TFT模组培训.ppt

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1、Manufacture Dept. PI Team Manufacture Dept. PI Team SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTD. 模组不良简介模组不良简介PI team PI team 2008-01-16 2008-01-16 Manufacture Dept. PI Team Manufacture Dept. PI Team SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO

2、-ELECTRONICS CO.,LTD. 液晶模组结构简介1.模组不良简介2.不良命名(Defect code)相关Manufacture Dept. PI Team Manufacture Dept. PI Team SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTD. LCDLiquid Crystal Display液晶显示器TFT-LCDThin Film Transistor LCD 薄膜晶体管液晶显示器v 由于TFT-LCD具有体积小、重量轻、低辐射、低耗电量、全彩色

3、化等优点，因此在各类显示器上得到了广泛的应用基本概念基本概念Manufacture Dept. PI Team Manufacture Dept. PI Team SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTD. Manufacture Dept. PI Team Manufacture Dept. PI Team SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTD

4、. TFT-LCD基本结构基本结构Manufacture Dept. PI Team Manufacture Dept. PI Team SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTD. q 背光板模組:提供光的來源.q 上下偏光板，TFT Glass Substrate，液晶：形成偏振光，控制光线的通过与否。q 彩色滤色膜：提供TFT LCD紅，綠，藍(光的三原色)的來源。q ITO透明导电层：提供透明的导电通路。q Spacer：提供一固定高度給彩色滤光片和TFT Glas

5、s Substrate, 控制盒厚，作为灌入液晶時的空間及作为上下两层Glass的支撑。组件介绍组件介绍Manufacture Dept. PI Team Manufacture Dept. PI Team SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTD. Array 制程与半导体制程相似，但不同的是将薄膜晶体管制作在玻璃基底上而非晶圆上； Cell 制程是将前段Array基板与彩色滤光片的玻璃基板贴合，并在两片玻璃基板间滴入液晶(LC) ； 模组组装制程是将Cell制程后的面

6、板与其它如背光单元、电路、外框等多种零组件组装的过程。TFT-LCD制程制程Color Filter Fabrication Process TFT Array Process Liquid Crystal Cell Process Module Assembly ProcessManufacture Dept. PI Team Manufacture Dept. PI Team SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTD. Manufacture Dept. PI Tea

7、m Manufacture Dept. PI Team SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTD. Cell 制程制程CFTFTPI LineRubbing LineCFTFTODF LineCELLCFTFTManufacture Dept. PI Team Manufacture Dept. PI Team SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONICS CO.,LT

8、D. 背光源及结构背光源及结构Manufacture Dept. PI Team Manufacture Dept. PI Team SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTD. CellCell工程工程ModuleModule工程工程信号基板驱动IC PanelBLULCD Module连接电路保护板検検 査査装配装配绑定绑定LCD Panel液晶滴下液晶滴下真空贴合真空贴合 切割切割CFTFT基板TFTTFT工程工程成膜成膜膜Glass基板PR塗布塗布曝光曝光Mask現

9、像現像刻蚀刻蚀剥離剥離TFT基板重复Glass基板Manufacture Dept. PI Team Manufacture Dept. PI Team SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTD. TFT-LCD不良分析不良分析Manufacture Dept. PI Team Manufacture Dept. PI Team SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONI

10、CS CO.,LTD. 1.1.模组不良模组不良不良的种类不良的种类电学性不良电学性不良(ELECTRICAL DEFECT)(ELECTRICAL DEFECT)外观性不良外观性不良(APPEARANCE DEFECT)(APPEARANCE DEFECT) 目视性不良目视性不良(VISUAL DEFECT)(VISUAL DEFECT)Manufacture Dept. PI Team Manufacture Dept. PI Team SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONICS CO

11、.,LTD. uPixel(Pixel(亮点、暗点、连续亮点、暗点、连续, ,间距间距 ) )uLine Defect (Y-Line Defect (Y-向亮线，向亮线，X-X-向亮线向亮线,X,X薄亮线薄亮线,Y,Y薄暗线薄暗线) )uOPEN (DATA OPEN ,GATE OPEN,COMMON OPEN )OPEN (DATA OPEN ,GATE OPEN,COMMON OPEN )uSHORT (DGS,GGS,DDS )SHORT (DGS,GGS,DDS )uESD(DATA ESD,GATE ESD)ESD(DATA ESD,GATE ESD)u其他其他1.11.1电学性

12、不良电学性不良Manufacture Dept. PI Team Manufacture Dept. PI Team SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTD. 现象：暗画面下以像素为单位的亮点；白画面下R，G，B下对应的像素暗点.分为个数、连续和间距三种类型.VIEW ANGLE：正视产生原因：Array不良（Gate、S/D、Active、ITO等）和Cell内异物、Scratch等造成.PixelPixel类类暗点暗点暗点暗点3 3连续连续亮点亮点亮点亮点4 4连续

13、连续亮点一个亮点一个暗点一个暗点一个亮点间距亮点间距亮点四连续亮点四连续Manufacture Dept. PI Team Manufacture Dept. PI Team SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTD. 现象：X向或Y向亮线.VIEW ANGLE：正视产生原因：Pad部Line间Open或Short；Array Metal Remain，Cell内金属异物、C/F突起引起上下间short、Common Short.Line DefectLine Defec

14、t类类Y Y向向L/DL/D X X向向L/DL/D X X亮线亮线Y Y亮线亮线Manufacture Dept. PI Team Manufacture Dept. PI Team SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTD. 现象：浅灰色亮或暗线，灰度不均，有的部分很不明显.VIEW ANGLE：正视产生原因：ESD造成Data和Repair Line短接或者在Repair工序对DO没有维修成功也可能造成弱线.Line DefectLine Defect类类Y Y向向

15、X X向向X X薄亮线薄亮线Y Y薄暗线薄暗线Manufacture Dept. PI Team Manufacture Dept. PI Team SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTD. 现象：Data线从中间断开.VIEW ANGLE：正视产生原因：Chemical Attack、Array Photo工程的PR原形Open，其他P/T及Scratch等造成.OPENOPEN类类DATA OPENDATA OPENManufacture Dept. PI Team

16、 Manufacture Dept. PI Team SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTD. 现象：Gate线从中间断开.VIEW ANGLE：正视产生原因：Chemical Attack、Array Photo工程的PR原形Open，其他P/T及Scratch等造成.OPENOPEN类类GATE OPEN GATE OPEN Manufacture Dept. PI Team Manufacture Dept. PI Team SHANGHAI TIANMA MIC

17、RO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTD. 现象：Data和Gate cross状亮.线，交叉部分可见异物VIEW ANGLE：正视产生原因：Short处的金属Remain或导电P/T造成.SHORT SHORT 类类DATA GATE SHORTDATA GATE SHORTManufacture Dept. PI Team Manufacture Dept. PI Team SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELE

18、CTRONICS CO.,LTD. 现象：一般为Gate向相邻的一条亮线和一条暗线.VIEW ANGLE：正视产生原因：Pad部或Fan-Out部Scratch、P/T及Array Remain引起Pad间Short.SHORT SHORT 类类GATE GATE GATEGATE SHORT SHORTManufacture Dept. PI Team Manufacture Dept. PI Team SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTD. 现象：一般为Data向

19、相邻的一条亮线和一条暗线.VIEW ANGLE：正视产生原因：Pad部或Fan-Out部Scratch、P/T及Array Remain引起Pad间Short.SHORT SHORT 类类DATE DATE DATEDATE SHORT SHORTManufacture Dept. PI Team Manufacture Dept. PI Team SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTD. 现象：主要为Gate或Data Pad处发生白色或黑色楔形连续亮点，部分ESD也

20、可能会造成Line Defect；对Vgh和Vgl调定敏感.VIEW ANGLE：正视产生原因：工程中的TFT器件发生静电击穿，多发于Pad部.合理设置IONIZER及设备接地，减少人手触摸Pad部可减小ESD的发生机率.ESDESD类类GATE ESD GATE ESD DATA ESD DATA ESD GATE ESDGATE ESDDATA ESDDATA ESDManufacture Dept. PI Team Manufacture Dept. PI Team SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICR

21、O-ELECTRONICS CO.,LTD. u崩边崩边u崩角崩角uCRACK CRACK u外观其他外观其他 1.21.2外观不良外观不良Manufacture Dept. PI Team Manufacture Dept. PI Team SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTD. 现象：Pad 部发生破损VIEW ANGLE：正视产生原因：碰撞或者装置故障,压力不适.崩边崩边Gate部Data部崩边崩边Manufacture Dept. PI Team Manufa

22、cture Dept. PI Team SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTD. 现象：Align 十字Mark等处破损.VIEW ANGLE：正视产生原因：搬送过程中装置异常造成.Align#1Align#1Align#2Align#2Align#3Align#3崩角崩角崩角崩角Manufacture Dept. PI Team Manufacture Dept. PI Team SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHA

23、NGHAI TIANMA MICRO-ELECTRONICS CO.,LTD. 现象：Pad或是显示区均有可能发生Crack；产生原因：搬送装置有问题,受重压,基台突起等.CRACK CRACK 类类TFT and CF TFT and CF 大裂纹大裂纹Manufacture Dept. PI Team Manufacture Dept. PI Team SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTD. 3.3 3.3 目视性不良目视性不良u各种各种Mura(Mura(周边，

24、垂直周边，垂直/ /水平线，水平线，RubbingRubbing，BlockBlock，未确认等，未确认等) )uGAPGAP类类( (黑黑Gap,Gap,白白Gap )Gap )uSPOTSPOT类类( (黑点黑点, ,白点白点) )uParticleParticle类类( (线性线性, , 圆形圆形, , 其他）其他）uScratch (TFT, CF, CellScratch (TFT, CF, Cell内，内，Touch)Touch)uC/FC/F不良不良(BM(BM盲失，盲失，PixelPixel盲失，色盲失，色MuraMura，C/F P/T)C/F P/T)uZaratsuki

25、(Align, P/T, DomainZaratsuki (Align, P/T, Domain，etc)etc)uBubble (Large, Small, Bubble (Large, Small, 其他其他) )uSeal leakSeal leakuETC (BNU, Contact Miss, ETC (BNU, Contact Miss, 过充满，未充进过充满，未充进) )u偏光片不良偏光片不良( (气泡气泡, ,异物异物, ,划伤划伤, ,水纹水纹) )Manufacture Dept. PI Team Manufacture Dept. PI Team SHANGHAI TIA

26、NMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTD. Mura Mura 类不良类不良现象：Panel 边缘泛白，灰画面 下视认性强.VIEW ANGLE：正视产生原因：周边部Gap异常.周围周围MuraMura左右左右MuraMura上下上下MuraMuraManufacture Dept. PI Team Manufacture Dept. PI Team SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONIC

27、S CO.,LTD. Mura Mura 类不良类不良现象：在中间灰度下，Gap部分的颜色与其他位置处相比较黑或较白；指压后产生水波纹现象.VIEW ANGLE：正视产生原因：Panel受到挤压后Cell Gap异常， Gap变厚产生白Gap，变窄产生黑Gap；也有部分Gap由异物引起，Gap中心可见异物性亮点.黑黑GapGap，白，白GapGapManufacture Dept. PI Team Manufacture Dept. PI Team SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONIC

28、S CO.,LTD. Mura Mura 类不良类不良现象：白色带状.VIEW ANGLE：正视产生原因：前段滚轮等设备挤压造成，灰画面下易检。垂直白垂直白BLOCK MuraBLOCK Mura水平白水平白BLOCK MuraBLOCK MuraManufacture Dept. PI Team Manufacture Dept. PI Team SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTD. Mura Mura 类不良类不良现象：白色带状.VIEW ANGLE：正视产生原

29、因：前段滚轮等设备挤压造成，灰画面下易检。垂直白线垂直白线 MuraMura水平白线水平白线 Mura MuraManufacture Dept. PI Team Manufacture Dept. PI Team SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTD. Mura Mura 类不良类不良_ _LINE LINE 现象：Panel右侧黑色的条状不良，通常伴有白条状的周边Mura发生.VIEW ANGLE：正视产生原因：Rubbing工程时，TBA（预倾角)在Glass的

30、边缘比内部低，所以造成L/C分子旋转不完全.垂直黑线垂直黑线 MuraMuraManufacture Dept. PI Team Manufacture Dept. PI Team SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTD. Mura Mura 类不良类不良-RUBBING -RUBBING 现象：Rubbing角方向的线组，以一定间隔发生.VIEW ANGLE：正视产生原因：Rubbing cloth上有P/T.Rubbing Rubbing 单单 Manufactur

31、e Dept. PI Team Manufacture Dept. PI Team SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTD. Mura Mura 类不良类不良_ _RUBBING RUBBING 类类现象：Rubbing方向的线组，以一定间隔发生.VIEW ANGLE：正视产生原因：Rubbing cloth上有P/T.Rubbing Mura Rubbing Mura 双双Manufacture Dept. PI Team Manufacture Dept. PI T

32、eam SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTD. 黑点，白点黑点，白点 现象：黑色或白色的小斑点，多为圆形；形似Gap但是指压后没有水波纹出现.VIEW ANGLE：正视产生原因：黑点主要为PI膜Dimple性Pinhole或PI膜划伤引起；白点主要为Cell内异物、Spacer Cluster、PI损害和污染、PI Coating的不完全等因素导致.SPOT SPOT 类类Manufacture Dept. PI Team Manufacture Dept. PI T

33、eam SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTD. 现象：一般情况下造成亮点或连续，并且不良部分明显可见异物.VIEW ANGLE：正视产生原因：Cell工程中的Hard P/T、Lint和Organic造成.圆形圆形 PARTICLEPARTICLE线形线形 PARTICLEPARTICLEPARTICLE PARTICLE 类类Manufacture Dept. PI Team Manufacture Dept. PI Team SHANGHAI TIANMA MIC

34、RO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTD. 现象：CF Scratch，TFT Scratch和Cell Scratch两种类型. VIEW ANGLE：正视产生原因：可以通过观察Scratch处的BM是否完好来判断Scratch是发生在TFT还是CF.工艺中TFT基板或CF基板受到划伤.ASSY工程前多为PI膜Scratch；成盒后多为Cutting工程造成的表面Scratch.CELL ScratchCELL ScratchCF Scratch, TFT Scratch CF Scratch, TFT S

35、cratch ScratchScratch类类CellCell scratchscratchCF CF ScratchScratchManufacture Dept. PI Team Manufacture Dept. PI Team SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTD. 现象：类似被手抹过的痕迹，甚至是手印或指印.VIEW ANGLE：正视产生原因：PI Coating后被手或其他物品接触过.ScratchScratch类类Touch Touch Manufact

36、ure Dept. PI Team Manufacture Dept. PI Team SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTD. 现象：BM盲失在黑色画面下显示为白色的小亮点；Pixel盲失部分在相应的色Pattern下也显示为白色.VIEW ANGLE：正视产生原因：大部分为C/F原材料不良.但BM和Pixel盲失同时出现时，CF被Scratch的可能性很大.C/FC/F类类BM BM 盲失盲失Pixel Pixel 盲失盲失RED RED 象素象素GREEN GRE

37、EN 象素象素BLUE BLUE 象素象素Manufacture Dept. PI Team Manufacture Dept. PI Team SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTD. 现象：色Pattern下，不良区域的颜色明显与其它区域不同.VIEW ANGLE：正视产生原因：C/F原材料不良.BlueBlue色色MuraMuraC/FC/F类类Red Red 色色MuraMuraGreenGreen色色MuraMuraManufacture Dept. PI T

38、eam Manufacture Dept. PI Team SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTD. 现象：R，G，B的小亮点，多发生于Panel的边角和中心位置.VIEW ANGLE：正视发生原因：在Rubbing 工艺进行时由于 Rubbing Cloth的摩擦产生的较小的PI膜碎屑导致.ZaratsukiZaratsuki类类( (象素边缘漏光象素边缘漏光) )漏光漏光 P/TP/TManufacture Dept. PI Team Manufacture Dep

39、t. PI Team SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTD. 现象：满屏绿色毛绒状，正视几乎不可见.VIEW ANGLE：侧视角可视性强产生原因:Rubbing深度过浅致使此处PI层的取向力减弱导致不良发生.由于C/F上绿色的亚像素高度最高，且多发生于Green PXL的边角处.ZaratsukiZaratsuki类类漏光漏光 DomainDomainManufacture Dept. PI Team Manufacture Dept. PI Team SHANGHA

40、I TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTD. 现象：黑画面处漏光现象，部分位置发白Pixel周边部存在漏光现象，有视角依赖性.VIEW ANGLE：正视产生原因：TFT和CF在ASSY Align时发生Miss；Array ITO CD大或CF的BM过窄.ZaratsukiZaratsuki类类漏光漏光 AlignAlignManufacture Dept. PI Team Manufacture Dept. PI Team SHANGHAI TIANMA MICRO-ELECTRONI

41、CS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTD. 现象：不点灯即可见，变换画面始终为黑色.VIEW ANGLE：正视产生原因：ASSY Align工程中基板间存在Air或N2气泡.BubbleBubble类类BubbleBubble（L L）Manufacture Dept. PI Team Manufacture Dept. PI Team SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTD. 现象：不点灯即可见，变换画面始

42、终为黑色.VIEW ANGLE：正视产生原因：ASSY Align工程中基板间存在Vac.BubbleBubble类类BubbleBubble（S S）Manufacture Dept. PI Team Manufacture Dept. PI Team SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTD. 现象：不点灯即可见，变换画面始终为黑色.VIEW ANGLE：正视产生原因：ASSY Align工程中基板间存在Vac.BubbleBubble类类BubbleBubble其他

43、其他Manufacture Dept. PI Team Manufacture Dept. PI Team SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTD. 现象：Panel四周不规则树支状，多呈深绿色或黑色；不点灯也可见.VIEW ANGLE：正视产生原因：由于Sealant Dispense后到UV CURE间隔过长造成L/C与Sealant接触或是Sealant的宽窄不均导致部分断开，空气冲入也会造成Seal leak.Seal LeakSeal LeakSeal lea

44、kSeal leakManufacture Dept. PI Team Manufacture Dept. PI Team SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTD. SEAL GAP现象：白色边现象：白色边MuraMuraVIEW ANGLEVIEW ANGLE：正视：正视原因：边框处原因：边框处cell Gapcell Gap异常或者其它原因异常或者其它原因注释：对应产线上之前出现的非背光原因的萤火虫现象注释：对应产线上之前出现的非背光原因的萤火虫现象Manufact

45、ure Dept. PI Team Manufacture Dept. PI Team SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTD. 面片内气泡面片内气泡底片内气泡底片内气泡现象：从TFT面看现象与面片内气泡相同，从CF面看颜色比面片内气泡深，且位置较深，在玻璃下方.VIEW ANGLE：正视产生原因：贴片压力不足偏光片偏光片- -气泡气泡Manufacture Dept. PI Team Manufacture Dept. PI Team SHANGHAI TIANMA

46、MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTD. 底片异物底片异物(particle)(particle)面片异物面片异物(particle)(particle)偏光片偏光片- -异物异物现象：明显可见的.VIEW ANGLE：正视产生原因：作业环境洁净度不够；操作员触摸污染LCD.Manufacture Dept. PI Team Manufacture Dept. PI Team SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-

47、ELECTRONICS CO.,LTD. 面片异物面片异物( (绒毛绒毛) )底片异物底片异物( (绒毛绒毛) )偏光片偏光片- -异异现象：明显可见的.VIEW ANGLE：正视产生原因：无尘布绒毛脱落.Manufacture Dept. PI Team Manufacture Dept. PI Team SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTD. 偏光片偏光片- -划伤划伤面片划伤面片划伤底片划伤底片划伤现象：底片划伤，看起来颜色比面片划伤浅，且划痕的位置较深，在玻璃

48、下方VIEW ANGLE：正视产生原因：操作不当；设备或操作平台上有异物；Cassete或吸塑盘上有异物Manufacture Dept. PI Team Manufacture Dept. PI Team SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTD. 偏光片偏光片- -水纹水纹面片水纹面片水纹底片水纹底片水纹现象：有水波纹的现象.VIEW ANGLE：正视产生原因：贴片机参数不良.Manufacture Dept. PI Team Manufacture Dept. PI

49、 Team SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTD. 阶调不良：阶调不良：Manufacture Dept. PI Team Manufacture Dept. PI Team SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTD. CROSS TALK（交叉效应）（交叉效应） 水平水平 CROSS TALK CROSS TALK 垂直垂直 CROSS TAL

50、KCROSS TALKManufacture Dept. PI Team Manufacture Dept. PI Team SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTD. 殘像殘像Manufacture Dept. PI Team Manufacture Dept. PI Team SHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTDSHANGHAI TIANMA MICRO-ELECTRONICS CO.,LTD. 画面输出不良：乱显画面输出