JP2002139607A - Light scattering functional film - Google Patents
Light scattering functional filmInfo
- Publication number
- JP2002139607A JP2002139607A JP2000375296A JP2000375296A JP2002139607A JP 2002139607 A JP2002139607 A JP 2002139607A JP 2000375296 A JP2000375296 A JP 2000375296A JP 2000375296 A JP2000375296 A JP 2000375296A JP 2002139607 A JP2002139607 A JP 2002139607A
- Authority
- JP
- Japan
- Prior art keywords
- light scattering
- functional film
- resin
- light
- scattering functional
- 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
Landscapes
- Optical Elements Other Than Lenses (AREA)
- Liquid Crystal (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、液晶表示装置（反射
型、透過型、半透過型）での外光（太陽光・室内用電灯
や液晶表示装置に付属した補助光源など）や自発光型表
示装置（無機ＥＬ、有機ＥＬ、ＦＥＤ、ＰＤＰなど）の
発光を効率よく利用することが可能となる光散乱機能膜
に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display device (reflection type, transmission type, semi-transmission type) and external light (sunlight, indoor light, auxiliary light source attached to a liquid crystal display device, etc.) and self light emission. The present invention relates to a light-scattering function film capable of efficiently using light emission of a type display device (inorganic EL, organic EL, FED, PDP, etc.).
【０００２】[0002]
【従来の技術】従来は、光を拡散させるためには、拡散
板や反射電極に凹凸を付けたり、拡散フィルムなどによ
って外光を拡散していた。2. Description of the Related Art Conventionally, in order to diffuse light, irregularities are provided on a diffusion plate or a reflection electrode, or external light is diffused by a diffusion film or the like.
【０００３】[0003]
【発明しようとする課題】これには、次のような欠点が
あった。 （１）拡散板を用いると、部品点数が増え、それにより
製造工程の増加しいてはコストアップの原因となる。 （２）反射電極に凹凸を付ける場合は、フォトリソグラ
フィーを用いるため、製造工程の増加さらに形状コント
ロールが複雑であった。 （３）拡散フィルムを用いると、画像の鮮明さに欠け、
十分な表示品位が得られなかった。This has the following disadvantages. (1) When a diffusion plate is used, the number of parts increases, which leads to an increase in the number of manufacturing steps and an increase in cost. (2) Since photolithography is used when forming irregularities on the reflective electrode, the number of manufacturing steps is increased, and shape control is complicated. (3) When a diffusion film is used, the image lacks sharpness,
Sufficient display quality was not obtained.
【０００４】[0004]
【課題を解決するための手段】加工時に熱などのエネル
ギーを与えることで無数の微小気泡部（２）を生じる樹
脂（１）を液晶表示装置の必要な部位に塗布する。以上
の構成を有する液晶表示装置とその搭載機器である。Means for Solving the Problems A resin (1) that generates an infinite number of microbubble portions (2) by applying energy such as heat during processing is applied to a necessary portion of a liquid crystal display device. A liquid crystal display device having the above configuration and a device mounted thereon.
【０００５】[0005]
【作用】加工時に熱などのエネルギーを加えることで無
数の微小気泡が樹脂内に発生し、それらの屈折率差から
その部位は光を散乱させる機能となる。[Function] When energy such as heat is applied during processing, countless microbubbles are generated in the resin, and the portion has a function of scattering light from the difference in refractive index between them.
【０００６】[0006]
【実施例】以下、本発明の実施例について説明する。発
泡性樹脂を少なくとも１箇所の必要な部位に塗布する。
必要な部位とは、例えば液晶表示装置の場合は、基板と
反射電極との中間層、反射電極と透明電極との中間層、
透明電極とカラーフィルターとの中間層、基板と透明電
極との中間層、基板とカラーフィルターとの中間層など
を言う。その後、熱硬化により基材と微小球体を必要部
位に固着させる。この構造を反射型液晶表示装置に用い
ると従来に比べ、光拡散反射率が約５０％向上すること
ができる。また、透過型液晶表示装置に用いると約２５
％の輝度向上を達成することができる。あるいは、無機
ＥＬや有機ＥＬ表示装置の場合、素子を保護するカバー
ガラスの素子側にこの部位を設けても、同様な効果が得
られる。Embodiments of the present invention will be described below. The foamable resin is applied to at least one required part.
The necessary parts are, for example, in the case of a liquid crystal display device, an intermediate layer between the substrate and the reflective electrode, an intermediate layer between the reflective electrode and the transparent electrode,
An intermediate layer between a transparent electrode and a color filter, an intermediate layer between a substrate and a transparent electrode, an intermediate layer between a substrate and a color filter, and the like. Thereafter, the base material and the microspheres are fixed to the required portions by thermosetting. When this structure is used for a reflection type liquid crystal display device, the light diffuse reflectance can be improved by about 50% as compared with the related art. When used in a transmissive liquid crystal display, about 25
% Improvement in brightness can be achieved. Alternatively, in the case of an inorganic EL or organic EL display device, a similar effect can be obtained by providing this portion on the element side of a cover glass for protecting the element.
【０００７】[0007]
【発明の効果】複雑な工程や部品点数を増やすことな
く、発泡性樹脂を塗布するだけで、外光を効率よく利用
できる光散乱機能膜を得ることができ、従来より明るさ
を向上することができる。According to the present invention, it is possible to obtain a light-scattering functional film that can efficiently use external light by simply applying a foaming resin without increasing the number of complicated steps and the number of parts. Can be.
【図１】本発明の使用状態を示す断面図である。FIG. 1 is a sectional view showing a use state of the present invention.
１ 基板 ２ 光散乱機能膜 ２Ａ 発泡性樹脂 ２Ｂ 微小気泡部 DESCRIPTION OF SYMBOLS 1 Substrate 2 Light-scattering function film 2A Foamable resin 2B Microbubble part
Claims (1)
１）と樹脂部の屈折率（ｎ２）の屈折率差（ｎ２−ｎ１
＞０）を利用して光の散乱を引き起こすことを特徴とす
る光散乱機能膜。1. The refractive index (n) of microbubbles generated by firing
1 ) and the refractive index difference (n 2 −n 1 ) between the refractive index (n 2 ) of the resin portion.
> 0) a light scattering functional film characterized by causing light scattering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000375296A JP2002139607A (en) | 2000-11-01 | 2000-11-01 | Light scattering functional film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000375296A JP2002139607A (en) | 2000-11-01 | 2000-11-01 | Light scattering functional film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002139607A true JP2002139607A (en) | 2002-05-17 |
Family
ID=18844328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000375296A Pending JP2002139607A (en) | 2000-11-01 | 2000-11-01 | Light scattering functional film |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002139607A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004198978A (en) * | 2002-12-20 | 2004-07-15 | Keiwa Inc | Luminance-enhancing sheet for plasma display panel, and the plasma display panel system using the sheet |
| WO2019180838A1 (en) * | 2018-03-20 | 2019-09-26 | シャープ株式会社 | Display device and method for manufacturing same |
-
2000
- 2000-11-01 JP JP2000375296A patent/JP2002139607A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004198978A (en) * | 2002-12-20 | 2004-07-15 | Keiwa Inc | Luminance-enhancing sheet for plasma display panel, and the plasma display panel system using the sheet |
| WO2019180838A1 (en) * | 2018-03-20 | 2019-09-26 | シャープ株式会社 | Display device and method for manufacturing same |
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