CN201487746U

CN201487746U - Light source component of backlight source and backlight module

Info

Publication number: CN201487746U
Application number: CN200920222309XU
Authority: CN
Inventors: 布占场; 尹大根; 崔来友; 马青
Original assignee: Beijing BOE Optoelectronics Technology Co Ltd
Current assignee: BOE Technology Group Co Ltd
Priority date: 2009-08-28
Filing date: 2009-08-28
Publication date: 2010-05-26
Anticipated expiration: 2019-08-28

Abstract

The embodiment of the utility model discloses a light source component of a backlight source, relates to liquid crystal display devices, and is used for simplifying the procedures of replacing LED (light-emitting diode) in the maintenance of a liquid crystal display and reducing maintenance cost. The light source component of the backlight source comprises a lampshade and at least two LEDs fixed in the lampshade, wherein the lampshade comprises a first assembly piece and a second assembly piece; and at least two LEDs are fixed on the inner side of the first assembly piece or the second assembly piece. The embodiment of the utility model further provides a backlight module with the light source component, and a light guide plate of the backlight module is bonded with the first assembly piece through a double faced adhesive tape. The light source component of the backlight source and the backlight module provided by the embodiment of the utility model are suitable for any LED liquid crystal display device.

Description

The light source assembly of backlight and module backlight

Technical field

The utility model relates to liquid crystal indicator, relates in particular to the light source assembly and the module backlight of backlight in a kind of LED LCD.

Background technology

(Liquid Crystal Display, LCD) assembling process of middle liquid crystal display module is the important step in the whole liquid crystal display module manufacturing process to LCD.With reference to shown in Figure 1, in the prior art, the assembling process of LED (Light Emitting Diode, light emitting diode) liquid crystal display module is roughly as follows:

1) a plurality of LED 1 is assembled with lampshade 2, form LED-backlit source lamp group;

2) LED-backlit source lamp group and framed 3 (Mold frame) are fastened;

3) lay reflectance coating 4 (Reflector sheet);

4) assembling LGP 5 (Light Guide Plate, LGP), and LGP snaps onto in the lampshade near the side of LED 1; Owing to an end of LGP 5 need be inserted in the lampshade 2, so the opening of lampshade 2 can not be too little, otherwise LGP 5 can't normally be assembled;

5) assemble the optical module of forming by diffusion sheet, prismatic lens etc. 6;

6) assembling liquid crystal panel 7 (Panel);

7) assembling frame 8 (Bezel).

When stating the assembling process of LED liquid crystal display module in realization, the inventor finds that there are the following problems at least in the prior art:

LED 1 in the backlight lamp group occurs bad and when need change, must be successively with parts removals such as frame 8, liquid crystal panel 7, optical module 6, LGPs 5, until returning to the state shown in Fig. 1 (1), could change bad LED occurring; Yet, in existing LCD, especially in the LCDs of notebook computer, the thickness of LGP 5 is very little and easily break, in removing the process that re-assemblies again, the breakage rate of LGP 5 reaches 50%, has increased the maintenance cost of LCD;

In addition, when the step of carrying out above-mentioned assembling process (4), for the end that can make LGP 5 is inserted in the lampshade 2 smoothly, therefore the opening of lampshade 2 can not be too little, if and the opening of lampshade 2 is too big, can light leakage phenomena take place at place, the slit between LGP 5 and the lampshade 4 (shown in the border circular areas of Fig. 1 (4)) again; The openings of sizes of lampshade 4 is difficult to unified control on technology, all in all, the light leak fraction defective is about 5%.

The utility model content

Embodiment of the present utility model provides a kind of light source assembly and module backlight of backlight, can simplify the flow process of changing LED in the LCD maintenance process, reduces maintenance cost.

For achieving the above object, embodiment of the present utility model adopts following technical scheme:

A kind of light source assembly of backlight, at least two LED that comprise lampshade and be fixed on described lampshade inside; Wherein, described lampshade comprises first sub-assembly and second sub-assembly, and described at least two LED are fixed on the inboard of described first sub-assembly or second sub-assembly.

A kind of module backlight comprises LGP and light source assembly, at least two LED that this light source assembly comprises lampshade and is fixed on described lampshade inside; Wherein, described lampshade comprises second sub-assembly near the back side of first sub-assembly of the exiting surface of described LGP and close described LGP, and described at least two LED are fixed on the inboard of described first sub-assembly or second sub-assembly.

The light source assembly of the backlight that the utility model embodiment provides and module backlight, by lampshade being repacked into removable two sub-assemblies, make when needs carry out the replacing of LED, only need described lampshade is disassembled, just can the LED that be fixed in lampshade inside be changed, take entire aphototropism mould apart the process of refitting again thereby simplified in the prior art, avoided the damage of LGP, reduced the maintenance cost of LCD.

Description of drawings

In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is the assembling process schematic diagram of liquid crystal display module in the prior art;

First structural representation of the light source assembly that Fig. 2 provides for the utility model embodiment one;

Second structural representation of the light source assembly that Fig. 3 provides for the utility model embodiment one;

The 3rd structural representation of the light source assembly that Fig. 4 provides for the utility model embodiment one;

The structural representation of the module backlight that Fig. 5 provides for the utility model embodiment two;

The structural representation of the another kind of implementation of the light source assembly that Fig. 6 provides for the utility model embodiment;

The assembling process schematic diagram of the liquid crystal display module of the light source assembly that adopts the utility model embodiment and provide or module backlight is provided Fig. 7;

Mark among the figure: 1-LED; The 2-lampshade; 3-is framed; The 4-reflectance coating; The 5-LGP; The 6-optical module; The 7-liquid crystal panel; The 8-frame; The 9-adhesive tape; The 10-double faced adhesive tape; First sub-assembly of 21-lampshade; Second sub-assembly of 22-lampshade.

The specific embodiment

Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.

The light source assembly and the module backlight of the backlight that the utility model embodiment is provided below in conjunction with accompanying drawing are described in detail.

Embodiment one:

With reference to Fig. 2, Fig. 3 or shown in Figure 4, the light source assembly of the backlight that the utility model embodiment provides, at least two LED 1 that comprise lampshade and be fixed on described lampshade inside; Wherein, described lampshade comprises first sub-assembly 21 and second sub-assembly 22; And described at least two LED 1 are fixed on the inboard of described second sub-assembly 22.

In the present embodiment, above-mentioned lampshade can have following implementation:

One, as shown in Figure 2, the cross section of second sub-assembly 22 in the light source assembly that present embodiment provides is shape linearly, and LED 1 just is fixed on the end near first sub-assembly 21 of second sub-assembly, 22 inboards; After described first sub-assembly 21 and second sub-assembly 22 fastened, utilize adhesive tape 9 that it is sticked together again, just can be combined into complete lampshade;

Its two, as Fig. 3 or shown in Figure 4, the cross section of second sub-assembly 22 in the light source assembly that present embodiment provides is rectangular in shape, LED 1 just is fixed on the right-angle side of second sub-assembly 22 inboard near corner; After described first sub-assembly 21 and second sub-assembly 22 fastened, utilize adhesive tape 9 that it is sticked together again, just can be combined into complete lampshade;

In the specific implementation process, first sub-assembly of lampshade and the concrete shape of second sub-assembly can adopt but be not limited to above-mentioned dual mode, can also be other shapes certainly; All similar removable lampshades all should belong within the utility model protection domain.

The light source assembly of the backlight that the utility model embodiment provides, by lampshade being repacked into removable two sub-assemblies, make when needs carry out the replacing of LED, only need described lampshade is disassembled, just can the LED that be fixed in lampshade inside be changed, take entire aphototropism mould apart the process of refitting again thereby simplified in the prior art, avoided the damage of LGP, reduced the maintenance cost of LCD.

Embodiment two:

As shown in Figure 5, the module backlight that the utility model embodiment provides comprises LGP 5 and light source assembly, at least two LED 1 that this light source assembly comprises lampshade and is fixed on described lampshade inside; Wherein, described lampshade comprises second sub-assembly 22 near the back side of first sub-assembly 21 of the exiting surface of LGP 5 and close LGP 5, and described at least two LED 1 are fixed on the inboard of described second sub-assembly 22;

In addition, on the contact-making surface of first sub-assembly 21 of the exiting surface of LGP 5 and described lampshade, post double faced adhesive tape 10, first sub-assembly 21 of LGP 5 and lampshade is glued together by double faced adhesive tape 10 like this, thereby prevents that the light that LED 1 produces from spilling from the slit between first sub-assembly 21 of LGP 5 and lampshade.

Identical with the lampshade among the embodiment one, the lampshade that module backlight comprised of present embodiment also can have following implementation:

One, as shown in Figure 2, the cross section of second sub-assembly 22 in the module backlight that present embodiment provides is shape linearly, and LED 1 just is fixed on the end near first sub-assembly 21 of second sub-assembly, 22 inboards; After described first sub-assembly 21 and second sub-assembly 22 fastened, utilize adhesive tape 9 that it is sticked together again, just can be combined into complete lampshade;

Its two, as Fig. 3 or shown in Figure 4, the cross section of second sub-assembly 22 in the module backlight that present embodiment provides is rectangular in shape, LED 1 just is fixed on the right-angle side of second sub-assembly 22 inboard near corner; After described first sub-assembly 21 and second sub-assembly 22 fastened, utilize adhesive tape 9 that it is sticked together again, just can be combined into complete lampshade;

The module backlight of the backlight that the utility model embodiment provides, by lampshade being repacked into removable two sub-assemblies, make when needs carry out the replacing of LED, only need described lampshade is disassembled, just can the LED that be fixed in lampshade inside be changed, take entire aphototropism mould apart the process of refitting again thereby simplified in the prior art, avoided the damage of LGP, reduced the maintenance cost of LCD; And, owing on the contact-making surface between first sub-assembly of the exiting surface of LGP and lampshade, pasted double faced adhesive tape, between the exiting surface of LGP and lampshade, form seamless design, therefore can prevent the generation of light leak effectively, thereby reduce the fraction defective of LCD.

In the above-described embodiments, only this a kind of situation of inboard that LED is arranged on lampshade second sub-assembly is illustrated, but the light source assembly of the backlight that the utility model embodiment provides and module backlight are not limited thereto, in the specific implementation process, LED can also be arranged on the inboard of lampshade first sub-assembly, specifically as shown in Figure 6.

For the light source assembly that adopts the utility model embodiment to provide or the liquid crystal display module of module backlight, owing to its internal structure changes to some extent, so its assembling process also should be adjusted; Particularly, be example with lampshade structure shown in Figure 2, and in conjunction with shown in Figure 7, adopted the light source assembly that the utility model embodiment provides or the liquid crystal display module of module backlight, its assembling process is roughly as follows:

S1, fit together with framed 3 (Mold frame) by first sub-assembly 21 of screw with lampshade;

S2, assembling LGP 5 (LGP) are pasted double faced adhesive tape at the contact-making surface of LGP 5 and first sub-assembly 21 of lampshade (among the figure shown in the border circular areas), thereby are formed seamless adhesion;

S3, lay reflectance coating 4 (Reflector sheet) at the back side of LGP 5;

S4, first sub-assembly 21 and second sub-assembly 22 that is fixed with a plurality of LED 1 of lampshade fastened;

S5, at first sub-assembly 21 of lampshade and the paste outside adhesive tape 9 of second sub-assembly 22, make it be combined to form complete lampshade;

S6～S8, assemble optical module 6, liquid crystal panel 7 (Panel) and frame 8 (Bezel) successively.

The liquid crystal display module that the process said process assembles, because its inner lampshade is made up of removable two sub-assemblies, therefore in the process that LED is changed, need not the LGP in the module backlight to be dismantled also can easily described lampshade be disassembled again, then the LED that is fixed in lampshade inside is changed, thereby simplified in the prior art and entire aphototropism mould to have been taken apart the process of refitting again, avoid the damage of LGP, reduced the maintenance cost of LCD; And, owing on the contact-making surface between first sub-assembly of the exiting surface of LGP and lampshade, pasted double faced adhesive tape, between the exiting surface of LGP and lampshade, form seamless design, therefore can prevent the generation of light leak effectively, thereby reduce the fraction defective of LCD.

The above; it only is the specific embodiment of the present utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claim.

Claims

1. the light source assembly of a backlight, at least two LED that comprise lampshade and be fixed on described lampshade inside, it is characterized in that described lampshade comprises first sub-assembly and second sub-assembly, and described at least two LED are fixed on the inboard of described first sub-assembly or second sub-assembly.

2. light source assembly according to claim 1 is characterized in that the cross section of described second sub-assembly is type linearly.

3. light source assembly according to claim 1 is characterized in that the cross section of described second sub-assembly is rectangular in shape.

4. according to each described light source assembly in the claim 1 to 3, it is characterized in that described first sub-assembly and second sub-assembly fasten the back and be sticked together by adhesive tape.

5. module backlight, comprise LGP and light source assembly, at least two LED that this light source assembly comprises lampshade and is fixed on described lampshade inside, it is characterized in that, described lampshade comprises second sub-assembly near the back side of first sub-assembly of the exiting surface of described LGP and close described LGP, and described at least two LED are fixed on the inboard of described first sub-assembly or second sub-assembly.

6. module backlight according to claim 5 is characterized in that the cross section of described second sub-assembly is shape linearly.

7. module backlight according to claim 5 is characterized in that the cross section of described second sub-assembly is rectangular in shape.

8. according to each described module backlight in the claim 5 to 7, it is characterized in that described first sub-assembly and second sub-assembly fasten the back and be sticked together by adhesive tape.

9. module backlight according to claim 8 is characterized in that, and is bonding by double faced adhesive tape between first sub-assembly of described LGP and described lampshade.