CN215599467U

CN215599467U - Ultra-thin high bright straight following formula LED LCD TV structure of being shaded of low-power consumption

Info

Publication number: CN215599467U
Application number: CN202121501622.4U
Authority: CN
Inventors: 巫英亮
Original assignee: Guangdong Asano Technology Co ltd
Current assignee: Guangdong Asano Technology Co ltd
Priority date: 2021-07-02
Filing date: 2021-07-02
Publication date: 2022-01-21
Anticipated expiration: 2031-07-02

Abstract

The utility model belongs to the LCD TV field discloses a high bright straight following formula LED LCD TV structure of being shaded of ultra-thin low-power consumption, arrange liquid crystal glazing, complex film, brightness enhancement film, diffuser plate, lamp strip, reflector plate, backplate in proper order from top to bottom, the complex film of complex film for pressing 93 cutting, the brightness enhancement film is the prism piece according to 3 cutting. The structure can brighten and save energy, and can also avoid the phenomenon of light interference existing in most liquid crystal panels.

Description

Ultra-thin high bright straight following formula LED LCD TV structure of being shaded of low-power consumption

Technical Field

The utility model belongs to the field of liquid crystal televisions, and particularly relates to an ultrathin low-power-consumption high-brightness direct type LED liquid crystal television backlight structure.

Background

The patent ZL201710830957.2 provided by the applicant discloses a direct type LED liquid crystal television backlight structure with low power consumption, which comprises liquid crystal glass, a composite film, light intensifying strips, light strips and reflecting strips, wherein the liquid crystal glass, the composite film, the light intensifying strips, the light strips and the reflecting strips are sequentially arranged from top to bottom, the two light strips are U-shaped light strips with two bent ends, and a V-shaped diffusion plate is arranged between the light intensifying strips and the U-shaped light strips; the reflector plate is a W-shaped reflector plate, and the U-shaped lamp strips are respectively arranged in the concave parts of the corresponding reflector plates and extend along the concave parts. The utility model aims to provide a direct type LED liquid crystal display television backlight structure with uniform brightness and low power consumption.

The V-shaped structure diffuser plate is a V-shaped groove structure designed by the diffuser plate according to the brightening principle of the prism, light emitted by lamp beads can be reflected and refracted for multiple times by the V-shaped structure diffuser plate, a point light source and a line light source are atomized by the V-shaped structure diffuser plate to form a surface light source, and the surface light source is concentrated to the prism sheet and the liquid crystal glass to propagate in the direction, so that the efficiency of light is improved, and the brightening effect is achieved.

The brightness can be maximized by the diaphragm matching framework of the brightness enhancement film and the composite film, but the matching of different types of liquid crystal glass can generate 'water wave' light interference to influence the visual effect.

The technical problem that the present case was solved first is: how to avoid optical interference while achieving low power consumption.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects and shortcomings of the prior art, the utility model provides an ultrathin low-power-consumption high-brightness direct type LED liquid crystal television backlight structure which can brighten and save energy and can avoid the phenomenon of light interference in most liquid crystal panels.

The specific scheme is as follows:

the backlight structure comprises liquid crystal glass, a composite film, a brightness enhancement sheet, a diffusion plate, a light bar, a reflecting sheet and a back plate which are sequentially arranged from top to bottom, wherein the composite film is cut according to 93 degrees, and the brightness enhancement sheet is a prism sheet cut according to 3 degrees.

In the ultrathin low-power-consumption high-brightness direct type LED liquid crystal television backlight structure, the reflector plate is a U-shaped reflector plate with four sides provided with ink silk-screen layers.

In the backlight structure of the ultrathin low-power-consumption high-brightness direct type LED liquid crystal television, 6-10 lamp beads are arranged on the lamp strip, and the size of the liquid crystal glass is 32 inches.

In the backlight structure of the ultrathin low-power-consumption high-brightness direct type LED liquid crystal television, the length of the lamp strip is 585-600mm, the specifications of the lamp beads are 300mA and 3.0V, and the brightness of a single lamp bead reaches more than 130 lumens.

In the ultrathin low-power-consumption high-brightness direct type LED liquid crystal television backlight structure, the ink screen printing layer is a gray black ink screen printing layer.

In the backlight structure of the ultrathin low-power-consumption high-brightness direct type LED liquid crystal television, the diffusion plate is a V-structure diffusion plate, and the surface of the V-structure diffusion plate is provided with a plurality of V-shaped grooves.

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

according to the brightness enhancement principle of the prism sheet, the brightness maximization can be realized by the diaphragm matching framework of the brightness enhancement sheet and the composite film, but the maximum brightness enhancement sheet and the diaphragm matching framework of the composite film can also generate 'water ripple' light interference by matching liquid crystal glass with different models, so that the visual effect is influenced, when the brightness enhancement sheet and the composite film are designed, the brightness enhancement film is cut according to 3 degrees, the composite film is cut according to 93 degrees, the problem of 'water ripple' light interference can be effectively solved, and the cutting die can be shared.

During operation, the light that the lamp strip sent reaches V structure diffuser plate through U type reflector plate to light reflection, then carries out multiple reflection, refraction and the atomizing of light through V structure diffuser plate, makes light turn into even soft area source and to the direction propagation of LCD screen, makes the brilliance increase in the angle of liquid crystal glazing scope through piece and complex film that adds at last, improves spotlight effect, whole the effect that shows the reinforcing of being shaded under the condition of low-power consumption.

The optical interference phenomenon in the brightening process can be solved by optimizing the cutting angle of the composite film and the brightness enhancement sheet.

Drawings

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

FIG. 2 is a top view of a reflector sheet of the present invention;

FIG. 3 is a cross-sectional view of a diffuser plate of the present invention;

fig. 4 is a front view of the present invention.

Detailed Description

The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.

Example 1

Referring to fig. 1 to 4, an ultra-thin low-power high-brightness direct type LED lcd tv backlight structure includes a liquid crystal glass, a composite film, a brightness enhancement film, a diffusion plate, a light bar, a reflective sheet, and a back plate, which are sequentially arranged from top to bottom, wherein the composite film is a composite film cut at 93 degrees, and the brightness enhancement film is a prism sheet cut at 3 degrees.

Specifically, the mechanism is composed of 32-inch liquid crystal glass 1, a composite film 2, a brightness enhancement film 3, a diffusion plate 4, a light bar 5, a reflector 6 and a frame iron back plate 7 which are sequentially arranged from top to bottom; degree complex film 2 be according to the complex film of 93 degrees cutting, brightness enhancement piece 3 is according to the prism piece of 3 degrees cutting, lamp strip 5 is the lamp strip that the specification of single 8 reflection formula lens lamp pearls of taking is 1 watt, diffuser plate 4 is V structure diffuser plate.

The length of the lamp strip is about 590mm, the specification of the lamp beads is 300mA/3.0V, the brightness of a single lamp bead reaches more than 130 lumens, the power P1 of each lamp bead is 0.3A 3.0V 0.9W, the total power P is 0.9W 8W 7.2W, namely, the maximum power consumption of the whole 32-inch backlight is not more than 8.0W, and the lens of the lamp strip is a reflective lens, and the reflective lens is more suitable for being used for a direct-type ultrathin short OD structure.

Further improvement, reflector plate 6 is the U type reflector plate of four-sided tape ink silk screen printing, lamp strip 5 arrange below reflector plate 6 that corresponds, and the lamp pearl exposes along reflector plate 6's trompil, framework iron backboard 7 is the iron backboard of framework height 15 mm.

That is to say, the lcd tv backlight of the 32 inch direct type LED backlight scheme with ultra-thin low power consumption and high brightness realizes uniform light distribution through a single high-efficiency energy-saving LED light bar with reflective lens, a U-structure reflective sheet with four sides printed with ink, a V-structure diffuser plate, two optical films and a frame iron back plate with ultra-thin structure. The reflector plate is designed into a U-shaped structure, the four sides of the reflector plate are provided with gray black ink silk screen printing, the U-shaped structure is U-shaped along the transverse and longitudinal sections of the reflector plate, the U-shaped structure is designed to scatter light to the middle direction, light is more uniform, gray black ink silk screen printing layers 8 are designed on the four sides of the reflector plate and are used for absorbing excessive light and preventing surrounding white return, and meanwhile, the reflector plate is further preferably sprayed with high-reflectivity particles, so that the utilization rate of the light is improved, and the overall brightness, uniformity and visual quality are improved.

The V-shaped diffusion plate is designed into a V-shaped groove structure 9 by utilizing the brightening principle of the prism, the light emitted by the lamp beads can be reflected and refracted for multiple times by the V-shaped diffusion plate, the point light source and the line light source are atomized by the V-shaped diffusion plate to form the surface light source, and the surface light source is concentrated to the prism sheet and the liquid crystal glass to propagate in the direction, so that the light efficiency is improved, and the brightening effect is achieved.

The ultrathin 32-inch direct type LED backlight scheme liquid crystal television with low power consumption and high brightness integrates an ultrathin structure, a single reflection type lens, an efficient and energy-saving LED light bar, a U-shaped structure reflector plate, a V-shaped structure diffuser plate, a 3-degree brightness enhancement plate and an optical diaphragm of a 93-degree composite film, and is constructed to build a 32-inch direct type liquid crystal backlight module, so that the 32-inch direct type liquid crystal backlight module is fewer in backlight lamp beads (only 8 backlight lamp beads are needed), the maximum backlight power consumption is not more than 8 watts, the power of the whole liquid crystal display television is not more than 20 watts, and the light interference is effectively solved; the direct type LED backlight module with ultrathin structure (15mm), high brightness (more than 220 nit) and higher uniformity (the uniformity of 9-point brightness can reach more than 70%) is manufactured at lower cost, so that the LED backlight environment-friendly and energy-saving liquid crystal display television with ultrathin structure, high brightness, good uniformity, low power consumption and low cost is really realized.

The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.

Claims

1. The backlight structure comprises liquid crystal glass, a composite film, a brightness enhancement film, a diffusion plate, a light bar, a reflector plate and a back plate which are sequentially arranged from top to bottom, and is characterized in that the composite film is a composite film cut according to 93 degrees, and the brightness enhancement film is a prism sheet cut according to 3 degrees.

2. The backlight structure of the ultra-thin low-power high-brightness direct type LED liquid crystal television as claimed in claim 1, wherein the reflector plate is a U-shaped reflector plate with four sides provided with ink silk-screen layers.

3. The backlight structure of the ultrathin low-power-consumption high-brightness direct type LED liquid crystal television as claimed in claim 1, wherein 6-10 beads are arranged on the light bar, and the liquid crystal glass is 32 inches.

4. The backlight structure of the ultra-thin low-power high-brightness direct type LED liquid crystal television as claimed in claim 3, wherein the length of the lamp strip is 585-.

5. The ultra-thin low-power-consumption high-brightness direct type LED liquid crystal television backlight structure is characterized in that the ink silk-screen layer is a gray black ink silk-screen layer.

6. The backlight structure of the ultra-thin low-power high-brightness direct type LED liquid crystal television as claimed in claim 1, wherein the diffuser plate is a V-structured diffuser plate, and the V-structured diffuser plate is a diffuser plate with a plurality of V-shaped grooves on the surface.