CN102862337B - A kind of blooming group preparation method - Google Patents
A kind of blooming group preparation method Download PDFInfo
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- CN102862337B CN102862337B CN201210388094.5A CN201210388094A CN102862337B CN 102862337 B CN102862337 B CN 102862337B CN 201210388094 A CN201210388094 A CN 201210388094A CN 102862337 B CN102862337 B CN 102862337B
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Abstract
The invention discloses a kind of blooming group preparation method, it comprises the following steps: diffuser, brightness enhancement film are overlayed two and reinforce between glass, wherein, the width of two reinforcing glass is identical and length is also identical, the size be designed and sized to when being in default normal temperature environment temperature of diffuser, brightness enhancement film, and meeting when the most high ambient temperature preset, the width after diffuser, brightness enhancement film expand, length are all identical with the width of each reinforcing glass, length; The surrounding sidewall reinforcing glass at two pastes sealant tape; Filled on the surrounding sidewall that two are reinforced glass by fluid sealant, fluid sealant covers sealant tape.The invention has the advantages that: can guarantee that liquid crystal display is in high temperature and high humidity environment, do not occur film wrinkle and display problem of non-uniform, the reliability test of hot and humid environment can be born.
Description
Technical field
The present invention relates to field of backlights, specifically a kind of blooming group preparation method.
Background technology
At present, the use of outdoor liquid crystal display is more and more universal, mainly comprises the liquid crystal displays such as airborne and vehicle-mounted.The acquisition impact of outdoor stronger surround lighting on display information is comparatively large, and mainly contain two kinds of approach head it offs, one is carry out anti-reflection process at liquid crystal display surface, reduces its surface reflection; Two is initiatively improve backlight illumination.Due to the limitation that current anti-reflection technology can reach, can only improve further from raising backlight illumination direction.The raising of backlight illumination, due to heat radiation effect, the inevitable blooming group of liquid crystal display of giving brings higher temperature.
On the other hand, outdoor liquid crystal display is affected by environment comparatively large, and especially military airborne or carrier-borne liquid crystal display, often can work in the adverse circumstances such as high temperature or high humidity.Higher environment temperature significantly can improve the temperature of blooming group.
Traditional blooming group comprises, lower reinforcing glass (what is called in the application " on, under " are all relative liquid crystal displays, what distance liquid crystal display was nearer is upper) and be positioned at, brightness enhancement film between lower reinforcing glass, double faced adhesive tape, reinforce glass, diffuser, double faced adhesive tape, diffuser is fixed on lower reinforcing glass by double faced adhesive tape, brightness enhancement film is fixed on the 3rd piece by double faced adhesive tape and reinforces on glass, on, four sidewalls of lower reinforcing glass adopt fluid sealants and by upper, lower reinforcing glass forms an annular seal space, double faced adhesive tape is used to be tied to reinforce the diffuser on glass and brightness enhancement film to be housed in annular seal space.For solving high temperature membrane wrinkle problem, this scheme uses double faced adhesive tape to be fixed on by blooming and reinforces on glass.This scheme has 3 drawbacks, the thickness being the increase in blooming group; Two is that blooming is compound on reinforcing glass by double faced adhesive tape, the prism structure on recombination process destructible blooming; Three is that double faced adhesive tape can only the shiny surface of complex optical film, does not reinforce for the blooming without shiny surface by using double faced adhesive tape not to be compound on glass.(this section is traditional solution, and defect is more)
Because blooming (referring to diffuser and brightness enhancement film) base material thermal coefficient of expansion is comparatively large, high-temperature expansion absolute dimension is comparatively large, especially large scale liquid crystal display, easily causes the diffuser of blooming group and brightness enhancement film to occur film wrinkle phenomenon.Meanwhile, there is complicated microcosmic prism structure on optical film material surface, is easy to the destruction being subject to moisture, occurs larger inhomogeneities, have a strong impact on display effect.
Summary of the invention
In view of this, be necessary to provide a kind of blooming group preparation method, in high temperature or high humidity environment, occur film wrinkle or display problem of non-uniform to solve large scale liquid crystal display.
The present invention is achieved in that a kind of blooming group preparation method, and this blooming group comprises diffuser, brightness enhancement film and two reinforcing glass, and this blooming group preparation method comprises the following steps:
Diffuser, brightness enhancement film are overlayed two and reinforce between glass, wherein, the width of two reinforcing glass is identical and length is also identical, the size be designed and sized to when being in default normal temperature environment temperature of diffuser, brightness enhancement film, and meet when the most high ambient temperature preset, width after this diffuser expands, length are identical with the width of each reinforcing glass, length respectively, and the width after this brightness enhancement film expands, length are identical with the width of each reinforcing glass, length respectively;
The surrounding sidewall reinforcing glass at two pastes sealant tape;
Filled on the surrounding sidewall that two are reinforced glass by fluid sealant, fluid sealant covers sealant tape.
As the further improvement of such scheme, diffuser, brightness enhancement film are clamped in two and reinforce between glass and be sealed in two by sealant tape and reinforce between glass, on the thickness direction that two are reinforced glass, the opposite end of sealant tape lays respectively at the centre position that two are reinforced the sidewall of glass.
The advantage of blooming group preparation method of the present invention is: can guarantee that liquid crystal display is in high temperature and high humidity environment, does not occur film wrinkle and display problem of non-uniform, can bear the reliability test of hot and humid environment.
Accompanying drawing explanation
The structural representation of the blooming group that Fig. 1 makes for the blooming group preparation method utilizing better embodiment of the present invention and provide.
Fig. 2 is the broken section enlarged drawing of blooming group in Fig. 1.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The blooming group preparation method that better embodiment of the present invention provides comprises the following steps:
Diffuser, brightness enhancement film are overlayed two and reinforce between glass, wherein, the width of two reinforcing glass is identical and length is also identical, the size be designed and sized to when being in default normal temperature environment temperature of diffuser, brightness enhancement film, and meet when the most high ambient temperature preset, width after this diffuser expands, length are identical with the width of each reinforcing glass, length respectively, and the width after this brightness enhancement film expands, length are identical with the width of each reinforcing glass, length respectively;
The surrounding sidewall reinforcing glass at two pastes sealant tape (preventing fluid sealant from infiltrating the gap place of two reinforcing glass), preferably, diffuser, brightness enhancement film is clamped in two and reinforces between glass and be sealed in two by sealant tape and reinforce between glass, on the thickness direction that two are reinforced glass, the opposite end of sealant tape lays respectively at the centre position that two are reinforced the sidewall of glass, can guarantee that follow-up fluid sealant plays good sealing effectiveness like this, also ensure that fluid sealant cannot invade in two sidewalls reinforcing glass and affect diffuser simultaneously, the normal use of brightness enhancement film,
Filled on the surrounding sidewall that two are reinforced glass by fluid sealant, fluid sealant covers sealant tape.
Detailed introduction is done to blooming group preparation method below.
See also Fig. 1 and Fig. 2, the sectional view of its blooming group local made for the blooming group preparation method utilizing better embodiment of the present invention and provide.The what is called " upper and lower " that this blooming group comprises in diffuser 3, brightness enhancement film 4 and upper reinforcing glass 1, lower reinforcing glass 2(the application is all relative liquid crystal displays, and what distance liquid crystal display was nearer is upper).Diffuser 3, brightness enhancement film 4 are between upper and lower reinforcing glass 1,2.
According to the temperature requirement of environment for use, and the thermal coefficient of expansion of diffuser 3 and brightness enhancement film 4 material, require that the appearance and size of diffuser 3 and brightness enhancement film 4 equals reinforcing glass 1 size when most high ambient temperature.Extrapolation goes out the diffuser 3 upper full-size of reinforcing glass 1 normal temperature needing reduce relative to brightness enhancement film 4, cuts diffuser 3 and brightness enhancement film 4 according to the size after reducing.Lower reinforcing glass 2 is the same with upper reinforcing glass 1 appearance and size, is stacked by material successively combine according to desired sequence.Again according to the distance between upper reinforcing glass 1 and lower reinforcing glass 2 sidewall centre position, cut the sealant tape 5 of respective width specification, and paste on relevant position.Finally, use the even complete application of fluid sealant 6 at blooming group surrounding sidewall.
The blooming group that the blooming group preparation method that better embodiment of the present invention provides makes, can guarantee that liquid crystal display is in high temperature and high humidity environment, does not occur film wrinkle and display problem of non-uniform, can bear the reliability test of hot and humid environment.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1. a blooming group preparation method, this blooming group comprises diffuser, brightness enhancement film and two reinforcing glass, and it is characterized in that, this blooming group preparation method comprises the following steps:
Diffuser, brightness enhancement film are overlayed two and reinforce between glass, wherein, the width of two reinforcing glass is identical and length is also identical, the size be designed and sized to when being in default normal temperature environment temperature of diffuser, brightness enhancement film, and meet when the most high ambient temperature preset, width after this diffuser expands, length are identical with the width of each reinforcing glass, length respectively, and the width after this brightness enhancement film expands, length are identical with the width of each reinforcing glass, length respectively;
The surrounding sidewall reinforcing glass at two pastes sealant tape;
Filled on the surrounding sidewall that two are reinforced glass by fluid sealant, fluid sealant covers sealant tape.
2. blooming group preparation method as claimed in claim 1, it is characterized in that, diffuser, brightness enhancement film are clamped in two and reinforce between glass and be sealed in two by sealant tape and reinforce between glass, on the thickness direction that two are reinforced glass, the opposite end of sealant tape lays respectively at the centre position that two are reinforced the sidewall of glass.
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CN103616779B (en) * | 2013-12-04 | 2016-06-08 | 中航华东光电有限公司 | Optical film assembly can be heated |
CN103616781A (en) * | 2013-12-04 | 2014-03-05 | 中航华东光电有限公司 | Optical membrane module resistant to strong vibration |
CN104566032B (en) * | 2014-12-30 | 2017-02-22 | 深圳市华星光电技术有限公司 | Waterproof backlight module |
CN105068163A (en) * | 2015-09-10 | 2015-11-18 | 中航华东光电有限公司 | High/low-temperature membrane wrinkling prevention membrane group structure and production method thereof |
CN106647034B (en) * | 2017-01-03 | 2019-10-01 | 京东方科技集团股份有限公司 | A kind of backlight module and display device |
CN107399138B (en) * | 2017-07-05 | 2019-10-11 | 中航华东光电有限公司 | The optical film group of light and thin type |
CN110901540A (en) * | 2019-12-13 | 2020-03-24 | 深圳市光羿科技有限公司 | Rear-view mirror |
CN112147736A (en) * | 2020-10-22 | 2020-12-29 | 中航华东光电有限公司 | Novel optical film group |
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CN202583644U (en) * | 2012-03-19 | 2012-12-05 | 中航华东光电有限公司 | Improved liquid crystal display module |
CN203299410U (en) * | 2013-06-02 | 2013-11-20 | 澳谱光通讯器件(上海)有限公司 | Optical film assembly of self-focusing lens |
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US6347873B1 (en) * | 1999-07-08 | 2002-02-19 | Physical Optics Corporation | Backlight assembly with a light pipe having an integral surface diffuser |
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CN101458418A (en) * | 2008-11-19 | 2009-06-17 | 安徽华东光电技术研究所 | Complex optical film series and method for producing the same |
CN202362517U (en) * | 2011-11-21 | 2012-08-01 | 中航华东光电有限公司 | Optical film assembly clamp |
CN202583644U (en) * | 2012-03-19 | 2012-12-05 | 中航华东光电有限公司 | Improved liquid crystal display module |
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