CN103927957A - Driving method and device of display device and display facility - Google Patents
Driving method and device of display device and display facility Download PDFInfo
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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
Technical field
The present invention relates to display technique field, relate in particular to a kind of driving method, device and display device of display device.
Background technology
Liquid crystal display (liquid crystal display, LCD) or Organic Light Emitting Diode (Organic Light-Emitting Diode, OLED) notebook computer, personal digital assistant (Personal Digital Assistant have been widely used at present, PDA), flat-surface television, or on the information products such as mobile phone.Conventional liquid crystal is to utilize external drive chip to drive chip on panel to show image, but in order to reduce component number and to reduce manufacturing cost, develop into gradually driving circuit structure is directly made on display panel in recent years, for example adopt the technology that gate driver circuit (gate driver) is integrated in to liquid crystal panel (Gate On Array, GOA).
Current gate driver circuit consists of amorphous silicon grid (ASG, Amorphous Silicon Gate) thin film transistor (TFT) (TFT, Thin Film Transistor) conventionally.If gate driver circuit comprises N shifting deposit unit as shown in Figure 1, each shifting deposit unit comprises a plurality of ASG TFT, and N is positive integer.Wherein, the signal that n shifting deposit unit receives n-2 shifting deposit unit output draws signal Gn-1 on first, the signal that n shifting deposit unit receives n+2 shifting deposit unit output draws signal Gn+1 on second, and n is more than or equal to 3, is less than or equal to N-2, if N is even number, first shifting deposit unit and N-1 shifting deposit unit all receive the first original trigger signal, first shifting deposit unit draws signal Gn-1 using the first original trigger signal on first, N-1 shifting deposit unit draws signal Gn+1 using the first original trigger signal on second, second shifting deposit unit and N shifting deposit unit all receive the second original trigger signal, second shifting deposit unit draws signal Gn-1 using the second original trigger signal on first, N shifting deposit unit draws signal Gn+1 using the second original trigger signal on second, if N is odd number, first shifting deposit unit and N shifting deposit unit all receive the first original trigger signal, first shifting deposit unit draws signal Gn-1 using the first original trigger signal on first, N shifting deposit unit draws signal Gn+1 using the first original trigger signal on second, second shifting deposit unit and N-1 shifting deposit unit all receive the second original trigger signal, second shifting deposit unit draws signal Gn-1 using the second original trigger signal on first, N-1 shifting deposit unit draws signal Gn+1 using the second original trigger signal on second.VGH in Fig. 1 is high level signal, and VGL is low level signal.
When temperature dropped to a certain extent, the leakage current during due to transistorized firing current and shutoff can become and diminish gradually along with temperature reduces all.Therefore, as shown in Figure 2, if first shifting deposit unit receives, the first original trigger signal STV is drawn to signal Gn-1 on first, first shifting deposit unit is under the driving of the signal Gout_3 of clock signal clk, clock obstruction signal CLKB and the 3rd shifting deposit unit output, the signal of output is Gout_1, and the signal at the upper drawknot point PU place in first shifting deposit unit is PU_3; The 3rd shifting deposit unit hinders the signal Gout_1 of signal CLKB, first shifting deposit unit output, under the driving of the signal Gout_5 of the 5th shifting deposit unit output at clock signal clk, clock, the signal of output is Gout_3, and the signal at the upper drawknot point PU place in the 3rd shifting deposit unit is PU_3; The 5th shifting deposit unit hinders the signal Gout_3 of signal CLKB, the 3rd shifting deposit unit output, under the driving of the signal of the 7th shifting deposit unit output at clock signal clk, clock, the signal of output is Gout_5, and the signal at the upper drawknot point PU place in the 5th shifting deposit unit is PU_5.As can be seen from Figure 2 come, the time of the high level signal of each shifting deposit unit output can shorten step by step, until the time of output high level signal is zero.
Therefore, when temperature is lower, leakage current due to the firing current of ASG TFT and while turn-offing all can become gradually and diminish along with temperature reduces, this can cause the time of the shifting deposit unit output high level signal in gate driver circuit to shorten, by accumulating step by step, this may make shifting deposit unit below can not export high level signal again, that is to say, this can cause gate driver circuit to open step by step ability constantly weakening, when temperature is low to moderate to a certain degree, even likely in the display device of normal white display mode, there is white screen, or, in the display device of normal black display mode, there is blank screen.
In sum, in existing gate driver circuit, leakage current due to the firing current of ASG TFT and while turn-offing all can become gradually and diminish along with temperature reduces, this can cause gate driver circuit to open step by step ability constantly weakening, when temperature is low to moderate to a certain degree, even likely in the display device of normal white display mode, there is white screen, or, in the display device of normal black display mode, there is blank screen.
Summary of the invention
The embodiment of the present invention provides a kind of driving method and device of display device, in order to solve in existing gate driver circuit, leakage current due to the firing current of ASG TFT and while turn-offing all can become gradually and diminish along with temperature reduces, thereby causes display device may occur the problem of white screen or blank screen.
Based on the problems referred to above, the driving method of a kind of display device that the embodiment of the present invention provides, comprising:
Determine that current drive current is less than threshold current, described drive current is the electric current that drives the display screen work in display device;
Extend the duration that the cyclical signal in current driving signal is high level, or the voltage of the high level signal in the driving signal that raises current;
Gate driver circuit described in drive after employing is adjusted, described driving signal is for driving the gate driver circuit of this display device to open step by step.
The drive unit of a kind of display device that the embodiment of the present invention provides, comprising:
Determining unit, for determining that current drive current is less than threshold current, described drive current is the electric current that drives the display screen work in display device;
Adjust driver element, for when described determining unit determines that current drive current is less than threshold current, extend the duration that the cyclical signal in current driving signal is high level, or the voltage of the high level signal in the driving signal that raises current; And gate driver circuit described in the drive after employing adjustment, described driving signal is for driving the gate driver circuit of this display device to open step by step.
A kind of display device that the embodiment of the present invention provides, comprises the drive unit of the display device that the embodiment of the present invention provides.
The beneficial effect of the embodiment of the present invention comprises:
The embodiment of the present invention provides a kind of driving method of display device, device and display device, while reducing due to temperature, the leakage current when firing current of the ASG TFT in gate driver circuit and shutoff all can become gradually and diminish along with temperature reduces, thereby causing gate driver circuit to open step by step ability constantly weakens, when temperature constantly reduces, the shifting deposit unit that can not open in gate driver circuit can constantly increase, at driving voltage, drive in the situation that the voltage of the display screen work in display device is constant, the shifting deposit unit that can open constantly reduces, show the continuous minimizing of load, therefore, drive current, drive the electric current of the display screen work in display device constantly to reduce.When drive current is less than threshold current, extend the cyclical signal in current driving signal, as the clock signal duration that is high level, gate driver circuit described in drive after employing is adjusted, therefore, the time that receives the shifting deposit unit output high level signal of this cyclical signal will be elongated, upper drawknot point in the rear one-level shifting deposit unit of this shifting deposit unit (being the transistorized grid of driving grid line in shifting deposit unit) just can charge fully, therefore, the time of the rear one-level shifting deposit unit output high level signal of this shifting deposit unit also can be elongated, that is to say, the number of the shifting deposit unit that can open in gate driver circuit can increase, therefore, reduced the probability that white screen or blank screen appear in display device under low temperature, when drive current is less than threshold current, the voltage of the high level signal in current driving signal raises, gate driver circuit described in drive after employing is adjusted, therefore, the charging rate of the upper drawknot point in the shifting deposit unit in gate driver circuit (being the transistorized grid of driving grid line in shifting deposit unit) can be accelerated, when this can make shifting deposit unit open, the voltage of upper drawknot point can be higher, the time of shifting deposit unit output high level can be elongated, that is to say, the number of the shifting deposit unit that can open in gate driver circuit can increase, therefore, reduced the probability that white screen or blank screen appear in display device under low temperature.
Accompanying drawing explanation
Fig. 1 is the structural representation of the shifting deposit unit in existing gate driver circuit;
Fig. 2 is the sequential chart of the gate driver circuit work shown in Fig. 1;
One of process flow diagram of the driving method of the display device that Fig. 3 provides for the embodiment of the present invention;
Two of the process flow diagram of the driving method of the display device that Fig. 4 provides for the embodiment of the present invention;
Three of the process flow diagram of the driving method of the display device that Fig. 5 provides for the embodiment of the present invention;
Four of the process flow diagram of the driving method of the display device that Fig. 6 provides for the embodiment of the present invention;
Five of the process flow diagram of the driving method of the display device that Fig. 7 provides for the embodiment of the present invention;
The driving method application of the display device that Fig. 8 provides for embodiment of the present invention process flow diagram in practice;
The structural representation of the drive unit of the display device that Fig. 9 provides for the embodiment of the present invention.
Embodiment
The driving method of a kind of display device that the embodiment of the present invention provides, device and display device, when current drive current is less than threshold current, extend the duration that the cyclical signal in current driving signal is high level, or the voltage of the high level signal in the driving signal that raises current; Gate driver circuit described in drive after employing is adjusted, therefore, the time that receives the shifting deposit unit output high level of the driving signal after adjustment can be elongated, the number of the shifting deposit unit that can open in gate driver circuit can increase, therefore, reduced the probability that white screen or blank screen appear in display device under low temperature.Wherein, drive signal for driving the gate driver circuit of this display device to open step by step.
Below in conjunction with Figure of description, the embodiment of the driving method of a kind of display device that the embodiment of the present invention is provided, device and display device describes.
The driving method of a kind of display device that the embodiment of the present invention provides, as shown in Figure 3, comprising:
S301, determine that current drive current is less than threshold current, wherein, drive current is the electric current that drives the display screen work in display device;
In practice, generally will be arranged in the power supply output of the mainboard of the display device that comprises display device, by flexible PCB, be connected to the driving integrated chip of display screen, by driving integrated chip to produce the required drive current of display screen.
When temperature constantly reduces, show that load constantly reduces, drive current will constantly reduce, the white screen of the display screen in display device or blank screen degree will be constantly serious, drive current when drive current is reduced to display screen in display device and normally shows 50% time, display screen in display device will thoroughly shield or blank screen in vain, therefore, drive current when threshold current should be less than display screen in display device and normally shows, 50% of the drive current when being greater than display screen in display device and normally showing.Preferably, 80% of drive current during can normally the showing for the display screen in display device of threshold current.
S302, extend the duration that the cyclical signal in current driving signal is high level, or the voltage of the high level signal in the driving signal that raises current;
Gate driver circuit described in drive after S303, employing are adjusted, wherein, drives signal for driving the gate driver circuit of this display device to open step by step.
Driving signal after adjustment refers to the driving signal after the duration prolongation that cyclical signal is wherein high level, or the driving signal after the rising of the voltage of high level signal wherein.
The driving method of the display device that the embodiment of the present invention provides can, by produce driving the driving integrated chip of the required electric current of display screen in display device to carry out, also can be carried out by other hardware in the display device with drive current.
Determine that current drive current is to be less than threshold current, can be by driving integrated chip self to complete, also can in display device, increase hardware device, as Hall switch detects and judges whether current drive current is less than threshold current, when current drive current is more than or equal to threshold current, Hall switch output low level signal, when current drive current is less than threshold current, Hall switch output high level signal, with the current drive current of the hardware of this driving method of notice execution and the magnitude relationship of threshold current, can be to driving signal to adjust accordingly.
The driving method of the display device that the embodiment of the present invention provides, when drive current is less than threshold current, extend the cyclical signal in current driving signal, as the clock signal duration that is high level, gate driver circuit described in drive after employing is adjusted, therefore, the time that receives the shifting deposit unit output high level signal of this cyclical signal will be elongated, upper drawknot point in the rear one-level shifting deposit unit of this shifting deposit unit (being the transistorized grid of driving grid line in shifting deposit unit) just can charge fully, therefore, the time of the rear one-level shifting deposit unit output high level signal of this shifting deposit unit also can be elongated, that is to say, the number of the shifting deposit unit that can open in gate driver circuit can increase, therefore, reduced the probability that white screen or blank screen appear in display device under low temperature, or when drive current is less than threshold current, the voltage of the high level signal in current driving signal raises, gate driver circuit described in drive after employing is adjusted, therefore, the charging rate of the upper drawknot point in the shifting deposit unit in gate driver circuit (being the transistorized grid of driving grid line in shifting deposit unit) can be accelerated, when this can make shifting deposit unit open, the voltage of upper drawknot point can be higher, the time of shifting deposit unit output high level can be elongated, that is to say, the number of the shifting deposit unit that can open in gate driver circuit can increase, therefore, reduced the probability that white screen or blank screen appear in display device under low temperature.
Further, the driving method of a kind of display device that the embodiment of the present invention provides, as shown in Figure 4, also comprises:
S401, determine that current drive current is more than or equal to threshold current;
S402, adopt the gate driver circuit of current drive display device.
At the current drive current of judgement, be more than or equal to after threshold current, do not change current driving signal.
Further, as shown in Figure 5, the duration that the cyclical signal in the current driving signal of prolongation in S302 is high level, specifically refers to, the cyclical signal extending in current driving signal is for the 1+k*n time the duration of high level, k, and n is positive integer.
For example, driving the cyclical signal in signal is clock signal, work as n=3, k is positive integer, i.e. k=1,2 ... time, clock signal is extended for the duration of high level for the first time, and clock signal the 4th time is for the duration of high level is extended, and clock signal the 7th time is extended for the duration of high level, clock signal the tenth time is for the duration of high level is extended, and clock signal can be extended for the duration of high level every three times.Therefore, the time that receives the shifting deposit unit output high level signal of the clock signal that the duration of high level is extended will be elongated, upper drawknot point in the rear one-level shifting deposit unit of this shifting deposit unit (being the transistorized grid of driving grid line in shifting deposit unit) just can charge fully, therefore, the time of the rear one-level shifting deposit unit output high level signal of this shifting deposit unit also can be elongated, that is to say, the number of the shifting deposit unit that can open in gate driver circuit can increase, therefore, reduced the probability that white screen or blank screen appear in display device under low temperature.
Further, as shown in Figure 6, the duration that the cyclical signal in the current driving signal of prolongation in S302 is high level, specifically refer to, by the cyclical signal in current driving signal the 1+k*n time for the duration of high level adds time step, k, n is positive integer.
For example, driving the cyclical signal in signal is clock signal, works as k=1, and n is positive integer, i.e. n=1,2 ... time, clock signal all can be extended for the duration of high level each time.
For example, can be by starting driving integrated chip initialization, find the register that the cycle all the time of gate driver circuit is arranged, clock signal parameter code in this register is arranged, in making it possible between effective setting area of the clock signal of gate driver circuit (in the interval that the dutycycle that is generally clock signal is 40%～50%), 1% of dutycycle by the current clock signal of each increase extends the dutycycle of clock signal, and after the dutycycle of each prolongation clock signal, the magnitude relationship of judgement drive current and threshold current, until drive current is greater than threshold current.
Further, as shown in Figure 7, the voltage of the high level signal in the current driving signal of rising in S302, specifically refers to, the voltage of the high level signal in current driving signal is added to voltage step size.
For example, can be by starting driving integrated chip initialization, in the voltage range of the high level signal in driving signal (in general, high level signal in driving signal is between 10V～16V), the raise voltage of high level signal of 1% of voltage by the current high level signal of each increase, and after the voltage of each rising high level signal, the magnitude relationship of judgement drive current and threshold current, until drive current is greater than threshold current.
The voltage of the high level signal in the current driving signal that raises, and while comprising the drive gate driver circuit that adopts the high level signal after boosted voltage, the charging rate of the upper drawknot point in the shifting deposit unit in gate driver circuit (being the transistorized grid of driving grid line in shifting deposit unit) can be accelerated, when this can make shifting deposit unit open, the voltage of upper drawknot point can be higher, the time of shifting deposit unit output high level can be elongated, that is to say, the number of the shifting deposit unit that can open in gate driver circuit can increase, therefore, reduced the probability that white screen or blank screen appear in display device under low temperature.
In order to further illustrate the driving method of the display device that the embodiment of the present invention provides, the method for take is below applied in reality as example describes, and the driving method application of the display device that Fig. 8 provides for embodiment of the present invention process flow diagram in practice, comprising:
S801, judge that whether current drive current is less than threshold current, if so, carries out S802 and S803; Otherwise, carry out S804;
Wherein, drive current is the electric current that drives the display screen work in display device, drives signal for driving the gate driver circuit of this display device to open step by step;
S802 concrete operations are: extend the duration that the cyclical signal in current driving signal is high level, or the voltage of the high level signal in the driving signal that raises current;
S803 concrete operations are: gate driver circuit described in the drive after employing is adjusted, described driving signal is for driving the gate driver circuit of this display device to open step by step
S804 concrete operations are: adopt the gate driver circuit in current drive display device.
Based on same inventive concept, the embodiment of the present invention also provides a kind of drive unit of display device, because the principle that this device is dealt with problems is similar to the driving method of aforementioned display, so the enforcement of this device can, referring to the enforcement of preceding method, repeat part and repeat no more.
The drive unit of a kind of display device that the embodiment of the present invention provides, as shown in Figure 9, comprising:
Determining unit 91, for determining that current drive current is less than threshold current, described drive current is the electric current that drives the display screen work in display device;
Adjust driver element 92, for when determining unit 91 determines that current drive current is less than threshold current, extend the duration that the cyclical signal in current driving signal is high level, or the voltage of the high level signal in the driving signal that raises current; And gate driver circuit described in the drive after employing adjustment, described driving signal is for driving the gate driver circuit of this display device to open step by step.
The drive unit of the display device that the embodiment of the present invention provides, when determining unit determines that drive current is less than threshold current, adjust driver element and extend the cyclical signal in current driving signal, as the clock signal duration that is high level, and gate driver circuit described in the drive after employing adjustment, therefore, the time that receives the shifting deposit unit output high level signal of this cyclical signal will be elongated, upper drawknot point in the rear one-level shifting deposit unit of this shifting deposit unit (being the transistorized grid of driving grid line in shifting deposit unit) just can charge fully, therefore, the time of the rear one-level shifting deposit unit output high level signal of this shifting deposit unit also can be elongated, that is to say, the number of the shifting deposit unit that can open in gate driver circuit can increase, therefore, reduced the probability that white screen or blank screen appear in display device under low temperature, or when determining unit determines that drive current is less than threshold current, the voltage of the high level signal in the driving signal that adjustment driver element raises current, and gate driver circuit described in the drive after employing adjustment, therefore, the charging rate of the upper drawknot point in the shifting deposit unit in gate driver circuit (being the transistorized grid of driving grid line in shifting deposit unit) can be accelerated, when this can make shifting deposit unit open, the voltage of upper drawknot point can be higher, the time of shifting deposit unit output high level can be elongated, that is to say, the number of the shifting deposit unit that can open in gate driver circuit can increase, therefore, reduced the probability that white screen or blank screen appear in display device under low temperature.
Further, determining unit 91, also for determining that current drive current is more than or equal to threshold current;
Adjust driver element 92, also for when determining unit 91 determines that current drive current is more than or equal to threshold current, adopt gate driver circuit described in current drive.
Further, adjust driver element 92, specifically for when determining unit 91 determines that current drive current is less than threshold current, extend the duration that the cyclical signal in current driving signal is high level the 1+k*n time, k, n is positive integer, or the voltage of the high level signal in the driving signal that raises current; And gate driver circuit described in the drive after employing adjustment.
Further, adjust driver element 92, specifically for when determining unit 91 determines that current drive current is less than threshold current, cyclical signal in described current driving signal the 1+k*n time is added to time step for the duration of high level, or, the voltage of the high level signal in described current driving signal is added to voltage step size; And gate driver circuit described in the drive after employing adjustment.
A kind of display device that the embodiment of the present invention provides, comprises the drive unit of the display device that the embodiment of the present invention provides.
Through the above description of the embodiments, those skilled in the art can be well understood to the embodiment of the present invention and can realize by hardware, and the mode that also can add necessary general hardware platform by software realizes.Understanding based on such, the technical scheme of the embodiment of the present invention can embody with the form of software product, it (can be CD-ROM that this software product can be stored in a non-volatile memory medium, USB flash disk, portable hard drive etc.) in, comprise some instructions with so that computer equipment (can be personal computer, server, or the network equipment etc.) carry out the method described in each embodiment of the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, the module in accompanying drawing or flow process might not be that enforcement the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device in embodiment can be distributed in the device of embodiment according to embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from the present embodiment.The module of above-described embodiment can be merged into a module, also can further split into a plurality of submodules.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (10)
1. a driving method for display device, is characterized in that, comprising:
Determine that current drive current is less than threshold current, described drive current is the electric current that drives the display screen work in display device;
Extend the duration that the cyclical signal in current driving signal is high level, or the voltage of the high level signal in the driving signal that raises current;
Gate driver circuit described in drive after employing is adjusted, described driving signal is for driving the gate driver circuit of this display device to open step by step.
2. the driving method of display device as claimed in claim 1, is characterized in that, described method also comprises:
Determine that current drive current is more than or equal to threshold current;
Adopt gate driver circuit described in current drive.
3. the driving method of display device as claimed in claim 1, is characterized in that, extends the duration that the cyclical signal in current driving signal is high level, specifically comprises:
Extend the duration that the cyclical signal in current driving signal is high level the 1+k*n time, k, n is positive integer.
4. the driving method of display device as claimed in claim 3, is characterized in that, the cyclical signal extending in current driving signal is the duration of high level the 1+k*n time, specifically comprises:
Cyclical signal in described current driving signal the 1+k*n time is added to time step for the duration of high level.
5. the driving method of display device as claimed in claim 1, is characterized in that, the voltage of the high level signal in described driving signal that raises, specifically comprises:
The voltage of the high level signal in described current driving signal is added to voltage step size.
6. a drive unit for display device, is characterized in that, comprising:
Determining unit, for determining that current drive current is less than threshold current, described drive current is the electric current that drives the display screen work in display device;
Adjust driver element, for when described determining unit determines that current drive current is less than threshold current, extend the duration that the cyclical signal in current driving signal is high level, or the voltage of the high level signal in the driving signal that raises current; And gate driver circuit described in the drive after employing adjustment, described driving signal is for driving the gate driver circuit of this display device to open step by step.
7. device as claimed in claim 6, is characterized in that, described determining unit also for:
Determine that current drive current is more than or equal to threshold current;
Described adjustment driver element also for:
When described determining unit determines that current drive current is more than or equal to threshold current, adopt gate driver circuit described in current drive.
8. device as claimed in claim 6, is characterized in that, described adjusting driver element specifically for:
When described determining unit determines that current drive current is less than threshold current, extend the duration that the cyclical signal in current driving signal is high level the 1+k*n time, k, n is positive integer, or the voltage of the high level signal in the driving signal that raises current; And gate driver circuit described in the drive after employing adjustment.
9. device as claimed in claim 6, is characterized in that, described adjustment driver element specifically for:
When described determining unit determines that current drive current is less than threshold current, cyclical signal in described current driving signal the 1+k*n time is added to time step for the duration of high level, or, the voltage of the high level signal in described current driving signal is added to voltage step size; And gate driver circuit described in the drive after employing adjustment.
10. a display device, is characterized in that, comprises the drive unit of the display device as described in claim 6～9 any one.
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| CN108364614A (en) * | 2018-02-08 | 2018-08-03 | 深圳创维－Rgb电子有限公司 | LED excess temperature protection methods, terminal and computer readable storage medium |
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| US11282908B2 (en) | 2017-07-13 | 2022-03-22 | Kunshan Go-Visionox Opto-Electronics Co., Ltd. | Control methods and control devices for display power supply |
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| CN107424577B (en) * | 2017-08-15 | 2021-01-22 | 京东方科技集团股份有限公司 | Display driving circuit, display device and driving method thereof |
| CN108364614A (en) * | 2018-02-08 | 2018-08-03 | 深圳创维－Rgb电子有限公司 | LED excess temperature protection methods, terminal and computer readable storage medium |
| 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 |
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| CN116913223B (en) * | 2023-09-11 | 2023-11-21 | 惠科股份有限公司 | Driving method, liquid crystal display device and storage medium |
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