CN103511918A - Backlight module and liquid crystal display device - Google Patents
Backlight module and liquid crystal display device Download PDFInfo
- Publication number
- CN103511918A CN103511918A CN201210221164.8A CN201210221164A CN103511918A CN 103511918 A CN103511918 A CN 103511918A CN 201210221164 A CN201210221164 A CN 201210221164A CN 103511918 A CN103511918 A CN 103511918A
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- lgp
- exiting surface
- breach
- backlight module
- framework
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Abstract
The invention relates to a backlight module and a liquid crystal display device with the backlight module. The backlight module comprises a light guide plate and a frame containing the light guide plate. The light guide plate is arranged in the frame and comprises a light emitting plane, a bottom face and a plurality of side faces, wherein the light emitting plane is opposite to the bottom face, and the side faces are intersected with the light emitting plane and the bottom face. The size of the bottom face is larger than that of the light emitting plane, so that the bottom face connected with at least one side face protrudes out of the light emitting plane connected with the side face, and a notch is defined in one side of the light emitting plane of the light guide plate. The notch extends in the length direction of the side face and penetrates through the side face. The frame comprises at least one protrusion, and the protrusion is matched with the notch to position the light guide plate.
Description
Technical field
The present invention relates to a kind of backlight module and adopt the liquid crystal indicator of this backlight module.
Background technology
Because the liquid crystal in panel of LCD itself is not had a characteristics of luminescence, therefore for reaching display effect, need to provide a planar light source device to realize Presentation Function to panel of LCD, as backlight module, its function is to provide brightness fully and the area source being evenly distributed to panel of LCD.
Conventionally backlight module mainly comprises light source, LGP and framework.The incidence surface setting of the relative LGP of light source, light-guide plate guides is sent the transmission direction of light beam from light source, the light beam that line source or spot light are sent converts planar light outgoing comparatively uniformly to illuminate the display panels in liquid crystal display, and framework is in order to fix the assembly of this backlight module.The LGP of backlight module and framework usually utilize projection on LGP and the draw-in groove on framework to cooperatively interact and are located, yet, locate mode due to LGP projection, need make the thickness of draw-in groove place frame on framework be greater than draw-in groove thickness, cause the increase of frame thickness, thereby increased the thickness of this backlight module, be unfavorable for the development of display unit slimming.
Summary of the invention
For solving the larger problem of thickness of the backlight module existing in prior art, the invention provides a kind of backlight module that reduces backlight module thickness.
The present invention also provides a kind of liquid crystal indicator that reduces backlight module thickness.
, comprise that a LGP and accommodates the framework of this LGP.This LGP is arranged in this framework, a plurality of sides that comprise an exiting surface, a bottom surface relative with this exiting surface, intersect with this exiting surface He Gai bottom surface.The size of this bottom surface is greater than the size of this exiting surface so that the exiting surface that this at least one side connects is given prominence in the bottom surface that at least one side connects, and defines a breach in exiting surface one side of this LGP.This breach extends and runs through this at least one side along the length direction of this at least one side, and this framework comprises at least one projection, and this projection and this breach match to locate LGP.
, it comprises the backlight module that a liquid crystal panel and contiguous this liquid crystal panel arrange.This backlight module comprises that a LGP and accommodates the framework of this LGP.This LGP is arranged in this framework, a plurality of sides that comprise an exiting surface, a bottom surface relative with this exiting surface, intersect with this exiting surface He Gai bottom surface.The size of this bottom surface is greater than the size of this exiting surface so that the exiting surface that this at least one side connects is given prominence in the bottom surface that at least one side connects, and defines a breach in exiting surface one side of this LGP.This breach extends and runs through this at least one side along the length direction of this at least one side, and this framework comprises at least one projection, and this projection and this breach match to locate LGP.
Because LGP has been cancelled projection design on side, it utilizes the projection design of framework to snap in the breach of LGP side, therefore, can reduce frame thickness, is beneficial to the slimming development of backlight module.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the first embodiment of liquid crystal indicator of the present invention.
Fig. 2 is the assembling schematic diagram of the backlight module of the liquid crystal indicator shown in Fig. 1.
Fig. 3 is that Fig. 2 is along the sectional view of III-III direction.
Fig. 4 is the schematic diagram of the second embodiment of liquid crystal indicator of the present invention.
Fig. 5 is the schematic diagram of another variant embodiment of the backlight module of liquid crystal indicator of the present invention.
Main element symbol description
Upper brightening piece 422
Lower brightening piece 423
LGP 430,530
Exiting surface 431,531
Bottom surface 432,532,439,539
Side 434,534
Breach 436,536
The following specific embodiment further illustrates the present invention in connection with above-mentioned accompanying drawing.
The specific embodiment
Refer to Fig. 1, it is the schematic diagram of the first embodiment of liquid crystal indicator of the present invention.This liquid crystal indicator 1 comprises the backlight module 40 that a upper cover 10, contiguous this liquid crystal panel 20 of a liquid crystal panel 20, arrange.This backlight module 40 comprises an optical diaphragm group 420, a LGP 430, a light source 440, a reflector plate 460, a framework 450 and a backboard 480.This upper cover 10 coordinates for accommodating liquid crystal panel 20 and backlight module 40 in the inner with this backboard 480.
This LGP 430 comprises bottom surface 432, a plurality of sides 434 that connect this exiting surface 431Yu Gai bottom surface 432 and at least one breach 436 that an exiting surface 431, is relative with this exiting surface 431.The size of this LGP 430 bottom surface 432 is greater than the size of this exiting surface 431, so that the bottom surface 432 that at least one side 434 is connected protrudes from the exiting surface 432 that this at least one side 434 is connected, and this at least one side 434 defines this at least one breach 436 in exiting surface 432 sides.This at least one breach 436 extends along the length direction of this at least one side 434, and the development length of this at least one breach 436 is preferably consistent with to make it to run through whole side 434 with the length of this at least one side 434.And the thickness of this LGP 430 at these breach 436 places is less than the thickness of these LGP 430 other parts, this breach 436 is less than the exiting surface 431 of this LGP 430 apart from the thickness of bottom surface 432 at the thickness of vertical exiting surface 431 directions.In this present embodiment, the quantity of this at least one side 434 is two, and this two side faces 434 is oppositely arranged.This breach 436 is vee.In the present embodiment, two opposite flanks 434 that define breach 436 can be excised cross section corner cut triangular in shape and be formed by the exiting surface 431 edge at LGP 430, and between this respective side 434 and this exiting surface 431, forming a tangent plane 439, this tangent plane 439 connects this this exiting surface 431 and this respective side 434.
This optical diaphragm group 420 comprises on one brightening piece 422 on diffusion sheet 421,, once brightening piece 423 and diffusion sheet 424 once, this lower diffusion sheet 424, lower brightening piece 423, upper brightening piece 422 and upper diffusion sheet 421 from bottom to up successively contiguous this exiting surface 431 arrange.Contiguous this bottom surface 432 of this reflector plate 460 arranges.
This light source 440 is chosen as a plurality of light-emittingdiodes.
This framework 450 comprises a plurality of grooves 452 and two projections 456 that are oppositely arranged that match with two breach 436 that are oppositely arranged of this LGP 430.In the present embodiment, this projection 456 is denation, and this denation has the 4561 ，Gai inclined-planes 4561, tangent plane 439 inclined-plane towards this breach 436 for this tangent plane 439 of butt.The length of this projection 456 is identical with the length of LGP 430 sides 434, by this breach 436 and coordinating of projection 456 LGP 430 being housed in framework 450 and being located.The plurality of groove 452 is for accommodating the plurality of light-emittingdiode.
See also Fig. 2 and Fig. 3, Fig. 2 is the assembling schematic diagram of the backlight module of the liquid crystal indicator shown in Fig. 1, and Fig. 3 is that Fig. 2 is along the sectional view of III-III direction.During assembling, this LGP 430 is housed in this framework 450, make the tangent plane 439 of breach 436 on this LGP 430 of projection 456 inclined-plane 4561 butts on this framework 450, so that the location that the breach 436 of LGP 430 matches to realize LGP 430 with projection 456 on framework 450, the plurality of light-emittingdiode is housed in a plurality of grooves 452 of this framework 450, contiguous these LGP 430 bottom surfaces 432 of this reflector plate 460 arrange, and the contiguous exiting surface 431 at LGP 430 of this optical diaphragm group 420 arranges.This backboard 480 is accommodated other assemblies of above-mentioned backlight module 40.
Owing to having cancelled projection design on LGP 430 side 434, it utilizes the cooperation of the breach design of LGP 430 side 434 and projection 456 designs of framework 450 with location LGP 430, therefore, without the size that increases framework 450, thereby can reduce the thickness of framework 450, be beneficial to the slimming development of backlight module 40.
And because the breach 436 of LGP 430 sides 434 runs through this respective side 434 along the direction of the length of respective side 434, identical with the length of LGP 430 sides 434 with the length of framework 450 projections 456 of these breach 436 couplings.Therefore, this projection 456 simultaneously intensity of reinforced frame 450 is played a supporting role, thereby in the situation that overall dimensions is constant, in when design, can further reduce the framework 450 thickness D1 that are designed with the position that breach 436 side 434 contacts with LGP 430, thereby make LGP 430 be designed with the breach 436 of positional distance LGP 430 and 2 increasings of the distance D of the intersection of exiting surface 434 that breach 436 side 434 contacts with framework 450, therefore, when user watches in LGP 430 exiting surface 431 1 side direction inner sides, be difficult for watching the gap of LGP 430 and framework 450 contact positions, thereby the bright line while significantly avoiding side to see is bad.
Refer to Fig. 4, it is the schematic diagram of the second embodiment of liquid crystal indicator of the present invention.The liquid crystal indicator 2 of second embodiment of the invention is mainly with the difference of the liquid crystal indicator 1 of the first embodiment: the thickness of the breach 536 of this LGP 530 in the direction of vertical exiting surface 531 equals the exiting surface 431 of this LGP 430 apart from the thickness of bottom surface 532, thereby the tangent plane 539 of this breach 536 and the exiting surface 531He bottom surface of this LGP 530 532 are intersected.
Certainly, the present invention is not limited to above-mentioned disclosed preferred embodiment, and for example, the tangent plane shape of the breach of the LGP of this case is not limited to plane, and correspondingly, the inclined plane shape of projection is also not limited to plane.The part that the LGP of this case cuts at exiting surface is not limited to triangle, and it can be according to shape change design, rectangle (consulting Fig. 5), trapezoidal etc. for example, and the shape for lugs of this framework and this breach match.
Claims (12)
1. a backlight module, comprise that a LGP and accommodates the framework of this LGP, this LGP is arranged in this framework, comprise an exiting surface, one bottom surface relative with this exiting surface, a plurality of sides of intersecting with this exiting surface He Gai bottom surface, it is characterized in that: the size of this bottom surface is greater than the size of this exiting surface so that the exiting surface that outstanding this at least one side, the bottom surface that at least one side connects connects, and define a breach in exiting surface one side of this LGP, this breach extends and runs through this at least one side along the length direction of this at least one side, this framework comprises at least one projection, this projection and this breach match to locate LGP.
2. backlight module according to claim 1, is characterized in that: this breach is less than the exiting surface of this LGP apart from the thickness of bottom surface at the thickness of vertical exiting surface direction.
3. backlight module according to claim 1, is characterized in that: this breach excises the formed triangle corner cut of a gable for this LGP at this exiting surface edge, and this projection is denation.
4. backlight module according to claim 3, is characterized in that: this breach equals the exiting surface of this LGP apart from the thickness of bottom surface at the thickness of vertical exiting surface direction.
5. backlight module according to claim 1, is characterized in that: the quantity of this at least one side is two, and this two side faces is oppositely arranged, and it is identical that the length of this projection matching with this breach and this LGP arrange side length jaggy.
6. backlight module according to claim 1, is characterized in that: this backlight module also comprises a backboard, and this LGP and framework are housed in this backboard, and contiguous this backboard in the bottom surface of this LGP arranges.
7. a liquid crystal indicator, comprise the backlight module that liquid crystal panel and contiguous this liquid crystal panel arrange, this backlight module comprises that a LGP and accommodates the framework of this LGP, this LGP is arranged in this framework, comprise an exiting surface, one bottom surface relative with this exiting surface, a plurality of sides of intersecting with this exiting surface He Gai bottom surface, it is characterized in that: the size of this bottom surface is greater than the size of this exiting surface so that the exiting surface that outstanding this at least one side, the bottom surface that at least one side connects connects, and define a breach in exiting surface one side of this LGP, this breach extends and runs through this at least one side along the length direction of this at least one side, this framework comprises at least one projection, this projection and this breach match to locate LGP.
8. liquid crystal indicator according to claim 7, is characterized in that: this breach is less than the exiting surface of this LGP apart from the thickness of bottom surface at the thickness of vertical exiting surface direction.
9. liquid crystal indicator according to claim 6, is characterized in that: this breach excises the formed triangle corner cut of a gable for this LGP at exiting surface edge, and this projection is denation.
10. liquid crystal indicator according to claim 7, is characterized in that: this breach equals the exiting surface of this LGP apart from the thickness of bottom surface at the thickness of vertical exiting surface direction.
11. backlight modules according to claim 7, is characterized in that: the quantity of this at least one side is two, and this two side faces is oppositely arranged, and it is identical that the length of this projection matching with this breach and this LGP arrange side length jaggy.
12. backlight modules according to claim 7, is characterized in that: this backlight module also comprises a backboard, and this LGP and framework are housed in this backboard, and contiguous this backboard in the bottom surface of this LGP arranges.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210221164.8A CN103511918A (en) | 2012-06-29 | 2012-06-29 | Backlight module and liquid crystal display device |
| TW101151301A TW201400944A (en) | 2012-06-29 | 2012-12-28 | Back light module and liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210221164.8A CN103511918A (en) | 2012-06-29 | 2012-06-29 | Backlight module and liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103511918A true CN103511918A (en) | 2014-01-15 |
Family
ID=49895079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210221164.8A Pending CN103511918A (en) | 2012-06-29 | 2012-06-29 | Backlight module and liquid crystal display device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103511918A (en) |
| TW (1) | TW201400944A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104360541A (en) * | 2014-12-03 | 2015-02-18 | 京东方科技集团股份有限公司 | Light guide plate, backlight module, liquid crystal display module and liquid crystal display device |
| CN108732819A (en) * | 2018-05-25 | 2018-11-02 | 深圳创维－Rgb电子有限公司 | Display module and display device |
| CN109839774A (en) * | 2017-11-24 | 2019-06-04 | 群创光电股份有限公司 | Show equipment |
| CN110244490A (en) * | 2019-06-14 | 2019-09-17 | 武汉华星光电技术有限公司 | Backlight module and display device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015162429A (en) * | 2014-02-28 | 2015-09-07 | オムロン株式会社 | Electronic equipment, display device provided with the same, and control equipment |
-
2012
- 2012-06-29 CN CN201210221164.8A patent/CN103511918A/en active Pending
- 2012-12-28 TW TW101151301A patent/TW201400944A/en unknown
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104360541A (en) * | 2014-12-03 | 2015-02-18 | 京东方科技集团股份有限公司 | Light guide plate, backlight module, liquid crystal display module and liquid crystal display device |
| WO2016086653A1 (en) * | 2014-12-03 | 2016-06-09 | 京东方科技集团股份有限公司 | Light guide plate, backlight module and liquid crystal display device |
| US10067367B2 (en) | 2014-12-03 | 2018-09-04 | Boe Technology Group Co., Ltd. | Light guide plate, backlight module and liquid cristal display device |
| CN109839774A (en) * | 2017-11-24 | 2019-06-04 | 群创光电股份有限公司 | Show equipment |
| CN109839774B (en) * | 2017-11-24 | 2022-01-11 | 群创光电股份有限公司 | Display device |
| CN108732819A (en) * | 2018-05-25 | 2018-11-02 | 深圳创维－Rgb电子有限公司 | Display module and display device |
| CN110244490A (en) * | 2019-06-14 | 2019-09-17 | 武汉华星光电技术有限公司 | Backlight module and display device |
| CN110244490B (en) * | 2019-06-14 | 2024-03-26 | 武汉华星光电技术有限公司 | Backlight module and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201400944A (en) | 2014-01-01 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140115 |