CN101078833A - Backlight module and liquid crystal display containing the backlight module - Google Patents
Backlight module and liquid crystal display containing the backlight module Download PDFInfo
- Publication number
- CN101078833A CN101078833A CN 200610060745 CN200610060745A CN101078833A CN 101078833 A CN101078833 A CN 101078833A CN 200610060745 CN200610060745 CN 200610060745 CN 200610060745 A CN200610060745 A CN 200610060745A CN 101078833 A CN101078833 A CN 101078833A
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- edge
- backboard
- base plate
- module backlight
- light
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Abstract
The invention discloses an aphototropism mould, which comprises the following parts: back board, light conducting board and light source group, wherein the back board consists of floor and at least one holding part; the floor contains at least one first rim and the holding part lies at one end of the first rim; the light conducting board is set on the floor, which possesses one light inlet face; the light source group is set at the first rim of back board to correspond to the light inlet face of light conducting board, which concludes a reflecting lid with at least one chucking part to chuck the holding part; the outlet ray of the aphototropism mould is more uniform. The invention also provides a LCD of the aphototropism mould.
Description
Technical field
The invention relates to a kind of module backlight and adopt the LCD of this module backlight.
Background technology
LCD is a kind of non-self-emission display apparatus, it shows mainly passing through or the obstructed realization of coming by control light beam that external light source sends, therefore need external light source and corresponding guiding device usually, as module backlight, this module backlight can be with the beam direction display panel that external light source sent.
Usually, module backlight mainly comprises light source, light source cover, light guide plate, backboard, glue frame and other optical element, and this backboard and glue frame are fixed light source, light source cover, light guide plate and other optical element combination in the lump.
A kind of liquid crystal display module of prior art as shown in Figure 1, this liquid crystal display module 1 comprises a module 10 backlight and a liquid crystal panel 11, enters this liquid crystal panel 11 from the light of these module 10 outgoing backlight.
This module 10 backlight comprises blast sheet 160 on a light guide plate 110, a light sources 120, a glue frame 130, a backboard 140, the reflector plate 150,, once a blast sheet 170 and a diffusion sheet 180.This glue frame 130 is accommodated this light guide plate 110, light sources 120, reflector plate 150, last blast sheet 160, following blast sheet 170 and diffusion sheet 180 in the lump with this backboard 140 and is combined.
This backboard 140 comprises a base plate 141 and two sidewalls 142 that are oppositely arranged, and this two sidewall 142 intersects with this base plate 141 respectively.This backboard 140 cooperates with this glue frame 130 by this two sidewall 142.
This light guide plate 110 comprises a light-emitting face 111, one and the incidence surface 112 that intersects of light-emitting face 111 and one and these light-emitting face 111 opposed bottom surface 113.This light sources 120 comprises a light source 121 and a reflex housing 122.This light source 121 is fluorescent tubes of strip, this incidence surface 112 is provided with relatively, this reflex housing 122 is the groove body of both ends open, these reflex housing 122 contiguous these light sources 121 are provided with, with the outside outgoing of light that prevents to penetrate by light source 121, and the light that as far as possible makes light source 121 concentrates and to inject in this light guide plate 120, improves light utilization efficiency.The bottom surface 113 that this reflector plate 170 is pressed close to this light guide plate 110 is provided with.This diffusion sheet 180, following blast sheet 170 reach upward, and blast sheet 160 is arranged on this light guide plate 110 light-emitting faces 111 1 sides in regular turn.
Wherein, reflex housing 122 generally is electrically connected to fetch with backboard 140 by conductive tape (figure does not show) or screw (figure does not show) and is grounded effect.
This liquid crystal display module 1 further comprises a upper frame 12, and this liquid crystal panel 11 is arranged on this glue frame 130, and this upper frame 12 cooperates with this backboard 140, and this liquid crystal panel 11 and this module 10 combinations backlight are fixed together.
But, because when above-mentioned liquid crystal display module 1 is assembled, at first this light sources 120 contiguous sidewall 142 on the base plate 141 of backboard 140 is provided with, again reflector plate 150, light guide plate 110, last blast sheet 160, following blast sheet 170 and diffusion sheet 180 are placed in regular turn, and glue frame 130 engaged with this backboard 140, on this glue frame 130, liquid crystal panel 11 is set then, at last upper frame 12 is engaged with backboard 140 and finish assembling.In assembling light sources 120 and reflector plate 150 processes, because light sources 120 is not located in advance, therefore easily cause the dislocation assembling and make the crooked folding line that produces of reflector plate 150 extruding, thereby the light inequality that reflector plate 150 folding line places are reflected, be that module 10 emergent lights backlight are inhomogeneous, and then influence liquid crystal display module 1 display quality.And, assembling process is at first to assemble light sources 120 at first semi-enclosed backboard 140, other optical element of follow-up assembling and liquid crystal panel, therefore, when light source 121 impaired need replacings, take whole group liquid crystal display module 1 apart, could change light source 121, cause light source 121 to be difficult for changing, and in unloading process, may damage each optical element and liquid crystal panel 11.In addition, adopt conductive tape or screw to realize the ground connection effect of reflex housing 122, promptly need independent Connection Element to be grounded effect, thereby increase production cost.
Summary of the invention
For solving the uneven problem of above-mentioned module emergent light backlight, be necessary to provide a kind of emergent light more uniform module backlight.
A kind of LCD that adopts above-mentioned module backlight also is provided.
A kind of module backlight, it comprises a backboard, a light guide plate and at least one light sources, this backboard comprises a base plate and at least one holding parts, this base plate comprises at least one first edge, this at least one holding parts is positioned at this first edge, one end, this light guide plate is arranged on the base plate of this backboard, it has an incidence surface, this light sources is arranged on first edge of this backboard and corresponding with the incidence surface of this light guide plate, this light sources comprises a reflex housing, at least one end of this reflex housing is provided with a holding section, and the holding parts of this holding section and this backboard is corresponding and be fixed mutually.
As the improvement of above-mentioned module backlight, this base plate further comprises at least one second edge that links to each other with this first edge, and this second edge is provided with sidewall, and this sidewall and this base plate intersect, and this sidewall and this holding parts are positioned at the same side of this base plate.
A kind of LCD, it comprises a liquid crystal panel and a module backlight, enter this liquid crystal panel from the light of this module outgoing backlight, this module backlight comprises a backboard, one light guide plate and at least one light sources, this backboard comprises a base plate and at least one holding parts, this base plate comprises at least one first edge, this at least one holding parts is positioned at this first edge, one end, this light guide plate is arranged on the base plate of this backboard, it has an incidence surface, this light sources is arranged on first edge of this backboard and corresponding with the incidence surface of this light guide plate, this light sources comprises a reflex housing, at least one end of this reflex housing is provided with a holding section, and the holding parts of this holding section and this backboard is corresponding and be fixed mutually.
As the improvement of above-mentioned module backlight, this base plate further comprises at least one second edge that links to each other with this first edge, and this second edge is provided with sidewall, and this sidewall and this base plate intersect, and this sidewall and this holding parts are positioned at the same side of this base plate.
Compared with prior art, because the backboard of above-mentioned module backlight and LCD comprises at least one first edge, this at least one end in first edge is provided with holding parts, and at least one end of the reflex housing of light sources also is provided with the holding section that the holding parts with this backboard matches, this light sources is arranged on first edge of this backboard, the holding section of this reflex housing and the holding parts of this backboard are fixed mutually, promptly in this module process backlight of assembling, because light sources is positioned on this backboard in advance, therefore be difficult for causing the dislocation assembling and make the crooked folding line that produces of other element extruding during other element of follow-up assembling, thereby make module emergent light backlight more even, and then can improve the liquid crystal display displays quality.And, the holding section of reflex housing directly combines with the holding parts of this backboard, therefore need not to be grounded effect by independent Connection Elements such as conductive tape or screws in addition, and then can save material and assembling man-hours requirements thereof such as conductive tape or screw, so reduce production costs.
In addition, the sidewall of backboard only is arranged on this second edge, promptly first edge that light sources is set of this base plate is not provided with sidewall, but directly engage mutually with the holding parts of this backboard and fix this light sources by the holding section of this reflex housing, so assembling process of follow-up module backlight, on this light sources, there are not how many elements of wheel assembling, when the impaired need of light source are changed, need not to take apart whole group LCD, only take housing apart and by side the holding section of reflex housing is dialled from this light sources being extracted out from the holding parts of this backboard and change light source, thereby can reduce to change the infringement in the light sources process other elements.
Description of drawings
Fig. 1 is a kind of synoptic diagram of prior art LCD.
Fig. 2 is the synoptic diagram of LCD first embodiment of the present invention.
Fig. 3 is the enlarged diagram of Fig. 2 dorsulum.
Fig. 4 is the enlarged diagram of light sources among Fig. 2.
Fig. 5 is the enlarged diagram of glue frame among Fig. 2.
Fig. 6 is other improvement synoptic diagram of back panel of liquid crystal display of the present invention.
Fig. 7 is other improvement synoptic diagram of back panel of liquid crystal display of the present invention.
Fig. 8 is other improvement synoptic diagram of back panel of liquid crystal display of the present invention.
Embodiment
Seeing also Fig. 2, is the synoptic diagram of LCD first embodiment of the present invention.This LCD 2 comprises a liquid crystal panel 21 and a module 20 backlight, enters this liquid crystal panel 21 from the light of these module 20 outgoing backlight.
This module 20 backlight comprises blast sheet 220 on the glue frame 210,, once blast sheet 230, a diffusion sheet 240, a light guide plate 250, a reflector plate 260, two light sources 270 and a backboard 280.This glue frame 210 should be gone up blast sheet 220 in the lump with this backboard 280, blast sheet 230, diffusion sheet 240, light guide plate 250, reflector plate 260 and light sources 270 are accommodated and combined down.
See also Fig. 3, the enlarged diagram of this backboard 280.This backboard 280 comprises a base plate 281, four holding parts 282 and two sidewalls 285.This base plate 281 is a rectangle, and it comprises two relative first edges 2812 and two relative second edges 2814 in addition.This sidewall 285 is arranged on 2814 places, second edge of this base plate 281, and intersects vertically with this base plate 281.This sidewall 285 is for having the rough object of a plurality of recesses 2851.This four holding parts 282 is oppositely arranged on this 2812 two ends, first edge in twos, and adjacent on same edge with this sidewall 285.This holding parts 282 is the depression thing that outwards protrudes.
See also Fig. 4, the enlarged diagram of this light sources 270.This light sources 270 is arranged on 2812 places, base plate 281 first edges of this backboard 280.This light sources 270 comprises a reflex housing 272 and a light source 271.This light source 271 is fluorescent tubes of strip.This reflex housing 272 comprises an opening 2721, a reflection body 273 and two holding sections 275.This reflection body 273 is the rectangular cell body of " ㄩ " shape.These reflection body 273 length are identical with the fluorescent tube degree, these reflection body 273 two ends are provided with this two holding section 275 respectively, this holding section 275 has only the bottom to link to each other with these reflection body 273 trench bottoms, and other parts do not link to each other with this reflection body 273, i.e. the certain elasticity of these holding section 275 tools.This light source 271 is placed in this reflection body 273 by this opening 2721.This holding section 2752 is the projection that outwards protrudes, and its size and shape are corresponding with the holding parts 282 of this backboard 280.
This light guide plate 250 comprises a light-emitting face 251, intersect with light-emitting face 251 and relative two incidence surfaces 252 and a bottom surface 253 relative with this light-emitting face 251.This light guide plate 250 is arranged on the base plate 281 of this backboard 280, and the incidence surface 252 of this light guide plate 280 is corresponding with the opening 2721 that is arranged on these base plate 281 first edges 2812 place's light sources 270.This diffusion sheet 240, following blast sheet 230 reach upward, and blast sheet 220 is arranged on this light guide plate 250 light-emitting faces 251 1 sides in regular turn.The bottom surface 253 that this reflector plate 260 is pressed close to this light guide plate 250 is provided with.
See also Fig. 5, the enlarged diagram of this glue frame 210.This glue frame 210 is a framework, it comprises four side 211, wherein two opposed side edges 211 are provided with a plurality of protrusions 2111, and this two opposed side edges 211 is corresponding with two sidewalls 285 of this backboard 280, and the position of these a plurality of protrusions 2111 and size are all coincide with more than 285 recess of this sidewall 2851.This glue frame 210 and this backboard 280 are to combine with closely cooperating of more than 285 recess 2851 of sidewall by a plurality of protrusions 2111 of this side 211.These glue frame 210 materials are plastics, as the polycarbonate material.
This liquid crystal display module 2 further comprises a upper frame 22, and this liquid crystal panel 21 is arranged on this glue frame 280, and this upper frame 22 cooperates with this backboard 280, and this liquid crystal panel 21 and this module 20 combinations backlight are fixed together.
This liquid crystal display module 2 is assembled by following mode, at first, light sources 270 is arranged on 2812 places, base plate 281 first edges of backboard 280, and with the combining of two holding parts 282 of this backboard 280 this light sources 270 is fixed on this backboard 280 by two holding sections 275 of reflex housing 272, again reflector plate 260 and light guide plate 250 are arranged on the base plate 281 of this backboard 280 in regular turn, wherein two incidence surfaces 252 of this light guide plate 250 and these light sources 270 openings 2721 corresponding settings, then in regular turn with this diffusion sheet 240, following blast sheet 230 reaches upward, and blast sheet 220 is placed on this light guide plate 250 light-emitting faces 251 1 sides, and this glue frame 210 is cooperated with this backboard 280 and module 20 backlight is combined, further this liquid crystal panel 21 is arranged on this glue frame 210, accommodate this liquid crystal panel 21 and module backlight 20 with upper frame 22 again, and this upper frame 22 is fixing and finish assembling with this backboard 280 combinations.
Compared with prior art, because the backboard 280 of the present invention's module 20 backlight and LCD 2 comprises at least one first edge 2812, these 2812 two ends, first edge are respectively arranged with holding parts 282, and reflex housing 272 two ends of light sources 270 also are respectively arranged with the holding section 275 that matches with this holding parts 282, this light sources 270 is arranged on 2812 places, first edge of this backboard 280, two holding sections 275 of this reflex housing 272 are fixed mutually with two holding parts 282 of this backboard 280, promptly in the process of this module 20 backlight of assembling, because light sources 270 is positioned on this backboard 280 in advance, be difficult for causing the dislocation assembling and make the crooked folding lines that produce of this reflector plate 260 extruding during therefore follow-up assembling reflector plate 260, thereby make module 20 emergent lights backlight more even, and then can improve LCD 2 display qualities.And, two holding parts 2752 of reflex housing 272 directly combine with two snap-in structures 2822 of this backboard 280, therefore need not to be grounded effect by independent Connection Elements such as conductive tape or screws in addition, and then can save material and assembling man-hours requirements thereof such as conductive tape or screw, so reduce production costs.
In addition, the sidewall 285 of backboard 280 only is arranged on this 2814 places, second edge, promptly 2812 places, first edge that light sources 270 is set of this base plate 281 are not provided with sidewall 285, but directly fix this light sources 270 with two holding parts, 282 mutual engagings of this backboard 280 by two holding sections 275 of this reflex housing 272, so assembling process of follow-up module 20 backlight, on this light sources 270, there are not how many elements of wheel assembling, when light source 271 impaired need replacings, need not to take apart whole group LCD 2, only take upper frame 22 apart and by side two holding sections 275 of reflex housing 272 are dialled from this light sources 270 being extracted out from two holding parts 282 of this backboard 280 and change light sources 271, thereby can reduce to change the infringement in the light sources process other elements.
But, it is described that LCD of the present invention is not limited to an above-mentioned embodiment, the fit system of this backboard and light sources can be as shown in Figure 6, this backboard 380 comprises a base plate 381, this base plate 381 is a rectangle, and it comprises one first edge 3812 and 3 second edges 3814 that link to each other, and these 3812 two ends, first edge are relatively set with two holding parts 382, this second edge 3814 is respectively arranged with sidewall 385, and this light sources 370 is arranged on this 3812 places, first edge; Also can be as shown in Figure 7, the base plate 481 of this backboard 480 is a rectangle, it comprises two first edges 4812 that link to each other and two second edges 4814 that link to each other, these 4812 two ends, 2 first edges are relatively set with two holding parts 482 respectively, these 4814 places, second edge have sidewall 485 respectively, and this two light sources (figure does not show) is separately positioned on this 4812 places, 2 first edges; Also can be as shown in Figure 8, the base plate 581 of this backboard 580 is semicircle, it comprises one first edge 5812 and one second edge 5814, this first edge 5812 is the diameter limit of this semicircle base plate 581, these 5812 two ends, first edge are relatively set with two holding parts 582, these 5814 places, second edge are provided with sidewall 585, and this light sources (figure does not show) is arranged on this 5812 places, first edge; By that analogy, the base plate of this backboard can be polygon, and it comprises a plurality of first edges spaced apart and a plurality of second edge, and these two ends, first edge are relatively set with two holding parts respectively, this second edge is respectively arranged with sidewall, and this light sources is separately positioned on this first edge; The holding parts of this backboard also can be projection, and the holding section of this light sources can be the depressed part corresponding with this projection, and this projection can engage mutually with depressed part.
Claims (10)
1. module backlight, it comprises a backboard, one light guide plate and at least one light sources, this backboard comprises a base plate, this base plate comprises at least one first edge, this light guide plate is arranged on the base plate of this backboard, it has an incidence surface, this light sources is arranged on first edge of this backboard and corresponding with the incidence surface of this light guide plate, this light sources comprises a reflex housing, it is characterized in that: at least one end of this reflex housing is provided with a holding section, this backboard further comprises at least one holding parts, and above-mentioned holding parts is positioned at this first edge, one end, and the holding section of reflex housing is corresponding with the holding parts of this backboard also to be fixed mutually.
2. module backlight as claimed in claim 1, it is characterized in that: this base plate further comprises at least one second edge, it links to each other with this first edge, this backboard further comprises sidewall, this sidewall is arranged at this second edge, this sidewall and this base plate intersect, and this sidewall and this holding parts are positioned at this base plate the same side.
3. module backlight as claimed in claim 2 is characterized in that: this module backlight further comprises a glue frame, and this glue frame comprises a plurality of sides, and its at least one side engages mutually with the sidewall of this backboard.
4. module backlight as claimed in claim 2 is characterized in that: this base plate is a rectangle, and it comprises two relative first edge and the two second relative edges, this first edge and the second edge alternate configurations.
5. module backlight as claimed in claim 2 is characterized in that: this base plate is a rectangle, and it comprises one first edge and three second edges that link to each other, and this relative with two respectively second edge of these two ends, first edge links to each other.
6. module backlight as claimed in claim 2 is characterized in that: this base plate is for semicircle, and it comprises one first edge and one second edge, the diameter limit that this first edge is this semicircle base plate.
7. module backlight as claimed in claim 1 is characterized in that: the holding parts of this backboard is the depression thing, and the holding section of this reflex housing is the size and dimension projection corresponding with this depression thing.
8. module backlight as claimed in claim 1 is characterized in that: the holding parts of this backboard is a projection, and the holding section of this reflex housing is the size and dimension depression thing corresponding with this projection.
9. module backlight as claimed in claim 1 is characterized in that: this module backlight further comprises a reflector plate, and it is arranged between this light guide plate and the backboard.
10. LCD, it comprises a liquid crystal panel and a module backlight, enters this liquid crystal panel from the light of this module outgoing backlight, it is characterized in that: this module backlight is any described module backlight in the claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610060745 CN101078833A (en) | 2006-05-24 | 2006-05-24 | Backlight module and liquid crystal display containing the backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610060745 CN101078833A (en) | 2006-05-24 | 2006-05-24 | Backlight module and liquid crystal display containing the backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101078833A true CN101078833A (en) | 2007-11-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610060745 Pending CN101078833A (en) | 2006-05-24 | 2006-05-24 | Backlight module and liquid crystal display containing the backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101078833A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101487942B (en) * | 2008-01-15 | 2012-05-23 | 奇美电子股份有限公司 | Back light module unit and its display equipment |
| CN102853342A (en) * | 2012-09-11 | 2013-01-02 | 深圳市华星光电技术有限公司 | Edge-lit LED backlight module, liquid crystal display device and fixation method of reflector plate |
| CN103090321A (en) * | 2012-12-29 | 2013-05-08 | 深圳市帝显电子有限公司 | Backlight source with location structure arranged in base plate and assembly method thereof |
| CN103148418A (en) * | 2013-03-28 | 2013-06-12 | 许伟岸 | Backlight module of liquid crystal display |
-
2006
- 2006-05-24 CN CN 200610060745 patent/CN101078833A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101487942B (en) * | 2008-01-15 | 2012-05-23 | 奇美电子股份有限公司 | Back light module unit and its display equipment |
| CN102853342A (en) * | 2012-09-11 | 2013-01-02 | 深圳市华星光电技术有限公司 | Edge-lit LED backlight module, liquid crystal display device and fixation method of reflector plate |
| CN102853342B (en) * | 2012-09-11 | 2015-05-06 | 深圳市华星光电技术有限公司 | Edge-lit LED backlight module, liquid crystal display device and fixation method of reflector plate |
| CN103090321A (en) * | 2012-12-29 | 2013-05-08 | 深圳市帝显电子有限公司 | Backlight source with location structure arranged in base plate and assembly method thereof |
| CN103090321B (en) * | 2012-12-29 | 2015-06-24 | 深圳市帝显电子有限公司 | Backlight source with location structure arranged in base plate and assembly method thereof |
| CN103148418A (en) * | 2013-03-28 | 2013-06-12 | 许伟岸 | Backlight module of liquid crystal display |
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