CN212060821U

CN212060821U - High bright type liquid crystal concatenation show screen

Info

Publication number: CN212060821U
Application number: CN202021035918.7U
Authority: CN
Inventors: 单金平
Original assignee: Shenzhen Color Display Technology Co ltd
Current assignee: Shenzhen Color Display Technology Co ltd
Priority date: 2020-06-08
Filing date: 2020-06-08
Publication date: 2020-12-01
Anticipated expiration: 2030-06-08

Abstract

The utility model discloses a liquid crystal concatenation show screen of high bright type to improve the utilization ratio to the light that LED sent, improve the luminance of concatenation screen. Specifically, this liquid crystal concatenation show screen includes the concatenation frame and a plurality of liquid crystal module that can dismantle the setting on the concatenation frame. The liquid crystal module comprises an outer frame and a display assembly arranged in the outer frame, wherein the display assembly comprises an outer glass protection plate, a liquid crystal plate, a light guide plate, a refraction plate and a reflection plate which are sequentially stacked. A plurality of LED lamp strips are arranged on the reflector, and a plurality of high-brightness white LED lamp beads are arranged on each LED lamp strip. The position of the refraction plate corresponding to each LED lamp bead is provided with a refraction hole, and the LED lamp bead is positioned in the center of the corresponding refraction hole.

Description

High bright type liquid crystal concatenation show screen

Technical Field

The utility model relates to a liquid crystal display's technical field, in particular to liquid crystal concatenation show screen of high bright type.

Background

The liquid crystal splicing screen is a large-size display device formed by freely splicing a plurality of liquid crystal units, and a user displays multimedia contents, such as video monitoring pictures, live sports, product display, concerts and other video or image picture contents. Because the display picture area of the liquid crystal spliced screen is large, a part of screen connected screens can adopt a high-brightness white light LED array as a backlight source so as to improve the overall display brightness of the spliced screen and ensure that the displayed picture content is clear.

Because the light emitted by the LED is divergent, in order to make the light emitted by the LED face the liquid crystal panel, the LED is generally disposed on the reflector, and the divergent light is reflected to the liquid crystal panel by reflection of the reflector. However, the light emitted by the LED and parallel to the light-reflecting plate cannot be reflected by the light-reflecting plate, which wastes the light, and the utilization rate of the light emitted by the LED cannot be maximized.

SUMMERY OF THE UTILITY MODEL

Problem to prior art existence, the utility model discloses a main objective provides a liquid crystal concatenation show screen of high bright type aims at improving the utilization ratio to the light that LED sent, improves the luminance of concatenation screen.

In order to achieve the above object, the utility model provides a high bright type's liquid crystal concatenation show screen, it includes the concatenation frame and a plurality of can dismantle the setting and be in liquid crystal module on the concatenation frame. The liquid crystal module comprises an outer frame and a display assembly arranged in the outer frame, wherein the display assembly comprises an outer glass protection plate, a liquid crystal plate, a light guide plate, a refraction plate and a reflection plate which are sequentially stacked. The LED lamp is characterized in that a plurality of LED lamp strips are arranged on the reflector, and a plurality of high-brightness white LED lamp beads are arranged on each LED lamp strip. The position of the refraction plate corresponding to each LED lamp bead is provided with a refraction hole, and the LED lamp bead is positioned in the center of the corresponding refraction hole.

Optionally, the aperture of the folded hole gradually increases from bottom to top.

Optionally, the perforations are tapered or arcuate.

Optionally, a metal back plate is disposed on the back surface of the reflector.

Optionally, the metal back plate is fixed on the outer frame through screws.

Optionally, the back of the metal back plate is provided with a plurality of comb-shaped heat dissipation fins.

The technical scheme of the utility model through set up the refraction board between the reflector panel of LCD module and light guide plate to be equipped with the refraction hole that corresponds with LED lamp pearl on the refraction board, the inner wall through the refraction hole refracts the reflector panel with what LED sent in parallel, changes the angle of light, thereby make horizontally light refraction to light guide plate and reflector panel, the light that refracts the reflector panel is reflected the light guide plate by the reflector panel again, from this in order to improve the utilization ratio to LED light energy. Under the unchangeable condition of LED lamp pearl quantity on the reflector panel, can further improve the utilization ratio to LED lamp pearl, improve liquid crystal module's luminance, and then promote the luminance of whole concatenation screen.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of a liquid crystal module according to the present invention;

FIG. 2 is a partial cross-sectional view of a liquid crystal module.

Detailed Description

The technical solutions in the embodiments of the present invention will be described in detail below 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 work belong to the protection scope of the present invention.

The embodiment of the utility model provides a high bright type's liquid crystal concatenation show screen is provided, this high bright type's liquid crystal concatenation show screen includes the concatenation frame and a plurality of can dismantle the liquid crystal module group who sets up on the concatenation frame.

As shown in fig. 1, the liquid crystal module includes a plurality of liquid crystal modules including an outer frame 1 and a display module disposed in the outer frame 1, the display module including an outer glass protective plate 2, a liquid crystal panel 3, a light guide plate 4, a refraction plate 5, and a reflection plate 6, which are sequentially stacked. The reflector 6 is provided with an LED array, the LED array is composed of a plurality of LED lamp strips 61 arranged side by side, and each LED lamp strip 61 is provided with a plurality of high-brightness white LED lamp beads 61a arranged at intervals. The refraction plate 5 is provided with refraction holes 5a corresponding to the positions of the LED lamp beads 61a, and during assembly forming, each LED lamp bead 61a is positioned on the central axis of the corresponding refraction hole 5 a. The aperture of refraction hole 5a increases gradually from bottom to top to make the inner wall of refraction hole 5a incline outwards relative to its central axis, from this, when the horizontal light that LED lamp pearl 61a sent penetrated on the inner wall of refraction hole 5a, light was refracted to reflector panel 6 and light guide plate 4, and light refracted on the reflector panel 6 can be reflected to light guide plate 4 by reflector panel 6.

Compare with the liquid crystal module that current concatenation screen adopted, the utility model discloses a set up refraction board 5 between liquid crystal module's reflector panel 6 and light guide plate 4, and be equipped with the refraction hole 5a that corresponds with LED lamp pearl 61a on refraction board 5, the inner wall through refraction hole 5a refracts being on a parallel with reflector panel 6 that LED sent, change the angle of light, thereby make horizontally light refraction to light guide plate 4 and reflector panel 6, the light of refraction to reflector panel 6 is reflected to light guide plate 4 by reflector panel 6 again, from this in order to improve the utilization ratio to LED light energy. Under the unchangeable condition of LED lamp pearl 61a quantity on reflector panel 6, can further improve the utilization ratio to LED lamp pearl 61a, improve liquid crystal module's luminance, and then promote the luminance of whole concatenation screen.

Alternatively, the refraction hole 5a may be provided in a tapered shape or an arc shape to facilitate manufacturing. In the present embodiment, the refraction hole 5a is provided in a tapered shape.

Optionally, in this embodiment, a metal back plate 7 is disposed on the back surface of the reflector 6. Metal back plate 7 and the laminating of reflector panel 6 to the heat that directly absorbs LED lamp pearl 61a and produce distributes away again, avoids the heat to pile up and influences liquid crystal module's display effect and life.

Optionally, in this embodiment, the back surface of the metal back plate 7 is provided with a plurality of comb-shaped heat dissipation fins 7 a. Therefore, the contact area between the metal back plate 7 and the air is increased, and when cold air flows through the back surface of the metal back plate 7, a large amount of heat can be taken away, so that the heat dissipation performance of the metal back plate 7 is improved.

Optionally, in this embodiment, the metal back plate 7 is fixed to the outer frame 1 by screws, so as to facilitate assembly and disassembly.

The above is only the preferred embodiment of the present invention, not used in the present invention, and any slight modifications, equivalent replacements and improvements made by the technical entity of the present invention to the above embodiments should be included in the protection scope of the technical solution of the present invention.

Claims

1. A high-brightness liquid crystal splicing display screen comprises a splicing frame and a plurality of liquid crystal modules detachably arranged on the splicing frame, and is characterized in that each liquid crystal module comprises an outer frame and a display assembly arranged in the outer frame, and each display assembly comprises an outer glass protection plate, a liquid crystal plate, a light guide plate, a refraction plate and a reflection plate which are sequentially arranged in a laminated manner; a plurality of LED lamp strips are arranged on the reflector, and a plurality of high-brightness white LED lamp beads are arranged on each LED lamp strip; the position of the refraction plate corresponding to each LED lamp bead is provided with a refraction hole, and the LED lamp bead is positioned in the center of the corresponding refraction hole.

2. The tiled display screen of claim 1, wherein the aperture of the perforations gradually increases from bottom to top.

3. The highlighted spliced liquid crystal display screen according to claim 2, wherein the folding holes are conical or arc-shaped.

4. The high brightness type liquid crystal splicing display screen as claimed in claim 1, wherein a metal back plate is arranged on the back surface of the reflector.

5. The high-brightness spliced liquid crystal display screen as claimed in claim 4, wherein the metal back plate is fixed on the outer frame by screws.

6. The high brightness spliced LCD display screen as claimed in claim 4, wherein the back of said metal back plate is provided with a plurality of comb-shaped heat dissipation fins.