公开(公告)号：US10565903B2

公开(公告)日：2020-02-18

申请号：US15988096

申请日：2018-05-24

申请人： BOE Technology Group Co., Ltd.

发明人： Yuanzheng Guo ,  Mingche Hsieh ,  Ping Song ,  Youwei Wang ,  Weinan Dai ,  Mingwen Wang

IPC分类号： H01L35/24 ,  G09F9/30 ,  H01L51/00 ,  G06F1/16

摘要： There are provided a PI substrate, a preparation method thereof and a display device. The preparation method includes: forming a first separable film at an edge region of a substrate; forming a first-layer polyamic acid (PAA) film on the first separable film and the substrate; stripping the first separable film and the first-layer PAA film that covers the first separable film to expose the edge region of the substrate; and performing imidization on the first-layer PAA film on the substrate with the edge region exposed, to enable the first-layer PAA film to be transformed into a first-layer PI film, thereby avoiding uneven film thicknesses at edges of the first-layer PI substrates.

公开(公告)号：US20190051222A1

公开(公告)日：2019-02-14

申请号：US15988096

申请日：2018-05-24

申请人： BOE Technology Group Co., Ltd.

发明人： Yuanzheng Guo ,  Mingche Hsieh ,  Ping Song ,  Youwei Wang ,  Weinan Dai ,  Mingwen Wang

IPC分类号： G09F9/30 ,  H01L51/00

CPC分类号： G09F9/301 ,  G06F1/1652 ,  H01L27/1218 ,  H01L27/124 ,  H01L27/1266 ,  H01L27/32 ,  H01L51/0097

摘要： There are provided a PI substrate, a preparation method thereof and a display device. The preparation method includes: forming a first separable film at an edge region of a substrate; forming a first-layer polyamic acid (PAA) film on the first separable film and the substrate; stripping the first separable film and the first-layer PAA film that covers the first separable film to expose the edge region of the substrate; and performing imidization on the first-layer PAA film on the substrate with the edge region exposed, to enable the first-layer PAA film to be transformed into a first-layer PI film, thereby avoiding uneven film thicknesses at edges of the first-layer PI substrates.

公开(公告)号：US10926198B2

公开(公告)日：2021-02-23

申请号：US15770301

申请日：2017-10-27

申请人： BOE Technology Group Co., Ltd. ,  Chengdu BOE Optoelectronics Technology Co., Ltd.

发明人： Zhenrui Fan ,  Zhong Lu ,  Wenxuan Zhang ,  Li Xiong ,  Cheng Tang ,  Mingwen Wang ,  Jianbo Yang ,  Hongguang Yuan ,  Wei Lin ,  Donghua Jiang

IPC分类号： B01D19/00 ,  D21D1/20 ,  D21D5/26 ,  G02F1/1337 ,  G02F1/13

摘要： This disclosure provides a deaeration apparatus comprising: a closable deaeration cavity configured to accommodate a liquid to be deaerated; a heating member configured to heat the deaeration cavity; a temperature detection member configured to detect a temperature inside the deaeration cavity; and a controller configured to receive the temperature detected by the temperature detection member and control the heating member based on the temperature. When using in deaeration of a liquid, the deaeration apparatus of the disclosure can shorten the deaeration time and improve the deaeration efficiency of the liquid.