JP2002006282A - Liquid crystal display device - Google Patents
Liquid crystal display deviceInfo
- Publication number
- JP2002006282A JP2002006282A JP2000192361A JP2000192361A JP2002006282A JP 2002006282 A JP2002006282 A JP 2002006282A JP 2000192361 A JP2000192361 A JP 2000192361A JP 2000192361 A JP2000192361 A JP 2000192361A JP 2002006282 A JP2002006282 A JP 2002006282A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- crystal panel
- container
- display device
- 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
- Liquid Crystal (AREA)
- Transforming Electric Information Into Light Information (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、液晶表示素子を使
用してスクリーン上に任意の映像を投影する液晶表示装
置に係り、特に液晶表示素子の冷却装置に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display device for projecting an arbitrary image on a screen using a liquid crystal display device, and more particularly to a cooling device for a liquid crystal display device.
【０００２】[0002]
【従来の技術】従来の液晶表示装置として、液晶プロジ
ェクタがあるが、その構成を図５，図６を参照して説明
する。図５は単板式の液晶プロジェクタであり、光源１
からの光をリフレクタ２で反射し、赤外線や紫外線等の
不要光をフィルタ３で除去し、コンデンサレンズ４及び
リレーレンズ５を介して液晶パネル６に照射するように
している。液晶パネル６は映像信号によって駆動される
ため、映像信号によって透過率が変化し、液晶パネル６
に入射した光は映像光となって出射し、集光レンズ７及
び投射レンズ８を介してスクリーン９に投影される。
尚、前記液晶パネル６の入射側及び出射側にはそれぞれ
偏光板（図示せず）が配置されている。2. Description of the Related Art As a conventional liquid crystal display device, there is a liquid crystal projector, and the structure thereof will be described with reference to FIGS. FIG. 5 shows a single-panel type liquid crystal projector, and a light source 1
Is reflected by the reflector 2, unnecessary light such as infrared rays and ultraviolet rays is removed by the filter 3, and the liquid crystal panel 6 is irradiated via the condenser lens 4 and the relay lens 5. Since the liquid crystal panel 6 is driven by a video signal, the transmittance changes according to the video signal, and the liquid crystal panel 6
Is emitted as image light, and is projected on a screen 9 via a condenser lens 7 and a projection lens 8.
Incidentally, polarizing plates (not shown) are arranged on the incident side and the exit side of the liquid crystal panel 6, respectively.
【０００３】また図６はＲ（赤），Ｇ（緑），Ｂ（青）
用の液晶パネルを有する三板式の液晶プロジェクタを示
している。図６において、１１は光源であり、この光源
１１からの白色光は赤外線や紫外線等の不要光をフィル
タ１２で除去した後、ダイクロイックミラー１４により
Ｒ光とＧＢ光に分光され。分離されたＲ光はミラー１５
で反射され、レンズ１６を介してＲ用の液晶パネル１７
に照射される。FIG. 6 shows R (red), G (green), and B (blue).
1 shows a three-panel type liquid crystal projector having a liquid crystal panel for use in the projector. In FIG. 6, reference numeral 11 denotes a light source. White light from the light source 11 is separated into unnecessary light such as infrared light and ultraviolet light by a filter 12, and then separated by a dichroic mirror 14 into R light and GB light. The separated R light is reflected by the mirror 15
Is reflected by the liquid crystal panel 17 for R through the lens 16.
Is irradiated.
【０００４】またダイクロイックミラー１４により分離
されたＧＢ光はダイクロイックミラー１８によりＧ光と
Ｂ光に分光され、Ｇ光はレンズ１９を介してＧ用の液晶
パネル２０に照射され、Ｂ光はレンズ２１を介してＢ用
の液晶パネル２２に照射される。The GB light separated by the dichroic mirror 14 is split into G light and B light by a dichroic mirror 18, the G light is irradiated to a G liquid crystal panel 20 via a lens 19, and the B light is Is irradiated on the liquid crystal panel 22 for B through.
【０００５】さらに、液晶パネル１７を透過したＲ光は
ダイクロイックミラー２３を透過し、液晶パネル２０を
透過したＧ光はダイクロイックミラー２３で反射され、
それぞれダイクロイックミラー２４を透過して投射レン
ズ２５に入射する。また液晶パネル２２を透過したＢ光
はミラー２６で反射され、かつダイクロイックミラー２
４で反射され投射レンズ２５に入射する。つまり、ダイ
クロイックミラー１４，１８は光分離手段を構成し、ダ
イクロイックミラー２３，２４は光合成手段を構成して
いる。Further, the R light transmitted through the liquid crystal panel 17 is transmitted through the dichroic mirror 23, and the G light transmitted through the liquid crystal panel 20 is reflected by the dichroic mirror 23.
The light passes through the dichroic mirror 24 and enters the projection lens 25. Further, the B light transmitted through the liquid crystal panel 22 is reflected by the mirror 26 and is reflected by the dichroic mirror 2.
The light is reflected by 4 and enters the projection lens 25. That is, the dichroic mirrors 14 and 18 constitute light separating means, and the dichroic mirrors 23 and 24 constitute light combining means.
【０００６】こうしてＲ，Ｇ，Ｂ用の液晶パネル１７，
２０，２２をＲ，Ｇ，Ｂの原色信号で駆動することによ
り、カラー画像を投射することができる。尚、前記液晶
パネル１７，２０，２２の入射側及び出射側にはそれぞ
れ偏光板が配置されているが、図では省略している。Thus, the liquid crystal panels 17 for R, G, B
By driving the pixels 20 and 22 with the R, G and B primary color signals, a color image can be projected. Incidentally, polarizing plates are arranged on the incident side and the outgoing side of the liquid crystal panels 17, 20, 22, respectively, but they are omitted in the figure.
【０００７】上述したような液晶プロジェクタでは、光
源からの光は液晶パネルや周辺の光学素子に吸収され熱
となるため、この熱によって液晶パネル等の特性が劣化
してしまう。このため、従来では各種の冷却装置が使用
されている。この冷却方式は大別して空冷式と液冷式に
分けられる。In the above-described liquid crystal projector, light from a light source is absorbed by the liquid crystal panel and peripheral optical elements and becomes heat, and the heat deteriorates the characteristics of the liquid crystal panel and the like. For this reason, various types of cooling devices have conventionally been used. This cooling system is roughly classified into an air cooling system and a liquid cooling system.
【０００８】空冷式は、軸流ファンやシロッコファンを
用いて液晶パネルや偏光板に冷却風を送り、空気の流れ
によって直接冷却するものである。しかしながら空冷式
の欠点は騒音を発生することと、ゴミやほこりを吸い込
んでしまうことである。ゴミやほこりを吸い込んだ場
合、それが液晶パネル面に付着すると投影画像に影響を
及ぼすため、ゴミを吸収するフィルターを設けたり、ダ
クトを設けてより強い風を送るようにしているが、装置
が複雑かつ大型になる欠点がある。また、より強い風を
送るにはファンの回転数を高める必要があり、騒音の発
生を防ぐことは困難であった。In the air-cooling type, cooling air is sent to a liquid crystal panel or a polarizing plate using an axial fan or a sirocco fan, and is directly cooled by the flow of air. However, the drawbacks of air cooling are that they generate noise and suck in dirt and dust. If dust or dust is inhaled, if it adheres to the LCD panel surface, it will affect the projected image.Therefore, a filter that absorbs dust or a duct is provided to send stronger wind. There is a disadvantage that it becomes complicated and large. Further, in order to send a stronger wind, it is necessary to increase the rotation speed of the fan, and it has been difficult to prevent the generation of noise.
【０００９】一方、液冷式は液晶パネルのガラス面に直
接冷却液を接触させて温度を下げる方式であり、風冷式
のような騒音を発することはないが、液晶パネルと入射
側及び出射側の偏光板を１つの槽で一度に冷やすことは
難しく、液晶パネルの入射側を液冷にし、出射側を空冷
にする方法も取られている。また液冷式の一例として特
開平１１−１１９２０２号に記載の例もあるが、冷却液
を封入する容器の構造や液洩れ防止の構造が複雑であっ
た。On the other hand, the liquid-cooled type is a method in which a cooling liquid is brought into direct contact with a glass surface of a liquid crystal panel to lower the temperature, and does not generate noise as in the case of an air-cooled type. It is difficult to cool the polarizing plate on one side at a time in one tank, and a method of cooling the incident side of the liquid crystal panel with liquid and cooling the exit side with air has been adopted. As an example of the liquid cooling type, there is an example described in Japanese Patent Application Laid-Open No. 11-119202, but the structure of the container for sealing the cooling liquid and the structure for preventing liquid leakage are complicated.
【００１０】[0010]
【発明が解決しようとする課題】このように従来の液晶
表示装置では、液晶パネル等を冷却する場合、空冷式で
は騒音が発生したりゴミやほこりの付着という問題点が
あり、液冷式では構造上の改善がさらに求められてい
た。本発明は、上述の問題点に鑑み、効率のよい冷却装
置を備えた液晶表示装置を提供することを目的とするも
のである。As described above, in the conventional liquid crystal display device, when a liquid crystal panel or the like is cooled, there is a problem that noise is generated in the air-cooled type or dust or dust adheres. There was a further need for structural improvements. SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a liquid crystal display device having an efficient cooling device.
【００１１】[0011]
【課題を解決するための手段】本発明の液晶表示装置
は、光源と、この光源の光軸上に配置された液晶パネ
ル、及び前記光軸上の液晶パネルの入射側及び出射側に
それぞれ配置された第１，第２偏光板を有する液晶表示
装置であって、前記光軸上に配置され、前記液晶パネル
を挿入可能な挿入口を備えるとともに、前記入射側およ
び出射側に面してそれぞれ窓を形成し、入射側の窓及び
出射側の窓をそれぞれ前記第１，第２の偏光板で塞ぐよ
うにした容器と、前記容器に前記液晶パネルを挿入した
後、前記挿入口を塞ぐ封止手段と、前記容器に挿入され
た液晶パネルを位置決めする手段と、前記第１，第２の
偏光板及び前記封止手段によって形成される前記容器の
内部空間に注入された透光性冷却媒体とを具備したこと
を特徴とする。A liquid crystal display device according to the present invention comprises a light source, a liquid crystal panel arranged on the optical axis of the light source, and an incident side and an exit side of the liquid crystal panel on the optical axis. A liquid crystal display device having a first and a second polarizing plate, wherein the liquid crystal display device is provided on the optical axis and has an insertion port through which the liquid crystal panel can be inserted, and faces the incident side and the emission side, respectively. A container in which a window is formed, and an entrance-side window and an exit-side window are closed with the first and second polarizing plates, respectively; and a seal for closing the insertion opening after inserting the liquid crystal panel into the container. Stopping means, means for positioning the liquid crystal panel inserted in the container, and a translucent cooling medium injected into the inner space of the container formed by the first and second polarizing plates and the sealing means. And characterized in that:
【００１２】本発明によれば、前記容器に液晶パネルを
挿入して、前記挿入口を封止手段で塞ぎ、前記容器の窓
を第１，第２の偏光板で塞ぐことで冷却媒体の室を形成
することができ、この室内に冷却媒体を注入することに
より、液晶パネルや偏光板に発生する熱を冷却媒体によ
って吸収し、さらに容器を介して外部へ熱を放散するこ
とができる。According to the present invention, a liquid crystal panel is inserted into the container, the insertion opening is closed with sealing means, and the window of the container is closed with the first and second polarizing plates, so that the cooling medium chamber is formed. By injecting a cooling medium into this chamber, heat generated in the liquid crystal panel or the polarizing plate can be absorbed by the cooling medium, and further, the heat can be dissipated to the outside via the container.
【００１３】[0013]
【発明の実施の形態】以下、図面を参照して本発明の実
施の形態について説明する。図１は本発明の液晶表示装
置の一実施の形態を示す分解斜視図であり、冷却構造を
主体に説明したものである。また、図２は組立てた状態
を示す断面図である。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an exploded perspective view showing one embodiment of the liquid crystal display device of the present invention, and mainly describes a cooling structure. FIG. 2 is a sectional view showing an assembled state.
【００１４】図１において、３０は液晶パネル、４０，
５０は液晶パネル３０の入射側及び出射側の偏光板、６
０は容器、７０は放熱板である。In FIG. 1, reference numeral 30 denotes a liquid crystal panel;
50 is a polarizing plate on the entrance side and the exit side of the liquid crystal panel 30;
0 is a container, 70 is a heat sink.
【００１５】液晶パネル３０は、２枚のガラス板の間に
液晶を封入したもので、一方のガラス板に共通電極を形
成し、他方のガラス板に画素電極としてのＴＦＴを配置
しており、映像表示面３１と周囲のフレーム３２を有し
ている。また、前記電極を制御するため、映像信号や水
平・垂直駆動信号等を供給するフラットケーブル３３が
結合され、底面から引き出されている。The liquid crystal panel 30 has liquid crystal sealed between two glass plates. A common electrode is formed on one glass plate, and a TFT as a pixel electrode is disposed on the other glass plate. It has a surface 31 and a surrounding frame 32. In order to control the electrodes, a flat cable 33 for supplying a video signal, a horizontal / vertical drive signal, and the like is connected and pulled out from the bottom surface.
【００１６】また、入射側の偏光板４０及び出射側の偏
光板５０は、図２に示すようにそれぞれガラス４１，５
１の一面にフィルム状の偏光素子４２，５２を貼り合わ
せて成る。As shown in FIG. 2, the polarizing plate 40 on the incident side and the polarizing plate 50 on the emitting side are made of glass 41, 5 respectively.
A film-like polarizing element 42, 52 is attached to one surface of the substrate.
【００１７】また、容器６０は、アルミなどの熱伝導率
の高い物質で作られ、光の入射側及び出射側にはそれぞ
れ、窓６１，６２が形成され、この窓６１，６２を前記
偏光板４０，５０によって塞ぐようにしている。偏光板
４０，５０は、図２に示すようにその外周部が紫外線硬
化接着剤４３，５３によって、窓６１，６２を塞ぐよう
に貼り付けられる。また、容器６０の底辺には前記液晶
パネル３０を挿入可能な挿入口６３が設けられている。
尚、偏光板４０及び偏光板５０は、偏光素子４２，５２
が外側に位置する例を図示しているが、偏光素子４２，
５２が内側になるように窓６１，６２に貼り付けても良
い。The container 60 is made of a material having a high thermal conductivity such as aluminum, and has windows 61 and 62 formed on the light incident side and the light emitting side, respectively. 40 and 50 are used to close the space. As shown in FIG. 2, the polarizing plates 40 and 50 are adhered to the outer peripheral portions thereof with ultraviolet curing adhesives 43 and 53 so as to cover the windows 61 and 62. Further, an insertion port 63 into which the liquid crystal panel 30 can be inserted is provided at the bottom of the container 60.
The polarizing plates 40 and 50 are composed of polarizing elements 42 and 52.
Is shown on the outside, the polarizing elements 42,
It may be attached to windows 61 and 62 such that 52 is inside.
【００１８】図３は、容器６０を底辺側から見た断面図
であり、側壁６４，６５の内面には、液晶パネル３０が
挿入されたときに、その左右の外周をガイドするための
溝６６，６７を形成している。そして、液晶パネル３０
が容器６０内に挿入された後、前記挿入口６３には、図
２に示すように光路に当たらない範囲でウレタン又はエ
ポキシ等の２液硬化性樹脂６８が充填され、液晶パネル
３０の底部の固定と挿入口６３の封鎖を行うようにして
いる。FIG. 3 is a cross-sectional view of the container 60 as viewed from the bottom side. In the inner surfaces of the side walls 64 and 65, grooves 66 for guiding the left and right outer peripheries of the liquid crystal panel 30 when the liquid crystal panel 30 is inserted. , 67 are formed. Then, the liquid crystal panel 30
After the is inserted into the container 60, the insertion opening 63 is filled with a two-part curable resin 68 such as urethane or epoxy in a range that does not hit the optical path as shown in FIG. The fixing and the closing of the insertion slot 63 are performed.
【００１９】また、容器６０の天井部には、図４で示す
ように冷却液８０を注入するための注入口６９が設けら
れ、さらに容器６０内部の圧力調整を行う圧力弁９０が
取り付けられている。注入口６９にはゴムなどのパッキ
ン９１が嵌められ、それに０リング９２を介して栓部材
９３が挿入されるようになっている。また圧力弁９０
は、容器６０の天井部に形成された穴（図示せず）を塞
ぐように取り付けられ、この圧力弁９０を天井部に固定
するため、押え部材９４がネジ９５等によって取り付け
られている。Further, as shown in FIG. 4, an inlet 69 for injecting a cooling liquid 80 is provided at the ceiling of the container 60, and a pressure valve 90 for adjusting the pressure inside the container 60 is provided. I have. A packing 91 made of rubber or the like is fitted into the inlet 69, and a plug member 93 is inserted into the packing 91 via an O-ring 92. Pressure valve 90
Is mounted so as to close a hole (not shown) formed in the ceiling of the container 60, and a holding member 94 is attached with a screw 95 or the like to fix the pressure valve 90 to the ceiling.
【００２０】さらに、容器６０の天井部には放熱板７０
が取り付けられる。放熱板７０は、複数のフィン７１を
有し、図１に示すように前記注入口６９や圧力弁９０に
対向する位置には窪み７２や穴７３が形成されている。
なお、放熱板７０は容器６０と一体構造として成形して
も良い。Further, a radiator plate 70 is provided on the ceiling of the container 60.
Is attached. The heat radiating plate 70 has a plurality of fins 71, and as shown in FIG. 1, a depression 72 and a hole 73 are formed at a position facing the inlet 69 and the pressure valve 90.
The heat sink 70 may be formed integrally with the container 60.
【００２１】こうして、容器６０は偏光板４０，５０及
び硬化樹脂６８によって密閉され、注入口６９を介して
冷却媒体としての冷却液８０が注入されることになる。
尚、冷却液８０としては透光性の冷媒が使用され、例え
ばエチレングリコールやグリセリン、あるいはこれらの
水溶液、又はエチレングリコールとグリセリンの混合液
等が適している。また冷却液８０が注入された後、冷却
液８０の温度が変化して体積が膨張収縮しても、調圧用
の圧力弁９０によって吸収され、冷却液８０の圧力を一
定に保つことができる。Thus, the container 60 is sealed by the polarizing plates 40 and 50 and the cured resin 68, and the cooling liquid 80 as a cooling medium is injected through the injection port 69.
A translucent refrigerant is used as the cooling liquid 80. For example, ethylene glycol or glycerin, or an aqueous solution thereof, or a mixed liquid of ethylene glycol and glycerin is suitable. Further, even if the temperature of the coolant 80 changes and the volume expands and contracts after the coolant 80 is injected, the pressure is absorbed by the pressure regulating pressure valve 90 and the pressure of the coolant 80 can be kept constant.
【００２２】上記したように、本発明の冷却装置は、容
器６０に液晶パネル３０を挿入して硬化樹脂６８と偏光
板４０，５０で密閉するという簡単な構成で冷却液８０
の室を形成することができる。As described above, the cooling device of the present invention has a simple structure in which the liquid crystal panel 30 is inserted into the container 60 and hermetically sealed with the cured resin 68 and the polarizing plates 40 and 50.
Chamber can be formed.
【００２３】そして液晶パネル３０に発生する熱は冷却
液８０によって吸収され、さらに熱は容器６０を介して
外部へ放散され、放熱板７０によってさらに放熱され
る。また偏光板４０，５０も冷却液８０に接することに
なるから、偏光板４０，５０の熱も冷却液８０によって
吸収され、容器６０、放熱板７０を介して外部に放熱さ
れる。Then, the heat generated in the liquid crystal panel 30 is absorbed by the cooling liquid 80, the heat is further radiated to the outside through the container 60, and further radiated by the heat radiating plate 70. Since the polarizing plates 40 and 50 also come into contact with the cooling liquid 80, the heat of the polarizing plates 40 and 50 is also absorbed by the cooling liquid 80 and is radiated to the outside via the container 60 and the heat radiating plate 70.
【００２４】また、図２に示すように液晶パネル３０の
上辺の周囲にも冷却液８０が満たされているから、冷却
液８０が液晶パネル３０の一方の面から他方の面へと自
然対流し冷却効果も高くなる。また冷却液８０の温度変
化による体積の膨張収縮は圧力弁９０によって吸収する
ことができる。Further, as shown in FIG. 2, since the cooling liquid 80 is also filled around the upper side of the liquid crystal panel 30, the cooling liquid 80 naturally convects from one surface of the liquid crystal panel 30 to the other surface. The cooling effect also increases. The expansion and contraction of the volume due to the temperature change of the cooling liquid 80 can be absorbed by the pressure valve 90.
【００２５】さらに本発明の構成では、液晶パネル３０
のフラットケーブル３３は、容器６０の底部から取出さ
れ、かつ硬化樹脂６８で固定されているので、信号供給
線路の配線を簡略化することができ、ケーブル３３と液
晶パネルとの結合部が外れることもない。Further, in the structure of the present invention, the liquid crystal panel 30
Since the flat cable 33 is taken out from the bottom of the container 60 and fixed with the cured resin 68, the wiring of the signal supply line can be simplified, and the joint between the cable 33 and the liquid crystal panel can be disconnected. Nor.
【００２６】なお、本発明で述べた冷却装置は、図５の
ような単板式プロジェクタ及び図６に示すような多板式
プロジェクタの液晶パネル及び偏光板の冷却として利用
することができる。The cooling device described in the present invention can be used for cooling a liquid crystal panel and a polarizing plate of a single-plate type projector as shown in FIG. 5 and a multi-plate type projector as shown in FIG.
【００２７】[0027]
【発明の効果】以上のように本発明に使用する冷却装置
は、簡単な構成で冷却室を形成することができ、そこに
収納される液晶パネルは冷却液によって効率よく冷却す
ることができる。また偏光板も液晶パネルと同様に冷却
液により冷却することができる。したがって、空冷に比
較して騒音を発生することもない。As described above, the cooling device used in the present invention can form a cooling chamber with a simple structure, and the liquid crystal panel housed therein can be efficiently cooled by the cooling liquid. Also, the polarizing plate can be cooled by a cooling liquid like the liquid crystal panel. Therefore, no noise is generated as compared with air cooling.
【図１】本発明の一実施の形態による液晶表示装置の主
要部の構成を示す斜視図。FIG. 1 is a perspective view showing a configuration of a main part of a liquid crystal display device according to an embodiment of the present invention.
【図２】図１の一実施の形態を組立て、側面からみた断
面図。FIG. 2 is a cross-sectional view of the embodiment of FIG. 1 viewed from the side;
【図３】図１の一実施の形態を組立て、底面からみた断
面図。FIG. 3 is a sectional view of the embodiment of FIG. 1 as assembled and viewed from the bottom.
【図４】本発明に使用する容器の天井部の構成を説明す
る断面図。FIG. 4 is a cross-sectional view illustrating a configuration of a ceiling portion of a container used in the present invention.
【図５】単板式液晶プロジェクタの構成を示す構成図。FIG. 5 is a configuration diagram showing a configuration of a single-panel type liquid crystal projector.
【図６】多板式液晶プロジェクタの構成を示す構成図。FIG. 6 is a configuration diagram showing a configuration of a multi-panel liquid crystal projector.
３０…液晶パネル ４０，５０…偏光板 ６０…容器 ６１，６２…窓 ６３…挿入口 ６６，６７…ガイド溝 ６９…注入口 ７０…放熱板 ８０…冷却液 ９０…圧力弁 DESCRIPTION OF SYMBOLS 30 ... Liquid crystal panel 40, 50 ... Polarizing plate 60 ... Container 61, 62 ... Window 63 ... Insert port 66, 67 ... Guide groove 69 ... Injection port 70 ... Heat sink 80 ... Cooling liquid 90 ... Pressure valve
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 2H088 EA12 HA05 HA18 MA20 2H089 HA40 JA10 QA06 TA15 UA05 5C058 AA06 AB05 BA23 BA30 BA35 EA26 EA43 5G435 AA00 AA12 BB12 BB17 CC12 DD02 DD04 EE01 EE13 FF05 GG44 LL15 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2H088 EA12 HA05 HA18 MA20 2H089 HA40 JA10 QA06 TA15 UA05 5C058 AA06 AB05 BA23 BA30 BA35 EA26 EA43 5G435 AA00 AA12 BB12 BB17 CC12 DD02 DD04 EE01 EE13 FF05 GG44 LL
Claims (6)
液晶パネル、及び前記光軸上の液晶パネルの入射側及び
出射側にそれぞれ配置された第１，第２偏光板を有する
液晶表示装置であって、 前記光軸上に配置され、前記液晶パネルを挿入可能な挿
入口を備えるとともに、前記入射側および出射側に面し
てそれぞれ窓を形成し、入射側の窓及び出射側の窓をそ
れぞれ前記第１，第２の偏光板で塞ぐようにした容器
と、 前記容器に前記液晶パネルを挿入した後、前記挿入口を
塞ぐ封止手段と、 前記容器に挿入された液晶パネルを位置決めする手段
と、 前記第１，第２の偏光板及び前記封止手段によって形成
される前記容器の内部空間に注入された透光性冷却媒体
とを具備したことを特徴とする液晶表示装置。1. A liquid crystal comprising: a light source; a liquid crystal panel disposed on an optical axis of the light source; and first and second polarizing plates disposed on an incident side and an output side of the liquid crystal panel on the optical axis. A display device, which is provided on the optical axis, has an insertion opening through which the liquid crystal panel can be inserted, and has windows formed on the entrance side and the exit side, respectively, and the entrance side window and the exit side Containers for closing the windows with the first and second polarizing plates, sealing means for closing the insertion opening after inserting the liquid crystal panel into the container, and a liquid crystal panel inserted into the container A liquid crystal display device comprising: a positioning means; and a translucent cooling medium injected into an inner space of the container formed by the first and second polarizing plates and the sealing means. .
よる体積変化を吸収する圧力弁を備えたことを特徴とす
る請求項１記載の液晶表示装置。2. The liquid crystal display device according to claim 1, wherein the container includes a pressure valve for absorbing a volume change due to a temperature change of the cooling medium.
ことを特徴とする請求項１記載の液晶表示装置。3. The liquid crystal display device according to claim 1, wherein said container sealing means is made of a cured resin.
号を供給するケーブルを備え、このケーブルと液晶パネ
ルの結合部を前記封止手段で固定したことを特徴とする
請求項１記載の液晶表示装置。4. The liquid crystal display according to claim 1, wherein the liquid crystal panel includes a cable for supplying a signal to the liquid crystal panel, and a joint between the cable and the liquid crystal panel is fixed by the sealing means. apparatus.
され、その内部に前記液晶パネルが挿入されたとき、液
晶パネルの側面を支持する位置決め用のガイド溝を形成
してなることを特徴とする請求項１記載の液晶表示装
置。5. The method according to claim 1, wherein the container is formed of a material having high thermal conductivity, and has a guide groove for positioning that supports a side surface of the liquid crystal panel when the liquid crystal panel is inserted therein. 2. The liquid crystal display device according to claim 1, wherein:
パネルと、 前記液晶パネルに信号を供給するため、前記液晶パネル
に結合したケーブルと、 前記光軸上の液晶パネルの入射側及び出射側にそれぞれ
配置される第１，第２偏光板と、 前記光軸上に配置され、前記液晶パネルを挿入可能な挿
入口を備えるとともに、前記入射側および出射側に面し
てそれぞれ窓を形成し、入射側の窓及出射側の窓をそれ
ぞれ前記第１，第２の偏光板で塞ぐようにした容器と、 前記容器に前記液晶パネルを挿入した後、前記挿入口を
塞ぐとともに、前記液晶パネルと前記ケーブルの結合部
を固定する硬化樹脂と、 前記第１，第２の偏光板及び前記硬化樹脂によって形成
される前記容器の内部空間に注入された透光性冷却媒体
と、 前記冷却媒体の温度変化による体積変化を吸収するた
め、前記容器に設けた圧力弁と、 前記容器の熱を外部に放散するための放熱板とを具備し
たことを特徴とする液晶表示装置。6. A liquid crystal panel disposed on an optical axis of light from a light source, a cable coupled to the liquid crystal panel for supplying a signal to the liquid crystal panel, and an incident side of the liquid crystal panel on the optical axis. First and second polarizers disposed on the light-exiting side, respectively, and an insertion port disposed on the optical axis and capable of inserting the liquid crystal panel, and windows facing the incident side and the exit side, respectively. And a container in which the entrance-side window and the exit-side window are closed with the first and second polarizing plates, respectively, and after inserting the liquid crystal panel into the container, close the insertion port, A cured resin for fixing a joint between the liquid crystal panel and the cable; a light-transmissive cooling medium injected into an inner space of the container formed by the first and second polarizing plates and the cured resin; Due to the temperature change of the cooling medium A liquid crystal display device comprising: a pressure valve provided in the container to absorb a change in volume; and a radiator plate for dissipating heat of the container to the outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000192361A JP2002006282A (en) | 2000-06-27 | 2000-06-27 | Liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000192361A JP2002006282A (en) | 2000-06-27 | 2000-06-27 | Liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002006282A true JP2002006282A (en) | 2002-01-09 |
Family
ID=18691505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000192361A Pending JP2002006282A (en) | 2000-06-27 | 2000-06-27 | Liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002006282A (en) |
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