CN202182391U - Backlight source and liquid crystal display panel - Google Patents

Abstract

The utility model discloses a backlight source and a liquid crystal display panel. The backlight source comprises an LED (light-emitting diode) light bar and a light guide plate; under the basis of a traditional backlight source structure, a strip-shaped groove is arranged in the light guide plate, and lattice points are arranged in the groove; an LED light of the LED light bar extends into the groove and is not contacted with the side surface and the bottom surface of the groove; and incident light emitted by the LED light bar is scattered through multiple reflection by the lattice points, so that the incident light is more uniform, thereby effectively relieving and even avoiding the generation of hot spots foundationally. On the basis of adopting the backlight source, the liquid crystal display panel comprises a rubber frame and a panel, wherein the display panel is directly adhered with the rubber frame so as to avoid the defective phenomenon of tilting of a mini-sized light bar.

Description

A kind of backlight and liquid crystal panel

Technical field

The utility model relates to field of liquid crystal display, relates in particular to a kind of backlight and liquid crystal panel.

Background technology

Backlight (BackLight) is to be positioned at LCD (its illumination effect will directly have influence on LCD MODULE (Liquid Crystal Module, LCM) visual effect for Liquid Crystal Display, LCD) behind a kind of light source.LCD itself is not luminous, and its display graphics or character are the results that it is modulated light.

Light emitting diode (Light Emitting Diode; LED) backlight has brightness height, luminous even, performances such as light angle is big, adjustable, high efficiency, low-power consumption, the life-span is long, light and approach, thereby receives application more and more widely, and because the LED lamp is a spot light; Its luminance is the fan-shaped emission; The luminous light intensity in general its bosom is maximum, traditional backlight source structure as shown in Figure 1, the bar shaped base plate left part of LED lamp bar 1 and glue frame 2 adhesion mutually; The bar shaped base plate right part of LED lamp bar 1 and LGP 3 adhesion mutually; The LED lamp of LED lamp bar 1 stretches in the gap in the middle of glue frame 2 and the LGP 3, and this LED lamp directly contacts LGP 3 towards the one side 101 at LGP middle part, and focus (hotspot) inevitably appears in such structure on LED lamp bar 1; Focus is modal bad in the LED-backlit source, and this bad present also large tracts of land is present in input in the product in market.

The utility model content

The utility model embodiment provides a kind of backlight and liquid crystal panel, in order to solve the bad phenomenon that focus causes.

A kind of backlight that the utility model embodiment provides comprises: LED lamp bar and LGP, wherein:

Said LGP surface has strip groove, and the LED lamp of said LED lamp bar stretches in the said groove, and does not contact with the bottom surface with the side of said groove;

Be distributed with a plurality of sites that are used to reflect the light that said LED lamp sends in the said groove;

Link to each other between the bar shaped base plate of said LGP and said LED lamp bar.

A kind of liquid crystal panel that the utility model embodiment provides comprises: the above-mentioned backlight that the utility model embodiment provides, glue frame and display floater;

Said glue frame is positioned at a side of the LGP of said backlight, with said LGP adhesion;

Said display floater is positioned on the LED lamp bar of said backlight, an end and the adhesion of glue frame.

The beneficial effect of the utility model embodiment comprises:

A kind of brand-new backlight that the utility model embodiment provides and use the liquid crystal panel of this backlight; On traditional back light source structure basis, designed the LGP that has strip groove, and a plurality of sites have been set respectively, in the time of the bright dipping of LED lamp bar in bottom surface and two sides of LGP groove; Break up incident light through repeatedly reflecting; Can make that the light that incides LGP is more even, so just effectively on root, alleviate even avoided the generation of focus, and; In the liquid crystal panel that adopts this backlight; Adopt display floater to link to each other with the glue frame, LGP links to each other with the glue frame, LED lamp bar links to each other with LGP, display floater and glue frame and the disjunct mode of lamp bar, also can avoid in the available liquid crystal panel construction, LED lamp bar is the problem of easy perk light leak in use.

Description of drawings

Fig. 1 is the structure chart in traditional backlight source;

One of structural representation of the backlight that Fig. 2 provides for the utility model embodiment;

The stereogram of the LGP that Fig. 3 provides for the utility model embodiment;

The light path sketch map of the back light source structure that Fig. 4 provides for the utility model embodiment;

Two of the structural representation of the backlight that Fig. 5 provides for the utility model embodiment;

Fig. 6 is the structural representation of the liquid crystal panel of the utility model embodiment proposition.

The specific embodiment

Below in conjunction with accompanying drawing, the specific embodiment of the novel backlight that the utility model embodiment is provided and the structure of liquid crystal panel is at length explained.

The new backlight that the utility model embodiment provides improves existing backlight, and is as shown in Figure 2, and this backlight comprises: LED lamp bar 1 and LGP 3, wherein:

Said LGP 3 surfaces have strip groove 4, and the LED lamp of said LED lamp bar 1 stretches in the said groove 4, and do not contact with the bottom surface with the side of said groove 4;

Be distributed with a plurality of sites 5 that are used to reflect the light that said LED lamp sends in the said groove 4;

Link to each other between the bar shaped base plate of said LGP 3 and said LED lamp bar 1.

Preferably, pass through the adhesive tape adhesion between the bar shaped base plate of LGP 3 and LED lamp bar 1.

As shown in Figure 2; Bottom surface 401 in the LGP groove 4, near the side 402 at LGP edge with near a plurality of sites 5 are set respectively on the LGP middle point of one side 403; Preferably, near on the LGP middle point of one side 403 (also being that one side that light that the LED lamp sends can be directly incident on LGP), the setting of site 5 is comparatively sparse in the groove 4; Setting in groove 4 bottom surfaces 401 is comparatively tight, and groove 4 is then more tight than the bottom surface near the setting of the site 5 on the side 402 at LGP edge; Promptly; Said groove 4 near the distribution density of the site on the LGP middle point of one side 403 less than said groove 4 bottom surfaces 401 and near site distribution density on the side 402 at LGP edge, the network point distribution density on said groove 4 bottom surfaces 401 less than said groove 4 near the network point distribution density on the side 402 at LGP edge.From the emergent light of LED lamp towards the LGP middle part; Mainly the groove 4 through LGP 3 reflects the entering LGPs near LGP middle point of one side 403; Repeatedly reflect through the site near on the LGP middle point of one side 403 of groove 4 simultaneously; When the light through repeatedly reflection arrives the bottom surface 401 of groove 4 and during near the side 402 at LGP edge; Can reflect further by bottom surface 401 with near the site on the side 402 at LGP edge again, the purpose of this design of site 5 is to reflect these light more effectively in the LGP groove 4, and the light that makes LGP appear is more even.

Fig. 3 is the schematic perspective view of LGP, as can beappreciated from fig. 3, the correspondence position of each LED lamp on LED lamp bar, the bottom surface of groove 4 and two sides all are distributed with site 5.

Fig. 4 is the light path sketch map of the above-mentioned back light source structure that provides of the utility model embodiment; As can beappreciated from fig. 4; The light of one side 101 outgoing of the LED lamp of LED lamp bar 1 in the middle part of LGP finally has most of light to incide in the LGP 3 through the repeatedly reflection of site 5; Make incident ray broken up to a certain extent, thereby reach the purpose of alleviating even avoiding producing focus.

Preferably, as shown in Figure 5, the bottom surface 102 of LED lamp and can also be pasted with reflector plate 6 near the side 103 at LGP edge, the purpose of pasting reflector plate 6 is further to improve the reflection efficiency of the light of LED lamp emission.

The utility model embodiment also provides a kind of liquid crystal panel that uses above-mentioned backlight, and is as shown in Figure 6, and this liquid crystal panel comprises:

The above-mentioned backlight that the utility model embodiment provides, glue frame 2 and display floater (panel) 7; Wherein:

Said glue frame 2 is positioned at a side of the LGP 3 of backlight, with these LGP 3 adhesions;

Said display floater 7 is positioned on the LED lamp bar 1 of backlight, an end and 2 adhesions of glue frame.

The liquid crystal panel that the utility model embodiment provides; Why adopt display floater 7 and 2 adhesions of glue frame, LGP 3 and 2 adhesions of glue frame, LED lamp bar 1 and LGP 3 adhesions, display floater 7 and glue frame and LED lamp bar 1 NA mode; Be exactly in the structure of available liquid crystal panel; LED lamp bar and display floater 7 adhesions also link to each other with the glue frame that is used for fixing, so simultaneously; Display floater 7 bendings can cause LED lamp bar to be taken up and cause light leak, and the risk that the liquid crystal panel that the utility model embodiment provides can avoid LED lamp bar to be taken up.

A kind of novel backlight that the utility model embodiment provides; On traditional back light source structure, design LGP and had groove, a plurality of sites that have reflection ray to use in the groove, LED lamp bar stretches in the LGP groove but the back light source structure that does not contact with each face of groove; Because the site has been carried out repeatedly reflection to light; Break up incident light, make incident light more even, so just effectively on root, alleviate even avoided the generation of focus.Use the novel liquid crystal panel of above-mentioned backlight; With traditional display floater and adhesion of LED lamp bar; LED lamp bar is different with the situation of glue frame and the adhesion of LGP homogeneous phase; Display floater directly with the adhesion mutually of glue frame, LED lamp bar only with the LGP adhesion, cause the situation of LED lamp bar perk light leak when so just having avoided the display floater bending.

Claims (6)

1. a backlight is characterized in that, comprising: LED lamp bar and LGP, wherein:

Said LGP surface has strip groove, and the LED lamp of said LED lamp bar stretches in the said groove, and does not contact with the bottom surface with the side of said groove;

Be distributed with a plurality of sites that are used to reflect the light that said LED lamp sends in the said groove;

Link to each other between the bar shaped base plate of said LGP and said LED lamp bar.

2. backlight as claimed in claim 1 is characterized in that, passes through the adhesive tape adhesion between the bar shaped base plate of said LGP and LED lamp bar.

3. backlight as claimed in claim 1 is characterized in that, said groove reaches near site distribution density on the side at LGP edge less than said groove floor near the distribution density of the site on the LGP middle point of one side.

4. backlight as claimed in claim 3 is characterized in that, the network point distribution density on the said groove floor less than said groove near the network point distribution density on the side at LGP edge.

5. like each described backlight of claim 1-4, it is characterized in that the bottom surface of said LED lamp and be pasted with reflector plate near the side at LGP edge.

6. a liquid crystal panel is characterized in that, comprising: like each described backlight of claim 1-5, glue frame and display floater;

Said glue frame is positioned at a side of the LGP of said backlight, with said LGP adhesion;

Said display floater is positioned on the LED lamp bar of said backlight, an end and the adhesion of glue frame.

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