CN219435182U - Luminous liquid crystal module backboard structure - Google Patents
Luminous liquid crystal module backboard structure Download PDFInfo
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- CN219435182U CN219435182U CN202320370791.1U CN202320370791U CN219435182U CN 219435182 U CN219435182 U CN 219435182U CN 202320370791 U CN202320370791 U CN 202320370791U CN 219435182 U CN219435182 U CN 219435182U
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- heat dissipation
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- back plate
- cavity
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Planar Illumination Modules (AREA)
Abstract
The embodiment provides a luminescent liquid crystal module backboard structure, which comprises a backboard, a luminescent component, a light guide plate, a heat dissipation piece and a liquid crystal screen, wherein a placement cavity with an upward opening is arranged in the backboard, a heat dissipation air suction piece is arranged at the bottom of the placement cavity, and the air outlet end of the heat dissipation air suction piece is communicated with the outside; the light-emitting component is arranged in the placing cavity; the light guide plate is arranged in the placing cavity, and the light incident side of the light guide plate is arranged on the light emitting side of the light emitting component; the radiating piece is arranged on one side of the light-emitting component, a plurality of radiating air channels are arranged on the radiating piece, and the radiating air channels are communicated with the air inlet end of the radiating air draft piece; the liquid crystal display is arranged on one side of the light guide plate away from the bottom of the placing cavity, so that the heat dissipation air draft piece can drive air inside the heat dissipation air duct to flow to the outside, heat on the heat dissipation piece is taken away through air flow, and heat inside the back plate structure of the luminous liquid crystal module is taken away.
Description
Technical Field
The utility model relates to the technical field of light guide assemblies, in particular to a back plate structure of a light-emitting liquid crystal module.
Background
In the current market, in order to improve the brightness of the display, a high-power LED lamp strip is generally installed on the upper side and the lower side of the module respectively for the highlight liquid crystal display with side lighting, and the light energy of the LEDs is enhanced through a plurality of high-power LED lamp beads on the high-power LED lamp strip so as to achieve the effect of the highlight liquid crystal display.
However, the high-brightness module is characterized in that when the high-power LED lamp beads are used for working, the LED lamp beads can generate a large amount of heat energy, the large amount of heat energy is inside a backlight module which is a key component of the liquid crystal display, the inside of the backlight module is relatively sealed due to the dustproof effect, the heat energy cannot be effectively emitted inside the backlight module, the internal light guide plate can be deformed for a long time, the optical membrane is yellowing, meanwhile, the LED lamp beads work at high temperature for a long time, the service life is seriously influenced, and the display is finally abnormal.
Disclosure of Invention
Therefore, the technical problem to be solved by the utility model is that the highlight module in the prior art, when the high-power LED lamp beads are used for working, the LED lamp beads can generate a large amount of heat energy, the large amount of heat energy is in the backlight module which is a key component of the liquid crystal display, the inside of the backlight module is relatively sealed due to the dustproof effect, the heat energy cannot be effectively emitted in the backlight module, the internal light guide plate can be deformed for a long time, the optical film is yellowing, and meanwhile, the LED lamp beads work at high temperature for a long time, so that the service life is seriously influenced, and finally, the display is abnormal.
Therefore, the utility model provides a back plate structure of a light-emitting liquid crystal module, which comprises the following components:
the back plate is internally provided with a placing cavity with an upward opening, the bottom of the placing cavity is provided with a heat dissipation air draft piece, and the air outlet end of the heat dissipation air draft piece is communicated with the outside;
the light-emitting component is arranged in the placing cavity;
the light guide plate is arranged in the placing cavity, and the light incident side of the light guide plate is arranged on the light emitting side of the light emitting component;
the radiating piece is arranged on one side of the luminous component, a plurality of radiating air channels are arranged on the radiating piece, and the radiating air channels are communicated with the air inlet end of the radiating air draft piece.
Optionally, the heat dissipation piece is L-shaped and is arranged at the corner of the bottom of the placing cavity, and the heat dissipation air duct is arranged at one side, close to the side wall of the placing cavity, of the heat dissipation piece.
Optionally, the radiating piece is close to place chamber diapire one side and be provided with a plurality of support columns, so that the radiating piece is close to place chamber diapire one side with place and be formed with the chamber that converges between the chamber diapire, the chamber that converges communicates the heat dissipation wind channel with the heat dissipation convulsions piece inlet end.
Optionally, the number of the heat dissipation elements is two, and the two heat dissipation elements are arranged on two opposite side surfaces of the placing cavity.
Optionally, be equipped with a plurality of archs on the chamber diapire of placing, protruding with light guide plate side butt is so that the light guide plate with place and be formed with the ventilation chamber between the chamber diapire, the ventilation chamber with the heat dissipation wind channel intercommunication.
Optionally, the height of the bottom of the heat dissipation part in the shape of L is identical to the height of the protrusion, and the light guide plate is arranged on the bottom of the heat dissipation part and the upper surface of the protrusion.
Optionally, the light emitting assembly includes:
the substrate is arranged on one side of the radiating piece far away from the side wall of the placing cavity;
the LED lamp beads are arranged on the substrate, and the LED lamp beads are arranged on the light inlet side of the light guide plate.
Optionally, the back plate structure of the light-emitting liquid crystal module further comprises a middle frame support, and a folded edge bent towards the back plate direction is arranged on one side, close to the back plate, of the middle frame support so as to be sleeved on the outer side of the back plate.
Optionally, the back plate structure of the light-emitting liquid crystal module further comprises a plurality of optical films, and the optical films are arranged between the light emitting surface of the light guide plate and the middle frame support.
Optionally, the back plate structure of the light-emitting liquid crystal module further comprises a reflecting sheet, and the reflecting sheet is arranged between the light guide plate and the bottom wall of the placing cavity.
The back plate structure of the luminous liquid crystal module provided by the utility model has the following advantages:
1. the utility model provides a back plate structure of a light-emitting liquid crystal module, which comprises a back plate, a light-emitting component, a light guide plate and a heat dissipation part, wherein a placing cavity with an upward opening is arranged in the back plate, a heat dissipation air suction part is arranged at the bottom of the placing cavity, and the air outlet end of the heat dissipation air suction part is communicated with the outside; the light-emitting component is arranged in the placing cavity; the light guide plate is arranged in the placing cavity, and the light incident side of the light guide plate is arranged on the light emitting side of the light emitting component; the radiating piece is arranged on one side of the luminous component, a plurality of radiating air channels are arranged on the radiating piece, and the radiating air channels are communicated with the air inlet end of the radiating air draft piece.
The luminous liquid crystal module backboard structure of this structure is equipped with a plurality of heat dissipation wind channels through setting up the radiating piece in luminous subassembly one side on the radiating piece, the radiating wind channel communicates with the radiating air extraction piece air inlet end that sets up in the backplate bottom for the radiating air extraction piece can drive the inside air of radiating wind channel and flow to the external world, and then takes away the heat on the radiating piece through the air flow, and then takes away the inside heat of luminous liquid crystal module backboard structure, so as to avoid luminous liquid crystal module backboard structure inside high temperature, can arouse inside light guide plate deformation for a long time, optics diaphragm yellowing, and avoid the LED lamp pearl to work under high temperature for a long time, seriously influence life, finally lead to the display unusual.
2. The utility model provides a back plate structure of a light-emitting liquid crystal module, wherein a plurality of support columns are arranged on one side, close to the bottom wall of a placing cavity, of a heat dissipation part, so that a converging cavity is formed between one side, close to the bottom wall of the placing cavity, of the heat dissipation part and the bottom wall of the placing cavity, and the converging cavity is communicated with a heat dissipation air duct and an air inlet end of a heat dissipation air draft part.
The luminous liquid crystal module backboard structure with the structure is characterized in that two rows of supporting columns are arranged on one side, close to the bottom wall of the placement cavity, of the radiating piece, a converging cavity is formed between one side, close to the bottom wall of the placement cavity, of the radiating piece and the bottom wall of the placement cavity, the converging cavity is communicated with the radiating air duct, and then air in the converging cavity moves together with air in the radiating air duct to radiate the interior of the luminous liquid crystal module backboard structure.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of the front structure of a back plate structure of a light-emitting liquid crystal module according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of a back structure of a back plate of a light-emitting liquid crystal module according to an embodiment of the present utility model;
FIG. 3 is a schematic diagram illustrating a heat dissipation element in a back plate structure of a light-emitting liquid crystal module according to an embodiment of the present utility model;
FIG. 4 is an enlarged view of the structure at circle B in FIG. 3;
FIG. 5 is a block diagram of a heat sink in a back plate structure of a light-emitting liquid crystal module according to an embodiment of the present utility model;
FIG. 6 is an enlarged view of the structure at circle C in FIG. 5;
FIG. 7 is a cross-sectional view of a heat sink in a back plate structure of a light-emitting liquid crystal module according to an embodiment of the present utility model;
FIG. 8 is an enlarged view of the structure at circle D in FIG. 7;
FIG. 9 is a schematic diagram of a heat dissipation air duct of a back plate structure of a light-emitting liquid crystal module according to an embodiment of the present utility model;
FIG. 10 is an enlarged view of the structure at circle E in FIG. 9;
fig. 11 is a schematic diagram illustrating bottom heat dissipation of a heat dissipation air duct of a back plate structure of a light-emitting liquid crystal module according to an embodiment of the present utility model.
Reference numerals illustrate:
1-a back plate;
2-a heat-dissipation air suction piece;
3-a light emitting assembly; 31-a substrate; 32-LED lamp beads;
4-a light guide plate;
5-a heat sink; 51-a heat dissipation air duct; 52-supporting columns;
6-a liquid crystal screen;
7-a middle frame bracket;
8-an optical film;
9-reflecting sheet.
Detailed Description
The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.
Examples
The embodiment provides a back plate structure of a light-emitting liquid crystal module, which comprises a back plate 1, a light-emitting component 3, a heat dissipation piece 5, a light guide plate 4, a middle frame support 7, an optical membrane 8 and a reflecting sheet 9. The back plate structure of the light-emitting liquid crystal module is arranged on one side of the liquid crystal screen 6.
As shown in fig. 1, 7 and 8, a placing cavity with an upward opening is arranged in the back plate 1, a heat dissipation piece 5 is arranged at the bottom of the placing cavity, the light emitting component 3 comprises a substrate 31 and an LED lamp bead 32, the substrate 31 is arranged at one side of the heat dissipation piece 5 far away from the side wall of the placing cavity, the LED lamp bead 32 is arranged on the substrate 31, the light guide plate 4 is arranged at the bottom of the placing cavity, and the LED lamp bead 32 is arranged at the light inlet side of the light guide plate 4; the optical film 8 is arranged on the light-emitting surface of the upper side of the light guide plate 4, the reflecting sheet 9 is arranged between the bottom of the light guide plate 4 and the bottom wall of the placing cavity, the middle frame support 7 is arranged above the optical film 8, a through groove is formed in the middle of the middle frame support 7, the area of the through groove is smaller than that of the optical film 8, and after the middle frame support 7 is covered on the optical film 8, the peripheral folded edges of the middle frame support 7 are clamped on the periphery of the backboard 1.
As shown in fig. 3, the number of the heat dissipation elements 5 is two, and the two heat dissipation elements 5 are respectively arranged at the left side and the right side of the back plate 1; as shown in fig. 4, 5 and 6, two heat dissipation elements 5 are L-shaped and are respectively arranged at the left side corner and the right side corner of the bottom of the placing cavity, and the heat dissipation elements 5 are abutted with the side wall of the placing cavity; the side of the side wall of the bottom corner of the placing cavity, close to the heat dissipation part 5, is provided with a plurality of heat dissipation air channels 51, the heat dissipation air channels 51 are grooves formed in the surface of the heat dissipation part 5, the heat dissipation air channels 51 are arranged at equal intervals, and two rows of support columns 52 are arranged on the side of the bottom wall of the placing cavity, close to the heat dissipation part 5, so that a converging cavity is formed between the side of the bottom wall of the placing cavity, close to the heat dissipation part 5, and the bottom wall of the placing cavity, and the converging cavity is communicated with the heat dissipation air channels 51.
As shown in fig. 3, the bottom wall of the placement cavity is provided with a protrusion, the height of the bottom part of the L-shaped heat dissipation part 5 is consistent with the height of the protrusion, the bottom of the protrusion and the bottom part of the heat dissipation part 5 are all in butt joint with the side surface of the light guide plate 4, so that the light guide plate 4 can be placed horizontally, a ventilation cavity is formed between the light guide plate 4 and the bottom wall of the placement cavity, and the ventilation cavity is communicated with the converging cavity and the heat dissipation air duct 51.
As shown in fig. 2, two through grooves a are formed in the bottom of the back plate 1, a heat dissipation air suction member 2 is arranged in each through groove a, the heat dissipation air suction member 2 is a fan, the air inlet end of the fan is arranged in the ventilation cavity, the air inlet end of the fan can be communicated with the converging cavity and the heat dissipation air duct 51, and air in the ventilation cavity, the converging cavity and the heat dissipation air duct 51 is driven by the fan to flow along the directions shown in fig. 9, 10 and 11, so that heat on the heat dissipation member 5 can be taken away to dissipate heat inside the structure of the back plate 1.
In the light-emitting liquid crystal module back plate structure provided in this embodiment, when the light-emitting liquid crystal module back plate structure is cooled, two fans located at the bottom of the back plate 1 are started, and the fans drive air in the ventilation cavity, the confluence cavity and the cooling air duct 51 to flow along the directions shown in fig. 9 and 10, so that heat on the cooling piece 5 can be taken away to cool the inside of the back plate 1 structure.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.
Claims (10)
1. A luminescent liquid crystal module back plate structure, comprising:
the back plate (1) is internally provided with a placing cavity with an upward opening, the bottom of the placing cavity is provided with a heat dissipation air draft piece (2), and the air outlet end of the heat dissipation air draft piece (2) is communicated with the outside;
a light emitting component (3) arranged in the placing cavity;
the light guide plate (4) is arranged in the placing cavity, and the light inlet side of the light guide plate (4) is arranged on the light emitting side of the light emitting component (3);
the radiating piece (5) is arranged on one side of the luminous component (3), a plurality of radiating air channels (51) are arranged on the radiating piece (5), and the radiating air channels (51) are communicated with the air inlet end of the radiating air draft piece (2).
2. The back plate structure of the light-emitting liquid crystal module according to claim 1, wherein the heat dissipation part (5) is L-shaped and arranged at the bottom corner of the placing cavity, and the heat dissipation air duct (51) is arranged at one side of the heat dissipation part (5) close to the side wall of the placing cavity.
3. The back plate structure of the light-emitting liquid crystal module according to claim 2, wherein a plurality of support columns (52) are arranged on one side of the heat dissipation part (5) close to the bottom wall of the placement cavity, so that a converging cavity is formed between one side of the heat dissipation part (5) close to the bottom wall of the placement cavity and the bottom wall of the placement cavity, and the converging cavity is communicated with the heat dissipation air duct (51) and the air inlet end of the heat dissipation air draft part (2).
4. A light emitting liquid crystal module back plate structure according to claim 3, wherein the number of the heat dissipation elements (5) is two, and the two heat dissipation elements (5) are disposed on two opposite sides of the placement cavity.
5. A light-emitting liquid crystal module backboard structure according to claim 3, characterized in that the bottom wall of the placement cavity is provided with a plurality of protrusions, the protrusions are abutted against the side surface of the light guide plate (4), so that a ventilation cavity is formed between the light guide plate (4) and the bottom wall of the placement cavity, and the ventilation cavity is communicated with the heat dissipation air duct (51).
6. The back plate structure of the light-emitting liquid crystal module according to claim 5, wherein the bottom of the heat dissipation member (5) is in an L shape and has a height identical to the height of the protrusion, and the light guide plate (4) is disposed at the bottom of the heat dissipation member (5) and on the upper surface of the protrusion.
7. The light emitting liquid crystal module back plate structure according to any one of claims 1 to 6, wherein the light emitting assembly (3) comprises:
the base plate (31) is arranged on one side of the heat dissipation piece (5) far away from the side wall of the placing cavity;
the LED lamp beads (32) are arranged on the substrate (31), and the LED lamp beads (32) are arranged on the light inlet side of the light guide plate (4).
8. The back plate structure of the light-emitting liquid crystal module according to claim 7, further comprising a middle frame support (7), wherein a folded edge bent towards the back plate (1) is arranged on one side of the middle frame support (7) close to the back plate (1) so as to be sleeved outside the back plate (1).
9. The back plate structure of the light-emitting liquid crystal module according to claim 8, further comprising a plurality of optical films (8), wherein the optical films (8) are arranged between the light-emitting surface of the light guide plate (4) and the middle frame support (7).
10. The back plate structure of a light-emitting liquid crystal module according to claim 9, further comprising a reflective sheet (9), wherein the reflective sheet (9) is disposed between the light guide plate (4) and the bottom wall of the placement cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320370791.1U CN219435182U (en) | 2023-03-02 | 2023-03-02 | Luminous liquid crystal module backboard structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320370791.1U CN219435182U (en) | 2023-03-02 | 2023-03-02 | Luminous liquid crystal module backboard structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219435182U true CN219435182U (en) | 2023-07-28 |
Family
ID=87345373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320370791.1U Active CN219435182U (en) | 2023-03-02 | 2023-03-02 | Luminous liquid crystal module backboard structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219435182U (en) |
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2023
- 2023-03-02 CN CN202320370791.1U patent/CN219435182U/en active Active
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