CN1971359A - Light conducting board and backlight module using the same - Google Patents
Light conducting board and backlight module using the same Download PDFInfo
- Publication number
- CN1971359A CN1971359A CN 200510101746 CN200510101746A CN1971359A CN 1971359 A CN1971359 A CN 1971359A CN 200510101746 CN200510101746 CN 200510101746 CN 200510101746 A CN200510101746 A CN 200510101746A CN 1971359 A CN1971359 A CN 1971359A
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- Prior art keywords
- light
- guide plate
- light guide
- light source
- conducting plate
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Abstract
The invention relates to a light conducting plate and apheliotropic mold train equipped with this light conducting plate, it aims at resolving the problems of impingement or breakage when the current light source of the apheliotropic mold train assembled with the light conducting plate. The apheliotropic mold train includes a light source and a light conducting plate, the light conducting plate includes a noumenon which possesses a light-out surface, at least two light-in surfaces and a floor which is corresponding with the light-out surface, the light source is mounted near the light-in surface of the light conducting plate, the light conducting plate possesses a positoning projection equipped with a containing trough, the positoning projection is set at the corner of light-in surface, the light source part is contained in the containing trough. At the same time, the invention also provides a display device using the apheliotropic mold train. Improving the structure of the light conducting plate makes the position of light conducting plate and light source fix relatively, the damage generated by light source is avoided, and the gap between the controlling light source and the light conducting plate can be easily controlled by working personnel during the assembling course.
Description
[technical field]
The invention relates to a kind of light guide plate and use the module backlight of this light guide plate.
[background technology]
In general, electronic product requirement at present is compact, and display device need effectively be utilized the space.Because liquid crystal itself is not had a characteristics of luminescence in the panel of LCD, thereby, for reaching display effect, a planar light source device is provided must for the LCD panel, as module backlight, its function is area source abundant to panel of LCD supply brightness and that be evenly distributed.
Prior art module backlight mainly is made up of light source and light guide plate.Wherein, this light source can be arranged on the incidence surface side of this light guide plate.The effect of this light guide plate is the transmission direction of direct light line, makes light by the even outgoing of the exiting surface of light guide plate.The light that sends because of light source enters from the incidence surface of light guide plate, so the relative position may command luminosity of the incidence surface of light guide plate and light source has improved light utilization.But because the individuality that the texture ratio of light source own still separates when assemble with light source than fragility and light guide plate easily makes to be subjected to external force collision or vibrations to cause light guide plate and light source to clash into mutually, to such an extent as to the damage light source.
A kind of module backlight of prior art as shown in Figure 1.This module 1 backlight comprises a light guide plate 11, a light source 12.This light guide plate 11 is a rectangle corner cut flat board, and it comprises that two adjacent incidence surfaces 111, an exiting surface 112 and are arranged on the corner cut 113 of these two incidence surfaces, 111 intersections.This light source 12 comprises a L type fluorescent tube 121 and draws, and be arranged on the electrode rubber 122 at these L type fluorescent tube 121 two ends respectively from L type fluorescent tube 121 two ends.Wherein this light source 12 is arranged on incidence surface 111 sides of this light guide plate 11, and the turning of this L type fluorescent tube 121 surrounds this corner cut 113.
In the prior art, because the existence of the corner cut 113 of light guide plate 11, can be so that the gap between this L type fluorescent tube 121 and this light guide plate 11 be littler, more improved light utilization, simultaneously, entire aphototropism mould 1 volume becomes littler, but to the fixing support that still will rely on assemblies such as shell of the relative position of said modules.Light guide plate 11 and light source 12 still are the individuality of each self-separation, yet when being subjected to external impacts or vibrations, the relative position of light guide plate 11 and light source 12 can not be effectively fixing, to such an extent as to influence the luminosity of module 1 backlight.In addition, in assembling process, be difficult to accurately locate the relative position of this light guide plate 11 and light source 12.
[summary of the invention]
For avoiding light guide plate that light source is damaged and effective fixed light source, be necessary to provide a kind of effective fixed light source, avoid light source and light guide plate bump to cause the light guide plate of damage.
For avoiding light guide plate that light source is damaged, effectively fixed light source and the problem that might as well just assemble are necessary to provide a kind of effective fixed light source, avoid light source and light guide plate bump to cause damage, and the module backlight of ease of assembly.
A kind of light guide plate, it comprises a light conducting plate body, this light conducting plate body has an exiting surface, at least two incidence surfaces and one and the exiting surface opposed bottom surface, this light guide plate comprises that also one has the locating convex block of storage tank, this locating convex block is arranged on the corner that this incidence surface intersects, and this Lights section is contained in this storage tank.
A kind of module backlight, it comprises a light source and a light guide plate, this light guide plate comprises a light conducting plate body, this light conducting plate body has an exiting surface, at least two incidence surfaces and first bottom surface relative with exiting surface, this light source is provided with near this light guide plate incidence surface, this light guide plate comprises that also one has the locating convex block of storage tank, and this locating convex block is arranged on the corner that this incidence surface intersects, and this Lights section is contained in this storage tank.
Compared to prior art, one storage tank is set on above-mentioned light guide plate, rely on this storage tank light source to be installed in the incidence surface side of light guide plate, realize that this light guide plate and light sources are integrated, fix the relative position of this light source and this light guide plate, avoid when being subjected to external impacts or when vibration, the problem that the relative position of light guide plate and light source can not effectively be fixed, and light guide plate and light source collide mutually and cause damaging light source.
Compared to prior art, one storage tank structure is set on the light guide plate of above-mentioned module backlight, with light source be installed in light guide plate the incidence surface side, realize that this light guide plate and light sources are integrated, fix the relative position of this light source and this light guide plate, avoid when being subjected to external impacts or when vibration, the problem that the relative position of light guide plate and light source can not effectively be fixed, and light guide plate and light source collide mutually and cause damaging light source; The convenient working personnel control the gap of light source and light guide plate in assembling process simultaneously.
[description of drawings]
Fig. 1 is a kind of prior art module floor map backlight.
Fig. 2 is the assembling stereogram of the present invention's module first embodiment backlight.
Fig. 3 is a light guide plate sectional perspective enlarged drawing shown in Figure 2.
Fig. 4 is a bottom surface of light guide plate network point distribution synoptic diagram shown in Figure 2.
Fig. 5 is a module floor map backlight shown in Figure 2.
Fig. 6 is the perspective exploded view of the present invention's module second embodiment backlight.
Fig. 7 is a module assembling synoptic diagram backlight shown in Figure 6.
Fig. 8 is a module floor map backlight shown in Figure 6.
Fig. 9 is the 3rd embodiment vertical view of the present invention's module backlight.
Figure 10 is the 4th embodiment vertical view of the present invention's module backlight.
Figure 11 is the 5th embodiment vertical view of the present invention's module backlight.
[embodiment]
See also Fig. 2, be the three-dimensional assembling of module first embodiment backlight of the present invention synoptic diagram.This display device 2 comprises a light guide plate 20 and a light source 22.
This light guide plate 20 comprises a light conducting plate body 21 and a location projection 210, and this light conducting plate body 21 is flat boards, has two adjacent incidence surfaces 211, an exiting surface 212 and a bottom surface 215; Two incidence surfaces 211 that this locating convex block 210 is positioned at this light conducting plate body 21 intersect the corner, and this locating convex block comprises a upper surface 213, a lower surface 216 and a storage tank 214.
This light source 22 comprises a L type fluorescent tube 221 and is positioned at the electrode rubber 222 at L type light pipe 221 two ends.Incidence surface 211 near this light conducting plate body 21 is provided with, and the corner of this fluorescent tube 221 is housed in this storage tank 214.
Seeing also Fig. 3, is the light guide plate 20 local enlarged diagrams of the present invention's module 2 first embodiments backlight.This light conducting plate body 21 is integrative-structures with this locating convex block 210, the upper surface 213 of this locating convex block 210 and one group of plane that is parallel to each other of lower surface of this locating convex block 210, and the bottom surface 215 of this lower surface 216 and light conducting plate body 21 is on same plane.Angle is observed from the side, and the relative distance of this upper surface 213 and this lower surface 216 is less than the relative distance of 215 of this exiting surface 212 and this bottom surfaces, this upper surface 213 and this exiting surface 212 formation one step.The corner edge contour that the incidence surface 211 of this light conducting plate body 21 intersects is a circular arc, and promptly this two adjacent incidence surface 211 is with the cambered surface transition; This storage tank 214 is arranged on this upper surface 213.
In the another kind of structure of this first embodiment, this bottom surface 215 and lower surface 216 be two not on same plane, and plane parallel to each other.
See also Fig. 4, these light conducting plate body 21 bottom surfaces 215 network point distribution synoptic diagram.Be printed with the site of density unevenness in the bottom surface 215 of this light conducting plate body 21, the reflection direction that it is used for destroying light makes it to diffusion all around.
See also Fig. 5, module backlight 2 floor map of first embodiment of the invention.In assembling process, the relative position that the incidence surface by storage tank 214 location fluorescent tubes 221 and this light conducting plate body 21 is 211, the operating personnel can be assembled into an integral body to light source 22 and light conducting plate body 21 fast.
After assembling is finished, because the outline of the shape of this storage tank 214 and this fluorescent tube 221 matches, this fluorescent tube 221 is positioned at incidence surface 211 sides of this light conducting plate body 21, and these fluorescent tube 221 corners are arranged in this storage tank 214, and surrounds the corner that this light conducting plate body 21 has step surface 213.Generally, gap length between this light conducting plate body 21 and this light source 22, influence the light utilization of light source 22 and the brightness of entire aphototropism mould 2, the gap length between light conducting plate body 21 and this light source 22 can be effectively controlled in the design of this storage tank 214.Under vibration or impact events, this storage tank 214 can avoid fluorescent tube 221 to be subjected to displacement in the horizontal direction, and then protection light source 22 is not damaged.
In this module 2 backlight, comprise that further one is positioned at the optical thin film (figure does not show) on the exiting surface 212.
In this module 2 backlight, further comprise a folded optical thin film (figure does not show) that is located under the bottom surface 215.
See also Fig. 6 again, module backlight 3 perspective exploded view of second embodiment of the invention.This embodiment is compared with first embodiment, this module 3 backlight further comprises a rubber sleeve 323, this rubber sleeve 323 is half circular cylindrical shape sleeve pipe, it adopts heat-barrier material to make, and be arranged on fluorescent tube 321 corners of this light source 32, in the assembling process, after the latter half of these rubber sleeve 323 parcel fluorescent tubes 321 corners, be contained in the storage tank 314 in light guide plate 30 corners.
See also Fig. 7, Fig. 8 again, Fig. 7 is second embodiment of the invention module 3 assembling synoptic diagram backlight, and Fig. 8 is second embodiment of the invention module 3 floor map backlight.
When this module 3 backlight was worked, power was provided to electrode, and the heat that light source 32 produces can outwards conduct to this rubber sleeve 323, because this rubber sleeve 323 adopts a kind of heat-barrier material to make, the heat of avoiding light source to produce like this conducts to light guide plate 30.In addition, under vibration or impact events, this rubber sleeve 323 can play buffer action, effectively protects light source 32.
In another structure of this embodiment, the shape of this rubber sleeve 323 more can be a circular cylindrical shape sleeve pipe, this rubber sleeve 323 coats the corner part of this fluorescent tube 321, avoid this fluorescent tube 321 directly to contact with this light guide plate 30, simultaneously, the light that this fluorescent tube 321 penetrates can directly be injected this light guide plate 30 by this incidence surface 311, has further improved light utilization.
In this embodiment, the color of this rubber sleeve 323 can be designed as white, reduces at module 3 backlight in the course of the work, because the light losing that the absorption of 323 pairs of light of this rubber sleeve causes.
Seeing also Fig. 9, is the floor map of third embodiment of the invention module backlight.This embodiment is compared with second embodiment, difference is: in this module 4 backlight, these light source 42 fluorescent tubes 421 adopt a U-shaped stylostome, and this light guide plate 40 still is a flat board, two adjacent corners in this light guide plate 41 are provided with locating convex block 410, effectively positioned light source 42.
See also Figure 10 again, the four embodiment of the invention vertical view.This embodiment and second embodiment are basic identical.But in this module 5 backlight, light guide plate 50 is a hexagon flat board, and this light source 52 adopts three cylindric fluorescent tubes 521 of V-arrangement, and the V-arrangement turning of this three tubes 521 surrounds three different corners of this light guide plate 51.
See also Figure 11, the present invention's module the 5th embodiment vertical view backlight.Be with the first embodiment difference in this embodiment: the light guide plate 60 corner edge contours of this module 6 backlight are broken line, that is, the incidence surface 611 of this light guide plate 60 is with surface blending.
Claims (10)
1. light guide plate, this light guide plate comprises a light conducting plate body, this light conducting plate body has an exiting surface, at least two incidence surfaces and one and the exiting surface opposed bottom surface, it is characterized in that: this light guide plate comprises that also one has the locating convex block of storage tank, and this locating convex block is arranged on the corner that this incidence surface intersects.
2. light guide plate as claimed in claim 1, it is characterized in that: this locating convex block comprises the upper surface and the lower surface of one group of opposing parallel, wherein this lower surface and this bottom surface are on same plane, and the upper surface of this locating convex block and this lower surface spacing are less than the spacing of this exiting surface and this bottom surface.
3. light guide plate as claimed in claim 1 is characterized in that: this locating convex block and this light guide plate are one.
4. light guide plate as claimed in claim 1 is characterized in that: this adjacent incidence surface corner is with plane or surface blending.
5. module backlight, comprise a light source and a light guide plate, this light guide plate comprises a light conducting plate body, this light conducting plate body has an exiting surface, at least two incidence surfaces and one and the exiting surface opposed bottom surface, this light source is provided with near this light guide plate incidence surface, it is characterized in that: this light guide plate comprises that also one has the locating convex block of storage tank, and this locating convex block is arranged on the corner that this incidence surface intersects, and this Lights section is contained in this storage tank.
6. module backlight as claimed in claim 5, it is characterized in that: this locating convex block comprises the upper and lower surface of one group of opposing parallel, wherein this lower surface and this bottom surface are on same plane, and the upper and lower surface spacing of this locating convex block is less than the spacing of this exiting surface and this bottom surface.
7. module backlight as claimed in claim 5 is characterized in that: this storage tank and this light guide plate are one.
8. module backlight as claimed in claim 5 is characterized in that: this adjacent incidence surface corner is with plane or surface blending.
9. module backlight as claimed in claim 5 is characterized in that: this light source is L shaped, U-shaped or V-arrangement.
10. module backlight as claimed in claim 5 is characterized in that: this module backlight further comprises a rubber sleeve, and this rubber sleeve is arranged in this storage tank, and is nested with this light source and cooperates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101017462A CN100414386C (en) | 2005-11-24 | 2005-11-24 | Light conducting board and backlight module using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101017462A CN100414386C (en) | 2005-11-24 | 2005-11-24 | Light conducting board and backlight module using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1971359A true CN1971359A (en) | 2007-05-30 |
| CN100414386C CN100414386C (en) | 2008-08-27 |
Family
ID=38112257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101017462A Expired - Fee Related CN100414386C (en) | 2005-11-24 | 2005-11-24 | Light conducting board and backlight module using the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100414386C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425770A (en) * | 2011-11-25 | 2012-04-25 | 深圳市华星光电技术有限公司 | Light bar fixing device, backlight module and liquid crystal display |
| US9904005B2 (en) | 2015-05-19 | 2018-02-27 | Boe Technology Group Co., Ltd. | Backlight module and display device |
| CN114355672A (en) * | 2022-01-10 | 2022-04-15 | Tcl华星光电技术有限公司 | Light source module, liquid crystal display device and display equipment |
| CN114355670A (en) * | 2022-01-10 | 2022-04-15 | Tcl华星光电技术有限公司 | Light source module, liquid crystal display device and display equipment |
| CN114355671A (en) * | 2022-01-10 | 2022-04-15 | Tcl华星光电技术有限公司 | Light source module, liquid crystal display device and display equipment |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2509377B2 (en) * | 1990-08-23 | 1996-06-19 | 富士通株式会社 | Backlight device |
| JPH0862429A (en) * | 1994-08-19 | 1996-03-08 | Toshiba Lighting & Technol Corp | Back light |
| JP2001305538A (en) * | 2000-04-19 | 2001-10-31 | Toshiba Corp | Liquid crystal display device |
| JP5103701B2 (en) * | 2001-07-13 | 2012-12-19 | パナソニック株式会社 | Liquid crystal display |
| JP2004247207A (en) * | 2003-02-14 | 2004-09-02 | Kawaguchiko Seimitsu Co Ltd | Backlight device |
| WO2006046627A1 (en) * | 2004-10-28 | 2006-05-04 | Kyushu Institute Of Technology | Wide viewing angle ocular fundus blood flow imaging device |
-
2005
- 2005-11-24 CN CNB2005101017462A patent/CN100414386C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425770A (en) * | 2011-11-25 | 2012-04-25 | 深圳市华星光电技术有限公司 | Light bar fixing device, backlight module and liquid crystal display |
| US9904005B2 (en) | 2015-05-19 | 2018-02-27 | Boe Technology Group Co., Ltd. | Backlight module and display device |
| CN114355672A (en) * | 2022-01-10 | 2022-04-15 | Tcl华星光电技术有限公司 | Light source module, liquid crystal display device and display equipment |
| CN114355670A (en) * | 2022-01-10 | 2022-04-15 | Tcl华星光电技术有限公司 | Light source module, liquid crystal display device and display equipment |
| CN114355671A (en) * | 2022-01-10 | 2022-04-15 | Tcl华星光电技术有限公司 | Light source module, liquid crystal display device and display equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100414386C (en) | 2008-08-27 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
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Granted publication date: 20080827 Termination date: 20161124 |