公开(公告)号：JPH11242225A

公开(公告)日：1999-09-07

申请号：JP18583698

申请日：1998-06-11

Applicant: SHARP KK

Inventor： TAKEDA TOMOHIRO ,  KOIKE YOSHIRO ,  SASAKI TAKAHIRO ,  MURATA SATOSHI ,  HASEGAWA TADASHI ,  INOUE HIROYASU ,  OTANI MINORU ,  IKEDA MASAHIRO ,  TANIGUCHI YOJI ,  YOSHIDA HIDESHI ,  TSUDA HIDEAKI ,  OMURO KATSUFUMI ,  SENDA HIDEO ,  TSUKAHIRO KOUJI ,  TASAKA YASUTOSHI ,  OKAMOTO KENJI ,  MAYAMA TAKEMUNE ,  TANUMA SEIJI ,  NAKANISHI YOHEI ,  TASHIRO KUNIHIRO ,  KATAOKA SHINGO ,  OHASHI MAKOTO ,  YAMAGUCHI HISASHI ,  MORISHIGE OSAMU ,  FURUKAWA KUNIAKI ,  KAMATA TAKESHI ,  TANAKA YOSHINORI ,  HOSHINO ATSUYUKI ,  HAYASHI SHOGO ,  TAKIZAWA HIDEAKI ,  KANESHIRO TAKESHI ,  KITSUKI MAKOTO ,  IMOTO KEIJI ,  SASABAYASHI TAKASHI ,  FUJIKAWA TETSUYA ,  SAWAZAKI MANABU ,  TANOSE TOMONORI ,  HIROTA SHIRO

IPC: G02B5/20 ,  G02B5/30 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/13363 ,  G02F1/1337 ,  G02F1/1339 ,  G02F1/1343 ,  G02F1/136 ,  G02F1/1368 ,  G02F1/137 ,  G02F1/139 ,  G09F9/30 ,  G09F9/35

Abstract: PROBLEM TO BE SOLVED: To provide the liquid crystal display device of a VA (vertically aligned) type with excellent visual angle characteristics while keeping contrast and operation speed, etc., as excellent as before. SOLUTION: For this liquid crystal display device, liquid crystal whose dielectric constant anisotropy is negative is clamped between first and second substrates 12 and 13 for which a vertical alignment processing is executed to a substrate surface and the alignment of the liquid crystal becomes almost vertical when not applying a voltage, becomes almost horizontal in applying a prescribed voltage and becomes oblique applying the voltage smaller than a prescribed voltage. In this case, a first domain control means for controlling the alignment direction of the liquid crystal in applying the voltage smaller than the prescribed voltage is provided on the first substrate 12. Then, the first domain control means is provided with a first structure (20A, 23) for turning a part of the contact surface with the liquid crystal of the first substrate 12 to a slope provided on the first substrate 12, it is aligned almost vertically to the slope when not applying the voltage and the alignment direction of the surrounding liquid crystal is decided by the alignment direction around the slope when the voltage is applied.