CN100520529C

CN100520529C - Backlight module structure and backlight module comprising the structure

Info

Publication number: CN100520529C
Application number: CNB2007101400251A
Authority: CN
Inventors: 龙盛杰; 温明镜
Original assignee: AU Optronics Corp
Current assignee: AU Optronics Corp
Priority date: 2007-08-07
Filing date: 2007-08-07
Publication date: 2009-07-29
Anticipated expiration: 2027-08-07
Also published as: CN101101409A

Abstract

The invention provides a backlight module structure and a backlight module including the structure. And the structure comprises a backboard and at least a light source device, where the backboard has a base part and multiple bumps mutually parallel and arranged on the base part at intervals and the bumps and the base part together define at least a socket and the bumps have a first height relative to the base part; the light source can be held in the socket; the light source device comprises a substrate and multiple light sources, where the light sources are arranged on the substrate and have a second height relative to the base part; the first height is greater than the second height. And the invention can raise the workers' efficiency of mounting and maintaining the backlight module and reducing the production cost.

Description

Backlight modular structure and comprise the backlight module of this structure

Technical field

The present invention relates to a kind of backlight modular structure and use the backlight module of this structure, particularly a kind of in order to immobile liquid crystal display (liquid crystal display, the backlight modular structure of light supply apparatus LCD) and use the backlight module of this structure.

Background technology

LCD is to utilize liquid crystal and the display device that develops the full-color display technique that, since its have power saving, radiation low, do not take up space, advantage such as in light weight, and aspect size, have sizable elasticity, therefore digital camera, personal digital assistant (personal digital assistant, PDA) and televisor etc. have the application that can see LCD on the electronic product of display screen.On the other hand, LCD is that with the different of conventional cathode ray tube display device the liquid crystal of LCD itself can't be luminous, so the extra light source of needs could imaging on screen.In general, extra light source just is called backlight module.

Roughly, LCD by backlight module, blooming piece module, liquid crystal panel and colored filter module in regular turn storehouse form, and comprise in the backlight module that a plurality of light supply apparatuses are to provide light source, if be example, have a plurality of light source components (for example light emitting diode (LED)) on each light supply apparatus with the LCD of using a plurality of pointolite elements.After LCD was used a period of time, one of them light source component may damage on light supply apparatus or the light supply apparatus, caused the image display quality of LCD to descend thus, therefore must take out light supply apparatus and repair.

Yet, when repairing traditional LCD package assembly, blooming piece module, liquid crystal panel and colored filter module also need disassemble simultaneously to take out backlight module, behind to be repaired the finishing, again backlight module, blooming piece module, liquid crystal panel and colored filter module are re-assemblied back, can cause the inconvenience of maintenance also can increase manpower simultaneously like this and expend.In addition, in the conventional liquid crystal package assembly, be that the mode with trip is fixed on light supply apparatus on the backboard of backlight module, this makes assembling and maintenance backlight module process more complicated consuming time; And misplace easily during owing to light supply apparatus and trip contraposition, also significantly increased servicing time and cost.

In sum, the design configurations of conventional liquid crystal package assembly is improper, and consequently maintenance and assembling are difficult for, and have increased man-hour and cost.Therefore, how under the package assembly that does not change conventional liquid crystal, make the assembling of backlight liquid crystal display module and its light supply apparatus and dismounting more facility be the target that industry need make great efforts to solve.

Summary of the invention

In view of this, a purpose of the present invention is to provide a kind of backlight module and structure thereof that can be applicable to liquid crystal indicator, with under the package assembly that does not change traditional liquid crystal indicator, improve the assembling and the dismounting mode of backlight module, improve the efficient of staff when assembling and maintenance backlight module.

For achieving the above object, backlight module disclosed in this invention comprises a power supply device and a backlight modular structure.Power supply device is with thinking that backlight modular structure provides a power supply, and backlight modular structure comprises a backboard and at least one light supply apparatus.This backboard has a base portion and a plurality of jut that is parallel to each other in fact, and described jut is arranged at intervals on this base portion, and defines at least one slot jointly with this base portion, and forms one first height with respect to this base portion.Described at least one light supply apparatus comprises a substrate and a plurality of light source, and described light source is arranged on this substrate, and forms one second height with respect to this base portion; Wherein, first highly in fact more than or equal to second height, makes described at least one light supply apparatus can be contained in described at least one slot.

Particularly, a kind of backlight modular structure disclosed by the invention comprises a backboard, have a base portion and a plurality of jut that is parallel to each other in fact, described jut is arranged at intervals on this base portion, and described jut and this base portion define at least one slot jointly and form first height with respect to this base portion; And at least one light supply apparatus, can be contained in described at least one slot, described at least one light supply apparatus has a substrate and a plurality of light source, and described light source is arranged on this substrate and forms second height with respect to this base portion, and wherein this is first highly in fact more than or equal to this second height.

The present invention also discloses a kind of backlight module, and this backlight module comprises as mentioned above a backlight modular structure; And a power supply device, with above-mentioned at least one light supply apparatus electric connection, to light described a plurality of light source.

More specifically, a kind of backlight modular structure provided by the invention, comprise: a backboard, have a base portion and a plurality of jut that is parallel to each other, described jut is arranged at intervals on this base portion, described jut and this base portion define a plurality of slots jointly, and described jut forms first height with respect to this base portion; A plurality of light supply apparatuses, correspondence is contained in described a plurality of slot respectively, each described light supply apparatus has a substrate and a plurality of light source, one end regions of this substrate offers a locating slot, described light source is arranged on this substrate and with respect to this base portion and forms second height, and wherein this first height is more than or equal to this second height; And a location device, be located at least one end of this backboard, so that the substrate orientation of each described light supply apparatus is on this backboard; This locating device has a plurality of keepers, each described keeper has: an elastic, have two opposite end portions, described two an opposite end portions end wherein is an operating side, and this backboard is connected with this keeper by the retaining element between this two opposite ends portion; With a location division, extend to the interior side direction of described substrate the other end of this elastic certainly; After each described light supply apparatus was placed in corresponding slot, this location division was received in this locating slot, and provides an inside jacking force by this elastic, and each described light supply apparatus is positioned in this slot; When each described light supply apparatus will take out from this slot, an inside operating physical force was bestowed in this operating side certainly, this location division is separated in this locating slot and removes the location.Backlight module of the present invention and structure thereof need not dismantled blooming piece module, liquid crystal panel and colored filter module, just can be with light supply apparatus in the mode that extracts by extracting out in the backlight module and putting into, improve the efficient of staff when assembling and maintenance backlight module, reduced production cost.

Behind the embodiment of consulting accompanying drawing and describing subsequently, the technician with the technical field of the invention just can understand purpose of the present invention, feature and advantage, and technological means of the present invention and embodiment.

Description of drawings

Fig. 1 is the schematic perspective view of backlight module of the present invention;

Fig. 2 A is the sectional perspective synoptic diagram of backlight module of the present invention;

Fig. 2 B is the partial enlarged drawing of Fig. 2 A;

Fig. 2 C is the schematic perspective view of the light supply apparatus position fixing process of Fig. 2 A; And

Fig. 3 is the schematic perspective view of another preferred embodiment of the present invention.

Wherein, description of reference numerals is as follows:

1 backlight module, 10 backlight modular structures

100 backboards, 101 light supply apparatuses

102 stop part 102a stop parts

102b stop part 103 locating devices

11 power supply devices, 110 power supply units

111 power leads, 20 base portion

21 jut 21a juts

21b jut 22 slots

30 substrates, 31 light sources

300 opposite side edges, 301 opposite side edges

302 locating slots, 310 first side stop parts

311 second side stop parts, 4 keepers

40 elastic, 41 location divisions

400 operating sides, 401 retaining elements

H1 first height H 2 second height

Embodiment

Fig. 1 is the schematic perspective view of the preferred embodiment of backlight module among the present invention, and this backlight module 1 mainly comprises a backlight modular structure 10 and a power supply device 11.Power supply device 11 has a power supply unit 110 and many power leads 111, and backlight modular structure 10 comprises a backboard 100, a plurality of light supply apparatus 101, a plurality of stop part 102 and a plurality of locating device 103.Wherein, each bar power lead 111 power delivery that power supply unit 110 is provided is to light supply apparatus 101.

Backboard 100 comprises the jut 21 that a base portion 20 and a plurality of (or approximate) in fact are parallel to each other.Wherein, backboard 100 is the structures that are shaped by the one bending that a single-piece plate, jut 21 and base portion 20 constitute.

For convenience of description, see also Fig. 2 A, Fig. 2 A only illustrates the part backlight modular structure.Two

adjacent jut

21a, 21b are arranged at intervals on the base portion 20, and

jut

21a, 21b and base portion 20 can define a slot 22.Stop part 102a and stop part 102b extend with the corresponding slot 22 of

jut

21a, 21b from the end face court of each

jut

21a, 21b, that is extend inwardly, make the definition space of slot 22 more clear and definite.In other words, stop part 102a, the 102b of this embodiment is vertically connected at each

jut

21a, 21b, and is parallel to base portion 20.

Light supply apparatus 101 comprises a substrate 30 and a plurality of light source 31, and described light source 31 is arranged on the substrate 30.In this preferred embodiment, substrate 30 has two

opposite sides edge

300 and 301, and light source 31 just is seated between described two

opposite sides edge

300 and 301, and

opposite side edges

300 and 301 is embedded in the below of

stop part

102a, 102b, substrate 30 can be guided on below

stop part

102a, 102b in the slot 22, place dislocation to avoid substrate 30.In this embodiment, substrate 30 is printed circuit board (PCB)s that electrically connect with light source 31; A plurality of light sources 31 are a plurality of light emitting diodes.The power supply unit of power supply device is by the substrate 30 of power lead 111 power supplies to backlight modular structure 10, with a bright light source 31.Below being preferred embodiment of the present invention for convenience of description for example, is not in order to limit the scope of the invention.

See also Fig. 2 B, it is the partial enlarged drawing of Fig. 2

A.Jut

21a, 21b form first height H 1 with respect to base portion 20, and light source 31 forms second height H 2 with respect to base portion 20, wherein first height H 1 is contained in the slot 22 so that substrate 30 can be guided below

stop part

102a, 102b in fact greater than second height H 2.In other embodiments, first height H 1 also can equal second height H 2, so that substrate 30 just is interspersed in the slot 22.Therefore, just can obtain structure as shown in Figure 1, each jut 21 defines a plurality of slots 22 jointly with base portion 20, holds each light supply apparatus 101 with correspondence.

See also Fig. 2 A, an end regions of substrate 30 offers a locating slot 302, and locating device 103 is located at least one end of backboard 100, and this locating device 103 matches with locating slot 302, is positioned on the backboard 100 with the substrate 30 with light supply apparatus 101.

Locating device 103 comprises a plurality of keepers, for example the keeper 4 among Fig. 2 A.Each keeper 4 has an elastic 40 and a location division 41.Elastic 40 has two opposite end portions, and this two opposite ends portion end wherein is an operating side 400, and backboard 100 is connected with keeper 4 by the retaining element 401 between the described two opposite end portions (a for example latch).Specifically, the retaining element 401 of the center section of the base portion 20 of backboard 100 by being positioned at two opposite end portions and being connected with keeper 4.

Location division 41 own elasticity portions 40 extend to the direction of substrate 30 inboards with respect to the other end of operating side 400.Shown in Fig. 2 A, after light supply apparatus 101 was placed in corresponding slot 22, location division 41 was receivable in the locating slot 302, and provides an inside jacking force by elastic 40, and light supply apparatus 101 is positioned in the slot 22; When light supply apparatus 101 will take out from slot 22,400 bestowed an inside operating physical force from the operating side, and location division 41 self-align grooves 302 are separated and the releasing location, were convenient to thus extract light supply apparatus 101 out from slot 22, shown in Fig. 2 C.The shape of locating slot, locating device and retaining element, position or size are not exceeded with the foregoing description, and those skilled in the art can spread to the mode of other location easily.

The form of stop part disclosed in this invention is the explanation of present embodiment for convenience, is not in order to limiting the scope of the invention, stop part of the present invention also have multiple those skilled in the art to think easily and variation; For example, as shown in Figure 3, another preferred embodiment of the present invention replaces with a plurality of first side stop parts 310 and a plurality of second side stop part 311 respectively with stop part 102a, the 102b that is located at two

jut

21a, 21b in the foregoing description respectively, so also can reach block, avoid substrate 30 to place the effect of skew.

By backlight module disclosed in this invention and structure thereof, under the package assembly that does not change LCD, need not dismantle blooming piece module, liquid crystal panel and colored filter module, just can be with light supply apparatus in the mode that extracts by extracting out in the backlight module and putting into, improve the efficient of staff when assembling and maintenance backlight module, and then reduced production cost.

The foregoing description only is used for illustrating embodiments of the present invention and explaining technical characterictic of the present invention, is not to be used for limiting protection scope of the present invention.Those skilled in the art can unlabored changes or are equal to be provided with and all belong to invention which is intended to be protected.The scope of the present invention should be as the criterion with appending claims.

Claims

1. backlight modular structure comprises:

One backboard has a base portion and a plurality of jut that is parallel to each other, and described jut is arranged at intervals on this base portion, and described jut and this base portion define a plurality of slots jointly, and described jut forms first height with respect to this base portion;

A plurality of light supply apparatuses, correspondence is contained in described a plurality of slot respectively, each described light supply apparatus has a substrate and a plurality of light source, one end regions of this substrate offers a locating slot, described light source is arranged on this substrate and with respect to this base portion and forms second height, and wherein this first height is more than or equal to this second height; And

One locatees device, is located at least one end of this backboard, so that the substrate orientation of each described light supply apparatus is on this backboard; This locating device has a plurality of keepers, and each described keeper has:

One elastic has two opposite end portions, and described two an opposite end portions end wherein is an operating side, and this backboard is connected with this keeper by the retaining element between this two opposite ends portion; With

One location division, extend to the interior side direction of described substrate the other end of this elastic certainly; After each described light supply apparatus was placed in corresponding slot, this location division was received in this locating slot, and provides an inside jacking force by this elastic, and each described light supply apparatus is positioned in this slot; When each described light supply apparatus will take out from this slot, an inside operating physical force was bestowed in this operating side certainly, this location division is separated in this locating slot and removes the location.

2. backlight modular structure as claimed in claim 1 also comprises a plurality of stop parts, and each described stop part extends with the corresponding described slot of each described jut from the end face court of each described jut.

3. backlight modular structure as claimed in claim 2, wherein the substrate of each described light supply apparatus has the two opposite sides edge, described a plurality of light source is located between the edge of described two opposite sides, and described two opposite sides edge is embedded in the below of corresponding stop part, and this substrate is guided in the described slot along the below of described stop part.

4. backlight modular structure as claimed in claim 1, wherein this backboard is the structure by a single-piece plate, described jut and this base portion one bending forming.

5. backlight modular structure as claimed in claim 1, wherein the substrate of each described light supply apparatus is a printed circuit board (PCB), this printed circuit board (PCB) and described a plurality of light source electrically connect.

6. backlight modular structure as claimed in claim 1, wherein each described light source is a light emitting diode.

7. backlight module comprises:

One backlight modular structure as claimed in claim 1; And

One power supply device electrically connects with described a plurality of light supply apparatuses, to light described a plurality of light source.