CN211956070U - Backlight module, liquid crystal module and display device - Google Patents
Backlight module, liquid crystal module and display device Download PDFInfo
- Publication number
- CN211956070U CN211956070U CN202020416128.7U CN202020416128U CN211956070U CN 211956070 U CN211956070 U CN 211956070U CN 202020416128 U CN202020416128 U CN 202020416128U CN 211956070 U CN211956070 U CN 211956070U
- Authority
- CN
- China
- Prior art keywords
- middle frame
- backlight module
- light source
- led light
- connecting member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a backlight module, liquid crystal module and display device relates to and shows technical field. The backlight module comprises a middle frame, an optical diaphragm, an LED light source strip and a connecting part, wherein the optical diaphragm is arranged in an area surrounded by the middle frame, the LED light source strip is arranged on the inner wall of the middle frame and located on one side of the optical diaphragm, the connecting part is arranged on the middle frame in a sliding mode along a first direction, the first direction is perpendicular to one side, provided with the LED light source strip, of the backlight module, the connecting part comprises a hook, and a hanging lug on the optical diaphragm can be arranged on the middle frame through the hook. The optical diaphragm of the backlight module is movably arranged on the middle frame, the influence of tolerance accumulation is overcome by adjusting the relative position of the optical diaphragm and the middle frame, the black shading area of the optical diaphragm can be adjusted to cover the LED light source strip, the light leakage is avoided, and the structure is simple and ingenious.
Description
Technical Field
The utility model relates to a show technical field, especially relate to a backlight module, liquid crystal module and display device.
Background
With the pursuit of consumers for ultra-thinness and ultra-narrow sides, the thickness of the liquid crystal module is thinner and the frame is narrower, and in the structure of the traditional side-entry backlight module, because the LED light source strips are arranged on the side edges of the liquid crystal module, the distance between the LED light source strips and the liquid crystal panel is smaller and smaller, and light leakage or other bad problems are easily caused.
In order to solve the problem, a black shading area with the width of 4mm-7mm is generally arranged on the light source side of the optical diaphragm, and the optical diaphragm is used for covering the LED light source strip to prevent light from overflowing. However, due to the processing tolerance and the assembly tolerance of each material, after actual assembly, the optical film mounted on the middle frame cannot move, so that the problem that the black shading area of the optical film cannot shade the LED light source bars often occurs, and the problem is more serious when the overall size of the backlight module is larger.
Therefore, it is an urgent need to solve the above-mentioned problems by those skilled in the art to improve the conventional backlight module.
SUMMERY OF THE UTILITY MODEL
A first object of the utility model is to provide a backlight unit, its optics diaphragm is movably to be set up in the center, through the relative position who adjusts optics diaphragm and center, overcomes tolerance accumulation's influence, makes the black shading area of optics diaphragm can adjust to hiding the LED light source strip, avoids taking place the light leak, and simple structure is ingenious.
A second object of the utility model is to provide a liquid crystal module, can adjust the relative position of optics diaphragm and center through above-mentioned backlight unit, overcome tolerance accumulation's influence, make the black shading area of optics diaphragm can adjust to hiding the LED light source strip, avoid taking place the light leak.
A third object of the present invention is to provide a display device, which can avoid light leakage and improve the visual effect of the display device.
To achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a backlight module, includes center, optics diaphragm and LED light source strip, optics diaphragm set up in the region that the center encloses, LED light source strip set up in the center inner wall and be located one side of optics diaphragm still includes:
the connecting part is arranged on the middle frame in a sliding mode along a first direction, the first direction is perpendicular to one side, provided with the LED light source strips, of the backlight module, the connecting part comprises a hook, and a hanging lug on the optical membrane can be arranged on the middle frame through the hook.
The optical diaphragm of the backlight module is movably arranged in the middle frame through the connecting part, the influence of tolerance accumulation can be overcome by adjusting the relative position of the optical diaphragm and the middle frame, the black shading area of the optical diaphragm can be adjusted to cover the LED light source strip, the light leakage is avoided, and the backlight module is simple and ingenious in structure.
Optionally, the connecting member is provided with a guide hole extending along the first direction, and the connecting member is connected to the middle frame by a fixing member passing through the guide hole, the fixing member being configured to be able to slide relative to the guide hole or lock the connecting member.
The directional movement of the optical diaphragm relative to the middle frame can be conveniently realized through the guide hole, so that the position adjustment is more accurate.
Optionally, the connecting member is provided with a plurality of guide holes.
The accuracy and the stability of the directional movement are improved through the guide holes.
Optionally, the hook comprises a hook main body and a limiting part, one end of the hook main body is connected with the connecting part body, the other end of the hook main body is connected with the limiting part, and a limiting groove is formed among the hook main body, the limiting part and the connecting part body.
The hook can prevent the optical film from warping and falling off, and the assembly reliability is improved.
Optionally, a connecting hole is formed in the hanging lug, and the optical diaphragm is hung in the limiting groove through the connecting hole.
The optical diaphragm is hung in the limiting groove through the connecting hole, so that the operation is convenient, the assembly effect is good, and the processing is simple.
Optionally, the intersection of each side surface of the limiting part and the connection part of the limiting part and the hook main body are provided with chamfers.
By utilizing the chamfer, on one hand, the optical diaphragm can be prevented from being scratched, and on the other hand, the optical diaphragm is convenient to assemble smoothly.
Optionally, a groove is concavely formed in one side, provided with the connecting part, of the middle frame, the groove is communicated with the inner side face of the middle frame, and the connecting part is arranged in the groove.
The groove is favorable for meeting requirements of ultra-thin and ultra-narrow edges, and meanwhile, after the hanging lug is hung on the hook, the hanging lug of the optical diaphragm is interfered with one side of the groove close to the inside of the middle frame, so that the flatness of the optical diaphragm can be guaranteed while poor assembly is avoided.
Optionally, the middle frame is provided with a plurality of grooves, and each groove is provided with one connecting part.
Through setting up a plurality of more being favorable to realizing the stable installation of optical film piece and center.
A liquid crystal module comprises the backlight module.
A display device comprises the liquid crystal module.
The utility model has the advantages that:
the utility model provides a backlight module, including center, optics diaphragm, LED light source strip and adapting unit, the optics diaphragm sets up in the region that the center encloses, and the LED light source strip sets up in the center inner wall and lies in one side of optics diaphragm, and adapting unit slides along the first direction and sets up on the center, and first direction is mutually perpendicular with one side of backlight module that is provided with LED light source strip, is provided with the couple on the adapting unit, and the hangers on the optics diaphragm can set up on the center through the couple. The optical diaphragm of the backlight module is movably arranged in the middle frame through the connecting part, and the influence of tolerance accumulation is overcome by adjusting the relative position of the optical diaphragm and the middle frame, so that the black shading area of the optical diaphragm can be adjusted to cover the LED light source strip, the light leakage is avoided, and the backlight module is simple and ingenious in structure.
Drawings
Fig. 1 is a schematic view of an angle structure of a backlight module according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another angle of the backlight module according to the embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2;
fig. 4 is a schematic structural diagram of a connecting component of a backlight module according to an embodiment of the present invention.
In the figure:
1. a middle frame; 2. an optical film; 3. an LED light source bar; 4. a connecting member; 41. hooking; 21. hanging a lug; 42. a guide hole; 11. a fixing member; 411. a hook main body; 412. a limiting part.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
As shown in fig. 1-3, the present embodiment provides a backlight module, which includes a middle frame 1, an optical film 2 and LED light source strips 3, wherein the optical film 2 is disposed in an area enclosed by the middle frame 1, and the LED light source strips 3 are disposed on an inner wall of the middle frame 1 and located on one side of the optical film 2. In the middle frame in the prior art, the hook arranged on the middle frame is matched with the hanging lug of the optical membrane in a hanging way, so that the optical membrane is reliably assembled on the middle frame. Because the couple among the prior art is fixed on the center, after couple and hangers articulate the cooperation, the unable relative center of optical diaphragm removed, and there are all kinds of tolerances in the actual production process, and the accumulation of tolerance leads to the unable LED light source strip that covers in the black shading area that sets up of the tip towards LED light source strip of optical diaphragm after the assembly, takes place the light and spills over the phenomenon, has influenced backlight unit's qualification rate.
In order to solve the above problems, the backlight module proposed in this embodiment further includes a connecting component 4, the optical film 2 is movably connected to the middle frame 1 through the connecting component 4, specifically, the connecting component 4 is slidably disposed on the middle frame 1 along a first direction, and the first direction is perpendicular to a side of the backlight module where the LED light source strips 3 are disposed; the connecting member 4 includes a body and a hook 41, the hook 41 is disposed on the body, and the hanging lug 21 on the optical film 2 can be disposed on the middle frame 1 through the hook 41.
This backlight unit's optics diaphragm 2 passes through adapting unit 4 and movably sets up in center 1, through the relative position of adjusting optics diaphragm 2 and center 1, can overcome tolerance accumulation's influence, makes the black shading area of optics diaphragm 2 can adjust to covering LED light source strip 3, avoids taking place the light leak, and simple structure is ingenious.
Optionally, the middle frame 1, the optical film 2, and the LED light source bar 3 are all approximately rectangular structures, the LED light source bar 3 is disposed on any side of the optical film 2, and the optical film 2 can move in a direction perpendicular to the side of the optical film 2 where the LED light source bar 3 is disposed through the connecting component 4, so that the overlapping width of the black shading area of the optical film 2 and the LED light source bar 3 can be adjusted. In this embodiment, LED light source strip 3 is located the bottom of optics diaphragm 2, and 4 sliding connection in center 1 are passed through at the top of optics diaphragm 2, and optics diaphragm 2 can move along backlight unit's relative center 1 of direction of height to adjust the relative position of optics diaphragm 2 and center 1, and then make the black shading area of optics diaphragm 2 cover LED light source strip 3, realize avoiding taking place the effect of light leak.
Specifically, a guide hole 42 is formed in the body of the connecting part 4, the guide hole 42 extends along the width direction of the optical film 2, the connecting part 4 passes through the guide hole 42 through the fixing part 11 to be connected with the middle frame 1, the fixing part 11 is configured to be capable of sliding relatively to the guide hole 42 or locking the connecting part 4, and the guide hole 42 can facilitate the directional movement of the optical film 2 relative to the middle frame 1, so that the position adjustment is more accurate.
More specifically, the fixing member 11 is a step screw, and when it is required to adjust, the step screw is loosened, and the connecting member 4 is moved by a small stroke along the first direction to adjust the relative position between the optical film 2 and the middle frame 1 until it is determined that the black light-shielding area of the optical film 2 covers the LED light source bar 3, and the covering range can be set according to the specific requirements such as the thickness of the LED light source bar 3, for example, the end of the black light-shielding area of the optical film 2 facing the LED light source bar 3 and the LED light source bar 3 have an overlapping width of 0.3mm to 0.8mm, and then the step screw is tightened to lock the connecting member 4 on the middle frame 1, that is, to lock the position state of the optical film 2.
Preferably, a plurality of guide holes 42 are provided in parallel on the body of the connecting member 4 to improve the accuracy and smoothness of the directional movement. In this embodiment, two guide holes 42 are provided in parallel in the body of the connecting member 4, and the guide holes 42 are provided in parallel at both ends of the connecting member 4 in the longitudinal direction of the connecting member 4.
Alternatively, as shown in fig. 3, a groove is concavely formed on one side of the middle frame 1, where the connecting part 4 is arranged, and the groove communicates with the inner side surface of the middle frame 1, and the connecting part 4 is arranged in the groove. The groove is favorable for meeting requirements of ultra-thinning and ultra-narrow edges, and meanwhile, after the hanging lug 21 is hung with the hanging hook 41, the hanging lug 21 of the optical diaphragm 2 interferes with one side of the groove close to the inside of the middle frame 1, so that the flatness of the optical diaphragm 2 can be guaranteed while poor assembly is avoided.
In order to realize stable installation of the optical film 2 and the middle frame 1, a plurality of hanging lugs 21 are arranged on the optical film 2, and each hanging lug 21 is slidably installed on the middle frame 1 through a connecting part 4. The number of the specific hanging lugs 21 and the connecting parts 4 can be set according to actual requirements. In this embodiment, five hanging lugs 21 are arranged at intervals along the length direction of the optical film 2, and correspondingly, five grooves are arranged on the middle frame 1. Preferably, five grooves are uniformly spaced along the length direction of the middle frame 1 to improve the adjustment accuracy, the assembly strength and the reliability.
As shown in fig. 4, in this embodiment, the hook 41 includes a hook main body 411 and a limiting portion 412, one end of the hook main body 411 is connected to the main body of the connecting part 4, and the other end is connected to the limiting portion 412, and a limiting groove is formed between the hook main body 411, the limiting portion 412 and the main body of the connecting part 4. Through the hook structure similar to a barb shape, the optical film 2 can be prevented from warping and falling off, and the assembly reliability is improved. Specifically, the limiting portion 412 protrudes from the hook body 411, and the notch of the limiting groove deviates from the central area of the backlight module, so as to avoid the phenomenon that the hanging lug 21 and the hook 41 are separated when the connecting part 4 drives the optical film 2 to move relative to the middle frame 1. The hook main body 411 and the limiting part 412 are integrally formed, and the hook is convenient to process and manufacture.
Furthermore, the hanging lug 21 is provided with a connecting hole, the optical diaphragm 2 is hung in the limiting groove through the connecting hole, the connecting hole is easy to machine, the hanging operation is more convenient, and the assembling effect is good. In this embodiment, each hanging lug 21 is provided with two connecting holes, and each connecting part 4 is provided with two hooks 41, so that the connecting strength can be ensured, and the processing difficulty can be reduced. In other embodiments, the number of the specific connection holes and the hooks 41 may be set according to actual requirements.
Preferably, the intersection of the side surfaces of the limiting part 412 and the connection between the limiting part 412 and the hook main body 411 are chamfered, so that the optical diaphragm 2 can be prevented from being scratched on one hand, and the optical diaphragm 2 can be conveniently and smoothly assembled on the other hand.
According to the structure, the assembly process of the middle frame 1, the optical diaphragm 2 and the connecting part 4 is as follows: firstly, the connecting part 4 is installed in the groove of the middle frame 1 through a step screw, and it is noted that, in order to ensure that the connecting part 4 is movably arranged on the middle frame 1, the connecting part 4 and the step screw are in a non-screwed state; then, the optical film 2 is hung in the corresponding limiting groove of the hook 41 through the connecting hole of the hanging lug 21, the connecting part 4 is moved along the first direction to adjust the optical film 2 to completely cover the LED light source strip 3, and then the step screw is screwed down, so that the assembly can be completed.
The embodiment further provides a liquid crystal module, which includes the backlight module, and the liquid crystal module can adjust the relative position of the optical film 2 and the middle frame 1 through the backlight module, so as to overcome the influence of tolerance accumulation, and adjust the black shading area of the optical film 2 to cover the LED light source strips 3, thereby avoiding light leakage.
The embodiment further provides a display device, which comprises the liquid crystal module, the display device can avoid light leakage, and the visual effect of the display device is improved.
The above embodiments have been described only the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and is not departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a backlight module, includes center (1), optics diaphragm (2) and LED light source strip (3), optics diaphragm (2) set up in the region that center (1) encloses, LED light source strip (3) set up in center (1) inner wall and be located one side of optics diaphragm (2), its characterized in that still includes:
the connecting part (4) is arranged on the middle frame (1) in a sliding mode along a first direction, the first direction is perpendicular to one side, provided with the LED light source strips (3), of the backlight module, the connecting part (4) comprises hooks (41), and the hanging lugs (21) on the optical membrane (2) can be arranged on the middle frame (1) through the hooks (41).
2. The backlight module according to claim 1, wherein the connecting member (4) is provided with a guide hole (42), the guide hole (42) extends along the first direction, the connecting member (4) is connected to the middle frame (1) through the guide hole (42) by a fixing member (11), and the fixing member (11) is configured to be capable of sliding relative to the guide hole (42) or locking the connecting member (4).
3. A backlight module according to claim 2, characterized in that the connecting member (4) is provided with a plurality of said guide holes (42).
4. The backlight module as claimed in claim 1, wherein the hook (41) comprises a hook main body (411) and a limiting portion (412), one end of the hook main body (411) is connected with the body of the connecting member (4), the other end of the hook main body is connected with the limiting portion (412), and a limiting groove is formed among the hook main body (411), the limiting portion (412) and the body of the connecting member (4).
5. The backlight module as claimed in claim 4, wherein the hanging lug (21) is provided with a connecting hole, and the optical film (2) is hung in the limiting groove through the connecting hole.
6. The backlight module as claimed in claim 4, wherein the intersection of the side surfaces of the position-limiting portion (412) and the connection between the position-limiting portion (412) and the hook main body (411) are chamfered.
7. The backlight module according to any one of claims 1-6, wherein a groove is recessed in a side of the middle frame (1) where the connecting member (4) is disposed, the groove communicates with an inner side surface of the middle frame (1), and the connecting member (4) is disposed in the groove.
8. A backlight module according to claim 7, characterized in that a plurality of said grooves are arranged on the middle frame (1), and each of said grooves is provided with one of said connecting members (4).
9. A liquid crystal module comprising the backlight module according to any one of claims 1 to 8.
10. A display device comprising the liquid crystal module according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020416128.7U CN211956070U (en) | 2020-03-27 | 2020-03-27 | Backlight module, liquid crystal module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020416128.7U CN211956070U (en) | 2020-03-27 | 2020-03-27 | Backlight module, liquid crystal module and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211956070U true CN211956070U (en) | 2020-11-17 |
Family
ID=73186428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020416128.7U Active CN211956070U (en) | 2020-03-27 | 2020-03-27 | Backlight module, liquid crystal module and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211956070U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114609828A (en) * | 2022-04-07 | 2022-06-10 | Tcl华星光电技术有限公司 | Diaphragm fixing structure, backlight module and liquid crystal display device |
-
2020
- 2020-03-27 CN CN202020416128.7U patent/CN211956070U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114609828A (en) * | 2022-04-07 | 2022-06-10 | Tcl华星光电技术有限公司 | Diaphragm fixing structure, backlight module and liquid crystal display device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7868971B2 (en) | Liquid crystal module having a light reflecting sheet with a tab piece inserted through an opening of a frame at an edge portion | |
| US8958023B2 (en) | Liquid crystal module | |
| US20110273631A1 (en) | Lighting device, display device and television receiver | |
| US20160259120A1 (en) | Liquid crystal display device and backlight module thereof | |
| US20180231709A1 (en) | Backlight assembly and display apparatus | |
| WO2006059464A1 (en) | Lamp holder, illumination device for display device, using the lamp holder, display device using the display device, and liquid crystal display device using illumination device for display device | |
| CN101295098A (en) | Back light module unit and LCD device | |
| CN101086584A (en) | Flat light source | |
| CN101545601A (en) | Backlight module | |
| CN211956070U (en) | Backlight module, liquid crystal module and display device | |
| CN105807488A (en) | Backlight module and liquid crystal display device | |
| US8834008B2 (en) | Display module, display device, and liquid crystal television set | |
| CN105717707A (en) | Backlight module and liquid display device | |
| US7929078B2 (en) | Liquid crystal module having a pair of lamp frames with latching leg pieces | |
| CN103975192B (en) | Backlight unit and liquid crystal indicator | |
| US9897853B2 (en) | Backlight module and display device | |
| US20160252778A1 (en) | A backlight module and a display device | |
| WO2017121081A1 (en) | Light guide plate, backlight source and display device | |
| US20110221978A1 (en) | Lighting device, display device and television receiver | |
| EP3422058B1 (en) | Edge-lit backlight unit and display device | |
| CN213659135U (en) | Side-entering type double-sided backlight module | |
| CN112987363B (en) | Display device | |
| CN114038329A (en) | Curved surface display panel and display device | |
| US20110051417A1 (en) | Lamp holder, illumination device, display device, and television receiver apparatus | |
| CN218647266U (en) | Go up iron frame and glue assembly structure, structure and display module assembly of frame in a poor light |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |