CN1384665A - Back projector and its shielding and fixing unit and method thereof - Google Patents
Back projector and its shielding and fixing unit and method thereof Download PDFInfo
- Publication number
- CN1384665A CN1384665A CN 01117724 CN01117724A CN1384665A CN 1384665 A CN1384665 A CN 1384665A CN 01117724 CN01117724 CN 01117724 CN 01117724 A CN01117724 A CN 01117724A CN 1384665 A CN1384665 A CN 1384665A
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- China
- Prior art keywords
- screen
- dovetail groove
- fixture
- side plate
- projection device
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- Projection Apparatus (AREA)
Abstract
The back projection equipment screen fixture includes dovetail slots formed in the width direction of screen edge and inwards inclined from front to back; wedged blocks extending from the side plate and with shape, size and position corresponding to the doventail slots for insertion. Thus, the screen is fixed to the side plates. The fixing method and the back projection equipment with the fixture are also provided. The present invention is suitable for display units to be assembled to form the TV wall.
Description
The present invention relates to a kind of screen fixture of rear-projection equipment, particularly can be used for being spliced into the screen fixture and the fixing means of rear-projection equipment of the display unit of video wall, and the rear-projection equipment that has this fixture.
Rear-projection equipment as shown in Figure 1, it comprises: with display image projection screen 1 thereon; Fixedly connected to support the side plate 2 of screen around screen 1 periphery and with screen; Be used to produce and to the projector 3 of screen projects images.The screen of present rear-projection equipment adopts side super thin metal frame fixed form, the straight wedge in side and side plate riveted and fixed mode and side ladder metal edge frame technique for fixing etc. more, after the rear-projection equipment of these screen fixed forms is spliced into video wall, between display unit and display unit, leave the frame of not imaging, can not realize the seamless spliced and ultra-fine seam splicing of video wall, simultaneously these screen fixed forms also exist back projected picture had slightly and block, and weakness such as bonding strength is low.
The purpose of this invention is to provide a kind of rear-projection device screen fixture, make screen not have the optics frame, the whole front surface of display screen all can the Display projector picture.
For achieving the above object, the invention provides a kind of rear-projection device screen fixture, this rear-projection equipment comprises: with display image projection screen thereon; Fixedly connected to support the side plate of screen around the screen periphery and with screen; Be used to produce and to the projector of screen projects images.Wherein, this fixture comprises: the dovetail groove that extends to form along thickness direction at the edge of this screen, and the bottom surface of this dovetail groove is tilted to the screen inboard by screen edge on the direction of back along the front from screen; From the voussoir that the distal process of fixedlying connected with screen of side plate stretches out, the dovetail groove of the shape of this voussoir, size and location and screen edge is corresponding, makes it can insert in the corresponding dovetail groove, thereby screen is fixedlyed connected with side plate.
The present invention also provides a kind of rear-projection device screen fixing means, and this rear-projection equipment comprises: with display image projection screen thereon; Fixedly connected to support the side plate of screen around the screen periphery and with screen; Be used to produce and to the projector of screen projects images.Wherein, this fixing means comprises: the edge at this screen extends to form dovetail groove along thickness direction, and the bottom surface of this dovetail groove is tilted to the screen inboard by screen edge on the direction of back along the front from screen; Make corresponding voussoir from an end of fixedlying connected with screen of side plate, the dovetail groove of the shape of this voussoir, size and location and screen edge is corresponding, makes it can insert in the corresponding dovetail groove; The dovetail groove of screen edge is cooperated with voussoir on the side plate, thereby both are fixedly connected with it.
The present invention also provides the rear-projection equipment of the fixture with the invention described above.
The advantage of fixture of the present invention is, use the display screen of the rear-projection equipment of fixture of the present invention not have the optics frame, the whole front surface of display screen is energy Display projector picture all, screen and side plate bonding strength height, ageing-resistant, be widely used in the splicing of large scale display unit video wall, can realize seamless spliced.
From becoming clearer to the description of the preferred embodiments of the present invention feature of the present invention, advantage, in the accompanying drawing below with reference to accompanying drawing:
Fig. 1 is the structural representation of rear-projection equipment;
Fig. 2 is the view from the screen of observing later of the present invention of screen;
Fig. 3 is the vertical view of screen of the present invention, and promptly B is to view;
Fig. 4 is the cutaway view of screen of the present invention along the C-C direction of Fig. 2;
Fig. 5 is the schematic diagram of the rear-projection equipment of employing screen fixture of the present invention.
Following with reference to description of drawings the preferred embodiments of the present invention.
Fig. 2 is the back from the screen of rear-projection equipment, i.e. the opposite direction of the A direction among Fig. 1, the view of the screen of observation; Fig. 3 is the vertical view of screen of the present invention, and promptly B is to view; Fig. 4 is the cutaway view of screen of the present invention along the C-C direction of Fig. 2; Fig. 5 is the schematic diagram of the rear-projection equipment of employing screen fixture of the present invention.
The edge that the fixture of the screen 1 of this rear-projection equipment is included in this screen is that A is to the dovetail groove 5 that extends to form along thickness direction, the bottom surface 6 of this dovetail groove 5 is along being tilted to screen is inboard by screen edge from the front of screen to the direction of back (be A to), thereby this bottom surface 6 forms an inside inclination angle beta with screen edge.The width of this dovetail groove bottom surface 6 can be constant, also can be as shown in the figure, along A to diminishing, i.e. d1＞d2; Or along A to becoming big, i.e. d1＜d2.The shape of concrete dovetail groove 5, width size, bottom surface gradient and quantity can be decided according to the parameters such as position of concrete requirement of strength, screen size, projector.
The fixture of the screen 1 of this rear-projection equipment also comprises the voussoir that stretches out from an end 7 of fixedlying connected with screen 1 of side plate 2, the dovetail groove 5 of the shape of this voussoir, size and location and screen edge is corresponding, make it can insert in the corresponding dovetail groove, thereby screen is fixedlyed connected with side plate, as shown in Figure 5.Can be bonding firmly between screen and the side plate by bonding agent, the selection of bonding agent should be according to different selection of material of screen and side plate.Side plate can be metal or nonmetallic materials.
Fig. 5 is the schematic diagram of the rear-projection equipment of employing screen fixture of the present invention.Wherein, preferably make the inside angle of inclination beta in the bottom surface 6 of dovetail groove 5, the rear-projection picture is all arranged to guarantee whole screen front smaller or equal to half of the projectional angle α of projector 3.Use the display screen of the rear-projection equipment of fixture of the present invention not have the optics frame, the whole front of display screen is energy Display projector picture all, and screen and side plate bonding strength height are ageing-resistant, be widely used in the splicing of large scale display unit video wall, can realize seamless spliced.
In the device of the present invention, screen thickness can be 1 millimeter-50 millimeters, and preferred 1 millimeter-30 millimeters, more preferably 1 millimeter-10 millimeters; Side plate thickness can be 1 millimeter-50 millimeters, and preferred 1 millimeter-30 millimeters, more preferably 1 millimeter-10 millimeters; The width of dovetail groove position in front can be 2 millimeters-1500 millimeters; The inclination angle beta of bottom surface can be 10 °-80 °.
In a preferred embodiment of the invention, screen is a high-molecular organic material, and thickness is 6 millimeters, and length is 2245.9 millimeters, and width is 1684.4 millimeters; Side plate is a high-molecular organic material, and thickness is 6 millimeters; The width of dovetail groove is 60 millimeters, and its bottom surface gradient is 45 °; During this embodiment adopted short-focus lens projector rear projection, all screens can the Display projector picture, does not have any optics frame and blocks.
Below invention has been described with reference to preferred embodiment, it is used for explaining and explanation the present invention, rather than limitation of the invention, those skilled in the art carry out equivalent change to the present invention and all belong to scope of the present invention in scope disclosed by the invention.Protection scope of the present invention is determined by appending claims.
Claims (10)
1. rear-projection device screen fixture, this rear-projection equipment comprises: with display image projection screen thereon; Fixedly connected to support the side plate of screen around the screen periphery and with screen; Be used to produce and to the projector of screen projects images; It is characterized in that this fixture comprises: the dovetail groove that extends to form along thickness direction at the edge of this screen, the bottom surface of this dovetail groove is tilted to the screen inboard by screen edge on the direction of back along the front from screen; From the voussoir that the distal process of fixedlying connected with screen of side plate stretches out, the dovetail groove of the shape of this voussoir, size and location and screen edge is corresponding, makes it can insert in the corresponding dovetail groove, thereby screen is fixedlyed connected with side plate.
2. rear-projection device screen fixture as claimed in claim 1 is characterized in that, the width of this dovetail groove diminishes along the direction from the screen front to the back.
3. rear-projection device screen fixture as claimed in claim 1 is characterized in that, the width of this dovetail groove becomes big or constant along the direction from the screen front to the back.
4. rear-projection device screen fixture as claimed in claim 1 is characterized in that, the width of described dovetail groove in the position of screen front is 2 millimeters-1500 millimeters.
5. rear-projection device screen fixture as claimed in claim 1 is characterized in that, inside angle of inclination, described dovetail groove bottom surface is 10 °-80 °.
6. rear-projection device screen fixture as claimed in claim 1 is characterized in that described screen thickness is the 1-50 millimeter.
7. rear-projection device screen fixture as claimed in claim 1 is characterized in that the thickness of described side plate is the 1-50 millimeter.
8. rear-projection device screen fixture as claimed in claim 1 is characterized in that, and is bonding with bonding agent between screen and the side plate.
9. the rear-projection equipment that has the described screen fixture of claim 1.
10. rear-projection device screen fixing means, this rear-projection equipment comprises: with display image projection screen thereon; Fixedly connected to support the side plate of screen around the screen periphery and with screen; Be used to produce and to the projector of screen projects images, it is characterized in that, this fixing means comprises: the edge at this screen extends to form dovetail groove along thickness direction, and the bottom surface of this dovetail groove is tilted to the screen inboard by screen edge on the direction of back along the front from screen; Make corresponding voussoir from an end of fixedlying connected with screen of side plate, the dovetail groove of the shape of this voussoir, size and location and screen edge is corresponding, makes it can insert in the corresponding dovetail groove; The dovetail groove of screen edge pegged graft with the voussoir on the side plate to be cooperated, thereby both are fixedly connected with it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01117724 CN1239018C (en) | 2001-04-29 | 2001-04-29 | Back projector and its shielding and fixing unit and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01117724 CN1239018C (en) | 2001-04-29 | 2001-04-29 | Back projector and its shielding and fixing unit and method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1384665A true CN1384665A (en) | 2002-12-11 |
| CN1239018C CN1239018C (en) | 2006-01-25 |
Family
ID=4662847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01117724 Expired - Fee Related CN1239018C (en) | 2001-04-29 | 2001-04-29 | Back projector and its shielding and fixing unit and method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1239018C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360155A (en) * | 2011-10-13 | 2012-02-22 | 李澄 | Mutually embedded and spliced super large rear projection hard screen |
-
2001
- 2001-04-29 CN CN 01117724 patent/CN1239018C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360155A (en) * | 2011-10-13 | 2012-02-22 | 李澄 | Mutually embedded and spliced super large rear projection hard screen |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1239018C (en) | 2006-01-25 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING GEHUAMEIFUQIN SCIENCE DEVELOPMENT CO., LT Free format text: FORMER OWNER: MEIFUQIN SCIENCE +. TECHNOLOGY SERVICE CENTER, BEIJING Effective date: 20050610 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20050610 Address after: 100078 Beijing city Fengtai District South Sanhuan Road No. 6 Ka A building block 1602 Applicant after: Meifuqin Science &. Technology Service Center, Beijing Address before: 100078, Beijing, Fangzhuang ancient garden, No. 1 District, building 15 Applicant before: Meifuqin Science &. Technology Service Center, Beijing |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060125 Termination date: 20100429 |