好彩汇

歡迎到:深圳市三杰照明科技有限公司

quanguorexian:13662569381

Banner
行業知識
首頁 > 行業知識 > 內容
如何解決2835燈珠發黑的問題
編輯:深圳市三杰照明科技有限公司   時間:2019-03-05

2835燈珠發黑在生活中是很常見的,導致燈珠發黑的因素也是多方面的,那么我們該如何解決燈珠發黑的問題呢?

如何解決2835燈珠發黑問題?

好彩汇neime,zhexieliu、yang、xiudengwuzhishicongnalijinrudaoleddengzhufengzhuangtideneibuyuduyincengfashengfanyingde,lejiezhegejinrutongdao,duiwomenjiejuefaheiwentiyouzhujuedingxingdeyiyi。

好彩汇gezhongtongdaoshifoudounengyouxiaodizuduanchengweiwomenjiejuewentideguanjian。

youjigui、guishuzhi(zhelitongchengweiguijiao)beipubianyonglaizuoweileddengzhudefengzhuangjiao,qijuyouyidingdetoushitouyangxing,tebieshizaigaowendehuanjingxia,liu、yang、xiudengyuansuhenrongyichuantouguijiaojinrudaoleddengzhufengzhuangtineibu。

1、硬硅膠封裝

目前,大多數LED封裝廠采用硬度更高的硅膠作為LED燈珠的封裝膠材可以延緩發黑的時間,但硬度更高的硅膠帶來的應力問題增加了LED燈珠封裝體內部結構的可靠性風險。在熱脹冷縮的情況下,LED燈珠內部的鍵合線容易被拉斷導致功能性失效。然而,即便用了硬度更高的硅膠,硅膠的玻璃轉移溫度只有50-70℃,在高溫狀態下,硅膠的分子結構的間隙變大,硫、氧、溴等物質同樣很容易便進入到LED封裝體內部與鍍銀層發生反應。

2、硅膠表面涂布有機阻氣材料

因此,也有不少LED封裝廠仍然采用較軟一點的硅膠,在LED好彩汇燈珠封裝體表面涂布一層有機阻氣材料,在延緩發黑時間的同時,避免了硬度高的硅膠的應力問題。

bunankanchu,caiyongyingdugenggaodefengzhuangjiaohuobiaomiantubuyoujizuqicailiao,zheliangzhongjiejuefaheiwentidefangfadouzhishizaijiaotizhengmiantongdao(1)zuolegaishan,qitatongdaorengranmeiyouzuduan,liu、yang、xiudengwuzhiqingeryijudejinrudaoleddengzhufengzhuangtineibu,zheliangzhongfangfaxiaoguoshencha。gengshenzhe,tubuzaileddengzhubiaomian,zaihouqidejiagongzhong,youjizuqicengrongyibeimosun。tongshi,youjizuqicailiaochangqizaigaowenhuanjingxiarongyijiangjie、fashengfenziliebianerkailie,zuizhonghuanshiqibudaoyouxiaodebaohuzuoyong。

3、鍍銀層涂布有機阻氣材料

好彩汇youyutiepianxingdeledjiegoujueding,tongdaodezugenanduxiangdangda,zheyeshimuqiandeledfengzhuangxingyedejishupingjing。zuduantongdao,nanshangjianan,yaoyouxiaojiejuefaheiwenti,zhinengzaiduyincengbiaomianzuochedidebaohu。bufenledfengzhuangchangzaiduyincengbiaomiantubuyoujizuqicailiao,jibianweinengtongdaoweizuduan,liu、yang、xiudengwuzhijinruledfengzhuangtineibuyewufayuduyincengfashengfanying。

raner,zhezhongyoujizuqicailiaodehouduheyizhixingjiaonanzhangkong,zhongyaodeshiyoujicailiaochangqizaigaowenhuanjingxiarongyijiangjie,fashengfenziliebian,youjizuqicengkailie,zuizhonghuanshiqibudaohenhaodebaohuzuoyong。

yishangjiushiguanyuruhechuli2835dengzhufaheidewentile。