CN103927957B - Driving method and device of display device and display facility - Google Patents

Driving method and device of display device and display facility Download PDF

Info

Publication number
CN103927957B
CN103927957B CN201310729250.4A CN201310729250A CN103927957B CN 103927957 B CN103927957 B CN 103927957B CN 201310729250 A CN201310729250 A CN 201310729250A CN 103927957 B CN103927957 B CN 103927957B
Authority
CN
China
Prior art keywords
current
signal
driving
display device
drive signal
Prior art date
Application number
CN201310729250.4A
Other languages
Chinese (zh)
Other versions
CN103927957A (en
Inventor
黄正园
敦栋梁
王徐鹏
丁晓源
李文静
杨旭
叶松
Original Assignee
上海中航光电子有限公司
天马微电子股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 上海中航光电子有限公司, 天马微电子股份有限公司 filed Critical 上海中航光电子有限公司
Priority to CN201310729250.4A priority Critical patent/CN103927957B/en
Publication of CN103927957A publication Critical patent/CN103927957A/en
Application granted granted Critical
Publication of CN103927957B publication Critical patent/CN103927957B/en

Links

Abstract

The embodiment of the invention provides a driving method and device of a display device and a display facility. The driving method and device of the display device and the display facility are used for solving the problem that in an existing gate driving circuit, due to the fact that both startup current and leakage current in the turn-off process of an ASG TFT can gradually decrease as the temperature drops, a display facility may have a white screen or a black screen. The driving method comprises the steps that it is determined that the amplitude of current driving current is smaller than that of threshold current, wherein the driving current is current used for driving a display screen in the display device to work; the time of a periodical signal, in a high-level state, in the current driving signal is prolonged, or the voltage of a high-level signal in the current driving signal is boosted; the adjusted driving signal is used for driving the gate driving circuit, wherein the driving signal is used for driving the gate driving circuit of the display device to be opened step by step.

Description

A kind of driving method of display device, device and display device

Technical field

The present invention relates to display technology field, more particularly to a kind of driving method of display device, device and display device.

Background technology

Liquid crystal display (liquid crystal display, LCD) or Organic Light Emitting Diode (Organic Light- Emitting Diode, OLED) it has been widely used in notebook computer, personal digital assistant (Personal at present Digital Assistant, PDA), on flat-surface television, or the information products such as mobile phone.Conventional liquid crystal is using outer The chip that portion's driving chip comes in driving panel with display image, but in order to reduce component number and reduce manufacturing cost, in recent years Driving circuit structure is directly made on display panel to be developing progressively, for example with by gate driving circuit (gate Driver) it is integrated in the technology of liquid crystal panel (Gate On Array, GOA).

Current gate driving circuit is generally brilliant by non-crystalline silicon grid (ASG, Amorphous Silicon Gate) film Body pipe (TFT, Thin Film Transistor) is constituted.If gate driving circuit includes N number of shift LD as shown in Figure 1 Unit, each shifting deposit unit is positive integer including multiple ASG TFT, N.Wherein, n-th shifting deposit unit receive n-th- 2 signals of shifting deposit unit output receive the n-th+2 shiftings as the first pull-up signal Gn-1, n-th shifting deposit unit Used as the second pull-up signal Gn+1, n is more than or equal to 3 to the signal of position deposit unit output, less than or equal to N-2;If N is even number, First shifting deposit unit and the N-1 shifting deposit unit receive the first original trigger signal, first shift LD , using the first original trigger signal as the first pull-up signal Gn-1, the N-1 shifting deposit unit is by the first initial trigger for unit Signal pulls up signal Gn+1 as second, and it is initial that second shifting deposit unit and n-th shifting deposit unit receive second Trigger signal, second shifting deposit unit posts the second original trigger signal as the first pull-up signal Gn-1, n-th displacement The second original trigger signal is pulled up signal Gn+1 by memory cell;If N is odd number, first shifting deposit unit and N-th shifting deposit unit receives the first original trigger signal, and first shifting deposit unit is by the first original trigger signal Used as the first pull-up signal Gn-1, the first original trigger signal is pulled up signal Gn+1 by n-th shifting deposit unit, Second shifting deposit unit and the N-1 shifting deposit unit receive the second original trigger signal, second shift LD , using the second original trigger signal as the first pull-up signal Gn-1, the N-1 shifting deposit unit is by the second initial trigger for unit Signal is used as the second pull-up signal Gn+1.VGH in Fig. 1 is high level signal, and VGL is low level signal.

When temperature dropped to a certain extent, because the firing current of transistor can be with temperature with leakage current when turning off Reduce to become and taper into.Therefore, if as shown in Fig. 2 first shifting deposit unit is received the first original trigger signal STV hinders signal CLKB and the as the first pull-up signal Gn-1, first shifting deposit unit in clock signal clk, clock Under three drivings of the signal Gout_3 of shifting deposit unit output, the signal of output is Gout_1, first shift LD list The signal at upper drawknot node PU in unit is PU_1;3rd shifting deposit unit hinders signal in clock signal clk, clock CLKB, the signal Gout_1 of first shifting deposit unit output, the signal Gout_5 of the 5th shifting deposit unit output Under driving, the signal of output is Gout_3, and the signal at upper drawknot node PU in the 3rd shifting deposit unit is PU_3;5th The signal that individual shifting deposit unit is exported in clock signal clk, clock obstruction signal CLKB, the 3rd shifting deposit unit Under Gout_3, the driving of the signal of the 7th shifting deposit unit output, the signal of output is Gout_5, the 5th shift LD The signal at upper drawknot node PU in unit is PU_5.As can be seen from Figure 2 come, the height electricity of each shifting deposit unit output The time of ordinary mail number can shorten step by step, until the time of output high level signal is zero.

Therefore, when temperature is relatively low, because firing current and leakage current when turning off of ASG TFT are reduced with temperature Can become and taper into, this can cause the time that the shifting deposit unit in gate driving circuit exports high level signal to shorten, By accumulating step by step, this may make the shifting deposit unit below will not again export high level signal, that is to say, that this can cause Gate driving circuit is opened ability and is constantly weakened step by step, when temperature as little as to a certain degree when, it could even be possible in often white display mould Occur white screen in the display device of formula, or, there is blank screen in the display device of normally-black display pattern.

In sum, in existing gate driving circuit, because firing current and leakage current when turning off of ASG TFT exist As temperature reduction can become and taper into, this can cause gate driving circuit to open ability step by step constantly to weaken, when temperature is low To a certain degree when, it could even be possible to there is white screen in the display device of normal white display pattern, or, in normally-black display pattern Display device in there is blank screen.

The content of the invention

The driving method and device of a kind of display device are the embodiment of the invention provides, is used to solve existing raster data model In circuit, because firing current and leakage current when turning off of ASG TFT are tapered into as temperature reduction can become, so that Display device is caused to be likely to occur the problem of white screen or blank screen.

Based on above mentioned problem, a kind of driving method of display device provided in an embodiment of the present invention, including:

It is determined that current driving current is less than threshold current, the driving current is to drive the display screen work in display device The electric current of work;

Cyclical signal in the current drive signal of extension is the duration of high level, or raises current drive signal In high level signal voltage;

The gate driving circuit, the drive signal is driven to be filled for driving the display using the drive signal after adjustment The gate driving circuit put is opened step by step.

A kind of drive device of display device provided in an embodiment of the present invention, including:

Determining unit, for determining current driving current less than threshold current, the driving current is to drive display dress The electric current of the display screen work in putting;

Adjustment driver element, for when the determining unit determines that current driving current is less than threshold current, extending Cyclical signal in current drive signal is the duration of high level, or raises the high level letter in current drive signal Number voltage;And drive the gate driving circuit, the drive signal to show for driving this using the drive signal after adjustment The gate driving circuit of showing device is opened step by step.

A kind of display device provided in an embodiment of the present invention, including the driving of display device provided in an embodiment of the present invention is filled Put.

The beneficial effect of the embodiment of the present invention includes:

A kind of driving method of display device, device and display device are the embodiment of the invention provides, due to temperature reduction When, the leakage current when firing current of the ASG TFT in gate driving circuit and shut-off can become gradually with temperature reduction Diminish, constantly weaken so as to cause gate driving circuit to open ability step by step, when temperature is constantly reduced, in gate driving circuit The shifting deposit unit that can not be opened can be continuously increased, and in driving voltage, that is, drive the electricity of the display screen work in display device In the case that pressure is constant, the shifting deposit unit that can be opened constantly is reduced, and shows the continuous reduction of load, therefore, drive electricity Stream, that is, drive the electric current of the display screen work in display device constantly to reduce.When driving current is less than threshold current, extension is worked as Cyclical signal in preceding drive signal, such as clock signal are the duration of high level, are driven using the drive signal after adjustment The gate driving circuit, therefore, receive the time of shifting deposit unit output high level signal of the cyclical signal just Can be elongated, the upper drawknot node in the rear stage shifting deposit unit of the shifting deposit unit (drives grid in shifting deposit unit The grid of the transistor of polar curve) just can sufficiently charge, therefore, the rear stage shifting deposit unit of the shifting deposit unit is defeated The time for going out high level signal also can be elongated, that is to say, that the shifting deposit unit that can be opened in gate driving circuit Number can increase, therefore, there is the probability of white screen or blank screen in display device under reducing low temperature;When driving current is less than threshold value During electric current, the voltage of the high level signal in current drive signal is raised, the grid are driven using the drive signal after adjustment Pole drive circuit, therefore, the upper drawknot node in the shifting deposit unit in gate driving circuit (drives i.e. in shifting deposit unit The grid of the transistor of gate line) charging rate can accelerate, when this can cause that shifting deposit unit is opened, the electricity of upper drawknot node Pressure can be higher, and the time of shifting deposit unit output high level can be elongated, that is to say, that can open in gate driving circuit The number of shifting deposit unit can increase, therefore, there is the probability of white screen or blank screen in display device under reducing low temperature.

Brief description of the drawings

Fig. 1 is the structural representation of the shifting deposit unit in existing gate driving circuit;

Fig. 2 is the timing diagram of the gate driving circuit work shown in Fig. 1;

Fig. 3 is one of flow chart of driving method of display device provided in an embodiment of the present invention;

Fig. 4 is the two of the flow chart of the driving method of display device provided in an embodiment of the present invention;

Fig. 5 is the three of the flow chart of the driving method of display device provided in an embodiment of the present invention;

Fig. 6 is the four of the flow chart of the driving method of display device provided in an embodiment of the present invention;

Fig. 7 is the five of the flow chart of the driving method of display device provided in an embodiment of the present invention;

Fig. 8 is the driving method application flow chart in practice of display device provided in an embodiment of the present invention;

Fig. 9 is the structural representation of the drive device of display device provided in an embodiment of the present invention.

Specific embodiment

A kind of driving method of display device provided in an embodiment of the present invention, device and display device, in current driving When electric current is less than threshold current, the cyclical signal extended in current drive signal is the duration of high level, or rising ought The voltage of the high level signal in preceding drive signal;The gate driving circuit is driven using the drive signal after adjustment, because This, the time for receiving the shifting deposit unit output high level of the drive signal after adjustment can be elongated, in gate driving circuit The number of the shifting deposit unit that can be opened can increase, therefore, there is white screen or black in display device under reducing low temperature The probability of screen.Wherein, drive signal is used to drive the gate driving circuit of the display device to open step by step.

With reference to Figure of description, to a kind of driving method of display device provided in an embodiment of the present invention, device and The specific embodiment of display device is illustrated.

A kind of driving method of display device provided in an embodiment of the present invention, as shown in figure 3, including:

S301, determine current driving current less than threshold current, wherein, driving current be drive it is aobvious in display device The electric current of display screen work;

In practice, the power supply output in the mainboard of the display device including display device is will be typically located, by flexibility Circuit board is connected to the driving integrated chip of display screen, the driving current as needed for driving integrated chip produces display screen.

When temperature is constantly reduced, display load constantly reduces, and driving current will constantly reduce, aobvious in display device The white screen or blank screen degree of display screen will be constantly serious, and the display screen in driving current is reduced to display device normally shows When driving current 50% when, display screen in display device will thoroughly white screen or blank screen, therefore, threshold current should Driving current when normally being shown less than the display screen in display device, when normally being shown more than the display screen in display device The 50% of driving current.It is preferred that threshold current can be the driving current when display screen in display device normally shows 80%.

S302, the cyclical signal extended in current drive signal are the duration of high level, or raise current drive The voltage of the high level signal in dynamic signal;

S303, the gate driving circuit is driven using the drive signal after adjustment, wherein, drive signal is used to drive this The gate driving circuit of display device is opened step by step.

Drive signal after adjustment refers to the drive signal after the duration extension that cyclical signal therein is high level, or Drive signal after the voltage rising of person's high level signal therein.

The driving method of display device provided in an embodiment of the present invention can be by producing the display screen driven in display device The driving integrated chip of required electric current is performed, it is also possible to held by other hardware in the display device using driving current OK.

It is determined that current driving current is less than threshold current, can be completed by driving integrated chip itself, it is also possible to Increase hardware device in display device, whether such as Hall switch is detected and judges current driving current less than threshold current, When current driving current is more than or equal to threshold current, Hall switch output low level signal, in current driving current During less than threshold current, Hall switch output high level signal, with the driving electricity for notifying the hardware for performing the driving method current Stream and the magnitude relationship of threshold current, can be adjusted correspondingly to drive signal.

The driving method of the display device that the embodiment of the invention provides, when driving current is less than threshold current, extension Cyclical signal in current drive signal, such as clock signal are the duration of high level, are driven using the drive signal after adjustment The gate driving circuit is moved, therefore, the shifting deposit unit for receiving the cyclical signal exports the time of high level signal Will be elongated, the upper drawknot node in the rear stage shifting deposit unit of the shifting deposit unit (drives i.e. in shifting deposit unit The grid of the transistor of gate line) just can sufficiently charge, therefore, the rear stage shifting deposit unit of the shifting deposit unit The time for exporting high level signal also can be elongated, that is to say, that the shifting deposit unit that can be opened in gate driving circuit Number can increase, therefore, there is the probability of white screen or blank screen in display device under reducing low temperature;Or it is small in driving current When threshold current, the voltage of the high level signal in current drive signal is raised, driven using the drive signal after adjustment The gate driving circuit, therefore, upper drawknot node in the shifting deposit unit in gate driving circuit (i.e. shifting deposit unit It is middle drive gate line transistor grid) charging rate can accelerate, when this can cause that shifting deposit unit is opened, upper drawknot The voltage of point can be higher, and the time of shifting deposit unit output high level can be elongated, that is to say, that the energy in gate driving circuit The number of enough shifting deposit units opened can increase, therefore, reduce display device under low temperature and white screen or blank screen occur Probability.

Further, the driving method of a kind of display device provided in an embodiment of the present invention, as shown in figure 4, also including:

S401, determine current driving current be more than or equal to threshold current;

S402, the gate driving circuit that display device is driven using current drive signal.

I.e. after judging current driving current more than or equal to threshold current, current drive signal is not changed.

Further, as shown in figure 5, the cyclical signal extended in current drive signal in S302 is high level Duration, specifically refers to, and the cyclical signal extended in current drive signal is the duration of high level the 1+k*n times, and k, n is Positive integer.

For example, the cyclical signal in drive signal is clock signal, work as n=3, k is positive integer, i.e. k=1, when 2 ..., Clock signal is extended for the duration of high level for the first time, and clock signal is for the 4th time that the duration of high level is extended, clock letter It is extended for the duration of high level, clock signal the tenth time is extended for the duration of high level, i.e., clock signal is every number the 7th time Every three times for the duration of high level can be extended.Therefore, the displacement for receiving the clock signal that the duration of high level is extended is posted The time of memory cell output high level signal will be elongated, the pull-up in the rear stage shifting deposit unit of the shifting deposit unit Node (grid of the transistor of gate line is driven i.e. in shifting deposit unit) just can sufficiently charge, therefore, the displacement is posted The time of the rear stage shifting deposit unit output high level signal of memory cell also can be elongated, that is to say, that gate driving circuit In the number of the shifting deposit unit that can be opened can increase, therefore, reduce display device under low temperature occur white screen or The probability of blank screen.

Further, as shown in fig. 6, the cyclical signal extended in current drive signal in S302 is high level Duration, is specifically referred to, and the duration that the cyclical signal in current drive signal is for the 1+k*n times high level is added into time step Long, k, n is positive integer.

For example, the cyclical signal in drive signal is clock signal, work as k=1, n is positive integer, i.e. n=1, when 2 ..., Clock signal is each time for the duration of high level can all be extended.

For example, can find and the clock cycle of gate driving circuit is set by starting to driving integrated chip to initialize Clock signal parameter codes in the register are configured, enabling in the clock of gate driving circuit by the register put In effective setting interval of signal (dutycycle of usually clock signal is in 40%~50% interval), by increase every time The 1% of the dutycycle of current clock signal extends the dutycycle of clock signal, and in the duty of extension clock signal every time Than after, the magnitude relationship of driving current and threshold current is judged, until driving current is more than threshold current.

Further, as shown in fig. 7, the voltage of the high level signal in the current drive signal of rising in S302, tool Body refers to that the voltage of the high level signal in current drive signal is added into voltage step size.

For example, can be by starting to driving integrated chip to initialize, the voltage of the high level signal in drive signal In the range of (in general, the high level signal in drive signal is between 10V~16V), by increasing current height electricity every time The 1% of the voltage of ordinary mail number raises the voltage of high level signal, and after the voltage for raising high level signal every time, judges The magnitude relationship of driving current and threshold current, until driving current is more than threshold current.

The voltage of the high level signal in current drive signal is raised, and comprising using the high level risen after high voltage When the drive signal of signal drives gate driving circuit, the upper drawknot node in the shifting deposit unit in gate driving circuit is (i.e. In shifting deposit unit drive gate line transistor grid) charging rate can accelerate, this can cause shifting deposit unit During opening, the voltage of upper drawknot node can be higher, and the time of shifting deposit unit output high level can be elongated, that is to say, that grid The number of the shifting deposit unit that can be opened in drive circuit can increase, therefore, display device occurs under reducing low temperature The probability of white screen or blank screen.

In order to further illustrate the driving method of display device provided in an embodiment of the present invention, it is applied in this way below Illustrated as a example by practice, Fig. 8 is the driving method application stream in practice of display device provided in an embodiment of the present invention Cheng Tu, including:

S801, whether current driving current is judged less than threshold current, if so, performing S802 and S803;Otherwise, perform S804;

Wherein, driving current is the electric current for driving the display screen work in display device, and drive signal is used to drive this to show The gate driving circuit of showing device is opened step by step;

S802 concrete operations are:Cyclical signal in the current drive signal of extension is the duration of high level, Huo Zhesheng The voltage of the high level signal in current drive signal high;

S803 concrete operations are:The gate driving circuit, the drive signal are driven using the drive signal after adjustment Gate driving circuit for driving the display device is opened step by step;

S804 concrete operations are:Gate driving circuit in display device is driven using current drive signal.

Based on same inventive concept, the embodiment of the present invention additionally provides a kind of drive device of display device, due to the dress The principle for putting institute's solve problem is similar to the driving method of aforementioned display, therefore the implementation of the device may refer to foregoing side The implementation of method, repeats part and repeats no more.

A kind of drive device of display device provided in an embodiment of the present invention, as shown in figure 9, including:

Determining unit 91, for determining current driving current less than threshold current, the driving current is to drive display The electric current of the display screen work in device;

Adjustment driver element 92, for when determining unit 91 determines that current driving current is less than threshold current, extending Cyclical signal in current drive signal is the duration of high level, or raises the high level letter in current drive signal Number voltage;And drive the gate driving circuit, the drive signal to show for driving this using the drive signal after adjustment The gate driving circuit of showing device is opened step by step.

The drive device of the display device that the embodiment of the invention provides, determines that driving current is less than threshold value in determining unit During electric current, the cyclical signal that adjustment driver element extends in current drive signal, such as clock signal are the duration of high level, And the gate driving circuit is driven using the drive signal after adjustment, therefore, receive the shift LD of the cyclical signal The time of unit output high level signal will be elongated, the upper drawknot in the rear stage shifting deposit unit of the shifting deposit unit Point (grid of the transistor of gate line is driven i.e. in shifting deposit unit) just can sufficiently charge, therefore, the shift LD The time of the rear stage shifting deposit unit output high level signal of unit also can be elongated, that is to say, that in gate driving circuit The number of the shifting deposit unit that can be opened can increase, therefore, there is white screen or black in display device under reducing low temperature The probability of screen;Or when determining unit determines that driving current is less than threshold current, adjustment driver element raises current driving The voltage of the high level signal in signal, and the gate driving circuit is driven using the drive signal after adjustment, therefore, grid Upper drawknot node in shifting deposit unit in drive circuit (drives the grid of the transistor of gate line i.e. in shifting deposit unit Pole) charging rate can accelerate, when this can cause that shifting deposit unit is opened, the voltage of upper drawknot node can be higher, shift LD The time of unit output high level can be elongated, that is to say, that the shifting deposit unit that can be opened in gate driving circuit Number can increase, therefore, there is the probability of white screen or blank screen in display device under reducing low temperature.

Further, it is determined that unit 91, is additionally operable to determine that current driving current is more than or equal to threshold current;

Adjustment driver element 92, is additionally operable to determine that current driving current is more than or equal to threshold current in determining unit 91 When, the gate driving circuit is driven using current drive signal.

Further, driver element 92 is adjusted, specifically for determining that current driving current is less than threshold in determining unit 91 During value electric current, the cyclical signal extended in current drive signal is the duration of high level the 1+k*n times, and k, n is just whole The voltage of the high level signal in number, or the current drive signal of rising;And driven using the drive signal after adjustment described Gate driving circuit.

Further, driver element 92 is adjusted, specifically for determining that current driving current is less than threshold in determining unit 91 During value electric current, the duration that the cyclical signal in the current drive signal is for the 1+k*n times high level is added into time step It is long, or, the voltage of the high level signal in the current drive signal is added into voltage step size;And using the drive after adjustment Dynamic signal drives the gate driving circuit.

A kind of display device provided in an embodiment of the present invention, including the driving of display device provided in an embodiment of the present invention is filled Put.

Through the above description of the embodiments, those skilled in the art can be understood that the embodiment of the present invention Can be realized by hardware, it is also possible to realized by the mode of software plus necessary general hardware platform.Based on such reason Solution, the technical scheme of the embodiment of the present invention can be embodied in the form of software product, and the software product can be stored one Individual non-volatile memory medium (can be CD-ROM, USB flash disk, mobile hard disk etc.) in, including some instructions are used to so that a meter Calculate the side described in machine equipment (can be personal computer, server, or network equipment etc.) execution each embodiment of the invention Method.

It will be appreciated by those skilled in the art that accompanying drawing is a schematic diagram for preferred embodiment, module or stream in accompanying drawing Journey is not necessarily implemented necessary to the present invention.

It will be appreciated by those skilled in the art that the module in device in embodiment can be divided according to embodiment description It is distributed in the device of embodiment, it is also possible to carry out respective change and be disposed other than in one or more devices of the present embodiment.On Stating the module of embodiment can merge into a module, it is also possible to be further split into multiple submodule.

The embodiments of the present invention are for illustration only, and the quality of embodiment is not represented.

Obviously, those skilled in the art can carry out various changes and modification without deviating from essence of the invention to the present invention God and scope.So, if these modifications of the invention and modification belong to the scope of the claims in the present invention and its equivalent technologies Within, then the present invention is also intended to comprising these changes and modification.

Claims (5)

1. a kind of driving method of display device, it is characterised in that including:
It is determined that current driving current is less than threshold current, the driving current is to drive the display screen work in display device Electric current;
Raise the voltage of the high level signal in current drive signal;
Gate driving circuit is driven using the drive signal after adjustment, the drive signal is for driving the described of the display device Gate driving circuit is opened step by step;
Wherein, the voltage for raising the high level signal in the drive signal, specifically includes:
The voltage of the high level signal in the current drive signal is added into voltage step size, the voltage step size is worked as described The 1% of the voltage of the high level signal in preceding drive signal.
2. the driving method of display device as claimed in claim 1, it is characterised in that methods described also includes:
It is determined that current driving current is more than or equal to threshold current;
The gate driving circuit is driven using current drive signal.
3. a kind of drive device of display device, it is characterised in that including:
Determining unit, for determining current driving current less than threshold current, the driving current is in driving display device Display screen work electric current;
Adjustment driver element, for when the determining unit determines that current driving current is less than threshold current, raising current Drive signal in high level signal voltage;And gate driving circuit, the drive are driven using the drive signal after adjustment Dynamic signal is used to drive the gate driving circuit of the display device to open step by step;
It is described adjustment driver element specifically for:
The voltage of the high level signal in the current drive signal is added into voltage step size, the voltage step size is worked as described The 1% of the voltage of the high level signal in preceding drive signal.
4. drive device as claimed in claim 3, it is characterised in that the determining unit is additionally operable to:
It is determined that current driving current is more than or equal to threshold current;
The adjustment driver element is additionally operable to:
When the determining unit determines that current driving current is more than or equal to threshold current, driven using current drive signal Move the gate driving circuit.
5. a kind of display device, it is characterised in that the driving dress including the display device as described in any one of claim 3~4 Put.
CN201310729250.4A 2013-12-25 2013-12-25 Driving method and device of display device and display facility CN103927957B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310729250.4A CN103927957B (en) 2013-12-25 2013-12-25 Driving method and device of display device and display facility

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310729250.4A CN103927957B (en) 2013-12-25 2013-12-25 Driving method and device of display device and display facility

Publications (2)

Publication Number Publication Date
CN103927957A CN103927957A (en) 2014-07-16
CN103927957B true CN103927957B (en) 2017-05-17

Family

ID=51146163

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310729250.4A CN103927957B (en) 2013-12-25 2013-12-25 Driving method and device of display device and display facility

Country Status (1)

Country Link
CN (1) CN103927957B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI536337B (en) * 2014-12-09 2016-06-01 友達光電股份有限公司 Temperature sensing circuit of display device and corresponding operation method
CN107424577A (en) * 2017-08-15 2017-12-01 京东方科技集团股份有限公司 A kind of display driver circuit, display device and its driving method
CN108364614B (en) * 2018-02-08 2019-12-27 深圳创维-Rgb电子有限公司 LED over-temperature protection method, terminal and computer readable storage medium

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1658270A (en) * 2004-02-20 2005-08-24 三星电子株式会社 Pulse compensator, display device and method of driving the display device
CN1896813A (en) * 2005-07-11 2007-01-17 三菱电机株式会社 Method for driving liquid crystal panel, and liquid crystal display device
CN101324715A (en) * 2007-06-15 2008-12-17 群康科技(深圳)有限公司;群创光电股份有限公司 Liquid crystal display apparatus and drive method thereof

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2389951A (en) * 2002-06-18 2003-12-24 Cambridge Display Tech Ltd Display driver circuits for active matrix OLED displays
KR100735460B1 (en) * 2005-09-09 2007-07-03 삼성전기주식회사 A circuit for controlling led driving with temperature compensation
GB2430069A (en) * 2005-09-12 2007-03-14 Cambridge Display Tech Ltd Active matrix display drive control systems
KR101178910B1 (en) * 2009-07-30 2012-09-03 삼성디스플레이 주식회사 Organic Light Emitting Display Device and Driving Voltage Setting Method Thereof
KR101065419B1 (en) * 2010-02-26 2011-09-16 삼성모바일디스플레이주식회사 OLED display and driving method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1658270A (en) * 2004-02-20 2005-08-24 三星电子株式会社 Pulse compensator, display device and method of driving the display device
CN1896813A (en) * 2005-07-11 2007-01-17 三菱电机株式会社 Method for driving liquid crystal panel, and liquid crystal display device
CN101324715A (en) * 2007-06-15 2008-12-17 群康科技(深圳)有限公司;群创光电股份有限公司 Liquid crystal display apparatus and drive method thereof

Also Published As

Publication number Publication date
CN103927957A (en) 2014-07-16

Similar Documents

Publication Publication Date Title
US7486268B2 (en) Gate driving apparatus and method for liquid crystal display
TWI400686B (en) Shift register of lcd devices
CN101877202B (en) Gate drive circuit and method of driving the same
KR101599351B1 (en) Liquid crystal display and driving method of the same
JP2004524639A (en) Shift register and liquid crystal display device using the same
KR101375863B1 (en) Display apparatus and method of driving the same
JP5710112B2 (en) Gate drive circuit
EP2750122A1 (en) Gate integrated drive circuit, shift register and display screen
US20160351156A1 (en) Shift register unit, gate driving circuit, driving method thereof and display panel
US8643584B2 (en) Gate drive circuit and display apparatus having the same
US9177666B2 (en) Shift register unit and driving method thereof, shift register and display apparatus
EP3125250A1 (en) Gate driving circuit and driving method therefor and display device
KR101294321B1 (en) Liquid crystal display
US20100164915A1 (en) Gate driving circuit and display device having the gate driving circuit
CN100476942C (en) Data driver, liquid crystal display and driving method thereof
CN101202026B (en) Liquid crystal display apparatus
US7812807B2 (en) Display device and driving device
CN102645773B (en) Gate driving circuit and liquid crystal display having same
US20110157124A1 (en) Shift register and display device using the same
TWI426482B (en) Display device and method for controlling gate pulse modulation thereof
TWI404332B (en) Shift register circuit
CN102708778B (en) Shift register and drive method thereof, gate drive device and display device
CN102467890B (en) Shift register unit, gate drive device and liquid crystal display
TW200405235A (en) Shift register and liquid crystal display having the same
CN103714792A (en) Shift register unit, gate drive circuit and display apparatus

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant