{"title":"a-IGZO TFT AMOLED像素电路补偿阈值电压和迁移率变化","authors":"Shuiping Yi, Jixiang Wu, Congwei Liao, Ying Wang, Xinxin Huo, Shengdong Zhang","doi":"10.23919/AM-FPD.2018.8437423","DOIUrl":null,"url":null,"abstract":"A voltage-programming pixel circuit for AMOLED display on the basis of a-IGZO TFTs is proposed. A diode-connected structure of the driving TFT is used to compensate the variations in threshold voltage (V<inf>TH</inf>) and mobility to reduce the current error rate (CER). The proposed circuit requires only two types of controlling lines. The simulation results show that the CERs are decreased to 5.8% for mobility variations of ±30%, and 11.6% for V<inf>TH</inf> variation of ±0.4V.","PeriodicalId":221271,"journal":{"name":"2018 25th International Workshop on Active-Matrix Flatpanel Displays and Devices (AM-FPD)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":"{\"title\":\"An a-IGZO TFT AMOLED Pixel Circuit to Compensate Threshold Voltage and Mobility Variations\",\"authors\":\"Shuiping Yi, Jixiang Wu, Congwei Liao, Ying Wang, Xinxin Huo, Shengdong Zhang\",\"doi\":\"10.23919/AM-FPD.2018.8437423\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A voltage-programming pixel circuit for AMOLED display on the basis of a-IGZO TFTs is proposed. A diode-connected structure of the driving TFT is used to compensate the variations in threshold voltage (V<inf>TH</inf>) and mobility to reduce the current error rate (CER). The proposed circuit requires only two types of controlling lines. The simulation results show that the CERs are decreased to 5.8% for mobility variations of ±30%, and 11.6% for V<inf>TH</inf> variation of ±0.4V.\",\"PeriodicalId\":221271,\"journal\":{\"name\":\"2018 25th International Workshop on Active-Matrix Flatpanel Displays and Devices (AM-FPD)\",\"volume\":\"35 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2018-07-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"5\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2018 25th International Workshop on Active-Matrix Flatpanel Displays and Devices (AM-FPD)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.23919/AM-FPD.2018.8437423\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2018 25th International Workshop on Active-Matrix Flatpanel Displays and Devices (AM-FPD)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.23919/AM-FPD.2018.8437423","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
An a-IGZO TFT AMOLED Pixel Circuit to Compensate Threshold Voltage and Mobility Variations
A voltage-programming pixel circuit for AMOLED display on the basis of a-IGZO TFTs is proposed. A diode-connected structure of the driving TFT is used to compensate the variations in threshold voltage (VTH) and mobility to reduce the current error rate (CER). The proposed circuit requires only two types of controlling lines. The simulation results show that the CERs are decreased to 5.8% for mobility variations of ±30%, and 11.6% for VTH variation of ±0.4V.
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