JPH0667174A - Lamp reflector - Google Patents

Lamp reflector

Info

Publication number
JPH0667174A
JPH0667174A JP4219333A JP21933392A JPH0667174A JP H0667174 A JPH0667174 A JP H0667174A JP 4219333 A JP4219333 A JP 4219333A JP 21933392 A JP21933392 A JP 21933392A JP H0667174 A JPH0667174 A JP H0667174A
Authority
JP
Japan
Prior art keywords
light source
white
lamp reflector
resin layer
black
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.)
Granted
Application number
JP4219333A
Other languages
Japanese (ja)
Other versions
JP3355204B2 (en
Inventor
Yasunori Sugiyama
靖典 杉山
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kimoto Co Ltd
Original Assignee
Kimoto Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kimoto Co Ltd filed Critical Kimoto Co Ltd
Priority to JP21933392A priority Critical patent/JP3355204B2/en
Publication of JPH0667174A publication Critical patent/JPH0667174A/en
Application granted granted Critical
Publication of JP3355204B2 publication Critical patent/JP3355204B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Planar Illumination Modules (AREA)

Abstract

PURPOSE:To increase the luminance of a surface light source device by constituting the device with a resin without using a metal conductive body. CONSTITUTION:A lamp reflector 31 mounted at the light source of a surface light source device is provided with a white plastic film 4, a white resin coating layer 5 containing a white pigment and a black resin coating layer 6 containing a black dye pigment. The lamp reflector is mounted so that the surface on which the black resin layer is not laminated is in contact with the light source. As a result, the turning-on defect of the light source is prevented and the reflection is enhanced by increasing the hiding property of light from the light source. And flexibility is excellent and working efficiency is also improved.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、面状光源装置の光源の
ランプリフレクタに関し、特に光源からの光を効率良く
利用できる面状光源装置のリフレクタに関するものであ
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lamp reflector of a light source of a planar light source device, and more particularly to a reflector of a planar light source device which can efficiently use light from the light source.

【0002】[0002]

【従来の技術】従来から、液晶ディスプレイ等各種表示
装置や電飾看板等のバックライトとして面状光源装置が
用いられている。面状光源装置は、熱陰極管、冷陰極管
等の管状ランプ等の光源と、光源からの光を入射して面
状に発光させてディスプレイや看板等を裏面全面から照
射するための導光板とを備えている。このような面状光
源装置は高い輝度を得ることが要求される。そのため、
導光板に光源からの光を効率よく入射させるため、光源
の導光板と反対位置にリフレクタを配置し、光源からの
導光板方向以外に拡散する光を反射させている。リフレ
クタとしては、アルミ板、銀蒸着フィルム、あるいは特
開平3−256090号公報に記載されているような発
泡白色フィルムが用いられている。特に、面状光源とし
て高い輝度を得るために、反射率及び隠蔽力が高いため
効率良く光源の光を導光板に入射させる銀蒸着フィルム
が多用されている。
2. Description of the Related Art Conventionally, a planar light source device has been used as a backlight for various display devices such as a liquid crystal display and an illuminated signboard. The planar light source device is a light source such as a tubular lamp such as a hot cathode tube or a cold cathode tube, and a light guide plate for irradiating light from the light source to emit light in a planar manner and illuminate a display or a signboard from the entire back surface. It has and. Such a planar light source device is required to obtain high brightness. for that reason,
In order to allow light from the light source to efficiently enter the light guide plate, a reflector is arranged at a position opposite to the light guide plate of the light source to reflect light diffused from the light source in directions other than the light guide plate direction. As the reflector, an aluminum plate, a silver vapor deposition film, or a foamed white film as described in JP-A-3-256090 is used. In particular, in order to obtain high brightness as a planar light source, a silver vapor deposition film that efficiently allows light from the light source to enter the light guide plate is often used because of its high reflectance and hiding power.

【0003】[0003]

【発明が解決しようとする課題】しかしながら、リフレ
クタとして銀蒸着フィルムを用いた場合、光源の熱陰極
管、冷陰極管等の管状ランプに導体である銀が近接する
ため、光源が発振したり、点灯不良を起こすという欠点
があった。また、リフレクタは光源の周囲に巻き付けて
使用するため、フィルムには柔軟性、可撓性が必要であ
り、発泡白色フィルムをリフレクタに使用する場合には
特開平3−256090号公報に記載されているよう
に、フィルムの厚みは75μm程度が限界であった。こ
のような厚みの薄い発泡白色フィルムをリフレクタに用
いた場合、光源の点灯不良は防止できるが、隠蔽性が悪
く光源の光を外部に漏らしてしまうという欠点があっ
た。また、反射率が低いため効率よく光源の光を導光板
に入射できず、面状光源としての輝度が低くなってしま
うという欠点もあった。
However, when a silver vapor-deposited film is used as the reflector, the light source oscillates because the conductor silver is close to the tubular lamp such as the hot cathode tube or cold cathode tube of the light source. There was a drawback that it caused lighting failure. Further, since the reflector is used by being wrapped around the light source, the film needs to have flexibility and flexibility. When the foamed white film is used for the reflector, it is described in JP-A-3-256090. As described above, the thickness of the film was limited to about 75 μm. When such a thin foam white film is used for the reflector, it is possible to prevent the lighting failure of the light source, but there is a disadvantage that the light of the light source is leaked to the outside because the concealing property is poor. Moreover, since the reflectance is low, the light from the light source cannot be efficiently incident on the light guide plate, and the brightness as a planar light source is low.

【0004】本発明は上記欠点を解消するためになされ
たものであって、光源の点灯不良を生ずることがなく、
効率よく光源の光を導光板に入射させ、そのため輝度の
高い面状光源とすることができるランプリフレクタを提
供することを目的とする。
The present invention has been made to solve the above-mentioned drawbacks, and does not cause lighting failure of the light source.
It is an object of the present invention to provide a lamp reflector that can efficiently enter light from a light source into a light guide plate and thus can form a planar light source with high brightness.

【0005】[0005]

【課題を解決するための手段】上記目的を達成するた
め、本発明のランプリフレクタは、面状光源装置の光源
のランプリフレクタであって、白色プラスチックフィル
ムの少なくとも一方の面に白色顔料を含む白色樹脂層を
設けたものである。また、面状光源装置の光源のランプ
リフレクタであって、白色プラスチックフィルムの少な
くとも一方の面に白色顔料を含む白色樹脂層を設け、更
に光源に対向しない面に黒色染顔料を含む黒色樹脂層を
設けたものであってもよい。
In order to achieve the above object, the lamp reflector of the present invention is a lamp reflector for a light source of a planar light source device, wherein a white plastic film contains white pigment on at least one surface thereof. A resin layer is provided. Further, in a lamp reflector of a light source of a planar light source device, a white resin layer containing a white pigment is provided on at least one surface of a white plastic film, and a black resin layer containing a black dye pigment is provided on a surface not facing the light source. It may be provided.

【0006】以下、本発明のランプリフレクタを詳細に
説明する。図1に示す面状光源装置Sは、導光板2と、
導光板2の1側面に配置された管状光源1と、管状光源
1の外周に装着されたランプリフレクタ3とを備えたも
のである。このような面状光源装置Sのランプリフレク
タ3は、図2に示すように白色プラスチックフィルム4
の一方の面に、白色顔料を含む白色樹脂層5を設けた積
層体であり、管状光源1に装着されて用いられる。管状
光源1に装着された時、管状光源1の周囲を白色樹脂層
5面を内側として覆うように装着されてもよいし、ある
いは、白色プラスチックフィルム4面を内側として覆う
ように装着してもよい。また、白色樹脂層5は、図示は
しないが白色プラスチックフィルム4の両面に設けても
よい。
The lamp reflector of the present invention will be described in detail below. The planar light source device S shown in FIG. 1 includes a light guide plate 2 and
The light source includes a tubular light source 1 arranged on one side surface of the light guide plate 2 and a lamp reflector 3 mounted on the outer periphery of the tubular light source 1. The lamp reflector 3 of such a planar light source device S has a white plastic film 4 as shown in FIG.
It is a laminated body in which a white resin layer 5 containing a white pigment is provided on one surface of the one side and is used by being attached to the tubular light source 1. When mounted on the tubular light source 1, the tubular light source 1 may be mounted so as to cover the white resin layer 5 side as the inner side, or may be mounted so as to cover the white plastic film 4 side as the inner side. Good. The white resin layer 5 may be provided on both sides of the white plastic film 4, although not shown.

【0007】また、図3に示すように、ランプリフレク
タ31として、白色プラスチックフィルム4に白色樹脂
層5、黒色樹脂層6を順次積層した積層体としてもよ
い。また、図示はしないが、白色樹脂層5が白色プラス
チックフィルム4の一面に設けられ、黒色樹脂層6を他
面に設けたものであってもよい。いずれの場合も、黒色
樹脂層6が管状光源1の反対側面になるように管状光源
1に装着されて用いられる。
Further, as shown in FIG. 3, the lamp reflector 31 may be a laminate in which a white resin layer 5 and a black resin layer 6 are sequentially laminated on a white plastic film 4. Although not shown, the white resin layer 5 may be provided on one surface of the white plastic film 4 and the black resin layer 6 may be provided on the other surface. In either case, the black resin layer 6 is used by being attached to the tubular light source 1 such that the black resin layer 6 is on the opposite side of the tubular light source 1.

【0008】このようなランプレフレクタ3、31の白
色プラスチックフィルム4は、基板としての作用を有
し、可撓性を具備したものであり、ポリエチレン、ポリ
エチレンテレフタレート、ポリプロピレン、塩化ビニル
等の白色フィルムが好ましく、特に反射率の点から発泡
白色ポリエステルフィルムが好ましい。また、白色顔料
を含有した白色樹脂層5は隠蔽性を付与し、管状光源1
の光を反射させるものである。白色樹脂層5の材質は、
樹脂としては、ウレタン系、アクリル系、エポキシ系、
ビニル系、ポリエステル系、ポリアミド系、ゴム系等の
合成樹脂が使用でき、白色顔料としては、酸化チタン、
酸化亜鉛、硫酸バリウム、炭酸カルシウム、炭酸マグネ
シウム、水酸化アルミニウム、マイカ、タルク、クレー
等を用いることができる。これらの樹脂、顔料は単独で
用いても良いし、2種類以上を混合して用いても良い。
このような塗料またはインクには、分散性、塗布性を改
善するために、分散剤、レベリング剤等の添加剤を必要
に応じて添加することができる。
The white plastic film 4 of the lamp reflectors 3 and 31 has a function as a substrate and is flexible, and is a white film made of polyethylene, polyethylene terephthalate, polypropylene, vinyl chloride or the like. In particular, a foamed white polyester film is preferable from the viewpoint of reflectance. In addition, the white resin layer 5 containing a white pigment imparts hiding power, and the tubular light source 1
It reflects the light of. The material of the white resin layer 5 is
As resin, urethane type, acrylic type, epoxy type,
Synthetic resins such as vinyl-based, polyester-based, polyamide-based, and rubber-based can be used, and white pigments include titanium oxide,
Zinc oxide, barium sulfate, calcium carbonate, magnesium carbonate, aluminum hydroxide, mica, talc, clay and the like can be used. These resins and pigments may be used alone or in combination of two or more.
If necessary, additives such as a dispersant and a leveling agent can be added to such a paint or ink in order to improve dispersibility and coatability.

【0009】このようにして調製された塗料またはイン
クを白色プラスチックフィルム4に設けるには、バーコ
ーティング法、ロールコーティング法、スプレーコーテ
ィング法、ディップコーティング法等の塗布法、シルク
スクリーン印刷、オフセット印刷、グラビヤ印刷等によ
る全面印刷法が使用可能で、所望の厚さで均一に形成さ
れ、塗膜として可撓性を有するものである。
To apply the paint or ink thus prepared to the white plastic film 4, coating methods such as bar coating method, roll coating method, spray coating method and dip coating method, silk screen printing, offset printing, A full-face printing method such as gravure printing can be used, the film is uniformly formed with a desired thickness, and has flexibility as a coating film.

【0010】白色樹脂層5上に形成される黒色樹脂層6
は、管状光源1の光の隠蔽性を向上させるものである。
黒色樹脂層6を形成する樹脂としては、ウレタン系、ア
クリル系、エポキシ系、ビニル系、ポリエステル系、ポ
リアミド系、ゴム系等の合成樹脂が使用でき、着色剤と
してSpilon Black MH special
(保土谷化学工業株式会社製)、Neozapon B
lack RE(BASF社製)等の黒色染料、カーボ
ンブラック、チタンブラック等の黒色顔料が添加され
る。これらの樹脂、染顔料は単独で用いても良いし、2
種類以上を混合して用いても良い。このような塗料また
はインクには、分散性、塗布性を改善するために、分散
剤、レベリング剤等の添加剤を必要に応じて添加するこ
とができる。
Black resin layer 6 formed on white resin layer 5
Is for improving the light concealing property of the tubular light source 1.
As the resin forming the black resin layer 6, synthetic resins such as urethane-based, acrylic-based, epoxy-based, vinyl-based, polyester-based, polyamide-based, and rubber-based can be used, and Spiron Black MH special is used as a colorant.
(Manufactured by Hodogaya Chemical Co., Ltd.), Neozapon B
Black dyes such as black RE (manufactured by BASF) and black pigments such as carbon black and titanium black are added. These resins and dyes and pigments may be used alone, or 2
You may use it in mixture of 2 or more types. If necessary, additives such as a dispersant and a leveling agent can be added to such a paint or ink in order to improve dispersibility and coatability.

【0011】このようにして調製された塗料またはイン
クを用いて黒色樹脂層6を形成するには、白色樹脂層5
上に均一に塗布または印刷により形成する。塗布または
印刷方法としては、バーコーティング法、ロールコーテ
ィング法、スプレーコーティング法、ディップコーティ
ング法等の塗布法、シルクスクリーン印刷、オフセット
印刷、グラビヤ印刷等による全面印刷法が使用できる。
In order to form the black resin layer 6 using the paint or ink thus prepared, the white resin layer 5
It is formed by uniformly coating or printing on the top. As the coating or printing method, a coating method such as a bar coating method, a roll coating method, a spray coating method or a dip coating method, or an entire surface printing method such as silk screen printing, offset printing or gravure printing can be used.

【0012】このような積層体のランプレフレクタ3、
31は、管状光源1の外周に装着するため柔軟性、可撓
性が要求される。この場合の柔軟性、可撓性の範囲につ
いては、円型押し込み法で10mm押し込むのに必要な
応力が20g/inch以下が好ましい。ここでいう円
型押し込み法とは図5に示すように、幅1inch、円
周の長さ100mmの円筒状に調整した試料を10mm
押し込み、その時の応力を測定する方法をいう。
A lamp reflector 3 having such a laminated body,
Since 31 is attached to the outer circumference of the tubular light source 1, flexibility and flexibility are required. Regarding the flexibility and the range of flexibility in this case, it is preferable that the stress necessary for pushing in 10 mm by the circular pushing method is 20 g / inch or less. The circular indentation method referred to here is, as shown in FIG. 5, 10 mm for a sample prepared into a cylindrical shape having a width of 1 inch and a circumference of 100 mm.
It is a method of pressing and measuring the stress at that time.

【0013】ここで一般に、フィルムの可撓性を向上さ
せるためには、同じ厚さのものであるならば多層である
方が可撓性が高く、本発明のランプレフレクタとして、
可撓性を更に向上させるために、白色プラスチックフィ
ルム4を2層構造にしてもよい。白色プラスチックフィ
ルム4を2層にするには、前述の白色プラスチックフィ
ルム4の同種または異種をアクリル系、ビニル系、ゴム
系、シリコン系、ポリエステル系等の粘着剤でラミネー
トする。
In general, in order to improve the flexibility of the film, if the film has the same thickness, the multilayer has higher flexibility, and as a lamp reflector of the present invention,
In order to further improve flexibility, the white plastic film 4 may have a two-layer structure. In order to make the white plastic film 4 into two layers, the same kind or different kinds of the white plastic film 4 described above is laminated with an adhesive such as an acrylic type, a vinyl type, a rubber type, a silicon type and a polyester type.

【0014】また、他の実施例として、図4に示すよう
に、白色プラスチックフィルム41の一方の面に白色樹
脂層7を一体成型したランプリフレクタ32でもよい。
この場合も、図では白色樹脂層7を管状光源1の外側に
設けているが、白色樹脂層7を内側にして設けてもよい
し、両面に設けてもよい。また、図示はしないが、ラン
プリフレクタ32の白色樹脂層7の外側に黒色樹脂層を
設けたものであってもよい。
As another embodiment, as shown in FIG. 4, a lamp reflector 32 in which a white resin layer 7 is integrally molded on one surface of a white plastic film 41 may be used.
Also in this case, the white resin layer 7 is provided outside the tubular light source 1 in the figure, but the white resin layer 7 may be provided inside or on both sides. Although not shown, a black resin layer may be provided outside the white resin layer 7 of the lamp reflector 32.

【0015】ランプリフレクタ32を一体成型で製造す
るには、前述の白色プラスチックフィルムと、前述の白
色顔料を練り込んだ前述の白色樹脂層を形成する樹脂と
を、公知の成型方法で管状光源1を嵌合するような形状
の2層構造に成型すればよい。
In order to integrally manufacture the lamp reflector 32, the above-mentioned white plastic film and the resin forming the above-mentioned white resin layer in which the above-mentioned white pigment is kneaded are formed by a known molding method in the tubular light source 1. It may be molded into a two-layer structure having a shape that fits.

【0016】[0016]

【作用】本発明は、面状光源装置の光源のランプリフレ
クタとして、樹脂で構成され金属導体を使用しないた
め、光源の点灯不良を解消でき、しかも光源からの光の
隠蔽性を増加させ反射率を高めることができる。
According to the present invention, since the lamp reflector of the light source of the planar light source device does not use the metal conductor made of resin, the defective lighting of the light source can be eliminated, and the concealing property of the light from the light source is increased to improve the reflectance. Can be increased.

【0017】[0017]

【実施例】実施例1〜4に記載のランプリフレクタを作
製した。 [実施例1]以下の組成の白色樹脂塗料を、発泡白色ポ
リエステルフィルム(ルミラーE−60、75μm:東
レ株式会社製)の片面に、乾燥塗膜厚30μmになるよ
うに塗布し、図2に示すランプリフレクタ3を作製し
た。 (白色樹脂塗料組成) ・ラッカー型ウレタン樹脂 20重量部 (バーノック16−411:大日本インキ化学工業株式会社製) ・二酸化チタン(タイペークR−900:デュポン社製) 50重量部 ・キシレン 30重量部 ランプリフレクタ3の隠蔽性、反射率、柔軟性を以下の
方法により測定した。隠蔽性は、Machbeth T
D−904濃度計(Machbeth社製)オルソフィ
ルターにより透過濃度を測定した。反射率はUV−31
01分光光度計(株式会社島津製作所製)により波長5
50nmの分光反射率を測定した。柔軟性は前述の円型
押し込み法で測定した。結果を表1に示す。
EXAMPLES The lamp reflectors described in Examples 1 to 4 were manufactured. [Example 1] A white resin paint having the following composition was applied to one side of a foamed white polyester film (Lumirror E-60, 75 µm: manufactured by Toray Industries, Inc.) so that a dry coating film thickness was 30 µm. The lamp reflector 3 shown was produced. (White resin coating composition) -Lacquer type urethane resin 20 parts by weight (Barnock 16-411: manufactured by Dainippon Ink and Chemicals, Inc.)-Titanium dioxide (Taipaque R-900: manufactured by DuPont) 50 parts by weight-Xylene 30 parts by weight The hiding power, reflectance, and flexibility of the lamp reflector 3 were measured by the following methods. Concealability is Machbeth T
The transmission density was measured with a D-904 densitometer (Machbeth) ortho filter. The reflectance is UV-31
01 spectrophotometer (Shimadzu Corporation) wavelength 5
The spectral reflectance at 50 nm was measured. Flexibility was measured by the circular indentation method described above. The results are shown in Table 1.

【0018】更に、ランプリフレクタ3を、4¢、管面
輝度30、000cd/m2 2灯のランプ、幅240
mm、長さ165mm、厚み4mmの導光板、発泡白色
フィルム(ルミラーE−60、188μm厚:東レ株式
会社製)の反射板、ライトアップ75PBA(株式会社
きもと製)の拡散フィルムで構成される面状光源装置の
ランプに装着した。面状光源装置の平均輝度を輝度計C
S−100(ミノルタカメラ株式会社製)により測定し
た。結果を表1に示す。 [実施例2]実施例1と同様のランプリフレクタ3の白
色樹脂層上に、以下の組成の黒色塗料を乾燥塗膜厚2μ
mになるように塗布し、図3に示すランプリフレクタ3
1を作製した。 (黒色塗料組成) ・アクリルエマルジョン 25重量部 (ボンコートDV−759:大日本インキ化学工業株式会社製) ・カーボンブラック(MA−100:三菱化成株式会社製) 1重量部 ・水 74重量部 ランプリフレクタ31の隠蔽性、反射率、柔軟性を実施
例1に示す方法と同様の方法により測定した。結果を表
1に示す。更に、ランプリフレクタ31を実施例1に示
した面状光源装置と同様の面状光源装置の光源に装着
し、同様に平均輝度を測定した。結果を表1に示す。 [実施例3]発泡白色ポリエステルフィルム(ルミラー
E−60、50μm厚:東レ株式会社製)と白色ポリエ
ステルフィルム(ルミラーE−20、38μm厚:東レ
株式会社製)を以下の組成の粘着剤でラミネートし、ラ
ンプリフレクタを作製した。 (粘着剤組成) ・アクリル系粘着剤(SKダインAG105:綜研化学株式会社製)97重量部 ・硬化剤(コロネートL:日本ポリウレタン工業株式会社製) 3重量部 ランプリフレクタの隠蔽性、反射率、柔軟性を実施例1
に示す方法と同様の方法により測定した。結果を表1に
示す。更に、ランプリフレクタを実施例1に示した面状
光源装置と同様の面状光源装置の光源に装着し、同様に
平均輝度を測定した。結果を表1に示す。 [実施例4]白色アクリル板(スミペックス068 2
mm厚:住友化学工業株式会社製)と発泡白色ポリエス
テルフィルム(ルミラーE−60、75μm厚:東レ株
式会社製)を実施例3で示した粘着剤と同様の粘着剤で
ラミネートしたのち、内径5mmのC型筒状に成型加工
し、図4に示すランプリフレクタ32を作製した。
Further, the lamp reflector 3 is provided with 4 cm, a tube surface luminance of 30,000 cd / m 2 2 lamps, and a width of 240.
mm, length 165 mm, thickness 4 mm, light guide plate, foam white film (Lumirror E-60, thickness of 188 μm: manufactured by Toray Industries, Inc.), light-up 75PBA (manufactured by Kimoto Co., Ltd.) diffusion film It was attached to the lamp of the light source device. The average luminance of the planar light source device is measured by a luminance meter C
It was measured with S-100 (manufactured by Minolta Camera Co., Ltd.). The results are shown in Table 1. [Example 2] On a white resin layer of the same lamp reflector 3 as in Example 1, a black paint having the following composition was dried to a film thickness of 2μ.
m so that the lamp reflector 3 shown in FIG.
1 was produced. (Black paint composition) -Acrylic emulsion 25 parts by weight (Boncoat DV-759: manufactured by Dainippon Ink and Chemicals, Inc.)-Carbon black (MA-100: manufactured by Mitsubishi Kasei Co., Ltd.) 1 part by weight-Water 74 parts by weight Lamp reflector The hiding property, reflectance, and flexibility of No. 31 were measured by the same methods as those shown in Example 1. The results are shown in Table 1. Further, the lamp reflector 31 was attached to a light source of a planar light source device similar to the planar light source device shown in Example 1, and the average luminance was measured in the same manner. The results are shown in Table 1. [Example 3] A foamed white polyester film (Lumirror E-60, 50 µm thickness: manufactured by Toray Industries, Inc.) and a white polyester film (Lumirror E-20, 38 µm thickness: manufactured by Toray Industries, Inc.) are laminated with an adhesive having the following composition. Then, a lamp reflector was manufactured. (Adhesive composition) -Acrylic adhesive (SK Dyne AG105: manufactured by Soken Kagaku Co., Ltd.) 97 parts by weight-Curing agent (Coronate L: manufactured by Nippon Polyurethane Industry Co., Ltd.) 3 parts by weight Concealment of the lamp reflector, reflectance, Example 1 for flexibility
It measured by the method similar to the method shown in. The results are shown in Table 1. Further, the lamp reflector was attached to a light source of a planar light source device similar to the planar light source device shown in Example 1, and the average luminance was measured in the same manner. The results are shown in Table 1. [Example 4] White acrylic plate (SUMIPEX 0682)
mm thickness: manufactured by Sumitomo Chemical Co., Ltd.) and a foamed white polyester film (Lumirror E-60, 75 μm thickness: manufactured by Toray Co., Ltd.) are laminated with the same adhesive as the adhesive shown in Example 3, and then the inner diameter is 5 mm. Then, the lamp reflector 32 shown in FIG.

【0019】ランプリフレクタ32の隠蔽性、反射率を
実施例1に示す方法と同様の方法により測定した。結果
を表1に示す。更に、ランプリフレクタ32を実施例1
に示した面状光源装置と同様の面状光源装置の光源に装
着し、同様に平均輝度を測定した。結果を表1に示す。 [比較例]比較例として、銀蒸着フィルム(GR38
W:株式会社きもと製)(比較例1)、発泡白色ポリエ
ステルフィルム(ルミラーE−60 75μm厚:東レ
株式会社製)(比較例2)、発泡白色ポリエステルフィ
ルム(ルミラーE−60 188μm厚:東レ株式会社
製)(比較例3)を用いて、実施例と同様の方法により
隠蔽性、反射率、柔軟性を測定した。結果を表1に示
す。また、実施例に示した面状光源装置と同様の面状光
源装置のランプに装着し、同様に平均輝度を測定した。
結果を表1に示す。
The concealing property and reflectance of the lamp reflector 32 were measured by the same method as that shown in Example 1. The results are shown in Table 1. Further, the lamp reflector 32 is used in the first embodiment.
It was mounted on a light source of a planar light source device similar to the planar light source device shown in, and the average luminance was similarly measured. The results are shown in Table 1. Comparative Example As a comparative example, a silver vapor deposition film (GR38
W: Made by Kimoto Co., Ltd. (Comparative Example 1), Foamed white polyester film (Lumirror E-60 75 μm thickness: Toray Co., Ltd.) (Comparative Example 2), Foamed white polyester film (Lumirror E-60 188 μm thickness: Toray Co., Ltd. (Company) (Comparative Example 3) was used to measure the hiding property, reflectance, and flexibility in the same manner as in the examples. The results are shown in Table 1. Further, it was mounted on a lamp of a planar light source device similar to the planar light source device shown in the example, and the average luminance was measured in the same manner.
The results are shown in Table 1.

【0020】[0020]

【表1】 [Table 1]

【0021】[0021]

【発明の効果】本発明によるランプリフレクタによれ
ば、樹脂で構成され金属導体を使用しないため、光源の
点灯不良を解消でき、しかも光源からの光の隠蔽性を増
加させ反射率を高めることができる。そのため、光源か
らの光を効率よく反射させて面状光源装置の輝度を非常
に高めることができる。しかも可撓性に優れたものであ
り、装着の際も効率よく行うことができる。
According to the lamp reflector of the present invention, since the metal reflector made of resin is not used, the lighting failure of the light source can be eliminated, and the concealing property of the light from the light source can be increased to enhance the reflectance. it can. Therefore, the light from the light source can be efficiently reflected and the brightness of the planar light source device can be greatly increased. Moreover, since it is excellent in flexibility, it can be mounted efficiently.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明のランプリフレクタが適用される面状光
源装置を示す構成図。
FIG. 1 is a configuration diagram showing a planar light source device to which a lamp reflector of the present invention is applied.

【図2】本発明のランプリフレクタの一実施例を示す側
面図。
FIG. 2 is a side view showing an embodiment of the lamp reflector of the present invention.

【図3】本発明のランプリフレクタの他の実施例を表す
側面図。
FIG. 3 is a side view showing another embodiment of the lamp reflector of the present invention.

【図4】本発明のランプリフレクタの他の実施例を表す
側面図。
FIG. 4 is a side view showing another embodiment of the lamp reflector of the present invention.

【図5】柔軟性、可撓性を測定する測定方法を示す図。FIG. 5 is a view showing a measuring method for measuring flexibility and flexibility.

【符号の説明】[Explanation of symbols]

1‥‥‥ランプ 3、31、32‥‥‥ランプリフレクタ 4、41‥‥‥白色プラスチックフィルム 5、7‥‥‥白色樹脂層 6‥‥‥黒色樹脂層 1 ... lamp 3, 31, 32 ... lamp reflector 4, 41 ... white plastic film 5, 7 ... white resin layer 6 ... black resin layer

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】面状光源装置の光源のランプリフレクタで
あって、白色プラスチックフィルムの少なくとも一方の
面に白色顔料を含む白色樹脂層を設けたことを特徴とす
るランプリフレクタ。
1. A lamp reflector for a light source of a planar light source device, wherein a white resin layer containing a white pigment is provided on at least one surface of a white plastic film.
【請求項2】面状光源装置の光源のランプリフレクタで
あって、白色プラスチックフィルムの少なくとも一方の
面に白色顔料を含む白色樹脂層を設け、更に前記光源に
対向しない面に黒色染顔料を含む黒色樹脂層を設けたこ
とを特徴とするランプリフレクタ。
2. A lamp reflector for a light source of a surface light source device, wherein a white resin layer containing a white pigment is provided on at least one surface of a white plastic film, and a black dye / pigment is included on a surface not facing the light source. A lamp reflector having a black resin layer.
JP21933392A 1992-08-18 1992-08-18 Lamp reflector Expired - Lifetime JP3355204B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21933392A JP3355204B2 (en) 1992-08-18 1992-08-18 Lamp reflector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21933392A JP3355204B2 (en) 1992-08-18 1992-08-18 Lamp reflector

Publications (2)

Publication Number Publication Date
JPH0667174A true JPH0667174A (en) 1994-03-11
JP3355204B2 JP3355204B2 (en) 2002-12-09

Family

ID=16733824

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21933392A Expired - Lifetime JP3355204B2 (en) 1992-08-18 1992-08-18 Lamp reflector

Country Status (1)

Country Link
JP (1) JP3355204B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002071915A (en) * 2000-09-04 2002-03-12 Toyobo Co Ltd Reflected light diffusing film for liquid crystal monitor
JP2002148415A (en) * 2000-11-13 2002-05-22 Toyobo Co Ltd Reflected light diffusing film for liquid crystal display and light reflecting sheet
WO2005068899A1 (en) * 2004-01-13 2005-07-28 Toray Industries, Inc. Lighting reflection plate and information displaying backlight device
US7754324B2 (en) * 2003-05-20 2010-07-13 Mitsubishi Plastics, Inc. Aliphatic polyester based resin reflection film and reflection plate

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7273640B2 (en) 2003-11-21 2007-09-25 Rohm And Haas Denmark Finance A/S Highly reflective optical element

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002071915A (en) * 2000-09-04 2002-03-12 Toyobo Co Ltd Reflected light diffusing film for liquid crystal monitor
JP4604324B2 (en) * 2000-09-04 2011-01-05 東洋紡績株式会社 Reflector for LCD monitor
JP2002148415A (en) * 2000-11-13 2002-05-22 Toyobo Co Ltd Reflected light diffusing film for liquid crystal display and light reflecting sheet
JP4604338B2 (en) * 2000-11-13 2011-01-05 東洋紡績株式会社 Light reflecting sheet for LCD
US7754324B2 (en) * 2003-05-20 2010-07-13 Mitsubishi Plastics, Inc. Aliphatic polyester based resin reflection film and reflection plate
US8197929B2 (en) * 2003-05-20 2012-06-12 Mitsubishi Plastics, Inc. Aliphatic polyester based resin reflection film and reflection plate
WO2005068899A1 (en) * 2004-01-13 2005-07-28 Toray Industries, Inc. Lighting reflection plate and information displaying backlight device
JPWO2005068899A1 (en) * 2004-01-13 2007-12-27 東レ株式会社 Reflector for illumination and backlight device for information display
US7562990B2 (en) 2004-01-13 2009-07-21 Toray Industries, Inc. Reflector for lighting and back light device for displaying information
JP4946053B2 (en) * 2004-01-13 2012-06-06 東レ株式会社 Reflector for illumination and backlight device for information display

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