CN103929161A - Reset control system of driver IC, display module and display device - Google Patents
Reset control system of driver IC, display module and display device Download PDFInfo
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- CN103929161A CN103929161A CN201310755332.6A CN201310755332A CN103929161A CN 103929161 A CN103929161 A CN 103929161A CN 201310755332 A CN201310755332 A CN 201310755332A CN 103929161 A CN103929161 A CN 103929161A
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Abstract
The invention discloses a reset control system of a driver IC, a display module and a display device. According to the reset control system of the driver IC, the display module and the display device, electrostatic charge accumulation on an electrostatic detection line by comparing the voltage on the electrostatic detection line with the reference voltage, the driver IC is controlled to reset and to be initialized when the electrostatic charge accumulation on the electrostatic detection line is larger than a preset electrostatic charge accumulation, in this way, the phenomenon that the values of a register of the driver IC are disordered due to electrostatic discharge generated when the electrostatic charge accumulation is excessive is avoided, and normal display of the display module is guaranteed.
Description
Technical field
The present invention relates to electrostatic defending technical field, more particularly, relate to a kind of reset controlling system, demonstration module and display unit of drive IC.
Background technology
Static discharges huge to the harm of electronic product, therefore needs to improve the anti-static electrictity release ability of electronic product.For example existing display unit, in order to strengthen the anti-static electrictity release ability of display unit, need to design a lot of ESD(Electro-Static discharge) protective circuit, but existing antistatic capacity is limited, the anti-static electrictity release poor effect of display unit.
Shown in figure 1, for existing a kind of module schematic diagram that shows, comprise display floater 1, drive IC 2 and system controller 3.Wherein, system controller 3 is electrically connected with drive IC 2, and system controller 3 is for control signal is provided, to control drive IC 2; Drive IC 2 is arranged on display floater 1, and for controlling the picture disply of display floater, the demonstration module using in prior art often there will be demonstration anomaly as shown in Figure 1.
Summary of the invention
As described in background, often there is showing anomaly in existing demonstration module.Inventor studies discovery, the reason that causes display floater normally not show mainly contains the drive IC accumulation of electrostatic charge around, in the time that electrostatic charge accumulation acquires a certain degree, be subject to electrostatic discharge effect, can cause the drive IC register value phenomenon that causes confusion, and then cause showing that anomaly appears showing in module.
Concrete, because the electrostatic defending dynamics of existing demonstration module is limited, in the time showing module work, to have electrostatic charge accumulates around IC, and because the antistatic effect in the region at drive IC place is poor, therefore a large amount of electrostatic charges is to drive IC accumulation around, in the time that drive IC electrostatic charge accumulation around acquires a certain degree, produce static discharge, will affect the register value of drive IC, cause drive IC to occur work confusion phenomena, and then cause demonstration module to occur showing anomaly.
In view of this, the invention provides a kind of reset controlling system, demonstration modular structure and display unit of drive IC, avoided drive IC to occur register value confusion phenomena.
For achieving the above object, the invention provides following technical scheme:
The invention provides a kind of module that shows, comprise drive IC and system controller, also comprise: around the not closed electrostatic detection line of described drive IC, wherein, described drive IC comprises comparison circuit, and described electrostatic detection line is electrically connected with described system controller by described comparison circuit, described comparison circuit compares the electrostatic charge accumulation of described electrostatic detection line and default electrostatic charge accumulation, in the time that described electrostatic charge accumulation is greater than described default electrostatic charge accumulation, generating the described drive IC of instruction resets and initialized control command, described system controller receives control command, and control described drive IC and reset and initialization.
The present invention also provides a kind of drive IC reset controlling system, comprise the not closed electrostatic detection line around described drive IC, comparison circuit and system controller, wherein, described electrostatic detection line is electrically connected with described system controller by described comparison circuit, described comparison circuit compares the electrostatic charge accumulation of described electrostatic detection line and default electrostatic charge accumulation, in the time that described electrostatic charge accumulation is greater than default electrostatic charge accumulation, generating the described drive IC of instruction resets and initialized control command, described system controller receives control command, and control described drive IC and reset and initialization.
In addition, the present invention also provides a kind of module that shows, comprises drive IC, and above-mentioned drive IC reset controlling system.
In addition, the present invention also provides a kind of display unit, comprises above-mentioned demonstration modular structure.
Compared with prior art, technical scheme provided by the present invention has the following advantages:
Reset controlling system, demonstration modular structure and the display unit of drive IC provided by the present invention, by comparing the voltage on electrostatic detection line, to obtain the electrostatic charge accumulation on electrostatic detection line, and in the time that electrostatic charge accumulation is greater than default electrostatic charge accumulation, controlling drive IC resets and initialization, thereby avoid due to the excessive phenomenon that causes drive IC to occur register value confusion of electrostatic charge accumulation, to ensure to show the normal demonstration of module.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is existing a kind of modular structure schematic diagram that shows;
The one demonstration modular structure schematic diagram that Fig. 2 provides for embodiment mono-;
The another kind demonstration modular structure schematic diagram that Fig. 3 provides for embodiment mono-;
Another demonstration modular structure schematic diagram that Fig. 4 provides for embodiment mono-;
A kind of drive IC control system structural representation that Fig. 5 provides for embodiment bis-;
The another kind of drive IC control system structural representation that Fig. 6 provides for embodiment bis-;
Another drive IC control system structural representation that Fig. 7 provides for embodiment bis-;
Another drive IC control system structural representation that Fig. 8 provides for embodiment bis-;
Another drive IC control system structural representation that Fig. 9 provides for embodiment bis-.
Embodiment
For object of the present invention, feature and advantage can be become apparent more, below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
A lot of details are set forth in the following description so that fully understand the present invention, but the present invention can also adopt other to be different from alternate manner described here and implement, those skilled in the art can do similar popularization without prejudice to intension of the present invention in the situation that, and therefore the present invention is not subject to the restriction of following public specific embodiment.
Secondly, the present invention is described in detail in conjunction with schematic diagram, in the time that the embodiment of the present invention is described in detail in detail; for ease of explanation; represent that the profile of device architecture can disobey general ratio and do local amplification, and described schematic diagram is example, it should not limit the scope of protection of the invention at this.In addition in actual fabrication, should comprise, the three-dimensional space of length, width and the degree of depth.
Embodiment mono-
The present embodiment provides a kind of demonstration module, and shown in figure 2, the one providing for embodiment mono-shows modular structure schematic diagram, shows that module comprises:
Drive IC 21 and system controller 22; And,
Around the not closed electrostatic detection line 23 of described drive IC 21;
Wherein, described drive IC 21 comprises comparison circuit 211, and described electrostatic detection line 23 is electrically connected with described system controller 22 by described comparison circuit 211;
Described comparison circuit 211 compares the electrostatic charge accumulation of described electrostatic detection line 23 and default electrostatic charge accumulation, in the time that described accumulation of static electricity amount is greater than described default electrostatic charge accumulation, generates the described drive IC 21 of instruction and reset and initialized control command;
Described system controller 22 receives control command, and controls described drive IC 21 reset initialization.
The demonstration module that the above embodiments of the present application are carried, in the time showing module work, a large amount of electrostatic charges is to drive IC accumulation around.In the time that electrostatic charge accumulates to drive IC, start to accumulate electrostatic charge around the electrostatic detection line of drive IC around.Compare the electrostatic charge accumulation on electrostatic detection line by comparison circuit, to judge drive IC electrostatic charge accumulation around.In the time that the electrostatic charge accumulation on electrostatic detection line is greater than default electrostatic charge accumulation, show that now drive IC electrostatic charge accumulation around may impact the register value of drive IC, need to reset and initialization to drive IC.Therefore comparison circuit generates the reset of instruction drive IC initialized control command.Then receive this control command by system controller, and control drive IC reset initialization.
It should be noted that, above-mentioned default electrostatic charge accumulation is at least the quantity of the electrostatic charge of the minimum that may impact the register value of drive IC, need to specifically calculate for the antistatic effect of different demonstration modules, the present embodiment is not restricted for its concrete numerical value.
Based on above-mentioned object, the accumulation effect of the electrostatic charge of electrostatic detection line directly affects the comparison precision of comparison circuit.In the present embodiment, electrostatic detection line is set to not closed electrostatic detection line, the electrostatic charge of having avoided occurring loop and consume electrostatic detection line, thereby cause the comparison precision of comparison circuit to reduce, finally make the accumulation of drive IC electrostatic charge around impact the register value of drive IC.In addition, preferred, the width of electrostatic detection line is wider than the wire on display floater, so that better induction is through the static of electrostatic detection line, improves the comparison precision of final comparison circuit.Can be not closed side annular, also can be not closed annular for the shape of electrostatic detection line, it not limited, as long as all can around drive IC.
The demonstration module that the present embodiment provides around an electrostatic detection line, and is integrated in drive IC inside by comparison circuit around drive IC, and without the layout design that changes original display floater, and simple in structure being easy to realized.
Shown in figure 3, the structural representation of the concrete demonstration module of the another kind that provides for embodiment mono-, show that module comprises: drive IC 31, system controller 32 and the not closed electrostatic detection line 33 around drive IC 31, drive IC 31 includes comparison circuit 311.
Wherein, described comparison circuit 311 comprises charge comparator 311A, the first input end of described charge comparator 311A is connected with described electrostatic detection line 33, the second input input reference voltage VT of described charge comparator 311A, the output of described charge comparator is connected with described system controller 32;
Described charge comparator 32 receives the virtual voltage of described electrostatic detection line 33, according to the big or small result of more described virtual voltage and described reference voltage V T, determine the relation of electrostatic charge accumulation and the described default electrostatic charge accumulation of described electrostatic detection line 33, and in the time that described electrostatic charge accumulation is greater than described default electrostatic charge accumulation, generates the described drive IC 31 of instruction and reset and initialized control command.
In foregoing, for comparison circuit, need to compare the electrostatic charge accumulation of electrostatic detection line, the embodiment of the present application realizes by charge comparator.Concrete, in the time showing module work, around drive IC, accumulate a large amount of electrostatic charges, because electrostatic detection wire loop is around in drive IC around, therefore electrostatic detection line accumulates electrostatic charge equally, and electrostatic detection line is by the accumulation of electrostatic charge, and causes the variation that occurs voltage on it, and then charge comparator receives the voltage of electrostatic detection line, i.e. virtual voltage.Then charge comparator passes through the size of contrast virtual voltage and reference voltage, and then reflects whether the electrostatic charge accumulation on electrostatic detection line is greater than default electrostatic charge accumulation.If the electrostatic charge accumulation on electrostatic detection line is greater than default electrostatic charge accumulation, generates instruction drive IC and reset and initialized control command.
But consider that electrostatic charge accumulates and the time compole of the process that discharges is short, if charge comparator is judged after electrostatic charge accumulation on electrostatic detection line is greater than default electrostatic charge accumulation and is generated control command within the utmost point short time, if the sensitivity of system controller is low, system controller can not synchronous reaction, finally may cause control command to lose efficacy.
Therefore, more preferred the present embodiment also provides a kind of demonstration module, shown in figure 4, shows that module comprises: drive IC 41, system controller 42 and the not closed electrostatic detection line 43 around drive IC 41, drive IC 41 includes comparison circuit 411.
Wherein, described comparison circuit comprises charge comparator 411A and flag register 411B, the first input end of described charge comparator 411A is connected with described electrostatic detection line 43, the second input input reference voltage VT of described charge comparator 411A, the output of described charge comparator 411A is connected with the input of described flag register 411B, and the output of described flag register 411B is connected with described system controller 42;
Described charge comparator 411A receives the voltage of described electrostatic detection line 43, according to the big or small result of more described virtual voltage and reference voltage V T, determine the relation of electrostatic charge accumulation and the described default electrostatic charge accumulation of described electrostatic detection line 43, and in the time that described electrostatic charge accumulation is greater than described default electrostatic charge accumulation, send excessive signal to described flag register 411B, described flag register 411B generates the described drive IC 41 of instruction and resets and initialized control command.
The comparison circuit that the present embodiment provides, charge comparator is connected with flag register, is then connected with system controller by flag register.The excessive signal of the electrostatic charge accumulation of charge comparator output inputs to flag register, then the mark state of described flag register will change, system controller read in real time the variation of described flag register and the described drive IC that produces resets and initialized control command (state of flag register can be put 1 expression and indicate described drive IC to reset and initialized control command, also can set to 0 and represent that the described drive IC of instruction resets and initialized control command), then system controller control drive IC resets and initialization.Store excessive signal by flag register, avoided system controller because sensitivity is low and can not be to the nonreactive problem of the signal of exporting in the charge comparator utmost point short time.
Embodiment bis-
The present embodiment provides a kind of drive IC reset controlling system, shown in figure 5, a kind of drive IC reset controlling system providing for embodiment bis-, comprise not closed electrostatic detection line 51, comparison circuit 52 and system controller 53 around described drive IC, wherein, described electrostatic detection line 51 is electrically connected with described system controller 53 by described comparison circuit 52;
Described comparison circuit 52 compares the electrostatic charge accumulation of described electrostatic detection line 51 and default electrostatic charge accumulation, in the time that described electrostatic charge accumulation is greater than default electrostatic charge accumulation, generates the described drive IC of instruction and reset and initialized control command;
Described system controller 53 receives control command, and controls described drive IC reset initialization.
The drive IC reset controlling system that the present embodiment provides, can control drive IC and reset and initialization when excessive being subject to electrostatic charge accumulation, and then ensure that the register value of drive IC is normal.
Optionally, shown in figure 6, be the another kind of drive IC reset controlling system that the application provides, comprise not closed electrostatic detection line 61, comparison circuit 62 and system controller 63 around described drive IC.
Wherein, described comparison circuit 62 comprises charge comparator 62A, the first input end of described charge comparator 62A is connected with described electrostatic detection line 61, the second input input reference voltage VT of described charge comparator 62A, the output of described charge comparator 62A is connected with described system controller 63;
Described charge comparator 62A receives the virtual voltage of described electrostatic detection line 61, according to the big or small result of more described virtual voltage and reference voltage V T, determine the relation of electrostatic charge accumulation and the described default electrostatic charge accumulation of described electrostatic detection line 61, and in the time that described electrostatic charge accumulation is greater than described default electrostatic charge accumulation, generates the described drive IC of instruction and reset and initialized control command.
Consider the sensitivity of system controller to signal reaction, the signal that ensures charge comparator output is identified timely, increase the device of the signal storage of a pair of charge comparator output, specifically with reference to shown in figure 7, for another drive IC reset controlling system that embodiment bis-provides, comprise not closed electrostatic detection line 71, comparison circuit 72 and system controller 73 around described drive IC.
Wherein, described comparison circuit 72 comprises charge comparator 72A and flag register 72B, the first input end of described charge comparator 72A is connected with described electrostatic detection line 71, the second input input reference voltage VT of described charge comparator 72A, the output of described charge comparator 72A is connected with the input of described flag register 72B, and the output of described flag register 72B is connected with described system controller 73;
Described charge comparator 72A is for receiving the voltage of described electrostatic detection line 71, according to the big or small result of more described virtual voltage and reference voltage V T, determine the relation of electrostatic charge accumulation and the described default electrostatic charge accumulation of described electrostatic detection line 71, and in the time that described electrostatic charge accumulation is greater than described default electrostatic charge accumulation, send excessive signal to described flag register 72B, described flag register 72B generates the described drive IC of instruction and resets and initialized control command.
Drive IC reset controlling system based on providing in Fig. 6, considers that system controller can not identify charge comparator output signal, charge comparator output signal need to be carried out to level conversion., with reference to shown in figure 8, be specifically another drive IC reset controlling system that embodiment bis-provides, comprise not closed electrostatic detection line 81, comparison circuit 82 and system controller 83 around described drive IC.
Wherein, described comparison circuit 82 comprises charge comparator 82A and level shifting circuit 82B, the first input end of described charge comparator 82A is connected with described electrostatic detection line 81, the second input input reference voltage VT of described charge comparator 82A, the output of described charge comparator 82A is connected with the input of described level shifting circuit 82B, and the output of described level shifting circuit 82B is connected with described system controller 83;
Described charge comparator 82A receives the voltage of described electrostatic detection line 81, according to the big or small result of more described virtual voltage and reference voltage V T, determine the relation of electrostatic charge accumulation and the described default electrostatic charge accumulation of described electrostatic detection line 81, and in the time that described electrostatic charge accumulation is greater than described default electrostatic charge accumulation, send excessive signal to described buffer circuit 82B, described level shifting circuit 82B generates the described drive IC of instruction and resets and initialized control command.
In addition; be directed to the drive IC reset controlling system that above-mentioned all embodiment provide; electrostatic charge accumulation on electrostatic detection line is transients; that considers that the change in voltage of moment damages comparison circuit may; the reset controlling system that the present embodiment provides preferably also comprises protective circuit, and protective circuit can be buffer circuit.Concrete with reference to shown in figure 9, be another drive IC reset controlling system that embodiment bis-provides, comprise not closed electrostatic detection line 91, comparison circuit 92 and system controller 93 around described drive IC, also comprise buffer circuit 94.
Wherein, electrostatic detection line 91 connects the input of buffer circuit 94; the output of buffer circuit 94 connects the input of comparison circuit 92; be that described electrostatic detection line 91 is connected by described buffer circuit 94 with described comparison circuit 92; described buffer circuit 94, for the protection of described comparison circuit 92, prevents that comparison circuit 92 from being caused damage by the change in voltage of moment.
The embodiment of the present application also provides a kind of demonstration module, comprises drive IC, and any drive IC reset controlling system of providing of above-mentioned all embodiment.
The embodiment of the present application also provides a kind of display unit, comprises any one demonstration module that above-mentioned all embodiment provide.
Reset controlling system, demonstration modular structure and the display unit of the drive IC that the embodiment of the present application provides, by comparing the voltage on electrostatic detection line, to obtain the electrostatic charge accumulation on electrostatic detection line, and in the time that electrostatic charge accumulation is greater than default electrostatic charge accumulation, controlling drive IC resets and initialization, thereby avoid due to the excessive phenomenon that causes drive IC to occur register value confusion of electrostatic charge accumulation, to ensure to show the normal demonstration of module.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiment, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. show a module, comprise drive IC and system controller, it is characterized in that, also comprise: around the not closed electrostatic detection line of described drive IC, wherein, described drive IC comprises comparison circuit, and described electrostatic detection line is electrically connected with described system controller by described comparison circuit;
Described comparison circuit compares the electrostatic charge accumulation of described electrostatic detection line and default electrostatic charge accumulation, in the time that described electrostatic charge accumulation is greater than described default electrostatic charge accumulation, generates the described drive IC of instruction and reset and initialized control command;
Described system controller receives control command, and controls described drive IC reset initialization.
2. demonstration module according to claim 1, it is characterized in that, described comparison circuit comprises charge comparator, the first input end of described charge comparator is connected with described electrostatic detection line, the second input input reference voltage of described charge comparator, the output of described charge comparator is connected with described system controller;
Described charge comparator receives the virtual voltage of described electrostatic detection line, according to the big or small result of more described virtual voltage and reference voltage, determine the relation of electrostatic charge accumulation and the described default electrostatic charge accumulation of described electrostatic detection line, and in the time that described electrostatic charge accumulation is greater than described default electrostatic charge accumulation, generates the described drive IC of instruction and reset and initialized control command.
3. demonstration module according to claim 1, it is characterized in that, described comparison circuit comprises charge comparator and flag register, the first input end of described charge comparator is connected with described electrostatic detection line, the second input input reference voltage of described charge comparator, the output of described charge comparator is connected with the input of described flag register, and the output of described flag register is connected with described system controller;
Described charge comparator is for receiving the voltage of described electrostatic detection line, according to the big or small result of more described virtual voltage and reference voltage, determine the relation of electrostatic charge accumulation and the described default electrostatic charge accumulation of described electrostatic detection line, and in the time that described electrostatic charge accumulation is greater than described default electrostatic charge accumulation, send excessive signal to described flag register, described flag register generates the described drive IC of instruction and resets and initialized control command.
4. a drive IC reset controlling system, is characterized in that, comprises not closed electrostatic detection line, comparison circuit and system controller around described drive IC, and wherein, described electrostatic detection line is electrically connected with described system controller by described comparison circuit;
Described comparison circuit compares the electrostatic charge accumulation of described electrostatic detection line and default electrostatic charge accumulation, in the time that described electrostatic charge accumulation is greater than default electrostatic charge accumulation, generates the described drive IC of instruction and reset and initialized control command;
Described system controller receives control command, and controls described drive IC reset initialization.
5. drive IC reset controlling system according to claim 4, it is characterized in that, described comparison circuit comprises charge comparator, the first input end of described charge comparator is connected with described electrostatic detection line, the second input input reference voltage of described charge comparator, the output of described charge comparator is connected with described system controller;
Described charge comparator receives the virtual voltage of described electrostatic detection line, according to the big or small result of more described virtual voltage and described reference voltage, determine the relation of electrostatic charge accumulation and the described default electrostatic charge accumulation of described electrostatic detection line, and in the time that described electrostatic charge accumulation is greater than described default electrostatic charge accumulation, generates the described drive IC of instruction and reset and initialized control command.
6. drive IC reset controlling system according to claim 4, it is characterized in that, described comparison circuit comprises charge comparator and flag register, the first input end of described charge comparator is connected with described electrostatic detection line, the second input input reference voltage of described charge comparator, the output of described charge comparator is connected with the input of described flag register, and the output of described flag register is connected with described system controller;
Described charge comparator receives the voltage of described electrostatic detection line, according to the big or small result of more described virtual voltage and described reference voltage, determine the relation of electrostatic charge accumulation and the described default electrostatic charge accumulation of described electrostatic detection line, and in the time that described electrostatic charge accumulation is greater than described default electrostatic charge accumulation, send excessive signal to described flag register, described flag register generates the described drive IC of instruction and resets and initialized control command.
7. drive IC reset controlling system according to claim 4, it is characterized in that, described comparison circuit comprises charge comparator and level shifting circuit, the first input end of described charge comparator is connected with described electrostatic detection line, the second input input reference voltage of described charge comparator, the output of described charge comparator is connected with the input of described level shifting circuit, and the output of described level shifting circuit is connected with described system controller;
Described charge comparator receives the voltage of described electrostatic detection line, according to the big or small result of more described virtual voltage and described reference voltage, determine the relation of electrostatic charge accumulation and the described default electrostatic charge accumulation of described electrostatic detection line, and in the time that described electrostatic charge accumulation is greater than described default electrostatic charge accumulation, send excessive signal to described buffer circuit, described level shifting circuit generates the described drive IC of instruction and resets and initialized control command.
8. drive IC reset controlling system according to claim 4, is characterized in that, also comprises buffer circuit, and described electrostatic detection line is connected by described buffer circuit with described comparison circuit, and described buffer circuit is for the protection of described comparison circuit.
9. show a module, it is characterized in that, comprise drive IC, and drive IC reset controlling system described in claim 4～8 any one.
10. a display unit, comprises the demonstration modular structure as described in claim 1～3 or 9 any one.
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| CN201310755332.6A CN103929161B (en) | 2013-12-31 | 2013-12-31 | A kind of reset controlling system of driving IC, display module and display device |
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| CN201310755332.6A CN103929161B (en) | 2013-12-31 | 2013-12-31 | A kind of reset controlling system of driving IC, display module and display device |
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| WO2017036098A1 (en) * | 2015-09-02 | 2017-03-09 | 京东方科技集团股份有限公司 | Display device and drive method |
| CN114495860A (en) * | 2022-03-11 | 2022-05-13 | 深圳市华星光电半导体显示技术有限公司 | Display drive circuit and display drive device |
| CN116431418A (en) * | 2023-06-13 | 2023-07-14 | 荣耀终端有限公司 | Screen electrostatic detection method, readable storage medium and electronic device |
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| CN103929161B (en) | 2017-03-01 |
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