CN1820226A - Liquid crystal projector, its liquid crystal panel, and its liquid cooler - Google Patents
Liquid crystal projector, its liquid crystal panel, and its liquid cooler Download PDFInfo
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- CN1820226A CN1820226A CN 200580000665 CN200580000665A CN1820226A CN 1820226 A CN1820226 A CN 1820226A CN 200580000665 CN200580000665 CN 200580000665 CN 200580000665 A CN200580000665 A CN 200580000665A CN 1820226 A CN1820226 A CN 1820226A
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 356
- 239000007788 liquid Substances 0.000 title claims abstract description 151
- 239000003507 refrigerant Substances 0.000 claims abstract description 93
- 238000001816 cooling Methods 0.000 claims abstract description 71
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 15
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- 230000000243 photosynthetic effect Effects 0.000 claims description 6
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- 239000002826 coolant Substances 0.000 description 8
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Abstract
A liquid crystal projector, a liquid crystal panel, and a liquid cooler for cooling efficiently by a liquid cooling cycle to realize no disorder of a video image thanks to liquid refrigerant passing over the translucent surface of the liquid crystal panel. Light from a light source (112) is divided into three parallel beams, which are passed through liquid crystal panels (101(R), 101(G) and 101(B)) of R, G and B and subjected to intensity modulation. The modulated beams are combined in color by a combining prism (119) and projected through a projection lens (127) to obtain a video image. In such a liquid crystal projector, each liquid crystal panel (101) has a high-resistance channel of liquid refrigerant between protective glass plates (4, 5) disposed oppositely to an opposing substrate (1) and a TFT substrate (2) constituting the liquid crystal panel, and further has a buffer part contiguously thereto or has a low-resistance auxiliary channel around the periphery thereof. Each channel consists of a channel having a uniform thickness of ''D'' and covering the flat liquid crystal panel region, channels having a smaller thickness of ''d'' provided upstream and downstream therefrom, and buffer channels provided further upstream and downstream therefrom.
Description
Technical field
The present invention relates to light that light source sends by being called light valve liquid crystal panel and projecting lens, with the liquid crystal projector of image projection on screen, particularly relate to the structure of employed liquid crystal panel in the above-mentioned liquid crystal projector and by the liquid cooling apparatus of liquid refrigerant with above-mentioned liquid crystal panel cooling.
Background technology
In recent years, for example with in the projection arrangement (being designated hereinafter simply as " projector ") that shows after the expansion/projections such as coloured image picture on the PC, be extensive use of following apparatus: the photolysis that light sources such as metal halide lamp are sent is 3 directions, modulate its light intensity by R, G or B three primary colors with liquid crystal panel respectively and by look synthetic prisms etc. synthetic after, project on the screen by projecting lens etc.
And, in the above-mentioned projector, increase the pixel count (height becomes more meticulous) of its liquid crystal panel for the fine degree that improves the projected picture that obtains, simultaneously, be accompanied by the maximization of display frame etc., make every effort to high illuminationization (for example using the metal halide lamp of power) more than or equal to 250W as the lamp of its light emitting source.Therefore, the heat sent of the light emitting source of above-mentioned high illumination becomes problem.Especially in the projector of said structure, the light that light emitting source sends shines R, G or B three primary colors respectively with on the liquid crystal panel, on this surface, modulate/pass through, when so the light intensity of above-mentioned light emitting source (brightness) rises, heating in these liquid crystal panels is also risen, and causes bad influence for the characteristic of liquid crystal panel.
In the past, in the above-mentioned projector, generally, prevent the influence that it is bad for the temperature in the each several part (especially lamp and control part etc.) of the device that prevents to contain above-mentioned liquid crystal panel rises, the air cooling fan is set, makes cooling air outside to enclosure importing/circulation thus from installing.But, as above-mentioned, be accompanied by the rising of the light intensity of light emitting source in recent years, only use by above-mentioned air cooling fan cooling air is imported and the round-robin method to device inside, be difficult to fully control the heating in the liquid crystal panel.
Therefore; as disclosed in the following patent documentation 1～15; following method has been proposed: for example, form the inner space, simultaneously at liquid refrigerants such as this interior volume sealing water by polaroid and glass plate on the other side; utilize the heating of this liquid crystal panel; the liquid refrigerant of above-mentioned sealing is circulated in interior volume, and thus, the caused temperature of light that is subjected to that suppresses liquid crystal panel rises; the protection liquid crystal panel makes it the bad influence that is not subjected to temperature to rise and bring.In addition, following cooling structure is also disclosed in for example following patent document 11: surround the light compositing prism by R, G and B three primary colors with liquid crystal panel integral body, at the inner space sealing cold-producing medium that forms, simultaneously, be immersed in the cooled containers that its part has stirring apparatus and cool off.And as following patent documentation 15 in following method also disclosed: seal cold-producing medium in the space that between above-mentioned liquid crystal panel and the polaroid that is arranged on its front and back, forms, between the space before and after these liquid crystal panels, form simultaneously and connect runner, utilize pump etc. again, the cold-producing medium that interior volume is filled, circulation energetically.
As mentioned above, seal fluid cold-producing medium in the part of liquid crystal panel, utilize the convection current that heating produced of this liquid crystal panel that the liquid refrigerant of inner sealing is circulated, perhaps make it energetically in the round-robin method by stirring apparatus and pump etc., by the circulation that is sealed in the liquid refrigerant in the liquid crystal panel, can realize the cooling of liquid crystal panel more effectively.But, consider the adstante febre of the liquid crystal panel that the remarkable rising of the light intensity (brightness) of light source in the projector is in recent years followed, still abundant inadequately.Therefore, disclosed method in for example following patent documentation 16～19, at above-mentioned R, G and the B three primary colors runner that forms liquid refrigerant in the liquid crystal panel, simultaneously at its outer setting heat exchanger, be provided with again and utilize ebullator to make liquid refrigerant round-robin cool cycles, by liquid refrigerants such as water are circulated in this cool cycles, in above-mentioned liquid crystal panel, can the higher cooling of implementation efficiency.And the method for above-mentioned patent documentation 19 is: form the circulation road of liquid refrigerant around above-mentioned liquid crystal panel, by cooling around it, also form the circulation road simultaneously around light emitting source, thus, make the cooling of whole projector by cool cycles.
Patent documentation 1: the spy opens flat 3-126011 communique
Patent documentation 2: the spy opens flat 4-54778 communique
Patent documentation 3: the spy opens flat 4-73733 communique
Patent documentation 4: the spy opens flat 4-291230 communique
Patent documentation 5: the spy opens flat 5-107519 communique
Patent documentation 6: the spy opens flat 5-232427 communique
Patent documentation 7: the spy opens flat 6-110040 communique
Patent documentation 8: the spy opens flat 7-248480 communique
Patent documentation 9: the spy opens flat 8-211353 communique
Patent documentation 10: the spy opens flat 11-202411 communique
Patent documentation 11: the spy opens the 2002-131737 communique
Patent documentation 12: the spy opens the 2002-214596 communique
Patent documentation 13: the spy opens the 2003-75918 communique
Patent documentation 14: the spy opens the 2003-195135 communique
Patent documentation 15: the spy opens the 2004-12934 communique
Patent documentation 16: the spy opens flat 1-159684 communique
Patent documentation 17: the spy opens flat 5-216016 communique
Patent documentation 18: the spy opens flat 5-264947 communique
Patent documentation 19: the spy opens flat 11-282361 communique
Summary of the invention
The problem that invention will solve
As mentioned above, in projector in the past, particularly owing to be accompanied by the remarkable rising of the intensity of light source (brightness) in recent years, in order to realize than make cooling air importing/circulation by air cooling fan, the cooling that efficient is higher, adopt following method: make the part of liquid refrigerant contact liquid crystal panel, make it the cooling of portion's circulation within it.And, in order to realize cooling having proposed following method more effectively: the runner that in liquid crystal panel, forms liquid refrigerant, simultaneously at its outer setting heat exchanger and ebullator, form cool cycles, thus, make the liquid refrigerant cooling that in this cool cycles, circulates.And, at this moment, in the projector,,, be starved of the reasonable flow channel structure in order to improve the cooling effectiveness of liquid refrigerant in this liquid crystal panel because the caused bad influence of heating of liquid crystal panel is very big.
In addition, in the projector of above-mentioned conventional art, as above-mentioned, the light of 3 directions that light source sends passes through R respectively, G, the B three primary colors are modulated its light intensity with liquid crystal panel, project on the screen by projecting lens etc. by synthetic back such as look synthetic prisms, on this principle, above-mentioned liquid crystal panel uses in the method for aforesaid liquid refrigerant cools, when sneaking into bubble in the liquid refrigerant of contact or the transmittance section (face) by liquid crystal panel from needless to say, and when causing density difference etc. to produce by velocity contrast and temperature difference etc. in contact or the liquid refrigerant that passes through, rock with color spot etc. by producing in the image of this liquid crystal panel projection, projected picture can get muddled.And in the above-mentioned conventional art, disclose following structure in for example above-mentioned patent documentation 17: the cool cycles at the liquid refrigerant that is used for the liquid coolant crystal panel is provided with bubble chamber, removes the bubble of sneaking in the round-robin liquid refrigerant.
But, the light that the cooling structure of the liquid crystal panel in the various projectors of the proposition in the above-mentioned various conventional art is used for 3 directions that light source sends is respectively by R, G and B three primary colors during with liquid crystal panel and by the liquid crystal projector of the mode of the synthetic back projection of prism, comprise its image projected image quality, can't say to provide to utilize to make liquid refrigerant round-robin cool cycles effectively cool off the structure of its liquid crystal panel.
Therefore, the present invention is based on that problem points in the above-mentioned conventional art proposes, purpose is to provide following liquid crystal projector: utilize to make the liquid cooling of liquid refrigerant round-robin circulate liquid coolant crystal panel effectively, be difficult to produce the density difference that causes by velocity contrast and temperature difference etc. in the liquid refrigerant by this liquid crystal panel transparent surface, therefore, can not produce bad influence, can access good projected image the image that sees through transparent surface.But also provide above-mentioned liquid crystal panel and liquid cooling apparatus thereof.
Solve the method for problem
In order to achieve the above object, according to the present invention, at first, a kind of liquid crystal projector is provided, have: light source, the light that above-mentioned light source is sent is divided into the optical element of 3 bundle light as directional light, make the 3 bundle light cut apart by above-mentioned optical element by and modulate 3 kinds of liquid crystal panels of its intensity, will be by above-mentioned 3 kinds of liquid crystal panels the photosynthetic light compositing device of 3 bundles of modulated intensity, projection is by the projection arrangement of 3 synthetic bundle light of above-mentioned light compositing device, and have and comprise liquid refrigerant is circulated in above-mentioned 3 kinds of liquid crystal panels with the liquid cooling circulation of the pump that cools off and heating radiator, it is characterized in that: in above-mentioned 3 kinds of liquid crystal panels, between face of this liquid crystal panel and the transparent component that is oppositely arranged with it, form the runner of liquid refrigerant respectively, and this runner have the consistency of thickness in the liquid crystal panel zone that covers above-mentioned liquid crystal panel and flat high-drag runner and with its upstream and downstream in the adjacent and buffer part that forms of a side.
In addition, according to the present invention, a kind of liquid crystal projector also is provided, have: light source, the light that above-mentioned light source is sent is divided into the optical element of 3 bundle light as directional light, make the 3 bundle light cut apart by above-mentioned optical element by and modulate 3 kinds of liquid crystal panels of its intensity, will be by above-mentioned 3 kinds of liquid crystal panels the photosynthetic light compositing device of 3 bundles of modulated intensity, projection is by the projection arrangement of 3 synthetic bundle light of above-mentioned light compositing device, and have and comprise liquid refrigerant is circulated in above-mentioned 3 kinds of liquid crystal panels with the liquid cooling circulation of the pump that cools off and heating radiator, it is characterized in that: in above-mentioned 3 kinds of liquid crystal panel kinds, formed the runner of liquid refrigerant respectively by face of this liquid crystal panel and the transparent component that is oppositely arranged with it, and this runner have the consistency of thickness in the liquid crystal panel zone that covers above-mentioned liquid crystal panel and flat high-drag runner and surround this high-drag runner and flow passage resistance force of waterproof than the low auxiliary flow of above-mentioned high-drag runner.
Then, according to the present invention, in order to achieve the above object, a kind of liquid crystal panel of liquid crystal projector is provided, encapsulated liquid crystals between 2 transparency carriers and forming, it is characterized in that: have at least with above-mentioned 2 transparency carriers in the transparent panel that is oppositely arranged of 1 face, form the runner of liquid refrigerant therebetween; Above-mentioned runner has formed consistency of thickness and flat high-drag runner, and has and the upstream side of above-mentioned high-drag runner and the buffer part of the side adjacency in the downstream.
And, among the present invention, provide a kind of liquid crystal panel of liquid crystal projector, encapsulated liquid crystals between 2 transparency carriers and forming, it is characterized in that: have at least with above-mentioned 2 transparency carriers in the transparent panel that is oppositely arranged of 1 face, form the runner of liquid refrigerant therebetween; Above-mentioned runner forms consistency of thickness and flat high-drag runner, and has the above-mentioned high-drag runner of encirclement and flow passage resistance force of waterproof than the low auxiliary flow of above-mentioned high-drag runner.
And, according to the present invention, in order to achieve the above object, the liquid cooling apparatus of the liquid crystal panel in a kind of liquid crystal projector is provided, the liquid crystal panel of the liquid crystal projector that utilizes liquid refrigerant to cool off encapsulated liquid crystals between 2 transparency carriers and form, it is characterized in that: have at least with above-mentioned 2 transparency carriers in the transparent panel that is oppositely arranged of 1 face, thus, form to cover therebetween the consistency of thickness in liquid crystal panel zone of above-mentioned liquid crystal panel and flat high-drag runner and with the buffer part of this runner adjacency, the heat of the above-mentioned liquid crystal panel that also has the drive unit of the liquid refrigerant that is connected with the above-mentioned buffer part of above-mentioned liquid crystal panel simultaneously and will be heated in the above-mentioned the 1st and the 2nd runner is loose to outside heat abstractor, forms the liquid cooling circulation thus.
In addition, according to the present invention, the liquid cooling apparatus of the liquid crystal panel in a kind of liquid crystal projector is provided, the liquid crystal panel of the liquid crystal projector that utilizes liquid refrigerant to cool off encapsulated liquid crystals between 2 transparency carriers and form, it is characterized in that: have at least with above-mentioned 2 transparency carriers in the transparent panel that is oppositely arranged of 1 face, thus, the consistency of thickness in the liquid crystal panel zone of the above-mentioned liquid crystal panel of formation covering therebetween and flat high-drag runner and this runner of encirclement and flow passage resistance force of waterproof are than the low auxiliary flow of above-mentioned high-drag runner, and have the drive unit of the liquid refrigerant that is connected with the above-mentioned buffer part of above-mentioned liquid crystal panel and the heat of the above-mentioned liquid crystal panel that will be heated is loose to outside heat abstractor in the above-mentioned the 1st and the 2nd runner, form the liquid cooling circulation thus.
According to the present invention, the 2nd, in order to achieve the above object, a kind of liquid crystal projector is provided, have: light source, the light that above-mentioned light source is sent is divided into the optical element of 3 bundle light as directional light, make the 3 bundle light cut apart by above-mentioned optical element by and modulate 3 kinds of liquid crystal panels of its intensity, will be by above-mentioned 3 kinds of liquid crystal panels the photosynthetic light compositing device of 3 bundles of modulated intensity, the projection arrangement of the 3 bundle light that the above-mentioned light compositing device of projection is synthesized, and have and comprise the liquid cooling that liquid refrigerant circulate in above-mentioned 3 kinds of liquid crystal panels with the pump that cools off and heating radiator is circulated; It is characterized in that: in above-mentioned 3 kinds of liquid crystal panels, formed the runner of liquid refrigerant respectively by face of this liquid crystal panel and the transparent component that is oppositely arranged with it, and this runner has the 1st runner in consistency of thickness and flat, as to cover above-mentioned liquid crystal panel liquid crystal panel zone and is arranged on a side, flow passage resistance force of waterproof 2nd runner higher than the flow passage resistance force of waterproof in above-mentioned the 1st runner in above-mentioned the 1st runner upstream and downstream.
In addition, according to the present invention, in order to achieve the above object, a kind of liquid crystal panel of liquid crystal projector is provided, the liquid crystal projector that is used for encapsulated liquid crystals between 2 transparency carriers and forms, it is characterized in that: have at least with above-mentioned 2 transparency carriers in the transparent panel that is oppositely arranged of 1 face, form the runner of liquid refrigerant therebetween; Above-mentioned runner forms consistency of thickness and the 1st flat runner in the zone in the liquid crystal panel zone that covers above-mentioned liquid crystal panel, and is provided with flow passage resistance force of waterproof 2nd runner higher than the flow passage resistance force of waterproof in above-mentioned the 1st runner in the upstream side and the side in the downstream of above-mentioned the 1st runner.
And, according to the present invention, in order to achieve the above object, the liquid cooling apparatus of the liquid crystal panel in a kind of liquid crystal projector is provided, the liquid crystal panel that the liquid crystal projector that utilizes liquid refrigerant to cool off encapsulated liquid crystals between 2 transparency carriers and form is used, it is characterized in that: have at least with above-mentioned 2 transparency carriers in the transparent panel that is oppositely arranged of 1 face, thus, form to cover the consistency of thickness in liquid crystal panel zone of above-mentioned liquid crystal panel and flat the 1st runner therebetween and be arranged in the upstream side of above-mentioned the 1st runner and a side in downstream, the 2nd runner that flow passage resistance force of waterproof is higher than the flow passage resistance force of waterproof in above-mentioned the 1st runner, and have the drive unit of the liquid refrigerant that is connected with the above-mentioned the 1st and the 2nd runner of above-mentioned liquid crystal panel and the heat of the above-mentioned liquid crystal panel that will be heated is loose to outside heat abstractor in the above-mentioned the 1st and the 2nd runner, form the liquid cooling circulation thus.
And, according to the present invention, in the liquid crystal panel of above-mentioned liquid crystal projector, liquid crystal projector and the cooling device of liquid crystal panel,, preferably have buffer part with the 2nd runner adjacency except above-mentioned the 2nd runner.
The invention effect
From the above, at first, according to liquid crystal projector of the present invention and the liquid crystal panel and the liquid cooling apparatus thereof that are used for this projector, utilization makes liquid refrigerant round-robin liquid cooling circulation, liquid coolant crystal panel effectively, simultaneously, in by the liquid refrigerant in the high-drag runner that covers its liquid crystal panel transparent surface, be difficult to produce the density difference that causes by velocity contrast and temperature difference etc., so the image of projection disorder can be do not produced, good projected image can be accessed.And, comprising its liquid crystal panel, its life-span and reliability can access good assurance, can bring into play extremely good effect.
Secondly, according to liquid crystal projector of the present invention and the liquid crystal panel and the liquid cooling apparatus thereof that are used for this projector, utilization makes liquid refrigerant round-robin liquid cooling circulation, liquid coolant crystal panel effectively, simultaneously, by covering in the liquid refrigerant in its liquid crystal panel transparent surface, be difficult to produce by caused density differences such as velocity contrast and temperature differences, the image of projection can not produce disorder, can access good projected image.And, comprising its liquid crystal panel, its life-span and reliability can access good assurance, can bring into play extremely good effect.
Embodiment
Embodiments of the present invention are described with reference to the accompanying drawings.
At first, Fig. 3 represents to have the integrally-built example of liquid crystal projector of liquid cooling apparatus of the liquid crystal panel of an embodiment of the invention.Among the figure, the shell of symbol 100 expression liquid crystal projectors, in addition as shown, its inside is provided with light emitting source, and for example metal halide lamp 112.The light that this light source 112 is sent becomes directional light output by the 1st lens arra the 113, the 2nd lens arra 114, polarization conversion device 115, the collector lens 116 that are arranged on assigned position in the above-mentioned shell.This directional light is imported into the 1st dichronic mirror 117 then, and its part imports R (red) with liquid crystal panel 101 (R) by the 1st dichronic mirror 117 by the 1st collector lens 118 backs, in this modulate light intensity, arrives light compositing prism 119 then.
In addition, the light that is reflected by above-mentioned the 1st dichronic mirror 117 is reflected on the surface of the 1st catoptron 120, incides the 2nd dichronic mirror 121.After this light that is reflected is by the 2nd collector lens 122, be imported into G (green) with liquid crystal panel 101 (G), after this modulate light intensity, arrive above-mentioned light compositing prism 119.And, light by above-mentioned the 2nd dichronic mirror 121 passes through the 2nd catoptron 123, relay lens 124, is reflected on the 3rd catoptron 125 surfaces, imports the liquid crystal panel 101 (B) of B (indigo plant) usefulness by the 3rd collector lens 126, in this modulate light intensity, arrive above-mentioned light compositing prism 119.Then, modulated the light after its light intensity by above-mentioned 3 primary colors R, G, B respectively with liquid crystal panel 101 (R), 101 (G), 101 (B), synthesize by above-mentioned light compositing prism 119, amplify by the projection optical system 127 that comprises projecting lens again, for example, project to (the thin arrow in the reference diagram) on the not shown screen.
In addition, the inner cooling fan unit that contains the engine of fan and this fan of rotation driving of symbol 131 expressions among the figure, shown in figure hollow core arrow, by air suction inlet 134 in a part of upper shed of the shell 100 of above-mentioned liquid crystal projector, extraneous air is drawn in the shell, and the heat-sink unit 130 that cooling will be explained below and electric control/driving comprise the electric component unit 128 of the each several part of R, G, B usefulness liquid crystal panel.As above-mentioned, be accompanied by the maximization of display frame etc. in recent years, high illuminationization is also very remarkable, therefore, inhaled air is also wanted near 1st lens arra 113,2nd lens arra 114, polarization conversion device 115, the collector lens 116 of cooling settings this light emitting source 112 except the metal halide lamp 112 of cooling as high illumination light emitting source, afterwards, discharge to the outside by air outlet 135 in a part of upper shed of above-mentioned shell 100.
Describe above-mentioned 3 primary colors R, G, B liquid crystal panel 101 (R), 101 (G), 101 (B) structure separately below in detail.Under the situation of the runner that has formed liquid refrigerant, the work of the electrodynamic pump 129 that has casing by shell 100 inside that are arranged on above-mentioned liquid crystal projector, its part, make liquid refrigerant shown in thick arrow black among the figure, by the pipe arrangement in the shell, according to the sequential loop of R, G, B liquid crystal panel 101 (R), 101 (G), 101 (B), electrodynamic pump 129, heat-sink unit 130, form so-called liquid cooling circulation thus.
Fig. 1 represents the detailed inner structure of a liquid crystal panel 101 in above-mentioned R, G, B liquid crystal panel 101 (R), 101 (G), 101 (B).At first, the main composition key element of symbol 2 these liquid crystal panels 101 of expression of Fig. 1 (a) of expression liquid crystal panel 101 sections, its surface forms a plurality of transistor driving elements, for example, be the TFT substrate that is made of glass, being oppositely arranged with this TFT substrate also is the relative substrate 1 that is made of glass, has sealed liquid crystal 3 then between this transparency carrier 2,1, thus, constitute the liquid crystal panel 101 of one of R, G or B three primary colors.
In addition, the symbol 4 among the figure and 5 is the so-called protection glass plate, and these cover glass plates are separately positioned on the light incident side and the exiting side of above-mentioned liquid crystal panel 101, forms the high- drag runner 6,7 of liquid refrigerant therebetween.Be provided with case 14; surround around these relative substrates 1, TFT substrate 2 and the cover glass plate 4,5; form framework, and thereon on the lower edge portion, form continuously the seam shape and width [being the transverse direction of Fig. 1 (b)] high- drag runner 6,7 identical with above-mentioned runner, adjacency.Be provided with the case shape parts 10,11 (below), 17,18 (tops) that form the buffering runner on the upper end of this case 14 and the bottom.Promptly; as represent shown in the Fig. 1 (b) of A-A section among above-mentioned Fig. 1 (a); comprise on the two sides of panel in the zone (being called " liquid crystal panel zone " later on) that forms above-mentioned liquid crystal panel 101, relatively between substrate 1 and the cover glass plate 4, form the same and flat high- drag runner 6,7 of thickness " d " [perpendicular to the direction height of Fig. 1 (b) paper] respectively between TFT substrate 2 and the cover glass plate 5.And the light incident side and the exiting side of cover glass plate 4,5 form not shown polarizing coating respectively.
And, among Fig. 1 (b), represent the flow direction of the liquid refrigerant in the above-mentioned liquid crystal panel 101 inner runners that form by arrow.In addition, Fig. 1 (a) and (b) in symbol 12,13,19,20 represent to be arranged on the importing/delivery line of the substantial middle liquid refrigerant partly of the case shape parts 10,11 (below) that form above-mentioned buffering runner, 17,18 (tops) respectively.In addition, when the part of the blacking of symbol 21 representatives among the figure represents to assemble above-mentioned parts, the so-called O-ring seal that inserts for hydraulic seal.
2 circular flows that describe liquid refrigerant above-mentioned each liquid crystal panel 101 of comprising said structure in its parts, in the liquid crystal projector of the present invention in detail with reference to the accompanying drawings.Here, among above-mentioned Fig. 3, above-mentioned R, G, B, illustrate according to series connection in driving in the running by pump 129, circulating by the liquid cooling among the heating radiator 130 round-robin figure that constitute radiating part with liquid crystal panel 101 (R), 101 (G), 101 (B).But the present invention is not limited thereto, and these liquid crystal panels 101 (R), 101 (G), 101 (B) also can be in parallel in above-mentioned liquid cooling circulation.Therefore, among this figure, only take out a kind in these 3 kinds of liquid crystal panels, illustrate as single liquid crystal panel 101.
That is, at the liquid refrigerant that acceptance is heated in the heated liquid crystal panel 101 from the strong light of the intensity of above-mentioned light emitting source 112, its temperature rises, 10,11 discharge from the buffer stream road, are driven by pump 129, by heating radiator 130.At this moment, be cooled to outside by heat is loose, inflow is arranged in the buffering runner 17,18 as the marginal portion up and down of the case 14 of the framework of above-mentioned liquid crystal panel 101 again.Then; liquid refrigerant in this buffering runner 17,18 is by above-mentioned case 14 interior and above-mentioned relative substrate 1 and cover glass plates 4; by being formed on the flat high- drag runner 6,7 of the thickness " d " between TFT substrate 2 and the cover glass plate 5, arrive the above-mentioned buffering runner 10,11 that is formed on above-mentioned case 14 lower limbs once more then.Then, liquid refrigerant is by the flat high- drag runner 6,7 of this thickness " d ", during particularly by this liquid crystal panel zone, be subjected to heat that the liquid crystal panel 101 by the light heating of above-mentioned high-intensity light source sent after, circulate in above-mentioned circulation by the driving of said pump 129 once more.
According to the structure of above-mentioned runner, liquid refrigerant is gone up expansion at Width [being the transverse direction of Fig. 1 (b)] in buffering runner 17,18 (top) and 10,11, significantly slows down, and the pressure in the buffering runner becomes average.So, the flow (flow velocity) of flowing liquid cold-producing medium in the flat high- drag runner 6,7 of the thickness that in the liquid crystal panel zone, forms " d ", because it is proportional to cushion the pressure differential and the runner area of section of runner up and down, so when the thickness " d " of high- drag runner 6,7 on Width evenly the time, the flow velocitys in the high- drag runner 6,7 are at a high speed and fixing.
Like this, according to above-mentioned flow passage structure,, can prevent that liquid refrigerant produces whirlpool and bias current in the liquid crystal panel face by high speed, the homogenising of cold-producing medium mobile in the liquid crystal panel face (liquid crystal panel zone).Therefore, can not produce density difference at the cold-producing medium of internal flow, its cooling power does not have difference yet.Temperature Distribution in the face of liquid crystal panel can not produce difference, so refractive index can be not variant yet.Therefore, the image that obtains can not produce and rock etc. disorderlyly, can realize the raising of picture quality.In addition, according to above-mentioned flow passage structure, as mentioned above, by pump 12 drive liquid refrigerants, heating radiator 130 by constituting radiating part with the hot type that sends to the outside, promptly constitute so-called liquid cooling circulation, can be with higher cooling effectiveness liquid coolant crystal panel.
More than in the explanation, the both sides up and down of the flat high- drag runner 6,7 of above-mentioned thickness " d " are provided with buffering runner 17,18 (top), 10,11 (belows) respectively, but the present invention is not limited to said structure, can only a side wherein be arranged on upstream or downstream.
In addition, the flowing liquid cold-producing medium can use as the water of sneaking into freeze-point depressants such as a part of ethylene glycol, propylene glycol or translucidus is good, inertia and the bubble fluorine as Off ロ リ Na one ト representatives such as (trade marks of Sumitomo 3M society) few, that have electrical insulating property are inert fluid (パ one Network ロ ロ カ one ボ Application: trade name) in above-mentioned each runner.When particularly using the latter's liquid, can effectively prevent owing in the runner in above-mentioned liquid crystal panel zone, sneak into the deterioration of the caused projected picture of bubble in the flowing liquid cold-producing medium.In addition, form on the surface of various substrates of runner 6,7 in the flat of above-mentioned thickness " d " and high-drag liquid crystal panel zone and preferably keep hydrophilic processing, as the coating thin film of titanium oxide.Thus, the light of the titanium dioxide that the light that sends by above-mentioned lamp causes touches the coal effect, and its wall can remain water wettability, so can suppress attaching of dirt and bubble on this wall.
It is relatively good that the thickness " d " of above-mentioned flat high- drag runner 6,7 for example is set at 0.2mm～5mm left and right sides, in addition, the flow velocity of its inner liquid refrigerant preferably is set at the about more than 10 times or 10 times of mean flow rate in buffering runner 17,18 (top), 10,11 (belows).
In addition, in the above-mentioned embodiment, the thickness " d " of formed flat high- drag runner 6,7 is identical on the face of above-mentioned liquid crystal panel 101 both sides (light incident side and exiting side), but for example when the heating of the liquid crystal panel on the face of light incident side is bigger than exiting side, make its thickness " d " difference, therefore also can make flow velocity (flow) difference of inner liquid refrigerant.
As mentioned above, high speed, homogenising by the cold-producing medium that on whole liquid crystal panel, moves about, can not produce disorder etc. in the image that obtains, can access the preferable image quality, and, circulate owing to constitute the liquid cooling that the heating of liquid crystal panel inside is arranged energetically to the outside, can be with higher cooling effectiveness liquid coolant crystal panel.Therefore, in the liquid crystal projector that above-mentioned liquid crystal panel 101 is used with liquid crystal panel 101 (R), 101 (G), 101 (B) as R, G, B, even increase owing to its miniaturization, quietization, high brightnessization make the thermal value of liquid crystal panel portion, also can guarantee the life-span and the reliability of this liquid crystal panel.
The section of the variation of the above-mentioned liquid crystal panel 101 shown in Figure 1 of Fig. 4 (a) expression, Fig. 4 (b) represents the A-A section among above-mentioned Fig. 4 (a).And, in the liquid crystal panel 101 of present embodiment, replace above-mentioned formation shown in Figure 1 to cushion case shape parts 10,11 (below), 17,18 (tops) of runner, these form 10,11 (belows) of buffering runners, the inside that 17,18 (tops) are formed on lower limb on the above-mentioned case 14.And, structure according to the liquid crystal panel 101 of above-mentioned variation, can access the effect same with the liquid crystal panel of above-mentioned embodiment, particularly cushioning runner is formed in the above-mentioned case 14, can reduce the number of components that constitutes liquid crystal panel, low cost can be realized, its Outside Dimensions can be dwindled simultaneously.
Fig. 5 represents the section of the liquid crystal panel 101 of other variation.In the liquid crystal panel 101 of this variation; as shown; in the runner that between above-mentioned relative substrate 1 and cover glass plate 4 and TFT substrate 2 and cover glass plate 5, forms; insert identical, flat, the thin and transparent plate-shaped member-separating plate of thickness 60,61 respectively; in the liquid crystal panel zone, form high- drag runner 6a, 6b, 7a, 7b; the inside of lower limb on above-mentioned case 14 concentrates respectively to form buffering runner 10,17 simultaneously.And, according to said structure, by changing the thickness of slab of above-mentioned separating plate 60,61, can the above-mentioned high-drag runner of appropriate change 6a, the flow resistance of 6b, 7a, 7b, and can simply form the high-drag runner.In addition,,, can reduce the number of components that constitutes liquid crystal panel, can realize low cost, can dwindle its Outside Dimensions simultaneously by in above-mentioned case 14, forming the buffering runner as above-mentioned.
Fig. 6 and Fig. 7 represent the detailed structure of the liquid crystal projector of other embodiments of the present invention with liquid crystal panel.
At first, Fig. 6 (a) represents the plane section of the liquid crystal panel of this embodiment, A-A section and B-B section among Fig. 6 (b) and Fig. 6 (c) presentation graphs 6 (a).And among these figure, the textural element identical with above-mentioned diagram is with same symbolic representation.
As shown; in the liquid crystal panel of other embodiments; corresponding with above-mentioned liquid crystal panel zone as the effective pixel area of liquid crystal panel; the little high- drag runner 6,7 of thickness " d " is respectively formed between the relative substrate 1 and cover glass 4 and TFT substrate and cover glass 5 that constitutes liquid crystal panel; and replace above-mentioned buffer part; shown in Fig. 6 (a); surround above-mentioned high- drag runner 6,7 around, form the thickness lower resistance auxiliary flow 70,71 bigger than the thickness " d " of above-mentioned high-drag runner.In addition, in the liquid crystal panel of this embodiment, shown in Fig. 6 (a), above-mentioned auxiliary flow 70,71 (upstream side of liquid refrigerant) width below figure becomes big, along with move the top (downstream of liquid refrigerant) to figure, its width slowly narrows down then.
Promptly, liquid crystal panel according to this embodiment of said structure, in liquid crystal panel, can be implemented in high speed, the equalization of the mobile cold-producing medium of the effective pixel area (liquid crystal panel zone) of whole liquid crystal panel, make thus in the projected image and can not produce disorder, can access the preferable image quality.And, because constituting the liquid cooling that the heating of liquid crystal panel inside is arranged energetically to the outside circulates, can be with higher cooling effectiveness liquid coolant crystal panel, simultaneously owing to replace buffer part, form the auxiliary flow of lower resistance on every side around the high-drag runner, shown in the arrow of Fig. 6 (a), cold-producing medium can flow to inside equably around above-mentioned high-drag runner.In addition, this structure does not need portion within it to form buffer part etc., surrounds the above-mentioned case around the various substrates that constitute liquid crystal panel, so can reduce the quantity of structure member, can realize low cost, can dwindle its Outside Dimensions simultaneously, and is more favourable.
Fig. 7 represents the planimetric map of variation of the liquid crystal panel of above-mentioned other embodiments.In this variation, as shown, above-mentioned lower resistance auxiliary flow 70,71 shown in Figure 6 surrounds with around the high-drag runner 6 (or 7) of the rectangle of the corresponding formation of effective pixel area (liquid crystal panel zone) of liquid crystal panel with identical width, and forming is the auxiliary flow 70 (or 71) of essentially rectangular in appearance.And according to this variation, with above-mentioned the same, cold-producing medium can owing to do not need above-mentioned case, can reduce the quantity of structure member simultaneously from evenly flowing into high-drag runner 6 inside on every side, can dwindle its Outside Dimensions simultaneously.
Embodiments of the invention 2 are described with reference to the accompanying drawings.In the present embodiment 2, the textural element identical with the foregoing description 1 is with same symbolic representation.
Fig. 8 represents the detailed inner structure of a liquid crystal panel 101 among above-mentioned R, G, B liquid crystal panel 101 (R), 101 (G), 101 (B).At first, the primary structure key element of symbol 2 these liquid crystal panels 101 of expression of Fig. 8 (a) of expression liquid crystal panel 101 sections, be its surface go up to form a plurality of transistor driving elements, the TFT substrate as constituting by glass, relative with this TFT substrate, be provided with the relative substrate 1 that constitutes by glass, encapsulated liquid crystals 3 between these transparency carriers 2,1 then forms the liquid crystal panel 101 of one of 3 primary colors of R, G or B thus.
In addition, the symbol 4 among the figure and 5 is the so-called protection glass plate, and these cover glass plates are separately positioned on the light incident side and the exiting side of above-mentioned liquid crystal panel 101, forms the runner 6,7 of liquid refrigerant therebetween.Be provided with case 14, surround around these relative substrates 1, TFT substrate 2 and the cover glass plate 4,5, form framework.Promptly; as represent shown in the Fig. 8 (b) of the A-A section among above-mentioned Fig. 8 (a); comprise on the two sides of panel in the zone (being called " liquid crystal panel zone " later on) that forms above-mentioned liquid crystal panel 101; specifically, between above-mentioned relative substrate 1 and the cover glass plate 4, form the same and flat runner 6,7 of thickness " D " [perpendicular to the direction height of Fig. 8 (b) paper] respectively between TFT substrate 2 and the cover glass plate 5.And the light incident side and the exiting side of cover glass plate 4,5 are formed with not shown polarizing coating respectively.
Formation surrounds on the last lower edge portion of case 14 of framework of above-mentioned various substrates, shown in above-mentioned Fig. 8 (a) and (b), forming thickness " d " respectively littler than the thickness " D " of above-mentioned runner 6,7 (is d＜D), the seam shape and width [being the transverse direction of Fig. 8 (b)] runner 8,9 (below), 15,16 (tops) identical with above-mentioned runner.Be provided with its inner case shape parts 10,11 (below), 17,18 (tops) that form the buffering runner on the end face of the last lower limb of this case 14 respectively.And, among Fig. 8 (b), represent the flow direction of the liquid refrigerant in the above-mentioned liquid crystal panel 101 inner runners that form by arrow.In addition, Fig. 8 (a) and (b) in symbol 12,13,19,20 be illustrated respectively in the importing/delivery line of the set liquid refrigerant of the substantial middle part of the case shape parts 10,11 (below) that form above-mentioned buffering runner, 17,18 (tops).In addition, when the part of the blacking of symbol 21 representatives among the figure represents to assemble above-mentioned parts, the so-called O-ring seal that inserts for hydraulic seal.
9 circular flows that describe the liquid refrigerant in the liquid crystal projector above-mentioned each liquid crystal panel 101, the embodiment of the invention 2 that comprises said structure in its parts in detail with reference to the accompanying drawings.Here, among above-mentioned Fig. 3, above-mentioned R, G, B, illustrate according to series connection in being driven by pump 129, circulating by the liquid cooling among the heating radiator 130 round-robin figure that constitute radiating part with liquid crystal panel 101 (R), 101 (G), 101 (B).But be not limited thereto among the present invention, these liquid crystal panels 101 (R), 101 (G), 101 (B) also can be in parallel in above-mentioned liquid cooling circulation.Therefore, among this figure, only take out a kind in these 3 kinds of liquid crystal panels, illustrate as single liquid crystal panel 101.
That is, at the liquid refrigerant that acceptance is heated in the heated liquid crystal panel 101 from the strong light of the intensity of above-mentioned light emitting source 112, its temperature rises, 10,11 discharge from the buffer stream road, are driven by pump 129, by heating radiator 130.At this moment, be cooled to outside by heat is loose, inflow is arranged in the buffering runner 17,18 as case marginal portion about in the of 14 of the framework of above-mentioned liquid crystal panel 101 again.Then, liquid refrigerant in this buffering runner 17,18 is by being formed on the flat flow channel 15,16 of above-mentioned case 14 coboundarys, thickness " d ", pass through the runner 6,7 in the flat liquid crystal panel zone of thickness " D " then, by being formed on the flat flow channel 10,11 of above-mentioned case 14 lower limbs, thickness " d ", return above-mentioned buffering runner 10,11 once more again.At this moment, as above-mentioned, the both sides up and down of the runner 6,7 in the flat liquid crystal panel zone of thickness " D " are provided with by thickness " d " (D＞flat runner 15,16 (top) d), 10,11 (belows) concentrated runner that constitute, so-called high-drag.
Promptly, structure according to above-mentioned runner, for example be provided with the flat flow channel 16 that constitutes high-drag runner and thickness " d " with buffering runner 18 (top) with being connected, so the liquid refrigerant that flows into from the ingress pipe 20 of liquid refrigerant is in Width [being the transverse direction of Fig. 8 (the b)] expansion of buffering runner 18, significantly deceleration.The pressure that the result cushions in the runner 18 becomes average.And, the downstream of the runner 7 in the flat liquid crystal panel zone of thickness " D " is connected with the flat runner 9 of high-drag, also be provided with buffering runner 11, even so attract cold-producing medium from 1 delivery line 13, the resistance to flow of runner 9 is also very big, therefore, the pressure in the buffering runner 11 becomes average.So, the flow (flow velocity) of flowing liquid cold-producing medium in the flat flow channel 7 in the liquid crystal panel zone of the flat flow channel 16,9 of high-drag and thickness " D ", because it is proportional to cushion the pressure differential and the runner area of section of runner 18 and 11 up and down, so when the thickness " d " of the thickness " D " of runner 7 and runner 16 and 9 on Width evenly the time, the flow velocitys in the runner 7 are fixed.Equally, the liquid refrigerant that flows into from liquid refrigerant ingress pipe 19 flows in the runner 6 in the flat liquid crystal panel zone of thickness " D " with even flow.
Like this, according to above-mentioned flow passage structure, homogenising, stabilization by mobile cold-producing medium can prevent that liquid refrigerant from producing whirlpool and bias current in liquid crystal panel face (liquid crystal panel zone).Therefore, can not produce density difference at the cold-producing medium of internal flow, its cooling power does not have difference yet, and promptly the Temperature Distribution in the face of liquid crystal panel can not produce difference, so refractive index can be not variant yet.Therefore, the image that obtains can not produce and rock and disorders such as part variable color, can realize the raising of picture quality.In addition,, as mentioned above, drive liquid refrigerant, will generate heat row to the outside, promptly constitute so-called liquid cooling circulation by the heating radiator 130 that constitutes radiating part by pump 12 according to above-mentioned flow passage structure, can be with higher cooling effectiveness liquid coolant crystal panel.
More than in the explanation, the both sides up and down of the runner 6,7 in the flat liquid crystal panel zone of above-mentioned thickness " D " be provided with respectively as the high-drag runner of realizing above-mentioned centralized function, thickness " d " (D＞d) flat runner 15,16 (top), 10,11 (belows) and buffering runner 17,18 (top), 10,11 (belows), but the present invention is not limited to said structure, can only a side wherein be arranged on upstream or downstream.
In addition, the flowing liquid cold-producing medium can use as the water of sneaking into freeze-point depressants such as a part of ethylene glycol, propylene glycol or translucidus is good, inertia and the bubble fluorine as Off ロ リ Na one ト representatives such as (trade marks of Sumitomo 3M society) few, that have electrical insulating property are inert fluid (パ one Network ロ ロ カ one ボ Application: trade name) in above-mentioned each runner.When particularly using the latter's liquid, can effectively prevent to sneak in institute's flowing liquid cold-producing medium in the runner in above-mentioned liquid crystal panel zone the deterioration of the caused projected picture of bubble.In addition, form on the surface of various substrates of runner 6,7 in flat liquid crystal panel zone of above-mentioned thickness " D " and preferably keep hydrophilic processing, as the coating thin film of titanium oxide.Thus, the light of the titanium dioxide that the light that sends by above-mentioned lamp causes touches the coal effect, and its wall can keep water wettability, so can suppress attaching of dirt and bubble on this wall.
It is the about more than 10 times or 10 times of above-mentioned buffering runner 18 inner refrigerant mean flow raties that the thickness " d " of above-mentioned flat high-drag runner 16 preferably is set at the flow velocitys that make in the high-drag runner 16.In addition, the relation of buffering runner and high-drag runner is preferably determined too.The thickness " D " of the runner 7 in liquid crystal panel zone is not particularly limited with the relation of the thickness " d " of high-drag runner 16 and 9, but the present invention is corresponding with it corresponding to the situation of D greater than d, and D is that 2～5mm, d are better about 0.1～1mm.
In addition, in the above-mentioned embodiment, the thickness " D " of the runner 6,7 in formed flat liquid crystal panel zone is identical on the face of above-mentioned liquid crystal panel 101 both sides (light incident side and exiting side), but for example when the heating of the liquid crystal panel on the face of light incident side is bigger than exiting side, can make its thickness difference, also can make flow velocity (flow) difference of inner liquid refrigerant thus.And, identical with it, be not the thickness " D " of above-mentioned runner 6,7, the flow area that forms thickness " d ", buffering runner 17,18 (top), 10,11 (belows) of runner 15,16 (top) as the concentrated runner of liquid refrigerant high-drag runner, 10,11 (belows) also can appropriate change.
As mentioned above, homogenising, stabilization by the cold-producing medium that on whole liquid crystal panel, moves about, can not produce disorder etc. in the image that obtains, can access the preferable image quality, and, circulate owing to constitute the liquid cooling that the heating of liquid crystal panel inside is arranged energetically to the outside, can access the cooling effectiveness of higher liquid crystal panel.And, in the liquid crystal projector that above-mentioned liquid crystal panel 101 is used with liquid crystal panel 101 (R), 101 (G), 101 (B) as R, G, B, even increase owing to its miniaturization, quietization, high brightnessization make the thermal value of liquid crystal panel portion, also can guarantee the life-span and the reliability of this liquid crystal panel.
The section of the variation of the above-mentioned liquid crystal panel 101 shown in Figure 8 of Figure 10 (a) expression, Figure 10 (b) represents the A-A section among above-mentioned Figure 10 (a).And, in the liquid crystal panel 101 of this variation, runner 8,9 (below), 15,16 (tops) that formation surrounds the thickness " d " that forms on the last lower limb of case 14 of framework of various substrates are not the seam shapes that forms above-mentioned Fig. 1, but form the through hole 32 of a plurality of circles.And, structure according to the liquid crystal panel 101 of above-mentioned variation, can reach the effect identical with the liquid crystal panel of above-mentioned embodiment, and owing to form the runner that through hole 32 replaces above-mentioned seam shape on the last lower limb of above-mentioned case 14, so its manufacturing is easy to, the runner 15,16 (top), the runner in 10,11 (belows) that form the concentrated runner of liquid refrigerant simultaneously are more favourable when forming high-drag.
Figure 11 represents the section of the liquid crystal panel 101 of other variation.In the liquid crystal panel 101 of this variation, as shown, surround in formation above-mentioned various substrates framework case 14 on form seam shape runner 8,9 (belows), 15,16 (tops) on the lower limb in advance, thickness is identical with the thickness " D " of the runner 6,7 in above-mentioned liquid crystal panel zone, then, flaps 30,31 (top), 32,33 (belows) of specific thickness are set on the wall in these seam shape runners, form the high-drag runner of above-mentioned thickness " d ".And, according to said structure, make in advance, at the thickness that is formed on flat flaps 30,31,32,33 fixing on the seam shape runner of lower limb on the case 14, for example the thickness " D " with the runner 6,7 in above-mentioned liquid crystal panel zone is set to desired value accordingly, thus, above-mentioned effect/effect can be reached, only high-drag runner can be formed easily simultaneously.In addition, make the thickness of above-mentioned flaps 30,31,32,33 different accordingly with the runner 6,7 in above-mentioned liquid crystal panel zone respectively, can change the flow velocity of the cold-producing medium in these runners 6,7 thus.
Figure 12 represents the section of the liquid crystal panel 101 of another other variation of the present invention.As shown, in the liquid crystal panel 101 of this variation, as shown, surround in formation above-mentioned various substrates framework case 14 on installed the case shape parts that form above-mentioned buffering runner concentratedly on the lower limb, become one.That is, replace above-mentioned 2 case shape parts 10,11 (below) shown in Figure 8,1 case shape parts 10 has been installed, in addition, replace other 2 case shape parts 17,18 (top), 1 case shape parts 17 has been installed, thus, on lower limb on the above-mentioned case 14, form the buffering runner respectively.And, also can access above-mentioned effect/effect according to said structure, simultaneously because the quantity that can cut down structure member, so can be easily and make liquid crystal panel cheaply.
Figure 13 represents the section of the liquid crystal panel 101 of another other variation of the present invention.And, as shown, in the liquid crystal panel 101 of this variation, different with above-mentioned liquid crystal panel shown in Figure 1, will be by the thickness " d " of the same flat runner 6 of thickness " D " and both sides the runner of the liquid refrigerant of the same flat high-drag runner 30,32 formations only be arranged on the light incident side of liquid crystal panel 101.That is, by in the TFT substrate 2 that has sealed liquid crystal 3 therebetween and the liquid crystal panel 101 that relative substrate 1 constitutes, formed the same flat runner 6 of thickness " D " between the cover glass plate 4 of substrate 1 and light incident side relatively.But, on exiting side, cover glass plate 5 has been installed contiguously directly on the TFT substrate 2.In addition, formation surrounds on the last lower limb of case 14 of framework of these substrates, the flat runner 6 the same with above-mentioned thickness " D " is provided with 1 seam shape runner 30. (below), 32 (tops) accordingly respectively, thus, forms the high-drag runner of above-mentioned thickness " d ".
According to the structure of above-mentioned liquid crystal panel, it seems from structure, can be than being easier to and making cheaply, in addition, its thermal value is smaller, only need remove the adstante febre of liquid crystal panel light incident side, and the present invention is proper.
At last, Figure 14 represents the section of the liquid crystal panel 101 of another other variation of the present invention.And, as shown, in the liquid crystal panel 101 of this variation, on the coboundary of the case 14 that forms said frame, " U " word shape runner of formation and runner 6 same thickness " D " is connected with other runners 7, in addition, the lower limb of case 14 forms the high- drag runner 44,45 of thickness " D ", and the case shape parts 42,43 that form the buffering runner have been installed respectively on it.And, the importing/delivery line of symbol 42,43 express liquid cold-producing mediums.
And, according to said structure, different with above-mentioned liquid crystal panel 101, importing/delivery line that liquid refrigerant is imported or derives in the liquid crystal panel is not arranged on panel both sides up and down, and be arranged on a wherein side, for example, can only be arranged on downside in this example, so it is when the pipe arrangement of cold-producing medium is installed in the narrow and small shell of liquid crystal projector, more favourable.
Description of drawings
[Fig. 1] is the sectional view and the A-A sectional view thereof of detailed inner structure of the liquid crystal panel used of liquid crystal projector of the expression embodiment of the invention 1.
[Fig. 2] is the figure of the circular flow of the liquid refrigerant in the liquid crystal projector of explanation the invention described above embodiment 1.
[Fig. 3] is the block diagram of an example of all structures of the liquid crystal projector of the liquid cooling apparatus of expression with liquid crystal panel of the present invention.
[Fig. 4] is the section plan and the A-A sectional view thereof of detailed inner structure of the variation of the above-mentioned liquid crystal panel shown in Figure 1 of expression.
[Fig. 5] is the section plan and the A-A sectional view thereof of detailed inner structure of the liquid crystal panel of expression the invention described above other variation.
[Fig. 6] is section plan and the A-A and the B-B sectional view of the detailed inner structure of liquid crystal panel of other embodiments of expression the present invention.
[Fig. 7] is the section plan of variation of the liquid crystal panel of above-mentioned other embodiments shown in Figure 6 of expression.
[Fig. 8] is the sectional view and the A-A sectional view thereof of detailed inner structure of the liquid crystal panel used of liquid crystal projector of the expression embodiment of the invention 2.
[Fig. 9] is the figure of the circular flow of the liquid refrigerant in the liquid crystal projector of explanation the invention described above embodiment 2.
[Figure 10] is the sectional view and the A-A sectional view thereof of detailed inner structure of the variation of the above-mentioned liquid crystal panel shown in Figure 8 of expression.
[Figure 11] is the sectional view of detailed inner structure of the liquid crystal panel of expression the invention described above other variation.
[Figure 12] is the sectional view of detailed inner structure of the liquid crystal panel of expression the invention described above other variation.
[Figure 13] is the sectional view of detailed inner structure of the liquid crystal panel of expression the invention described above other variation.
[Figure 14] is the sectional view of detailed inner structure of the liquid crystal panel of expression the invention described above other variation.
Symbol description
1 relative substrate
The 2TFT substrate
3 liquid crystal
4,5 cover glass plates
6, the runner of 7 thickness " D "
8, the runner of 9,15,16 thickness " d "
10,11,17,18 form the parts that cushion runner
The shell of 100 liquid crystal projectors
101 liquid crystal panels
129 pumps
130 heating radiators
Claims (12)
1. liquid crystal projector, have: light source, the light that above-mentioned light source is sent is divided into the optical element of 3 bundle light as directional light, make the 3 bundle light cut apart by above-mentioned optical element by and modulate 3 kinds of liquid crystal panels of its intensity, will be by above-mentioned 3 kinds of liquid crystal panels the photosynthetic light compositing device of 3 bundles of modulated intensity, projection is by the projection arrangement of 3 synthetic bundle light of above-mentioned light compositing device, and have and comprise liquid refrigerant is circulated in above-mentioned 3 kinds of liquid crystal panels with the liquid cooling circulation of the pump that cools off and heating radiator, it is characterized in that:
In above-mentioned 3 kinds of liquid crystal panels, between face of this liquid crystal panel and the transparent component that is oppositely arranged with it, form the runner of liquid refrigerant respectively, and this runner have the consistency of thickness in the liquid crystal panel zone that covers above-mentioned liquid crystal panel and flat high-drag runner and with its upstream and downstream in a side in abutting connection with and the buffer part that forms.
2. liquid crystal projector, have: light source, the light that above-mentioned light source is sent is divided into the optical element of 3 bundle light as directional light, make the 3 bundle light cut apart by above-mentioned optical element by and modulate 3 kinds of liquid crystal panels of its intensity, will be by above-mentioned 3 kinds of liquid crystal panels the photosynthetic light compositing device of 3 bundles of modulated intensity, projection is by the projection arrangement of 3 synthetic bundle light of above-mentioned light compositing device, and have and comprise liquid refrigerant is circulated in above-mentioned 3 kinds of liquid crystal panels with the liquid cooling circulation of the pump that cools off and heating radiator, it is characterized in that:
In above-mentioned 3 kinds of liquid crystal panels, formed the runner of liquid refrigerant respectively by face of this liquid crystal panel and the transparent component that is oppositely arranged with it, and this runner have the consistency of thickness in the liquid crystal panel zone that covers above-mentioned liquid crystal panel and flat high-drag runner and surround this high-drag runner and flow passage resistance force of waterproof than the low auxiliary flow of above-mentioned high-drag runner.
3. the liquid crystal panel of a liquid crystal projector, encapsulated liquid crystals between 2 transparency carriers and forming is characterized in that: have at least with above-mentioned 2 transparency carriers in the transparent panel that is oppositely arranged of 1 face, form the runner of liquid refrigerant therebetween; Above-mentioned runner has formed consistency of thickness and flat high-drag runner, and has and the upstream side of above-mentioned high-drag runner and the buffer part of the side adjacency in the downstream.
4. the liquid crystal panel of a liquid crystal projector, encapsulated liquid crystals between 2 transparency carriers and forming is characterized in that: have at least with above-mentioned 2 transparency carriers in the transparent panel that is oppositely arranged of 1 face, form the runner of liquid refrigerant therebetween; Above-mentioned runner forms consistency of thickness and flat high-drag runner, and has the above-mentioned high-drag runner of encirclement and flow passage resistance force of waterproof than the low auxiliary flow of above-mentioned high-drag runner.
5. the liquid cooling apparatus of the liquid crystal panel in the liquid crystal projector, the liquid crystal panel of the liquid crystal projector that utilizes liquid refrigerant to cool off encapsulated liquid crystals between 2 transparency carriers and form, it is characterized in that: have at least with above-mentioned 2 transparency carriers in the transparent panel that is oppositely arranged of 1 face, thus, form to cover therebetween the consistency of thickness in liquid crystal panel zone of above-mentioned liquid crystal panel and flat high-drag runner and with the buffer part of this runner adjacency, the heat of the above-mentioned liquid crystal panel that also has the drive unit of the liquid refrigerant that is connected with the above-mentioned buffer part of above-mentioned liquid crystal panel simultaneously and will be heated in the above-mentioned the 1st and the 2nd runner is loose to outside heat abstractor, forms the liquid cooling circulation thus.
6. the liquid cooling apparatus of the liquid crystal panel in the liquid crystal projector, the liquid crystal panel of the liquid crystal projector that utilizes liquid refrigerant to cool off encapsulated liquid crystals between 2 transparency carriers and form, it is characterized in that: have at least with above-mentioned 2 transparency carriers in the transparent panel that is oppositely arranged of 1 face, thus, the consistency of thickness in the liquid crystal panel zone of the above-mentioned liquid crystal panel of formation covering therebetween and flat high-drag runner and this runner of encirclement and flow passage resistance force of waterproof are than the low auxiliary flow of above-mentioned high-drag runner, and have the drive unit of the liquid refrigerant that is connected with the above-mentioned buffer part of above-mentioned liquid crystal panel and the heat of the above-mentioned liquid crystal panel that will be heated is loose to outside heat abstractor in the above-mentioned the 1st and the 2nd runner, form the liquid cooling circulation thus.
7. liquid crystal projector, have: light source, the light that above-mentioned light source is sent is divided into the optical element of 3 bundle light as directional light, make the 3 bundle light cut apart by above-mentioned optical element by and modulate 3 kinds of liquid crystal panels of its intensity, will be by above-mentioned 3 kinds of liquid crystal panels the photosynthetic light compositing device of 3 bundles of modulated intensity, the projection arrangement of the 3 bundle light that the above-mentioned light compositing device of projection is synthesized, and have and comprise the liquid cooling that liquid refrigerant circulate in above-mentioned 3 kinds of liquid crystal panels with the pump that cools off and heating radiator is circulated; It is characterized in that:
In above-mentioned 3 kinds of liquid crystal panels, formed the runner of liquid refrigerant respectively by face of this liquid crystal panel and the transparent component that is oppositely arranged with it, and this runner has the 1st runner in consistency of thickness and flat, as to cover above-mentioned liquid crystal panel liquid crystal panel zone and is arranged on a side, flow passage resistance force of waterproof 2nd runner higher than the flow passage resistance force of waterproof in above-mentioned the 1st runner in above-mentioned the 1st runner upstream and downstream.
8. liquid crystal projector according to claim 8 is characterized in that, above-mentioned liquid crystal panel also has the buffer part with above-mentioned the 2nd runner adjacency except having above-mentioned the 2nd runner.
9. the liquid crystal panel of a liquid crystal projector, the liquid crystal projector that is used for encapsulated liquid crystals between 2 transparency carriers and forms, it is characterized in that: have at least with above-mentioned 2 transparency carriers in the transparent panel that is oppositely arranged of 1 face, form the runner of liquid refrigerant therebetween; Above-mentioned runner forms consistency of thickness and the 1st flat runner in the zone in the liquid crystal panel zone that covers above-mentioned liquid crystal panel, and is provided with flow passage resistance force of waterproof 2nd runner higher than the flow passage resistance force of waterproof in above-mentioned the 1st runner in the upstream side and the side in the downstream of above-mentioned the 1st runner.
10. the liquid crystal panel of liquid crystal projector according to claim 9 is characterized in that, above-mentioned runner also has the buffer part with above-mentioned the 2nd runner adjacency except having above-mentioned the 2nd runner.
11. the liquid cooling apparatus of the liquid crystal panel in the liquid crystal projector, the liquid crystal panel that the liquid crystal projector that utilizes liquid refrigerant to cool off encapsulated liquid crystals between 2 transparency carriers and form is used, it is characterized in that: have at least with above-mentioned 2 transparency carriers in the transparent panel that is oppositely arranged of 1 face, thus, form to cover the consistency of thickness in liquid crystal panel zone of above-mentioned liquid crystal panel and flat the 1st runner therebetween and be arranged in the upstream side of above-mentioned the 1st runner and a side in downstream, the 2nd runner that flow passage resistance force of waterproof is higher than the flow passage resistance force of waterproof in above-mentioned the 1st runner, and have the drive unit of the liquid refrigerant that is connected with the above-mentioned the 1st and the 2nd runner of above-mentioned liquid crystal panel and the heat of the above-mentioned liquid crystal panel that will be heated is loose to outside heat abstractor in the above-mentioned the 1st and the 2nd runner, form the liquid cooling circulation thus.
12. the liquid cooling apparatus of liquid crystal panel according to claim 11 is characterized in that, except having above-mentioned the 2nd runner, also has the buffer part with above-mentioned the 2nd runner adjacency.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP192851/2004 | 2004-06-30 | ||
| JP2004192851A JP2006017799A (en) | 2004-06-30 | 2004-06-30 | Liquid crystal projector, its liquid crystal panel and its liquid cooling device |
| JP193183/2004 | 2004-06-30 |
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| Publication Number | Publication Date |
|---|---|
| CN1820226A true CN1820226A (en) | 2006-08-16 |
| CN100529958C CN100529958C (en) | 2009-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005800006651A Expired - Fee Related CN100529958C (en) | 2004-06-30 | 2005-06-28 | Liquid crystal projector, its liquid crystal panel, and its liquid cooler |
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| Country | Link |
|---|---|
| JP (1) | JP2006017799A (en) |
| CN (1) | CN100529958C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101750130B (en) * | 2008-12-05 | 2013-01-23 | 三洋电机株式会社 | Installation structure of sensor and projector apparatus having the same |
| CN101971081B (en) * | 2007-11-16 | 2013-05-08 | 制造资源国际公司 | System and method for thermally controlling an electronic display |
| CN104710966A (en) * | 2013-12-11 | 2015-06-17 | 深圳市凯世光电科技有限公司 | Liquid coolant for cinema projectors, and preparation method thereof |
| CN106483693A (en) * | 2016-12-30 | 2017-03-08 | 深圳市华星光电技术有限公司 | The detection means of mesomorphic state and its detection method in liquid crystal panel |
| CN109976073A (en) * | 2017-12-28 | 2019-07-05 | 精工爱普生株式会社 | Cooling device and projector |
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| JP2006171300A (en) * | 2004-12-15 | 2006-06-29 | Sony Corp | Liquid crystal display and cooling device |
| JP5085888B2 (en) * | 2006-05-31 | 2012-11-28 | 株式会社日立製作所 | Cooling device for electronic equipment |
| JP2012181386A (en) * | 2011-03-02 | 2012-09-20 | Mitsubishi Electric Corp | Reflection type optical element cooling device and reflection type optical element unit |
| JP5867265B2 (en) * | 2012-04-24 | 2016-02-24 | 大日本印刷株式会社 | Optical element, optical module, illumination device, projection device, and projection-type image display device |
| US20230314860A1 (en) * | 2020-08-31 | 2023-10-05 | Sony Group Corporation | Liquid crystal display apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE60136470D1 (en) * | 2000-08-28 | 2008-12-18 | Matsushita Electric Ind Co Ltd | VIDEO PROJECTION DEVICE |
| JP2002268038A (en) * | 2001-03-09 | 2002-09-18 | Sharp Corp | Cooling structure for optical unit of liquid crystal display device |
| JP2004019934A (en) * | 2002-06-20 | 2004-01-22 | Nsk Ltd | Roller bearing unit for wheels |
| JP3885679B2 (en) * | 2002-06-28 | 2007-02-21 | 株式会社日立製作所 | Electronics |
| JP3725106B2 (en) * | 2002-08-30 | 2005-12-07 | 株式会社東芝 | Electronics |
| JP4196625B2 (en) * | 2002-09-24 | 2008-12-17 | セイコーエプソン株式会社 | Electro-optical device, electronic apparatus, and projection display device |
-
2004
- 2004-06-30 JP JP2004192851A patent/JP2006017799A/en active Pending
-
2005
- 2005-06-28 CN CNB2005800006651A patent/CN100529958C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101971081B (en) * | 2007-11-16 | 2013-05-08 | 制造资源国际公司 | System and method for thermally controlling an electronic display |
| CN101750130B (en) * | 2008-12-05 | 2013-01-23 | 三洋电机株式会社 | Installation structure of sensor and projector apparatus having the same |
| CN104710966A (en) * | 2013-12-11 | 2015-06-17 | 深圳市凯世光电科技有限公司 | Liquid coolant for cinema projectors, and preparation method thereof |
| CN106483693A (en) * | 2016-12-30 | 2017-03-08 | 深圳市华星光电技术有限公司 | The detection means of mesomorphic state and its detection method in liquid crystal panel |
| CN106483693B (en) * | 2016-12-30 | 2019-12-31 | 深圳市华星光电技术有限公司 | Device and method for detecting liquid crystal state in liquid crystal panel |
| CN109976073A (en) * | 2017-12-28 | 2019-07-05 | 精工爱普生株式会社 | Cooling device and projector |
| CN109976073B (en) * | 2017-12-28 | 2022-03-22 | 精工爱普生株式会社 | Cooling device and projector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100529958C (en) | 2009-08-19 |
| JP2006017799A (en) | 2006-01-19 |
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