CN1629721A - Dustproof construction for projected display and projected display with said dustproof construction - Google Patents
Dustproof construction for projected display and projected display with said dustproof construction Download PDFInfo
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- CN1629721A CN1629721A CN 200310121413 CN200310121413A CN1629721A CN 1629721 A CN1629721 A CN 1629721A CN 200310121413 CN200310121413 CN 200310121413 CN 200310121413 A CN200310121413 A CN 200310121413A CN 1629721 A CN1629721 A CN 1629721A
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- crystal board
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Abstract
This invention provides an anti-dust structure of a project display and a project display with the anti-dust structure including a first anti-dust frame, a second anti-dust frame and a mirror stand corresponding to a LC plate, a wave plate and a beam splitter separately. The first one is set on the light outgoing face of the LC plate containing a hollow rectangular frame body surrounding the LC plate, a ring groove is formed at the side of the frame body with the slot towards the wave plate. The second anti-dust frame includes a hollow frame body with the wave plate inserted in it and a ring anti-dust wall formed at its side toward the first frame with corresponding grooves.
Description
Technical field
The invention belongs to display accessory structure and display, particularly a kind of projection display that is used for the dustproof construction of the projection display and has dustproof construction.
Background technology
Along with the progress of lcd technology, the liquid crystal board that is applied in compact projection display not only size need reach miniaturization, and still is devoted to the specification of high picture element, high-res aspect picture element, to present preferable visual effect.
The liquid crystal board picture element pitch smaller of specification like this, therefore, be attached on the pollutants such as dust fall on the optical elements such as liquid crystal board, ripple plate or spectroscope in the projection display, just the projection optics quality caused significant impact, make the projection image spot or reduction overall brightness occur.
The common projection display this utilize the foam plug to be located at the interior heat radiation air intake vent place of display, with bulky grain dirt bits in the filtered air.The dustproof mode that this kind commonly used is difficult to not only prevent that granule dirt bits from entering, and effect is unclear, and foam material itself is easily because of storing the improper pollution source that become.
Summary of the invention
The purpose of this invention is to provide a kind of can reaching really prevents dust effect and can be made for the projection display that rotates the dustproof construction of adjusting that is used for the projection display and have dustproof construction.
The present invention comprises the first dustproof frame, second dustproof frame and the microscope base that corresponds respectively to liquid crystal board, ripple plate and spectroscope and assemble in regular turn; The first dustproof frame is installed in the light of liquid crystal board and appears, and it comprises that central hollow out and frame enclose the rectangle frame body of liquid crystal board, form in the frame body side of the first dustproof frame notch towards the ripple plate around the shape groove; The second dustproof frame comprises central hollow out and is embedded at wherein frame body for the ripple plate, form in the frame body side of the second dustproof frame towards the corresponding projection of groove of the first dustproof frame and adjustable rotation be embedded wherein around the dustproof wall of shape.
Wherein:
A kind of projection display with dustproof construction, it comprise for coloured light penetrate or the spectroscope that reflects, be arranged at the spectroscope respective side and for the liquid crystal board of corresponding light modulation, be located in ripple plate and dustproof construction between spectroscope and the liquid crystal board; Dustproof construction comprises the first dustproof frame, second dustproof frame and the microscope base that corresponds respectively to liquid crystal board, ripple plate and spectroscope and assemble in regular turn; The first dustproof frame is installed in the light of liquid crystal board and appears, and it comprises that central hollow out and frame enclose the rectangle frame body of liquid crystal board, form in the frame body side of the first dustproof frame notch towards the ripple plate around the shape groove; The second dustproof frame comprises central hollow out and is embedded at wherein frame body for the ripple plate, form in the frame body side of the second dustproof frame towards the corresponding projection of groove of the first dustproof frame and adjustable rotation be embedded wherein around the dustproof wall of shape.
The frame body edges place symmetry of the first dustproof frame is prominent establish several pieces towards and the contact second dustproof frame so as to providing the permanent shell fragment that pastes elastic force towards the microscope base top to the second dustproof frame.
The frame body edges place of the first dustproof frame is provided with microscler perforation shape spacing hole; The frame body edges place of the second dustproof frame is towards the corresponding projection in the framework body upper limit hole of the first dustproof frame and wear wherein locating part with rotation-sliding in its length range.
Microscope base is provided with several towards liquid crystal board projection and the fixed leg fixed with its gummed.
Because the present invention comprises the first dustproof frame, second dustproof frame and the microscope base that corresponds respectively to liquid crystal board, ripple plate and spectroscope and assemble in regular turn; The first dustproof frame is installed in the light of liquid crystal board and appears, and it comprises that central hollow out and frame enclose the rectangle frame body of liquid crystal board, form in the frame body side of the first dustproof frame notch towards the ripple plate around the shape groove; The second dustproof frame comprises central hollow out and is embedded at wherein frame body for the ripple plate, form in the frame body side of the second dustproof frame towards the corresponding projection of groove of the first dustproof frame and adjustable rotation be embedded wherein around the dustproof wall of shape.During use, the second dustproof frame, ripple plate and the first dustproof frame are located between microscope base and the liquid crystal board in regular turn, carry out the modulation reflection from pass through in regular turn ripple plate and liquid crystal board of spectroscope for coloured light.And utilize the first dustproof frame around shape groove and the second dustproof frame around the adjustable fit mutually rotatably of the dustproof wall of shape, reach the dustproof effect that ripple plate orientation adjustment and liquid crystal board and ripple plate interval dust-tight is considered to be worth doing.Push up to applying microscope base junction by the second dustproof frame simultaneously, reach the dustproof effect that the dirt bits are difficult to enter between ripple plate and spectroscope, the present invention not only element assembling easily, overcome the dustproof clear shortcoming of dustproof effect that causes of foam in the past, but and have the effect of harmonic plate simultaneously concurrently; Not only can reach dustproof effect really, and can be made for rotation adjustment, thereby reach purpose of the present invention.
Description of drawings
Fig. 1, for decomposition texture schematic isometric of the present invention.
Fig. 2, for structural representation side view of the present invention.
Fig. 3, be A-A cut-open view among Fig. 2.
Embodiment
As Fig. 1, Fig. 2, shown in Figure 3, the present invention for so that light beam from the projection display (only showing wherein a shade among Fig. 2) that wherein is separated into several coloured light 10, its comprise be cube and for predetermined coloured light 10 wherein penetrate or the spectroscope 2 that reflects, along coloured light 10 direct of travels be arranged at the ripple plate 3 of spectroscope 2 respective side in regular turn, for the liquid crystal board 4 and the dustproof construction of corresponding light modulation.Ripple plate 3 is located between spectroscope 2 and the liquid crystal board 4.
Dust guard comprises and corresponds respectively to first dustproof frame 5, second dustproof frame 6 and the microscope base 7 that liquid crystal board 4, ripple plate 3 and spectroscope 2 assemble in regular turn.
The first dustproof frame 5 is installed in the light of liquid crystal board 4 and appears 41, it comprise central hollow out and frame enclose the rectangle frame body 51 of liquid crystal board 4, four respectively from 51 liang of opposition side edge of frame body with the hook-shaped angle that extends towards liquid crystal board 4 directions and fix with liquid crystal board 4 52, two from frame body 51 away from the side of liquid crystal board 4 at interval projection and form notch towards ripple plate 3 around the ring wall 53 of shape groove 531, in twos relatively respectively symmetry be based in two spring plate units 54 and two microscler perforation shape spacing holes 55 of frame body 51 edges.
Each spring plate unit 54 comprise two courts away from liquid crystal board 4 and towards and the dustproof frame 6 direction projections of contact second in order to the shell fragment 541 of the pushing tow second dustproof frame 6.Shell fragment 541 provides and makes the elastic force of second dustproof frame 6 perseverances towards microscope base 7 direction contacts.
In addition, frame body 51 architraves four corners of the first dustproof frame 5 are scarce concavity so that four corner correspondences of liquid crystal board 4 expose so that with fixedly winding of microscope base 7.
The second dustproof frame 6 comprises central hollow out and is embedded at wherein frame body 61, groove 531 corresponding projections from frame body 61 towards the first dustproof frame 5 and adjustable rotation for ripple plate 3 and is embedded wherein two spacing holes, 55 corresponding projections towards the first dustproof frame 5 and wear wherein locating part 63 from frame body 61 edges respectively around the dustproof wall 62 of shape and two.Whereby, the second dustproof frame 6 can be in spacing hole 5 length ranges rotation-sliding, and adjust the orientation of ripple plate 3.
Microscope base 7 is cube frame shape and defines for spectroscope 2 and is fixedly arranged on open space 70 in it, wears for coloured light 10 and penetrates or reflect turnover spectroscope 2.Microscope base 7 comprises that assembling face 71 and four self assembly face 71 4 corners of the contiguous second dustproof frame 6 reveal corner projection and the fixed leg 72 fixed with its gummed all round towards liquid crystal board 4 in the same way with spectroscope 2 coloured light 10 outgoing planes.
Whereby, the second dustproof frame 6, ripple plate 3 and the first dustproof frame 5 are located between microscope base 7 and the liquid crystal board 4 in regular turn, carry out modulation and reflect from pass through in regular turn ripple plate 3 and liquid crystal board 4 of spectroscope 2 for coloured light 10.
As from the foregoing, the present invention utilizes the dustproof wall of the ring wall 53 of the first dustproof frame 5 and the second dustproof frame 6 62 adjustable mutual rotatably fits, reaches ripple plate 3 orientation adjustment and liquid crystal board 4 and the ripple plate 3 dustproof effect of dust-tight bits at interval.Several pieces shell fragments 541 by the first dustproof frame 5 push up the second dustproof frame 6 to applying microscope base 7 junctions 71 simultaneously, reach the dustproof effect that 2 dirt bits of ripple plate 3 and spectroscope are difficult to enter.
Conclude above-mentioned, the present invention not only element assembling easily, overcome the dustproof clear shortcoming of dustproof effect that causes of foam in the past, but and have the effect of harmonic plate 3 simultaneously concurrently, can reach purpose of the present invention really.
Claims (8)
1, a kind of dustproof construction that is used for the projection display, it is applicable to spectroscope, the liquid crystal board that is arranged at spectroscope respective side and the corresponding light modulation of confession that comprises confession coloured light and penetrate or reflect, the projection display that is located in the ripple plate between spectroscope and the liquid crystal board; It is characterized in that it comprises the first dustproof frame, second dustproof frame and the microscope base that corresponds respectively to liquid crystal board, ripple plate and spectroscope and assemble in regular turn; The first dustproof frame is installed in the light of liquid crystal board and appears, and it comprises that central hollow out and frame enclose the rectangle frame body of liquid crystal board, form in the frame body side of the first dustproof frame notch towards the ripple plate around the shape groove; The second dustproof frame comprises central hollow out and is embedded at wherein frame body for the ripple plate, form in the frame body side of the second dustproof frame towards the corresponding projection of groove of the first dustproof frame and adjustable rotation be embedded wherein around the dustproof wall of shape.
2, the dustproof construction that is used for the projection display according to claim 1, it is characterized in that the frame body edges place symmetry of the described first dustproof frame prominent establish several pieces towards and the contact second dustproof frame so as to providing the permanent shell fragment that pastes elastic force towards the microscope base top to the second dustproof frame.
3, the dustproof construction that is used for the projection display according to claim 1 and 2 is characterized in that the frame body edges place of the described first dustproof frame is provided with microscler perforation shape spacing hole; The frame body edges place of the second dustproof frame is towards the corresponding projection in the framework body upper limit hole of the first dustproof frame and wear wherein locating part with rotation-sliding in its length range.
4, the dustproof construction that is used for the projection display according to claim 1 is characterized in that described microscope base is provided with several towards liquid crystal board projection and the fixed leg fixed with its gummed.
5, a kind of projection display with dustproof construction, it comprise for coloured light penetrate or the spectroscope that reflects, be arranged at the spectroscope respective side and for the liquid crystal board of corresponding light modulation, be located in ripple plate and dustproof construction between spectroscope and the liquid crystal board; It is characterized in that described dustproof construction comprises the first dustproof frame, second dustproof frame and the microscope base that corresponds respectively to liquid crystal board, ripple plate and spectroscope and assemble in regular turn; The first dustproof frame is installed in the light of liquid crystal board and appears, and it comprises that central hollow out and frame enclose the rectangle frame body of liquid crystal board, form in the frame body side of the first dustproof frame notch towards the ripple plate around the shape groove; The second dustproof frame comprises central hollow out and is embedded at wherein frame body for the ripple plate, form in the frame body side of the second dustproof frame towards the corresponding projection of groove of the first dustproof frame and adjustable rotation be embedded wherein around the dustproof wall of shape.
6, the projection display with dustproof construction according to claim 5, it is characterized in that the frame body edges place symmetry of the described first dustproof frame prominent establish several pieces towards and the contact second dustproof frame so as to providing the permanent shell fragment that pastes elastic force towards the microscope base top to the second dustproof frame.
7,, it is characterized in that the frame body edges place of the described first dustproof frame is provided with microscler perforation shape spacing hole according to the claim 5 or the 6 described projection displays with dustproof construction; The frame body edges place of the second dustproof frame is towards the corresponding projection in the framework body upper limit hole of the first dustproof frame and wear wherein locating part with rotation-sliding in its length range.
8, the projection display with dustproof construction according to claim 5 is characterized in that described microscope base is provided with several towards liquid crystal board projection and the fixed leg fixed with its gummed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310121413 CN1629721A (en) | 2003-12-16 | 2003-12-16 | Dustproof construction for projected display and projected display with said dustproof construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310121413 CN1629721A (en) | 2003-12-16 | 2003-12-16 | Dustproof construction for projected display and projected display with said dustproof construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1629721A true CN1629721A (en) | 2005-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200310121413 Pending CN1629721A (en) | 2003-12-16 | 2003-12-16 | Dustproof construction for projected display and projected display with said dustproof construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1629721A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102362221A (en) * | 2009-03-24 | 2012-02-22 | Nec显示器解决方案株式会社 | Dustproof structure of image generation device, and projection display device |
-
2003
- 2003-12-16 CN CN 200310121413 patent/CN1629721A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102362221A (en) * | 2009-03-24 | 2012-02-22 | Nec显示器解决方案株式会社 | Dustproof structure of image generation device, and projection display device |
| CN102362221B (en) * | 2009-03-24 | 2014-08-06 | Nec显示器解决方案株式会社 | Dustproof structure of image generation device, and projection display device |
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| ASS | Succession or assignment of patent right |
Owner name: JUNLIN TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: PROKIA TECHNOLOGY CO., LTD. Effective date: 20070126 |
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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: 20070126 Address after: Taipei County of Taiwan Province Applicant after: DigiMedia Technology Co., Ltd. Address before: Tainan County of Taiwan Province Applicant before: Prokia Technology Co., Ltd. |
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| AD01 | Patent right deemed abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |