JPH06167618A - Light guide plate device - Google Patents
Light guide plate deviceInfo
- Publication number
- JPH06167618A JPH06167618A JP4320399A JP32039992A JPH06167618A JP H06167618 A JPH06167618 A JP H06167618A JP 4320399 A JP4320399 A JP 4320399A JP 32039992 A JP32039992 A JP 32039992A JP H06167618 A JPH06167618 A JP H06167618A
- Authority
- JP
- Japan
- Prior art keywords
- guide plate
- light guide
- light
- light source
- lamp holder
- 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
Landscapes
- Liquid Crystal (AREA)
- Securing Globes, Refractors, Reflectors Or The Like (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
- Planar Illumination Modules (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、液晶用バックライト、
広告などの看板用バックライト、照明器具などに使用さ
れる導光板装置に関する。The present invention relates to a liquid crystal backlight,
The present invention relates to a light guide plate device used for a backlight for signs such as advertisements and a lighting device.
【０００２】[0002]
【従来の技術】導光板装置には、図５に示すように、一
面が発光面１とされ他面が反射面２とされた導光板３を
備え、導光板３の端面４外方に光源用ランプ５が設けら
れ、光源用ランプ５の光を導光板３の端面４から入射
し、導光板３に入射した光を反射面２で反射させて、発
光面１側を発光させるようにしたものがあるが、従来の
この種の導光板装置は、同図に示す如く導光板３とは別
体に光源用ランプ５を保持するランプホルダ６を設け、
該ランプホルダ６をクリップ等の固定手段によって導光
板に着脱自在に固定していた（例えば特開平４─１０２
８８８）。2. Description of the Related Art A light guide plate device is provided with a light guide plate 3 having one surface as a light emitting surface 1 and the other surface as a reflecting surface 2, as shown in FIG. 5, and a light source is provided outside an end surface 4 of the light guide plate 3. Lamp 5 is provided, the light of the light source lamp 5 is incident from the end surface 4 of the light guide plate 3, the light incident on the light guide plate 3 is reflected by the reflection surface 2, and the light emitting surface 1 side is made to emit light. However, in the conventional light guide plate device of this type, a lamp holder 6 for holding the light source lamp 5 is provided separately from the light guide plate 3 as shown in FIG.
The lamp holder 6 is detachably fixed to the light guide plate by a fixing means such as a clip (for example, Japanese Patent Laid-Open No. 4-102).
888).
【０００３】[0003]
【発明が解決しようとする課題】しかし、従来では、導
光板装置を製造する場合、導光板３とは別体にランプホ
ルダ６を形成した後、ランプホルダ６を導光板３に対し
て固定手段により取り付ける必要があり、導光板装置の
製造が非常に面倒であった。また、導光板装置の特性と
して、光源用ランプ５のセンターと導光板３の厚みの中
心線を合わせ、さらに光源用ランプ５の管壁と導光板３
の端面４との距離が０．５〜１．５mmのとき発光面１の
輝度が最も高くなるが、導光板３に対するランプホルダ
６の取り付け位置にばらつきを生じ、導光板３に対して
光源用ランプ５を最適な位置に組み込めない恐れがあっ
た。However, conventionally, when manufacturing a light guide plate device, after the lamp holder 6 is formed separately from the light guide plate 3, the lamp holder 6 is fixed to the light guide plate 3. Therefore, the manufacturing of the light guide plate device was very troublesome. As a characteristic of the light guide plate device, the center of the light source lamp 5 is aligned with the center line of the thickness of the light guide plate 3, and the tube wall of the light source lamp 5 and the light guide plate 3 are further aligned.
The brightness of the light emitting surface 1 is highest when the distance from the end face 4 of the lamp is 0.5 to 1.5 mm, but the mounting position of the lamp holder 6 with respect to the light guide plate 3 varies, and the light guide plate 3 is used as a light source. There was a risk that the lamp 5 could not be installed in the optimum position.
【０００４】本発明は、上記問題点に鑑み、容易に製造
できて、導光板に対して光源用ランプを最適な位置に簡
単に組み込めるようにしたものである。In view of the above-mentioned problems, the present invention can be easily manufactured, and the light source lamp can be easily assembled at an optimum position with respect to the light guide plate.
【０００５】[0005]
【課題を解決するための手段】この技術的課題を解決す
るための本発明の技術的手段は、一面が発光面１２とさ
れ他面が反射面１３とされた導光板１１を備え、導光板
１１の端面２５外方に光源用ランプ２４が設けられ、光
源用ランプ２４の光を導光板１１の端面２５から入射
し、導光板１１に入射した光を反射面１３で反射させ
て、発光面１２側を発光させるようにした導光板装置に
おいて、導光板１１に、前記光源用ランプ２４の両端部
を保持するランプホルダ１８が一体に設けられ、該ラン
プホルダ１８は導光板１１と共に一体成形されている点
にある。The technical means of the present invention for solving this technical problem comprises a light guide plate 11 having one surface as a light emitting surface 12 and the other surface as a reflecting surface 13. A light source lamp 24 is provided outside the end surface 25 of the light source 11, the light of the light source lamp 24 is incident from the end surface 25 of the light guide plate 11, and the light incident on the light guide plate 11 is reflected by the reflection surface 13 to emit light. In the light guide plate device configured to emit light on the 12th side, a lamp holder 18 for holding both ends of the light source lamp 24 is integrally provided on the light guide plate 11, and the lamp holder 18 is integrally formed with the light guide plate 11. There is a point.
【０００６】[0006]
【作用】導光板装置を製造する場合、導光板３にランプ
ホルダ６を一体成形した後、ランプホルダ６に光源用ラ
ンプ２４を装着すればよく、導光板装置の製造乃至組立
が非常に簡単であり、また、導光板３に対するランプホ
ルダ６の位置にばらつきが生じなくなる。When the light guide plate device is manufactured, the lamp holder 6 may be integrally formed on the light guide plate 3 and then the light source lamp 24 may be mounted on the lamp holder 6, so that the manufacture or assembly of the light guide plate device is very simple. There is also no variation in the position of the lamp holder 6 with respect to the light guide plate 3.
【０００７】[0007]
【実施例】以下、本発明を図示の実施例に従って説明す
ると、図１乃至図４において、１１はアクリル樹脂によ
り構成した長方板形状の導光板で、一面が発光面１２と
され他面が反射面１３とされている。導光板１１の発光
面１２に、例えばポリカーボネイトフィルムにより構成
した光拡散板１４が設けられている。導光板１１の反射
面１３に、例えばポリエチレンフィルムの反射板１５が
設けられ、また導光板１１の反射面１３にシリカ、酸化
チタン等の拡散剤を混入したインクをドット印刷して成
る乱反射部１６が設けられている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the illustrated embodiments. In FIGS. 1 to 4, reference numeral 11 denotes a rectangular plate-shaped light guide plate made of acrylic resin, one surface of which serves as a light emitting surface 12 and the other surface thereof. It is the reflection surface 13. A light diffusing plate 14 made of, for example, a polycarbonate film is provided on the light emitting surface 12 of the light guide plate 11. The reflection surface 13 of the light guide plate 11 is provided with a reflection plate 15 of, for example, a polyethylene film, and the reflection surface 16 of the light guide plate 11 is irregularly reflected by an ink containing a diffusing agent such as silica or titanium oxide. Is provided.
【０００８】１８はランプホルダで、導光板１１の４つ
の角部に一体に設けられている。このランプホルダ１８
は導光板１１と共に一体成形したもので、各ランプホル
ダ１８には嵌合凹部１９と挿通凹部２０とがＬ字状に没
設形成されている。前期光拡散板１４には取り付け板部
２１が一体に設けられ、取り付け板部２１は各ランプホ
ルダ１８に対応しており、取り付け板部２１を各ランプ
ホルダ１８に溶着２２することによって光拡散板１４は
導光板１１の発光面１２上に貼り付けられている。ま
た、図示省略しているが、前期反射板１５には光拡散板
１４と同様に各ランプホルダ１８に対応した取り付け板
部が一体に設けられ、この取り付け板部を各ランプホル
ダ１８に溶着することによって反射板１５は導光板１１
の反射面１３上に貼り付けられている。この結果、光拡
散板１４及び反射板１５の溶着部分が導光板１１の有効
発光エリヤから外れるため、光拡散板１４及び反射板１
５の貼り付けによる異常発光等の悪影響を導光板１１の
有効発光エリヤに与えなくて済む。Reference numeral 18 denotes a lamp holder which is integrally provided at four corners of the light guide plate 11. This lamp holder 18
Is integrally formed with the light guide plate 11, and a fitting recess 19 and an insertion recess 20 are formed in an L-shaped recess in each lamp holder 18. A mounting plate portion 21 is integrally provided on the light diffusing plate 14, and the mounting plate portion 21 corresponds to each lamp holder 18. By welding 22 the mounting plate portion 21 to each lamp holder 18, the light diffusing plate is attached. 14 is attached to the light emitting surface 12 of the light guide plate 11. Although not shown in the figure, the reflector plate 15 is integrally provided with a mounting plate portion corresponding to each lamp holder 18 like the light diffusion plate 14, and the mounting plate portion is welded to each lamp holder 18. As a result, the reflector 15 becomes the light guide plate 11
Is affixed on the reflective surface 13. As a result, the welded portions of the light diffusion plate 14 and the reflection plate 15 are separated from the effective light emitting area of the light guide plate 11, so that the light diffusion plate 14 and the reflection plate 1 are formed.
The effective light emission area of the light guide plate 11 does not have to be adversely affected by the sticking of No. 5 or the like.
【０００９】なお、光拡散板１４及び反射板１５の取り
付け板部を、溶着に代えて両面接着テープによって導光
板１１に貼り付けるようにしてもよい。２４は一対の光
源用ランプで、導光板１１の両端面２５外方に配置さ
れ、光源用ランプ２４の光が導光板１１の端面２５から
導光板１１内に入射するようになっている。各光源用ラ
ンプ２４の両端部は対応するランプホルダ１８の嵌合凹
部に嵌合保持されている。各光源用ランプ２４の両端に
突出された端子２６及び該端子２６に接続されたケーブ
ル２７はランプホルダ１８の挿通凹部２０に挿通され、
ケーブル２７は挿通凹部２０から外部に導出されてい
る。嵌合凹部１９及び挿通凹部２０にはシリコン系の接
着剤２８が充填され、この接着剤２８によって、光源用
ランプ２４の両端部、端子２６及びケーブル２７がラン
プホルダ１８に固着されると共に、端子２６及びケーブ
ル２７が絶縁されている。The mounting plate portions of the light diffusion plate 14 and the reflection plate 15 may be attached to the light guide plate 11 by double-sided adhesive tape instead of welding. A pair of light source lamps 24 are arranged outside both end surfaces 25 of the light guide plate 11, and the light of the light source lamp 24 enters the light guide plate 11 from the end surface 25 of the light guide plate 11. Both ends of each light source lamp 24 are fitted and held in fitting recesses of the corresponding lamp holder 18. The terminals 26 protruding from both ends of each light source lamp 24 and the cables 27 connected to the terminals 26 are inserted into the insertion recesses 20 of the lamp holder 18,
The cable 27 is led out from the insertion recess 20. The fitting recess 19 and the insertion recess 20 are filled with a silicone adhesive 28. The adhesive 28 fixes both ends of the light source lamp 24, the terminal 26 and the cable 27 to the lamp holder 18, and at the same time 26 and the cable 27 are insulated.
【００１０】２９は遮光カバーで、例えばポリエチレン
フィルムの内面に銀蒸着フィルムを貼付けて成り、光源
用ランプ２４の光が外部にもれないように導光板１１の
端面２５外方で光源２４の外周を覆っている。遮光カバ
ー２９の両端部は、導光板１１外端部に両面接着テープ
３０を介して接着されている。Reference numeral 29 denotes a light-shielding cover, which is formed by sticking a silver vapor-deposited film on the inner surface of a polyethylene film, for example, so that the light from the light source lamp 24 does not leak to the outside, and the light guide plate 11 has an outer peripheral surface outside the end surface 25. Covers. Both ends of the light-shielding cover 29 are adhered to the outer end of the light guide plate 11 via double-sided adhesive tape 30.
【００１１】[0011]
【発明の効果】本発明によれば、導光板１１に、前記光
源用ランプ２４の両端部を保持するランプホルダ１８が
一体に設けられ、該ランプホルダ１８は導光板１１と共
に一体成形されているので、導光板１１に一体成形した
ランプホルダ１８に光源用ランプ２４を装着すればよ
く、導光板装置の製造乃至組立が非常に簡単になし得
る。また、導光板１１に対するランプホルダ１８の位置
にばらつきが生じなくなり、導光板１１に対して光源用
ランプ２４を最適な位置に簡単に組み込むことができ
る。According to the present invention, the light guide plate 11 is integrally provided with the lamp holder 18 for holding both ends of the light source lamp 24, and the lamp holder 18 is integrally formed with the light guide plate 11. Therefore, the light source lamp 24 may be mounted on the lamp holder 18 integrally formed with the light guide plate 11, and the manufacture or assembly of the light guide plate device can be performed very easily. Further, the position of the lamp holder 18 with respect to the light guide plate 11 does not vary, and the light source lamp 24 can be easily incorporated in the light guide plate 11 at an optimum position.
【図１】本発明の一実施例を示す斜視図である。FIG. 1 is a perspective view showing an embodiment of the present invention.
【図２】本発明の一実施例を示す分解斜視図である。FIG. 2 is an exploded perspective view showing an embodiment of the present invention.
【図３】本発明の一実施例を示す側断面図である。FIG. 3 is a side sectional view showing an embodiment of the present invention.
【図４】本発明の一実施例を示す導光板の平面図であ
る。FIG. 4 is a plan view of a light guide plate showing an embodiment of the present invention.
【図５】従来例を示す側断面図である。FIG. 5 is a side sectional view showing a conventional example.
１１ 導光板 １２ 発光面 １３ 反射面 １８ ランプホルダ ２４ 光源用ランプ ２５ 端面 11 Light guide plate 12 Light emitting surface 13 Reflecting surface 18 Lamp holder 24 Light source lamp 25 End surface
Claims (1)
面（１３）とされた導光板（１１）を備え、導光板（１
１）の端面（２５）外方に光源用ランプ（２４）が設け
られ、光源用ランプ（２４）の光を導光板（１１）の端
面（２５）から入射し、導光板（１１）に入射した光を
反射面（１３）で反射させて、発光面（１２）側を発光
させるようにした導光板装置において、 導光板（１１）に、前記光源用ランプ（２４）の両端部
を保持するランプホルダ（１８）が一体に設けられ、該
ランプホルダ（１８）は導光板（１１）と共に一体成形
されていることを特徴とする導光板装置。1. A light guide plate (11) having one surface as a light emitting surface (12) and the other surface as a reflecting surface (13).
A light source lamp (24) is provided outside the end surface (25) of (1), and the light of the light source lamp (24) enters from the end surface (25) of the light guide plate (11) and enters the light guide plate (11). In the light guide plate device in which the reflected light is reflected by the reflection surface (13) so that the light emitting surface (12) side emits light, the light guide plate (11) holds both ends of the light source lamp (24). A light guide plate device, wherein a lamp holder (18) is integrally provided, and the lamp holder (18) is integrally formed with the light guide plate (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04320399A JP3073340B2 (en) | 1992-11-30 | 1992-11-30 | Light guide plate device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04320399A JP3073340B2 (en) | 1992-11-30 | 1992-11-30 | Light guide plate device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06167618A true JPH06167618A (en) | 1994-06-14 |
| JP3073340B2 JP3073340B2 (en) | 2000-08-07 |
Family
ID=18121038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04320399A Expired - Fee Related JP3073340B2 (en) | 1992-11-30 | 1992-11-30 | Light guide plate device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3073340B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007065654A (en) * | 2005-08-26 | 2007-03-15 | Gunko Kagi (Shenzhen) Yugenkoshi | Back light module |
| KR101252086B1 (en) * | 2006-02-06 | 2013-04-12 | 엘지디스플레이 주식회사 | Backlight assembly and Liquid Crystal display Module using thereof |
| KR101264678B1 (en) * | 2005-12-12 | 2013-05-16 | 엘지디스플레이 주식회사 | liquid crystal display device module |
| WO2015102214A1 (en) * | 2013-12-31 | 2015-07-09 | 동부라이텍 주식회사 | Lighting device |
-
1992
- 1992-11-30 JP JP04320399A patent/JP3073340B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007065654A (en) * | 2005-08-26 | 2007-03-15 | Gunko Kagi (Shenzhen) Yugenkoshi | Back light module |
| KR101264678B1 (en) * | 2005-12-12 | 2013-05-16 | 엘지디스플레이 주식회사 | liquid crystal display device module |
| KR101252086B1 (en) * | 2006-02-06 | 2013-04-12 | 엘지디스플레이 주식회사 | Backlight assembly and Liquid Crystal display Module using thereof |
| WO2015102214A1 (en) * | 2013-12-31 | 2015-07-09 | 동부라이텍 주식회사 | Lighting device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3073340B2 (en) | 2000-08-07 |
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