CN206312101U - A kind of hand-written double-color display screen - Google Patents
A kind of hand-written double-color display screen Download PDFInfo
- Publication number
- CN206312101U CN206312101U CN201621355910.2U CN201621355910U CN206312101U CN 206312101 U CN206312101 U CN 206312101U CN 201621355910 U CN201621355910 U CN 201621355910U CN 206312101 U CN206312101 U CN 206312101U
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- China
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- type channel
- display screen
- channel fet
- light emitting
- point
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- 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.)
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Abstract
The utility model discloses a kind of handwriting display screen, display screen is made up of multiple light emitting diodes one and light emitting diode two.The positive pole connection circuit of light emitting diode one is powered positive voltage, and negative pole connects the drain electrode of N-type channel FET, and the source electrode connection ground wire of N-type channel FET, grid constitutes feux rouges trigger point；The negative pole connection circuit of light emitting diode two is powered negative voltage, and positive pole connects the drain electrode of P-type channel FET, and the source electrode connection ground wire of P-type channel FET, grid constitutes green glow trigger point.Feux rouges trigger point and green glow trigger point constitute a trigger point, multiple trigger points and the display corresponding formation handwriting screen of point.Writing pencil includes conductive pen point and multi gear rotary switch, with wipe, write feux rouges, write green glow etc. difference gear.Hand-written double-color display screen of the present utility model is input into without computer, single-chip microcomputer etc., simple structure, and it is convenient to write and wipe, with low cost, has a wide range of application.
Description
Technical field
The utility model is related to handwriting display screen technical field, and in particular to a kind of hand-written double-color display screen.
Background technology
Electronic technology fast development, the dot matrix display part of emitting LED as presentation of information important matchmaker
Body, is widely applied in many fields.Therefore the development of emitting LED dot matrix display part, production is also obtained
Rapid development is arrived, and has gradually formed industry, the new industry field as opto-electronic industry.But due to the light-emitting diodes that light
Pipe dot matrix shows power technology, singlechip technology, data communication technology, the display skill that relate in computer and electronic technology
Various scientific domains such as art, memory technology, systems software technology, interface and driving, cause its expensive, it is necessary to by calculating
Machine could change display content, and the skill level of complexity, high equipment cost significantly limit emitting LED point
The range of application that configuration shows.
The content of the invention
For problems of the prior art, the utility model provides a kind of simple structure, and it is convenient to write and wipe, into
This cheap, emitting LED dot matrix double-color display screen having a wide range of application.
To achieve the above object, the technical solution adopted in the utility model is that a kind of handwriting display screen is included hand-written
Screen, writing pencil and display screen, display screen are made up of multiple display point, and each display point includes a He of light emitting diode one
One light emitting diode two, the positive pole of light emitting diode one connects circuit and powers positive voltage by resistance, light emitting diode one
Negative pole connects the drain electrode of N-type channel FET, and the source electrode of N-type channel FET connects ground wire, N-type channel FET
Grid constitutes feux rouges trigger point, and the negative pole of the light emitting diode two is powered negative voltage, light-emitting diodes by resistance connection circuit
The positive pole of pipe two connects the drain electrode of P-type channel FET, the source electrode connection ground wire of P-type channel FET, P-type channel effect
Should the grid of pipe constitute green glow trigger point, one feux rouges trigger point and a green glow trigger point constitute a trigger point, many
Individual trigger point includes conductive pen point and multi gear rotary switch with the display corresponding formation handwriting screen of point, the writing pencil, multi gear
The gear of rotary switch connects power positive voltage, circuit of circuit and powers negative voltage and ground wire respectively.
N-type channel FET is enhanced N-type channel FET.
P-type channel FET is enhanced P-type channel FET.
The gear of multi gear rotary switch includes E grades, W grades, RL grades and GL grades, and E grades of sky connects to form open circuit, W grades of connection ground
Line, RL grades of connection circuit is powered positive voltage, and GL grade connects circuit and power negative voltage.
Power positive voltage, circuit of multi gear rotary switch and circuit to be powered and be equipped with resistance between negative voltage.
Operation principle of the present utility model is：It is conductive when the gear of the multi gear rotary switch on writing pencil is threaded into RL grades
Written band is just pressed, and now conductive pen point is write in handwriting screen, the trigger point in the conductive pen point and handwriting screen of positive voltage
It is in contact so that the enhanced N-type channel FET conducting in touched trigger point, corresponding light emitting diode one is powered
It is luminous, corresponding red writing track is formed on a display screen；The gear of the multi gear rotary switch on writing pencil is threaded to GL grades
When, conductive pen point band is negative to be pressed, and now conductive pen point is write in handwriting screen, in the conductive pen point and handwriting screen of negative voltage
Trigger point is in contact so that the enhanced P-type channel FET conducting in touched trigger point, corresponding light emitting diode
Two electrified light emittings, form corresponding green handwriting trace on a display screen；The gear of the multi gear rotary switch on writing pencil is revolved
During to W grades, conductive pen point ground connection now wipes conductive pen point so that the enhancing in touched trigger point in handwriting screen
Type P-type channel FET and enhanced P-type channel fet gate ground connection, corresponding light emitting diode one or light-emitting diodes
Pipe two is powered off and no longer lighted, and the handwriting trace on display screen is wiped；When not using writing pencil and writing, will be many on writing pencil
When the gear of shelves rotary switch is threaded to E grades, conductive pen point is not charged.
The beneficial effects of the utility model are：The two kinds of displays of color of feux rouges and green glow, book can be realized by writing pencil
Color switching and wiping operation convenience, handwriting screen and display screen separate design, applied widely when writing.It is of the present utility model hand-written
Double-color display screen is input into without computer, single-chip microcomputer etc., simple structure, and it is convenient to write and wipe, with low cost, has a wide range of application.
Brief description of the drawings
Fig. 1 is circuit diagram of the present utility model.
It is masked as in figure：
G, ground wire, Q1, N-type channel FET, Q2, P-type channel FET, DS1, light emitting diode one, DS2, hair
Optical diode two, R, resistance, VCC, circuit are powered positive voltage, and-VCC, circuit are powered negative voltage, E, E grade, W, W grade, RL, RL grade,
GL, GL grade.
Specific embodiment
In conjunction with accompanying drawing, the utility model is described in further detail.
As shown in figure 1, a kind of handwriting display screen, includes handwriting screen, writing pencil and display screen, display screen is shown by multiple
Point is constituted, and each display point includes a light emitting diode one and a light emitting diode two, and light emitting diode one is just
Pole connects circuit and powers positive voltage by resistance, and the negative pole of light emitting diode one connects the drain electrode of N-type channel FET, N-type
The source electrode connection ground wire of channel field-effect pipe, the grid of N-type channel FET constitutes feux rouges trigger point, the light emitting diode
Two negative pole connects circuit and powers negative voltage by resistance, and the positive pole of light emitting diode two connects the leakage of P-type channel FET
Pole, the source electrode connection ground wire of P-type channel FET, the grid of P-type channel FET constitutes green glow trigger point, one
Feux rouges trigger point and a green glow trigger point constitute a trigger point, multiple trigger points and the display corresponding formation handwriting screen of point,
The writing pencil includes conductive pen point and multi gear rotary switch, and the gear of multi gear rotary switch connects circuit and powers positive electricity respectively
Pressure, circuit are powered negative voltage and ground wire.
N-type channel FET is enhanced N-type channel FET.
P-type channel FET is enhanced P-type channel FET.
The gear of multi gear rotary switch includes E grades, W grades, RL grades and GL grades, and E grades of sky connects to form open circuit, W grades of connection ground
Line, RL grades of connection circuit is powered positive voltage, and GL grade connects circuit and power negative voltage.
Power positive voltage, circuit of multi gear rotary switch and circuit to be powered and be equipped with resistance between negative voltage.
When the gear of the multi gear rotary switch on writing pencil is threaded into RL grades, conductive pen point band is just pressed, now by conduction
Nib is write in handwriting screen, and the conductive pen point of positive voltage is in contact with the trigger point in handwriting screen so that touched triggering
Enhanced N-type channel FET conducting in point, the electrified light emitting of corresponding light emitting diode one is formed corresponding on a display screen
Red writing track；When the gear of the multi gear rotary switch on writing pencil is threaded into GL grades, conductive pen point band is negative to be pressed, now
Conductive pen point is write in handwriting screen, the conductive pen point of negative voltage is in contact with the trigger point in handwriting screen so that be touched
Trigger point in the conducting of enhanced P-type channel FET, the electrified light emitting of corresponding light emitting diode two, on a display screen shape
Into corresponding green handwriting trace；When the gear of the multi gear rotary switch on writing pencil is threaded into W grades, conductive pen point ground connection, this
When conductive pen point is wiped in handwriting screen so that enhanced P-type channel FET and enhancing in touched trigger point
Type P-type channel fet gate is grounded, and corresponding light emitting diode one or light emitting diode two are powered off and no longer lighted, display screen
On handwriting trace wiped；When not using writing pencil and writing, the gear of the multi gear rotary switch on writing pencil is threaded to E grades
When, conductive pen point is not charged.
Preferred embodiment of the present utility model described in detail above, it will be appreciated that the ordinary skill people of this area
Member just can make many modifications and variations without creative work according to design of the present utility model, therefore, all this technology necks
Technical staff passes through logic analysis, reasoning or limited reality on the basis of existing technology according to design of the present utility model in domain
Available technical scheme is tested, all should be in the protection domain being defined in the patent claims.
Claims (5)
1. a kind of handwriting display screen, includes handwriting screen, writing pencil and display screen, it is characterised in that display screen is shown by multiple
Point is constituted, and each display point includes a light emitting diode one and a light emitting diode two, and light emitting diode one is just
Pole connects circuit and powers positive voltage by resistance, and the negative pole of light emitting diode one connects the drain electrode of N-type channel FET, N-type
The source electrode connection ground wire of channel field-effect pipe, the grid of N-type channel FET constitutes feux rouges trigger point, the light emitting diode
Two negative pole connects circuit and powers negative voltage by resistance, and the positive pole of light emitting diode two connects the leakage of P-type channel FET
Pole, the source electrode connection ground wire of P-type channel FET, the grid of P-type channel FET constitutes green glow trigger point, one
Feux rouges trigger point and a green glow trigger point constitute a trigger point, multiple trigger points and the display corresponding formation handwriting screen of point,
The writing pencil includes conductive pen point and multi gear rotary switch, and the gear of multi gear rotary switch connects circuit and powers positive electricity respectively
Pressure, circuit are powered negative voltage and ground wire.
2. handwriting display screen as claimed in claim 1, it is characterised in that the N-type channel FET is enhanced N-type ditch
Road FET.
3. handwriting display screen as claimed in claim 1, it is characterised in that the P-type channel FET is enhanced p-type ditch
Road FET.
4. handwriting display screen as claimed in claim 1, it is characterised in that the gear of the multi gear rotary switch include E grades,
W grades, RL grades and GL grades, E grades of sky is connect to form open circuit, and W grades of connection ground wire, RL grade connection circuit is powered positive voltage, and GL grade connects electric
Road powers negative voltage.
5. handwriting display screen as claimed in claim 1, it is characterised in that the multi gear rotary switch and circuit are powered positive electricity
Pressure, circuit to be powered and be equipped with resistance between negative voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621355910.2U CN206312101U (en) | 2016-12-12 | 2016-12-12 | A kind of hand-written double-color display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621355910.2U CN206312101U (en) | 2016-12-12 | 2016-12-12 | A kind of hand-written double-color display screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206312101U true CN206312101U (en) | 2017-07-07 |
Family
ID=59250713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621355910.2U Expired - Fee Related CN206312101U (en) | 2016-12-12 | 2016-12-12 | A kind of hand-written double-color display screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206312101U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110827703A (en) * | 2019-10-29 | 2020-02-21 | 杭州电子科技大学 | Hand-drawn LED lamp board input display method based on similarity correction algorithm |
-
2016
- 2016-12-12 CN CN201621355910.2U patent/CN206312101U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110827703A (en) * | 2019-10-29 | 2020-02-21 | 杭州电子科技大学 | Hand-drawn LED lamp board input display method based on similarity correction algorithm |
| CN110827703B (en) * | 2019-10-29 | 2021-07-27 | 杭州电子科技大学 | Hand-drawn LED lamp board input display method based on similarity correction algorithm |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170707 Termination date: 20191212 |