CN101739190B - Hand writing display device with capacitance type touch control keys - Google Patents
Hand writing display device with capacitance type touch control keys Download PDFInfo
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- CN101739190B CN101739190B CN200810226237A CN200810226237A CN101739190B CN 101739190 B CN101739190 B CN 101739190B CN 200810226237 A CN200810226237 A CN 200810226237A CN 200810226237 A CN200810226237 A CN 200810226237A CN 101739190 B CN101739190 B CN 101739190B
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Abstract
The invention provides a hand writing display device with capacitance type touch control keys, belonging to the field of display equipment. The device comprises a shell, a capacitance inducing board, an inducing piece array, a processor, a control board, an antenna board, a capacitance type key board and a liquid crystal screen, wherein the capacitance type key board transmits the keypress information of a user to the capacitance inducing board; trigger signals are transmitted to the processor by the inducing piece array on the capacitance inducing board, and after the trigger signals are processed, the signals are transmitted to the control board; and the control board is used for transmitting final information to a computer to process and display. The display device realizes the functions of external drive boards, the capacitance type touch control keys and electromagnetic hand writing input and can directly display a track drawn by the user on a display screen so as to achieve the purpose that what the user writes is what the user sees. Required functional key operations or slide operations can be realized only by slightly touching or sliding, and the function of ordinary keys can be completed by depending on inducing keys. The display device has simple structure and high reliability.
Description
Technical field
The invention belongs to field of display devices, relate to a kind of display device, particularly relate to a kind of display device that has capacitance type touch control keys with electromagnetic type handwriting input.The realization of this display device drive plate external, and can directly show user's drawn track on display screen, realize that it is finding that institute is write, this display device is light and handy, and is convenient, is mainly used in handwriting recognition and painting field.
Background technology
The basic display unit of present most computing machine does not all have the function of handwriting input; Can only be used for showing; Function ratio is more single; And on the current market most of display device or hand input device with function key or shift knob all be to adopt key switch, this mechanical switch is limited serviceable life, and outward appearance is outmoded.
Capacitance type touch control keys is longer compared with the conventional keys life-span; Reaction is sensitiveer; Only need to touch in the touch area gently or slide and just can accomplish required operation, the effect that common key-press promptly can reach clicking trigger need be set on shell, rely on touch control induction key-press just can accomplish the function of common key-press; Simple in structure, reliability is high.
In the existing electromagnetic type hand writing display device,, can directly show user's drawn track on display screen though can user's hand-written operation be responded fast; Realize that it is finding that institute is write; But do not adopt the capacitance touching control induced key mostly, the capacitance touching control induced key need not be provided with the effect that common key-press promptly can reach clicking trigger, relies on touch control induction key-press just can accomplish the function of common key-press like this; Simple in structure, reliability is high.
So; Need a kind of new-type electronic product, this product can be applied to the capacitance type touch control keys technology not only to have hand-write input function in the electronic product of electromagnetic type hand writing display device; And realize the capacitance type touch key function simultaneously, make product improve more and be easier to and promote.
Summary of the invention
It is external that technical matters to be solved by this invention provides a kind of drive plate, has capacitance type touch control keys, can realize the portable display apparatus of electromagnetic type handwriting input simultaneously.This display device can directly show user's drawn track on display screen, realizes that it is finding that institute is write.
A kind of hand writing display device that has capacitance type touch control keys comprises shell, it is characterized in that, also comprises: capacitive sensing plate, sensing chip array, processor, control panel, antenna plate, capacitance key plate and liquid crystal display;
The capacitance key plate links to each other with shell, is covered with the sensing chip array on the capacitive sensing plate of capacitance key plate correspondence position, and sensing chip array and processor are solidificated on the capacitive sensing plate, and control panel is controlled the signal of processor output.
Said capacitance key plate is used for importing user's button operation; And these operation informations are imported into to the capacitive sensing plate; Pass to control panel after by the sensing chip array above the capacitive sensing plate trigger pip being passed to processor processes, by control panel final control key information is passed to liquid crystal display and show.
Said sensing chip array, processor are solidificated on the capacitive sensing plate, carry out the signal transmission each other.
Said capacitance key plate comprises click keys district and slip key zone, and there is the sensing chip array on the capacitive sensing plate position that keypad is corresponding, and each slip key zone is corresponding with a plurality of sensing chips in the sensing chip array.
At least one click keys district of said capacitance key plate, corresponding enclosure position is provided with the capacitive sensing plate in the click keys district, with the capacitive sensing plate of click keys district correspondence position on be covered with at least one sensing chip.
Click keys district that said capacitance key plate is corresponding and slip key zone and shell are in aggregates, are the concave shaped groove, or indicate with pattern.
The invention has the beneficial effects as follows the effect that common key-press promptly can reach clicking trigger need be set that rely on touch control induction key-press just can accomplish the operation of common key-press, simple in structure, reliability is high on shell.
Description of drawings
Fig. 1 is the outside drawing that the present invention has the electromagnetic type hand writing display device of capacitance type touch control keys;
Fig. 2 is the capacitance key plate outside drawing of the present invention's electromagnetic type hand writing display device of having capacitance type touch control keys;
Fig. 3 is the fundamental diagram that the present invention has the electromagnetic type hand writing display device of capacitance type touch control keys;
Fig. 4 is the embodiment synoptic diagram that the present invention has the electromagnetic type hand writing display device of capacitance type touch control keys.
Among the figure: 1, liquid crystal display; 2, control panel; 3, processor; 4, sensing chip array; 5, capacitive sensing plate; 6, shell; 7, capacitance key plate; 701, click keys district; 702, slip key zone 8, writing pencil.
Embodiment
Below in conjunction with accompanying drawing principle of the present invention and implementation method are described:
The present invention combines electromagnetic type handwriting pad and display, can on display screen, carry out hand-writtenly, realizes the electromagnetic type handwriting input; Can replace traditional drawing boards like this; And reaching institute, to write be being seen real-time display effect, adopts capacitance type touch control keys simultaneously, replaced traditional key-press formula switch; Can in the touch area on display screen both sides, click and slide, realize the operation of clicking and sliding.
Have the capacitance type touch control keys hand writing display device, as shown in Figure 3, comprise shell 6, capacitive sensing plate 5, sensing chip array 4, processor 3, control panel 2, capacitance key plate 7.
Processor 3 is converted into these trigger pips key information and is delivered to control panel 2 through SPI interface or IIC interface, and control panel 2 transmits by the USB interface agreement, and keyed information is passed to liquid crystal display 1.By liquid crystal display 1 result is presented on the screen; Simultaneously control signal corresponding is back to control panel 2 through the USB interface agreement; Control panel 2 passes to processor 3 through SPI or IIC interface with corresponding control information again and handles, and this user's control procedure finishes.
As shown in Figure 1; Be provided with capacitance key plate 7 on the surface of shell 6; Capacitance key plate 7 comprises slip key zone 702 and click keys district 701, and capacitance key plate 7 is parts of shell 6, and is all as a whole when carrying out product structure design and finished product injection moulding with shell 6.In the present embodiment, two chip capacitor formula keypads 7 lay respectively at the right and left of liquid crystal display 1 screen.
As shown in Figure 2; Said capacitance key plate 7 adopts the CY8C20334 main control chip; Comprise click keys district 701 and slip key zone 702; There is the sensing chip array 4 on the capacitive sensing plate 5 capacitance key plate 7 corresponding positions, and each slip key zone 702 is corresponding with a plurality of sensing chips in the sensing chip array 4.The user touches different induction zones respectively and realizes different slips and clicking operation.The degree of depth of the indent in slip key zone 702 and click keys district 701 is suitable with the size and the degree of depth of ordinary person's finger with size.For slip key zone 702; Sensing chip 6 by the multi-disc sensing chip array 4 that opposite position solidifies on capacitive sensing plate 5 is responded to; When finger slides in slip key zone 702, can obtain a continually varying electrical effect, be equivalent to respond the result of continuous action.For click keys district 701, can form by the independent sensing chip in the sensing chip array 4 on the capacitive sensing plate 5 of portion's opposite position within it, also can form by a plurality of sensing chips.
As shown in Figure 4, the situation when accepting writing pencil 8 inputs for this device has been drawn a pentagram with the writing pencil 8 of this matched with devices on liquid crystal display 1,
According to the principle of electromagnetic induction, the resonance coil in the writing pencil 8 is sensed the higher hamonic wave that coil sends on the antenna plate of liquid crystal display 1, will produce resonance signal; After resonance signal is received by the receiving coil on the antenna plate of liquid crystal display 1; Amplify the back through amplifying circuit and become amplitude and phase angle to signal decomposition by the mlultiplying circuit on the control panel 2; And the processor 3 that is input on the control panel 2 is handled; Calculate X, Y coordinate and the pen pressure at that time of pen, and star-like track drawn on the liquid crystal display 1 directly is presented on the liquid crystal display 1.
The star-like pattern that shows is preserved as picture.Principle is as shown in Figure 3; The click keys district 701 of operating capacitance keypad 7 and slip key zone 702; When the degree of depth of being touched at capacitance key plate 7 when finger reaches the setting threshold of each sensing chip of sensing chip array 4; People's bulk electric field can produce the coupling capacitance effect at each sensing chip of sensing chip array 4, and the relative trigger signal can be delivered to processor 3 places that are solidificated in equally on the capacitive sensing plate 5.
Processor 3 is converted into these trigger pips key information and is delivered to control panel 2 through SPI interface or IIC interface; Control panel 2 transmits by the USB interface agreement; Keyed information is passed to liquid crystal display 1, promptly preserve the operation of this star-like picture, and the result is presented on the liquid crystal display 1; Simultaneously control signal corresponding is back to control panel 2 through the USB interface agreement; Control panel 2 passes to processor 3 through the IIC interface with corresponding control information again, gives processor 3 responses, and expression is preserved successfully.
Claims (5)
1. a hand writing display device that has capacitance type touch control keys comprises shell, it is characterized in that, also comprises: capacitive sensing plate, sensing chip array, processor, control panel, antenna plate, capacitance key plate and liquid crystal display;
The capacitance key plate links to each other with shell; Be covered with the sensing chip array on the capacitive sensing plate of capacitance key plate correspondence position; Sensing chip array and processor are solidificated on the capacitive sensing plate, and the capacitive sensing plate is connected with control panel through data bus, and control panel is controlled the signal of processor output;
Said capacitance key plate comprises click keys district and slip key zone, and there is the sensing chip array on the capacitive sensing plate position that keypad is corresponding, and each slip key zone is corresponding with a plurality of sensing chips in the sensing chip array; When the degree of depth of being touched at the capacitance key plate when finger reached the setting threshold of each sensing chip of sensing chip array, people's bulk electric field produced coupling capacitance effect at each sensing chip of sensing chip array; When pointing when the slip key zone slides, obtain a continually varying electrical effect and carry out slide.
2. according to the said a kind of hand writing display device that has capacitance type touch control keys of claim 1; It is characterized in that: said capacitance key plate is used for importing user's button operation; And these operation informations are imported into to the capacitive sensing plate; The sensing chip array passes to control panel after trigger pip is passed to processor processes above the capacitive sensing plate, by control panel final key information is passed to liquid crystal display and shows.
3. according to the said a kind of hand writing display device that has capacitance type touch control keys of claim 1, it is characterized in that: said sensing chip array, processor are solidificated on the capacitive sensing plate, carry out the signal transmission each other.
4. according to the said a kind of hand writing display device that has capacitance type touch control keys of claim 1; It is characterized in that: at least one click keys district of said capacitance key plate; Corresponding enclosure position is provided with the capacitive sensing plate in the click keys district, with the tablet of click keys district correspondence position on be covered with at least one sensing chip.
5. according to the said a kind of hand writing display device that has capacitance type touch control keys of claim 1, it is characterized in that: click keys district that said capacitance key plate is corresponding and slip key zone and shell are in aggregates, are the concave shaped groove, or indicate with pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN200810226237A CN101739190B (en) | 2008-11-10 | 2008-11-10 | Hand writing display device with capacitance type touch control keys |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810226237A CN101739190B (en) | 2008-11-10 | 2008-11-10 | Hand writing display device with capacitance type touch control keys |
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| CN101739190A CN101739190A (en) | 2010-06-16 |
| CN101739190B true CN101739190B (en) | 2012-09-05 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101882383A (en) * | 2010-06-21 | 2010-11-10 | 汉王科技股份有限公司 | Electronic book reading device with capacitive touch function |
| CN101866559A (en) * | 2010-06-21 | 2010-10-20 | 汉王科技股份有限公司 | E-book reader device with capacitive touch function and touch method thereof |
| CN101872550A (en) * | 2010-06-21 | 2010-10-27 | 汉王科技股份有限公司 | Electronic reading device with capacitor touch button |
| WO2011160571A1 (en) * | 2010-06-21 | 2011-12-29 | 汉王科技股份有限公司 | Electronic book reader device with capacitive touch function and touch method thereof |
| CN101984392B (en) | 2010-11-05 | 2012-02-29 | 华为终端有限公司 | Operation method of simulation hardware button and touch screen terminal |
| US20120218203A1 (en) * | 2011-02-10 | 2012-08-30 | Kanki Noriyoshi | Touch drawing display apparatus and operation method thereof, image display apparatus allowing touch-input, and controller for the display apparatus |
| CN102347755B (en) * | 2011-06-29 | 2013-12-25 | 广东威创视讯科技股份有限公司 | Microswitch trigger device |
| WO2013091182A1 (en) * | 2011-12-21 | 2013-06-27 | Chuang Hsin-Hung | In-hand capacitive touch control accessory |
| CN110368703A (en) * | 2019-07-12 | 2019-10-25 | 深圳市战音科技有限公司 | A kind of drawing board and the method for forming picture |
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| CN2757223Y (en) * | 2004-12-22 | 2006-02-08 | 郦东 | Inductive switch type user interface device and its portable terminal |
| CN2802573Y (en) * | 2004-12-22 | 2006-08-02 | 郦东 | Induction touch keyboard with touch feedback function and its portable terminal |
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| CN2757223Y (en) * | 2004-12-22 | 2006-02-08 | 郦东 | Inductive switch type user interface device and its portable terminal |
| CN2802573Y (en) * | 2004-12-22 | 2006-08-02 | 郦东 | Induction touch keyboard with touch feedback function and its portable terminal |
| CN1969252A (en) * | 2004-12-23 | 2007-05-23 | 郦东 | Inductive switch type user interface device and portable terminal thereof |
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Owner name: BEIJING HANWANG ZHIXUE TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: HANWANG TECH CO., LTD. Effective date: 20140820 |
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Effective date of registration: 20140820 Address after: 100193, room 3, building 5, building 8, 352 West Wang Lu, Haidian District, Beijing Patentee after: Beijing Hanvon Neutrosophy Technology Co. Ltd. Address before: 100094 Beijing, Haidian District, northeast Wang West Road, building three, floor 5, layer 8 Patentee before: Hanwang Tech Co., Ltd. |