High-definition liquid crystal display screen capable of reducing backlight leakage

Abstract

The utility model discloses a high-definition liquid crystal display screen capable of reducing backlight leakage, relates to the technical field of display screens, solves the problems that an existing device is low in leakproofness and inconvenient to disassemble and assemble, and adopts the following scheme that a backlight assembly frame is assembled in a shell. Through the arrangement of the backlight assembly frame and the light-emitting assembly frame, the backlight assembly frame can seal the periphery of light emitted by the lamp tube, meanwhile, the reflecting plate can guarantee that all the light is emitted forwards, the light-emitting assembly frame can seal the rear side of the lamp tube, and the overall sealing performance is improved; the backlight assembly frame is firstly installed on the outer shell through the bolt A and the installation hole, then the limiting sleeve on the shell cover is aligned with the threaded rod on the back plate and locked through the locking nut, then the light-emitting assembly frame is connected to the rear side of the backlight assembly frame in a clamped mode, and finally the outer shell and the shell cover are locked through the screw B. Mounting and dismounting are easy and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of display screens, in particular to a high-definition liquid crystal display screen with reduced backlight leakage. Background Art

[0002] Liquid crystal displays themselves do not have luminous properties and require a backlight module to provide them with light sources. Backlight components can be divided into side-lit and direct-lit types according to their distribution structure. In existing LCD display technology, backlight leakage is a common problem.

[0003] After searching, the application with patent publication number CN218938729U discloses a backlight assembly for a liquid crystal display screen, including a shell and a backlight assembly arranged in the shell. The backlight assembly includes an LED board, a light guide plate, a lower diffuser, a lower light collecting plate, an upper light collecting plate and an upper diffuser. The light guide plate is provided with a triangular oblique groove and a square groove on the side opposite to the LED board, and a lampshade for mixing light from the light source is provided in the square groove. This can reduce the thickness of the backlight module, reduce cost expenditure, and facilitate mass production.

[0004] However, due to the arrangement of the backlight assembly and the light guide plate, the light emitted by the LED board easily leaks out from the side, resulting in low airtightness, which results in low utilization of the light source. The same brightness requires increasing the power and number of LED light sources, which increases the cost of using the device. At the same time, due to the arrangement of the outer shell and the backlight assembly, when the internal components are damaged, it is inconvenient to disassemble and install them.

[0005] Therefore, we propose a high-definition LCD display with reduced backlight leakage. Utility Model Content

[0006] In view of the deficiencies of the prior art, the utility model provides a high-definition liquid crystal display screen with reduced backlight leakage, which solves the problems of low airtightness and inconvenient disassembly and installation of the prior device.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: A high-definition liquid crystal display screen with reduced backlight leakage comprises a housing, the rear side of which is equipped with a housing cover of matching specifications;

[0008] The interior of the housing is equipped with a backlight assembly frame with matching specifications. The interior of the backlight assembly frame is fixedly installed with liquid crystal glass, an upper polarizer, a lower polarizer, a diffuser, and a diffuser plate in order from front to back. The liquid crystal glass is attached to the front side of the housing. The rear side of the backlight assembly frame is equipped with a light-emitting assembly frame with matching specifications through a slot. The front side of the inner wall of the light-emitting assembly frame is equipped with a reflective plate with matching specifications. The front side of the reflective plate is equipped with evenly distributed lamps. The rear side of the light-emitting assembly frame is equipped with a back plate with matching specifications.

[0009] Four groups of mounting holes in opposite positions are provided on the inner wall of the outer shell, four groups of bolts A in opposite positions are fixedly installed on the outer wall of the backlight component frame, and nuts A of matching specifications are installed on the bolts A. The back plate and the light-emitting component frame are connected by screws A, four groups of limiting sleeves in opposite positions are fixedly installed on the front side of the shell cover, four groups of threaded rods in opposite positions are fixedly installed on the rear side of the back plate, and locking nuts of matching specifications are installed on the outer walls of the threaded rods, and the shell cover and the outer shell are connected by screws B.

[0010] Preferably, a brightness enhancement sheet is installed between the lower polarizer and the upper polarizer, so as to improve the brightness of the display screen.

[0011] Preferably, the front side of the reflector is provided with evenly distributed grooves, a fixing block with matching specifications is fixedly installed in the groove, a through hole is provided on the fixing block, a bolt B with matching specifications of the through hole is fixedly installed on the rear side of the lamp tube, and a nut B with matching specifications is assembled on the bolt B, which facilitates the installation and replacement of the lamp tube.

[0012] Preferably, the specification of the lamp tube is larger than that of the groove, and the lamp tube fits the reflective plate, which can improve the leakage resistance of the backlight.

[0013] Preferably, the outer wall of the light emitting component frame is provided with evenly distributed heat dissipation holes located on the rear side of the reflector, so as to dissipate heat from the lamp tube and increase its service life.

[0014] Preferably, washers are assembled on the nut A, nut B and locking nut, which can improve the tightness of the installation.

[0015] 1. A high-definition LCD display with reduced backlight leakage, through the arrangement of a backlight component frame and a light-emitting component frame, the backlight component frame can seal the four sides of the light emitted by the lamp tube, while the reflector can ensure that all light is emitted forward, and the light-emitting component frame can seal the rear side of the lamp tube, thereby improving the overall sealing, preventing backlight leakage, and improving the utilization rate of the light source.

[0016] 2. At the same time, through the setting of the mounting holes and the limit sleeves, first install the backlight component frame on the shell through the bolts A and the mounting holes, then align the limit sleeves on the shell cover with the threaded rods on the back panel and lock them with the locking nuts, then clamp the light-emitting component frame to the rear side of the backlight component frame, and finally lock the shell and the shell cover with screws B. Installation and disassembly are simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2This is a schematic structural diagram of the housing of the utility model;

[0019] Figure 3 This is a schematic structural diagram of the backlight assembly of the present utility model;

[0020] Figure 4 This is a schematic structural diagram of the light-emitting component of the present invention;

[0021] Figure 5 This is a schematic structural diagram of the back panel of the utility model;

[0022] Figure 6 This is a structural diagram of the reflective plate of the utility model.

[0023] In the figure: 1. Outer shell; 2. Shell cover; 3. Backlight assembly frame; 4. Light-emitting assembly frame; 5. Reflector; 6. Lamp tube; 7. Back plate; 8. Diffuser plate; 9. Diffuser; 10. Lower polarizer; 11. Brightness enhancement film; 12. Upper polarizer; 13. Liquid crystal glass; 14. Mounting hole; 15. Bolt A; 16. Nut A; 17. Heat dissipation hole; 18. Screw A; 19. Groove; 20. Fixing block; 21. Bolt B; 22. Nut B; 23. Limit sleeve; 24. Threaded rod; 25. Lock nut; 26. Screw B. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example 1:

[0026] like Figure 1-6 As shown: the interior of the shell 1 is equipped with a backlight component frame 3 of matching specifications, and the interior of the backlight component frame 3 is fixedly installed with liquid crystal glass 13, upper polarizer 12, lower polarizer 10, diffuser 9 and diffuser 8 from front to back. The liquid crystal glass 13 is fitted with the front side of the shell 1, and the back side of the backlight component frame 3 is equipped with a light-emitting component frame 4 of matching specifications through a card slot. The front side of the inner wall of the light-emitting component frame 4 is equipped with a reflector 5 of matching specifications, and the front side of the reflector 5 is equipped with evenly distributed lamps 6. The back side of the light-emitting component frame 4 is equipped with a back panel 7 of matching specifications. Through the setting of the backlight component frame 3 and the light-emitting component frame 4, the backlight component frame 3 can seal the four sides of the light emitted by the lamp 6, and at the same time, the reflector 5 can ensure that all light is emitted forward. The light-emitting component frame 4 can seal the back side of the lamp 6, thereby improving the overall airtightness, preventing backlight leakage, and improving the utilization rate of the light source.

[0027] Example 2:

[0028] like Figure 2-6 As shown: four groups of mounting holes 14 are provided on the inner wall of the housing 1, four groups of bolts A15 are fixedly installed on the outer wall of the backlight assembly frame 3, and nuts A16 of suitable specifications are assembled on the bolts A15. The back plate 7 is connected to the light-emitting assembly frame 4 by screws A18. Four groups of limiting sleeves 23 of suitable positions are fixedly installed on the front side of the shell cover 2, and four groups of threaded rods 24 of suitable positions are fixedly installed on the rear side of the back plate 7. The outer wall of the threaded rod 24 is equipped with nuts of suitable specifications. The shell cover 2 is equipped with a locking nut 25, and the shell 1 is connected to the shell 1 through the screw B26. Through the setting of the mounting hole 14 and the limiting sleeve 23, the backlight component frame 3 is first installed on the shell 1 through the bolt A15 and the mounting hole 14, and then the limiting sleeve 23 on the shell cover 2 is aligned with the threaded rod 24 on the back plate 7, and locked with the locking nut 25, and then the light-emitting component frame 4 is clamped on the rear side of the backlight component frame 3, and finally the shell 1 and the shell cover 2 are locked with the screw B26. The installation and disassembly are simple and convenient.

[0029] Example 3:

[0030] like Figure 2-3 As shown: the front side of the reflector 5 is provided with evenly distributed grooves 19, and a fixing block 20 of matching specifications is fixedly installed in the groove 19. A through hole is provided on the fixing block 20, and a bolt B21 matching the specifications of the through hole is fixedly installed on the rear side of the lamp tube 6, and a nut B22 matching the specifications is assembled on the bolt B21, which facilitates the installation and replacement of the lamp tube 6.

[0031] The working principle and usage process of the present invention are as follows: when the device is required to work, first install the backlight component frame 3 on the shell 1 through the bolt A15 and the mounting hole 14, align the limit sleeve 23 on the shell cover 2 with the threaded rod 24 on the back plate 7, and lock it through the locking nut 25, then clamp the light-emitting component frame 4 on the rear side of the backlight component frame 3, and finally lock the shell 1 and the shell cover 2 through the screw B26. The installation and disassembly are simple and convenient. The backlight component frame 3 can seal the four sides of the light emitted by the lamp tube 6, and the reflector 5 can ensure that all light is emitted to the front. The light-emitting component frame 4 can seal the rear side of the lamp tube 6, thereby improving the overall airtightness, preventing backlight leakage, and improving the utilization rate of the light source.

[0032] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all perspectives, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and range of equivalents of the claims be included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0033] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A high-definition liquid crystal display screen with reduced backlight leakage, comprising a housing (1), wherein the rear side of the housing (1) is equipped with a housing cover (2) of matching specifications; Its characteristics are: The interior of the housing (1) is equipped with a backlight assembly frame (3) of matching specifications. The interior of the backlight assembly frame (3) is fixedly equipped with a liquid crystal glass (13), an upper polarizer (12), a lower polarizer (10), a diffuser (9) and a diffuser (8) in sequence from front to back. The liquid crystal glass (13) is in contact with the front side of the housing (1). The rear side of the backlight assembly frame (3) is equipped with a light-emitting assembly frame (4) of matching specifications through a slot. The front side of the inner wall of the light-emitting assembly frame (4) is equipped with a reflective plate (5) of matching specifications. The front side of the reflective plate (5) is equipped with evenly distributed lamp tubes (6). The rear side of the light-emitting assembly frame (4) is equipped with a back plate (7) of matching specifications. Four groups of mounting holes (14) in opposite positions are provided on the inner wall of the shell (1); four groups of bolts A (15) in opposite positions are fixedly installed on the outer wall of the backlight component frame (3); nuts A (16) of corresponding specifications are assembled on the bolts A (15); the back plate (7) and the light-emitting component frame (4) are connected by screws A (18); four groups of limiting sleeves (23) in opposite positions are fixedly installed on the front side of the shell cover (2); four groups of threaded rods (24) in opposite positions are fixedly installed on the rear side of the back plate (7); locking nuts (25) of corresponding specifications are assembled on the outer walls of the threaded rods (24); and the shell cover (2) and the shell (1) are connected by screws B (26).

2. The high-definition liquid crystal display with reduced backlight leakage according to claim 1, characterized in that: A brightness enhancement sheet (11) is arranged between the lower polarizer (10) and the upper polarizer (12).

3. The high-definition liquid crystal display with reduced backlight leakage according to claim 1, characterized in that: The front side of the reflector (5) is provided with evenly distributed grooves (19), a fixing block (20) of suitable specifications is fixedly installed in the groove (19), a through hole is provided on the fixing block (20), a bolt B (21) of suitable specifications is fixedly installed on the rear side of the lamp tube (6), and a nut B (22) of suitable specifications is assembled on the bolt B (21).

4. The high-definition liquid crystal display with reduced backlight leakage according to claim 1, characterized in that: The specification of the lamp tube (6) is larger than that of the groove (19), and the lamp tube (6) fits in contact with the reflector plate (5).

5. The high-definition liquid crystal display with reduced backlight leakage according to claim 1, characterized in that: The outer wall of the light-emitting component frame (4) is provided with heat dissipation holes (17) which are evenly distributed and located on the rear side of the reflector plate (5).

6. The high-definition liquid crystal display with reduced backlight leakage according to claim 3, characterized in that: Washers are assembled on the nut A (16), nut B (22) and lock nut (25).

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