CN101266315A - Polarization plate, its preparation method and display apparatus using same - Google Patents
Polarization plate, its preparation method and display apparatus using same Download PDFInfo
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- CN101266315A CN101266315A CNA2008100980305A CN200810098030A CN101266315A CN 101266315 A CN101266315 A CN 101266315A CN A2008100980305 A CNA2008100980305 A CN A2008100980305A CN 200810098030 A CN200810098030 A CN 200810098030A CN 101266315 A CN101266315 A CN 101266315A
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- polarizer
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Abstract
The invention discloses a polarization plate, a manufacturing method thereof and a display unit using the polarization plate. The polarization plate is used for the display unit, comprising a brightening membrane, a diffused layer formed on one surface of the brightening membrane; and a polarization membrane formed on another surface of the brightening membrane. The brightening membrane, the diffused layer and the polarization membrane are combined to form a single polarization plate to greatly increase the brightness and contrast of the display unit. In addition two modules respectively for changing the optical path and light polarity are combined together to reduce the number of the optical membranes of the backlight module. Thus the display unit has less volume and weight and better optical character, compared with the prior display unit. The embodiment simplified the structure of the display unit and effectively increases the optical character.
Description
Technical field
The present invention relates to a kind of display device, particularly relate to the display device of a kind of Polarizer, its manufacture method and use Polarizer with Polarizer.
Background technology
The display device on plane has been widely used in the various electronic goods.Liquid crystal indicator because of power saving, driving voltage is low and make and easyly extensively favored.Wherein, liquid crystal indicator by backlight module provide light to the display panel with display frame.
In general, backlight module has a light emitting source and a plurality of blooming piece usually.Light emitting source is in order to provide a light, and blooming piece is then in order to improve the optical characteristics of light.Blooming piece for example is prism diaphragm, light leading diaphragm, reflection diaphragm, brightening film sheet and diffusion barrier sheet or the like.Blooming piece is in order to reflect light, guide, assemble and diffusion.Yet, increase the degree of difficulty that blooming piece has increased each blooming piece combination, also increased the time of backlight module assembling.In addition, the hundreds of at least μ m of the thickness of each blooming piece, more blooming piece also increases the thickness and the weight of display device.Yet, as if the blooming piece deficiency, can reduce the optical characteristics of light, for example be brightness and the contrast that reduces light, and influence the display quality of display device picture.Therefore, the thickness that how to reduce display device does not influence the display quality of display frame again, is the direction that the display device industry is devoted to study.
Summary of the invention
The technical problem underlying that the present invention solves is, the display device of a kind of Polarizer, its manufacture method and use Polarizer is provided, with single Polarizer in conjunction with light polarizing film, brightness enhancement film and diffusion layer, with the thickness of minimizing display device, and the optical characteristics of lifting display device.
For achieving the above object, the invention discloses a kind of Polarizer, be applied in the display device, this Polarizer comprises: a brightness enhancement film; One diffusion layer is formed at a surface of this brightness enhancement film; And a light polarizing film, be located at another surface of this brightness enhancement film.
This diffusion layer is a Bewildering resistance layer.
This brightness enhancement film is a reflection-type polarisation brightness enhancement film.
The thickness of this diffusion layer is less than or equal to 50 μ m.
The thickness of this diffusion layer is between 5 to 20 μ m.
The optics haze value of this Polarizer is less than about 75%.
This light polarizing film comprises a polarisation basement membrane and at least two diaphragms that lay respectively at the apparent surface of this polarisation basement membrane.
The optics haze value of this Polarizer is between 40% to 60%.
Described Polarizer further comprises an adhesion layer, between this brightness enhancement film and this light polarizing film.
The invention also discloses a kind of display device, comprising:
Polarizer; One display panel comprises one first substrate, one second substrate and a liquid crystal layer, and wherein, this liquid crystal layer is folded between this first substrate and this second substrate; And a backlight module, this backlight module is positioned at a side of this display panel, and wherein, this Polarizer is arranged between this backlight module and this display panel.
The invention also discloses a kind of polarizing plate making method, comprising: a brightness enhancement film is provided; Form a diffusion layer on this brightness enhancement film; One light polarizing film is provided; And this brightness enhancement film of this light polarizing film and this diffusion layer of tool is combined into a single thin plate.
This diffusion layer is a Bewildering resistance layer.
This brightness enhancement film is a reflection-type polarisation brightness enhancement film.
This diffusion layer is formed on this brightness enhancement film in the mode of wet type coating.
In the described manufacture method, be combined into the mode of this single thin plate to fit.
The mode of this applying comprises that forming an adhesion layer fits this brightness enhancement film of this light polarizing film and this diffusion layer of tool.
The display device of the disclosed Polarizer of the above embodiment of the present invention, its manufacture method and use Polarizer is combined into single Polarizer with light polarizing film, brightness enhancement film and diffusion layer, significantly promotes the brightness and the contrast of display device whereby.Moreover the assembly that present embodiment will change opticpath and both different purposes of light polarity combines, and reduces the quantity of its blooming piece of backlight module of present embodiment whereby.Therefore, the display device of present embodiment compare with existing display device have smaller volume, lower weight and better optical characteristics.The embodiment of the invention is simplified the structure of display device and is promoted its optical characteristics effectively.
Description of drawings
Fig. 1 is the synoptic diagram according to the display device of preferred embodiment of the present invention.
Fig. 2 is the synoptic diagram according to the Polarizer of preferred embodiment of the present invention.
Fig. 3 A, 3B are respectively the synoptic diagram of testing the Polarizer of one first control group and first experimental group according to the present invention.
Fig. 4 A, 4B are respectively the synoptic diagram of testing the Polarizer of one second control group and second experimental group according to the present invention.
Fig. 5 A to Fig. 5 C is the synoptic diagram of manufacture method of the Polarizer of Fig. 2 in regular turn.
Wherein, Reference numeral:
100: display device 101,300: display panel
Substrate 150 in 130: the second: liquid crystal layer
Light polarizing film 190 in 170: the first: backlight module
190 ': light 210,230,250: Polarizer
211: the second light polarizing film 211a, 211c: Triafol T layer
211b: polyvinyl alcohol layer 213: brightness enhancement film
215: diffusion layer 217,219: the surface of brightness enhancement film
Embodiment
The present invention discloses a kind of Polarizer, its manufacture method and uses the display device of Polarizer, mainly be that a Polarizer is set on the substrate of display device, and this Polarizer combines the function of blast and diffusion simultaneously, to reduce diffusion barrier sheet and the brightening film sheet usage quantity in the backlight module, reduce the thickness of backlight module; And after thin backlight module and the display panel assembling, the integral thickness of display device is reduced.Moreover the blast that has proposed by the invention is compared with traditional display device structure with the Polarizer of diffusion function, has higher brightness and correlative value, has improved the optical characteristics of display device.
The present invention will be described below to utilize preferred embodiment, however the content that embodiment proposed, and only the usefulness for illustrating not is the usefulness as limit protection domain of the present invention.And the accompanying drawing of embodiment omits unnecessary assembly, in order to clear demonstration technical characterstic of the present invention.
Please be simultaneously with reference to Fig. 1 and Fig. 2, Fig. 1 is the synoptic diagram according to the display device of preferred embodiment of the present invention, Fig. 2 is the synoptic diagram according to the Polarizer of preferred embodiment of the present invention.As shown in Figure 1, display device 100 comprises one first substrate 110, one second substrate 130, a liquid crystal layer 150, one first light polarizing film 170 and a Polarizer 210.Relative first substrates 110 of second substrate 130 are provided with, and liquid crystal layer 150 is folded in 130 of first substrate 110 and second substrates to form a display panel 101.First light polarizing film 170 is arranged on the outside surface 110 ' of first substrate 110.As shown in Figure 2, Polarizer 210 comprises one second light polarizing film 211, a brightness enhancement film 213 and a diffusion layer 215, and Polarizer 210 is arranged on the outside surface 130 ' of second substrate 130 as shown in Figure 1, in this preferred embodiment, second light polarizing film 211 contacts with the outside surface 130 ' of second substrate 130.And at least two diaphragms that first light polarizing film 170 or second light polarizing film 211 include the polarisation basement membrane and lay respectively at the apparent surface of polarisation basement membrane; in one embodiment; diffusion layer 215 preferably has anti-dizzy (anti-glare) function; or diffusion layer 215 is essentially a Bewildering resistance layer; diffusion layer 215 best tool rough surfaces or be added with diffusion particle in inside are in order to improve the light source benefit of light 190 '.
Among Fig. 1, display device 100 also comprises a backlight module 190 of a side that is arranged at display panel 101, and backlight module 190 relative Polarizers 210 are provided with.Wherein, Polarizer 210 is arranged between the backlight module 190 and second substrate 130.In other words, the structure of the display device among Fig. 1 100 is first light polarizing film 170, first substrate 110, liquid crystal layer 150, second substrate 130, Polarizer 210 and backlight module 190 from top to bottom in regular turn.Wherein Polarizer 210 comprises second light polarizing film 211, brightness enhancement film 213 and diffusion layer 215, and first substrate 110 of display device 100 and second substrate 130 for example are respectively a colored optical filtering substrates and a transistor array substrate.The light 190 ' that backlight module 190 is provided is via Polarizer 210, second substrate 130, by liquid crystal layer 150, arrive first substrate 110 and first light polarizing film 170 again, wherein the liquid crystal molecule of liquid crystal layer 150 is along with the voltage swing of the pixel electrode that puts on transistor array substrate changes its arrangement mode, to change the polarization direction by the light 190 ' of liquid crystal layer 150.Because the Polarizer 210 of present embodiment is integrated existing light polarizing film 211, brightness enhancement film 213 and diffusion layer 215 are in single optical sheet, except the function of existing light polarizing film also has blast and diffusion function simultaneously, therefore the backlight module 190 of present embodiment can not need use the backlight module of diffusion barrier sheet or more existing display device to reduce by a diffusion barrier sheet at least, for example existing backlight module may have last diffusion barrier sheet and following diffusion barrier sheet simultaneously, the backlight module 190 of present embodiment then only need have following diffusion barrier sheet (figure does not show) and not need diffusion barrier sheet, can replace the function of diffusion barrier sheet because of the diffusion layer in the Polarizer 210 215.In a preferred embodiment, the thickness of diffusion layer 215 is less than or equal to 50 μ m, preferably between 5 to 20 μ m.And the employed diffusion barrier sheet of existing backlight module needs diffusion layer is formed on the substrate of polymerizable material, substrate for example is polycarbonate (polycarbonate, PC) or polyethylene terephthalate (Poly (ethylene terephthalate), PET), make existing diffusion barrier sheet thickness about 200 μ m even thicker, therefore the structure of using Polarizer 210 of the present invention not only can reduce employed diffusion barrier sheet quantity and thickness in the backlight module 190, more can reduce the integral thickness of assembling rear indicator 100, with above-mentioned preferred embodiment, the thickness of display device 100 at least attenuate 150 μ m.
Below for the display device with Polarizer 210 100 of preferred embodiment according to the present invention under the different optical haze value, carry out the test of brightness and contrast with the structure (a plurality of blooming pieces being set) of conventional display device in backlight module.Part of test results is listed in table one～table three.In addition; below an equal polyvinyl alcohol (PVA) (Poly Vinyl Alcohol to belong to the polarisation basement membrane; PVA) layer 211b is folded in two-layer Triafol T layer (the Triacetyl Cellulose that belongs to diaphragm; TAC) between 211a and the 211c to constitute second light polarizing film 211; carry out related experiment, but not as limit.
Experiment one
In experiment one, carry out the test of brightness and contrast at the structure of Polarizer.Please refer to 3A, 3B figure, it is respectively the synoptic diagram of testing the Polarizer of one first control group and first experimental group according to the present invention.Be noted that the employed backlight module of first experimental group reduces diffusion barrier sheet on a slice (figure does not show) than the employed backlight module of first control group.Wherein as shown in Figure 3A, the Polarizer that is arranged at first control group of display panel 300 only comprises second light polarizing film 211.Shown in Fig. 3 B, the Polarizer 230 of first experimental group has increased a diffusion layer 215 (tool resists dizzy and high diffusion function) on one second light polarizing film 211, promptly, the backlight module that the difference of first experimental group and first control group is first experimental group reduces diffusion barrier sheet on a slice than the backlight module of first control group, and has diffusion layer 215 on second light polarizing film 211 of the Polarizer 230 of first experimental group.The Polarizer 230 of first experimental group is with three optics haze values 60%, 74%, 88% and the contrast of first control group, and its experiment the results are shown in table one.
Table one
According to experimental result (table one) as can be known, Polarizer 230 is 60% o'clock at the optics haze value, and its bright attitude brightness is higher than second light polarizing film 211 of first control group.And Polarizer 230 is 74% and 88% o'clock at the optics haze value, and its bright attitude brightness, dark attitude brightness and contrast are all poorer than first control group.In Table 1, brightness increment rate and contrast increment rate correspond to the bright attitude brightness of first experimental group and the number percent that is increased is compared in the bright attitude brightness of first control group, and the number percent that is increased is compared in both contrasts.According to table one as can be known, first experimental group is 60% o'clock at the optics haze value only, and its brightness increment rate only is positive 5.1%.The brightness of all the other first experimental group is all poorer than first control group with contrast.Therefore, increase the Polarizer 230 of diffusion layer 215 on second light polarizing film 211, it is poorer that its optical characteristics more only had second light polarizing film 211.
In addition, please refer to his 4A, 4B, it is respectively the synoptic diagram of testing the Polarizer of one second control group and second experimental group according to the present invention.The backlight module of second experimental group reduces diffusion barrier sheet on a slice (figure does not show) than the backlight module of second control group.Wherein shown in Fig. 4 A, the Polarizer 250 of second control group comprises that second light polarizing film 211 and a brightness enhancement film 213 are arranged on second light polarizing film 211.Shown in Fig. 4 B, second experimental group is the Polarizer 210 of preferred embodiment of the present invention, Polarizer 210 is except second light polarizing film 211 and brightness enhancement film 213, also relative second control group increases diffusion layer 215, promptly, the difference of second experimental group and second control group is the backlight module of second experimental group than diffusion barrier sheet on backlight module minimizing a slice of second control group, and has diffusion layer 215 on second light polarizing film 211 of the Polarizer 230 of second experimental group.The Polarizer 210 of second experimental group is with two optics haze values 60%, 74% and the contrast of second control group, and its experiment the results are shown in table two.
Table two
According to experimental result (table two) as can be known, Polarizer 210 is 60% and 74% o'clock at the optics haze value, and its bright attitude brightness, dark attitude brightness and contrast all are higher than second control group.The optical characteristics of Polarizer 210 is 60% and 74% o'clock at the optics haze value according to table two as can be known, and its brightness increment rate and contrast increment rate all are better than second control group.
By table one and table two as can be known, only diffusion layer is formed at the Polarizer of second light polarizing film, for example Polarizer 230, and it is poorer that its optical characteristics does not have the Polarizer of diffusion layer.The Polarizer 210 of right preferred embodiment of the present invention is incorporated into diffusion layer 215 and brightness enhancement film 213 on second light polarizing film 211, and its optical characteristics is better than other Polarizer, can increase the optical characteristics of Polarizer effectively.
Experiment two
By experiment one as can be known, Polarizer is under different optics haze values, and its optical characteristics is slightly different.Therefore, the Polarizer 210 of a plurality of second experimental group structures with different mist degrees is proposed to carry out the dependence test of brightness and correlative value in the experiment two.Wherein, with the control group of 250 structures of the Polarizer shown in Fig. 4 A (having brightness enhancement film 213) as this experiment.With above-mentioned, the backlight module of experimental group reduces diffusion barrier sheet on a slice (figure does not show) than the backlight module of control group.Experimental result series is in table three.
Table three
According to experimental result (table three) as can be known, the Polarizer 210 of present embodiment, when the optics haze value of Polarizer 210 between about 10% to 75%, its bright attitude brightness all is higher than Polarizer 250.The optics haze value of Polarizer 210 in about scope of 10% to 75%, its optical characteristics preferably at the optics haze value between 40% to 60%.Moreover the total brightness of the Polarizer 210 of present embodiment promotes about 9% to 46% than the Polarizer 250 of control group, and the Polarizer 250 of the contrast relative comparison group of Polarizer 210 promotes about 2% to 15%.The brightness and the contrast of display device 100 are promoted all effectively.
The invention also discloses a kind of manufacture method of Polarizer, its content only for illustrating, can do suitably to revise and change according to practical application by detailed step, and the technological means of other enforcement also can be applicable to the present invention to make Polarizer of the present invention.
Please refer to Fig. 5 A to Fig. 5 C, it is the synoptic diagram of manufacture method of the Polarizer of Fig. 2 in regular turn.
Shown in Fig. 5 A, at first provide a brightness enhancement film 213.Brightness enhancement film 213 is in order to promote the brightness of light 190 ' (as shown in Figure 1).Brightness enhancement film 213 is preferably a reflection-type polarisation brightness enhancement film, for example the DBEF of 3M (Dual Brightness Enhancement Film), the perhaps APCF of Nitto Denko (Advanced Polarization Conversion Film).Reflection-type polarisation brightness enhancement film can increase the benefit of light 190 ' with repeatedly polarization of reflected light.
Shown in Fig. 5 A, form a diffusion layer 215 on brightness enhancement film 213 afterwards.Wherein, diffusion layer 215 is formed on the surface 217 of brightness enhancement film 213 in the mode of wet type coating.Diffusion layer 215 preferable tool rough surfaces or be added with diffusion particle in inside are in order to disperse light 190 ' uniformly.Among one embodiment, the thickness of diffusion layer 215 is less than or equal to 50 μ m.Preferably, the thickness of diffusion layer 215 is between 5 to 20 μ m.
Then shown in Fig. 5 B, provide second light polarizing film among Fig. 2 211 structures.Second light polarizing film 211 comprises Triafol T layer (as diaphragm) 211a, 211c and is arranged at a polyvinyl alcohol layer (as the polarisation basement membrane) 211b between Triafol T layer 211a and the 211c.Polyvinyl alcohol layer 211b is with so that light 190 ' polarization, and Triafol T layer 211a and 211b are then in order to protection polyvinyl alcohol layer 211b.
Afterwards, shown in Fig. 5 C, the brightness enhancement film 213 and second light polarizing film 211 of tool diffusion layer 215 among Fig. 5 A is combined into single thin plate, a Polarizer 210, its mode that is combined into single thin plate is the method by fitting for example.Wherein second light polarizing film 211 is formed at brightness enhancement film 213 another surface 219 with respect to surface 217, in a preferred embodiments, also further comprise and form an adhesion layer (figure does not show) between another surface 219 of second light polarizing film 211 and brightness enhancement film 213, in order to the brightness enhancement film 213 of tool diffusion layer 215 is fitted into a Polarizer 210 with second light polarizing film 211.Moreover the Polarizer 210 of present embodiment has an optics haze value, and it is less than about 75%.And preferably the optics haze value of Polarizer 210 was between 40%～60% o'clock, and Polarizer has better optical characteristics.
According to above-mentioned Polarizer and manufacture method thereof, present embodiment is incorporated into brightness enhancement film 213 and diffusion layer 215 in the single Polarizer 210.Brightness enhancement film 213 and diffusion layer 215 can replace the function of the brightening film sheet and the diffusion barrier sheet of existing backlight module.Because employed diffusion layer 215 thickness are smaller or equal to 50 μ m in the embodiment of the invention, the integral thickness that makes assembling rear indicator 100 at least attenuate 150 μ m.
Though the Polarizer 210 of the embodiment of the invention is open for example as above with the display device 100 that is applied to have backlight module 190.But the Polarizer of the embodiment of the invention, reflective LCD device or semi-penetrating inverse LCD device that it is applied to not have backlight module make display device increase brightness and contrast, also belong to category of the present invention.
The display device of the disclosed Polarizer of the above embodiment of the present invention, its manufacture method and use Polarizer is combined into single Polarizer with light polarizing film, brightness enhancement film and diffusion layer, significantly promotes the brightness and the contrast of display device whereby.Moreover the assembly that present embodiment will change opticpath and both different purposes of light polarity combines, and reduces the quantity of its blooming piece of backlight module of present embodiment whereby.Therefore, the display device of present embodiment compare with existing display device have smaller volume, lower weight and better optical characteristics.The embodiment of the invention is simplified the structure of display device and is promoted its optical characteristics effectively.
In sum, though the present invention with preferred embodiment openly as above, it is not in order to limit the present invention.The technician of the technical field of the invention, without departing from the spirit and scope of the present invention, when doing various changes and modification.Therefore, protection scope of the present invention is as the criterion when looking the accompanying Claim book person of defining.
Claims (16)
1. Polarizer is applied to it is characterized in that in the display device that this Polarizer comprises:
One brightness enhancement film;
One diffusion layer is formed at a surface of this brightness enhancement film; And
One light polarizing film is located at another surface of this brightness enhancement film.
2. Polarizer as claimed in claim 1 is characterized in that, this diffusion layer is a Bewildering resistance layer.
3. Polarizer as claimed in claim 1 is characterized in that, this brightness enhancement film is a reflection-type polarisation brightness enhancement film.
4. Polarizer as claimed in claim 1 is characterized in that, the thickness of this diffusion layer is less than or equal to 50 μ m.
5. Polarizer as claimed in claim 1 is characterized in that, the thickness of this diffusion layer is between 5 to 20 μ m.
6. Polarizer as claimed in claim 1 is characterized in that, the optics haze value of this Polarizer is less than about 75%.
7. Polarizer as claimed in claim 1 is characterized in that, this light polarizing film comprises a polarisation basement membrane and at least two diaphragms that lay respectively at the apparent surface of this polarisation basement membrane.
8. Polarizer as claimed in claim 1 is characterized in that, the optics haze value of this Polarizer is between 40% to 60%.
9. Polarizer as claimed in claim 1 is characterized in that, further comprises an adhesion layer, between this brightness enhancement film and this light polarizing film.
10. a display device is characterized in that, comprising:
Polarizer as claimed in claim 1;
One display panel comprises one first substrate, one second substrate and a liquid crystal layer, and wherein, this liquid crystal layer is folded between this first substrate and this second substrate; And
One backlight module, this backlight module are positioned at a side of this display panel, and wherein, this Polarizer is arranged between this backlight module and this display panel.
11. a polarizing plate making method is characterized in that, comprising:
One brightness enhancement film is provided;
Form a diffusion layer on this brightness enhancement film;
One light polarizing film is provided; And
This brightness enhancement film of this light polarizing film and this diffusion layer of tool is combined into a single thin plate.
12. manufacture method as claimed in claim 11 is characterized in that, this diffusion layer is a Bewildering resistance layer.
13. manufacture method as claimed in claim 11 is characterized in that, this brightness enhancement film is a reflection-type polarisation brightness enhancement film.
14. manufacture method as claimed in claim 11 is characterized in that, this diffusion layer is formed on this brightness enhancement film in the mode of wet type coating.
15. manufacture method as claimed in claim 11 is characterized in that, is combined into the mode of this single thin plate to fit.
16. manufacture method as claimed in claim 15 is characterized in that, the mode of this applying comprises that forming an adhesion layer fits this brightness enhancement film of this light polarizing film and this diffusion layer of tool.
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| CNA2008100980305A CN101266315A (en) | 2008-05-20 | 2008-05-20 | Polarization plate, its preparation method and display apparatus using same |
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| CNA2008100980305A CN101266315A (en) | 2008-05-20 | 2008-05-20 | Polarization plate, its preparation method and display apparatus using same |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102483474A (en) * | 2009-11-25 | 2012-05-30 | 夏普株式会社 | Light diffusion polarizing sheet, method for producing light diffusion polarizing sheet, and display device |
| CN102854558A (en) * | 2012-09-27 | 2013-01-02 | 京东方科技集团股份有限公司 | Polaroid and display device |
| CN104698657A (en) * | 2015-02-12 | 2015-06-10 | 深圳市瑞福达液晶显示技术股份有限公司 | Manufacturing method for backlight and LCD combined module |
| CN108490671A (en) * | 2018-02-06 | 2018-09-04 | 昆山龙腾光电有限公司 | Liquid crystal display |
| CN108931865A (en) * | 2017-05-29 | 2018-12-04 | 住友化学株式会社 | Polarize board group and liquid crystal display panel |
| CN109830520A (en) * | 2019-03-22 | 2019-05-31 | 云谷（固安）科技有限公司 | Brightness regulation film, display device and brightness adjusting method |
-
2008
- 2008-05-20 CN CNA2008100980305A patent/CN101266315A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102483474A (en) * | 2009-11-25 | 2012-05-30 | 夏普株式会社 | Light diffusion polarizing sheet, method for producing light diffusion polarizing sheet, and display device |
| CN102854558A (en) * | 2012-09-27 | 2013-01-02 | 京东方科技集团股份有限公司 | Polaroid and display device |
| CN104698657A (en) * | 2015-02-12 | 2015-06-10 | 深圳市瑞福达液晶显示技术股份有限公司 | Manufacturing method for backlight and LCD combined module |
| CN108931865A (en) * | 2017-05-29 | 2018-12-04 | 住友化学株式会社 | Polarize board group and liquid crystal display panel |
| CN108490671A (en) * | 2018-02-06 | 2018-09-04 | 昆山龙腾光电有限公司 | Liquid crystal display |
| CN108490671B (en) * | 2018-02-06 | 2020-11-24 | 昆山龙腾光电股份有限公司 | Liquid crystal display device with a light guide plate |
| CN109830520A (en) * | 2019-03-22 | 2019-05-31 | 云谷（固安）科技有限公司 | Brightness regulation film, display device and brightness adjusting method |
| CN109830520B (en) * | 2019-03-22 | 2021-01-22 | 云谷（固安）科技有限公司 | Brightness adjusting film, display device and brightness adjusting method |
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Open date: 20080917 |