CN2711773Y - LCD back projection optical engine adjusting fixing system mechanism - Google Patents
LCD back projection optical engine adjusting fixing system mechanism Download PDFInfo
- Publication number
- CN2711773Y CN2711773Y CN 200320109377 CN200320109377U CN2711773Y CN 2711773 Y CN2711773 Y CN 2711773Y CN 200320109377 CN200320109377 CN 200320109377 CN 200320109377 U CN200320109377 U CN 200320109377U CN 2711773 Y CN2711773 Y CN 2711773Y
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- CN
- China
- Prior art keywords
- day care
- engine
- bracket
- projection optical
- hemisphere
- Prior art date
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- Expired - Fee Related
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- 230000007246 mechanism Effects 0.000 title claims abstract description 42
- 230000003287 optical effect Effects 0.000 title claims abstract description 14
- 238000001816 cooling Methods 0.000 claims abstract description 5
- 239000004973 liquid crystal related substance Substances 0.000 claims description 17
- 210000001320 hippocampus Anatomy 0.000 claims description 4
- 230000035939 shock Effects 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims description 2
- 239000003381 stabilizer Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
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Abstract
The utility model discloses an LCD back projection optical engine adjusting fixing system mechanism, comprising an adjusting mechanism of multiple degrees of freedom space, an impact resistance fixing mechanism and an air cooling system. The adjusting mechanism of multiple degrees of freedom space is a contact friction and slide structure of hemisphere sphere which is composed of an upper semi-bracket and a lower semi-bracket. The upper semi-bracket is a hemisphere convexity mechanism, and the bottom of the hemisphere convexity is provided with engaging holes. The upper semi-bracket is engaged with the lower semi-bracket. The upper semi-bracket is connected with the fixing stabilizer blade of the engine, and namely the engine is directly installed on the upper semi-bracket of the adjusting fixing mechanism. The lower semi-bracket is a spherical groove, and an engaging tooth structure is provided in the groove. The LCD back projection optical engine adjusting fixing system mechanism has the advantages of dependable fixing character, impact resistance, vibration resistance, invariant performance of temperature environment, good air-cooled piping and structure, and good compactness, not increasing the thickness and height of the complete machine. The LCD back projection optical engine adjusting fixing system mechanism can proceed with a little adjusting of images of a plurality of freedom degrees in space according to the relationship between the projection engine and the screen.
Description
Technical field
The utility model relates to adjusts fastening system mechanism, relates in particular to a kind of liquid crystal rear-projection optical engine and adjusts fastening system mechanism.
Background technology
High definition back-projecting liquid crystal display technique is the main implementation technique of modern high-definition television.The display of the development need high definition of high-definition television, high brightness, giant-screen, the back-projecting liquid crystal display becomes one of gordian technique of high-definition television.In the high definition back-projecting liquid crystal TV set, the image of high definition is to carry out spatial modulation and form image shining light beam on it by three highdensity liquid crystal image devices of red, green, blue, then by the optical system enlarging projection to display screen.As the core engine core components of back projection TV, light engine has comprised: liquid crystal image device, light source, optical system and projection lens.Light engine is to produce and the parts of enlarged image, and it produces image, and with image projection to screen.Therefore the position of light engine in the back projection cabinet will directly influence geometrical property and other optical property that is projected in the image on the screen.Because Projection Display is the image enlarging projection imaging with little image source, subtle change on the engine position all will cause the wide variation of screen picture, so the adjustment fixed mechanism of engine becomes one of critical component of high definition back-projecting liquid crystal display.
Summary of the invention
The purpose of this utility model provides a kind of liquid crystal rear-projection optical engine and adjusts fastening system mechanism.
It has multiple degrees of freedom space adjusting mechanism, shock resistance tightens up mechanism and air cooling system.
Advantage of the present utility model:
1) the utlity model has the function that to carry out space a plurality of degree of freedom image inching;
2) reliable tightness has shock resistance, vibration and temperature environment and changes loosening performance;
3) have the good air-cooled pipeline and the function of structure;
4) compactedness principle, thickness that does not increase complete machine and height.
Description of drawings
Fig. 1 is a high definition back-projecting liquid crystal display system complete machine structure figure;
Fig. 2 (a) is the three-dimensional plot that light engine is adjusted fastening system mechanism;
Fig. 2 (b) is the vertical view that light engine is adjusted fastening system mechanism;
Fig. 3 (a) is that light engine is adjusted day care three-dimensional plot in the fastening system mechanism;
Fig. 3 (b) is that light engine is adjusted day care side view in the fastening system mechanism;
Fig. 4 is that light engine is adjusted day care three-dimensional plot under the fastening system mechanism;
Fig. 5 is that light engine is adjusted fastening system mechanism air channel tomograph;
Among the figure: screen 1, reflector group 2 cabinets 3, engine 4, adjustment fixed mount 5, fine setting and pickup groove 6, air channel 7, upward day care 8, day care 9 down, left and right sides Precision trimming and fixed bar 10, subiculum engaging tooth 11, engine tighten up hole 12, air vent 13, pop-up hemisphere support 14, the recessed ball support of subiculum face 15, finely tune and tighten up hole 16, air channel interface 17, pop-up engaging hole 18.
Embodiment
As shown in Figure 1, the primary structure of back projection TV is by cabinet 3, Circuits System, and the adjustment fixed mechanism 5 of sound system, light engine, reflector group 2, display screen 1 and back projection light engine 4 constitutes.Because cabinet 3 manufacturing tolerances are the little deviation of reflector position particularly, the picture run-off the straight of light engine 4 projection on screen is caused in the capital, trapezoidal distortion, or phenomenon such as clear subregion, subregion is unintelligible, this mainly is because due to light engine 4 installation sites and design attitude different, so just requires back projection light engine 4 to have the relative adjusting mechanism that can finely tune with cabinet 3 positions.
As shown in Figure 2, this system authority has been formed a complete engine adjustment fixed system with the screw rod governor motion that is fixed on the cabinet 3.
The utility model adopts hemisphere sphere contact friction slide construction to realize that the space multiple degrees of freedom of engine adjusts, and the adjustment that can bow easily, face upward, tilts combines with single or two secondary mirror, adjusts the tilting of screen epigraph, trapezoidal etc.Hemisphere sphere contact friction slide construction is made of two holders up and down, and last day care 8 is a hemisphere convex mechanism, and engaging hole 18 is set up in the bottom of hemisphere convex, so that mesh with following day care 9.Last day care 8 connects with the fixed feet of engine 4, and promptly engine 4 is directly installed in the last day care 8 of adjusting fixed mechanism 5.Following day care 9 is a ball recess, has set up engaging tooth 11 structures in the groove, so that ball recess is meshed with last day care hemisphere support, realizes the relative sliding motion of upper and lower day care along sphere.Following day care 9 is fixed on the cabinet 3 of back reflection projector simultaneously, guaranteed the relative motion of day care up and down like this, becomes the motion with respect to cabinet 3 of the light engine 4 that is fixed on day care 8.Following day care 9 can have a certain size with the fine setting and the pickup groove 6 of cabinet 3, so that realize the level of light engine 4 complete machines and the translational adjustment of vertical direction.
Because having adopted sphere to slide adjusts, in the slip adjustment process, the centre of sphere that slides remains unchanged, and can reduce the image size that causes owing to the adjustment process change in location or the variation of focusing aspect so effectively, guarantees constant or few change of the projection centre in the adjustment process effectively.
In order to carry out the fine setting of engine, the utility model has also designed micro-tensioning system, promotes to go up day care adjusting bracket, the locus of realizing the minute adjustment engine by the closely-pitched screw rod that is fixed on the cabinet 3.
Adjusting mechanism tighten up be in course of adjustment and upper and lower two the holder the hemisphere slide mechanisms combine.In last day care 8 mechanisms, crotch and pickup groove tighten up usefulness after adjusting light engine 4 positions.Wherein tighten up with screw rod and nut pressing mode, cooperate spring washer to tighten up, so that compress whole day care and the engine gone up that does not tighten up.Simultaneously, carry out slidably by subiculum engaging tooth 11 again between the whole adjustment fixed mount 5 and connect, guarantee that upper and lower day care is linked together, upper and lowerly do not separate, and can only carry out the motion on the sphere.Following day care by fine setting with tighten up hole 16 and cabinet 3 tightens up, but can on the size that tightens up hole 16, take suitable spacious and comfortable degree, so that carry out the mobile of level and projecting direction.
Adjusting mechanism air-cooled mainly contains two parts to be formed, and air vent 13 has all been opened at the center of the frame of day care spherical adjustment up and down, and this air vent 13 just in time links to each other with the bottom of the main air-cooled passway liquid crystal board (positive square glass prism) of engine 4.Descend simultaneously the air channel interface 17 of day care spherical adjustment frame also to link to each other with a square air channel 7, this air channel 7 finally joins with a centrifugal fan.No matter guaranteed this spherical adjustment frame like this at which kind of adjusting position, the wind of centrifugal fan can be through the direct key positions in the cooling light engine 4 that will cool off in air channel 7, for example, and the position of three liquid crystal boards of three-chip type TFT-LCD.
Claims (4)
1, a kind of liquid crystal rear-projection optical engine is adjusted fastening system mechanism, it is characterized in that it has multiple degrees of freedom spatial image micro-regulating mechanism, shock resistance tightens up mechanism and air cooling system.
2, a kind of liquid crystal rear-projection optical engine according to claim 1 is adjusted fastening system mechanism, it is characterized in that: to be hemisphere sphere contact friction slide construction be made of two day cares up and down said multiple degrees of freedom space adjusting mechanism, last day care (8) is a hemisphere convex mechanism, engaging hole (18) is set up in the bottom of hemisphere convex, mesh with following day care (9), last day care (8) connects with the fixed feet of engine (4), be that engine (4) is directly installed in the last day care (8) of adjusting fixed mechanism (5), following day care (9) is a ball recess, set up engaging tooth (11) structure in the groove, ball recess is meshed with last day care hemisphere support, and following day care (9) is fixed on the cabinet (3) of back reflection projector simultaneously.
3, a kind of liquid crystal rear-projection optical engine according to claim 1 is adjusted fastening system mechanism, it is characterized in that: said shock resistance tightens up mechanism and is in course of adjustment and the hemisphere slide mechanism of upper and lower two day cares combines, adopt between crotch in last day care (8) mechanism and pickup groove and the light engine (4) with screw rod and nut, cooperate the spring washer pressing mode to tighten up, adjust fixed mount (5) and carry out with subiculum engaging tooth (11) and slidably connects, following day care is by finely tuning and tightening up hole (16) and cabinet (3) tightens up.
4, a kind of liquid crystal rear-projection optical engine according to claim 1 is adjusted fastening system mechanism, it is characterized in that: said air cooling system mainly contains two parts and forms, air vent (13) has all been opened at the center of the frame of day care spherical adjustment up and down, and this air vent (13) just in time links to each other with the bottom of the positive square glass prism liquid crystal board in main air-cooled passway of engine (4), descend simultaneously the air channel interface (17) of day care spherical adjustment frame also to link to each other with a square air channel (7), this air channel (7) are final to join with a centrifugal fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320109377 CN2711773Y (en) | 2003-10-28 | 2003-10-28 | LCD back projection optical engine adjusting fixing system mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320109377 CN2711773Y (en) | 2003-10-28 | 2003-10-28 | LCD back projection optical engine adjusting fixing system mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2711773Y true CN2711773Y (en) | 2005-07-20 |
Family
ID=36192877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320109377 Expired - Fee Related CN2711773Y (en) | 2003-10-28 | 2003-10-28 | LCD back projection optical engine adjusting fixing system mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2711773Y (en) |
-
2003
- 2003-10-28 CN CN 200320109377 patent/CN2711773Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |