CN106847178A - A kind of device and method for reducing oled panel power consumption - Google Patents
A kind of device and method for reducing oled panel power consumption Download PDFInfo
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- CN106847178A CN106847178A CN201710233135.6A CN201710233135A CN106847178A CN 106847178 A CN106847178 A CN 106847178A CN 201710233135 A CN201710233135 A CN 201710233135A CN 106847178 A CN106847178 A CN 106847178A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/04—Structural and physical details of display devices
- G09G2300/0439—Pixel structures
- G09G2300/0443—Pixel structures with several sub-pixels for the same colour in a pixel, not specifically used to display gradations
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/04—Structural and physical details of display devices
- G09G2300/0439—Pixel structures
- G09G2300/0452—Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0666—Adjustment of display parameters for control of colour parameters, e.g. colour temperature
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
- G09G2330/021—Power management, e.g. power saving
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2340/00—Aspects of display data processing
- G09G2340/06—Colour space transformation
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- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of El Displays (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
A kind of device for reducing oled panel power consumption, the device includes memory module, control module, voltage output module and communication module；The memory module, communication module and voltage output module are all connected with control module；The communication module, for receiving signal from source driving chip or logic card；The memory module, the corresponding relation for storing highest grey decision-making or the maximum data voltage and driving voltage in the picture that need to be shown；The control module, for generating control signal and updating the control signal；The voltage output module, for the control signal according to control module and the minimum driving voltage of renewal control signal adjustment output.The device can be exported according to the highest GTG of Display panel picture or maximum data voltage-regulation driving voltage, after ensureing to reduce driving voltage, all of thin film transistor (TFT) is all operated in saturation region, it is to avoid because thin film transistor (TFT) enters linear zone, brightness declines the pixel having, and influences display quality.
Description
Technical field
The present invention relates to field of terminal technology, more particularly, to a kind of device and method for reducing oled panel power consumption.
Background technology
With the development of Display Technique, Organic Light Emitting Diode (Organic Light-Emitting Diode, OLED)
With self-luminous, all solid state, wide viewing angle, respond it is fast many advantages, such as and be considered as having huge application preceding in FPD
Scape, or even be considered as flat panel display product of new generation and technology after liquid crystal LCD, plasma PDP.
But OLED will take advantage in FPD in the market, driving voltage, luminous efficiency of OLED etc. still need into
The improvement of one step.The luminosity of OLED is determined that oled panel display picture is that appropriate reduction drives by the electric current for flowing through device
Voltage, keeps thin film transistor (TFT) (Thin Film Transistor, TFT) to be operated in saturation region, and OLED current keeps constant, just
The power consumption of panel can be reduced, the technology that power consumption is reduced at present is the electric current consumed according to previous frame panel, adjustment next frame electricity
The output voltage of source chip, so as to reduce panel power consumption.
Prior art discloses a kind of device for reducing panel power consumption, referring to Fig. 1, the device of the reduction power consumption is according to upper
The electric current of one pattern plate consumption, adjusts the output voltage of next frame power supply chip, so as to reduce panel power consumption.The device is typically wrapped
Include memory module, current detection module, control module and voltage output module；The memory module is used to store electric current and voltage
Corresponding relation, the current detection module is used to detect the driving current of each frame oled panel that the Control architecture to be used for
Corresponding relation in the electric current and look-up table of previous frame adjusts the voltage of next frame, and voltage output module is used to be OLED
Panel provides driving power supply.
But, when panel works, different GTGs correspond to different gate source voltage VGS, and reduce the driving electricity of OLED
Pressure, actually reduces the pressure difference V of drain electrode and source electrodeDS, so the operating point that the effect for producing is TFT can move from right to left.
Referring to Fig. 2, when TFT is maintained at saturation region, the electric current i of TFT is flowed throughDChange is smaller, and the brightness of OLED maintains stabilization substantially.But
It is once entering variable resistor area, iDIt is rapid to reduce, cause OLED brightness to decline.It is gradually reduced the pressure difference V of drain electrode and source electrodeDS,
Gate source voltage VGSVariable resistor area is introduced into than larger TFT, that is, showing the pixel of high gray in panel
Therefore, the size of current according to panel determines the height of driving voltage, although reduces the power consumption of panel, but deposits
In the risk of image fault.
The content of the invention
For the above-mentioned technical problem in the presence of prior art, the present invention proposes a kind of reduction oled panel power consumption
Device.The device can be according to the highest GTG of Display panel picture or maximum data voltage VdataRegulation driving voltage output,
After ensureing to reduce driving voltage, all of TFT is operated in saturation region, it is to avoid the pixel having is bright because TFT enters linear zone
Degree declines, and influences display quality.
According to an aspect of the invention, it is proposed that it is a kind of reduce oled panel power consumption device, the device include memory module,
Control module, voltage output module and communication module；
The memory module, communication module and voltage output module are all connected with control module；
The communication module, for receiving signal, the signal is including the highest grey decision-making in the picture for needing display or most
Data voltage high and frame synchronizing signal；
The memory module, highest grey decision-making or the maximum data voltage and driving voltage in the picture that need to be shown for storage
Corresponding relation, the corresponding relation formed look-up table；
The control module, for highest grey decision-making or the maximum data in the picture that needs display is obtained by communication module
Voltage；And its corresponding minimum driving voltage is obtained from the corresponding relation of memory module, and generated according to minimum driving voltage
Control signal；
The control module is additionally operable to obtain frame synchronizing signal by communication module, and updates control according to frame synchronizing signal
Signal；
The voltage output module, for the control signal according to control module and renewal control signal adjustment output most
Small driving voltage, and the minimum driving voltage is transferred to oled panel.
The device can be according to the highest GTG of Display panel picture or maximum data voltage VdataRegulation driving voltage is defeated
Go out so that the driving voltage of output is in saturation region in Fig. 1, as long as because ensureing highest grey decision-making or maximum data voltage Vdata
Driving voltage be located at saturation region, then the driving voltage of other GTGs can be located at saturation region.Therefore, the driving voltage of output is
Highest grey decision-making or maximum data voltage are located at the minimum driving voltage of saturation region, you can ensure that all TFT, in saturation region, are protected
The brightness for demonstrate,proving OLED remains stable, and can to greatest extent reduce the power consumption of panel, so as to avoid the electric current according only to panel
Size determines the height of driving voltage, and the pixel for being likely to result in display high gray causes image fault into variable resistor area.
As the further improvement to the device, the communication module, specifically from source driving chip Source IC or
Logic card Tcon receives signal.
As the further improvement to the device, the control module, specifically for according to the highest grey decision-making or most
Data voltage high, its corresponding driving voltage is obtained from look-up table, and it is obtained from driving voltage and be located at saturation region most
Small driving voltage, and control signal is generated according to minimum driving voltage.
As long as ensureing highest grey decision-making or maximum data voltage VdataDriving voltage be located at saturation region, then other GTGs
Driving voltage can be located at saturation region.Therefore, as long as obtaining its minimum driving voltage for being located at saturation region, you can to greatest extent
The power consumption of panel is reduced, while maintaining the brightness of OLED.
As the further improvement to the device, the control module, specifically for often receiving a frame synchronizing signal,
Then update once the control signal.
By the control signal that upgrades in time, the minimum driving voltage of output can be made to upgrade in time, it is to avoid a upper display picture
The minimum driving voltage for obtaining, the minimum driving voltage of not next display picture causes to waste or image fault.
As the further improvement to the device, highest grey decision-making or the maximum data voltage and driving electricity in the look-up table
The corresponding relation of pressure is obtained according to the characteristic curve of TFT.The curve is divided into variable resistor area, pinch off region and saturation region, no
An electric current i can be corresponded to each point on gray scale curveDWith driving voltage VGS。
Used as the further improvement to the device, the voltage output module connects OLED display panel, is oled panel
Driving voltage is provided.
According to another aspect of the invention, it is proposed that a kind of method for reducing oled panel power consumption, comprises the following steps：
Step 1, signal is received from source driving chip Source IC or logic card Tcon, the signal includes needing aobvious
Highest grey decision-making or the maximum data voltage and frame synchronizing signal in the picture for showing；
Highest grey decision-making or the maximum data voltage pass corresponding with driving voltage in the picture that step 2, storage need to show
System, forms look-up table；
Step 3, driving voltage is obtained according to look-up table, and generate control signal；
Step 4, according to frame synchronizing signal, update control signal；
Step 5, the driving voltage exported according to control signal and the adjustment of more new signal.
It is described that minimum driving voltage is obtained according to look-up table as the further improvement to the method, including：
According to the highest grey decision-making or the maximum data voltage, its corresponding driving voltage is obtained from look-up table, and from
Its minimum driving voltage for being located at saturation region is obtained in driving voltage, and control signal is generated according to minimum driving voltage.
It is described according to frame synchronizing signal as the further improvement to the method, control signal is updated, including：
Control module often receives a frame synchronizing signal, then update the control signal generated in a step 3.
As the further improvement to the method, according to control signal and the driving voltage of more new signal adjustment output, bag
Include：
Control module often updates a secondary control signal, and voltage output module then updates once defeated according to the control signal for updating
The driving voltage for going out, and the driving voltage is transferred to oled panel.
Compared with prior art, it is an advantage of the current invention that the device is the highest grey decision-making according to Display panel picture
Or maximum data voltage VdataRegulation driving voltage output, the driving voltage for making output is highest grey decision-making or maximum data voltage
Positioned at the minimum driving voltage of TFT saturation regions, you can reduce driving voltage to greatest extent, while ensureing all TFT all in saturation
Area, maintains the brightness of all pixels, it is to avoid the pixel of high gray is shown in panel causes image to lose further into variable resistor area
Very.
Brief description of the drawings
The preferred embodiments of the present invention are described in detail below in conjunction with accompanying drawing.In figure：
Fig. 1 shows a kind of device for reducing panel power consumption disclosed in prior art.
Fig. 2 shows the characteristic curve schematic diagram of N-type TFT.
Fig. 3 shows the schematic diagram for reducing oled panel power consumption devices according to an embodiment of the invention.
Fig. 4 shows that the first work structuring for reducing oled panel power consumption devices according to an embodiment of the invention is illustrated
Figure.
Fig. 5 shows that the second work structuring for reducing oled panel power consumption devices according to an embodiment of the invention is illustrated
Figure.
Fig. 6 shows the flow chart of the method for reducing oled panel power consumption according to an embodiment of the invention.
In the accompanying drawings, identical part uses identical reference.Accompanying drawing is not drawn according to actual ratio.
Specific embodiment
Below in conjunction with accompanying drawing, the present invention will be further described.
With reference to Fig. 3, propose a kind of device for reducing oled panel power consumption, the device include memory module 2, control module 3,
Voltage output module 4 and communication module 1；
The memory module 2, communication module 1 and voltage output module 4 are all connected with control module 3；
The communication module 1, for receiving signal, the signal is including the highest grey decision-making in the picture for needing display or most
Data voltage high and frame synchronizing signal；
The memory module 2, highest grey decision-making or the maximum data voltage and driving electricity in the picture that need to be shown for storage
The corresponding relation of pressure, the corresponding relation forms look-up table；
The control module 3, for highest grey decision-making or highest number in the picture that needs display is obtained by communication module 1
According to voltage；And its corresponding minimum driving voltage is obtained from the corresponding relation of memory module 2, and given birth to according to minimum driving voltage
Into control signal；
The control module 3 is additionally operable to obtain frame synchronizing signal by communication module 1, and updates control according to frame synchronizing signal
Signal processed；
The voltage output module 4, exports for the control signal according to 3 pieces of mould of control and renewal control signal adjustment
Minimum driving voltage, and the minimum driving voltage is transferred to oled panel.
The device can be according to the highest GTG of Display panel picture or maximum data voltage VdataRegulation driving voltage is defeated
Go out so that the driving voltage of output is in saturation region in Fig. 1, as long as because ensureing highest grey decision-making or maximum data voltage Vdata
Driving voltage be located at saturation region, then the driving voltage of other GTGs can be located at saturation region.Therefore, the driving voltage of output is
Highest grey decision-making or maximum data voltage are located at the minimum driving voltage of saturation region, you can ensure that all TFT, in saturation region, are protected
The brightness for demonstrate,proving OLED remains stable, and can to greatest extent reduce the power consumption of panel, so as to avoid the electric current according only to panel
Size determines the height of driving voltage, and the pixel for being likely to result in display high gray causes image fault into variable resistor area.
In embodiments herein, the communication module 1, specifically from source driving chip Source IC or logic
Plate Tcon receives signal.
In embodiments herein, the control module 3, specifically for according to the highest grey decision-making or the maximum data
Voltage, obtains its corresponding driving voltage, and its simulation for being located at saturation region is obtained from driving voltage from look-up table
Voltage, and control signal is generated according to minimum driving voltage.
The minimum driving voltage can ensure that highest grey decision-making or the maximum data voltage are in the saturation region of TFT, as long as protecting
Card highest grey decision-making or maximum data voltage VdataDriving voltage be located at saturation region, then the driving voltage of other GTGs can position
In saturation region.Therefore, as long as obtaining its minimum driving voltage for being located at saturation region, you can reduce the work(of panel to greatest extent
Consumption, while maintaining the brightness of OLED.
In embodiments herein, the control module 3, specifically for often receiving a frame synchronizing signal, then more
New once described control signal.
By the control signal that upgrades in time, the minimum driving voltage of output can be made to upgrade in time, it is to avoid a upper display picture
The minimum driving voltage for obtaining, the minimum driving voltage of not next display picture causes to waste or image fault.
In embodiments herein, highest grey decision-making or the maximum data voltage are right with driving voltage in the look-up table
Should be related to obtained according to the characteristic curve of TFT.The curve is divided into variable resistor area, pinch off region and saturation region, different GTGs
Each point on curve can correspond to an electric current iDWith driving voltage VGS。
In embodiments herein, the connection OLED display panel of the voltage output module 4, for oled panel provides electricity
Pressure.
In a preferred embodiment, referring to Fig. 4, a kind of device 101 of reduction oled panel power consumption, including communication mould
Block 11, control module 31, voltage output module 41 and memory module 21, the difference connection communication of the control module 31 module 11,
Memory module 21 and voltage output module 41, the communication module 11 obtain signal from source driving chip 51, and the voltage is defeated
Go out module 41 and connect OLED display panel for it provides driving voltage.
The device 101 receives signal from source driving chip 51, and the signal includes highest GTG or maximum data voltage
Vdata, and according to the Signal Regulation driving voltage output for receiving, you can ensure all TFT all in saturation region, it is ensured that OLED's
Brightness remains stable, and can to greatest extent reduce the power consumption of panel, so as to the size of current avoided according only to panel is determined
The height of driving voltage, the pixel for being likely to result in display high gray causes image fault into variable resistor area.
In another preferred embodiment, referring to Fig. 5, a kind of device 102 of reduction oled panel power consumption, including communication
Module 12, control module 32, voltage output module 42 and memory module 22；The control module 32 distinguishes connection communication module
12nd, control module 32 and voltage output module 42, the connection logic card 72 of the communication module 12, believe for being obtained from logic card 72
Number, the logic card 72 connection source driving chip 52 and grid drive chip 82, the source driving chip 52, raster data model
Chip 82 and voltage output module 42 are all connected with OLED display panel, and voltage output module 42 provides driving for OLED display panel
Voltage.
The source driving chip 52 is responsible for for image data being sent to panel, possesses image displaying function；The raster data model
Chip 82 is used to control the switch of TFT；The logic card 72 is used to control source driving chip 52 and grid drive chip 82
Sequential working.
The device 102 receives signal from logic card 72, and the signal includes highest GTG or maximum data voltage Vdata, and
According to the Signal Regulation driving voltage output for receiving, you can ensure all TFT all in saturation region, it is ensured that the brightness of OLED is maintained
Stabilization, and the power consumption of panel can be to greatest extent reduced, so as to the size of current avoided according only to panel determines driving voltage
Height, be likely to result in display high gray pixel cause image fault into variable resistor area.
In embodiments herein, referring to Fig. 6, a kind of method of reduction oled panel power consumption comprises the following steps：
Step 1, signal is received from source driving chip Source IC or logic card Tcon, the signal includes needing aobvious
Highest grey decision-making or the maximum data voltage and frame synchronizing signal in the picture for showing；
Highest grey decision-making or the maximum data voltage pass corresponding with driving voltage in the picture that step 2, storage need to show
System, forms look-up table；
Step 3, driving voltage is obtained according to look-up table, and generate control signal；
Step 4, according to frame synchronizing signal, update control signal；
Step 5, the driving voltage exported according to control signal and the adjustment of more new signal.
It is described that minimum driving voltage is obtained according to look-up table in embodiments herein, including：
According to the highest grey decision-making or the maximum data voltage, its corresponding driving voltage is obtained from look-up table, and from
Its minimum driving voltage for being located at saturation region is obtained in driving voltage, and control signal is generated according to minimum driving voltage.
It is described according to frame synchronizing signal in embodiments herein, control signal is updated, including：
Control module often receives a frame synchronizing signal, then update the control signal generated in a step 3.
In embodiments herein, according to control signal and the driving voltage of more new signal adjustment output, including：
Control module often updates a secondary control signal, and voltage output module then updates once defeated according to the control signal for updating
The driving voltage for going out, and the driving voltage is transferred to oled panel.
Compared with prior art, it is an advantage of the current invention that the device is the highest grey decision-making according to Display panel picture
Or maximum data voltage VdataRegulation driving voltage output, the driving voltage for making output is highest grey decision-making or maximum data voltage
Positioned at the minimum driving voltage of TFT saturation regions, you can reduce driving voltage to greatest extent, while ensureing all TFT all in saturation
Area, maintains the brightness of all pixels, it is to avoid the pixel of high gray is shown in panel causes image to lose further into variable resistor area
Very.
The preferred embodiment of the present invention is the foregoing is only, but the scope of the present invention is not limited thereto, Ren Heben
The technical staff in field can easily be changed or change in technical scope disclosed by the invention, and this change or change
Change should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claims
Enclose and be defined.
Claims (10)
1. it is a kind of reduce oled panel power consumption device, it is characterised in that the device include memory module, control module, voltage
Output module and communication module；
The memory module, communication module and voltage output module are all connected with control module；
The communication module, for receiving signal, the signal includes needing highest grey decision-making or highest number in the picture of display
According to voltage and frame synchronizing signal；
The memory module, highest grey decision-making or the maximum data voltage are right with driving voltage in the picture that need to be shown for storage
Should be related to, the corresponding relation forms look-up table；
The control module, for highest grey decision-making in the picture that needs display is obtained by communication module or the maximum data electricity
Pressure；And its corresponding minimum driving voltage positioned at saturation region is obtained from the look-up table of memory module, and according to simulation
Voltage generates control signal；
The control module is additionally operable to obtain frame synchronizing signal by communication module, and updates the control according to frame synchronizing signal
Signal；
The voltage output module, drives for the control signal according to control module and the minimum for updating control signal adjustment output
Dynamic voltage.
2. device according to claim 1, it is characterised in that the communication module, specifically from source driving chip or
Logic card receives signal.
3. device according to claim 1, it is characterised in that the control module, specifically for according to highest ash
Rank is worth or the maximum data voltage, obtains its corresponding driving voltage from look-up table, and obtained from driving voltage its be located at it is full
With the minimum driving voltage in area, and according to minimum driving voltage generate control signal.
4. device according to claim 3, it is characterised in that the control module, specifically for often receiving a frame
Synchronizing signal, then update once the control signal.
5. device according to claim 1, it is characterised in that highest grey decision-making or the maximum data voltage in the look-up table
With the corresponding relation of driving voltage obtained according to the characteristic curve of thin film transistor (TFT).
6. the device according to any one of claim 1-5, it is characterised in that the voltage output module connection OLED shows
Show panel, for oled panel provides driving voltage.
7. it is a kind of reduce oled panel power consumption method, it is characterised in that comprise the following steps：
Step 1, signal is received from source driving chip or logic card, the signal includes needing the highest ash in the picture of display
Rank is worth or the maximum data voltage and frame synchronizing signal；
The corresponding relation of highest grey decision-making or the maximum data voltage and driving voltage, shape in the picture that step 2, storage need to show
Into look-up table；
Step 3, minimum driving voltage is obtained according to look-up table, and generate control signal；
Step 4, according to frame synchronizing signal, update control signal；
Step 5, the driving voltage exported according to control signal and the adjustment of more new signal.
8. method according to claim 7, it is characterised in that described that minimum driving voltage is obtained according to look-up table, including：
According to the highest grey decision-making or the maximum data voltage, its corresponding driving voltage is obtained from look-up table, and from driving
Its minimum driving voltage for being located at saturation region is obtained in voltage, and control signal is generated according to minimum driving voltage.
9. method according to claim 8, it is characterised in that described according to frame synchronizing signal, updates control signal, bag
Include：
Control module often receives a frame synchronizing signal, then update the control signal generated in a step 3.
10. method according to claim 7, it is characterised in that according to control signal and the drive of more new signal adjustment output
Dynamic voltage, including：
Control module often updates a secondary control signal, and voltage output module then updates what is once exported according to the control signal for updating
Driving voltage, and the driving voltage is transferred to oled panel.
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Cited By (7)
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| CN108154847A (en) * | 2018-01-19 | 2018-06-12 | 昆山国显光电有限公司 | The driving device and driving method of organic light emitting display |
| CN109147675A (en) * | 2017-06-28 | 2019-01-04 | 昆山国显光电有限公司 | Voltage adjusting device and voltage adjusting method |
| WO2019033612A1 (en) * | 2017-08-17 | 2019-02-21 | 深圳市华星光电半导体显示技术有限公司 | Method and apparatus for driving organic light-emitting diode display |
| CN109901693A (en) * | 2019-01-11 | 2019-06-18 | 北京集创北方科技股份有限公司 | Method for managing power supply, power-supply management system and display system |
| CN111432520A (en) * | 2020-04-02 | 2020-07-17 | 广东晟合技术有限公司 | Balancing method for driving O L ED panel with low power consumption |
| WO2020249066A1 (en) * | 2019-06-14 | 2020-12-17 | 华为技术有限公司 | Voltage regulation method and electronic device |
| CN113658547A (en) * | 2021-08-03 | 2021-11-16 | 武汉天马微电子有限公司 | Display panel and display device |
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| US11854494B2 (en) | 2019-06-14 | 2023-12-26 | Huawei Technologies Co., Ltd. | Voltage adjustment method and electronic device |
| CN111432520A (en) * | 2020-04-02 | 2020-07-17 | 广东晟合技术有限公司 | Balancing method for driving O L ED panel with low power consumption |
| CN111432520B (en) * | 2020-04-02 | 2022-04-19 | 晟合微电子(肇庆)有限公司 | Equalization method for driving OLED panel with low power consumption |
| CN113658547A (en) * | 2021-08-03 | 2021-11-16 | 武汉天马微电子有限公司 | Display panel and display device |
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