CN103032779A - Display device and backlight module thereof - Google Patents
Display device and backlight module thereof Download PDFInfo
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- CN103032779A CN103032779A CN2013100198499A CN201310019849A CN103032779A CN 103032779 A CN103032779 A CN 103032779A CN 2013100198499 A CN2013100198499 A CN 2013100198499A CN 201310019849 A CN201310019849 A CN 201310019849A CN 103032779 A CN103032779 A CN 103032779A
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- light source
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- 241000278713 Theora Species 0.000 claims description 4
- 239000003292 glue Substances 0.000 abstract description 5
- 239000010410 layer Substances 0.000 abstract 3
- 239000012790 adhesive layer Substances 0.000 abstract 2
- 230000008901 benefit Effects 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 238000007323 disproportionation reaction Methods 0.000 description 4
- 239000004973 liquid crystal related substance Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000005282 brightening Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
Abstract
The invention discloses a display device and a backlight module thereof. The backlight module comprises a light guide plate, a light source and a shading sheet. The light guide plate is provided with an adjacent light incident surface and an adjacent light emergent surface. The light source faces the light incident surface. The light shielding sheet is arranged on the light emergent surface and is adjacent to the light incident surface. The shading sheet is provided with a base layer and an adhesive layer. The base layer is arranged above the glue layer and is provided with a first side edge close to the light source and a second side edge far away from the light source. The adhesive layer is provided with a third side edge close to the light source and a fourth side edge far away from the light source. The third side edge keeps a first distance with the first side edge, and the fourth side edge keeps a second distance with the second side edge.
Description
Technical field
The present invention relates to a kind of electronic installation, particularly relate to a kind of display unit and backlight module thereof with backlight module.
Background technology
For improving rapidly of multimedia society, mostly be indebted to the fast development of semiconductor element or display unit.With regard to display element, negative electrode display tube (or claiming iconoscope, Cathode Ray Tube, CRT) has been monopolized the monitor market because having excellent display quality and economy always.Yet, CRT have volume excessive with the problem that consumed multiple-energy-source, for the requirements such as high image quality, low consumption electrical power, slim volume production, low voltage drive, volume are little, the display of CRT formula obviously can't be reached this requirement.For this a bit, liquid crystal display (Liquid Crystal Display, be called for short LCD) very large advantage will be arranged, and LCD has been widely used in medium and small Portable TV, picture telephone, has shot with video-corder projector, notebook computer, desktop display, panel computer and projection color tv etc.
Take liquid crystal display as example, it includes backlight module.Backlight module comprises LGP and light source, and surface of light source is to the incidence surface of LGP.In addition, for fear of light leak, the edge of the exiting surface of LGP more can be provided with light shield layer, is close to the phenomenon of the ora terminalis generation light leak of incidence surface to prevent exiting surface.
Yet because light shield layer is the exiting surface that adheres to LGP by glue-line, therefore when the light of light source was passed to LGP and is stained with the exiting surface of glue-line, the energy of light will be absorbed by glue-line and consume.And, glue-line also on business poor skew and because of temperature deformation by the light shield layer ora terminalis place phenomenon of glue of occur overflowing, and then cause the problem of brightness disproportionation.Thus, with so that the optics decline in benefits of backlight module.
Summary of the invention
The object of the present invention is to provide a kind of display unit and backlight module thereof, be used for promoting the optics benefit of backlight module.
For reaching above-mentioned purpose, backlight module disclosed in this invention, it comprises LGP, light source and anti-dazzling screen.LGP has adjacent incidence surface and exiting surface.Surface of light source is to incidence surface.Anti-dazzling screen is arranged on the exiting surface, and the contiguous incidence surface of anti-dazzling screen.Anti-dazzling screen has basic unit and glue-line.Basic unit is positioned at the top of glue-line, and basic unit has the first side of contiguous light source and away from the second side of light source.Glue-line has the 3rd side of contiguous light source and away from the four side of light source.The 3rd side and first side keep the first spacing, and four side and second side keep the second spacing.
Display unit disclosed in this invention comprises loading plate, backlight module, blooming piece and display floater.Backlight module is arranged at loading plate, and backlight module comprises LGP, light source and anti-dazzling screen.LGP has adjacent incidence surface and exiting surface.Surface of light source is to incidence surface.Anti-dazzling screen is arranged on the exiting surface, and the contiguous incidence surface of anti-dazzling screen.Anti-dazzling screen has basic unit and glue-line.Basic unit is positioned at the top of glue-line, and basic unit has the first side of contiguous light source and away from the second side of light source.Glue-line has the 3rd side of contiguous light source and away from the four side of light source.The 3rd side and first side keep the first spacing, and four side and second side keep the second spacing.Blooming piece is stacked and placed on the LGP of backlight module.Display floater is positioned on the blooming piece.
According to the disclosed display unit of the invention described above and backlight module thereof, be that the relative dual-side by glue-line keeps a spacing with the relative dual-side of basic unit respectively.So, can reduce the area that glue-line is attached at LGP, consume the problem of decline to reduce light ray energy to be absorbed by glue-line.And, also can avoid on business poor skew or because of temperature deformation occur the to overflow phenomenon of glue, to avoid causing the problem of brightness disproportionation of glue-line.
About feature of the present invention, implementation and effect, hereby cooperate accompanying drawing to be described in detail as follows as most preferred embodiment.
Description of drawings
Fig. 1 is the structure cutaway view of the display unit of one embodiment of the invention;
Fig. 2 is view under the structure of anti-dazzling screen of Fig. 1;
Fig. 3 is the structure cutaway view of the display unit of another embodiment of the present invention;
Fig. 4 is view under the structure of anti-dazzling screen of Fig. 3.
The main element symbol description
The specific embodiment
Please refer to Fig. 1 and Fig. 2, Fig. 1 is the structure cutaway view according to the display unit of the embodiment of the invention, and Fig. 2 is according to view under the structure of the anti-dazzling screen of Fig. 1.
The display unit 10 of present embodiment can apply to panel computer or liquid crystal screen, but not as limit.Display unit 10 comprises loading plate 11, backlight module 20, blooming piece 12, display floater 13 and framework 14.
Loading plate 11 can be aluminium base, to have good heat dissipation.Backlight module 20 is arranged on the loading plate 11, and backlight module 20 comprises LGP 21, light source 22 and anti-dazzling screen 23.
LGP 21 has adjacent incidence surface 211 and exiting surface 212.In addition, LGP 21 also has bottom surface 213, and bottom surface 213 and exiting surface 212 are positioned at the relative both sides of LGP 21, and bottom surface 213 is towards loading plate 11.
In addition, in the present embodiment, backlight module 20 can comprise reflector plate 24 in addition, and reflector plate 24 is arranged at the bottom surface 213 of LGP 21.In other words, reflector plate 24 is located between loading plate 11 and the LGP 21.Reflector plate 24 in order to reflected illumination to the bottom surface 213 light, to increase by the emitted light ray energy of exiting surface 212.
Glue-line 232 has the 3rd side 2323 of contiguous light source 22 and away from the four side 2324 of light source 22.The distance W 1 of first side 2311 to second side 2312 (being the width of basic unit 231) is greater than the distance W 2 (be the width of glue-line 232) of the 3rd side 2323 to four side 2324.Further, the area of basic unit 231 is greater than the area of glue-line 232, so that glue-line 232 only adheres to local basic unit 231, and glue-line 232 roughly adheres to the non-fringe region of basic unit 231.Furthermore, the 3rd side 2323 of glue-line 232 keeps the first space D 1 with the first side 2311 of basic unit 231, and the four side 2324 of glue-line 232 keeps the second space D 2 with the second side of basic unit 231 2312.So, can reduce the area that glue-line 232 is attached at LGP 21, consume the problem of decline to reduce light ray energy to be absorbed by glue-line 232.And, relative dual-side by glue-line 232 keeps spacing with the relative dual-side of basic unit 231 respectively, can avoid on business poor skew or overflow (being so-called excessive glue) by basic unit 231 ora terminalis places because of temperature deformation of glue-line 232, the problem of the brightness disproportionation that causes and light leak.
And in the present embodiment, the first above-mentioned space D 1 can be at least greater than 1mm, and the second above-mentioned space D 2 can be at least greater than 0.5mm, and the scope of the distance W 1 of first side 2311 to second side 2312 (being the width of basic unit 231) can be 3mm to 5mm.So, can avoid the generation of light leakage phenomena, make backlight module 20 have better optical effect.
In addition, blooming piece 12 is stacked and placed on the LGP 21 of backlight module 20.Blooming piece 12 can for example be diffusion sheet, brightening piece or letting alone more than two by diffusion sheet, brightening piece the stacking combined membrane that consists of.Blooming piece 12 is stacked and placed on the LGP 21, and blooming piece 12 is in order to the light that strengthens or homogenising backlight module 20 produces, to promote whole optics benefit.
Framework 14 is mounted on the ora terminalis of loading plate 11, framework 14 also has laterally extending side plate and is stacked and placed on the backlight module 20 to support display floater 13, so that display floater 13 is positioned on the blooming piece 12, make blooming piece 12 be located between display floater 13 and the LGP 21.
Please refer to Fig. 3 and Fig. 4, Fig. 3 is the structure cutaway view of according to another embodiment of the present invention display unit, and Fig. 4 is according to view under the structure of the anti-dazzling screen of Fig. 3.Because present embodiment is similar to the embodiment of Fig. 1, Fig. 2, therefore only be illustrated for different place.
The difference of the embodiment of the display unit 10a of present embodiment and Fig. 1, Fig. 2 is that the anti-dazzling screen 23a of backlight module 20a more comprises reflecting layer 233.Reflecting layer 233 can be but be not limited to have the film of reflection material or the film of white.Reflecting layer 233 can be by adhering to or the mode of printing be arranged at the 231a of basic unit, and reflecting layer 233 and glue-line 232a are positioned at phase the same side of the 231a of basic unit.In addition, the 231a of basic unit of present embodiment extends to the top of light source 22, and an end-grain cutting in reflecting layer 233 is together in the first side of the 231a of basic unit 2311a, and the other end in reflecting layer 233 has width W 3 towards the extension of glue-line 232a direction.So, so that the part reflecting layer 233 between light source 22 and incidence surface 211.Further, have the gap between light source 22 and the incidence surface 211, and at least part of reflecting layer 233 is positioned at this gap top.
Thus, the light L that originally will be gone out by the gap institute spill and leakage between light source 22 and the incidence surface 211 can be reflected layer 233 and be reflected back light inlet face 211 and enter in the LGP 21, promote whole optics benefit with the recovery utilization rate of increase light.In addition, above-mentioned width W 3 can at least greater than 1mm, so can have better reflecting effect.
According to display unit and the backlight module thereof of above-described embodiment, the relative dual-side by glue-line keeps spacing with the relative dual-side of basic unit respectively.So, can reduce the area that glue-line is attached at LGP, consume the problem of decline to reduce light ray energy to be absorbed by glue-line.And, also can avoid on business poor skew or because of temperature deformation occur the to overflow phenomenon of glue, to avoid causing the problem of brightness disproportionation of glue-line.
Although disclose the present invention with aforesaid preferred embodiment; yet it is not to limit the present invention; anyly be familiar with this operator; without departing from the spirit and scope of the present invention; therefore can do a little change and retouching, scope of patent protection of the present invention must be looked being as the criterion that the appended claim of this specification defines.
Claims (15)
1. backlight module comprises:
LGP has adjacent incidence surface and exiting surface;
Light source is towards this incidence surface; And
Anti-dazzling screen, be arranged on this exiting surface, and contiguous this incidence surface of this anti-dazzling screen, this anti-dazzling screen has basic unit and glue-line, this glue-line is between this basic unit and this incidence surface, and this basic unit has the first side of contiguous this light source and away from the second side of this light source, and this glue-line has the 3rd side of contiguous this light source and away from the four side of this light source, the 3rd side and this first side keep one first spacing, and this four side and this second side keep one second spacing.
2. backlight module as claimed in claim 1, wherein the distance of this first side to this second side is greater than the distance of the 3rd side to this four side.
3. backlight module as claimed in claim 1, wherein the area of this basic unit is greater than the area of this glue-line.
4. backlight module as claimed in claim 1, wherein the scope of this first spacing is at least greater than 1mm.
5. backlight module as claimed in claim 1, wherein the scope of this second spacing is at least greater than 0.5mm.
6. backlight module as claimed in claim 1, wherein the scope of the distance of this first side to this second side is 3mm to 5mm.
7. backlight module as claimed in claim 1, wherein this anti-dazzling screen comprises the reflecting layer in addition, and this reflecting layer and this glue-line are positioned at phase the same side of this basic unit, and this at least part of reflecting layer is between this light source and this incidence surface.
8. display unit comprises:
Loading plate;
Backlight module is arranged on this loading plate, comprises:
LGP has adjacent incidence surface and exiting surface;
Light source is towards this incidence surface; And
Anti-dazzling screen, be arranged on this exiting surface, and contiguous this incidence surface of this anti-dazzling screen, this anti-dazzling screen has basic unit and glue-line, this glue-line is between this basic unit and this incidence surface, and this basic unit has the first side of contiguous this light source and away from the second side of this light source, and this glue-line has the 3rd side of contiguous this light source and away from the four side of this light source, the 3rd side and this first side keep one first spacing, and this four side and this second side keep one second spacing;
Blooming piece is stacked and placed on this LGP of this backlight module; And
Display floater is positioned on this blooming piece.
9. display unit as claimed in claim 8, wherein the distance of this first side to this second side is greater than the distance of the 3rd side to this four side.
10. display unit as claimed in claim 8, wherein the area of this basic unit is greater than the area of this glue-line.
11. display unit as claimed in claim 8, wherein the scope of this first spacing is at least greater than 1mm.
12. display unit as claimed in claim 8, wherein the scope of this second spacing is at least greater than 0.5mm.
13. display unit as claimed in claim 8, wherein the scope of the distance of this first side to this second side is 3mm to 5mm
14. display unit as claimed in claim 8, wherein this anti-dazzling screen comprises the reflecting layer in addition, and this reflecting layer and this glue-line are positioned at phase the same side of this basic unit, and this at least part of reflecting layer is between this light source and this incidence surface.
15. display unit as claimed in claim 8 also comprises framework, is mounted on the ora terminalis of this loading plate, this display floater is stacked and placed on this framework.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101141634A TWI470323B (en) | 2012-11-08 | 2012-11-08 | Display device and back light module thereof |
| TW101141634 | 2012-11-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103032779A true CN103032779A (en) | 2013-04-10 |
Family
ID=48019975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100198499A Pending CN103032779A (en) | 2012-11-08 | 2013-01-18 | Display device and backlight module thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103032779A (en) |
| TW (1) | TWI470323B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299542A (en) * | 2015-09-29 | 2016-02-03 | 苏州达方电子有限公司 | Backlight module |
| CN105511145A (en) * | 2016-02-03 | 2016-04-20 | 京东方科技集团股份有限公司 | Display device and fabrication method thereof |
| CN109493731A (en) * | 2018-12-19 | 2019-03-19 | 友达光电股份有限公司 | Backlight module |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050105013A1 (en) * | 2003-11-14 | 2005-05-19 | Taiji Nakagawa | Liquid crystal module |
| CN1852626A (en) * | 2006-04-05 | 2006-10-25 | 友达光电股份有限公司 | Double-displaying organic electric-exciting luminous pane |
| CN101271223A (en) * | 2007-12-10 | 2008-09-24 | 普胜科技电子（昆山）有限公司 | Double-layer combined optical film piece |
| CN101271222A (en) * | 2007-12-10 | 2008-09-24 | 普胜科技电子（昆山）有限公司 | Three-layer combined optical film piece |
| CN102062972A (en) * | 2010-11-12 | 2011-05-18 | 友达光电股份有限公司 | Plane display structure and manufacturing method thereof |
| US20120189829A1 (en) * | 2011-01-20 | 2012-07-26 | Nitto Denko Corporation | Pressure-sensitive adhesive tape |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004076917A1 (en) * | 2003-01-29 | 2004-09-10 | Mitsubishi Rayon Co., Ltd. | Area light source |
| JP2008175926A (en) * | 2007-01-17 | 2008-07-31 | Hitachi Displays Ltd | Liquid crystal display module |
| JP5287415B2 (en) * | 2009-03-27 | 2013-09-11 | カシオ計算機株式会社 | Backlit LCD module |
-
2012
- 2012-11-08 TW TW101141634A patent/TWI470323B/en not_active IP Right Cessation
-
2013
- 2013-01-18 CN CN2013100198499A patent/CN103032779A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050105013A1 (en) * | 2003-11-14 | 2005-05-19 | Taiji Nakagawa | Liquid crystal module |
| CN1852626A (en) * | 2006-04-05 | 2006-10-25 | 友达光电股份有限公司 | Double-displaying organic electric-exciting luminous pane |
| CN101271223A (en) * | 2007-12-10 | 2008-09-24 | 普胜科技电子（昆山）有限公司 | Double-layer combined optical film piece |
| CN101271222A (en) * | 2007-12-10 | 2008-09-24 | 普胜科技电子（昆山）有限公司 | Three-layer combined optical film piece |
| CN102062972A (en) * | 2010-11-12 | 2011-05-18 | 友达光电股份有限公司 | Plane display structure and manufacturing method thereof |
| US20120189829A1 (en) * | 2011-01-20 | 2012-07-26 | Nitto Denko Corporation | Pressure-sensitive adhesive tape |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299542A (en) * | 2015-09-29 | 2016-02-03 | 苏州达方电子有限公司 | Backlight module |
| CN105511145A (en) * | 2016-02-03 | 2016-04-20 | 京东方科技集团股份有限公司 | Display device and fabrication method thereof |
| CN109493731A (en) * | 2018-12-19 | 2019-03-19 | 友达光电股份有限公司 | Backlight module |
| CN109493731B (en) * | 2018-12-19 | 2020-12-08 | 友达光电股份有限公司 | Backlight module |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201418842A (en) | 2014-05-16 |
| TWI470323B (en) | 2015-01-21 |
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Application publication date: 20130410 |