JPH0488392A - Plane light source panel for edge light - Google Patents
Plane light source panel for edge lightInfo
- Publication number
- JPH0488392A JPH0488392A JP2204480A JP20448090A JPH0488392A JP H0488392 A JPH0488392 A JP H0488392A JP 2204480 A JP2204480 A JP 2204480A JP 20448090 A JP20448090 A JP 20448090A JP H0488392 A JPH0488392 A JP H0488392A
- Authority
- JP
- Japan
- Prior art keywords
- substrate
- sheet
- transparent resin
- light source
- screen printing
- 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
Links
- 239000000758 substrate Substances 0.000 claims abstract description 91
- 229920005989 resin Polymers 0.000 claims abstract description 75
- 239000011347 resin Substances 0.000 claims abstract description 75
- 238000009792 diffusion process Methods 0.000 claims abstract description 32
- 238000007650 screen-printing Methods 0.000 claims abstract description 23
- 230000002093 peripheral effect Effects 0.000 claims abstract description 6
- 238000005304 joining Methods 0.000 abstract description 13
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000005286 illumination Methods 0.000 abstract description 7
- 230000008878 coupling Effects 0.000 abstract 3
- 238000010168 coupling process Methods 0.000 abstract 3
- 238000005859 coupling reaction Methods 0.000 abstract 3
- 230000002159 abnormal effect Effects 0.000 abstract 1
- 230000001788 irregular Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 7
- 238000001723 curing Methods 0.000 description 4
- 239000004925 Acrylic resin Substances 0.000 description 3
- 229920000178 Acrylic resin Polymers 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000000554 iris Anatomy 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、液晶バックライト、照明デイスプレィ、照明
サイン、照明体等の各種面光源装置に用いられるエツジ
ライト用面光源パネルに関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a surface light source panel for edge lights used in various surface light source devices such as liquid crystal backlights, illuminated displays, illuminated signs, and illumination bodies.
この種エツジライト用面光源パネルは、一般に一側表面
に、例えばスクリーン印刷、ショットフラストによる微
細網点状等の乱反射層を形成したアクリル樹脂等光透過
性に優れた透明樹脂基板を用い、この基板のエツジ面に
蛍光管冷絵極管等の一一次光源を近接して臨ませて面光
源袈応とし、−次光蒙か′らの入射光により面光源パネ
ルの全体を可及的に高輝度且つ均一に照明すべきものと
される。This type of edgelight surface light source panel generally uses a transparent resin substrate with excellent light transmittance, such as acrylic resin, on one side of which is formed a diffuse reflection layer in the form of fine mesh dots, for example, by screen printing or shot frust. A primary light source such as a fluorescent tube or cold picture tube is placed close to the edge of the panel to form a surface light source panel, and the entire surface light source panel is illuminated as much as possible by the incident light from the second light source. It is assumed that the illumination should be high brightness and uniform.
透明樹脂基板には、このため、例えば乳白色ポリエステ
ル樹脂製のフィルム状シートによる、照明面側の拡散シ
ート、背面側の反射シートを、透明樹脂基板の全面を被
覆するよう配設し、拡散シートにより乱反射面の表出を
抑止するとともに乱反射光を拡散せしめて主に均一性向
上に、反射シートにより背面側への光透道にによる損失
を抑止して輝度向上にそれぞれ寄与せしめるものとされ
ている。For this purpose, a diffusion sheet on the illumination surface side and a reflection sheet on the rear side, which are made of a film-like sheet made of milky white polyester resin, are arranged on the transparent resin substrate so as to cover the entire surface of the transparent resin substrate. It is said that it mainly contributes to improving uniformity by suppressing the appearance of the diffused reflection surface and diffusing the diffused reflected light, and to improving brightness by suppressing the loss due to light transmission to the back side with the reflective sheet. .
拡散シート、反射シートは透明樹脂基板を基準にすると
その一側表面にいずれか一方を設ける、例えば複数の基
板を私層状に用いる場合と、両表面に双方を設ける１例
えば単一の基板を用いたり、また積層状に設けるにして
も基板間に更に拡散シートを介設する場合とかあるか、
この配設は透明樹脂基板に一体的に接合するのか筒便て
あり、一般には透明樹脂基板とこれらシート間に両面結
石テープを介設せしめるようにしたもの又は超音波接着
手段により所足箇所をスポット的に接合するようにした
ものか知られている。When using a transparent resin substrate as a reference, one of the diffusion sheets and reflective sheets can be provided on one side of the substrate, for example, when multiple substrates are used as a layer, and the other is the case where both are provided on both surfaces, for example, when using a single substrate. Or, even if it is installed in a laminated form, is there a case where a diffusion sheet is further interposed between the substrates?
This arrangement can be made by integrally bonding to the transparent resin substrate, but generally a double-sided calculus tape is interposed between the transparent resin substrate and these sheets, or the required location is attached using ultrasonic adhesive means. It is known that they are joined in spots.
然るに両面粘着テープによる場合、これか照明面に掛っ
たりすることのないように、例えば数層菖以下の細幅の
ものを用いることか必要となる一方て、シートにズレや
捩れ等か生しないようにすることも必要となるのて、−
船釣には機械化か困鮭て人手作業に依存せざるを得す、
作業か煩雑であるとともに生産効率か悪く１面光姫パネ
ルの量産に不適である。However, when double-sided adhesive tape is used, it is necessary to use a tape with a narrow width, such as several layers of irises, so that it does not hang on the lighting surface, and at the same time, it does not cause the sheet to shift or twist. It is also necessary to make -
Boat fishing is difficult to mechanize and has to rely on manual labor.
The work is complicated and the production efficiency is poor, making it unsuitable for mass production of one-sided Hikarihime panels.
また超音波接着による場合は、量産には好適であるか、
スポット状の接合になることによって、例えば長方形の
透明樹脂基板の４ｗＡに３いてこの接合を施すと、特に
３１程度以下に薄肉化した基板を用いたとき、シート材
との熱膨張率の不一致に起因して、−次光源の発熱や、
例えは自動車内における使用導設と乃至使用場所の雰囲
気温度等により波状等にこの透明樹脂基板か変形するこ
とかある。またこの・変形を防止するためには１例えば
−側２隅における接合を行えばよいか、この場合はシー
トは基板上に載置状とされるのて、基板とシートとの間
に微細な塵埃か入り、静電的にこれか基板に吸着される
という不良を招くことかあり、歩留の低下原因となる。Also, is ultrasonic bonding suitable for mass production?
Due to the spot-like bonding, for example, if this type of bonding is performed on a rectangular transparent resin substrate at 4wA, the thermal expansion coefficient mismatch with the sheet material may occur, especially when using a substrate thinned to about 31cm or less. Due to the heat generation of the -order light source,
For example, the transparent resin substrate may be deformed into a wavy shape due to the use and installation in an automobile or the ambient temperature at the place of use. In addition, in order to prevent this deformation, it would be better to join the sheet at, for example, the two corners on the negative side.In this case, since the sheet is placed on the substrate, there may be minute gaps between the substrate and the sheet. Dust may enter and be electrostatically attracted to the substrate, resulting in a defect, resulting in a decrease in yield.
本発明は、かかる問題点に鑑みてなされたものて、その
目的とする処は、量産に好適にして商品実用上の問題を
解消した、シートを接合してなるエツジライト用面光源
パネルを提供するにある。The present invention has been made in view of the above problems, and its purpose is to provide a surface light source panel for edge lights made by bonding sheets, which is suitable for mass production and eliminates problems in practical use of the product. It is in.
（課題を解決するための手段）
本発明は、透明樹脂基板とシート或いは透明樹脂基板を
包覆するシート重合部における接合を、スクリーン印刷
による硬化インク層又は硬化樹脂層或いはこれを両面に
有する接合基板又は接合枠基板を介在して精密且つ細幅
状に行う構成を含むもので、即ち本発明は、乱反射層を
形成した透明樹脂基板の対向端部を含む外周側複数端部
と、該基板を被覆する拡散シート又は反射シートとを、
スクリーン印刷による細帯状硬化インク層又は硬化樹脂
層を介在せしめて一体的に接合してなることを特徴とす
るエツジライト用面光源パネル（請求第１項）、乱反射
層を形成した透明樹脂基板を拡散シートと反射シートに
より包覆せしめるとともに該基板の対向端部を含む外周
側複数端部における重合部において拡散シートと反射シ
ートとをスクリーン印刷による細帯状硬化インク層又は
硬質樹脂層を介在せしめて一体的に接合してなることを
特徴とするエツジライト用面光源パネル（請求第２項）
、及び請求第１項又は請求第２項のスクリーン印刷によ
る細帯状硬化インク層又は硬化樹脂層に代えて、硬化イ
ンク層又は硬化樹脂層を具備した細帯状の接合基板又は
接合枠基板を介在せしめて一体的に接合してなることを
特徴とするエツジライト用面光源パネル（請求第３項）
に係り且つこれらをそれぞれ発明の要旨としてなる。(Means for Solving the Problems) The present invention provides bonding between a transparent resin substrate and a sheet, or a sheet overlapping portion that covers the transparent resin substrate, using a cured ink layer or a cured resin layer by screen printing, or a bond having the cured ink layer or cured resin layer on both surfaces. The present invention includes a configuration in which a substrate or a bonding frame substrate is interposed to form a precise and narrow width.In other words, the present invention includes a plurality of outer circumferential ends including opposing ends of a transparent resin substrate on which a diffused reflection layer is formed, and a A diffusion sheet or a reflective sheet covering the
A surface light source panel for Edgelight (Claim 1) characterized in that it is integrally bonded with a strip-shaped cured ink layer or cured resin layer interposed by screen printing, and a transparent resin substrate on which a diffused reflection layer is formed is diffused. The diffusion sheet and the reflection sheet are covered by the sheet and the reflection sheet, and the diffusion sheet and the reflection sheet are integrated by interposing a strip-shaped cured ink layer or hard resin layer by screen printing at the overlapping part at the plurality of edges on the outer peripheral side including the opposite ends of the substrate. A surface light source panel for Edgelight, characterized in that it is formed by joining
, and in place of the strip-shaped cured ink layer or cured resin layer formed by screen printing according to claim 1 or claim 2, a strip-shaped bonded substrate or bonded frame substrate provided with a cured ink layer or cured resin layer is interposed. A surface light source panel for edge light, characterized in that it is formed by integrally joining together (Claim 3)
and each of these constitutes the gist of the invention.
（作 用）
本発明にあっては、透明樹脂基板と拡散シート又は反射
シート、或いはこれらシート間かスクリーン印刷、接合
基板（又は接合枠基板）の幅に応じた細幅状に接合され
ているのて、精密にして所定の接合強度か得られる。(Function) In the present invention, the transparent resin substrate and the diffusion sheet or the reflective sheet, or between these sheets, are bonded in a narrow shape according to the width of the bonding substrate (or bonding frame substrate) by screen printing. After that, it is made precise and a predetermined joint strength can be obtained.
また接合は透明樹脂基板の対向端部を含む複数端部にお
いてなされているのて、−次光源の発熱や雰囲気温度等
を受けても、基板とシートとを接合したものにあっても
、これらの間の膨張負萄が分散均一化され、波状等の変
形を可及的に防止し、またシートとシートとを接合した
ものにあっては、基板と分離されていることによりこの
ような変形の可能性かそれ自体ない。In addition, since the bonding is done at multiple ends including the opposite ends of the transparent resin substrate, even if the substrate and sheet are bonded together, even if they are exposed to the heat generated by the negative light source or the ambient temperature, etc. The expansion stress between the sheets is distributed uniformly, preventing deformation such as waving as much as possible, and in the case of sheets bonded together, such deformation can be prevented by being separated from the substrate. There is no possibility of that.
（実 施 例）
以下実施例を示す図面に従って更に本発明を説明すれば
１請求第１項に対応する第１図及び第２図において、Ａ
は面光源パネル、Ｂは面光源装置において設けられる冷
陰極管とした一次光源、１は面光源パネルＡにおける透
明樹脂基板、４は拡散シート、５は反射シートを示す。(Embodiment) The present invention will be further explained below with reference to the drawings showing the embodiment. In Fig. 1 and Fig. 2 corresponding to claim 1,
1 is a surface light source panel, B is a primary light source which is a cold cathode tube provided in the surface light source device, 1 is a transparent resin substrate in the surface light source panel A, 4 is a diffusion sheet, and 5 is a reflection sheet.
本例における面光源パネルＡは１例えばラップトツブ型
コンピュータ、ワードプロセッサ等に内蔵し得るように
、特に薄肉のものとして構成してあり、従って、透明樹
脂基板１は、３１簡の肉厚のものを単一枚用い、これに
各７５ｐｍの拡散シート４及び反射シート５を用いたも
のとしである。The surface light source panel A in this example is constructed with a particularly thin wall so that it can be built into, for example, a laptop computer, a word processor, etc. Therefore, the transparent resin substrate 1 has a thickness of 31 cm. One sheet was used, and a diffusion sheet 4 and a reflection sheet 5 each having a thickness of 75 pm were used.
透明樹脂基板ｌは１例えば１３５Ｘ２００ｍｍの縦横寸
法を有するアクリル透明樹勢とし、その非照明面側をな
す一側表面（第１図においては下面に該る）には、数■
■輻の外周側端部における接合代２を歿した全面に、ｆ
＃、段階変化状パターンによる透光性高密度網点乱反射
面３をスクリーン印刷により印刷形成せしめである。The transparent resin substrate l is made of transparent acrylic resin with length and width dimensions of, for example, 135 x 200 mm, and one surface (corresponding to the lower surface in Fig. 1) that is the non-illumination side is provided with several squares.
■F
#: The light-transmitting high-density halftone dot diffuse reflection surface 3 with a step-change pattern is printed and formed by screen printing.
このとき基板１の各端面は鏡面仕上げを行い、−次光音
光の入射及び入射光の反射効率を高めである。At this time, each end face of the substrate 1 is mirror-finished to increase the incidence of the -order photoacoustic light and the reflection efficiency of the incident light.
なお、網点乱反射面３は、−次光源１７側から離隔方向
に網点面積比を２０〜１００％の範囲て平行無段階状に
変化させ、更に反射光による輝度の不均一性を防止する
ため、中央より離隔端部寄りの中間位置においてこの面
積比か最大になるようにしである。In addition, the halftone dot diffused reflection surface 3 changes the halftone dot area ratio in a parallel stepless manner in a range of 20 to 100% in a direction away from the -order light source 17 side, and further prevents non-uniformity in brightness due to reflected light. Therefore, this area ratio is maximized at an intermediate position closer to the remote end than the center.
一方、本例における拡散シート４及び反射シート５は、
いずれも上記７５ｐｍ厚の、一般に例えばコンピュータ
読取り用カードに用いられる腰強フィルム状の乳白色不
透明ポリエステルシート（帝人株式会社「ユボ」）でコ
ーティング処理したものを使用して、透明樹脂基板ｌの
照明面側で乱反射光の拡散、背面側て反射を行わしめる
ようにしである。On the other hand, the diffusion sheet 4 and the reflection sheet 5 in this example are
In both cases, a transparent resin substrate l was coated with the above-mentioned 75 pm thick milky white opaque polyester sheet (Teijin Ltd. "Yubo"), which is generally used for example in computer readable cards. The diffused reflected light is diffused on the front side and reflected on the back side.
透明樹脂基板ｌに対して、拡散シート４及び反射シート
５は、外周側表面の、上記四周接合代２・・・において
、スクリーン印刷による硬化インク層６によって、細帯
状にして且つ一連になるよう一体的に接合せしめである
。With respect to the transparent resin substrate l, the diffusion sheet 4 and the reflection sheet 5 are formed into a narrow band shape and continuous by a cured ink layer 6 by screen printing at the above-mentioned four circumferential bonding margins 2... on the outer circumference side surface. It is integrally joined.
本例のこの接合には、熱可塑性樹脂をインクビヒクルに
添加せしめである熱乾燥用の印刷インクを用いて、第１
図に示すように拡散シート４及び反射シート５側の四周
に、それぞれ１乃至２■■の細帯状のスクリーン印刷を
施し、このスクリーン印刷後に、透明樹脂基板ｌとこれ
らシート４．５とを定位置にａ層し、然る後加熱プレス
を施すことによってこの接合を行う方法工程に依って生
産したものとしである。This bonding in this example uses a heat drying printing ink in which a thermoplastic resin is added to the ink vehicle and the first
As shown in the figure, 1 to 2 strips of screen printing are applied to the four circumferences of the diffusion sheet 4 and reflection sheet 5, respectively, and after this screen printing, the transparent resin substrate 1 and these sheets 4.5 are fixed. It is assumed that the product is produced using a method step in which this bonding is performed by applying a layer A at the position and then applying hot pressing.
一方、第３図及び第４図は、請求第２項に対応した実施
例であり、本例における面光源パネルＢは、上記例と同
一の透明樹脂基板ｌ及び拡散シート４を用いたか、一体
重に接合した拡散シート４及び反射シート７によってこ
の透明樹脂基板ｌを包覆せしめて、これらシート４．７
と基板１との間の接合を回避した例である。On the other hand, FIGS. 3 and 4 are examples corresponding to claim 2, and the surface light source panel B in this example uses the same transparent resin substrate l and diffusion sheet 4 as in the above example, or The transparent resin substrate l is covered with the diffusion sheet 4 and the reflection sheet 7 which are attached to the body weight, and these sheets 4.7
This is an example in which bonding between the substrate 1 and the substrate 1 is avoided.
本例ては、同しく７５ｇｍ厚のポリエステルシートであ
る反射シート７の端部な一次光枦側を除いて逆り字状に
立上け、底面８との間に透明樹脂基板ｌを抱持せしめ、
透明樹脂基板１の照明面側表面である外周の非光源側３
端部上において面内方向に折曲した折返し条９・・・を
拡散シート４との重合部として、これら拡散シート４と
反射シート７とを、同しくスクリーン印刷による硬化イ
ンク層６て細帯状一連に接合したものとしである。In this example, the reflective sheet 7, which is also a polyester sheet with a thickness of 75 gm, is raised up in an inverted shape except for the primary light beam side at the end, and the transparent resin substrate l is held between it and the bottom surface 8. Seshime,
Non-light source side 3 on the outer periphery, which is the illumination surface side surface of the transparent resin substrate 1
The folded strips 9 bent in the in-plane direction on the end portions are used as overlapping portions with the diffusion sheet 4, and the diffusion sheet 4 and the reflection sheet 7 are formed into thin strips with a cured ink layer 6 by screen printing. It is assumed that they are joined in series.
このとき、その接合は、拡散シート４の裏面側に上記と
同様のスクリーン印刷を施し、或いは、折曲前又は折曲
後の反射シート７偏にこのスクリーン印刷を施し、然る
後に受台を挿入して加熱プレスを施すことにより１側聞
口の袋状にしてあり、この袋状とした上て透明樹脂基板
ｌを挿入することによって上記包覆を行う生産方法工程
を経るものとしである。At this time, the joining is done by applying screen printing similar to the above on the back side of the diffusion sheet 4, or applying this screen printing to the reflective sheet 7 before or after bending, and then attaching the pedestal. By inserting it and applying heat pressing, it is made into a bag shape with an opening on one side, and after the bag shape is formed, the transparent resin substrate 1 is inserted and the above-mentioned wrapping is performed. .
第５図及び第６図は請求第３項に対応した実施例て、本
例における面光源パネルＣは、接合基板１０．１１を介
在して拡散シート４及び反射シート５を透明樹脂基板ｌ
に一体的に接合し、また断面コ字状の接合枠基板１２・
・・を介在して拡散シート４と反射シート５とを併せて
一体的に接合した例である。5 and 6 show an embodiment corresponding to claim 3. A surface light source panel C in this embodiment has a diffusion sheet 4 and a reflection sheet 5 connected to a transparent resin substrate with a bonding substrate 10.11 interposed therebetween.
The joining frame substrate 12 is integrally joined to the board and has a U-shaped cross section.
This is an example in which the diffusion sheet 4 and the reflection sheet 5 are integrally joined together with ... interposed therebetween.
即ち、本例の接合基板１０．１１及び接合枠基板１２は
、０．３■ｌの肉厚による。細幅にして一連の薄肉樹脂
板を用いてなり、接合基板１０．１１の表裏両面、及び
接合枠基板１２・・・における透明樹脂基板ｌの面内方
向に向う上下折曲条１３，１３の各シート４．５との重
合部側には、それぞれ硬化樹脂層１４を具備しており、
この硬化樹脂層１４により上記透明樹脂基板１、拡散シ
ート４及び反射シート５をそれぞれ接合せしめたものと
しである。That is, the bonding substrates 10 and 11 and the bonding frame substrate 12 of this example have a wall thickness of 0.3 μl. It is made of a series of thin resin plates with a narrow width, and has upper and lower bent strips 13, 13 on both the front and back surfaces of the bonding substrate 10, 11, and in the in-plane direction of the transparent resin substrate l in the bonding frame substrate 12... A cured resin layer 14 is provided on the side where each sheet 4.5 overlaps,
The transparent resin substrate 1, the diffusion sheet 4, and the reflection sheet 5 are bonded to each other by this cured resin layer 14.
なお、本例における透明樹脂基板ｌ、拡散シート４、反
射シート５は第１図のものと変らないか、硬化樹脂層１
４は、熱可塑性とした樹脂を塗布するものとしである。Note that the transparent resin substrate 1, diffusion sheet 4, and reflection sheet 5 in this example are the same as those in FIG.
4 is a case in which a thermoplastic resin is applied.
この面光源パネルＣの形成は、例えば第６図に示す如く
、表面に数ケ所のエア吸引孔１６・・・を開設した段差
立上り状の平面受台１５を用い、この受台１５に透明樹
脂基板ｌを、外周側各端部突出状に載ｒして、エア吸引
によって固定した後、各突出端部に受台１５端縁を終端
とする如くに、それぞれ上記樹脂を塗付した接合枠基板
１２・・・を押圧嵌合させる一方、−次光源側端部にあ
っては両面に同しく樹脂を塗付した接合基板１０を載ｌ
せしめた後１反射シート５を陸下積層状に重ねて熱ロー
ラーによりプレスを行い、その後反射シート５を付した
状態で透明樹脂基板１を反転し２更に一次光塚１７側端
部に同様な接合基板１１を載置した上、拡散シート４を
配設し再度熱ローラ−プレスを行う生産方法工程を採る
ものとしている。To form this surface light source panel C, for example, as shown in FIG. After placing the substrate l with each end protruding on the outer peripheral side and fixing it by air suction, the above-mentioned resin is applied to each protruding end so that the end edge of the pedestal 15 is the end. While the substrates 12 are press-fitted, a bonding substrate 10 coated with resin on both surfaces is placed at the end on the -order light source side.
After that, 1. the reflective sheet 5 is layered in a layered manner and pressed with a hot roller, then the transparent resin substrate 1 is turned over with the reflective sheet 5 attached, and 2. A production method step is adopted in which the bonded substrate 11 is placed, the diffusion sheet 4 is disposed, and hot roller pressing is performed again.
図示した例は以上のとおりとしたか、本発明にあって、
一体重な接合には硬化手段を施すことかてきる印刷イン
ク及び樹脂を適宜用いることかてき、加熱によるときは
加熱硬化剤を有するインクや熱可塑性乃至熱硬化製樹脂
を、必要とする接合強度との関係て適宜選択すればよく
、紫外線、電子線照射等を硬化手段とするときもこれら
に準して選択する。The illustrated example is as described above, or in the present invention,
For integral bonding, printing ink and resin that can be cured may be used as appropriate, and when using heat, ink with a heat curing agent or thermoplastic or thermosetting resin may be used to achieve the required bonding strength. It may be selected as appropriate in relation to the curing means, and when using ultraviolet rays, electron beam irradiation, etc. as a curing means, selections should be made in accordance with these.
これらは、接合に際してシートや透明樹ｌＩ！基板に設
ける場合にはスクリーン印刷によることか必要であるか
、接合基板、接合枠基板に設ける場合には、スクリーン
印刷とともに塗付することかてきる。但し、これら基板
幅に比して接合をより細帯に行うときはスクリーン印刷
によることか簡便て好ましい。These can be used as sheets or transparent wood when joining. If it is provided on a substrate, it may be necessary to use screen printing, or if it is provided on a bonded substrate or a bonded frame substrate, it may be applied along with screen printing. However, when bonding is performed in a strip that is narrower than the width of the substrate, it is preferable to use screen printing because it is simple.
なお、硬化インク又は硬化樹脂は、１１箇乃至２曹■程
度の幅とすれば一体的な接合を行う上て一般に支障かな
く、また、このような細幅てあれば、端部において乱反
射光の吸引等の損失も極〈少いので、これらか透明のも
の、白色のものである以外に所定の顔料着色かなされた
ものてあってもよい。In addition, if the cured ink or cured resin has a width of about 11 mm to 2 mm, there is generally no problem in performing integral bonding, and if the cured ink or resin has such a narrow width, it will reduce the amount of diffusely reflected light at the edges. Since losses due to suction and the like are extremely small, these materials may be transparent or white, or may be colored with a predetermined pigment.
一体的な接合は、乱反射層による照明を妨げないよう透
明樹脂基板の外周側端部に８いて行うか、このとき、一
端のみて行うことは前記従来例におけると同様塵埃を吸
着する可能性か残るので、対向する２つの端部において
、或いは３乃至全外周端部において接合して可及的に塵
埃吸着の防止を行うのか良い。Integral bonding should be done by attaching it to the outer edge of the transparent resin substrate so as not to interfere with the illumination provided by the diffused reflection layer.In this case, if it is done only at one end, there is a possibility that dust will be attracted as in the conventional example. Therefore, it is better to prevent dust adsorption as much as possible by joining at two opposing ends or at three or all outer peripheral ends.
このとき端部は、必ずしも透明樹脂基板の一側乃至両側
表面であることは必要てはなく、透明樹脂基板の一次光
源側を除けば端面部分或いはこれに及ぶものとしてもよ
い。At this time, the end portion does not necessarily have to be one side or both surfaces of the transparent resin substrate, and may be an end face portion of the transparent resin substrate or may extend thereto, except for the primary light source side of the transparent resin substrate.
透明樹脂基板はアクリル透明樹脂の他、ポリカーボネー
ト透明樹脂によることも可能であるか、拡散シート又は
反射シートはてきれば、透明樹脂基板と同質樹脂製のも
のとするのかよく、こうすることにより一次光源の発熱
や雰囲気温度の影響等かあっても熱膨張率を一致てきそ
の影響をより解消できる。なおアクリル透明樹脂基板に
ポリカーボネート製のシートを用いることも好ましい結
果か得られる。Is it possible for the transparent resin substrate to be made of polycarbonate transparent resin in addition to acrylic transparent resin? If possible, the diffusion sheet or reflective sheet should be made of the same resin as the transparent resin substrate. Even if there is an effect of heat generation from the light source or ambient temperature, the effects can be further eliminated by matching the coefficients of thermal expansion. Note that preferable results can also be obtained by using a polycarbonate sheet as the acrylic transparent resin substrate.
シートは拡散用のもの、反射用のものて異材質のもの或
いは同質にしても必要な加工を施したもの等とすること
はもとより可能てあり、拡散、反射の目的に応してこれ
を設定すれば足りる。It is of course possible to use sheets for diffusion and reflection, which are made of different materials, or even if they are made of the same material but have undergone the necessary processing, and these are set depending on the purpose of diffusion or reflection. It's enough.
接合基板、接合枠基板を用いるについては、一般に薄肉
化したものか透明樹脂基板とシートとの間の空隙の発生
を確実に防止し得ること、面光源パネル全体の薄肉化に
有益であることから都合かよいか、更に、０．３１以下
のものとしておけは加熱を硬化手段とするとき、アクリ
ル系樹脂製のものて２２０℃〜２３０℃程度、塩化ヒニ
ール系樹脂製て８０℃程度の温度を加えることによって
接合か比較的容易になし得る利点もある。Regarding the use of bonded substrates and bonded frame substrates, they are generally thin-walled because they can reliably prevent the formation of gaps between the transparent resin substrate and the sheet, and are useful for reducing the thickness of the entire surface light source panel. For convenience, if the material is 0.31 or less, when heating is used as a curing method, a temperature of about 220°C to 230°C is applied for those made of acrylic resin, and about 80°C for those made of chlorinated resin. There are also advantages in that joining can be achieved relatively easily.
なお、これらはなるべく白色系のものとするのかよく、
その余の顔料着色によるものは、幅との関係もあるか、
一般には乱反射光の損失を招くようになることから避け
ることか望ましい。Please note that these should be white in color as much as possible.
Is there a relationship between the rest of the pigment coloring and the width?
In general, it is desirable to avoid this because it causes loss of diffusely reflected light.
スクリーン印刷による場合、接合基板又は接合枠基板に
よる場合とも、なるべく一体重な接合は一連のものとす
るのかよいか、特に透明樹脂基板とシート間に熱膨張率
の差かないか、少い場合には、必要な接合強度を確保て
きる以し、一部断続状のものとしたりすること等も支障
を生しることなく本発明を実施てきる。Whether using screen printing, bonded substrates, or bonded frame substrates, it is best to connect as a single unit as possible, especially if there is no or small difference in thermal expansion coefficient between the transparent resin substrate and the sheet. Since the required bonding strength can be secured, the present invention can be implemented without any problem even if the bonding structure is partially interrupted.
上記例はいずれも早−板の透明Ｓ＋脂板な用いたか、複
数のものをａ層する場合は、拡散シートをこれらの間に
上記接合により又は挟着状にして介設する如くにするこ
とも可能であり、更に透明樹脂板を厚肉にすること、乱
反射面のパターンを適宜変更すること等を含めて、本発
明の実施に際しては、乱反射面、透明樹脂基板拡散シー
ト、反射シート、接合基板、接合枠基板の具体的形状、
構造、材質、寸法、これらの関係及びインク、樹脂の硬
化手段、組立て方法、面光ｌＩＡ装置としての用途等は
、各発明の要旨に反しない限り様々に変更てきる。In all of the above examples, the transparent S plate and the oil plate were used. If a plurality of layers are used in the A layer, a diffusion sheet may be interposed between them by the above-mentioned bonding or sandwiching. In addition, when implementing the present invention, including making the transparent resin plate thicker and changing the pattern of the diffused reflection surface as appropriate, it is possible to The specific shape of the board and bonding frame board,
The structure, material, dimensions, relationship thereof, ink, resin curing means, assembly method, use as a surface light IIA device, etc. may be variously changed as long as they do not contradict the gist of each invention.
本発明は以上のとおりに構成したので、一体重な接合幅
を細帯状のものとし、必要な接合強度を得て、精密な接
合を行うことかてき、また、人手作業としてこの接合を
行うにおいてもスクリーン印刷て接合位置か足められ或
いは接合基板、接合枠基板か接合位置の位置出し基準と
なるため煩雑さを大幅に解消する上、一方て自動化する
ことも可能てあり、いずれにしても歩留りを向上して量
産に適するものとなる。Since the present invention is configured as described above, it is possible to make the joint width into a narrow band shape, obtain the necessary joint strength, and perform precise joining. The bonding position can be determined by screen printing, or it can be used as a reference for locating the bonding position of the bonding substrate or bonding frame substrate, which greatly reduces complexity, and it is also possible to automate the process. It improves yield and becomes suitable for mass production.
また、透明樹脂基板とシートの接合か上記複数端部て行
われるか、透明樹脂基板はシートに包覆状とされるのて
、−次光源か発熱し、熱膨張率の差のある材質を用いた
場合ても、透明樹脂基板か部分的に負荷を受けて異常変
形したりすることを可及的に防止てき、特に液晶バック
ライト等、他の機器に内蔵使用しても長期に亘る安定し
た照明を一実現する上で有効なエツジライト用面光源パ
ネルを提供することかてきる。In addition, the transparent resin substrate and the sheet may be joined at the plurality of ends, or the transparent resin substrate may be wrapped around the sheet, and the material that generates heat from the light source and has a different coefficient of thermal expansion may be used. Even when used, the transparent resin substrate is prevented from becoming abnormally deformed due to partial loads, and it is stable for a long period of time even when used internally in other devices such as LCD backlights. Therefore, it is possible to provide a surface light source panel for edge lights that is effective in realizing high-quality lighting.
図面は実施例を示すものて、第１図及び第２図は請求第
１項の実施例における面光源パネルのそれぞれ分解斜視
図及び一部拡大断面図、第３図及び第４図は請求第２項
の実施例におけるそれぞれ同じく分解斜視図及び一部拡
大断面図、第５図及び第６図は請求ｔＪＩＪ３項の実施
例におけるそれぞれ分解斜視図及び生産装置の例を示す
縦断面図である。
Ａ、Ｂ、Ｃ３−・・乱反射面
・・・面光源パネル ４・・・拡散シート１・・・
透明樹脂基板
７・・・反射シート
６・・・硬化インク層
１７ ・・・
１次光源
４・・・硬化樹脂層The drawings show an embodiment, and FIGS. 1 and 2 are exploded perspective views and partially enlarged sectional views of a surface light source panel according to the embodiment of claim 1, and FIGS. FIGS. 5 and 6 are respectively an exploded perspective view and a partially enlarged sectional view of the embodiment of claim 2, and FIGS. 5 and 6 are respectively an exploded perspective view and a longitudinal sectional view showing an example of the production apparatus in the embodiment of claim tJIJ, clause 3. A, B, C3 - Diffuse reflection surface... Surface light source panel 4... Diffusion sheet 1...
Transparent resin substrate 7... Reflective sheet 6... Cured ink layer 17... Primary light source 4... Cured resin layer
Claims (3)
む外周側複数端部と、該基板を被覆する拡散シート又は
反射シートとを、スクリーン印刷による細帯状硬化イン
ク層又は硬化樹脂層を介在せしめて一体的に接合してな
ることを特徴とするエッジライト用面光源パネ ル。(1) A thin strip-shaped cured ink layer or cured resin layer is formed by screen printing a plurality of outer circumferential ends including opposite ends of a transparent resin substrate on which a diffuse reflection layer is formed, and a diffusion sheet or a reflection sheet covering the substrate. A surface light source panel for an edge light, characterized in that it is integrally joined with an intervening part.
反射シートにより包覆せしめるとともに該基板の対向端
部を含む外周側複数端部における重合部において拡散シ
ートと反射シートとをスクリーン印刷による細帯状硬化
インク層又は硬化樹脂層を介在せしめて一体的に接合し
てなることを特徴とするエッジライト用面光源パネル。(2) The transparent resin substrate on which the diffused reflection layer is formed is covered with a diffusion sheet and a reflection sheet, and the diffusion sheet and the reflection sheet are printed in thin strips by screen printing at the overlapping parts of the plurality of edges on the outer peripheral side including the opposite ends of the substrate. A surface light source panel for an edge light, characterized in that the panel is integrally joined with a band-shaped cured ink layer or cured resin layer interposed therebetween.
る細帯状硬化インク層又は硬化樹脂層に代えて、硬化イ
ンク層又は硬化樹脂層を具備した細帯状の接合基板又は
接合枠基板を介在せしめて一体的に接合してなることを
特徴とするエッジライト用面光源パネル。(3) Instead of the strip-shaped cured ink layer or cured resin layer formed by screen printing according to claim 1 or claim 2, a strip-shaped bonded substrate or bonded frame substrate provided with a cured ink layer or cured resin layer is interposed. A surface light source panel for an edge light, characterized in that it is at least integrally joined.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20448090A JP3210322B2 (en) | 1990-07-31 | 1990-07-31 | Surface light source panel for edge light |
| TW080105026A TW197499B (en) | 1990-07-03 | 1991-06-28 | |
| GB9113984A GB2247310B (en) | 1990-07-03 | 1991-06-28 | Edge light panel device |
| DE4121898A DE4121898A1 (en) | 1990-07-03 | 1991-07-02 | EDGE LIGHTING FIELD DEVICE |
| KR1019910011248A KR950010414B1 (en) | 1990-07-03 | 1991-07-03 | Edge-light panel apparatus |
| US07/725,661 US5207493A (en) | 1990-07-03 | 1991-07-03 | Edge light panel device |
| FR9108292A FR2664411A1 (en) | 1990-07-03 | 1991-07-03 | Luminous panel lit through the edge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20448090A JP3210322B2 (en) | 1990-07-31 | 1990-07-31 | Surface light source panel for edge light |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0488392A true JPH0488392A (en) | 1992-03-23 |
| JP3210322B2 JP3210322B2 (en) | 2001-09-17 |
Family
ID=16491226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20448090A Expired - Lifetime JP3210322B2 (en) | 1990-07-03 | 1990-07-31 | Surface light source panel for edge light |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3210322B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002190208A (en) * | 2000-12-20 | 2002-07-05 | Minebea Co Ltd | Surface illumination apparatus |
| JP2009151320A (en) * | 2009-01-22 | 2009-07-09 | Sony Corp | Optical element package body, back light and liquid crystal display |
| JP2010044221A (en) * | 2008-08-12 | 2010-02-25 | Sony Corp | Optical package, lighting system, and display device |
| JP2011142087A (en) * | 2010-01-07 | 2011-07-21 | Lg Innotek Co Ltd | Backlight unit |
| JP2011526050A (en) * | 2008-05-28 | 2011-09-29 | クォルコム・メムズ・テクノロジーズ・インコーポレーテッド | Optical waveguide panel having turning microstructure, method for manufacturing the same, and display device |
| US8979349B2 (en) | 2009-05-29 | 2015-03-17 | Qualcomm Mems Technologies, Inc. | Illumination devices and methods of fabrication thereof |
-
1990
- 1990-07-31 JP JP20448090A patent/JP3210322B2/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002190208A (en) * | 2000-12-20 | 2002-07-05 | Minebea Co Ltd | Surface illumination apparatus |
| JP2011526050A (en) * | 2008-05-28 | 2011-09-29 | クォルコム・メムズ・テクノロジーズ・インコーポレーテッド | Optical waveguide panel having turning microstructure, method for manufacturing the same, and display device |
| JP2010044221A (en) * | 2008-08-12 | 2010-02-25 | Sony Corp | Optical package, lighting system, and display device |
| JP2009151320A (en) * | 2009-01-22 | 2009-07-09 | Sony Corp | Optical element package body, back light and liquid crystal display |
| US8979349B2 (en) | 2009-05-29 | 2015-03-17 | Qualcomm Mems Technologies, Inc. | Illumination devices and methods of fabrication thereof |
| US9121979B2 (en) | 2009-05-29 | 2015-09-01 | Qualcomm Mems Technologies, Inc. | Illumination devices and methods of fabrication thereof |
| JP2011142087A (en) * | 2010-01-07 | 2011-07-21 | Lg Innotek Co Ltd | Backlight unit |
| US8540411B2 (en) | 2010-01-07 | 2013-09-24 | Lg Innotek Co., Ltd. | Backlight unit and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3210322B2 (en) | 2001-09-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR0152279B1 (en) | Edge light panel and its production | |
| KR950010414B1 (en) | Edge-light panel apparatus | |
| US5729310A (en) | Lighting apparatus | |
| TWI451168B (en) | Backlight structure and manufacturing method thereof | |
| US20110102709A1 (en) | Direct type backlight module and application thereof | |
| TW201217862A (en) | Flat panel display structure and manufacturing method thereof | |
| TW200405094A (en) | Backlight assembly and liquid crystal display device using the same | |
| JP2001272509A (en) | Light diffusion material and liquid crystal display using the same | |
| JP3800402B2 (en) | Liquid crystal display | |
| JP2974400B2 (en) | Surface emitting device and method of manufacturing the same | |
| CN209928187U (en) | Backlight module and display panel | |
| KR102124022B1 (en) | A monolithic optical sheet and liquid crystal display device including the same | |
| JPH0488392A (en) | Plane light source panel for edge light | |
| JPH04104629U (en) | light source device | |
| JP3072752B2 (en) | Manufacturing method of surface emitting device | |
| JP4271928B2 (en) | Light reflecting material and light source device using the same | |
| KR100620782B1 (en) | Film body for backlight and method for producing film body for backlight | |
| US20020126470A1 (en) | Planar light-emitting display panel | |
| CN114859594A (en) | Backlight module and display device | |
| JPH03191329A (en) | Surface liquid crystal display device | |
| CN109477939A (en) | Maqting type optical sheet module | |
| TWI309737B (en) | ||
| JP2777544B2 (en) | Surface emitting device | |
| JPH06110057A (en) | Liquid crystal display device | |
| JPH06118510A (en) | Transmission type screen |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20070713 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100713 Year of fee payment: 9 |