CN104464448A

CN104464448A - Laser pen track recording driving circuit and method, display device, driving method of display device, and laser pen track recording control system and method

Info

Publication number: CN104464448A
Application number: CN201510006251.5A
Authority: CN
Inventors: 王博; 郑喆奎; 逯家宁; 刘晴; 方婧斐
Original assignee: BOE Technology Group Co Ltd
Current assignee: BOE Technology Group Co Ltd
Priority date: 2015-01-06
Filing date: 2015-01-06
Publication date: 2015-03-25
Anticipated expiration: 2035-01-06
Also published as: CN104464448B

Abstract

The invention provides a laser pen track recording driving circuit and method, a display device, a driving method of the display device, and a laser pen track recording control system and method, and relates to the technical field of display, and recording of the drawing track of a laser pen on a display screen can be realized. The laser pen track recording driving circuit comprises a resetting module, a photosensitive module, a color-changing pixel driving module, a color-changing pixel capacitor, a display pixel driving module and a display pixel capacitor, wherein the resetting module is used for resetting the photosensitive module under the driving of reset signals and a VDD1, the photosensitive module generates sensitive current when illuminated by laser, the color-changing pixel driving module generates a color-changing voltage signal under the driving of the sensitive current, read signals, the VDD1 and a VDD2, the color-changing pixel capacitor enables color-changing pixels to be colored from transparent under the driving of the color-changing voltage signal, the display pixel driving module generates a constant-white display driving signal when the color-changing pixel driving module generates the color-changing voltage signal, and the display pixel capacitor enables the display pixels to be displayed white under the driving the constant-white display driving signal.

Description

Laser pen track record driving circuit and method, display device and driving method thereof, laser pen track record control system and method

Technical field

The present invention relates to display technique field, particularly relate to a kind of laser pen track record driving circuit and method, display device and driving method thereof, laser pen track record control system and method.

Background technology

In daily speech, as some key content need be emphasized, laser pen can be utilized on screen, to point out certain point or mark certain region, remind spectators to watch respective regions.But regrettably, laser pen the region of drawing cannot leave a trace, so when spectators also do not see the keynote message that laser pen indicates clearly, the track of laser pen disappears, and causes the inconvenience of viewing.

Summary of the invention

For overcoming above-mentioned defect of the prior art, technical matters to be solved by this invention is: provide a kind of laser pen track record driving circuit and method, display device and driving method thereof, laser pen track record control system and method, to realize the record to laser pen cropping track, spectators are facilitated to watch.

For achieving the above object, the present invention adopts following technical scheme:

A first aspect of the present invention provides a kind of laser pen track record driving circuit, for driving electrochrome pixel and display pixel, the region at a described electrochrome pixel place is corresponding with the region at display pixel place described at least one, comprise: the reseting module be connected with the first power supply voltage signal end with reset signal end, for resetting to illuminant module under the driving of reset signal and the first power supply voltage signal; The illuminant module be connected with described reseting module, described illuminant module ground connection, for producing induction current when being irradiated with a laser; With the common port of described reseting module and described illuminant module, the first power supply voltage signal end, read the electrochrome pixel driver module that signal end is connected with second source voltage signal end, described electrochrome pixel driver module ground connection, for generating a coloring voltage signal under the driving of described induction current, reading signal, the first power supply voltage signal and second source voltage signal; Electrochrome pixel electric capacity, the first end of described electrochrome pixel electric capacity is connected with described electrochrome pixel driver module, the second end ground connection, has color for making electrochrome pixel corresponding to described electrochrome pixel electric capacity under the driving of described coloring voltage signal from transparent becoming; At least one the display pixel driver module be connected with described electrochrome pixel driver module, and the equal ground connection of each described display pixel driver module, for generating a normal white display drive signals when described electrochrome pixel driver module generates described coloring voltage signal; At least one display pixel electric capacity, the first end of at least one display pixel electric capacity described is all connected with at least one display pixel driver module one_to_one corresponding described, the equal ground connection of second end of at least one display pixel electric capacity described, for make under the driving of described normal white display drive signals with from the transparent display pixel display white become in corresponding region, tool coloured electrochrome pixel region, to go out laser pen track with from the transparent coloured electrochrome pixel Overlapping display of tool that becomes.

Preferably, described reseting module comprises: the first switching tube, and the control end of described first switching tube connects described reset signal end, and input end connects described first power supply voltage signal end, and output terminal connects described illuminant module.

Preferably, described illuminant module comprises: photodiode, the plus earth of described photodiode, and negative electrode connects described reseting module.

Preferably, described electrochrome pixel driver module comprises: the coloring voltage signal be connected with described reading signal end with described reseting module and the common port of described illuminant module, described first power supply voltage signal end generates control module, described coloring voltage signal generates control module ground connection, generates control signal for generating a coloring voltage signal under the driving of described induction current, described first power supply voltage signal and described reading signal; The coloring voltage signal generation unit be connected with the first end of described electrochrome pixel electric capacity with described second source voltage signal end, be controlled by described coloring voltage signal and generate control signal, under the driving that described coloring voltage signal generates control signal and described second source voltage signal, generate described coloring voltage signal.

Preferably, described coloring voltage signal generates control module and comprises: second switch pipe, and the control end of described second switch pipe connects the common port of described reseting module and described illuminant module, and input end connects described first power supply voltage signal end; First electric capacity, the first end of described first electric capacity connects the control end of described second switch pipe, the second end ground connection; Second electric capacity, the first end of described second electric capacity connects the output terminal of described second switch pipe, the second end ground connection; 3rd switching tube, the control end of described 3rd switching tube connects described reading signal end, and input end connects the output terminal of described second switch pipe; Described coloring voltage signal generation unit comprises: the 4th switching tube, the control end of described 4th switching tube is controlled by described coloring voltage signal and generates control signal, input end connects described second source voltage signal end, output terminal connects the first end of described electrochrome pixel electric capacity, the second end ground connection of described electrochrome pixel electric capacity.

Preferably, described display pixel driver module comprises: the normal white display driver unit be connected with the first end of described display pixel electric capacity with described electrochrome pixel driver module, described normal white display driver unit ground connection, for when described electrochrome pixel driver module generates described coloring voltage signal, generate described normal white display drive signals.

Preferably, described normal white display driver unit comprises: the 5th switching tube, and the control end of described 5th switching tube connects described electrochrome pixel driver module, input end grounding, output terminal connects the first end of described display pixel electric capacity, the second end ground connection of described display pixel electric capacity.

Preferably, when described laser pen track eliminated by needs, described electrochrome pixel driver module signal end and second signal end that fades that also fades with first is connected, for first fade signal and second fade signal driving under generate one with the voltage signal that fades of described coloring voltage signal reverse voltage signal each other; Second end of described electrochrome pixel electric capacity is also connected with described electrochrome pixel driver module, recovers transparent for making electrochrome pixel corresponding to described electrochrome pixel electric capacity under the driving of the described voltage signal that fades by having color; Described display pixel driver module is also connected with data signal end with sweep signal end, for fade described in exporting at described electrochrome pixel driver module voltage signal time, under the driving of sweep signal and data-signal, generate an image display drive signals; The first end of described display pixel electric capacity is also connected with described display pixel driver module, shows color of image for making under the driving of described image display drive signals with by the display pixel had in corresponding region, electrochrome pixel region that color recovers transparent.

Preferably, described electrochrome pixel driver module comprises: to fade the voltage signal generation unit that fades that signal end is connected with second end, described first of the described electrochrome pixel electric capacity signal end and described second that fades, described voltage signal generation unit ground connection of fading, for first fade signal and second fade signal driving under generate described in fade voltage signal; Described display pixel driver module comprises: the image display driver unit be connected with described data signal end with the first end of described display pixel electric capacity, described sweep signal end, under driving in described sweep signal and described data-signal, generate described image display drive signals.

Preferably, described in the voltage signal generation unit that fades comprise: the 6th switching tube, the control end of described 6th switching tube connects described first and to fade signal end, and input end connects described second and to fade signal end; 3rd electric capacity, the first end of described 3rd electric capacity connects the output terminal of described 6th switching tube, and the second end connects the second end of described electrochrome pixel electric capacity; Described image display driver unit comprises: the 7th switching tube, and the control end of described 7th switching tube connects described sweep signal end, and input end connects described data signal end, and output terminal connects the first end of described display pixel electric capacity.

Preferably, if described electrochrome pixel driver module comprises: the coloring voltage signal be connected with described reading signal end with described illuminant module, described first power supply voltage signal end generates control module, described coloring voltage signal generates control module ground connection, generates control signal for generating a coloring voltage signal under the driving of described induction current, described first power supply voltage signal and described reading signal, the coloring voltage signal generation unit be connected with the first end of described electrochrome pixel electric capacity with described second source voltage signal end, be controlled by described coloring voltage signal and generate control signal, under the driving that described coloring voltage signal generates control signal and described second source voltage signal, generate described coloring voltage signal comprise coloring voltage signal generation control module and coloring voltage signal generation unit at described electrochrome pixel driver module, the voltage signal generation unit that fades is then connected to described coloring voltage signal and generates between control module and described coloring voltage signal generation unit, the described voltage signal generation unit that fades connects reading signal end, and described in the voltage signal generation unit that fades generate between control module with described coloring voltage signal and be connected by a diode, the anode of described diode connects described coloring voltage signal and generates control module, fade described in the negative electrode connection of described diode voltage signal generation unit.

A second aspect of the present invention provides a kind of laser pen track record driving method, be applicable to above-described laser pen track record driving circuit, for driving electrochrome pixel and display pixel, the region at a described electrochrome pixel place is corresponding with the region at display pixel place described at least one, described driving method comprises: to reseting module input reset signal and first power supply voltage signal of described driving circuit, reset to the illuminant module of described driving circuit; Described illuminant module produces sensor current signal when being irradiated with a laser; Signal, the first power supply voltage signal and second source voltage signal are read in electrochrome pixel driver module input to described driving circuit, drive described electrochrome pixel driver module to generate a coloring voltage signal; Described coloring voltage signal is applied on the electrochrome pixel electric capacity of described driving circuit, drives electrochrome pixel corresponding to described electrochrome pixel electric capacity to have color from transparent becoming; When generating described coloring voltage signal, driving and generating normal white display drive signals with the display pixel driver module of at least one display pixel of described driving circuit; Described normal white display drive signals is applied at least one display pixel electric capacity of described driving circuit, drive with from the transparent display pixel display white become in corresponding region, tool coloured electrochrome pixel region.

Preferably, be connected at the electrochrome pixel driver module of described driving circuit signal end and second signal end that fades that also fades with first, second end of described electrochrome pixel electric capacity is also connected with described electrochrome pixel driver module, described display pixel driver module is also connected with data signal end with sweep signal end, when the first end of described display pixel electric capacity is also connected with described display pixel driver module, described laser pen track record driving method also comprises: when described laser pen track eliminated by needs, to fade signal to described electrochrome pixel driver module input first signal and second that fades, drive described electrochrome pixel driver module generate one with the voltage signal that fades of described coloring voltage signal reverse voltage signal each other, the described voltage signal that fades being applied on described electrochrome pixel electric capacity, driving electrochrome pixel corresponding to described electrochrome pixel electric capacity to become transparent from having color, to described display pixel driver module input sweep signal and data-signal, drive described display pixel driver module synthetic image display, described image display drive signals is applied on described display pixel electric capacity, drives and show color of image with by the display pixel had in corresponding region, electrochrome pixel region that color recovers transparent.

A third aspect of the present invention provides a kind of display device, comprise: electrochromic panel, described electrochromic panel comprises multiple electrochrome pixel of matrix arrangement, and each described electrochrome pixel comprises the reseting module of above-described laser pen track record driving circuit, illuminant module, electrochrome pixel driver module and electrochrome pixel electric capacity; The display panel be superimposed with electrochromic panel, shows that panel comprises multiple display pixels of matrix arrangement, and each described display pixel comprises display pixel driver module and the display pixel electric capacity of above-described laser pen track record driving circuit; Wherein, region shared by a described electrochrome pixel and region shared by display pixel described at least one is corresponding.

Preferably, described electrochromic panel comprises: the first array base palte, comprises described reseting module, described illuminant module and described electrochrome pixel driver module; Be arranged at the first electrode layer on described first array base palte; The second electrode lay, described the second electrode lay and described first electrode layer form described electrochrome pixel electric capacity; Be arranged at the electrochromic layer between described first electrode layer and described the second electrode lay; Described display panel comprises: the second array base palte, comprises described display pixel driver module and described display pixel electric capacity; Be arranged at the 3rd electrode layer on described second array base palte, described 3rd electrode layer and described the second electrode lay form described display pixel electric capacity; Be arranged at the liquid crystal layer between described the second electrode lay and described 3rd electrode layer.

A fourth aspect of the present invention provides a kind of driving method of display device, be applicable to above-described display device, comprise: within the time of a frame, the multirow electrochrome pixel of described display device is resetted line by line, after Preset Time after a line electrochrome pixel is resetted, signal is read to the input of this row electrochrome pixel, the electrochrome pixel be irradiated with a laser in this row pixel is driven to have color from transparent becoming, drive the display pixel display white in region corresponding with the electrochrome pixel region be irradiated with a laser in described display device simultaneously, described Preset Time is less than the time of a frame.

Preferably, a line electrochrome pixel resets time used, described Preset Time and drive the electrochrome pixel be irradiated with a laser in this row electrochrome pixel to have from transparent becoming the time that color time sum used is a frame.

Preferably, be connected at the electrochrome pixel driver module of described driving circuit signal end and second signal end that fades that also fades with first, second end of described electrochrome pixel electric capacity is also connected with described electrochrome pixel driver module, described display pixel driver module is also connected with data signal end with sweep signal end, when the first end of described display pixel electric capacity is also connected with described display pixel driver module, the driving method of described display device also comprises: when described laser pen track eliminated by needs, input first signal and second that fades to fade signal to from the transparent coloured whole electrochrome pixel of tool that becomes, drive and recover transparent from the transparent coloured whole electrochrome pixel of tool that becomes by having color, display pixel in the region that the electrochrome pixel region simultaneously driven and be irradiated with a laser is corresponding shows color of image.

A fifth aspect of the present invention provides a kind of laser pen track record control system, comprising: above-described display device; Laser pen, described laser pen is provided with switch; Be arranged at the wireless signal transmitting device on described laser pen, described wireless signal transmitting device connects described switch, for launching track record order under the control of described switch; Be arranged at the wireless signal receiver in described display device, described wireless signal receiver is connected with the laser pen track record driving circuit of described display device, for receiving described track record order, and described track record order is sent to described laser pen track record driving circuit.

Preferably, described wireless signal transmitting device also for launching order of fading under the control of described switch; Described order of fading also for order of fading described in receiving, and is sent to described laser pen track record driving circuit by described wireless signal receiver.

A sixth aspect of the present invention provides a kind of laser pen track record control method, be applicable to above-described laser pen track record control system, described control method comprises: the wireless signal transmitting device of control system described in the switch control rule of the laser pen of described control system sends track record order; The wireless signal receiver of described control system receives and sends described track record order; After the laser pen track record driving circuit of the display device of described control system receives described track record order, drive the region variable color be irradiated with a laser, to demonstrate laser pen track.

Preferably, at described wireless signal transmitting device also for launching order of fading under the control of described switch, described wireless signal receiver is also for order of fading described in receiving, and when described order of fading being sent to described laser pen track record driving circuit, described laser pen track record control method also comprises: when described laser pen track eliminated by needs, and wireless signal transmitting device described in the switch control rule of laser pen sends order of fading; Wireless signal receiver receives and order of fading described in sending; Fade described in the laser pen track record driving circuit reception of display device after order, drive the region Recovery image color that variable color occurs, to eliminate described laser pen track.

In laser pen track record driving circuit provided by the present invention and method, display device and driving method thereof, laser pen track record control system and method, laser pen track record driving circuit comprises reseting module, illuminant module, electrochrome pixel driver module, electrochrome pixel electric capacity, display pixel driver module and display pixel electric capacity.When needs record laser pen track, reseting module is utilized to reset to illuminant module, when the electrochrome pixel at illuminant module place is irradiated with a laser, illuminant module produces induction current, this induction current drives electrochrome pixel driver module to generate a coloring voltage signal, this coloring voltage signal is applied on electrochrome pixel electric capacity and makes electrochrome pixel have color from transparent becoming, display pixel driver module generates a normal white display drive signals simultaneously, drive the display pixel display white in the region corresponding with irradiated electrochrome pixel region, thus demonstrate the cropping track of laser pen, when laser pen track eliminated by needs, electrochrome pixel driver module generates the voltage signal that fades of one and coloring voltage signals reverse, this voltage signal that fades is applied on electrochrome pixel electric capacity and makes electrochrome pixel become transparent from having color, display pixel driver module generates an image display drive signals simultaneously, drive corresponding display pixel to show color of image, thus eliminate the cropping track of laser pen.

Accompanying drawing explanation

In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.

A kind of basic block diagram of the laser pen track record driving circuit that Fig. 1 provides for the embodiment of the present invention one;

The another kind of basic block diagram of the laser pen track record driving circuit that Fig. 2 provides for the embodiment of the present invention one;

The concrete function structure chart of the laser pen track record driving circuit that Fig. 3 provides for the embodiment of the present invention one;

The concrete structure figure of the laser pen track record driving circuit that Fig. 4 provides for the embodiment of the present invention one;

The pixel structure figure of electrochromic panel in the display device that Fig. 5 provides for the embodiment of the present invention two;

The pixel structure figure of display panel in the display device that Fig. 6 provides for the embodiment of the present invention two;

The sectional structure chart of the display device that Fig. 7 provides for the embodiment of the present invention two;

Driver' s timing figure during display device recording laser that Fig. 8 provides for the embodiment of the present invention two track;

Driver' s timing figure during the display device elimination laser pen track that Fig. 9 provides for the embodiment of the present invention two.

Embodiment

For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, below in conjunction with the accompanying drawing in the embodiment of the present invention, are clearly and completely described the technical scheme in the embodiment of the present invention.Obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, other embodiments all that those of ordinary skill in the art obtain under the prerequisite of not making creative work, all belong to the scope of protection of the invention.

Embodiment one

Present embodiments provide a kind of laser pen track record driving circuit, for driving electrochrome pixel and display pixel, the region at an electrochrome pixel place is corresponding with the region at least one display pixel place, as shown in Figure 1, this driving circuit comprises: the reseting module 1 be connected with the first power supply voltage signal end (VDD1 holds) with reset signal end (Reset signal end), for resetting to illuminant module 2 under the driving of reset signal (Reset signal) and the first power supply voltage signal (VDD1); The illuminant module 2 be connected with reseting module 1, illuminant module 2 ground connection, for producing induction current when being irradiated with a laser; Hold with the common port of reseting module 1 and illuminant module 2, VDD1, read the electrochrome pixel driver module 3 that signal end (Reading signal end) is connected with second source voltage signal end (VDD2 holds), electrochrome pixel driver module ground connection 3, for induction current, read signal (Reading signal), VDD1 and second source voltage signal (VDD2) driving under generation one coloring voltage signal; Electrochrome pixel electric capacity Cf, the first end of electrochrome pixel electric capacity Cf is connected with electrochrome pixel driver module 3, the second end ground connection, has color for making electrochrome pixel corresponding to this electrochrome pixel electric capacity Cf under the driving of coloring voltage signal Cf from transparent becoming; At least one the display pixel driver module 4 be connected with electrochrome pixel driver module 3, and each display pixel driver module 4 all ground connection, for generating a normal white display drive signals when electrochrome pixel driver module 3 generates coloring voltage signal; At least one display pixel electric capacity Cst, the first end of those display pixel electric capacity Cst is all connected with at least one display pixel driver module 4 one_to_one corresponding, the equal ground connection of second end of those display pixel electric capacity Cst, for make under the driving of normal white display drive signals with from the transparent display pixel display white become in corresponding region, tool coloured electrochrome pixel region, to go out laser pen track with from the transparent coloured electrochrome pixel Overlapping display of tool that becomes.

In above-mentioned driving circuit, when inputting Reset signal to reseting module 1, reseting module 1 is opened, and VDD1 exports illuminant module 2 to by reseting module 1; Due to illuminant module 2 ground connection, therefore, it is possible to reset by the electric charge in illuminant module 2, realize the reset to illuminant module 2; When laser irradiates the electrochrome pixel at this illuminant module 2 place, illuminant module 2 responds to generation one induction current, now inputs Reading signal to variable color driver module 3, drives variable color driver module 3 to generate coloring voltage signal; This coloring voltage signal is applied on electrochrome pixel electric capacity Cf, make coating-forming voltage between the two-plate of electrochrome pixel electric capacity Cf poor, thus the electrochromic material between two-plate has color from transparent becoming; Meanwhile, display pixel driver module 4 is when finding that variable color driver module 3 generates coloring voltage signal, and display pixel driver module 4 produces normal white display drive signals, drives display pixel electric capacity Cst display white.To become tool coloured electrochrome pixel region corresponding with the display pixel region of display white from transparent, thus the color addition of the two, make the region be irradiated with a laser that variable color occur, the track of laser pen cropping is displayed.

It should be noted that, because laser irradiates the size of spot diameter formed on a display screen much larger than pixel in display screen, what therefore the size of electrochrome pixel can be arranged is larger, without the need to being arranged on same magnitude with the size of display pixel, thus the region at an electrochrome pixel place is corresponding with the regional location at multiple display pixel place, area is identical or close, in circuit design, preferably can be as shown in Figure 2, make an electrochrome pixel driver module 3 connect multiple display pixel driver module 5, the object realize simplifying circuit structure, reducing power consumption simultaneously.

Further, when laser pen track eliminated by needs, electrochrome pixel driver module 3 also can be connected with first signal end (Fade1 signal end) and second signal end (Fade2 signal end) that fades that fades, for first fade signal (Fade1 signal) and second fade signal (Fade2 signal) driving under the voltage signal that fades of generation one and coloring voltage signal reverse voltage signal each other; Second end of electrochrome pixel electric capacity Cf is also connected with electrochrome pixel driver module 3, recovers transparent for making electrochrome pixel corresponding to electrochrome pixel electric capacity Cf under the driving of the voltage signal that fades by having color; Display pixel driver module 4 is also connected with data signal end (Data signal end) with sweep signal end (Scan signal end), when fading voltage signal for exporting at electrochrome pixel driver module 3, generation one image display drive signals under the driving of sweep signal (Scan signal) and data-signal (Data signal); The first end of display pixel electric capacity Cst is also connected with display pixel driver module 4, shows color of image for making under the driving of image display drive signals with by the display pixel had in corresponding region, electrochrome pixel region that color recovers transparent.

In technique scheme, as laser pen track need be eliminated, then by applying Fade1 signal and Fade2 signal to electrochrome pixel driver module 3, drive its generate one with the voltage signal that fades of coloring voltage signal reverse voltage signal each other, thus the voltage signal that this faded is applied on electrochrome pixel electric capacity Cf, electrochrome pixel electric capacity Cf can be made to fade and to recover transparent, meanwhile, by applying Scan signal and Data signal to display pixel driver module 4, display pixel driver module 4 is driven to generate an image display drive signals, this image display drive signals is applied on display pixel, display pixel can be made to change into the state of display correspondence image color from normal white display state, thus the color addition of the two, the laser pen track originally shown is made to become normal graphic color, laser pen track disappears.

As a specific embodiments of the driving circuit that the present embodiment provides, as shown in Figure 3, the reseting module 1 in circuit can comprise: the first switch transistor T 1, and the control end of this first switch transistor T 1 connects Reset signal end, input end connects VDD1 end, and output terminal connects illuminant module 2.

Illuminant module 2 can comprise: photodiode D, the plus earth of this photodiode D, and negative electrode connects reseting module 1, and negative electrode specifically can connect the output terminal of the first switch transistor T 1.

Electrochrome pixel driver module 3 can comprise: hold the coloring voltage signal be connected with Reading signal end to generate control module 31 with the common port (specifically can be the output terminal of the first switch transistor T 1 and the common port of the negative electrode of photodiode D) of reseting module 1 and illuminant module 2, VDD1, this coloring voltage signal generates control module 31 ground connection, for produces at illuminant module 2 induction current, VDD1 and Reading signal driving under generate a coloring voltage signal generation control signal; Hold with VDD2 the coloring voltage signal generation unit 32 be connected with the first end of electrochrome pixel electric capacity Cf, be controlled by coloring voltage signal and generate control signal, under the driving that coloring voltage signal generates control signal and VDD2, generate coloring voltage signal.

Display pixel driver module 4 can comprise: the normal white display driver unit 41 be connected with the first end of display pixel electric capacity Cs t with electrochrome pixel driver module 3 (the coloring voltage signal that specifically can be electrochrome pixel driver module 3 generates control module 31), this normal white display driver unit 41 ground connection, for when electrochrome pixel driver module 3 generates coloring voltage signal, generate normal white display drive signals.

Further, for the display screen can eliminating laser trace, electrochrome pixel driver module 3 can comprise: the voltage signal generation unit 33 that fades be connected with Fade2 signal end with second end of electrochrome pixel electric capacity Cf, Fade1 signal end, this voltage signal generation unit 33 ground connection of fading, for generating the voltage signal that fades under the driving of Fade1 signal and Fade2 signal; Display pixel driver module 4 can comprise: the image display driver unit 42 be connected with described data signal end with Data signal end with the first end of display pixel electric capacity Cst, Scan signal end, for synthetic image display drive signals under driving at Scan signal and Data signal.

In the present embodiment, the coloring voltage signal that the voltage signal generation unit 33 that fades can be connected to electrochrome pixel driver module 3 generates between control module 31 and coloring voltage signal generation unit 32, this voltage signal generation unit 33 that fades connects Reading signal end, with when Reading signal inputs, connect coloring voltage signal as wire and generate control module 31 and coloring voltage signal generation unit 32; And the voltage signal generation unit 33 that fades is generated between control module 31 with coloring voltage signal and is connected by a diode D0, the anode of diode D0 connects coloring voltage signal and generates control module 31, negative electrode connects the voltage signal generation unit 33 that fades, with when Fade1 signal and Fade2 signal input, prevent electric current from flowing into coloring voltage signal and generate in control module 31.

More specifically, present embodiments provide the specific implementation of above-mentioned each functional unit, as shown in Figure 4, coloring voltage signal generates control module 31 and can comprise: second switch pipe T2, the control end of second switch pipe T2 connects the common port (specifically can be the common port of the output terminal of the first switch transistor T 1 and the negative electrode of photodiode) of reseting module 1 and illuminant module, and input end connects VDD1 end; The first end of the first electric capacity Cs1, the first electric capacity Cs1 connects the control end of second switch pipe T2, the second end ground connection; The first end of the second electric capacity Cs2, the second electric capacity Cs2 connects the output terminal of second switch pipe T2, the second end ground connection; The control end of the 3rd switch transistor T 3, three switch transistor T 3 connects Reading signal end, and input end connects the output terminal of second switch pipe T2.

Coloring voltage signal generation unit 32 comprises: the 4th switch transistor T 4, the control end of the 4th switch transistor T 4 is controlled by coloring voltage signal and generates control signal, input end connects VDD2 end, and output terminal connects the first end of electrochrome pixel electric capacity Cf, the second end ground connection of electrochrome pixel electric capacity Cf.

Normal white display driver unit 41 comprises: the 5th switch transistor T 5, the control end of the 5th switch transistor T 5 connects electrochrome pixel driver module 3 (specifically can be the output terminal of the 3rd switching tube or the control end of the 4th switch transistor T 4), input end grounding, output terminal connects the first end of display pixel electric capacity Cst, the second end ground connection of display pixel electric capacity Cst.

For the circuit that can realize laser pen track elimination function, the voltage signal generation unit 33 that fades can comprise: the control end of the 6th switch transistor T the 6, six switch transistor T 6 connects Fade1 signal end, and input end connects Fade2 signal end; The first end of the 3rd electric capacity Cs3, the 3rd electric capacity Cs3 connects the output terminal of the 6th switch transistor T 6, and the second end connects second end of electrochrome pixel electric capacity Cf; Image display driver unit 42 comprises: the control end of the 7th switch transistor T the 7, seven switch transistor T 7 connects Scan signal end, and input end connects Data signal end, and output terminal connects the first end of display pixel electric capacity Cst.

When needs record laser pen track, Reset high level signal is inputted to the first switch transistor T 1, first switch transistor T 1 is opened, VDD1 transfers to the negative electrode of photodiode D by the first switch transistor T 1, due to the plus earth of photodiode D, therefore the PN junction reversion of photodiode D, its internal charge resets, and achieves the reset to photodiode D; When there being laser to irradiate photodiode D, its induced inside produces induction current, the pull-down current of PN junction increases, thus the electromotive force of the first electric capacity Cs1 first end is dragged down, when electromotive force is low to moderate the cut-in voltage of second switch pipe T2, second switch pipe T2 opens, thus VDD1 high level is charged into the second electric capacity Cs2; Control end to the 3rd switch transistor T 3 applies Reading high-level control signal, and the 3rd switch transistor T 3 is opened, thus the coloring voltage signal that the output terminal of the 3rd switch transistor T 3 exports high level generates control signal; Meanwhile, 6th switch transistor T 6 is opened, the coloring voltage signal of the high level the 3rd switch transistor T 3 exported as wire generates the control end that control signal transfers to the 4th switch transistor T 4, thus the 4th switch transistor T 4 is opened, the VDD2 of high level is applied on first pole plate (i.e. first end) of variable color electric capacity Cf by the 4th switch transistor T 4; Due to the second pole plate (i.e. the second end) ground connection of variable color electric capacity Cf, therefore between two-plate, coating-forming voltage is poor, and the electrochromic material between two-plate is become from Transparent color during not making alive and has color under the effect of this voltage difference; Meanwhile, the 5th switch transistor T 5 is opened under the coloring voltage signal of high level generates the driving of control signal, and output terminal is electronegative potential, thus there is not voltage difference between the two-plate of display pixel electric capacity Cst, and this display pixel enters normal white display mode.Color after the electrochrome pixel of variable color and the display pixel Overlapping display electrochrome pixel variable color of white, thus the track of laser pen cropping is on a display screen revealed.

When laser pen track eliminated by needs, control end to the 6th switch transistor T 6 applies the Fade1 signal of high level, control the 6th switch transistor T 6 to open, simultaneously to the Fade2 signal of the input end applying high level of the 6th switch transistor T 6, 6th switch transistor T 6 exports high level, be filled with in the 3rd electric capacity Cs3, 4th switch transistor T 4 is opened, this seasonal VDD2 becomes low level, first pole plate of variable color electric capacity Cf is made to be low level, Fade1 signal and Fade2 signal become low level afterwards, the current potential of second pole plate of the 3rd electric capacity Cs3 is driven high, 4th switch transistor T 4 is closed, first pole plate of variable color electric capacity Cf still maintains low level, thus a reverse voltage is applied with on the electrochromic material of variable color electric capacity Cf two-plate, electrochromic material recovers transparent by having color, 5th switch transistor T 5 is closed simultaneously, under the driving of Scan signal and Data signal, the 7th switching tube exports the image display drive signals of high level, between the two-plate of display pixel electric capacity Cst, coating-forming voltage is poor, thus display pixel carries out the display of normal color of image, after display pixel superposes with electrochrome pixel, laser pen track disappears.

It should be noted that, in the present embodiment, the first switch transistor T 1, the 3rd switch transistor T 3, the 4th switch transistor T 4, the 5th switch transistor T 5, the 6th switch transistor T 6 and the 7th switch transistor T 7 preferably can be the switching tube that high level is opened, and second switch pipe T2 preferably can be the switching tube that low level is opened.

The present embodiment additionally provides a kind of laser pen track record driving method, be applicable to the laser pen track record driving circuit described in the present embodiment, this driving method comprises the following steps: input Reset signal and VDD1 to reseting module 1, resets to illuminant module 2; Illuminant module 2 produces sensor current signal when being irradiated with a laser; Input Reading signal, VDD1 and second source voltage signal to electrochrome pixel driver module 3, drive electrochrome pixel driver module 3 to generate a coloring voltage signal; Coloring voltage signal is applied on electrochrome pixel electric capacity Cf, drives electrochrome pixel corresponding to electrochrome pixel electric capacity Cf to have color from transparent becoming; When generating coloring voltage signal, at least one display pixel driver module 4 is driven to generate normal white display drive signals; Normal white display drive signals is applied on display pixel electric capacity Cst, drive with from the transparent display pixel display white become in corresponding region, tool coloured electrochrome pixel region, thus achieve the display to laser pen cropping track on a display screen.

When laser pen track eliminated by needs, above-mentioned driving method also can comprise: input Fade1 signal and Fade2 signal to electrochrome pixel driver module 3, drive electrochrome pixel driver module 3 generate one with the voltage signal that fades of coloring voltage signal reverse voltage signal each other; The voltage signal that will fade is applied on electrochrome pixel electric capacity Cf, drives electrochrome pixel to become transparent from having color; Input Scan signal and Data signal to display pixel driver module 4, drive display pixel driver module 4 synthetic image display; Image display drive signals is applied on display pixel electric capacity Cst, drives display pixel display color of image, thus achieve the elimination of laser pen track.

Embodiment two

Based on embodiment one, present embodiments provide a kind of display device, as shown in Figure 4, comprise: electrochromic panel, as shown in Figure 5, this electrochromic panel comprises multiple electrochrome pixel 5 of matrix arrangement, and each electrochrome pixel 5 comprises the reseting module 1 of the laser pen track record driving circuit described in embodiment one, illuminant module 2, electrochrome pixel driver module 3 and electrochrome pixel electric capacity Cf; The display panel be superimposed with electrochromic panel, as shown in Figure 6, this display panel comprises multiple display pixels 6 of matrix arrangement, and each display pixel 6 comprises display pixel driver module 4 and the display pixel electric capacity Cst of the laser pen track record driving circuit described in embodiment one.Wherein, the region at electrochrome pixel 5 place and the region at least one display pixel place is corresponding.

In the present embodiment, use by electrochromic panel is superposed with display panel, and at the two inner corresponding laser pen track record driving circuit arranging embodiment and provide, make display device when the laser sent by laser pen irradiates, can there is variable color in irradiated area, achieve the record to laser pen track.

It should be noted that, a preferably corresponding multiple display pixel 6 of electrochrome pixel 5 in the present embodiment, accordingly, in internal circuit, the electrochrome pixel driver module 3 of an electrochrome pixel 5 is connected with the display pixel driver module 4 of the multiple display pixels 6 corresponding to himself respectively, thus under the prerequisite realizing laser pen track recording function, simplify the circuit structure of device inside, reduce device power consumption.

It should be noted that, in order to electrochrome pixel apply required for signal, can arrange many Reset signal wires (Reset1 ~ Reset n) in the row direction in electrochromic panel, every bar Reset signal wire is connected with a line electrochrome pixel, in order to reset to this row electrochrome pixel; Many row are in the row direction set and select line (Select1 ~ Select n), to select to open certain a line electrochrome pixel; Many the Reading signal wires along column direction (Reading1 ~ Reading m) are set, every bar Reading signal wire is connected with a row electrochrome pixel, after opening certain a line electrochrome pixel in Select signal-line choosing, signal on this row electrochrome pixel is read respectively, makes the electrochrome pixel variable color be irradiated with a laser in this row electrochrome pixel.

In order to apply the signal of image display to display pixel, Scan1 ~ Scan n many Scan signal wires and Data1 ~ Data m many Data signal wires are set in display panel, set-up mode can adopt the set-up mode of Scan signal wire and Data signal wire in conventional display panels, does not repeat them here.

Concrete, the present embodiment provides a kind of structure of display device, as shown in Figure 7, the electrochromic panel of display device comprises: the first array base palte 7, comprise reseting module, illuminant module and electrochrome pixel driver module, further array base palte is provided with Reset signal wire, Select signal wire and Reading signal wire; Be arranged at the first electrode layer 8 on the first array base palte 7; The second electrode lay 11, the second electrode lay 11 and the first electrode layer 8 form electrochrome pixel electric capacity; Be arranged at the electrochromic layer 9 between the first electrode layer 8 and the second electrode lay 11, electrochromic layer is formed by electrochromic material.

The display panel of display device comprises: the second array base palte 14, comprises display pixel driver module and display pixel electric capacity; The 3rd electrode layer the 13, three electrode layer 13 be arranged on the second array base palte 14 forms display pixel electric capacity with the second electrode lay 11; Be arranged at the liquid crystal layer 12 between the second electrode lay 11 and the 3rd electrode layer 13.

Multiple sept is provided with, for keeping the box of electrochromic panel and display panel thick between first electrode layer 8 and the second electrode lay 11, between the second electrode lay 11 and the 3rd electrode layer 13; In addition, sept also can be used for being electrically connected each element in electrochromic panel and display panel, such as by the electrochrome pixel driver module in electrochrome pixel and the electrical connection of the driver module in display pixel, for another example the ground wire on the second array base palte 14 is connected in the sets of elements of ground connection by needing in circuit, etc.

The electrochromic material forming electrochromic layer 9 is different, the color changed after its making alive is different, electrochromic material such as can be tungstic acid, polythiophene class and derivant thereof, purple sieve essence class, tetrathiafulvalene, metallo phthalocyanine etc., the material that after preferably can selecting variable color in the present embodiment, color is easily differentiated, as presented red electrochromic material after variable color.

Form above-mentioned display device and can adopt following operation: make the first array base palte 7, making first array base palte 7 is formed the first electrode layer 8, first electrode layer 8 forms electrochromic layer 9, electrochromic layer is formed the second electrode lay 11, patterning processes is carried out to the first electrode layer 8, electrochromic layer 9 and the second electrode lay 11, the second electrode lay 11 is formed liquid crystal layer 12; Make the second array base palte 14, on the second array base palte 14 formed the 3rd electrode layer 13, the first array base palte 7 and the second array base palte 14 are carried out team with, complete the making of display device.

It should be noted that, the present embodiment is only described for display device of said structure and preparation method thereof, and in other embodiments of the invention, display device also can be other structure.Such as, electrochromic panel can comprise: the first array base palte, is positioned at the first electrode layer on the first array base palte, the 3rd substrate, is positioned at the 3rd electrode layer on the 3rd substrate, the electrochromic layer between the first electrode layer and the 3rd electrode layer; Display panel can comprise: the second array base palte, is positioned at the second electrode lay on the second array base palte, tetrabasal, is positioned at the 4th electrode layer on tetrabasal, the liquid crystal layer between the second electrode lay and the 4th electrode layer; Aforementioned electrochromic panel and display panel are superimposed; Further, the joint of electrochromic panel and display panel can be made to share same substrate.Or display panel can not adopt liquid crystalline type, OLED (Organic Light-Emi tting Diode, Organic Light Emitting Diode) type can be selected, etc.

The present embodiment additionally provides a kind of driving method of display device, this driving method is applicable to the display device described in the present embodiment, as shown in Figure 8, comprise: within the time of a frame T, multirow electrochrome pixel is resetted line by line, namely Reset signal (Reset1 ~ Reset n) is applied line by line, after preset time t 2 (t2 < T) after a line electrochrome pixel is resetted, to this row electrochrome pixel input Reading signal (Reading1 ~ Reading n), the electrochrome pixel be irradiated with a laser in this row pixel is driven to have color from transparent becoming, display pixel display white in the region that the electrochrome pixel region simultaneously driven and be irradiated with a laser is corresponding, realize the record to laser pen track.

It should be noted that, why in the driving just carrying out variable color after preset time t 2 that resets, because after resetting to display device illuminant module, illuminant module carries out photosensitive, induced charge accumulates in the first electric capacity Cs1 needs the regular hour, if apply Reading signal after the reset immediately to carry out variable color driving, then possibly cannot obtain this electrochrome pixel and whether be subject to sharp light-struck accurate result, causing cannot accurate recording laser pen track, the visible accuracy being conducive to improving laser pen track record in the driving of carrying out variable color after preset time t 2 again of resetting, a most preferred scheme: a line electrochrome pixel reset time t1 used can be made, preset time t 2 and drive the electrochrome pixel be irradiated with a laser in this row electrochrome pixel to have from transparent becoming the time T that color time t3 sum used is a frame.

Further, as shown in Figure 9, when laser pen track eliminated by needs, Fade1 signal and Fade2 signal is inputted to from the transparent coloured whole electrochrome pixel of tool that becomes, drive and recover transparent from the transparent coloured whole electrochrome pixel of tool that becomes by having color, display pixel in the region that the electrochrome pixel region simultaneously driven and be irradiated with a laser is corresponding shows color of image, thus the track of laser pen is eliminated.In the present embodiment, the time T0 eliminating laser pen track used preferably can be 2s, expends time in extremely short.It should be noted that, while input Fade1 signal and Fade2 signal, VDD2 need become low level from high level, to drag down the current potential of electrochrome pixel electric capacity first pole plate.

Embodiment three

Present embodiments provide a kind of laser pen track record control system, comprising: the display device described in embodiment two; Laser pen, this laser pen is provided with switch; Be arranged at the wireless signal transmitting device on laser pen, this wireless signal transmitting device connecting valve, for launching track record order under the control of switch; Be arranged at the wireless signal receiver in display device, this wireless signal receiver is connected with laser pen track record driving circuit, for receiving locus record order, and track record order is sent to laser pen track record driving circuit.

In above-mentioned control system, when needs recording laser track, press the switch on laser pen, switch control rule wireless signal transmitting device sends track record order, wireless signal receiver in display device receives and sends this track record order, after the laser pen track record driving circuit of display device receives this track record order, drive the region variable color be irradiated with a laser, thus demonstrate laser pen track.

Need to further illustrate, track record order act as controls Reset signal and the input of Reading signal, the illuminant module unlatching of laser pen track record driving circuit, and then whole circuit starts track record work.

In the present embodiment, wireless signal transmitting device is also used in transmitting under the control of switch and fades order; Accordingly, wireless signal receiver also can be used for receiving this order of fading, and order of this being faded sends to laser pen track record driving circuit.

When laser pen track eliminated by needs, press the switch of laser pen, switch control rule wireless signal transmitting device sends order of fading, wireless signal receiver receives and sends this order of fading, after the laser pen track record driving circuit of display device receives this order of fading, drive the region Recovery image color that variable color occurs, thus eliminate laser pen track.

Need to further illustrate, order of fading act as controls Fade1 signal and the input of Fade2 signal, the related function module unlatching of fading of the electrochrome pixel driver module of laser pen track record driving circuit, and then whole circuit starts track elimination work.

The foregoing is only the specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses, the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.

Claims

1. a laser pen track record driving circuit, for driving electrochrome pixel and display pixel, the region at a described electrochrome pixel place is corresponding with the region at display pixel place described at least one, it is characterized in that, comprising:

The reseting module be connected with the first power supply voltage signal end with reset signal end, for resetting to illuminant module under the driving of reset signal and the first power supply voltage signal;

The illuminant module be connected with described reseting module, described illuminant module ground connection, for producing induction current when being irradiated with a laser;

With the common port of described reseting module and described illuminant module, the first power supply voltage signal end, read the electrochrome pixel driver module that signal end is connected with second source voltage signal end, described electrochrome pixel driver module ground connection, for generating a coloring voltage signal under the driving of described induction current, reading signal, the first power supply voltage signal and second source voltage signal;

Electrochrome pixel electric capacity, the first end of described electrochrome pixel electric capacity is connected with described electrochrome pixel driver module, the second end ground connection, has color for making electrochrome pixel corresponding to described electrochrome pixel electric capacity under the driving of described coloring voltage signal from transparent becoming;

At least one the display pixel driver module be connected with described electrochrome pixel driver module, and the equal ground connection of each described display pixel driver module, for generating a normal white display drive signals when described electrochrome pixel driver module generates described coloring voltage signal;

At least one display pixel electric capacity, the first end of at least one display pixel electric capacity described is all connected with at least one display pixel driver module one_to_one corresponding described, the equal ground connection of second end of at least one display pixel electric capacity described, for make under the driving of described normal white display drive signals with from the transparent display pixel display white become in corresponding region, tool coloured electrochrome pixel region, to go out laser pen track with from the transparent coloured electrochrome pixel Overlapping display of tool that becomes.

2. laser pen track record driving circuit according to claim 1, it is characterized in that, described reseting module comprises: the first switching tube, the control end of described first switching tube connects described reset signal end, input end connects described first power supply voltage signal end, and output terminal connects described illuminant module.

3. laser pen track record driving circuit according to claim 1, it is characterized in that, described illuminant module comprises: photodiode, the plus earth of described photodiode, and negative electrode connects described reseting module.

4. laser pen track record driving circuit according to claim 1, is characterized in that, described electrochrome pixel driver module comprises:

The coloring voltage signal be connected with described reading signal end with described reseting module and the common port of described illuminant module, described first power supply voltage signal end generates control module, described coloring voltage signal generates control module ground connection, generates control signal for generating a coloring voltage signal under the driving of described induction current, described first power supply voltage signal and described reading signal;

The coloring voltage signal generation unit be connected with the first end of described electrochrome pixel electric capacity with described second source voltage signal end, be controlled by described coloring voltage signal and generate control signal, under the driving that described coloring voltage signal generates control signal and described second source voltage signal, generate described coloring voltage signal.

5. laser pen track record driving circuit according to claim 4, is characterized in that,

Described coloring voltage signal generates control module and comprises: second switch pipe, and the control end of described second switch pipe connects the common port of described reseting module and described illuminant module, and input end connects described first power supply voltage signal end; First electric capacity, the first end of described first electric capacity connects the control end of described second switch pipe, the second end ground connection; Second electric capacity, the first end of described second electric capacity connects the output terminal of described second switch pipe, the second end ground connection; 3rd switching tube, the control end of described 3rd switching tube connects described reading signal end, and input end connects the output terminal of described second switch pipe;

Described coloring voltage signal generation unit comprises: the 4th switching tube, the control end of described 4th switching tube is controlled by described coloring voltage signal and generates control signal, input end connects described second source voltage signal end, output terminal connects the first end of described electrochrome pixel electric capacity, the second end ground connection of described electrochrome pixel electric capacity.

6. laser pen track record driving circuit according to claim 1, is characterized in that, described display pixel driver module comprises:

The normal white display driver unit be connected with the first end of described display pixel electric capacity with described electrochrome pixel driver module, described normal white display driver unit ground connection, for when described electrochrome pixel driver module generates described coloring voltage signal, generate described normal white display drive signals.

7. laser pen track record driving circuit according to claim 6, it is characterized in that, described normal white display driver unit comprises: the 5th switching tube, the control end of described 5th switching tube connects described electrochrome pixel driver module, input end grounding, output terminal connects the first end of described display pixel electric capacity, the second end ground connection of described display pixel electric capacity.

8. the laser pen track record driving circuit according to any one of claim 1 ~ 7, is characterized in that, when described laser pen track eliminated by needs,

Described electrochrome pixel driver module signal end and second signal end that fades that also fades with first is connected, for first fade signal and second fade signal driving under generate one with the voltage signal that fades of described coloring voltage signal reverse voltage signal each other;

Second end of described electrochrome pixel electric capacity is also connected with described electrochrome pixel driver module, recovers transparent for making electrochrome pixel corresponding to described electrochrome pixel electric capacity under the driving of the described voltage signal that fades by having color;

Described display pixel driver module is also connected with data signal end with sweep signal end, for fade described in exporting at described electrochrome pixel driver module voltage signal time, under the driving of sweep signal and data-signal, generate an image display drive signals;

The first end of described display pixel electric capacity is also connected with described display pixel driver module, shows color of image for making under the driving of described image display drive signals with by the display pixel had in corresponding region, electrochrome pixel region that color recovers transparent.

9. laser pen track record driving circuit according to claim 8, is characterized in that,

Described electrochrome pixel driver module comprises: to fade the voltage signal generation unit that fades that signal end is connected with second end, described first of the described electrochrome pixel electric capacity signal end and described second that fades, described voltage signal generation unit ground connection of fading, for first fade signal and second fade signal driving under generate described in fade voltage signal;

Described display pixel driver module comprises: the image display driver unit be connected with described data signal end with the first end of described display pixel electric capacity, described sweep signal end, under driving in described sweep signal and described data-signal, generate described image display drive signals.

10. laser pen track record driving circuit according to claim 9, is characterized in that,

The described voltage signal generation unit that fades comprises: the 6th switching tube, and the control end of described 6th switching tube connects described first and to fade signal end, and input end connects described second and to fade signal end; 3rd electric capacity, the first end of described 3rd electric capacity connects the output terminal of described 6th switching tube, and the second end connects the second end of described electrochrome pixel electric capacity;

Described image display driver unit comprises: the 7th switching tube, and the control end of described 7th switching tube connects described sweep signal end, and input end connects described data signal end, and output terminal connects the first end of described display pixel electric capacity.

11. laser pen track record driving circuits according to claim 8 or claim 9, it is characterized in that, if described electrochrome pixel driver module comprises: the coloring voltage signal be connected with described reading signal end with described illuminant module, described first power supply voltage signal end generates control module, described coloring voltage signal generates control module ground connection, generates control signal for generating a coloring voltage signal under the driving of described induction current, described first power supply voltage signal and described reading signal, the coloring voltage signal generation unit be connected with the first end of described electrochrome pixel electric capacity with described second source voltage signal end, be controlled by described coloring voltage signal and generate control signal, under the driving that described coloring voltage signal generates control signal and described second source voltage signal, generate described coloring voltage signal comprise coloring voltage signal generation control module and coloring voltage signal generation unit at described electrochrome pixel driver module, the voltage signal generation unit that fades is then connected to described coloring voltage signal and generates between control module and described coloring voltage signal generation unit, the described voltage signal generation unit that fades connects reading signal end, and described in the voltage signal generation unit that fades generate between control module with described coloring voltage signal and be connected by a diode, the anode of described diode connects described coloring voltage signal and generates control module, fade described in the negative electrode connection of described diode voltage signal generation unit.

12. 1 kinds of laser pen track record driving methods, it is characterized in that, be applicable to the laser pen track record driving circuit described in any one of claim 1 ~ 11, for driving electrochrome pixel and display pixel, the region at a described electrochrome pixel place is corresponding with the region at display pixel place described at least one, and described driving method comprises:

To reseting module input reset signal and first power supply voltage signal of described driving circuit, the illuminant module of described driving circuit is resetted;

Described illuminant module produces sensor current signal when being irradiated with a laser;

Signal, the first power supply voltage signal and second source voltage signal are read in electrochrome pixel driver module input to described driving circuit, drive described electrochrome pixel driver module to generate a coloring voltage signal;

Described coloring voltage signal is applied on the electrochrome pixel electric capacity of described driving circuit, drives electrochrome pixel corresponding to described electrochrome pixel electric capacity to have color from transparent becoming;

When generating described coloring voltage signal, driving and generating normal white display drive signals with at least one display pixel driver module of described driving circuit;

Described normal white display drive signals is applied at least one display pixel electric capacity of described driving circuit, drive with from the transparent display pixel display white become in corresponding region, tool coloured electrochrome pixel region.

13. laser pen track record driving methods according to claim 12, it is characterized in that, be connected at the electrochrome pixel driver module of described driving circuit signal end and second signal end that fades that also fades with first, second end of described electrochrome pixel electric capacity is also connected with described electrochrome pixel driver module, described display pixel driver module is also connected with data signal end with sweep signal end, when the first end of described display pixel electric capacity is also connected with described display pixel driver module, described driving method also comprises: when described laser pen track eliminated by needs

To fade signal to described electrochrome pixel driver module input first signal and second that fades, drive described electrochrome pixel driver module generate one with the voltage signal that fades of described coloring voltage signal reverse voltage signal each other;

The described voltage signal that fades being applied on described electrochrome pixel electric capacity, driving electrochrome pixel corresponding to described electrochrome pixel electric capacity to become transparent from having color;

To described display pixel driver module input sweep signal and data-signal, drive described display pixel driver module synthetic image display;

Described image display drive signals is applied on described display pixel electric capacity, drives and show color of image with by the display pixel had in corresponding region, electrochrome pixel region that color recovers transparent.

14. 1 kinds of display device, is characterized in that, comprising:

Electrochromic panel, described electrochromic panel comprises multiple electrochrome pixel of matrix arrangement, and each described electrochrome pixel comprises the reseting module of the laser pen track record driving circuit as described in any one of claim 1 ~ 11, illuminant module, electrochrome pixel driver module and electrochrome pixel electric capacity;

The display panel be superimposed with described electrochromic panel, described display panel comprises multiple display pixels of matrix arrangement, and each described display pixel comprises display pixel driver module and the display pixel electric capacity of the laser pen track record driving circuit as described in any one of claim 1 ~ 11;

Wherein, the region at a described electrochrome pixel place is corresponding with the region at display pixel place described at least one.

15. display device according to claim 14, is characterized in that, described electrochromic panel comprises: the first array base palte, comprise described reseting module, described illuminant module and described electrochrome pixel driver module; Be arranged at the first electrode layer on described first array base palte; The second electrode lay, described the second electrode lay and described first electrode layer form described electrochrome pixel electric capacity; Be arranged at the electrochromic layer between described first electrode layer and described the second electrode lay;

Described display panel comprises: the second array base palte, comprises described display pixel driver module and described display pixel electric capacity; Be arranged at the 3rd electrode layer on described second array base palte, described 3rd electrode layer and described the second electrode lay form described display pixel electric capacity; Be arranged at the liquid crystal layer between described the second electrode lay and described 3rd electrode layer.

The driving method of 16. 1 kinds of display device, it is characterized in that, be applicable to the display device described in claims 14 or 15, comprise: within the time of a frame, the multirow electrochrome pixel of described display device is resetted line by line, after Preset Time after a line electrochrome pixel is resetted, signal is read to the input of this row electrochrome pixel, the electrochrome pixel be irradiated with a laser in this row pixel is driven to have color from transparent becoming, drive the display pixel display white in region corresponding with the electrochrome pixel region be irradiated with a laser in described display device simultaneously, described Preset Time is less than the time of a frame.

The driving method of 17. display device according to claim 16, it is characterized in that, a line electrochrome pixel resets time used, described Preset Time and drive the electrochrome pixel be irradiated with a laser in this row electrochrome pixel to have from transparent becoming the time that color time sum used is a frame.

The driving method of 18. display device according to claim 16 or 17, it is characterized in that, be connected at the electrochrome pixel driver module of described driving circuit signal end and second signal end that fades that also fades with first, second end of described electrochrome pixel electric capacity is also connected with described electrochrome pixel driver module, described display pixel driver module is also connected with data signal end with sweep signal end, when the first end of described display pixel electric capacity is also connected with described display pixel driver module, described driving method also comprises: when described laser pen track eliminated by needs, input first signal and second that fades to fade signal to from the transparent coloured whole electrochrome pixel of tool that becomes, drive and recover transparent from the transparent coloured whole electrochrome pixel of tool that becomes by having color, display pixel in the region that the electrochrome pixel region simultaneously driven and be irradiated with a laser is corresponding shows color of image.

19. 1 kinds of laser pen track record control system, is characterized in that, comprising:

Display device described in claims 14 or 15;

Laser pen, described laser pen is provided with switch;

Be arranged at the wireless signal transmitting device on described laser pen, described wireless signal transmitting device connects described switch, for launching track record order under the control of described switch;

Be arranged at the wireless signal receiver in described display device, described wireless signal receiver is connected with the laser pen track record driving circuit of described display device, for receiving described track record order, and described track record order is sent to described laser pen track record driving circuit.

20. laser pen track record control system according to claim 19, is characterized in that, described wireless signal transmitting device also for launching order of fading under the control of described switch;

Described order of fading also for order of fading described in receiving, and is sent to described laser pen track record driving circuit by described wireless signal receiver.

21. 1 kinds of laser pen track record control methods, is characterized in that, be applicable to the laser pen track record control system described in claim 19 or 20, described control method comprises:

The wireless signal transmitting device of control system described in the switch control rule of the laser pen of described control system sends track record order;

The wireless signal receiver of described control system receives and sends described track record order;

After the laser pen track record driving circuit of the display device of described control system receives described track record order, drive the region variable color be irradiated with a laser, to demonstrate laser pen track.

22. laser pen track record control methods according to claim 21, it is characterized in that, at described wireless signal transmitting device also for launching order of fading under the control of described switch, described wireless signal receiver is also for order of fading described in receiving, and when described order of fading being sent to described laser pen track record driving circuit, described control method also comprises: when described laser pen track eliminated by needs

Wireless signal transmitting device described in the switch control rule of laser pen sends order of fading;

Wireless signal receiver receives and order of fading described in sending;

Fade described in the laser pen track record driving circuit reception of display device after order, drive the region Recovery image color that variable color occurs, to eliminate described laser pen track.