JPH03266303A - Exposure device - Google Patents
Exposure deviceInfo
- Publication number
- JPH03266303A JPH03266303A JP2064836A JP6483690A JPH03266303A JP H03266303 A JPH03266303 A JP H03266303A JP 2064836 A JP2064836 A JP 2064836A JP 6483690 A JP6483690 A JP 6483690A JP H03266303 A JPH03266303 A JP H03266303A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- lamp
- crystal panel
- exposure
- light
- 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
- Light Sources And Details Of Projection-Printing Devices (AREA)
- Liquid Crystal (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Planar Illumination Modules (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔発明の目的〕
（産業上の利用分野）
本発明は例えば、液晶表示装置、複写機、般照明器具な
どの露光装置に係り、露光面を照射する蛍光ランプを備
えたものに関する。[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to an exposure device such as a liquid crystal display device, a copying machine, and a general lighting device, and includes a fluorescent lamp that illuminates an exposure surface. related to things.
（従来の技術）
従来のこの種の露光装置、例えば液晶表示装置は、第４
図に示すように、上下左右方向に並設された各液晶表示
ユニット１の内部には液晶パネル２の背面側に設けた拡
散板３に対向してバックライトの光源としてランプが配
設されている。この光源のランプは暗部が生しないよう
に２本の片口金の蛍光ランプ４を中間部を交差させて口
金部５が後方に位置させて配設されている。そして、こ
の各蛍光ランプ４は基端に口金部５を有する片口金形の
蛍光ランプで、口金部５に基端を取付けた２本の直管形
ガラス管６．６の先端部をそれぞれ閉塞し、このガラス
管６．６の先端近傍を連通管７で互いに連通させた構造
が採られていた。(Prior Art) A conventional exposure device of this type, for example, a liquid crystal display device, has a fourth
As shown in the figure, inside each liquid crystal display unit 1 arranged in parallel in the vertical and horizontal directions, a lamp is disposed as a light source for a backlight, facing a diffuser plate 3 provided on the back side of the liquid crystal panel 2. There is. The lamp of this light source is arranged such that two single-cap fluorescent lamps 4 are crossed at the middle part, and the cap part 5 is positioned at the rear so as not to create a dark area. Each of the fluorescent lamps 4 is a single-cap type fluorescent lamp having a cap 5 at the base end, and the distal ends of two straight glass tubes 6 and 6 whose base ends are attached to the cap 5 are respectively closed. However, a structure was adopted in which the vicinity of the tips of the glass tubes 6, 6 were communicated with each other through a communicating tube 7.
（発明が解決しようとする課題）
上記従来の構造の液晶表示装置では、蛍光ランプ４のガ
ラス管６．６の先端部に最冷部が生じて暗部となり、液
晶パネル２の表示面に明るさのむらが発生し、画質の低
下をまねく問題があった。(Problems to be Solved by the Invention) In the liquid crystal display device having the conventional structure described above, the coldest part occurs at the tip of the glass tube 6.6 of the fluorescent lamp 4, resulting in a dark part, and the brightness appears on the display surface of the liquid crystal panel 2. There was a problem that unevenness occurred and the image quality deteriorated.
本発明は上記問題点に鑑みなされたもので、蛍光ランプ
に最冷部が生じないため、暗部がなく、露光面の光は均
一となる露光装置を提供するものである。The present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide an exposure apparatus in which there is no dark part because the fluorescent lamp does not have the coldest part, and the light on the exposed surface is uniform.
（課題を解決するための手段）
本発明の露光装置は、露光面に対向して配設された蛍光
ランプを備え、前記ランプは中間部に最冷部とならない
曲成部を有する蛍光ランプとしたものである。(Means for Solving the Problems) An exposure apparatus of the present invention includes a fluorescent lamp disposed facing an exposure surface, and the lamp has a curved part in the middle part which is not the coldest part. This is what I did.
（作用）
本発明の露光装置は、蛍光ランプは、曲成部が最冷部と
ならないため、ランプに暗部が発生されず、露光面の均
一化が図られる。(Function) In the exposure apparatus of the present invention, since the curved part of the fluorescent lamp does not become the coldest part, no dark part is generated in the lamp, and the exposed surface can be made uniform.
（実施例）
本発明の露光装置の一実施例の構成を液晶表示装置につ
いて第１図乃至第３図に基づき説明する。(Embodiment) The structure of an embodiment of the exposure apparatus of the present invention will be described with reference to FIGS. 1 to 3 for a liquid crystal display device.
１１は液晶表示ユニットで、この表示ユニット１１は、
筐体１２の前面開口部１３に露光面となる液晶パネル１
４が取付けられ、この液晶パネル１４の内面に添着して
透光性光拡散板１５が配設されている。11 is a liquid crystal display unit, and this display unit 11 is
A liquid crystal panel 1 serving as an exposure surface is provided in the front opening 13 of the housing 12.
4 is attached to the liquid crystal panel 14, and a translucent light diffusing plate 15 is attached to the inner surface of the liquid crystal panel 14.
この光拡散板１５に対向してこの光拡散板１５の後方に
先端部を屈曲した曲成部１６を有し基端を口金部１７に
取付けた略Ｕ字状のガラス管１８を備えた蛍光ランプ１
９．１９が左右から中間部を交差させて、口金部１７は
後方に配設されている。そして、この蛍光ランプ１９．
１９は曲成部１６が最冷部とならないように連続的に弯
曲している。また前記筐体１２の両側内面に前記ランプ
１９．１９からの照射光を前記光拡散板１５に向けて反
射させる側面反射体２０が配設されている。さらに前記
筐体１２内に前記ランプ１９゜１９を内包して前記ラン
プ１９．１９からの照射光を前記光拡散板１５に反射さ
せる主反射体２１が配設されている。A fluorescent lamp equipped with a substantially U-shaped glass tube 18 having a bent portion 16 with a bent tip portion facing and rearward of the light diffusing plate 15 and having a base end attached to a base portion 17. lamp 1
9.19 intersects the middle part from the left and right, and the cap part 17 is arranged at the rear. And this fluorescent lamp 19.
19 is continuously curved so that the curved part 16 does not become the coldest part. Further, side reflectors 20 are disposed on both inner surfaces of the housing 12 to reflect the irradiated light from the lamps 19 and 19 toward the light diffusing plate 15. Furthermore, a main reflector 21 is disposed within the housing 12 to enclose the lamp 19.19 and reflect the irradiated light from the lamp 19.19 onto the light diffusing plate 15.
また前記ランプ１９． １９に接続したコード２２は前
記表示ユニット１１の筐体１２の後部に設けた点灯装置
２３に接続されている。Further, the lamp 19. A cord 22 connected to the display unit 19 is connected to a lighting device 23 provided at the rear of the housing 12 of the display unit 11.
そしてこの各表示ユニット１１は表示ブロック筐体２４
に上下方向に並列に挿脱自在に収納され、このブロック
筐体２４の左右に突出する支持アーム２５にてこのブロ
ック筐体２４に収納した表示ユニット１１は支持される
。さらにこの各表示ユニット１１はラッチ装置２６によ
って妄りに前方への抜は外れすることが阻止されている
。Each display unit 11 has a display block housing 24.
The display units 11 housed in the block housing 24 are supported by support arms 25 that protrude from the left and right sides of the block housing 24 . Further, each display unit 11 is prevented from being accidentally pulled out forward by a latch device 26.
そしてこの表示ブロック筐体２４が第３図に示すように
、左右方向に並列に配設され、表示ユニット１１は上下
方向および左右方向に配列される。As shown in FIG. 3, the display block housings 24 are arranged in parallel in the horizontal direction, and the display units 11 are arranged in the vertical and horizontal directions.
次にこの実施例の作用を説明する。Next, the operation of this embodiment will be explained.
液晶パネル１４は点灯装置２３により駆動されて表示作
動され、ランプ１９．１９からの照射光の直射光および
主反射体２１と側面反射体２Ｇの反射光が光拡散板１５
を照射し、液晶パネル１４を拡散光で照明する。The liquid crystal panel 14 is driven by the lighting device 23 to perform display operation, and the direct light from the lamps 19 and 19 and the reflected light from the main reflector 21 and the side reflector 2G are transmitted to the light diffusing plate 15.
, and the liquid crystal panel 14 is illuminated with diffused light.
そしてこのランプ１９．１９は曲成部１６が最冷部とな
らないため、この曲成部１６が暗部とならず、ランプ１
９．１９は全長に亘って均等に光を放出し、液晶パネル
１４の表示面の明るさにむらが生じることがなく、良好
な画質が得られる。In this lamp 19.19, the curved part 16 is not the coldest part, so this curved part 16 does not become a dark part, and the lamp 19.
9.19 emits light uniformly over the entire length, and there is no unevenness in the brightness of the display surface of the liquid crystal panel 14, resulting in good image quality.
なお、前記実施例では、液晶表示装置を示したが、露光
する面の均一化が望まれる装置であれば、液晶パネル拡
散板の部分を各種露光板にて形成してもよい。Although a liquid crystal display device is shown in the above embodiment, the liquid crystal panel diffusion plate portion may be formed of various types of exposure plates as long as it is desired to uniformize the exposed surface.
本発明によれば、露光面に対向する蛍光ランプは中間部
に最冷部とならない曲成部を有する蛍光ランプとしたの
で、ランプには暗部が生じることがなく、液晶パネルの
表示面には光むらが発生せず、均一の露光面が得られる
ものである。According to the present invention, since the fluorescent lamp facing the exposure surface has a curved part in the middle part which is not the coldest part, there is no dark part in the lamp, and the display surface of the liquid crystal panel is A uniform exposed surface can be obtained without causing light unevenness.
第１図は本発明の一実施例を示す露光装置の平面図、第
２図は同上側面図、第３図は同上正面図、第４図は従来
の露光装置の平面図である。
１４・・露光面となる液晶パネル、１６・・曲成部、１
９・・蛍光ランプ。FIG. 1 is a plan view of an exposure apparatus showing an embodiment of the present invention, FIG. 2 is a side view of the same, FIG. 3 is a front view of the same, and FIG. 4 is a plan view of a conventional exposure apparatus. 14...Liquid crystal panel serving as an exposure surface, 16...Bending part, 1
9. Fluorescent lamp.
Claims (1)
蛍光ランプとした ことを特徴とする露光装置。(1) An exposure apparatus comprising: a fluorescent lamp disposed to face an exposure surface, the lamp having a curved part in the middle that does not become the coldest part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2064836A JPH03266303A (en) | 1990-03-15 | 1990-03-15 | Exposure device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2064836A JPH03266303A (en) | 1990-03-15 | 1990-03-15 | Exposure device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03266303A true JPH03266303A (en) | 1991-11-27 |
Family
ID=13269728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2064836A Pending JPH03266303A (en) | 1990-03-15 | 1990-03-15 | Exposure device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03266303A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006134741A1 (en) * | 2005-06-13 | 2006-12-21 | Sharp Kabushiki Kaisha | Illuminator and display |
| US7575342B2 (en) * | 2006-05-25 | 2009-08-18 | Chunghwa Picture Tubes, Ltd. | Liquid crystal display and backlight module including tilted lamp tubes |
-
1990
- 1990-03-15 JP JP2064836A patent/JPH03266303A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006134741A1 (en) * | 2005-06-13 | 2006-12-21 | Sharp Kabushiki Kaisha | Illuminator and display |
| US7802912B2 (en) | 2005-06-13 | 2010-09-28 | Sharp Kabushiki Kaisha | Illumination device and display device |
| US7575342B2 (en) * | 2006-05-25 | 2009-08-18 | Chunghwa Picture Tubes, Ltd. | Liquid crystal display and backlight module including tilted lamp tubes |
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