CN1892725A - Speech prompting device - Google Patents
Speech prompting device Download PDFInfo
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- CN1892725A CN1892725A CN 200510083408 CN200510083408A CN1892725A CN 1892725 A CN1892725 A CN 1892725A CN 200510083408 CN200510083408 CN 200510083408 CN 200510083408 A CN200510083408 A CN 200510083408A CN 1892725 A CN1892725 A CN 1892725A
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Abstract
The present invention disclose lecture cueing device. It contains one projecting unit, one display screen, said projecting unit projecting light to display screen for imaging; said display screen constituting of plurality of acceptable projection image strip LCD unit, each strip unit connected and having interval.
Description
[technical field]
The present invention relates to a kind of speech prompting device, relate in particular to a kind of simple in structurely, can make the speaker can see speech easily and do not influence the speech prompting device that the audience sees the speaker.
[background technology]
At present, give a lecture in the public meeting occasion, except that the impromptu speaker of minority, most of speakers are pinching or are clipping lecture notes with the original text platform with hand to give a lecture.
The speaker gives a lecture with speech draft, speaker's visual range can be mirrored simultaneously in the words and expressions of full page or leaf lecture notes, making it to be difficult to moment distinguishes and reads follow-up words and expressions, even slip a line and read mistake or omission, and font size can not arbitrarily adjust, and then makes the speaker worry a mistake of mistakes and omissions and a full piece of writing, echoes every word according to the copy and keep a close watch on lecture notes too much, not even consciously, finally do not make full piece of writing speech spoiled fully to read aloud the form substituting.
The speaker in indoor meeting-place, classroom or on outdoor building site, airport, square etc. during the speech of multiple occasion, can occur speech draft by electric fan wind, mechanical wind or natural wind disorderly, blow and fly or spattered, ooze out broken with water many puzzlements such as original text page or leaf by rainwater, make predetermined speech or speech be difficult to continuation.
Simultaneously, because of each speaker wants to make speech lively, interesting to listen to, and be reluctant oneself to become a declaimer mumbling some words or acoustical generator, so can adopt while saying with audience or spectators, student's sight moment to looking, or look about Games-related atmosphere, pan classroom discipline, and situation languages such as adapted expression in the eyes, gesture, body gesture then return sight the lecture notes to seal language of the Manchus word again.Can occur seeking this moment and read follow-up words and expressions, just occur easily causing speech " shock " awkward silence at a meeting for a long time, occur awkward uneasy predicament then, the speech effect be had a greatly reduced quality, even cause the speech failure because of searching.
So above-mentioned worry, embarrassment, predicament that the speaker occurs in the speech process or the situation about disturbing of making because of speech draft should obtain solving.
Simultaneously, the speaker mostly is and stands in speech table next door and be spectators' lecture, therefore, the speech prompting device that is provided can not volume can not be too huge or heavy, in order to avoid cover the speaker, or attraction spectators' notice.
In sum, provide a kind of simple in structure and can make the speaker can see easily the speech prompting device of speech real belong to necessary.
[summary of the invention]
Technical matters to be solved by this invention provides a kind of simple in structure, can make the speaker can see speech easily and does not influence the speech prompting device that the audience watches the speaker.
Technical scheme provided by the present invention is: a kind of speech prompting device, comprise a projection arrangement, one display screen, projection arrangement can be with ray cast to display screen, imaging on display screen thus, described display screen is that a plurality of strip shape bodies of accepting projection image constitute associated between each strip shape body, and tool gap.
A kind of speech prompting device comprises a display screen, and it can be shown as picture, and described display screen is that a plurality of strip LCD capable of displaying image constitute associated between each strip LCD, and tool gap.
Speech prompting device of the present invention is projected on the display screen by the projection arrangement content of will giving a lecture, or directly show the speech content by the display screen of strip LCD, simple in structure, described display screen is that a plurality of strip shape bodies of accepting projection imaging constitute, interrelate between each strip shape body, and the tool gap.This kind speech prompting device is seen that by spectators' direction sight line is passed through from the gap between narrow limit of each strip shape body and the narrow limit, only can see the narrow limit of each strip shape body, can not see display screen, and with respect to the audience, display screen is close to stealthy; And see by speaker's direction, then can see each strip shape body wide, and wide combination of the strip shape body of this direction be a whole screen, and the speaker can see speech easily.Simultaneously, each display location is in speaker the place ahead, but do not influence the audience and see the speaker, the speaker is talked face to face with spectators all the time, and the searching speech draft of must not bowing carry out order to determine speech, can make speaker and spectators carry out interaction, and then make speech lively, and project content can control in addition, then can provide to cooperate the required speech content of speaker.
In sum, speech prompting device of the present invention is simple in structure, and the speaker also can see speech easily, can finish speech easily.
[description of drawings]
The invention will be further described in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is the synoptic diagram of first embodiment of speech prompting device of the present invention.
Fig. 2 is the stereographic map of the display screen of speech prompting device of the present invention.
Fig. 3 A is the planimetric map that the display screen of speech prompting device of the present invention is watched from the F1 direction.
Fig. 3 B is the planimetric map that the display screen of speech prompting device of the present invention is watched from the F2 direction.
Fig. 4 is the stereographic map of another kind of structure of the display screen of speech prompting device of the present invention.
Fig. 5 is the stereographic map of second embodiment of speech prompting device of the present invention.
Fig. 6 is the stereographic map of the 3rd embodiment of speech prompting device of the present invention.
Fig. 7 is the stereographic map of the 4th embodiment of speech prompting device of the present invention.
Fig. 8 A is first synoptic diagram of the 5th embodiment of speech prompting device of the present invention.
Fig. 8 B is second synoptic diagram of the 5th embodiment of speech prompting device of the present invention.
Fig. 8 C is the 3rd synoptic diagram of the 5th embodiment of speech prompting device of the present invention.
Fig. 8 D is the 4th synoptic diagram of the 5th embodiment of speech prompting device of the present invention.
[embodiment]
The a plurality of embodiment of speech prompting device 100 tools of the present invention, detailed as following.
Be first embodiment below, see also Fig. 1, speech prompting device 100 of the present invention comprises projection arrangement 1, one lens set, 2, one display screens 3 and a casing 4.
Described projection arrangement 1 and lens set 2 place casing 4 inside, also can directly be placed in this dais, and the three all places under the podium, display screen 3 then places on the podium, projection arrangement 1 can refract to display screen 3 by lens set 2 with light, thus imaging on display screen 3.Described speech prompting device 100 also can independently be that a complete device is used.
Described projection arrangement 1 can be CRT display screen or LCD display, lantern slide, material object or the manuscript etc. of projector, electronic equipment driving, so that required speech content is projected on the display screen 3.Be that computer-projector instrument (Projector) is an example with projection arrangement 1 now, the content of will giving a lecture is stored in the computer, projector is connected with computer or both for one, the content of will giving a lecture again is projected to display screen 3 via projector.
Described projection arrangement 1 can lie in the casing 4,2 camera lenses 10 with projection arrangement 1 of lens set this moment are angled, the light launched from projection arrangement 1 is refracted on the rear side back side of display screen 3 or the front with imaging by lens set 2, and this moment, display screen 3 was real image position shown in Figure 1.The mode of placing vertically of this kind projection arrangement 1 can lens set 2, directly is projected to display screen 3 by projection arrangement 1.
Described projection arrangement 1 also can uprightly be placed in the casing 4, makes the light of launching from projection arrangement 1 see through lens set 2 or directly throws to the front side of display screen 3 or the back side with imaging, and this moment, display screen 3 was a dotted line position shown in Figure 1.The storing mode of this kind projection arrangement 1 need not lens set 2, directly is projected on the display screen 3 with imaging by projection arrangement 1.
During to the rear side back side imaging of display screen 3, display screen adopts the material that can see through back side light figure to described projection arrangement 1 with ray cast, and the speaker can see diagramatic content from above.Above-mentioned two kinds of projection imaging mode on display screen all can make the speaker can see sharp image.When projection arrangement 1 is projected to display screen 3 front side plates, speech on the projection arrangement 1 is just put, when being projected to display screen 3 back side side plates, the speaker on the projection arrangement 1 is inverted, so that be positioned at the image that speaker in face of the display screen front panel can both see forward.
Described lens set 2 can be a plurality of reflective mirrors to be formed, and it can comprise lens, flat mirror or curved mirror.Lens set 2 also can change the radiation direction of coming from projection arrangement 1 projection, the camera lens of increase projection arrangement 1 and the space length between screen are to obtain bigger projection image, bigger projection image also can adopt optical system in order to be obtained under less space length, obtain big image as combination of lenses or curved mirror etc., so the picture size that is projected on the display screen 3 is enough big and clear, so that the recognisable image that the speaker can be without lifting an eyebrow.
Please together consult Fig. 2, described display screen 3 can be placed on the podium, and it is strip shape body 30 formations of a plurality of dispersions, and described strip shape body 30 can be bar mirror, bar shaped curtain or bar shaped LCD and forms, and be a blind shaped between each strip shape body 30, relative angle can be fixed maybe can adjust and all can.Strip shape body 30 is the sheet of tool certain width, and its side is a thin type, and interrelates between each strip shape body 30, tool one fixed gap.Simultaneously, bar mirror, bar shaped curtain or bar shaped LCD simultaneously are the thin type face in the face of spectators', and spectators are seen over intimate stealthy, and its gap energy printing opacity makes the audience can see through this curtain and see the speaker.And corresponding to speaker's direction, reason owing to speaker's viewing angle, what the speaker saw is the planar section of strip shape body, the polylith strip shape body looks the plane that is combined into a near-complete, accept projector and throw the image of coming, though be incident upon on each strip shape body, every strip shape body is accepted part image, is combined into and a complete image.
The connection that each strip shape body is 30 can realize in the following way with support:
First, parallel two long distolateral edges of each strip shape body 30 are respectively equipped with fixed orifice (figure does not show), and a framework 34 is sticked at described long end place, place, described framework 34 corresponding said fixing holes also is provided with through hole (figure does not show), a securing member 32 can be passed through fixed orifice, through hole with each strip shape body 30 fixed support.By regulating the degree of tilt of framework 34 with control, adjusting strip shape body 30.
The second, can form blind shaped by moulding between each strip shape body 30, this kind forming principle is comparatively simple, need only mould or combination get final product.
The 3rd, also available gluing clamping plate, screw retention or the connection of other solid and other fixed form match and form between each strip shape body 30.
The 4th, also can adopt the edge fixed form between each strip shape body 30.
Can establish spring between above-mentioned connecting through hole 32 and the screw 37,, promptly regulate the degree of influence that reduces audience's direction sight line so that regulate strip shape body 30 relative speakers' degree of tilt.Adjusting mechanism can be made as manual plain mode, also can adopt the mechanic adjustment unit of electronic circuit control.
The constituted mode of this kind display screen 3 is the vision difference of utilizing different angles, to realize that display screen is by being interrupted, dispersing the continuous purpose of change.
See also Fig. 3 A, spectators from the F1 direction on podium, because of strip shape body 30 plates for thin type shape, the featheredge that is strip shape body 30 that spectators face, this featheredge does not influence spectators' sight line, is close to stealthy, so can not see screen, but can finely see the speaker.
See also Fig. 3 B, and the speaker sees toward display screen 3 from the F2 direction, be in the face of strip shape body 30 wide because of the F2 direction this moment, though every strip screen space is the local figure of display separation respectively, but be linked to be a whole screen from each strip shape body 30 pass that speaker's direction is watched, and this one side in the face of the speaker can show complete image, so the speaker can clearly see the image that projection arrangement 1 projection is come.
Display location the speaker is resembled all the time talk face to face with spectators, and the searching speech draft of must not bowing is wrong to determine whether speech draft, can make speaker and spectators carry out interaction in speaker the place ahead, and then makes speech lively.
See also Fig. 4, between each strip shape body 30 of the formation display screen 3 of described display screen 3 structures also can by another with it at an angle light transmission piece 36 be connected.This kind structure at present the structure of common little paper fan comparatively similar.Strip shape body 30 structures of the display screen 3 of this kind structure can plate light-transmissive film or make frame shape and be attached thereto as hereinbefore on the light transmission piece 36 that connects, but in the face of speaker's one side hacking then, or are cloth, and plastics etc. can be accepted projection image and all can.Spectators can see through light transmission piece 36, and can not see screen from the F1 direction thus, and the speaker then can see by whole screen image shown in Figure 3 from the F2 direction.
When the structure of above-mentioned display screen 3 is in running order, in opened condition, be the above-mentioned parallelogram sturcutre that is referred to as, and if when being in off working state, it can be drawn in, structure was identical when this kind rounding state collapsed with paper fan, the display screen 3 that can draw in places in the casing 4, is easy to carry.This kind structure also can be fixed form, makes globality good.
But, this kind display screen structure, though the side of strip shape body 30 is a featheredge, but still the tool certain thickness, then the side with strip shape body 30 processes or makes pattern or stamp LOGO, and promptly transferable spectators' sight line can obtain advertising results again.
Described casing 4 is a housing, for having the cavity of putting projection arrangement 1 and lens set 2.The surface is provided with the hole 40 that light is passed through on the casing 4, and the light that projection arrangement 1 is launched reflects by lens set 2, is projected to display screen 3 imagings by this hole 40 again.Display screen also can be fixed on this casing.
During assembling, at first projection arrangement 1 is placed in the casing 4, again the hole 40 of lens set 2 corresponding casing 4 upper surfaces is installed,, at last display screen 3 is installed in the position that can fully clearly receive the light that projection arrangement 1 launches so that light can pass through lens set 2, hole 40.Also can make a complete device, with projection arrangement 1, lens set 2, display screen 3 integrates, and launches during use to get final product.
Thus, can realize the installation of speech prompting device 100 simply, easily.
During work, please consult Fig. 1 once more, start projection arrangement 1, make its speech content via lens set 2, and make image projecting to display screen 3.If during to position shown in the real image of display screen 3, this moment, image was for just to throw to the front panel of display screen 3 with image projecting for projection arrangement 1; If during to position shown in the virtual image of display screen 3, this moment, image be anti-the throwing to the rear panel of display screen 3 to projection arrangement 1 with image projecting, and the speaker is front panel the place ahead of just standing on display screen 3, also can see the image of facing on the front panel of display screen 3.
If find that image is unclear, can corresponding adjustment projection arrangement 1 or the focal length of lens set 2, till image definition.And can be according to habitual visual direction of speaker and spectators' visual direction, the degree of tilt of the strip shape body 30 of corresponding adjustment display screen 3 is so that spectators' visual direction then is whole continuously the screen for discrete display screen 3 relative speakers' visual direction relatively.
This shows that this speech prompting device 100 is just standing on vision the place ahead of speaker, can make the speaker when giving a report, can read the speech content easily, naturally, and spectators form interaction under instant and the platform, can make speech become lively.
The above-mentioned display screen 3 that is referred to as speech prompting device 100 is not to be level altitude, can be adjusted accordingly according to speaker's height, if after adjusting, the image that is projected on the display screen 3 is unclear, can corresponding adjusting projection arrangement 1 focal length, or to the one focal length adjustment of lens set 2 dos, till image definition.
The above-mentioned speech prompting device that is referred to as 100 only is a kind of embodiment of the present invention, and speech prompting device 100 of the present invention also has following numerous embodiments, and is detailed as following.
Be second embodiment below: see also Fig. 5, described speech prompting device 100 comprises projection arrangement 1, lens set 2 and display screen 3.Described projection arrangement 1, lens set 2 and display screen 3 all can be identical with any projection arrangement, lens set and the display screen described in first embodiment.
Among this embodiment, projection arrangement 1 places any position, and camera lens is towards lens set 2, and lens set 2 can place on the ceiling or other place, makes projection ray's directive display screen 3, the place that display screen 3 places the speaker to watch.
In the present embodiment, projection arrangement 1 need only place the forward and backward side of display screen 3, and lens set 2 then places the projection that can receive projection arrangement 1 to get final product, so with ray cast to display screen 3.Projection arrangement 1 if by lens set 2 with ray cast to display screen 3 front panels, the speech content just can be put; If by lens set 2 with ray cast to the rear side panel of display screen 3, can the speech content instead extremely, can see the speech content of forward by display screen 3 front and back, and display screen must adopt the illustrated material that can see through back side light.
Be the 3rd embodiment below: see also Fig. 6, described speech prompting device 100 comprises projection arrangement 1, figure curtain 2 ', display screen 3.
In the present embodiment, described figure curtain 2 ' can be captions, video curtain TV or other display and material object all can, display screen 3 is then formed for bar mirror, figure curtain 2 ' can be gone up content displayed by reflecting on the display screen 3, the speaker then can be reflected the content of seeing on the figure curtain 2 ' from display screen 3.Figure curtain 2 ' can need only the speaker can see that the content on the figure curtain 2 ' gets final product from display screen 3 with being installed in any position that display screen 3 is correlated with.
Be the 4th embodiment below: see also Fig. 7, described speech prompting device 100 comprises projection arrangement 1 and display screen 3.Present embodiment is compared with previous embodiment, has reduced lens set 2, by projection arrangement 1 directly with image projecting to display screen 3.
In the present embodiment, projection arrangement 1 can place on display screen the place ahead, as ceiling, wall or bracing frame first-class all can, and then directly with the figure ray cast to display screen 3; Display screen 3 can be a multiple angles for the speaker as shown in Figure 1, is beneficial to overlooking or looking up of speaker.
In sum, speech prompting device 100 of the present invention is projected to blur-free imaging on the display screen 3 by projection arrangement 1 content of will giving a lecture, and the light path between projection arrangement 1 and the display screen 3 can be established a lens combination 2, and the position between the three can be set arbitrarily, ray cast to display screen 3 need only be got final product.This kind speech prompting device 100 can make the speaker can see the speech content like a cork, the content that need not extremely keep a close watch on screen or memorize mechanically speech draft, and make speech lively inadequately.
Be the 5th embodiment below: see also Fig. 8 A, Fig. 8 B, Fig. 8 C, Fig. 8 D, this display screen 3 of implementing novel speech prompting device 100 also can be combined by many bar shaped LCD, be that the LCD that display screen 3 can be a plurality of weak points are formed by connecting respectively, the bar shaped LCD of this display screen 3 can get up by a frame fixation.Every LCD display part suggestion content, many LCD forms a complete screen, be connected by a divider 5 between display screen 3 and the computer system 1', divider 5 can be assigned to complete image on each LCD, each LCD goes up the complete image of demonstration thus again, and the structure of this kind speech display device is more simple.
Claims (25)
1. a speech prompting device comprises a projection arrangement, a display screen, projection arrangement can be with ray cast to display screen, and imaging on display screen thus is characterized in that: described display screen is that a plurality of strip shape bodies of accepting projection image constitute, associated between each strip shape body, and tool gap.
2. speech prompting device as claimed in claim 1 is characterized in that: described projection arrangement can be connected with CRT, LCD, material object or the original copy of computer electronic system drive, so that the contribution content is projected on the display screen.
3. speech prompting device as claimed in claim 2 is characterized in that: described speech prompting device also can comprise a lens set.
4. speech prompting device as claimed in claim 3 is characterized in that: described lens set can be optical lens, reflective mirror is formed, and it can be flat mirror or curved mirror, and optical system is with the big image of acquisition in short distance, or the employing curved mirror obtains big image.
5. speech prompting device as claimed in claim 4 is characterized in that: described lens set can be with the light refraction of projection arrangement projection to display screen.
6. speech prompting device as claimed in claim 5 is characterized in that: but the image of described lens set reflective projection on display screen makes the speaker can see imaging clearly in lens set.
7. speech prompting device as claimed in claim 6 is characterized in that: can be any angle between described projection arrangement and the lens set, only need to obtain sharp image on display screen and get final product.
8. speech prompting device as claimed in claim 6 is characterized in that: described projection arrangement can be with front or the back side of image projection to display screen, and display screen can see through back side image, and the speaker all can see image in the front.
9. speech prompting device as claimed in claim 8 is characterized in that: described speech prompting device also can comprise a casing, to accommodate projection arrangement and lens set, also can accommodate display screen.
10. a speech prompting device comprises a display screen, and it can be shown as picture, it is characterized in that: described display screen is that a plurality of strip LCD capable of displaying image constitute associated between each strip LCD, and tool gap.
11. speech prompting device as claimed in claim 10 is characterized in that: described LCD display can be by frame fixation.
12. speech prompting device as claimed in claim 11, it is characterized in that: described speech prompting device also comprises a computer system and a separation vessel, separation vessel is connected with each strip LCD respectively, so that complete image is decomposed on each LCD, and is combined into complete image.
13. as any one described speech prompting device in the claim 1 to 10, it is characterized in that: described display screen can be bar mirror or the bar shaped curtain is formed, and is a blind shaped between each strip shape body.
14. speech prompting device as claimed in claim 13 is characterized in that: described each strip shape body can be amounted to assembling, so that carry.
15. speech prompting device as claimed in claim 14 is characterized in that: described strip shape body is the sheet of tool certain width, and the side is thinner, and faces one side of speaker, and is capable of displaying image.
16. speech prompting device as claimed in claim 15 is characterized in that: described strip shape body can be metal or nonmetallic materials and constitutes, and its surface can be the plane, cambered surface, and curved surface or flour mixed with adulterants can be reflectively, are in the light, and plated film is electroplated, and frosted glass is translucent etc.
17. speech prompting device as claimed in claim 16 is characterized in that: relative two edges of described strip shape body are respectively equipped with fixed orifice.
18. speech prompting device as claimed in claim 17 is characterized in that: on relative two edges of described strip shape body a framework is set, and described framework is provided with through hole, and through hole is corresponding with the fixed orifice position.
19. speech prompting device as claimed in claim 18 is characterized in that: be to pass through through hole, fixed orifice with strip shape body and frame fixation between described strip shape body and the framework with a securing member spare.
20. speech prompting device as claimed in claim 16 is characterized in that: can be between described each strip shape body by injection mo(u)lding or gluing or connect with support and to form blind shaped.
21. speech prompting device as claimed in claim 19 is characterized in that: described through hole, fixed orifice and screw place can establish spring, so that regulate the relative speaker's of strip shape body degree of tilt.
22. speech prompting device as claimed in claim 21 is characterized in that: the side of described each strip shape body can tumble in lace or beat LOGO.
23. speech prompting device as claimed in claim 16 is characterized in that: between the described strip shape body by another with it at an angle light transmission piece or printing opacity framework be connected.
24. speech prompting device as claimed in claim 23 is characterized in that: can plate light-transmissive film on the described light transmission piece, and strip shape body in the face of spectators' a side plates light-transmissive film, in the face of speaker's one side hacking then, or be cloth, plastics etc.
25. speech prompting device as claimed in claim 24 is characterized in that: the junction between described strip shape body and the light transmission piece can tumble in lace or beat LOGO.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510083408 CN1892725A (en) | 2005-07-07 | 2005-07-07 | Speech prompting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510083408 CN1892725A (en) | 2005-07-07 | 2005-07-07 | Speech prompting device |
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| Publication Number | Publication Date |
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| CN1892725A true CN1892725A (en) | 2007-01-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510083408 Pending CN1892725A (en) | 2005-07-07 | 2005-07-07 | Speech prompting device |
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| CN (1) | CN1892725A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104598875A (en) * | 2014-12-30 | 2015-05-06 | 苏州福丰科技有限公司 | Three-dimensional face recognition system-based public presentation prompt device |
| CN104680954A (en) * | 2015-03-03 | 2015-06-03 | 京东方科技集团股份有限公司 | Shutter information display screen and vehicle-mounted display device |
| CN105301877A (en) * | 2015-12-05 | 2016-02-03 | 中国航空工业集团公司洛阳电光设备研究所 | Perspective type speech display device |
| CN111816009A (en) * | 2020-08-14 | 2020-10-23 | 新乡医学院 | Multi-scene use type multimedia teaching presentation device |
-
2005
- 2005-07-07 CN CN 200510083408 patent/CN1892725A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104598875A (en) * | 2014-12-30 | 2015-05-06 | 苏州福丰科技有限公司 | Three-dimensional face recognition system-based public presentation prompt device |
| CN104680954A (en) * | 2015-03-03 | 2015-06-03 | 京东方科技集团股份有限公司 | Shutter information display screen and vehicle-mounted display device |
| CN104680954B (en) * | 2015-03-03 | 2018-02-27 | 京东方科技集团股份有限公司 | Blinds information display screen and display device for mounting on vehicle |
| CN105301877A (en) * | 2015-12-05 | 2016-02-03 | 中国航空工业集团公司洛阳电光设备研究所 | Perspective type speech display device |
| CN105301877B (en) * | 2015-12-05 | 2018-06-26 | 中国航空工业集团公司洛阳电光设备研究所 | A kind of Clairvoyant type speech display device |
| CN111816009A (en) * | 2020-08-14 | 2020-10-23 | 新乡医学院 | Multi-scene use type multimedia teaching presentation device |
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