CN210401949U

CN210401949U - Ultrathin liquid crystal television with DLED backlight source

Info

Publication number: CN210401949U
Application number: CN201921102446.XU
Authority: CN
Inventors: 黄科学
Original assignee: Guangzhou Menpad Technology Co ltd
Current assignee: Guangzhou Menpad Technology Co ltd
Priority date: 2019-07-15
Filing date: 2019-07-15
Publication date: 2020-04-24
Anticipated expiration: 2029-07-15

Abstract

The utility model relates to a liquid crystal display TV technical field discloses an ultra-thin liquid crystal TV with DLED backlight, be in including casing and setting liquid crystal display module and backlight module in the casing, the liquid crystal display module sets up the front of casing, the backlight module sets up the back of liquid crystal display module, the backlight module includes PCB board and DLED lamp pearl, the even setting of DLED lamp pearl is in on the PCB board. The technical scheme of the utility model can improve the luminance of backlight, increase the heat radiating area of lamp plate simultaneously, improve the radiating effect, the cavity is thinner to central point puts printing black punctiform and reduces central luminance reflection light quantity on the reflection diaphragm, has improved the homogeneity of backlight.

Description

Ultrathin liquid crystal television with DLED backlight source

Technical Field

The utility model relates to a LCD TV technical field, in particular to ultra-thin LCD TV with DLED backlight.

Background

The current application modes of the LED light source in the liquid crystal television are as follows: direct type (DLED) and edge type (ELED), direct type LED backlight (DLED): the direct type is that the LED lamps behind the liquid crystal panel are arranged in matrix, so long as the quality of the lamps is good, the initial brightness is not uniform but the uniformity is worse than that of the side lighting, because the light attenuation of the LED is inconsistent, the heat is large, the cost is high, but the direct type backlight is the best backlight, the brightness and the color gamut can be ensured, and the light attenuation is about ten thousands of hours later.

However, the overall cavity of the liquid crystal television adopting the direct type LED backlight source has the disadvantages of thick thickness, 20mm-35mm thickness, low brightness, generally screen brightness of 250 + 300cd/m, poor brightness uniformity of the backlight light source, small heat dissipation and heat conduction area and undesirable heat dissipation effect.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an ultra-thin LCD TV with DLED backlight, the thickness that aims at solving the LCD TV complete machine cavity of present straight following formula LED backlight is very thick, and thickness is 20-35mm, and luminance is low, and general screen brightness is at 250 + 300cd/m, and light source luminance homogeneity is poor in a poor light, and heat dissipation heat conduction area is little, the unsatisfactory technical problem of radiating effect.

In order to achieve the purpose, the utility model provides an ultra-thin LCD TV with DLED backlight, be in including casing and setting liquid crystal display module and backlight module in the casing, the liquid crystal display module sets up the front of casing, the backlight module sets up the back of liquid crystal display module, the backlight module includes PCB board and DLED lamp pearl, the even setting of DLED lamp pearl is in on the PCB board.

Optionally, the PCB board is equipped with two, two the PCB board sets up the concatenation side by side about and forms a rectangle, DLED lamp pearl is the matrix and arranges the setting on the PCB board.

Optionally, the total number of the DLED lamp beads is 112, the number of the DLED lamp beads of each PCB is 56, eight rows of the DLED lamp beads are respectively arranged along the height direction, and the number of the DLED lamp beads of each row is 7.

Optionally, 2835 is adopted for the DLED lamp bead.

Optionally, the bottom of the PCB board is provided with a reflective membrane, and the DLED lamp bead is located above the reflective membrane.

Optionally, the central position of the reflection membrane is provided with a plurality of printed black dots which are uniformly distributed along the circumferential direction.

Optionally, the PCB panel has a size of 507.45mm 541.82mm 1.5 mm.

Optionally, the back and the side of the housing are respectively provided with a plurality of heat dissipation holes.

Optionally, two sides of the bottom of the housing are respectively provided with a support leg.

Optionally, a plurality of sound transmission holes are further arranged below the back of the shell.

Adopt the technical scheme of the utility model, following beneficial effect has: the technical scheme of the utility model, through set up 112 on the aluminum alloy PCB board that sets up side by side about straight following formula backlight module and be 84V600ma 2835 lamp pearls respectively of matrix, the luminance of backlight has been improved, the heat radiating area of lamp plate has been increased simultaneously, the radiating effect has been improved, and central point puts printing black punctiform and reduces central luminance reflection light volume on the reflection diaphragm, the homogeneity of backlight has been improved, make the thickness of LCD TV cavity thinner simultaneously, cavity thickness only is 15 mm.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic front structural view of an ultra-thin lcd tv with a DLED backlight according to an embodiment of the present invention;

fig. 2 is a schematic back structural view of an ultra-thin lcd tv with a DLED backlight according to an embodiment of the present invention;

fig. 3 is a schematic side view of an ultra-thin lcd tv with a DLED backlight according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of an LED backlight of an ultra-thin lcd tv with a DLED backlight according to an embodiment of the present invention.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

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 belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides an ultra-thin LCD TV with DLED backlight.

As shown in fig. 1 to 4, in an embodiment of the present invention, the ultra-thin lcd tv with a DLED backlight source includes a casing 100, and a liquid crystal display module 200 and a backlight module 300 which are disposed in the casing 100, the liquid crystal display module 200 is disposed on the front surface of the casing 100, the backlight module 300 is disposed on the back of the liquid crystal display module 200, the backlight module 300 includes a PCB 301 and a DLED lamp bead 302, and the DLED lamp bead 302 is uniformly disposed on the PCB 301.

Specifically, PCB board 301 is equipped with two, two set up concatenation formation rectangle side by side about PCB board 301, DLED lamp pearl 302 is the matrix and arranges the setting and is in on the PCB board 301.

Specifically, the total number of the DLED lamp beads 302 is 112, the number of the DLED lamp beads 302 of each PCB 301 is 56, eight rows of the DLED lamp beads 302 are respectively arranged along the height direction, and the number of the DLED lamp beads 302 of each row is 7, so that the brightness of the backlight source is improved.

Specifically, the DLED lamp bead 302 adopts a 2835 lamp bead.

Specifically, the bottom of the PCB 301 is provided with a reflective film 400, and the DLED lamp bead 302 is located above the reflective film 400.

Specifically, the central position of the reflective film 400 is provided with a plurality of printed black dots 401 uniformly distributed along the circumferential direction, so that the amount of reflected light with central brightness is reduced, and the uniformity of the backlight source is improved.

Specifically, the size of the PCB 301 is 507.45mm 541.82mm 1.5mm, which increases the heat dissipation area and improves the heat dissipation effect.

Specifically, the back and the side of the housing 100 are respectively provided with a plurality of heat dissipation holes (101,102), which increases the heat dissipation effect.

Specifically, two sides of the bottom of the housing 100 are respectively provided with a support foot 103.

Specifically, a plurality of sound transmission holes 104 are further disposed below the back of the housing 100.

Specifically, the utility model discloses a theory of operation does: set up 112 lamp pearls of 84V600ma 2835 on the aluminum alloy PCB board through splicing the setting side by side about straight following formula backlight module, improved the luminance of backlight, increased the heat radiating area of lamp plate simultaneously, improved the radiating effect, and central point of position printing reduces central luminance reflection light quantity on the reflection diaphragm, improved the homogeneity of backlight, make the thickness of LCD TV cavity thinner simultaneously, cavity thickness only is 15 mm.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims

1. The utility model provides an ultra-thin LCD TV with DLED backlight, its characterized in that, is in including casing and setting liquid crystal display module and backlight module in the casing, the liquid crystal display module sets up the front of casing, the backlight module sets up the back of liquid crystal display module, the backlight module includes PCB board and DLED lamp pearl, the even setting of DLED lamp pearl is in on the PCB board.

2. The ultra-thin LCD TV with the DLED backlight source as claimed in claim 1, wherein the PCB has two pieces, the two pieces are arranged side by side to form a rectangle, and the DLED lamp beads are arranged on the PCB in a matrix arrangement.

3. The ultra-thin liquid crystal television with the DLED backlight source of claim 2, wherein the total number of the DLED lamp beads is 112, the number of the DLED lamp beads of each PCB is 56, eight rows of the DLED lamp beads are respectively arranged along the height direction, and the number of the DLED lamp beads of each row is 7.

4. The ultra-thin LCD TV with DLED backlight of claim 3, wherein, the DLED lamp bead adopts 2835 lamp bead.

5. The ultra-thin LCD TV with a DLED backlight as claimed in claim 1, wherein the bottom of the PCB board is provided with a reflective film, and the DLED lamp bead is located above the reflective film.

6. The ultra-thin lcd tv with a DLED backlight of claim 5, wherein said reflective film has a plurality of printed black dots uniformly distributed in a circumferential direction at a central position thereof.

7. The ultra-thin lcd-tv with a DLED backlight of claim 1, wherein the PCB board has a size of 507.45mm 541.82mm 1.5 mm.

8. The ultra-thin LCD TV with DLED backlight of claim 1, wherein the back and the side of the case are respectively provided with a plurality of heat dissipation holes.

9. The ultra-thin lcd tv with a DLED backlight of claim 1, wherein two sides of the bottom of said housing are respectively provided with a stand bar.

10. The ultra-thin lcd tv with a DLED backlight of claim 1, wherein said housing further has a plurality of sound holes under the back.