公开(公告)号：US5781266A

公开(公告)日：1998-07-14

申请号：US312410

申请日：1994-09-26

Applicant: Kenji Nakao ,  Hiroyuki Ohnishi ,  Naohide Wakita ,  Kazuya Nagao ,  Naomi Takada

Inventor： Kenji Nakao ,  Hiroyuki Ohnishi ,  Naohide Wakita ,  Kazuya Nagao ,  Naomi Takada

IPC: G02F1/141

CPC classification number: G02F1/1416

Abstract: A ferroelectric liquid crystal display device of the present invention includes: a pair of substrates; a ferroelectric liquid crystal layer provided between the pair of substrates; and an electrode for applying a voltage to the ferroelectric liquid crystal layer, wherein the ferroelectric liquid crystal layer has bent smectic layers, and an effective bend angle .theta.L of the bent smectic layers satisfies the relationship: .theta.Leff>.theta.L>0.degree. in a temperature range in which the ferroelectric liquid crystal display device is stored, where an effective bend angle of the smectic layers in a first state is .theta.Leff, the first state being obtained by cooling the ferroelectric liquid crystal layer from a temperature higher than a phase transition temperature of a chiral smectic C phase--a smectic A phase to a temperature not higher than a phase transition temperature of the chiral smectic C phase--the smectic A phase.

Abstract translation: 本发明的铁电液晶显示装置包括：一对基板; 设置在所述一对基板之间的铁电液晶层; 以及用于向铁电液晶层施加电压的电极，其中所述铁电液晶层具有弯曲的近晶层，并且所述弯曲近晶层的有效弯曲角θL满足以下关系：θLeff>θL> 0° 存储铁电液晶显示装置的温度范围，其中在第一状态下的近晶层的有效弯曲角为θLeff，第一状态是通过从高于相位的温度冷却铁电液晶层而获得的 手性近晶C相 - 近晶A相的转变温度不高于手性近晶C相的相转变温度 - 近晶A相。

公开(公告)号：US5610739A

公开(公告)日：1997-03-11

申请号：US450622

申请日：1995-05-25

Applicant: Mitsuhiro Uno ,  Yoneharu Takubo ,  Katsuhiko Kumagawa ,  Satoshi Asada ,  Naomi Takada

Inventor： Mitsuhiro Uno ,  Yoneharu Takubo ,  Katsuhiko Kumagawa ,  Satoshi Asada ,  Naomi Takada

IPC: G02F1/1335 ,  G02F1/1343 ,  G02F1/1362 ,  G02F1/136

CPC classification number: G02F1/136213 ,  G02F1/133512 ,  G02F2001/134345 ,  G02F2001/134354

Abstract: A liquid crystal display unit including a plurality of subpixels in each pixel provides superior gradation over a wide viewing angle, and is produced with no increase in manufacturing cost and no deterioration of desired properties (such as reduction in brightness, contrast and response). No additional manufacturing step is required since a control capacitor electrode is formed at the same time as source and drain electrodes constituting a thin-film transistor. By controlling the ratio of display area and the difference in applied voltage of the subpixels, preferable viewing angle properties are obtained. The display properties at the boundary of subpixels are improved by controlling the gap width and the direction of boundary of the subpixels, thus providing a bright display.

Abstract translation: 在每个像素中包括多个子像素的液晶显示单元在宽视角上提供优异的等级，并且不会增加制造成本并且不会降低期望的性能（诸如亮度，对比度和响应的降低）。 不需要额外的制造步骤，因为控制电容器电极与构成薄膜晶体管的源极和漏极同时形成。 通过控制显示区域的比例和子像素的施加电压的差异，可以获得优选的视角特性。 通过控制子像素的间隙宽度和边界方向来改善子像素边界处的显示特性，从而提供明亮的显示。

公开(公告)号：US5748276A

公开(公告)日：1998-05-05

申请号：US762419

申请日：1996-12-09

Applicant: Mitsuhiro Uno ,  Yoneharu Takubo ,  Katsuhiko Kumagawa ,  Satoshi Asada ,  Naomi Takada

Inventor： Mitsuhiro Uno ,  Yoneharu Takubo ,  Katsuhiko Kumagawa ,  Satoshi Asada ,  Naomi Takada

IPC: G02F1/1335 ,  G02F1/1343 ,  G02F1/1362 ,  G09G3/36

CPC classification number: G02F1/136213 ,  G02F1/133512 ,  G02F2001/134345 ,  G02F2001/134354

Abstract: A liquid crystal display unit including a plurality of subpixels in each pixel provides superior gradation over a wide viewing angle, and is produced with no increase in manufacturing cost and no deterioration of desired properties (such as reduction in brightness, contrast and response). No additional manufacturing step is required since a control capacitor electrode is formed at the same time as source and drain electrodes constituting a thin-film transistor. By controlling the ratio of display area and the difference in applied voltage of the subpixels, preferable viewing angle properties are obtained. The display properties at the boundary of subpixels are improved by controlling the gap width and the direction of boundary of the subpixels, thus providing a bright display.

Abstract translation: 在每个像素中包括多个子像素的液晶显示单元在宽视角上提供优异的等级，并且不会增加制造成本并且不会降低期望的性能（诸如亮度，对比度和响应的降低）。 不需要额外的制造步骤，因为控制电容器电极与构成薄膜晶体管的源极和漏极同时形成。 通过控制显示区域的比例和子像素的施加电压的差异，可以获得优选的视角特性。 通过控制子像素的间隙宽度和边界方向来改善子像素边界处的显示特性，从而提供明亮的显示。