JP2000314875A - Liquid crystal display device - Google Patents
Liquid crystal display deviceInfo
- Publication number
- JP2000314875A JP2000314875A JP11121956A JP12195699A JP2000314875A JP 2000314875 A JP2000314875 A JP 2000314875A JP 11121956 A JP11121956 A JP 11121956A JP 12195699 A JP12195699 A JP 12195699A JP 2000314875 A JP2000314875 A JP 2000314875A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- display device
- crystal display
- crystal cell
- layer
- 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
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- Liquid Crystal (AREA)
- Transforming Electric Information Into Light Information (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、液晶表示装置に関
し、詳しくは画素ピッチの小さい高精細の液晶表示装置
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display, and more particularly, to a high definition liquid crystal display having a small pixel pitch.
【０００２】[0002]
【従来の技術】液晶表示装置は、小型で消費電力が少な
いことから様々な装置のモニター、例えばビデオカメラ
などの撮影状態を示すモニターとして多用されている。
ビデオカメラのモニターのように、屋外で使用される液
晶表示装置には、外光の映り込みによる視認性の低下を
防止するために、最表面に凹凸からなる防眩面（１）が
設けられて使用される場合も多い。かかる防眩面は、例
えば液晶表示装置（４）を構成する液晶セル（２）の前
面側に配置される直線偏光板（５）の表面に凹凸として
設けられている（図６）。2. Description of the Related Art Liquid crystal display devices are frequently used as monitors of various devices, for example, monitors for displaying a photographing state of a video camera or the like because of their small size and low power consumption.
A liquid crystal display device used outdoors, such as a monitor of a video camera, is provided with an antiglare surface (1) made of unevenness on the outermost surface thereof in order to prevent a decrease in visibility due to reflection of external light. Often used. Such an anti-glare surface is provided as unevenness on the surface of a linear polarizing plate (5) arranged on the front side of a liquid crystal cell (2) constituting a liquid crystal display device (4) (FIG. 6).
【０００３】しかし、液晶表示装置の最表面に凹凸から
なる防眩面を設けると、表示画面にギラツキを生ずる場
合があった。かかるギラツキは、表示画面の視認性を低
下させるものである。However, when an anti-glare surface made of irregularities is provided on the outermost surface of a liquid crystal display device, there is a case where glare occurs on a display screen. Such glare reduces the visibility of the display screen.
【０００４】[0004]
【発明が解決しようとする課題】そこで、本発明者は、
最表面に凹凸からなる防眩面を設けることによるギラツ
キの発生が少ない液晶表示装置を開発するべく、鋭意検
討した結果、液晶表示装置を構成する液晶セルの前面側
に、特定の内部ヘイズを有する光拡散層を配置すること
により、かかるギラツキを低減し得ることを見出し、本
発明に至った。Therefore, the present inventor has proposed:
In order to develop a liquid crystal display device with less glare caused by providing an antiglare surface consisting of irregularities on the outermost surface, as a result of intensive studies, it has a specific internal haze on the front side of the liquid crystal cell constituting the liquid crystal display device By arranging the light diffusion layer, it has been found that such glare can be reduced, and the present invention has been achieved.
【０００５】[0005]
【課題を解決するための手段】すなわち、本発明は、最
表面に凹凸からなる防眩面（１）を有する液晶表示装置
（４）であって、画素ピッチ（ａ）が７５μｍ以下であ
る液晶セル（２）を有し、液晶セルの前面側に内部ヘイ
ズが３〜５０％である光拡散層（３）を有することを特
徴とする液晶表示装置（４）を提供するものである。本
発明の液晶表示装置の一例を図１〜図５に示す。That is, the present invention relates to a liquid crystal display device (4) having an antiglare surface (1) having irregularities on the outermost surface, wherein the pixel pitch (a) is 75 μm or less. A liquid crystal display device (4) comprising a cell (2) and a light diffusion layer (3) having an internal haze of 3 to 50% on the front side of the liquid crystal cell. One example of the liquid crystal display device of the present invention is shown in FIGS.
【０００６】[0006]
【発明の実施の形態】本発明の液晶表示装置（４）は、
その最表面に凹凸からなる防眩面（１）を有している。
かかる防眩面（１）は、液晶表示装置において最表面を
構成する部材に設けられ、例えば液晶セルの前面側に配
置される直線偏光板（以下、「前面側直線偏光板」とも
いう。）（５）の表面に設けられた凹凸面であってもよ
い。かかる凹凸面を有する直線偏光板（５）は、様々な
ものが市販されており、例えば「スミカランＳＱ１８５
２−ＡＧ７」〔住友化学工業(株)製〕などが挙げられ
る。DESCRIPTION OF THE PREFERRED EMBODIMENTS A liquid crystal display device (4) of the present invention comprises:
The outermost surface has an antiglare surface (1) composed of irregularities.
The anti-glare surface (1) is provided on a member constituting the outermost surface of the liquid crystal display device, and is, for example, a linear polarizing plate (hereinafter, also referred to as a “front-side linear polarizing plate”) disposed on the front side of the liquid crystal cell. The uneven surface provided on the surface of (5) may be used. Various types of linear polarizing plates (5) having such an uneven surface are commercially available, for example, “Sumikaran SQ185”
2-AG7 "(manufactured by Sumitomo Chemical Co., Ltd.).
【０００７】また、本発明の液晶表示装置を構成する液
晶セル（２）は、例えば前面側透明電極（２１）と背面
側電極（２２）との間に液晶層（２３）が挟持されてい
るものであって、ＴＮ型液晶セルであってもよいし、Ｓ
ＴＮ型液晶セルであってもよい。In the liquid crystal cell (2) constituting the liquid crystal display device of the present invention, for example, a liquid crystal layer (23) is sandwiched between a front transparent electrode (21) and a rear electrode (22). And a TN type liquid crystal cell may be used.
It may be a TN type liquid crystal cell.
【０００８】かかる液晶セル（２）は、その画素ピッチ
（ａ）が１０μｍ以上１００μｍ以下である。１００μ
ｍを越えると、そもそもギラツキが生ずる場合が少な
い。また、通常、画素ピッチ（ａ）は２５μｍ程度以上
である。液晶セルがカラー表示が可能なカラー液晶セル
である場合には、各画素は赤（Ｒ）、緑（Ｇ）、青
（Ｂ）の何れかの原色に対応する画素である。The liquid crystal cell (2) has a pixel pitch (a) of 10 μm or more and 100 μm or less. 100μ
When m is exceeded, glare rarely occurs in the first place. Usually, the pixel pitch (a) is about 25 μm or more. When the liquid crystal cell is a color liquid crystal cell capable of color display, each pixel is a pixel corresponding to any of the primary colors of red (R), green (G), and blue (B).
【０００９】液晶表示装置が透過型液晶表示装置である
場合や通常の反射型液晶表示装置である場合には、液晶
セルの背面側には直線偏光板（６）（以下、「背面側直
線偏光板」ともいう。）が配置されれているが（図
１）、反射型液晶表示装置である場合には、液晶セル
（２）の背面側の電極（２２）が反射板を兼ねていて背
面側直線偏光板（６）を有していなくともよい（図
２）。When the liquid crystal display device is a transmission type liquid crystal display device or a normal reflection type liquid crystal display device, a linear polarizing plate (6) (hereinafter referred to as "back side linearly polarized light") is provided on the back side of the liquid crystal cell. (FIG. 1), but in the case of a reflective liquid crystal display device, the electrode (22) on the back side of the liquid crystal cell (2) also serves as a reflector, and The side linear polarizing plate (6) may not be provided (FIG. 2).
【００１０】本発明の液晶表示装置（４）は、かかる液
晶セル（２）と防眩面（１）との間に光拡散層（３）を
有している。光拡散層（３）は、例えば液晶セル（２）
の前面側に配置される直線偏光板（５）の表面に防眩面
を有する場合には、前面側直線偏光板（５）と液晶セル
（２）との間に光拡散層が配置される（図１、図２）。
また、液晶セル（２）とその前面側直線偏光板（５）と
の間には位相差板（７）などが配置される場合もあるが
（図３、４）、かかる場合には、液晶セル（２）と位相
差板（７）との間に光拡散層（３）が配置されてもよい
し（図３）、位相差板（７）と前面側直線偏光板（５）
との間に光拡散層（３）が配置されてもよく（図４）、
更には液晶セル（２）と位相差板（７）との間に光拡散
層（３）が配置されると共に該位相差板（７）と前面側
直線偏光板（５）との間に更に光拡散層（３）が配置さ
れてもよい（図５）。The liquid crystal display device (4) of the present invention has a light diffusion layer (3) between the liquid crystal cell (2) and the anti-glare surface (1). The light diffusion layer (3) is, for example, a liquid crystal cell (2).
When the surface of the linear polarizer (5) disposed on the front side of the device has an anti-glare surface, a light diffusion layer is disposed between the front linear polarizer (5) and the liquid crystal cell (2). (FIGS. 1 and 2).
In some cases, a retardation plate (7) is disposed between the liquid crystal cell (2) and its front linear polarizing plate (5) (FIGS. 3 and 4). A light diffusion layer (3) may be arranged between the cell (2) and the phase difference plate (7) (FIG. 3), or the phase difference plate (7) and the front-side linear polarizing plate (5).
And a light diffusion layer (3) may be disposed between them (FIG. 4).
Further, a light diffusion layer (3) is disposed between the liquid crystal cell (2) and the phase difference plate (7), and further between the phase difference plate (7) and the front-side linear polarizing plate (5). A light diffusion layer (3) may be provided (FIG. 5).
【００１１】前面側直線偏光板（５）と液晶セル（２）
とや（図１、図２）、位相差板（７）が配置されている
場合に液晶セル（２）と位相差板（７）と（図３、図
５）、または位相差板（７）と前面側直線偏光板（５）
とは（図４、図５）、通常、接着剤層（８）を介して積
層されているので、光拡散層（３）がかかる接着剤層
（８）を兼ねていれば、層構成の増加を招かない点で好
ましい。The front-side linear polarizing plate (5) and the liquid crystal cell (2)
When the retardation plate (7) is disposed, the liquid crystal cell (2) and the retardation plate (7) and (FIGS. 3 and 5) or the retardation plate (7) are provided. ) And front-side linear polarizer (5)
(FIGS. 4 and 5) are usually laminated via an adhesive layer (8), so that if the light diffusion layer (3) also serves as the adhesive layer (8), the layer structure is This is preferable in that it does not increase.
【００１２】このような光拡散層（３）を兼ねる接着剤
層（８）としては、例えば接着剤層を構成する接着剤成
分とは異なる屈折率を有する粒子が分散されている接着
剤層が挙げられる。接着剤層を構成する接着剤成分とし
ては、通常、感圧型接着剤（粘着剤）が用いられ、例え
ばアクリル系感圧型接着剤、ウレタン系感圧型接着剤な
どが使用される。As the adhesive layer (8) also serving as the light diffusion layer (3), for example, an adhesive layer in which particles having a refractive index different from that of the adhesive component constituting the adhesive layer are dispersed. No. As the adhesive component constituting the adhesive layer, a pressure-sensitive adhesive (adhesive) is usually used, for example, an acrylic pressure-sensitive adhesive, a urethane-based pressure-sensitive adhesive, or the like.
【００１３】このような光拡散層を兼ねる接着剤層に分
散される粒子は、その屈折率が接着剤成分の屈折率とは
異なっている必要がある。屈折率が同じであると光拡散
層として機能せず、粒子の屈折率と接着剤成分の屈折率
との差が０．２以上であることが好ましい。また、粒子
の屈折率は、接着剤成分の屈折率よりも大きい方が好ま
しい。なお、接着剤成分の屈折率と粒子の屈折率との差
は高々１．５程度である。粒子の平均粒子径は通常２〜
７μｍ程度である。接着剤層における粒子の使用量は、
接着剤成分１００重量部あたり通常は０．１〜１０重量
部程度である。粒子の形状は通常、球形である。The particles dispersed in the adhesive layer also serving as the light diffusion layer need to have a refractive index different from that of the adhesive component. If the refractive indexes are the same, the layer does not function as a light diffusion layer, and the difference between the refractive index of the particles and the refractive index of the adhesive component is preferably 0.2 or more. Further, the refractive index of the particles is preferably larger than the refractive index of the adhesive component. The difference between the refractive index of the adhesive component and the refractive index of the particles is at most about 1.5. The average particle size of the particles is usually 2 to
It is about 7 μm. The amount of particles used in the adhesive layer is
It is usually about 0.1 to 10 parts by weight per 100 parts by weight of the adhesive component. The shape of the particles is usually spherical.
【００１４】光拡散層の内部ヘイズは通常３〜５０％で
ある。光拡散層（３）が２層以上からなる場合（図５）
には、これらの内部ヘイズの合計が３〜５０％の範囲に
あればよい。光拡散層（３）の厚みは内部ヘイズが３〜
５０％程度となるのであれば特に限定されないが、通常
は１０〜１００μｍ程度であり、接着剤層を兼ねている
場合には、その厚みは通常１０〜５０μｍ程度である。The internal haze of the light diffusion layer is usually 3 to 50%. When the light diffusion layer (3) is composed of two or more layers (FIG. 5)
It is sufficient that the total of these internal hazes is in the range of 3 to 50%. The internal haze of the light diffusing layer (3) is 3 to
It is not particularly limited as long as it is about 50%, but is usually about 10 to 100 μm, and when it also serves as an adhesive layer, its thickness is usually about 10 to 50 μm.
【００１５】最表面に凹凸からなる防眩面を有する液晶
表示装置においては、防眩面の防眩性能を確保するため
の凹凸の間隔、高さは視認性の点でほぼ一定の範囲とな
る。また、防眩面として設けられる凹凸は、それ自身が
微細な凸レンズまたは凹レンズとしての機能を有するこ
とになる。このような凸レンズまたは凹レンズが最表面
に形成されることとなっても、液晶セルの一画素の大き
さがこれら凸レンズや凹レンズの大きさと比較して十分
に大きなものであれば、凸レンズや凹レンズによって、
各画素が拡大または縮小されて見えることはない。In a liquid crystal display device having an antiglare surface formed of irregularities on the outermost surface, the interval and height of the irregularities for ensuring the antiglare performance of the antiglare surface are in a substantially constant range in terms of visibility. . In addition, the unevenness provided as the antiglare surface itself has a function as a fine convex lens or a concave lens. Even if such a convex lens or concave lens is formed on the outermost surface, if the size of one pixel of the liquid crystal cell is sufficiently large compared to the size of the convex lens or concave lens, the convex lens or concave lens is used. ,
Each pixel does not appear to be scaled up or down.
【００１６】一方、高精細の液晶表示装置とするべく液
晶セルの画素ピッチを小さくすると、液晶セルの一画素
の大きさが、防眩面に形成されることとなる凸レンズま
たは凹レンズの大きさに対して概ね一致しまたは小さく
なり、個々の画素が拡大または縮小されて見えることに
なる。そして、このような個々の画素の拡大または縮小
が、液晶表示装置の表示画面全体としては、いわゆる
「ギラツキ」として観察されるものと思われる。かかる
ギラツキを減少するには、防眩面を構成する凹凸の間隔
などを調整することも考えられるが、高精細の液晶表示
装置においては、場合によっては防眩性能が低下してし
まい、防眩面としての機能を果たさなくなるおそれもあ
る。On the other hand, if the pixel pitch of the liquid crystal cell is reduced in order to obtain a high-definition liquid crystal display device, the size of one pixel of the liquid crystal cell becomes smaller than the size of the convex lens or concave lens formed on the anti-glare surface. On the other hand, they generally match or become smaller, and individual pixels appear to be enlarged or reduced. It is considered that such enlargement or reduction of each pixel is observed as so-called "glare" on the entire display screen of the liquid crystal display device. In order to reduce such glare, it is conceivable to adjust the interval between the concavities and convexities constituting the anti-glare surface. However, in a high-definition liquid crystal display device, the anti-glare performance may be reduced in some cases. There is a possibility that the function as a surface may not be achieved.
【００１７】本発明の液晶表示装置においてギラツキが
低減される理由は必ずしも明らかではないが、液晶表示
装置を構成する液晶セルの前面側に光拡散層を有するこ
とによって、個々の画素からの光が光拡散層を通過する
際に拡散され、その結果、凸レンズや凹レンズによる拡
大、縮小の程度が抑えられて、ギラツキが低減されるも
のと考えている。Although the reason why glare is reduced in the liquid crystal display device of the present invention is not necessarily clear, the light from each pixel can be reduced by providing the light diffusion layer on the front side of the liquid crystal cell constituting the liquid crystal display device. It is considered that the light is diffused when passing through the light diffusion layer, and as a result, the degree of enlargement and reduction by the convex lens or the concave lens is suppressed, and glare is reduced.
【００１８】[0018]
【発明の効果】本発明の液晶表示装置は、最表面に凹凸
からなる防眩面を設けることによるギラツキの発生が少
ないので、表面反射による視認性の低下を防止しながら
ギラツキ感が低減されているので、屋外で使用されるモ
ニターなどの用途に最適である。According to the liquid crystal display device of the present invention, the occurrence of glare due to the provision of an anti-glare surface made of irregularities on the outermost surface is small, so that the glare is reduced while preventing a decrease in visibility due to surface reflection. This makes it ideal for applications such as monitors used outdoors.
【００１９】[0019]
【実施例】以下、実施例により本発明をより詳細に説明
するが、本発明は、これら実施例に限定されるものでは
ない。EXAMPLES Hereinafter, the present invention will be described in more detail by way of examples, but the present invention is not limited to these examples.
【００２０】実施例１ アクリル系感圧型接着剤〔屈折率１．４７〕１００重量
部と、架橋ポリスチレンビーズ〔平均粒子径４．０μ
ｍ、屈折率１．５９、球形粒子〕２重量部を混合して、
接着性組成物を得た。この接着性組成物を、片面に凹凸
からなる防眩面を有する直線偏光板〔「スミカランＳＱ
１８５２−ＡＧ７」、住友化学工業(株)製、ヘイズ７
％、凹凸の平均十点粗さ（Ｒａ）は０．３μｍ、凹凸間
平均距離は３３μｍ〕の裏面（凹凸が設けられていない
面）に厚み２５μｍで塗布し接着剤層（光拡散層）を設
けた。この接着剤層の内部ヘイズは２５％であった。Example 1 100 parts by weight of an acrylic pressure-sensitive adhesive [refractive index: 1.47] and crosslinked polystyrene beads [average particle size: 4.0 μm]
m, refractive index 1.59, spherical particles] 2 parts by weight,
An adhesive composition was obtained. This adhesive composition was coated on a linear polarizing plate having an antiglare surface having irregularities on one side [“Sumicaran SQ
1852-AG7 ", manufactured by Sumitomo Chemical Co., Ltd., Haze 7
%, The average ten-point roughness (Ra) of the unevenness is 0.3 μm, and the average distance between the unevenness is 33 μm], and the adhesive layer (light diffusion layer) is coated with a thickness of 25 μm. Provided. The internal haze of this adhesive layer was 25%.
【００２１】次いで、この直線偏光板を上記で設けた接
着剤層を介して、透過型カラー液晶セル〔画面サイズは
２．５インチ、画素数は１８万画素、画素ピッチは３０
μｍ〕の前面側に積層して液晶表示装置を得た。この液
晶表示装置をライトボックス上に置き、目視により画面
上に現れるギラツキを評価した。評価結果を表１に示
す。Next, this linear polarizing plate is placed on the transparent color liquid crystal cell [the screen size is 2.5 inches, the number of pixels is 180,000 pixels, and the pixel pitch is 30 through the adhesive layer provided above.
μm] to obtain a liquid crystal display device. This liquid crystal display device was placed on a light box, and glare appearing on the screen was visually evaluated. Table 1 shows the evaluation results.
【００２２】実施例２ 架橋ポリスチレンビーズの使用量を０．５重量部とする
以外は実施例１と同様に操作して接着性組成物を得、液
晶表示装置を得た。評価結果を表１に示す。Example 2 An adhesive composition was obtained in the same manner as in Example 1 except that the amount of the crosslinked polystyrene beads was changed to 0.5 part by weight to obtain a liquid crystal display device. Table 1 shows the evaluation results.
【００２３】実施例３ 架橋ポリスチレンビーズに代えてベンゾグアナミン・ホ
ルムアルデヒド縮合物のビーズ〔「エポスターＭＳ」、
(株)日本触媒製、平均粒子径２．０μｍ、屈折率１．５
７、球形粒子〕を０．５重量部用いる以外は、実施例１
と同様に操作して接着性組成物を得、液晶表示装置を得
た。評価結果を表１に示す。Example 3 Benzoguanamine-formaldehyde condensate beads ["Eposter MS",
Nippon Shokubai Co., Ltd., average particle diameter 2.0 μm, refractive index 1.5
7, spherical particles] in Example 1
The same procedure as described above was performed to obtain an adhesive composition, and a liquid crystal display device was obtained. Table 1 shows the evaluation results.
【００２４】実施例４ 架橋ポリスチレンビーズに代えてメラミン・ホルムアル
デヒド縮合物のビーズ〔「エポスターＳ１２」、(株)日
本触媒製、平均粒子径１．２μｍ、屈折率１．５７、球
形粒子〕を０．５重量部用いる以外は、実施例１と同様
に操作して接着性組成物を得、液晶表示装置を得た。評
価結果を表１に示す。Example 4 In place of the crosslinked polystyrene beads, melamine-formaldehyde condensate beads [Eposter S12, manufactured by Nippon Shokubai Co., Ltd., average particle diameter 1.2 μm, refractive index 1.57, spherical particles] An adhesive composition was obtained in the same manner as in Example 1 except that 0.5 parts by weight was used, and a liquid crystal display device was obtained. Table 1 shows the evaluation results.
【００２５】比較例１ 架橋ポリスチレンビーズを用いない以外は、実施例１と
同様に操作して、接着性組成物を得、液晶表示装置を得
た。評価結果を表１に示す。Comparative Example 1 An adhesive composition was obtained and a liquid crystal display device was obtained in the same manner as in Example 1 except that no crosslinked polystyrene beads were used. Table 1 shows the evaluation results.
【００２６】[0026]
【表１】 ◎：ギラツキが殆ど認められない ○：ギラツキが僅かに認められるが、表示の見易さには
影響しない。 △：ギラツキが認められ、表示がやや見づらい。 ×：ギラツキが大きく、表示が見づらい。[Table 1] ◎: Little glare is observed ○: Slight glare is observed, but does not affect the visibility of the display. Δ: Glare was observed, and the display was slightly hard to see. X: The glare is large and the display is difficult to see.
【図１】本発明の液晶表示装置の一例を示す断面模式図
である。FIG. 1 is a schematic sectional view showing an example of a liquid crystal display device of the present invention.
【図２】本発明の液晶表示装置の一例を示す断面模式図
である。FIG. 2 is a schematic sectional view showing an example of the liquid crystal display device of the present invention.
【図３】本発明の液晶表示装置の一例を示す断面模式図
である。FIG. 3 is a schematic sectional view showing an example of the liquid crystal display device of the present invention.
【図４】本発明の液晶表示装置の一例を示す断面模式図
である。FIG. 4 is a schematic sectional view showing an example of the liquid crystal display device of the present invention.
【図５】本発明の液晶表示装置の一例を示す断面模式図
である。FIG. 5 is a schematic sectional view showing an example of the liquid crystal display device of the present invention.
【図６】従来の液晶表示装置を示す断面模式図である。FIG. 6 is a schematic sectional view showing a conventional liquid crystal display device.
１：防眩面 ２：液晶セル ３：光拡散層 ４：液晶表示装置 ５：前面側直線偏光板 ６：背面側の直線偏光板： ７：位相差板 ８：接着剤層 1: anti-glare surface 2: liquid crystal cell 3: light diffusion layer 4: liquid crystal display device 5: front side linear polarizing plate 6: back side linear polarizing plate: 7: retardation plate 8: adhesive layer
Claims (4)
表示装置であって、画素ピッチ（ａ）が１０μｍ以上１
００μｍ以下である液晶セルを有し、液晶セルの前面側
に内部ヘイズが３〜５０％である光拡散層を有すること
を特徴とする液晶表示装置。1. A liquid crystal display device having an antiglare surface having irregularities on the outermost surface, wherein a pixel pitch (a) is 10 μm or more and 1 μm or more.
A liquid crystal display device comprising: a liquid crystal cell having a thickness of not more than 00 μm; and a light diffusion layer having an internal haze of 3 to 50% on the front side of the liquid crystal cell.
は異なる屈折率を有する粒子が分散されている接着剤層
である請求項１に記載の液晶表示装置。2. The liquid crystal display device according to claim 1, wherein the light diffusion layer is an adhesive layer in which particles having a different refractive index from the adhesive component are dispersed in the adhesive component.
が０．０２以上である請求項２に記載の液晶表示装置。3. The liquid crystal display device according to claim 2, wherein the difference between the refractive index of the adhesive component and the refractive index of the particles is 0.02 or more.
項２に記載の液晶表示装置。4. The liquid crystal display device according to claim 2, wherein the particles have an average particle size of 2 to 7 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11121956A JP2000314875A (en) | 1999-04-28 | 1999-04-28 | Liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11121956A JP2000314875A (en) | 1999-04-28 | 1999-04-28 | Liquid crystal display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000314875A true JP2000314875A (en) | 2000-11-14 |
| JP2000314875A5 JP2000314875A5 (en) | 2006-04-13 |
Family
ID=14824080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11121956A Pending JP2000314875A (en) | 1999-04-28 | 1999-04-28 | Liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000314875A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003005657A (en) * | 2001-06-21 | 2003-01-08 | Nissha Printing Co Ltd | Cover part for display part |
| JP2008164884A (en) * | 2006-12-28 | 2008-07-17 | Hitachi Displays Ltd | Liquid crystal display device and plasma display device |
| WO2020178922A1 (en) * | 2019-03-01 | 2020-09-10 | シャープ株式会社 | Display device |
| CN115220252A (en) * | 2022-07-15 | 2022-10-21 | 上海天马微电子有限公司 | Display panel and display device |
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| JP2003005657A (en) * | 2001-06-21 | 2003-01-08 | Nissha Printing Co Ltd | Cover part for display part |
| JP2008164884A (en) * | 2006-12-28 | 2008-07-17 | Hitachi Displays Ltd | Liquid crystal display device and plasma display device |
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| CN115220252A (en) * | 2022-07-15 | 2022-10-21 | 上海天马微电子有限公司 | Display panel and display device |
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