CN103793101A - Touch screen achieving method, device and system based on plasma display screen - Google Patents
Touch screen achieving method, device and system based on plasma display screen Download PDFInfo
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- CN103793101A CN103793101A CN201110459556.3A CN201110459556A CN103793101A CN 103793101 A CN103793101 A CN 103793101A CN 201110459556 A CN201110459556 A CN 201110459556A CN 103793101 A CN103793101 A CN 103793101A
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Abstract
The invention provides a touch screen achieving method, device and system based on a plasma display screen to solve the problem in the prior art that the existing touch screen is high in manufacture and maintenance cost. The method includes controlling an addressing electrode and a scanning maintenance electrode of the plasma display screen to generate a position scanning signal to stimulate and locate an ultraviolet light signal; determining the scanning maintenance electrode generating negative level at the moment or the addressing electrode generating high level at the moment according to the ultraviolet light signal receiving moment of a touch device in contact with the plasma display screen; obtaining the position of the touch device in contact with the display screen according to the determined positions of scanning maintenance electrode and the addressing electrode. By means of the method, device and system, touch location can be conducted by utilizing the light-emitting characteristic of the plasma display screen, an additional touch location device is not required, and the manufacture and maintenance cost of the touch screen is saved.
Description
Technical field
The present invention relates to touch-screen field, relate in particular to a kind of touch-screen implementation method, device and system based on plasma display panel (PDP).
Background technology
Common touch screen technology is divided into resistive touch screen, capacitive touch screen and infrared scan touch-screen from manufactured materials at present.
Resistive touch screen is mainly that main structure is to clip one deck PET film between two-layer nano indium tin oxide (ITO) coated glass, in the adjacent one side of film and glass, scribble ITO plated film, ITO has good electric conductivity and the transparency, glass provides mechanical stability, PET film serves as the flexible media that connects two-layer ITO, being imprinted on small separation on glass keeps apart each layer, in the time touching operation, the ITO of film lower floor touches the ITO on upper strata, spread out of corresponding electric signal via sensor, deliver to processor via change-over circuit, be converted into the coordinate figure of screen by computing.
Capacitive touch screen adopts the substrate of glass with zinc oxide coated layer.When electric conductivity felt pen or finger contact arrive screen surface, produce capacitive couplings, from touch point current drawn, touch screen controller is determined X coordinate and the Y coordinate of touch point accordingly.
Infrared scan touch-screen utilizes infrared transmitter and receiver, projects a sightless smooth grid on the segment distance from screen surface.In the time that light beam is blocked, the signal deletion on receiver is detected, and converts the coordinate of touch-screen to.
All touch positioning devices based on additional of existing touch-screen scheme, positioning precision and response speed are subject to the restriction of the performance of additional touch positioning device.Therefore improving touch screen performance needs constantly to increase the complicacy of touch positioning device, thus cause manufacturing and maintenance cost higher.
For the high problem of touch-screen manufacture and maintenance cost in prior art, also do not have prior art to propose effective solution.
Summary of the invention
Fundamental purpose of the present invention is to provide a kind of touch-screen implementation method, device and system based on plasma display panel (PDP), to solve touch-screen manufacture and the high problem of maintenance cost in prior art.
To achieve these goals, according to an aspect of the present invention, a kind of touch-screen implementation method based on plasma display panel (PDP) is provided, the method comprises: step S11: the addressing electrode of controlling plasma panel keeps high level and make the scanning of plasma panel maintain electrode simultaneously producing successively negative level, and then gated sweep maintains electrode and keeps negative level and make addressing electrode produce successively high level simultaneously; Or the scanning of controlling plasma panel maintains electrode and keeps negative level and make the addressing electrode of plasma panel produce successively high level, then controls addressing electrode and keeps high level and make scan electrode produce successively negative level simultaneously simultaneously; Step S13: the moment that receives first ultraviolet signal according to the touching device of contact plasma panel determines that the scanning that produces negative level in this moment maintains electrode, then determines according to the moment that touching device receives second ultraviolet signal the addressing electrode that produces high level in this moment; Or, the moment that receives first ultraviolet signal according to the touching device of contact plasma panel is determined the addressing electrode that produces high level in this moment, and the moment that then receives second ultraviolet signal according to touching device determines that this moment produces low level scanning and maintains electrode; Step S15: maintain electrode according to the scanning of determining and show that with the position of the addressing electrode of determining touching device contacts the position of plasma panel.
Further, step S11 carried out in the free time of display driver waveform, the ultraviolet signal that when shielding plasma panel shows image, touching device receives.
Further, step S13 comprises: obtain the ultraviolet signal that the touching device of contact contact plasma panel receives, and the electric impulse signal that the ultraviolet signal receiving is converted to; Using the moment that receives electric impulse signal as the moment that receives ultraviolet signal, determine that the scanning of this moment generation negative level maintains the addressing electrode of electrode or generation high level.
Further, after step S15, also comprise: according to the position of determined touching device contact plasma panel, respond the touch operation of this position.
According to another aspect of the present invention, a kind of touch-screen implement device based on plasma display panel (PDP) is provided, this implement device comprises: electrode drive module, the scanning that is used for controlling the addressing electrode maintenance high level of plasma panel and make plasma panel simultaneously maintains electrode and produces successively negative level, and then gated sweep maintains electrode maintenance negative level and makes addressing electrode produce successively high level simultaneously; Or the scanning of controlling plasma panel maintains electrode and keeps negative level and make the addressing electrode of plasma panel produce successively high level, then controls addressing electrode and keeps high level and make scan electrode produce successively negative level simultaneously simultaneously; Electrode determination module, determine that for the moment that receives first ultraviolet signal according to the touching device of contact plasma panel the scanning that produces negative level in this moment maintains electrode, the moment that then receives second ultraviolet signal according to touching device is determined the addressing electrode that produces high level in this moment; Or, the moment that receives first ultraviolet signal according to the touching device of contact plasma panel is determined the addressing electrode that produces high level in this moment, and the moment that then receives second ultraviolet signal according to touching device determines that this moment produces low level scanning and maintains electrode; Position determination module, the position that draws touching device contact screen for maintain electrode and the position of the addressing electrode of determining according to the scanning of determining.
Further, electrode drive module is in the free time work of display driver waveform, the electrode determination module ultraviolet signal that also touching device receives when shielding plasma panel and show image.
Further, electrode determination module also for: obtain the ultraviolet signal that the touching device of contact contact plasma panel receives, and the electric impulse signal that the ultraviolet signal receiving is converted to; Using the moment that receives electric impulse signal as the moment that receives ultraviolet signal, determine that the scanning of this moment generation negative level maintains the addressing electrode of electrode or generation high level.
Further, touch-screen implement device provided by the invention also comprises operation respond module, for the position of the touching device contact screen that draws according to position determination module, responds the touch operation of this position.
According to another aspect of the present invention, provide a kind of touch-screen based on plasma display panel (PDP) to realize system, this is realized system and comprises: controller, the scanning that is used for controlling the addressing electrode maintenance high level of plasma panel and make plasma panel simultaneously maintains electrode and produces successively negative level, and then gated sweep maintains electrode maintenance negative level and makes addressing electrode produce successively high level simultaneously; Or the scanning of controlling plasma panel maintains electrode and keeps negative level and make the addressing electrode of plasma panel produce successively high level, then controls addressing electrode and keeps high level and make scan electrode produce successively negative level simultaneously simultaneously; The moment that receives first ultraviolet signal according to the touching device of contact plasma panel determines that the scanning that produces negative level in this moment maintains electrode, and the moment that then receives second ultraviolet signal according to touching device is determined the addressing electrode that produces high level in this moment; Or, the moment that receives first ultraviolet signal according to the touching device of contact plasma panel is determined the addressing electrode that produces high level in this moment, and the moment that then receives second ultraviolet signal according to touching device determines that this moment produces low level scanning and maintains electrode; Maintain according to the scanning of determining the position that the position of electrode and the addressing electrode determined draws touching device contact screen; Plasma display panel (PDP), for producing ultraviolet signal under the control of controller; Touching device, the position of the plasma panel of clicking for contact need, the ultraviolet signal of the plasma panel position receiving, and convert the ultraviolet signal of position to electric impulse signal.
Further, touching device comprises: ultraviolet light receiving trap, for receiving the ultraviolet signal of position of plasma panel; Photoelectric conversion device, connects ultraviolet light receiving trap, for the ultraviolet signal receiving is converted to current signal; Amplifier, connects photoelectric conversion device, for current signal is amplified; Pulse signal reshaper, connects amplifier, for the current signal after amplifying being converted to the location electric signal of electric pulse form.
Further, the ultraviolet signal that controller also shows that for shielding plasma panel touching device receives when image.
Further, touch-screen provided by the invention is realized system and is also comprised: signal transmitting apparatus, sends controller to for the electric impulse signal that touching device is produced.
According to technical scheme of the present invention, the addressing electrode of controlling plasma panel keeps high level and makes the scanning of plasma panel maintain electrode simultaneously producing successively negative level, and then gated sweep maintains electrode and keeps negative level and make addressing electrode produce successively high level simultaneously; Or gated sweep maintains electrode and keeps negative level and make addressing electrode produce successively high level simultaneously, then control addressing electrode and keep high level and make scan electrode produce successively negative level simultaneously; The moment that receives first ultraviolet signal according to the touching device of contact plasma panel determines that the scanning that produces negative level in this moment maintains electrode, and the moment that then receives second ultraviolet signal according to touching device is determined the addressing electrode that produces high level in this moment; Or, the moment that receives first ultraviolet signal according to the touching device of contact plasma panel is determined the addressing electrode that produces high level in this moment, and the moment that then receives second ultraviolet signal according to touching device determines that this moment produces low level scanning and maintains electrode; The position that maintains electrode and addressing electrode according to the scanning of determining show that touching device contacts the position of plasma panel.The present invention utilizes the characteristics of luminescence of plasma panel to touch location, do not need to increase extra touch positioning device, thereby manufacture and the maintenance cost of touch-screen are saved, utilize in addition the high resolving power of plasma panel and high refreshing frequency to improve positioning precision and the response speed of touching device, locating effect is better than existing touch screen technology.
Accompanying drawing explanation
Figure of description is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is according to the schematic diagram of the touch-screen implementation method based on plasma display panel (PDP) of the embodiment of the present invention;
Fig. 2 is according to the schematic diagram of the electrode control of the touch-screen implementation method based on plasma display panel (PDP) of the embodiment of the present invention;
Fig. 3 is according to the schematic diagram of the drive waveforms of the touch-screen implementation method based on plasma display panel (PDP) of the embodiment of the present invention;
Fig. 4 is according to the schematic diagram of the touch-screen implement device based on plasma display panel (PDP) of the embodiment of the present invention;
Fig. 5 is the schematic diagram of realizing system according to the touch-screen based on plasma display panel (PDP) of the embodiment of the present invention;
Fig. 6 is the schematic diagram of realizing the touching device of system according to the touch-screen based on plasma display panel (PDP) of the embodiment of the present invention.
Embodiment
It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the application can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
For understanding better the present invention, first the display mechanism of article on plasma display screen describes.Between the forward and backward panel glass of color plasma display (PDP), there is discharge space, in in this discharge space, be filled with Penning gas, the vacuum ultraviolet phot-luminescence producing by Penning gas glow discharge causes light-emitting phosphor and realizes colored demonstration.The vacuum ultraviolet luminous energy that 147nm and 174nm are sent in Penning gas glow discharge is large, and luminous intensity is high, so PDP generally selects the mixed gas of Ne and Xe to excite red, green, blue light-emitting phosphor, realizes colored demonstration.In the addressing process of PDP, the ultraviolet light that the unit being addressed to has 147nm or 174nm sends.
Fig. 1 is that as shown in Figure 1, the method mainly comprises the steps: according to the schematic diagram of the touch-screen implementation method based on plasma display panel (PDP) of the embodiment of the present invention
Step S11: the addressing electrode of controlling plasma panel keeps high level and make the scanning of plasma panel maintain electrode simultaneously producing successively negative level, then gated sweep maintains electrode and keeps negative level and make addressing electrode produce successively high level simultaneously; Or the scanning of controlling plasma panel maintains electrode and keeps negative level and make the addressing electrode of plasma panel produce successively high level, then controls addressing electrode and keeps high level and make scan electrode produce successively negative level simultaneously simultaneously;
Step S13: the moment that receives first ultraviolet signal according to the touching device of contact plasma panel determines that the scanning that produces negative level in this moment maintains electrode, then determines according to the moment that touching device receives second ultraviolet signal the addressing electrode that produces high level in this moment; Or, the moment that receives first ultraviolet signal according to the touching device of contact plasma panel is determined the addressing electrode that produces high level in this moment, and the moment that then receives second ultraviolet signal according to touching device determines that this moment produces low level scanning and maintains electrode;
Step S15: maintain electrode according to the scanning of determining and show that with the position of the addressing electrode of determining touching device contacts the position of plasma panel.
Step S11 increases by two location waveforms in the addressing of plasma panel separates (ADS) driving method with demonstration, produces the addressing process of two subfields in these two location waveforms.First subfield is that addressing electrode (A electrode) keeps high level, and scanning maintains electrode (Y electrode) and produces successively negative level, and second subfield is that Y electrode keeps negative level and makes A electrode produce successively high level simultaneously.
Fig. 2 is according to the schematic diagram of the electrode control of the touch-screen implementation method based on plasma display panel (PDP) of the embodiment of the present invention, as shown in Figure 2, in the time producing positive pressure differential between A electrode and Y electrode, the unit of this A electrode and Y electrode crossings will produce the ultraviolet light of Penning gas electric discharge, so above-mentioned the first subfield will excite the ultraviolet signal of longitudinal scanning on PDP, and above-mentioned the second subfield can excite the ultraviolet signal of transversal scanning on PDP.Two above-mentioned two subfield generations orders can be selected arbitrarily, both can first carry out transversal scanning and carry out longitudinal scanning, also can first carry out longitudinal scanning and carry out transversal scanning again.
Step S11 can carry out in the free time of display driver waveform, the ultraviolet signal that when shielding plasma panel shows image, touching device receives.Fig. 3 is according to the schematic diagram of the drive waveforms of the touch-screen implementation method based on plasma display panel (PDP) of the embodiment of the present invention, as shown in Figure 3, the process that produces location waveform 302 drive electrodes can be carried out in 31 free times of display waveform take 30 of field synchronizations as the ADS of benchmark, this free time can be chosen in display waveform 31 before, also can be chosen in display waveform 31 after, also can in display waveform 31, adulterate location waveform 32.Transversal scanning and longitudinal scanning both can complete in one, can in two or many, complete respectively according to actual needs.
Step S13 can specifically obtain the ultraviolet signal that receives of touching device of contact plasma panel, and the electric impulse signal that the ultraviolet signal receiving is converted to; Determine that according to the moment that receives electric impulse signal the scanning of this moment generation negative level maintains the addressing electrode of electrode or generation high level.Due to the location positioning of A electrode lateral arrangement and each A electrode, just can determine so the lateral attitude coordinate of touching device touch display screen by definite A electrode, Y electrode is longitudinally arranged and the position of each Y electrode is also determined, just can determine so the lengthwise position coordinate of touching device touch display screen by definite Y electrode.
The touch-screen implementation method based on plasma display panel (PDP) that the present embodiment provides, after step S15, can also comprise: according to the position of touching device contact plasma panel, respond the touch operation of this position.This touch operation can be the person's handwriting that shows that touching device slides, and can be also the order of clicking menu, and concrete application need to be determined according to the content of actual displayed.
Fig. 4 is according to the schematic diagram of the touch-screen implement device based on plasma display panel (PDP) of the embodiment of the present invention, as shown in Figure 4, the implement device 40 of the touch-screen based on plasma display panel (PDP) that the present embodiment provides comprises: electrode drive module 41, the scanning that is used for controlling the addressing electrode maintenance high level of plasma panel and make plasma panel simultaneously maintains electrode and produces successively negative level, and then gated sweep maintains electrode maintenance negative level and makes addressing electrode produce successively high level simultaneously; Or the scanning of controlling plasma panel maintains electrode and keeps negative level and make the addressing electrode of plasma panel produce successively high level, then controls addressing electrode and keeps high level and make scan electrode produce successively negative level simultaneously simultaneously; Electrode determination module 43, determine that for the moment that receives first ultraviolet signal according to the touching device of contact plasma panel the scanning that produces negative level in this moment maintains electrode, the moment that then receives second ultraviolet signal according to touching device is determined the addressing electrode that produces high level in this moment; Or, the moment that receives first ultraviolet signal according to the touching device of contact plasma panel is determined the addressing electrode that produces high level in this moment, and the moment that then receives second ultraviolet signal according to touching device determines that this moment produces low level scanning and maintains electrode; Position determination module 45, the position that draws touching device contact screen for maintain electrode and the position of the addressing electrode of determining according to the scanning of determining.
The touch-screen implement device that the present embodiment provides can also comprise operation respond module (not shown), for the position of the touching device contact screen that draws according to position determination module, responds the touch operation of this position.
Fig. 5 is the schematic diagram of realizing system according to the touch-screen based on plasma display panel (PDP) of the embodiment of the present invention, as shown in Figure 5, the touch-screen based on plasma display panel (PDP) of the present embodiment is realized system and is comprised: controller 55, the scanning that is used for controlling the addressing electrode maintenance high level of plasma panel 51 and make plasma panel 51 simultaneously maintains electrode and produces successively negative level, and then gated sweep maintains electrode maintenance negative level and makes addressing electrode produce successively high level simultaneously; Or the scanning of controlling plasma panel 51 maintains electrode and keeps negative level and make the addressing electrode of plasma panel 51 produce successively high level, then controls addressing electrode and keeps high level and make scan electrode produce successively negative level simultaneously simultaneously; The moment that receives first ultraviolet signal according to the touching device 53 of contact plasma panel 51 determines that the scanning that produces negative level in this moment maintains electrode, and the moment that then receives second ultraviolet signal according to touching device 53 is determined the addressing electrode that produces high level in this moment; Or, the moment that receives first ultraviolet signal according to the touching device 53 of contact plasma panel 51 is determined the addressing electrode that produces high level in this moment, and the moment that then receives second ultraviolet signal according to touching device 53 determines that this moment produces low level scanning and maintains electrode; Maintain according to the scanning of determining the position that the position of electrode and the addressing electrode determined draws touching device contact screen; Plasma display panel (PDP) 51, for producing ultraviolet signal under the control at controller 55; Touching device 53, screen 51 positions of clicking for contact need, the ultraviolet signal of the screen position receiving, and convert the ultraviolet signal of position to electric impulse signal.
Touching device 53 touches after PDP display screen 51, receive the scanning ultraviolet light that controller 55 drives A electrode and Y electrode to produce, after converting ultraviolet light to electric impulse signal, send back controller 55, controller 55 determines that according to the time that receives electric impulse signal this moment sends A electrode or the Y electrode of sweep signal, touches the position of the display unit of PDP display screen according to the location positioning touching device 53 of determining electrode.This position can be by the formal description of coordinate, take the lower left corner of PDP display screen as true origin, the corresponding rounded coordinate value of each display unit, PDP shows that the point of the image of screen display also can be to data that should two-dimensional coordinate, thereby can determine the accurate location of touching device click image, controller 55 operation according to the position response touching device of image.
Fig. 6 is the schematic diagram of realizing the touching device of system according to the touch-screen based on plasma display panel (PDP) of the embodiment of the present invention, and as shown in Figure 6, touching device 53 can comprise: ultraviolet light receiving trap 61, for receiving the ultraviolet signal of screen position; Photoelectric conversion device 62, connects ultraviolet light receiving trap 61, for the ultraviolet signal receiving is converted to current signal; Amplifier 63, connects photoelectric conversion device 62, for current signal is amplified; Pulse signal reshaper 64, connects amplifier 63, for the current signal after amplifying being converted to the location electric signal of electric pulse form.
The processing procedure of positioning signal in touching device 53 is: ultraviolet light receiving trap 61 receives 147nm or 174nm ultraviolet signal, and photoelectric conversion device 62 converts this UV signal to current signal.Due to ultraviolet signal itself very a little less than, after conversion, need by electric current be amplified to microampere or milliampere level process.Current signal after amplifier 63 amplifies converts an electric impulse signal in pulse signal reshaper 64.Controller 55 receives the laggard line position judgement of this electric impulse signal.
While showing image due to PDP display screen 51, also can send ultraviolet ray, the ultraviolet signal that when controller 55 can also be used for shielding PDP demonstration image, touching device receives.
The touch-screen based on plasma display panel (PDP) of the present embodiment is realized system and can also be comprised: signal transmitting apparatus (not shown), sends controller 55 to for the electric impulse signal that touching device 53 is produced.This signal transmitting apparatus can adopt wired mode also can adopt wireless mode to transmit.
The touch-screen based on plasma display panel (PDP) of the present embodiment is realized the workflow that system is concrete: in the time that touching device 53 is clicked certain display unit of PDP display screen, in the free time of field sync signal, PDP display screen 51 carries out located lateral scanning, touching device 53 receives first ultraviolet signal, after this signal is exaggerated, convert electric signal to and be exaggerated and be shaped to electric impulse signal, then be sent on controller 55 by signal transmitting apparatus, by the counter of controller, row addressing pulse signal location is counted to get to corresponding lateral attitude coordinate again.Equally, PDP display screen 51 carries out longitudinal register scan image, touching device 53 receives second ultraviolet signal, after this signal is exaggerated, convert electric signal to and be exaggerated and be shaped to electric impulse signal, then be sent on controller 55 by signal transmitting apparatus, then by the counter of controller, row addressing pulse signal location counted to get to corresponding lengthwise position coordinate.Two position coordinateses carry out corresponding with the position coordinates of image after treatment.Now, controller 55 shields the signal of touching device transmission, and PDP carries out a normal two field picture and shows.
Whole location positioning procedure is less than 16.6ms, and does not affect normal image display function in location.In addition, location can concentrate on a display pixel or carry out a viewing area, and precision is determined by the receiver hole of touching device and the pixel of PDP display screen.In the process of sliding continuously at touching device, whole position fixing process can constantly record the coordinate position at touching device 53 places, form continuous coordinate figure storage and be superimposed upon and show on image, the positional information of storage after 5 to 10s by new information substitution, thereby form mobile person's handwriting.
According to technical scheme of the present invention, the addressing electrode of controlling plasma panel keeps high level and makes the scanning of plasma panel maintain electrode simultaneously producing successively negative level, and then gated sweep maintains electrode and keeps negative level and make addressing electrode produce successively high level simultaneously; Or gated sweep maintains electrode and keeps negative level and make addressing electrode produce successively high level simultaneously, then control addressing electrode and keep high level and make scan electrode produce successively negative level simultaneously; The moment that receives first ultraviolet signal according to the touching device of contact plasma panel determines that the scanning that produces negative level in this moment maintains electrode, and the moment that then receives second ultraviolet signal according to touching device is determined the addressing electrode that produces high level in this moment; Or, the moment that receives first ultraviolet signal according to the touching device of contact plasma panel is determined the addressing electrode that produces high level in this moment, and the moment that then receives second ultraviolet signal according to touching device determines that this moment produces low level scanning and maintains electrode; The position that maintains electrode and addressing electrode according to the scanning of determining show that touching device contacts the position of plasma panel.The present invention utilizes the characteristics of luminescence of plasma panel to touch location, do not need to increase extra touch positioning device, thereby manufacture and the maintenance cost of touch-screen are saved, utilize in addition the high resolving power of plasma panel and high refreshing frequency to improve positioning precision and the response speed of touching device, locating effect is better than existing touch screen technology.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on the network that multiple calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in memory storage and be carried out by calculation element, or they are made into respectively to each integrated circuit modules, or the multiple modules in them or step are made into single integrated circuit module to be realized.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (12)
1. the touch-screen implementation method based on plasma display panel (PDP), is characterized in that, comprising:
Step S11: the addressing electrode of controlling plasma panel keeps high level and make the scanning of described plasma panel maintain electrode simultaneously producing successively negative level, then controls described scanning and maintains electrode and keep negative level and make described addressing electrode produce successively high level simultaneously; Or, the scanning of controlling plasma panel maintains electrode and keeps negative level and make the addressing electrode of described plasma panel produce successively high level simultaneously, then controls described addressing electrode and keeps high level and make described scan electrode produce successively negative level simultaneously;
Step S13: the moment that receives first ultraviolet signal according to the touching device of the described plasma panel of contact determines that the scanning that produces negative level in this moment maintains electrode, then determines according to the moment that described touching device receives second ultraviolet signal the addressing electrode that produces high level in this moment; Or, the moment that receives first ultraviolet signal according to the touching device of the described plasma panel of contact is determined the addressing electrode that produces high level in this moment, and the moment that then receives second ultraviolet signal according to described touching device determines that this moment produces low level scanning and maintains electrode;
Step S15: maintain electrode according to the described scanning of determining and show that with the position of the described addressing electrode of determining described touching device contacts the position of described plasma panel.
2. implementation method according to claim 1, is characterized in that, described step S11 carried out in the free time of display driver waveform, the ultraviolet signal that the described touching device while shielding described plasma panel demonstration image receives.
3. implementation method according to claim 1, is characterized in that, described step S13 comprises:
Obtain the ultraviolet signal that receives of touching device of the described plasma panel of contact, and the electric impulse signal that the described ultraviolet signal receiving is converted to;
Using the moment that receives described electric impulse signal as the moment that receives ultraviolet signal, determine that the scanning of this moment generation negative level maintains the addressing electrode of electrode or generation high level.
4. according to the implementation method described in any one in claims 1 to 3, it is characterized in that, after described step S15, also comprise: contact the position of described plasma panel according to determined described touching device, respond the touch operation of this position.
5. the touch-screen implement device based on plasma display panel (PDP), is characterized in that, comprising:
Electrode drive module, the scanning that is used for controlling the addressing electrode maintenance high level of plasma panel and make described plasma panel simultaneously maintains electrode and produces successively negative level, then controls described scanning and maintains electrode maintenance negative level and make described addressing electrode produce successively high level simultaneously; Or, the scanning of controlling plasma panel maintains electrode and keeps negative level and make the addressing electrode of described plasma panel produce successively high level simultaneously, then controls described addressing electrode and keeps high level and make described scan electrode produce successively negative level simultaneously;
Electrode determination module, determine that for the moment that receives first ultraviolet signal according to the touching device of the described plasma panel of contact the scanning that produces negative level in this moment maintains electrode, the moment that then receives second ultraviolet signal according to described touching device is determined the addressing electrode that produces high level in this moment; Or, the moment that receives first ultraviolet signal according to the touching device of the described plasma panel of contact is determined the addressing electrode that produces high level in this moment, and the moment that then receives second ultraviolet signal according to described touching device determines that this moment produces low level scanning and maintains electrode;
Position determination module, the position that draws described touching device contact screen for maintain electrode and the position of the described addressing electrode of determining according to the described scanning of determining.
6. implement device according to claim 5, it is characterized in that, described electrode drive module is in the free time work of display driver waveform, the described electrode determination module ultraviolet signal that also the described touching device when shielding described plasma panel and show image receives.
7. implement device according to claim 5, is characterized in that, electrode determination module also for:
Obtain the ultraviolet signal that receives of touching device of the described plasma panel of contact, and the electric impulse signal that the described ultraviolet signal receiving is converted to;
Using the moment that receives described electric impulse signal as the moment that receives ultraviolet signal, determine that the scanning of this moment generation negative level maintains the addressing electrode of electrode or generation high level.
8. according to the implement device described in any one in claim 5 to 7, it is characterized in that, also comprise: operation respond module, for the position of the described touching device contact screen that draws according to described position determination module, responds the touch operation of this position.
9. the touch based on plasma display panel (PDP) realizes a system, it is characterized in that, comprising:
Controller, for:
The addressing electrode of controlling plasma panel keeps high level and makes the scanning of described plasma panel maintain electrode simultaneously producing successively negative level, then controls described scanning and maintains electrode and keep negative level and make described addressing electrode produce successively high level simultaneously; Or, the scanning of controlling plasma panel maintains electrode and keeps negative level and make the addressing electrode of described plasma panel produce successively high level simultaneously, then controls described addressing electrode and keeps high level and make described scan electrode produce successively negative level simultaneously;
The moment that receives first ultraviolet signal according to the touching device of the described plasma panel of contact determines that the scanning that produces negative level in this moment maintains electrode, and the moment that then receives second ultraviolet signal according to described touching device is determined the addressing electrode that produces high level in this moment; Or, the moment that receives first ultraviolet signal according to the touching device of the described plasma panel of contact is determined the addressing electrode that produces high level in this moment, and the moment that then receives second ultraviolet signal according to described touching device determines that this moment produces low level scanning and maintains electrode;
Maintain according to the described scanning of determining the position that the position of electrode and the described addressing electrode determined draws described touching device contact screen;
Plasma display panel (PDP), for producing ultraviolet signal under the control of described controller;
Touching device, the position of the described plasma panel of clicking for contact need, the ultraviolet signal of the described plasma panel position receiving, and convert the ultraviolet signal of described position to electric impulse signal.
10. the system that realizes according to claim 9, is characterized in that, described touching device comprises:
Ultraviolet light receiving trap, for receiving the described ultraviolet signal of position of described plasma panel;
Photoelectric conversion device, connects described ultraviolet light receiving trap, for the described ultraviolet signal receiving is converted to current signal;
Amplifier, connects described photoelectric conversion device, for described current signal is amplified;
Pulse signal reshaper, connects described amplifier, for the current signal after amplifying being converted to the location electric signal of electric pulse form.
11. systems that realize according to claim 9, is characterized in that, described controller also when shielding described plasma panel and show image described in the ultraviolet signal that receives of touching device.
12. according to the system that realizes described in any one in claim 9 to 11, it is characterized in that, also comprises: signal transmitting apparatus, sends described controller to for the described electric impulse signal that described touching device is produced.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1904812A (en) * | 2005-07-29 | 2007-01-31 | 姚华 | Touch pen usable for display screen of common computer |
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| CN101322092A (en) * | 2005-11-30 | 2008-12-10 | 皇家飞利浦电子股份有限公司 | Light pen input system and method, particularly for use with large area non-CRT displays |
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