公开(公告)号：US09395584B2

公开(公告)日：2016-07-19

申请号：US14163207

申请日：2014-01-24

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Yoshiharu Hirakata ,  Yuugo Goto ,  Yuko Kobayashi ,  Shunpei Yamazaki

IPC: H01L27/14 ,  G02F1/1339 ,  H01L29/786 ,  G02F1/1333 ,  H01L27/12 ,  G02F1/1345

CPC classification number: G02F1/13394 ,  G02F1/13306 ,  G02F1/133345 ,  G02F1/13338 ,  G02F1/133512 ,  G02F1/1341 ,  G02F1/134309 ,  G02F1/13454 ,  G02F1/1368 ,  G02F2001/133302 ,  H01L27/12 ,  H01L27/1214 ,  H01L27/1222 ,  H01L27/124 ,  H01L27/1288 ,  H01L29/167 ,  H01L29/78621 ,  H01L29/78627 ,  H01L29/78669 ,  H01L2029/7863 ,  H01L2924/0002 ,  Y10S438/924 ,  Y10S438/98 ,  H01L2924/00

Abstract: There is provided a high quality liquid crystal panel having a thickness with high accuracy, which is designed, without using a particulate spacer, within a free range in accordance with characteristics of a used liquid crystal and a driving method, and is also provided a method of fabricating the same. The shape of a spacer for keeping a substrate interval constant is made such that it is a columnar shape, a radius R of curvature is 2 μm or less, a height H is 0.5 μm to 10 μm, a diameter is 20 μm or less, and an angle α is 65° to 115°. By doing so, it is possible to prevent the lowering of an opening rate and the lowering of light leakage due to orientation disturbance.