CN201348703Y

CN201348703Y - Novel large-size side-lighting liquid crystal display product

Info

Publication number: CN201348703Y
Application number: CNU2009201296233U
Authority: CN
Inventors: 丁仁雄; 彭南山
Original assignee: HKC ELECTRONIC (SHENZHEN) CO Ltd
Current assignee: HKC ELECTRONIC (SHENZHEN) CO Ltd
Priority date: 2009-01-19
Filing date: 2009-01-19
Publication date: 2009-11-18
Anticipated expiration: 2019-01-19

Abstract

The utility model relates to an LCD, in particular to a novel side-lighting large-size liquid crystal display product. The novel side-lighting large-size liquid crystal display product comprises a display middle frame and a back plate, a light guide plate is arranged between the display middle frame and the back plate, LED light bars are distributed on four sides of the light guide plate, the LED light bars are positioned on a light bar support which plays the roles of fixation and heat dissipation, a reflection piece for diffusely reflecting light which is emitted from the light guide plate back to the light guide plate is boned at the bottom part of the back plate, and the light bar support is fixed on the four sides of the light guide plate. The novel side-lighting large-size liquid crystal display product has the beneficial effects that the novel side-lighting large-size liquid crystal display product combines two backlight modes of side lighting and direct lighting, complements each other and overcomes the insufficiencies of the prior art, thereby realizing a side-lighting structure under the large-size backlight. Furthermore, the product is thinner, and the structure is compact. In addition, an original CCFL light source is replaced by an LED light source, and the LED light source is characterized by strong anti-seismic ability, environmental protection, high light color gamut degree and the like.

Description

A kind of novel large scale side-light type liquid crystal display product

Technical field

The utility model relates to a kind of liquid crystal display product, refers more particularly to a kind of novel large scale side-light type liquid crystal display product.

Background technology

Along with development of science and technology, be used for being presented in people's daily life of common occurrence with liquid crystal, LCD promptly is the modal liquid crystal displays of people.A complete liquid crystal display product generally includes shell, liquid crystal display module (being LCM), circuit board compositions such as (comprising mainboard and power panel etc.), wherein LCM is an important component part, be responsible for converting the electrical signal to the picture rich in detail that the user sees, (glass is for being commonly called as in the industry by glass for LCM of the prior art, its English by name OPEN CELL) and composition such as backlight, OPEN CELL is the core parts of entire product, electric signal can be converted into image pixel, but OPENCELL is not the active display element, must be on pixel by an intense light irradiation, could " photograph " go out abundant picture, provide the task of high light to be finished by backlight, it can provide an intensity uniform area light source for OPEN CELL.

The mode backlight of LCM is divided by structure and can be divided into two kinds at present, first kind is side-light type as shown in Figure 1, light source (CCFL) directly or indirectly (through the reflection of fluorescent tube reflex housing) enters the light guide plate propagation from the light guide plate side, after the optical texture design surface and the destruction of reflecting plate via the light guide plate below to total reflection phenomenon, light source is penetrated by the top degree diffusion of light guide plate, is uniformly distributed in the light-emitting zone.Second kind is straight-down negative as shown in Figure 2, and light source (CCFL) directly or indirectly (through the reflection of fluorescent tube reflex housing) enters the propagation of expansion plate from the bottom, spread ejaculation via diffuser plate atomizing and refraction back from the top of diffuser plate, is uniformly distributed in the light-emitting zone.), the side-light type product thickness is thinner, and brightness is lower, generally is applied as display, on the miniscopes such as notebook; Straight-down negative brightness is higher, generally is applied as on the products such as LCD TV, though straight-down negative brightness is higher, can be subjected to structure influence, and thickness can't be accomplished very thin.Simultaneously, industry all is to do light source as CCFL, has shortcomings such as frangible, not environmental protection, photochromic territory district be little.Large-sized monitor thickness backlight is thick in the market, does not meet the trend of modernized product " ultralight thinning " " high definition is highlighted ".

In the weak point aspect the backlight technology, the inventor has designed " a kind of novel side-light type large scale liquid crystal shows product " based on above-mentioned existing LCM.

The utility model content

The utility model at above-mentioned the deficiencies in the prior art technical matters to be solved is: provide a kind of novel liquid crystal in large scale realization side-light type backlight structure to show product.

The technical scheme that its technical matters that solves the utility model adopts is:

A kind of novel side-light type large scale liquid crystal shows product, comprise LCM center and backboard, be provided with light guide plate between described LCM center and the backboard, light guide plate four sides are distributed with LED lamp bar, LED lamp bar is positioned at the lamp bar support that has been used for fixing and thermolysis, the bottom of backboard is pasted with a reflector plate that is used for the light diffuse reflection of penetrating light guide plate is returned light guide plate, four sides of lamp bar support lightguide plate fixing.

Described LED lamp bar comprises a strip pcb board, and the strip pcb board is provided with the LED lamp that parallel connection and tandem compound are arranged.

Along with the development of LED technology news speed, the application of led light source remembers that also news speed enlarges, and the utility model is applied to led light source in the large scale backlight product, so that product reaches lighter, thinner effect, and more environmental protection.Led light source is replaced former CCFL light source.Require the high characteristics of brightness in conjunction with large scale, at the light guide plate four sides LED lamp bar that all distributes.LED lamp bar is arranged on the strip pcb board by parallel connection and tandem compound by the plurality of LEDs lamp.The lamp bar is positioned on the LED lamp bracket, to play function fixing and heat radiation, again with four sides of lamp bracket lightguide plate fixing.

A kind of novel side-light type large scale liquid crystal of the utility model shows that the beneficial effect of product is:

In conjunction with existing side-light type and two kinds of modes backlight of straight-down negative, learn from other's strong points to offset one's weaknesses, overcome existing weak point, to be implemented in large scale realization side-light type backlight structure.And can do product thinner, compact conformation.In addition led light source is replaced former CCFL light source, it is strong that led light source has shock resistance, environmental protection, characteristics such as photochromic territory degree is wide.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is a side-light type schematic diagram backlight;

Fig. 2 is the direct-type backlight schematic diagram;

Fig. 3 is a photo structure utility model backing structure sectional view;

Fig. 4 is the utility model backing structure exploded view.

Description of reference numerals:

1, light guide plate 2, display center 3, lamp bar support

4, LED lamp bar 5, reflector plate 6, backboard

Embodiment

With reference to Fig. 3 to Fig. 4, the utility model is to implement like this:

In Fig. 3 to Fig. 4, a kind of novel side-light type large scale liquid crystal shows product, comprise LCM center (2) and backboard (6), be provided with light guide plate (1) between LCM center (2) and the backboard (6), light guide plate (1) four side is distributed with LED lamp bar (4), LED lamp bar (4) is positioned at the lamp bar support (3) that has been used for fixing and thermolysis, the bottom of backboard (6) is pasted with one and is used for reflector plate (5) that light guide plate (1) is gone back in the light diffuse reflection of penetrating light guide plate (1), four sides of lamp bar support (3) lightguide plate fixing (1).

LED lamp bar (4) comprises a strip pcb board, and the strip pcb board is provided with the LED lamp that parallel connection and tandem compound are arranged.

In the present embodiment, be 32 " the TV backing structure, backboard (6) is opening shape, at the fixing other materials of backboard (6) bottommost; the bottom in backboard (6); attach a reflector plate (5), will penetrate the light diffuse reflection of light guide plate (1) and return light guide plate (1), places light guide plate (1) above the reflector plate (5); at light guide plate (1) four side six the LED lamp bars (4) of arranging; each two up and down, each side one, LED lamp bar (4) uses lamp bar support (3) to be positioned at light guide plate (1) side respectively.

The above, it only is the preferred embodiment that a kind of novel side-light type large scale liquid crystal of the utility model shows product, be not that technical scope of the present utility model is imposed any restrictions, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model above any trickle modification, equivalent variations and modification that embodiment did.

Claims

1, a kind of novel side-light type large-scale LCD display, comprise display center (2) and backboard (6), it is characterized in that: be provided with light guide plate (1) between described display center (2) and the backboard (6), light guide plate (1) four side is distributed with LED lamp bar (4), LED lamp bar (4) is positioned at the lamp bar support (3) that has been used for fixing and thermolysis, the bottom of backboard (6) is pasted with one and is used for reflector plate (5) that light guide plate (1) is gone back in the light diffuse reflection of penetrating light guide plate (1), four sides of lamp bar support (3) lightguide plate fixing (1).

2, a kind of novel side-light type large-scale LCD display according to claim 1 is characterized in that described LED lamp bar (4) comprises a strip pcb board, and the strip pcb board is provided with the LED lamp that parallel connection and tandem compound are arranged.