CN215449823U

CN215449823U - Durable backlight module with controllable light ray angle

Info

Publication number: CN215449823U
Application number: CN202121748793.7U
Authority: CN
Inventors: 匡艳芳; 熊琴; 雷伟群
Original assignee: Shenzhen Ya Bin Electronics Co ltd
Current assignee: Shenzhen Ya Bin Electronics Co ltd
Priority date: 2021-07-29
Filing date: 2021-07-29
Publication date: 2022-01-07
Anticipated expiration: 2031-07-29

Abstract

The utility model discloses a durable backlight module with a controllable light ray angle, which belongs to the technical field of backlight modules and comprises a module bottom frame, wherein a reflecting cover is arranged on one side of the top of the module bottom frame, a light guide plate is arranged on one side of the reflecting cover, a light transmitting pipeline is arranged in the light guide plate, scattering particles are arranged in the light transmitting pipeline, a bidirectional pump is arranged at one end of the outside of the light transmitting pipeline, and a storage device is arranged at the tail end of the bidirectional pump; in the utility model, the light-transmitting pipeline, the scattering particles, the bidirectional pump and the storage are arranged in the light guide plate in the traditional backlight module, so that the scattering particles can be injected into or sucked out of the light guide plate, the light output angle of the light guide plate can be controlled by the scattering property of the scattering particles, and the light of the backlight source can be reasonably distributed in the display.

Description

Durable backlight module with controllable light ray angle

Technical Field

The utility model relates to the technical field of backlight modules, in particular to a durable backlight module with a controllable light ray angle.

Background

The backlight module, also called backlight source, is a light source located at the back of the liquid crystal display, is one of the key components of the liquid crystal display panel, and is to supply sufficient light source with uniform brightness and distribution to make it able to normally display images, its luminous effect will directly affect the visual effect of the liquid crystal display module, the liquid crystal itself does not emit light, and its display graphics or characters are the result of its light modulation.

When the existing backlight module is used, most of light rays emitted by the backlight source cannot be adjusted in angle and brightness, and the backlight module is not favorable for more flexible output of pictures on a display. Therefore, one skilled in the art provides a durable backlight module with controllable light angle to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a durable backlight module with a controllable light angle, so as to solve the problems mentioned in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a controllable durable type backlight unit of light angle, includes the module underframe, module underframe top one side is provided with the bowl, bowl one side is provided with the light guide plate, be provided with the printing opacity pipeline in the light guide plate, be provided with the scattering granule in the printing opacity pipeline, the outside one end of printing opacity pipeline is provided with two-way pump, two-way pump end is provided with the accumulator.

As a still further scheme of the utility model: the reflector with the module underframe passes through bolt fixed mounting, be fixed with the lamp source pipe through the draw-in groove in the reflector, the light guide plate with the module underframe is through the mode installation of card pressure.

As a still further scheme of the utility model: the printing opacity pipeline has three even inlays of group in the light guide plate, the scattering granule is filled in the printing opacity pipeline, the two-way pump with the printing opacity pipeline valve connects, the accumulator with two-way pump output end is pegged graft.

As a still further scheme of the utility model: be provided with the embedded reflector membrane in the module underframe under the light guide plate, the inside one side of module underframe is fixed with the lamp source controller, lamp source controller one side electric connection has the rotating electrode, rotating electrode one end is rotated and is connected with rotatory stay tube, the outside one end of rotatory stay tube has rotating electrical machines through the key-type connection.

As a still further scheme of the utility model: the lamp holder is characterized in that a connecting column is welded to the outer wall of the rotating supporting tube, a separating reflective membrane and a lamp holder are bonded on the connecting column, and the separating reflective membrane and the reflective membrane are installed in a matched mode.

As a still further scheme of the utility model: the module underframe is welded with a plastic frame on the other side wall outside the module underframe, an optical diaphragm group fixed with the plastic frame is arranged right above the light guide plate, and the rotary motor and the bidirectional pump both penetrate through the plastic frame.

Compared with the prior art, the utility model has the beneficial effects that:

1. in the utility model, the light-transmitting pipeline, the scattering particles, the bidirectional pump and the storage are arranged in the light guide plate in the traditional backlight module, so that the scattering particles can be injected into or sucked out of the light guide plate, the light output angle of the light guide plate can be controlled by the scattering property of the scattering particles, and the light of the backlight source can be reasonably distributed in the display;

2. according to the utility model, the rotary supporting tube, the rotary motor, the rotary electrode, the separation reflecting film and the lamp cap are arranged at the bottom of the reflecting film, so that the brightness of the light source can be effectively adjusted on the premise of not interfering the original light of the side-light type backlight module, the side-light type backlight module is favorable for having a higher brightness adjusting range, and the display is brighter.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a bottom frame of the module of the present invention;

FIG. 3 is a front cross-sectional view of the bottom frame and plastic rim of the module of the present invention;

fig. 4 is a left side view of the rotary support tube of the present invention.

In the figure: 1-module bottom frame; 2-a reflector; 3-a light guide plate; 4-lamp source tube; 5-a lamp source controller; 6-plastic frame; 7-a reflective film; 8-an optical film set; 9-separating the reflective membrane; 10-a bi-directional pump; 11-a reservoir; 12-scattering particles; 13-rotating the support tube; 14-a rotating electrode; 15-a rotating electrical machine; 16-a lamp cap; 17-connecting column; 18-light-transmitting duct.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 4, in an embodiment of the present invention, a durable backlight module with a controllable light angle includes a module bottom frame 1, a reflective cover 2 is disposed on one side of a top of the module bottom frame 1, a light guide plate 3 is disposed on one side of the reflective cover 2, a light transmission pipeline 18 is disposed in the light guide plate 3, scattering particles 12 are disposed in the light transmission pipeline 18, a bidirectional pump 10 is disposed at one end of an outer portion of the light transmission pipeline 18, and a storage 11 is disposed at a tail end of the bidirectional pump 10.

The reflecting cover 2 and the module bottom frame 1 are fixedly installed through bolts, a lamp source tube 4 is fixed in the reflecting cover 2 through a clamping groove, the light guide plate 3 and the module bottom frame 1 are installed in a clamping and pressing mode, the inner surface of the reflecting cover 2 is of a matte structure, light can be favorably reflected in the light guide plate 3, the loss rate of the light is reduced, the light guide plate 3 is made of optical materials collected and emitted by a light path, and the light can be changed into a uniform light surface from an original wiring harness by the inner composition structure; the light transmission pipeline 18 has three groups of uniform embedded light guide plates 3, scattering particles 12 are filled in the light transmission pipeline 18, the bidirectional pump 10 is connected with the light transmission pipeline 18 through a valve, the storage 11 is connected with the output end of the bidirectional pump 10 in an inserting mode, the scattering particles 12 are special transparent scattering materials, light can be refracted when passing through, and the bidirectional pump 10 has a pumping function according to different refraction angles of concentration; a reflective film 7 embedded in the module bottom frame 1 is arranged right below the light guide plate 3, a lamp source controller 5 is fixed on one side inside the module bottom frame 1, the lamp source controller 5 is used for providing power for a lamp source tube 4 and a lamp holder 16, the reflective film 7 is made of reflective optical materials, one side of the lamp source controller 5 is electrically connected with a rotating electrode 14, one end of the rotating electrode 14 is rotatably connected with a rotating support tube 13, and one end of the outer part of the rotating support tube 13 is connected with a rotating motor 15 through a key; a connecting column 17 is welded on the outer wall of the rotary supporting tube 13, a separation reflective membrane 9 and a lamp holder 16 are glued on the connecting column 17, the separation reflective membrane 9 and the reflective membrane 7 are the same in structure and material, and only the separation reflective membrane 7 is a movable separation type mounting structure, so that the lamp holder 16 and the separation reflective membrane 9 can be conveniently exchanged in position, and the separation reflective membrane 9 and the reflective membrane 7 are mounted in a matched mode; the module bottom frame 1 is welded with a plastic frame 6 on the other side wall outside, an optical diaphragm group 8 fixed with the plastic frame 6 is arranged right above the light guide plate 3, the rotating motor 15 and the bidirectional pump 10 both penetrate through the plastic frame 6, and the optical diaphragm group 8 is composed of a dispersible tablet and a light collecting tablet.

The working principle of the utility model is as follows: when the device is used specifically, the module bottom frame 1 and the plastic frame 6 fix the device inside a display and are connected into a display control power supply, when a light source tube 4 emits light normally, light enters a light guide plate 3 from a reflector 2, is collected by the light guide plate 3 and is reflected from a reflective film 7, is emitted from the light guide plate 3 in a centralized manner, enters a liquid crystal panel for use after being processed by an optical film group 8, is in a normal uniform light guide mode when no reflective particles exist in the light guide plate 3, when the light angle needs to be adjusted, the bidirectional pump 10 is sequentially opened, scattering particles 12 in a storage 11 are injected into a light transmission pipeline 18 to change the refraction direction of the light, the angle of the light change is determined according to the concentration of the injected scattering particles 12, further, the light of a backlight source is favorably and reasonably distributed in the display, in addition, when the display normally displays, because the light emitted by the light source tube 4 of the side light type structure is in a side direction and only one light source is provided, the light emission efficiency of the light guide plate 3 is low, the display brightness of the display is low, at the moment, the rotating motor 15 works to rotate the rotating support tube 13 by 180 degrees, the separation reflecting film 9 at the top part is separated from the reflecting film 7, the lamp holder 16 at the bottom part is superposed with the position of the original separation reflecting film 9 on the reflecting film 7, the lamp holder 16 is powered and lightened by the rotating electrode 14 from the light source controller 5 to supplement more light for the light guide plate 3, the development brightness of the display is larger, the rotating support tube 13 has a plurality of groups, the set number of the lamp holders 16 is selected to be lightened according to the adjustment requirement, when the lamp holders are not lightened, the separation reflecting film 9 is kept at the top part, the structure of the low light type backlight module is fused into the side light type backlight module, the advantage of small size of the side light type structure can be maintained, and the adjustable range of the brightness can be improved, so that the display of the display is brighter.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a controllable durable type backlight unit of light angle, includes module underframe (1), its characterized in that: the module underframe (1) top one side is provided with bowl (2), bowl (2) one side is provided with light guide plate (3), be provided with printing opacity pipeline (18) in light guide plate (3), be provided with scattering granule (12) in printing opacity pipeline (18), printing opacity pipeline (18) outside one end is provided with two-way pump (10), two-way pump (10) end is provided with accumulator (11).

2. The durable backlight module as claimed in claim 1, wherein: the light guide plate is characterized in that the reflection cover (2) and the module bottom frame (1) are fixedly installed through bolts, a light source tube (4) is fixed in the reflection cover (2) through a clamping groove, and the light guide plate (3) and the module bottom frame (1) are installed in a clamping and pressing mode.

3. The durable backlight module as claimed in claim 2, wherein: the light-transmitting pipeline (18) is provided with three groups of light-transmitting pipelines (18) which are uniformly embedded in the light guide plate (3), the scattering particles (12) are filled in the light-transmitting pipelines (18), the two-way pump (10) is connected with the light-transmitting pipelines (18) through a valve, and the storage device (11) is connected with the output end of the two-way pump (10) in an inserting mode.

4. The durable backlight module as claimed in claim 3, wherein: be provided with the embedded reflective membrane (7) in module underframe (1) under light guide plate (3), module underframe (1) inside one side is fixed with lamp source controller (5), lamp source controller (5) one side electric connection has rotating electrode (14), rotating electrode (14) one end is rotated and is connected with rotatory stay tube (13), rotatory stay tube (13) outside one end has rotating electrical machines (15) through the key-type connection.

5. The durable backlight module as claimed in claim 4, wherein: rotatory stay tube (13) outer wall butt fusion has spliced pole (17), it has separation reflective membrane (9) and lamp holder (16) to glue on spliced pole (17), separation reflective membrane (9) with reflective membrane (7) cooperation installation.

6. The durable backlight module as claimed in claim 5, wherein: the module underframe (1) outside another lateral wall goes up the welding and has plastics frame (6), be provided with directly over light guide plate (3) with the fixed optical film group (8) of plastics frame (6), rotating electrical machines (15) with two-way pump (10) all run through plastics frame (6).