CN107984821A - 吸光薄膜及其应用 - Google Patents

吸光薄膜及其应用 Download PDF

Info

Publication number
CN107984821A
CN107984821A CN201711457122.3A CN201711457122A CN107984821A CN 107984821 A CN107984821 A CN 107984821A CN 201711457122 A CN201711457122 A CN 201711457122A CN 107984821 A CN107984821 A CN 107984821A
Authority
CN
China
Prior art keywords
layer
index
refractive index
extinction film
black light
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201711457122.3A
Other languages
English (en)
Other versions
CN107984821B (zh
Inventor
李长顺
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhangjiagang Kangdexin Optronics Material Co Ltd
Original Assignee
Zhangjiagang Kangdexin Optronics Material Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhangjiagang Kangdexin Optronics Material Co Ltd filed Critical Zhangjiagang Kangdexin Optronics Material Co Ltd
Priority to CN201711457122.3A priority Critical patent/CN107984821B/zh
Publication of CN107984821A publication Critical patent/CN107984821A/zh
Application granted granted Critical
Publication of CN107984821B publication Critical patent/CN107984821B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/36Layered products comprising a layer of synthetic resin comprising polyesters
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/08Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04Interconnection of layers
    • B32B7/06Interconnection of layers permitting easy separation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/045Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/40Properties of the layers or laminate having particular optical properties
    • B32B2307/41Opaque
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2400/00Presence of inorganic and organic materials
    • C09J2400/10Presence of inorganic materials
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2423/00Presence of polyolefin
    • C09J2423/10Presence of homo or copolymers of propene
    • C09J2423/106Presence of homo or copolymers of propene in the substrate
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2467/00Presence of polyester
    • C09J2467/006Presence of polyester in the substrate
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2483/00Presence of polysiloxane
    • C09J2483/006Presence of polysiloxane in the substrate

Landscapes

  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Laminated Bodies (AREA)

Abstract

一种遮光薄膜技术领域的吸光薄膜及其应用,包括黑色吸光层以及层叠设置在黑色吸光层上的若干功能层,所述各功能层的折射率按各层与黑色吸光层之间的垂直距离从远到近逐层降低。本发明在黑色吸光层上设置多层折射率依次减小的功能层,光线随着各功能层折射率的减小而逐渐发散,透过的光线减少,光线到达黑色吸光层时基本被吸收,从而达到遮光的目的。

Description

吸光薄膜及其应用
技术领域
本发明涉及的是一种遮光胶带领域的技术,具体是一种吸光薄膜及其应用。
背景技术
目前OLED技术已经广泛应用于移动终端设备中。在OLED屏幕设计中,往往采用玻璃或者PI作为基底,而玻璃和PI(Polyimide,聚酰亚胺)均存在漏光的风险,因此会在屏幕后面增加一层遮光胶带,以增加屏幕的对比度。
目前的遮光胶带多采用黑色PET薄膜,涂布压敏胶后贴在OLED屏幕后面,或者采用透明PET薄膜,涂布黑色油墨,再涂布压敏胶,然后贴在OLED屏幕后面。但采用这两种方式仍有部分光线透过,导致遮光胶带对增加屏幕对比度的效果不明显。
发明内容
本发明针对现有技术存在的上述不足,提出了一种吸光薄膜及其应用,在黑色吸光层上设置多层折射率依次减小的功能层,光线随着各功能层折射率的减小而逐渐发散,透过的光线减少,光线到达黑色吸光层时基本被吸收,从而达到遮光的目的。
本发明是通过以下技术方案实现的:
本发明涉及一种吸光薄膜,包括黑色吸光层以及层叠设置在黑色吸光层上的若干功能层,所述各功能层的折射率按各层与黑色吸光层之间的垂直距离从远到近逐层降低。
所述功能层的层数为2层或3层。
优选地,所述功能层的层数为三层,包括依次设置的第一折射率层、第二折射率层和第三折射率层,其中,第一折射率层的折射率为1.6~1.63,第二折射率层的折射率为1.5~1.58,第三折射率层的折射率为1.35~1.43。
所述第一折射率层和第二折射率层均包括高折射率材料和低折射率材料;按重量份数,第一折射率层中高折射率材料为25~30份、低折射率材料为70~75份,在第二折射率层中高折射率材料为5~10份、低折射率材料为90~95份;
所述的高折射率材料的折射率范围为2.493~2.903,优选地,所述高折射率材料为TiO2
所述的低折射率材料的折射率范围为1.484~1.487,优选地,所述低折射率材料为SiO2
所述的第三折射率层包括有机硅粒子,所述有机硅粒子占第三折射率层的重量比例为5%~10%。
所述第一折射率层的厚度为1~3μm,所述第二折射率层的厚度为1~3μm,所述第三折射率层的厚度为1~3μm。
所述黑色吸光层母粒中添加有黑色色母。
所述黑色吸光层的厚度为5~10μm。
所述的黑色吸光层在远离各功能层的一侧设有背层;所述背层为PE层、PP层和PET层中任意一层或多层层叠组合,优选地,所述背层为一层PET层。
所述的吸光薄膜通过将各层原料采用共挤出工艺双向拉伸得到。
本发明涉及一种遮光胶带,包括所述的吸光薄膜;所述的吸光薄膜通过压敏胶粘结在离型膜上,收卷备用。
技术效果
与现有技术相比,本发明在黑色吸光层上设置多层折射率依次减小的功能层,光线随着折射率的减小而逐渐发散,透光的光线减少,光线到达黑色吸光层时基本被吸收,从而达到遮光的目的。
具体实施方式
下面结合具体实施方式对本发明进行详细描述。雾度和透过率测试采用型号NDH2000的雾度计,测试依据标准JIS7136;180°剥离力测试采用万能拉力机,测试依据标准为GB/T-2792-2014。
实施例1
本实施例涉及一种吸光薄膜,包括从上至下依次设置的第一折射率层、第二折射率层、第三折射率层、黑色吸光层和背层,其中,第一折射率层、第二折射率层和第三折射率层的折射率分别为1.63、1.55、1.43,折射率依次减小;吸光薄膜通过将各层原料采用共挤出工艺双向拉伸得到。
所述第一折射率层、第二折射率层和第三折射率层的厚度均为1μm,所述黑色吸光层的厚度为8μm,所述背层的厚度为1μm。
所述第一折射率层和第二折射率层均包括高折射率材料二氧化钛粒子和低折射率材料二氧化硅粒子;按重量份数,在第一折射率层中二氧化钛粒子为25份、二氧化硅粒子为75份,在第二折射率层中二氧化钛粒子为10份、二氧化硅粒子为90份;所述第三折射率层包括有机硅粒子,有机硅粒子占第三折射率层的重量比例为5%。
所述的黑色吸光层母粒中添加有黑色色母。
优选地,所述的背层为一层PET层。
本实施例涉及一种遮光胶带,包括如上所述的吸光薄膜,吸光薄膜通过压敏胶粘结在离型膜上,收卷备用。
本实施例中遮光胶带经测试,雾度为99.9%,透光率为0.01%,180°剥离力为500gf。
实施例2
本实施例涉及一种吸光薄膜,包括从上至下依次设置的上折射率层、下折射率层、黑色吸光层和背层,其中,上折射率层和下折射率层的折射率分别为1.6、1.5;吸光薄膜通过将各层原料采用共挤出工艺双向拉伸得到。
所述上折射率层和下折射率层的厚度均为3μm,所述黑色吸光层的厚度为5μm,所述背层的厚度为1μm。
所述上折射率层和下折射率层均包括高折射率材料二氧化钛粒子和低折射率材料二氧化硅粒子,按重量份数,在第一折射率层中二氧化钛粒子为30份、二氧化硅粒子为70份,在第二折射率层中二氧化钛粒子为5份、二氧化硅粒子为95份。
所述黑色吸光层母粒中添加有黑色色母。
所述背层为一层PP层。
本实施例中遮光胶带经测试,雾度为99.9%,透光率为0.02%,180°剥离力为600gf。
需要强调的是:以上仅是本发明的较佳实施例而已,并非对本发明作任何形式上的限制,凡是依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与修饰,均仍属于本发明技术方案的范围内。

Claims (10)

1.一种吸光薄膜,其特征在于,包括黑色吸光层以及层叠设置在黑色吸光层上的若干功能层,所述各功能层的折射率按各层与黑色吸光层之间的垂直距离从远到近逐层降低。
2.根据权利要求1所述的吸光薄膜,其特征是,所述功能层的层数为2层或3层。
3.根据权利要求2所述的吸光薄膜,其特征是,优选地,所述功能层的层数为三层,包括依次设置的第一折射率层、第二折射率层和第三折射率层,其中,第一折射率层的折射率为1.6~1.63,第二折射率层的折射率为1.5~1.58,第三折射率层的折射率为1.35~1.43。
4.根据权利要求3所述的吸光薄膜,其特征是,所述第一折射率层和第二折射率层均包括高折射率材料和低折射率材料;按重量份数,第一折射率层中高折射率材料为25~30份、低折射率材料为70~75份,在第二折射率层中高折射率材料为5~10份、低折射率材料为90~95份;
所述的高折射率材料的折射率范围为2.493~2.903,优选地,所述高折射率材料为TiO2
所述的低折射率材料的折射率范围为1.484~1.487,优选地,所述低折射率材料为SiO2
5.根据权利要求4所述的吸光薄膜,其特征是,所述的第三折射率层包括有机硅粒子,所述有机硅粒子占第三折射率层的重量比例为5%~10%。
6.根据权利要求3所述的吸光薄膜,其特征是,所述第一折射率层的厚度为1~3μm,所述第二折射率层的厚度为1~3μm,所述第三折射率层的厚度为1~3μm。
7.根据权利要求1所述的吸光薄膜,其特征是,所述黑色吸光层母粒中添加有黑色色母。
8.根据权利要求6所述的吸光薄膜,其特征是,所述的黑色吸光层在远离各功能层的一侧设有背层;所述背层为PE层、PP层和PET层中任意一层或多层层叠组合,优选地,采用PET层。
9.根据权利要求1所述的吸光薄膜,其特征是,所述的吸光薄膜通过将各层原料采用共挤出工艺双向拉伸得到。
10.一种遮光胶带,包括上述任一项权利要求所述的吸光薄膜;所述的吸光薄膜通过压敏胶粘结在离型膜上,收卷备用。
CN201711457122.3A 2017-12-28 2017-12-28 吸光薄膜及其应用 Active CN107984821B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711457122.3A CN107984821B (zh) 2017-12-28 2017-12-28 吸光薄膜及其应用

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711457122.3A CN107984821B (zh) 2017-12-28 2017-12-28 吸光薄膜及其应用

Publications (2)

Publication Number Publication Date
CN107984821A true CN107984821A (zh) 2018-05-04
CN107984821B CN107984821B (zh) 2019-11-08

Family

ID=62042007

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711457122.3A Active CN107984821B (zh) 2017-12-28 2017-12-28 吸光薄膜及其应用

Country Status (1)

Country Link
CN (1) CN107984821B (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113050205A (zh) * 2019-12-27 2021-06-29 比亚迪股份有限公司 黑色材料及其制备方法和应用

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102163526A (zh) * 2010-02-18 2011-08-24 佳能株式会社 黑底、其制造方法和使用黑底的图像显示装置
CN203132188U (zh) * 2012-11-30 2013-08-14 中国科学院上海技术物理研究所 一种颜色可调的太阳能选择性吸收膜系
CN204022744U (zh) * 2014-08-26 2014-12-17 东莞市古川胶带有限公司 一种新型显示屏背光模组专用的双面遮光胶带
CN107526210A (zh) * 2016-12-16 2017-12-29 芜湖德仓光电有限公司 一种组合式遮光胶及其制造工艺

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102163526A (zh) * 2010-02-18 2011-08-24 佳能株式会社 黑底、其制造方法和使用黑底的图像显示装置
CN203132188U (zh) * 2012-11-30 2013-08-14 中国科学院上海技术物理研究所 一种颜色可调的太阳能选择性吸收膜系
CN204022744U (zh) * 2014-08-26 2014-12-17 东莞市古川胶带有限公司 一种新型显示屏背光模组专用的双面遮光胶带
CN107526210A (zh) * 2016-12-16 2017-12-29 芜湖德仓光电有限公司 一种组合式遮光胶及其制造工艺

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113050205A (zh) * 2019-12-27 2021-06-29 比亚迪股份有限公司 黑色材料及其制备方法和应用
CN113050205B (zh) * 2019-12-27 2021-09-21 比亚迪股份有限公司 黑色材料及其制备方法和应用

Also Published As

Publication number Publication date
CN107984821B (zh) 2019-11-08

Similar Documents

Publication Publication Date Title
CN106833423A (zh) 一种加粘抗蓝光复合膜
TWI602708B (zh) 具有透明之黏著劑層的導電性薄膜層積體
JP2013086466A (ja) 前面板および前面板の製造方法
JP2020057005A (ja) 反射防止フィルムおよびその製造方法、ならびに反射防止フィルムの反射光特性測定方法
CN107984821B (zh) 吸光薄膜及其应用
CN209373164U (zh) 一种柔性oled用偏光片
JP6895253B2 (ja) 反射防止フィルムおよびその製造方法、ならびに反射防止フィルムの反射光特性測定方法
CN105659114B (zh) 一种保护片、保护片的制作方法及电子设备
CN205818592U (zh) 一种屏幕滤光保护片
US20180202100A1 (en) Multicolored siilicone synthetic leather and preparing method
CN203938634U (zh) 一种用于钢化玻璃的ab双面胶
CN204472013U (zh) 一种抗振保护膜
CN208999590U (zh) 一种光学复合膜
CN107359186A (zh) 一种oled显示模组
CN104589744A (zh) 一种抗振保护膜及其制备方法
CN207082532U (zh) 一种oled显示模组
CN206085882U (zh) 一种超精细防眩光光学防爆膜
CN210394244U (zh) 一种双面胶
CN206326952U (zh) 一种计算机防眩光屏幕
CN207496141U (zh) Ab胶膜
CN205564144U (zh) 一种oca填充带高厚度边框显示模组的全贴合结构体
JP7343117B1 (ja) 遮熱用粘着フィルム
CN202213266U (zh) 一种高透明防油污保护膜
CN218257201U (zh) 耐磨pvc彩膜
CN108715069A (zh) 一种光学聚酯薄膜

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant