CN102878525B - Prism film, side-light backlight module and liquid crystal indicator - Google Patents
Prism film, side-light backlight module and liquid crystal indicator Download PDFInfo
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- CN102878525B CN102878525B CN201210357153.2A CN201210357153A CN102878525B CN 102878525 B CN102878525 B CN 102878525B CN 201210357153 A CN201210357153 A CN 201210357153A CN 102878525 B CN102878525 B CN 102878525B
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 16
- 230000001681 protective effect Effects 0.000 claims description 8
- 239000000758 substrate Substances 0.000 claims description 8
- 239000011347 resin Substances 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 230000004888 barrier function Effects 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 238000009792 diffusion process Methods 0.000 claims description 5
- 230000008033 biological extinction Effects 0.000 claims description 3
- 150000002894 organic compounds Chemical class 0.000 claims description 3
- 230000000644 propagated effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 9
- 238000005516 engineering process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000004417 polycarbonate Substances 0.000 description 3
- 239000011147 inorganic material Substances 0.000 description 2
- 229910010272 inorganic material Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011368 organic material Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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Abstract
The invention discloses a kind of prism film, side-light backlight module and liquid crystal indicator, relate to field of liquid crystal, by arranging light shield layer at prism film towards the side of side light source, light reflection by side light source entrance prism film side can be gone out, thus the obvious light leakage phenomena of the side edge improving prism film, improve the display effect of display panel.The prism film of the embodiment of the present invention, at least one side of described prism film is provided with light shield layer.
Description
Technical field
The present invention relates to field of liquid crystal, particularly relate to a kind of prism film, side-light backlight module and liquid crystal indicator.
Background technology
In recent years, increasingly mature along with photoelectric display technology, the application of flat panel display equipment is more and more extensive.The wherein feature of liquid crystal flat-panel display, light efficiency high and low radiation long based on its life-span, low-power consumption, instead of traditional radiographic tube display apparatus gradually and forms research direction in order to display device product main flow in recent years.
Liquid crystal indicator is formed primarily of display panel and backlight module, and backlight provides the illumination of enough brightness and high uniformity for display panel, ensures the display quality of display.According to the difference of the distributing position of light source in backlight module, be divided into side-light type and straight-down negative two kinds.Direct-light-type backlight needs many light sources, and therefore power consumption is high, and heat dissipation problem is serious.Therefore, most panel product production firms abandon the use of this kind of light source, then drop into research and development side-light type back light.
But inventor finds that in R&D process prior art at least exists following defect: because side-light type back light is positioned at the side of backlight module, inevitably have light incides prism film side from side light source, and then obvious light leakage phenomena can be produced at the side surface place of prism film, the display effect of counter plate has an impact.
Summary of the invention
Embodiments of the invention technical matters to be solved is to provide a kind of side-light backlight module and liquid crystal indicator, can prevent light from inciding the side of prism film from side light source, thus improve light leakage phenomena, improves the display effect of display panel.
For solving the problems of the technologies described above, embodiments of the invention adopt following technical scheme:
The invention provides a kind of prism film, at least one side of described prism film is provided with light shield layer.
Also be provided with substrate layer between described light shield layer and described prism film, described light shield layer is also provided with protective seam away from light shield layer on the surface of prism film on the side of described side light source.Described light shield layer is white high reverse--bias ink layer or black height extinction organic resin layer, and described substrate layer is black organic resin layer, and described protective seam is transparent organic compound layer.
In addition, the present invention also provides a kind of side-light backlight module, comprising: light guide plate and be arranged on the side light source of described light guide plate side, and also comprises and be arranged on described light guide plate upper surface prism film as above.
Described light guide plate lower surface is provided with reflective coating, is provided with Diffusion barrier layer between described light guide plate and described prism film.
The shape of described light guide plate is plate shaped, slope shape or wedge shape.
In addition, the present invention also provides a kind of liquid crystal indicator, comprises side-light backlight module as above.
The side-light backlight module of the embodiment of the present invention and liquid crystal indicator, by arranging light shield layer at prism film towards side light source side, light reflection by side light source entrance prism film side can be gone out, thus improve light leakage phenomena, improve the display effect of display panel.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is one of structural representation of side-light backlight module in the embodiment of the present invention;
Fig. 2 is the structural representation two of side-light backlight module in the embodiment of the present invention;
Fig. 3 is the structural representation three of side-light backlight module in the embodiment of the present invention;
Fig. 4 is the schematic diagram that in the embodiment of the present invention, prism film arranges light shield layer on the side of side light source.
Description of reference numerals:
1, side light source; 2, light source drives base; 3, reflective coating; 4, prism film; 5, Diffusion barrier layer; 6, light guide plate; 7, protective seam; 8, light shield layer; 9, substrate layer.
Embodiment
The embodiment of the present invention provides a kind of side-light backlight module and liquid crystal indicator, the light reflection of side light source entrance prism film side can be gone out, thus improve light leakage phenomena, improves the display effect of display panel.
In below describing, in order to illustrate instead of in order to limit, propose the detail of such as particular system structure, interface, technology and so on, understand the present invention thoroughly to cut.But, it will be clear to one skilled in the art that and also can realize the present invention in other embodiment not having these details.In other situation, omit the detailed description to well-known device, circuit and method, in order to avoid unnecessary details hinders description of the invention.
Below in conjunction with following accompanying drawing, the embodiment of the present invention is described in detail.
The present embodiment provides a kind of prism film, as shown in Figure 1, at least one side of prism film is provided with light shield layer 8, for being gone out by the light reflection of side light source entrance prism film side.Further, between light shield layer 8 and prism film, being also provided with substrate layer 9, for maintaining the stable of light shield layer, preventing light shield layer 8 relative sliding, the light penetrating light shield layer 8 of minority can also be absorbed, ensure do not have light to enter from the side in prism film.Light shield layer 8 is also provided with protective seam 7 away from light shield layer 8 on the surface of prism film on the side of side light source, plays the effect of protection light shield layer 8.
Further, light shield layer 8 is white high reverse--bias ink layer or black height extinction organic resin layer, and the material that also can have higher reflective or high light absorptive by other is formed; Substrate layer 9 is black organic resin layer, also can be formed by other lighttight organic or inorganic materials with high adherence; Protective seam 7 is transparent organic compound layer.Also can be formed by other transparent organic or inorganic materials, in the embodiment of the present invention, not limit the material of light shield layer 8, substrate layer 9 and protective seam 7.
The prism film of the embodiment of the present invention, by being provided with light shield layer at least one side of prism film, can going out the light reflection by side light source entrance prism film side, thus improving light leakage phenomena, improves the display effect of display panel.
In addition, the embodiment of the present invention also provides a kind of side-light backlight module, comprise: light guide plate 6, be arranged on light guide plate 6 side side light source 1 and be arranged on light guide plate 6 upper surface prism film 4 as above, prism film 4 is provided with light shield layer 8 on the side of side light source 1, for the light of reflection side light source 1 entrance prism film 4 side.Below in conjunction with Fig. 1 and Fig. 2, light transmition mode in backlight module is further explained.Light guide plate 6 have employed acrylic or PC (Polycarbonate, the polycarbonate) sheet material of optical grade, and further, light guide plate 6 lower surface is provided with reflective coating 3, is provided with Diffusion barrier layer 5 between light guide plate 6 and prism film 4.Reflective coating 3 makes the light penetrating light guide plate 6 lower surface can return to light guide plate to propagate, improve light source utilization ratio.And Diffusion barrier layer 5 makes to be uniformly distributed from the light of light guide plate outgoing.
After the light sent when side light source 1 enters light guide plate 6, light can carry out reflecting and reflect in light guide plate 6, and light can past all directions spread.So for prism film 4, light can be incident from the lower surface of prism film 4, also can from prism film 4 towards the incident sideways of side light source 1.Be used for providing brightness for display panel from the light of prism film 4 lower surface incidence, this some light is helpful; And from prism film 4 towards the light of the incident sideways of side light source 1, this some light can be propagated along prism direction in prism film 4, and finally can produce bright spot on prism film 4, i.e. light leakage phenomena.Therefore, as shown in Figure 4, prism film 4 arranges light shield layer 8 on the side of side light source 1, is gone out by the light reflection of side light source 1 entrance prism film 4 side, thus ensure that and do not have light at prism film 4 towards the side of side light source 1.As one embodiment of the present invention, as shown in Figure 1, the shape of light guide plate 6 is plate shaped.Side is provided with light shield layer 8 to prism film 4, and reflecting the light of coming through Wedge shape light conduction board 6 can be reflected, and therefore light be there will be no in prism film 4 side.As another embodiment of the present invention, as shown in Figure 2, the shape of light guide plate 6 is slope shape, and the upper surface of light guide plate 6 comprises and being made up of two planes and an inclined-plane, and two planes couple together by inclined-plane.In addition, the shape of light guide plate 6 can also be light guide plate shape conventional in the field of backlights such as wedge shape, in this no limit.
Concrete, described side light source 1 can be backlight conventional in the field of backlights such as light emitting diode or cold-cathode fluorescence lamp, is not construed as limiting at this kind to side light source 1, quantity and arrangement mode.
The side-light backlight module of the embodiment of the present invention, by arranging light shield layer at prism film towards side light source side, can go out the light reflection by side light source entrance prism film side, thus improving light leakage phenomena, improves the display effect of display panel.
Further, also comprise in backlight module: light source drives base 2, is arranged on the side of side light source 1 face away from light guide 6, for providing electric current for side light source 1.
In addition, the embodiment of the present invention also provides a kind of liquid crystal indicator, comprises side-light backlight module as above.Described liquid crystal indicator can be: any product or parts with Presentation Function such as mobile phone, panel computer, televisor, display, notebook computer, digital album (digital photo frame), navigating instrument.
The side-light backlight module of the embodiment of the present invention and liquid crystal indicator, by arranging light shield layer at prism film towards side light source side, light reflection by side light source entrance prism film side can be gone out, thus improve light leakage phenomena, improve the display effect of display panel.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with the protection domain of claim.
Claims (8)
1. a prism film, it is characterized in that, described prism film is provided with multiple prism, the bearing of trend of described prism is perpendicular to side light source place plane, at least one side of described prism film is provided with light shield layer, and described light shield layer stops the directly incident light of described side light source to be propagated along the bearing of trend of described prism in described prism film;
Also substrate layer is provided with between described light shield layer and described prism film;
Described light shield layer is also provided with protective seam away from the surface of prism film.
2. prism film according to claim 1, is characterized in that, described light shield layer is white high reverse--bias ink layer or black height extinction organic resin layer.
3. prism film according to claim 1, is characterized in that, described substrate layer is black organic resin layer.
4. prism film according to claim 1, is characterized in that, described protective seam is transparent organic compound layer.
5. a side-light backlight module, comprising: light guide plate and be arranged on the side light source of described light guide plate side, it is characterized in that, and also comprises and be arranged on the prism film of described light guide plate upper surface as described in any one of claim 1-4.
6. side-light backlight module according to claim 5, is characterized in that, described light guide plate lower surface is provided with reflective coating, is provided with Diffusion barrier layer between described light guide plate and described prism film.
7. side-light backlight module according to claim 5, is characterized in that, the shape of described light guide plate is plate shaped, slope shape or wedge shape.
8. a liquid crystal indicator, is characterized in that, comprises the side-light backlight module described in any one of claim 5-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210357153.2A CN102878525B (en) | 2012-09-21 | 2012-09-21 | Prism film, side-light backlight module and liquid crystal indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210357153.2A CN102878525B (en) | 2012-09-21 | 2012-09-21 | Prism film, side-light backlight module and liquid crystal indicator |
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| Publication Number | Publication Date |
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| CN102878525A CN102878525A (en) | 2013-01-16 |
| CN102878525B true CN102878525B (en) | 2016-03-30 |
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| CN201210357153.2A Expired - Fee Related CN102878525B (en) | 2012-09-21 | 2012-09-21 | Prism film, side-light backlight module and liquid crystal indicator |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103292246B (en) * | 2013-06-04 | 2016-08-24 | 北京京东方光电科技有限公司 | A kind of blooming piece, backlight module and display device |
| CN104093059B (en) * | 2014-06-30 | 2018-04-03 | 广东九联科技股份有限公司 | A kind of a screen double aobvious display devices and its method |
| CN105093395A (en) * | 2015-08-25 | 2015-11-25 | 靖江市永盛光电科技有限公司 | Diffusion film incident light reflection side noise reduction structure |
| CN105093396A (en) * | 2015-08-25 | 2015-11-25 | 靖江市永盛光电科技有限公司 | Diffusion film light incidence side noise reduction structure |
| CN108205219A (en) * | 2018-01-16 | 2018-06-26 | 江苏冠达通电子科技有限公司 | Light guide board display device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3371052B2 (en) * | 1995-03-30 | 2003-01-27 | 株式会社エンプラス | Sidelight type surface light source device |
| CN1742179A (en) * | 2003-01-29 | 2006-03-01 | 三菱丽阳株式会社 | Surface light source device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008056463A1 (en) * | 2006-11-07 | 2008-05-15 | Sharp Kabushiki Kaisha | Light source unit and display |
| US20120249885A1 (en) * | 2009-12-23 | 2012-10-04 | Sharp Kabushiki Kaisha | Lighting device, display device and television receiver |
| JP5284489B2 (en) * | 2009-12-28 | 2013-09-11 | シャープ株式会社 | Planar illumination device and display device including the same |
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2012
- 2012-09-21 CN CN201210357153.2A patent/CN102878525B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3371052B2 (en) * | 1995-03-30 | 2003-01-27 | 株式会社エンプラス | Sidelight type surface light source device |
| CN1742179A (en) * | 2003-01-29 | 2006-03-01 | 三菱丽阳株式会社 | Surface light source device |
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| CN102878525A (en) | 2013-01-16 |
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Granted publication date: 20160330 |