公开(公告)号：US6122026A

公开(公告)日：2000-09-19

申请号：US877521

申请日：1997-06-17

申请人： Tomoo Takatani ,  Takeyuki Ashida

发明人： Tomoo Takatani ,  Takeyuki Ashida

IPC分类号： G02B5/02 ,  G02B5/30 ,  G02F1/133 ,  G02F1/1335 ,  G02F1/13363 ,  G02F1/139 ,  G02F1/13

CPC分类号： G02F1/13363 ,  G02F1/133504 ,  G02F1/1397 ,  G02F2413/02 ,  G02F2413/08 ,  G02F2413/12

摘要： A sufficiently wide viewing angle characteristic is obtained while a sufficient front contrast is ensured. With respect to the light transmitted by a polarizing plate and a phase difference plate before exiting from a liquid crystal display device, the viewing angle in the 12-6 o'clock direction is improved by a phase difference plate. By a light diffusing plate, a sufficient front contrast is ensured by causing the light to exit in the direction of the normal and the light is diffused in the 9-3 o'clock direction where the viewing angle is not improved by the phase difference plate. In the case where the light diffusing plate has a double refractivity, the liquid crystal display apparatus is arranged so that the light is transmitted by the light diffusing plate after transmitted by a polarizing plate. In the case where the light diffusing plate has no double refractivity, the liquid crystal display apparatus is arranged so that the light is transmitted by the polarizing plate after transmitted by the light diffusing plate.

摘要翻译： 在确保足够的正面对比度的同时获得足够宽的视角特性。 对于从液晶显示装置射出之前由偏光板和相位差板透射的光，通过相位差板改善12-6点钟方向的视角。 通过光扩散板，通过使光沿法线方向退出并且光在相位差板没有改善视角的9-3点钟方向上扩散，从而确保足够的前方对比度 。 在光漫射板具有双重折射率的情况下，液晶显示装置被布置成使得光被透射后的偏振片透过。 在光扩散板不具有双重折射率的情况下，液晶显示装置被布置成使得光在被光扩散板透射之后被偏振片透射。

公开(公告)号：US5737048A

公开(公告)日：1998-04-07

申请号：US747671

申请日：1996-11-12

申请人： Adiel Abileah ,  Gang Xu

发明人： Adiel Abileah ,  Gang Xu

IPC分类号： G02F1/1335 ,  G02F1/13363 ,  G02F1/1337 ,  G02F1/139

CPC分类号： G02F1/13363 ,  G02F1/133634 ,  G02F1/133784 ,  G02F1/1396 ,  G02F2001/133531 ,  G02F2202/40 ,  G02F2413/01 ,  G02F2413/02 ,  G02F2413/08 ,  G02F2413/12 ,  G02F2413/13

摘要： A normally white liquid crystal display is provided with a positively birefringent uniaxial retardation film having a retardation value of from about 100-200 nm. The retardation film is provided on one side of the liquid crystal layer, the liquid crystal being sandwiched between a pair of orientation or buffing films which orient the liquid crystal molecules adjacent thereto in predetermined directions. The optical axis of the retardation film is rotated from about 2.degree.-20.degree., most preferably from about 6.degree.-10.degree. relative to the buffing direction on the opposite side of the liquid crystal layer. This rotation of the retardation film optical axis allows for the high contrast ratio viewing zone of the display to be shifted vertically into either the positive or negative vertical viewing region depending upon the direction of rotation of the retardation film optical axis. Alternatively, biaxial retardation films having similar retardation values may be utilizied according to the teachings of this invention.

摘要翻译： 正常白色液晶显示器具有正双折射单轴延迟膜，其延迟值为约100-200nm。 延迟膜设置在液晶层的一侧，液晶被夹在一定向或抛光膜之间，使得与预定方向相邻的液晶分子。 延迟膜的光轴相对于液晶层的相反侧的抛光方向从约2°-20°，最优选约6°-10°旋转。 延迟膜光轴的旋转允许显示器的高对比度观察区域根据延迟膜光轴的旋转方向垂直移动到正或负垂直观看区域中。 或者，根据本发明的教导，可以利用具有相似延迟值的双轴延迟膜。

公开(公告)号：US4701028A

公开(公告)日：1987-10-20

申请号：US734484

申请日：1985-05-16

申请人： Jean-Frederic Clerc ,  Jean-Claude Deutsch

发明人： Jean-Frederic Clerc ,  Jean-Claude Deutsch

IPC分类号： G02F1/133 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/13363 ,  G02F1/1347 ,  G02F1/137 ,  G02F1/139 ,  G09F9/35 ,  G02F1/13

CPC分类号： G02F1/13363 ,  G02F1/13471 ,  G02F1/1393 ,  G02F2413/02 ,  G02F2413/12

摘要： Liquid crystal cell having a homeotropic structure, with compensated birefringence for said structure.The cell comprises a liquid crystal layer which can have a hometropic structure and electrodes located on either side of the layer and whereof at least one is transparent. It also comprises means for compensating the birefringence of the liquid crystal layer in its homeotropic structure, so that the cell has a high contrast for said structure, in the case of an oblique observation made in a given observation plane.Application to the construction of data display means.

摘要翻译： 具有垂直结构的液晶单元，具有用于所述结构的补偿双折射。 该电池包括可以具有远光结构的液晶层和位于该层的任一侧上的电极，并且至少一个透明的电极。 它还包括用于在其垂直结构中补偿液晶层的双折射的装置，使得在给定观察平面中进行倾斜观察的情况下，该单元对于所述结构具有高对比度。 应用于数据显示手段的构建。

公开(公告)号：US4080046A

公开(公告)日：1978-03-21

申请号：US689659

申请日：1976-05-24

申请人： Masashi Nishizaki

发明人： Masashi Nishizaki

IPC分类号： G02F1/13363 ,  G02F1/139 ,  G02F1/13

CPC分类号： G02F1/13363 ,  G02F1/1396 ,  G02F2001/133637 ,  G02F2413/01 ,  G02F2413/12

摘要： In combination with a field-effect mode liquid crystal display which comprises a pair of polarizers and a field-effect mode liquid crystal display cell containing a liquid crystal composition having positive dielectric anisotropy characteristics, a retardation plate is placed between the liquid crystal display cell and one of the polarizers. The retardation plate creates phase differences of discriminative degrees in dependence on the differences of the wave length of the light passing therethrough. The images appear in one color on the complementary color background.

摘要翻译： 与包含一对偏振器的场效应模式液晶显示器和包含具有正介电各向异性特性的液晶组合物的场效应模式液晶显示单元相结合，在液晶显示单元和 偏光器之一。 延迟板根据通过其中的光的波长的差异产生鉴别度的相位差。 图像在补色背景上以一种颜色显示。

公开(公告)号：US11927850B2

公开(公告)日：2024-03-12

申请号：US18195917

申请日：2023-05-10

申请人： Sharp Display Technology Corporation

发明人： Yuichi Kawahira ,  Masahiro Hasegawa ,  Ryosuke Saigusa ,  Akira Sakai

IPC分类号： G02F1/13363 ,  G02B27/01 ,  G02F1/1335 ,  G06F1/16

CPC分类号： G02F1/133634 ,  G02B27/0172 ,  G02F1/133531 ,  G02F1/133536 ,  G02F1/133567 ,  G06F1/163 ,  G02F2413/01 ,  G02F2413/02 ,  G02F2413/06 ,  G02F2413/08 ,  G02F2413/12

摘要： Provided is a liquid crystal display device having high luminance and high CR in a front direction and especially useful as a head-mounted liquid crystal display device, for example. The liquid crystal display device includes: a liquid crystal panel; an optical element; and a backlight, arranged in this order from a viewing surface side. The optical element includes a first polarizer, a retardation layer, and a second polarizer. The first polarizer, the retardation layer, and the second polarizer are arranged in this order from the viewing surface side. The first polarizer and the second polarizer are reflection polarizers. A reflection axis of the first polarizer and a reflection axis of the second polarizer are parallel to each other. In oblique directions at azimuths of 0°, 45°, and 90° at a polar angle of 60°, a polarization state of light incident on the first polarizer is elliptical polarization.

公开(公告)号：US20230176405A1

公开(公告)日：2023-06-08

申请号：US17980560

申请日：2022-11-04

申请人： Coretronic Corporation

发明人： Ping-Yen Chen ,  Chung-Yang Fang ,  Chun-Wei Lee ,  Jung-Wei Chang

IPC分类号： G02F1/13 ,  G02F1/1337 ,  G02F1/1347 ,  G02F1/1335 ,  G02F1/13363 ,  G02F1/137 ,  G09G3/36

CPC分类号： G02F1/1323 ,  G02F1/133757 ,  G02F1/1347 ,  G02F1/133531 ,  G02F1/133638 ,  G02F1/137 ,  G09G3/36 ,  G02F2413/03 ,  G02F2413/08 ,  G02F2413/06 ,  G02F2413/05 ,  G02F2413/12 ,  G02F2413/01 ,  G09G2320/068 ,  G09G2358/00

摘要： A display apparatus including a backlight module, first and second electrically-controlled elements, electrically-controlled first and second polarizers, a half-wave plate, and a display panel is provided. An included angle between first and second alignment directions of first and second alignment layers of the first electrically-controlled element is between 75 degrees and 105 degrees. An included angle between third and fourth alignment directions of third and fourth alignment layers of the second electrically-controlled element is between 165 degrees and 195 degrees. A first absorption axis of the first polarizer disposed between the backlight module and the first electrically-controlled element is perpendicular to a second absorption axis of the second polarizer disposed between the first and second electrically-controlled elements. The half-wave plate is disposed between the second polarizer and the second electrically-controlled element. The display panel is disposed on the second electrically-controlled element. A method of driving the display apparatus is provided.

公开(公告)号：US20170336675A1

公开(公告)日：2017-11-23

申请号：US15432089

申请日：2017-02-14

申请人： Samsung Display Co. Ltd.

发明人： Sang Jae KIM ,  Kwang Hyun KIM ,  Young Jin PARK ,  Yun JANG

IPC分类号： G02F1/1335 ,  G02F1/13363

CPC分类号： G02F1/133536 ,  G02F1/133528 ,  G02F1/133606 ,  G02F1/133617 ,  G02F1/133634 ,  G02F1/133636 ,  G02F1/134363 ,  G02F1/13725 ,  G02F2001/133531 ,  G02F2001/133548 ,  G02F2001/133565 ,  G02F2001/133614 ,  G02F2201/123 ,  G02F2202/043 ,  G02F2202/36 ,  G02F2413/12

摘要： A display device, in which a plurality of pixels is defined, includes: a first insulating substrate; a polarizer disposed on a surface of the first insulating substrate; a second insulating substrate which faces the surface of the first insulating substrate; and a liquid crystal layer interposed between the polarizer and the second insulating substrate, where the liquid crystal layer includes liquid crystals and a dichroic dye.

公开(公告)号：US20160062012A1

公开(公告)日：2016-03-03

申请号：US14842727

申请日：2015-09-01

申请人： SAMSUNG SDI CO., LTD.

发明人： Kwang Ho Shin ,  Eun Su Park ,  Dong Yoon Shin ,  Hae Ryong Chung

IPC分类号： G02B5/30 ,  G02B1/14 ,  G02F1/13363 ,  G02F1/1335

CPC分类号： G02B5/305 ,  B32B2457/202 ,  G02B1/14 ,  G02B5/3033 ,  G02B5/3083 ,  G02F1/133528 ,  G02F1/13363 ,  G02F1/133634 ,  G02F2001/133531 ,  G02F2202/40 ,  G02F2413/12

摘要： A polarizing plate includes a polarizer, and a polyester film formed on one or both surfaces of the polarizer. The polyester film has a tensile strength ratio of about 3 or greater, as calculated by Equation 4, and an orientation displacement (°) of about −5° to about +5° with respect to a transverse direction (slow axis) of the polyester film at a wavelength of 550 nm. A liquid crystal display apparatus includes the polarizing plate. Tensile strength ratio=TD tensile strength/MD tensile strength.  Equation 4

摘要翻译： 偏振片包括偏振器，以及形成在偏振器的一个或两个表面上的聚酯膜。 聚酯膜的拉伸强度比为约3以上，如式4所示，相对于聚酯的横向（慢轴），取向位移（°）约为-5°〜约+ 5° 膜的波长为550nm。 液晶显示装置包括偏光板。 拉伸强度比= TD拉伸强度/ MD拉伸强度。 公式4

公开(公告)号：US09223172B2

公开(公告)日：2015-12-29

申请号：US13963612

申请日：2013-08-09

申请人： SAMSUNG DISPLAY CO., LTD.

发明人： Kyeong-Hyeon Kim ,  Jang-Kun Song

IPC分类号： G02F1/1335 ,  G02F1/13363

CPC分类号： G02F1/133528 ,  G02F1/13363 ,  G02F2202/40 ,  G02F2413/01 ,  G02F2413/12

摘要： A liquid crystal display comprises: first and second panels facing each other; a compensation film and a first polarizer disposed on the first panel, the compensation film having phase retardation characteristics; and a second polarizer having a supporting film disposed on the second panel, the supporting film having phase retardation characteristics. In alternative embodiments, a supporting film is used in place of the compensation film. The supporting film has retardation characteristics.

公开(公告)号：US09213200B2

公开(公告)日：2015-12-15

申请号：US13981100

申请日：2013-06-27

申请人： Shenzhen China Star Optoelectronics Technology Co., Ltd.

发明人： Chih-tsung Kang ,  Bo Hai

IPC分类号： G02F1/1335 ,  G02F1/13363

CPC分类号： G02F1/13363 ,  G02F1/133528 ,  G02F2001/133531 ,  G02F2001/133638 ,  G02F2413/02 ,  G02F2413/03 ,  G02F2413/05 ,  G02F2413/06 ,  G02F2413/12

摘要： A liquid crystal panel and a liquid crystal display are disclosed. The liquid crystal display includes a liquid crystal cell having a light incident side and a light emitting side, a first polarizer arranged on the light incident side of the liquid crystal panel, a second polarizer arranged on the light emitting side of the liquid crystal panel, and a half wave plate arranged between the first polarizer and the liquid crystal cell. An absorbing axis of the first polarizer is parallel to the absorbing axis of the second polarizer, and an angle between a slow axis of the half wave plate and the absorbing axis of the first polarizer is 45 or 135 degrees. In this way, the liquid crystal display with the two polarizers parallel to each other can be in all-black state when no voltage is applied. In addition, the contrast is greatly enhanced.

摘要翻译： 公开了液晶面板和液晶显示器。 液晶显示器包括具有光入射侧和发光侧的液晶单元，布置在液晶面板的光入射侧的第一偏振片，配置在液晶面板的发光侧的第二偏振片， 以及布置在第一偏振器和液晶单元之间的半波片。 第一偏振片的吸收轴平行于第二偏振片的吸收轴，半波片的慢轴与第一偏振片的吸收轴之间的角度为45度或135度。 以这种方式，当没有施加电压时，具有彼此平行的两个偏振器的液晶显示器可以处于全黑色状态。 此外，对比度大大提高。