CN108920023A - Intelligent blackboard - Google Patents
Intelligent blackboard Download PDFInfo
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- CN108920023A CN108920023A CN201811125908.XA CN201811125908A CN108920023A CN 108920023 A CN108920023 A CN 108920023A CN 201811125908 A CN201811125908 A CN 201811125908A CN 108920023 A CN108920023 A CN 108920023A
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- 239000004973 liquid crystal related substance Substances 0.000 claims description 29
- 239000003086 colorant Substances 0.000 claims description 11
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- HPNSNYBUADCFDR-UHFFFAOYSA-N chromafenozide Chemical compound CC1=CC(C)=CC(C(=O)N(NC(=O)C=2C(=C3CCCOC3=CC=2)C)C(C)(C)C)=C1 HPNSNYBUADCFDR-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/046—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by electromagnetic means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Drawing Aids And Blackboards (AREA)
Abstract
The invention discloses an intelligent blackboard which comprises a main screen and an auxiliary screen arranged on one side of the main screen, wherein the auxiliary screen comprises a cover plate, a writing presentation plate and a touch device, and the touch device is used for identifying touch operation on the writing presentation plate; the main screen is used for generating video data according to touch operation; the writing presentation board responds to the video data and presents image information corresponding to the video data. The main screen and the auxiliary screen of the intelligent blackboard can realize information intercommunication, when writing content is touched on the cover plate of the auxiliary screen, touch operation on the writing presentation board is identified by the touch device, the main screen generates video data according to the touch operation, and drives the writing presentation board to respond to the video data, so that image information corresponding to the video data is clearly presented.
Description
Technical field
The present invention relates to intelligent electronic device technical field more particularly to a kind of wisdom blackboards.
Background technique
Existing wisdom blackboard generally includes a main screen and two vice screens, and two vice screens are separately positioned on the two of main screen
Side, main screen are usually the large screen all-in-one machine with operating system, can be with touch control operation.
Generally there are two types of structures for vice screen：The vice screen of frosted glass production or the vice screen of liquid crystal film production.
Normal chalk-writing can be used in frosted glass vice screen, but it has the disadvantages that：1, frosted glass is reflective serious, strong
Under light direct beam, the content of chalk-writing can not seen；2, automatic storage written contents are unable to；It 3, cannot be with main screen information mutual communication.
Finger can be used in vice screen made of liquid crystal film or hard object touch-control is write, and handwriting trace can be detected in liquid crystal film, to pass through
It controls liquid crystal deflection and realizes display.
The writing principle of liquid crystal film is：Referring to attached drawing 1, liquid crystal film include the first substrate 1 ' set gradually from outside to inside,
First electrode layer 2 ', liquid crystal layer 3 ', the second electrode lay 4 ', the second substrate 5 ' and bottom plate 6 ' are pressed by finger or other hard objects
First substrate 1 ' is pressed, power can pass to liquid crystal layer 3 ', and the liquid crystal molecule of liquid crystal layer 3 ' is transformed to the second stable state from the first stable state,
Under second stable state, light can be through liquid crystal layer 3 ' to the color of reflected bottom plate 6 ', to realize writing and display.Work as needs
When reset, apply resetting voltage to first electrode layer 2 ' and 4 ' both ends of the second electrode lay, the liquid crystal molecule transformation under the second stable state
For the first stable state, so that shield lights, realize the removing of written contents.Liquid crystal film vice screen has the disadvantages that：1, light passes through
First substrate 1 ' and liquid crystal layer 3 ' are reflected by reflection using liquid crystal layer 3 ' and first substrate 1 ' to bottom plate 6 ', thus by
Human eye receives, and each of the above layer structure will make light loss, and then keeps picture contrast insufficient, in addition, when the light of extraneous environment
When stronger, the person's handwriting of writing shows unintelligible；2, when imparting knowledge to students in the doors structures such as more spacious classroom, usually require by
Word carries out big rugosity writing, and otherwise remote personnel will not see Chu, and when big rugosity writing, it needs using same big rugosity
Pen or other hard objects, be not easy to operate；3, liquid crystal film is and the first electrode using giving removing voltage when removing person's handwriting
Layer 2 ' and the second electrode lay 4 ' are overall structures, once pressurizeing, all writings on liquid crystal film will be removed simultaneously, such pair
Screen cannot achieve local removing, or by the way of locally coating, increase operation difficulty；4, the vice screen of liquid crystal film is because be
Degree of light transmission is adjusted by liquid crystal deflection, therefore there is a problem of visible angle difference.
Summary of the invention
One purpose of the embodiment of the present invention is：A kind of wisdom blackboard is provided, vice screen is write convenient, it can be achieved that part
Erasing, and clear writing.
Another purpose of the embodiment of the present invention is, provides a kind of wisdom blackboard, and vice screen and main screen information can lead to, and
Main screen can store the written contents of vice screen.
For this purpose, the embodiment of the present invention uses following technical scheme：
A kind of wisdom blackboard is provided, including main screen and the vice screen that the main screen side is arranged in, the vice screen include cover board,
It writes and plate and touch device is presented, the touch device occurs for identification in the touch control operation write and presented on plate；
The main screen is used to generate video data according to the touch control operation；
Plate is presented in response to the video data in the writing, and image information corresponding with the video data is presented.
As a kind of preferred embodiment of wisdom blackboard, the writing is presented plate and is also used to respond the touch control operation, and is in
Now image information corresponding with the touch control operation.
It further include image driver, described image driver is for receiving view as a kind of preferred embodiment of wisdom blackboard
Frequency evidence, and drive the writing that plate is presented and image information corresponding with the video data is presented.
As a kind of preferred embodiment of wisdom blackboard, described image driver is set in the vice screen.
As a kind of preferred embodiment of wisdom blackboard, the touch device includes being disposed around the writing to present at web wheel exterior feature
Infrared touch-control frame and touch-control driver；The infrared touch-control frame occurs to present on plate in the writing for identification
Touch control operation, the touch-control driver is used to by the touch control operation convert touching signals.
As a kind of preferred embodiment of wisdom blackboard, the touch device includes being located at the writing plate and the lid is presented
Capacitance touching control film and touch-control driver between plate；The capacitance touching control film occurs that plate is presented in the writing for identification
On touch control operation, the touch-control driver is used to by the touch control operation convert touching signals.
As a kind of preferred embodiment of wisdom blackboard, the touch device includes electromagnetic touch film and touch-control driver, institute
It states electromagnetic touch film to be located between writing presentation plate and the cover board, alternatively, the electromagnetic touch film is located at the writing
Backboard is presented to the cover board side；The electromagnetic touch film occurs for identification in the touch-control behaviour for writing and presenting on plate
Make, the touch-control driver is used to convert touching signals for the touch control operation.
As a kind of preferred embodiment of wisdom blackboard, it is electroluminescent active display device, the electricity that plate, which is presented, in the writing
Active display device is caused to be shown image information corresponding with the electric signal by electric signal driving.
As a kind of preferred embodiment of wisdom blackboard, it is electronic ink screen that plate, which is presented, in the writing.
As a kind of preferred embodiment of wisdom blackboard, it is organic EL display panel that plate, which is presented, in the writing.
As a kind of preferred embodiment of wisdom blackboard, it is liquid crystal display that plate, which is presented, in the writing.
As a kind of preferred embodiment of wisdom blackboard, it is LED screen that plate, which is presented, in the writing.
As a kind of preferred embodiment of wisdom blackboard, backlight module is provided on the electronic ink screen.
As a kind of preferred embodiment of wisdom blackboard, the writing is presented plate and is integrated by the presentation plate splicing of multiple units.
As a kind of preferred embodiment of wisdom blackboard, the touch device includes being located at the writing plate and the lid is presented
Capacitance touching control film and touch-control driver between plate；The capacitance touching control film is directed to the writing for identification and plate is presented
Touch control operation, the touch-control driver is used to by the touch control operation convert touching signals；
The unit presents and is correspondingly arranged on the touch control film on plate, and the unit is presented plate and is separately connected the touch-control drive
Dynamic device.
It include several pixels in the electronic ink screen as a kind of preferred embodiment of wisdom blackboard, the pixel
First side has the first color, and the second side of the pixel has the second color, first color and second face
Color is different.
As a kind of preferred embodiment of wisdom blackboard, first color is black, green, red, purple, blue, ash
Color, it is orange in any one, second color be white.
As a kind of preferred embodiment of wisdom blackboard, the organic EL display panel is active matric organic electroluminescence
Light emitting display.
As a kind of preferred embodiment of wisdom blackboard, the organic EL display panel includes multiple pixels, the picture
Element is made of first sub-pixel and second sub-pixel, and first sub-pixel is different with second sub-pixel colors.
As a kind of preferred embodiment of wisdom blackboard, first sub-pixel is green, and second sub-pixel is red.
As a kind of preferred embodiment of wisdom blackboard, the two sides of the main screen are respectively equipped with the vice screen.
As a kind of preferred embodiment of wisdom blackboard, the cover board is frosted glass, acrylic board or flat glass.
The embodiment of the present invention has the beneficial effect that：It is mutual that information can be achieved between the main screen and vice screen of wisdom blackboard of the invention
Logical, when touching written contents on the cover board in vice screen, writing the touch control operation presented on plate will be identified by touch device, main
Screen can generate video data according to this touch control operation, and drive writing that plate is presented and present in response to video data, and then clearly
Image information corresponding with video data.
Detailed description of the invention
The present invention will be further described in detail below based on the drawings and embodiments.
Fig. 1 is the structural schematic diagram of the liquid crystal film of the prior art.
Fig. 2 is the structural schematic diagram of the wisdom blackboard of the embodiment of the present invention.
In Fig. 1：
1 ', first substrate；2 ', first electrode layer；3 ', liquid crystal layer；4 ', the second electrode lay；5 ', the second substrate；6 ', bottom
Plate.
In Fig. 2：
1, main screen；2, vice screen；21, cover board；22, it writes and plate is presented.
Specific embodiment
To keep the technical problems solved, the adopted technical scheme and the technical effect achieved by the invention clearer, below
It will the technical scheme of the embodiment of the invention will be described in further detail in conjunction with attached drawing, it is clear that described embodiment is only
It is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those skilled in the art exist
Every other embodiment obtained under the premise of creative work is not made, shall fall within the protection scope of the present invention.
In the description of the present invention unless specifically defined or limited otherwise, term " connected ", " connection ", " fixation " are answered
It is interpreted broadly, for example, it may be being fixedly connected, may be a detachable connection, or is integral；It can be mechanical connection,
It can be electrical connection；It can be directly connected, the company inside two elements can also be can be indirectly connected through an intermediary
Logical or two elements interaction relationship.For the ordinary skill in the art, can be understood with concrete condition above-mentioned
The concrete meaning of term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower"
It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it
Between other characterisation contact.Moreover, fisrt feature includes the first spy above the second feature " above ", " above " and " above "
Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " include that fisrt feature is directly below and diagonally below the second feature, or is merely representative of
First feature horizontal height is less than second feature.
Referring to shown in Fig. 2, the embodiment of the present invention provides a kind of wisdom blackboard, and including main screen 1 and 1 side of main screen is arranged in
Vice screen 2, vice screen 2 include cover board 21, write presentation plate 22 and touch device, and touch device occurs writing presentation plate for identification
Touch control operation on 22；Main screen 1 is used to generate video data according to touch control operation；It writes and plate 22 is presented in response to video data,
And image information corresponding with video data is presented.It is mutual that information can be achieved between the main screen 1 and vice screen 2 of wisdom blackboard of the invention
Logical, when touching written contents on the cover board 21 in vice screen 2, writing the touch control operation presented on plate 22 will be known by touch device
Not, main screen 1 can generate video data according to this touch control operation, and drive writing that plate 22 is presented in response to video data, Jin Erqing
Image information corresponding with video data is presented to Chu.
In the present embodiment, video data is obtained according to the touch information of main screen 1 or vice screen 2, such as：Touch-control main screen 1 or
The icon responded in vice screen 2 gives the touch control gesture that main screen 1 or vice screen 2 can respond；Either according to for main screen 1
Proactive Command obtains, such as main screen 1 controls vice screen 2 and plays video media information, then main screen 1 is according to " broadcasting " this preposition life
Order persistently exports vision signal.
Vice screen 2 can be realized the interactive function with main screen 1 as a result, be not limited to：Vice screen 2 expands as the screen of main screen 1
Exhibition or screen extend；Vice screen 2 and main screen 1 show that identical or different content is compareed, referred to；Main screen 1 is due to having received master
Screen 1 and vice screen 2 touch information, therefore by this touch information identification be rendered into image after, can save and forward, a kind of implementation
Mode：Teacher is imparted knowledge to students using the wisdom blackboard of the present embodiment on classroom, and all writing on the blackboard contents can be saved by main screen 1 and wash with watercolours
Dye is image, is transmitted to student's writing on the blackboard image, after class in order to review after students in class.The present embodiment is then by the above technical side
Case makes main screen 1 and vice screen 2 that can realize interaction, and this will not be repeated here for specific interaction mode.
In the present embodiment, vice screen 2 is the screen that one kind only may be implemented that touch-control is write and image is presented.The vice screen of this structure
2 may be implemented the information mutual communication with main screen 1.The wisdom blackboard of the embodiment of the present invention is clearly distinguishable from existing main screen 1 and glass
Class writes the wisdom blackboard structure that board group is closed, while also different from the structure of existing multi-screen splicing, and existing multi-screen splicing is
Had using multiple independences from the screen (similar to main screen 1 of the invention) of main process task and is spliced into a larger-size display group
Part, each of which small module may be implemented from main process task.
In a preferred embodiment of the invention, write and plate 22 is presented is also used to respond touch control operation, and present with
The corresponding image information of touch control operation.
In first embodiment, the touch information identification process of vice screen 2 is：Touch-control dress is provided in main screen 1 and vice screen 2
It sets, the touch control operation in vice screen 2 is identified by the touch device in vice screen 2, touch information is obtained after identification, and touch-control is believed
Breath is cranked to main screen 1, and the processor of main screen 1 obtains corresponding main screen video data and vice screen video counts according to this touch information
According to corresponding vice screen video data being then sent to vice screen 2, the image driver in vice screen 2 converts vice screen video data
To drive screen signal one by one, drives screen signal and be given to pixel circuit or drive screen circuit, shown accordingly to control vice screen 2
Image.In the present embodiment, the touch information of vice screen 2 is divided into main screen video data and vice screen video counts by the processor of main screen 1
According to primarily to a touch information is presented simultaneously in main screen 1 and vice screen 2, certainly, the processor of main screen 1 can directly be located
Managing this touch information is only vice screen video data, this vice screen video data is then sent to vice screen 2 and realizes display.
In second embodiment, the difference of this embodiment and first embodiment is, main screen 1 and vice screen 2 share one piece of touch-control
This touch control film is divided into first area and second area, the touch control operation conduct of second area identification in practical operation by film
The touch information of vice screen 2, remaining content are identical as the scheme of first embodiment.
In 3rd embodiment, the difference of this embodiment and first embodiment and second embodiment is, in 3rd embodiment
An individual vice screen image processor is devised in main screen 1, for handling touch information from vice screen 2 and vision signal
The process of forwarding, touch information identification is identical as first embodiment and second embodiment, and the process of the forwarding of vision signal is：It is main
The processor of screen 1 sends video data and gives vice screen image processor, and vice screen image processor is again by video frequency signal processing (as intercepted
Vice screen video data out), or it is transmitted to vice screen 2 without processing, vice screen 2 performs image display.
Hardware is integrated in main screen 1 by the embodiment of the present invention, can make the more free collocation of main screen 1 and vice screen 2, such as
One piece of main screen 1 is arranged in pairs or groups the vice screen 2 of any number, and vice screen 2 needs not distinguish between left and right, also needs not distinguish between model, one piece when sale
Main screen 1 can arrange in pairs or groups the vice screen 2 that multiple same sizes arbitrarily splice, thus be wisdom blackboard compatible adaptation it is more reasonable.
In another preferred embodiment of the invention, wisdom blackboard further includes image driver, and image driver is used
In reception video data, and drives writing that plate 22 is presented and image information corresponding with video data is presented.
Optionally, image driver is set in vice screen 2.Image driver is a kind of device that driving image is shown.
In one embodiment, touch device includes being disposed around the infrared touch-control frame write and presented at 22 profile of plate, and touch
Control driver；Infrared touch-control frame occurs writing the touch control operation presented on plate 22 for identification, and touch-control driver is used for will
Touch control operation is converted into touching signals.
In another embodiment, touch device includes the capacitance touching control film presented between plate 22 and cover board 21 positioned at writing, with
And touch-control driver；Capacitance touching control film occurs writing the touch control operation presented on plate 22 for identification, and touch-control driver is used for
Touching signals are converted by touch control operation.
In another embodiment, touch device includes electromagnetic touch film and touch-control driver, and electromagnetic touch film, which is located to write, is in
Between existing plate 22 and cover board 21, alternatively, electromagnetic touch film, which is located to write, is presented plate 22 backwards to 21 side of cover board；Electromagnetic touch film is used
Occur writing the touch control operation presented on plate 22 in identification, touch-control driver is used to convert touching signals for touch control operation.
Electromagnetic touch film can shield finger maloperation, and the response time is short.
It sets vice screen 2 to touch device and writes the combined structure of plate 22 is presented, and pass through the image-driven in vice screen 2
Device is connect with main screen 1, so that information mutual communication can be achieved between main screen 1 and vice screen 2, is write when touching on the cover board 21 in vice screen 2
When content, touch information can pass to the image driver in vice screen 2, and controllable write of the image driver in vice screen 2 is presented
Plate 22 shows written contents in real time, and the vice screen 2 of this structure may be implemented local removing, and the controller of main screen 1 can be with
Get the touch information in the image driver of vice screen 2, and stored in main screen 1 or main screen 1 on information can pass
Vice screen 2 is passed, is locally or globally shown in vice screen 2, and then realizes information mutual communication.
In a preferred embodiment of the invention, writing and plate 22 is presented is electroluminescent active display device, electroluminescent master
Passive type display device is shown image information corresponding with electric signal by electric signal driving.Electroluminescent finger display device is in response to driving
Electric current or driving voltage and light, it is active refer to show image after display device can receive video data；Usual passive type
Display device, such as liquid crystal writing film, for the principle of actual displayed referring to background technique, liquid crystal writing film product does not have signal or number
According to treatment process, what content it shows, is what operator drawn.
In one embodiment, writing and plate 22 is presented is electronic ink screen.Optionally, this electric ink is arranged in the side of cover board 21
Screen, is arranged touch control film, touch control film is pasted on cover board 21 close to the one side of electronic ink screen between electronic ink screen and cover board 21.
Optionally, several sub-pixels are provided in electronic ink screen, each sub-pixel includes two kinds of oil of black and white
Ink, when electronic ink screen receives the touching signals of touch control film, the sub-pixel of the image driver control corresponding position of vice screen 2
In first state, the sub-pixel of remaining position is in the second state, wherein and first state is black ink towards cover board 21,
White ink deviates from cover board 21, and the second state is white ink towards cover board 21, and black ink deviates from cover board 21.
The electronic ink screen of the present embodiment is based on principle of electrophoresis, and one of embodiment is：Including two plate bases, two bases
Plate opposite flank is coated with a kind of electric ink being made of countless small transparent grains (sub-pixel), and sub-pixel is by with positive and negative electricity
The particles of many black and whites be sealed in liquid microcapsules and formed, the charged particle of different colours can be because applying electric field
It is different and moved towards different directions, the effect of black or white is showed in electric ink screen surfaces.
The displaying principle of electronic ink screen is：Usually all sub-pixels are in the second state, i.e. white ink direction
Cover board 21, black ink deviate from cover board 21, and for touch control film by touch-control, touch control film recognizes touching signals, the image driver of vice screen 2
(driving IC) generates state change by the sub-pixel of touch-control by pixel circuit control, becomes first state from the second state, i.e.,
Black ink is towards cover board 21, and white ink deviates from cover board 21, to realize display.Black-white colors meet the habit of traditional blackboard
It is used, while also complying with the viewing habit of user.
Optionally, touch control film is electromagnetic touch film or capacitance touching control film.Preferably electromagnetic touch film, electromagnetic touch film can have
Shielding finger in effect ground accidentally touches, and the touch-control response time is shorter.
The wisdom blackboard of the present embodiment has the following advantages that：
1, plate 22 is presented using electronic ink screen by that will write, light is irradiated to electronic ink screen through a cover board 21
On sub-pixel, light reflection is completed, it is smaller compared to light loss for existing liquid crystal film vice screen, it is capable of providing higher comparison
Degree；
2, the direct reflection light of ink in the sub-pixel of electronic ink screen, centre needs not move through liquid crystal layer, therefore base
The problem of deflection angle difference is not present in this；
3, of less demanding to the light scattering property of cover board 21 since the contrast of electronic ink screen is higher, it can make
It uses flat glass as cover board 21, does not need to use frosted glass as cover board 21, so that frosted glass effectively be avoided to scratch user
Finger；
4, electronic ink screen is that touch information is received by the image driver of vice screen 2 (driving IC), usage experience with
Main screen 1 is consistent, and selective erase can be realized, thin stroke can be used to go out thick writing, such as set thick pen mode, detect input
Handwriting information, all sub-pixels around person's handwriting in a preset range all change state by the image driver of vice screen 2, from
And it realizes thin pen and inputs thick writing and show.
Optionally, backlight module is set on electronic ink screen, can be used under the low-light levels such as cloudy day.
Optionally, in order to reduce manufacturing cost, vice screen 2 is used into multiple electronic ink screen spicing forming types, specifically, cover board
Multiple electronic ink screens are arranged in 21 side, and multiple electronic ink screen splicings are integrated, are correspondingly arranged on each electronic ink screen
There is touch control film, each electronic ink screen connects the image driver of a vice screen 2, after the image driver series connection of multiple vice screens 2
It is electrically connected with main screen 1.Alternatively, sharing a touch control film after multiple electronic ink screen splicings.
In addition, the ink colors of the sub-pixel of electronic ink screen are not limited to black ink and white ink, can also for it is red,
The combination of any two kinds of ink colors in green, basket.The cell for being responsible for Color perception in human eye can perceive RGB (red, green, blue)
Three colors, therefore select one of this three kinds of colors as background color, picture can be improved as text color in another color
Contrast has the function that clear writing is easily recognized.
Under 1 starting state of main screen, the display of vice screen 2 can be controlled by main screen 1, convenient and 1 information mutual communication of main screen, such as
It can be used as the extension that main screen 1 shows content, realize that greater area of image mosaic, common usage scenario are：1, picture is shown
The longer image of roll form, vice screen 2 can splice with main screen 1 to be shown；2, a certain hall class of teacher, main screen 1 show courseware part,
Vice screen 2 shows annotation part, controls vice screen 2 by main screen 1, the courseware of certain one page and corresponding annotation can be formed associated figure
Picture, to facilitate output to student one content that is complete, continuously giving lessons.
In addition, since vice screen 2 is equipped with independent image driver, so that the touch-control and display between vice screen 2 and main screen 1 are
Independently, it is ensured that the independent of vice screen 2 uses.
In the present embodiment, the two sides of main screen 1 are respectively arranged with a vice screen 2, and it is equal that plate 22 is presented in the writing of two vice screens 2
For electronic ink screen.
Alternatively, wisdom blackboard includes a main screen 1 and a vice screen 2, wherein the side of main screen 1, vice screen is arranged in vice screen 2
It is electronic ink screen that plate 22, which is presented, in 2 writing.
In another embodiment, writing and plate 22 is presented is organic EL display panel (i.e. OLED screen, following OLED screens).Have
Organic electro luminescent display screen is spontaneous optical screen, does not need setting backlight module, and light operation is taken also to need not move through liquid crystal layer,
Therefore it can realize high contrast, be suitable for using in classroom.
A kind of basic structure of OLED is by the indium tin oxide (ITO) of a thin and transparent tool characteristic of semiconductor, with electric power
Anode be connected, add another metallic cathode, be bundled into the structure such as sandwich.Include in total layer:Hole passes
Defeated layer (HTL), luminescent layer (EL) and electron transfer layer (ETL).When supplying power to appropriate voltage, positive hole and cathode electricity
Lotus will combine in luminescent layer, generate light, configure different materials according to luminescent layer and generate red, green and blue RGB three primary colours, structure
At basic color.The characteristic of OLED is that oneself shines, and unlike TFT LCD needs backlight, therefore visibility and brightness are high, secondly
It is that voltage requirements are low and power saving efficiency is high, and has many advantages, such as that reaction is fast, light-weight, thickness is thin, simple structure and at low cost.
It is preferable to use mos structure pixel-driving circuit (i.e. TFT layers or battle array for the OLED screen of the present embodiment
Column circuits), metal-oxide semiconductor (MOS) is suitble to large scale preparation, material is also more cheap, is suitable for compared to silicon-based semiconductor
Among the blackboard for education of less demanding of the fine and smooth degree to display picture, the cost of product is advantageously reduced.In addition, preparation side
The modes such as printing, printing can be used in formula, avoid generating pollution.
OLED includes multiple pixels, and pixel is made of first sub-pixel and second sub-pixel, the first sub-pixel and the second son
Pixel color is different.Preferably, the first sub-pixel is green, and the second sub-pixel is red.Presently commercially available OLED product is general
It is formed for monochromatic pixel or three-color pixel or four color pixels, wherein monochromatic pixel product is in case market, in early days with monochrome
Dial plate, based on the small size display screens such as instrument board.Three-color pixel refers to general Mobile phone screen, and the products such as TV, it is wrapped as the aforementioned
Include tri- sub-pixels of RGB.Four colors or polychrome pixel are the shared pixel or white light blast picture for increasing toning on the basis of RGB
Element.
In the present embodiment, OLED screen only includes red and green two sub-pixels, can be effectively reduced OLED screen
Cost has more practicability.In addition, 1. due to only include two color pixels, reduce the complexity of pixel circuit, make to make
Standby cost is declined；2. high contrast may be implemented in a liang color pixel, and provides some optional secondary colours, wisdom blackboard is improved
Ease for use；3. the luminescent lifetime of blue light material is always the major reason for limiting OLED screen display life, by selecting feux rouges
The service life of OLED screen then can be improved with green light.
Preferably, organic EL display panel is active matrix type organic electroluminescence display screen, that is, writes and plate is presented
22 be active OLED screen.
In other embodiments, writing and plate 22 is presented is LED screen, it is preferred that writing and plate 22 is presented is miniLED screen.
MiniLED screen, that is, small spacing LED screen is and to keep panel color very good direct-light type LED backlight module downsizing, right
It is higher than very.From the point of view of the LCD panel backlight module of a piece of pen electricity, MiniLED may use 6,000 to 7,000 LED, and
It is thin very much, meet light and short trend.
In the present embodiment, the two sides of main screen 1 are respectively arranged with a vice screen 2, and it is equal that plate 22 is presented in the writing of two vice screens 2
For spontaneous optical screen.
Plate 22 is presented as liquid crystal display in addition, writing.
In the description of this article, it is to be understood that term " on ", "lower", " right side ", etc. orientation or positional relationships be based on
Orientation or positional relationship shown in the drawings is merely for convenience of description and simplification and operates, rather than the dress of indication or suggestion meaning
It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to limit of the invention
System.In addition, term " first ", " second ", are only used to distinguish between description, have no special meaning.
In the description of this specification, the description of reference term " embodiment ", " example " etc. means to combine the embodiment
Or example particular features, structures, materials, or characteristics described are included at least one embodiment or example of the invention.?
In this specification, schematic expression of the above terms be may not refer to the same embodiment or example.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this narrating mode of specification be only be to understand device, those skilled in the art should
It considers the specification as a whole, the technical solutions in the embodiments can also be appropriately combined, and forming those skilled in the art can
With the other embodiments of understanding.
The technical principle of the invention is described above in combination with a specific embodiment.These descriptions are intended merely to explain of the invention
Principle, and shall not be construed in any way as a limitation of the scope of protection of the invention.Based on the explanation herein, the technology of this field
Personnel can associate with other specific embodiments of the invention without creative labor, these modes are fallen within
Within protection scope of the present invention.
Claims (22)
1. a kind of wisdom blackboard, including main screen and the vice screen that the main screen side is arranged in, which is characterized in that the vice screen includes
Cover board writes presentation plate and touch device, and the touch device occurs for identification in the touch-control behaviour for writing and presenting on plate
Make；
The main screen is used to generate video data according to the touch control operation；
Plate is presented in response to the video data in the writing, and image information corresponding with the video data is presented.
2. wisdom blackboard according to claim 1, which is characterized in that the writing is presented plate and is also used to respond the touch-control
Operation, and image information corresponding with the touch control operation is presented.
3. wisdom blackboard according to claim 1, which is characterized in that further include image driver, described image driver
For receiving video data, and drives the writing that plate is presented and image information corresponding with the video data is presented.
4. wisdom blackboard according to claim 3, which is characterized in that described image driver is set in the vice screen.
5. wisdom blackboard according to claim 1, which is characterized in that the touch device includes being disposed around the writing to be in
Infrared touch-control frame and touch-control driver at existing web wheel exterior feature；The infrared touch-control frame occurs for identification in the book
The touch control operation presented on plate is write, the touch-control driver is used to convert touching signals for the touch control operation.
6. wisdom blackboard according to claim 1, which is characterized in that the touch device includes being located at the writing to present
Capacitance touching control film and touch-control driver between plate and the cover board；The capacitance touching control film occurs for identification described
The touch control operation presented on plate is write, the touch-control driver is used to convert touching signals for the touch control operation.
7. wisdom blackboard according to claim 1, which is characterized in that the touch device includes electromagnetic touch film and touch-control
Driver, the electromagnetic touch film is located at the writing and presents between plate and the cover board, alternatively, the electromagnetic touch film is located at
Backboard is presented to the cover board side in the writing；The electromagnetic touch film occurs to present on plate in the writing for identification
Touch control operation, the touch-control driver are used to convert touching signals for the touch control operation.
8. wisdom blackboard according to claim 1, which is characterized in that plate is presented as electroluminescent active display dress in the writing
It sets, the electroluminescent active display device is shown image information corresponding with the electric signal by electric signal driving.
9. wisdom blackboard according to claim 8, which is characterized in that it is electronic ink screen that plate, which is presented, in the writing.
10. wisdom blackboard according to claim 8, which is characterized in that it is aobvious for organic electroluminescent that plate is presented in the writing
Display screen.
11. wisdom blackboard according to claim 8, which is characterized in that it is liquid crystal display that plate, which is presented, in the writing.
12. wisdom blackboard according to claim 8, which is characterized in that it is LED screen that plate, which is presented, in the writing.
13. wisdom blackboard according to claim 9, which is characterized in that be provided with backlight module on the electronic ink screen.
14. the wisdom blackboard according to any one of claim 9 to 12, which is characterized in that plate is presented by more in the writing
A unit is presented plate splicing and is integrated.
15. wisdom blackboard according to claim 14, which is characterized in that the touch device includes being located at the writing to be in
Capacitance touching control film and touch-control driver between existing plate and the cover board；The capacitance touching control film is directed to institute for identification
The touch control operation write and plate is presented is stated, the touch-control driver is used to convert touching signals for the touch control operation；
The unit presents and is correspondingly arranged on the touch control film on plate, and the unit is presented plate and is separately connected the touch-control driving
Device.
16. wisdom blackboard according to claim 9, which is characterized in that it include several pixels in the electronic ink screen,
The first side of the pixel has the first color, and the second side of the pixel has the second color, first color and
Second color is different.
17. wisdom blackboard according to claim 16, which is characterized in that first color be black, green, red,
Purple, blue, grey, it is orange in any one, second color be white.
18. wisdom blackboard according to claim 10, which is characterized in that the organic EL display panel is active square
Configuration organic EL display panel.
19. wisdom blackboard according to claim 18, which is characterized in that the organic EL display panel includes multiple
Pixel, the pixel are made of first sub-pixel and second sub-pixel, first sub-pixel and second sub-pixel colors
It is different.
20. wisdom blackboard according to claim 19, which is characterized in that first sub-pixel is green, and described second
Sub-pixel is red.
21. wisdom blackboard according to claim 1, which is characterized in that the two sides of the main screen are respectively equipped with described in one
Vice screen.
22. according to claim 1 to 13 described in any item wisdom blackboards, which is characterized in that the cover board is frosted glass, Ya Ke
Power plate or flat glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811125908.XA CN108920023B (en) | 2018-09-26 | 2018-09-26 | Intelligent blackboard |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811125908.XA CN108920023B (en) | 2018-09-26 | 2018-09-26 | Intelligent blackboard |
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| CN108920023B CN108920023B (en) | 2024-05-10 |
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| CN112216158A (en) * | 2020-11-09 | 2021-01-12 | 广州云蝶科技有限公司 | Organic light emitting semiconductor OLED intelligent blackboard |
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| Publication number | Publication date |
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| CN108920023B (en) | 2024-05-10 |
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