CN202472229U - Variable-ratio frame type projection screen - Google Patents
Variable-ratio frame type projection screen Download PDFInfo
- Publication number
- CN202472229U CN202472229U CN 201220081354 CN201220081354U CN202472229U CN 202472229 U CN202472229 U CN 202472229U CN 201220081354 CN201220081354 CN 201220081354 CN 201220081354 U CN201220081354 U CN 201220081354U CN 202472229 U CN202472229 U CN 202472229U
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- Prior art keywords
- projection screen
- cloth beam
- cloth
- shell
- type projection
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- 239000004744 fabric Substances 0.000 claims description 89
- 238000013016 damping Methods 0.000 claims description 27
- 239000003292 glue Substances 0.000 claims description 27
- 230000000694 effects Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 2
- 241000322338 Loeseliastrum Species 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Overhead Projectors And Projection Screens (AREA)
Abstract
The utility model discloses a variable-ratio frame type projection screen, which comprises a shell, a projection screen curtain, curtain scrolls and a driving mechanism, wherein the curtain scrolls are arranged in the shell; the projection screen curtain is wound on the curtain scrolls; the driving mechanism drives the curtain scrolls to rotate; the projection screen curtain comprises more than two projection units; each projection unit is matched with a display area in the shell; and white display curtains with different length-width ratios are arranged in the middles of the projection units. When the variable-ratio frame type projection screen is used, the length-width ratio of the display area of the projection screens can be changed by switching different projection units, so an optimal display effect can be achieved regardless of the type of a played video, and a user does not feel uncomfortable.
Description
Technical field
The utility model discloses a kind of projection screen, particularly a kind of variable ratio frame-type projection screen.
Background technology
Continuous development along with display technique; Various display device engender among people's life; In recent years; LCD display replacement gradually CRT monitor in people life, use more and more widely, main display device such as televisor, computer monitor have almost become the indispensable household electrical appliances of every household.But, be that the LCD display or the size of CRT monitor all are difficult to accomplish very big, basically 55 inches be bigger, surpass 100 inches display or adopt the form of mosaic screen, or will spend very high cost to realize, inadequately reality.Along with the development of shadow casting technique, Projection Display enters into ordinary family gradually, especially in developed regions such as America and Europes; General Projection Display all is to adopt projector that picture is rendered on the projection cloth to show, and present projection cloth all to be the calico of a fixed aspect ratio process, still; The standard of looking screen at present is different, it is different to be accompanied by the length breadth ratio that video shows, common video length breadth ratio is like 16:9,16:10,4:3 or the like; And the length breadth ratio of projection cloth is fixed; So just make that projection cloth is understood some white space, causes people visual uncomfortable when video projects on the projection cloth.
Summary of the invention
Fix to the above-mentioned projection cloth length breadth ratio of mentioning of the prior art; When the video of the different length breadth ratios of projection; Can cause the visual uncomfortable shortcoming of people, the utility model provides a kind of new variable ratio frame-type projection screen, and it changes the length breadth ratio of projection cloth viewing area through the different projecting cell of conversion; When making it no matter play what video, can reach best display effect.
The technical scheme that its technical matters that solves the utility model adopts is: a kind of variable ratio frame-type projection screen; Comprise shell, projection screen, cloth beam and driving mechanism, the cloth beam setting in the enclosure, projection screen is wound on the cloth beam; The drive mechanism cloth beam rotates; Projection screen comprises plural projecting cell, and each projecting cell all adapts with the interior viewing area of shell, is that the different white of length breadth ratio shows cloth in the middle of each projecting cell.
The technical scheme that its technical matters that solves the utility model adopts further comprises:
The demonstration cloth one or both sides of described each projecting cell are the cloth that blocks of black, and through the cloth that blocks of different in width is set, adjustment shows the length breadth ratio of cloth.
Described cloth beam is provided with two, and two cloth beams are installed in the shell above and below respectively, and the cloth beam that is installed in the shell top is last cloth beam, and the cloth beam that is installed in the shell below is following cloth beam, and the projection screen two ends respectively are wound on the cloth beam.
Described driving mechanism is arranged on the shell top, and cloth beam rotates on the drive mechanism, and following cloth beam place is provided with the pulling spring of cloth beam rotation down.
The described cloth beam other end of going up is provided with a fixed drive head, is provided with damping glue corresponding to the driving head position in the shell, and driving head is inserted in the damping glue.
Be fixed with damping glue corresponding to the driving mechanism position in the described shell, driving mechanism is inserted in the damping glue.
Be fixed with damping glue respectively corresponding to following cloth beam end positions place in the described shell, following cloth beam two ends are inserted into respectively in the damping glue.
Be provided with damping glue core between described driving head and the damping glue.
Described damping glue is fixedly mounted on the shell through machine screws.
Described driving mechanism adopts tube shaped electric machine, and projection screen also comprises the wiring board that drives tube shaped electric machine, and wiring board drives tube shaped electric machine and rotates, and the wiring board outside is provided with the wiring board plastic box of protection circuit plate.
The beneficial effect of the utility model is: the utility model in use; Can change the length breadth ratio of projection cloth viewing area through the different projecting cell of conversion; When making it no matter play what video; Can reach best display effect, can not cause any uncomfortable feeling the user.
To combine accompanying drawing and embodiment that the utility model is further specified below.
Description of drawings
Fig. 1 is the utility model decomposing state synoptic diagram as a result.
Among the figure, 1-screw, 2-damping glue, 3-damping glue core, 4-driving head, 5-cloth beam, 6-curtain, 7-spring, 8-tube shaped electric machine, 9-power lead, 10-plastic box, 11-wiring board, 12-shell.
Embodiment
Present embodiment is the utility model preferred implementation, and other all its principles are identical with present embodiment or approximate with basic structure, all within the utility model protection domain.
Please referring to accompanying drawing 1, the utility model main body is a rectangular container 12, and 12 pairs of the utility model of shell are played a supporting role; Shell 12 inside are the viewing area, and shell 12 internal fixation are equipped with cloth beam 5, and cloth beam 5 is provided with two in the present embodiment; About in the of 12 two ends to be separately positioned on shell; In the utility model it is defined as cloth beam and following cloth beam respectively, curtain 6 two ends are wound on respectively on cloth beam and the following cloth beam, and last cloth beam adopts the aluminium light pipe to process with following cloth beam.In the present embodiment, curtain 6 is provided with a plurality of display units, each display unit respectively with shell 12 on the viewing area adapt; The number of display unit can be set according to actual needs; Can be two, three or more a plurality of, the white in the middle of each display unit includes and is positioned at shows cloth and is positioned at the white cloth that blocks that shows the cloth both sides that the width-adjustable joint white of blocking cloth through adjusting shows the length breadth ratio that cloth is regional; Be on the different display unit to block the cloth width different; Through switching different display unit, the white of replaceable different length breadth ratios shows cloth, promptly satisfies the broadcast request of different video.In the present embodiment, be respectively equipped with to show the cloth both sides in white that to block cloth be that example describes, during practical implementation, also can show that cloth one side setting blocks cloth in white, effect is identical, and can not be provided with at the maximum display unit place of length breadth ratio and to block cloth.
In the present embodiment, be provided with driving mechanism corresponding to last cloth beam position, cloth beam rotates on the drive mechanism; In the present embodiment, driving mechanism adopts tube shaped electric machine 8, is provided with wiring board 11 in the shell 12; Be used to control tube shaped electric machine 8 work; Wiring board 11 outsides are provided with plastic box 10, are used for protection circuit plate 11, are connected with the power lead 9 that is used to supply power on the wiring board 11.In the present embodiment, last cloth beam one end is provided with tube shaped electric machine 8, and tube shaped electric machine 8 drives goes up the cloth beam rotation, and the last cloth beam other end is installed with driving head 4.Position corresponding to tube shaped electric machine 8 and driving head 4 in the shell 12 is installed with damping glue 2 respectively, and tube shaped electric machine 8 is inserted into respectively in the damping glue 2 with driving head 4, can reduce vibration and noise in curtain 6 winding process through damping glue 2.In the present embodiment, damping glue 2 is fixedly mounted in the shell 12 through tack machine screws 1.In the present embodiment, following cloth beam two ends also are respectively equipped with damping glue 2, and following cloth beam two ends are inserted into respectively in the damping glue 2, and damping glue 2 is fixedly mounted in the shell 12 through tack machine screws 1.In the present embodiment, be provided with the spring 7 that is used to spur down the cloth beam rotation in the following cloth beam.
The utility model when its forward switching display unit, can drive through tube shaped electric machine 8 and go up the cloth beam rotation in use; Projection screen curtain 6 is wound on the cloth beam, thereby switches a display unit, simultaneously; Curtain 6 pullings cloth beam are down rotated, and deformation takes place following cloth beam pulling spring 7; When its reverse switching display unit, can make tube shaped electric machine 8 backward rotation, at this moment, spring 7 pullings cloth beam are down rotated, and curtain 6 is wound on down on the cloth beam, realize the switching of display unit.
The utility model can change the length breadth ratio of projection cloth viewing area through the different projecting cell of conversion in use, when making it no matter play what video, can reach best display effect, can not cause any uncomfortable feeling to the user.
Claims (10)
1. variable ratio frame-type projection screen; Comprise shell, projection screen, cloth beam and driving mechanism, the cloth beam setting in the enclosure, projection screen is wound on the cloth beam; The drive mechanism cloth beam rotates; It is characterized in that: described projection screen comprises plural projecting cell, and each projecting cell all adapts with the interior viewing area of shell, is that the different white of length breadth ratio shows cloth in the middle of each projecting cell.
2. variable ratio frame-type projection screen according to claim 1 is characterized in that: the demonstration cloth one or both sides of described each projecting cell are the cloth that blocks of black, and through the cloth that blocks of different in width is set, adjustment shows the length breadth ratio of cloth.
3. variable ratio frame-type projection screen according to claim 1; It is characterized in that: described cloth beam is provided with two; Two cloth beams are installed in the shell above and below respectively; The cloth beam that is installed in the shell top is last cloth beam, and the cloth beam that is installed in the shell below is following cloth beam, and the projection screen two ends respectively are wound on the cloth beam.
4. variable ratio frame-type projection screen according to claim 3 is characterized in that: described driving mechanism is arranged on the shell top, and cloth beam rotates on the drive mechanism, and following cloth beam place is provided with the pulling spring of cloth beam rotation down.
5. variable ratio frame-type projection screen according to claim 3 is characterized in that: the described cloth beam other end of going up is provided with a fixed drive head, is provided with damping glue corresponding to the driving head position in the shell, and driving head is inserted in the damping glue.
6. variable ratio frame-type projection screen according to claim 3 is characterized in that: be fixed with damping glue corresponding to the driving mechanism position in the described shell, driving mechanism is inserted in the damping glue.
7. variable ratio frame-type projection screen according to claim 3 is characterized in that: be fixed with damping glue respectively corresponding to following cloth beam end positions place in the described shell, following cloth beam two ends are inserted into respectively in the damping glue.
8. variable ratio frame-type projection screen according to claim 5 is characterized in that: be provided with damping glue core between described driving head and the damping glue.
9. according to claim 5 or 6 or 7 described variable ratio frame-type projection screens, it is characterized in that: described damping glue is fixedly mounted on the shell through machine screws.
10. according to any described variable ratio frame-type projection screen in the claim 1 to 8; It is characterized in that: described driving mechanism adopts tube shaped electric machine; Projection screen also comprises the wiring board that drives tube shaped electric machine; Wiring board drives tube shaped electric machine and rotates, and the wiring board outside is provided with the wiring board plastic box of protection circuit plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220081354 CN202472229U (en) | 2012-03-07 | 2012-03-07 | Variable-ratio frame type projection screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220081354 CN202472229U (en) | 2012-03-07 | 2012-03-07 | Variable-ratio frame type projection screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202472229U true CN202472229U (en) | 2012-10-03 |
Family
ID=46920375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220081354 Expired - Lifetime CN202472229U (en) | 2012-03-07 | 2012-03-07 | Variable-ratio frame type projection screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202472229U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104360576A (en) * | 2014-12-08 | 2015-02-18 | 窦志刚 | Vertically and horizontally variable amplitude frame projection screen |
| WO2016091118A1 (en) * | 2014-12-08 | 2016-06-16 | 窦志刚 | Variable-amplitude frame projection screen |
| CN106094411A (en) * | 2016-07-29 | 2016-11-09 | 马鞍山星球银幕科技有限公司 | A screen black border system and screen state switching method |
| CN107839377A (en) * | 2016-07-21 | 2018-03-27 | 海宁永欣科技咨询有限公司 | Multifunctional commerce blank |
| CN108989781A (en) * | 2018-09-12 | 2018-12-11 | 陕西理工大学 | A kind of projection arrangement based on image procossing |
-
2012
- 2012-03-07 CN CN 201220081354 patent/CN202472229U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104360576A (en) * | 2014-12-08 | 2015-02-18 | 窦志刚 | Vertically and horizontally variable amplitude frame projection screen |
| WO2016091118A1 (en) * | 2014-12-08 | 2016-06-16 | 窦志刚 | Variable-amplitude frame projection screen |
| CN107839377A (en) * | 2016-07-21 | 2018-03-27 | 海宁永欣科技咨询有限公司 | Multifunctional commerce blank |
| CN106094411A (en) * | 2016-07-29 | 2016-11-09 | 马鞍山星球银幕科技有限公司 | A screen black border system and screen state switching method |
| CN108989781A (en) * | 2018-09-12 | 2018-12-11 | 陕西理工大学 | A kind of projection arrangement based on image procossing |
| CN108989781B (en) * | 2018-09-12 | 2020-11-24 | 陕西理工大学 | A projection device based on image processing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121003 |
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| CX01 | Expiry of patent term |