CN218273008U

CN218273008U - Backlight module for preventing light leakage and liquid crystal display module

Info

Publication number: CN218273008U
Application number: CN202222729656.XU
Authority: CN
Inventors: 王海亚; 赵静; 王静
Original assignee: Jiangsu Yaoshun Information Technology Co ltd
Current assignee: Jiangsu Yaoshun Information Technology Co ltd
Priority date: 2022-10-17
Filing date: 2022-10-17
Publication date: 2023-01-10
Anticipated expiration: 2032-10-17

Abstract

The utility model discloses a prevent backlight module and liquid crystal display module assembly of light leak, which comprises a frame, the both sides surface of frame all is provided with the slot hole, the top in slot hole is provided with the recess, the recess is linked together with the junction in slot hole, the quantity of slot hole and recess is two, two slot hole and recess all are the central axis symmetry setting about the vertical direction of frame, the utility model relates to a liquid crystal display module assembly technical field. This prevent backlight module and liquid crystal display module of light leak, be ultra-thin setting through the light guide plate, light utilization ratio is high, diaphragm light is even, it is effectual to lead the light, can improve backlight module's luminance and the utilization ratio of light, avoid extravagant, upward movement through the annular plate, let the motion pole be located the top of diaphragm, suppress the diaphragm, prevent that the motion pole is located the top of diaphragm, prevent light guide plate upward movement, install the light guide plate, and the procedure of installation is simple swift, can the lifting efficiency.

Description

Backlight module for preventing light leakage and liquid crystal display module

Technical Field

The utility model relates to a liquid crystal display module technical field specifically is a prevent backlight module and liquid crystal display module assembly of light leak.

Background

A Liquid Crystal Display Module is an assembly formed by assembling structural components such as an LCD (Liquid Crystal Display), an IC (integrated Circuit), a polarizer, an FPC (Flexible Printed Circuit), a backlight Module, and the like, and is also called an LCD Module, which is called an LCM (Liquid Crystal Display Module) for short. The backlight module is one of the key components of the liquid crystal display panel. The function of the BackLight is to provide a light source with sufficient brightness and uniform distribution to normally display images, and the BackLight (BackLight) is a light source located behind the liquid crystal display, and its light-emitting effect will directly affect the visual effect of the liquid crystal display module (LCM). The liquid crystal itself does not emit light, it displays graphics or characters as a result of its modulation of light, and the backlight is the light source that provides the LCD panel. Mainly comprises a light source, a light guide plate, an optical film, a plastic frame and the like. The backlight source has the characteristics of high brightness, long service life, uniform light emission and the like. At present, there are three types of backlight sources, i.e., EL, CCFL and LED, which are classified into edge type and direct type (bottom backlight type) according to the distribution position of the light source. As LCD modules continue to develop in brighter, lighter, and thinner directions, edge-lit CCFL backlights become the mainstream of backlight development.

In the prior art, still there are more shortcomings, for example when the equipment, because the laminating of diaphragm and light guide plate is not inseparable for the condition that the light leak appears, and through artifical equipment, the follow-up that needs the equipment is more, can not the raising the efficiency, and later the constitution is accomplished, and the utilization ratio of light is not high, can not improve backlight unit's luminance and the utilization ratio of light.

SUMMERY OF THE UTILITY MODEL

The utility model provides a be not enough to prior art, the utility model provides a prevent backlight module and liquid crystal display module assembly of light leak has solved because diaphragm and the not inseparable of light guide plate laminating for the condition that the light leak appears, and through artifical equipment, the follow-up of needs equipment is more, can not lifting efficiency, later constitutes the completion, and the utilization ratio of light is not high, can not improve backlight module's luminance and the problem of the utilization ratio of light.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a prevent backlight module and liquid crystal display module assembly of light leak, includes the frame, the both sides surface of frame all is provided with the slot hole, the top of slot hole is provided with the recess, the recess is linked together with the junction of slot hole, the quantity of slot hole and recess is two, two slot hole and recess all are the central axis symmetry setting about the vertical direction of frame, the inside of frame is provided with the light guide plate, the light guide plate is ultra-thin setting, and the top of light guide plate is provided with the diaphragm.

The both ends of light guide plate all are provided with the horizontal pole, the one end and the light guide plate fixed connection of horizontal pole to and the one end of horizontal pole extends to the inside of recess, the one end top that the light guide plate was kept away from to the horizontal pole is provided with the closure plate, the top both sides of frame all are provided with the suppression pole, the one end surface of suppression pole is provided with the hole groove to and the front and the back of suppression pole all are provided with the dead lever, dead lever and suppression pole fixed connection, one side of dead lever is provided with the motion pole, the one end and the suppression pole of motion pole contact to and the other end of motion pole extends to the outside of frame, the other end of motion pole is provided with the hang plate, and hang plate and motion pole fixed connection, the bottom outside of frame is provided with the annular slab.

The implementation mode is as follows: be ultra-thin setting through the light guide plate, the light utilization ratio is high, diaphragm light is even, the leaded light is effectual, can improve backlight unit's luminance and the utilization ratio of light, avoid extravagant, and upward movement through the annular plate, let the closure plate be located the top of horizontal pole, and make the suppression pole be located the top of diaphragm, let diaphragm and light guide plate zonulae occludens be in the same place, the condition of light leak has been improved, and upward movement through the annular plate, let the motion pole be located one side of dead lever, also let the motion pole be located the top of diaphragm, suppress the diaphragm once more, prevent that the motion pole is located the top of diaphragm, prevent light guide plate upward movement, install the light guide plate, and the procedure of installation is simple swift, can the raising efficiency.

Preferably, one side of the blocking plate away from the light guide plate is provided with an arc plate, the arc plate is fixedly connected with the blocking plate, and the top of the arc plate is provided with a connecting rod.

Preferably, the cross section of the connecting rod is U-shaped, one end of the connecting rod is fixedly connected with the blocking plate, and the other end of the connecting rod extends into the outer frame.

Preferably, the other end of the connecting rod is movably connected with the outer frame, and the other end of the connecting rod is provided with a connecting spring.

Preferably, the inner wall of the annular plate is provided with concave holes, and the number of the concave holes is equal to that of the connecting rods.

Preferably, a compression spring is arranged between the inclined plate and the outer frame, and the top end and one side surface of the blocking plate are arranged in a collinear manner with the top end and one side surface of the outer frame.

Preferably, the inner walls of the two ends of the annular plate are provided with pushing plates which are arranged in an inclined mode.

Preferably, threaded rods are arranged on two sides of the bottom end of the outer frame, and a round hole is formed in one side of the groove hole.

Preferably, the threaded rod is in threaded connection with the round hole.

Preferably, the liquid crystal display module comprises the backlight module.

Advantageous effects

The utility model provides a prevent backlight module and liquid crystal display module assembly of light leak. Compared with the prior art, the method has the following beneficial effects:

1. this prevent backlight module and liquid crystal display module of light leak, be ultra-thin setting through the light guide plate, light utilization rate is high, diaphragm light is even, it is effectual to lead the light, can improve backlight module's luminance and the utilization ratio of light, avoid extravagant, and upward movement through the annular plate, let the closure plate be located the top of horizontal pole, and make the suppression pole be located the top of diaphragm, let diaphragm and light guide plate zonulae occludens together, the condition of light leak has been improved, and upward movement through the annular plate, let the motion pole be located one side of dead lever, also let the motion pole be located the top of diaphragm, suppress the diaphragm once more, prevent that the motion pole is located the top of diaphragm, prevent the light guide plate upward movement, install the light guide plate, and the procedure of installation is simple swift, can the raising efficiency.

2. This prevent backlight unit and liquid crystal display module of light leak takes place the motion through the threaded rod for the threaded rod merges with the circular hole, can prevent annular plate downstream, improves stability, because there is certain distance between the bottom of slurcam and hang plate, when slurcam upstream, earlier not be in the same place with the hang plate contact, can let earlier the pressure pole be located the higher authority of diaphragm, the subsequent operation of being convenient for.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a top view of the ring plate and the outer frame of the present invention;

FIG. 3 is a side view of the outer frame and the inclined plate of the present invention;

fig. 4 is a perspective view of the blocking plate and the pressing rod of the present invention.

In the figure: 1. an outer frame; 2. a groove hole; 3. a groove; 4. a light guide plate; 5. a membrane; 6. a cross bar; 7. blocking plates; 8. pressing a rod; 9. a hole groove; 10. fixing the rod; 11. a motion bar; 12. an inclined plate; 13. an annular plate; 14. an arc-shaped plate; 15. a connecting rod; 16. a concave hole; 17. a push plate; 18. a threaded rod; 19. A round hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a prevent backlight module and liquid crystal display module assembly of light leak, including frame 1, the both sides surface of frame 1 all is provided with slot 2, let closure plate 7 advance the inside of slot 2, the top of slot 2 is provided with recess 3, recess 3 is linked together with slot 2's junction, make horizontal pole 6 advance the inside of recess 3, because the diameter of horizontal pole 6 equals with recess 3's diameter, can guarantee that horizontal pole 6 advances the inside of recess 3, the quantity of slot 2 and recess 3 is two, two slot 2 and recess 3 all are the central axis symmetry setting about frame 1's vertical direction, the inside of frame 1 is provided with light guide plate 4, light guide plate 4 is ultra-thin setting, the light utilization ratio is high, diaphragm 5 light is even, the leaded light is effectual, can improve backlight module's luminance and the utilization ratio of light, avoid extravagant, and the top of light guide plate 4 is provided with diaphragm 5.

The two ends of the light guide plate 4 are respectively provided with a cross rod 6, one end of the cross rod 6 is fixedly connected with the light guide plate 4, the cross rod 6 and the light guide plate 4 move together, the working efficiency is improved, one end of the cross rod 6 extends into the groove 3, the cross rod 6 is combined with the groove 3, the top of the end, away from the light guide plate 4, of the cross rod 6 is provided with a blocking plate 7, the blocking plate 7 is positioned at the top of the cross rod 6, the cross rod 6 at the bottom is pressed, the two sides of the top end of the outer frame 1 are respectively provided with a pressing rod 8, the pressing rods 8 are positioned at the top of the diaphragm 5, the diaphragm 5 is tightly connected with the light guide plate 4, the light leakage condition is improved, the surface of one end of each pressing rod 8 is provided with a hole groove 9, the hole grooves 9 on the surface of each pressing rod 8 are positioned at the top of the groove 3, the front and the back of each pressing rod 8 are respectively provided with a fixing rod 10, and the fixing rods 10 are fixedly connected with the pressing rods 8, a moving rod 11 is arranged at one side of a fixed rod 10, one end of the moving rod 11 is contacted with a pressing rod 8, the moving rod 11 is moved by the movement of an inclined plate 12, the length of the moving rod 11 extending in an outer frame 1 is increased, so that the moving rod 11 and one side of the fixed rod 10 can prevent the moving rod 11 from being positioned at the top of a membrane 5 and prevent a light guide plate 4 from moving upwards, the other end of the moving rod 11 extends to the outer side of the outer frame 1, the inclined plate 12 is arranged at the other end of the moving rod 11, a certain distance is reserved between a pushing plate 17 and the bottom end of the inclined plate 12, when the pushing plate 17 moves upwards, the pushing plate does not contact with the inclined plate 12, when the pushing plate moves upwards for a certain distance, the inclined plate 12 is contacted with the pushing plate 17, the inclined plate 12 is fixedly connected with the moving rod 11, an annular plate 13 is arranged at the outer side of the bottom end of the outer frame 1, in the moving process of the annular plate 13, a pushing plate 17 fixedly connected with the annular plate 13 moves upwards at the same time, one side, away from the light guide plate 4, of the blocking plate 7 is provided with an arc-shaped plate 14, one end of the arc-shaped plate 14 is an arc-shaped surface which is convenient for pushing the arc-shaped plate 14 to move, the arc-shaped plate 14 is fixedly connected with the blocking plate 7, so that the blocking plate 7 moves along with the arc-shaped plate 14, the working efficiency is improved, the top of the arc-shaped plate 14 is provided with a connecting rod 15, the connecting rod 15 can move through the movement of the blocking plate 7, the connecting rod 15 simultaneously moves towards the middle of the outer frame 1 and compresses a connecting spring inside the outer frame 1, the connecting spring is deformed, the cross section of the connecting rod 15 is U-shaped, one end of the connecting rod 15 is fixedly connected with the blocking plate 7, and the other end of connecting rod 15 extends to the inside of frame 1, let connecting rod 15 take place the motion, make connecting rod 15 show out gradually, the other end and the frame 1 swing joint of connecting rod 15, and the other end of connecting rod 15 is provided with connecting spring, make connecting rod 15 take place to remove, stretch connecting spring, make connecting spring take place to deform, the inner wall of annular plate 13 is provided with cave 16, cave 16 equals with the quantity of connecting rod 15, let connecting rod 15's one end pass through cave 16, make annular plate 13 continue the upward movement, be provided with compression spring between hang plate 12 and the frame 1, the top and a side surface of closure plate 7 all are the collineation setting with the top and a side surface of frame 1, reduce the arch on surface, and convenient to use.

Referring to fig. 1 and 3, the inner walls of the two ends of the annular plate 13 are provided with the pushing plates 17, the pushing plates 17 are arranged in an inclined manner, the pushing plates 17 can be in contact with the inclined plate 12 through upward movement of the pushing plates 17, the inclined plate 12 is pushed to move through continuous upward movement of the pushing plates 17, the two sides of the bottom end of the outer frame 1 are provided with threaded rods 18, one side of the slot 2 is provided with a circular hole 19, the threaded rods 18 and the circular hole 19 are arranged in a vertical collinear manner, subsequent combination is facilitated, the threaded rods 18 are in threaded connection with the circular hole 19, and the annular plate 13 can be prevented from moving downwards through combination of the threaded rods 18 and the circular hole 19.

When the device works, the hole grooves 9 on the surfaces of the pressing rods 8 are positioned at the tops of the grooves 3, the light guide plate 4 is placed in the outer frame 1, the cross rods 6 fixedly connected with the light guide plate 4 enter the inner portion of the outer frame 1 at the same time, the cross rods 6 move downwards along the groove holes 2, the cross rods 6 enter the grooves 3 due to the fact that the groove holes 2 are communicated with the joints of the grooves 3, the cross rods 6 can enter the grooves 3 due to the fact that the diameter of the cross rods 6 is equal to that of the grooves 3, the cross rods 6 are prevented from moving, then the annular plates 13 move upwards, the threaded rods 18 connected with the annular plates 13 move upwards at the same time, in the process that the annular plates 13 move upwards, the annular plates 13 can be firstly contacted with the arc plates 14, and due to the fact that one ends of the arc plates 14 are arc surfaces, the arc plates 14 can be pushed to move towards the middle positions of the outer frame 1 through continuous upward movement of the annular plates 13, the distance between the two arc plates 14 is reduced, the blocking plate 7 fixedly connected with the arc plates 14 gradually enters the groove hole 2, the blocking plate 7 is positioned at the top of the cross rod 6, the cross rod 6 at the bottom is pressed, the upward movement of the cross rod 6 is prevented, the stability of the light guide plate 4 is improved, the long-term use is convenient, the stability is improved, the blocking plate 7 is fixedly connected with one end of the connecting rod 15, the connecting rod 15 can move through the movement of the blocking plate 7, the connecting rod 15 simultaneously moves towards the middle of the outer frame 1, the connecting spring in the outer frame 1 is compressed, the connecting spring is deformed, the blocking plate 7 can automatically enter the groove hole 2, the manual operation is reduced, the working efficiency is improved, and in the moving process of the annular plate 13, the pushing plate 17 fixedly connected with the annular plate 13 simultaneously moves upwards, because there is certain distance between the bottom of pushing plate 17 and inclined plate 12, when pushing plate 17 moves upwards, first with inclined plate 12 contact together, when upwards moving a distance, let inclined plate 12 with pushing plate 17 contact together, and continue upwards moving through pushing plate 17, can promote inclined plate 12 and take place to remove, let the distance between inclined plate 12 and frame 1 reduce, make compression spring take place deformation, and let motion pole 11 take place to move through the removal of inclined plate 12, let the length that motion pole 11 extends in frame 1 increase, make motion pole 11 and the one side that is located dead lever 10, can prevent that motion pole 11 from being located the top of diaphragm 5, prevent light guide plate 4 from upwards moving, install light guide plate 4, and the process of installation is simple and swift, can raise the efficiency, later with threaded rod 18 take place the motion, make threaded rod 18 and round hole 19 merge, can prevent annular plate 13 from downwards moving, improve stability.

And those not described in detail in this specification are well within the skill of those in the art.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a prevent backlight module of light leak, includes frame (1), its characterized in that: the light guide plate is characterized in that groove holes (2) are formed in the surfaces of two sides of the outer frame (1), grooves (3) are formed in the top of each groove hole (2), the grooves (3) are communicated with the joints of the groove holes (2), the number of the groove holes (2) and the number of the grooves (3) are two, the two groove holes (2) and the two grooves (3) are symmetrically arranged around the vertical direction of the outer frame (1) in a central axis manner, the light guide plate (4) is arranged inside the outer frame (1), the light guide plate (4) is ultrathin, and a diaphragm (5) is arranged at the top of the light guide plate (4);

the both ends of light guide plate (4) all are provided with horizontal pole (6), the one end and the light guide plate (4) fixed connection of horizontal pole (6) to and the one end of horizontal pole (6) extend to the inside of recess (3), the one end top of keeping away from light guide plate (4) in horizontal pole (6) is provided with closure plate (7), the top both sides of frame (1) all are provided with suppression pole (8), the one end surface of suppression pole (8) is provided with hole groove (9), and the front and the back of suppression pole (8) all are provided with dead lever (10), dead lever (10) and suppression pole (8) fixed connection, one side of dead lever (10) is provided with motion pole (11), the one end and the suppression pole (8) of motion pole (11) contact to and the other end of motion pole (11) extends to the outside of frame (1), the other end of motion pole (11) is provided with hang plate (12), and hang plate (12) and motion pole (11) fixed connection, the bottom outside of frame (1) is provided with annular plate (13).

2. The backlight module of claim 1, wherein: one side that light guide plate (4) were kept away from in closure plate (7) is provided with arc (14), arc (14) and closure plate (7) fixed connection, the top of arc (14) is provided with connecting rod (15).

3. The backlight module of claim 2, wherein: the cross section of the connecting rod (15) is U-shaped, one end of the connecting rod (15) is fixedly connected with the blocking plate (7), and the other end of the connecting rod (15) extends to the inside of the outer frame (1).

4. The backlight module of claim 2, wherein: the other end of the connecting rod (15) is movably connected with the outer frame (1), and the other end of the connecting rod (15) is provided with a connecting spring.

5. The backlight module of claim 2, wherein: the inner wall of the annular plate (13) is provided with concave holes (16), and the number of the concave holes (16) is equal to that of the connecting rods (15).

6. The backlight module of claim 1, wherein: a compression spring is arranged between the inclined plate (12) and the outer frame (1), and the top end and one side surface of the blocking plate (7) are arranged in a collinear way with the top end and one side surface of the outer frame (1).

7. The backlight module of claim 1, wherein: the inner walls of the two ends of the annular plate (13) are provided with pushing plates (17), and the pushing plates (17) are arranged obliquely.

8. The backlight module of claim 1, wherein: threaded rods (18) are arranged on two sides of the bottom end of the outer frame (1), and a round hole (19) is formed in one side of the groove hole (2).

9. The backlight module of claim 8, wherein: the threaded rod (18) is in threaded connection with the round hole (19).

10. A liquid crystal display module comprising the backlight module of any one of claims 1-9.