JPH11281818A - Polarizing plate and display device using the same - Google Patents
Polarizing plate and display device using the sameInfo
- Publication number
- JPH11281818A JPH11281818A JP10101925A JP10192598A JPH11281818A JP H11281818 A JPH11281818 A JP H11281818A JP 10101925 A JP10101925 A JP 10101925A JP 10192598 A JP10192598 A JP 10192598A JP H11281818 A JPH11281818 A JP H11281818A
- Authority
- JP
- Japan
- Prior art keywords
- light scattering
- polarizing plate
- layer
- display device
- types
- 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.)
- Abandoned
Links
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- Liquid Crystal (AREA)
- Optical Elements Other Than Lenses (AREA)
- Polarising Elements (AREA)
Abstract
(57)【要約】
【課題】 偏光板の表面が虹色にぎらついて見えないよ
うにする。
【解決手段】 防眩機能層４は、アクリル樹脂等からな
る膜厚５μｍ程度の透明層４ａ中にシリカ等からなる粒
径５〜１０μｍ程度の光散乱用粒子４ｂと粒径１〜３μ
ｍ程度の光散乱用粒子４ｃとを分散させた構造となって
いる。そして、粒径の異なる２種類の光散乱用粒子４
ｂ、４ｃにより、観測者の後方から照射される光の回折
が不均一となり、その干渉現象が防止され、この結果偏
光板の表面が虹色等にぎらついて見えることのないよう
にすることができる。
(57) [Summary] [PROBLEMS] To prevent the surface of a polarizing plate from being glaring in rainbow colors. SOLUTION: An anti-glare function layer 4 includes a light scattering particle 4b of silica or the like having a particle size of about 5 to 10 μm and a light scattering particle 4 b of about 5 to 10 μm in a transparent layer 4 a of an acrylic resin or the like having a thickness of about 5 μm.
It has a structure in which about m light scattering particles 4c are dispersed. Then, two types of light scattering particles 4 having different particle sizes are used.
Due to b and 4c, the diffraction of light emitted from behind the observer becomes non-uniform, and the interference phenomenon is prevented. As a result, it is possible to prevent the surface of the polarizing plate from appearing rainbow-colored or the like. .
Description
【０００１】[0001]
【発明の属する技術分野】この発明は偏光板及びそれを
用いた表示装置に関する。[0001] The present invention relates to a polarizing plate and a display device using the same.
【０００２】[0002]
【従来の技術】例えば液晶表示装置で用いられている偏
光板には、防眩機能（例えば、観測者自身や観測者の背
後の景色等の映り込みを防止する機能）を有するものが
ある。図３は従来のこのような偏光板の一例の一部の断
面図を示したものである。この偏光板は、透明な下保護
フィルム１の上面に偏光膜２が設けられ、偏光膜２の上
面に透明な上保護フィルム３が設けられ、上保護フィル
ム３の上面に防眩機能層４が設けられ、防眩機能層４の
上面に反射防止層５が設けられ、反射防止層５の上面に
防汚染層６が設けられた構造となっている。このうち防
眩機能層４は、上保護フィルム３の上面に設けられたア
クリル樹脂等からなる透明層４ａ中にシリカ等からなる
多数の光散乱用粒子４ｂがほぼ均一に分散されたものか
らなっている。この場合、透明層４ａの膜厚及び光散乱
用粒子４ｂの粒径は共に５μｍ程度である。そして、光
散乱用粒子４ｂによる光散乱作用により、防眩機能が発
揮される。2. Description of the Related Art For example, a polarizing plate used in a liquid crystal display device has an anti-glare function (for example, a function of preventing an observer himself or a scene behind the observer from being reflected). FIG. 3 shows a partial cross-sectional view of an example of such a conventional polarizing plate. In this polarizing plate, a polarizing film 2 is provided on an upper surface of a transparent lower protective film 1, a transparent upper protecting film 3 is provided on an upper surface of the polarizing film 2, and an antiglare function layer 4 is provided on an upper surface of the upper protecting film 3. The antireflection layer 5 is provided on the upper surface of the antiglare function layer 4, and the antifouling layer 6 is provided on the upper surface of the antireflection layer 5. The anti-glare layer 4 is formed by dispersing a large number of light scattering particles 4b made of silica or the like in a transparent layer 4a made of an acrylic resin or the like provided on the upper surface of the upper protective film 3 in a substantially uniform manner. ing. In this case, the thickness of the transparent layer 4a and the particle size of the light scattering particles 4b are both about 5 μm. And the anti-glare function is exhibited by the light scattering action of the light scattering particles 4b.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、従来の
このような偏光板では、防眩機能層４を、粒径５μｍ程
度のほぼ均一な光散乱用粒子４ｂを透明層４ａ中にほぼ
均一に分散させたものによって形成しているので、観測
者の後方から照射される光が各光散乱用粒子４ｂによっ
てほぼ均一に回折され、そしてその干渉現象により、偏
光板の表面が虹色にぎらついて見えるという問題があっ
た。このような現象は、カラー液晶表示装置の画素サイ
ズが小さくなるほど、隣接する画素の異なる色の影響を
受け、悪化することになる。この発明の課題は、偏光板
の表面が虹色にぎらついて見えないようにすることであ
る。However, in such a conventional polarizing plate, the anti-glare function layer 4 has the substantially uniform light scattering particles 4b having a particle size of about 5 μm dispersed almost uniformly in the transparent layer 4a. The light illuminated from behind the observer is diffracted almost uniformly by the light scattering particles 4b, and the interference phenomenon causes the surface of the polarizing plate to appear to be rainbow-colored. There was a problem. Such a phenomenon becomes worse as the pixel size of the color liquid crystal display device becomes smaller, being affected by different colors of adjacent pixels. It is an object of the present invention to prevent the surface of a polarizing plate from being seen in a rainbow color.
【０００４】[0004]
【課題を解決するための手段】請求項１記載の発明に係
る偏光板は、偏光膜の表面側に、透明層中に粒径の異な
る複数種類の光散乱用粒子が分散された防眩機能層を備
えたものである。請求項２記載の発明に係る偏光板は、
偏光膜の表面側に、透明層の上面または下面に大きさの
異なる複数種類の点状の光散乱用凹部または光散乱用凸
部が設けられた防眩機能層を備えたものである。請求項
５記載の発明に係る表示装置は、表面側に偏光板を備え
た表示装置において、前記偏光板として、偏光膜の表面
側に、透明層中に粒径の異なる複数種類の光散乱用粒子
が分散されてなる防眩機能層を備えたものを用いたもの
である。請求項６記載の発明に係る表示装置は、表面側
に偏光板を備えた表示装置において、前記偏光板とし
て、偏光膜の表面側に、上面または下面に大きさの異な
る複数種類の点状の光散乱用凹部または光散乱用凸部が
設けられた透明層を備えたものを用いたものである。以
上の発明によれば、光散乱用粒子あるいは点状の光散乱
用凹部または光散乱用凸部により防眩機能を発揮するこ
とができる上、粒径の異なる複数種類の光散乱用粒子あ
るいは大きさの異なる複数種類の点状の光散乱用凹部ま
たは光散乱用凸部により、観測者の後方から照射される
光の回折が不均一となり、その干渉現象が防止され、こ
の結果偏光板の表面が虹色にぎらついて見えないように
することができる。According to a first aspect of the present invention, there is provided a polarizing plate, wherein a plurality of types of light scattering particles having different particle sizes are dispersed in a transparent layer on the surface side of a polarizing film. With layers. The polarizing plate according to the second aspect of the present invention,
On the front side of the polarizing film, there is provided an anti-glare function layer provided with a plurality of types of dot-like light scattering concave portions or light scattering convex portions having different sizes on the upper surface or the lower surface of the transparent layer. The display device according to claim 5, wherein the display device comprises a polarizing plate on the front surface side, wherein the polarizing plate has a plurality of types of light scattering particles having different particle sizes in a transparent layer on the front surface side of the polarizing film. The one provided with an anti-glare function layer in which particles are dispersed is used. The display device according to claim 6, wherein in the display device having a polarizing plate on the front surface side, as the polarizing plate, on the front surface side of the polarizing film, a plurality of types of point-shaped dots having different sizes on the upper surface or the lower surface. The one provided with a transparent layer provided with a light scattering concave portion or a light scattering convex portion is used. According to the above invention, the anti-glare function can be exhibited by the light-scattering particles or the point-like light-scattering concave portions or the light-scattering convex portions, and a plurality of types of light-scattering particles or particles having different particle diameters are provided. Due to a plurality of types of point-like light scattering concave portions or light scattering convex portions having different sizes, diffraction of light emitted from behind the observer becomes non-uniform, and the interference phenomenon is prevented. As a result, the surface of the polarizing plate is prevented. Can be made invisible in rainbow colors.
【０００５】[0005]
【発明の実施の形態】図１はこの発明の一実施形態にお
ける偏光板の要部の断面図を示したものである。この図
において、図３と同一名称部分には同一の符号を付し、
その説明を適宜省略する。この偏光板における防眩機能
層４は、膜厚５μｍ程度の透明層４ａ中に粒径５〜１０
μｍ程度の光散乱用粒子４ｂと粒径１〜３μｍ程度の光
散乱用粒子４ｃとを分散させた構造となっている。FIG. 1 is a sectional view showing a main part of a polarizing plate according to an embodiment of the present invention. In this figure, the same reference numerals are given to the same names as those in FIG.
The description is omitted as appropriate. The antiglare function layer 4 in this polarizing plate has a particle size of 5 to 10 in a transparent layer 4 a having a thickness of about 5 μm.
The structure is such that light scattering particles 4b of about μm and light scattering particles 4c of about 1 to 3 μm are dispersed.
【０００６】このように、この偏光板では、防眩機能層
４を、透明層４ａ中に粒径の異なる２種類の光散乱用粒
子４ｂ、４ｃを分散させた構造としているので、防眩機
能層４の構造が不均一となるが、防眩機能を従来の場合
とほぼ同様に発揮することができる。しかも、その上、
粒径の異なる２種類の光散乱用粒子４ｂ、４ｃにより、
観測者の後方から照射される光の回折が不均一となり、
その干渉現象が防止され、この結果偏光板の表面が虹色
にぎらついて見えないようにすることができる。As described above, in this polarizing plate, the anti-glare function layer 4 has a structure in which two types of light scattering particles 4b and 4c having different particle diameters are dispersed in the transparent layer 4a. Although the structure of the layer 4 is not uniform, the anti-glare function can be exerted almost in the same manner as in the conventional case. What's more,
By two kinds of light scattering particles 4b and 4c having different particle diameters,
Diffraction of the light emitted from behind the observer becomes uneven,
The interference phenomenon is prevented, and as a result, the surface of the polarizing plate can be made invisible in a rainbow color.
【０００７】次に、具体例について説明する。ＴＡＣ
（トリアセチルセルロース）からなる膜厚８０μｍ程度
の下保護フィルム１の上面に膜厚２０〜２５μｍ程度の
ＰＶＡ（ポリビニルアルコール）膜にヨウ素を吸収させ
てなる偏光膜２を接着し、偏光膜２の上面にＴＡＣから
なる膜厚８０μｍ程度の上保護フィルム３を接着し、上
保護フィルム３の上面に防眩機能層４を後述するように
形成し、防眩機能層４の上面にＳｉＯ2／ＴｉＯ2を１層
とする例えば５層の膜厚数千Å程度の反射防止層５を形
成し、反射防止層５の上面にフッ素系高分子からなる膜
厚数百〜数千Å程度の防汚染層６を形成する。Next, a specific example will be described. TAC
A polarizing film 2 formed by absorbing iodine on a PVA (polyvinyl alcohol) film having a thickness of about 20 to 25 μm is adhered to the upper surface of the lower protective film 1 made of (triacetyl cellulose) having a thickness of about 80 μm. An upper protective film 3 made of TAC having a thickness of about 80 μm is adhered to the upper surface, an antiglare function layer 4 is formed on the upper surface of the upper protective film 3 as described later, and SiO 2 / TiO 2 is formed on the upper surface of the antiglare function layer 4. For example, a five-layer anti-reflection layer 5 having a thickness of about several thousand Å is formed by using 2 as one layer, and an anti-contamination layer having a thickness of several hundred to several thousand な る made of a fluoropolymer is formed on the upper surface of the anti-reflection layer 5. The layer 6 is formed.
【０００８】次に、防眩機能層４の形成方法の一例につ
いて説明する。まず、透明層４ａを形成するためのアク
リル樹脂等の樹脂中にシリカ等からなる粒径５〜１０μ
ｍ程度と１〜３μｍ程度の２種類の光散乱用粒子４ｂ、
４ｃを共に多数混入させたものを用意する。この場合、
大径の光散乱用粒子４ｂと小径の光散乱用粒子４ｃとの
混入率は（大径の光散乱用粒子４ｂの粒子数）≦（小径
の光散乱用粒子４ｃの粒子数）とすることが望ましい。
次に、ロールコート法やスキージを用いた塗布法によ
り、上記用意したものを上保護フィルム３の上面に塗布
する。この場合、大径の光散乱用粒子４ｂの存在しない
領域における透明層４ａの膜厚が５μｍ程度あるいは大
径の光散乱用粒子４ｂの粒径とほぼ同じとなるようにす
る。すると、大径の光散乱用粒子４ｂのすべては上保護
フィルム３の上面に接触する状態となる。また、特に、
大径の光散乱用粒子４ｂの上面側には表面張力により薄
い透明層４ａが形成される。Next, an example of a method for forming the antiglare function layer 4 will be described. First, in a resin such as an acrylic resin for forming the transparent layer 4a, a particle diameter of 5 to 10 μm of silica or the like
two types of light scattering particles 4b of about m and about 1-3 μm,
4c is prepared. in this case,
The mixing ratio of the large-diameter light-scattering particles 4b and the small-diameter light-scattering particles 4c is (the number of the large-diameter light-scattering particles 4b) ≦ (the number of the small-diameter light-scattering particles 4c). Is desirable.
Next, the prepared material is applied to the upper surface of the upper protective film 3 by a roll coating method or an application method using a squeegee. In this case, the thickness of the transparent layer 4a in a region where the large-diameter light scattering particles 4b are not present is set to about 5 μm or substantially the same as the particle diameter of the large-diameter light scattering particles 4b. Then, all of the large-diameter light scattering particles 4 b come into contact with the upper surface of the upper protective film 3. Also, in particular,
A thin transparent layer 4a is formed on the upper surface side of the large diameter light scattering particles 4b by surface tension.
【０００９】ところで、以上のようにして得られた偏光
板のヘイズ値（曇度；散乱度合を示す値、この値が大き
いと画像のボケが大きくなる。）を調べたところ、約１
２であり、現行品のヘイズ値３〜２０程度と比較して、
あまり変わらず、防眩機能を向上させたにも拘らず、画
像の散乱度合も現行品の場合とほぼ同様のレベルに維持
できることが確認された。By the way, the haze value (haze; a value indicating the degree of scattering, the larger the value, the larger the blur of the image) of the polarizing plate obtained as described above, was about 1.
2, compared with the current product haze value of about 3 to 20,
It was confirmed that the degree of scattering of the image could be maintained at substantially the same level as that of the current product, despite the fact that the anti-glare function was improved.
【００１０】次に、図２は図１に示す偏光板を備えたカ
ラー液晶表示装置の一例の要部の断面図を示したもので
ある。このカラー液晶表示装置は、液晶表示パネル１１
の下面にバックライト１２が設けられた構造となってい
る。このうち液晶表示パネル１１は下ガラス基板１３及
び上ガラス基板１４を備えている。下ガラス基板１３の
上面にはＩＴＯからなる画素電極１５及びスイッチング
素子としての薄膜トランジスタ１６がマトリックス状に
設けられ、その上面にはオーバーコート膜１７が設けら
れ、その上面には配向膜１８が設けられている。下ガラ
ス基板１３の下面には通常の偏光板１９が貼り付けられ
ている。上ガラス基板１４の下面にはブラックマスク２
０が設けられ、その下面には赤、緑、青の各カラーフィ
ルタ要素２１が設けられ、その下面にはＩＴＯからなる
共通電極２２が設けられ、その下面には配向膜２３が設
けられている。上ガラス基板１４の上面には、図１に示
す構造の偏光板２４が貼り付けられている。そして、下
ガラス基板１３と上ガラス基板１４とは図示しないシー
ル材を介して互いに貼り合わされ、シール材の内側にお
ける両ガラス基板１３、１４の配向膜１８、２３間には
液晶２５が封入されている。FIG. 2 is a cross-sectional view of a main part of an example of a color liquid crystal display device provided with the polarizing plate shown in FIG. This color liquid crystal display device has a liquid crystal display panel 11.
Is provided with a backlight 12 on the lower surface thereof. The liquid crystal display panel 11 includes a lower glass substrate 13 and an upper glass substrate 14. A pixel electrode 15 made of ITO and a thin film transistor 16 as a switching element are provided in a matrix on the upper surface of the lower glass substrate 13, an overcoat film 17 is provided on the upper surface, and an alignment film 18 is provided on the upper surface. ing. A normal polarizing plate 19 is attached to the lower surface of the lower glass substrate 13. Black mask 2 is provided on the lower surface of upper glass substrate 14.
0, the red, green, and blue color filter elements 21 are provided on the lower surface thereof, the common electrode 22 made of ITO is provided on the lower surface thereof, and the alignment film 23 is provided on the lower surface thereof. . A polarizing plate 24 having the structure shown in FIG. 1 is attached to the upper surface of the upper glass substrate 14. The lower glass substrate 13 and the upper glass substrate 14 are bonded to each other via a sealing material (not shown), and a liquid crystal 25 is sealed between the alignment films 18 and 23 of the two glass substrates 13 and 14 inside the sealing material. I have.
【００１１】次に、このカラー液晶表示装置の表示品位
について説明する。まず、カラー液晶表示装置として、
１つは、画素の縦方向のピッチが１６０μｍで横方向の
ピッチが９０μｍのものを用意し、もう１つは、画素の
縦方向のピッチが１６０μｍで横方向のピッチが６０μ
ｍのものを用意した。そして、この２つのカラー液晶表
示装置に画像を表示させて観察したところ、いずれの場
合も、偏光板２４の表面が虹色等にぎらついて見えるよ
うなことはなく、良好な表示品位であることが確認され
た。Next, the display quality of the color liquid crystal display device will be described. First, as a color liquid crystal display device,
One has a pixel pitch of 160 μm in the vertical direction and a pitch of 90 μm in the horizontal direction. The other has a pixel pitch of 160 μm in the vertical direction and 60 μm in the horizontal direction.
m were prepared. Then, when images were displayed on the two color liquid crystal display devices and observed, in any case, the surface of the polarizing plate 24 did not appear to be glaring in rainbow colors or the like, and good display quality was obtained. confirmed.
【００１２】なお、上記実施形態では、上保護フィルム
３の上面に防眩機能層４を塗布して形成した場合につい
て説明したが、これに限定されるものではない。例え
ば、上保護フィルム３の下面に防眩機能層４を塗布して
形成するようにしてもよい。また、別のフィルムの上面
または下面に防眩機能層４を塗布して形成し、この別の
フィルムを上保護フィルム３の上面または下面に貼り付
けるようにしてもよい。また、上記実施形態では、透明
層４ａの膜厚を大径の光散乱用粒子４ｂの粒径とほぼ同
じとした場合について説明したが、小径の光散乱用粒子
４ｃの粒径とほぼ同じとしてもよい。また、上記実施形
態では、透明層４ａ中に粒径の異なる２種類の光散乱用
粒子４ｂ、４ｃを分散させた場合について説明したが、
３種類以上であってもよい。また、専用の防眩機能層４
を用いることなく、上保護フィルム３自体に、その中に
粒径の異なる複数種類の光散乱用粒子を分散させること
により、防眩機能を持たせるようにしてもよい。さら
に、上保護フィルム３を用いることなく、偏光膜２の上
面に防眩機能層４、反射防止層５及び防汚染層６を設け
るようにしてもよい。In the above embodiment, the case where the anti-glare function layer 4 is formed by coating on the upper surface of the upper protective film 3 has been described, but the present invention is not limited to this. For example, the anti-glare function layer 4 may be formed by coating the lower surface of the upper protective film 3. Alternatively, the anti-glare function layer 4 may be formed by applying the anti-glare function layer 4 on the upper or lower surface of another film, and this another film may be attached to the upper or lower surface of the upper protective film 3. Further, in the above embodiment, the case where the thickness of the transparent layer 4a is substantially the same as the particle diameter of the large-diameter light scattering particles 4b has been described. Is also good. In the above embodiment, the case where two types of light scattering particles 4b and 4c having different particle diameters are dispersed in the transparent layer 4a has been described.
Three or more types may be used. In addition, a special anti-glare function layer 4
Without using, the upper protective film 3 itself may have an antiglare function by dispersing a plurality of types of light scattering particles having different particle diameters therein. Furthermore, the antiglare function layer 4, the antireflection layer 5, and the antifouling layer 6 may be provided on the upper surface of the polarizing film 2 without using the upper protective film 3.
【００１３】また、図示していないが、防眩機能層とし
て、透明なフィルムの上面または下面に、エンボス加工
等の表面加工を施すことにより、大きさの異なる複数種
類の点状の光散乱用凹部または光散乱用凸部を設けたも
のを用い、これを上保護フィルム３の上面または下面に
貼り付けるようにしてもよい。また、このような防眩機
能層を用いることなく、上保護フィルム３自体に、その
上面または下面に大きさの異なる複数種類の点状の光散
乱用凹部または光散乱用凸部を設けることにより、防眩
機能を持たせるようにしてもよい。さらに、上保護フィ
ルム３を用いることなく、偏光膜２の上面にこの場合の
防眩機能層と上述の反射防止層５及び防汚染層６を設け
るようにしてもよい。加えて、この発明は、液晶表示装
置に限らず、エレクトロルミネセンス表示装置等の他の
表示装置にも適用することができる。Although not shown, the upper or lower surface of the transparent film is subjected to a surface treatment such as embossing as an antiglare function layer, so that a plurality of types of dot-like light scattering materials having different sizes are provided. It is also possible to use a member provided with a concave portion or a light scattering convex portion, and to attach this to the upper surface or the lower surface of the upper protective film 3. Further, without using such an anti-glare function layer, the upper protective film 3 itself is provided with a plurality of types of point-like light scattering concave portions or light scattering convex portions having different sizes on the upper surface or the lower surface thereof. Alternatively, an anti-glare function may be provided. Further, the antiglare function layer in this case, the antireflection layer 5 and the antifouling layer 6 described above may be provided on the upper surface of the polarizing film 2 without using the upper protective film 3. In addition, the present invention can be applied not only to the liquid crystal display device but also to other display devices such as an electroluminescence display device.
【００１４】[0014]
【発明の効果】以上説明したように、この発明によれ
ば、光散乱用粒子あるいは点状の光散乱用凹部または光
散乱用凸部により防眩機能を発揮することができる上、
粒径の異なる複数種類の光散乱用粒子あるいは大きさの
異なる複数種類の点状の光散乱用凹部または光散乱用凸
部により、観測者の後方から照射される光の回折が不均
一となり、その干渉現象が防止され、この結果偏光板の
表面が虹色にぎらついて見えないようにすることができ
る。As described above, according to the present invention, the anti-glare function can be exhibited by the light scattering particles or the point-like light scattering concave portions or the light scattering convex portions.
Due to a plurality of types of light scattering particles having different particle diameters or a plurality of types of point-like light scattering recesses or light scattering projections having different sizes, diffraction of light emitted from behind the observer becomes non-uniform, The interference phenomenon is prevented, and as a result, the surface of the polarizing plate can be made invisible in a rainbow color.
【図１】この発明の一実施形態における偏光板の要部の
断面図。FIG. 1 is a sectional view of a main part of a polarizing plate according to an embodiment of the present invention.
【図２】図１に示す偏光板を備えたカラー液晶表示装置
の一例の要部の断面図。FIG. 2 is a cross-sectional view of a main part of an example of a color liquid crystal display device including the polarizing plate shown in FIG.
【図３】従来の偏光板の一例の一部の断面図。FIG. 3 is a partial cross-sectional view of an example of a conventional polarizing plate.
１ 下保護フィルム ２ 偏光膜 ３ 上保護フィルム ４ 防眩機能層 ４ａ 透明層 ４ｂ、４ｃ 光散乱用粒子 ５ 反射防止層 ６ 防汚染層 DESCRIPTION OF SYMBOLS 1 Lower protective film 2 Polarizing film 3 Upper protective film 4 Anti-glare functional layer 4a Transparent layer 4b, 4c Light scattering particles 5 Anti-reflection layer 6 Anti-staining layer
Claims (6)
なる複数種類の光散乱用粒子が分散された防眩機能層を
備えていることを特徴とする偏光板。1. A polarizing plate comprising, on a surface side of a polarizing film, an antiglare functional layer in which a plurality of types of light scattering particles having different particle sizes are dispersed in a transparent layer.
下面に大きさの異なる複数種類の点状の光散乱用凹部ま
たは光散乱用凸部が設けられた防眩機能層を備えている
ことを特徴とする偏光板。2. An anti-glare function layer provided with a plurality of types of point-like light scattering concave portions or light scattering convex portions having different sizes on the upper surface or the lower surface of the transparent layer on the surface side of the polarizing film. A polarizing plate, characterized in that:
前記偏光膜の下面に下保護フィルムが設けられ、前記偏
光膜と前記防眩機能層との間に上保護フィルムが設けら
れていることを特徴とする偏光板。3. The method according to claim 1, wherein
A polarizing plate, wherein a lower protective film is provided on a lower surface of the polarizing film, and an upper protective film is provided between the polarizing film and the antiglare function layer.
おいて、前記防眩機能層の上面に反射防止層及び防汚染
層が設けられていることを特徴とする偏光板。4. The polarizing plate according to claim 1, wherein an anti-reflection layer and an anti-contamination layer are provided on an upper surface of the anti-glare function layer.
て、前記偏光板は、偏光膜の表面側に、透明層中に粒径
の異なる複数種類の光散乱用粒子が分散された防眩機能
層を備えたものからなることを特徴とする表示装置。5. A display device having a polarizing plate on a surface side, wherein the polarizing plate has a plurality of types of light scattering particles having different particle diameters dispersed in a transparent layer on a surface side of a polarizing film. A display device comprising a functional layer.
て、前記偏光板は、偏光膜の表面側に、上面または下面
に大きさの異なる複数種類の点状の光散乱用凹部または
光散乱用凸部が設けられた透明層を備えたものからなる
ことを特徴とする表示装置。6. A display device comprising a polarizing plate on a front surface side, wherein the polarizing plate is provided on a front surface side of a polarizing film in a plurality of types of dot-like light scattering recesses or light scattering portions having different sizes on an upper surface or a lower surface. A display device comprising a transparent layer provided with a convex portion for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10101925A JPH11281818A (en) | 1998-03-31 | 1998-03-31 | Polarizing plate and display device using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10101925A JPH11281818A (en) | 1998-03-31 | 1998-03-31 | Polarizing plate and display device using the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11281818A true JPH11281818A (en) | 1999-10-15 |
Family
ID=14313501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10101925A Abandoned JPH11281818A (en) | 1998-03-31 | 1998-03-31 | Polarizing plate and display device using the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11281818A (en) |
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|---|---|---|---|---|
| JP2003248101A (en) * | 2002-02-25 | 2003-09-05 | Fuji Photo Film Co Ltd | Antidazzle and antireflection film, polarizing plate and display device |
| JP2004144934A (en) * | 2002-10-23 | 2004-05-20 | Fuji Photo Film Co Ltd | Antidazzle antireflection film, polarizing plate and display device |
| JP2006264332A (en) * | 2005-02-28 | 2006-10-05 | Sumitomo Chemical Co Ltd | Method for producing antiglare film |
| JP2008102511A (en) * | 2007-10-04 | 2008-05-01 | Fujifilm Corp | Antiglare antireflection film, polarizing plate and display device |
| WO2008129790A1 (en) * | 2007-03-20 | 2008-10-30 | Nippon Shokubai Co., Ltd. | Resin composition for light-diffusing film, and light-diffusing film comprising the same |
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| US7542207B2 (en) | 2002-02-25 | 2009-06-02 | Fujifilm Corporation | Antiglare and antireflection film polarizing plate and display device |
| WO2010122924A1 (en) | 2009-04-24 | 2010-10-28 | シャープ株式会社 | Antireflection film, method for manufacturing antireflection film, and display apparatus |
| JP2011133878A (en) * | 2009-11-30 | 2011-07-07 | Nitto Denko Corp | Liquid crystal display device |
| KR101142719B1 (en) | 2005-02-28 | 2012-05-04 | 스미또모 가가꾸 가부시키가이샤 | Process for producing a layered article |
| US8187699B2 (en) | 2005-02-21 | 2012-05-29 | Dai Nippon Printing Co., Ltd. | Optical multilayer body, polarization plate using same, and image display |
| US8304071B2 (en) | 2005-02-21 | 2012-11-06 | Dai Nippon Printing Co., Ltd. | Method and apparatus for producing optical multilayer body |
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-
1998
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| JP2003248101A (en) * | 2002-02-25 | 2003-09-05 | Fuji Photo Film Co Ltd | Antidazzle and antireflection film, polarizing plate and display device |
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| JP2006264332A (en) * | 2005-02-28 | 2006-10-05 | Sumitomo Chemical Co Ltd | Method for producing antiglare film |
| WO2008129790A1 (en) * | 2007-03-20 | 2008-10-30 | Nippon Shokubai Co., Ltd. | Resin composition for light-diffusing film, and light-diffusing film comprising the same |
| JP2009031792A (en) * | 2007-07-27 | 2009-02-12 | Samsung Electronics Co Ltd | Collimating light guide plate, diffusion unit and display device using the same |
| US9383503B2 (en) | 2007-07-27 | 2016-07-05 | Samsung Display Co., Ltd. | Collimating light guide plate, diffusing unit, and display apparatus employing the same |
| JP2008102511A (en) * | 2007-10-04 | 2008-05-01 | Fujifilm Corp | Antiglare antireflection film, polarizing plate and display device |
| WO2010122924A1 (en) | 2009-04-24 | 2010-10-28 | シャープ株式会社 | Antireflection film, method for manufacturing antireflection film, and display apparatus |
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