CN201662946U - Dual-touch display - Google Patents
Dual-touch display Download PDFInfo
- Publication number
- CN201662946U CN201662946U CN2010201717610U CN201020171761U CN201662946U CN 201662946 U CN201662946 U CN 201662946U CN 2010201717610 U CN2010201717610 U CN 2010201717610U CN 201020171761 U CN201020171761 U CN 201020171761U CN 201662946 U CN201662946 U CN 201662946U
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- display screen
- touch
- control
- display
- cpu
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- 230000006698 induction Effects 0.000 claims description 17
- 230000001939 inductive effect Effects 0.000 abstract 6
- 230000010354 integration Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000010355 oscillation Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000010897 surface acoustic wave method Methods 0.000 description 1
- 230000004304 visual acuity Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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Abstract
The utility model provides a dual-touch display which consists of a display screen, an inductive type touch control circuit and a resistance type touch screen; the display screen consists of TFT glass, a display screen drive circuit and an LED back light module; the inductive type touch control circuit includes an inductive receiving board, a frequency discriminator, a level comparator, a scanning circuit and a CPU which are mutually connected; the inductive receiving board is arranged below the LED back light module; the inductive type touch control circuit is connected with the display screen through a PC host; the resistance type touch screen is connected with the CPU and then is arranged between a front frame and the TFT glass; the CPU is respectively connected with the level comparator and the frequency discriminator; the display screen is communicated with the PC host through the display screen drive circuit to enable the PC host to simultaneously have the dual-touch functions of inductive type and resistance type. The dual-touch display has the technical advantages of more humanity design, high technical integration, easy operation, flexible use and large market prospect.
Description
Technical field
The utility model relates to a kind of combined type display device, is meant a kind of display that has dual touch controllable function especially.
Background technology
Touch technology mainly contains resistance-type at present, condenser type, infrared-type, surface acoustic wave type and inductance type etc., various touch control manners all have its characteristics separately, reason owing to cost and technology, resistance-type and capacitance-type strain gauge are with comparatively extensive, but the technology of inductance type touch-control has had tremendous development in recent years, and because it high transmission rate that possesses, high resolving power, feature of long life, more and more be subjected to the attention of industry, development along with technology, its cost also significantly reduces, for the widespread use of inductance type touch-control provides condition, and the inductance type touch-control must use pointer, certain limitation is arranged in use, promptly can only adopt special pens to operate, do not having to realize any operation under the situation of special pens.
In addition, existing electric resistance touch-control and capacitance touching control can be operated with finger or writing pencil, but the stroke of writing is same thickness all, existence can not embody the sorry of writer's written handwriting, can't embody Writer's Calligraph Art, comparatively stiff, its range of application is restricted.
Summary of the invention
For overcoming the existing deficiency of background technology, the utility model proposes a kind of rational in infrastructure, fast and accurate for positioning two touch control displays, in easy to operate, can satisfy Writer's individual character and represent demand.
For achieving the above object, the utility model is achieved by the following technical programs: a kind of pair of touch control display, by display screen, inductance type touch-control control circuit, resistive touch screen is formed, wherein display screen comprises TFT glass, display drive circuit, the LED-backlit module, inductance type touch-control control circuit comprises the induction dash receiver, frequency discriminator, level comparator, sweep circuit and CPU, resistive touch screen is connected with CPU, the induction dash receiver places the below of LED-backlit module, inductance type touch-control control circuit links to each other with display screen by the PC main frame, the surface pressure of display screen is equipped with preceding frame, between frame and the TFT glass, display screen communicated with the PC main frame by display drive circuit before resistive touch screen placed.
The further technical measures of the utility model are, sweep circuit joins with induction dash receiver, level comparator, frequency discriminator respectively, and CPU joins with level comparator, frequency discriminator respectively, and CPU is connected on the PC main frame by series bus controller.
The induction dash receiver is used to receive the frequency signal of extraneous pointer, the effect of resistive touch screen then is that reply is write under the situation of pointer not having, frequency discriminator is used to detect the signal frequency of writing on the display screen, sweep circuit is used for determining writing position, is presented to display screen through the PC main frame by the CPU output signal.
Resistive touch screen directly is connected with CPU, when finger or writing pencil when on resistive touch screen, clicking or writing, impedance on the loop of resistive touch screen changes, CPU carries out can determining after the A/D conversion coordinate of its click location to this signal, and the effect of resistive touch screen is not have also can to carry out touch control operation under the situation of pointer.
Compared with prior art, technical advantage of the present utility model is:
1: by induction dash receiver and the resistive touch screen that is provided with, all can easily not realize the control of PC main frame under the situation of pointer and write operation pointer being arranged and, induction dash receiver and resistive touch screen are responded to respectively and are discerned separately signal, each takes charge of its duty, abandoned traditional single mode of operation, the two touch-controls of resistance-type and inductance type have been realized, dye-in-the-wood individual character.
2: under two kinds of simultaneous situations of touching signals, adopt the preferential mode of inductance type touch-control, guarantee can not occur the mistake control of PC main frame.
3: and adopt integral structure, resistive touch screen is installed between former frame and the TFT glass, the induction dash receiver is installed in the below of LED-backlit module, overcome the problem of location and displacement, display color is abundanter, and have characteristics such as environmental protection, energy-conservation, life-span is long, product is thinner, become the inexorable trend of display device development;
4: novel in design, multiple functional, rational in infrastructure, installation is easy, practicality is high, the promotional value height.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is a STRUCTURE DECOMPOSITION synoptic diagram of the present utility model;
Fig. 2 is a schematic block circuit diagram of the present utility model.
Among the figure: 1, display screen, 2, inductance type touch-control control circuit, 3, resistive touch screen, 4, TFT glass, 5, display drive circuit, 6, the LED-backlit module, 7, induction dash receiver, 8, frequency discriminator, 9, level comparator, 10, sweep circuit, 11, CPU, frames before 12, the PC main frame, 13,, 14, series bus controller, 15, the back metal plate.
Embodiment
With reference to shown in Figure 1; the centre of frame 14 and TFT glass 4 before resistive touch screen 3 of the present utility model places; induction dash receiver 7 places the below of LED-backlit module 6; the below of induction dash receiver 7 also is provided with back metal plate 16; the preceding frame 14 and the back metal plate 16 that are provided with can play a protective role to integral body, and mutual group has been dressed up incorporate pair of touch control display.
With reference to shown in Figure 2, during use, when on display screen, clicking or writing, can produce the signal of an oscillation frequency with pointer, after the induction dash receiver 7 that be provided with this moment receives the signal of this oscillation frequency, sweep circuit 10 scans induction dash receiver 7 by the frequency of 6MHz, cycle to induction dash receiver 7 run-downs is 0.2ms, level comparator 9 to each scan period interscan to signal and the maximum level signal that has obtained in this cycle carry out level ratio, determine that by sweep circuit 10 and level comparator 9 induction dash receiver 7 receives the location coordinate of signal, the scan address of its maximum level signal is the location coordinate of pointer, with the signal input CPU11 that receives, the output signal of sweep circuit 10 is also imported frequency discriminator 8 simultaneously, is level signal by frequency discriminator 8 with the conversion of signals of oscillation frequency, through the A/D of CPU11 conversion, the nib that is about to pointer is under pressure and is for conversion into digital signal, CPU11 imports PC main frame 12 with the location coordinate signal of input and the digital signal of pressure after series bus controller 14 is converted to the USB serial signal, operate accordingly promptly after PC main frame 12 is handled and be delivered to display drive circuit 5 by the VGA port, the person's handwriting of writing is presented on the TFT glass 4, shows and write people's written handwriting.
When finger or pointer when on resistive touch screen 3, clicking or writing, impedance on the loop of resistive touch screen 3 changes, CPU11 carries out can determining its location coordinate after the A/D conversion to this signal, CPU11 imports PC main frame 12 with the location coordinate signal of input after series bus controller 14 is converted to the USB serial signal, operate accordingly promptly after PC main frame 12 is handled and be delivered to display drive circuit 5 by the VGA port, effect then is also can carry out touch control operation with finger under the situation of pointer and write not having.
When the situation of electric resistance touch-control clicking operation and inductance type pointer clicking operation occurring simultaneously, preferential with the inductance type pointer, this moment, electric resistance touch-control was invalid.
Claims (5)
1. two touch control display, formed by display screen, inductance type touch-control control circuit, resistive touch screen, it is characterized in that: display screen is made up of TFT glass, display drive circuit, LED-backlit module, inductance type touch-control control circuit comprises induction dash receiver, frequency discriminator, level comparator, sweep circuit and CPU, resistive touch screen is connected with CPU, the induction dash receiver places the below of LED-backlit module, inductance type touch-control control circuit links to each other with display screen by the PC main frame, and the surface pressure of display screen is equipped with preceding frame.
2. pair touch control display according to claim 1 is characterized in that: described resistive touch screen places between preceding frame and the TFT glass.
3. pair touch control display according to claim 1 is characterized in that: described sweep circuit joins with induction dash receiver, level comparator, frequency discriminator respectively.
4. pair touch control display according to claim 1 is characterized in that: described CPU joins with level comparator, frequency discriminator respectively, and CPU is connected on the PC main frame by series bus controller.
5. pair touch control display according to claim 1 is characterized in that: described display screen communicates with the PC main frame by display drive circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201717610U CN201662946U (en) | 2010-04-20 | 2010-04-20 | Dual-touch display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201717610U CN201662946U (en) | 2010-04-20 | 2010-04-20 | Dual-touch display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201662946U true CN201662946U (en) | 2010-12-01 |
Family
ID=43233365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201717610U Expired - Lifetime CN201662946U (en) | 2010-04-20 | 2010-04-20 | Dual-touch display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201662946U (en) |
-
2010
- 2010-04-20 CN CN2010201717610U patent/CN201662946U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GUANGZHOU ZHAOWEI ELECTRONIC TECHNOLOGY DEVELOPMEN Free format text: FORMER OWNER: LIN HUAN Effective date: 20110517 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 518000 4-508, JILONG BUILDING, JILONG VILLAGE 2, HUANGGANG, FUTIAN DISTRICT, SHENZHEN CITY, GUANGDONG PROVINCE TO: 510163 NO. 1, ZIBIAN, 3/F, ZIBIAN BUILDING M1, NO. 228-238, QIAOZHONG MIDDLE ROAD, LIWAN DISTRICT, GUANGZHOU CITY, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110517 Address after: 510163 Guangzhou, Guangdong, Liwan District bridge in the middle of the road 228-238, building M1, building No. 3, No. 1 Patentee after: Guangzhou Zhaowei Electronic Technology Development Co.,Ltd. Address before: 518000, Guangdong, Shenzhen province Futian District Kong Gang Ji Long Dragon Village, Kyrgyzstan dragon building, 4-508 Patentee before: Lin Huan |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 510163 Guangzhou, Guangdong, Liwan District bridge in the middle of the road 228-238, building M1, building No. 3, No. 1 Patentee after: Guangzhou Wei Wei electronic Polytron Technologies Inc Address before: 510163 Guangzhou, Guangdong, Liwan District bridge in the middle of the road 228-238, building M1, building No. 3, No. 1 Patentee before: Guangzhou Zhaowei Electronic Technology Development Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190312 Address after: 510145 3rd floor, 19 Hailong Road, Nannanjie, Liwan District, Guangzhou City, Guangdong Province Patentee after: Guangzhou Hechun Automation Technology Co., Ltd. Address before: 510163 Guangzhou Liwan District, Guangdong Province, 228-238 Qiaozhong Road, self-compiled M1 Building 3 Building, self-compiled No. 1 Patentee before: Guangzhou Wei Wei electronic Polytron Technologies Inc Effective date of registration: 20190312 Address after: 510145 3rd floor, 19 Hailong Road, Nannanjie, Liwan District, Guangzhou City, Guangdong Province Patentee after: Guangzhou Hechun Automation Technology Co., Ltd. Address before: 510163 Guangzhou Liwan District, Guangdong Province, 228-238 Qiaozhong Road, self-compiled M1 Building 3 Building, self-compiled No. 1 Patentee before: Guangzhou Wei Wei electronic Polytron Technologies Inc |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101201 |