CN104036716A - Drive and control circuit and display device of display panel - Google Patents
Drive and control circuit and display device of display panel Download PDFInfo
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- CN104036716A CN104036716A CN201410287339.4A CN201410287339A CN104036716A CN 104036716 A CN104036716 A CN 104036716A CN 201410287339 A CN201410287339 A CN 201410287339A CN 104036716 A CN104036716 A CN 104036716A
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Abstract
The invention discloses a drive and control circuit and a display device of a display panel. The drive and control circuit of the display panel comprises a shutdown sensing module, a switch module and a neutralization electric discharge module, wherein the shutdown sensing module senses shutdown status and controls switching status of the switch module, the switch module controls work status of the neutralization electric discharge module, and the neutralization electric discharge module is used to release shutdown residual charges of the display panel. The drive and control circuit of the display panel is simple in structure and convenient to manufacture, can rapidly release the shutdown residual charges of the display panel, and then restrains a flare phenomenon, and furthermore improves display effects.
Description
Technical field
The present invention relates to display technique field, relate in particular to the Drive and Control Circuit field of display panel.
Background technology
As shown in Figure 7, conventional display device comprises display panel 1, and display panel 1 is provided with many data lines 2, and data driving chip 3 output GTG signals, to data line 2, drive panel display frame.The power supply supply process of whole display device comprises, system is controlled mainboard 5 by analog drive voltage output line 8, and output analog drive voltage is to flexible PCB 4, and the analog drive voltage of conventional mobile phone system controls mainboard output is 2.8V.Analog drive voltage, after capacitance boost, produces positive driving voltage VSP and negative driving voltage VSN.Positive driving voltage VSP and negative driving voltage VSN transfer to data driving chip 3 by positive voltage power line 6 and negative voltage power supply line 7 respectively, as the power supply signal of data driving chip, the positive/negative driving voltage amplitude of conventional mobile phone system controls mainboard output is 5V.Data-driven IC drives signal to generate according to sequential and drives GTG signal.
After display device shutdown, the driving GTG signal in display panel data line cannot discharge fast, forms residual charge.When starting shooting next time, residual charge can affect normal demonstration electric field, makes display panel can not show correct GTG brightness, produces scintillation, causes showing bad.
Summary of the invention
Embodiment of the present invention technical matters to be solved is the shutdown residual charge that discharges fast display panel, suppresses scintillation, improves display effect.
For solving the problems of the technologies described above, the embodiment of the present invention provides a kind of Drive and Control Circuit of display panel, comprise shutdown detecting module, switch module, in and discharge module, the shutdown detecting module detecting on-off state of display panel the on off state of gauge tap module, during switch module is controlled and the duty of discharge module, in and discharge module for discharging the shutdown residual charge of display panel.
Preferably, switch module with in and discharge module be electrically connected in series.
Preferably, described Drive and Control Circuit also comprises system control mainboard and flexible PCB, and described shutdown detecting module is arranged at described system and controls on mainboard or on described flexible PCB; Described switch module is arranged at described system and controls on mainboard or on described flexible PCB; In described, being arranged at described system with discharge module controls on mainboard or on described flexible PCB.
Preferably, described flexible PCB is provided with positive voltage power line and negative voltage power supply line; In described and discharge module be electrically connected between described positive voltage power line and negative voltage power supply line.
Preferably, described system is controlled mainboard and is provided with analog drive voltage output line, and provides analog drive voltage signal to described flexible PCB; Described shutdown detecting module, by the signal intensity of the described analog drive voltage output line of detecting, is exported shutdown detection signal; Described shutdown detection signal comprises Continuity signal and shutdown signal, is respectively used to conducting and the off-state of gauge tap module.
The embodiment of the present invention also provides a kind of display device, comprises display panel and above-mentioned Drive and Control Circuit.
The embodiment of the present invention in the power-supply circuit of display device and electric discharge, reaches the effect of the residual charge in quick release display panel by when shutdown, thus the appearance scintillation while avoiding again starting shooting.And the Drive and Control Circuit of the embodiment of the present invention is simple in structure, be convenient to manufacture.
Accompanying drawing explanation
The Drive and Control Circuit principle schematic that Fig. 1 provides for the embodiment of the present invention;
The display device structure schematic diagram that Fig. 2 provides for another embodiment of the present invention;
The shutdown detecting module circuit theory diagrams that Fig. 3 provides for another embodiment of the present invention;
The switch module that Fig. 4 provides for another embodiment of the present invention and in and discharge module circuit theory diagrams;
The switch module that Fig. 5 provides for another embodiment of the present invention and in and discharge module circuit theory diagrams;
The switch module that Fig. 6 provides for another embodiment of the present invention and in and discharge module circuit theory diagrams;
Fig. 7 is traditional display device structure schematic diagram.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail.Be understandable that, specific embodiment described herein is only for explaining the present invention, but not limitation of the invention.It also should be noted that, for convenience of description, in accompanying drawing, only show part related to the present invention but not all.
Pay particular attention to, " electrical connection " described in the embodiment of the present invention, means the electric connection between components and parts, comprises direct electric connection and is indirectly electrically connected.
The display panel Drive and Control Circuit schematic diagram that Fig. 1 provides for the embodiment of the present invention, Drive and Control Circuit comprise shutdown detecting module 19a, switch module 19b, in and discharge module 19c, wherein, shutdown detecting module 19a, according to the off-mode of detecting display panel, produces shutdown detection signal.Shutdown detection signal specifically comprises Continuity signal and shutdown signal, respectively the conducting of gauge tap module 19b and disconnection off status; Switch module 19b is for controlling and the duty of discharge module 19c; In and discharge module 19c for discharging fast the shutdown residual charge of display panel.Concrete, when display panel is in shutting down moment, shutdown detecting module 19a produces Continuity signal, gauge tap module 19b conducting.In running order with discharge module 19c in making after switch module 19b conducting, discharge fast the electric charge in display panel, so complete the effect at the shutdown residual charge of shutdown abrupt release display panel.
The display device schematic diagram that Fig. 2 provides for another embodiment of the present invention, as shown in Figure 2, display device comprises display panel 21, flexible PCB 24, system control mainboard 25, on display panel 21, be provided with many data lines 22 and data driving chip 23, on flexible PCB 24, be provided with positive voltage power line 26 and negative voltage power supply line 27, system is controlled on mainboard 25 and is provided with analog drive voltage output line 28.System is controlled mainboard 25 provides analog drive voltage signal VCI to flexible PCB 24 by analog drive voltage output line 28, after capacitance boost and acting in opposition, produces positive driving voltage VSP and negative driving voltage VSN.Generally, the analog drive voltage signal VCI of mobile phone is 2.8V, through boosting and acting in opposition after, the positive driving voltage VSP of generation+5V and-the negative driving voltage VSN of 5V, positive/negative driving voltage transfers to data driving chip 23 by positive voltage power line 26 and negative voltage power supply line 27 respectively, data driving chip 23 drives in sequential under the effect of signal, positive/negative driving voltage is converted to the GTG signal that drives pixel.Wherein, on flexible PCB 24, be also provided with shutdown detecting module 29a, switch module 29b, in and discharge module 29c.Switch module 29b and in and discharge module 29c be electrically connected in series, and be all electrically connected between positive voltage power line 26 and negative voltage power supply line 27; Shutdown detecting module 29a is electrically connected on analog drive voltage output line 28, during shutdown, signal in analog drive voltage output line 28 can present the variation tendency of decline, and shutdown detecting module 29a, by the signal intensity of detecting analog drive voltage output line 28, produces shutdown detection signal.When the signal in analog drive voltage output line 28 drops to certain value, shutdown detecting module 29a output Continuity signal, gauge tap module 29b conducting, in running order with discharge module 29c in making, positive/negative voltage in positive voltage power line 26 and negative voltage power supply line 27 in and discharge module 29c in be neutralized, due to now not shutdown completely, so in data line 22, residual positive/negative GTG signal can be neutralized, and completes rapid discharge process.When normal demonstration, the signal in analog drive voltage output line 28 does not change, and the detecting module 29a that shuts down exports shutdown signal, makes switch module 29b in off-state.
Above are only one of preferred embodiment of the present invention, those skilled in the art are understood that, shutdown detecting module, switch module, in and discharge module can be according to actual conditions, in system, control in mainboard and flexible PCB and arrange arbitrarily, the detecting module that also shuts down can be arranged at system and control on mainboard or on flexible PCB; Switch module can be arranged at system and control on mainboard or on flexible PCB; In and discharge module can be arranged at system and control on mainboard or on flexible PCB.As long as keep certain electrical connection, can realize the effect of quick release shutdown residual charge.
The circuit theory diagrams of the shutdown detecting module that Fig. 3 provides for another embodiment of the present invention, as shown in Figure 3, shutdown detecting module 39a is voltage comparator, wherein one end of voltage comparator is electrically connected to analog drive voltage output line 38, other end input fixed threshold voltage, preferably, threshold voltage is 1//3～2/3 of analog drive voltage signal VCI.During shutdown, the signal in analog drive voltage output line 38 can be declined gradually by analog drive voltage signal VCI, when its output signal is less than or equal to threshold voltage, and the output terminal output Continuity signal of shutdown detecting module 39a; When its output signal is greater than threshold voltage, shutdown detecting module 39a output shutdown signal.
The switch module that Fig. 4 provides for another embodiment of the present invention and in and discharge module circuit theory diagrams, as shown in Figure 4, switch module 49b is NMOS pipe, in and discharge module 49c be resistance, switch module 49b and in and discharge module 49c be electrically connected in series, and be electrically connected between positive voltage power line 46 and negative voltage power supply line 47.Switch module 49b is controlled by the detection signal that shuts down, when shutdown detection signal is high level (Continuity signal of the moment shutdown detecting module output of also shutting down is high level), switch module 49b conducting, the positive/negative voltage of positive voltage power line 46 and negative voltage power supply line 47 in and discharge module 49c be neutralized, now not shutdown completely, therefore in data line, residual positive/negative gray scale voltage can be neutralized, and completes the effect of quick release shutdown residual charge.During normal work, shutdown detection signal is low level, and switch module 49c disconnects.
The switch module that Fig. 5 provides for another embodiment of the present invention and in and discharge module circuit theory diagrams, as shown in Figure 5, switch module 59b is PMOS pipe, in and discharge module 59c be diode, switch module 59b and in and discharge module 59c be electrically connected in series, and be electrically connected between positive voltage power line 56 and negative voltage power supply line 57.Switch module 59b is controlled by the detection signal that shuts down, when shutdown detection signal is low level (Continuity signal of the moment shutdown detecting module output of also shutting down is low level), switch module 59b conducting, the positive/negative voltage of positive voltage power line 56 and negative voltage power supply line 57 in and discharge module 59c be neutralized.Now not shutdown completely, so in data line, residual positive/negative gray scale voltage can be neutralized, and completes the effect of quick release shutdown residual charge.During normal work, shutdown detection signal is high level, and switch module 59c disconnects.
The switch module that Fig. 6 provides for another embodiment of the present invention and in and discharge module circuit theory diagrams, as shown in Figure 6, switch module 69b is combinational circuit, in and discharge module 69c by resistance R 2 and diode D1 series connection, formed.Switch module 69b and in and discharge module 69c be electrically connected in series, and be electrically connected between positive voltage power line 66 and negative voltage power supply line 67.Concrete, combinational circuit comprises resistance R 1, the first triode Q1 and the second triode Q2, and resistance R 1 one end is electrically connected on positive voltage power line 66, and the other end is electrically connected to the base stage of emitter and the second triode Q2 of the first triode Q1, also i.e. A point in figure; The base stage of the first triode Q1 is electrically connected to shutdown detecting module output terminal, and collector is electrically connected to electronegative potential; The base stage of the second triode Q2 is electrically connected on the emitter of the first triode Q1, and emitter and collector are electrically connected on respectively positive voltage power line 66 and negative voltage power supply line 67.When shutdown detection signal is low level (Continuity signal of the moment shutdown detecting module output of also shutting down is low level), the first triode Q1 turn-offs, the high level that A point provides for positive voltage power line 66, the second triode Q2 conducting, also be switch module 69b conducting, the positive/negative voltage of positive voltage power line 66 and negative voltage power supply line 67 in and discharge module 69c be neutralized, now not shutdown completely, therefore in data line, residual positive/negative gray scale voltage can be neutralized, and completes the effect of quick release shutdown residual charge.During normal work, shutdown detection signal is high level, and the first triode Q1 conducting drags down A point current potential, and the second triode Q2 turn-offs, and is also that switch module 69b disconnects.
It should be noted that, the switch module in the embodiment of the present invention is not limited to above-mentioned several embodiment, can also be components and parts or other combinational circuits that triode etc. has character.
Obviously, above-described embodiment only, for statement the present invention in detail, does not form limiting the scope of the invention.Under design of the present invention, any various changes and the modification that there is no creative work and carry out of those of ordinary skill in the art, all belongs to the protection domain of the claims in the present invention.
Claims (11)
1. the Drive and Control Circuit of a display panel, comprise shutdown detecting module, switch module, in and discharge module, described shutdown detecting module is detected the on-off state of described display panel and is controlled the on off state of described switch module, during described switch module is controlled and the duty of discharge module, described in and discharge module for discharging the shutdown residual charge of described display panel.
2. Drive and Control Circuit as claimed in claim 1, is characterized in that, described switch module with in and discharge module be electrically connected in series.
3. Drive and Control Circuit as claimed in claim 1, is characterized in that, described Drive and Control Circuit also comprises system control mainboard and flexible PCB, and described shutdown detecting module is arranged at described system and controls on mainboard or on described flexible PCB; Described switch module is arranged at described system and controls on mainboard or on described flexible PCB; In described, being arranged at described system with discharge module controls on mainboard or on described flexible PCB.
4. the Drive and Control Circuit of stating as claim 3, is characterized in that, described flexible PCB is provided with positive voltage power line and negative voltage power supply line; Described switch module and in and discharge module be electrically connected between described positive voltage power line and negative voltage power supply line.
5. the Drive and Control Circuit as described in claim 3 or 4, is characterized in that, described system is controlled mainboard and is provided with analog drive voltage output line, and provides analog drive voltage signal to described flexible PCB; Described shutdown detecting module, by the signal intensity of the described analog drive voltage output line of detecting, is exported shutdown detection signal; Described shutdown detection signal comprises Continuity signal and shutdown signal, is respectively used to conducting and the off-state of gauge tap module.
6. Drive and Control Circuit as claimed in claim 5, it is characterized in that, described shutdown detecting module is voltage comparator, described voltage comparator one end is electrically connected to analog drive voltage output line, the other end is inputted fixing threshold voltage, when the voltage signal of analog drive voltage output line is less than or equal to threshold voltage, described shutdown detecting module output Continuity signal, the conducting of gauge tap module; When the voltage signal of analog drive voltage output line is greater than threshold voltage, described shutdown detecting module output shutdown signal, gauge tap module disconnects.
7. Drive and Control Circuit as claimed in claim 6, is characterized in that, described threshold voltage is 1/3～2/3 of analog drive voltage signal.
8. Drive and Control Circuit as claimed in claim 5, it is characterized in that, described switch module is triode or field effect transistor, wherein, the base stage of described triode or the grid of field effect transistor are electrically connected to shutdown detecting module output terminal, and the emitter and collector of described triode or the source electrode of field effect transistor and drain electrode are electrically connected on respectively positive voltage power line and negative voltage power supply line.
9. Drive and Control Circuit as claimed in claim 5, it is characterized in that, described switch module is combinational circuit, and described combinational circuit comprises resistance, the first triode and the second triode, described resistance one end is electrically connected on positive voltage power line, and the other end is electrically connected to the emitter of the first triode; The base stage of described the first triode is electrically connected to shutdown detecting module output terminal, and collector is electrically connected to electronegative potential; The base stage of described the second triode is electrically connected on the emitter of described the first triode, and emitter and collector are electrically connected on respectively positive voltage power line and negative voltage power supply line.
10. Drive and Control Circuit as claimed in claim 5, is characterized in that, described in and discharge module be resistance or diode, or be composed in series by resistance and diode.
11. 1 kinds of display device, comprise the Drive and Control Circuit of the display panel described in display panel and claim 1-10 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410287339.4A CN104036716A (en) | 2014-06-24 | 2014-06-24 | Drive and control circuit and display device of display panel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410287339.4A CN104036716A (en) | 2014-06-24 | 2014-06-24 | Drive and control circuit and display device of display panel |
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| CN104036716A true CN104036716A (en) | 2014-09-10 |
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| CN201410287339.4A Pending CN104036716A (en) | 2014-06-24 | 2014-06-24 | Drive and control circuit and display device of display panel |
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Cited By (12)
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|---|---|---|---|---|
| CN106531116A (en) * | 2017-01-05 | 2017-03-22 | 京东方科技集团股份有限公司 | Starting method of shut-down residual shadow elimination and starting circuit thereof, power supply IC and display apparatus |
| CN106711958A (en) * | 2016-12-06 | 2017-05-24 | 广东欧珀移动通信有限公司 | Fall-down protection circuit and mobile terminal |
| CN107068036A (en) * | 2017-04-11 | 2017-08-18 | 京东方科技集团股份有限公司 | A kind of drive circuit of display panel, display device and driving method |
| CN107195282A (en) * | 2017-07-17 | 2017-09-22 | 深圳市华星光电半导体显示技术有限公司 | Discharge signal triggers circuit and display device |
| CN107564488A (en) * | 2017-09-28 | 2018-01-09 | 京东方科技集团股份有限公司 | A kind of display panel and display device |
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| CN107809873A (en) * | 2016-09-09 | 2018-03-16 | 三星显示有限公司 | Display device and the method using display device manufacture electronic installation |
| CN108398981A (en) * | 2018-02-12 | 2018-08-14 | 南京中电熊猫平板显示科技有限公司 | A kind of control circuit of display device, display device and its control method |
| WO2019056452A1 (en) * | 2017-09-25 | 2019-03-28 | 惠科股份有限公司 | Circuit board and display |
| CN110400531A (en) * | 2019-07-29 | 2019-11-01 | 昆山龙腾光电有限公司 | A kind of neutralizing circuit and display panel |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0622772A1 (en) * | 1993-04-30 | 1994-11-02 | International Business Machines Corporation | Method and apparatus for eliminating crosstalk in active matrix liquid crystal displays |
| JP2003263129A (en) * | 2002-03-07 | 2003-09-19 | Sanyo Electric Co Ltd | Display device |
| CN1588528A (en) * | 2004-08-09 | 2005-03-02 | 友达光电股份有限公司 | Liquid crystal display and method for improving picture flash and residual picture in turn off process |
| TWI241612B (en) * | 2004-10-22 | 2005-10-11 | Chunghwa Picture Tubes Ltd | Driving method |
| CN1755783A (en) * | 2004-09-27 | 2006-04-05 | 中华映管股份有限公司 | Electric charge neutralization control circuit for liquid crystal display device and control method thereof |
| CN101131487A (en) * | 2006-08-25 | 2008-02-27 | 群康科技(深圳)有限公司 | Power supply circuit and LCD using the same |
| CN201163748Y (en) * | 2008-03-12 | 2008-12-10 | 纬创资通股份有限公司 | Electronic device and related power control unit capable of improving power supply stability when power-on and power-off |
-
2014
- 2014-06-24 CN CN201410287339.4A patent/CN104036716A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0622772A1 (en) * | 1993-04-30 | 1994-11-02 | International Business Machines Corporation | Method and apparatus for eliminating crosstalk in active matrix liquid crystal displays |
| JP2003263129A (en) * | 2002-03-07 | 2003-09-19 | Sanyo Electric Co Ltd | Display device |
| CN1588528A (en) * | 2004-08-09 | 2005-03-02 | 友达光电股份有限公司 | Liquid crystal display and method for improving picture flash and residual picture in turn off process |
| CN1755783A (en) * | 2004-09-27 | 2006-04-05 | 中华映管股份有限公司 | Electric charge neutralization control circuit for liquid crystal display device and control method thereof |
| TWI241612B (en) * | 2004-10-22 | 2005-10-11 | Chunghwa Picture Tubes Ltd | Driving method |
| CN101131487A (en) * | 2006-08-25 | 2008-02-27 | 群康科技(深圳)有限公司 | Power supply circuit and LCD using the same |
| CN201163748Y (en) * | 2008-03-12 | 2008-12-10 | 纬创资通股份有限公司 | Electronic device and related power control unit capable of improving power supply stability when power-on and power-off |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107809873A (en) * | 2016-09-09 | 2018-03-16 | 三星显示有限公司 | Display device and the method using display device manufacture electronic installation |
| CN107809873B (en) * | 2016-09-09 | 2021-09-14 | 三星显示有限公司 | Display device and method of manufacturing electronic device using the same |
| CN106711958A (en) * | 2016-12-06 | 2017-05-24 | 广东欧珀移动通信有限公司 | Fall-down protection circuit and mobile terminal |
| CN106531116A (en) * | 2017-01-05 | 2017-03-22 | 京东方科技集团股份有限公司 | Starting method of shut-down residual shadow elimination and starting circuit thereof, power supply IC and display apparatus |
| CN107068036A (en) * | 2017-04-11 | 2017-08-18 | 京东方科技集团股份有限公司 | A kind of drive circuit of display panel, display device and driving method |
| CN107068036B (en) * | 2017-04-11 | 2019-08-20 | 京东方科技集团股份有限公司 | A kind of driving circuit of display panel, display device and driving method |
| CN107195282A (en) * | 2017-07-17 | 2017-09-22 | 深圳市华星光电半导体显示技术有限公司 | Discharge signal triggers circuit and display device |
| CN107195282B (en) * | 2017-07-17 | 2018-02-16 | 深圳市华星光电半导体显示技术有限公司 | Discharge signal triggers circuit and display device |
| US11069314B2 (en) | 2017-09-25 | 2021-07-20 | HKC Corporation Limited | Circuit board with inter-integrated circuit encryption and display including the same |
| WO2019056452A1 (en) * | 2017-09-25 | 2019-03-28 | 惠科股份有限公司 | Circuit board and display |
| CN107564488A (en) * | 2017-09-28 | 2018-01-09 | 京东方科技集团股份有限公司 | A kind of display panel and display device |
| CN107564457A (en) * | 2017-10-25 | 2018-01-09 | 上海中航光电子有限公司 | A kind of display panel and display device |
| CN108398981A (en) * | 2018-02-12 | 2018-08-14 | 南京中电熊猫平板显示科技有限公司 | A kind of control circuit of display device, display device and its control method |
| CN110400531A (en) * | 2019-07-29 | 2019-11-01 | 昆山龙腾光电有限公司 | A kind of neutralizing circuit and display panel |
| CN111161687A (en) * | 2019-12-12 | 2020-05-15 | 广州视源电子科技股份有限公司 | Charge release method and device, storage medium and electronic equipment |
| CN117496916A (en) * | 2023-12-06 | 2024-02-02 | 惠科股份有限公司 | Picture detection circuit and display device |
| CN117496916B (en) * | 2023-12-06 | 2024-04-19 | 惠科股份有限公司 | Picture detection circuit and display device |
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Application publication date: 20140910 |