Shanghai Daoqin Plastics Co., Ltd.

         flexible 屏幕, generally flexible OLED. versus relatively 于传统屏幕, flexible advantages obvious, not only more add light thin, but also consumption low has device parts, has improves equipment can force, meanwhile its can bending, flexibility property features, its resistant use degree large large high 于传统 屏幕 and reduce equipment outer loss 伤 概 rate.

        而早 in 1974 year, 施乐帕洛阿尔托 research in Gyricon electronics 纸, let flexible 显示屏 concept 自此诞生. this type of can 像纸一样 bending, also can 直接显示图像 材 material 自提出 rear 一直都 very 吸引人, is due to technology cost and other issues, in very long time can from 实验室走出. in function machine 时代, NEC, 京瓷, and other launch similar 折叠屏幕 electronics product. this type of 折叠屏手 machine more is cover/cap machine types, utilizing ultra- narrow frame +铰链 design, simple will block hard add in 一起, its this 并不算 true positive flexible 折叠屏幕.

         to 2012 year, flexible breakthrough property 进展, manufacturing Plastic Logic manufacturing full has plastics material production flexible 显示屏, 并2013 year show/display and 英特尔共同打造出 flexible machine MorePhone.

        2013 year, machine 厂商索尼, 三星几乎 in time for flexible 屏幕投入 related technology R&D. 时隔五 year time 折叠屏手 machine has breakthrough property show/display in large front. 历经几番周折, 2018 year 10 month, published full 球第一款折叠屏手 machine 柔派, expected 2019 year, will has more more machine add to flexible machine R&D and 推广. that flexible for/regarding film from 业人员 看, and which types type film and material 呢?我们一起 inventory/review.

         polyimide (PI) film （PI film ） 

         flexible although can achieve bending, if frequency bending, 就会出现如同 metal 纸张一样 fatigue issues. flexible if more bending add upper long time use, to more pressure shrink and tensile force rear, in can can 会出现折痕 loss bad. in addition, electrical sheet/plate, device parts in a large amount of bending and non bending rear, can can 导致折叠时受 loss or other 事故. has 玻璃面 sheet/plate method meet/satisfy its high frequency rate requirements, machine main/primary is use polyimide (PI) film (transparent PI film) substitute/replace has cover/cap sheet/plate, CPI本身 tool has can property, is PI材 material method meet/satisfy hardness requirements, need in PI film surface increase coating reinforcement hardness.

         transparent polyimide (PI) film full patent amount full polyimide (PI) film patent amount 9% left right, transparent polyimide (PI) film China patent amount 也仅占 China polyimide (PI) film patent amount 2.6% left right. 总体而言, transparent polyimide (PI) film field/area patent technology amount low. full scope/range inner, tool 备CPI film technology can force has Kolon, SKC and Sumitomo chemical, inner and transparent polyimide (PI) film R&D enterprise 也陆续兴起.

         polyester film （BOPET film ）

         polyester film (BOPET film) is very more flexible 显示屏 in multiple function film film or film, its in most commonly used machine sheet/plate 屏幕触控 core ITO film (铟锡 oxidation material semi transparent conductive film), is 以BOPET film is 基材, in film surface coating conductive material oxidation material made 备, is ITO property suitable for flexible application. inner using/adopting tool has full can nano 银线AgNWs substitute/replace ITO做触控 core conductive material, is nano difficult narrow frame, 蚀刻痕 obvious this issues also 需进一步 improvement. substitute/replace ITO core conductive material nano conductive film is 主, nano conductive film 基材也 is 以BOPET film is 主.

         in OLED bending process in, is anti 止屏幕 破 loss and 折弯, generally need in sheet/plate 底部黏贴一层保护 film, 该保护 film tool has relatively good rigid property, its 基础材 material is BOPET film.

         ring polymer film （COP film ）

        由 Japan company development production types 早期应 used for medical resin, its tool high transparency, low di rate, low water, high rigidity, high heat resistant, water gas property good and other features, in 一 特殊 high transparency degree and UV resistant conductive film demand field/area, using/adopting COP film substitute/replace BOPET as is 基材.

         liquid crystal polymer (LCP) film （LCP film ）

        LCP plastics raw materials full 称Liquid CrystalPolymer, in 文名称 liquid crystal polymer (LCP), it is types new type polymer/macromolecule material, in melt generally liquid property. LCP film tool good high strength, high rigidity, high temperature resistance, electrical insulation property and other property can, meanwhile versus ratio PI film tool more good resistant water property, therefore is types ratio PI film more excellent film type type. currently by widely used in flexible 屏 排线, flexible machine 天线, device film and other.

        PE保护 film

         remove anti sheet/plate 弯折破 loss film outer, in flexible production and 运输流转 process in, need one-time property consumption relatively a large amount of polyethylene (PE) as is 基材 自 viscous film, used for electronics by material or in step/link loss and other. Common viscous property material EVA, ultra- low density polyethylene (PE), polyolefin property resin. viscous film features: processing process/workflow simple; long time use 无遗胶 phenomenon;材 material cost relatively low; product product types relatively less, used for high electronics equipment.

         poly 二甲基 silicon oxygen film （PDMS film ）

        PDMS film belongs to types polymer/macromolecule elastic property polymer film, poly 二甲基 silicon oxygen is raw materials 经特殊 process made 备. due to poly 二甲基 silicon oxygen material features, PDMS film 一定特异 property can. elastic property, low modulus, excellent gas property, chemical stability property, heat stabilized property, low temperature flexibility property (-60~200℃ maintain excellent property can), full transparent property, material versus property. currently PDMS film in 疤痕贴, electronics flexible device parts, micro 流控芯 sheet/slice gas separation technology, can can product and other in high product in has different degree application.