioning edge, the positioning edges are arranged between the limit baffles 13, the position of the bearing support plate 21 corresponding to the limit baffles 13 is also provided with a positioning groove 212, and after the middle frame 2 is buckled with the metal plate backboard 1, the limit baffles 13 are arranged in the positioning groove 212. The arrangement of the limit baffle 13 and the positioning groove 212 further improves the assembly efficiency of the sheet metal backboard 1 and the middle frame 2 on one hand, and limits the optical diaphragm, the light guide plate and the reflecting sheet on the other hand, so that the installation accuracy is ensured.
The outer side of the side edge of the middle frame 2 is provided with a second limiting protrusion 24, the side edge of the front frame 3 is provided with a second limiting hole 31, and the second limiting protrusion 24 is arranged in the second limiting hole 31, so that the front frame 3 is buckled on the outer side of the middle frame 2.
The bottom side of the front frame 3 is upwards folded and provided with a fixing plate 32, and the fixing plate 32 is fixedly connected with the sheet metal backboard 1 through a PCBA protection cover plate by utilizing screws. The whole machine screw is only provided with three screws, so that the front frame 3, the middle frame 2 and the sheet metal backboard 1 are connected more firmly on the premise of ensuring the assembly efficiency.
The bottom side of the front frame 3 is also provided with a third positioning bulge 33 inwards, the bottom side of the middle frame 2 is provided with a corresponding sinking platform structure, and the third positioning bulge 33 is arranged in the sinking platform structure, so that the positioning and the installation of the front frame 3 and the middle frame 2 are further facilitated.
Further, the first limiting protrusion 12, the second limiting protrusion 24 and the third positioning protrusion 33 are provided with an insertion inclined plane and a right-angle blocking plane, which is beneficial to assembly and falling prevention.
Further, the two sides of the bearing support plate 21 are provided with the reinforcing ribs 213, so that the overall structural strength of the device is enhanced.
The upper side and the lower side of the metal plate backboard 1 are also provided with lamp strips, and the highlight display requirement is easily realized by the arrangement of the upper lamp strip and the lower lamp strip.
The back and the periphery of the metal plate backboard 1 are also reserved with a plurality of tooth drawing holes and positioning convex hulls, so that the expansion and application of products are facilitated.
Example 2
As shown in fig. 6, the difference between the present embodiment and embodiment 1 is that the touch screen function is implemented instead of the 3D function of the extended backlight module. In order to achieve this function, the end face of the conversion frame 22 of this embodiment is lower than the end face of the middle frame 2, the touch screen 6 instead of the grating 5 is disposed on the outer side of the liquid crystal screen 4, and the touch screen 6 is disposed on the outer side of the conversion frame 22, and is clamped on the inner side of the middle frame 2 and is flush with the end face of the middle frame 2. The four corners of the middle frame 2 are utilized for limiting and mounting the touch screen 6, and gaps are controlled by dispensing or attaching silica gel strips around the touch screen 6 and the liquid crystal screen 4, so that the realization of functions is ensured.
The utility model has simple structure, and can match the backlight module with the grating 5 and the touch screen 6 by using different conversion frames 22, thereby achieving the aim of assembling two backlight module structures and enabling the backlight module to be converted between a 3D function and a touch screen 6 function structure. The utility model utilizes the same set of backlight module molds, and the money exchange of different middle frames 2 is only realized by the four-angle inserts, so that the investment of the molds of different backlight module structures is reduced, the whole machine assembly efficiency is improved by screw removal design, the production cost of products is reduced, the product competitiveness of enterprises is improved, and the utility model can be widely applied to the technical field of liquid crystal modules.
In the description of the present utility model, it should be understood that the terms "left", "right", "upper", "lower", "top", "bottom", "front", "rear", "inner", "outer", "back", "middle", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must be provided with specific orientations, be configured and operated in specific orientations, and thus are not to be construed as limiting the present utility model.
However, the foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, so that the substitution of equivalent elements or equivalent variations and modifications within the scope of the utility model are intended to fall within the scope of the claims.
Claims (7)
1. The utility model provides a compatible grating and touch-sensitive screen's backlight unit structure, its is equipped with panel beating backplate, center, preceding frame and LCD screen, its characterized in that, the inboard of center is towards inboard extension and is equipped with and bears the extension of extension, it is equipped with a pair of conversion frame respectively to bear extension board lateral surface four corners, the LCD screen card is located the conversion frame is inboard, preceding frame the panel beating backplate buckle respectively in both sides around the center.
2. The backlight module structure compatible with the grating and the touch screen according to claim 1, wherein the end face of the conversion frame is flush with the end face of the middle frame, the grating is arranged on the outer side of the liquid crystal screen, and the grating is clamped on the inner side of the conversion frame.
3. The backlight module structure compatible with the grating and the touch screen according to claim 1, wherein the end face of the conversion frame is lower than the end face of the middle frame, and the touch screen is arranged on the outer side of the conversion frame and clamped on the inner side of the middle frame.
4. A backlight module structure compatible with a grating and a touch screen according to any one of claims 2 or 3, wherein a first limiting hole is formed in the side edge of the middle frame, a positioning hole is formed in the bearing support plate, a positioning column is arranged in an extending mode on the side edge of the metal plate backboard, a first limiting protrusion is arranged on the outer side of the side edge of the metal plate backboard, and the positioning column is arranged in the positioning hole, and meanwhile the first limiting protrusion is arranged in the first limiting hole, so that the metal plate backboard and the middle frame are fixed together.
5. The backlight module structure compatible with the grating and the touch screen according to claim 4, wherein a limit baffle is further arranged on one surface of the metal plate back plate facing the cavity of the optical piece, two limit baffles are arranged on the same side of the metal plate back plate, positioning edges are arranged on two sides of the optical membrane, the light guide plate and the reflecting sheet, the positioning edges are arranged between the limit baffles, and a positioning groove is further arranged at the position of the bearing support plate corresponding to the limit baffle.
6. A backlight module structure compatible with a grating and a touch screen according to any one of claims 2 or 3, wherein a second limiting protrusion is arranged on the outer side of the side edge of the middle frame, a second limiting hole is arranged on the side edge of the front frame, and the second limiting protrusion is arranged in the second limiting hole, so that the front frame is buckled on the outer side of the middle frame.
7. The backlight module structure compatible with the grating and the touch screen as claimed in claim 6, wherein a fixing plate is arranged on the side edge of the bottom of the front frame in an upward folding manner, and the fixing plate is fixedly connected with the sheet metal backboard through a PCBA protection cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321263616.9U CN219811106U (en) | 2023-05-24 | 2023-05-24 | Backlight module structure compatible with grating and touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321263616.9U CN219811106U (en) | 2023-05-24 | 2023-05-24 | Backlight module structure compatible with grating and touch screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219811106U true CN219811106U (en) | 2023-10-10 |
Family
ID=88212871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321263616.9U Active CN219811106U (en) | 2023-05-24 | 2023-05-24 | Backlight module structure compatible with grating and touch screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219811106U (en) |
-
2023
- 2023-05-24 CN CN202321263616.9U patent/CN219811106U/en active Active
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