JP2001242320A - Polarizing element and liquid crystal display device - Google Patents
Polarizing element and liquid crystal display deviceInfo
- Publication number
- JP2001242320A JP2001242320A JP2000055591A JP2000055591A JP2001242320A JP 2001242320 A JP2001242320 A JP 2001242320A JP 2000055591 A JP2000055591 A JP 2000055591A JP 2000055591 A JP2000055591 A JP 2000055591A JP 2001242320 A JP2001242320 A JP 2001242320A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- polarizing element
- crystal display
- polarizing
- light absorption
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133528—Polarisers
- G02F1/133531—Polarisers characterised by the arrangement of polariser or analyser axes
Landscapes
- Polarising Elements (AREA)
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
Description
【０００１】[0001]
【発明の技術分野】本発明は、視野角やコントラストや
表示の均一性に優れる液晶表示装置を形成しうる偏光素
子に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a polarizing element capable of forming a liquid crystal display device having excellent viewing angle, contrast and display uniformity.
【０００２】[0002]
【従来の技術】従来、ポリビニルアルコール系フィルム
にヨウ素等を含有させて一軸延伸した偏光フィルムに透
明保護層を設けてなる偏光板に光学補償用の位相差板を
積層したものが知られていた（特許公報第２８４３４３
１号）。これは、光吸収軸が板の平面内にある偏光板の
視野角特性が液晶表示装置の視角変化に対する表示特性
に影響することに鑑みて視野角による偏光軸の回転や透
明保護層による複屈折を位相差板で補償するようにした
ものである。2. Description of the Related Art Heretofore, there has been known a polarizing plate in which iodine and the like are contained in a polyvinyl alcohol-based film and a uniaxially stretched polarizing film is provided with a transparent protective layer, and a retardation plate for optical compensation is laminated on the polarizing plate. (Patent Publication No. 284343
No. 1). This is because the viewing angle characteristics of the polarizing plate whose light absorption axis is in the plane of the plate affect the display characteristics with respect to the viewing angle change of the liquid crystal display device. Is compensated by the phase difference plate.
【０００３】しかしながら、液晶表示パネルには例えば
ツイストネマチック（ＴＮ）モードや垂直配向モード、
水平配向モード等の各種のモードがあり、視野角の拡大
等の光学補償にはそのモードに特有の補償特性が求めら
れて、従来の位相差板を積層した偏光板ではそれらの要
求に応じることが困難な問題点があった。However, a liquid crystal display panel has, for example, a twisted nematic (TN) mode, a vertical alignment mode,
There are various modes such as horizontal alignment mode, and optical compensation such as expansion of the viewing angle requires compensation characteristics specific to that mode, and a polarizing plate with a laminated phase difference plate must meet those requirements. There was a difficult problem.
【０００４】[0004]
【発明の技術的課題】本発明は、各種モードの液晶表示
パネルの光学補償に要求される特性に幅広く対応できる
偏光素子の開発を課題とする。SUMMARY OF THE INVENTION An object of the present invention is to develop a polarizing element which can widely cope with characteristics required for optical compensation of a liquid crystal display panel in various modes.
【０００５】[0005]
【課題の解決手段】本発明は、二色性物質を保持してな
り、その光吸収軸が素子平面に対して垂直状態又は傾斜
状態にあることを特徴とする偏光素子、及びその偏光素
子を液晶表示パネルの片側又は両側に有することを特徴
とする液晶表示装置を提供するものである。According to the present invention, there is provided a polarizing element comprising a dichroic substance, the light absorption axis of which is in a state perpendicular or inclined with respect to a plane of the element. A liquid crystal display device provided on one or both sides of a liquid crystal display panel is provided.
【０００６】[0006]
【発明の効果】本発明によれば、光吸収軸が厚さ方向な
どにある偏光素子を得ることができ、それを光吸収軸が
板の平面内にある従来の偏光板と組合せることにより二
色比が高く、視角の変化で偏光特性が変化しにくい広視
野角な偏光素子を得ることができる。According to the present invention, a polarizing element having a light absorption axis in the thickness direction or the like can be obtained, and by combining it with a conventional polarizing plate having a light absorption axis in the plane of the plate. It is possible to obtain a polarizing element having a high dichroic ratio and a wide viewing angle in which the polarization characteristics are hardly changed by a change in the viewing angle.
【０００７】[0007]
【発明の実施形態】本発明による偏光素子は、二色性物
質を保持してなり、その光吸収軸が例えば素子の厚さ方
向の如く素子平面に対して垂直状態又は傾斜状態にある
ものからなる。従って本発明においては二色性物質を介
した光吸収軸が素子平面の方向になければよい。BEST MODE FOR CARRYING OUT THE INVENTION A polarizing element according to the present invention comprises a dichroic substance whose light absorption axis is perpendicular or inclined with respect to the element plane, for example, in the thickness direction of the element. Become. Therefore, in the present invention, the light absorption axis via the dichroic substance need not be in the direction of the element plane.
【０００８】偏光素子の形成は、光吸収軸の方向を決定
する二色性物質の配置状態を制御しうる適宜な方法にて
行うことができる。ちなみにその例としては、二色性の
染料や色素等からなる二色性物質を液晶成分と混合し、
その混合液を展開して配向層を形成する方法などがあげ
られる。液晶成分には例えばネマチック型やスメクチッ
ク型、コレステリック型やディスコチック型、ホメオト
ロピック型やリオトロピック型等の各種の配向特性を示
す液晶や液晶ポリマーなどの適宜なものの１種又は２種
以上を用いうる。正負いずれの材料であってもよい。[0008] The polarizing element can be formed by an appropriate method capable of controlling the arrangement state of the dichroic substance that determines the direction of the light absorption axis. By the way, as an example, a dichroic substance such as a dichroic dye or pigment is mixed with a liquid crystal component,
A method of developing the mixed solution to form an alignment layer may, for example, be mentioned. As the liquid crystal component, for example, one or more appropriate ones such as a liquid crystal or a liquid crystal polymer exhibiting various alignment characteristics such as a nematic type, a smectic type, a cholesteric type, a discotic type, a homeotropic type, and a lyotropic type can be used. . Both positive and negative materials may be used.
【０００９】液晶成分の配向処理には、配向膜や配向基
材、電場や磁場等の適宜な配向手段を適用することがで
きる。ちなみにホメオトロピック型の液晶成分では、垂
直配向膜を介してホメオトロピック配向させることによ
り厚さ方向の光吸収軸を有する偏光素子を得ることがで
きる。またリオトロピック液晶等（ＷＯ９７／３９３８
０号公報）を用いても厚さ方向の光吸収軸を有する偏光
素子を得ることができる。二色性染料含有のリオトロピ
ック液晶は、例えばＯｐｔｉｖａ社などより市販されて
いる。For the alignment treatment of the liquid crystal component, an appropriate alignment means such as an alignment film, an alignment substrate, an electric field or a magnetic field can be applied. Incidentally, in the case of the homeotropic liquid crystal component, a polarizing element having a light absorption axis in the thickness direction can be obtained by homeotropic alignment through the vertical alignment film. In addition, lyotropic liquid crystals (WO97 / 3938)
No. 0) can be used to obtain a polarizing element having a light absorption axis in the thickness direction. Lyotropic liquid crystals containing a dichroic dye are commercially available, for example, from Optiva.
【００１０】偏光素子には必要に応じてその片側又は両
側に透明保護層を設けることができる。透明保護層の形
成には、適宜な透明ポリマーからなるフィルムを用いる
ことができ、そのポリマーについて特に限定はない。就
中、透明性や機械的強度、熱安定性や水分遮蔽性等に優
れるものが好ましく用いうる。また透明保護層は、フィ
ルムに延伸処理や配向処理を施したものであってもよ
く、さらに液晶組成物をコートしたり含浸させたものな
どであってもよい。A transparent protective layer can be provided on one side or both sides of the polarizing element as required. For forming the transparent protective layer, a film made of an appropriate transparent polymer can be used, and the polymer is not particularly limited. In particular, those excellent in transparency, mechanical strength, heat stability, moisture shielding property, and the like can be preferably used. Further, the transparent protective layer may be obtained by subjecting a film to a stretching treatment or an orientation treatment, or may be a film obtained by coating or impregnating a liquid crystal composition.
【００１１】なお前記したポリマーの例としては、トリ
アセチルセルロースの如きアセテート系樹脂やポリエチ
レンテレフタレート、ポリエチレンナフタレートの如き
ポリエステル系樹脂、ポリエーテルスルホン系樹脂やポ
リカーボネート系樹脂、ポリアミド系樹脂やポリイミド
系樹脂、ポリスルホン系樹脂やポリスチレン系樹脂、ア
クリル系樹脂やポリオレフィン系樹脂、ノルボルネン系
樹脂やアリレート系樹脂、それらの変性物などがあげら
れる。透明保護層の厚さは、強度等に応じて適宜に決定
しうるが一般には軽量化等を目的に３００μm以下、就
中５〜２００μm、特に１０〜１５０μmとされる。透明
保護層は、微粒子の含有などによりその表面が微細凹凸
構造に形成されていてもよい。Examples of the above-mentioned polymers include acetate resins such as triacetyl cellulose, polyester resins such as polyethylene terephthalate and polyethylene naphthalate, polyether sulfone resins and polycarbonate resins, polyamide resins and polyimide resins. And polysulfone resins, polystyrene resins, acrylic resins and polyolefin resins, norbornene resins and allylate resins, and modified products thereof. The thickness of the transparent protective layer can be appropriately determined according to the strength and the like, but is generally 300 μm or less, preferably 5 to 200 μm, particularly 10 to 150 μm for the purpose of weight reduction or the like. The surface of the transparent protective layer may be formed in a fine uneven structure by the inclusion of fine particles.
【００１２】本発明による偏光素子は、液晶表示装置の
形成などに好ましく用いうる。その実用に際しては、例
えば液晶表示パネル等の他部材との接着を目的に偏光素
子の片側又は両側に粘着層を設けた形態、偏光板や位相
差層等の適宜な光学層の１層又は２層以上と積層した形
態などとして用いることもできる。偏光板や位相差層等
の光学層との積層は、液晶表示装置の製造過程で順次別
個に積層する方式にても行いうるが、予め積層一体化す
ることより光軸のズレ等による品質のバラツキが生じに
くく、液晶表示装置の組立効率に優れるなどの利点を有
している。The polarizing element according to the present invention can be preferably used for forming a liquid crystal display. In practical use, for example, a form in which an adhesive layer is provided on one or both sides of a polarizing element for the purpose of bonding to another member such as a liquid crystal display panel, or one or two suitable optical layers such as a polarizing plate and a retardation layer It can also be used as a form laminated with more than one layer. Lamination with an optical layer such as a polarizing plate or a retardation layer can also be performed by a method of sequentially laminating sequentially in the manufacturing process of the liquid crystal display device. The liquid crystal display device has advantages such as less variation and excellent assembly efficiency of the liquid crystal display device.
【００１３】前記の粘着層には、例えばアクリル系やシ
リコーン系、ポリエステル系やポリウレタン系、ポリエ
ーテル系やゴム系などの適宜なものを用いることができ
特に限定はない。就中、耐熱性や光学特性などの点より
アクリル系のものが好ましく用いられる。粘着層には、
必要に応じて例えば天然物や合成物の樹脂類、ガラス繊
維やガラスビーズ、金属粉やその他の無機粉末等からな
る充填剤や顔料、着色剤や酸化防止剤などの適宜な添加
剤を配合することもできる。また微粒子を含有させて光
拡散性を示す粘着層とすることもできる。なお偏光板や
位相差板等との積層には適宜な接着剤を用いうるが、熱
応力の抑制による光学特性の維持性などの点よりは粘着
層が好ましく用いうる。The pressure-sensitive adhesive layer may be made of any suitable material such as acrylic, silicone, polyester, polyurethane, polyether, or rubber, and is not particularly limited. Above all, acrylic ones are preferably used in terms of heat resistance and optical characteristics. In the adhesive layer,
If necessary, for example, appropriate additives such as fillers and pigments made of natural or synthetic resins, glass fibers and glass beads, metal powders and other inorganic powders, and coloring agents and antioxidants are blended. You can also. In addition, an adhesive layer exhibiting light diffusing properties can be formed by incorporating fine particles. An appropriate adhesive can be used for lamination with a polarizing plate, a retardation plate, or the like, but an adhesive layer is preferably used from the viewpoint of maintaining optical characteristics by suppressing thermal stress.
【００１４】本発明による偏光素子、就中、光吸収軸が
厚さ方向にあるものと偏光板との積層は、広視野角な偏
光素子を得ることを目的とし、その偏光板としては高い
二色比を達成する点などより光吸収軸が板の平面内にあ
るものが好ましく用いられる。光吸収軸が板の平面内に
ある偏光板には、例えばポリビニルアルコール等の親水
性ポリマーからなるフィルムをヨウ素や二色性染料等で
染色してホウ酸水溶液中等で２〜１０倍に延伸処理して
なる偏光フィルムやその片側又は両側に透明保護層を設
けたもの（例えば日東電工社製、ＮＰＦ等）、二色性物
質含有の液晶又は／及び液晶ポリマーを配向処理したも
の、リオトロピック液晶等を用いたものなどの適宜なも
のを用いることができ、特に限定はない。The lamination of the polarizing element according to the present invention, in particular, the polarizing element having a light absorption axis in the thickness direction and a polarizing plate is intended to obtain a polarizing element having a wide viewing angle. Those having a light absorption axis in the plane of the plate are preferably used from the viewpoint of achieving a color ratio. For a polarizing plate whose light absorption axis is in the plane of the plate, for example, a film made of a hydrophilic polymer such as polyvinyl alcohol is dyed with iodine or a dichroic dye and stretched 2 to 10 times in an aqueous boric acid solution or the like. (For example, NPF, manufactured by Nitto Denko Corporation), a polarizing film comprising a dichroic substance-containing liquid crystal and / or a liquid crystal polymer, and a lyotropic liquid crystal. An appropriate material such as a material using the same can be used, and there is no particular limitation.
【００１５】一方、位相差層の積層は、補償精度のより
向上等を目的とする。その位相差層には適宜なものを用
いることができ、特に限定はない。ちなみにその例とし
ては、上記の透明保護層で例示の樹脂からなるフィルム
の一軸や二軸等の延伸処理物や配向処理物、ディスコチ
ック系やネマチック系等の液晶組成物を樹脂フィルムに
コートしたものや含浸させたものなどがあげられる。光
学的に透明で配向ムラの少ない位相差層が好ましい。On the other hand, the lamination of the retardation layers aims at further improving the compensation accuracy and the like. Any suitable retardation layer can be used, and there is no particular limitation. By the way, as an example, a uniaxially or biaxially stretched or oriented product or a liquid crystal composition such as a discotic or nematic system was coated on a resin film by using the transparent protective layer described above as an example. And impregnated ones. A retardation layer that is optically transparent and has little alignment unevenness is preferable.
【００１６】位相差層は、前記した延伸フィルムや液晶
系等の適宜な組合せで２層以上を積層することもでき
る。偏光素子の光透過軸と位相差層の進相軸等の配置関
係については特に限定はない。一般にはＳＴＮ型液晶表
示装置ではその光透過軸と進相軸が異なる角度となるよ
うに、ＴＮ型液晶表示装置では光透過軸と進相軸が平行
関係又は直交関係となるように積層する方式が一般的で
ある。As the retardation layer, two or more layers can be laminated in an appropriate combination of the above-mentioned stretched film, liquid crystal system and the like. There is no particular limitation on the positional relationship between the light transmission axis of the polarizing element and the fast axis of the retardation layer. In general, the STN type liquid crystal display device is stacked such that the light transmission axis and the fast axis are at different angles, and the TN type liquid crystal display device is stacked such that the light transmission axis and the fast axis are in a parallel or orthogonal relationship. Is common.
【００１７】なお前記の光学層には、偏光板や位相差層
のほか例えば防眩層や反射防止層、帯電防止層や光拡散
層ないし光拡散制御層、輝度向上層や反射層ないし半透
過層などの液晶表示装置の形成に用いられる適宜なもの
を用いることができる。また上記した透明保護層や粘着
層、光学層などの各層は、例えばサリチル酸エステル系
化合物やベンゾフェノン系化合物、ベンゾトリアゾール
系化合物やシアノアクリレート系化合物、ニッケル錯塩
系化合物等の紫外線吸収剤で処理する方式などにより紫
外線吸収能をもたせることもできる。In addition to the polarizing plate and the retardation layer, the optical layer includes, for example, an antiglare layer, an antireflection layer, an antistatic layer, a light diffusion layer or a light diffusion control layer, a brightness enhancement layer, a reflection layer or a semi-transmission layer. An appropriate material such as a layer used for forming a liquid crystal display device can be used. Further, each layer such as the transparent protective layer, the adhesive layer, and the optical layer is treated with an ultraviolet absorber such as a salicylate compound, a benzophenone compound, a benzotriazole compound, a cyanoacrylate compound, and a nickel complex salt compound. UV absorption ability can be imparted by such means.
【００１８】偏光素子を用いての液晶表示装置の形成
は、従来に準じて行いうる。すなわち液晶表示装置は一
般に、液晶表示パネルと偏光素子及び必要に応じての光
学層や照明システム等の構成部品を適宜に組立てて駆動
回路を組込むことなどにより形成されるが、本発明にお
いては必要に応じて偏光板や位相差等の光学層を有する
偏光素子を液晶表示パネルの少なくとも片側に設ける点
を除いて特に限定はなく、従来に準じうる。The formation of a liquid crystal display device using a polarizing element can be performed according to a conventional method. That is, a liquid crystal display device is generally formed by appropriately assembling components such as a liquid crystal display panel, a polarizing element, and optional optical layers and an illumination system, and incorporating a drive circuit, and the like. There is no particular limitation except that a polarizing element having a polarizing plate or an optical layer such as a retardation is provided on at least one side of the liquid crystal display panel according to the present invention.
【００１９】従って液晶表示パネルの片側又は両側に偏
光素子を配置した液晶表示装置や、照明システムにバッ
クライトあるいは反射板や半透過型反射板を用いてなる
透過型や反射型、あるいは反射・透過両用型などの適宜
な液晶表示装置を形成することができる。また液晶表示
パネルについても、例えばＴＮ型やＳＴＮ型、ＴＦＴ型
や強誘電性液晶型などの任意なものを用いうる。Therefore, a liquid crystal display device in which a polarizing element is arranged on one or both sides of a liquid crystal display panel, or a transmissive or reflective type using a backlight or a reflector or a transflective reflector for an illumination system, or a reflective / transmissive type. An appropriate liquid crystal display device such as a dual-purpose type can be formed. Also, as the liquid crystal display panel, any type such as a TN type, an STN type, a TFT type, and a ferroelectric liquid crystal type can be used.
【００２０】[0020]
【実施例】実施例１ トリアセチルセルロースフィルムに設けた垂直配向膜上
に、二色性染料含有の側鎖型液晶ポリマーの溶液を塗布
し、乾燥して厚さ方向に光吸収軸を有する偏光素子を得
た。なお前記の二色性染料には、日本感光色素社製のＧ
−２０２／Ｇ−２０７／Ｇ−４２９を１／２／４の重量
比で混合したものを用いた。また側鎖型液晶ポリマーに
は、側鎖にビフェニルベンゾエートを有するホメオトロ
ピック型のものを用いた。EXAMPLE 1 A solution of a side chain type liquid crystal polymer containing a dichroic dye was applied on a vertical alignment film provided on a triacetyl cellulose film, dried, and polarized light having a light absorption axis in the thickness direction. An element was obtained. Note that the dichroic dyes described above include G
A mixture of -202 / G-207 / G-429 in a weight ratio of 1/2/4 was used. As the side chain type liquid crystal polymer, a homeotropic type having biphenyl benzoate in the side chain was used.
【００２１】実施例２ 実施例１の偏光素子に粘着層を介してポリビニルアルコ
ール系偏光フィルムからなる光吸収軸が板の平面内にあ
る偏光板（日東電工社製、ＮＰＦ−Ｇ１２２５ＤＵ）を
積層して偏光素子を得た。Example 2 A polarizing plate (NPF-G1225DU, manufactured by Nitto Denko Corporation) having a light absorption axis made of a polyvinyl alcohol-based polarizing film in the plane of the plate was laminated on the polarizing element of Example 1 via an adhesive layer. Thus, a polarizing element was obtained.
【００２２】比較例 偏光板（ＮＰＦ−Ｇ１２２５ＤＵ）をそのまま用いた。Comparative Example A polarizing plate (NPF-G1225DU) was used as it was.
【００２３】評価試験 実施例２の偏光素子の２枚又は比較例の偏光板の２枚を
クロスニコルに配置して光の透過状態を調べることによ
り、その暗状態での視野角特性を調べた。その結果を図
１に示した。なお図中の数値は、照明光の輝度／クロス
ニコルでの輝度の比を求めてコントラストに相当する数
値とした。図より実施例２では視角を変えたどの方位に
ても良好な暗レベルが維持されて、方位によるコントラ
ストのバラツキの少ないことがわかる。Evaluation Test Two polarizing elements of Example 2 or two polarizing plates of Comparative Example were arranged in crossed Nicols to examine the light transmission state, and the viewing angle characteristics in the dark state were examined. . The result is shown in FIG. In the figures, the ratio of the luminance of the illumination light / the luminance at the crossed Nicols was determined, and the numerical value corresponding to the contrast was used. From the figure, it can be seen that in Example 2, a good dark level was maintained in any direction in which the viewing angle was changed, and there was little variation in contrast depending on the direction.
【図１】視野角特性を示したグラフFIG. 1 is a graph showing viewing angle characteristics.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 西小路 祐一 大阪府茨木市下穂積１丁目１番２号日東電 工株式会社内 (72)発明者 増田 友昭 大阪府茨木市下穂積１丁目１番２号日東電 工株式会社内 Ｆターム(参考） 2H049 BA02 BA28 BB03 BB33 BB42 BB51 BC02 BC22 2H091 FA09X FA09Z FA11X FA11Z FD10 GA06 GA13 HA07 LA17 LA19 5G435 AA01 AA02 AA04 BB12 FF05 KK07 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yuichi Nishikoji 1-1-2 Shimohozumi, Ibaraki-shi, Osaka Nitto Denko Corporation (72) Inventor Tomoaki Masuda 1-1-1, Shimohozumi, Ibaraki-shi, Osaka No. 2 Nitto Denko Corporation F term (reference) 2H049 BA02 BA28 BB03 BB33 BB42 BB51 BC02 BC22 2H091 FA09X FA09Z FA11X FA11Z FD10 GA06 GA13 HA07 LA17 LA19 5G435 AA01 AA02 AA04 BB12 FF05 KK05
Claims (7)
軸が素子平面に対して垂直状態又は傾斜状態にあること
を特徴とする偏光素子。1. A polarizing element comprising a dichroic substance and having a light absorption axis perpendicular or inclined with respect to an element plane.
さ方向にある偏光素子。2. The polarizing element according to claim 1, wherein a light absorption axis is in a thickness direction of the element.
有の液晶成分の配向層からなる偏光素子。3. The polarizing element according to claim 1, wherein the polarizing element comprises an alignment layer of a liquid crystal component containing a dichroic substance.
粘着層を有する偏光素子。4. The polarizing element according to claim 1, which has an adhesive layer on one or both sides.
平面内にある偏光板を有する偏光素子。5. The polarizing element according to claim 1, further comprising a polarizing plate having a light absorption axis in a plane of the plate.
る偏光素子。6. The polarizing element according to claim 1, further comprising a retardation layer.
示パネルの片側又は両側に有することを特徴とする液晶
表示装置。7. A liquid crystal display device comprising the polarizing element according to claim 1 on one or both sides of a liquid crystal display panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000055591A JP2001242320A (en) | 2000-03-01 | 2000-03-01 | Polarizing element and liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000055591A JP2001242320A (en) | 2000-03-01 | 2000-03-01 | Polarizing element and liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001242320A true JP2001242320A (en) | 2001-09-07 |
Family
ID=18576685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000055591A Pending JP2001242320A (en) | 2000-03-01 | 2000-03-01 | Polarizing element and liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001242320A (en) |
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| JP2003084681A (en) * | 2001-09-10 | 2003-03-19 | Sony Corp | On-vehicle display device and car-navigation system |
| JP2003087688A (en) * | 2001-09-10 | 2003-03-20 | Sony Corp | On-vehicle display device and car navigation system |
| EP1804114A1 (en) * | 2005-12-28 | 2007-07-04 | Semiconductor Energy Laboratory Co., Ltd. | Display device |
| WO2008029555A1 (en) | 2006-09-07 | 2008-03-13 | Sharp Kabushiki Kaisha | Polarization control system and display device |
| JP2009205143A (en) * | 2008-01-31 | 2009-09-10 | Fujifilm Corp | Polarizing plate and liquid-crystal display device |
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| WO2008029555A1 (en) | 2006-09-07 | 2008-03-13 | Sharp Kabushiki Kaisha | Polarization control system and display device |
| EP2053431A2 (en) | 2006-09-07 | 2009-04-29 | Sharp Kabushiki Kaisha | Polarization control system and display device |
| US8035775B2 (en) | 2006-09-07 | 2011-10-11 | Sharp Kabushiki Kaisha | Polarization control system and display device |
| JP2009205143A (en) * | 2008-01-31 | 2009-09-10 | Fujifilm Corp | Polarizing plate and liquid-crystal display device |
| US8049843B2 (en) | 2008-01-31 | 2011-11-01 | Fujifilm Corporation | Polarizing plate and liquid-crystal display device |
| CN102422187A (en) * | 2009-05-04 | 2012-04-18 | 东友精细化工有限公司 | Coupled polarizing plate set and blue phase liquid crystal mode liquid crystal display including the same |
| KR20140096605A (en) * | 2013-01-28 | 2014-08-06 | 엘지디스플레이 주식회사 | polarizer, manufacturing method thereof, and liquid crystal display including the same |
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