CN1322366C

CN1322366C - Backlight module and its detachable lamp holder

Info

Publication number: CN1322366C
Application number: CNB031589413A
Authority: CN
Inventors: 林晓业; 黄茂源
Original assignee: AU Optronics Corp
Current assignee: AUO Corp
Priority date: 2003-09-12
Filing date: 2003-09-12
Publication date: 2007-06-20
Anticipated expiration: 2023-09-12
Also published as: CN1595258A

Abstract

A backlight module comprises a frame, a light guide plate, at least one drawable lamp holder and at least one lamp tube. The light guide plate is arranged in the sliding groove in the frame. The drawable lamp holder is arranged in the frame and is positioned beside the light guide plate, the drawable lamp holder is provided with a hook hole and a clamp part, the hook hole is arranged on the surface of the drawable lamp holder, and the clamp part is arranged on the drawing direction side of the drawable lamp holder. The lamp tube is arranged in the withdrawable lamp holder.

Description

Backlight module and drawable lamp-socket thereof

Technical field

The present invention relates to a kind of backlight module, particularly relate to a kind of backlight module with drawable lamp-socket.

Background technology

Backlight module is widely used in LCD (LCD) and the scanner, because market scale is big, therefore relevant patent documentation also constantly is suggested.In use, if the fluorescent tube of backlight module damages or burns, just need maintenance to change.The patent of relevant replacing fluorescent tube comprises the U.S. the 5th, 537,296, and its advantage is for can only change fluorescent tube, and other part by being connected needn't be changed together, but shortcoming is to overhaul when changing to need thin portion to disassemble, and workload is bigger.Japanese kokai publication hei 4-104486 and spy open two pieces of patents of flat 4-288526 and have simplified the work of disassembling, and fluorescent tube is to extract replacing by the side of backlight module.

See also Fig. 1 a, Fig. 1 is the three-dimensional exploded view of the backlight module of prior art, for convenience of description for the purpose of, indicate x, y, z direction in the drawings, so that state the relative position of each part.Frame 101, a diffuser plate 102, a light guide plate 103, a reflector plate 104, a frame 105, a backboard 106 and drawable lamp-socket 170 before existing backlight module includes one.Backboard 106 is fixed together with frame 105, forms similar one box that does not have a lid.The contact that in box, overlaps each other of reflector plate 104, light guide plate 013 and diffuser plate 102.Be respectively arranged with a chute 151 at the two ends of frame 105, be used for two drawable lamp-sockets 170 are inserted respectively in the edge of frame 105 by the y direction, make two drawable lamp-sockets 170 lay respectively at the both sides of light guide plate 103.Before frame 101 combine with frame 105, block preceding frame 101 with the grab 152 at frame 105 edges, and reflector plate 104, light guide plate 103, diffuser plate 102 and drawable lamp-socket 170 gripped between former frame 101, backboard 106 and the frame 105.

Shown by Fig. 1 b, it clearly shows the position of chute 151.Thus, can be well understood to the situation that is provided with of drawable lamp-socket 170.Drawable lamp-socket 170 is to contact with the inwall of its side with chute 151, utilizes friction force each other and drawable lamp-socket 170 is tightly fitted among the chute 151.

With reference to Fig. 1 c, it demonstrates the A part enlarged drawing of the drawable lamp-socket 170 of existing backlight module.Drawable lamp-socket 170 has a reflector 172, a lamp holder body 175 and a winding displacement connecting portion 173.Reflector 172 is located at this lamp holder body 175 surfaces.Winding displacement connecting portion 173 is located among this lamp holder body 175.Reflector 172-y direction (the extraction direction of drawable lamp-socket 170) side has a clamp portion 171 in addition, is used for as the point of application when detaching drawable lamp-socket 170.Yet, because fluorescent tube is the assembly of regular loss, therefore after using a period of time, just need to change, clamp portion 171 is after repeatedly changing fluorescent tube, the normal metal fatigue that might cause and rupturing because of to-and-fro movement, and then difficult when causing dismantle next time drawable lamp-socket 170 is detached out.Therefore need a kind of energy to design for the backlight module of repeatedly changing fluorescent tube.

Summary of the invention

The object of the present invention is to provide a kind of backlight module, to improve the shortcoming of above-mentioned prior art.

The object of the present invention is achieved like this, and a kind of backlight module promptly is provided, and comprises a frame, a light guide plate, at least one drawable lamp-socket and at least one fluorescent tube.Light guide plate is located among the interior chute of this frame.Drawable lamp-socket is arranged in this frame and is positioned at by this light guide plate, this drawable lamp-socket has the hole of colluding and a clamp portion, this colludes first side that the z direction of this drawable lamp-socket (light of backlight module penetrates direction) is located in the hole, this side is the light ejaculation direction towards this backlight module, this side is provided with a reflector, this colludes the hole and also is located on this reflector, this clamp portion be located at this drawable lamp-socket-side of y direction (the extraction direction of drawable lamp-socket 170).Fluorescent tube is located among this drawable lamp-socket.

The present invention also provides a kind of drawable lamp-socket, comprising: a lamp holder body, and this lamp holder body forms a groove; One winding displacement connecting portion is located among this groove; One colludes the hole, is located at first side of this drawable lamp-socket; And a reflector, this reflector is located at this side of this drawable lamp-socket, and this side is that the light towards this backlight module penetrates direction, and this colludes the hole and also is located on this reflector.

Use backlight module of the present invention, can utilize and an aid is stretched into this collude in the hole, collude the hole in this and will detach lamp socket and release.After this frame side is stretched out by this clamp portion, again this clamp portion application of force is taken out this and detach lamp socket.So can avoid clamp portion to produce metal fatigue, cause fracture because of to-and-fro movement.So can prolong the serviceable life that this can substitute lamp socket or this backlight module.

Description of drawings

Fig. 1 a is existing backlight modular structure synoptic diagram;

Fig. 1 b is existing backlight modular structure synoptic diagram;

Fig. 1 c is the A part enlarged drawing of existing backlight module;

Fig. 2 a is the structural representation of the embodiment of the invention;

Fig. 2 b is the structural representation of the embodiment of the invention;

Fig. 2 c is the A part enlarged drawing of the embodiment of the invention.

Embodiment

With reference to Fig. 2 a, frame 201, a diffuser plate 202, a light guide plate 203, a reflector plate 204, a frame 205, a backboard 206, drawable lamp-socket 270 and fluorescent tube before embodiments of the invention comprise one.Backboard 206 is fixed together with frame 205, forms similar one box that does not have a lid.The contact that in box, overlaps each other of reflector plate 204, light guide plate 203 and diffuser plate 202.Be respectively arranged with a chute 251 at the two ends of frame 205, be used for inserting two drawable lamp-sockets 270 in the edge of frame 205 respectively by the y direction, make two drawable lamp-sockets 270 lay respectively at the both sides of light guide plate 203, fluorescent tube (not shown) promptly is located among the drawable lamp-socket 270.Before frame 201 combine with frame 205, block preceding frame 201 with the grab 252 at frame 205 edges, and reflector plate 204, light guide plate 203, diffuser plate 202 and drawable lamp-socket 270 gripped between former frame 201, backboard 206 and the frame 205.

Shown by Fig. 2 b, it clearly shows the position of chute 251.Thus, can be well understood to the situation that is provided with of drawable lamp-socket 270.Drawable lamp-socket 270 with its side and chute 251 inwall contact, utilize friction force each other and drawable lamp-socket 270 tightly fitted among the chute 251.

With reference to Fig. 2 c, the A part enlarged drawing among its displayed map 2a.Drawable lamp-socket 270 of the present invention has a reflector 272, a lamp holder body 275 and a winding displacement connecting portion 273.Lamp holder body 275 forms a groove 276 to accommodate this fluorescent tube.Winding displacement connecting portion 273 is located among this groove 276, in order to be connected with this fluorescent tube and a winding displacement (not shown).Reflector 272 is located at this lamp holder body 275 surfaces.Reflector surface on one first side of drawable lamp-socket 270 (towards the light emitting side of this backlight module) has the hole of colluding 274, reflector-y direction (the extraction direction of drawable lamp-socket 170) side (second side) has a clamp portion 271 in addition.Collude hole 274 and clamp portion 271 is used for as the point of application when detaching drawable lamp-socket 270.

Because after current frame 201 dismountings, first side of drawable lamp-socket will expose out.Therefore can utilize aid to stretch into this and collude in the hole 274, will detach lamp socket 270 and release.

Use backlight module of the present invention, can utilize and an aid is stretched into this collude in the hole 274, will detach lamp socket 270 and release.After these frame 205 sides are stretched out by this clamp portion 271, again these clamp portion 271 application of forces are taken out this and detach lamp socket 270.So can avoid clamp portion 271 because of to-and-fro movement produces metal fatigue, cause fracture.Thereby can prolong the serviceable life that this can substitute lamp socket 271 or this backlight module.

Of the present inventionly collude hole design, be not limited on this first side that is arranged on this drawable lamp-socket, it also can be arranged on the reflector surface of one the 3rd side of this drawable lamp-socket, and the reverse direction of direction is penetrated in the 3rd side towards the light of this backlight module; Maybe can be arranged on the reflector surface of one the 4th side of this drawable lamp-socket, the 4th side is positioned at this light guide plate side dorsad of this drawable lamp-socket.To cooperate various backlight module design.

Though disclosed the present invention in conjunction with above preferred embodiment; yet it is not in order to limit the present invention; any those of ordinary skill in the art without departing from the spirit and scope of the present invention; still can do some and change and retouching, so protection scope of the present invention is just with being as the criterion that claim was defined.

Claims

1. A backlight module, comprising:

a border;

a light guide plate disposed within the frame; and

At least one detachable lamp holder is arranged in the frame and is located beside the light guide plate. The detachable lamp holder has a hook hole provided on the first side of the detachable lamp holder, and the side is facing the In the light emitting direction of the backlight module, a reflector is arranged on the side, and the hook hole is also arranged on the reflector; and

At least one lamp tube is arranged in the detachable lamp holder.

2. The backlight module as claimed in claim 1, wherein the detachable lamp holder further comprises a second side, facing the pulling out direction of the detachable lamp holder, and the second side has a clamp portion, which is disposed on the detachable lamp holder. on the second side.

3 . The backlight module as claimed in claim 1 , wherein the detachable lamp holder further comprises a wire connecting portion disposed on a side of the detachable lamp holder facing the light guide plate. 4 .

4. The backlight module as claimed in claim 1, further comprising a reflective sheet disposed in the frame and overlapped with the light guide plate.

5. The backlight module as claimed in claim 4, further comprising a diffuser plate disposed in the frame and overlapped on the other side of the light guide plate relative to the reflective sheet.

6 . The backlight module as claimed in claim 1 , wherein the frame comprises a slide slot disposed on two sides of the frame for inserting the detachable lamp holder into the frame.

7. A detachable lamp holder, comprising:

a lamp holder body forming a groove;

A row of wire connecting parts is arranged in the groove;

a hook hole provided on the first side of the detachable lamp holder; and

A reflector, the reflector is arranged on the side of the detachable lamp holder, the side is facing the light emitting direction of the backlight module, and the hook hole is also arranged on the reflector.

8. The detachable lamp holder as claimed in claim 7, wherein the detachable lamp holder further comprises a second side facing the pulling out direction of the detachable lamp holder, the second side has a clamp portion, located on the second side.