CN2377626Y

CN2377626Y - Electronic blackboard

Info

Publication number: CN2377626Y
Application number: CN 99220916
Authority: CN
Inventors: 王子亮
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-05-18
Filing date: 1999-05-18
Publication date: 2000-05-10
Anticipated expiration: 2009-05-18

Abstract

The utility model relates to an electronic blackboard used in teaching. A sensor is installed and manufactured on a flat plate display. The utility model can conduct static and dynamic display of text and image, and can also be used as a traditional blackboard for writing on a board surface with a pen or erasing the writing. The utility model has no dust pollution, and provides a dustless blackboard for teaching. The utility model solves the problems in electrified teaching such as the various electrified teaching devices has dispersed functions, the operation is complicated and the use is inconvenient, so the teaching efficiency is raised.

Description

A kind of electronic instruction blackboard

The utility model relates to a kind of audiovisual teaching equipment, is a kind of electronic instruction blackboard of writing with erase feature that has.

For a long time, classroom instruction is to use chalk by the teacher on traditional blackboard, and ruler is write explanation knowledge in the above, and sometimes, on the part-time of a class had been used in and has copied and draw, knowledge capacity was little, and efficiency of teaching is low.For this reason, people exploring always pursue advanced, modern educational aid and teaching pattern.Constantly make and use new educational aid: slide projector, projector, TV and expensive projector etc.With the text that writes, the contents of courses such as image and multimedia courseware are shown to the student, have saved some and have been used for the time of writing on the blackboard, have improved efficiency of teaching accordingly, have alleviated teacher's labour intensity to a certain extent.But these teaching equipments are used for classroom instruction still its significant disadvantage, and except that TV, they are drape cloth on the wall generally, projection in the above then, and equipment must be placed on the front, dais, takes up space and area.Only in the classroom of special use, otherwise valuable instrument and equipment will be shifted from one place to another.The teacher still needs to carry out on blackboard with chalk if need instant writing on the blackboard and the explanation of drawing, and dust pollution still exists, and the purposes of instruments used for education and equipment is disperseed, and plays a role separately.

The purpose of this utility model is to make the various literal that carry out, the function of the instrument and equipment that image shows is united, all focus on the blackboard for education, provide a kind of both the same with the traditional blackboard using method, available straight connecing write and wiped, the electronic instruction blackboard that can carry out literal, image static state again and dynamically show.

The utility model is achieved in that to install on flat-panel monitor makes sensor array, uses the lettering pen that sends transducing signal that is complementary with sensor to write on the display board face, and person's handwriting will show on blackboard; Move on the plate face with the blackboard eraser that sends transducing signal that is complementary with sensor, handwriting erasing can be installed computer host system on blackboard, audio amplifier and telepilot and other servicing unit.

Alleged flat-panel monitor is meant that any one can carry out the flat-panel monitor of employing integrated technique static and that dynamically show or discrete component making.The type of the flat-panel monitor that is adopted according to this electronic instruction blackboard, sensor array can corresponding employing integration mode or discrete components, also can intersect use.The type of the sensor array of making can be a Photosensitive, magnetic sensitive, capacitor type etc.

Realization is write demonstration or is shown and is wiped free of, and its principle is: for each pixel on the display has been equipped with a sensor, accepts transducing signal and signal is offered control circuit by sensor, make the luminous demonstration of pixel or wipe demonstration.It in certain any demonstration on the flat-panel monitor demonstration of the pixel on the electrode crossings of selected certain delegation and a certain row pixel.So, the method of making sensor array is on the glass or other suitable material that adapt with flat panel display size, each row and each row pixel on the corresponding flat-panel monitor, between being expert at and between the row sensor is made crisscross parallel grizzly bar, signal is taken out by the grizzly bar in length and breadth that receives transducing signal, and their point of crossing is exactly the luminous display dot of determining.This is actually to each pixel and has mixed a sensor.Thisly delete that bar is two-layer up and down to be electrode, the centre adds photosensitive layer or the magnetosensitive layer made from photoresist or magnetoresistance material, when when two electrodes add appropriate voltage, excite sensitive layer as unglazed or magnetic signal, the contactor of connecting sensor can not conducting, no signal is sent, and when acting on the sensitive layer with the signal that lettering pen or blackboard eraser send, the resistance of this point changes, cause switching voltage to change and conducting, have signal to send, certain point on the flat-panel monitor shows or demonstration is wiped free of.

Make the related thick film of electronic instruction blackboard of the present utility model and thin film technique, technology and signaling conversion circuit, technology such as light, magnetic signal generation circuit and light, magnetosensitive sense material and capacitance type transducers all belong to known technology, all can in relevant monograph and textbook, find, so, to not remake this and to go deep into detailed explanation, and only will with the part of the utility model close relation specific description and example slightly.

The advantageous effect of the electronic instruction blackboard that the utility model provides is: unified the function of the educational technology equipment of various dispersions uses, can improve the quality of teaching and efficient.The teacher is by the program of the design compilation content of courses in advance, a large amount of writings on the blackboard have been reduced, alleviated teacher's labour intensity, by using various programs and software or providing great mass of data and multimedia messages, for the quantity of information that expands classroom instruction provides strong support by network.Simultaneously, for classroom instruction provides a kind of dust-free blackboard, also can be used as other application such as advertising message board.

Is that example is described further electronic instruction blackboard of the present utility model below in conjunction with Figure of description to make optical sensor on plasma panel display.

Fig. 1 is example one synoptic diagram of making photosensor array;

Fig. 2 is example two synoptic diagram of making photosensor array;

Fig. 3 is example three synoptic diagram of making photosensor array;

Fig. 4 is the lettering pen structural representation;

Fig. 5 is the wiping blackboard structure synoptic diagram;

Fig. 6 is an electronic instruction blackboard profile synoptic diagram;

Fig. 7 is the side view of Fig. 6.

With reference to accompanying drawing 1, a kind of method of making photosensor array is: on a glass plate [9] or other suitable material that adapts with flat-panel monitor [1], each each row of row of pixel on the corresponding flat-panel monitor, between being expert at and between the row sensor is made crisscross grizzly bar, can be in conjunction with the accompanying drawings 3 and description of drawings understand this structure.Horizontal sensor grizzly bar is by transparency electrode [5], photosensitive layer [4], and electrode [3] is formed; The sensor grizzly bar is by transparency electrode [6] longitudinally, photosensitive layer [7], and electrode [8] is formed.At the insulation course [2] of making layer of transparent in length and breadth between the grizzly bar.As shown in drawings, electrode is narrower than photosensitive layer, in order to avoid the contact of two electrodes is short-circuited.

With reference to accompanying drawing 2, the another kind of method of making photosensor array is: lateral light sensor grizzly bar and vertical optical sensor grizzly bar are produced on two glass substrates, go up making electrode [3] at first substrate [10], electrode [5] and photosensitive layer [4] are again from top making layer of transparent insulation course [2].Go up making electrode [6] at second substrate [9], electrode [8] and photosensitive layer [7] are then with two overlapping getting final product of glass plate.

Sticking with glue the photosensor array that agent or other method make above-mentioned two kinds of methods is fixed on the flat-panel monitor [1].

With reference to accompanying drawing 3, another method is: when making flat-panel monitor, photosensor array is produced on its inside, forms cramped construction.As shown in Figure 3, between the per two row pixel capacitors [2] on the flat-panel monitor metacoxal plate [1], make the optical sensor grizzly bar, same, making the optical sensor grizzly bar on front glass substrate [9] inner face between per two row pixel capacitors.Row pixel capacitors between per two sensor grizzly bars comprises R, G, and B three strip electrodes, as [10] among the figure, [11] are shown in [12].Also can be at each R, G, B electrode side burr is made a sensor grizzly bar, but this will raise the cost.[3], [5] and [6], [8] indicate respectively is the electrode of sensor grizzly bar in length and breadth, and [4] and [7] indicate the sensitive layer of sensor grizzly bar in length and breadth respectively.At accompanying

drawing

1,2, in 3, to draw easy and do not make apparent messy of drawing in order to make, the transparent part that the electrode on transparency carrier should draw does not draw, and the shape and the position of the end of only drawing are illustrated.

In the scheme of making magneto-dependent sensor, method is the same with making optical sensor, has only changed photochromics into magnetic-sensitive material.Because Magnetic Sensor is a action of a magnetic field, so, but also fabrication and installation can be without transparency carrier and transparency electrode at the flat-panel monitor back side for sensor.

Make and the method for sensor installation array is flexile, only lift several examples and do an explanation, not with this as restriction.

Describe respectively below in conjunction with accompanying

drawing

4 and 5 pairs of lettering pens of accompanying drawing and blackboard eraser.

The structure of lettering pen as shown in Figure 4, [5] are the lettering pen shell, [1] be the nib, adopt a kind of soft plastic material or other suitable material to make, make it to be adapted at writing on the glass plate, do not damage glass pane surface.Tiny through hole [2] is arranged on the nib, and the transmittance that light emitting diode [3] is sent is come out.One switch [4] is arranged on shell [5], and battery [7] is equipped with in lettering pen inside, and circuit board [6], battery be with common small cell or rechargeable battery, and the profile of lettering pen should be held the appearance design according to what the writer took pen, and it is comfortable naturally to make the user hold pen.

Fig. 5 is the organigram of blackboard eraser, and [2] are shells, and [3] are infrarede emitting diode, is installed in light hole [5] one ends, and light hole can be made into the diameter that varies in size, and is wiped the area that the position varies in size to adapt to, and [4] are power supply and step switch.The effect of step switch is to make all light emitting diodes on the blackboard eraser be divided into the several sections use.As it is luminous respectively to wipe one or several diode of area may command that varies in size.[1] the face pad for adopting nonrigid plastic or other suitable material to make.Not easy not the drawing that are configured to draw such as blackboard eraser internal circuit board and battery.In fact, lettering pen is the same with the blackboard eraser aufbauprinciple, only makes and is easy to write and another makes the shape that Convenient scrubber removes for one.

In the scheme that adopts Magnetosensitive sensor array, be to adopt magnetic pen to write to wipe demonstration, make magnetic pen and magnetic blackboard eraser and all adopt ferromagnetic material, coil is installed in the above with the magnetic blackboard eraser, make electromagnet, several magnetic pole face sizes of device do not wait on blackboard eraser, and ascending electromagnet is divided into several groups, by a step switch control, all belong to known technology, no longer elaborate, be the easy accompanying drawing that also do not draw.

In the scheme that adopts capacitance type transducers, lettering pen and blackboard eraser are made corresponding shape with conductor and are got final product.

On blackboard, write or wipe, depend on that control circuit is set to write still erase status.Can write out several colors with lettering pen, selected by the user, control by internal circuit.

With reference to accompanying drawing 6 and accompanying drawing 7, [3] are the computer host systems that configuration is installed for the electronic instruction blackboard, and [1] is the floppy disk socket, [2] be audio amplifier, [4] be the plate face of electronic instruction blackboard, [5] are telechiric devices, are used for remote-controlled operation to the various functions of blackboard.Just as a simplified diagram of whole blackboard for education, visual actual conditions in installation site of system are selected separately on it for accompanying drawing 6.Because above-mentioned several technique devices all belong to known technology, and be not difficult to install, therefore, be not described further.

Claims

1. an electronic instruction blackboard is by flat-panel monitor, formation such as lettering pen and blackboard eraser, it is characterized in that: on flat-panel monitor, install and made sensor array, write on blackboard with the lettering pen that sends transducing signal that is complementary with sensor, person's handwriting will show on blackboard, move on blackboard with the blackboard eraser that sends transducing signal that is complementary with sensor, person's handwriting will be wiped free of.

2. electronic instruction blackboard according to claim 1, it is characterized in that: on the substrate that adapts with flat-panel monitor, make the row of pixel on sensor and the flat-panel monitor corresponding with row, on substrate, make the grizzly bar of arranging in length and breadth, grizzly bar is two-layer up and down to be electrode, middle one deck is a sensitive layer, and a layer insulating is arranged between the grizzly bar in length and breadth.

3. electronic instruction blackboard according to claim 1 and 2 is characterized in that: sensor array grizzly bar middle layer is a photosensitive layer.

4. electronic instruction blackboard according to claim 1 and 2 is characterized in that: sensor array grizzly bar middle layer is the magnetosensitive layer.

5. electronic instruction blackboard according to claim 1 is characterized in that: sensor array is the row and column of the corresponding flat-panel monitor pixel electrode of grizzly bar difference in length and breadth, is produced on the front-back baseboard of flat-panel monitor.

6. electronic instruction blackboard according to claim 1 is characterized in that: computer host system has been installed, audio amplifier and telechiric device on blackboard.

7. electronic instruction blackboard according to claim 1 is characterized in that: the front end at lettering pen has a light hole, and an end in hole has a luminotron.

8. electronic instruction blackboard according to claim 1, it is characterized in that: lettering pen is made of ferromagnetic material and coil etc.

9. electronic instruction blackboard according to claim 1 is characterized in that: there are several sizes not wait on the blackboard eraser, and ascending transducing signal transmitter unit, they are divided into several groups, by a branch position switch control.

10. electronic instruction blackboard according to claim 1 is characterized in that: sensor array can be made up of discrete component.