CN103104865A - Backlight module with reflecting layer and display device thereof - Google Patents
Backlight module with reflecting layer and display device thereof Download PDFInfo
- Publication number
- CN103104865A CN103104865A CN2012105351594A CN201210535159A CN103104865A CN 103104865 A CN103104865 A CN 103104865A CN 2012105351594 A CN2012105351594 A CN 2012105351594A CN 201210535159 A CN201210535159 A CN 201210535159A CN 103104865 A CN103104865 A CN 103104865A
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- reflecting layer
- backlight module
- outer portion
- internal ring
- ring portion
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- 230000008093 supporting effect Effects 0.000 claims abstract description 5
- 238000000576 coating method Methods 0.000 claims description 21
- 239000011248 coating agent Substances 0.000 claims description 19
- 238000001579 optical reflectometry Methods 0.000 claims description 14
- 239000002390 adhesive tape Substances 0.000 claims description 10
- 230000000994 depressogenic effect Effects 0.000 claims description 7
- 238000002834 transmittance Methods 0.000 claims description 7
- 238000004026 adhesive bonding Methods 0.000 claims 1
- 230000003287 optical effect Effects 0.000 abstract description 3
- 239000010410 layer Substances 0.000 abstract 6
- 239000011229 interlayer Substances 0.000 abstract 2
- 239000002131 composite material Substances 0.000 abstract 1
- 208000034699 Vitreous floaters Diseases 0.000 description 12
- 238000010586 diagram Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 6
- 230000001795 light effect Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 2
- 230000011514 reflex Effects 0.000 description 2
- 240000001439 Opuntia Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
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Abstract
The invention discloses a backlight module with a reflecting layer and a display device thereof. The back plate is arranged at the bottom of the display device and covers the display device from the outer side. In addition, the back plate is provided with an outer ring part parallel to the bottom surface of the light guide plate and an inner ring part extending from the outer ring part towards the center direction of the light guide plate, and the outer ring part supports the edge of the bottom surface of the light guide plate. The outer ring part supports a part of the light guide plate, and an interlayer space is arranged between the inner ring part and the bottom surface. The interlayer space is filled with a reflective layer. The reflecting layer is arranged on one surface of the inner ring part facing the bottom surface of the light guide plate and supports the light guide plate. The backlight module with the reflecting layer and the display device thereof provided by the invention have the advantages that the composite reflecting layer is arranged in the backlight module, the optical performances of the backlight module and the display device are improved, and meanwhile, the reflecting layer is used for supporting the light guide plate, so that the structural supporting effect is improved.
Description
Technical field
The invention relates to a kind of backlight module and comprise its display unit; Particularly, the invention relates to a kind of display unit that has the backlight module in reflecting layer and comprise it.
Background technology
Portable electronic devices such as notebook computer, mobile phone, panel computer etc. are widely used in daily life.Along with technical development, the size of portable electronic devices must satisfy light, thin, short, little characteristic, just can reach portable purpose.Yet, because the process of size thinning produces the variation on the space, sacrifice the situation of portion of element to reduce in response to the space that holds except need, also face simultaneously the challenge on display effect and Stability Analysis of Structures.
Figure 1A and Figure 1B are the schematic diagram of conventional display device.As shown in Figure 1A, the backboard 32 of conventional display device 10 is around the outside and be a hollow design, and the part that backboard 32 extends to the center is compared Outboard Sections one difference in height is arranged.See also Figure 1B, the cutaway view of conventional display device 10 as shown in Figure 1B, conventional display device 10 mainly comprises display floater 20 and backlight module 30.With the assembling mode of present display unit, must reserve depressed part 33 in backboard 32 bottoms and fit for locating adhesive tape 40.Yet, such design can cause backboard 32 towards the one side of LGP 31, difference of height to be arranged, as shown in Figure 1B, the position of mezzanine space 34 is namely the space (part that corresponding Figure 1A backboard 32 extends to the center) that produces after depressed part 33 is shaped, thus, the light effect that goes out of the viewing area B of corresponding clip sheaf space 34 just is affected.In addition, the reflectance coating 35 of thinning can cause light transmittance to rise, thereby reduces the reflecting effect of reflectance coating 35, adds the problem of aforementioned structure, makes the brightness at B edge, viewing area obviously dimmed, also reduces consumer's purchase intention.
Summary of the invention
A purpose of the present invention is the combined type reflecting layer to be set in backlight module, to improve the optical appearance of backlight module and display unit.
Another object of the present invention is to support LGP with the reflecting layer, to improve the support structure effect.
Backlight module comprises LGP, backboard and reflecting layer.Backboard is that the part setting is corresponding to bottom surface of light guide plate; In addition, backboard has the outer portion that is parallel to bottom surface of light guide plate and the internal ring portion that extends towards the LGP center position from outer portion, and supports the edge of bottom surface of light guide plate with outer portion.Outer portion supports the LGP of a part, and accompanies a mezzanine space between internal ring portion and bottom surface.Arrange in mezzanine space the reflecting layer in internal ring portion on the one side of bottom surface of light guide plate and be filled to the mezzanine space of small part.
Display unit also comprises display floater and is arranged on backlight module except backlight module, for example a LGP side position of bottom surface dorsad.By the setting in reflecting layer, edge, the viewing area optical appearance of display floater is promoted, increase the uniformity of brightness.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Description of drawings
Figure 1A and Figure 1B are the schematic diagram of existing display unit;
Fig. 2 A is the embodiment schematic diagram of display unit of the present invention;
Fig. 2 B is backboard of the present invention and reflecting layer position relationship schematic diagram;
Fig. 3 is another embodiment schematic diagram of display unit of the present invention;
Fig. 4 is another embodiment schematic diagram of display unit of the present invention.
Wherein, Reference numeral
100 display unit
200 display floaters
The outer surface of 202 display floaters
300 backlight modules
310 LGPs
312 bottom surfaces
314 micro-structurals
320 backboards
321 depressed parts
322 outer portion
The outer surface of 323 outer portion
324 internal ring portions
326 sidewalls
330 mezzanine spaces
340 reflecting layer
342 end faces
350 reflectance coatings
400 locating adhesive tapes
The B viewing area
The C hollow region
The specific embodiment
Below in conjunction with the drawings and specific embodiments, technical solution of the present invention being described in detail, further understanding purpose of the present invention, scheme and effect, but is not the restriction as claims protection domain of the present invention.
The invention provides a kind of backlight module and comprise its display unit.The better light-source structure that comprises side-light type of backlight module; Yet in different embodiment, also can comprise the light-source structure of straight-down negative.Display unit is preferably liquid crystal display; Yet in different embodiment, also can be the display that other use backlight module.
Fig. 2 A is the embodiment schematic diagram of display unit 100 of the present invention.As shown in Fig. 2 A, display unit 100 has display floater 200 and backlight module 300.Backlight module 300 mainly contains LGP 310, backboard 320 and reflecting layer 340.Backboard 320 is arranged at display unit 100 bottoms, and coats display unit 100 from the outside.In addition, backboard 320 has the outer portion 322 that is parallel to LGP 310 bottom surfaces and the internal ring portion 324 that extends towards LGP 310 center positions from outer portion 322, and supports the edge of LGP 310 bottom surfaces 312 with outer portion 322.In preferred embodiment, backboard 320 is made by metal sheet, and internal ring portion 324 can produce by impact style; So in different embodiment, backboard 320 also can be other different materials, or uses the different modes such as ejection formation to make.As shown in Fig. 2 A, outer portion 322 supports the part of the LGP 310, particularly edge of a part; And 312 of internal ring portion 324 and bottom surfaces accompany a mezzanine space 330.At least part of reflecting layer 340 that is filled with in mezzanine space 330; In the embodiment shown in Fig. 2 A, reflecting layer 340 is to be arranged at internal ring portion 324 on the one side of LGP 310 bottom surfaces 312 and to fill up mezzanine space 330, supports simultaneously LGP 310.
In addition, display floater 200 is arranged at LGP 310 side of bottom surface 312 dorsad, and namely display floater 200 and outer portion 322 are arranged on the relative both sides of LGP 310.The B edge, viewing area of display floater 200 is positions of corresponding internal ring portion 324, and in detail, the drop shadow spread of internal ring portion 324 on display floater 200 is the edge that is positioned at viewing area B.Viewing area B corresponds to the hollow region C of backboard 320 in other words conj.or perhaps toward the not corresponding backboard 320 of part of LGP 310 center positions.Please also refer to Fig. 2 B.Fig. 2 B is backboard 320 of the present invention and reflecting layer 340 position relationship schematic diagrames.As shown in Fig. 2 B, can obtain the cutaway view shown in Fig. 2 A along the AA ' direction of Fig. 2 B.Backboard 320 is positioned at display unit 100 outsides and to be positioned at display unit 100 inboard and cover the internal ring portion (not shown) in reflecting layer 340, and internal ring portion and reflecting layer 340 are all around hollow region C.
In preferred embodiment, be formed with a plurality of micro-structurals 314 on the bottom surface 312 of LGP 310, and hollow region C is in better micro-structural 314 distribution densities greater than internal ring portion 324 drop shadow spread on bottom surface 312 of micro-structural 314 distribution densities of drop shadow spread on bottom surface 312.As shown in Fig. 2 A, the part of the LGP 310 corresponding internal ring portions 324 in bottom surface 312, the density that its micro-structural 314 arranges is thinner; The part of LGP 310 bottom surface 312 corresponding hollow region C, the density that its micro-structural 314 arranges is closeer.In other words, micro-structural 314 arranges the better distribution in the form of a ring in the zone of dredging.Set-up mode, can improve the amount of light of hollow region C and make display unit 100 can possess lighter weight by this, and can mutually arrange in pairs or groups with setting or the material in reflecting layer 340, to obtain going out the most uniformly light effect.
As shown in Fig. 2 A, backboard 320 comprises the sidewall 326 that is connected with outer portion 322, and namely sidewall 326 is to connect outer portion 322 tossing about and surrounding the outside of display unit 100 with respect to internal ring portion 324.Post locating adhesive tape 400 on the outer surface of sidewall 326.As shown in Fig. 2 A, the both sides of locating adhesive tape 400 protrude from respectively sidewall 326, and the one lateral buckling connects the surface in contrast to backlight module 300, i.e. the outer surface 202 of display floater, and opposite side bends the outer surface 323 that connects outer portion.As shown in Fig. 2 A, the section of locating adhesive tape 400 presents as C font coating display floater 200 outer ledges, the sidewall 326 of backboard 320 and the outer surface 323 of outer portion 322.The inner surface that the outer surface of internal ring portion 324 protrudes from outer portion 322 is to form depressed parts 321 in outer portion 322 outsides, the part that makes locating adhesive tape 400 connect outer portion 322 outer surfaces can be contained in depressed part 321, therefore can keep the planarization of display unit 100 behind locating adhesive tape 400 applying backboard 320 bottoms, with ease of assembly.
In addition, LGP 310 also has reflectance coating 350 on bottom surface 312, and outer portion 322 supporting reflex films 350 are with indirect support bottom surface 312.As shown in Fig. 2 A, be positioned at reflecting layer 340 end faces 342 of 324 of reflectance coating 350 and internal ring portions and the flush that outer portion 322 supports LGP 310 bottom surfaces 312.Thus, LGP 310 can be supported indirectly by supporting reflex film 350 in reflecting layer 340, to improve the stability of structure.In this embodiment, the light reflectivity in reflecting layer 340 is identical with the light reflectivity on outer portion 322 surfaces.On the other hand, for avoiding the reflectance coating 350 after thinning to cause the not good situation of reflecting effect, the better employing of the light reflectivity in reflecting layer 340 is greater than the light reflectivity of reflectance coating 350, and/or the light transmittance in reflecting layer 340 is less than the light transmittance of reflectance coating 350, therefore, light by reflectance coating 350 can be again by reflecting layer 340 reflections, to improve light extraction efficiency.Simultaneously, set-up mode by this, viewing area B edge, i.e. the drop shadow spread of corresponding internal ring portion 324, its brightness can promote to avoid producing blanking bar.
In other embodiments, improve going out light effect and also can coordinating simultaneously the adjustment of micro-structural 314 density to reach by the reflecting layer 340 that employing has a high reflectance of viewing area B edge.Display unit 100 another embodiment as shown in Figure 3.Can notice in Fig. 3 and can further save the elasticity that reflectance coating 350 uses to increase the space in display unit 100.At this embodiment, micro-structural 314 in LGP 310 is evenly distributed, what for example Fig. 3 adopted is that micro-structural 314 all is adjusted into closeer mode, reflecting layer 340 with high reflectance is set, by the go out light effect that coordinate adjust viewing area B edge of reflecting layer 340 with micro-structural 314 in mezzanine space.Therefore, reflecting layer 340 not only can increase support structure, also can improve light effect, on the other hand, reflecting layer 340 with high reflectance and the adjustment of micro-structural 314 distribution densities be removable one one or whole reflectance coatings 350 also, and then increase display unit 100 inner exercisable space.
Fig. 4 is another embodiment schematic diagram of display unit 100 of the present invention.The structure of display unit 100 shown in Figure 4 roughly as previously mentioned.Difference is, in this embodiment, the distance of the end face 342 in reflecting layer 340 and LGP 310 bottom surfaces 312 is large with the distance of LGP 310 bottom surfaces 312 than outer portion 322 surfaces; In other words, on section shown in Figure 4, the end face in reflecting layer 340 is lower than the apparent height of outer portion 322.As shown in Figure 4, part mezzanine space 330 is inserted in reflecting layer 340.In this embodiment, adopt the light reflectivity in reflecting layer 340 greater than the light reflectivity on outer portion 322 surfaces.On the other hand, for avoiding the reflectance coating 350 after thinning to cause the not good situation of reflecting effect, the better employing of the light reflectivity in reflecting layer 340 is greater than the light reflectivity of reflectance coating 350, and/or the light transmittance in reflecting layer 340 is less than the light transmittance of reflectance coating 350, and set-up mode can promote the brightness of viewing area B edge by this.
Certainly; the present invention also can have other various embodiments; in the situation that do not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make according to the present invention various corresponding changes and distortion, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (14)
1. a backlight module, is characterized in that, comprises:
One LGP has a bottom surface;
One backboard supports the edge of this bottom surface; Wherein, this backboard has an outer portion and an internal ring portion, and the edge of this bottom surface is also supported in parallel this bottom surface of this outer portion; This internal ring portion extends towards this LGP center position from this outer portion, and and this bottom surface between accompany a mezzanine space; And
One reflecting layer is arranged at this internal ring portion on the one side of this bottom surface, and is filled to this mezzanine space of small part.
2. backlight module according to claim 1, is characterized in that, this internal ring portion and this reflecting layer surround a hollow region jointly.
3. backlight module according to claim 2, it is characterized in that, be formed with a plurality of micro-structurals on this bottom surface, this hollow region is in this micro-structural distribution density of drop shadow spread on this bottom surface this micro-structural distribution density greater than this internal ring portion drop shadow spread on this bottom surface.
4. backlight module according to claim 1, is characterized in that, the end face in this reflecting layer and this outer portion support the flush of this bottom surface.
5. backlight module according to claim 4, is characterized in that, the light reflectivity in this reflecting layer is identical with the light reflectivity on this outer portion surface.
6. backlight module according to claim 1, is characterized in that, the surperficial distance with this bottom surface of this outer portion is large for the end face in this reflecting layer and the distance of this bottom surface; The light reflectivity in this reflecting layer is greater than the light reflectivity on this outer portion surface.
7. backlight module according to claim 1, is characterized in that, further comprises a reflectance coating and be arranged on this bottom surface, and this outer portion supports this reflectance coating with this bottom surface of indirect support; Wherein this reflecting layer is between this reflectance coating and this internal ring portion.
8. backlight module according to claim 7, is characterized in that, the light reflectivity in this reflecting layer is greater than the light reflectivity of this reflectance coating.
9. backlight module according to claim 7, is characterized in that, the light transmittance in this reflecting layer is less than the light transmittance of this reflectance coating.
10. backlight module according to claim 7, is characterized in that, this LGP is supported indirectly by supporting this reflectance coating in this reflecting layer.
11. a display unit is characterized in that, comprises:
The described backlight module of any one in claim 1 to 10; And
One display floater is arranged at this LGP side of this bottom surface dorsad;
Wherein, this display floater has a viewing area, and the drop shadow spread of this internal ring portion on this display floater is positioned at the edge of this viewing area.
12. display unit according to claim 11 is characterized in that, this backboard comprises a sidewall and connects this outer portion with respect to the tossing about of this internal ring portion, the outside of this this display unit of side walls enclose.
13. display unit according to claim 12 is characterized in that, further comprises a location adhesive tape gluing in the outer surface of this sidewall; Wherein, the both sides of this locating adhesive tape protrude from respectively this sidewall, and a lateral buckling connects this display floater in contrast to the outer surface of this backlight module, and opposite side bends the outer surface that connects this outer portion.
14. display unit according to claim 13, it is characterized in that, the outer surface of this internal ring portion protrudes from the inner surface of this outer portion to form a depressed area outside this outer portion, and the part that this locating adhesive tape connects this outer portion outer surface is contained in this depressed part.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101137292A TWI485478B (en) | 2012-10-09 | 2012-10-09 | Backlight module having reflective layer and display apparatus thereof |
| TW101137292 | 2012-10-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103104865A true CN103104865A (en) | 2013-05-15 |
| CN103104865B CN103104865B (en) | 2015-05-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210535159.4A Active CN103104865B (en) | 2012-10-09 | 2012-12-12 | Backlight module with reflecting layer and display device thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103104865B (en) |
| TW (1) | TWI485478B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107219656A (en) * | 2016-03-22 | 2017-09-29 | 群创光电股份有限公司 | The manufacture method of display module and display module |
| US10564452B2 (en) | 2016-03-22 | 2020-02-18 | Innolux Corporation | Display module and manufacturing method thereof |
| CN111640375A (en) * | 2019-07-24 | 2020-09-08 | 友达光电股份有限公司 | Flexible display device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI666491B (en) * | 2018-05-08 | 2019-07-21 | 友達光電股份有限公司 | Display device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11185673A (en) * | 1997-12-24 | 1999-07-09 | Sony Corp | Image display device |
| US20080013337A1 (en) * | 2006-07-13 | 2008-01-17 | Chia-Ching Lien | Backlight module and liquid crystal display |
| TWM368095U (en) * | 2009-04-16 | 2009-11-01 | Chunghwa Picture Tubes Ltd | Backlight module |
| CN202371565U (en) * | 2011-11-04 | 2012-08-08 | 苏州茂立光电科技有限公司 | Backlight module and liquid crystal display device comprising same |
| CN102692761A (en) * | 2012-03-16 | 2012-09-26 | 友达光电股份有限公司 | Display device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5180158B2 (en) * | 2008-10-31 | 2013-04-10 | スタンレー電気株式会社 | LCD backlight |
-
2012
- 2012-10-09 TW TW101137292A patent/TWI485478B/en active
- 2012-12-12 CN CN201210535159.4A patent/CN103104865B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11185673A (en) * | 1997-12-24 | 1999-07-09 | Sony Corp | Image display device |
| US20080013337A1 (en) * | 2006-07-13 | 2008-01-17 | Chia-Ching Lien | Backlight module and liquid crystal display |
| TWM368095U (en) * | 2009-04-16 | 2009-11-01 | Chunghwa Picture Tubes Ltd | Backlight module |
| CN202371565U (en) * | 2011-11-04 | 2012-08-08 | 苏州茂立光电科技有限公司 | Backlight module and liquid crystal display device comprising same |
| CN102692761A (en) * | 2012-03-16 | 2012-09-26 | 友达光电股份有限公司 | Display device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107219656A (en) * | 2016-03-22 | 2017-09-29 | 群创光电股份有限公司 | The manufacture method of display module and display module |
| US10564452B2 (en) | 2016-03-22 | 2020-02-18 | Innolux Corporation | Display module and manufacturing method thereof |
| CN111640375A (en) * | 2019-07-24 | 2020-09-08 | 友达光电股份有限公司 | Flexible display device |
| CN111640375B (en) * | 2019-07-24 | 2022-03-08 | 友达光电股份有限公司 | Flexible display device |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201415129A (en) | 2014-04-16 |
| TWI485478B (en) | 2015-05-21 |
| CN103104865B (en) | 2015-05-06 |
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