CN201629057U - Learning machine for supporting projection model - Google Patents
Learning machine for supporting projection model Download PDFInfo
- Publication number
- CN201629057U CN201629057U CN2009203153677U CN200920315367U CN201629057U CN 201629057 U CN201629057 U CN 201629057U CN 2009203153677 U CN2009203153677 U CN 2009203153677U CN 200920315367 U CN200920315367 U CN 200920315367U CN 201629057 U CN201629057 U CN 201629057U
- Authority
- CN
- China
- Prior art keywords
- module
- learning machine
- projection
- support pattern
- pattern according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model provides a learning machine for supporting a projection model, comprising a rechargeable battery and an audio power amplifier module. The utility model is characterized in that the output end of the audio power amplifier module is connected with a baseband processing module which is connected with a storage module, a liquid crystal display module and a display switching module, and the display switching module is connected with a miniature projection display module. The learning machine can display the contents of the learning machine or external input video signals by projection and has the advantages of reasonable design, low cost and a certain of market value.
Description
Technical field
The utility model relates to a kind of learning machine of projection display mode.
Background technology
The technical development of palm learning machine has become indispensable instrument in the daily learning life of large, medium and small students.And along with development of technology, learning machine except realize elementary video broadcast, music, Entertainment, re-reading, with reading function etc.And as the learning machine of portable set, volume is little, and screen is little, is convenient for carrying.Screen on utilizing learning machine is learnt, played games etc. can greatly influence the effect of vision when these are used, thereby has limited user's use.
Shadow casting technique is extensive use of on equipment such as projector as a kind of display technique that is used for amplifying display image.The lcd technology that adopts on the mode of Projection Display, principle and the learning machine product at present has different greatly.Basically all types of projector all are earlier irradiate light to be produced image to image-displaying member, carry out projection by camera lens then.The image-displaying member of projector comprises the reflection-type of utilizing printing opacity to produce the infiltration type of image and utilizing reflected light generation image.Any type no matter all is that the light with projection lamp is divided into red, green, blue three looks, produces versicolor image again.Show because element itself can only carry out monochrome, therefore will utilize 3 elements to generate 3 colour contents respectively.This 3 color image being synthesized an image, projecting on the screen then by camera lens by prism.
The Large Screen Display Technology of projection becomes a kind of direction that realizes Large Screen Display Technology on the learning machine, but because the volume and the power consumption of projector are bigger, and the data layout of projector, what display mode and learning machine were used differs greatly, utilize shadow casting technique to realize that the mode of the large screen display on the learning machine is at present: built-in Data Format Transform module realizes the format conversion of learning machine video data and projector data on the learning machine, provide converter to output on the existing projector video data of learning machine output, though this mode has realized the large screen display of learning machine content, but because learning machine and projector are two separate equipment, and general projector volume is big, power consumption is big, need Alternating Current Power Supply, do not possess portability, so this technical scheme is not brought into play the characteristics that the learning machine portability can be used whenever and wherever possible, greatly limited the usable range of learning machine large screen projection.
Summary of the invention
The purpose of this utility model provides the learning machine that a kind of projection support pattern shows, can realize that the interior perhaps outside incoming video signal projectable of learning machine shows.
For addressing the above problem, the utility model by the following technical solutions: a kind of learning machine of projection support pattern, comprise rechargeable battery and audio frequency power amplifier module, it is characterized in that: the output terminal of described audio frequency power amplifier module links to each other with baseband processing module; Described baseband processing module is connected with storage module, LCD MODULE and demonstration handover module, and described demonstration handover module is connected with the micro projection display module.
The utility model volume is little, is easy to carry, and not only the content of study can be carried out projection and play, but also realize functions such as MP4 video playback, MP3 music, e-book.Simple to operate, practical, have certain marketable value.
Description of drawings
Fig. 1 is a circuit theory schematic block diagram of the present utility model.
Fig. 2 is the theory of constitution block diagram of the utility model micro projection display module.
Fig. 3 is the composition synoptic diagram of the utility model preferred embodiment.
Embodiment
Below in conjunction with drawings and Examples the utility model is described further.
Show that as Fig. 1 the utility model provides a kind of learning machine of projection support display mode, comprise rechargeable battery and audio frequency power amplifier module, it is characterized in that: the output terminal of described audio frequency power amplifier module links to each other with baseband processing module; Described baseband processing module is connected with storage module, LCD MODULE and demonstration handover module, and described demonstration handover module is connected with the micro projection display module.Specifically, finish the Projection Display of learning machine displaying contents or the Projection Display of outside incoming video signal by the demonstration handover module under the control of the baseband processor of learning machine as the micro projection display module of projection display mode core.
The function that shows handover module mainly comprises two:
1) shows switching controls: under the control of the baseband processor of learning machine, finished the liquid crystal display of learning machine and the switching of Projection Display; Under the control of the baseband processor of learning machine, realized that the content of learning machine and the Projection Display of external video input signal switch.
2) duty of minitype projection module control: under the control of the baseband processor of learning machine, realized power supply control to the micro projection display module, make that the micro projection display module is in low power consumpting state under non-projection mode, thereby prolong the working time of learning machine; Realized under non-projection display mode, possessing the performance the same with common learning machine.
The demonstration handover module has been realized three kinds of mode of operations of learning machine in present embodiment:
Pattern one: the learning machine pattern, generally use learning machine to show with liquid crystal, the micro projection display module is in closed condition, and the external video input receives and is in low power consumpting state.
Pattern two: the learning machine projection mode, using projection mode to show that the content of Projection Display is the displaying contents of learning machine, the micro projection display module is in state of activation, and the external video input receives and is in low power consumpting state.
Pattern three: projector pattern, this moment, learning machine showed that as common projector the content of Projection Display is the input of external video, and the content of learning machine uses LCD to show, the micro projection display module is in state of activation, and the external video input receives and is in state of activation.
Show that as Fig. 2 the micro projection display module mainly is made up of three parts: bare engine module, micro projection driver module, micro projection constant-current driven module.
Data converter in the micro projection driver module is finished the video data form of base band output of learning machine to the conversion of video format, also finish the relatively low high-resolution conversion under the Projection Display of learning machine display resolution simultaneously, needed bias voltage of LCD MODULE and operating voltage in the liquid crystal driver output bare engine module in the micro projection driver module.
The micro projection driver module also possesses the video inputs mouth, supports the input of external analog or digital video, and video receiver is finished the video format conversion of input video to the interior data converter of micro projection driver module.
The Projection Display of learning machine needs light source that very high luminance brightness and smaller volume are arranged, and can adopt the solid state lighting technology of led light source or other small size to realize.
The micro projection constant-current driven module has adopted the high efficiency DC/DC converter technique that combines with voltage-dropping type of boosting to come output HIGH current, realized constant electric current output by output current sampling and FEEDBACK CONTROL, steady current output has guaranteed the stable of light source light brightness, has avoided the flicker under the projection mode.Lithium battery power supply and the input of the power supply under the external adapter in the learning machine used in the support of micro projection constant-current driven module.
The data of Projection Display output to LCD MODULE in the bare engine module from the micro projection driver module, and LCD MODULE can adopt LCOS technology or DLP technology to realize small size, high-resolution, high luminance relay prime number.
After the data of Projection Display are exported by LCD MODULE, under the excitation of light source,, project on the screen by the output of optical imagery module.The optical imagery module adopts a plurality of prismatic lenses to realize under the small size image on the LCD MODULE being shown by projection mode by the method that reflects, and supports the manual adjustments focal length, can adopt glass or resin.
Described demonstration handover module can and utilize the IC Devices Characteristics to constitute by some simulations and digital switch.
As shown in Figure 3 preferable, learning machine adopts the triumphant scheme of peace, and baseband processor is RK7802, and LCD MODULE adopts the TFT_LCD technology, and resolution is 320x240), 24 looks, volume are 98mmx57mm; The micro projection driver module is made up of SID1346 and HX7805.SID1346 finishes the conversion of the video data form of learning machine Base-Band Processing to video CCIR-656 form, finishes the conversion of the low resolution video data (320x240) of learning machine baseband processor output to required VGA (640x480) form of LCD MODULE simultaneously.
Described video is input as the composite analog video input, and video receiver is TVP5150AM1, finishes the conversion that analog video is input to video format CCIR-656 form, and the video data of TVP5150AM1 output is connected to HX7805 and then carries out Projection Display.
Described constant-current driving adopts TPS61059, for the led light source of ray machine provides stable constant current source.
Realize showing handover module by some simulations and digital switch and the characteristic that combines in the IC device.
The above only is preferred embodiment of the present utility model, and all equalizations of being done according to the utility model claim change and modify, and all should belong to covering scope of the present utility model.
Claims (8)
1. the learning machine of a projection support pattern comprises rechargeable battery and audio frequency power amplifier module, it is characterized in that: the output terminal of described audio frequency power amplifier module links to each other with baseband processing module; Described baseband processing module is connected with storage module, LCD MODULE and demonstration handover module, and described demonstration handover module is connected with the micro projection display module.
2. according to the learning machine of the described projection support pattern of claim l, it is characterized in that: described micro projection display module comprises micro projection driver module, bare engine module and is used for providing the micro projection constant-current driven module of power supply to bare engine module.
3. the learning machine of projection support pattern according to claim 2 is characterized in that: described micro projection driver module is made up of video data modular converter and liquid crystal driver.
4. the learning machine of projection support pattern according to claim 3 is characterized in that: described video data modular converter adopts SID1346, and described liquid crystal driver adopts HX7805.
5. the learning machine of projection support pattern according to claim 2, it is characterized in that: described bare engine module comprises LCD MODULE, light source and optical imagery module, and the output terminal of described LCD MODULE, the output terminal of light source are connected with the optical imagery module respectively.
6. the learning machine of projection support pattern according to claim 2 is characterized in that: the DC/DC conversion that described micro projection constant-current driven module combines with voltage-dropping type by boosting is to realize steady current output.
7. the learning machine of projection support pattern according to claim 6 is characterized in that: described micro projection constant-current driven module adopts TPS61059.
8. the learning machine of projection support pattern according to claim 5 is characterized in that: described optical imagery module is provided with a plurality of eyeglasses, can manually focus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203153677U CN201629057U (en) | 2009-11-21 | 2009-11-21 | Learning machine for supporting projection model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203153677U CN201629057U (en) | 2009-11-21 | 2009-11-21 | Learning machine for supporting projection model |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201629057U true CN201629057U (en) | 2010-11-10 |
Family
ID=43060455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203153677U Expired - Fee Related CN201629057U (en) | 2009-11-21 | 2009-11-21 | Learning machine for supporting projection model |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201629057U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103578303A (en) * | 2013-10-10 | 2014-02-12 | 东莞市中科教育电子有限公司 | Child learning machine system |
-
2009
- 2009-11-21 CN CN2009203153677U patent/CN201629057U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103578303A (en) * | 2013-10-10 | 2014-02-12 | 东莞市中科教育电子有限公司 | Child learning machine system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201312342Y (en) | Mobile phone supporting projection display mode | |
| CN203801020U (en) | Intelligent projector | |
| CN202349607U (en) | Flashlight with LED mini projector | |
| CN101470337B (en) | Mobile equipment embedded with projector module | |
| CN101710950A (en) | Multimedia digital (analog) mobile television supporting projection display mode | |
| US20110070920A1 (en) | Method for a phone with content projector | |
| CN102707557A (en) | Micro projection device being embedded in mobile phone | |
| CN201629057U (en) | Learning machine for supporting projection model | |
| CN201152921Y (en) | External mobile phone projecting system | |
| CN103268713A (en) | Sand painting equipment with audio/video system of creative teaching equipment | |
| CN201523422U (en) | Multi-media digital (analogy) mobile television supporting projection display modes | |
| CN201199314Y (en) | Multifunctional projection DVD | |
| CN201828762U (en) | Miniature projector arranged in mobile phone | |
| CN113518213B (en) | Real-time dynamic video display system based on 4k digital micromirror chip | |
| CN205354413U (en) | English learning device | |
| CN101794612B (en) | DVD playing device supporting projection display | |
| CN202872960U (en) | Intelligentized and small-sized DLP acoustic image projector | |
| CN203275867U (en) | Projector | |
| CN201628837U (en) | Handheld camera shooting and projecting machine | |
| CN204652584U (en) | The micro-projection SmartMovie of LED light source DLP | |
| CN203799167U (en) | Novel intelligent portable micro projector | |
| CN201716515U (en) | Projector | |
| CN201955611U (en) | Projection device with television playing function | |
| CN210348172U (en) | DLP intelligence projection arrangement and projecting apparatus | |
| CN201828759U (en) | Projector with TV playback function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101110 Termination date: 20141121 |
|
| EXPY | Termination of patent right or utility model |