CN215576022U

CN215576022U - Ultra-thin LED backlight plate

Info

Publication number: CN215576022U
Application number: CN202121088189.6U
Authority: CN
Inventors: 唐勇; 林启程; 曾剑峰; 余海清; 邱国梁; 谭琪琪; 刘辉煌
Original assignee: Yonglin Electronics Co Ltd
Current assignee: Yonglin Electronics Co Ltd
Priority date: 2021-05-20
Filing date: 2021-05-20
Publication date: 2022-01-18
Anticipated expiration: 2031-05-20

Abstract

The utility model discloses an ultra-thin LED backlight plate, which has the technical scheme key points that: the backlight module is fixedly arranged on the lower surface of the liquid crystal screen, the backlight module is sequentially stacked from top to bottom and provided with an upper diffusion sheet, an upper prism sheet, a lower diffusion sheet, a light guide plate and a reflector plate, light sources are fixedly arranged on the left side surface and the right side surface of the light guide plate, the liquid crystal screen and the backlight module are fixedly arranged in the frame, a plurality of heat dissipation holes are uniformly formed in the bottom of the frame, and heat dissipation silicone grease is fixedly arranged on the lower surface of the reflector plate; the utility model solves the problems of simple structure and poor color display effect of the backlight plate and the problem of poor heat dissipation effect of the backlight plate.

Description

Ultra-thin LED backlight plate

Technical Field

The utility model relates to the technical field of LED backlight plates, in particular to an ultrathin LED backlight plate.

Background

The current backlight mainly comprises three types of EL, CCFL and LED, wherein the LED backlight has the advantages of long service life, low consumption, high brightness, high efficiency and environmental protection, and with the rapid development of LED technology, the LED gradually replaces EL and CCFL light sources to become the mainstream light source for the development of the backlight, and is widely applied to modern scientific and technological products such as liquid crystal television display screens, notebooks, digital cameras, navigators and the like.

Referring to the prior Chinese patent with the publication number of CN207833173U, the utility model discloses an ultra-thin backlight plate without a hem, which comprises a plastic frame and a metal plate body, wherein the plastic frame is arranged at the upper end of the metal plate body, the edges of the left side and the right side on the bottom surface of the metal plate body are respectively provided with a notch, the length of the notch is the same as that of the metal plate body, the left side and the right side of the plastic frame are respectively fixedly provided with an L-shaped fixing plate, the vertical sections of the fixing plates are arranged at the two sides of the plastic frame, the transverse sections extend into the notches, the surface of the transverse sections is respectively provided with more than one arc-shaped block, the top surface inside the notches is respectively provided with more than one arc-shaped groove, the arc-shaped blocks are respectively inserted into the corresponding arc-shaped grooves, and the front end surface and the rear end surface of the two fixing plates are respectively provided with a cover plate. Loosening is avoided.

However, the above-mentioned LED backlight plate still has some disadvantages, such as: the backlight plate has a simple structure and a poor color display effect; the backlight plate has poor heat dissipation effect.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an ultrathin LED backlight plate, aiming at solving the problems of simple structure, poor color display effect and poor heat dissipation effect of the backlight plate in the background technology.

The technical purpose of the utility model is realized by the following technical scheme:

the utility model provides an ultra-thin type LED backlight, includes LCD screen, backlight unit, frame, LCD screen's lower fixed surface is provided with backlight unit, backlight unit stacks in proper order from top to bottom and is provided with diffusion piece, last prism piece, lower prism piece, diffusion piece, light guide plate, reflector plate down, the fixed light source that is provided with on the left and right sides of light guide plate, LCD screen, backlight unit are fixed to be set up the inside of frame, the bottom of frame evenly is provided with a plurality of louvres, the fixed heat dissipation silicone grease that is provided with on the lower surface of reflector plate.

Furthermore, a plurality of image modules are fixedly arranged on the liquid crystal screen, a plurality of dimming modules are fixedly arranged on the upper diffusion sheet and the lower diffusion sheet, and the positions of the plurality of image modules and the positions of the plurality of dimming modules are in one-to-one correspondence.

By adopting the technical scheme, the light can be further processed, and the image quality of the device is improved.

Further, the ribs of the upper prism sheet and the lower prism sheet are perpendicular to each other.

Through adopting above-mentioned technical scheme, reinforcing astigmatic effect promotes the light-emitting rate.

Further, the light source is an LED light source, and a control module is fixedly arranged on the light source.

Through adopting above-mentioned technical scheme, the light source is the LED light source, makes the energy consumption of device lower, and the color is more natural, is provided with control module fixedly on the light source, and control module can make the light source send the light of different colours.

Furthermore, an aluminum foil is fixedly arranged on the side wall inside the frame.

Through adopting above-mentioned technical scheme, can effectively prevent the light source light leak for light distributes more evenly on the light guide plate.

Furthermore, the total thickness of the liquid crystal screen and the backlight module is less than 2 nm.

Through adopting above-mentioned technical scheme, make LED backlight plate thickness thinner on the one hand, the consumption is lower, and the color distribution is more even, and the thinner thickness of on the other hand enables LED backlight plate heat dissipation more fast.

In summary, the utility model mainly has the following beneficial effects:

1. the utility model discloses a, through LCD screen, backlight unit inner structure's setting, the image number module is further handled the light with the module of adjusting luminance, hoisting device's image quality, the ridge line mutually perpendicular of going up prism piece, lower prism piece, reinforcing astigmatism effect promotes the light-emitting rate, and the aluminium foil can effectively prevent the light source light leak, and LCD screen, backlight unit's gross thickness is less than 2nm for the thickness of LED backlight plate is thinner, and the consumption is lower, and the color distributes more evenly.

2. The utility model discloses a, through the radiating effect of the use hoisting device of frame, heat dissipation silicone grease, louvre of aluminum alloy material, the gross thickness through LCD screen, backlight unit is less than 2nm, and the device is thinner, and the radiating effect is stronger.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

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

fig. 2 is a schematic structural diagram of a backlight module.

In the figure: 1. a liquid crystal screen; 2. a backlight module; 3. a frame; 4. an upper diffusion sheet; 5. an upper prism sheet; 6. a lower prism sheet; 7. a lower diffusion sheet; 8. a light guide plate; 9. a reflective sheet; 10. a light source; 11. heat dissipation silicone grease; 12. an image number module; 13. and a dimming module.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clear and fully described, embodiments of the present invention are further described in detail below with reference to the accompanying drawings.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

Referring to fig. 1-2, an ultra-thin LED backlight board comprises a liquid crystal screen 1, a backlight module 2, and a frame 3, wherein the backlight module 2 is fixedly disposed on the lower surface of the liquid crystal screen 1, the backlight module 2 is sequentially stacked from top to bottom and provided with an upper diffusion sheet 4, an upper prism sheet 5, a lower prism sheet 6, a lower diffusion sheet 7, a light guide plate 8, and a reflector sheet 9, light sources 10 are fixedly disposed on the left and right side surfaces of the light guide plate 8, so that light emitted from the light sources 10 can uniformly irradiate the lower light guide plate 8, the liquid crystal screen 1 and the backlight module 2 are fixedly disposed inside the frame 3, the frame 3 is made of aluminum alloy, the frame 3 made of aluminum alloy can prolong the service life of the device, and conduct heat well to the device, a plurality of heat dissipation holes are uniformly disposed at the bottom of the frame 3, the heat dissipation holes are circular, and a heat dissipation silicone grease 11 is fixedly disposed on the lower surface of the reflector sheet 9, the heat dissipation silicone grease 11 has excellent electrical insulation and excellent thermal conductivity, and can effectively dissipate heat of the LED backlight board.

Referring to fig. 1 and 2, a plurality of image modules 12 are fixedly disposed on the liquid crystal screen 1, a plurality of dimming modules 13 are fixedly disposed on the upper diffusion sheet 4 and the lower diffusion sheet 7, and the positions of the plurality of image modules 12 and the plurality of dimming modules 13 are in one-to-one correspondence, so that light can be further processed, and the image quality of the device is improved.

Referring to fig. 1 and 2, the ribs of the upper prism sheet 5 and the lower prism sheet 6 are perpendicular to each other, thereby enhancing the light diffusion effect and increasing the light extraction rate.

Referring to fig. 1 and 2, the light source 10 is an LED light source, which makes the device have lower energy consumption and more natural color, and the light source 10 is fixedly provided with a control module, which makes the light source 10 emit light rays with different colors.

Referring to fig. 1 and 2, the aluminum foil is fixedly disposed on the inner sidewall of the frame 3, so as to effectively prevent light leakage from the light source 10, and thus, the light is more uniformly distributed on the light guide plate 8.

Referring to fig. 1 and 2, the total thickness of the liquid crystal screen 1 and the backlight module 2 is less than 2nm, so that the thickness of the LED backlight is thinner, the power consumption is lower, the color distribution is more uniform, and the heat dissipation of the LED backlight is faster due to the thinner thickness.

When the LED backlight module is used, the light rays are further processed by the liquid crystal screen 1 and the backlight module 2 through the arrangement of the internal structures of the liquid crystal screen 1 and the backlight module 2, the image quality of the LED backlight module is improved, the ridges of the upper prism sheet 5 and the lower prism sheet 6 are vertical to each other, the light scattering effect is enhanced, the light extraction rate is improved, the aluminum foil can effectively prevent the light source 10 from leaking light, and the total thickness of the liquid crystal screen 1 and the backlight module 2 is smaller than 2nm, so that the thickness of the LED backlight module is thinner, the power consumption is lower, and the color distribution is more uniform; the use of frame 3, heat dissipation silicone grease 11, louvre through the aluminum alloy material promotes the radiating effect of device, and the gross thickness through LCD screen 1, backlight unit 2 is less than 2nm, and the device is thinner, and the radiating effect is stronger.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the utility model as defined by the appended claims. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an ultra-thin type LED board in a poor light, includes LCD screen (1), backlight unit (2), frame (3), its characterized in that: the backlight module is characterized in that the backlight module (2) is fixedly arranged on the lower surface of the liquid crystal screen (1), the backlight module (2) is sequentially stacked from top to bottom and provided with an upper diffusion sheet (4), an upper prism sheet (5), a lower prism sheet (6), a lower diffusion sheet (7), a light guide plate (8) and a reflector sheet (9), the left side surface and the right side surface of the light guide plate (8) are fixedly provided with a light source (10), the liquid crystal screen (1) and the backlight module (2) are fixedly arranged in the frame (3), the bottom of the frame (3) is uniformly provided with a plurality of heat dissipation holes, and the lower surface of the reflector sheet (9) is fixedly provided with heat dissipation silicone grease (11).

2. The ultra-thin LED backlight board of claim 1, wherein: the liquid crystal display comprises a liquid crystal screen (1), wherein a plurality of image digital modules (12) are fixedly arranged on the liquid crystal screen (1), a plurality of dimming modules (13) are fixedly arranged on an upper diffusion sheet (4) and a lower diffusion sheet (7), and the positions of the image digital modules (12) and the positions of the dimming modules (13) are in one-to-one correspondence.

3. The ultra-thin LED backlight board of claim 1, wherein: the ribs of the upper prism sheet (5) and the lower prism sheet (6) are vertical to each other.

4. The ultra-thin LED backlight board of claim 1, wherein: the light source (10) is an LED light source, and a control module is fixedly arranged on the light source (10).

5. The ultra-thin LED backlight board of claim 1, wherein: and an aluminum foil is fixedly arranged on the side wall inside the frame (3).

6. The ultra-thin LED backlight board of claim 1, wherein: the total thickness of the liquid crystal screen (1) and the backlight module (2) is less than 2 nm.