JPH04317024A - Cooling device for liquid crystal panel - Google Patents
Cooling device for liquid crystal panelInfo
- Publication number
- JPH04317024A JPH04317024A JP3084059A JP8405991A JPH04317024A JP H04317024 A JPH04317024 A JP H04317024A JP 3084059 A JP3084059 A JP 3084059A JP 8405991 A JP8405991 A JP 8405991A JP H04317024 A JPH04317024 A JP H04317024A
- Authority
- JP
- Japan
- Prior art keywords
- liquid
- liquid crystal
- heat
- crystal panel
- cooling unit
- 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
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 61
- 238000001816 cooling Methods 0.000 title claims abstract description 59
- 239000007788 liquid Substances 0.000 claims abstract description 46
- 239000011521 glass Substances 0.000 claims abstract description 37
- 230000005855 radiation Effects 0.000 claims abstract description 36
- 239000000110 cooling liquid Substances 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 11
- 238000010521 absorption reaction Methods 0.000 claims abstract description 5
- 230000020169 heat generation Effects 0.000 claims abstract description 4
- 230000017525 heat dissipation Effects 0.000 claims description 16
- 239000002470 thermal conductor Substances 0.000 claims description 4
- 239000004020 conductor Substances 0.000 abstract description 7
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- TXEYQDLBPFQVAA-UHFFFAOYSA-N tetrafluoromethane Chemical compound FC(F)(F)F TXEYQDLBPFQVAA-UHFFFAOYSA-N 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Landscapes
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Liquid Crystal (AREA)
- Projection Apparatus (AREA)
- Transforming Electric Information Into Light Information (AREA)
- Video Image Reproduction Devices For Color Tv Systems (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は液晶パネル用冷却装置に
関するものであり、特に投写型液晶プロジェクタに用い
られる液晶パネルの冷却装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling device for a liquid crystal panel, and more particularly to a cooling device for a liquid crystal panel used in a projection type liquid crystal projector.
【０００２】0002
【従来の技術】液晶パネルを用いた液晶プロジェクタと
して、特開昭６１−１５０４８７号（Ｈ０４Ｎ ９／
３１）、特開昭６４−７４５８５号（Ｇ０９Ｆ９／００
）等が提案されている。[Prior Art] A liquid crystal projector using a liquid crystal panel is disclosed in Japanese Patent Application Laid-open No. 150487/1987 (H04N 9/
31), JP-A-64-74585 (G09F9/00
) etc. have been proposed.
【０００３】液晶プロジェクタの光学系の一例を図９に
示す。FIG. 9 shows an example of the optical system of a liquid crystal projector.
【０００４】該プロジェクタはケースの前壁に投写レン
ズ１０、ケース内の奥方に光源（リフレクタ含）１１が
配備されている。The projector is provided with a projection lens 10 on the front wall of the case, and a light source (including a reflector) 11 at the back of the case.
【０００５】光源１１からの光の内、青色光は素通りし
て青色液晶パネル１２に向かう。緑色光は光軸上の緑色
光ダイクロイックミラー１３によって分光された後、反
射板１４ａにて反射され、緑色液晶パネル１５に向かう
。赤色光は赤色光ダイクロイックミラー１６ａによって
分光された後、赤色液晶パネル１７に向かう。光が各液
晶パネル１２，１５，１７によって画像情報により変調
された後、反射板１４ｂ及び投写レンズ１０側の赤色光
ダイクロイックミラー１６ｂ及び青色光ダイクロイック
ミラー１８によって合成され、投写レンズ１０を介して
スクリーン（図示略）に画像が映し出される。Of the light from the light source 11 , blue light passes through and heads toward the blue liquid crystal panel 12 . After the green light is separated by a green light dichroic mirror 13 on the optical axis, it is reflected by a reflection plate 14a and directed toward a green liquid crystal panel 15. The red light is separated by a red light dichroic mirror 16a and then directed to a red liquid crystal panel 17. After the light is modulated by the image information by each liquid crystal panel 12, 15, 17, it is combined by the reflection plate 14b, the red light dichroic mirror 16b and the blue light dichroic mirror 18 on the projection lens 10 side, and is transmitted to the screen via the projection lens 10. An image is projected on (not shown).
【０００６】なお、１９ａ，１９ｂ，１９ｃはレンズで
あり、２０は熱線フィルタである。Note that 19a, 19b, and 19c are lenses, and 20 is a heat ray filter.
【０００７】上記液晶プロジェクタは高輝度の光を照射
するため、液晶パネル１２，１５，１７の温度は相当上
昇する。Since the liquid crystal projector irradiates high-intensity light, the temperature of the liquid crystal panels 12, 15, and 17 rises considerably.
【０００８】液晶パネルの温度上昇を防止する方法を大
別すると、空冷式と液冷式がある。空冷式は熱伝達量が
液冷式に比べて少なく、またファンによる騒音の問題も
あるため、液冷式が優れている。[0008] Methods for preventing a rise in temperature of a liquid crystal panel can be broadly classified into air cooling methods and liquid cooling methods. Air-cooled systems transfer less heat than liquid-cooled systems, and there is also the issue of fan noise, so liquid-cooled systems are superior.
【０００９】液冷式の液晶プロジェクタの液晶パネル部
分を図１０、図１１に示す。The liquid crystal panel portion of a liquid-cooled liquid crystal projector is shown in FIGS. 10 and 11.
【００１０】液晶パネル５の片側にヒートパイプ６を備
えるフラット型冷却ユニット４を接着固定する。A flat type cooling unit 4 equipped with a heat pipe 6 is adhesively fixed to one side of the liquid crystal panel 5.
【００１１】冷却ユニット４は、フラット型ガラス容器
内部に液体冷媒３を収容し、上部に放熱フィン７を突設
している。The cooling unit 4 houses a liquid refrigerant 3 inside a flat glass container, and has radiation fins 7 projecting from the top.
【００１２】0012
【発明が解決しようとする課題】本発明は、液冷式の液
晶パネル用冷却装置の改良に関するものであり、放熱フ
ィンによる放熱効果の改善に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a liquid-cooled liquid crystal panel cooling device, and more particularly, to an improvement in the heat dissipation effect using heat dissipation fins.
【００１３】[0013]
【課題を解決するための手段】本発明は第１の実施例の
場合、液晶パネルと、２枚のガラスパネルと枠体にて封
止される空間に冷却液を封入することにより構成され、
且つ前記液晶パネルのどちらか一方の側面の少なくとも
有効画面領域全面にわたって当接される液冷ユニットと
、前記液冷ユニットの有効画面領域外において、該液冷
ユニットに当接される放熱用ヘッダと、前記放熱用ヘッ
ダの熱を外部へ放出するための放熱フィンと、を備え、
前記放熱用ヘッダと放熱フィンとの間にペルチエ（Ｐｅ
ｌｔｉｅｒ）素子を配設するとともに、前記放熱フィン
に該ペルチエ素子の発熱側を当接し、且つ前記放熱用ヘ
ッダに該ペルチエ素子の吸熱側を当接することを特徴と
する液晶パネル用冷却装置である。[Means for Solving the Problems] In a first embodiment of the present invention, a cooling liquid is sealed in a space sealed by a liquid crystal panel, two glass panels, and a frame.
and a liquid cooling unit that comes into contact with at least the entire effective screen area of either side of the liquid crystal panel, and a heat dissipation header that comes into contact with the liquid cooling unit outside the effective screen area of the liquid cooling unit. , comprising a heat radiation fin for discharging heat of the heat radiation header to the outside,
Peltier (Pe) is used between the heat radiation header and the heat radiation fins.
A cooling device for a liquid crystal panel, characterized in that a heating side of the Peltier element is disposed, a heat generating side of the Peltier element is brought into contact with the heat radiation fins, and a heat absorption side of the Peltier element is brought into contact with the heat radiation header. .
【００１４】また、第２、第３の実施例の場合、液晶パ
ネルと、２枚のガラスパネルと枠体にて封止される空間
に冷却液を封入することにより構成され、且つ前記液晶
パネルのどちらか一方の側面の少なくとも有効画面領域
全面にわたって当接される液冷ユニットと、前記液冷ユ
ニットの有効画面領域外において、該液冷ユニットに当
接される放熱用ヘッダと、前記放熱用ヘッダの熱を外部
へ放出するための放熱フィンと、を備え、前記液冷ユニ
ットを構成する枠体はその一部もしくは全部がガラス材
よりも熱伝導率の高い熱伝導体で形成されることを特徴
とする液晶パネル用冷却装置である。Further, in the case of the second and third embodiments, the liquid crystal panel is constructed by filling a cooling liquid in a space sealed by a liquid crystal panel, two glass panels, and a frame, and the liquid crystal panel is a liquid cooling unit that abuts over at least the entire effective screen area of either side of the liquid cooling unit; a heat radiation header that abuts the liquid cooling unit outside the effective screen area of the liquid cooling unit; radiating fins for radiating heat from the header to the outside, and the frame forming the liquid cooling unit is partially or entirely formed of a thermal conductor having higher thermal conductivity than glass material. This is a cooling device for liquid crystal panels characterized by:
【００１５】また、第４の実施例の場合、液晶パネルと
、２枚のガラスパネル及び枠体にて封止される空間に冷
却液を封入することにより構成され、且つ前記液晶パネ
ルのどちらか一方の側面の少なくとも有効画面領域全面
にわたって当接される液冷ユニットと、前記液冷ユニッ
トの有効画面領域外において、該液冷ユニットに当接さ
れる放熱用ヘッダと、前記放熱用ヘッダの熱を外部へ放
出するための放熱フィンと、を備え、前記液冷ユニット
を構成する少なくとも一方のガラスパネルの冷却液側の
全面にわたって、ガラス材よりも熱伝導率が高く、且つ
略透明の熱伝導膜を添着することを特徴とする液晶パネ
ル用冷却装置である。Further, in the case of the fourth embodiment, the liquid crystal panel is constructed by filling a cooling liquid in a space sealed by a liquid crystal panel, two glass panels, and a frame, and either of the liquid crystal panels is a liquid cooling unit that is in contact with at least the entire effective screen area of one side surface; a heat radiation header that is in contact with the liquid cooling unit outside the effective screen area of the liquid cooling unit; and a heat radiation header that is in contact with the liquid cooling unit outside the effective screen area of the liquid cooling unit; and a heat dissipation fin for discharging heat to the outside, and the entire surface of the cooling liquid side of at least one glass panel constituting the liquid cooling unit has a higher thermal conductivity than a glass material and is substantially transparent. This is a cooling device for a liquid crystal panel characterized by attaching a film.
【００１６】さらに、第５の実施例の場合、液晶パネル
と、２枚のガラスパネル及び枠体にて封止される空間に
冷却液を封入することにより構成され、且つ前記液晶パ
ネルのどちらか一方の側面の少なくとも有効画面領域全
面にわたって当接される液冷ユニットと、前記液冷ユニ
ットの有効画面領域外において、該液冷ユニットに当接
される放熱用ヘッダと、前記放熱用ヘッダの熱を外部へ
放出するための放熱フィンと、を備え、前記液冷ユニッ
トを構成するガラスパネルの少なくとも一方の有効画面
領域外の冷却液側の一部もしくは全部にガラス材よりも
熱伝導率の高い熱伝導膜を添着することを特徴とする液
晶パネル用冷却装置である。Furthermore, in the case of the fifth embodiment, the cooling liquid is sealed in a space sealed by a liquid crystal panel, two glass panels, and a frame, and either of the liquid crystal panels is a liquid cooling unit that is in contact with at least the entire effective screen area of one side surface; a heat radiation header that is in contact with the liquid cooling unit outside the effective screen area of the liquid cooling unit; and a heat radiation header that is in contact with the liquid cooling unit outside the effective screen area of the liquid cooling unit; radiation fins for discharging the liquid to the outside, and a part or all of the cooling liquid side outside the effective screen area of at least one of the glass panels constituting the liquid cooling unit has a higher thermal conductivity than a glass material. This is a cooling device for a liquid crystal panel characterized by attaching a heat conductive film.
【００１７】[0017]
【作用】本発明は上述の如く構成されているため、ペル
チエ素子により、放熱効果が改善される。また、液冷ユ
ニットの一部に熱伝導体もしくは熱伝導膜を用いること
により、熱は従来例より効率よく放熱フィンへ伝導する
。[Operation] Since the present invention is constructed as described above, the heat dissipation effect is improved by the Peltier element. In addition, by using a heat conductor or a heat conductive film in a part of the liquid cooling unit, heat is conducted to the radiation fins more efficiently than in the conventional example.
【００１８】[0018]
【実施例】以下、本発明の実施例を図面に基づいて説明
する。Embodiments Hereinafter, embodiments of the present invention will be explained based on the drawings.
【００１９】図１は本発明の第１の実施例を示す、液晶
プロジェクタ内の液晶パネル部分の要部斜視図、図２は
同要部断面図である。FIG. 1 is a perspective view of a main part of a liquid crystal panel in a liquid crystal projector, showing a first embodiment of the present invention, and FIG. 2 is a sectional view of the main part.
【００２０】２枚のガラスパネル１ａ，１ｂ、及び枠ガ
ラス２にて構成された容器に冷却液３、例えばエチレン
グリコール、パーフロロカーボン液若しくはシリコーン
オイル等の電気絶縁性の良好な液体を封入した液冷ユニ
ット４を液晶パネル５の有効画面領域全面にわたって当
接する。この液冷ユニット４の有効画面領域外の上部に
は、金属製の放熱用ヘッダ６及び放熱フィン７が取付け
られている。A cooling liquid 3, for example a liquid with good electrical insulation such as ethylene glycol, perfluorocarbon liquid or silicone oil, is sealed in a container made up of two glass panels 1a, 1b and a frame glass 2. The cooling unit 4 is brought into contact with the entire effective screen area of the liquid crystal panel 5. A metal heat radiation header 6 and heat radiation fins 7 are attached to the upper part of the liquid cooling unit 4 outside the effective screen area.
【００２１】第１の実施例の特徴は、この放熱用ヘッダ
６と放熱フィン７との間に、ペルチエ素子８を配設し、
熱の伝達効率を高めた点にある。ペルチエ素子８は熱電
冷却素子であり、素子に電流を印加すると、片側で熱を
吸収し、反対側で熱を発生する素子であり、電流を逆向
きに印加すると、吸熱側、発熱側は反対になる性質を持
つ。上述の実施例において、放熱フィン７が発熱側、放
熱用ヘッダ６が吸熱側となるように、このペルチエ素子
８に電流を印加すればよい。The feature of the first embodiment is that a Peltier element 8 is disposed between the heat radiation header 6 and the heat radiation fin 7,
The reason is that the heat transfer efficiency has been increased. The Peltier element 8 is a thermoelectric cooling element, and when a current is applied to the element, it absorbs heat on one side and generates heat on the other side.When a current is applied in the opposite direction, the heat absorption side and the heat generation side are opposite. It has the property of becoming. In the above embodiment, it is sufficient to apply a current to the Peltier element 8 so that the heat radiation fins 7 are on the heat generation side and the heat radiation header 6 is on the heat absorption side.
【００２２】図３は本発明の第２の実施例を示す、液晶
プロジェクタ内の液晶パネル部分の要部斜視図、図４は
同要部断面図である。FIG. 3 is a perspective view of a main part of a liquid crystal panel in a liquid crystal projector, showing a second embodiment of the present invention, and FIG. 4 is a sectional view of the main part.
【００２３】本発明の第２の実施例の特徴は、枠ガラス
２の一部にガラス材よりも熱伝導率の高い熱伝導体を設
けた点にある。The feature of the second embodiment of the present invention is that a part of the frame glass 2 is provided with a thermal conductor having higher thermal conductivity than the glass material.
【００２４】図３、図４において、放熱用ヘッダ６をこ
の熱伝導体で作製して枠ガラス２の一部とし、冷却液３
に直接接触させている。さらに、第１の実施例と同様、
この放熱用ヘッダ６と放熱フィン７との間にペルチエ素
子８を配設することにより、熱の伝達を効率よく行う。
この熱伝導体としてはアルミニウム、銅、ステンレス等
の金属もしくはその合金等が適当であり、液晶パネル５
の有効画面領域外に配設される。In FIGS. 3 and 4, a heat dissipation header 6 is made of this heat conductor and becomes part of the frame glass 2, and a cooling liquid 3 is made of the heat conductor.
is in direct contact with. Furthermore, similar to the first embodiment,
By disposing the Peltier element 8 between the heat dissipation header 6 and the heat dissipation fins 7, heat is efficiently transferred. As this heat conductor, metals such as aluminum, copper, stainless steel, or alloys thereof are suitable, and the liquid crystal panel 5
placed outside the effective screen area.
【００２５】また、図５、図６に示す第３の実施例の如
く、枠体２全部をこの熱伝導体にて形成してもよい。こ
の時、前述の如く、放熱用ヘッダ６と放熱フィン７との
間にペルチエ素子８を配設してもよいし、図５、図６の
ように枠体２、放熱用ヘッダ６及び放熱フィン７を熱伝
導体で一体形成してもよい。Furthermore, as in the third embodiment shown in FIGS. 5 and 6, the entire frame 2 may be formed of this thermal conductor. At this time, as described above, the Peltier element 8 may be arranged between the heat dissipation header 6 and the heat dissipation fin 7, or as shown in FIGS. 7 may be integrally formed with a heat conductor.
【００２６】図７は本発明の第４の実施例を示す、液晶
プロジェクタ内の液晶パネル部分の要部斜視図、図８は
同要部断面図である。FIG. 7 is a perspective view of a main part of a liquid crystal panel in a liquid crystal projector, showing a fourth embodiment of the present invention, and FIG. 8 is a sectional view of the main part.
【００２７】本発明の特徴は、ガラスパネル１ａ，１ｂ
の冷却液３側に、ガラス材よりも熱伝導率の高い熱伝導
膜９ａ，９ｂを設けた点にある。この熱伝導膜９ａ，９
ｂは冷却液３に直接接触しているため、熱の伝達を効率
よく行うことができる。この時、透明の熱伝導膜９ａ，
９ｂを蒸着あるいは塗布等で作製すれば、ガラスパネル
１ａ，１ｂの有効画面領域全面に設けることができる。The feature of the present invention is that the glass panels 1a, 1b
This is because thermally conductive films 9a and 9b, which have higher thermal conductivity than glass material, are provided on the cooling liquid 3 side. These thermally conductive films 9a, 9
Since b is in direct contact with the coolant 3, heat can be transferred efficiently. At this time, the transparent heat conductive film 9a,
If the film 9b is produced by vapor deposition or coating, it can be provided over the entire effective screen area of the glass panels 1a, 1b.
【００２８】また、請求項４に記載の第５の実施例とし
て、上述の熱伝導膜９ａ，９ｂに不透明な物質（例えば
前述の熱伝導体として使用した金属もしくは合金の膜）
を用いる場合は、この熱伝導膜９ａ，９ｂをガラスパネ
ル１ａ，１ｂの有効画面領域外、例えばガラスパネル１
ａ，１ｂの有効画面領域の外周部に、冷却液３と直接接
触するように設けるとよい（図示略）。Further, as a fifth embodiment according to claim 4, the above-mentioned heat conductive films 9a and 9b are made of an opaque material (for example, the metal or alloy film used as the above-mentioned heat conductor).
When using the heat conductive films 9a and 9b, the heat conductive films 9a and 9b are placed outside the effective screen area of the glass panels 1a and 1b, for example, the glass panel 1.
It is preferable to provide the cooling liquid 3 at the outer periphery of the effective screen area a and 1b so as to be in direct contact with the cooling liquid 3 (not shown).
【００２９】なお、本発明では、液冷ユニット４は２枚
のガラスパネル１ａ，１ｂと枠体２とを使用して冷却液
を封入する容器を形成しているが、枠体の一部もしくは
全部をガラスパネルと一体形成してから開口部を封止し
て形成してもよい。In the present invention, the liquid cooling unit 4 uses the two glass panels 1a and 1b and the frame 2 to form a container for enclosing the cooling liquid. The entire structure may be formed integrally with a glass panel and then the opening portion may be sealed.
【００３０】[0030]
【発明の効果】本発明は上述の如く構成されているため
、熱の伝導効率が従来例に比べ、はるかに高くすること
ができる。その結果、液晶パネルの放熱を効果的に行う
ことができ、液晶プロジェクタの高輝度化が可能になる
。[Effects of the Invention] Since the present invention is constructed as described above, the heat conduction efficiency can be made much higher than that of the conventional example. As a result, heat can be effectively dissipated from the liquid crystal panel, making it possible to increase the brightness of the liquid crystal projector.
【図１】第１の実施例の要部斜視図である。FIG. 1 is a perspective view of essential parts of a first embodiment.
【図２】同要部断面図である。FIG. 2 is a cross-sectional view of the same essential parts.
【図３】第２の実施例の要部斜視図である。FIG. 3 is a perspective view of essential parts of a second embodiment.
【図４】同要部断面図である。FIG. 4 is a cross-sectional view of the same essential parts.
【図５】第４の実施例の要部斜視図である。FIG. 5 is a perspective view of essential parts of a fourth embodiment.
【図６】同要部断面図である。FIG. 6 is a cross-sectional view of the same essential parts.
【図７】第５の実施例の要部斜視図である。FIG. 7 is a perspective view of essential parts of a fifth embodiment.
【図８】同要部断面図である。FIG. 8 is a sectional view of the main part.
【図９】液晶プロジェクタの概要図である。FIG. 9 is a schematic diagram of a liquid crystal projector.
【図１０】従来の要部斜視図である。FIG. 10 is a perspective view of a conventional main part.
【図１１】同要部断面図である。FIG. 11 is a cross-sectional view of the same essential parts.
１ａ，１ｂ ガラスパネル ２ 枠体 ３ 冷却液 ４ 液冷ユニット ５ 液晶パネル ６ 放熱用ヘッダ ７ 放熱フィン ８ ペルチエ素子 ９ａ，９ｂ 熱伝導膜 1a, 1b Glass panel 2 Frame body 3 Cooling liquid 4 Liquid cooling unit 5. LCD panel 6 Heat dissipation header 7 Heat dissipation fins 8 Peltier element 9a, 9b Heat conductive film
Claims (4)
枠体にて封止される空間に冷却液を封入することにより
構成され、且つ前記液晶パネルのどちらか一方の側面の
少なくとも有効画面領域全面にわたって当接される液冷
ユニットと、前記液冷ユニットの有効画面領域外におい
て、該液冷ユニットに当接される放熱用ヘッダと、前記
放熱用ヘッダの熱を外部へ放出するための放熱フィンと
、を備え、前記放熱用ヘッダと放熱フィンとの間にペル
チエ素子を配設するとともに、前記放熱フィンに該ペル
チエ素子の発熱側を当接し、且つ前記放熱用ヘッダに該
ペルチエ素子の吸熱側を当接することを特徴とする液晶
パネル用冷却装置。1. A liquid crystal panel comprising a liquid crystal panel, a space sealed by two glass panels and a frame body, and a cooling liquid sealed in the space, and at least an effective screen area on either side of the liquid crystal panel. A liquid cooling unit that is in contact with the entire surface, a heat radiation header that is in contact with the liquid cooling unit outside the effective screen area of the liquid cooling unit, and a heat radiation for releasing heat of the heat radiation header to the outside. fins, a Peltier element is disposed between the heat dissipation header and the heat dissipation fin, the heat generation side of the Peltier element is brought into contact with the heat dissipation fin, and the heat absorption side of the Peltier element is brought into contact with the heat dissipation header. A cooling device for a liquid crystal panel characterized in that the sides are in contact with each other.
枠体にて封止される空間に冷却液を封入することにより
構成され、且つ前記液晶パネルのどちらか一方の側面の
少なくとも有効画面領域全面にわたって当接される液冷
ユニットと、前記液冷ユニットの有効画面領域外におい
て、該液冷ユニットに当接される放熱用ヘッダと、前記
放熱用ヘッダの熱を外部へ放出するための放熱フィンと
、を備え、前記液冷ユニットを構成する枠体はその一部
もしくは全部がガラス材よりも熱伝導率の高い熱伝導体
で形成されることを特徴とする液晶パネル用冷却装置。2. A liquid crystal panel comprising a liquid crystal panel, a space sealed by two glass panels and a frame body, and a cooling liquid sealed in the space, and at least an effective screen area on either side of the liquid crystal panel. A liquid cooling unit that is in contact with the entire surface, a heat radiation header that is in contact with the liquid cooling unit outside the effective screen area of the liquid cooling unit, and a heat radiation for releasing heat of the heat radiation header to the outside. A cooling device for a liquid crystal panel, characterized in that a frame body constituting the liquid cooling unit is partially or entirely formed of a thermal conductor having higher thermal conductivity than a glass material.
び枠体にて封止される空間に冷却液を封入することによ
り構成され、且つ前記液晶パネルのどちらか一方の側面
の少なくとも有効画面領域全面にわたって当接される液
冷ユニットと、前記液冷ユニットの有効画面領域外にお
いて、該液冷ユニットに当接される放熱用ヘッダと、前
記放熱用ヘッダの熱を外部へ放出するための放熱フィン
と、を備え、前記液冷ユニットを構成する少なくとも一
方のガラスパネルの冷却液側の全面にわたって、ガラス
材よりも熱伝導率が高く、且つ略透明の熱伝導膜を添着
することを特徴とする液晶パネル用冷却装置。3. A liquid crystal panel comprising a liquid crystal panel, a space sealed by two glass panels and a frame body with a cooling liquid sealed therein, and comprising at least an effective screen area on either side of the liquid crystal panel. A liquid cooling unit that is in contact with the entire surface, a heat radiation header that is in contact with the liquid cooling unit outside the effective screen area of the liquid cooling unit, and a heat radiation for releasing heat of the heat radiation header to the outside. fins, and a substantially transparent thermally conductive film having higher thermal conductivity than the glass material is attached over the entire surface of the cooling liquid side of at least one of the glass panels constituting the liquid cooling unit. A cooling device for liquid crystal panels.
び枠体にて封止される空間に冷却液を封入することによ
り構成され、且つ前記液晶パネルのどちらか一方の側面
の少なくとも有効画面領域全面にわたって当接される液
冷ユニットと、前記液冷ユニットの有効画面領域外にお
いて、該液冷ユニットに当接される放熱用ヘッダと、前
記放熱用ヘッダの熱を外部へ放出するための放熱フィン
と、を備え、前記液冷ユニットを構成するガラスパネル
の少なくとも一方の有効画面領域外の冷却液側の一部も
しくは全部にガラス材よりも熱伝導率の高い熱伝導膜を
添着することを特徴とする液晶パネル用冷却装置。4. A liquid crystal panel comprising a liquid crystal panel, a space sealed by two glass panels and a frame body, and a cooling liquid sealed in the space, and at least an effective screen area on either side of the liquid crystal panel. A liquid cooling unit that is in contact with the entire surface, a heat radiation header that is in contact with the liquid cooling unit outside the effective screen area of the liquid cooling unit, and a heat radiation for releasing heat of the heat radiation header to the outside. fins, and a thermally conductive film having higher thermal conductivity than the glass material is attached to a part or all of the cooling liquid side outside the effective screen area of at least one of the glass panels constituting the liquid cooling unit. Characteristic cooling device for liquid crystal panels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3084059A JPH04317024A (en) | 1991-04-16 | 1991-04-16 | Cooling device for liquid crystal panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3084059A JPH04317024A (en) | 1991-04-16 | 1991-04-16 | Cooling device for liquid crystal panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04317024A true JPH04317024A (en) | 1992-11-09 |
Family
ID=13819926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3084059A Pending JPH04317024A (en) | 1991-04-16 | 1991-04-16 | Cooling device for liquid crystal panel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04317024A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002116503A (en) * | 2000-10-06 | 2002-04-19 | Seiko Epson Corp | Projector |
| EP1341028A1 (en) * | 2000-12-08 | 2003-09-03 | Sony Corporation | Liquid crystal display device and liquid crystal projector device |
| KR100691056B1 (en) * | 2003-10-07 | 2007-03-09 | 세이코 엡슨 가부시키가이샤 | Optical device and rear projector |
| JP2007322905A (en) * | 2006-06-02 | 2007-12-13 | Sony Corp | Planar light source device and liquid crystal display device assembly |
| KR100826008B1 (en) * | 2001-07-26 | 2008-04-29 | 엘지디스플레이 주식회사 | Radiating apparatus |
| CN109584756A (en) * | 2018-11-19 | 2019-04-05 | 湖南全望信息科技有限公司 | Information exhibition board is used in a kind of consulting of real estate information |
-
1991
- 1991-04-16 JP JP3084059A patent/JPH04317024A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002116503A (en) * | 2000-10-06 | 2002-04-19 | Seiko Epson Corp | Projector |
| EP1341028A1 (en) * | 2000-12-08 | 2003-09-03 | Sony Corporation | Liquid crystal display device and liquid crystal projector device |
| EP1341028A4 (en) * | 2000-12-08 | 2006-05-10 | Sony Corp | Liquid crystal display device and liquid crystal projector device |
| US7123334B2 (en) | 2000-12-08 | 2006-10-17 | Sony Corporation | Liquid crystal display device and liquid crystal projector device |
| KR100826008B1 (en) * | 2001-07-26 | 2008-04-29 | 엘지디스플레이 주식회사 | Radiating apparatus |
| KR100691056B1 (en) * | 2003-10-07 | 2007-03-09 | 세이코 엡슨 가부시키가이샤 | Optical device and rear projector |
| JP2007322905A (en) * | 2006-06-02 | 2007-12-13 | Sony Corp | Planar light source device and liquid crystal display device assembly |
| CN109584756A (en) * | 2018-11-19 | 2019-04-05 | 湖南全望信息科技有限公司 | Information exhibition board is used in a kind of consulting of real estate information |
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